CALENDAR FOR WATER YEAR 2002
2001
OCTOBER
NOVEMBER
S
M
T
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
31
4
11
18
25
5
12
19
26
6
13
20
27
S
4
11
18
25
M
5
12
19
26
T
6
13
20
27
DECEMBER
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
S
2
9
16
23
30
M
3
10
17
24
31
T
4
11
18
25
W
T
F
S
6
13
20
27
7
14
21
28
1
8
15
22
29
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
T
F
S
7
14
21
28
1
8
15
22
29
5
12
19
26
2002
JANUARY
S
6
13
20
27
FEBRUARY
M
T
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
31
4
11
18
25
5
12
19
26
S
3
10
17
24
M
4
11
18
25
T
W
T
MARCH
F
S
1
2
5
6
7
8
9
12 13 14 15 16
19 20 21 22 23
26 27 28
APRIL
S
3
10
17
24
31
M
4
11
18
25
T
5
12
19
26
MAY
S
M
T
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
4
11
18
25
5
12
19
26
6
13
20
27
S
5
12
19
26
M
6
13
20
27
JULY
M
T
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
31
4
11
18
25
5
12
19
26
6
13
20
27
S
4
11
18
25
M
T
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
31
4
11
18
25
5
12
19
26
T
6
13
20
27
6
13
20
27
JUNE
S
2
9
16
23
30
M
3
10
17
24
AUGUST
S
W
T
4
11
18
25
W
5
12
19
26
6
13
20
27
SEPTEMBER
W
T
F
S
S
M
T
W
T
F
S
7
14
21
28
1
8
15
22
29
2
9
16
23
30
3
10
17
24
31
1
8
15
22
29
2
9
16
23
30
3
10
17
24
4
11
18
25
5
12
19
26
6
13
20
27
7
14
21
28
U.S. Department of the Interior
U.S. Geological Survey
Water Resources Data
Arizona
Water Year 2002
By H.F. McCormack, G.G. Fisk, N.R. Duet, D.W. Evans,
W.P. Roberts, and N.K. Castillo
Water-Data Report AZ-02-1
Prepared in cooperation with the
State of Arizona and with other agencies
UNITED STATES DEPARTMENT OF THE INTERIOR
GALE A. NORTON, Secretary
U.S. GEOLOGICAL SURVEY
Charles G. Groat, Director
For information on the water program in Arizona write to
District Chief, Water Resources Division
U.S. Geological Survey
520 North Park Avenue, Suite 221
Tucson, Arizona 85719-5035
2003
PREFACE
This volume of the annual hydrologic data report of Arizona is one of a series of annual reports that
document hydrologic data gathered from the U.S. Geological Survey's surface- and ground-water
data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of streamflow,
ground-water levels, and quality of water provide the hydrologic information needed by State, local, and
Federal agencies, and the private sector for developing and managing our Nation's land and water
resources.
This report is the culmination of a concerted effort by dedicated personnel of the Survey who collected,
compiled, analyzed, verified, and organized the data, and who typed, edited, and assembled the report.
The authors had primary responsibility for assuring that the information contained herein is accurate,
complete, and adheres to Survey policy and established guidelines. The following individuals contributed
significantly to the collection, processing, and tabulation of the data:
Fletcher C. Brinkerhoff
Robert A. Fritzinger
Christie M. O’Day
Ryan M. Scott
Tony D. Carson
Chance C. Fulk
James M. Parent
Kent M. Sherman
Curtis W. Crouch
John W. Heaton
Cheryl K. Partin
James S. Tunnell
Michael J. Dai
Robert J. Hemauer
Arthur D. Rees
Hugh L. Darling
Frank S. Johnson
Mike L. Sanders
Kenneth D. Fossum
Frank G. Laguna
Henry W. Sanger
Shirley D. Francisco
Jennifer L. Menefee
Frank W. Schaffner
This report was prepared in cooperation with the State of Arizona and with other agencies, under the
general supervision of Christopher F. Smith, Data Chief, Arizona.
REPORT DOCUMENTATION PAGE
Form Approved
OMB No. 0704-0188
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and
maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information,
including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington,
VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503.
1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
April 2003
3. REPORT TYPE AND DATES COVERED
Annual--Oct 1, 2001 to Sept. 30, 2002
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Water Resources Data for Arizona, Water Year 2002
6. AUTHOR(S)
H.F. McCormack, G.G. Fisk, N.R. Duet, D.W. Evans, W.P. Roberts and
N.K. Castillo
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
USGS-WDR-AZ-02-1
U.S. Geological Survey, WRD
520 North Park Avenue, Suite 221
Tucson, Arizona 85719
10. SPONSORING / MONITORING
AGENCY REPORT NUMBER
9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES)
U.S. Geological Survey, WRD
520 North Park Avenue, Suite 221
Tucson, Arizona 85719
USGS-WDR-AZ-02-1
11. SUPPLEMENTARY NOTES
Prepared in cooperation with the State of Arizona and with other agencies.
12b. DISTRIBUTION CODE
12a. DISTRIBUTION / AVAILABILITY STATEMENT
No restriction on distribution. This report may be purchased from: National
Technical Information Service, Springfield, VA 22161
13. ABSTRACT (Maximum 200 words)
The Arizona District water data report includes records on both surface water and ground water in the State for
water year 2002. Specifically, it contains: (1) discharge records for 201 streamflow-gaging stations, for 29 creststage, partial-record streamflow stations, and 48 miscellaneous sites; (2) stage and (or) content only records for 10
lakes and reservoirs; (3) water-quality records for 21 streamflow-gaging stations and 65 wells; and (4) water levels
for 18 wells.
14. SUBJECT TERMS
15. NUMBER OF PAGES
*Arizona, *Hydrologic data, *Surface water, *Ground water, *Water quality, Flow
rate, Gaging stations, Lakes, Reservoirs, Chemical analyses, Sediment, Water Temperatures, Sampling sites, Water levels, Water analyses.
17. SECURITY CLASSIFICATION
OF REPORT
UNCLASSIFIED
NSN 7540-01-280-5500
18. SECURITY CLASSIFICATION
OF THIS PAGE
19. SECURITY CLASSIFICATION
OF ABSTRACT
337 pages
16. PRICE CODE
20. LIMITATION OF ABSTRACT
UNCLASSIFIED
Standard Form 298 (Rev. 2-89)
Prescribed by ANSI Std 239-18
298-102
v
CONTENTS
Page
Preface
...................................................................................................................................................
List of surface-water stations, in downstream order, for which records
are published in this volume ................................................................................................................
List of discontinued surface-water discharge stations ................................................................................
List of discontinued surface-water quality stations.....................................................................................
Introduction .................................................................................................................................................
Cooperation .................................................................................................................................................
Hydrologic conditions.................................................................................................................................
Water use ............................................................................................................................................
Special networks and programs ..................................................................................................................
Explanation of the records ..........................................................................................................................
Station identification numbers .............................................................................................................
Downstream order system ...............................................................................................................
Latitude-longitude system ...............................................................................................................
Local well numbers .........................................................................................................................
Records of stage and water discharge..................................................................................................
Data collection and computation.....................................................................................................
Data presentation.............................................................................................................................
Station manuscript ....................................................................................................................
Data table of daily mean values ...............................................................................................
Statistics of monthly mean data ................................................................................................
Summary statistics ....................................................................................................................
Identifying estimated daily discharge..............................................................................................
Accuracy of the records...................................................................................................................
Other records available....................................................................................................................
Records of surface-water quality .........................................................................................................
Classification of records..................................................................................................................
Arrangement of records...................................................................................................................
Onsite measurements and sample collection...................................................................................
Water temperature ...........................................................................................................................
Sediment .........................................................................................................................................
Cross-sectional data.........................................................................................................................
Laboratory measurements ...............................................................................................................
Identifying estimated concentrations...............................................................................................
Data presentation.............................................................................................................................
Codes ...............................................................................................................................................
Dissolved trace-element concentrations..........................................................................................
Change in National Trends Network procedures ............................................................................
Quality-control data.........................................................................................................................
Blank samples ...........................................................................................................................
Reference samples ....................................................................................................................
Replicate samples......................................................................................................................
Spike samples............................................................................................................................
Records of ground-water levels ...........................................................................................................
Records of ground-water quality .........................................................................................................
Data collection and computation.....................................................................................................
Data presentation.............................................................................................................................
iii
vii
xiii
xix
1
2
2
3
5
7
7
7
7
8
8
10
11
11
12
13
13
14
14
15
15
15
16
16
17
17
17
17
18
18
19
20
20
20
20
21
21
21
21
22
22
22
vi
CONTENTS
Page
Access to WATSTORE data.......................................................................................................................
22
Definition of terms ......................................................................................................................................
23
Publications on techniques of water-resources investigations ....................................................................
40
Hydrologic data from streamflow stations..................................................................................................
47
Hydrologic data from partial-record stations and miscellaneous sites .......................................................
308
Maximum discharge at crest-stage partial-record stations...................................................................
308
Discharge measurements at miscellaneous sites..................................................................................
312
Ground-water areas and abbreviations........................................................................................................
316
Water levels in selected wells in ground-water areas in Arizona ...............................................................
317
Quality of water in selected wells in ground-water areas in Arizona .........................................................
320
Site information ...................................................................................................................................
320
Water-quality data................................................................................................................................
322
Index .........................................................................................................................................................
331
ILLUSTRATIONS
Figure
1.
Graphs showing mean monthly discharge for the 2002 water year compared
with median of mean monthly discharge for period 1950–2002 at four representative
gaging stations for which long-term records are available ..................................................
4
2.
Diagram showing system for numbering wells and miscellaneous sites .............................
9
3.
Diagram showing well-numbering and naming system.......................................................
9
4.
Map showing locations of streamflow-gaging stations,
water year 2002 ..............................................................................................................
5.
Map showing locations of surface-water-quality stations,
water year 2002 ..............................................................................................................
6.
45
46
Schematic diagram showing streamflow-gaging stations and water-quality
stations on streams, diversions, and return flows between Imperial Dam and
the southerly international boundary..............................................................................
7.
Map showing locations of partial-record streamflow-gaging stations,
water year 2002 ..............................................................................................................
8.
9.
279
307
Index map of Arizona Department of Water Resources ground-water
basins, Active Management Areas, and Irrigation Non-Expansion Areas.....................
314
Index map of U.S. Geological Survey ground-water areas in Arizona................................
315
TABLES
Calendar for water year 2002........................................................................................................
inside front cover
Factors for converting inch-pound units to International (SI) units..............................................
inside back cover
vii
SURFACE-WATER STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS
ARE PUBLISHED IN THIS VOLUME
[Letters after station name designate type of data: (c) chemical; (d) discharge: (e) elevation; (g) gage height; (m) microbiological (bacteria);
(n) turbidity; (p) pesticide; (q) specific conductance (daily); (r) radiochemical; (s) suspended sediment; (t) water temperature (daily): (v) contents]
Station name
Station number
Page
COLORADO RIVER BASIN
SAN JUAN RIVER BASIN
Colorado River:
Chinle Creek at Chinle (d).........................................................................................................
09379025
47
Lukachukai Creek near Lukachukai (d) ....................................................................................
09379050
48
Laguna Creek at Dennehotso (d) ...............................................................................................
09379180
49
Chinle Creek near Mexican Water (d) ...................................................................................
09379200
50
Lake Powell at Glen Canyon Dam (v)...........................................................................................
09379900
51
Colorado River below Glen Canyon Dam (d) ...............................................................................
09379910
52
Colorado River at Lees Ferry (c, d, m, n, q, s, t) ...........................................................................
09380000
53
Paria River at Lees Ferry (d, s) ..................................................................................................
09382000
61
Colorado River at Compact Point, near Lees Ferry (d) .................................................................
09383000
64
Little Colorado River above Lyman Lake, near St. Johns (d) ...................................................
09384000
65
Little Colorado River below Salado Springs, near St. Johns(d) ................................................
09385700
66
San Juan River:
PARIA RIVER BASIN
LITTLE COLORADO RIVER BASIN
Carrizo Wash near St. Johns (d) ............................................................................................
09386020
67
Little Colorado River above Zion Reservoir, near St. Johns (d)................................................
09386030
68
Little Colorado River below Zion Reservoir, near St. Johns (d, s)............................................
09386100
69
Show Low Creek near Lakeside (d) ......................................................................
09390500
70
Show Low Lake near Show Low (v) .....................................................................
09391000
71
Silver Creek:
Show Low Creek below Jacques Dam, near Show Low (d)..................................
09392000
72
Little Colorado River at Woodruff (d) .......................................................................................
09394500
73
Puerco River near Chambers (d)............................................................................................
09396100
74
Little Colorado River near Joseph City (d, s) ............................................................................
09397300
75
Chevelon Creek below Wildcat Canyon (d) ..........................................................................
09397500
76
East Clear Creek (head of Clear Creek):
Blue Ridge Reservoir near Pine (v)...............................................................................
09398300
77
Little Colorado River near Winslow (d) ....................................................................................
09400350
78
Oraibi Wash near Tolani Lake (d) ................................................................................
09400562
79
Polocca Wash near Second Mesa (d).............................................................................
09400568
80
Jeddito Wash near Jeddito (d)........................................................................................
09400583
81
Dinnebito Wash near Sand Springs (d)..........................................................................
09401110
82
Moenkopi Wash at Moenkopi (d) ..................................................................................
09401260
83
Little Colorado River near Cameron (d, s) ................................................................................
09402000
84
09402450
87
Cottonwood Creek:
Cottonwood Spring abv confluence with Cottonwood Creek, nr Grand Canyon (d)....
viii
SURFACE-WATER STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS
ARE PUBLISHED IN THIS VOLUME—Continued
Station name
Station number
Page
COLORADO RIVER BASIN—Continued
Colorado River near Grand Canyon (d, q, t) .................................................................................
09402500
88
Garden Creek:
Pump House Wash Spring near Grand Canyon (d) ...............................................
09403013
93
Hermit Creek above Tonto Trail near Grand Canyon (d) ..............................................
09403043
94
09403600
95
09404110
96
KANAB CREEK BASIN
Kanab Creek near Kanab, UT (d)..............................................................................................
HAVASU CREEK BASIN
Havasu Creek at Supai (d) .........................................................................................................
Havasu Creek above the mouth, near Supai (d).........................................................................
09404115
97
Colorado River above Diamond Creek near Peach Springs (c, d, n, r, s).....................................
09404200
98
Diamond Creek near Peach Springs (d) ................................................................................
09404208
104
Spencer Creek near Peach Springs (d) ..................................................................................
09404222
105
Truxton Wash near Valentine (d) ...........................................................................................
09404343
106
Virgin River above the Narrows near Littlefield (c, d) ..............................................................
09413700
107
Virgin River at Littlefield (c, d, m, n, p)....................................................................................
09415000
109
Lake Mead at Hoover Dam, AZ-NV (v) .......................................................................................
09421000
113
Colorado River below Hoover Dam, AZ-NV (c, d, n, p, r, s)........................................................
09421500
114
Lake Mohave at Davis Dam, AZ-NV (v) ......................................................................................
09422500
119
Colorado River below Davis Dam, AZ-NV (d).............................................................................
09423000
120
Colorado River at Needles, CA (e)................................................................................................
09423500
121
09423550
122
09424150
123
09424450
124
VIRGIN RIVER BASIN
LAS VEGAS VALLEY
DIVERSIONS AND RETURN FLOWS BETWEEN DAVIS DAM AND PARKER DAM
Topock Marsh Inlet near Needles, CA (d).................................................................................
Lake Havasu:
DIVERSIONS FROM LAKE HAVASU
Colorado River aqueduct near Parker Dam, AZ-CA (d) ...........................................................
BILL WILLIAMS RIVER BASIN
Big Sandy River (head of Bill Williams River):
Big Sandy River near Wikieup (d) ............................................................................................
Santa Maria River near Bagdad (d) .......................................................................................
09424900
125
Bill Williams River below Alamo Dam (d)...............................................................................
09426000
126
Bill Williams River at Mineral Wash, near Planet (c, d, m, n) ..................................................
09426600
127
Bill Williams River near Parker (d) ...........................................................................................
09426620
128
Central Arizona Project Canal at Havasu Pumping Plant, near Parker (d)................................
09426650
129
Lake Havasu near Parker Dam, AZ-CA (e, v)...............................................................................
09427500
130
Colorado River below Parker Dam, AZ-CA (c, d, m, n) ...............................................................
09427520
132
Colorado River Indian Reservation Main Canal near Parker (d)...............................................
09428500
136
Palo Verde Canal near Blythe, CA (d).......................................................................................
09429000
137
DIVERSIONS AND RETURN FLOWS BETWEEN PARKER DAM AND
PALO VERDE DAM
ix
SURFACE-WATER STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS
ARE PUBLISHED IN THIS VOLUME—Continued
Station name
Station number
Page
COLORADO RIVER BASIN—Continued
Colorado River below Palo Verde Dam, AZ-CA (d).....................................................................
09429100
138
Colorado River above Imperial Dam, AZ-CA (d).........................................................................
09429490
139
Colorado River below Imperial Dam, AZ-CA (d).........................................................................
09429500
142
Colorado River below Laguna Dam, AZ-CA (d) ..........................................................................
09429600
143
Gila River below Blue Creek, near Virden, NM (c, d, m, n, s) .................................................
09432000
144
Gila River near Clifton (d).........................................................................................................
09442000
145
Blue River near Clifton (d) ............................................................................................
09444200
146
San Francisco River at Clifton (d) .........................................................................................
09444500
147
09445000
148
Eagle Creek above pumping plant, near Morenci (d)............................................................
09447000
149
Bonita Creek near Morenci (d)..............................................................................................
09447800
150
Gila River at head of Safford Valley, near Solomon (c, d, m, n, s) ...........................................
09448500
151
Frye Creek near Thatcher (d) ....................................................................................................
09460150
155
Gila River at Calva (c, d, m, n, s) ..............................................................................................
09466500
156
San Carlos River near Peridot (d)..........................................................................................
09468500
159
San Carlos Reservoir at Coolidge Dam (v) ...............................................................................
09469000
160
Gila River below Coolidge Dam (d)..........................................................................................
09469500
161
GILA RIVER BASIN
Eagle Creek:
Willow Creek:
Willow Creek diversion from Black River, near Morenci (d) ...............................
San Pedro River at Palominas (d) ..........................................................................................
09470500
162
Greenbush Draw near Palominas (d).............................................................................
09470520
163
Banning Creek near Bisbee (d)......................................................................................
09470700
164
Ramsey Canyon near Sierra Vista (d)............................................................................
09470750
165
Garden Canyon near Fort Huachuca (d)........................................................................
09470800
166
San Pedro River at Charleston (c, d, p, s)..............................................................................
09471000
167
Huachuca Canyon near Fort Huachuca (d)....................................................................
09471310
168
Upper Babocomari River near Huachuca City (d) ........................................................
09471380
169
Babocamari River near Tombstone (d)..........................................................................
09471400
170
San Pedro River near Tombstone (d).....................................................................................
09471550
171
San Pedro River at Redington Bridge near Redington (d) ....................................................
09472050
172
Aravaipa Creek near Mammoth (d)...............................................................................
09473000
173
Gila River at Kelvin (d, c, m, n, s).............................................................................................
09474000
174
Florence-Casa Grande Canal near Florence (d) ....................................................................
09475500
179
Queen Creek below Whitlow Dam near Superior (d) ...........................................................
09478500
180
Gila River at Maricopa (d).........................................................................................................
09479350
181
Santa Cruz River near Lochiel (d) .........................................................................................
09480000
182
Santa Cruz River near Nogales (d) ........................................................................................
09480500
183
Santa Cruz River at Continental (d) ......................................................................................
09482000
184
Santa Cruz River at Tucson (d)..............................................................................................
09482500
185
09484000
186
Tanque Verde Creek (head of Rillito Creek):
Sabino Creek near Tucson (d) ...............................................................................
x
SURFACE-WATER STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS
ARE PUBLISHED IN THIS VOLUME—Continued
Station name
Station number
Page
COLORADO RIVER BASIN—Continued
GILA RIVER BASIN—Continued
Tanque Verde Creek at Tucson (d) ................................................................................
09484500
187
Cienega Creek near Sonoita (d).....................................................................
09484550
188
Pantano Wash near Vail (d) ...................................................................................
09484600
189
Rincon Creek near Tucson (d).......................................................................
09485000
190
Pantano Wash at Broadway Boulevard, at Tucson (d)...........................................
09485450
191
Rillito Creek at Dodge Boulevard, at Tucson (d) .................................................................
09485700
192
Rillito Creek at La Cholla Boulevard, near Tucson (d) .........................................................
09486055
193
Cañada del Oro below Ina Road, near Tucson (d).................................................................
09486350
194
Santa Cruz River at Cortaro (d) .............................................................................................
09486500
195
Santa Cruz River at Trico Road, near Marana (d) .................................................................
09486520
196
Arivaca Creek at Arivaca (d) .................................................................................
09486580
197
Arivaca Creek near Arivaca (d) .............................................................................
09486590
198
Altar Wash near Three Points (d) ..................................................................................
09486800
199
Brawley Wash near Three Points (d) .............................................................................
09487000
200
Santa Cruz River near Laveen (d)..........................................................................................
09489000
201
Black River below pumping plant, near Point of Pines (d) ...................................................
09489500
202
Black River near Fort Apache (d)..........................................................................................
09490500
203
East Fork White River near Fort Apache (d).........................................................
09492400
204
White River near Fort Apache (d) .................................................................................
09494000
205
Black River (head of Salt River):
North Fork White River (head of White River):
Salt River:
Carrizo Creek:
Corduroy Creek:
Forestdale Creek:
09495000
206
Carrizo Creek near Show Low (d).................................................................................
Forestdale Creek diversion from Show Low Creek, near Show Low (d)
09496500
207
Salt River near Chrysotile (d) ................................................................................................
09497500
208
Cibecue Creek near Chrysotile (d) ................................................................................
09497800
209
Cherry Creek near Globe (d) .........................................................................................
09497980
210
Pinal Creek at Inspiration Dam, near Globe (c, d, m, n, s)............................................
09498400
211
Salt River near Roosevelt (c, d, m, n, s) ................................................................................
09498500
215
Pinto Creek below Haunted Canyon near Miami (d) ....................................................
09498501
218
Pinto Creek near Miami (d)...........................................................................................
09498502
219
South Fork Parker Creek near Roosevelt (d) .................................................................
09498503
220
Tonto Creek above Gun Creek, near Roosevelt (d) .......................................................
09499000
221
Reservoir system on Salt River at and below Roosevelt Dam (v) .........................................
09501000
222
Salt River below Stewart Mountain Dam (c, d, m, n, s) ........................................................
09502000
223
Williamson Valley Wash near Paulden (d) ....................................................................................
09502800
226
Del Rio Springs near Chino Valley (d)..................................................................
09502900
227
Granite Creek at Prescott (c, d, m, p, s).................................................................
09502960
228
Granite Creek near Prescott (d) .............................................................................
09503000
229
xi
SURFACE-WATER STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS
ARE PUBLISHED IN THIS VOLUME—Continued
Station name
Station number
Page
COLORADO RIVER BASIN—Continued
GILA RIVER BASIN—Continued
Granite Creek below Watson Lake near Prescott (d).............................................
09503300
230
Verde River near Paulden (d).........................................................................................
09503700
231
Verde River near Clarkdale (c, d, m, n, s) .....................................................................
09504000
232
Oak Creek near Sedona (d)....................................................................................
09504420
236
Oak Creek near Cornville (d) ................................................................................
09504500
237
Wet Beaver Creek (head of Beaver Creek) near Rimrock (d) ...............................
09505200
238
Dry Beaver Creek near Rimrock (d)..............................................................
09505350
239
West Clear Creek near Camp Verde (c, d, p, s) .....................................................
09505800
240
Verde River near Camp Verde (d)..................................................................................
09506000
241
09507500
242
East Verde River diversion from East Clear Creek, near Pine (d).................
09507580
243
East Verde River near Childs (c, d, m, n, s)...........................................................
09507980
244
Wet Bottom Creek near Childs (d) ........................................................................
09508300
248
Fossil Creek:
Fossil Creek diversions to Childs powerplant, near Camp Verde (d)............
East Verde River:
Verde River below Tangle Creek, above Horseshoe Dam (c, d, m, n, s).......................
09508500
249
Reservoir system on Verde River at and below Horseshoe Dam (v).............................
09509500
253
Verde River below Bartlett Dam (c, d, m, n, s) ............................................................
09510000
254
Sycamore Creek near Fort McDowell (d) .............................................................
09510200
258
Verde River near Scottsdale (d) .....................................................................................
09511300
259
Indian Bend Wash at Curry Road, Tempe (d) ...............................................................
09512162
260
Salt River at Priest Drive near Phoenix (d) ...................................................................
09512165
261
Agua Fria River:
Cave Creek below Cottonwood Creek, near Cave Creek (d) ........................................
09512280
262
Agua Fria River near Humboldt (d).......................................................................................
09512450
263
Agua Fria River near Mayer (d) ............................................................................................
09512500
264
Agua Fria River near Rock Springs (d) .................................................................................
09512800
265
New River near Rock Springs (d)..................................................................................
09513780
266
Skunk Creek near Phoenix (d)...............................................................................
09513860
267
Gila River at Estrella Parkway, near Goodyear (d) ...............................................................
09514100
268
Hassayampa River near Morristown (d)........................................................................
09516500
269
Hassayampa River near Arlington (d) ...........................................................................
09517000
270
Centennial Wash at Southern Pacific Railroad bridge, near Arlington (d)....................
09517490
271
Gila River above diversions, at Gillespie Dam (c, d, m, n, s)....................................................
09518000
272
Gila River below Painted Rock Dam (d) ...................................................................................
09519800
275
Gila River near Dateland (d)......................................................................................................
09520280
276
Gila River near Dome (d) ..........................................................................................................
09520500
277
Colorado River below Yuma Main Canal Wasteway, at Yuma (d)................................................
09521100
278
Colorado River at northerly international boundary, above Morelos Dam, near
Andrade, CA (c, d, m, n, p, r, s)
09522000
280
xii
SURFACE-WATER STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS
ARE PUBLISHED IN THIS VOLUME—Continued
Station name
Station number
Page
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DAM
Diversions at and below Imperial Dam, AZ-CA (d) .................................................................
Gila Gravity Main Canal at Imperial Dam, AZ-CA (d) ............................................................
290
09522500
293
All-American Canal near Imperial Dam, AZ-CA (d) ...............................................................
09523000
294
Yuma Main Canal at siphon-drop powerplant, near Yuma (d) ..............................................
09524000
295
Yuma Main Canal wasteway at Yuma (d)..............................................................................
09525000
296
Yuma Main Canal below Colorado River siphon, at Yuma (d) .............................................
09525500
297
Return surface flows below Imperial Dam, AZ-CA (d) ............................................................
298
Pilot Knob powerplant and wasteway near Pilot Knob, CA (d)............................................
09527000
302
All-American Canal below Pilot Knob wasteway, CA (d)........................................................
09527500
303
San Simon Wash near Pisinimo (d) ...........................................................................................
09535100
304
Vamori Wash at Kom Vo (d)..................................................................................................
09535300
305
09537200
306
RIO SONOYTA BASIN
SAN SIMON WASH BASIN
SULPHUR SPRING VALLEY
WHITEWATER DRAW BASIN
Leslie Creek near McNeal (d) ...............................................................................................
Discharge at partial-record stations and miscellaneous sites.........................................................
308
Maximum discharge at crest-stage partial-record stations ........................................................
308
Discharge measurements at miscellaneous sites .......................................................................
312
xiii
DISCONTINUED SURFACE-WATER DISCHARGE OR STAGE-ONLY STATIONS
The following continuous-record streamflow stations in Arizona have been discontinued or converted to partial-record stations. Daily streamflow
records were collected and published for the period of record shown for each station.
Station name
Lee Valley Creek above Lee Valley Reservoir, near Greer, AZ ............
Drainage area,
Station number in square miles
09383200
a1.3
Period of record
(water years)
1966–72
Lee Valley tributary near Greer, AZ......................................................
09383220
a.5
1966–72
Lee Valley Creek below Lee Valley Reservoir, near Greer, AZ............
09383250
a1.9
1966–72
Filler ditch at Greer, AZ ........................................................................
09383300
---
1960–77
Little Colorado River at Greer, AZ .......................................................
09383400
29.1
1960–82
Nutrioso Creek above Nelson Reservoir, near Springerville, AZ .........
09383500
83.3
1967–82
Nutrioso Creek below Nelson Reservoir, near Springerville, AZ.........
09383550
86.7
1967–82
Lyman Reservoir near St. Johns, AZ.....................................................
09384500
b811
1940–78
Lyman Canal below Lyman Reservoir, near St. Johns, AZ...................
09385000
---
1950–80
Little Colorado River below Lyman Reservoir, near St. Johns, AZ......
09385500
b811
1941–80
Little Colorado River at St. Johns, AZ ..................................................
09386000
b964
1906–7,
1909,
1929–33,
1935–40
Little Colorado River above Zuni River, near Hunt, AZ.......................
09386500
b3,741
1940–72
Colorado River above Little Colorado River near Desert View, AZ.....
09383100
114,272
1983,
1985–86,
1989–2001
Little Colorado River near Hunt, AZ ....................................................
09388000
b6,383
1929–33,
1940–72
Silver Creek near Shumway, AZ...........................................................
09390000
b172
1942–55
Show Low Creek at Show Low, AZ......................................................
09392500
Silver Creek at Snowflake, AZ..............................................................
09393000
b488
1906
Cottonwood Wash at Snowflake, AZ ....................................................
09393400
262
1981–84
90.2
1944–55
Silver Creek near Snowflake, AZ..........................................................
09393500
925
1950–95
Silver Creek near Woodruff, AZ ...........................................................
09394000
b966
1929–33,
1935–52
Puerco River near Church Rock, NM ...................................................
09395350
205
1977–82,
1989–91
Puerco River near Lupton, AZ ..............................................................
09395650
a1,050
1971–72
Black Creek near Lupton, AZ ...............................................................
09395900
494
1964–72,
1974–82
Black Creek below West Fork Black Cleek, near Houck, AZ ..............
09395990
628
1989–91
Puerco River near Adamana, AZ ..........................................................
09396500
b2,654
1940–49
Little Colorado River at Holbrook, AZ .................................................
09397000
b11,462
1905–7,
1949–73
Chevelon Creek near Winslow, AZ .......................................................
09398000
b785
1905–6,
1915–19,
1929–72
Clear Creek below Willow Creek, near Winslow, AZ...........................
09398500
317
1947–91
Clear Creek near Winslow, AZ..............................................................
09399000
621
1906,
1929–82
Jacks Canyon Creek near Winslow, AZ ................................................
09399400
295
1969–72
See footnotes at end of table.
xiv
DISCONTINUED SURFACE-WATER DISCHARGE OR STAGE-ONLY STATIONS—Continued
Station name
Drainage area,
Station number in square miles
Salt Creek near Winslow, AZ................................................................
Little Colorado River near Winslow, AZ ..............................................
Rio de Flag at Flagstaff, AZ..................................................................
Little Colorado River at Grand Falls, AZ..............................................
09399500
09400000
09400600
09401000
Coal Mine Wash tributary near Kayenta, AZ........................................
Coal Mine Wash tributary No. 2 near Kayenta, AZ..............................
Coal Mine Wash at mouth, near Shonto, AZ ........................................
Moenkopi Wash near Moenkopi, AZ ....................................................
Moenkopi Wash near Tuba City, AZ.....................................................
Moenkopi Wash near Tuba City, AZ.....................................................
09401226
09401229
09401239
09401250
09401280
09401400
.62
.06
137
a1,650
1,904
2,492
Moenkopi Wash near Cameron, AZ......................................................
Little Colorado above mouth near Desert View, AZ.............................
Bright Angel Creek near Grand Canyon, AZ........................................
Pipe Springs above Tonto Trail near Grand Canyon, AZ......................
Sediment Tank at Indian Garden near Grand Canyon, AZ ...................
Garden Creek below Indian Garden near Grand Canyon, AZ ..............
Kanab Creek near Fredonia, AZ ...........................................................
Kanab Creek above mouth near Supai, AZ...........................................
Dogtown Wash above Dogtown Reservoir near Williams, AZ.............
Dogtown Wash above Kaibab Reservoir, near Williams, AZ ...............
Cataract Creek near Williams, AZ ........................................................
Havasu Creek above Havasu Falls near Supai, AZ ...............................
Havasu Creek above mouth near Supai, AZ .........................................
Colorado River above National Canyon near Supai, AZ ......................
Beaver Dam Wash at Beaver Dam, AZ.................................................
Colorado River near Topock, AZ ..........................................................
Cottonwood Wash No. 1 near Kingman, AZ ........................................
Francis Creek near Bagdad, AZ ............................................................
Burro Creek at old U.S. 93 bridge near Bagdad, AZ ............................
Kirkland Creek near Kirkland, AZ........................................................
Date Creek near Congress, AZ..............................................................
Santa Maria River near Alamo, AZ ......................................................
Bill Williams River at Planet, AZ .........................................................
09401500
09402300
09403000
09403010
09403012
09403015
09403780
09403850
09403990
09404020
09404040
09404112
09404115
09404120
09414900
09424000
09424200
09424432
09424447
09424470
09425000
09425500
09426500
2,662
--101
1.70
----1,085
--4.69
15.4
46.4
2,898
--147,931
579
ab176,300
143
134
b611
109
127
1,439
5,054
Tyson Wash at Quartzsite, AZ...............................................................
Colorado River at Palo Verde Dam, AZ–CA ........................................
Cibola Lake inlet near Cibola, AZ ........................................................
Cibola Lake outlet near Cibola, AZ ......................................................
Colorado River below Cibola Valley, AZ..............................................
Gila River at New Mexico–Arizona State Line, near Virden, NM .......
Blue River near Clifton, AZ ..................................................................
Willow Creek near Point of Pines, near Morenci, AZ .........................
Willow Creek near Double Circle Ranch, near Morenci, AZ ...............
Eagle Creek near Double Circle Ranch, near Morenci, AZ..................
Brown Canal St. Head of Safford Valley, near Solomon, AZ ...............
Gila River near Solomon, AZ ...............................................................
09428900
09429010
09429280
09429290
09429300
09438000
09444200
09445500
09446000
09446500
09449500
09451000
421
ab186,200
----ab187,800
3,349
506
102
149
377
--7,896
See footnotes at end of table.
287
a16,100
51.0
b21,068
Period of record
(water years)
1939–41
1954–56
1955–60
1925–60,
1989–94
1977–81
1977–79
1978–82
1973–76
1926–41
1941–53,
1965–78
1953–65
1990–93
1923–74
1994–96
1994–06
1994–96
1963–80
1990–93
1964–66
1964–66
1965–72
1995–2000
1990–97
1983–96
1993–98
1917–82
1964–78
1985–93
1980–93
1973–83
1939–43
1939–66
1913–15,
1928–46
1973–74
1969–88
1975–89
1975–89
1956–88
1939–49
1967–91
1944–67
1944–67
1944–67
1920–32
1914–32
1940–50
xv
DISCONTINUED SURFACE-WATER DISCHARGE OR STAGE-ONLY STATIONS—Continued
Station name
Drainage area,
Station number in square miles
Cave Creek near Paradise, AZ ..............................................................
Cave Creek Canal near Paradise, AZ ....................................................
East Turkey Creek at Paradise, AZ .......................................................
San Simon River near San Simon, AZ ..................................................
09454500
09455000
09455500
09456000
a39
--a8.2
814
San Simon River below fandrop detention dam, near Bowie, AZ ........
Gold Gulch below Creighton detention dam, near Bowie, AZ .............
Gold Gulch below H–X detention dam, near Bowie, AZ .....................
San Simon River at Tanque, AZ............................................................
Goat Well Wash below drop structure, near Solomon, AZ ...................
San Simon River near Solomon, AZ .....................................................
09456200
09456600
09456700
09456800
09456900
09457000
1,400
104
144
1,953
77.2
2,192
Marijilda Wash near Safford, AZ ..........................................................
Deadman Creek near Safford, AZ.........................................................
Gila River at Safford, AZ ......................................................................
09458050
09458200
09458500
10.9
4.78
10,459
Frye Creek at Thatcher, AZ...................................................................
Gila River at Black Point, near Geronimo, AZ .....................................
Gila River near Bylas, AZ.....................................................................
Gila River near Calva, AZ.....................................................................
Gila River at Winkelman, AZ ...............................................................
09460200
09466000
09466300
09467100
09470000
24.3
11,329
11,380
11,550
13,268
Huachuca Canyon near Fort Huachuca, AZ..........................................
San Pedro River at Fairbank, AZ ..........................................................
St. David ditch near St. David, AZ .......................................................
Pomerene Canal near St. David, AZ .....................................................
San Pedro River near Benson, AZ ........................................................
San Pedro River near Redington, AZ....................................................
09471300
09471500
09471560
09471590
09471800
09472000
3.24
1,672
----2,490
2,927
Peck Canyon tributary near Redington, AZ ..........................................
San Pedro River near Mammoth, AZ....................................................
Aravaipa Creek near Feldman, AZ........................................................
San Pedro River below Aravaipa Creek, near Mammoth, AZ ..............
San Pedro River near Winkelman, AZ ..................................................
San Pedro River at Winkelman, AZ ......................................................
Gila River at the Buttes, AZ..................................................................
Gila River near Sacaton, AZ .................................................................
Queen Creek at Whitlow Dam site (Whitlow's Ranch),
near Superior, AZ..............................................................................
Queen Creek near Florence Junction, AZ .............................................
Queen Creek tributary at Apache Junction, AZ ....................................
Gila River near Laveen, AZ ..................................................................
Nogales Wash at Nogales, AZ...............................................................
Sonoita Creek near Patagonia, AZ ........................................................
09472100
09472500
09473020
09473100
09473400
09473500
09474500
09478350
8.02
3,583
557
4,343
4,430
4,453
a18,300
---
09478500
09479000
09479200
09479500
09481000
09481500
144
192
.51
20,615
a37
209
Airport Wash at Tucson, AZ .................................................................
09482400
See footnotes at end of table.
23.0
Period of record
(water years)
1919–25
1919–25
1919–25
1919–25,
1931–33,
1935–41
1955–59
1956–59
1956–59
1957–59
1956–59
1931–32,
1935–82
1971–78
1989–93
1940–49,
1956–65
1963–74
1943–45
1965–70
1965–70
1917–18,
1941–80,
1984–94
1961–64
1926–28
1967–72
1967–72
1966–76
1943–47,
1950–98
1967–72
1931–41
1919–21
1979–83
1962–65
1966–78
1898–99
1995–98
1948–59
1939–41
1961–68
1940–95
1932–34
1930–33,
1935–72
1965–81
xvi
DISCONTINUED SURFACE-WATER DISCHARGE OR STAGE-ONLY STATIONS—Continued
Station name
Drainage area,
Station number in square miles
Period of record
(water years)
Railroad Wash at Tucson, AZ ...............................................................
Tucson Arroyo at Vine Avenue, Tucson, AZ ........................................
High School Wash at Tucson, AZ .........................................................
Tanque Verde Creek near Tucson, AZ ..................................................
Sabino Creek near Mount Lemmon, AZ...............................................
Bear Creek near Tucson, AZ.................................................................
Cienega Creek near Pantano, AZ ..........................................................
Davidson Canyon Wash near Vail, AZ..................................................
Atterbury Wast tributary at Tucson, AZ................................................
Pantano Wash at (near) Tucson, AZ......................................................
Arcadia Wash at Tucson, AZ ................................................................
Rillito Creek near Tucson, AZ ..............................................................
Cañada del Oro near Oracle Junction, AZ ............................................
Cañada del Oro near Tucson, AZ..........................................................
Santa Cruz River at Ina Road, near Tucson, AZ ...................................
Santa Cruz River near Rillito, AZ .........................................................
Arivaca Wash near Arivaca, AZ............................................................
Santa Rosa Wash at Gu Komelik, near Sells, AZ .................................
Kohatk Wash near Chiapuk, near Sells, AZ ..........................................
Santa Rosa Wash near Vaiva Vo, near Sells, AZ ...................................
Vekol Wash near Stanfield, AZ .............................................................
North Fork of East Fork Black River near Alpine, AZ .........................
Forest Service Gage, East For Weir, AZ ...............................................
North Fork Thomas Creek near Alpine, AZ .........................................
Black River near Maverick, AZ ............................................................
Wacheta Creek at Maverick, AZ ...........................................................
Big Bonito Creek near Fort Apache, AZ ..............................................
Turkey Creek near Fort Apache, AZ .....................................................
North Fork White River near Greer, AZ ...............................................
North Fork White River near McNary, AZ ...........................................
09482950
09483000
09483010
09483100
09483300
09484200
09484560
09484590
09485390
09485500
09485550
09485850
09486100
09486300
09486490
09486510
09486600
09487500
09488000
09488500
09488650
09489070
09489075
09489082
09489100
09489200
09489700
09490000
09490800
09491000
2.3
8.2
.95
43.0
3.19
16.3
289
50.5
4.97
602
2.72
892
42.3
250
3,489
3,559
78.4
629
185
1,782
150
38.1
--0.73
315
14.8
119
12.7
a39
a66
North Fork White River at Whiteriver, AZ ...........................................
Rock Creek near Fort Apache, AZ........................................................
East Fork White River at Fort Apache, AZ...........................................
White River at Fort Apache, AZ ...........................................................
09492000
09492500
09493000
09493500
357
20.3
135
499
White River near Fort Apache, AZ .......................................................
Carrizo Creek above Corduroy Creek,
near Show Low, AZ..........................................................................
Corduroy Creek above Forestdale Creek, near Show Low, AZ ............
Forestdale Creek near Show Low, AZ ..................................................
Corduroy Creek near Mouth, near Show Low, AZ ...............................
Cibecue No. 1 tributary to Carrizo Creek, near Show Low, AZ ...........
Cibecue No. 2 tributary to Carrizo Creek, near Show Low, AZ ...........
Canyon Creek near Globe, AZ..............................................................
Cherry Creek near Young, AZ ..............................................................
Tonto Creek near Gisela, AZ.................................................................
Rye Creek near Gisela, AZ ...................................................................
09494000
632
1975–83
1944–81
1973–83
1959–74
1951–59
1959–74
1968–75
1968–75
1975–83
1940–41
1975–83
1913–75
1985–91
1965–78
1991–93
1991
1967–72
1954–59
1954–59
1954–80
1991-99
1965–78
1973–80
1986–91
1962–82
1957–80
1957–81
1955–60
1965–78
1945–54,
1957–85
1916–22
1955–60
1912–20
1912–19,
1921–22
1917–98
09494300
09494500
09495500
09496000
09496600
09496700
09497850
09497900
09498800
09498870
225
57.0
33.4
203
.099
.065
316
62.1
430
122
1953–67
1952–61
1952–61
1951–75
1958–71
1958–71
1975–81
1963–77
1964–75
1965–85
See footnotes at end of table.
xvii
DISCONTINUED SURFACE-WATER DISCHARGE OR STAGE-ONLY STATIONS—Continued
Station name
Drainage area,
Station number in square miles
Tonto Creek near Roosevelt, AZ...........................................................
Salt River at Roosevelt (at reservoir site) (nr Livingstone), AZ ...........
Salt River at McDowell, AZ..................................................................
Williamson Valley Wash near Paulden, AZ ..........................................
Willow Creek near Prescott, AZ ...........................................................
Hell Canyon near Williams, AZ............................................................
Volunteer Wash near Bellemont, AZ.....................................................
Oak Creek at Sedona, AZ......................................................................
Verde River at Camp Verde, AZ............................................................
Rocky Gulch near Rimrock, AZ ...........................................................
Red Tank Draw near Rimrock, AZ .......................................................
Montezuma Well Outlet near Rimrock, AZ ..........................................
Rattlesnake Canyon near Rimrock, AZ.................................................
Beaver Creek at Camp Verde, AZ .........................................................
Verde River below Camp Verde, AZ.....................................................
Verde River at Childs, near Camp Verde, AZ .......................................
East Verde River near Pine, AZ ............................................................
Webber Creek above West Fork Webber Creek, near Pine, AZ............
West Fork Webber Creek near Pine, AZ ...............................................
Webber Creek below West Fork Webber Creek, near Pine, AZ............
East Verde River near Payson, AZ ........................................................
Verde River below East Verde River, near Pine, AZ .............................
Verde River above Bartlett Reservoir, near Cave Creek, AZ ................
West Fork Sycamore Creek above
McFarland Canyon, near Sunflower, AZ ..........................................
West Fork Sycamore (Adler) Creek near Sunflower, AZ .....................
East Fork Sycamore Creek near Sunflower, AZ ...................................
Sycamore Creek near Sunflower, AZ....................................................
Camp Creek near Sunflower, AZ ..........................................................
Rock Creek near Sunflower, AZ ...........................................................
Salt River at Alma School Road, near Mesa, AZ..................................
09499500
09500500
09502500
09502800
09503500
09503720
09503800
09504430
09505000
09505220
09505250
09505260
09505300
09505500
09505550
09506500
09507600
09507700
09507800
09507900
09507950
09508000
09509000
09510070
838
5,824
6,268
255
25.2
14.9
b130
233
b4,215
1.4
49.4
--24.6
433
b4,653
b5,098
6.34
4.79
4.07
9.63
272
b5,606
b6,036
4.62
09510080
09510100
09510150
09510170
09510180
09512060
9.82
4.52
52.3
2.6
15.2
12,995
Indian Bend Wash near Scottsdale, AZ.................................................
Salt River at Jointhead Dam, near Phoenix, AZ ...................................
Salt River tributary No. 2 at Phoenix, AZ.............................................
Salt River at 24th Street at Phoenix, AZ ...............................................
Salt River tributary in South Mountain Park, Phoenix, AZ ..................
Cave Creek near Cave Creek, AZ .........................................................
Cave Creek at Phoenix, AZ...................................................................
Perry Canal near Mayer, AZ .................................................................
Sycamore Dam site total .......................................................................
Turkey Creek near Cleator, AZ .............................................................
Boulder Creek near Rock Springs, AZ .................................................
Humbug Creek near Castle Hot Springs, AZ........................................
Cottonwood Creek near Waddell Dam, AZ ..........................................
Agua Fria River at Waddell Dam, AZ...................................................
09512100
09512170
09512180
09512190
09512200
09512300
09512400
09512495
09512501
09512600
09512830
09512860
09512970
09513000
62
13,225
a.035
13,391
1.75
121
252
588
588
89.4
37.8
59.9
9.28
1,433
Lake Pleasant at Waddell Dam, AZ ......................................................
09513500
See footnotes at end of table.
1,433
Period of record
(water years)
1913–40
1904–7
1904–9
1965–85
1932–37
1965–72
1965–72
1981–95
1913–20
1985–92
1957–78
1977–92
1957–80
1912–20
1971–78
1913
1961–71
1959–74
1959–65
1959–65
1961–65
1934–41
1938–45
1965–74,
1982–86
1961–74
1961–86
1961–76
1963–66
1963–72
1981–86,
1992–93
1961–84
1977–80
1963–65
1989–92
1960–98
1958–67
1958–90
1940–59
1940–81
1979–92
1983–93
1983-94
1983–93
1911–24,
1933–91
1928–91
xviii
DISCONTINUED SURFACE-WATER DISCHARGE OR STAGE-ONLY STATIONS—Continued
Station name
Drainage area,
Station number in square miles
Agua Fria at El Mirage, AZ ..................................................................
Agua Fria River tributary at Youngtown, AZ........................................
New River at New River (near Black Canyon), AZ..............................
New River at Bell Road, near Peoria, AZ .............................................
09513650
09513700
09513800
09513835
1628
New River near Glendale, AZ...............................................................
Agua Fria River at Avondale, AZ..........................................................
Buckeye Canal near Avondale, AZ .......................................................
09513910
09513970
09514000
323
2,066
---
Gila River at U.S. Highway 85, near Buckeye, AZ ..............................
Hassayampa River near Wagoner, AZ ..................................................
Hassayampa River at Walnut Grove, near Wagoner, AZ ......................
09514300
09514500
09515000
46,345
77.9
106
Hassayampa River at Box damsite, near Wickenburg, AZ ...................
Centennial Wash near Arlington, AZ....................................................
Sauceda Wash near Gila Bend, AZ .......................................................
Gila River near Sentinel, AZ.................................................................
Rio Cornez near Ajo, AZ ......................................................................
Gila River near Mohawk, AZ................................................................
Gila River at mouth, near Yuma, AZ ....................................................
Gila River at mouth (flow past gage only) ............................................
Colorado River at Yuma, AZ.................................................................
Colorado River and Pilot Knob wasteway (Colorado River) at
Rockwood Gate, CA .........................................................................
Colorado River at southerly international boundary, near San Luis, AZ
Mittry Lake Outlet Channel near Yuma, AZ.........................................
09515500
09517500
09519760
09520000
09520170
09520360
09520700
09520701
09521000
09521500
417
1,870
126
51,610
243
55,430
57,950
--ab246,500
ab246,600
09522200
09527900
ab246,700
---
Yuma Canal at Laguna Dam, AZ–CA...................................................
Laguna Canal Wasteway, AZ ................................................................
North Gila Drain No. 3 near Yuma, AZ ................................................
Fortuna Wasteway near Yuma, AZ........................................................
Bruce Church Drain, AZ .......................................................................
Wellton-Mohawk Main Outlet Drain above Gila River, AZ .................
South Gila Drain No. 2 near Yuma, AZ ................................................
Vamori Wash at International Boundary near Sells, AZ .......................
Quitobaquito Spring near Lukeville ......................................................
09528000
09528600
09529050
09529100
09529200
09529350
09529400
09535295
09535900
--------------250
---
West Turkey Creek near Light, AZ .......................................................
Whitewater Draw near Rucker, AZ.......................................................
Whitewater Draw (White, White Water River) near Douglas, AZ .......
09536500
09537000
09537500
a19
38.7
1,023
a
Approximately.
b Includes area that
is probably noncontributing.
.13
84.6
185
Period of record
(water years)
1962–98
1961–68
1960–82
1968–84
1990–93
1964–98
1967–82
1953–71,
1996–2000
1979, 1989–92
1940–46
1912–15,
1917–18,
1980–83
1938, 1946–82
1961–79
1989–94
1913–14
1967–78
1966, 1973–93
1975–83
1975–83
1902–64
1945–50
1960–85
1975–83
1985–89
1910–48
1960–97
1962–89
1961–89
1962–97
1966–74
1961–89
1995-2000
1982–89
1991–92
1919–25
1919–25
1912–13,
1918–19,
1930–33,
1935–82
xix
DISCONTINUED SURFACE-WATER QUALITY STATIONS
The following surface-water-quality stations in Arizon ahave been discontinued or converted to partial-record stations. Water-quality data (daily or
periodic samples with collection frequency not less than quarterly) were collected and published for the period of record shown for each station.
Discontinued project stations with less than 3 years of record are not included. Information regarding these stations may be obtained from the
district Chief at the address given on the back of the title page of this report.
[Type of record: (C) chemical, (S) sediment, (T) temperature]
Station name
Drainage area ,
Station number in square miles
Period of
record
C,S,T
1942,
1947–76,
1978–79
C,S,T
1972–73,
1976–79,
1981–84,
1987–88
Paria River at Lees Ferry, AZ ........................................................
09382000
Little Colorado River at Greer, AZ................................................
09383400
Little Colorado River abv Lyman Lake, near St. Johns, AZ .........
09384000
a706
C,S,T
1976–83
Little Colorado River abv Zion Reservoir, near St. Johns, AZ .....
09386030
1,007
C,T
1975–94
Zuni River above Black Rock Reservoir, NM...............................
09386950
848
C
1978–92,
1993
Show Low Creek near Lakeside, AZ.............................................
09390500
C,S,T
1976–79
Cottonwood Creek at Snowflake, AZ............................................
09393400
262
C,S,T
1982–84
Little Colorado River at Woodruff, AZ .........................................
09394500
a8,072
C,S,T
1905–06,
1950–57
Puerco River near Church Rock, NM............................................
09395350
205
C,S,T
1979,
1988–91
Little Colorado River near Joseph City, AZ ..................................
09397300
12,384
C,S,T
1979–94
Little Colorado River at Grand Falls, AZ......................................
09401000
a21,068
C,S,T
1991–94
Little Colorado River at Cameron, AZ..........................................
09401200
a23,119
C,S,T
1948–70,
1975–86,
1995
Moenkopi Wash near Moenkopi, AZ ............................................
09401250
---
C,T
1973–76
Moenkopi Wash at Moenkopi, AZ ................................................
09401260
1,629
C,S,T
1974–81
Little Colorado River near Cameron, AZ......................................
09402000
26,459
C,S
1970–72;
1990–91
Colorado River near Grand Canyon, AZ.......................................
09402500
ab141,600
C,S,T
1925–88
Bright Angel Creek near Grand Canyon, AZ................................
09403000
101
C,T
1944–49,
1952–58,
1962–74
Kanab Creek near Fredonia, AZ....................................................
09403780
1,085
C,S,T
1964–73
Havasu Creek above the mouth, near Supai, AZ...........................
09404115
3,020
C,T
1990–97
Las Vegas Wash near Henderson, NV ...........................................
09419700
a2,125
C,T
1957–92
See footnotes at end of table.
1,410
Type of
record
29.1
68.6
xx
DISCONTINUED SURFACE-WATER QUALITY STATIONS—Continued
Station name
Drainage area ,
Station number in square miles
Type of
record
Period of
record
Las Vegas Wash above Three Kids Wash below
Henderson, NV..........................................................................
09419753
b2,180
C,T
1988–92
Lake Mead at Hoover Dam, AZ ....................................................
09421000
ab171,700
C,T
1941–62,
1964–85
Colorado River below Davis Dam, AZ .........................................
09423000
ab173,300
C,T
1969–87
Topock Marsh Outlet near Needles, CA........................................
09423640
---
C,T
1980–81,
1983
Topock Marsh Outlet near Topock, AZ.........................................
09423650
---
C,T
1975–77
Colorado River near Topock, AZ ..................................................
09424000
ab176,300
C,T
1925–27,
1952–62,
1969–82
Central Arizona Project Canal at MP 7.98 near Parker.................
09426700
---
C,M,P
1985–95
Central Arizona Project Canal at MP 162.3 at Phoenix ................
09427100
---
C,M,P,S
1985–95
Central Arizona Project Canal at MP 252 near Coolidge .............
09427300
---
C,M,P
1987–95
Colorado River Indian Reservation Main Canal
near Parker, AZ..........................................................................
09428500
---
C,T
1970–83
Colorado River Indian Reservation Poston Canal Wasteway
near Parker, AZ..........................................................................
09428510
---
C,T
1969–83
Palo Verde Canal near Blythe, CA ................................................
09429000
---
C,T
1970–85
Palo Verde Drain near Parker, AZ .................................................
09429030
---
C,T
*1962–68,
1969–83
Colorado River Indian Reservation Lower Main Drain
near Parker, AZ..........................................................................
09429060
---
C,T
*1962–68,
1969–83
Colorado River below Palo Verde Dam, AZ .................................
09429100
ab186,200
T
1956–66
Palo Verde Irrigation District Olive Lake Drain near
Blythe, CA.................................................................................
09429130
---
C,T
*1963–65,
1969–81
Colorado River at Taylor Ferry, near Blythe, CA..........................
09429188
ab187,700
C,T
1970–83
Palo Verde Irrigation District Outfall Drain
near Palo Verde, CA ..................................................................
09429220
---
C,T
*1962–65,
*1967–68,
1969–83
Palo Verde Irrigation District Anderson Drain near
Palo Verde, CA ..........................................................................
09429225
---
C,T
1969–81
Colorado River below Cibola Valley, AZ......................................
09429300
ab187,800
C,T
1956–66,
1969–83
Colorado River below Laguna Dam, AZ.......................................
09429600
ab188,600
C,T
1972–83
See footnotes at end of table.
xxi
DISCONTINUED SURFACE-WATER QUALITY STATIONS—Continued
Station name
Drainage area ,
Station number in square miles
Type of
record
Period of
record
Colorado River above Gila River, near Yuma, AZ........................
09429690
ab188,700
C,T
*1961–68,
1969–79
Gila River below Blue Creek, near Virden, NM ...........................
09432000
3,203
C,T
2002
Gila River near Clifton, AZ...........................................................
09442000
4,010
C,S,T
1976–79
Blue River near Clifton, AZ ..........................................................
09444200
506
C
1990–93
San Francisco River at Clifton, AZ ...............................................
09444500
a2,766
C,S,T
1943–44,
1964–67
San Francisco River near Clifton, AZ ...........................................
09444600
a2,770
C
1976–79,
1981–84,
1987–88,
1990–93
Gila River at Safford, AZ ..............................................................
09458500
10,459
C,T
1941–44
Gila River at Fort Thomas, AZ......................................................
---
---
C,T
1940–41,
1943–44
Gila River at Calva, AZ.................................................................
09466500
11,470
C,T
1943–44;
1974–94
San Carlos River near Peridot, AZ ................................................
09468500
1,026
C
1990–91
Gila River at Winkelman, AZ........................................................
09470000
a13,268
C,S,T
1976–84
Garden Canyon near Fort Huachuca, AZ ......................................
09470800
C,S,T
1962–64
San Pedro River near Benson, AZ.................................................
09471800
2,500
S
1966–74
San Pedro River near Winkelman, AZ ..........................................
09473400
4,449
C,S,T
1962–66
San Pedro River at Winkelman, AZ ..............................................
09473500
4,471
C,S,T
1966–80
Mineral Wash at Kelvin, AZ..........................................................
09473900
C,T
1956–58,
1962–64
Santa Cruz River near Nogales, AZ ..............................................
09480500
533
S,T
1966–74
Santa Cruz River at Rio Rico, AZ .................................................
09481710
1,004
C,T
1976–78
Santa Cruz River near Laveen, AZ................................................
09489000
8,581
C,S,T
1976,
1978–79
Black River near Fort Apache, AZ................................................
09490500
1,232
C,S,T
1976–79
White River near Fort Apache, AZ ...............................................
09494000
632
C,S,T
1976–79
Tonto Creek above Gun Creek, near Roosevelt, AZ .....................
09499000
675
C,S,T
1976–79,
1983
Salt River below Stewart Mountain Dam, AZ...............................
09502000
6,232
C,S,T
1950–92
Oak Creek at Red Rock Crossing near Sedona, AZ......................
09504440
252
C,T
1978–83;
1986–94
See footnotes at end of table.
8.38
97.9
xxii
DISCONTINUED SURFACE-WATER QUALITY STATIONS—Continued
Station name
Drainage area ,
Station number in square miles
Type of
record
Period of
record
C,T
1954–64,
1976–78
Oak Creek near Cornville, AZ.......................................................
09504500
357
Verde River near Camp Verde, AZ................................................
09506000
a5,009
C,S,T
1977,
1979–84
Verde River below Bartlett Dam, AZ ............................................
09510000
a6,161
C,S,T
1950–92
Turkey Creek near Cleator, AZ .....................................................
09512600
C,T
1980–82
Agua Fria River below Waddell Dam, AZ ....................................
09513600
1,459
C,T
1950–58;
1975;
1982–89;
1991–94
Gila River near Dome....................................................................
09520500
b57,850
C,S,T
1973, 1979,
1984–92
Gila River near mouth, near Yuma ................................................
09520700
b57,950
C,S,T
*1961–68,
1969–84
Colorado River at Yuma ................................................................
09521000
ab246,500
C,S,T
1905,
1926–28,
1943–44,
1947–63
Colorado River below Yuma Main Canal Wasteway,
at Yuma, AZ .............................................................................
09521100
ab246,500
C,T
1976,
1987–88
Colorado River at southerly international boundary,
near San Luis, AZ......................................................................
09522200
ab246,700
C,T
*1962–66,
1969–79
Gila Gravity Main Canal at Imperial Dam, AZ.............................
09522500
---
C,T
1956–81
Yuma Main Canal below Colorado River Siphon,
at Yuma, AZ ..............................................................................
09525500
---
C,T
*1926–28,
1943–70
Mittry Lake Outlet Channel near Yuma, AZ.................................
09527900
---
C,T
1974–83
North Gila Drain No. 1, near Yuma, AZ .......................................
09529000
---
C,T
*1966–68,
1969–81
North Gila Drain No. 3, near Yuma, AZ .......................................
09529050
---
C,T
*1966–68,
1969–81
South Gila Pump Outlet Channel No. 3, near Yuma, AZ..............
09529160
---
C,T
1969–83
Bruce Church Drain near Yuma, AZ .............................................
09529200
---
C,T
*1966,
1969–81
South Gila Pump Outlet Channel No. 2, near Yuma, AZ..............
09529240
---
C,T
*1968,
1969–83
Wellton-Mohawk Main Outlet Drain near Yuma, AZ...................
09529300
---
C,T
*1961–68,
1969–83
See footnotes at end of table.
89.4
xxiii
DISCONTINUED SURFACE-WATER QUALITY STATIONS—Continued
Station name
Drainage area ,
Station number in square miles
Type of
record
Period of
record
South Gila Pump Outlet Channel No. 1, near Yuma, AZ..............
09529360
---
C,T
*1968,
1969–83
South Gila Pump Outlet Channel No. 4, near Yuma, AZ..............
09529440
---
C,T
1969–82
Reservation Main Drain No. 4 at Yuma, AZ .................................
09530000
---
C,T
*1964–68,
1969–81
Yuma Mesa Outlet Drain near Yuma, AZ .....................................
09530200
---
C,T
1972–83,
1987–88
Drain 8-B near Yuma, AZ .............................................................
09530500
---
C,T
1970–81,
1987–88
Wellton-Mohawk Main Outlet Drain near Yuma, AZ...................
09531700
---
C,T
1969–74,
1983–85
Main Outlet Drain Extension below Morelos Dam, AZ ...............
09531900
---
C
1972–76
Main Drain at southerly international boundary, near
San Luis, AZ..............................................................................
09534000
---
C,T,
*1962–68,
1969–83
West Main Canal Wasteway at Arizona-Sonora boundary, AZ ....
09534300
---
C,T
1971–79
East Main Canal Wasteway at Arizona-Sonora boundary, AZ......
09534500
---
C,T
*1965–68,
1969–79
Vamori Wash at Kom Vo, AZ ........................................................
09535300
1,250
C,S,T
1978–86
Whitewater Draw near Douglas, AZ .............................................
09537500
1,023
C,T
1978–81
*
Unpublished data.
a
Includes area that is probably noncontributing.
b
Approximately.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
INTRODUCTION
The Water Resources Division of the U.S. Geological Survey (USGS), in cooperation with State
agencies, obtains a large amount of data on the water resources of Arizona each water year. These data,
accumulated during many water years, constitute a valuable database for developing an improved
understanding of the water resources of the State. To make these data readily available to interested parties
outside the USGS, the data are published annually in a report series entitled “Water Resources Data for
Arizona.”
This report includes records on both surface water and ground water in the State. Specifically, it
contains: (1) Discharge records for 201 streamflow-gaging stations, for 29 crest-stage, partial-record
streamflow stations, and 48 miscellaneous sites; (2) stage and (or) content records for 10 lakes and
reservoirs; (3) water-quality records for 21 streamflow-gaging stations and 65 wells; and (4) water levels
for 18 wells.
This series of annual reports for Arizona began with the 1961 water year with a report that contained
only data relating to surface water. For the 1964 water year, a similar report was introduced that contained
only data on water quality. Beginning with the 1975 water year, the report format was changed to present,
in one volume, data on quantities of surface water, quality of surface water and ground water, and
ground-water levels.
Before introduction of this series and for several water years concurrent with it, water-resources data
for Arizona were published in the USGS Water-Supply Paper series. Data on stream discharge and stage
and on lake or reservoir contents and stage, through September 1960, were published annually under the
title “Surface-Water Supply of the United States, Part 9.” For the 1961 through 1970 water years, the data
were published in two 5-year reports. Data on chemical quality, temperature, and suspended sediment for
the 1941 through 1970 water years were published annually under the title “Quality of Surface Waters of
the United States,” and water levels for the 1935 through 1974 water years were published under the title
“Ground-Water Levels in the United States.” The above mentioned Water-Supply Papers may be consulted
in the libraries of the University of Arizona, Arizona State University, and the State of Arizona in Phoenix;
principal cities in the United States; or may be purchased from the Branch of Information Services, USGS,
Box 25286, Denver Federal Center, Denver, CO 80225-0046.
Publications similar to this report are published annually by the USGS for all States. These official
USGS reports have an identification number consisting of the two-letter State abbreviation, the last two
digits of the water year, and the volume number. For example, this volume is identified as “USGS
Water-Data Report AZ–02–1.” For archiving and general distribution, the reports for 1971–74 water years
also are identified as water-data reports. These water-data reports are for sale in paper copy or in
microfiche by the National Technical Information Service, U.S. Department of Commerce, Springfield,
VA, 22161. Information for ordering specific reports and data retrievals may be obtained from the District
Chief at the address given on the back of the title page or by telephone (520) 670-6671.
2
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
COOPERATION
The USGS and organizations of the State of Arizona have had cooperative agreements for the
systematic collection of surface-water records since 1912, for ground-water levels since 1939, and for
water-quality records since 1969. Organizations that assisted in collecting data through funding
agreements with the Survey are:
Arizona Department of Environmental Quality
The Hopi Tribe
Arizona Department of Water Resources
The Hualapai Tribe
Bureau of Indian Affairs
Metropolitan Water District of Southern California
Bureau of Land Management
National Park Service
Bureau of Reclamation
The Navajo Nation
Central Arizona Water Conservation District
Phelps Dodge Corporation
City of Flagstaff
Pima County Flood Control District
City of Nogales
Salt River Valley Water Users’ Association
City of Safford
Show Low Irrigation Company
City of Tucson
The Tohono O’odham Nation
Cochise County
U.S. Army Corps of Engineers
Flood Control District of Maricopa County
U.S. Army Fort Huachuca
Forest Service
U.S. Fish and Wildlife Service
Gila Valley Irrigation District
The White Mountain Apache Tribe
Gila Water Commissioner
The Yavapai-Prescott Indian Tribe
The Havasupai Tribe
The Zuni Pueblo
Assistance in the form of services was given by the International Boundary and Water Commission,
the National Weather Service, and the Arizona Public Service Co. Organizations that supplied data are
acknowledged in station descriptions.
HYDROLOGIC CONDITIONS
As is common in Arizona, streamflow varied greatly in the 2002 water year—from month to month
throughout the year and from place to place in the State. The variations are related to differences in
precipitation, temperature, topography, and geology. The yearly discharge at five key streamflow-gaging
stations ranged from 29 to 57 percent of the median of yearly discharges. The median of the yearly
discharges is defined as the middle value of discharge when arranged in order of size. For these index
stations, the median is computed from the yearly discharges for the 1950–2002 period of record.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
3
The yearly discharge for the 2002 water year was within the normal range at one station, and was
deficient at four stations. Excessive discharge is defined as a discharge greater than the 75-percent quartile,
that is, greater than 75-percent of the values arranged in order of magnitude; deficient discharge is less than
the 25-percent quartile. The yearly discharge for the 2002 water year and the relation to the median of
yearly discharges for the period 1950–2002 for the five index gaging stations are given below.
Station
Little Colorado River near Cameron
Gila River at head of Safford Valley, near Solomon
San Pedro River at Charleston
Salt River near Roosevelt
Verde River below Tangle Creek, above Horseshoe Dam
Discharge (acre-feet)
Percent of median
74,540
101,800
7,420
149,000
127,900
57
46
29
35
40
Figure 1 shows the mean monthly discharge for the 2002 water year compared with the median of
mean monthly discharge for the period 1950–2002 at four representative gaging stations for which
long-term records are available.
Water Use
Arizona is an arid state in which economic development is influenced largely by the location of
adequate water supplies. Water demand is met by pumping ground water from aquifers, or by conveying
surface water through a system of reservoirs and canals. The purpose of this program is to provide
water-use information to local, State, and regional agencies for optimal water management. The goal of the
water-use program is to define water-use patterns throughout the State of Arizona. Ground-water
withdrawals from municipal, industrial (mining and thermoelectric), and irrigation for the years
1991–2000 are available at: http://az.water.usgs.gov/local/local.html.
4
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
1,200
1,000
1,400
09402000.
Little Colorado River
near Cameron,
Arizona. Drainage
area 26,459
square miles
1,200
09498500.
Salt River near
Roosevelt, Arizona.
Drainage area
4,306 square miles
1,000
800
600
MEAN MONTHLY DISCHARGE, IN CUBIC FEET PER SECOND
MEAN MONTHLY DISCHARGE, IN CUBIC FEET PER SECOND
800
400
200
0
500
400
0
0
0
0
0 00
09448500.
Gila River at
head of Safford Valley
near Solomon, Arizona.
Drainage area 7,868
square miles
300
600
400
200
0
800
700
600
09508500.
Verde River
below
Tangle Creek,
above Horseshoe
Dam, Arizona.
Drainage area
5,858
square miles
500
400
200
300
200
100
AUG.
SEPT.
JULY
JUNE
MAY
APR.
FEB.
MAR.
JAN.
DEC.
NOV.
OCT.
0
SEPT.
JULY
AUG.
MAY
JUNE
APR.
MAR.
JAN.
FEB.
DEC.
NOV.
0
OCT.
100
EXPLANATION
MEDIAN OF MEAN MONTHLY
DISCHARGE FOR 1950 –2002
MEAN MONTHLY DISCHARGE
FOR 2002 WATER YEAR
0
NUMBER, 0, INDICATES NO
DISCHARGE
Figure 1. Mean monthly discharge for the 2002 water year compared with median of mean monthly discharge for period
1950–2002 at four representative gaging stations for which long-term records are available.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
5
SPECIAL NETWORKS AND PROGRAMS
Hydrologic Benchmark Network is a network of 50 sites in small drainage basins around the country
whose purpose is to provide consistent data on the streamflow representative of undeveloped watersheds
nationwide, and to provide analyses on a continuing basis to compare and contrast conditions observed in
basins more obviously affected by human activities. At 10 of these sites, water-quality information is being
gathered on major ions and nutrients, primarily to assess the effects of acid deposition on stream chemistry.
Additional information on the Hydrologic Benchmark Program can be found at
http://water.usgs.gov/hbn/.
National Stream-Quality Accounting Network (NASQAN) monitors the water quality of large rivers
within the Nation’s largest river basins. From 1995 through 1999, a network of approximately 40 stations
was operated in the Mississippi, Columbia, Colorado, and Rio Grande basins. For the period 2000 through
2004, sampling was reduced to a few index stations on the Colorado and Columbia so that a network of
5 stations could be implemented on the Yukon River. Samples are collected with sufficient frequency that
the flux of a wide range of constituents can be estimated. The objective of NASQAN is to characterize the
water quality of these large rivers by measuring concentration and mass transport of a wide range of
dissolved and suspended constituents, including nutrients, major ions, dissolved and sediment-bound
heavy metals, common pesticides, and inorganic and organic forms of carbon. This information will be
used (1) to describe the long-term trends and changes in concentration and transport of these constituents;
(2) to test findings of the National Water-Quality Assessment Program (NAWQA); (3) to characterize
processes unique to large-river systems such as storage and re-mobilization of sediments and associated
contaminants; and (4) to refine existing estimates of off-continent transport of water, sediment, and
chemicals for assessing human effects on the world’s oceans and for determining global cycles of carbon,
nutrients, and other chemicals. Additional information about the NASQAN Program can be found at
http://water.usgs.gov/nasqan/.
The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) provides
continuous measurement and assessment of the chemical constituents in precipitation throughout the
United States. As the lead federal agency, the USGS works together with over 100 organizations to provide
a long-term, spatial and temporal record of atmospheric deposition generated from a network of
225 precipitation chemistry monitoring sites. This long-term, nationally consistent monitoring program,
coupled with ecosystem research, provides critical information toward a national scorecard to evaluate the
effectiveness of ongoing and future regulations intended to reduce atmospheric emissions and subsequent
impacts to the Nation’s land and water resources. Reports and other information on the NADP/NTN
Program, as well as all data from the individual sites, can be found at http://bqs.usgs.gov/acidrain/.
The National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey is a
long-term program with goals to describe the status and trends of water-quality conditions for a large,
representative part of the Nation’s ground- and surface-water resources; provide an improved
understanding of the primary natural and human factors affecting these observed conditions and trends;
and provide information that supports development and evaluation of management, regulatory, and
monitoring decisions by other agencies.
Assessment activities are being conducted in 59 study units (major watersheds and aquifer systems)
that represent a wide range of environmental settings nationwide and that account for a large percentage of
the Nation’s water use. A wide array of chemical constituents will be measured in ground water, surface
water, streambed sediments, and fish tissues. The coordinated application of comparative hydrologic
studies at a wide range of spatial and temporal scales will provide information for decision making by
water-resources managers and a foundation for aggregation and comparison of findings to address
water-quality issues of regional and national interest.
Communication and coordination between USGS personnel and other local, State, and federal interests
are critical components of the NAWQA Program. Each study unit has a local liaison committee consisting
of representatives from key federal, State, and local water resources agencies, Indian nations, and
6
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
universities in the study unit. Liaison committees typically meet semiannually to discuss their information
needs, monitoring plans and progress, desired information products, and opportunities to collaborate
efforts among the agencies. Additional information about the NAWQA Program can be found at
http://water.usgs.gov/nawqa/.
The Central Arizona Basins (CAZB) NAWQA, which includes much of the Gila River above Gillespie
Dam and the Phoenix and Tucson areas, began in 1994. Data on physical, chemical, and biological
properties of ground-water and surface-water resources in the CAZB study unit will be combined with data
from as many as 53 other study units to represent water-quality conditions of resources that provide more
than 60 percent of the Nation’s public supplies.
Arizona Fixed Station Network is part of the State quality monitoring program and includes a network
of water-quality sites at established surface-water stations, except for Verde River above West Clear Creek.
Some sites are sampled in conjunction with the NASQAN and NAWQA. This network provides essential
data for State water-quality assessment programs including the biennial report required by the Federal
Clean Water Act.
Station name
Station number
NASQAN
Arizona Fixed
Station Network
Colorado River at Lees Ferry
09380000
X
Colorado River above Diamond Creek
09404200
Colorado River below Parker Dam
09427520
X
Gila River at the head of Safford Valley near Solomon
09448500
X
Gila River at Calva
09466500
X
Gila River at Kelvin
09474000
X
Pinal Creek at Inspiration Dam, near Globe
09498400
X
Salt River near Roosevelt
09498500
X
Salt River below Stewart Mountain Dam
09502000
X
Verde River near Clarkdale
09504000
X
East Verde River near Childs
09507980
X
Verde River below Tangle Creek above Horseshoe Dam
09508500
X
Verde River below Bartlett Dam
09510000
X
Gila River above diversions at Gillespie Dam
09518000
X
Colorado River at northerly international boundary,
above Morelos Dam near Andrade, CA
09522000
X
X
X
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
7
EXPLANATION OF THE RECORDS
The surface-water and ground-water records published in this report are for the 2002 water year that
began October 1, 2001, and ended September 30, 2002. A calendar of the water year is provided on the
inside of the front cover. The records contain streamflow data, stage and content data for lakes and
reservoirs, water-quality data for surface water and ground water, and ground-water-level data. The
locations of the stations where the data were collected are shown in figures 4 through 7. The following
sections of the introductory text are presented to provide users with a more detailed explanation of how the
hydrologic data published in this report were collected, analyzed, computed, and arranged for presentation.
Station Identification Numbers
Each data station, whether stream site or well, in this report is assigned a unique identification number.
This number is unique in that it applies specifically to a given station and to no other. The number usually
is assigned when a station is first established and is retained for that station indefinitely. The systems used
by the USGS to assign identification numbers for surface-water stations and for ground-water well sites
differ, but both are based on geographic location. The “downstream order” system is used for regular
surface-water stations and the “latitude-longitude” system is used for wells and, in Arizona, for
surface-water stations where only miscellaneous measurements are made.
Downstream Order System
Since October 1, 1950, the order of listing hydrologic-station records in USGS reports is in a
downstream direction along the main stream. All stations on a tributary entering upstream from a
mainstream station are listed before that station. A station on a tributary that enters between two
mainstream stations is listed between them. A similar order is followed in listing stations on first rank,
second rank, and other ranks of tributaries. The rank of any tributary with respect to the stream to which it
is immediately tributary is indicated by an indention in the “List of Stations” in the front of this report.
Each indention represents one rank. This downstream order and system of indention show which stations
are on tributaries between any two stations and the rank of the tributary on which each station is situated.
The station identification number is assigned according to downstream order. In assigning station
numbers, no distinction is made between partial-record stations and other stations; therefore, the station
number for a partial-record station indicates downstream-order position in a list made up of both types of
stations. Gaps are left in the series of numbers to allow for new stations that may be established; hence, the
numbers are not consecutive. The complete eight-digit number for each station, such as 09402500, which
appears just to the left of the station name, includes the two-digit part number “09” plus the six-digit
downstream-order number “402500.” The part number “09” designates the major river basin (Colorado
River Basin).
Latitude-Longitude System
The identification numbers for wells and miscellaneous surface-water sites are assigned according to
the grid system of latitude and longitude. The number consists of 15 digits. The first six digits denote the
degrees, minutes, and seconds of latitude; the next seven digits denote degrees, minutes, and seconds of
longitude; and the last two digits (assigned sequentially) identify the wells or other sites within a 1-second
grid. This site identification number, once assigned, is a pure number, and has no locational significance.
In the rare instance where the initial determination of latitude and longitude are found to be in error, the
station will retain its initial identification number, however, its true latitude and longitude will be listed in
the LOCATION paragraph of the station description (fig. 2).
8
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Local Well Numbers
A local well number is assigned to each ground-water site on the basis of the Gila and Salt River
meridian and base line (fig. 3). A different numbering system is used on the Navajo and Hopi Indian
Reservations. The Navajo Indian Reservation is divided into 17 administrative districts, numbered 1 to 5
and 7 to 18, and the Hopi Indian Reservation comprises district 6. The area is further divided into
15-minute quadrangles arbitrarily numbered from 1 to 151 starting in the northeast corner of the area and
numbered consecutively in rows from east to west. Within the 15-minute quadrangle, the well is located in
miles south and west from the northeast corner of the quadrangle. The first two numbers in the well
number represent the district, the next three numbers are the quadrangle, the decimal numbers are miles
west by (X) miles south of the northeast corner of the quadrangle. Thus, the number 02 021-05.28X10.68
states that the well is in district 2, quadrangle 21, and is 5.28 miles west by 10.68 miles south of the
northeast corner of the quadrangle.
The well numbers used by the USGS in Arizona are in accordance with the Bureau of Land
Management's system of land subdivision. The land survey in Arizona is based on the Gila and Salt River
meridian and base line, which divide the State into four quadrants. These quadrants are designated
counterclockwise by the capital letters A, B, C, and D. All land north and east of the point of origin is in
A quadrant, that north and west in B quadrant, that south and west in C quadrant, and that south and east in
D quadrant. The first digit of a well number indicates the township, the second the range, and the third the
section in which the well is situated. The lowercase letters a, b, c, and d after the section number indicate
the well location within the section. The first letter denotes a particular 160-acre tract, the second the
40-acre tract, and the third the 10-acre tract. These letters also are assigned in a counterclockwise direction,
beginning in the northeast quarter. If the location is known within the 10-acre tract, three lowercase letters
are shown in the well number. In the example shown, well number (D-04-05)19caa designates the well as
being in the NE1/4NE1/4SW1/4 sec. 19, T. 4 S., R. 5 E. Where more than one well is within a 10-acre tract,
consecutive numbers beginning with 1 are added as suffixes.
Records of Stage and Water Discharge
Records of stage and water discharge may be complete or partial. Complete records of discharge are
those obtained using a continuous stage-recording device through which either instantaneous or mean daily
discharges may be computed for any time or any period of time during the period of record. Complete
records of lake and reservoir contents are those for which stage or contents may be computed or estimated
with reasonable accuracy for any time or period of time. They may be obtained using a continuous
stage-recording device, but need not be. Because daily mean discharges and end-of-day contents
commonly are published for such stations, they are referred to as “daily stations.”
By contrast, partial records are obtained through discrete measurements without using a continuous
stage-recording device and pertain only to a few flow characteristics or perhaps only one. The nature of the
partial record is indicated by table titles such as “Crest-stage partial records,” or “Low-flow partial
records.” Records of miscellaneous discharge measurements or of measurements from special studies,
such as low-flow seepage studies, may be considered as partial records, but they are presented separately in
this report. Location of all complete-record and crest-stage partial-record stations for which data are given
in this report are shown in figures 4 through 7.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
112°26'52''
33°11'37''
9
112°26'50''
26'51''
331136112265001
11'36''
331135112265101
331135112265102
331135112265001
331135112265002
33°11'35''
Figure 2. System for numbering wells and miscellaneous sites (latitude
and longitude).
WELL-NUMBERING AND NAMING SYSTEM
WELL (D-04-05)19caa
R. 5 E.
6
B
C
5
4
3
2
1
D
a
b
A
b
T.
4
S.
7
8
9
18
17
16
10
11
12
15
14
13
D
19
20
21
a
19
23
24
30
29
28
27
26
25
31
32
33
34
35
36
c
c
c
a
b
22
a
d
d
Quadrant D, Township 04 South, Rang e 05 East, section 19, quar ter section c,
quar ter section a, quar ter section a
Figure 3. Well numbering and naming system.
d
10
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Data Collection and Computation
The data obtained at a complete-record gaging station on a stream or canal consist of a continuous
record of stage, individual measurements of discharge throughout a range of stages, and notations
regarding factors that may affect the relation between stage and discharge. These data, together with
supplemental information, such as weather records, are used to compute daily discharges. The data
obtained at a complete-record gaging station on a lake or reservoir consist of a record of stage and of
notations regarding factors that may affect the relation between stage and lake contents. These data are
used with stage-area and stage-capacity curves or tables to compute water-surface areas and lake storage.
Continuous records of stage are obtained with analog recorders that trace continuous graphs of stage or
with digital recorders that punch stage values on paper tapes at selected time intervals. Measurements of
discharge are made with current meters using methods adapted by the USGS as a result of experience
accumulated since 1880. These methods are described in standard textbooks, Water-Supply Paper 2175,
and the U.S. Geological Survey Techniques of Water-Resources Investigations (TWRI’s), book 3, chap. A1
through A19 and book 8, chaps. A2 and B2. The methods are consistent with the American Society for
Testing and Materials (ASTM) standards and generally follow the standards of the International
Organization for Standards (ISO).
In computing discharge records, results of individual measurements are plotted against the
corresponding stages, and stage-discharge relation curves then are constructed. From these curves, rating
tables indicating the approximate discharge are prepared for any stage within the range of the
measurements. If it is necessary to define extremes of discharge outside the range of current-meter
measurements, the curves are extended using (1) logarithmic plotting; (2) velocity-area studies; (3) results
of indirect measurements of peak discharge, such as slope-area or contracted-opening measurements, and
computations of flow-over-dam or weirs; or (4) step-backwater techniques.
Daily mean discharges are computed by applying the daily mean stages (gage heights) to the
stage-discharge curves or tables. If the stage-discharge relation is subject to change because of frequent or
continual change in the physical features that form the control, the daily mean discharge is determined by
the shifting-control method in which correction factors based on individual discharge measurements and
notes of the personnel making the measurements are applied to the gage heights before the discharges are
determined from the curves or tables. This shifting-control method also is used if the stage-discharge
relation is changed temporarily because of aquatic growth or debris on the control. For some stations,
formation of ice in the winter may so obscure the stage-discharge relation that daily mean discharges must
be estimated from other information such as temperature and precipitation records, notes or observations,
and records for other stations in the same or nearby basins for comparable periods.
At some streamflow-gaging stations, the stage-discharge relation is affected by backwater from
reservoirs, tributary streams, or other sources. This necessitates the use of the slope method in which the
slope or fall in a reach of the stream is a factor in computing discharge. The slope or fall is obtained by
means of an auxiliary gage set at some distance from the base gage. At some stations, the stage-discharge
relation is affected by changing stage; at these stations, the rate of change in stage is used as a factor in
computing discharge.
In computing records of lake or reservoir contents, it is necessary to have available surveys, curves, or
tables to define the relation between stage and contents. The application of stage to the stage-content
curves or tables gives the contents from which daily, monthly, or yearly changes then are determined. If the
stage-content relation changes because of deposition of sediment in a lake or reservoir, periodic resurveys
may be necessary to redefine the relation. When this is done, the contents computed may become
increasingly in error as time increases since the last survey. Discharges over lake or reservoir spillways are
computed from stage-discharge relations in the same manner as other stream discharges are computed.
For some gaging stations, there are periods when no gage-height record is obtained or the recorded
gage height is so faulty that it cannot be used to compute daily discharge or contents. This conditions
occurs when the recorder stops or otherwise fails to operate properly, intakes are plugged, the float is
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
11
frozen in the well, or for other reasons. For such periods, the daily discharges are estimated from the
recorded range in stage, previous or following record, discharge measurements, weather records, and
comparison with other station records from the same or nearby basin. Likewise, daily contents may be
estimated from operator's logs, previous or following record, inflow-outflow studies, and other
information. Information explaining how estimated daily values of discharges are identified in station
records is included in the next two sections, “Data Presentation” (REMARKS paragraph) and “Identifying
Estimated Daily Discharge.”
Data Presentation
Streamflow data in this report are presented in a format that is considerably different from the format
in data reports prior to the 1992 water year. The major changes are that statistical characteristics of
discharge now appear in tabular summaries following the water-year data table and less information is
provided in the text or station manuscript above the table. These changes represent the results of a pilot
program to reformat the annual water-data report to meet current user needs and data preferences.
The records published for each continuous-record surface-water discharge station (gaging station) now
consist of four parts, the manuscript or station description; the data table of daily mean values of discharge
for the current water year with summary data; a tabular statistical summary of monthly mean flow data for
a designated period, by water year; and a summary statistics table that includes statistical data of annual,
daily, and instantaneous flows as well as data pertaining to annual runoff, 7-day low-flow minimums, and
flow duration.
Station Manuscript
The manuscript provides, under various headings, descriptive information such as station location,
period of record, historical extremes outside the period of record, record accuracy, and other remarks
pertinent to station operation and regulation. The following information, as appropriate, is provided with
each continuous record of discharge or lake content. Comments to follow clarify information presented
under the various headings of the station description.
LOCATION.—Information on locations is obtained from the most accurate maps available or from Global
Positioning System data. The location of the gage with respect to the cultural and physical features in the vicinity
and with respect to the reference place mentioned in the station name is given.
DRAINAGE AREA.—Drainage areas are measured using the most accurate maps available. Because the type of
maps available varies from one drainage basin to another, the accuracy of drainage areas likewise varies. Drainage
areas are updated as better maps become available.
PERIOD OF RECORD.—The period for which there are published records for the station or for an equivalent
station. An equivalent station is one that was in operation at a time when the present station was not in operation and
whose location was such that records from it can reasonably be considered equivalent with records from the present
station.
REVISED RECORDS.—Published records, because of new information, occasionally are found to be incorrect, and
revisions are printed in later reports. Listed under this heading are all the reports in which revisions have been
published for the station and the water years to which the revisions apply. If a revision did not include daily,
monthly, or annual figures of discharge, that fact is noted after the year dates as follows: “(M)” means that only the
instantaneous maximum discharge was revised; “(m)” that only the instantaneous minimum was revised; and “(P)”
that only peak discharges were revised. If the drainage area has been revised, the report in which the most recently
revised figure was first published is given.
GAGE.—The type of gage in current use, the datum of the current gage referred to sea level (see Definition of
Terms), and a condensed history of the types, locations, and datums of previous gages are given under this heading.
REMARKS.—All periods of estimated daily discharge record will either be identified by date in this paragraph for
discharge stations or flagged in the daily discharge table. (See next section, “Identifying Estimated Daily
Discharge.”) If a REMARKS statement is used to identify estimated record, the paragraph will begin with this
12
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
information presented as the first entry. The paragraph also is used to present information relative to the accuracy of
the records, to special methods of computation, to conditions that affect natural flow at the station, and possibly to
other pertinent items. For reservoir stations, information is given on the dam forming the reservoir, the capacity,
outlet works and spillway, and purpose and use of the reservoir.
COOPERATION.—Records provided by a cooperating organization or obtained for the USGS by a cooperating
organization are identified here.
AVERAGE DISCHARGE.—The discharge value given is the arithmetic mean of the water-year mean discharges.
Average discharge is not computed for stations where diversions, storage, or other water-use practices cause the
value to be meaningless. If water developments significantly altering flow at a station are put into use after the
station has been in operation for a period of years, a new average is computed as soon as 5 water years of record
have accumulated following the development. The median of yearly mean discharges also is given under this
heading for stations having 10 or more water years of record, if the median differs from the average given by more
than 10 percent.
EXTREMES FOR PERIOD OF RECORD.—Extremes may include maximum and minimum discharges or
contents. Unless otherwise qualified, the maximum discharge or content is the instantaneous maximum
corresponding to the highest stage that occurred. The highest stage may have been obtained from a graphic or
digital recorder, a crest-stage, or by direct observation of a nonrecording gage. If the maximum stage did not occur
on the same day as the maximum discharge or content, it is given separately. Similarly, the minimum is the
instantaneous minimum discharge, unless otherwise qualified, and is determined and reported in the same manner
as the maximum.
EXTREMES OUTSIDE PERIOD OF RECORD.—Information is included on major floods or unusually low
flows that occurred outside the stated period of record. The information may or may not have been obtained by the
USGS.
EXTREMES FOR CURRENT YEAR.—Extremes given are similar to those for the period of record, except the
peak discharge listing may include secondary peaks. For stations meeting certain criteria, all peak discharges and
stages occurring during the water year and greater than a selected base discharge are presented under this heading.
The peaks greater than the base discharge, excluding the highest one, are referred to as secondary peaks. Peak
discharges are not published for canals, ditches, drains, or streams for which the peaks are subject to substantial
control by man. The time of occurrence for peaks is expressed in 24-hour local standard time. For example,
12:30 a.m. is 0030, and 1:30 p.m. is 1330. The minimum for the current water year appears below the table of
peak data.
REVISIONS.—If errors in published water-quality records are discovered after publication, appropriate updates are
made in the U.S. Geological Survey’s distributed data system, NWIS, and subsequently to its web-based National
data system, NWISWeb [http://water.usgs.gov/nwis/nwis]. Because the usual volume of updates makes it
impractical to document individual changes in the State data-report series or elsewhere, potential users of U.S.
Geological Survey water-quality data are encouraged to obtain all required data from NWIS or NWISWeb to ensure
the most recent updates. Updates to NWISWeb are currently made on an annual basis.
Data Table of Daily Mean Values
The daily table for streamflow-gaging stations gives mean discharge for each day and is followed by
monthly and yearly summaries. In the monthly summary below the daily table, the line headed “TOTAL”
gives the sum of the daily figures. The line headed “MEAN” gives the average flow in cubic feet per second
during the month. The lines headed “MAX” and “MIN” give the maximum and minimum daily discharges,
respectively, for the month. Discharge for the month also is usually expressed in cubic feet per second per
square mile (line headed “CFSM”), or in inches (line headed “IN.”), or in acre-feet (line headed “AC-FT”).
Figures for cubic feet per second per square mile and runoff in inches are omitted if there is extensive
regulation or diversion or if the drainage area includes large noncontributing areas. In the yearly summary
below the monthly summary, the figures shown are the appropriate discharges for the calendar and water
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
13
years. At some stations monthly and (or) yearly observed discharges are adjusted for reservoir storage or
diversion, or diversions or reservoir contents are given. These figures are identified by a symbol and
corresponding footnote.
Statistics of Monthly Mean Data
A tabular summary of the mean (line headed “MEAN”), maximum (line headed “MAX”), and
minimum (line headed “MIN”) of monthly mean flows for each month for a designated period is provided
below the mean values table. The water years of the first occurrence of the maximum and minimum
monthly flows are provided immediately below those figures. The designated period will be expressed as
, BY WATER YEAR (WY),” and will list the first and last water years of
“FOR WATER YEARS
the range of years selected from the PERIOD OF RECORD paragraph in the station manuscript. The
summary will consist of all the station records within the specified water years, inclusive, including
complete months of record for partial water years, if any, and may coincide with the period of record for
the station. The water years for which the statistics are computed will be consecutive unless a break in the
station record is indicated in the manuscript.
Summary Statistics
A table titled “SUMMARY STATISTICS” follows the statistics of monthly mean data tabulation.
This table consists of four columns, and the first column contains the line headings of the statistics being
reported. The table provides a statistical summary of yearly, daily, and instantaneous flows, not only for the
current water year but also for the previous calendar year and for a designated period, as appropriate.
The designated period selected, “WATER YEARS ___ - ___” will consist of all the station record within
the specified water years, inclusive, including complete months of record for partial water years, if any, and
may coincide with the period of record for the station. The water years for which the statistics are
computed will be consecutive unless a break in the station record is indicated in the manuscript. All the
calculations for the statistical characteristics designated ANNUAL (see line headings below) except for the
“ANNUAL 7-DAY MINIMUM” statistic, are calculated for the designated period using complete water
years. The other statistical characteristics may be calculated using partial water years.
The date or water year, as appropriate, of the first occurrence of each statistic reporting extreme values
of discharge is provided adjacent to the statistic. Reported occurrences may be noted in the REMARKS
paragraph of the manuscript or in footnotes. The designated period may not be the same as the station
period of record published in the manuscript. Occasionally the dates of occurrence listed for the daily and
instantaneous extremes in the designated-period column, therefore, may not be within the selected water
years listed in the heading. When this occurs, it will be noted in the REMARKS paragraph or in footnotes.
Selected streamflow-duration-curve statistics and runoff data also are given. Runoff data may be omitted if
there is extensive regulation or diversion of flow in the drainage basin.
The following summary statistics data, as appropriate, are provided with each continuous record of
discharge. Comments that follow clarify information presented under the various line headings of the
summary-statistics table.
ANNUAL TOTAL.—The sum of the daily mean values of discharge for the year. At some stations, the annual total
discharge is adjusted for reservoir storage or diversion. The adjusted figures are identified by a symbol and
corresponding footnotes.
ANNUAL MEAN.—The arithmetic mean of the individual daily mean discharges for the year noted or for the
designated period. At some stations the yearly mean discharge is adjusted for reservoir storage or diversion.
The adjusted figures are identified by a symbol and corresponding footnotes. At least 5 complete years of record
must be available before this statistic is published for the designated period.
HIGHEST ANNUAL MEAN.—The maximum annual mean discharge occurring for the designated period.
LOWEST ANNUAL MEAN.—The minimum annual mean discharge occurring for the designated period.
14
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
HIGHEST DAILY MEAN.—The maximum daily mean discharge for the year or for the designated period.
LOWEST DAILY MEAN.—The minimum daily mean discharge for the year or for the designated period.
ANNUAL 7-DAY MINIMUM.—The lowest mean discharge for 7 consecutive days for a calendar year or a water
year. Most low-flow frequency analyses of annual 7-day minimum flows use a climatic year (April 1–March 31).
The date shown in the summary statistics table is the first day of the 7-day period. (This value should not be
confused with the 7-day 10-year low-flow statistic.)
MAXIMUM PEAK FLOW.—The maximum instantaneous peak discharge occurring for the water year or
designated period. Occasionally the maximum flow for a year may occur at midnight at the beginning or end of the
year, on a recession from or rise toward a high peak in the adjoining year. In this case, the maximum peak flow is
given in the table and the maximum flow may be reported in a footnote or in the REMARKS paragraph in the
manuscript.
MAXIMUM PEAK STAGE.—The maximum instantaneous peak stage occurring for the water year or designated
period. Occasionally the maximum stage for a year may occur at midnight at the beginning or end of the year, on a
recession from or rise toward a higher peak in the adjoining year. In this case, the maximum peak stage is given in
the table and the maximum stage may be reported in the REMARKS paragraph in the manuscript or in a footnote. If
the dates of occurrence of the maximum peak stage and maximum peak flow are different, the REMARKS
paragraph in the manuscript or a footnote may be used to provide further information.
ANNUAL RUNOFF.—Indicates the total quantity of water in runoff for a drainage area for the year. Data reports
may use any of the following units of measurement in presenting annual runoff data:
Acre-foot (AC-FT) is the quantity of water required to cover 1 acre to a depth of 1 foot and is equal to 43,560 cubic
feet or about 326,000 gallons or 1,233 cubic meters.
Cubic feet per second per square mile (CFSM) is the average number of cubic feet of water flowing per second from
each square mile of area drained, assuming that the runoff is distributed uniformly in time and area for the year.
Inches (INCHES) indicates the depth to which the drainage area would be covered if all the runoff for a given time
period were uniformly distributed on it.
10 PERCENT EXCEEDS.—The discharge that has been exceeded 10 percent of the time for the designated period.
50 PERCENT EXCEEDS.—The discharge that has been exceeded 50 percent of the time for the designated period.
90 PERCENT EXCEEDS.—The discharge that has been exceeded 90 percent of the time for the designated period.
Data collected at partial-record stations follow the information for continuous-record sites. Data for
partial-record discharge stations are presented in a table of annual maximum stage and discharge at
crest-stage stations. The table of crest-stage stations is followed by a listing of discharge measurements
made at sites other than continuous-record or partial-record stations. These measurements generally are
made in times of drought or flood to give better areal coverage to those events. Those measurements and
others collected for some special reason are called measurements at miscellaneous sites.
Identifying Estimated Daily Discharge
Estimated daily-discharge values published in the water-discharge tables of annual State data reports
are identified by flagging individual daily values with the letter symbol “e” and printing the table footnote,
“e, Estimated.”
Accuracy of the Records
The accuracy of streamflow records depends primarily on (1) the stability of the stage-discharge
relation or, if the control is unstable, the frequency of discharge measurements; and (2) the accuracy of
measurements of stage, measurements of discharge, and interpretation of records.
The accuracy attributed to the records is indicated under “REMARKS.” “Excellent” means that about
95 percent of the daily discharges are within 5 percent of the true; “good,” within 10 percent; and “fair,”
within 15 percent. Records that do not meet the criteria mentioned are rated “poor.” Different accuracies
may be attributed to different parts of a given record.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
15
Daily mean discharges in this report are given to the nearest hundredth of a cubic foot per second (ft3/s)
for values less than 1 ft3/s, to the nearest tenth between 1.0 and 10 ft3/s, to whole numbers between 10 and
1,000 ft3/s, and to three significant figures for more than 1,000 ft3/s. The number of significant figures used
is based solely on the magnitude of the discharge value. The same rounding rules apply to discharges listed
for partial-record stations and miscellaneous sites.
Discharge at many stations, as indicated by the monthly mean, may not reflect natural runoff owing to
the effects of diversion, consumption, regulation by storage, increase or decrease in evaporation due to
artificial causes, or to other factors. For such stations, figures of cubic feet per second per square mile and
of runoff, in inches, are not published unless satisfactory adjustments can be made for diversions, for
changes in contents of reservoirs, or for other changes incident to use and control. Evaporation from a
reservoir is not included in the adjustments for changes in reservoir contents unless it is so stated. Even at
those stations where adjustments are made, large errors in computed runoff may occur if adjustments or
losses are large in comparison with the observed discharge.
Other Records Available
The National Water Data Exchange (NAWDEX), USGS, Reston, VA 20192, maintains an index of
sites as well as an index of records of discharge collected by other agencies but not published by the USGS.
Information on records at specific sites can be obtained from that office upon request.
Several components of the National Water Information System (NWIS) are on the Arizona District
computer. Many of the data published in this report and much additional information can be retrieved from
the databases. The Ground Water Site Inventory (GWSI) database contains station numbers, well and
miscellaneous site numbers, local well numbers, locations, and other descriptive data for all USGS
data-collection sites. GWSI contains most of the data collected for wells except for chemical analyses.
The Automated Data Processing System (ADAPS) contains most surface-water data except for site
descriptions and chemical analyses. The Water Quality Data Processing System (QW) contains chemical
analyses of water from ground-water and surface-water sites.
Data retrievals from the three databases are available at cost on paper, disk, or nine-track computer
tape. Some of the retrievals produce data in a format suitable for machine reading that does not contain
blank lines or page headers.
Records of Surface-Water Quality
Records of surface-water quality ordinarily are obtained at or near streamflow-gaging stations because
interpretation of records of surface-water quality almost always requires corresponding discharge data.
Records of surface-water quality in this report may involve a variety of types of data and measurement
frequencies.
Classification of Records
Water-quality data for surface-water sites are grouped into one of three classifications. A continuousrecord station is a site where data are collected on a regularly scheduled basis. Frequency may be one or
more times daily, weekly, monthly, or quarterly. A partial-record station is a site where limited
water-quality data are collected systematically over a period of years. Frequency of sampling is usually less
than quarterly. A miscellaneous sampling site is a location, other than a continuing or partial-record
station, where random samples are collected to give better areal coverage to define water-quality
conditions in the river basin.
A careful distinction needs to be made between “continuing records” as used in this report and
“continuous recordings,” which refers to a continuous graph or a series of discrete values punched at short
intervals on a paper tape. Some records of water quality, such as temperature and specific conductance,
may be obtained through continuous recordings; however, because of costs, most data are obtained only
monthly or less frequently. Locations of stations for which records on the quality of surface water appear in
this report are shown in figures 5 and 6.
16
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Arrangement of Records
Water-quality records collected at a surface-water daily record station are published immediately
following that record regardless of the frequency of sample collection. Station number and name are the
same for both records. Where a surface-water daily record station is not available or where the water
quality differs significantly from that at the nearby surface-water station, the continuing water-quality
record is published with its own station number and name in the regular downstream order. Water-quality
data for partial-record stations and for miscellaneous sampling sites appear in separate tables following the
table of discharge measurements at miscellaneous sites.
Onsite Measurements and Sample Collection
In obtaining water-quality data, a major concern is the assurance that the data obtained represent the
in situ quality of the water. To assure this, certain measurements, such as water temperature, pH, and
dissolved oxygen, are made onsite when samples are taken. To assure that measurements made in the
laboratory also represent the in situ water, carefully prescribed procedures are followed in collecting the
samples, in treating the samples to prevent changes in quality pending analysis, and in shipping the
samples to the laboratory. Procedures for onsite measurements and for collecting, treating, and shipping
samples are given in publications on “Techniques of Water-Resources Investigations,” Book 1, Chap. D2;
Book 3, Chap. A1, A3, and A4; Book 9, Chap. A1–A9. These references are listed in the section entitled
“Techniques of Water-Resources Investigations of the U.S. Geological Survey.” These methods are
consistent with ASTM standards and generally follow ISO standards.
One sample can adequately define the water quality at a given time if the mixture of solutes throughout
the cross section is homogeneous. The concentration of solutes at different locations in the cross section,
however, may vary widely with different rates of water discharge depending on the source of material and
turbulence and mixing of the stream. Some streams must be sampled through several vertical sections to
obtain a representative sample needed for an accurate mean concentration and for use in calculating load.
All samples obtained for the National Stream-Quality Accounting Network (see “Special Networks and
Programs”) are obtained from at least several verticals. Whether samples are obtained from the centroid of
flow or from several verticals depends on flow conditions and other factors that must be evaluated by the
collector.
Chemical-quality data published in this report are considered to be the most representative value
available for the stations listed. The values represent water-quality conditions at the time of sampling as
much as possible and are consistent with available sampling techniques and methods of analysis. In the
rare case where an apparent inconsistency exists between a reported pH value and the relative abundance of
carbon dioxide species (carbonate and bicarbonate), the inconsistency is the result of a slight uptake of
carbon dioxide from the air by the sample between measurement of pH in the field and determination of
carbonate and bicarbonate in the laboratory.
For chemical-quality stations equipped with digital monitors, the records consist of daily maximum
and minimum values for each constituent measured and are based on hourly punches beginning at
0100 hours and ending at 2400 hours for the day of record. More detailed records (hourly values) may be
obtained from the District office whose address is given on the back of the title page of this report.
Water Temperature
Water temperatures are measured at the water-quality stations. In addition, water temperatures are
taken at the time discharge measurements are made for water-discharge stations. For stations where water
temperatures are taken manually once or twice daily, the water temperatures are taken at about the same
time each day. Large streams have a small diurnal temperature change; shallow streams may have a daily
range of several degrees and may closely follow the changes in air temperature. Some streams may be
affected by waste-heat discharges.
At stations where recording instruments are used, either mean temperatures or maximum and
minimum temperatures for each day are published. Water temperatures measured at the time of
water-discharge measurements are on file in the District office.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
17
Sediment
Suspended-sediment concentrations are determined from samples collected by using depth-integrating
samplers. Samples usually are obtained at several verticals in the cross section, or a single sample may be
obtained at a fixed point and the coefficient applied to determine the mean concentration in the cross
section.
During periods of rapidly changing flow or rapidly changing concentration, samples may have been
collected more frequently (twice daily or, in some instances, hourly). The published sediment discharges
for days of rapidly changing flow or concentration were computed by the subdivided-day method
(time-discharge weighted average). For those days when the published sediment-discharge value differs
from the value computed as the product of discharge times mean concentration times 0.0027, the reader
can assume that the sediment discharge for that day was computed by the subdivided-day method. For
periods when no samples were collected, daily discharges of suspended sediment were estimated on the
basis of water discharge, sediment concentrations observed immediately before and after the periods, and
suspended-sediment loads for other periods of similar discharge. Methods used in the computation of
sediment records are described in the TWRI, book 3, chap. C1 and C3. These methods are consistent with
ASTM standards and generally follow ISO standards.
At other stations, suspended-sediment samples were collected periodically at many verticals in the
stream cross section. Although data collected periodically may represent conditions only at the time of
observation, such data are useful in establishing seasonal relations between quality and streamflow and in
predicting long-term sediment-discharge characteristics of the stream. In addition to the records of
suspended-sediment discharge, records of the periodic measurements of the particle-size distribution of the
suspended sediment and bed material are included for some stations.
Cross-Sectional Data
Cross-sectional surveys of water temperature, pH, specific conductance, dissolved oxygen, and
suspended sediment are conducted at all NASQAN and Hydrologic Benchmark Network stations during
various seasons and surface-water discharges. Documentation of cross-section variation of water quality is
essential in order to determine how many samples in a cross section are necessary to ensure a
representative composite sample.
Laboratory Measurements
Sediment samples, samples for biochemical-oxygen demand (BOD), samples for indicator bacteria,
and daily samples for specific conductance are analyzed locally. All other samples are analyzed at the
USGS National Water-Quality Laboratory in Denver, Colorado. Methods used to analyze sediment
samples and to compute sediment records are described in the TWRI Book 5, Chapter C1. Methods used
by the USGS laboratories are given in the TWRI, book 1, chap. D2; book 3, chap.C2; and book 5, chaps.
A1, A3, A4, and A5. These methods are consistent with ASTM standards and generally follow ISO
standards.
MBAS determinations made from January 1, 1970, through August 29, 1993, at the National
Water-Quality Laboratory in Denver (Analyzing Agency Code 80020) are positively biased. These data
can be corrected on the basis of the following equation, if concentrations of dissolved nitrate plus nitrite, as
nitrogen, and dissolved chloride, determined concurrently with the MBAS data, are applied:
MBASCOR = M - 0.0088N - 0.00019C
where
MBASCOR = corrected MBAS concentrations, in milligrams per liter;
M = reported MBAS concentration, in milligrams per liter;
N = dissolved nitrate plus nitrite, as nitrogen, concentration, in milligrams per liter; and
C = dissolved chloride concentration, in milligrams per liter.
18
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
The detection limit of the new method is 0.02 mg/L, whereas the detection limit for the old method was
0.01 mg/L. A detection limit of 0.02 mg/L should be used with corrected MBAS data from January 1,
1970, through August 29, 1993. In March 1989, the National Water-Quality Laboratory discovered a bias
in the turbidimetric method for sulfate analysis, indicating that values below 75 mg/L have a median
positive bias of 2 mg/L above the true value for the period between 1982 and 1989.
Samples where the dissolved concentration of a constituent (which is theoretically less than or equal to
the total concentration) exceeds the respective total, may be due to unavoidable errors associated with
subsampling and sample processing, or limitations on precision and accuracy of the analytical procedure.
Identifying Estimated Concentrations
Estimated concentrations published in this report are identified by flagging individual values with the
symbol “E” and printing a table footnote “E, Estimated value.” A wide variety of conditions can justify
evoking the “E” remark code. All reported concentrations that are less than the lower reporting level (LRL)
for an analytical method or the lowest calibration standard used, whichever is higher, are qualified using an
“E” remark code. Reported concentrations that are greater than the highest calibration standard are also
qualified with an “E” remark code. The “E” code is also assigned by the laboratory under the following
conditions:
• Data quantification was not performed according to method-specific criteria.
• Performance of the analyte does not meet acceptable method-specific criteria. (Certain analytes that
rarely meet criteria are permanently “E” coded.)
• Deviation from the standard operating procedure was required.
• Some moderate losses occurred in sample preparation but were not quantifiable.
• Moderate matrix interference conditions occurred. (Severe matrix interference results in raised
reporting levels or deletion of the result.)
For microbiological values, an “E” is assigned when the reported value is not representative of an ideal
colony count.
Data Presentation
For continuing-record stations, information pertinent to the history of station operation is provided in
descriptive headings preceding the tabular data. These descriptive headings give details regarding location,
drainage area, period of record, type of data available, instrumentation, general remarks, cooperation, and
extremes for parameters currently measured daily. Tables of chemical, physical, biological, radiochemical
data, and other data obtained at a frequency less than daily are presented first. Tables of “daily values” of
specific conductance, pH, water temperature, dissolved oxygen, and suspended sediment follow in
sequence.
In the descriptive headings, if the location is identical to that of the discharge-gaging station, neither
the LOCATION nor the DRAINAGE AREA statements are repeated. The following information, as
appropriate, is provided with each continuous-record station. Comments that follow clarify information
presented under the various headings of the station description.
LOCATION.—See “Data Presentation” under “Records of Stage and Water Discharge”; same comments apply.
DRAINAGE AREA.—See “Data Presentation” under “Records of Stage and Water Discharge”; same comments
apply.
PERIOD OF RECORD.—This indicates the periods for which there are published water-quality records for the
station. The periods are shown separately for records of parameters measured daily or continuously and those
measured less than daily. For those measured daily or continuously, periods of record are given for the individual
parameters.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
19
INSTRUMENTATION.—Information on instrumentation is given only if a water temperature sensor temperature
record, sediment pumping sampler, or other sampling device is in operation at a station.
REMARKS.—Remarks provide added information pertinent to the collection, analysis, or computation of the
records.
COOPERATION.—Records provided by a cooperating organization or obtained for the USGS by a cooperating
organization are identified here.
EXTREMES.—Maximums and minimums are given only for parameters measured daily or more frequently. None
are given for parameters measured weekly or less frequently because the true maximums or minimums may not
have been sampled. Extremes, when given, are provided for the period of record and for the current water year.
REVISIONS.—If errors in water-quality records are discovered after publication, appropriate updates are made to
the Water-Quality File in the USGS’s computerized data system, WATSTORE, and subsequently by monthly
transfer of update transactions to the U.S. Environmental Protection Agency's (USEPA) STORET system. Because
the usual volume of updates makes it impractical to document individual changes in the State data-report series or
elsewhere, potential users of USGS water-quality data are encouraged to obtain all required data from the
appropriate computer file to ensure the most recent updates.
The surface-water-quality records for partial-record stations and miscellaneous sampling sites are
published in separate tables following the table of discharge measurements at miscellaneous sites.
No descriptive statements are given for these records. Each station is published with its own station number
and name in the regular downstream-order sequence.
Codes
Printed output
Remarks
Sample Type
1
Spike
2
Blank (field)
7
Replicate (concurrent)
9
Environmental
Sample Purpose
20.0
National Stream-Quality Accounting Network (NASQAN)
40.0
Arizona Department of Environmental Quality
Remark Code
e or E
Estimated value.
>
Actual value is known to be greater than value shown.
<
Actual value is known to be less than value shown.
M
Presence of material verified, but not quantified.
V
Analyte was detected in both the environmental sample and the
associated blanks.
Value qualifier code
k
Results based upon colony counts outside the acceptable range.
v
Analyte detected in laboratory blank.
20
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Dissolved Trace-Element Concentrations
Note: Traditionally, dissolved trace-element concentrations have been reported at the microgram per liter
(µg/L) level. Recent evidence, mostly from large rivers, indicates that actual dissolved-phase
concentrations for a number of trace elements are within the range of 10s to 100s of nanograms per
liter (ng/L). Data above the µg/L level should be viewed with caution. Such data may actually
represent elevated environmental concentrations from natural or human causes; however, these data
could reflect contamination introduced during sampling, processing, or analysis. To confidently
produce dissolved trace-element data with insignificant contamination, the USGS began using new
trace-element protocols at some stations in water year 1994.
Change in National Trends Network Procedures
Note: Sample handling procedures at all National Trends Network stations were changed substantially on
January 11, 1994, in order to reduce contamination from the sample shipping container. The data
for samples before and after that date are different and not directly comparable. A tabular summary
of the differences based on a special intercomparison study is available from the NADP Program
Office, Illinois State Water Survey, 2204 Griffith Drive, Champaign, IL 61820–7495
(217-333-7873).
Quality-Control Data
Data generated from quality-control (QC) samples are a requisite for evaluating the quality of the
sampling and processing techniques as well as data from the actual samples themselves. Without QC data,
environmental sample data cannot be adequately interpreted because the errors associated with the sample
data are unknown. The various types of QC samples collected by this District are described in the
following section. Procedures have been established for the storage of water-quality-control data within the
USGS. These procedures allow for storage of all derived QC data and are identified so that they can be
related to corresponding environmental samples.
BLANK SAMPLES—Blank samples are collected and analyzed to ensure that environmental samples have not been
contaminated by the overall data-collection process. The blank solution used to develop specific types of blank
samples is a solution that is free of the analytes of interest. Any measured value signal in a blank samples for an
analyte (a specific component measured in a chemical analysis) that was absent in the blank solution is believed to
be due to contamination. There are many types of blank samples possible, each designed to segregate a different
part of the overall data-collection process. The types of blank samples collected in this District are:
•
•
•
•
•
Source solution blank – a blank solution that is transferred to a sample bottle in an area of the office
laboratory with an atmosphere that is relatively clean and protected with respect to target analytes.
Ambient blank – a blank solution that is put in the same type of bottle used for an environmental sample, kept
with the set of sample bottles before sample collection, and opened at the site and exposed to the ambient
conditions.
Field blank – a blank solution that is subjected to all aspects of sample collection, field processing
preservation, transportation, and laboratory handling as an environmental sample.
Trip blank – a blank solution that is put in the same type of bottle used for an environmental sample and kept
with the set of sample bottles before and after sample collection.
Equipment blank – a blank solution that is processed through all equipment used for collecting and
processing an environmental sample (similar to a field blank but normally done in the more controlled
conditions of the office.)
Sampler blank – a blank solution that is poured or pumped through the same field sampler used for
collecting an environmental sample.
Pump blank – a blank solution that is processed through the same pump-and-tubing system used for
collecting an environmental sample.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
21
Standpipe blank – a blank solution that is poured from the containment vessel (stand-pipe) before the
pump is inserted to obtain the pump blank.
Filter blank – a blank solution that is filtered in the same manner and through the same filter apparatus
used for collecting an environmental sample.
Splitter blank - a blank solution that is mixed and separated using a field splitter in the same manner and
through the same apparatus used for collecting an environmental sample.
Preservation blank – a blank solution that is treated with the sampler preservatives used for an
environmental sample.
Canister blank – a blank solution that is taken directly from a stainless steel canister just before the VOC
sampler is submerged to obtain a field blank sample.
REFERENCE SAMPLES—Reference material is a solution or material prepared by a laboratory whose
composition is certified for one or more properties so that it can be used to assess a measurement method. Samples
of reference material are submitted for analysis to ensure that an analytical method is accurate for the known
properties of the reference material. Generally, the selected reference material properties are similar to the
environmental sample properties.
REPLICATE SAMPLES—Replicate samples are a set of environmental samples collected in a manner such that the
samples are thought to be essentially identical in composition. Replicate is the general case for which a duplicate is
the special case consisting of two samples. Replicate samples are collected and analyzed to establish the amount of
variability in the data contributed by some part of the collection and analytical process. There are many types of
replicate samples possible, each of which may yield slightly different results in a dynamic hydrologic setting, such
as a flowing stream. The types of replicate samples collected in this district are:
•
Concurrent sample – a type of replicate sample in which the samples are collected simultaneously with two
or more samplers or by using one sampler and alternating collection of samples into two or more compositing
containers.
•
Sequential sample – a type of replicate sample in which the samples are collected one after the other,
typically over a short time.
•
Split sample – a type of replicate sample in which a sample is split into subsamples contemporaneous in time
and space.
SPIKE SAMPLES—Spike samples are samples to which known quantities of a solution with one or more
well-established analyte concentrations have been added. These samples are analyzed to determine the extent of
matrix interference or degradation on the analyte concentration during sample processing and analysis.
•
Concurrent sample – a type of spike sample that is collected at the same time with the same sampling and
compositing devices then spiked with the same spike solution containing laboratory-certified concentrations of
selected analytes.
•
Split sample – a type of spike sample in which a sample is split into subsamples contemporaneous in time and
space then spiked with the same spike solution containing laboratory-certified concentrations of selected
analytes.
Records of Ground-Water Levels
Each well is identified by means of (1) a 15-digit number that is based on latitude and longitude and
(2) a local number derived from the township-range location of the well (see “Local Well Numbers,”
page 8).
Water-level measurements are given in feet with reference to land-surface datum (lsd). Land surface
datum is a datum plane that is approximately at land surface at each well. Water levels are reported to a
tenth of a foot.
22
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Records of Ground-Water Quality
Records of ground-water quality in this report differ from other types of records in that for most
sampling sites they consist of only one set of measurements for the water year. The quality of ground water
ordinarily changes only slowly; therefore, for most general purposes, one annual sampling, or only a few
samples taken at infrequent intervals during the year, is sufficient. Frequent measurement of the same
constituents is not necessary unless one is concerned with a particular problem, such as monitoring for
trends in nitrate concentration. In the special cases where the quality of ground water may change more
rapidly, more frequent measurements are made to identify the nature of the changes.
Data Collection and Computation
The majority of the records of ground-water quality in this report were collected by Arizona
Department of Water Resources personnel. Ground-water samples are collected annually from a network
of about 150 wells and springs throughout the State. The samples are analyzed for major ions, nutrients,
and some cases, for metals if they are known to be present. The remaining records were obtained as a part
of special studies in specific areas. A number of chemical analyses are presented for some ground-water
areas but none are presented for others. As a result, the records for this year, by themselves, do not provide
a balanced view of ground-water quality Statewide. Such a view can be attained only by considering
records for this year in context with similar records obtained for these and other ground-water areas in
earlier years.
Most methods for collecting and analyzing water samples are described in the USGS TWRI
publications referred to in the “On-site Measurements and Sample Collection” and the “Laboratory
Measurements” sections in this data report. In addition, the TWRI, book 1, chap. D2, describes guidelines
for the collection and field analysis of ground-water samples for selected unstable constituents. The values
reported in this report represent water-quality conditions at the time of sampling as much as possible,
consistent with available sampling techniques and methods of analysis. These methods are consistent with
ASTM standards and generally follow ISO standards. All samples were obtained by trained personnel.
The wells sampled were pumped long enough to assure that the water collected came directly from the
aquifer and had not been exposed to the atmosphere and to the well-casing material.
Data Presentation
The records of ground-water quality are published in a section titled “Quality of Water in Selected
Wells in Ground-Water Areas in Arizona” immediately following the water-level records. Data for quality
of ground water are listed alphabetically by ground-water area, and are identified by local well number.
Each record consists of two parts—the site information table and the table containing the chemical
analyses of the ground water. The REMARK codes listed for surface-water-quality records also are
applicable to ground-water-quality records.
ACCESS TO WATSTORE DATA
The USGS is the principal Federal water-data agency and, as such, collects and disseminates about
70 percent of the water data currently being used by numerous State, local, private, and other Federal
agencies to develop and manage our water resources. As part of the USGS's program of releasing water
data to the public, a large-scale computerized system has been developed for the storage and retrieval of
water data collected through its activities. The National Water Data Storage and Retrieval System
(WATSTORE) was established in 1972 to provide an effective and efficient means for the processing and
maintenance of water data collected through the activities of the USGS and to facilitate release of the data
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
23
to the public. A variety of useful products, ranging from data tables to complex statistical analyses such as
log-Pearson Type III, can be produced using WATSTORE. The system resides on the central computer
facilities of the USGS at its National Center in Reston, Virginia, and consists of related files and databases.
• Station Header File—Contains descriptive information on more than 440,000 sites throughout the
United States and its territories where the USGS collects or has collected data.
• Daily Value File—Contains more than 220 million daily values of streamflows, stages, reservoir
contents, water temperatures, specific conductances, sediment concentrations, sediment discharges,
and ground-water levels.
• Peak Flow File—Contains approximately 500,000 maximum (peak) streamflow and gage-height
values at surface-water sites.
• Water Quality File—Contains approximately 2 million analyses of water samples that describe the
chemical, physical, biological, and radiochemical characteristics of surface water and ground water.
• Ground-Water Site Inventory Database—Contains inventory data for more than 900,000 wells,
springs, and other sources of ground water. The data includes site location, geohydrologic
characteristics, well-construction history, and one-time field measurements, such as water
temperature.
In 1976, the USGS opened WATSTORE to the public for direct access. The signing of a Memorandum
of Agreement with the Survey is required to obtain direct access to WATSTORE. The system can be
accessed either synchronously or asynchronously. The requester will be expected to pay all computer costs
that are incurred. Direct access may be obtained by contacting:
U.S. Geological Survey
National Water Data Exchange
421 USGS National Center
Reston, VA 20192
DEFINITION OF TERMS
cover 1 acre to a depth of 1 foot and equivalent to
43,560 cubic feet, 325,851 gallons, or 1,233 cubic
meters. (See also “Annual runoff”)
Specialized technical terms related to
streamflow, water-quality, and other hydrologic
data, as used in this report, are defined below.
Definitions of common terms such as algae, water
level, and precipitation are given in standard
dictionaries. Not all terms defined in this
alphabetical list apply to every State. See also table
for converting inch/pound units to International
System (SI) units on the inside of the back cover.
Adenosine triphosphate (ATP) is an organic,
phosphate-rich compound important in the transfer of
energy in organisms. Its central role in living cells
makes ATP an excellent indicator of the presence of
living material in water. A measurement of ATP
therefore provides a sensitive and rapid estimate of
biomass. ATP is reported in micrograms per liter.
Acid neutralizing capacity (ANC) is the equivalent
sum of all bases or base-producing materials, solutes
plus particulates, in an aqueous system that can be
titrated with acid to an equivalence point. This term
designates titration of an “unfiltered” sample
(formerly reported as alkalinity).
Algal growth potential (AGP) is the maximum algal
dry weight biomass that can be produced in a natural
water sample under standardized laboratory
conditions. The growth potential is the algal biomass
present at stationary phase and is expressed as
milligrams dry weight of algae produced per liter of
sample. (See also “Biomass” and “Dry weight”)
Acre-foot (AC-FT, acre-ft) is a unit of volume,
commonly used to measure quantities of water used or
stored, equivalent to the volume of water required to
Alkalinity is the capacity of solutes in an aqueous
system to neutralize acid. This term designates
titration of a “filtered” sample.
24
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Annual runoff is the total quantity of water that is
discharged (“runs off”) from a drainage basin in a
year. Data reports may present annual runoff data as
volumes in acre-feet, as discharges per unit of
drainage area in cubic feet per second per square mile,
or as depths of water on the drainage basin in inches.
Annual 7-day minimum is the lowest mean value for
any 7-consecutive-day period in a year. Annual 7-day
minimum values are reported herein for the calendar
year and the water year (October 1 through
September 30). Most low-flow frequency analyses use
a climatic year (April 1-March 31), which tends to
prevent the low-flow period from being artificially
split between adjacent years. The date shown in the
summary statistics table is the initial date of the 7-day
period. (This value should not be confused with the
7-day, 10-year low-flow statistic.)
Aroclor is the registered trademark for a group of
poly-chlorinated biphenyls that were manufactured by
the Monsanto Company prior to 1976. Aroclors are
assigned specific 4-digit reference numbers dependent
upon molecular type and degree of substitution of the
biphenyl ring hydrogen atoms by chlorine atoms.
The first two digits of a numbered aroclor represent
the molecular type, and the last two digits represent
the percentage weight of the hydrogen-substituted
chlorine.
Artificial substrate is a device that is purposely placed
in a stream or lake for colonization of organisms. The
artificial substrate simplifies the community structure
by standardizing the substrate from which each sample
is collected. Examples of artificial substrates are
basket samplers (made of wire cages filled with clean
streamside rocks) and multiplate samplers (made of
hardboard) for benthic organism collection, and
Plexiglas strips for periphyton collection. (See also
“Substrate”)
Ash mass is the mass or amount of residue present after
the residue from the dry mass determination has been
ashed in a muffle furnace at a temperature of 500° C
for 1 hour. Ash mass of zooplankton and
phytoplankton is expressed in grams per cubic meter
(g/m3), and periphyton and benthic organisms in
grams per square meter (g/m2). (See also “Biomass”
and “Dry mass”)
Aspect is the direction toward which a slope faces with
respect to the compass.
Bacteria are microscopic unicellular organisms,
typically spherical, rodlike, or spiral and threadlike in
shape, often clumped into colonies. Some bacteria
cause disease, whereas others perform an essential role
in nature in the recycling of materials; for example, by
decomposing organic matter into a form available for
reuse by plants.
Bankfull stage, as used in this report, is the stage at
which a stream first overflows its natural banks
formed by floods with 1- to 3-year recurrence
intervals.
Base discharge (for peak discharge) is a discharge
value, determined for selected stations, above which
peak discharge data are published. The base discharge
at each station is selected so that an average of about
three peak flows per year will be published. (See also
“Peak flow”)
Base flow is sustained flow of a stream in the absence of
direct runoff. It includes natural and human-induced
streamflows. Natural base flow is sustained largely by
ground-water discharge.
Bedload is material in transport that is supported
primarily by the streambed. In this report, bedload is
considered to consist of particles in transit from the
bed to an elevation equal to the top of the bedload
sampler nozzle (ranging from 0.25 to 0.5 foot) that are
retained in the bedload sampler. A sample collected
with a pressure-differential bedload sampler also may
contain a component of the suspended load.
Bedload discharge (tons per day) is the rate of sediment
moving as bedload, reported as dry weight, that passes
through a cross section in a given time. NOTE:
Bedload discharge values in this report may include a
component of the suspended-sediment discharge.
A correction may be necessary when computing the
total sediment discharge by summing the bedload
discharge and the suspended-sediment discharge. (See
also “Bedload,” “Dry weight,” “Sediment,” and
“Suspended-sediment discharge”)
Bed material is the sediment mixture of which a
stream-bed, lake, pond, reservoir, or estuary bottom is
composed. (See also “Bedload” and “Sediment”)
Benthic organisms are the group of organisms
inhabiting the bottom of an aquatic environment. They
include a number of types of organisms, such as
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
bacteria, fungi, insect larvae and nymphs, snails,
clams, and crayfish. They are useful as indicators of
water quality.
Biochemical oxygen demand (BOD) is a measure of
the quantity of dissolved oxygen, in milligrams per
liter, necessary for the decomposition of organic
matter by microorganisms, such as bacteria.
Biomass is the amount of living matter present at any
given time, expressed as mass per unit area or volume
of habitat.
Biomass pigment ratio is an indicator of the total
proportion of periphyton that are autotrophic (plants).
This is also called the Autotrophic Index.
Blue-green algae (Cyanophyta) are a group of
phytoplankton organisms having a blue pigment, in
addition to the green pigment called chlorophyll.
Blue-green algae often cause nuisance conditions in
water. Concentrations are expressed as a number of
cells per milliliter (cells/mL) of sample. (See also
“Phytoplankton”)
Bottom material (See “Bed material”)
Bulk electrical conductivity is the combined electrical
conductivity of all material within a doughnut-shaped
volume surrounding an induction probe. Bulk
conductivity is affected by different physical and
chemical properties of the material including the
dissolved solids content of the pore water and
lithology and porosity of the rock.
Cells/volume refers to the number of cells of any
organism that is counted by using a microscope and
grid or counting cell. Many planktonic organisms are
multicelled and are counted according to the number
of contained cells per sample volume, and are
generally reported as cells or units per milliliter (mL)
or liter (L).
Cells volume (biovolume) determination is one of
several common methods used to estimate biomass of
algae in aquatic systems. Cell members of algae are
frequently used in aquatic surveys as an indicator of
algal production. However, cell numbers alone cannot
represent true biomass because of considerable
cell-size variation among the algal species. Cell
volume (µm3) is determined by obtaining critical cell
measurements or cell dimensions (for example, length,
width, height, or radius) for 20 to 50 cells of each
important species to obtain an average biovolume per
25
cell. Cells are categorized according to the
correspondence of their cellular shape to the nearest
geometric solid or combinations of simple solids (for
example, spheres, cones, or cylinders). Representative
formulae used to compute biovolume are as follows:
sphere 4/3 πr3 cone 1/3 πr2h
cylinder πr2h.
pi (π) is the ratio of the circumference to the diameter
of a circle; pi = 3.14159….
From cell volume, total algal biomass expressed as
biovolume (µm3/mL) is thus determined by
multiplying the number of cells of a given species by
its average cell volume and then summing these
volumes for all species.
Cfs-day (See “Cubic foot per second-day”)
Channel bars, as used in this report, are the lowest
prominent geomorphic features higher than the
channel bed.
Chemical oxygen demand (COD) is a measure of the
chemically oxidizable material in the water and
furnishes an approximation of the amount of organic
and reducing material present. The determined value
may correlate with BOD or with carbonaceous organic
pollution from sewage or industrial wastes. [See also
“Biochemical oxygen demand (BOD)”]
Clostridium perfringens (C. perfringens) is a
spore-forming bacterium that is common in the feces
of human and other warmblooded animals. Clostridial
spores are being used experimentally as an indicator of
past fecal contamination and presence of
microorganisms that are resistant to disinfection and
environmental stresses. (See also “Bacteria”)
Coliphages are viruses that infect and replicate in
coliform bacteria. They are indicative of sewage
contamination of water and of the survival and
transport of viruses in the environment.
Color unit is produced by 1 milligram per liter of
platinum in the form of the chloroplatinate ion. Color
is expressed in units of the platinum-cobalt scale.
Confined aquifer is a term used to describe an aquifer
containing water between two relatively impermeable
bound-aries. The water level in a well tapping a
confined aquifer stands above the top of the confined
aquifer and can be higher or lower than the water table
26
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
that may be present in the material above it. In some
cases, the water level can rise above the ground
surface, yielding a flowing well.
Contents is the volume of water in a reservoir or lake.
Unless otherwise indicated, volume is computed on
the basis of a level pool and does not include bank
storage.
Continuous-record station is a site where data are
collected with sufficient frequency to define daily
mean values and variations within a day.
Control designates a feature in the channel that
physically affects the water-surface elevation and
thereby determines the stage-discharge relation at the
gage. This feature may be a constriction of the
channel, a bedrock outcrop, a gravel bar, an artificial
structure, or a uniform cross section over a long reach
of the channel.
Control structure, as used in this report, is a structure
on a stream or canal that is used to regulate the flow or
stage of the stream or to prevent the intrusion of
saltwater.
Cubic foot per second (CFS, ft3/s) is the rate of
discharge representing a volume of 1 cubic foot
passing a given point in 1 second. It is equivalent to
approximately 7.48 gallons per second or
approximately 449 gallons per minute, or
0.02832 cubic meters per second. The term
“second-foot” sometimes is used synonymously with
“cubic foot per second” but is now obsolete.
Cubic foot per second-day (CFS-DAY, Cfs-day,
[(ft3/s)/d]) is the volume of water represented by a flow
of 1 cubic foot per second for 24 hours. It is equivalent
to 86,400 cubic feet, 1.98347 acre-feet,
646,317 gallons, or 2,446.6 cubic meters. The daily
mean discharges reported in the daily value data tables
are numerically equal to the daily volumes in cfs-days,
and the totals also represent volumes in cfs-days.
Cubic foot per second per square mile [CFSM,
(ft3/s)/mi2] is the average number of cubic feet of
water flowing per second from each square mile of
area drained, assuming the runoff is distributed
uniformly in time and area. (See also “Annual runoff”)
Daily mean suspended-sediment concentration is the
time-weighted concentration of suspended sediment
passing a stream cross section during a 24-hour day.
(See also “Sediment” and “Suspended-sediment
concentration”)
Daily-record station is a site where data are collected
with sufficient frequency to develop a record of one or
more data values per day. The frequency of data
collection can range from continuous recording to
periodic sample or data collection on a daily or
near-daily basis.
Data collection platform (DCP) is an electronic
instrument that collects, processes, and stores data
from various sensors, and transmits the data by
satellite data relay, line-of-sight radio, and/or landline
telemetry.
Data logger is a microprocessor-based data acquisition
system designed specifically to acquire, process, and
store data. Data are usually downloaded from onsite
data loggers for entry into office data systems.
Datum is a surface or point relative to which
measurements of height and/or horizontal position are
reported. A vertical datum is a horizontal surface used
as the zero point for measurements of gage height,
stage, or elevation; a horizontal datum is a reference
for positions given in terms of latitude-longitude, State
Plane coordinates, or UTM coordinates. (See also
“Gage datum,” “Land-surface datum,” “National
Geodetic Vertical Datum of 1929,” and “North
American Vertical Datum of 1988”)
Diatoms are the unicellular or colonial algae having a
siliceous shell. Their concentrations are expressed as
number of cells per milliliter (cells/mL) of sample.
(See also “Phytoplankton”)
Diel is of or pertaining to a 24-hour period of time; a
regular daily cycle.
Discharge, or flow, is the rate that matter passes through
a cross section of a stream channel or other water body
per unit of time. The term commonly refers to the
volume of water (including, unless otherwise stated,
any sediment or other constituents suspended or
dissolved in the water) that passes a cross section in a
stream channel, canal, pipeline, etc., within a given
period of time (cubic feet per second). Discharge also
can apply to the rate at which constituents, such as
suspended sediment, bedload, and dissolved or
suspended chemicals, pass through a cross section, in
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
which cases the quantity is expressed as the mass of
constituent that passes the cross section in a given
period of time (tons per day).
Dissolved refers to that material in a representative
water sample that passes through a 0.45-micrometer
membrane filter. This is a convenient operational
definition used by Federal and State agencies that
collect water-quality data. Determinations of
“dissolved” constituent concentrations are made on
sample water that has been filtered.
Dissolved oxygen (DO) is the molecular oxygen
(oxygen gas) dissolved in water. The concentration in
water is a function of atmospheric pressure,
temperature, and dissolved-solids concentration of the
water. The ability of water to retain oxygen decreases
with increasing temperature or dissolved-solids
concentration. Photosynthesis and respiration by
plants commonly cause diurnal variations in
dissolved-oxygen concentration in water from some
streams.
Dissolved-solids concentration in water is the quantity
of dissolved material in a sample of water. It is
determined either analytically by the
“residue-on-evaporation” method, or mathematically
by totaling the concentrations of individual
constituents reported in a comprehensive chemical
analysis. During the analytical determination, the
bicarbonate (generally a major dissolved component
of water) is converted to carbonate. In the
mathematical calculation, the bicarbonate value, in
milligrams per liter, is multiplied by 0.4926 to convert
it to carbonate. Alternatively, alkalinity concentration
(as mg/L CaCO3) can be converted to carbonate
concentration by multiplying by 0.60.
Diversity index (H) (Shannon index) is a numerical
expression of evenness of distribution of aquatic
organisms. The formula for diversity index is:
s
ni
n
log 2 i ,
n
i ≈1 n
d = −∑
where ni is the number of individuals per taxon, n is
the total number of individuals, and s is the total
number of taxa in the sample of the community. Index
values range from zero, when all the organisms in the
sample are the same, to some positive number, when
some or all of the organisms in the sample are
different.
27
Drainage area of a stream at a specific location is that
area upstream from the location, measured in a
horizontal plane, that has a common outlet at the site
for its surface runoff from precipitation that normally
drains by gravity into a stream. Drainage areas given
herein include all closed basins, or noncontributing
areas, within the area unless otherwise specified.
Drainage basin is a part of the Earth’s surface that
contains a drainage system with a common outlet for
its surface runoff. (See “Drainage area”)
Dry mass refers to the mass of residue present after
drying in an oven at 105°C, until the mass remains
unchanged. This mass represents the total organic
matter, ash and sediment, in the sample. Dry-mass
values are expressed in the same units as ash mass.
(See also “Ash mass,” “Biomass,” and “Wet mass”)
Dry weight refers to the weight of animal tissue after it
has been dried in an oven at 65°C until a constant
weight is achieved. Dry weight represents total organic
and inorganic matter in the tissue. (See also “Wet
weight”)
Embeddedness is the degree to which gravel-sized and
larger particles are surrounded or enclosed by
finer-sized particles. (See also “Substrate
embeddedness class”)
Enterococcus bacteria are commonly found in the
feces of humans and other warmblooded animals.
Although some strains are ubiquitous and not related
to fecal pollution, the presence of enterococci in water
is an indication of fecal pollution and the possible
presence of enteric pathogens. Enterococcus bacteria
are those bacteria that produce pink to red colonies
with black or reddish-brown precipitate after
incubation at 41° C on mE agar (nutrient medium for
bacterial growth) and subsequent transfer to EIA
medium. Enterococci include Streptococcus feacalis,
Streptococcus feacium, Streptococcus avium, and their
variants. (See also “Bacteria”)
EPT Index is the total number of distinct taxa within
the insect orders Ephemeroptera, Plecoptera, and
Trichoptera. This index summarizes the taxa richness
within the aquatic insects that are generally considered
pollution sensitive; the index usually decreases with
pollution.
Escherichia coli (E. coli) are bacteria present in the
intestine and feces of warmblooded animals. E. coli
are a member species of the fecal coliform group of
28
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
indicator bacteria. In the laboratory, they are defined
as those bacteria that produce yellow or yellow-brown
colonies on a filter pad saturated with urea substrate
broth after primary culturing for 22 to 24 hours at
44.5°C on mTEC medium (nutrient medium for
bacterial growth). Their concentrations are expressed
as number of colonies per 100 mL of sample. (See also
“Bacteria”)
Estimated (E) concentration value is reported when an
analyte is detected and all criteria for a positive result
are met. If the concentration is less than the method
detection limit (MDL), an ‘E’ code will be reported
with the value. If the analyte is qualitatively identified
as present, but the quantitative determination is
substantially more uncertain, the National Water
Quality Laboratory will identify the result with an ‘E’
code even though the measured value is greater than
the MDL. A value reported with an ‘E’ code should be
used with caution. When no analyte is detected in a
sample, the default reporting value is the MDL
preceded by a less than sign (<).
Euglenoids (Euglenophyta) are a group of algae that are
usually free-swimming and rarely creeping. They have
the ability to grow either photosynthetically in the
light or heterotrophically in the dark. (See also
“Phytoplankton”)
Extractable organic halides (EOX) are organic
compounds that contain halogen atoms such as
chlorine. These organic compounds are semivolatile
and extractable by ethyl acetate from air-dried
streambed sediment. The ethyl acetate extract is
combusted, and the concentration is determined by
microcoulometric determination of the halides formed.
The concentration is reported as micrograms of
chlorine per gram of the dry weight of the streambed
sediment.
Fecal coliform bacteria are present in the intestines or
feces of warmblooded animals. They often are used as
indicators of the sanitary quality of the water. In the
laboratory, they are defined as all organisms that
produce blue colonies within 24 hours when incubated
at 44.5°C plus or minus 0.2°C on M-FC medium
(nutrient medium for bacterial growth). Their
concentrations are expressed as number of colonies
per 100 mL of sample. (See also “Bacteria”)
Fecal streptococcal bacteria are present in the
intestines of warmblooded animals and are ubiquitous
in the environment. They are characterized as
gram-positive, cocci bacteria that are capable of
growth in brain-heart infusion broth. In the laboratory,
they are defined as all the organisms that produce red
or pink colonies within 48 hours at 35°C plus or
minus 1.0°C on KF-streptococcus medium (nutrient
medium for bacterial growth). Their concentrations
are expressed as number of colonies per 100 mL of
sample. (See also “Bacteria”)
Fire algae (Pyrrhophyta) are free-swimming unicells
characterized by a red pigment spot. (See also
“Phytoplankton”)
Flow-duration percentiles are values on a scale of 100
that indicate the percentage of time for which a flow is
not exceeded. For example, the 90th percentile of river
flow is greater than or equal to 90 percent of all
recorded flow rates.
Gage datum is a horizontal surface used as a zero point
for measurement of stage or gage height. This surface
usually is located slightly below the lowest point of the
stream bottom such that the gage height is usually
slightly greater than the maximum depth of water.
Because the gage datum itself is not an actual physical
object, the datum usually is defined by specifying the
elevations of permanent reference marks such as
bridge abutments and survey monuments, and the gage
is set to agree with the reference marks. Gage datum is
a local datum that is maintained independently of any
national geodetic datum. However, if the elevation of
the gage datum relative to the national datum (North
American Vertical Datum of 1988 or National
Geodetic Vertical Datum of 1929) has been
determined, then the gage readings can be converted to
elevations above the national datum by adding the
elevation of the gage datum to the gage reading.
Gage height (G.H.) is the water-surface elevation, in
feet above the gage datum. If the water surface is
below the gage datum, the gage height is negative.
Gage height often is used interchangeably with the
more general term “stage,” although gage height is
more appropriate when used in reference to a reading
on a gage.
Gage values are values that are recorded, transmitted,
and/or computed from a gaging station. Gage values
typically are collected at 5-, 15-, or 30-minute
intervals.
Gaging station is a site on a stream, canal, lake, or
reservoir where systematic observations of stage,
discharge, or other hydrologic data are obtained.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Gas chromatography/flame ionization detector
(GC/FID) is a laboratory analytical method used as a
screening technique for semivolatile organic
compounds that are extractable from water in
methylene chloride.
Geomorphic channel units, as used in this report, are
fluvial geomorphic descriptors of channel shape and
stream velocity. Pools, riffles, and runs are types of
geomorphic channel units considered for National
Water-Quality Assessment (NAWQA) Program
habitat sampling.
Green algae have chlorophyll pigments similar in color
to those of higher green plants. Some forms produce
algae mats or floating “moss” in lakes. Their
concentrations are expressed as number of cells per
milliliter (cells/mL) of sample. (See also
“Phytoplankton”)
Habitat, as used in this report, includes all nonliving
(physical) aspects of the aquatic ecosystem, although
living components like aquatic macrophytes and
riparian vegetation also are usually included.
Measurements of habitat are typically made over a
wider geographic scale than are measurements of
species distribution.
Habitat quality index is the qualitative description
(level 1) of instream habitat and riparian conditions
surrounding the reach sampled. Scores range from 0 to
100 percent with higher scores indicative of desirable
habitat conditions for aquatic life. Index only
applicable to wadable streams.
Hardness of water is a physical-chemical characteristic
that commonly is recognized by the increased quantity
of soap required to produce lather. It is computed as
the sum of equivalents of polyvalent cations (primarily
calcium and magnesium) and is expressed as the
equivalent concentration of calcium carbonate
(CaCO3).
High tide is the maximum height reached by each rising
tide. The high-high and low-high tides are the higher
and lower of the two high tides, respectively, of each
tidal day. See NOAA web site:
http://www.co-ops.nos.noaa.gov/tideglos.html.
Hilsenhoff’s Biotic Index (HBI) is an indicator of
organic pollution that uses tolerance values to weigh
taxa abundances; usually increases with pollution. It is
calculated as follows:
HBI = sum
29
(n)(a)
,
N
where n is the number of individuals of each taxon, a
is the tolerance value of each taxon, and N is the total
number of organisms in the sample.
Horizontal datum (See “Datum”)
Hydrologic index stations referred to in this report are
continuous-record gaging stations that have been
selected as representative of streamflow patterns for
their respective regions. Station locations are shown
on index maps.
Hydrologic unit is a geographic area representing part
or all of a surface drainage basin or distinct hydrologic
feature as defined by the former Office of Water Data
Coordination and delineated on the State Hydrologic
Unit Maps by the USGS. Each hydrologic unit is
identified by an 8-digit number.
Inch (IN., in.), as used in this report, refers to the depth
to which the drainage area would be covered with
water if all of the runoff for a given time period were
uniformly distributed on it. (See also “Annual runoff”)
Instantaneous discharge is the discharge at a particular
instant of time. (See also “Discharge”)
Island, as used in this report, is a mid-channel bar that
has permanent woody vegetation, is flooded once a
year on average, and remains stable except during
large flood events.
Laboratory reporting level (LRL) is generally equal to
twice the yearly determined long-term method
detection level (LT-MDL). The LRL controls false
negative error. The probability of falsely reporting a
nondetection for a sample that contained an analyte at
a concentration equal to or greater than the LRL is
predicted to be less than or equal to 1 percent. The
value of the LRL will be reported with a “less than”
(<) remark code for samples in which the analyte was
not detected. The National Water Quality Laboratory
(NWQL) collects quality-control data from selected
analytical methods on a continuing basis to determine
LT-MDLs and to establish LRLs. These values are
reevaluated annually on the basis of the most current
quality-control data and, therefore, may change.
[Note: In several previous NWQL documents (NWQL
30
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Technical Memorandum 98.07, 1998), the LRL was
called the nondetection value or NDV—a term that is
no longer used.]
Land-surface datum (lsd) is a datum plane that is
approximately at land surface at each ground-water
observation well.
Latent heat flux (often used interchangeably with latent
heat-flux density) is the amount of heat energy that
converts water from liquid to vapor (evaporation) or
from vapor to liquid (condensation) across a specified
cross-sectional area per unit time. Usually expressed
in watts per square meter.
Light-attenuation coefficient, also known as the
extinction coefficient, is a measure of water clarity.
Light is attenuated according to the Lambert-Beer
equation:
I = I o e − λL ,
where Io is the source light intensity, I is the light
intensity at length L (in meters) from the source, λ is
the light-attenuation coefficient, and e is the base of
the natural logarithm. The light-attenuation coefficient
is defined as
1
I
.
λ = − log e
L
Io
Lipid is any one of a family of compounds that are
insoluble in water and that make up one of the
principal components of living cells. Lipids include
fats, oils, waxes, and steroids. Many environmental
contaminants such as organochlorine pesticides are
lipophilic.
Long-term method detection level (LT-MDL) is a
detection level derived by determining the standard
deviation of a minimum of 24 method detection limit
(MDL) spike sample measurements over an extended
period of time. LT-MDL data are collected on a
continuous basis to assess year-to-year variations in
the LT-MDL. The LT-MDL controls false positive
error. The chance of falsely reporting a concentration
at or greater than the LT-MDL for a sample that did
not contain the analyte is predicted to be less than or
equal to 1 percent.
Low tide is the minimum height reached by each falling
tide. The high-low and low-low tides are the higher
and lower of the two low tides, respectively, of each
tidal day. See NOAA web site:
http://www.co-ops.nos.noaa.gov/tideglos.html.
Macrophytes are the macroscopic plants in the aquatic
environment. The most common macrophytes are the
rooted vascular plants that usually are arranged in
zones in aquatic ecosystems and restricted in the area
by the extent of illumination through the water and
sediment deposition along the shoreline.
Mean concentration of suspended sediment (Daily
mean suspended-sediment concentration) is the
time-weighted concentration of suspended sediment
passing a stream cross section during a given time
period. (See also “Daily mean suspended-sediment
concentration” and “Suspended-sediment
concentration”)
Mean discharge (MEAN) is the arithmetic mean of
individual daily mean discharges during a specific
period. (See also “Discharge”)
Mean high or low tide is the average of all high or low
tides, respectively, over a specific period.
Mean sea level is a local tidal datum. It is the arithmetic
mean of hourly heights observed over the National
Tidal Datum Epoch. Shorter series are specified in the
name; for example, monthly mean sea level and yearly
mean sea level. In order that they may be recovered
when needed, such datums are referenced to fixed
points known as benchmarks. (See also “Datum”)
Measuring point (MP) is an arbitrary permanent
reference point from which the distance to water
surface in a well is measured to obtain water level.
Membrane filter is a thin microporous material of
specific pore size used to filter bacteria, algae, and
other very small particles from water.
Metamorphic stage refers to the stage of development
that an organism exhibits during its transformation
from an immature form to an adult form. This
developmental process exists for most insects, and the
degree of difference from the immature stage to the
adult form varies from relatively slight to pronounced,
with many intermediates. Examples of metamorphic
stages of insects are egg-larva-adult or
egg-nymph-adult.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
31
Method detection limit (MDL) is the minimum
concentration of a substance that can be measured and
reported with 99-percent confidence that the analyte
concentration is greater than zero. It is determined
from the analysis of a sample in a given matrix
containing the analyte. At the MDL concentration, the
risk of a false positive is predicted to be less than or
equal to 1 percent.
Miscellaneous site, miscellaneous station, or
miscellaneous sampling site is a site where
streamflow, sediment, and/or water-quality data or
water-quality or sediment samples are collected once,
or more often on a random or discontinuous basis to
provide better areal coverage for defining hydrologic
and water-quality conditions over a broad area in a
river basin.
Methylene blue active substances (MBAS) are
apparent detergents. The determination depends on the
formation of a blue color when methylene blue dye
reacts with synthetic anionic detergent compounds.
Most probable number (MPN) is an index of the
number of coliform bacteria that, more probably than
any other number, would give the results shown by the
laboratory examination; it is not an actual
enumeration. MPN is determined from the distribution
of gas-positive cultures among multiple inoculated
tubes.
Micrograms per gram (UG/G, µg/g) is a unit
expressing the concentration of a chemical constituent
as the mass (micrograms) of the element per unit mass
(gram) of material analyzed.
Micrograms per kilogram (UG/KG, µg/kg) is a unit
expressing the concentration of a chemical constituent
as the mass (micrograms) of the constituent per unit
mass (kilogram) of the material analyzed. One
microgram per kilogram is equivalent to 1 part per
billion.
Micrograms per liter (UG/L, µg/L) is a unit expressing
the concentration of chemical constituents in water as
mass (micrograms) of constituent per unit volume
(liter) of water. One thousand micrograms per liter is
equivalent to 1 milligram per liter. One microgram per
liter is equivalent to 1 part per billion.
Microsiemens per centimeter (US/CM, µS/cm) is a
unit expressing the amount of electrical conductivity
of a solution as measured between opposite faces of a
centimeter cube of solution at a specified temperature.
Siemens is the International System of Units
nomenclature. It is synonymous with mhos and is the
reciprocal of resistance in ohms.
Milligrams per liter (MG/L, mg/L) is a unit for
expressing the concentration of chemical constituents
in water as the mass (milligrams) of constituent per
unit volume (liter) of water. Concentration of
suspended sediment also is expressed in milligrams
per liter and is based on the mass of dry sediment per
liter of water-sediment mixture.
Minimum reporting level (MRL) is the smallest
measured concentration of a constituent that may be
reliably reported by using a given analytical method.
Multiple-plate samplers are artificial substrates of
known surface area used for obtaining benthic
invertebrate samples. They consist of a series of
spaced, hardboard plates on an eyebolt.
Nanograms per liter (NG/L, ng/L) is a unit expressing
the concentration of chemical constituents in solution
as mass (nanograms) of solute per unit volume (liter)
of water. One million nanograms per liter is equivalent
to 1 milligram per liter.
National Geodetic Vertical Datum of 1929 (NGVD of
1929) is a fixed reference adopted as a standard
geodetic datum for elevations determined by leveling.
It was formerly called “Sea Level Datum of 1929” or
“mean sea level.” Although the datum was derived
from the mean sea level at 26 tide stations, it does not
necessarily represent local mean sea level at any
particular place. See NOAA web site:
http://www.ngs.noaa.gov/faq.shtml#WhatVD29VD88.
(See “North American Vertical Datum of 1988”)
Natural substrate refers to any naturally occurring
immersed or submersed solid surface, such as a rock
or tree, upon which an organism lives. (See also
“Substrate”)
Nekton are the consumers in the aquatic environment
and consist of large free-swimming organisms that are
capable of sustained, directed mobility.
Nephelometric turbidity unit (NTU) is the
measurement for reporting turbidity that is based on
use of a standard suspension of formazin. Turbidity
measured in NTU uses nephelometric methods that
depend on passing specific light of a specific
wavelength through the sample.
32
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
North American Vertical Datum of 1988 (NAVD
1988) is a fixed reference adopted as the official
civilian vertical datum for elevations determined by
Federal surveying and mapping activities in the United
States. This datum was established in 1991 by
minimum-constraint adjustment of the Canadian,
Mexican, and United States first-order terrestrial
leveling networks.
Open or screened interval is the length of unscreened
opening or of well screen through which water enters a
well, in feet below land surface.
Organic carbon (OC) is a measure of organic matter
present in aqueous solution, suspension, or bottom
sediment. May be reported as dissolved organic
carbon (DOC), particulate organic carbon (POC), or
total organic carbon (TOC).
Organic mass or volatile mass of a living substance is
the difference between the dry mass and ash mass and
represents the actual mass of the living matter. Organic
mass is expressed in the same units as for ash mass
and dry mass. (See also “Ash mass,” “Biomass,” and
“Dry mass”)
Organism count/area refers to the number of
organisms collected and enumerated in a sample and
adjusted to the number per area habitat, usually square
meter (m2), acre, or hectare. Periphyton, benthic
organisms, and macrophytes are expressed in these
terms.
Organism count/volume refers to the number of
organisms collected and enumerated in a sample and
adjusted to the number per sample volume, usually
milliliter (mL) or liter (L). Numbers of planktonic
organisms can be expressed in these terms.
Organochlorine compounds are any chemicals that
contain carbon and chlorine. Organochlorine
compounds that are important in investigations of
water, sediment, and biological quality include certain
pesticides and industrial compounds.
Parameter code is a 5-digit number used in the USGS
computerized data system, National Water
Information System (NWIS), to uniquely identify a
specific constituent or property.
Partial-record station is a site where discrete
measurements of one or more hydrologic parameters
are obtained over a period of time without continuous
data being recorded or computed. A common example
is a crest-stage gage partial-record station at which
only peak stages and flows are recorded.
Particle size is the diameter, in millimeters (mm), of a
particle determined by sieve or sedimentation
methods. The sedimentation method utilizes the
principle of Stokes law to calculate sediment particle
sizes. Sedimentation methods (pipet,
bottom-withdrawal tube, visual-accumulation tube,
sedigraph) determine fall diameter of particles in
either distilled water (chemically dispersed) or in
native water (the river water at the time and point of
sampling).
Particle-size classification, as used in this report,
agrees with the recommendation made by the
American Geophysical Union Subcommittee on
Sediment Terminology. The classification is as
follows:
Classification
Size (mm)
Method of analysis
Clay
>0.00024 - 0.004
Sedimentation
Silt
>0.004 - 0.062
Sedimentation
Sand
>0.062 - 2.0
Sedimentation/sieve
Gravel
>2.0 - 64.0
Sieve
Cobble
>64 - 256
Manual measurement
Boulder
>256
Manual measurement
The particle-size distributions given in this report are
not necessarily representative of all particles in
transport in the stream. For the sedimentation method,
most of the organic matter is removed, and the sample
is subjected to mechanical and chemical dispersion
before analysis in distilled water. Chemical dispersion
is not used for native water analysis.
Peak flow (peak stage) is an instantaneous local
maximum value in the continuous time series of
streamflows or stages, preceded by a period of
increasing values and followed by a period of
decreasing values. Several peak values ordinarily
occur in a year. The maximum peak value in a year is
called the annual peak; peaks lower than the annual
peak are called secondary peaks. Occasionally, the
annual peak may not be the maximum value for the
year; in such cases, the maximum value occurs at
midnight at the beginning or end of the year, on the
recession from or rise toward a higher peak in the
adjoining year. If values are recorded at a discrete
series of times, the peak recorded value may be taken
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
as an approximation of the true peak, which may occur
between the recording instants. If the values are
recorded with finite precision, a sequence of equal
recorded values may occur at the peak; in this case, the
first value is taken as the peak.
Percent composition or percent of total is a unit for
expressing the ratio of a particular part of a sample or
population to the total sample or population, in terms
of types, numbers, weight, mass, or volume.
Percent shading is a measure of the amount of sunlight
potentially reaching the stream. A clinometer is used
to measure left and right bank canopy angles. These
values are added together, divided by 180, and
multiplied by 100 to compute percentage of shade.
Periodic-record station is a site where stage, discharge,
sediment, chemical, physical, or other hydrologic
measurements are made one or more times during a
year but at a frequency insufficient to develop a daily
record.
Periphyton is the assemblage of microorganisms
attached to and living upon submerged solid surfaces.
Although primarily consisting of algae, they also
include bacteria, fungi, protozoa, rotifers, and other
small organisms. Periphyton are useful indicators of
water quality.
Pesticides are chemical compounds used to control
undesirable organisms. Major categories of pesticides
include insecticides, miticides, fungicides, herbicides,
and rodenticides.
pH of water is the negative logarithm of the
hydrogen-ion activity. Solutions with pH less than 7.0
standard units are termed “acidic,” and solutions with
a pH greater than 7.0 are termed “basic.” Solutions
with a pH of 7.0 are neutral. The presence and
concentration of many dissolved chemical constituents
found in water are affected, in part, by the
hydrogen-ion activity of water. Biological processes
including growth, distribution of organisms, and
toxicity of the water to organisms also are affected, in
part, by the hydrogen-ion activity of water.
Phytoplankton is the plant part of the plankton. They
are usually microscopic, and their movement is subject
to the water currents. Phytoplankton growth is
dependent upon solar radiation and nutrient
substances. Because they are able to incorporate as
well as release materials to the surrounding water, the
phytoplankton have a profound effect upon the quality
33
of the water. They are the primary food producers in
the aquatic environment and commonly are known as
algae. (See also “Plankton”)
Picocurie (PC, pCi) is one trillionth (1 x 10-12) of the
amount of radioactive nuclide represented by a curie
(Ci). A curie is the quantity of radioactive nuclide that
yields 3.7 x 1010 radioactive disintegrations per
second (dps). A picocurie yields 0.037 dps, or 2.22
dpm (disintegrations per minute).
Plankton is the community of suspended, floating, or
weakly swimming organisms that live in the open
water of lakes and rivers. Concentrations are expressed
as a number of cells per milliliter (cells/mL) of
sample.
Polychlorinated biphenyls (PCBs) are industrial
chemicals that are mixtures of chlorinated biphenyl
compounds having various percentages of chlorine.
They are similar in structure to organochlorine
insecticides.
Polychlorinated naphthalenes (PCNs) are industrial
chemicals that are mixtures of chlorinated naphthalene
compounds. They have properties and applications
similar to polychlorinated biphenyls (PCBs) and have
been identified in commercial PCB preparations.
Pool, as used in this report, is a small part of a stream
reach with little velocity, commonly with water deeper
than surrounding areas.
Primary productivity is a measure of the rate at which
new organic matter is formed and accumulated
through photo-synthetic and chemosynthetic activity
of producer organisms (chiefly, green plants). The rate
of primary production is estimated by measuring the
amount of oxygen released (oxygen method) or the
amount of carbon assimilated (carbon method) by the
plants.
Primary productivity (carbon method) is expressed as
milligrams of carbon per area per unit time
[mg C/(m2/time)] for periphyton and macrophytes or per
volume [mg C/(m3/time)] for phytoplankton. The carbon
method defines the amount of carbon dioxide
consumed as measured by radioactive carbon
(carbon-14). The carbon-14 method is of greater
sensitivity than the oxygen light and dark bottle
method and is preferred for use with unenriched water
34
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
samples. Unit time may be either the hour or day,
depending on the incubation period. (See also
“Primary productivity”)
Primary productivity (oxygen method) is expressed as
milligrams of oxygen per area per unit time
[mg O/(m2/time)] for periphyton and macrophytes or
per volume [mg O/(m3/time)] for phytoplankton. The
oxygen method defines production and respiration
rates as estimated from changes in the measured
dissolved-oxygen concentration. The oxygen light and
dark bottle method is preferred if the rate of primary
production is sufficient for accurate measurements to
be made within 24 hours. Unit time may be either the
hour or day, depending on the incubation period. (See
also “Primary productivity”)
Radioisotopes are isotopic forms of elements that
exhibit radioactivity. Isotopes are varieties of a
chemical element that differ in atomic weight but are
very nearly alike in chemical properties. The
difference arises because the atoms of the isotopic
forms of an element differ in the number of neutrons
in the nucleus; for example, ordinary chlorine is a
mixture of isotopes having atomic weights of 35 and
37, and the natural mixture has an atomic weight of
about 35.453. Many of the elements similarly exist as
mixtures of isotopes, and a great many new isotopes
have been produced in the operation of nuclear devices
such as the cyclotron. There are 275 isotopes of the 81
stable elements, in addition to more than 800
radioactive isotopes.
Reach, as used in this report, is a length of stream that is
chosen to represent a uniform set of physical,
chemical, and biological conditions within a segment.
It is the principal sampling unit for collecting physical,
chemical, and biological data.
Recoverable from bed (bottom) material is the
amount of a given constituent that is in solution after a
representative sample of bottom material has been
digested by a method (usually using an acid or mixture
of acids) that results in dissolution of readily soluble
substances. Complete dissolution of all bottom
material is not achieved by the digestion treatment and
thus the determination represents less than the total
amount (that is, less than 95 percent) of the constituent
in the sample. To achieve comparability of analytical
data, equivalent digestion procedures would be
required of all laboratories performing such analyses
because different digestion procedures are likely to
produce different analytical results. (See also “Bed
material”)
Recurrence interval, also referred to as return period, is
the average time, usually expressed in years, between
occurrences of hydrologic events of a specified type
(such as exceedances of a specified high flow or
nonexceedance of a specified low flow). The terms
“return period” and “recurrence interval” do not imply
regular cyclic occurrence. The actual times between
occurrences vary randomly, with most of the times
being less than the average and a few being
substantially greater than the average. For example,
the 100-year flood is the flow rate that is exceeded by
the annual maximum peak flow at intervals whose
average length is 100 years (that is, once in 100 years,
on average); almost two-thirds of all exceedances of
the 100-year flood occur less than 100 years after the
previous exceedance, half occur less than 70 years
after the previous exceedance, and about one-eighth
occur more than 200 years after the previous
exceedance. Similarly, the 7-day, 10-year low flow
(7Q10) is the flow rate below which the annual
minimum 7-day-mean flow dips at intervals whose
average length is 10 years (that is, once in 10 years, on
average); almost two-thirds of the nonexceedances of
the 7Q10 occur less than 10 years after the previous
nonexceedance, half occur less than 7 years after, and
about one-eighth occur more than 20 years after the
previous nonexceedance. The recurrence interval for
annual events is the reciprocal of the annual
probability of occurrence. Thus, the 100-year flood
has a 1-percent chance of being exceeded by the
maximum peak flow in any year, and there is a
10-percent chance in any year that the annual
minimum 7-day-mean flow will be less than the 7Q10.
Replicate samples are a group of samples collected in a
manner such that the samples are thought to be
essentially identical in composition.
Return period (See “Recurrence interval”)
Riffle, as used in this report, is a shallow part of the
stream where water flows swiftly over completely or
partially submerged obstructions to produce surface
agitation.
River mileage is the curvilinear distance, in miles,
measured upstream from the mouth along the
meandering path of a stream channel in accordance
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
with Bulletin No. 14 (October 1968) of the Water
Resources Council and typically is used to denote
location along a river.
Run, as used in this report, is a relatively shallow part of
a stream with moderate velocity and little or no surface
turbulence.
Runoff is the quantity of water that is discharged (“runs
off”) from a drainage basin during a given time period.
Runoff data may be presented as volumes in acre-feet,
as mean discharges per unit of drainage area in cubic
feet per second per square mile, or as depths of water
on the drainage basin in inches. (See also “Annual
runoff”)
Sea level, as used in this report, refers to one of the two
commonly used national vertical datums (NGVD 1929
or NAVD 1988). See separate entries for definitions of
these datums.
Sediment is solid material that originates mostly from
disintegrated rocks; when transported by, suspended
in, or deposited from water, it is referred to as “fluvial
sediment.” Sediment includes chemical and
biochemical precipitates and decomposed organic
material, such as humus. The quantity, characteristics,
and cause of the occurrence of sediment in streams are
affected by environmental and land-use factors. Some
major factors are topography, soil characteristics, land
cover, and depth and intensity of pre-cipitation.
35
Sodium adsorption ratio (SAR) is the expression of
relative activity of sodium ions in exchange reactions
within soil and is an index of sodium or alkali hazard
to the soil. Sodium hazard in water is an index that can
be used to evaluate the suitability of water for
irrigating crops.
Soil heat flux (often used interchangeably with soil
heat-flux density) is the amount of heat energy that
moves by conduction across a specified
cross-sectional area of soil per unit time and goes to
heating (or cooling) the soil. Usually expressed in
watts per square meter.
Soil-water content is the water lost from the soil upon
drying to constant mass at 105 ° C; expressed either as
mass of water per unit mass of dry soil or as the
volume of water per unit bulk volume of soil.
Specific electrical conductance (conductivity) is a
measure of the capacity of water (or other media) to
conduct an electrical current. It is expressed in
microsiemens per centimeter at 25° C. Specific
electrical conductance is a function of the types and
quantity of dissolved substances in water and can be
used for approximating the dissolved-solids content of
the water. Commonly, the concentration of dissolved
solids (in milligrams per liter) is from 55 to 75percent
of the specific conductance (in microsiemens). This
relation is not constant from stream to stream, and it
may vary in the same source with changes in the
composition of the water.
Sensible heat flux (often used interchangeably with
latent sensible heat-flux density) is the amount of heat
energy that moves by turbulent transport through the
air across a specified cross-sectional area per unit time
and goes to heating (cooling) the air. Usually
expressed in watts per square meter.
Stable isotope ratio (per MIL) is a unit expressing the
ratio of the abundance of two radioactive isotopes.
Isotope ratios are used in hydrologic studies to
determine the age or source of specific water, to
evaluate mixing of different water, as an aid in
determining reaction rates, and other chemical or
hydrologic processes.
Seven-day, 10-year low flow (7Q10) is the discharge
below which the annual 7-day minimum flow falls in 1
year out of 10 on the long-term average. The
recurrence interval of the 7Q10 is 10 years; the chance
that the annual 7-day minimum flow will be less than
the 7Q10 is 10 percent in any given year. (See also
“Annual 7-day minimum” and “Recurrence interval”)
Stage (See “Gage height”)
Shelves, as used in this report, are streambank features
extending nearly horizontally from the flood plain to
the lower limit of persistent woody vegetation.
Stage-discharge relation is the relation between the
water-surface elevation, termed stage (gage height),
and the volume of water flowing in a channel per unit
time.
Streamflow is the discharge that occurs in a natural
channel. Although the term “discharge” can be applied
to the flow of a canal, the word “streamflow” uniquely
describes the discharge in a surface stream course. The
36
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
term “streamflow” is more general than “runoff” as
streamflow may be applied to discharge whether or not
it is affected by diversion or regulation.
Substrate is the physical surface upon which an
organism lives.
Substrate embeddedness class is a visual estimate of
riffle streambed substrate larger than gravel that is
surrounded or covered by fine sediment (<2mm, sand
or finer). Below are the class categories expressed as
the percentage covered by fine sediment:
0
< no gravel or larger substrate
3
26–50%
1
> 75%
4
5–25%
2
51–75%
5
< 5%
Surface area of a lake is that area (acres) encompassed
by the boundary of the lake as shown on USGS
topographic maps, or other available maps or
photographs. Because surface area changes with lake
stage, surface areas listed in this report represent those
determined for the stage at the time the maps or
photographs were obtained.
Surficial bed material is the upper surface (0.1 to
0.2 foot) of the bed material that is sampled using U.S.
Series Bed-Material Samplers.
Suspended (as used in tables of chemical analyses)
refers to the amount (concentration) of undissolved
material in a water-sediment mixture. It is defined
operationally as the material retained on a
0.45-micrometer filter.
Suspended, recoverable is the amount of a given
constituent that is in solution after the part of a
representative suspended water-sediment sample that
is retained on a 0.45-micrometer membrane filter has
been digested by a method (usually using a dilute acid
solution) that results in dissolution of only readily
soluble substances. Complete dissolution of all the
particulate matter is not achieved by the digestion
treatment, and thus the determination represents
something less than the “total” amount (that is, less
than 95 percent) of the constituent present in the
sample. To achieve comparability of analytical data,
equivalent digestion procedures are required of all
laboratories performing such analyses because
different digestion procedures are likely to produce
different analytical results. Determinations of
“suspended, recoverable” constituents are made either
by directly analyzing the suspended material collected
on the filter or, more commonly, by difference, on the
basis of determinations of (1) dissolved and (2) total
recoverable concentrations of the constituent. (See
also “Suspended”)
Suspended sediment is the sediment maintained in
suspension by the upward components of turbulent
currents or that exists in suspension as a colloid. (See
also “Sediment”)
Suspended-sediment concentration is the
velocity-weighted concentration of suspended
sediment in the sampled zone (from the water surface
to a point approximately 0.3 foot above the bed)
expressed as milligrams of dry sediment per liter of
water-sediment mixture (mg/L). The analytical
technique uses the mass of all of the sediment and the
net weight of the water-sediment mixture in a sample
to compute the suspended-sediment concentration.
(See also “Sediment” and “Suspended sediment”)
Suspended-sediment discharge (tons/d) is the rate of
sediment transport, as measured by dry mass or
volume, that passes a cross section in a given time. It is
calculated in units of tons per day as follows:
concentration (mg/L) x discharge (ft3/s) x 0.0027. (See
also “Sediment,” “Suspended sediment,” and
“Suspended-sediment concentration”)
Suspended-sediment load is a general term that refers
to a given characteristic of the material in suspension
that passes a point during a specified period of time.
The term needs to be qualified, such as “annual
suspended-sediment load” or “sand-size
suspended-sediment load,” and so on. It is not
synonymous with either suspended-sediment
discharge or concentration. (See also “Sediment”)
Suspended, total is the total amount of a given
constituent in the part of a water-sediment sample that
is retained on a 0.45-micrometer membrane filter. This
term is used only when the analytical procedure
assures measurement of at least 95 percent of the
constituent determined. Knowledge of the expected
form of the constituent in the sample, as well as the
analytical methodology used, is required to determine
when the results should be reported as “suspended,
total.” Determinations of “suspended, total”
constituents are made either by directly analyzing
portions of the suspended material collected on the
filter or, more commonly, by difference, on the basis of
determinations of (1) dissolved and (2) total
concentrations of the constituent. (See also
“Suspended”)
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Suspended solids, total residue at 105°C
concentration is the concentration of inorganic and
organic material retained on a filter, expressed as
milligrams of dry material per liter of water (mg/L).
An aliquot of the sample is used for this analysis.
Synoptic studies are short-term investigations of
specific water-quality conditions during selected
seasonal or hydro-logic periods to provide improved
spatial resolution for critical water-quality conditions.
For the period and conditions sampled, they assess the
spatial distribution of selected water-quality
conditions in relation to causative factors, such as land
use and contaminant sources.
Taxa (Species) richness is the number of species (taxa)
present in a defined area or sampling unit.
Taxonomy is the division of biology concerned with the
classification and naming of organisms. The
classification of organisms is based upon a
hierarchical scheme beginning with Kingdom and
ending with Species at the base. The higher the
classification level, the fewer features the organisms
have in common. For example, the taxonomy of a
particular mayfly, Hexagenia limbata, is the following:
Kingdom:
Animal
Phylum:
Arthropoda
Class:
Insecta
Order:
Ephemeroptera
Family:
Ephemeridae
Genus:
Hexagenia
Species:
Hexagenia limbata
Thalweg is the line formed by connecting points of
minimum streambed elevation (deepest part of the
channel).
Thermograph is an instrument that continuously
records variations of temperature on a chart. The more
general term “temperature recorder” is used in the
table descriptions and refers to any instrument that
records temperature whether on a chart, a tape, or any
other medium.
Time-weighted average is computed by multiplying the
number of days in the sampling period by the
concentrations of individual constituents for the
corresponding period and dividing the sum of the
products by the total number of days. A time-weighted
37
average represents the composition of water resulting
from the mixing of flow proportionally to the duration
of the concentration.
Tons per acre-foot (T/acre-ft) is the dry mass (tons) of a
constituent per unit volume (acre-foot) of water. It is
computed by multiplying the concentration of the
constituent, in milligrams per liter, by 0.00136.
Tons per day (T/DAY, tons/d) is a common chemical or
sediment discharge unit. It is the quantity of a
substance in solution, in suspension, or as bedload that
passes a stream section during a 24-hour period. It is
equivalent to 2,000 pounds per day, or 0.9072 metric
tons per day.
Total is the amount of a given constituent in a
representative whole-water (unfiltered) sample,
regardless of the constituent’s physical or chemical
form. This term is used only when the analytical
procedure assures measurement of at least 95 percent
of the constituent present in both the dissolved and
suspended phases of the sample. A knowledge of the
expected form of the constituent in the sample, as well
as the analytical methodology used, is required to
judge when the results should be reported as “total.”
(Note that the word “total” does double duty here,
indicating both that the sample consists of a
water-suspended sediment mixture and that the
analytical method determined at least 95 percent of the
constituent in the sample.)
Total coliform bacteria are a particular group of
bacteria that are used as indicators of possible sewage
pollution. This group includes coliforms that inhabit
the intestine of warmblooded animals and those that
inhabit soils. They are characterized as aerobic or
facultative anaerobic, gram-negative,
nonspore-forming, rod-shaped bacteria that ferment
lactose with gas formation within 48 hours at 35° C.
In the laboratory, these bacteria are defined as all the
organisms that produce colonies with a golden-green
metallic sheen within 24 hours when incubated at
35° C plus or minus 1.0° C on M-Endo medium
(nutrient medium for bacterial growth). Their
concentrations are expressed as number of colonies
per 100 milliliters of sample. (See also “Bacteria”)
Total discharge is the quantity of a given constituent,
measured as dry mass or volume, that passes a stream
cross section per unit of time. When referring to
constituents other than water, this term needs to be
qualified, such as “total sediment discharge,” “total
chloride discharge,” and so on.
38
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Total in bottom material is the amount of a given
constituent in a representative sample of bottom
material. This term is used only when the analytical
procedure assures measurement of at least 95 percent
of the constituent determined. A knowledge of the
expected form of the constituent in the sample, as well
as the analytical methodology used, is required to
judge when the results should be reported as “total in
bottom material.”
Total length (fish) is the straight-line distance from the
anterior point of a fish specimen’s snout, with the
mouth closed, to the posterior end of the caudal (tail)
fin, with the lobes of the caudal fin squeezed together.
Total load refers to all of a constituent in transport.
When referring to sediment, it includes suspended
load plus bed load.
Total organism count is the number of organisms
collected and enumerated in any particular sample.
(See also “Organism count/volume”)
Total recoverable is the amount of a given constituent
in a whole-water sample after a sample has been
digested by a method (usually using a dilute acid
solution) that results in dissolution of only readily
soluble substances. Complete dissolution of all
particulate matter is not achieved by the digestion
treatment, and thus the determination represents
something less than the “total” amount (that is, less
than 95 percent) of the constituent present in the
dissolved and suspended phases of the sample. To
achieve comparability of analytical data for
whole-water samples, equivalent digestion procedures
are required of all laboratories performing such
analyses because different digestion procedures may
produce different analytical results.
Total sediment discharge is the mass of
suspended-sediment plus bed-load transport, measured
as dry weight, that passes a cross section in a given
time. It is a rate and is reported as tons per day. (See
also “Bedload,” “Bedload discharge,” “Sediment,”
“Suspended sediment,” and “Suspended-sediment
concentration”)
Total sediment load or total load is the sediment in
transport as bedload and suspended-sediment load.
The term may be qualified, such as “annual
suspended-sediment load” or “sand-size
suspended-sediment load,” and so on. It differs from
total sediment discharge in that load refers to the
material, whereas discharge refers to the quantity of
material, expressed in units of mass per unit time. (See
also “Sediment,” “Suspended-sediment load,” and
“Total load”)
Transect, as used in this report, is a line across a stream
perpendicular to the flow and along which
measurements are taken, so that morphological and
flow characteristics along the line are described from
bank to bank. Unlike a cross section, no attempt is
made to determine known elevation points along the
line.
Turbidity is the reduction in the transparency of a
solution due to the presence of suspended and some
dissolved substances. The measurement technique
records the collective optical properties of the solution
that cause light to be scattered and attenuated rather
than transmitted in straight lines; the higher the
intensity of scattered or attenuated light, the higher the
value of the turbidity. Turbidity is expressed in
nephelometric turbidity units (NTU). Depending on
the method used, the turbidity units as NTU can be
defined as the intensity of light of a specified
wavelength scattered or attenuated by suspended
particles or absorbed at a method specified angle,
usually 90 degrees, from the path of the incident light.
Currently approved methods for the measurement of
turbidity in the USGS include those that conform to
U.S. EPA Method 180.1, ASTM D1889-00, and ISO
7027. Measurements of turbidity by these different
methods and different instruments are unlikely to yield
equivalent values.
Ultraviolet (UV) absorbance (absorption) at 254 or
280 nanometers is a measure of the aggregate
concentration of the mixture of UV absorbing organic
materials dissolved in the analyzed water, such as
lignin, tannin, humic substances, and various aromatic
compounds. UV absorbance (absorption) at 254 or
280 nanometers is measured in UV absorption units
per centimeter of pathlength of UV light through a
sample.
Unconfined aquifer is an aquifer whose upper surface
is a water table free to fluctuate under atmospheric
pressure. (See “Water-table aquifer”)
Vertical datum (See “Datum”)
Volatile organic compounds (VOCs) are organic
compounds that can be isolated from the water phase
of a sample by purging the water sample with inert
gas, such as helium, and subsequently analyzed by gas
chromatography. Many VOCs are human-made
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
chemicals that are used and produced in the
manufacture of paints, adhesives, petroleum products,
pharmaceuticals, and refrigerants. They are often
components of fuels, solvents, hydraulic fluids, paint
thinners, and dry cleaning agents commonly used in
urban settings. VOC contamination of drinking-water
supplies is a human health concern because many are
toxic and are known or suspected human carcinogens.
Water table is that surface in a ground-water body at
which the water pressure is equal to the atmospheric
pressure.
Water-table aquifer is an unconfined aquifer within
which the water table is found.
Water year in USGS reports dealing with surface-water
supply is the 12-month period October 1 through
September 30. The water year is designated by the
calendar year in which it ends and which includes 9 of
the 12 months. Thus, the year ending September 30,
2002, is called the “2002 water year.”
WDR is used as an abbreviation for “Water-Data
Report” in the REVISED RECORDS paragraph to
refer to State annual hydrologic-data reports. (WRD
was used as an abbreviation for “Water-Resources
Data” in reports published prior to 1976.)
Weighted average is used in this report to indicate
discharge-weighted average. It is computed by
multiplying the discharge for a sampling period by the
concentrations of individual constituents for the
39
corresponding period and dividing the sum of the
products by the sum of the discharges. A
discharge-weighted average approximates the
composition of water that would be found in a
reservoir containing all the water passing a given
location during the water year after thorough mixing
in the reservoir.
Wet mass is the mass of living matter plus contained
water. (See also “Biomass” and “Dry mass”)
Wet weight refers to the weight of animal tissue or other
substance including its contained water. (See also
“Dry weight”)
WSP is used as an acronym for “Water-Supply Paper”
in reference to previously published reports.
Zooplankton is the animal part of the plankton.
Zooplankton are capable of extensive movements
within the water column and often are large enough to
be seen with the unaided eye. Zooplankton are
secondary consumers feeding upon bacteria,
phytoplankton, and detritus. Because they are the
grazers in the aquatic environment, the zooplankton
are a vital part of the aquatic food web. The
zooplankton community is dominated by small
crustaceans and rotifers. (See also “Plankton”)
40
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
TECHNIQUES OF WATER-RESOURCES INVESTIGATIONS OF
THE U.S. GEOLOGICAL SURVEY
The USGS publishes a series of manuals titled the “Techniques of Water-Resources Investigations”
that describe procedures for planning and conducting specialized work in water-resources investigations.
The material in these manuals is grouped under major subject headings called books and is further divided
into sections and chapters. For example, section A of book 3 (Applications of Hydraulics) pertains to
surface water. Each chapter then is limited to a narrow field of the section subject matter. This publication
format permits flexibility when revision or printing is required.
Manuals in the Techniques of Water-Resources Investigations series, which are listed below, are
available online at http://water.usgs.gov/pubs/twri/. Printed copies are available for sale from the USGS,
Information Services, Box 25286, Federal Center, Denver, Colorado 80225 (an authorized agent of the
Superintendent of Documents, Government Printing Office). Please telephone “1-888-ASK-USGS” for
current prices, and refer to the title, book number, section number, chapter number, and mention the “U.S.
Geological Survey Techniques of Water-Resources Investigations.” Other products can be viewed online at
http://www.usgs.gov/sales.html, or ordered by telephone or by FAX to (303)236-4693. Order forms for
FAX requests are available online at http://mac.usgs.gov/isb/pubs/forms/. Prepayment by major credit
card or by a check or money order payable to the “U.S. Geological Survey” is required.
Book 1. Collection of Water Data by Direct Measurement
Section D. Water Quality
1–D1.
Water temperature—Influential factors, field measurement, and data presentation, by H.H. Stevens, Jr., J.F.
Ficke, and G.F. Smoot: USGS–TWRI book 1, chap. D1. 1975. 65 p.
1–D2.
Guidelines for collection and field analysis of ground-water samples for selected unstable constituents, by
W.W. Wood: USGS–TWRI book 1, chap. D2. 1976. 24 p.
Book 2. Collection of Environmental Data
Section D. Surface Geophysical Methods
2–D1.
Application of surface geophysics to ground-water investigations, by A.A.R. Zohdy, G.P. Eaton, and D.R.
Mabey: USGS–TWRI book 2, chap. D1. 1974. 116 p.
2–D2.
Application of seismic-refraction techniques to hydrologic studies, by F.P. Haeni: USGS–TWRI book 2,
chap. D2. 1988. 86 p.
Section E. Subsurface Geophysical Methods
2–E1.
Application of borehole geophysics to water-resources investigations, by W.S. Keys and L.M. MacCary:
USGS–TWRI book 2, chap. E1. 1971. 126 p.
2–E2.
Borehole geophysics applied to ground-water investigations, by W.S. Keys: USGS–TWRI book 2, chap. E2.
1990. 150 p.
Section F. Drilling and Sampling Methods
2–F1.
Application of drilling, coring, and sampling techniques to test holes and wells, by Eugene Shuter and W.E.
Teasdale: USGS–TWRI book 2, chap. F1. 1989. 97 p.
Book 3. Applications of Hydraulics
Section A. Surface-Water Techniques
3–A1.
General field and office procedures for indirect discharge measurements, by M.A. Benson and Tate
Dalrymple: USGS–TWRI book 3, chap. A1. 1967. 30 p.
3–A2.
Measurement of peak discharge by the slope-area method, by Tate Dalrymple and M.A. Benson:
USGS–TWRI book 3, chap. A2. 1967. 12 p.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
41
3–A3.
Measurement of peak discharge at culverts by indirect methods, by G.L. Bodhaine: USGS–TWRI book 3,
chap. A3. 1968. 60 p.
3–A4.
Measurement of peak discharge at width contractions by indirect methods, by H.F. Matthai: USGS-TWRI
book 3, chap. A4. 1967. 44 p.
3–A5.
Measurement of peak discharge at dams by indirect methods, by Harry Hulsing: USGS–TWRI book 3, chap.
A5. 1967. 29 p.
3–A6.
General procedure for gaging streams, by R.W. Carter and Jacob Davidian: USGS–TWRI book 3, chap. A6.
1968. 13 p.
3–A7.
Stage measurement at gaging stations, by T.J. Buchanan and W.P. Somers: USGS–TWRI book 3, chap. A7.
1968. 28 p.
3–A8.
Discharge measurements at gaging stations, by T.J. Buchanan and W.P. Somers: USGS–TWRI book 3,
chap. A8. 1969. 65 p.
3–A9.
Measurement of time of travel in streams by dye tracing, by F.A. Kilpatrick and J.F. Wilson, Jr.:
USGS–TWRI book 3, chap. A9. 1989. 27 p.
3–Al0. Discharge ratings at gaging stations, by E.J. Kennedy: USGS–TWRI book 3, chap. A10. 1984. 59 p.
3–A11. Measurement of discharge by the moving-boat method, by G.F. Smoot and C.E. Novak: USGS–TWRI book
3, chap. A11. 1969. 22 p.
3–A12. Fluorometric procedures for dye tracing, Revised, by J.F. Wilson, Jr., E.D. Cobb, and F.A. Kilpatrick:
USGS–TWRI book 3, chap. A12. 1986. 34 p.
3–A13. Computation of continuous records of streamflow, by E.J. Kennedy: USGS–TWRI book 3, chap. A13. 1983.
53 p.
3–A14. Use of flumes in measuring discharge, by F.A. Kilpatrick and V.R. Schneider: USGS–TWRI book 3, chap.
A14. 1983. 46 p.
3–A15. Computation of water-surface profiles in open channels, by Jacob Davidian: USGS–TWRI book 3, chap.
A15. 1984. 48 p.
3–A16. Measurement of discharge using tracers, by F.A. Kilpatrick and E.D. Cobb: USGS–TWRI book 3, chap.
A16. 1985. 52 p.
3–A17. Acoustic velocity meter systems, by Antonius Laenen: USGS–TWRI book 3, chap. A17. 1985. 38 p.
3–A18. Determination of stream reaeration coefficients by use of tracers, by F.A. Kilpatrick, R.E. Rathbun,
Nobuhiro Yotsukura, G.W. Parker, and L.L. DeLong: USGS–TWRI book 3, chap. A18. 1989. 52 p.
3–A19. Levels at streamflow gaging stations, by E.J. Kennedy: USGS–TWRI book 3, chap. A19. 1990. 31 p.
3–A20. Simulation of soluble waste transport and buildup in surface waters using tracers, by F.A. Kilpatrick:
USGS–TWRI book 3, chap. A20. 1993. 38 p.
3–A21 Stream-gaging cableways, by C. Russell Wagner: USGS–TWRI book 3, chap. A21. 1995. 56 p.
Section B. Ground-Water Techniques
3–B1.
Aquifer-test design, observation, and data analysis, by R.W. Stallman: USGS–TWRI book 3, chap. B1.
1971. 26 p.
3–B2.
Introduction to ground-water hydraulics, a programed text for self-instruction, by G.D. Bennett:
USGS–TWRI book 3, chap. B2. 1976. 172 p.
3–B3.
Type curves for selected problems of flow to wells in confined aquifers, by J.E. Reed: USGS–TWRI book 3,
chap. B3. 1980. 106 p.
3–B4.
Regression modeling of ground-water flow, by R.L. Cooley and R.L. Naff: USGS–TWRI book 3, chap. B4.
1990. 232 p.
42
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
3–B4.
Supplement 1. Regression modeling of ground-water flow—Modifications to the computer code for
nonlinear regression solution of steady-state ground-water flow problems, by R.L. Cooley: USGS–TWRI
book 3, chap. B4. 1993. 8 p.
3–B5.
Definition of boundary and initial conditions in the analysis of saturated ground-water flow systems—An
introduction, by O.L. Franke, T.E. Reilly, and G.D. Bennett: USGS–TWRI book 3, chap. B5. 1987. 15 p.
3–B6.
The principle of superposition and its application in ground-water hydraulics, by T.E. Reilly, O.L. Franke,
and G.D. Bennett: USGS–TWRI book 3, chap. B6. 1987. 28 p.
3–B7.
Analytical solutions for one-, two-, and three-dimensional solute transport in ground-water systems with
uniform flow, by E.J. Wexler: USGS–TWRI book 3, chap. B7. 1992. 190 p.
3–B8.
System and boundary conceptualization in ground-water flow simulation, by T.E. Reilly: USGS–TWRI
book 3, chap. B8. 2001. 29 p.
Section C. Sedimentation and Erosion Techniques
3–C1.
Fluvial sediment concepts, by H.P. Guy: USGS–TWRI book 3, chap. C1. 1970. 55 p.
3–C2.
Field methods for measurement of fluvial sediment, by T.K. Edwards and G.D. Glysson: USGS–TWRI book
3, chap. C2. 1999. 89 p.
3–C3.
Computation of fluvial-sediment discharge, by George Porterfield: USGS–TWRI book 3, chap. C3. 1972.
66 p.
Book 4. Hydrologic Analysis and Interpretation
Section A. Statistical Analysis
4–A1.
Some statistical tools in hydrology, by H.C. Riggs: USGS–TWRI book 4, chap. A1. 1968. 39 p.
4–A2.
Frequency curves, by H.C. Riggs: USGS–TWRI book 4, chap. A2. 1968. 15 p.
4–A3.
Statistical methods in water resources, by D.R. Helsel and R.M. Hirsch: USGS–TWRI book 4, chap. A3.
1991. Available only online at http://water.usgs.gov/pubs/twri/twri4a3/. (Accessed August 30, 2002.)
Section B. Surface Water
4–B1.
Low-flow investigations, by H.C. Riggs: USGS–TWRI book 4, chap. B1. 1972. 18 p.
4–B2.
Storage analyses for water supply, by H.C. Riggs and C.H. Hardison: USGS–TWRI book 4, chap. B2. 1973.
20 p.
4–B3.
Regional analyses of streamflow characteristics, by H.C. Riggs: USGS–TWRI book 4, chap. B3. 1973.
15 p.
Section D. Interrelated Phases of the Hydrologic Cycle
4–D1.
Computation of rate and volume of stream depletion by wells, by C.T. Jenkins: USGS–TWRI book 4, chap.
D1. 1970. 17 p.
Book 5. Laboratory Analysis
Section A. Water Analysis
5–A1.
Methods for determination of inorganic substances in water and fluvial sediments, by M.J. Fishman and
L.C. Friedman, editors: USGS–TWRI book 5, chap. A1. 1989. 545 p.
5–A2.
Determination of minor elements in water by emission spectroscopy, by P.R. Barnett and E.C. Mallory, Jr.:
USGS–TWRI book 5, chap. A2. 1971. 31 p.
5–A3.
Methods for the determination of organic substances in water and fluvial sediments, edited by R.L.
Wershaw, M.J. Fishman, R.R. Grabbe, and L.E. Lowe: USGS–TWRI book 5, chap. A3. 1987. 80 p.
5–A4.
Methods for collection and analysis of aquatic biological and microbiological samples, by L.J. Britton and
P.E. Greeson, editors: USGS–TWRI book 5, chap. A4. 1989. 363 p.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
43
5–A5.
Methods for determination of radioactive substances in water and fluvial sediments, by L.L. Thatcher, V.J.
Janzer, and K.W. Edwards: USGS–TWRI book 5, chap. A5. 1977. 95 p.
5–A6.
Quality assurance practices for the chemical and biological analyses of water and fluvial sediments, by L.C.
Friedman and D.E. Erdmann: USGS–TWRI book 5, chap. A6. 1982. 181 p.
Section C. Sediment Analysis
5–C1.
Laboratory theory and methods for sediment analysis, by H.P. Guy: USGS–TWRI book 5, chap. C1. 1969.
58 p.
Book 6. Modeling Techniques
Section A. Ground Water
6–A1.
A modular three-dimensional finite-difference ground-water flow model, by M.G. McDonald and A.W.
Harbaugh: USGS–TWRI book 6, chap. A1. 1988. 586 p.
6–A2.
Documentation of a computer program to simulate aquifer-system compaction using the modular
finite-difference ground-water flow model, by S.A. Leake and D.E. Prudic: USGS–TWRI book 6, chap. A2.
1991. 68 p.
6–A3.
A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 1:
Model Description and User’s Manual, by L.J. Torak: USGS–TWRI book 6, chap. A3. 1993. 136 p.
6–A4.
A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 2:
Derivation of finite-element equations and comparisons with analytical solutions, by R.L. Cooley:
USGS–TWRI book 6, chap. A4. 1992. 108 p.
6–A5.
A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 3:
Design philosophy and programming details, by L.J. Torak: USGS–TWRI book 6, chap. A5. 1993. 243 p.
6–A6.
A coupled surface-water and ground-water flow model (MODBRANCH) for simulation of stream-aquifer
interaction, by Eric D. Swain and Eliezer J. Wexler: USGS–TWRI book 6, chap. A6. 1996. 125 p.
6–A7.
User’s guide to SEAWAT: A computer program for simulation of three-dimensional variable-density
ground-water flow, by Weixing Guo and Christian D. Langevin: USGS–TWRI book 6, chap. A7. 2002.
77 p.
Book 7. Automated Data Processing and Computations
Section C. Computer Programs
7–C1.
Finite difference model for aquifer simulation in two dimensions with results of numerical experiments, by
P.C. Trescott, G.F. Pinder, and S.P. Larson: USGS–TWRI book 7, chap. C1. 1976. 116 p.
7–C2.
Computer model of two-dimensional solute transport and dispersion in ground water, by L.F. Konikow and
J.D. Bredehoeft: USGS–TWRI book 7, chap. C2. 1978. 90 p.
7–C3.
A model for simulation of flow in singular and interconnected channels, by R.W. Schaffranek, R.A. Baltzer,
and D.E. Goldberg: USGS–TWRI book 7, chap. C3. 1981. 110 p.
Book 8. Instrumentation
Section A. Instruments for Measurement of Water Level
8–A1.
Methods of measuring water levels in deep wells, by M.S. Garber and F.C. Koopman: USGS–TWRI book 8,
chap. A1. 1968. 23 p.
8–A2.
Installation and service manual for U.S. Geological Survey manometers, by J.D. Craig: USGS–TWRI book
8, chap. A2. 1983. 57 p.
Section B. Instruments for Measurement of Discharge
8–B2.
Calibration and maintenance of vertical-axis type current meters, by G.F. Smoot and C.E. Novak:
USGS–TWRI book 8, chap. B2. 1968. 15 p.
44
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
Book 9. Handbooks for Water-Resources Investigations
Section A. National Field Manual for the Collection of Water-Quality Data
9–A1.
National field manual for the collection of water-quality data: Preparations for water sampling, by F.D.
Wilde, D.B. Radtke, Jacob Gibs, and R.T. Iwatsubo: USGS–TWRI book 9, chap. A1. 1998. 47 p.
9–A2.
National field manual for the collection of water-quality data: Selection of equipment for water sampling,
edited by F.D. Wilde, D.B. Radtke, Jacob Gibs, and R.T. Iwatsubo: USGS–TWRI book 9, chap. A2. 1998.
94 p.
9–A3.
National field manual for the collection of water-quality data: Cleaning of equipment for water sampling,
edited by F.D. Wilde, D.B. Radtke, Jacob Gibs, and R.T. Iwatsubo: USGS–TWRI book 9, chap. A3. 1998.
75 p.
9–A4.
National field manual for the collection of water-quality data: Collection of water samples, edited by F.D.
Wilde, D.B. Radtke, Jacob Gibs, and R.T. Iwatsubo: USGS–TWRI book 9, chap. A4. 1999. 156 p.
9–A5.
National field manual for the collection of water-quality data: Processing of water samples, edited by F.D.
Wilde, D.B. Radtke, Jacob Gibs, and R.T. Iwatsubo: USGS–TWRI book 9, chap. A5. 1999, 149 p.
9–A6.
National field manual for the collection of water-quality data: Field measurements, edited by F.D. Wilde and
D.B. Radtke: USGS–TWRI book 9, chap. A6. 1998. Variously paginated.
9–A7.
National field manual for the collection of water-quality data: Biological indicators, edited by D.N. Myers
and F.D. Wilde: USGS–TWRI book 9, chap. A7. 1997 and 1999. Variously paginated.
9–A8.
National field manual for the collection of water-quality data: Bottom-material samples, by D.B. Radtke:
USGS–TWRI book 9, chap. A8. 1998. 48 p.
9–A9.
National field manual for the collection of water-quality data: Safety in field activities, by S.L. Lane and
R.G. Fay: USGS–TWRI book 9, chap. A9. 1998. 60 p.
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
115°
113°
114°
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45
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Roosevelt
5095
e
Lake
W hit
4924
5138.6
5122.8
4975
4985.03
4940
4905
4985
5100 S y 5102
ck
er
5113
v er
4985.01
i
iv
R
R
5121.62
5010 4985.02
lt
r los R
a
a
4895
4984
C
S
5020
n
Phoenix
W
Sa
5121.62
i l l 4450
4442
5170
5121.65
ow
4685
Cr
r e ek
C
5141
Q
5174.9
u e en
te
San
4690
4890
rm
5180
4470
4665
4785
4793.50
5195
G il a 4740 4695 San Carlos
4445
e r 5198
Reservoir
4755
Riv
4420
v e4478
A r a vi a
C
r
pa
4485
4730
C
4601.5
5165
Wash
an
Imperial
Dam
SEE FIGURE 6 FOR
SCHEMATIC DIAGRAM
SHOWING GAGING
STATIONS IN THIS
AREA
5202.8
3961
Zun i
3975
a
W
33°
r
o
u er c
S il v e r
M
ive
3945
k
rry
n
P
C he
Co
o
C
R
r
Blythe
ve
ia
nn
ad
3973
Ri
Fr
te
4005.83
4003.5
ua
4290
W
ial
a sh
a
Po
n e b it
lor
3790.25
N E W M E X I C O
d
ta
Sa n
4249
4260
4266.2 4266
4285 4275.2
5052
4005.62
n
5044.3
Cr
5044.2 v e r
5040 k
a
a
5053.5
r
Ve
4244.5
W
R i ve r
i g h t A n g e l Cr
Br
Co
k
CALIFORNIA
Di
3983
Cl e ar
Wes t
5029.6
5058
5060
5124.5
5075.8
5075
5079.8
5125
r
Ve e
5137.8 E a s t
e
5128
5083
r
5085
e
v
e
i
r
4990
C
R
k
Wi l l i a m s R
4291
o
Cre e
B i ll
le
3790.50
4005.68
4011.1
Flagstaff
a Riv e
ri
r
Wa s h
Lit t
5028
5033
e
5029
5030 Ag
5045
h
4012.6
a
5037
pi
as
4020
ct
er
4241.5
4275
4266.5
e
eek
ar
inl
4024.5
Cr
at
3791.8
n ko
Moe
Kingman
er
dy R i v
B i g S an
Riv
Parker
Dam
o n d Cr
sh
4043.43
sh
n t o Wa
4235
4235.5
W
a
C
3792
3799.1
Glen
3800Canyon
Dam
4025
su
to
n
Sa c r a m e
o
4225
4230
Lake
Havasu
va
a
m
4042.08
Tr
ux
35°
34°
4042
Di
Color ad
Davis
Dam
4041.1
4041.15
4030.43
4030.13
4042.22
Lake
Mohave
l
do
Ha
Co
4 210
Hoover
4 215 Dam
a
or
COL ORA DO
Lake Powell
r
3820
3830
K a na b C re
ek
4 137
4 15 0
in
Lake
Mead
36°
4036
Ch
V
U TA H
e
N E VA D A
r
ve
Riv
irg
ria
Ri
37°
Douglas
46
WATER RESOURCES DATA FOR ARIZONA, WATER YEAR 2002
115°
113°
114°
111°
112°
109 °
110°
Pa
h
h
Wa
W
sh
as
W
R i ve r
i g h t A n g e l Cr
Br
cc
la
Po
R
r
4485
Ro
Si
D
ra
w
E X P L A N AT I O N
WATER-QUALITY STATION AND ABBREV I AT E D N U M B E R — C o m p l e t e s t a t i o n
nu m b e r i s 0 9 4 710 0 0
er
B a s e f r o m U. S. G e o l o g i c a l S u r vey
S t a t e b a s e m a p s, 1 : 5 0 0 , 0 0 0 ,
A r i zo n a , 1 9 7 4 ; N eva d a , 1 9 6 5 ;
New Mexico, 1965; and Utah, 1959
4710
w at e r
t a r Wa s h
v
er
Willcox
Playa
White
Al
Ri
a
m
on
sa W
ash
ve
C
Riv
R i ve r
Nogales
Figure 5. Locations of surface water-quality stations, water year 2002.
Douglas
F r a n c i sc o R
i ve
r
San
San
h
Cr
i
pa
Pe d r o
S
ow
ek
S imon W
as
ill
er
re
Tucson
Cruz
n
W
iv
n
ta
Wash
Sa
R
ley
t
100 KILOMETERS
4710
ck
los R
Sa
aw
100 MILES
Sa
n
Br
W
50
an
Car
an
A r a vi a
u
as h
zW
UN
IT
as
ED
h
ST
AT
ME
ES
XI
CO
er
San Carlos
Reservoir
r
a
Riv
4665
4740
nt a
C
t ob
R
lon
eve
de
k
ca
ve
Ca
To n t o
e
m o r e Cr
a yam p a
Ne
Cr
e
S
Sa
Wash
an
Sa
r is
e
e ek
Cr
G il a
C
k
E a g le C r e e k
a
W
er
4984
5020
Qu e e n
rm
4985
ee
a
Phoenix
r
W hit
Bl
t
Sal
Ri v e
Cr
e
eek
Sy
Roosevelt
Lake
re
Cr
Ha ss
5085
k
5100
5180
Riv
Cr
ek
w
Cr e
r
k
r
b
ue Cr
ve
ive
R iv e r
o
ec
Ri
r iz
C
sh
er c o
C
Cr
Dr
R
C
Ci
rry
Wa
r
Zun i
ar
5079.8
r
E as
Ve e
t
e
C he
ial
ive
k
Ch
O
ree
C r eek
a
M
5058
r
R
n
te n
n
Yuma
Cl e ar
ve
ia
n
ta
Ri
Fr
Sa n
Pu
Cr
r
ve
Wes t
o
S il v e r
ua
Co
e
d
a Riv e
ri
r
a
ad
N E W M E X I C O
r
Ve
Ag
ak
y B
e
5040
er
ila
lor
R
k
Co
a
n
Flagstaff
er
dy R i v
B i g S an
sh
n t o Wa
Riv
G
50
Di
Kingman
SEE FIGURE 6 FOR
SCHEMATIC DIAGRAM
SHOWING GAGING
STATIONS IN THIS
AREA
0
o
a
te
32°
le
n e b it
ar
Lit t
Cre e
Sa c r a m e
o
CALIFORNIA
o n d Cr
at
h
Blythe
0
as
Wa s h
n
W
as
B i ll
Wi l l i a m s R
Parker
Dam
4275.2
Imperial
Dam
5220
e
to
C
ct
Tr
ux
35°
33°
Moe
eek
a
m
Davis
Dam
4294.9
pi
n ko
Cr
Di
Color ad
4042
Lake
Havasu
Glen
Canyon
Dam
inl
su
Hoover
Dam
Lake
Mohave
34°
do
va
C
ra
olo
Ha
Lake
Mead
36°
3800
K a na b C re
ek
in
COL ORA DO
Lake Powell
r
Ch
V
U TA H
e
N E VA D A
r
ve
Riv
irg
ria
Ri
37°
47
HYDROLOGIC-DATA STATION RECORDS
SAN JUAN RIVER BASIN
09379025 CHINLE CREEK AT CHINLE, AZ
LOCATION.--Lat 36° 09'18", long 109° 32'15" (unsurveyed), Apache County, Hydrologic Unit 14080204, in Navajo Indian Reservation, in Canyon De Chelly National Park,
0.5 mi from park entrance on the right bank 300 ft downstream of State Highway 64 bridge.
DRAINAGE AREA.--639 mi2.
PERIOD OF RECORD.--Nov. 1999 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,540 ft above sea level, from topographic map.
REMARKS.-Records poor. Flow regulated by Wheatfields and Tsaile Lakes. Some diversions upstream for irrigation, livestock tanks, and domestic use.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,000 ft3/s Aug. 13, 2001, gage height, 4.01 ft. Minimum daily discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 967 ft3/s Aug. 20 at 1745, gage height 3.98 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.56
e0.58
e0.57
e0.58
e0.52
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.54
e0.59
e0.58
e0.63
e0.69
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e1.4
e1.6
e1.7
e1.9
e1.9
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.03
e0.02
e0.00
e0.00
e0.00
e2.0
e2.1
e2.7
e2.8
e2.9
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
e0.06
e0.15
e0.19
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
TOTAL
MEAN
MAX
MIN
MED
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 3616.80
TOTAL 457.27
APR
MAY
JUN
JUL
AUG
SEP
e0.06
e0.06
e0.06
e0.06
e0.06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.10
e0.00
e0.00
e0.10
0.00
0.00
0.00
0.00
0.00
e10
18
19
e13
e13
0.11
0.32
0.23
0.11
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.14
8.1
10
4.8
0.12
0.00
0.00
21
e1.0
e16
e13
e13
15
15
11
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e5.4
e4.6
e2.2
0.59
0.00
6.7
9.6
8.9
11
11
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.15
0.04
0.00
0.00
0.00
0.00
0.00
0.00
e5.4
0.00
0.00
0.00
0.00
0.00
e3.0
e4.8
10
10
9.2
12
9.6
e5.1
e3.5
e2.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
7.4
5.5
0.00
0.79
e0.15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.20
e0.27
0.50
0.57
e0.55
e0.57
e8.7
e8.5
e8.8
-------
e1.5
e0.80
e0.40
e0.10
e0.06
e0.06
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e0.46
e0.00
e0.00
e0.00
e0.00
e0.00
0.00
0.00
0.00
0.00
e0.46
e0.00
0.00
0.00
0.00
0.00
0.00
---
3.11
0.100
0.57
0.00
0.00
89.84
3.209
10
0.52
1.9
268.72
8.668
19
0.06
9.6
1.10
0.037
0.32
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
14.34
0.463
7.4
0.00
0.00
29.37
0.947
10
0.00
0.00
50.79
1.693
21
0.00
0.00
MEAN 9.909
MEAN 1.253
MAX 101
MAX 21
MAR
e9.1
e9.1
e9.1
e9.1
e9.8
MIN 0.00
MIN 0.00
MED 0.00
MED 0.00
48
SAN JUAN RIVER BASIN
09379050 LUKACHUKAI CREEK NEAR LUKACHUKAI, AZ
LOCATION.--Lat 36° 28'39", long 109° 20'58" (unsurveyed), Apache County, Hydrologic Unit 14080204, in Navajo Indian Reservation, on left bank 8 mi northwest of
Lukachukai, AZ.
DRAINAGE AREA.--Unknown.
PERIOD OF RECORD.--Nov. 1999 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,750 ft above sea level, from topographic map.
REMARKS.-Records poor. Many small diversions upstream for irrigation and livestock.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,000 ft3/s Sept. 10, 2002, at 1345, gage height, 8.17 ft, from an extension of the rating curve. Minimum daily
discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 4,000 ft3/s Sept. 10 at 1345, gage height, 8.17 ft, from an extension of the rating curve. Minimum daily discharge,
no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.04
e0.11
e0.13
e0.13
e0.12
e0.11
0.05
e0.02
e0.05
e0.23
e0.16
e1.3
e1.4
e1.9
e2.3
e2.2
e0.77
e0.55
e0.40
e0.44
e0.57
0.92
0.66
0.39
0.44
0.41
e0.08
e0.08
e0.08
e0.06
e0.06
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.02
0.03
0.10
0.10
0.10
0.10
0.10
6
7
8
9
10
0.02
0.02
0.02
0.02
0.01
0.05
0.05
0.04
0.03
0.03
e0.10
e0.08
e0.08
e0.06
e0.08
e0.53
1.7
2.6
2.9
e2.8
e2.0
e1.5
e2.2
e1.8
e1.1
e0.64
e0.64
e0.64
e0.62
e0.65
0.45
1.6
1.1
0.63
0.53
e0.04
e0.04
e0.04
e0.02
e0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
1.6
0.16
0.04
0.02
0.17
3.7
26
0.27
e100
11
12
13
14
15
0.00
0.01
0.00
0.01
0.02
0.03
0.03
0.03
0.03
0.03
e0.08
e0.08
e0.08
e0.08
e0.08
e1.7
e2.2
e1.9
e1.4
2.2
e2.1
e2.3
e1.9
e2.3
e1.5
e0.66
e0.60
e0.62
e0.71
e0.74
0.51
0.51
0.45
0.30
0.24
e0.02
e0.02
e0.02
e0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.01
0.02
e0.70
e0.10
e0.08
0.03
0.00
16
17
18
19
20
0.03
0.03
0.03
0.02
0.02
0.03
0.03
0.03
0.03
0.03
e0.08
e0.08
e0.08
e0.08
e0.08
2.1
1.2
e1.0
e0.28
e0.25
e1.9
e2.0
e1.7
e1.7
e1.7
e0.78
e0.89
e1.1
e1.3
e1.4
0.22
0.22
0.19
0.16
0.16
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
2.0
0.02
0.02
0.02
0.02
0.02
0.85
0.00
0.00
26
2.2
0.12
21
22
23
24
25
0.02
0.03
0.02
0.02
0.02
0.05
0.04
0.03
0.05
0.12
e0.08
e0.08
e0.08
e0.08
e0.08
e0.25
e1.8
e2.1
e2.1
e5.2
e1.6
e1.2
e1.3
e1.2
e1.1
1.5
1.6
1.8
1.5
2.0
e0.15
e0.15
e0.12
e0.12
e0.12
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
7.6
0.46
0.00
0.00
1.7
0.08
0.05
0.05
0.06
0.02
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.02
0.02
0.02
0.02
0.02
0.03
0.09
e0.09
e0.09
e0.09
e0.10
---
e0.07
e0.07
e0.06
e0.06
e0.06
0.05
e5.1
e4.0
2.1
1.2
e1.0
e1.0
e0.93
e0.95
e0.92
-------
1.7
1.5
1.4
1.4
1.2
1.0
e0.12
e0.10
e0.10
e0.10
e0.10
---
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
---
0.00
0.01
0.00
0.01
0.02
0.02
0.05
0.05
0.05
2.7
0.51
0.11
0.00
0.00
e0.02
e0.02
e0.02
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
0.59
0.019
0.03
0.00
0.02
1.2
1.41
0.047
0.12
0.03
0.03
2.8
2.57
0.083
0.13
0.05
0.08
5.1
51.12
1.649
5.2
0.02
1.7
101
46.00
1.643
2.3
0.92
1.7
91
31.32
1.010
2.0
0.40
0.78
62
11.27
0.376
1.6
0.10
0.23
22
0.94
0.030
0.08
0.02
0.02
1.9
0.60
0.020
0.02
0.02
0.02
1.2
10.51
0.339
7.6
0.00
0.02
21
8.40
0.271
2.7
0.01
0.03
17
159.95
5.332
100
0.00
0.09
317
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 944.66
TOTAL 324.68
MEAN 2.588
MEAN 0.890
FEB
MAX 142
MAX 100
MIN 0.00
MIN 0.00
MED 0.11
MED 0.06
AC-FT 1870
AC-FT 644
49
LITTLE COLORADO RIVER BASIN
09379180 LAGUNA CREEK AT DENNEHOTSO, AZ
LOCATION.--Lat 36° 51'14", long 109° 50'43", in unsurveyed Apache County, Hydrologic Unit 14080204, on right bank about 50 ft upstream from bridge, at Dennehotso, AZ.
DRAINAGE AREA.--414 mi2.
PERIOD OF RECORD.--July 1996 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 4,985 ft above sea level, from topographic map.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,690 ft3/s, Sept. 16, 1997, gage height, 11.39 ft. Minimum daily discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft 3/s and (or) maximum (*):
Date
Time
Sept. 11.........
Discharge (ft3/s) Gage height (ft)
0830
*1,600
*11.05
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.53
0.52
0.78
0.97
1.2
1.6
e2.0
e2.2
e4.2
e4.4
DEC
e1.6
e1.7
e1.8
e2.8
e3.2
JAN
e1.8
e1.4
e1.1
e1.1
e1.1
3.7
e3.0
1.2
0.62
1.8
e1.5
0.87
0.71
0.59
1.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
1.1
1.6
2.5
2.4
2.2
e2.2
1.4
e0.69
e0.57
e0.73
e3.2
e2.8
e2.5
e3.2
e3.1
e1.1
e1.2
e1.3
e1.4
e1.9
2.7
e4.4
3.5
1.7
2.3
1.1
1.0
0.95
2.2
2.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
2.3
2.1
2.7
2.9
1.2
e0.33
e1.1
e1.2
e0.72
0.07
e2.7
e2.7
e3.1
e3.3
e3.1
e2.6
e2.6
e2.8
e3.9
e3.8
3.6
2.9
2.4
1.0
0.75
0.45
0.32
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
544
253
16
4.6
0.56
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
3.7
3.1
2.6
2.4
2.2
e0.59
e0.04
0.04
e0.10
e0.28
e4.5
e2.4
e1.4
e1.1
e1.4
e4.8
9.5
e10
8.2
6.2
0.53
0.18
0.67
0.72
e3.6
0.00
0.00
4.2
3.1
0.54
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.00
0.00
0.00
0.00
21
22
23
24
25
1.3
0.14
0.00
0.05
0.03
2.2
2.2
0.29
e1.6
e5.8
e0.40
e0.65
1.1
e0.48
e0.32
e1.7
e1.8
e2.0
1.3
0.81
e7.8
6.8
5.5
5.8
3.7
e4.8
e4.9
e4.6
e4.2
3.8
0.51
0.25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.08
0.10
0.14
0.31
0.34
0.55
e1.6
e1.2
e1.3
e1.4
e2.0
---
e0.56
e0.87
e0.82
e2.7
e3.7
e2.5
0.86
1.9
3.6
e4.2
e2.4
e2.3
2.7
2.4
e1.9
-------
3.0
e2.6
e3.7
e3.6
e2.9
e2.1
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
3.04
0.098
1.3
0.00
6.0
0.00
58.59
1.953
5.8
0.29
116
0.00
38.56
1.244
4.4
0.04
76
0.00
74.47
2.402
4.5
0.81
148
0.01
104.4
3.729
10
1.1
207
0.01
22.09
0.736
4.2
0.00
44
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.01
0.000
0.01
0.00
0.02
0.00
1639.38
54.65
544
0.00
3250
0.13
0.186
1.12
1999
0.000
1997
10.58
29.8
1999
0.000
2000
17.65
76.6
1997
0.000
2002
19.73
54.6
2002
0.000
2001
81.47
2.628
4.9
0.18
162
0.01
1.7
309
e371
132
7.5
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
10.77
28.0
2001
0.098
2002
3.982
7.35
1999
1.60
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
1.729
3.40
1999
1.05
2000
3.158
4.29
2000
2.31
1997
3.673
6.14
1998
2.60
1997
FOR 2001 CALENDAR YEAR
2.086
4.51
2001
0.85
1999
1.884
3.22
1999
0.25
2000
0.986
4.93
2001
0.000
2000
FOR 2002 WATER YEAR
1719.28
4.710
2022.01
5.540
454
Jul 10
0.00 Apr 5
0.00 May 25
3410
0.011
5.5
0.53
0.00
544
Sep 11
0.00 Oct 1
0.00 Oct 1
4010
0.013
3.6
0.08
0.00
WATER YEARS 1996 - 2002
6.608
11.4
1997
1.22
2000
651
Oct 23 2000
0.00 Jul 19 1996
0.00 Jul 19 1996
4790
0.016
6.9
0.87
0.00
50
SAN JUAN RIVER BASIN
09379200 CHINLE CREEK NEAR MEXICAN WATER, AZ
LOCATION.--Lat 36° 56'38", long 109° 42'36" in sec. 19, T.41 N., R.25 E. (unsurveyed), Apache County, Hydrologic Unit 14080204, in Navajo Indian Reservation, on right bank
150 ft upstream from bridge on U.S. Highway 160, 3 mi upstream from Walker Creek, 4 mi southwest of Mexican Water, 5 mi downstream from confluence of Chinle Creek
and Laguna Creek, and 6 mi upstream from Arizona-Utah State line.
DRAINAGE AREA.--3,650 mi2.
PERIOD OF RECORD.--Oct. 1964 to current year (monthly discharge only for 1979). Prior to Oct. 1970 published as Chinle Wash near Mexican Water.
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder, crest-stage gage, and concrete control. Datum of gage is 4,720 ft above sea level.
REMARKS.--Records poor. Some diversions upstream for irrigation, livestock tanks, and domestic use. Many Farms Reservoir, about 25 mi upstream, was built in 1939 with
an original capacity of 25,000 acre-ft. The reservoir provides off-channel storage for irrigation of about 1,600 acres.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,000 ft3/s Aug. 24, 1982, gage height, 13.87 ft, from rating curve extended above 3,100 ft3/s on basis of
slope-area measurement at gage height 12.50 ft; no flow at times each year.
EXTREMES FOR CURRENT PERIOD.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Time
Discharge (ft3/s)
July 9 ............
1400
3,330
8.08
Sept. 8...........
0945
2,030
6.93
Sept. 12 .........
1630
*3,870
*8.54
Date
Gage height (ft)
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
1.2
1.2
1.2
1.3
1.6
2.3
2.2
2.5
5.1
5.0
1.9
e2.8
e3.4
e4.0
e4.4
e2.5
e2.1
e1.8
e1.8
e2.0
3.8
e3.0
e3.0
e2.0
e3.0
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
1.6
1.8
1.8
2.3
2.5
3.3
1.7
0.85
0.64
0.82
4.3
5.8
3.5
5.5
6.5
e2.0
e2.0
e1.9
e2.1
e2.0
4.9
7.1
8.0
e5.0
e4.0
11
12
13
14
15
0.00
0.00
0.00
0.00
e0.10
2.3
2.5
2.3
2.6
2.5
0.41
1.8
1.3
0.93
e1.2
e3.0
e3.0
e5.0
e5.0
e3.0
e3.0
e3.0
e3.0
e4.5
e4.0
16
17
18
19
20
e0.17
0.19
0.21
0.21
0.15
1.9
2.5
2.8
2.7
e2.6
0.91
0.59
0.48
0.60
0.58
e5.0
e2.9
e2.3
e1.5
e2.0
21
22
23
24
25
0.02
0.00
0.00
0.00
1.6
e2.4
2.4
2.5
e2.0
e6.0
0.78
0.70
1.4
0.67
0.51
26
27
28
29
30
31
0.28
0.29
0.39
0.42
0.59
0.99
e2.5
e2.0
2.1
1.7
2.7
---
TOTAL
MEAN
MAX
MIN
AC-FT
5.61
0.181
1.6
0.00
11
67.5
2.250
6.0
1.2
134
APR
MAY
JUN
JUL
AUG
SEP
1.9
1.7
1.6
1.5
1.4
0.55
0.77
0.59
0.86
0.57
0.05
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.04
e0.08
e0.10
e0.14
0.00
0.00
0.00
0.00
0.00
1.4
1.4
1.1
1.1
1.2
0.26
0.14
0.15
0.15
0.15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
94
e50
e2.0
0.00
0.00
0.00
254
952
e400
e40
5.1
5.7
5.7
5.1
4.2
2.3
1.6
1.4
1.0
0.94
0.16
0.20
0.24
0.20
0.15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1520
2500
e240
e10
0.00
e5.0
e10
e10
e9.5
e9.2
3.5
3.2
2.8
3.2
3.8
1.1
0.99
0.90
1.8
2.9
0.15
0.16
0.19
0.12
0.12
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
513
232
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e20
e0.05
e2.4
2.2
2.7
e2.1
e1.6
8.4
e8.0
8.5
6.8
e5.8
5.6
5.2
4.9
4.2
4.0
1.5
1.5
1.4
1.3
1.1
0.00
0.00
0.00
0.04
0.16
0.00
0.00
0.00
0.00
0.00
71
17
4.1
3.2
2.9
e36
17
0.05
0.00
0.00
0.00
0.00
0.00
0.00
0.10
0.56
0.91
1.3
3.7
4.8
3.5
e1.8
e2.6
4.5
e4.5
e3.1
e2.8
e4.0
e2.5
e3.0
-------
3.2
2.9
4.2
4.0
3.2
2.5
0.90
0.88
1.00
1.0
0.81
---
0.12
0.11
0.09
0.09
0.09
0.06
0.00
0.00
0.00
0.00
0.00
---
0.61
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
77
e7.0
0.77
0.59
e2.9
e8.1
e1.8
---
52.04
1.679
5.1
0.41
103
105.1
3.390
6.5
1.5
208
128.4
4.586
10
1.8
255
130.0
4.194
8.0
2.0
258
40.62
1.354
2.9
0.81
81
6.64
0.214
0.86
0.00
13
0.09
0.003
0.05
0.00
0.2
843.85
27.22
513
0.00
1670
283.41
9.142
94
0.00
562
5950.31
198.3
2500
0.00
11800
5.254
72.5
1973
0.000
1975
25.47
129
1975
0.000
1979
55.34
501
1982
0.000
1974
41.86
342
1982
0.000
1979
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1965 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
22.57
142
1973
0.18
2002
14.47
144
1988
0.41
1991
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
8.480
41.2
1966
1.09
1978
17.22
151
1993
1.60
1996
26.94
169
1988
2.25
1996
FOR 2001 CALENDAR YEAR
3485.54
9.549
381
0.00
0.00
6910
18
1.8
0.00
23.88
215
1983
0.67
1967
58.19
402
1985
0.53
1996
49.96
294
1980
0.21
2002
FOR 2002 WATER YEAR
7613.57
20.86
Aug 15
Jun 1
Jun 1
2500
0.00
0.00
15100
5.6
1.1
0.00
Sep 12
Oct 1
Oct 1
WATER YEARS 1965 - 2002
29.14
94.2
4.47
6000
0.00
0.00
21110
59
3.0
0.00
1982
1974
Aug 25 1982
Jul 4 1965
Jun 12 1966
51
COLORADO RIVER MAIN STEM
09379900 LAKE POWELL AT GLEN CANYON DAM, AZ
LOCATION.--Lat 36° 56'12", long 111° 29'00", in sec. 24, T.41 N., R.8 E., Coconino County, Hydrologic Unit 14070006, at Glen Canyon Dam on Colorado River, 900 ft upstream
from bridge on U.S. Highway 89, 1.4 mi downstream from Wahweap Creek, 2 mi northwest of Page, and 12 mi downstream from Utah-Arizona State line.
DRAINAGE AREA.--111,700 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Mar. 1963 to current year.
GAGE.--Water-stage recorder. Datum of gage is National Geodetic Vertical Datum of 1929. Prior to Sept. 1, 1964, nonrecording gage at same site and datum.
REMARKS.--Reservoir is formed by concrete-arch gravity dam; storage began Mar. 13, 1963; dam completed Sept. 1963. Total capacity, (from capacity table computed by
Bureau of Reclamations, based on a survey completed in 1985; used since Oct. 1, 1990) 26,215,000 acre-ft consisting of the following: dead storage, 1,893,000 acre-ft
below elevation 3,370 ft-sill of outlet gates; usable contents, 24,322,000 acre-ft between elevations 3,370 ft and 3,700 ft-top of conservation pool. Reservoir is used for
power development, to provide storage replacement for upstream irrigation development, and to meet downstream requirements under the Colorado River Compact of
1922. Figures given herein represent usable contents; prior to Oct. 1, 1968, figures of total contents were published (prior to sealing of diversion tunnel July 7, 1965, all
storage was usable).
COOPERATION.--Records furnished by Bureau of Reclamation.
EXTREMES (at 2400) FOR PERIOD OF RECORD.--Maximum contents, 26,373,000 acre-ft July 14, 1983, elevation, 3,708.34 ft; minimum since power pool level was reached
(Aug. 16, 1964), 4,166,000 acre-ft Mar. 18, 1965, elevation, 3,490.76 ft.
EXTREMES (at 2400) FOR CURRENT YEAR.--Maximum contents, 19,120,000 acre-ft Oct. 1, elevation, 3,664.73 ft; minimum, 14,468,000 acre-ft Sept. 30, elevation,
3,626.53 ft.
Capacity table (elevation, in feet, and usable contents, in acre-feet)
3,610
3,622
3,634
3,646
3,658
12,730,000
13,976,000
15,306,000
16,723,000
18,232,000
3,670
3,682
3,694
3,706
19,838,000
21,553,000
23,373,000
25,304,000
RESERVOIR STORAGE, in K AC-FT, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
19120
19108
19096
19082
19069
18794
18785
18777
18770
18758
18510
18506
18470
18446
18414
17984
17961
17947
17932
17922
17499
17485
17476
17461
17452
17178
17171
17162
17156
17144
16918
16910
16903
16899
16888
16699
16685
16678
16671
16663
16529
16524
16511
16501
16501
16084
16062
16034
16018
15994
15309
15294
15269
15240
15213
14557
14547
14533
14522
14513
6
7
8
9
10
19056
19044
19029
19023
19003
18749
18743
18736
18722
18712
18397
18388
18376
18371
18345
17910
17898
17883
17867
17845
17438
17426
17412
17407
17392
17131
17128
17121
17110
17098
16888
16883
16873
16865
16870
16652
16645
16634
16629
16623
16496
16485
16480
16467
16450
15965
15945
15926
15897
15874
15189
15162
15136
15111
15090
14505
14515
14524
14517
14522
11
12
13
14
15
18998
18974
18970
18969
18958
18706
18698
18687
18675
18665
18331
18311
18292
18276
18258
17833
17813
17807
17789
17776
17379
17369
17354
17349
17332
17085
17073
17064
17056
17043
16855
16853
16841
16834
16834
16615
16612
16603
16592
16583
16439
16427
16417
16399
16386
15843
15818
15793
15770
15745
15064
15043
15018
14996
14965
14532
14539
14562
14571
14577
16
17
18
19
20
18946
18933
18926
18917
18907
18653
18642
18638
18625
18613
18245
18222
18204
18189
18170
17757
17740
17718
17705
17690
17322
17309
17299
17286
17278
17038
17030
17020
17011
17008
16812
16815
16804
16788
16789
16583
16569
16561
16558
16543
16372
16359
16343
16328
16305
15719
15694
15664
15639
15613
14938
14917
14893
14871
14845
14585
14568
14558
14553
14549
21
22
23
24
25
18906
18893
18886
18873
18859
18604
18598
18582
18570
18566
18146
18131
18121
18100
18091
17672
17659
17644
17624
17603
17266
17253
17244
17234
17226
17000
16988
16982
16973
16963
16784
16774
16766
16761
16750
16532
16525
16520
16520
16518
16287
16267
16254
16233
16210
15590
15565
15538
15507
15487
14818
14790
14762
14742
14717
14547
14540
14533
14523
14524
26
27
28
29
30
31
18851
18839
18835
18826
18814
18802
18554
18544
18521
18515
18511
---
18071
18055
18038
18023
18009
17996
17591
17579
17558
17539
17526
17508
17208
17204
17201
-------
16967
16957
16951
16940
16936
16927
16747
16733
16725
16713
16705
---
16515
16520
16526
16534
16535
16536
16193
16172
16152
16129
16111
---
15448
15424
15411
15388
15363
15333
14689
14666
14651
14623
14590
14569
14506
14487
14471
14470
14468
---
TOTAL 587512
MEAN
18952
MAX
19120
MIN
18802
(*) 3662.35
(**) -333000
559713
18657
18794
18511
3660.14
-291000
565502
18242
18510
17996
3656.17
-515000
550280
17751
17984
17508
3652.33
-488000
485561
17341
17499
17201
3649.88
-307000
528411
17046
17178
16927
3647.67
-274000
504580
16819
16918
16705
3645.85
-222000
514179
16586
16699
16515
3644.46
-169000
490727
16358
16529
16111
3640.91
-425000
487151
15715
16084
15333
3634.24
-778000
463180
14941
15309
14569
3627.45
-764000
435918
14531
14585
14468
3626.53
-101000
CAL YR 2001
WTR YR 2002
TOTAL 7010173
TOTAL 6172714
MEAN 19206
MEAN 16912
MAX 20259
MAX 19120
(*) Elevation, in feet, at end of month.
(**) Change in contents, in acre-feet.
MIN 17996
MIN 14468
(**) -1827000
(**) -4667000
52
COLORADO RIVER MAIN STEM
09379910 COLORADO RIVER BELOW GLEN CANYON DAM, AZ
LOCATION.--Lat 36° 55'18", long 111° 28'58" in NW1/4SE1/4 sec. 25, T.41 N., R.8 E., Coconino County, Hydrologic Unit 14070006, on left bank 4,500 ft downstream from Glen
Canyon Dam, 2 mi west of Page, 13 mi downstream from Utah-Arizona State line, and 14.5 mi upstream from Lees Ferry.
DRAINAGE AREA.--111,700 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Oct. 1989 to Mar. 1993, Mar. 2000 to current year.
GAGE.--Water-stage recorder. Datum of gage is 3,100 ft above sea level.
REMARKS.-- Records fair. Flow completely regulated since Mar. 13, 1963, by Lake Powell 4,500 ft upstream. Many diversions above Lake Powell for irrigation, municipal,
and industrial use. No diversion or inflow between Lake Powell and the gage.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 31,000 ft3/s Sept. 7, 2000, gage height, 38.48 ft. Minimum daily discharge, 2,570 ft3/s Oct. 29, 1989.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 19,500 ft3/s Aug. 7 at 1735, gage height, 35.42 ft. Minimum daily discharge, 7,280 ft3/s Oct. 28.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
10300
10100
10100
10200
10200
10300
10400
9450
9060
10400
13900
10300
13800
14000
13900
11600
13900
13500
13900
11900
11300
9870
9470
11200
11200
10200
9290
9360
9910
9990
10500
10400
10400
10400
10500
10200
10500
10900
10100
9490
12800
12000
13200
13200
13000
15300
15300
15200
13300
14900
14900
14800
14300
13600
14700
8730
7350
8540
8360
8360
6
7
8
9
10
10200
7380
10200
10300
10400
10300
10300
10000
10300
10000
13700
13700
12800
9840
13500
11100
13500
13600
13600
13600
11000
10900
11000
9980
9590
10000
10200
10200
9500
9320
9490
9440
10500
10500
10500
10700
10500
10500
10500
10600
13000
13000
12200
11800
13000
14500
13300
14700
14700
14800
15100
15200
15400
15100
14100
8340
7900
7310
8410
8580
11
12
13
14
15
10200
10200
10100
7320
10200
8790
10300
10300
10300
10400
13600
13600
13500
13500
13100
13700
12100
11000
13500
13300
11400
11300
11300
11200
11200
10200
9950
10100
10100
10100
10700
10600
9670
9490
10700
9800
9440
10500
10500
10500
13000
13000
13000
13000
12200
15500
15400
15200
13400
15300
13500
14900
14900
15000
15100
8600
8560
8560
7930
7380
16
17
18
19
20
10200
10200
10200
10300
e10100
10100
10100
9170
10500
10400
10100
13500
13500
13800
13800
13800
13700
13600
11700
11000
9940
9780
11300
11300
11300
9600
9510
10500
10100
10000
10600
10700
10700
10700
9790
10600
10400
10200
9380
10100
11800
13000
13000
13000
13100
15300
15300
15300
15000
15000
15100
14400
13700
15100
14900
8480
8410
8500
8630
8640
21
22
23
24
25
e7300
10200
10200
10200
10200
10300
9320
10400
10300
9390
13700
13200
10200
13600
10600
13600
13700
13600
13600
13700
11200
11200
9960
9790
11300
10100
10100
9170
9360
9900
9520
10800
10600
10600
10600
10500
10500
10300
8030
8070
13300
12300
11700
13000
13000
13400
15100
15200
15000
15000
15100
15000
13200
14300
13400
7930
7400
8480
8460
8460
26
27
28
29
30
31
10200
10100
7280
10100
10100
10200
10900
10900
11000
10800
10900
---
13400
13700
13800
13000
10900
13800
11600
12000
13800
13300
13300
13400
11300
11100
11000
-------
9870
10200
10100
10100
9280
9310
10600
9640
9390
10500
10600
---
8110
8130
8140
8170
8190
8210
13100
13000
13000
12300
11900
---
15100
14900
13600
15100
15200
15400
15100
15300
15300
15100
15100
14600
8440
8480
7380
7440
8450
---
TOTAL
MEAN
MAX
MIN
AC-FT
304480
9822
10400
7280
603900
305080
10170
11000
8790
605100
401340
12950
14000
9840
796100
403200
13010
13900
11000
799700
302380
10800
11400
9470
599800
305620
9859
10500
9170
606200
309130
10300
10800
9390
613200
301760
9734
10900
8030
598500
381900
12730
13300
11700
757500
459700
14830
15500
13300
911800
455300
14690
15400
13200
903100
246490
8216
8730
7310
488900
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 4036780
TOTAL 4176380
MEAN 11060
MEAN 11440
MAX 14700
MAX 15500
MIN 6770
MIN 7280
AC-FT 8007000
AC-FT 8284000
53
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ
(NATIONAL STREAM-QUALITY ACCOUNTING NETWORK)
LOCATION.--Lat 36° 51'53", long 111° 35'15", in NE1/4SE1/4 sec. 13, T.40 N., R.7 E., Coconino County, Hydrologic Unit 14070006, in Navajo Indian Reservation, on left bank at
head of Marble Gorge at Lees Ferry, just upstream from Paria River, 16 mi downstream from Glen Canyon Dam, 28 mi downstream from Utah-Arizona State line, and 61.5 mi
upstream from Little Colorado River.
DRAINAGE AREA.--111,800 mi2, approximately, including 3,959 mi2 in Great Divide Basin in southern Wyoming, which is noncontributing.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--Jan. 1895 to current year. Estimates of monthly and annual discharge only for some periods, published in WSP 1313.
REVISED RECORDS.--WSP 859: 1921–23. WSP 1313: 1914–21.
GAGE.--Water-stage recorder. Datum of gage is 3,106.16 ft above sea level. Prior to Jan. 19, 1923, nonrecording gages or reference points within 400 ft of present gage, at
different datums.
REMARKS.--No estimated daily discharge. Records good. Flow regulated since Mar. 13, 1963, by Lake Powell, 16 mi upstream. Many diversions above Lake Powell for
irrigation, municipal, and industrial use. No diversions or inflow between Lake Powell and the gage.
AVERAGE DISCHARGE.--51 years (water years 1912–62), 17,850 ft3/s, 12,930,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--1895–1962: Maximum discharge, 220,000 ft3/s June 18, 1921, gage height, 26.5 ft, from floodmarks, from rating curve extended
above 120,000 ft3/s on basis of discharge computed for station near Grand Canyon; minimum, 750 ft3/s Dec. 27, 1924.
1963–2000: Maximum discharge, 97,300 ft3/s June 29, 1983, gage height, 18.14 ft; minimum daily, 700 ft3/s Jan. 23, 24, 1963, result of closing coffer dam at Glen Canyon
Dam.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1868, about 300,000 ft3/s July 7, 1884, gage height, 31.5 ft, present site and datum, from
floodmark at mouth of Paria River, from rating curve extended above 120,000 ft3/s on basis of discharge computed for flood of June 18, 1921, for station near Grand Canyon.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 19,000 ft3/s Aug. 7 at 1945, gage height, 10.39 ft. Minimum daily discharge, 7,070 ft3/s Sept. 8.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
9900
10200
10100
10200
10200
10400
10500
9610
8970
10500
13500
10700
13600
14100
14200
11900
13800
13600
13900
12200
11600
10100
9570
11100
11300
10300
9350
9390
9920
10100
10600
10500
10500
10400
10500
10500
10500
11000
10300
9600
11900
12200
13200
13300
13100
15100
15400
15300
13500
14900
15200
14900
14400
13800
14700
9740
7570
8540
8560
8470
6
7
8
9
10
10200
7750
9920
10400
10400
10500
10300
10100
10400
10100
13800
13800
12900
10200
13400
11200
13500
13700
13700
13700
11100
10900
11000
10200
9570
10200
10200
10300
9570
9390
9610
9490
10500
10500
10500
10700
10600
10600
10600
10700
13000
13100
12400
12000
13100
14600
13600
14700
14800
14900
15100
15300
15400
15100
14100
8460
7630
7070
8390
8590
11
12
13
14
15
10300
10300
10100
7670
9910
8870
10400
10400
10400
10500
13700
13700
13600
13600
13300
13800
12400
11100
13300
13400
11400
11400
11300
11300
11300
10200
10200
10200
10200
10300
10800
10600
9760
9480
10500
10100
9550
10400
10600
10600
13100
13100
13100
13100
12400
15500
15600
15400
13600
15300
13800
14900
15000
15000
15100
8660
8600
8640
8050
7540
16
17
18
19
20
10300
10300
10300
10300
10100
10000
10200
9240
10500
10500
10500
13300
13600
13800
14000
13900
13800
13700
12000
11000
10100
9780
11300
11400
11400
9620
9640
10600
10200
10100
10600
10600
10700
10700
9910
10700
10600
10300
9610
10200
11900
13100
13100
13100
13200
15400
15400
15400
15100
15200
15200
14400
14000
15100
15000
8420
8440
8540
8590
8650
21
22
23
24
25
7700
10000
10200
10300
10300
10400
9440
10400
10400
9310
13800
13200
10700
13400
10900
13600
13800
13700
13700
13700
11300
11300
10200
9740
11300
10200
10200
9240
9430
9980
9560
10700
10700
10700
10700
10600
10600
10500
8330
8170
13300
12500
11900
13100
13100
13700
15000
15300
15100
15100
15100
15000
13600
14300
13700
8000
7520
8340
8430
8460
26
27
28
29
30
31
10300
10200
7700
9910
10200
10300
11000
11000
11100
10900
11000
---
13300
13700
13900
13100
11200
13700
11900
12000
13700
13400
13500
13500
11400
11200
11100
-------
10000
10200
10100
10100
9350
9380
10700
9800
9500
10500
10700
---
8160
8160
8200
8140
8200
8210
13100
13100
13100
12400
12000
---
15200
15100
13800
15000
15200
15300
15100
15200
15500
15100
15100
14700
8440
8440
7600
7400
8310
---
TOTAL
MEAN
MAX
MIN
AC-FT
305960
9870
10400
7670
606900
307340
10240
11100
8870
609600
404200
13040
14200
10200
801700
406100
13100
13900
11000
805500
304660
10880
11600
9570
604300
308160
9941
10600
9240
611200
310310
10340
10800
9480
615500
305030
9840
11000
8140
605000
384100
12800
13300
11900
761900
462500
14920
15600
13500
917400
457900
14770
15500
13600
908200
248090
8270
9740
7070
492100
CAL YR 2001
WTR YR 2002
TOTAL 4079080
TOTAL 4204350
MEAN 11180
MEAN 11520
MAX 14900
MAX 15600
MIN 6800
MIN 7070
AC-FT 8091000
AC-FT 8339000
54
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Jan. to July 1926, Oct. 1926 to June 1927, Aug. 1928 to Dec. 1933, Nov. 1942 to Oct. 1945, Oct. 1947 to current year.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Oct. 1964 to Sept. 1981, Feb. 1982 to Dec. 1987, Oct. 1989 to current year.
pH: Aug. 1990 to Apr. 1993.
WATER TEMPERATURE: July 1949 to Sept. 1981, Feb. 1982 to Dec. 1987, Oct. 1989 to current year.
DISSOLVED OXYGEN: Aug. 1990 to Apr. 1993.
SUSPENDED-SEDIMENT DISCHARGE: Oct. 1928 to Dec. 1933, Nov. 1942 to Sept. 1944, Oct. 1947 to Sept. 1965.
TURBIDITY: Oct. 1998 to Sept. 2000, minimum daily values.
INSTRUMENTATION.--Specific conductance and water temperature recorder Mar. 1977 to Sept. 1981, Feb. 1982 to Dec. 1987, and Oct. 1990 to current year; pH, Aug. 1990
to Apr. 1993; dissolved-oxygen recorder Aug. 1990 to Apr. 1993.
REMARKS.--Daily water temperature and specific conductance records good. Unpublished daily specific conductance measurements for period Nov. 1942 to Oct. 1945,
Oct. 1947 to Sept. 1964 available from District Office in Tucson, AZ. Extreme value for the period of record include only those obtained after a normal flow release pattern
from Glen Canyon Dam was started after July 31, 1965.
EXTREMES FOR PERIOD OF RECORD.-SPECIFIC CONDUCTANCE (Aug. 1965 to Sept. 1981, Feb. 1982 to Dec. 1987, Oct. 1990 to current year): Maximum, 1,260 microsiemens, Apr. 20, 21, 1967; minimum,
460 microsiemens, Aug. 10, 1965.
pH: Maximum, 8.3, on many days in Jan. to Apr. and June 1991; minimum, 7.6, on several days in Nov. and Dec. 1990, and Mar. 1991.
WATER TEMPERATURE (Aug. 1965 to Sept. 1981, Feb. 1982 to Dec. 1987, Oct. 1990 to current year): Maximum, 21.0° C on several days during Aug., Sept., and Oct. 1965,
1967, 1968; minimum, 2.0° C on Jan. 29, 30, 1970.
DISSOLVED OXYGEN: Maximum recorded, 11.2 mg/L, Apr. 29, 1991; minimum recorded, 6.4 mg/L, Sept. 18, 1991.
TURBIDITY: Minimum daily, less than 1.0 NTU on most days.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
11...
MAR
12...
APR
17...
MAY
21...
21...
Date
DEC
11...
MAR
12...
APR
17...
MAY
21...
21...
Date
DEC
11...
MAR
12...
APR
17...
MAY
21...
21...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
730
7.5
9.0
120
250
789
11.1
8.0
120
250
8.0
821
23.0
8.5
100
260
8.1
8.1
822
822
25.0
25.0
8.5
8.5
130
130
270
270
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
Time
Sample
type
1020
9
14600
.42
680
7.1
69
7.9
1000
9
10600
.66
685
8.1
76
8.1
1000
9
10700
.36
650
7.8
78
0930
0940
9
7
10300
10300
.41
.46
678
678
8.0
8.0
77
77
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
SODIUM
ADSORPTION
RATIO
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
63.0
62.0
22.0
21.0
3.10
2
57.0
130
157
<1
38.0
.3
190
64.0
64.0
23.0
22.0
3.10
2
63.0
135
162
1
45.0
.3
200
66.0
68.0
22.0
23.0
3.10
2
66.0
154
186
1
51.0
.3
210
69.0
69.0
68.0
68.0
23.0
23.0
23.0
23.0
3.20
3.20
2
2
68.0
69.0
139
137
167
164
1
1
52.0
52.0
.3
.3
210
210
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
<1cl
.61
E480cl
451
<.20cl
2
.69
511
479
<.20
<1
.72
532
511
<.20
.02
3
1
.73
.73
537
536
509
509
<.20
<.20
<.01
<.01
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
.04
<.01
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
.05
.290
E.02cl
<5
E1k
E2k
<1
--
.250
<.02
<5
E8k
<1
<1
.03
.300
<.02
6
<1k
E1k
<1
---
.310
.310
<.02
<.02
13
10
E1k
--
E2k
--
<1
<1
55
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
11...
MAR
12...
APR
17...
MAY
21...
21...
Date
DEC
11...
MAR
12...
APR
17...
MAY
21...
21...
Date
DEC
11...
MAR
12...
APR
17...
MAY
21...
21...
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
70
<.5
<.5
<1
<1
77
77
<.5
<.5
<1
<1
77
79
<.5
<.5
<1
<1
79
79
80
80
<.5
<.5
<.5
<.5
<1
<1
<1
<1
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
<1
1
2
88.0
89.0
<1
<1
72
<1
2
2
84.0
86.0
<1
<1
<1
2
1
83.0
85.0
<1
<1
<1
<1
1
<1
1
1
87.0
86.0
88.0
88.0
<1
<1
<1
<1
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
<2
<2
<2
7
<2
<2
<1
1
<.10
<.1
1
<1
1
<2
<2
<2
9
<2
<2
<1
<1
<.10
<.1
1
<1
2
<2
<2
<2
7
<2
<2
<1
1
<.10
<.1
<1
<1
2
<2
<2
<2
<2
<2
<2
7
8
<2
<2
<2
<2
<1
<1
1
1
<.10
<.10
<.1
<.1
<1
1
<1
<1
2
2
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
2
<1
<1
740
<2
<2
<2
3
2
<1
<1
750
<2
<2
2
<2
1.0
28.6
2
<1
<1
780
<2
<2
11r
8r
1.0
28.9
2
2
<1
<1
<1
<1
790
780
<2
<2
<2
<2
2
4
2
3
1.0
--
27.8
--
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
c -- See laboratory comment
k -- Counts outside acceptable range
l -- Sample lab preparation problem
r -- Value verified by rerun, same method
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
11
434
56
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Water-quality measurements in the following table were made as part of the ADEQ Fixed-Station Network Program. The following analyses are quality-assurance samples
processed during the 2002 sampling period and are defined in the introductory text section titled "Water-Quality Control Data".
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
Date
Time
Sample
type
APR
17...
1010
2
.04
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
Date
APR
17...
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
<1
<2
Remark codes used in this report:
< -- Less than
<2
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
<.03
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
<2
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
<.1
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<1
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
<.20
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<1
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
.02
<.020
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
<2
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
<.02
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<3
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
<.5
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
<1
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
<.5
57
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C) , WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
OCTOBER
MIN
MEAN
MAX
NOVEMBER
MIN
MEAN
MAX
DECEMBER
MIN
MEAN
JANUARY
1
2
3
4
5
733
730
736
734
730
721
722
724
723
725
727
726
728
730
728
728
725
720
722
721
717
707
709
706
714
723
716
714
715
719
736
738
731
730
730
719
730
723
723
722
727
735
728
728
727
729
731
728
721
717
721
720
721
714
712
723
726
723
718
714
6
7
8
9
10
732
730
735
734
734
721
720
716
724
721
728
725
725
729
725
724
728
728
730
722
715
713
719
718
707
719
720
724
724
715
723
726
729
730
730
712
718
720
724
724
717
721
725
728
726
714
716
720
719
718
709
709
713
711
708
710
712
716
716
714
11
12
13
14
15
735
737
737
728
732
717
721
721
714
718
726
726
729
720
722
714
716
720
724
730
708
700
709
713
710
711
709
715
720
721
729
719
717
725
731
717
713
712
712
723
722
717
714
717
725
715
718
717
720
721
708
711
713
713
707
711
715
715
716
715
16
17
18
19
20
732
728
725
727
730
722
714
714
716
717
727
721
720
721
725
719
720
722
721
722
707
708
711
714
710
713
715
716
718
718
737
725
719
722
720
720
715
715
715
716
732
720
718
718
718
729
721
720
725
715
720
713
712
707
701
724
718
716
720
708
21
22
23
24
25
731
731
730
731
729
721
723
720
718
716
726
726
726
727
725
721
718
718
727
726
708
707
711
705
711
716
713
714
716
718
722
728
713
721
724
716
713
709
710
717
719
720
711
716
719
727
734
766
743
725
706
723
729
713
713
719
729
746
728
719
26
27
28
29
30
31
727
734
734
730
730
730
706
723
728
719
716
716
716
730
731
726
724
724
728
731
721
726
730
---
711
697
710
716
724
---
719
716
717
721
727
---
724
718
718
718
714
724
717
713
712
713
711
712
720
715
715
715
712
716
734
730
715
748
750
755
716
710
704
714
716
726
728
718
710
732
731
739
MONTH
737
706
725
731
697
717
738
709
721
766
701
720
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C) , WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
1
2
3
4
5
752
732
723
713
712
6
7
8
9
10
MIN
MEAN
MAX
MEAN
MAX
MEAN
MAX
726
717
710
708
709
734
722
718
710
711
795
793
769
757
753
735
761
720
731
744
762
781
740
743
748
806
803
801
814
812
788
792
793
794
794
797
798
798
805
804
823
828
858
832
811
800
802
808
811
794
811
814
837
824
798
714
714
715
717
717
707
708
707
712
705
711
712
711
714
708
746
770
804
825
801
738
736
770
767
750
743
749
790
807
780
811
820
822
842
844
805
789
781
755
830
809
805
810
801
840
818
821
829
865
862
798
811
812
799
813
808
816
822
818
826
11
12
13
14
15
712
714
717
717
716
702
705
714
713
713
707
708
716
715
715
796
777
768
840
846
750
765
758
758
795
777
771
764
810
819
830
825
824
817
802
809
799
812
790
790
817
809
817
809
794
827
822
840
835
796
806
785
782
796
786
818
807
817
809
791
16
17
18
19
20
714
716
720
746
731
711
709
710
717
719
713
712
712
728
726
829
812
804
795
795
772
789
785
782
774
789
796
793
791
784
861
830
890
856
855
796
799
830
798
795
834
815
864
834
823
805
805
802
809
811
787
799
795
798
795
796
802
799
801
803
21
22
23
24
25
741
734
732
746
756
717
705
713
732
741
728
717
720
738
746
785
784
787
834
824
778
778
782
787
787
782
781
784
813
803
862
851
834
823
832
823
812
813
803
792
850
827
821
814
810
814
812
849
812
805
798
778
796
789
774
808
798
825
801
783
26
27
28
29
30
31
762
753
748
-------
730
735
726
-------
746
743
736
-------
807
806
813
806
802
799
775
791
806
785
785
783
793
798
808
795
792
792
833
832
833
849
837
---
807
807
813
817
808
---
825
818
822
828
825
---
808
794
798
806
795
794
789
787
788
789
784
790
797
790
790
799
790
792
MONTH
762
702
721
846
720
783
890
755
817
865
774
806
FEBRUARY
MIN
MARCH
MIN
APRIL
MIN
MEAN
MAY
58
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C) , WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
JUNE
MIN
MEAN
MAX
JULY
MIN
MEAN
MAX
AUGUST
MIN
MEAN
SEPTEMBER
1
2
3
4
5
804
806
798
808
797
789
786
777
777
778
796
798
785
791
785
794
798
803
807
---
778
773
770
766
---
783
789
789
788
e787
782
774
778
785
774
769
768
758
771
764
775
771
771
778
769
760
760
766
770
764
745
746
753
747
744
752
752
759
758
754
6
7
8
9
10
796
798
803
813
825
774
782
785
793
764
784
792
791
800
799
792
778
782
787
804
772
774
773
769
760
780
777
778
777
779
791
789
779
776
776
762
768
766
758
766
772
775
772
770
772
759
769
761
772
777
746
741
741
746
743
751
754
751
763
760
11
12
13
14
15
826
797
787
802
802
779
772
768
782
797
798
784
776
789
799
804
787
783
774
785
763
766
769
768
773
782
775
775
771
779
777
765
776
778
777
765
753
760
757
763
772
761
764
768
770
761
763
771
759
758
748
752
748
735
738
752
758
761
748
746
16
17
18
19
20
799
793
795
788
789
785
777
781
780
782
794
786
788
784
785
795
791
791
791
788
768
759
767
765
773
784
774
781
777
781
777
772
772
780
785
761
758
758
760
765
770
763
765
769
775
759
769
756
764
760
746
746
744
745
733
752
756
752
754
744
21
22
23
24
25
794
797
802
785
779
786
776
775
775
765
791
789
786
781
771
788
777
797
789
777
767
766
759
757
762
777
772
778
772
769
781
779
772
772
767
757
762
766
760
756
768
772
769
766
763
779
771
788
787
777
740
756
751
742
739
749
761
762
754
750
26
27
28
29
30
31
793
792
783
785
784
---
779
776
775
774
766
---
784
787
780
781
774
---
780
780
782
782
774
777
761
760
767
771
759
767
771
772
774
777
768
773
769
772
771
782
785
765
757
762
760
760
741
753
762
766
767
766
760
757
763
767
769
764
761
---
736
742
740
735
735
---
745
747
749
747
743
---
MONTH
826
764
788
---
---
778
791
741
768
788
733
753
e
Estimated
59
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
OCTOBER
MIN
MEAN
MAX
NOVEMBER
MIN
MEAN
MAX
DECEMBER
MIN
MEAN
JANUARY
1
2
3
4
5
10.1
10.1
10.1
10.1
10.0
9.6
9.4
9.5
9.5
9.5
9.9
9.8
9.8
9.8
9.8
9.2
9.2
9.4
9.4
9.5
8.8
8.7
8.9
8.8
9.1
9.0
9.0
9.1
9.1
9.3
9.1
9.1
9.1
9.1
9.1
8.7
8.9
8.8
8.8
8.7
8.9
9.0
9.0
8.9
8.9
9.4
9.2
9.3
9.4
9.3
9.1
8.9
9.0
9.1
9.0
9.2
9.1
9.1
9.2
9.2
6
7
8
9
10
10.0
10.3
10.1
9.9
9.7
9.5
9.6
9.5
9.4
9.1
9.8
9.9
9.8
9.6
9.5
9.6
9.5
9.3
9.2
9.4
9.1
9.1
9.0
8.8
8.9
9.4
9.3
9.1
9.0
9.2
9.0
9.0
8.9
8.8
9.1
8.8
8.7
8.6
8.5
8.6
8.9
8.9
8.8
8.6
8.8
9.4
9.3
9.3
9.3
9.3
9.1
9.0
9.0
9.0
9.0
9.2
9.2
9.2
9.2
9.2
11
12
13
14
15
9.8
9.8
9.8
10.0
9.9
9.1
9.3
9.3
9.4
9.4
9.5
9.6
9.6
9.7
9.7
9.5
9.4
9.3
9.1
9.2
9.1
9.0
8.9
8.7
8.7
9.3
9.2
9.1
8.9
8.9
9.3
9.3
9.2
9.1
9.1
8.9
9.0
8.8
8.8
8.6
9.1
9.2
9.0
9.0
9.0
9.3
9.2
9.1
9.0
9.1
8.9
8.9
8.7
8.7
8.7
9.1
9.0
8.9
8.9
8.9
16
17
18
19
20
9.8
9.9
9.9
9.9
9.8
9.2
9.3
9.3
9.3
9.2
9.6
9.6
9.6
9.6
9.5
9.2
9.2
9.2
9.1
9.1
8.8
8.8
8.8
8.8
8.6
9.1
9.1
9.0
9.0
8.9
8.9
9.3
9.5
9.7
9.7
8.2
8.9
9.1
9.3
9.4
8.4
9.1
9.3
9.5
9.6
8.9
9.0
8.9
8.8
8.8
8.7
8.6
8.6
8.3
8.4
8.8
8.8
8.7
8.5
8.6
21
22
23
24
25
9.8
9.8
9.8
9.6
9.7
9.2
9.4
9.3
9.1
9.0
9.5
9.6
9.5
9.4
9.4
9.2
9.3
9.2
8.8
8.8
8.7
8.8
8.8
8.4
8.3
9.0
9.1
8.9
8.7
8.5
9.6
9.5
9.6
9.6
9.4
9.3
9.1
9.4
9.3
9.0
9.5
9.3
9.5
9.4
9.2
8.8
8.7
8.5
8.5
8.5
8.3
8.3
8.0
8.0
8.1
8.6
8.5
8.3
8.2
8.3
26
27
28
29
30
31
9.8
9.8
9.7
9.6
9.3
9.4
9.1
9.3
9.2
9.1
9.0
9.0
9.5
9.6
9.5
9.4
9.1
9.2
8.9
8.9
9.2
9.2
9.2
---
8.3
8.3
8.5
8.9
8.9
---
8.6
8.6
8.8
9.0
9.0
---
9.5
9.6
9.7
9.7
9.7
9.6
8.9
9.3
9.4
9.5
9.5
9.3
9.2
9.5
9.5
9.6
9.6
9.5
8.5
8.6
8.6
8.4
8.3
8.1
8.1
8.2
8.2
8.1
7.9
7.6
8.3
8.4
8.4
8.2
8.1
7.8
MONTH
10.3
9.0
9.6
9.6
8.3
9.0
9.7
8.2
9.2
9.4
7.6
8.7
DAY
MAX
MIN
MEAN
MAX
1
2
3
4
5
8.1
8.1
8.0
8.1
8.0
7.7
7.7
7.6
7.6
7.6
7.9
7.9
7.8
7.9
7.8
8.1
7.9
8.1
8.2
8.2
6
7
8
9
10
8.0
8.0
7.9
7.8
7.9
7.5
7.5
7.5
7.4
7.4
7.8
7.8
7.7
7.6
7.7
11
12
13
14
15
7.9
7.9
7.9
7.9
7.9
7.4
7.4
7.4
7.5
7.5
16
17
18
19
20
8.0
8.0
7.9
8.0
8.2
21
22
23
24
25
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
MEAN
MAX
MEAN
MAX
7.4
7.0
7.3
7.4
7.4
7.6
7.4
7.8
7.8
7.9
9.1
9.1
9.2
9.2
9.1
8.1
8.1
8.1
8.1
8.1
8.7
8.6
8.7
8.7
8.7
9.4
9.2
9.3
9.5
9.7
8.1
8.1
8.2
8.2
8.3
8.8
8.7
8.8
8.9
9.1
8.3
8.4
8.3
8.2
8.3
7.6
7.7
7.7
7.3
7.6
8.0
8.1
7.9
7.8
8.0
8.9
9.2
9.1
9.3
9.0
8.2
8.2
8.2
8.2
8.3
8.6
8.7
8.7
8.8
8.6
9.7
9.6
9.4
9.6
9.5
8.4
8.3
8.3
8.3
8.3
9.1
9.0
8.9
8.9
8.9
7.7
7.7
7.7
7.7
7.7
8.6
8.5
8.6
8.4
8.4
7.7
7.8
7.8
7.5
7.4
8.2
8.1
8.2
7.9
8.0
9.3
9.0
9.4
9.3
9.1
8.2
8.3
8.2
8.2
8.4
8.8
8.7
8.8
8.8
8.7
9.7
9.7
9.5
9.8
9.6
8.3
8.3
8.4
8.4
8.5
9.0
9.1
9.0
9.1
9.1
7.5
7.5
7.6
7.4
7.6
7.7
7.7
7.7
7.7
7.9
8.3
8.4
8.6
8.6
8.6
7.6
7.6
7.7
7.7
7.8
7.9
8.0
8.2
8.2
8.3
9.1
9.3
9.2
9.2
8.8
8.1
8.1
8.0
7.8
8.0
8.6
8.8
8.6
8.6
8.4
9.9
9.8
9.9
9.7
9.8
8.5
8.5
8.5
8.5
8.5
9.2
9.2
9.3
9.2
9.2
8.1
8.2
8.1
8.3
8.2
7.6
7.6
7.7
7.6
7.6
7.9
7.9
7.9
8.0
7.9
8.7
8.8
8.7
8.6
8.8
7.8
8.0
8.0
7.9
7.9
8.3
8.5
8.4
8.2
8.4
9.2
9.4
9.2
9.4
9.6
7.8
8.0
8.1
8.2
8.4
8.6
8.7
8.7
8.8
9.0
9.5
9.7
9.4
9.8
9.9
8.4
8.1
8.2
8.3
8.7
8.9
8.9
8.8
9.1
9.4
26
27
28
29
30
31
8.1
8.2
8.2
-------
7.4
7.5
7.5
-------
7.8
7.9
7.9
-------
8.9
8.9
9.0
9.1
9.1
9.1
7.9
7.9
8.0
8.0
8.0
8.1
8.5
8.5
8.5
8.6
8.6
8.7
9.2
9.1
9.4
9.6
9.6
---
8.3
8.1
8.1
8.2
8.2
---
8.8
8.6
8.8
8.9
8.9
---
9.8
10.0
10.1
10.0
10.1
10.0
8.7
8.8
9.0
8.9
8.9
9.0
9.3
9.5
9.6
9.6
9.6
9.6
MONTH
8.3
7.4
7.8
9.1
7.0
8.1
9.6
7.8
8.7
10.1
8.1
9.1
FEBRUARY
MIN
MARCH
MIN
APRIL
MIN
MEAN
MAY
60
COLORADO RIVER MAIN STEM
09380000 COLORADO RIVER AT LEES FERRY, AZ—CONTINUED
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
1
2
3
4
5
10.0
9.5
9.3
9.9
10.0
6
7
8
9
10
MIN
MEAN
MAX
MEAN
MAX
MEAN
MAX
8.8
8.5
8.6
8.5
8.5
9.4
9.0
9.0
9.1
9.2
9.9
10.0
9.4
10.1
---
8.8
8.7
8.7
8.6
---
9.3
9.3
9.1
9.3
e9.3
9.8
9.6
10.1
9.7
10.0
9.0
9.0
8.8
8.6
9.1
9.4
9.3
9.4
9.2
9.5
10.2
10.2
10.1
10.1
10.0
9.2
9.6
9.5
9.5
9.5
9.5
9.9
9.9
9.9
9.8
10.0
10.1
10.2
10.2
10.0
8.5
8.5
8.7
8.7
8.3
9.2
9.3
9.4
9.4
9.1
10.1
10.1
10.1
10.1
10.0
8.8
8.9
8.9
9.0
9.0
9.4
9.4
9.4
9.5
9.4
9.4
9.9
9.8
9.9
10.1
9.0
8.8
8.7
8.7
8.7
9.2
9.3
9.2
9.2
9.3
10.2
9.8
10.1
9.9
10.0
9.5
9.3
9.3
9.2
9.4
9.7
9.5
9.7
9.6
9.8
11
12
13
14
15
9.9
10.1
10.2
10.1
10.1
8.4
8.4
8.7
8.5
8.6
9.1
9.2
9.4
9.3
9.3
10.1
10.1
10.1
10.0
10.0
8.8
8.8
8.7
8.9
8.9
9.3
9.4
9.3
9.4
9.4
10.1
10.1
10.1
10.2
10.1
8.8
9.0
9.0
8.7
8.9
9.4
9.5
9.4
9.4
9.4
9.9
9.8
10.1
10.0
10.1
9.6
9.5
9.3
9.3
9.5
9.8
9.7
9.7
9.8
9.8
16
17
18
19
20
10.1
10.1
10.1
10.1
10.1
8.6
8.6
8.5
8.6
8.6
9.3
9.3
9.2
9.3
9.3
9.7
9.6
9.8
10.0
9.9
9.0
8.9
8.8
8.8
8.8
9.3
9.2
9.2
9.3
9.3
10.0
10.0
10.0
9.6
9.6
9.0
9.0
9.0
8.9
9.0
9.5
9.5
9.5
9.3
9.3
10.2
10.1
9.9
9.8
10.0
9.6
9.4
9.4
9.4
9.4
10.0
9.8
9.7
9.6
9.7
21
22
23
24
25
9.8
10.1
10.1
10.1
10.1
8.7
8.6
8.6
8.6
8.7
9.2
9.3
9.3
9.3
9.4
10.3
10.1
10.0
9.9
9.9
8.8
8.9
9.1
9.1
9.0
9.4
9.5
9.5
9.5
9.5
10.0
10.0
9.9
10.0
10.1
9.3
8.9
8.8
8.8
8.8
9.6
9.4
9.2
9.3
9.4
10.0
10.0
10.0
9.9
9.8
9.4
9.5
9.4
9.3
9.3
9.8
9.8
9.8
9.7
9.6
26
27
28
29
30
31
9.9
10.1
10.1
10.1
10.2
---
8.7
8.6
8.6
8.6
8.7
---
9.3
9.3
9.3
9.3
9.4
---
9.7
10.0
10.4
9.9
10.1
10.1
9.1
8.9
9.1
8.6
8.7
8.9
9.4
9.4
9.6
9.3
9.3
9.4
10.0
9.9
9.7
10.0
10.0
9.9
8.8
8.9
8.8
9.2
9.3
9.0
9.4
9.3
9.2
9.5
9.7
9.4
10.0
10.1
9.8
9.7
9.8
---
9.5
9.5
9.5
9.3
9.3
---
9.8
9.8
9.7
9.5
9.6
---
MONTH
10.2
8.3
9.3
---
---
9.4
10.2
8.6
9.4
10.2
9.2
9.7
JUNE
e
Estimated
MIN
JULY
MIN
AUGUST
MIN
MEAN
SEPTEMBER
61
PARIA RIVER BASIN
09382000 PARIA RIVER AT LEES FERRY, AZ
LOCATION.--Lat 36° 52'20", long 111° 35'38", in NW1/4NE1/4 sec. 13, T.40 N., R.7 E., Coconino County, Hydrologic Unit 14070007, on left bank 0.6 mi northwest of Lees Ferry,
and 1.1 mi upstream from mouth.
DRAINAGE AREA.--1,410 mi2.
PERIOD OF RECORD.--Oct. 1923 to current year.
REVISED RECORDS.--WSP 1925: 1958(M), drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,123.68 ft above sea level. Prior to Oct. 5, 1925, nonrecording gage at site 2,000 ft upstream at different datum.
Oct. 13,1925, to Sept. 11, 1929, nonrecording gage at present site and datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Diversions above station for irrigation of about 3,300 acres, mostly in southern Utah.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,100 ft3/s Oct. 5, 1925, gage height, 16.3 ft, from floodmark, from rating curve extended above 2,000 ft3/s
on basis of float-area measurement of peak flow; maximum gage height, 16.65 ft Sept. 9, 1980; minimum daily discharge, 1 ft3/s in most years prior to 1931.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,400 ft3/s and (or) maximum (*):
Date
Sept. 7 ..........
Time
Discharge (ft3/s)
1130
*554
Gage height (ft)
*7.36
Minimum daily discharge, 2.4 ft3/s Aug. 13.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
4.9
4.9
4.8
4.8
5.0
8.7
9.1
9.1
9.0
9.0
16
14
18
17
18
23
22
20
19
19
7.7
8.4
7.4
10
13
13
11
9.4
11
15
4.4
4.5
5.1
4.9
5.2
3.7
3.8
4.1
4.0
3.8
3.4
3.1
3.5
3.6
3.4
2.9
2.8
3.0
3.2
3.1
2.7
3.0
47
e32
e6.2
3.1
3.0
3.2
3.4
3.4
6
7
8
9
10
5.1
10
5.8
13
11
9.3
9.9
10
14
14
15
14
15
14
13
15
16
20
20
20
16
16
17
18
15
15
14
14
15
11
5.4
5.3
5.4
5.3
5.5
3.9
3.7
3.5
3.5
3.8
3.4
3.4
3.1
2.8
2.9
3.2
2.8
2.8
2.8
2.8
e4.6
e3.7
3.1
2.9
2.8
4.2
e157
e342
e153
e41
11
12
13
14
15
7.3
6.1
7.0
7.3
8.4
17
16
15
15
16
15
17
15
9.9
7.4
18
15
17
18
16
12
15
18
18
17
11
12
10
11
7.9
4.9
4.8
4.8
5.4
5.5
3.6
3.7
3.9
4.0
3.9
3.2
3.3
3.4
3.4
3.2
2.9
2.9
2.8
2.8
2.7
2.7
2.6
2.4
2.5
2.6
16
17
18
19
20
8.5
8.9
8.8
8.1
7.7
15
15
14
14
14
e6.2
e14
e17
9.6
10
17
17
e12
e10
e9.0
16
16
17
17
16
8.3
12
13
11
10
4.5
4.5
4.4
4.7
5.3
3.9
3.6
3.7
3.8
3.8
3.0
3.1
3.0
3.1
3.3
2.8
2.9
2.9
3.1
3.1
2.7
2.5
2.5
2.5
3.3
9.8
7.3
6.5
6.2
6.2
21
22
23
24
25
7.4
7.8
8.0
7.2
7.6
14
14
14
15
23
11
13
16
14
11
e10
e10
21
9.9
8.8
15
15
14
14
14
9.5
8.7
7.9
7.2
7.2
5.2
4.9
4.5
4.4
4.0
3.7
3.6
4.0
4.0
4.1
3.0
3.0
3.0
3.3
3.2
3.1
3.0
2.8
2.8
4.4
3.6
2.7
2.7
2.8
2.8
5.6
5.4
5.2
5.0
4.7
26
27
28
29
30
31
7.5
7.9
8.3
8.5
8.5
8.7
22
16
12
9.5
16
---
12
13
16
27
30
25
10
12
19
29
19
17
13
12
13
-------
7.6
6.9
6.2
4.9
4.6
4.6
3.9
3.9
4.1
3.9
3.8
---
4.1
4.0
3.9
3.7
3.6
3.5
3.2
3.2
3.2
3.1
3.0
---
3.1
3.0
2.8
2.6
2.8
2.8
2.8
2.7
2.9
3.0
3.0
3.0
4.7
4.5
4.3
37
e163
---
234.8
7.574
13
4.8
466
408.6
13.62
23
8.7
810
508.7
16.41
29
8.8
1010
400.5
14.30
18
7.4
794
309.9
9.997
15
4.6
615
142.4
4.747
5.5
3.8
282
117.9
3.803
4.1
3.5
234
95.8
3.193
3.6
2.8
190
91.5
2.952
4.4
2.6
181
166.3
5.365
47
2.4
330
1127.7
37.59
342
3.0
2240
7.192
58.3
1972
1.97
1926
24.14
172
1936
2.32
1939
53.63
237
1932
4.51
1976
53.01
424
1927
4.18
1968
TOTAL
MEAN
MAX
MIN
AC-FT
DEC
463.1
14.94
30
6.2
919
JAN
e18
e14
67
25
15
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1924 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
30.28
288
1926
5.99
1956
23.33
123
1958
10.1
1991
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
20.91
69.4
1967
8.81
1931
22.49
96.7
1969
8.03
1931
37.46
242
1980
14.3
2002
FOR 2001 CALENDAR YEAR
5954.2
16.31
189
2.7
2.9
11810
28
12
3.6
38.50
216
1979
8.86
1972
20.68
93.3
1979
4.75
2002
10.46
52.4
1934
2.03
1927
FOR 2002 WATER YEAR
4067.2
11.14
Jun 27
Jun 13
Jun 16
342
2.4
2.5
8070
17
7.0
2.9
Sep 8
Aug 13
Aug 13
WATER YEARS 1924 - 2002
28.47
65.1
11.1
6750
1.0
1.0
20620
42
14
3.7
1980
2002
Sep 13 1927
Jun 25 1926
Jul 16 1927
62
PARIA RIVER BASIN
09382000 PARIA RIVER AT LEES FERRY, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Oct. 1948 to Sept. 1976, Sept. 1990 to current year.
INSTRUMENTATION.--Automatic-pumping sampler since Sept. 1990.
REMARKS.--Suspended-sediment total and sand discharge computed from sample data and by interpretation of a sample based suspended-sediment and streamflow
discharge curve. Record for days when instantaneous discharge over the crest of the dam exceeds 30 ft3/s from Sept. 1990 to current year.
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
1470
---------
e24600
e9930
e5560
-----
-----------
-----------
-----------
476
390
-------
-----------
-----------
-----------
-----------
-----------
-----------
6
7
8
9
10
-----------
-----------
-----------
-----------
--389
577
-----
--939
11900
4690
11000
------445
---
-----------
-----------
-----------
------e79900
e21600
-----------
11
12
13
14
15
26500
e7000
-------
-----------
-----------
-----------
-----------
12400
4850
1900
e804
e469
-----------
-----------
-----------
--------e25900
15400
--16800
18700
7300
------e8370
---
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--e17600
-------
21
22
23
24
25
--102000
e426000
e384000
e16400
-----------
-----------
-----------
-----------
--1120
2010
2070
1750
-----------
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
3070
69000
1310000
e102000
e45000
e64200
-------------
-------------
-------------
-------------
1370
-----------
-------------
-------------
24200
e32600
---------
-------------
-------------
-------------
MAX
MIN
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
e
Estimated
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
----7750
e1400
---
-----------
6
7
8
9
10
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--e32200
e200000
e77700
e10700
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
----14400
-----
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
------16400
e46900
---
MAX
MIN
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
e
Estimated
63
PARIA RIVER BASIN
09382000 PARIA RIVER AT LEES FERRY, AZ—CONTINUED
SEDIMENT DISCHARGE, SUSPENDED, SIEVE DIAM. GREATER THAN .062 MM (TONS/DAY)
WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
7.4
---------
e1250
e451
e16
-----
-----------
-----------
-----------
41
19
-------
-----------
-----------
-----------
-----------
-----------
-----------
6
7
8
9
10
-----------
-----------
-----------
-----------
--51
58
-----
--55
1080
291
1300
------31
---
-----------
-----------
-----------
------e19400
e1370
-----------
11
12
13
14
15
3890
e1120
-------
-----------
-----------
-----------
-----------
1590
346
72
e15
e7.7
-----------
-----------
-----------
--------e2280
985
--433
918
36
------e868
---
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--e1210
-------
21
22
23
24
25
--44100
e201000
162000
2390
-----------
-----------
-----------
-----------
--29
50
71
72
-----------
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
111
14200
426000
e8740
e2330
e11200
-------------
-------------
-------------
-------------
44
-----------
-------------
-------------
981
e3030
---------
-------------
-------------
-------------
e
Estimated
SEDIMENT DISCHARGE, SUSPENDED, SIEVE DIAM. GREATER THAN .062 MM (TONS/DAY)
WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
----1210
e26
---
-----------
6
7
8
9
10
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--e7040
e40400
e5150
e154
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
----1590
-----
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
------3320
e8530
---
e
Estimated
64
COLORADO RIVER MAIN STEM
09383000 COLORADO RIVER AT COMPACT POINT, NEAR LEES FERRY, AZ
LOCATION.--Lat 36° 51'05", long 111° 36'21", in NE1/4SE1/4 sec. 23, T.40 N., R.7 E., Coconino County, Hydrologic Units 14070006, 15010001, (see REMARKS), 1 mi downstream
from Paria River, 1.4 mi downstream from gage on Colorado River at Lees Ferry, and 29 mi downstream from Utah-Arizona State line.
DRAINAGE AREA.--112,000 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Oct. 1913 to current year (monthly discharge only). Prior to Oct. 1950, published in WSP 1313.
DETERMINATION OF DISCHARGE.--There is no gage. Monthly and yearly discharge computed as the sum of flow at stations on Colorado River and Paria River at Lees Ferry.
REMARKS.--This location on the Colorado River is the dividing point between the Upper Basin and Lower Basin, as defined in the Colorado River Compact of 1922. Flow
substantially regulated by Lake Powell beginning Mar. 13, 1963. (See elsewhere in this report.)
AVERAGE DISCHARGE.--49 years (water years 1914–62), 17,760 ft3/s, 12,870,000 acre-ft/yr; 38 years (water years 1965–2002), 14,130 ft3/s, 10,240,000 acre-ft/yr.
Monthly discharge, water year October 2001 to September 2002
Month
Mean, in cubic feet per
second
October ................................................................
9,877
607,300
November ............................................................
10,260
610,400
December.............................................................
13,050
802,600
Calendar year 2001...........................................
11,190
8,103,000
January.................................................................
13,120
806,500
February...............................................................
10,890
605,100
March...................................................................
9,951
611,900
April.....................................................................
10,350
615,800
May......................................................................
9,844
605,300
June......................................................................
12,810
762,000
July ......................................................................
14,920
917,600
August .................................................................
14,780
908,900
September ............................................................
8,306
494,300
Water year 2002................................................
11,530
8,348,000
NOTE.--Record shown is sum of flow at stations on Colorado River and Paria River at Lees Ferry.
Runoff, in acre-feet
65
LITTLE COLORADO RIVER BASIN
09384000 LITTLE COLORADO RIVER ABOVE LYMAN LAKE, NEAR ST. JOHNS, AZ
LOCATION.--Lat 34° 18'52", long 109° 21'42", in SW1/4SE1/4 sec. 27, T.11 N., R.28 E., Apache County, Hydrologic Unit 15020001, on left bank 0.75 mi downstream from Coyote
Creek, 6 mi upstream from Lyman Dam, and 15 mi south of St. Johns.
DRAINAGE AREA.--706 mi2, of which 2.5 mi2 is noncontributing.
PERIOD OF RECORD.--Apr. 1940 to current year. Prior to Oct. 1975 published as "above Lyman Reservoir."
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 6,010 ft above sea level, from topographic map. Prior to Dec. 7, 1976, water-stage recorder at site
0.4 mi downstream at datum approximately 20 ft lower, used as supplemental gage Mar. 21, 1980, to Apr. 21, 1987. See WSP 1313 for history of changes prior to 1950.
REMARKS.--Records fair for estimated daily discharges, which are poor. Flow regulated by many small reservoirs—combined capacity, about 15,500 acre-ft. Diversions for
irrigation of about 6,700 acres above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,000 ft3/s July 25, 1940, gage height, 17.1 ft, datum then in use, from floodmarks, by slope-area measurement
of peak flow and reservoir inflow studies; maximum gage height, 18.6 ft, Sept. 12, 1975, at previous site (from graph recorded to 18.4 ft); no flow at times.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 400 ft3/s and (or) maximum (*):
Date
Sept. 11 .........
Time
Discharge (ft3/s)
1230
*539
Gage height (ft)
*5.14
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
DEC
JAN
FEB
MAR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.71
0.73
0.71
0.78
0.69
2.3
2.2
2.2
2.4
2.5
NOV
e3.2
e3.3
e3.4
3.8
3.8
e4.9
e4.7
e4.2
e4.1
e4.0
e4.8
e4.9
e4.7
e4.5
e4.1
3.4
3.5
3.2
2.9
3.1
4.3
3.9
3.2
2.7
2.7
APR
0.21
0.21
0.21
0.23
0.69
0.08
0.08
0.09
0.07
0.07
e0.01
e0.01
e0.01
e0.01
e0.01
0.88
0.59
5.3
7.3
8.2
0.11
0.09
0.07
0.17
0.11
6
7
8
9
10
0.81
1.4
1.9
1.8
2.1
2.5
2.3
2.1
1.6
1.2
e3.2
e3.1
e3.0
e3.1
e3.1
e4.1
e4.4
e4.7
e4.8
e5.7
e3.9
e3.8
e3.7
e3.6
e3.5
3.4
3.7
4.2
4.3
4.6
2.7
3.4
3.9
4.2
3.6
0.65
0.60
0.55
0.72
0.54
0.05
0.04
0.04
0.03
0.04
e0.01
e0.01
e0.01
e0.01
e0.01
9.9
12
11
13
9.9
11
12
13
14
15
2.1
2.1
2.0
2.1
2.3
1.1
0.98
0.95
0.99
0.99
e3.3
e3.5
e3.8
e4.0
e4.0
e5.7
5.2
5.0
4.3
4.5
e3.8
4.1
4.4
4.3
4.2
4.3
4.3
4.4
4.4
4.5
3.2
2.7
2.5
2.2
2.0
0.46
0.48
0.71
1.0
1.8
0.03
0.03
0.03
0.03
0.02
e0.01
e0.01
e0.01
e0.01
e0.01
7.7
6.3
5.3
4.4
2.8
16
17
18
19
20
2.4
2.3
2.6
2.4
2.2
1.1
1.3
1.1
1.0
1.0
e3.8
e3.6
e3.8
e4.0
e4.0
4.0
4.2
4.0
3.4
3.4
4.4
4.5
4.2
4.3
3.8
3.9
3.3
3.2
3.5
3.6
2.1
2.1
1.3
0.69
0.45
1.1
0.89
0.41
0.46
0.45
0.02
e0.01
0.02
0.02
e0.01
0.01
0.03
0.03
0.02
0.02
0.31
0.24
0.32
0.76
2.8
7.9
5.9
12
12
4.7
21
22
23
24
25
2.3
2.6
2.8
2.9
2.8
1.0
1.1
1.3
1.6
2.1
e4.1
e3.8
e3.8
e4.7
e4.0
3.0
e3.2
e3.4
3.5
e4.1
3.4
3.3
3.6
3.4
3.4
3.5
3.0
2.7
2.6
2.3
0.40
0.37
0.31
0.29
0.30
0.37
0.32
0.37
0.23
0.21
e0.01
e0.01
e0.01
e0.01
e0.01
0.01
0.01
0.02
0.03
0.03
0.76
0.31
0.12
0.09
0.08
3.4
4.0
4.2
3.9
3.4
26
27
28
29
30
31
2.9
2.5
2.4
2.4
2.3
2.2
2.5
2.4
2.7
2.6
e2.9
---
e4.2
e3.9
e4.2
e4.7
e5.0
e5.0
e4.5
e5.5
5.1
4.5
e4.1
e4.4
3.5
3.2
3.3
-------
2.2
3.0
3.1
3.4
3.7
3.7
0.28
0.26
0.25
0.23
0.21
---
0.17
0.14
0.11
0.16
0.13
0.09
e0.01
0.02
0.03
0.02
e0.01
---
0.01
9.9
40
15
4.7
1.6
0.06
0.05
0.04
0.05
0.07
0.07
3.3
3.2
2.0
1.9
2.2
---
TOTAL
MEAN
MAX
MIN
AC-FT
62.23
2.007
2.9
0.69
123
52.01
1.734
2.9
0.95
103
118.2
3.813
5.0
3.0
234
134.6
4.342
5.7
3.0
267
110.6
3.950
4.9
3.2
219
108.9
3.513
4.6
2.2
216
56.74
1.891
4.3
0.21
113
14.67
0.473
1.8
0.09
29
0.95
0.032
0.09
0.01
1.9
71.57
2.309
40
0.01
142
110.70
3.571
13
0.04
220
320.86
10.70
112
0.07
636
9.232
95.4
1973
0.010
1959
9.720
40.3
1967
0.000
1963
22.83
143
1955
0.59
2000
12.94
105
1946
0.017
1960
0.22
0.28
4.2
0.81
0.80
112
75
24
17
12
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
9.297
213
1984
0.074
1957
7.992
37.8
1987
0.32
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
9.928
46.6
1979
0.83
1957
10.57
38.9
1942
2.08
1957
12.51
43.3
1962
2.84
1957
FOR 2001 CALENDAR YEAR
6697.57
18.35
200
0.11
0.19
13280
56
4.0
1.00
30.17
182
1985
1.89
1990
92.88
397
1979
1.26
1996
35.73
374
1941
0.44
2000
FOR 2002 WATER YEAR
1162.03
3.184
Apr 3
Jul 5
Jun 30
112
0.00
0.01
2300
4.7
2.4
0.02
Sep 11
Jun 17
Jun 20
WATER YEARS 1941 - 2002
21.96
71.6
2.94
1660
0.00
0.00
15910
43
6.8
1.1
1973
1961
Oct 2 1983
Sep 10 1950
Sep 10 1950
66
LITTLE COLORADO RIVER BASIN
09385700 LITTLE COLORADO RIVER BELOW SALADO SPRINGS, NEAR ST. JOHNS, AZ
LOCATION.--Lat 34° 27'02", long 109° 21'42", in NW1/4SE1/4SE1/4 sec. 10, T.12 N., R.28 E., Apache County, Hydrologic Unit 15020002, 2.2 miles upstream from the State
Highway 61 bridge in St. Johns.
DRAINAGE AREA.--845 mi2.
PERIOD OF RECORD.--Jan. 1985 to Dec. 1986, July 2002 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,785 ft. above sea level, from topographic map.
REMARKS.--Records good except for estimated daily discharges and those greater than 50 ft3/s, which are poor. Flow partially regulated by Lyman Lake. Many diversions
for irrigation above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 478 ft3/s, Sept. 8, 2002, gage height, 10.84 ft., from an extension of the rating curve. Minimum daily 1.1 ft3/s,
Sept. 5, 2002.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 120 ft3/s and (or) maximum (*):
Time
Discharge (ft3/s)
Sept. 8...........
1515
*478
*10.84
Sept. 10.........
1845
191
10.26
Sept. 18.........
1515
158
10.15
Date
Gage height (ft)
Minimum daily discharge, 1.1 ft3/s, Sept. 5.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
7.7
8.1
8.5
8.8
9.2
1.3
1.2
1.2
1.2
1.1
6
7
8
9
10
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
33
16
4.3
1.7
1.4
3.2
1.5
18
11
21
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
2.1
2.2
2.7
4.0
4.8
e70
e24
e7.5
3.8
2.7
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
------3.3
2.1
5.1
5.5
4.9
3.0
2.0
2.0
1.7
e42
e32
14
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
1.7
1.5
1.5
1.5
2.2
1.6
2.7
5.1
5.0
5.1
13
e11
e9.0
e8.0
7.3
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
1.3
21
5.2
2.5
5.5
7.9
5.0
5.0
5.2
5.9
4.7
1.6
6.6
5.9
5.0
4.3
3.9
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
---------------
---------------
---------------
---------------
---------------
---------------
---------------
---------------
---------------
---------------
181.9
5.868
33
1.4
5.0
361
0.01
334.4
11.15
70
1.1
6.3
663
0.01
e
Estimated
67
LITTLE COLORADO RIVER BASIN
09386020 CARRIZO WASH NEAR ST. JOHNS, AZ
LOCATION.--Lat 34° 36'53", long 109° 19'04", T.14 N., R.28 E., unsurveyed, Apache County, Hydrologic Unit 1502002, on east side of Carrizo Wash bridge pier on
U.S. Highway 666 (AZ Highway 61), 8.5 mi north of St. Johns.
DRAINAGE AREA.--Not determined.
PERIOD OF RECORD.--Aug. 1998 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 5,610.5 ft above sea level, from ADOT benchmark on highway bridge.
REMARKS.--No estimated daily discharges. Records fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,070 ft3/s Aug. 9, 2001, gage height, 9.86 ft, from an extension of the rating curve based on slope-area
measurement. Minimum daily discharge, no flow most of each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 200 ft3/s and (or) maximum (*):
Date
Time
Discharge (ft3/s)
Gage height (ft)
Date
Time
Discharge (ft3/s)
Gage height (ft)
Aug. 5............
2315
472
9.19
Sept. 11.........
2215
1,150
9.98
Aug. 20..........
2015
259
8.49
Sept. 18.........
2145
*1,190
*10.04
Minimum daily discharge, no flow for most of year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.0
0.73
51
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.96
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
10
0.00
0.00
0.00
0.00
0.00
0.00
0.12
2.0
67
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
19
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.8
0.00
2.5
0.00
0.00
0.00
0.00
16
8.6
4.7
1.1
0.04
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
1.7
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.96
0.031
0.96
0.00
1.9
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
2.80
0.090
2.8
0.00
5.6
107.93
3.482
51
0.00
214
2470.96
82.37
733
0.00
4900
0.001
0.004
2000
0.000
1999
0.804
3.13
1999
0.000
2000
19.72
55.3
2001
2.23
2000
18.26
82.4
2002
0.000
1998
718
733
140
33
13
e6.2
4.2
378
303
43
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.296
1.11
2001
0.000
2000
0.005
0.020
2001
0.000
1999
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.000
0.000
1999
0.000
1999
0.000
0.000
1999
0.000
1999
0.000
0.000
1999
0.000
1999
0.000
0.000
1999
0.000
1999
FOR 2001 CALENDAR YEAR
1945.16
5.329
387
0.00
0.00
3860
0.00
0.00
0.00
0.000
0.000
1999
0.000
1999
0.000
0.000
1999
0.000
1999
FOR 2002 WATER YEAR
2582.65
7.076
Aug
Jan
Jan
9
1
1
733
0.00
0.00
5120
0.00
0.00
0.00
Sep 12
Oct 1
Oct 1
WATER YEARS 1998 - 2002
3.643
7.08
2002
0.19
2000
733
Sep 12 2002
0.00 Aug 27 1998
0.00 Aug 27 1998
2640
0.00
0.00
0.00
68
LITTLE COLORADO RIVER BASIN
09386030 LITTLE COLORADO RIVER ABOVE ZION RESERVOIR, NEAR ST. JOHNS, AZ
LOCATION.--Lat 34° 35'01", long 109° 24'23", in SE1/4SE1/4 sec. 30, T.14 N., R.28 E., Apache County, Hydrologic Unit 15020002, on downstream side of center pier of bridge
on private road, 1.5 mi upstream from Carrizo Creek, 4 mi upstream from Zion Reservoir, and 5.8 mi northwest of St. Johns.
DRAINAGE AREA.--1,007 mi2, of which 2.5 mi2 is noncontributing.
PERIOD OF RECORD.--Oct. 1975 to current year.
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 5,560 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Diversions above station for irrigation of about 10,200 acres, including 1,500 acres served by
Lyman Canal. Regulation by many reservoirs above station (combined capacity, 46,900 acre-ft), the largest of which is Lyman Lake. Records do not include flow bypassing
the station through an abandoned irrigation ditch during higher stages.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 590 ft3/s July 31, 1994, gage height, 4.16 ft; minimum daily, 0.00 ft3/s Sept. 18–21, 2001.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 489 ft3/s Sept. 11 at 0845, gage height, 3.94 ft. Minimum daily discharge, less than 0.01 ft3/s on many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
1
2
3
4
5
0.06
0.06
0.06
0.06
0.06
0.05
0.08
0.11
0.19
0.27
1.2
1.1
1.2
1.2
e1.2
e2.4
e2.0
e1.1
e1.4
e1.0
6
7
8
9
10
0.06
0.07
0.07
0.06
0.15
0.33
0.48
0.58
0.58
0.58
e1.5
e1.9
0.93
0.84
0.67
11
12
13
14
15
0.17
e0.08
e0.06
e0.03
e0.03
0.58
0.58
0.58
0.58
0.58
16
17
18
19
20
e0.03
e0.03
e0.03
e0.02
e0.02
21
22
23
24
25
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1.5
1.0
1.3
1.4
1.3
1.3
0.95
0.85
e0.90
e0.90
0.25
0.22
0.18
0.15
0.15
0.06
0.04
0.04
0.03
0.03
0.01
0.01
0.01
0.01
0.01
0.01
<0.01
<0.01
0.01
0.01
<0.01
<0.01
<0.01
<0.01
2.2
0.08
0.08
0.08
0.09
0.10
e1.0
e1.2
e1.4
2.7
2.8
1.2
1.3
1.3
1.1
e1.0
e0.90
e0.90
e0.90
0.91
0.94
0.20
0.42
1.1
1.2
0.81
0.03
0.03
0.03
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
2.5
6.3
0.61
0.22
0.16
0.12
0.09
0.09
32
9.1
e0.90
e0.85
e0.80
e0.70
e0.35
2.7
2.6
2.5
2.1
2.9
e1.1
e1.0
e1.0
1.6
e1.3
0.86
0.83
0.86
0.92
0.88
0.53
0.41
0.30
0.20
0.15
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
<0.01
<0.01
<0.01
<0.01
<0.01
0.08
0.06
0.04
0.03
0.03
225
90
9.6
1.9
0.55
0.61
0.68
0.68
0.68
0.68
e0.30
e0.60
e1.0
e1.0
e1.2
2.1
e1.5
e1.5
1.4
1.5
e1.0
0.95
1.2
1.3
1.1
0.79
0.34
0.23
0.22
0.26
0.13
0.10
0.07
0.06
0.06
0.01
0.01
0.01
0.02
0.02
0.01
0.01
0.01
0.01
0.01
<0.01
<0.01
<0.01
<0.01
<0.01
0.03
0.03
0.05
0.05
0.05
0.16
0.09
3.7
69
19
e0.02
e0.02
e0.02
e0.02
e0.02
0.68
0.71
0.73
0.79
0.87
e1.5
e1.6
e1.1
e1.3
e1.0
1.5
1.7
e1.5
1.3
1.0
1.1
0.97
1.0
1.0
0.90
0.36
0.31
0.23
0.16
0.09
0.05
0.04
0.05
0.08
0.16
0.02
0.01
0.01
0.01
0.01
0.01
<0.01
<0.01
0.01
0.01
<0.01
<0.01
<0.01
<0.01
<0.01
0.05
0.06
0.06
0.06
0.06
6.5
3.6
2.4
1.4
1.2
26
27
28
29
30
31
0.01
0.01
0.01
0.02
0.03
0.05
0.91
0.90
0.76
0.63
1.0
---
e0.70
1.5
2.3
3.5
3.4
2.8
1.4
e1.3
e1.3
e1.3
e1.4
e1.4
1.00
1.3
1.3
-------
0.08
0.08
0.08
0.17
0.15
0.21
0.30
0.32
0.10
0.06
0.06
---
0.01
0.01
0.01
0.01
0.01
0.01
<0.01
0.01
0.01
0.01
0.01
---
<0.01
<0.01
<0.01
<0.01
<0.01
<0.01
0.06
0.06
0.06
0.08
0.08
0.08
0.96
0.74
0.58
0.49
0.37
---
TOTAL
MEAN
MAX
MIN
AC-FT
1.44
0.046
0.17
0.01
2.9
17.46
0.582
1.0
0.05
35
40.14
1.295
3.5
0.30
80
52.9
1.706
2.9
1.0
105
32.52
1.161
1.6
0.90
65
17.56
0.566
1.3
0.08
35
7.91
0.264
1.2
0.04
16
0.59
0.019
0.06
0.01
1.2
0.30
0.010
0.01
0.01
0.6
0.32
0.010
0.02
0.01
0.6
13.19
0.425
6.3
0.01
26
479.07
15.97
225
0.08
950
2.316
34.7
1979
0.000
2002
3.182
11.7
1979
0.022
2001
6.654
33.4
1982
0.23
1991
4.574
16.5
1984
0.079
2001
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1976 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
7.438
79.1
1984
0.051
2002
6.735
31.7
1984
0.076
1998
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
<
8.119
32.6
1984
0.082
1998
7.940
30.2
1984
0.092
1998
8.197
21.0
1984
0.44
2001
10.55
75.0
1985
0.24
2001
FOR 2001 CALENDAR YEAR
283.35
0.776
61
0.00
0.02
562
1.1
0.15
0.02
16.69
118
1985
0.18
2002
10.15
75.5
1979
0.010
2002
FOR 2002 WATER YEAR
663.40
1.818
Aug 11
Sep 18
Oct 22
Estimated
Actual value is known to be less than the value shown
225
0.00
0.01
1320
1.5
0.16
0.01
Sep 11
Oct 26
May 22
WATER YEARS 1976 - 2002
7.906
26.8
1985
1.10
1998
270
Apr 28 1979
0.00 Sep 18 2001
0.00 May 21 2002
5730
13
3.7
0.09
69
LITTLE COLORADO RIVER BASIN
09386100 LITTLE COLORADO RIVER BELOW ZION RESERVOIR, NEAR ST. JOHNS, AZ
LOCATION.--Lat 34° 36'17", long 109° 29'19", in SE1/4NW1/4 sec. 21, T.14 N., R.27 E., Apache County, Hydrologic Unit 15020002, on left bank 0.50 mi downstream from Zion
Reservoir, 10 mi northwest of St. Johns.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Sept. 1998 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 5,530 ft above sea level, from topographic map.
REMARKS.--Records fair, except for estimated daily discharges, which are poor. Flow regulated by many small reservoirs - combined capacity, about 15,500 acre-ft.
Diversions for irrigation of about 6,700 acres above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,470 ft3/s Sept. 11, 2002, gage height, 11.84 ft, from an extension of the rating curve based on the weir
equation for submerged weir flow. Minimum daily discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Time
Discharge (ft3/s)
Sept. 11 ........
2315
*2,470
*11.84
Sept. 19 ........
1400
1,810
10.55
Date
Gage height (ft)
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.31
1.2
0.63
0.42
0.56
0.31
0.13
0.11
0.15
e0.43
0.38
0.04
0.04
0.06
0.08
0.17
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
59
27
6.4
0.72
0.00
0.00
0.00
0.00
0.00
0.37
0.39
0.46
0.49
0.55
0.41
0.63
0.88
0.97
1.4
0.04
0.03
0.02
e0.26
e0.20
0.32
0.38
0.22
0.11
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.09
69
11
12
13
14
15
0.49
0.48
0.29
0.22
0.20
0.00
0.00
0.00
0.00
0.00
0.58
0.62
0.53
0.21
e0.35
1.6
0.64
0.48
0.25
0.28
e0.20
e0.20
e0.20
e0.20
e0.21
0.03
0.04
0.04
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
593
2140
963
142
39
16
17
18
19
20
0.17
0.11
0.04
e0.00
e0.00
0.00
0.00
0.00
0.00
0.00
e0.30
e0.89
e0.98
e0.94
0.59
0.27
0.31
0.26
0.06
e0.29
e0.26
0.41
e0.15
e0.20
e0.15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.5
1.1
0.00
0.00
0.00
0.00
0.00
8.3
2.3
180
1150
448
21
22
23
24
25
e0.00
e0.00
e0.00
e0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.0
0.63
0.31
0.13
0.21
e0.25
e0.49
e0.25
e0.30
e0.25
0.16
0.25
0.21
e0.10
e0.08
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.25
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
98
28
9.8
3.5
1.1
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e0.56
e0.52
e1.1
1.1
1.4
0.77
e0.25
e0.35
e0.20
e0.03
e0.03
0.07
e0.05
e0.03
e0.03
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
1.5
0.34
0.07
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.53
0.23
0.08
0.05
0.03
---
TOTAL
MEAN
MAX
MIN
AC-FT
95.12
3.068
59
0.00
189
0.00
0.000
0.00
0.00
0.00
16.29
0.525
1.4
0.00
32
14.32
0.462
1.6
0.03
28
4.84
0.173
0.43
0.02
9.6
1.65
0.053
0.38
0.00
3.3
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
4.80
0.155
1.5
0.00
9.5
0.00
0.000
0.00
0.00
0.00
5876.01
195.9
2140
0.00
11660
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 1981.35
TOTAL 6013.03
MEAN 5.428
MEAN 16.47
MAX 708
MAX 2140
MIN 0.00
MIN 0.00
AC-FT 3930
AC-FT 11930
70
LITTLE COLORADO RIVER BASIN
09390500 SHOW LOW CREEK NEAR LAKESIDE, AZ
LOCATION.--Lat 34° 10'46", long 109° 59'14", in SW1/4NW1/4 sec. 14, T.9 N., R.22 E., Navajo County, Hydrologic Unit 15020005, on left bank 1 mi upstream from pumping plant
on Show Low Lake, 1.9 mi northwest of Lakeside, 2.2 mi upstream from Jacques Dam, and 6 mi southeast of Show Low.
DRAINAGE AREA.--68.6 mi2.
PERIOD OF RECORD.--May 1953 to current year.
REVISED RECORDS.--WSP 1513: 1954–56. WSP 1926: Drainage area. WDR AZ–71–1: 1970(M).
GAGE.--Water-stage recorder and concrete-dam control with V-notch sharp-crested weir. Elevation of gage is 6,610 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Record shows inflow to Show Low Lake. Flow partly regulated by several small reservoirs,
largest of which are Rainbow Lake and Scott Reservoir, combined capacity, 2,400 acre-ft. Diversions for irrigation of about 250 acres above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,550 ft3/s Dec. 18, 1978, gage height, 9.16 ft, from rating curve extended above 2,500 ft3/s; maximum gage
height, 9.53 ft Dec. 26, 1971; no flow Oct. 5, 6, Dec. 10–19, 1964, Jan. 4–15, 1970.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 100 ft3/s and (or) maximum (*):
Date
Aug. 18 ..........
Time
Discharge (ft3/s)
2000
*24
Gage height (ft)
*2.54
Minimum daily discharge, 0.10 ft3/s, Nov. 2–5.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
1
2
3
4
5
0.64
0.64
0.66
0.68
0.69
0.12
0.10
0.10
0.10
0.10
0.30
0.36
0.41
0.40
0.46
0.38
0.38
0.36
0.35
0.33
0.30
0.32
0.31
0.33
0.30
0.47
0.53
0.46
0.47
0.49
0.69
0.69
0.63
0.67
0.57
2.6
2.5
2.7
2.9
3.2
2.2
2.2
2.1
2.1
2.2
1.8
1.8
1.9
2.0
2.1
1.7
1.6
1.5
1.4
1.4
AUG
1.0
0.86
0.84
0.68
0.65
SEP
6
7
8
9
10
0.69
0.82
0.86
0.84
0.73
0.17
0.21
0.18
0.19
0.17
0.46
0.42
0.39
0.32
0.30
0.30
0.30
0.32
0.33
0.31
0.27
0.28
0.30
0.30
0.26
0.93
1.1
1.9
2.1
1.9
0.50
1.9
2.0
1.4
1.0
2.5
2.4
2.3
2.4
2.5
2.2
3.2
2.6
2.8
1.9
1.9
1.8
2.3
2.8
3.4
1.5
1.8
1.6
1.5
1.3
0.67
0.72
0.90
1.1
3.3
11
12
13
14
15
0.67
0.67
0.96
1.0
1.0
0.17
0.19
0.17
0.18
0.28
0.32
0.37
0.37
0.36
0.40
0.30
0.29
0.28
0.27
0.24
0.27
0.27
0.27
0.27
0.27
1.7
1.4
1.4
1.5
0.99
0.91
0.84
0.83
1.2
0.66
3.7
3.2
2.4
2.2
2.2
1.5
1.3
1.4
2.0
2.0
3.0
2.6
2.7
2.5
2.4
1.1
1.1
1.5
2.3
2.6
6.5
2.4
1.6
1.3
1.1
16
17
18
19
20
1.0
1.2
1.3
1.3
1.1
0.24
0.17
0.14
0.12
0.11
0.39
0.36
0.36
0.35
0.35
0.24
0.24
0.24
0.23
0.22
0.27
0.27
0.28
0.30
0.30
1.1
1.0
0.95
0.87
0.82
0.79
0.87
0.79
0.79
0.77
2.1
2.2
2.3
2.5
2.1
2.0
2.0
1.9
1.9
1.9
4.0
2.4
2.2
2.2
2.1
2.6
2.3
4.6
3.4
2.0
1.1
1.1
0.93
1.3
1.5
21
22
23
24
25
0.60
0.43
0.37
0.33
0.29
0.22
0.24
0.25
0.26
0.27
0.35
0.34
0.32
0.33
0.32
0.21
0.21
0.21
0.24
0.21
0.28
0.26
0.19
0.13
0.11
1.1
1.3
0.98
0.67
0.65
0.78
0.78
2.4
2.8
2.9
2.0
2.0
2.0
2.1
2.0
1.9
2.0
1.9
1.9
2.1
1.6
1.2
2.1
2.9
3.3
1.5
1.6
1.7
1.6
1.6
1.5
1.5
1.3
1.00
1.1
26
27
28
29
30
31
0.32
0.26
0.30
0.30
0.25
0.16
0.33
0.33
0.31
0.30
0.30
---
0.31
0.30
0.30
0.31
0.33
0.34
0.22
0.23
0.23
0.23
0.26
0.33
0.12
0.14
0.27
-------
1.00
0.39
0.40
0.45
0.76
0.66
2.8
2.7
2.7
2.7
2.7
---
2.0
2.0
2.1
2.1
2.3
2.4
2.2
2.2
2.0
2.1
2.0
---
2.7
4.2
6.4
2.9
2.4
2.1
1.4
1.0
0.97
1.4
0.94
0.76
1.1
0.99
0.97
1.0
1.1
---
TOTAL
MEAN
MAX
MIN
AC-FT
21.06
0.679
1.3
0.16
42
6.02
0.201
0.33
0.10
12
11.00
0.355
0.46
0.30
22
8.49
0.274
0.38
0.21
17
7.24
0.259
0.33
0.11
14
30.44
0.982
2.1
0.39
60
41.76
1.392
2.9
0.50
83
73.9
2.384
3.7
2.0
147
61.7
2.057
3.2
1.3
122
79.7
2.571
6.4
1.2
158
53.27
1.718
4.6
0.76
106
41.11
1.370
6.5
0.65
82
6.029
13.2
1992
1.82
1990
5.597
10.8
1987
1.07
1996
5.397
20.1
1988
1.17
2001
4.543
18.5
1988
0.59
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1954 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
5.824
57.4
1985
0.68
2002
5.392
54.3
1979
0.20
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
20.86
285
1985
0.20
1965
13.16
200
1993
0.10
1971
30.09
225
1980
0.19
1964
FOR 2001 CALENDAR YEAR
2647.05
7.252
118
0.10
0.12
5250
23
1.8
0.30
43.26
189
1978
0.63
2000
18.90
197
1973
0.97
1957
7.318
72.0
1973
1.68
1960
FOR 2002 WATER YEAR
435.69
1.194
Apr 8
Nov 2
Oct 31
6.5
0.10
0.12
864
2.5
0.93
0.24
Sep 11
Nov 2
Oct 31
WATER YEARS 1954 - 2002
13.80
56.8
1.19
3520
0.00
0.00
10000
20
4.3
0.70
1985
2002
Dec 18 1978
Feb 14 1954
Dec 10 1964
71
LITTLE COLORADO RIVER BASIN
09391000 SHOW LOW LAKE NEAR SHOW LOW, AZ
LOCATION.--Lat 34° 11'35", long 110° 00'15", in NW1/4 sec. 10, T.9 N., R.22 E., Navajo County, Hydrologic Unit 15020005, on upstream side of right end of Jaques Dam on
Show Low Creek, 3.4 mi northwest of Lakeside, and 4.5 mi southeast of Show Low.
DRAINAGE AREA.--73.0 mi2.
PERIOD OF RECORD.--June 1953 to current year. Periodic readings of elevation and contents only, 1953–1985, published with record of Show Low Creek below Jaques Dam
near Show Low, AZ (09392000).
GAGE.--Water-stage recorder, with periodic supplemental lake elevation readings. Elevation of gage is 6580.0 ft above sea level.
REMARKS.--Records good. Lake is formed by an earthen-rock dam; storage began in spring of 1953. The spillway is a concrete, broad-crested Ogee weir. Total capacity to
spillway, 6,180 acre-ft, consisting of 1,070 acre-ft dead storage below elevation 6,535.0 ft (sill of outlet structure) and 5,110 acre-ft usable storage between elevation
6,535.0 ft and 6,570.0 ft (sill of overflow spillway). Capacity table prepared by Leeds, Hill, and Jewett, consulting engineers, from surveys by the firm. Water cannot be
pumped when lake elevation is below 6,538.5 ft (sill of intake to pumping plant), but can be released to stream channel down to elevation 6,535.0 ft. Figures given herein
represent total contents.
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 6,920 acre-ft Dec. 18, 1978, and Dec. 27, 1984; maximum elevation, 6,573.72 ft Dec. 27, 1984; minimum
contents, not determined.
EXTREMES FOR CURRENT YEAR.--Maximum contents, 3,020 acre-ft Oct. 1, elevation 6,551.40 ft; minimum contents 1,940 acre-ft Sept. 29 and 30; minimum elevation
6,543.16 ft Sept. 30.
Capacity table (elevation, in feet, and contents, in acre-feet)
6,535
6,545
6,555
1,070
2,160
3,560
6,565
6,575
5,240
7,180
RESERVOIR STORAGE, in (ACRE-FEET), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
3010
3000
2990
2980
2970
2830
2830
2830
2830
2830
2770
2760
2760
2770
2760
2760
2760
2760
2760
2760
2750
2750
2750
2750
2750
2710
2710
2710
2710
2710
2730
2730
2720
2720
2710
2630
2630
2620
2620
2620
2460
2450
2450
2440
2440
2270
2270
2260
2250
2250
2170
2170
2170
2180
2170
2030
2020
2020
2010
2000
6
7
8
9
10
2970
2960
2950
2950
2940
2820
2820
2820
2820
2810
2760
2760
2760
2760
2760
2760
2760
2760
2760
2760
2750
2750
2750
2750
2740
2710
2710
2720
2720
2720
2710
2720
2720
2720
2730
2610
2610
2600
2600
2590
2430
2430
2420
2410
2410
2240
2230
2230
2230
2230
2170
2170
2160
2160
2150
1990
1990
1980
1980
2000
11
12
13
14
15
2930
2920
2910
2900
2890
2810
2810
2810
2800
2800
2760
2770
2770
2760
2770
2760
2760
2760
2760
2760
2740
2740
2740
2740
2740
2720
2720
2720
2720
2720
2720
2720
2720
2710
2710
2580
2580
2580
2570
2560
2400
2390
2380
2380
2370
2230
2230
2220
2220
2220
2140
2140
2130
2130
2120
2020
2020
2020
2020
2020
16
17
18
19
20
2880
2870
2870
2860
2860
2800
2800
2800
2790
2790
2770
2760
2760
2760
2760
2760
2760
2760
2760
2750
2740
2740
2740
2730
2730
2720
2720
2720
2720
2720
2700
2700
2690
2680
2680
2560
2550
2550
2540
2530
2370
2360
2350
2340
2340
2220
2210
2210
2200
2200
2120
2110
2110
2110
2110
2030
2020
2010
2010
2000
21
22
23
24
25
2860
2860
2860
2850
2850
2790
2790
2780
2780
2780
2760
2760
2760
2760
2760
2750
2750
2750
2750
2750
2730
2730
2730
2720
2720
2720
2720
2720
2720
2720
2670
2660
2660
2660
2660
2530
2520
2510
2510
2500
2330
2320
2310
2310
2300
2190
2190
2190
2190
2190
2100
2100
2090
2080
2080
2000
1990
1980
1980
1970
26
27
28
29
30
31
2850
2850
2840
2840
2840
2840
2780
2770
2770
2770
2770
---
2760
2760
2760
2760
2760
2760
2750
2750
2750
2750
2750
2750
2720
2720
2720
-------
2720
2720
2720
2720
2730
2730
2650
2650
2650
2640
2640
---
2490
2490
2480
2480
2470
2470
2300
2290
2290
2280
2280
---
2180
2180
2190
2190
2180
2170
2070
2060
2050
2050
2040
2040
1960
1960
1950
1940
1940
---
MAX
MIN
(*)
(**)
3010
2840
65510.10
-180
2830
2770
6549.61
-70
2770
2760
6549.55
-10
2760
2750
6549.51
-10
2750
2720
6549.24
-30
2730
2710
6549.32
+10
2730
2640
6548.68
-90
2630
2470
6547.38
-170
2460
2280
6545.94
-190
2270
2170
6545.11
-110
2180
2040
6544.00
-130
2030
1940
6543.16
-100
CAL YR 2001
WTR YR 2002
MAX 6250
MAX 3010
MIN 2760
MIN 1940
(**) -340
(**)-1080
(*) Elevation, in feet, at end of month.
(**) Change in contents, in acre-feet.
72
LITTLE COLORADO RIVER BASIN
09392000 SHOW LOW CREEK BELOW JACQUES DAM, NEAR SHOW LOW, AZ
LOCATION.--Lat 34° 11'47", long 110° 00'13", in NW1/4 sec. 10, T.9 N., R.22 E., Navajo County, Hydrologic Unit 15020005, on right bank just downstream from Jacques Dam,
3.5 mi northwest of Lakeside, and 4.5 mi southeast of Show Low.
DRAINAGE AREA.--73.0 mi2.
PERIOD OF RECORD.--Nov. 1941 to Jan. 1945, June 1953 to Sept. 1955 (monthly discharge only), Oct. 1955 to current year. Monthly discharge only Nov. 1941 to Jan. 1945,
published in WSP 1313. Published as "at Jacques damsite, near Lakeside" 1941–45.
REVISED RECORDS.--WSP 1926: Drainage area. WDR AZ–81–1: 1979 (M).
GAGE.--Water-stage recorder and sharp-crested weir, with supplementary water-stage recorder on lake for recording flow over concrete spillway. Elevation of gage is 6,530 ft
above sea level, from topographic map. Nov. 1941 to Jan. 1945 nonrecording gage at site 100 ft upstream at different datum.
REMARKS.--No estimated daily discharges. Records good. Discharge record is the sum of the diversions from Show Low Lake into Show Low Creek (09392000) and flows
over the Show Low Lake spillway which enters Show Low Creek about 0.25 mi downstream of station 09392000. Flow over the spillway occurred from Mar. 15 to Apr. 2
and Apr. 7 to 15 this year. Record since 1953 shows release from Show Low Lake. Flow regulated by several reservoirs, largest of which are Show Low Lake, completed
in 1953; Rainbow Lake, completed prior to 1941; and Scott Reservoir, completed in 1946 (combined capacity, 8,800 acre-ft). Diversions for irrigation of about 250 acres
above Show Low Lake and diversion by pumping of floodwater stored in Show Low Lake to Forestdale Creek in Salt River basin (see record for Forestdale Creek diversion
from Show Low Creek, near Show Low, elsewhere in this report).
AVERAGE DISCHARGE.--48 years (water years 1954-2001), 8.81 ft3/s, 6,480 acre-ft/yr; median of yearly mean discharges, 4.01 ft3/s, 2,910 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,800 ft3/s, spillway flow entering 0.2 mi downstream from station, Dec. 27, 1984, lake elevation, 6,573.72 ft,
from rating curve extended above 270 ft3/s; no flow at times.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Jan. 18, 1952, discharge, 6,250 ft3/s at site 5 mi downstream at Show Low, is the largest since at least 1940.
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 4.7 ft3/s Oct. 1–18. Minimum daily discharge, no flow Sept. 12–16.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
1
2
3
4
5
4.7
4.7
4.7
4.7
4.7
OCT
0.91
0.91
0.91
0.91
0.91
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.67
0.08
0.08
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.08
1.0
1.5
1.5
1.6
3.8
4.1
4.1
4.1
4.1
4.1
4.0
4.0
3.9
3.9
3.7
3.7
3.8
4.1
4.1
4.0
0.08
0.08
0.04
2.1
3.6
3.6
3.6
3.6
3.6
6
7
8
9
10
4.7
4.7
4.7
4.7
4.7
0.91
0.91
0.91
0.91
0.91
0.81
0.81
0.81
0.81
0.81
0.08
0.08
0.08
0.08
0.33
0.81
0.81
0.81
0.81
0.74
0.81
0.81
0.81
0.81
0.81
1.6
0.52
0.08
0.08
0.08
4.1
4.1
4.1
4.1
4.1
3.9
3.9
3.9
3.9
3.9
4.1
4.1
4.1
4.1
4.1
3.4
3.4
3.4
3.4
3.4
3.6
3.6
3.6
3.6
2.7
11
12
13
14
15
4.7
4.7
4.7
4.7
4.7
0.88
0.89
0.91
0.91
0.91
0.81
0.81
0.83
0.88
0.81
0.44
0.44
0.44
0.44
0.48
0.76
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
1.2
1.7
1.7
2.0
2.7
4.1
4.1
4.1
4.1
4.1
3.8
3.8
3.8
3.8
3.8
4.1
4.1
4.1
4.1
4.1
3.4
3.4
3.7
3.7
3.7
0.02
0.00
0.00
0.00
0.00
16
17
18
19
20
4.7
4.7
4.7
3.8
0.91
0.91
0.91
0.87
0.87
0.91
0.81
0.81
0.81
0.81
0.81
0.45
0.44
0.44
0.44
0.44
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
2.8
2.8
2.8
2.8
2.8
4.1
4.1
4.1
4.1
4.1
3.8
3.8
3.8
3.8
3.8
4.1
4.1
4.1
4.1
4.1
3.7
3.7
3.7
3.7
3.7
0.00
2.2
3.4
3.4
3.5
21
22
23
24
25
0.91
0.91
0.86
0.84
0.82
0.91
0.90
0.85
0.87
0.85
0.81
0.81
0.81
0.81
0.81
0.44
0.44
0.44
0.44
0.44
0.76
0.76
0.81
0.81
0.81
0.81
0.33
0.08
0.08
0.08
2.7
3.1
3.4
3.4
3.4
4.1
4.1
4.1
4.1
4.1
3.7
3.7
3.7
3.7
3.7
4.1
4.1
4.1
4.1
4.1
3.7
3.7
3.7
3.7
3.7
3.6
3.6
3.6
3.6
3.6
26
27
28
29
30
31
0.87
0.87
0.88
0.91
0.91
0.91
0.81
0.81
0.81
0.81
0.81
---
0.81
0.81
0.81
0.81
0.81
0.81
0.44
0.44
0.44
0.58
0.81
0.81
0.81
0.81
0.81
-------
0.08
0.08
0.08
0.08
0.08
0.08
3.4
3.4
3.4
3.4
3.4
---
4.1
4.1
4.1
4.1
4.1
4.1
3.7
3.7
3.7
3.7
3.7
---
4.1
4.1
4.1
4.1
4.1
4.1
3.7
3.7
3.7
3.7
3.7
3.7
3.6
3.6
3.6
3.6
3.6
---
TOTAL
MEAN
MAX
MIN
AC-FT
99.00
3.194
4.7
0.82
196
26.50
0.883
0.91
0.81
53
25.20
0.813
0.88
0.81
50
13.27
0.428
0.81
0.08
26
22.46
0.802
0.81
0.74
45
18.06
0.583
0.81
0.08
36
64.34
2.145
3.4
0.08
128
126.8
4.090
4.1
3.8
252
114.4
3.813
4.1
3.7
227
126.0
4.065
4.1
3.7
250
CAL YR 2001
WTR YR 2002
TOTAL 1770.53
TOTAL 820.05
MEAN 4.851
MEAN 2.247
MAX 157
MAX
4.7
MIN 0.12
MIN 0.00
AC-FT 3510
AC-FT 1630
100.40
3.239
4.0
0.04
199
SEP
83.62
2.787
3.6
0.00
166
73
LITTLE COLORADO RIVER BASIN
09394500 LITTLE COLORADO RIVER AT WOODRUFF, AZ
LOCATION.--Lat 34° 46'58", long 110° 02'37", in NE1/4SW1/4 sec. 17, T.16 N., R.22 E., Navajo County, Hydrologic Unit 15020002, on left bank at abandoned county road bridge
in Woodruff, 3.7 mi downstream from Silver Creek.
DRAINAGE AREA.--8,072 mi2, of which 297 mi2 is noncontributing.
PERIOD OF RECORD.--Mar. to May 1905; June to July 1905 (gage heights only); Aug. 1905 to May 1907; July 1907 to Apr. 1908, July to Oct. 1908, Dec. 1908, and Dec. 1915
to Sept. 1916 (gage heights only); Oct. 1916 to Aug. 1917 (monthly discharge only); Sept. 1917 to Mar. 1918, Dec. 1918 to Dec. 1919, Apr. 1929 to Dec. 1933, Sept. 1935
to current year. Published as "near Woodruff" 1916–19, 1929–48.
REVISED RECORDS.--WSP 1049: 1917. WSP 1213: 1906, 1919(M). WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 5,130.3 ft above sea level. See WSP 1733 for history of changes prior to Sept. 22, 1949.
REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions above station for irrigation of about 22,000 acres, including a pump installation
1,000 ft upstream installed in spring of 1973. Some regulation by reservoirs above station; combined capacity, about 81,400 acre-ft.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge not determined, occurred Jan. 19, 1916; maximum discharge recorded, 25,000 ft3/s Dec. 5, 1919; maximum
gage height, 22.9 ft from high-water mark in gage well, Dec. 19, 1978; no flow at times in most years prior to 1960 and in 1974, 1976, 1983, 1999, 2000, and 2001.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,900 ft3/s and (or) maximum (*):
Date
Sept. 12 .........
Time
Discharge (ft3/s)
unknown
*6,050
Gage height (ft)
*18.38a
Minimum daily discharge, no flow for many days.
a- from floodmark
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
2.3
3.4
4.8
3.6
3.7
1.5
2.2
1.6
1.4
1.1
1.2
1.6
2.0
2.0
2.0
2.8
2.8
2.9
2.9
2.4
2.1
2.3
2.2
2.1
2.1
1.8
1.6
1.8
1.8
1.3
0.25
0.59
0.77
0.55
0.21
0.28
0.23
0.13
0.16
0.17
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.0
5.0
21
13
3.4
1.2
0.60
0.02
0.00
0.00
6
7
8
9
10
7.5
74
91
88
74
1.6
1.2
1.4
1.1
1.2
2.0
1.7
1.5
1.4
1.3
2.5
2.3
2.2
2.2
2.2
2.1
2.4
2.3
2.2
2.2
1.4
1.5
1.5
1.5
1.5
0.15
1.5
32
17
3.8
0.28
0.22
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
280
e20
5.8
3.5
2.5
0.00
0.05
230
438
709
11
12
13
14
15
54
23
12
8.6
5.2
1.3
1.3
1.2
0.75
0.32
1.4
1.5
1.5
1.5
1.5
2.2
2.2
2.2
2.2
2.2
2.0
1.9
2.0
2.0
2.0
1.00
0.10
0.16
0.76
0.87
1.5
1.0
0.77
0.77
0.82
0.05
0.00
0.17
0.15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
57
16
17
18
19
20
3.5
4.2
4.9
4.4
3.9
0.48
1.1
0.99
1.1
0.78
1.6
1.5
1.9
2.2
2.2
2.2
2.2
2.3
1.9
1.7
2.0
2.0
2.0
2.0
2.0
0.85
0.85
0.86
0.66
0.16
0.76
0.46
0.03
0.01
0.08
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
53
29
15
2.8
1.5
21
22
23
24
25
3.6
3.0
2.6
2.3
1.5
0.64
1.0
0.94
0.68
0.32
2.2
2.2
2.5
2.7
2.4
2.0
2.1
2.3
2.1
2.1
2.0
2.0
1.7
1.6
1.7
0.33
0.48
0.39
0.21
0.51
0.45
0.55
0.72
0.75
0.39
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.57
4.7
1.3
0.64
34
26
27
28
29
30
31
1.6
2.8
2.8
1.5
0.48
1.3
0.56
0.86
1.6
1.2
1.2
---
2.5
2.5
2.0
2.5
2.8
2.8
2.2
2.3
2.2
2.2
2.3
2.4
1.8
1.8
1.8
-------
0.70
0.77
0.74
0.31
0.13
0.01
0.02
0.00
0.00
0.00
0.15
---
0.00
0.05
0.07
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
499.48
16.11
91
0.48
3.7
991
0.00
32.62
1.087
2.2
0.32
1.1
65
0.00
60.6
1.955
2.8
1.2
2.0
120
0.00
70.7
2.281
2.9
1.7
2.2
140
0.00
56.3
2.011
2.4
1.6
2.0
112
0.00
26.54
0.856
1.8
0.01
0.77
53
0.00
66.05
2.202
32
0.00
0.55
131
0.00
1.97
0.064
0.28
0.00
0.00
3.9
0.00
0.04
0.001
0.04
0.00
0.00
0.08
0.00
932.31
30.07
436
0.00
0.64
1850
0.00
6.252
87.8
1955
0.000
1929
70.95
810
1919
0.53
1942
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
2.0 e1830
1.4 e5000
0.53 2070
0.04 2310
0.34 e1780
1.4
1.7
1.0
43
140
e740
e80
20
537
753
6.0
2.5
1.3
1.1
15
660
802
170
e51
e31
2.3
275
e436
e14
e3.0
2.5
9.8
3.5
1.1
1.1
0.51
0.97
e24
18
12
6.1
2.3
---
590.49 18275.27
19.05
609.2
280
5000
0.04
0.00
2.5
66
1170
36250
0.00
0.08
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1905 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
38.73
301
1973
1.05
1951
23.62
543
1906
0.90
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
MAXIMUM PEAK STAGE
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
33.42
382
1920
1.24
2000
40.57
599
1993
1.12
2000
56.97
827
1932
0.91
2000
FOR 2001 CALENDAR YEAR
8259.75
22.63
613
0.00
0.00
16380
0.003
41
2.2
0.11
74.88
610
1941
0.86
2002
54.46
789
1905
0.003
1956
20.53
488
1973
0.000
1929
FOR 2002 WATER YEAR
20612.37
56.47
Aug 13
Jun 6
Jun 11
5000
0.00
0.00
40880
0.007
20
1.5
0.00
Sep 12
Mar 31
May 15
140.4
951
1955
3.57
1950
90.43
630
1929
0.71
1956
WATER YEARS 1905 - 2002
48.86
161
4.36
10000
0.00
0.00
22.90
35400
0.006
90
6.6
1.0
1932
2000
Nov 27 1905
Jun 10 1919
May 1 1929
Dec 19 1978
74
LITTLE COLORADO RIVER BASIN
09396100 PUERCO RIVER NEAR CHAMBERS, AZ
LOCATION.--Lat 35° 10'56", long 109° 26'47", in NW1/4NE1/4 sec. 35, T.21 N., R.27 E., Apache County, Hydrologic Unit 15020007, on right bank 0.5 mi upstream from Atchison,
Topeka, and Santa Fe Railway Co. bridge, and 1 mi southwest of Chambers.
DRAINAGE AREA.--2,156 mi2, of which 50 mi2 is noncontributing.
PERIOD OF RECORD.--Water years 1971–72 (annual maximums only), Jan. 1973 to current year (daily mean discharge above 500 ft3/s only).
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 5,720 ft above sea level, from topographic map. Prior to Mar. 7, 1989, water stage recorder at site 0.5 mi downstream at
different datum, now used as supplementary gage.
REMARKS.--Records poor. Only daily mean discharges above 500 ft3/s are published. Small diversions above station for irrigation and livestock. Red Lake, near the headwaters
of Black Creek, was built in 1954; the capacity was 9,700 acre-ft, but capacity may have been reduced by silting.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 17,800 ft3/s Sept. 30, 1971, gage height, 9.65 ft, site and datum then in use; no flow observed on many days
each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,000 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
1430
*4,740
Gage height (ft)
*5.48
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
6
7
8
9
10
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--------505
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
2380
---------
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
TOTAL
MEAN
MAX
MIN
AC-FT
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
75
LITTLE COLORADO RIVER BASIN
09397300 LITTLE COLORADO RIVER NEAR JOSEPH CITY, AZ
LOCATION.--Lat 34° 54'04", long 110° 15'17", in NE1/4SE1/4 sec. 6, T.17 N., R.20 E., Navajo County, Hydrologic Unit 15020008, on left bank just upstream from diversion dam,
5.4 mi west of Holbrook, 5.7 mi southeast of Joseph City, and 8.5 mi downstream from Puerco River.
DRAINAGE AREA.--12,384 mi2, of which 347 mi2 are noncontributing.
PERIOD OF RECORD.--July 1973 to current year (daily discharge only for those days on which instantaneous discharge exceeds 500 ft3/s).
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder, crest-stage gage, and concrete diversion dam. Datum of gage is 5,031.10 ft above sea level (U.S. Army Corps of Engineers benchmark). From
Oct. 1, 1990, to Mar. 19, 1993, on right bank at same datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Published record includes only those days when instantaneous discharge over the crest of
the dam exceeds 500 ft3/s. Diversions above station for irrigation of about 23,000 acres, diversions at dam on right bank of most low flows for irrigation of about
1,500 acres in vicinity of Joseph City. Some regulation by reservoirs; combined capacity of principal reservoirs, about 91,400 acre-ft.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 25,400 ft3/s Dec. 19, 1978, gage height, 7.64 ft, from rating curve extended above 7,400 ft3/s on basis of
slope-area measurement at gage height 6.82 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--A discharge of 60,000 ft3/s was determined for peak of Sept. 19, 1923, at Holbrook (see prior records for sta 09397000, Little
Colorado River at Holbrook, for this peak and other peaks 1905–6, 1949–73).
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 5,000 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
1130
*9,000
Gage height (ft)
*6.89
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
6
7
8
9
10
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
e1030
e204
-------
------e1470
1570
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
7450
5300
e2250
2050
1730
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
239
---------
--------133
e376
----299
705
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
167
---------
548
791
299
-----
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
--e936
e769
e256
-----
--------329
---
-------------
TOTAL
MEAN
MAX
MIN
AC-FT
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
e
Estimated
76
LITTLE COLORADO RIVER BASIN
09397500 CHEVELON CREEK BELOW WILDCAT CANYON NEAR WINSLOW, AZ
LOCATION.--Lat 34° 38'11", long 110° 42'49", in SW1/4 sec. 36, T.15 N., R.15 E., Navajo County, Hydrologic Unit 15020010, Sitgreaves National Forest, on right bank 0.4 mi
downstream from Wildcat Canyon and 25 mi south of Winslow.
DRAINAGE AREA.--271 mi2.
PERIOD OF RECORD.--May 1947 to Sept. 1970 (daily discharge), 1979, 1982–95 (annual maximum only), Oct. 1995 to current year.
REVISED RECORDS.--WSP 1179: 1949(p), WSP 1283: 1951(m).
GAGE.--Water-stage recorder. Datum of gage is 5,905.16 ft above sea level, from Bureau of Reclamation benchmark.
REMARKS.--No estimated daily discharges. Records good. Storage and regulation by Chevelon Canyon Lake (capacity 6,193 acre-ft) 17 mi upstream.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,700 ft3/s Jan. 8, 1993, gage height, 20.78 ft; no flow for many days.
EXTREMES FOR CURRENT YEAR.--No flow for entire year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.067
1.70
1955
0.000
1947
0.219
4.45
1964
0.000
1947
13.18
205
1951
0.000
1948
14.50
210
1970
0.000
1948
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1947 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
2.855
45.9
1959
0.000
1949
9.660
108
1960
0.000
1949
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
35.61
320
1966
0.000
1951
73.39
523
1952
0.000
1951
52.70
308
1957
0.000
1954
150.3
473
1960
0.000
1996
144.1
658
1952
0.000
1996
8.808
47.4
1952
0.000
1947
FOR 2001 CALENDAR YEAR
FOR 2002 WATER YEAR
8556.63
23.44
0.00
0.000
322
0.00
0.00
16970
83
0.00
0.00
Mar 23
Jan 1
Jan 1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Oct
Oct
Oct
1
1
1
WATER YEARS 1947 - 2002
41.56
132
0.000
6860
Jan
0.00 May
0.00 May
30110
87
0.00
0.00
1952
1996
9 1957
1 1947
1 1947
77
LITTLE COLORADO RIVER BASIN
09398300 BLUE RIDGE RESERVOIR NEAR PINE, AZ
LOCATION.--Lat 34° 33'19", long 111° 11'00", in NE1/4SE1/4 sec. 33, T.14 N., R.11 E., Coconino County, Hydrologic Unit 15020008, in Coconino National Forest, on upstream
side of left end of spillway structure of Blue Ridge Dam on East Clear Creek, at mouth of General Springs Canyon, 7.3 mi east of Clints Well, and 20 mi northeast of Pine.
DRAINAGE AREA.--71.1 mi2.
PERIOD OF RECORD.--Dec. 1964 to Mar. 1965 (periodic elevations only), Apr. 1965 to current year.
GAGE.--Water-stage recorder. Datum of gage is 6,620 ft above sea level; gage readings have been reduced to elevations NGVD. Prior to Apr. 2, 1965, nonrecording-gage
readings (at intervals of 3 to 8 days) at NGVD.
REMARKS.--Records good. Reservoir is formed by a concrete arch dam. Dam completed and storage began in Dec. 1964. Total capacity is 19,500 acre-ft at elevation 6,735 ft,
of which 15,000 acre-ft is usable storage below 6,720 ft, the spillway crest. Drawdown below 6,646.3 ft, 2,620 acre-ft restricted by sill at mouth of diversion tunnel since
Nov. 1981. Reservoir serves as a basin from which water is pumped to the East Verde River. (See records for East Verde River diversion from East Clear Creek, near Pine.)
Release is possible through valve in base of dam. Figures given herein represent total contents.
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 17,230 acre-ft Feb. 19, 1993, elevation, 6,727.56 ft; minimum contents since reservoir filled (Apr. 1965),
1,450 acre-ft Nov. 18–27, 1981; minimum elevation, 6,630.75 ft Nov. 26, 1981.
EXTREMES FOR CURRENT YEAR.--Maximum contents, 8,980 acre-ft Oct. 1, elevation, 6,693.58 ft; minimum daily contents, 5,440 acre-ft Sept. 30; minimum elevation
6,671.86 ft Sept. 30.
RESERVOIR STORAGE, in (ACRE-FEET), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
8940
8900
8860
8820
8780
7910
7900
7890
7880
7880
7650
7640
7640
7640
7630
7460
7450
7450
7440
7430
7260
7250
7240
7240
7230
7070
7070
7060
7050
7040
6870
6870
6860
6850
6850
6650
6650
6640
6630
6620
6390
6390
6380
6370
6340
6100
6090
6080
6080
6070
5950
5940
5950
5940
5940
5640
5630
5630
5620
5610
6
7
8
9
10
8740
8700
8670
8630
8580
7870
7850
7820
7810
7810
7630
7620
7610
7600
7600
7420
7420
7410
7410
7400
7220
7220
7210
7200
7200
7040
7030
7030
7020
7010
6840
6840
6830
6820
6820
6610
6600
6590
6580
6570
6310
6290
6280
6280
6270
6060
6060
6050
6040
6040
5930
5930
5920
5910
5910
5610
5620
5620
5620
5620
11
12
13
14
15
8540
8500
8460
8430
8390
7800
7790
7780
7780
7770
7590
7590
7580
7570
7570
7390
7380
7380
7370
7360
7190
7180
7180
7170
7170
7010
7000
6990
6990
6980
6810
6800
6800
6790
6780
6560
6550
6540
6540
6530
6260
6250
6240
6240
6230
6030
6020
6020
6010
6010
5900
5890
5880
5880
5870
5620
5620
5620
5610
5610
16
17
18
19
20
8350
8320
8280
8250
8210
7760
7750
7750
7740
7730
7560
7560
7550
7540
7530
7360
7350
7340
7340
7330
7160
7150
7150
7140
7140
6970
6970
6970
6960
6950
6770
6770
6760
6750
6740
6520
6510
6500
6500
6490
6220
6210
6200
6200
6190
6010
6010
6000
6000
6000
5860
5850
5850
5840
5830
5600
5590
5590
5580
5570
21
22
23
24
25
8170
8140
8100
8060
8030
7720
7710
7710
7700
7700
7530
7520
7520
7510
7500
7320
7320
7310
7300
7300
7130
7120
7110
7110
7100
6940
6940
6930
6930
6920
6730
6720
6720
6710
6700
6480
6470
6460
6460
6450
6180
6170
6160
6150
6150
5990
6000
6000
5990
5990
5820
5810
5800
5790
5780
5560
5560
5550
5540
5540
26
27
28
29
30
31
7990
7950
7940
7930
7920
7910
7690
7680
7670
7660
7660
---
7500
7490
7480
7480
7470
7470
7290
7290
7280
7270
7270
7260
7100
7090
7080
-------
6910
6910
6900
6900
6890
6880
6700
6690
6680
6670
6660
---
6440
6430
6420
6420
6410
6400
6140
6130
6120
6120
6110
---
5980
5980
5970
5960
5950
5950
5760
5740
5710
5680
5650
5650
5510
5480
5450
5450
5440
---
MAX
MIN
(*)
(**)
8940
7910
6687.96
-1070
7910
7660
6686.54
-250
7650
7470
6685.49
-190
7460
7260
6684.27
-210
7260
7080
6683.14
-180
7070
6880
6681.89
-200
6870
6660
6680.51
-220
6650
6400
6678.72
-260
6390
6110
6676.63
-290
6100
5950
6675.49
-160
5950
5650
6673.33
-300
5640
5440
6671.86
-210
CAL YR 2001
WTR YR 2002
(*)
(**)
MAX 15220
MAX 8940
MIN 6120
MIN 5440
(**)
(**)
+1200
-3540
Elevation, in feet, at end of month.
Change in contents, in acre-feet.
78
LITTLE COLORADO RIVER BASIN
09400350 LITTLE COLORADO RIVER NEAR WINSLOW, AZ
LOCATION.--Lat 35° 00'42", long 110° 39'02", in SW1/4SE1/4 sec. 28, T.19 N., R.16 E., Navajo County, Hydrologic Unit 15020008, about 4 mi east of Winslow, in the median of
I-40, on the east side of the bridge, about 0.5 mi east of exit 257.
DRAINAGE AREA.--Unknown.
PERIOD OF RECORD.--Dec. 2001 to current year. Records for May 1954 to Sept.1956 at site 1 mi upstream, a major tributary enters between the two sties, records are not
equivalent.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 4,863 ft above sea level, from Navajo County survey marker.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Flow is regulated by reservoirs upstream. Many diversions for irrigation above gage.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 10,800 ft3/s Sept. 12, 2002, gage height, 18.06 ft; minimum daily discharge, 1.0 ft3/s Aug. 18–19, 2002.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 8,000 ft3/s and (or) maximum (*):
Date
Sept. 12 ........
Time
Discharge (ft3/s)
0100
*10,800
Gage height (ft)
*18.06
Minimum daily discharge, 1.0 ft3/s, Aug. 18–19.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
1
2
3
4
5
-----------
-----------
-----------
10
8.9
8.7
8.8
10
8.6
4.6
5.3
5.6
4.8
6.1
5.4
11
7.6
7.7
7.2
7.5
7.9
8.7
8.6
3.7
4.2
4.4
4.7
4.4
2.6
2.6
2.8
2.8
2.8
2.3
2.2
2.3
2.6
2.4
35
36
38
100
68
37
9.3
8.7
8.0
8.1
6
7
8
9
10
-----------
-----------
-----------
9.6
9.2
10
9.1
7.9
6.8
5.4
4.8
4.4
5.0
8.2
7.1
6.6
6.5
6.8
4.2
4.0
4.3
4.3
3.4
2.8
2.7
2.2
2.2
2.6
2.3
2.3
2.4
2.3
2.3
608
241
65
26
10
6.0
4.6
1210
1460
1420
11
12
13
14
15
-----------
-----------
----7.8
9.1
8.7
7.4
8.8
11
9.5
7.8
5.3
5.3
5.7
6.0
5.5
6.2
6.9
5.7
5.4
5.9
24
13
9.6
8.2
5.4
3.3
4.0
4.1
3.6
3.6
2.7
2.7
2.7
2.4
2.4
2.3
2.2
2.2
2.1
2.2
5.6
2.6
1.6
1.3
1.2
5420
8280
3450
1840
1650
16
17
18
19
20
-----------
-----------
8.1
8.3
8.8
8.6
8.0
7.4
6.8
5.6
5.8
5.8
5.6
5.1
4.7
5.1
5.0
5.1
5.5
5.7
5.8
6.1
5.4
4.6
4.7
4.6
4.9
3.6
3.5
3.3
3.1
2.9
2.4
2.4
2.4
2.4
2.3
32
34
25
20
5.5
1.2
1.1
1.0
1.0
5.1
904
261
98
109
493
21
22
23
24
25
-----------
-----------
7.8
7.0
5.8
8.1
6.9
6.1
5.6
4.9
6.6
5.8
5.0
5.1
5.3
5.0
5.0
6.3
5.8
5.4
e5.5
5.6
5.7
6.4
6.9
6.5
6.0
2.9
3.5
3.3
3.6
3.5
2.1
2.3
2.4
2.3
2.3
2.7
1.8
7.7
4.9
25
144
134
35
8.8
4.9
418
582
391
e93
e53
26
27
28
29
30
31
-------------
-------------
7.4
8.7
8.5
8.6
9.0
9.5
5.8
5.4
5.0
4.9
4.8
5.4
5.5
5.9
6.5
-------
5.4
5.4
5.5
7.7
7.2
7.1
4.8
6.0
5.2
4.1
3.5
---
3.2
3.2
3.2
3.2
3.1
2.9
2.4
2.4
2.3
2.4
2.4
---
4.0
4.0
3.7
4.3
331
136
e37
e30
e24
e18
e17
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
---------------
---------------
---------------
228.4
7.368
11
4.8
7.4
453
0.00
151.9
5.425
8.6
4.4
5.3
301
0.00
198.2
6.394
11
5.1
6.1
393
0.00
287.4
9.580
36
3.5
6.7
570
0.00
112.2
3.619
4.7
2.9
3.5
223
0.00
74.2
2.473
2.8
2.1
2.4
147
0.00
2058.4
66.40
608
1.0
8.8
4080
0.00
28339.7
944.7
8280
4.6
103
56210
0.06
e
Estimated
11
21
e19
e21
e36
127
619
521
331
69
41
1901.0
61.32
619
1.8
2.6
3770
0.00
AUG
SEP
79
LITTLE COLORADO RIVER BASIN
09400562 ORAIBI WASH NEAR TOLANI LAKE, AZ
LOCATION.--Lat 35° 34'47", long 110° 46'24", NW1/4SW1/4SE1/4 sec. 7, T.25 N., R.15 E., Navajo County, Hydrologic Unit 15020012, on right bank, about 27 mi northeast of
Leupp, AZ.
DRAINAGE AREA.--635 mi2.
PERIOD OF RECORD.--July 1995 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,025 ft above sea level, from topographic map.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 799 ft3/s, Aug. 6, 1997, gage height 11.66 ft. Minimum daily discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 423 ft3/s, Aug. 31, gage height 9.23 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.30
0.00
e25
e0.00
e0.00
e4.5
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.66
48
169
182
46
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
65
164
82
22
16
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.27
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
2.9
1.5
1.1
e0.00
0.00
0.00
0.00
0.00
0.00
0.00
e175
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
6.80
0.219
2.9
0.00
13
0.00
175.30
5.655
175
0.00
348
0.01
824.43
27.48
182
0.00
1640
0.04
0.070
0.49
2000
0.000
1996
1.795
5.74
1999
0.000
1996
11.22
29.4
1999
0.000
1996
9.749
27.5
2002
0.000
2001
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
4.519
19.0
1998
0.000
1996
0.054
0.21
2001
0.000
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.000
0.001
1998
0.000
1996
0.000
0.000
1996
0.000
1996
0.000
0.000
1996
0.000
1996
0.253
1.41
1998
0.000
1996
FOR 2001 CALENDAR YEAR
652.19
1.787
156
Aug
0.00 Jan
0.00 Jan
1290
0.003
0.00
0.00
0.00
0.134
0.94
2000
0.000
1996
0.007
0.049
2001
0.000
1996
FOR 2002 WATER YEAR
1006.53
2.758
6
1
1
182
Sep
0.00 Oct
0.00 Oct
2000
0.004
0.00
0.00
0.00
9
1
1
WATER YEARS 1995 - 2002
2.434
4.35
1999
0.50
2000
276
Aug 6 1997
0.00 Jul 26 1995
0.00 Jul 26 1995
1760
0.004
0.00
0.00
0.00
80
LITTLE COLORADO RIVER BASIN
09400568 POLACCA WASH NEAR SECOND MESA, AZ
LOCATION.--Lat 35° 39'21", long 110° 33'41", SE1/4NE1/4SW1/4 sec. 18, T.26 N., R.17 E., Navajo County, Hydrologic Unit 15020013 on the right bank, about 10 mi southwest
of Second Mesa.
DRAINAGE AREA.--905 mi2.
PERIOD OF RECORD.--Apr. 1994 to current year.
GAGE.--Water-stage reader. Elevation of gage is 5,240 ft above sea level, from topographic map.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,020 ft3/s, Aug. 5, 1997, gage height 8.00 ft. Minimum daily discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 500 ft3/s July 23 at 1900, gage height 7.18 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.05
0.05
0.06
0.06
0.06
0.09
0.10
0.10
0.11
0.14
0.19
0.14
0.13
0.13
0.11
0.08
0.12
0.10
0.12
0.10
0.08
0.06
0.05
0.07
0.07
0.07
0.07
0.07
0.08
0.08
0.06
0.06
0.06
0.06
0.06
0.02
0.01
0.02
0.02
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.01
0.01
0.01
0.00
0.06
0.06
0.07
0.07
0.06
0.10
0.10
0.08
0.07
0.11
0.11
0.13
0.13
0.14
0.13
0.09
0.10
0.11
0.09
0.09
0.08
0.08
0.07
0.06
0.08
0.20
0.22
0.10
0.09
0.09
0.06
0.06
0.05
0.05
0.05
0.02
0.03
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.13
88
70
21
11
12
13
14
15
0.01
0.01
0.01
0.01
0.01
0.07
0.06
0.07
0.06
0.07
0.10
0.09
0.05
0.04
0.08
0.11
0.11
0.11
0.10
0.12
0.10
0.11
0.09
0.11
0.11
0.08
0.08
0.08
0.06
0.07
0.10
0.10
0.10
0.10
0.11
0.03
0.03
0.05
0.05
0.04
0.00
0.00
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.04
0.00
0.00
0.00
0.00
0.00
138
180
67
0.30
0.07
16
17
18
19
20
0.02
0.02
0.03
0.03
0.03
0.07
0.07
0.07
0.07
0.07
0.06
0.06
0.10
0.10
0.12
0.13
0.10
0.09
0.06
0.11
0.11
0.10
0.10
0.10
0.10
0.07
0.07
0.08
0.07
0.07
0.09
0.09
0.07
0.07
0.07
0.04
0.05
0.04
0.03
0.03
0.00
0.00
0.00
0.00
0.00
0.14
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.02
21
22
23
24
25
0.03
0.04
0.03
0.03
0.04
0.07
0.07
0.10
0.08
0.11
0.14
0.11
0.07
0.14
0.08
0.10
0.13
0.12
0.05
0.11
0.10
0.09
0.09
0.09
0.09
0.08
0.07
0.07
0.07
0.08
0.08
0.08
0.08
0.08
0.08
0.02
0.03
0.03
0.03
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
121
59
11
0.00
0.00
0.00
0.00
0.00
0.02
0.02
0.03
0.03
0.03
26
27
28
29
30
31
0.05
0.05
0.05
0.05
0.05
0.05
0.08
0.08
0.06
0.09
0.10
---
0.08
0.13
0.15
0.17
0.17
0.37
0.13
0.15
0.13
0.11
0.11
0.07
0.08
0.08
0.08
-------
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.06
0.07
0.07
0.07
---
0.04
0.05
0.04
0.04
0.03
0.03
0.00
0.00
0.00
0.00
0.00
---
0.52
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.02
0.03
0.03
0.03
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.62
0.020
0.05
0.00
1.2
2.12
0.071
0.11
0.05
4.2
3.41
0.110
0.37
0.04
6.8
3.59
0.116
0.19
0.05
7.1
2.73
0.098
0.12
0.08
5.4
2.22
0.072
0.08
0.05
4.4
2.71
0.090
0.22
0.06
5.4
1.33
0.043
0.06
0.02
2.6
0.17
0.006
0.03
0.00
0.3
191.70
6.184
121
0.00
380
0.00
0.000
0.00
0.00
0.00
564.82
18.83
180
0.00
1120
0.061
0.092
1998
0.006
2002
3.342
14.6
2001
0.037
1994
10.73
31.2
1999
0.000
2002
7.219
21.5
1997
0.011
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
6.867
33.9
2001
0.020
2002
0.283
0.96
1999
0.071
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
0.183
0.35
1995
0.060
2001
0.226
0.40
1995
0.12
2002
0.254
0.55
1995
0.098
2002
FOR 2001 CALENDAR YEAR
1391.78
3.813
201
0.00
0.00
2760
0.38
0.10
0.01
0.255
0.42
2001
0.072
2002
0.212
0.37
1994
0.090
2002
0.142
0.25
1995
0.043
2002
FOR 2002 WATER YEAR
775.42
2.124
Jul 10
Jul 6
Sep 7
180
0.00
0.00
1540
0.12
0.06
0.00
Sep 12
Oct 1
Oct 1
WATER YEARS 1994 - 2002
2.586
6.71
0.096
365
Oct 24
0.00 Nov 6
0.00 Jul 21
1870
0.37
0.13
0.02
2001
1994
2000
1999
2000
81
LITTLE COLORADO RIVER BASIN
09400583 JEDDITO WASH NEAR JEDDITO, AZ
LOCATION.--Lat 35° 34'39", long 110° 27'42", NE1/4NW1/4NW1/4 sec. 18, T.25 N., R.18 E., Navajo County, Hydrologic Unit 15020014, on right upstream side of
State Highway 87 bridge, about 20 mi southwest of Second Mesa, AZ.
DRAINAGE AREA.--147 mi2.
PERIOD OF RECORD.--Sept. 1993 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,440 ft above sea level, from topographic map.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,220 ft3/s, Aug. 19, 1999, gage height 9.31 ft. Minimum daily discharge, no flow for many days.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 832 ft3/s Aug. 6 at 0245, gage height 7.19 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
80
e0.00
e0.00
e0.00
0.00
0.00
22
e50
e0.00
e30
11
12
13
14
15
e0.01
e0.01
e0.01
e0.01
e0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e10
e0.01
0.04
0.01
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
e0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
0.00
0.000
0.01
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
80.00
2.581
80
0.00
0.00
159
0.02
112.06
3.735
50
0.00
0.00
222
0.03
0.000
0.000
1994
0.000
1994
0.626
2.48
1999
0.000
1996
1.612
6.86
1999
0.000
1998
0.739
3.74
2002
0.000
1995
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.438
2.81
1994
0.000
1995
0.000
0.000
1994
0.000
1994
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.000
0.000
1994
0.000
1994
0.000
0.000
1994
0.000
1994
0.000
0.000
1994
0.000
1994
FOR 2001 CALENDAR YEAR
105.60
0.289
35
Jul 15
0.00 Jan 1
0.00 Jan 1
209
0.002
0.00
0.00
0.00
0.000
0.000
1994
0.000
1994
0.000
0.000
1994
0.000
1994
0.000
0.000
1994
0.000
1994
FOR 2002 WATER YEAR
192.06
0.526
80
Aug
0.00 Oct
0.00 Oct
381
0.004
0.00
0.00
0.00
6
1
1
WATER YEARS 1994 - 2002
0.288
0.83
0.002
80
Aug 6
0.00 Oct 1
0.00 Oct 12
209
0.002
0.00
0.00
0.00
1999
1998
2002
1993
1993
82
LITTLE COLORADO RIVER BASIN
09401110 DINNEBITO WASH NEAR SAND SPRINGS, AZ
LOCATION.--Lat 35° 46'52", long 110° 55'57", in SW1/4SE1/4SE1/4 sec. 34, T.28 N., R.13 E., Navajo County, Hydrologic Unit 15020017, on the right bank, about 15 mi west of
Old Oraibi.
DRAINAGE AREA.--473 mi2.
PERIOD OF RECORD.--June 1993 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,160 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,540 ft3/s, Aug. 11, gage height 12.53 ft.. Minimum daily discharge, 0.05 ft3/s, Aug. 16 and 23, 2002.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 2,090 ft3/s Sept. 11 at 2100, gage height 11.31 ft. Minimum daily discharge, 0.05 ft3/s, Aug. 16 and 23.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.13
0.14
0.16
0.17
0.18
0.42
0.39
0.40
0.42
0.39
0.25
0.26
0.25
0.38
0.33
e0.23
e0.23
0.24
0.30
0.23
0.14
0.19
0.20
0.22
0.22
0.36
0.30
0.23
0.29
0.38
0.40
0.39
0.38
0.40
0.39
0.34
0.33
0.33
0.32
0.34
0.17
0.16
0.17
0.17
0.17
0.08
0.07
0.07
0.09
0.09
0.08
0.07
0.09
0.09
0.09
4.7
0.34
0.14
0.12
0.10
6
7
8
9
10
0.19
0.32
0.25
0.22
0.22
0.38
0.39
0.38
0.38
0.38
0.22
0.23
0.22
0.21
0.22
0.24
0.25
0.27
0.27
0.26
0.20
0.21
0.27
0.24
0.22
0.43
0.41
0.38
0.35
0.39
0.54
0.73
0.47
0.40
0.40
0.32
0.31
0.30
0.30
0.27
0.17
0.16
0.14
0.12
0.13
0.07
0.07
0.07
0.08
0.10
0.08
0.09
0.08
0.08
0.08
0.10
525
211
63
4.2
11
12
13
14
15
0.24
0.23
0.24
0.28
0.30
0.38
0.35
0.35
0.34
0.32
0.23
0.22
0.17
0.09
0.08
0.22
0.22
0.21
0.21
0.23
0.23
0.27
0.26
0.29
0.28
0.40
0.38
0.38
0.36
0.37
0.41
0.39
0.39
0.38
0.35
0.26
0.28
0.29
0.27
0.25
0.14
0.15
0.13
0.13
0.11
0.11
0.09
0.07
0.06
0.06
0.07
0.07
0.07
0.06
0.06
e33
e5.3
e0.50
e0.30
e0.30
16
17
18
19
20
0.30
0.33
0.34
0.34
0.35
0.33
0.33
0.31
0.30
0.30
0.39
0.19
0.19
0.19
0.20
0.21
0.18
0.18
0.15
0.16
0.30
0.31
0.29
0.29
0.33
0.37
0.39
0.41
0.39
0.39
0.36
0.34
0.32
0.32
0.32
0.24
0.24
0.23
0.23
0.23
0.11
0.11
0.10
0.10
0.09
8.7
0.44
0.15
0.12
0.15
0.05
0.06
0.06
0.06
0.07
e0.20
e0.20
e0.20
e1.0
e0.40
21
22
23
24
25
0.38
0.40
0.41
0.39
0.43
0.29
0.30
0.70
0.32
0.32
0.22
0.19
0.17
e0.17
0.15
0.17
0.21
0.21
0.14
0.14
0.32
0.31
0.35
0.34
0.32
0.41
0.40
0.36
0.41
0.44
0.34
0.37
0.37
0.37
0.37
0.21
0.23
0.24
0.24
0.24
0.09
0.09
0.09
0.08
0.10
0.10
0.08
0.07
31
7.6
0.07
0.07
0.05
0.07
0.08
e0.23
e0.16
e0.14
e0.10
e0.10
26
27
28
29
30
31
0.46
0.47
0.43
0.43
0.44
0.44
0.28
0.24
0.20
0.24
0.26
---
0.12
0.16
e0.22
e0.22
e0.22
e0.22
0.18
0.25
0.24
0.21
0.20
0.15
0.33
0.31
0.38
-------
0.42
0.41
0.41
0.41
0.39
0.39
0.34
0.34
0.36
0.36
0.29
---
0.24
0.25
0.23
0.22
0.20
0.19
0.09
0.10
0.08
0.08
0.08
---
0.50
6.4
1.0
0.14
0.11
0.09
0.08
0.07
0.06
0.06
54
23
e0.10
e0.10
e0.08
e0.07
e0.07
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
9.61
0.310
0.47
0.13
19
0.00
10.39
0.346
0.70
0.20
21
0.00
6.58
0.212
0.39
0.08
13
0.00
6.59
0.213
0.30
0.14
13
0.00
7.62
0.272
0.38
0.14
15
0.00
11.81
0.381
0.44
0.23
23
0.00
11.59
0.386
0.73
0.29
23
0.00
8.17
0.264
0.34
0.19
16
0.00
3.61
0.120
0.17
0.08
7.2
0.00
57.83
1.865
31
0.06
115
0.00
79.07
2.551
54
0.05
157
0.01
851.25
28.38
525
0.07
1690
0.06
0.311
0.98
1999
0.12
2002
3.807
13.8
1999
0.17
2000
11.13
36.8
2001
0.29
1994
10.83
31.9
1997
0.18
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
4.328
19.2
1998
0.25
1996
0.462
0.62
1997
0.30
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.411
0.57
1994
0.21
2002
0.442
0.67
1995
0.21
2002
0.424
0.58
1994
0.27
2002
FOR 2001 CALENDAR YEAR
0.852
2.69
1998
0.37
1995
0.387
0.50
1994
0.27
1997
0.318
0.44
1994
0.21
1997
FOR 2002 WATER YEAR
1563.54
4.284
1064.12
2.915
556
Aug 11
0.07 Sep 11
0.14 Sep 6
3100
0.009
0.74
0.34
0.16
525
Sep 7
0.05 Aug 16
0.06 Aug 13
2110
0.006
0.41
0.24
0.08
WATER YEARS 1993 - 2002
2.963
6.16
1999
0.45
2000
556
Aug 11 2001
0.05 Aug 16 2002
0.06 Aug 13 2002
2150
0.006
0.64
0.36
0.18
83
LITTLE COLORADO RIVER BASIN
09401260 MOENKOPI WASH AT MOENKOPI, AZ
LOCATION.--Lat 36° 06'18", long 111° 12'04", in NW1/4NE1/4 sec. 3, T.31 N., R.11 E. (unsurveyed), Coconino County, Hydrologic Unit 15020018, in Hopi Indian Reservation on
right bank, 100 ft upstream from bridge on State Highway 264, 1.3 mi southeast of Moenkopi, 2.5 mi downstream from former gaging station 09401250, and 12.5 mi
downstream from Begashibito Wash.
DRAINAGE AREA.--1,629 mi2.
PERIOD OF RECORD.--July 1976 to current year. Records for Oct. 1973 to July 1976, at site 2.5 mi upstream, not equivalent below 1.5 ft3/s due to channel losses.
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder and crest stage gages. Elevation of gage is 4,610 ft above sea level, from topographic map.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 10,100 ft3/s Sept. 30, 1983, gage height, 15.10 ft, from rating curve extended above 220 ft3/s on basis of
step-backwater computation at gage heights 12.2 ft, 15.0 ft, and 17.8 ft; maximum gage height, 16.64, Sept. 8, 2002, from floodmark. No flow at times each year.
EXTREMES OUTSIDE PERIOD OF RECORD.--A discharge of 15,100 ft3/s occurred Aug. 4, 1929, at former streamflow-gaging station site 3.5 mi downstream.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,200 ft3/s and (or) maximum (*):
Date
Sept. 8 ...........
Sept. 11 .........
Time
Discharge (ft3/s)
unknown
0845
*5,200
2,650
Gage height (ft)
*16.64
13.52
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
FEB
MAR
APR
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
1.1
1.1
1.1
1.2
1.5
2.1
2.0
1.8
1.9
2.0
2.7
2.2
2.1
2.1
2.0
JAN
e1.0
e1.7
e2.0
e2.0
e2.0
e2.2
2.2
e2.2
e2.2
2.5
e2.1
2.2
2.2
2.2
2.2
JUN
JUL
AUG
SEP
2.4
2.0
1.9
1.7
1.3
6
7
8
9
10
0.03
2.1
1.7
0.95
0.79
1.5
1.5
1.5
1.5
1.5
1.7
1.8
2.0
2.3
2.3
2.2
2.1
2.0
e2.0
e2.0
e1.8
e1.9
e2.0
e2.0
e2.3
2.7
2.9
2.6
2.9
e3.0
11
12
13
14
15
0.82
0.80
0.83
0.83
0.83
1.5
1.5
1.5
1.5
1.5
2.9
2.9
2.3
2.3
2.8
e2.0
e2.0
e2.0
e2.0
e1.4
2.2
2.3
e2.2
e2.4
2.3
16
17
18
19
20
0.83
0.83
0.83
0.83
0.83
1.5
1.5
1.7
1.7
1.6
2.3
2.4
2.5
2.4
2.7
e1.2
e1.4
e2.3
e0.90
e1.2
21
22
23
24
25
0.83
1.1
0.98
0.83
0.84
1.7
1.8
1.8
1.7
2.2
3.0
2.6
2.6
3.0
2.8
26
27
28
29
30
31
1.0
1.1
1.1
1.1
1.1
1.1
2.6
2.1
2.7
2.9
2.9
---
TOTAL
MEAN
MAX
MIN
AC-FT
24.91
0.804
2.1
0.00
49
51.4
1.713
2.9
1.1
102
MAY
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.86
0.41
0.02
0.00
0.00
2.3
2.6
2.2
2.2
2.2
1.3
1.2
e1.0
e0.80
0.73
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
676
0.00 e1800
0.00 e170
0.00
46
e3.0
e3.0
e2.9
e2.9
2.8
2.2
2.2
2.2
2.1
2.2
0.55
0.48
0.39
0.40
0.30
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
840
72
71
16
5.9
2.5
e2.4
2.5
2.6
2.8
2.7
2.6
2.9
2.9
2.8
2.2
2.0
1.8
1.8
1.9
0.14
e0.14
e0.14
e0.14
e0.13
0.00
0.00
0.00
0.00
0.00
0.35
e0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.4
2.6
2.0
1.9
1.8
e2.2
e2.2
e2.3
e1.3
e1.1
2.9
2.8
2.8
3.0
2.7
2.9
3.0
2.7
e3.0
3.0
2.0
2.2
2.1
2.1
1.9
e0.13
e0.13
0.06
0.04
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
38
0.00
0.00
0.00
0.00
0.00
1.6
1.4
1.3
1.3
1.3
e2.8
e2.8
3.8
3.7
3.5
2.9
e2.0
e2.1
e2.0
e1.9
e1.6
e1.0
2.8
2.3
2.2
-------
2.5
2.2
e2.2
2.2
e2.2
e2.2
1.9
1.8
1.8
1.8
2.0
---
0.03
0.04
0.04
0.03
0.01
0.01
0.00
0.00
0.00
0.00
0.00
---
12
51
18
1.2
0.06
0.01
0.00
0.00
0.00
0.00
144
5.5
1.2
1.2
1.2
1.2
1.2
---
78.9
2.545
3.8
1.7
156
57.50
1.855
2.7
0.90
114
64.4
2.300
3.0
1.0
128
82.0
2.645
3.0
2.2
163
62.6
2.087
2.6
1.8
124
17.70
0.571
2.4
0.01
35
0.00
0.000
0.00
0.00
0.00
120.72
3.894
51
0.00
239
149.50
4.823
144
0.00
297
3722.79
124.1
1800
0.00
7380
0.606
10.6
1988
0.000
1984
13.48
91.6
1977
0.000
1979
31.11
180
2001
0.000
1978
28.60
134
1983
0.000
1979
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
10.34
81.8
1982
0.24
1992
6.040
70.6
1988
1.14
1981
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
3.316
13.5
1979
0.62
1981
4.627
28.1
1993
1.20
2001
7.066
47.6
1993
1.90
2001
FOR 2001 CALENDAR YEAR
7431.00
20.36
1510
0.00
0.00
14740
4.8
1.5
0.00
3.746
10.5
1993
1.68
1997
2.401
8.54
1988
1.01
1979
2.103
15.5
1992
0.31
1984
FOR 2002 WATER YEAR
4432.42
12.14
Aug 11
May 27
May 27
1800
0.00
0.00
8790
2.9
1.5
0.00
Sep
Oct
Jun
8
1
1
WATER YEARS 1977 - 2002
9.472
21.7
2001
2.14
1996
3500
Sep 30 1983
0.00 Jun 15 1977
0.00 Jun 15 1977
6860
6.0
2.0
0.00
84
LITTLE COLORADO RIVER BASIN
09402000 LITTLE COLORADO RIVER NEAR CAMERON, AZ
LOCATION.--Lat 35° 55'35", long 111° 34'00", in NW1/4 sec. 5, T.29 N., R.8 E. (unsurveyed), Coconino County, Hydrologic Unit 15020016, in Navajo Indian Reservation, on left
bank 3 mi downstream from Coconino damsite, 9.5 mi downstream from Moenkopi Wash, 9.5 mi northwest of Cameron, and 45 mi upstream from mouth.
DRAINAGE AREA.--26,459 mi2, of which 368 mi2 are noncontributing.
PERIOD OF RECORD.--June 1947 to current year.
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,979.2 ft above sea level.
REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions above station for irrigation of about 32,000 acres. Some regulation by reservoirs
above station (combined capacity of principal reservoirs, about 135,000 acre-ft).
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,900 ft3/s Jan. 21, 1952, gage height, 20.7 ft; no flow at times in each year.
EXTREMES OUTSIDE PERIOD OF RECORD.--A discharge of about 120,000 ft3/s occurred on Sept. 19 or 20, 1923, based on discharge at Grand Falls.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 4,000 ft3/s and (or) maximum (*)
Date
Sept. 7...........
Sept. 11.........
Sept. 16.........
Time
Discharge (ft3/s)
2000
0515
0830
5,340
*11,400
4,010
Gage height (ft)
9.64
*13.99
8.46
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
1
2
3
4
5
e0.04
e0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.85
0.94
1.1
1.3
1.1
6
7
8
9
10
0.00
43
51
44
2.0
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.86
0.62
0.55
0.51
0.43
16
17
18
19
20
FEB
MAR
APR
MAY
JUN
JUL
22
4.7
3.1
1.8
1.4
0.26
0.05
0.02
0.00
0.00
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e60
e20
e10
e30
e30
1.0
0.97
0.65
0.37
0.18
1.2
1.0
1.3
1.5
1.7
0.00
0.34
0.45
0.30
0.88
0.00
0.00
0.00
0.15
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e5.0
11
399
151
63
0.00
0.00
0.00
0.00
0.00
0.05
0.03
0.18
0.16
0.06
1.5
1.2
0.95
0.69
0.58
0.81
1.0
1.0
1.4
1.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
40
25
13
5.6
1.9
8360
2220
1850
2010
3040
0.43
4.7
3.3
1.2
0.35
0.00
0.00
0.00
0.00
0.00
0.03
0.00
0.00
0.00
0.00
0.85
1.2
0.72
0.29
0.06
1.5
1.4
1.3
1.3
1.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.45
0.06
0.01
0.00
24
3690
1990
641
257
99
21
22
23
24
25
0.14
0.10
0.08
0.06
0.04
0.00
0.00
0.00
0.00
0.02
0.00
0.00
0.00
0.00
0.00
0.04
0.04
0.03
0.01
0.00
1.2
0.98
1.0
0.56
0.08
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
56
3.5
3.0
42
49
26
27
28
29
30
31
0.02
0.00
0.00
0.00
0.00
0.00
0.96
1.2
1.4
0.74
0.60
---
0.00
0.00
0.00
0.08
2.5
2.5
0.00
0.00
0.97
2.7
2.2
1.1
0.15
0.07
0.05
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.66
135
29
315
513
212
28
15
3.2
1.1
98
32
153.44
4.950
51
0.00
304
4.92
0.164
1.4
0.00
9.8
14.05
0.453
2.5
0.00
28
54.83
1.769
22
0.00
109
19.00
0.679
1.6
0.00
38
0.21
0.007
0.15
0.00
0.4
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
1204.66
38.86
513
0.00
2390
15.75
595
1955
0.000
1950
106.6
616
1954
0.000
1960
TOTAL
MEAN
MAX
MIN
AC-FT
JAN
AUG
SEP
116
129
79
44
23
9.0
1630
2800
1530
2860
46
278
313
502
263
80
36
17
4.9
0.97
---
1219.82 34917.87
39.35
1164
399
8360
0.00
0.97
2420
69260
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
204.3
4192
1973
0.000
1951
72.83
753
1988
0.000
1956
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
96.74
1689
1979
0.000
1957
224.5
4692
1993
0.000
1964
250.9
2723
1993
0.000
1964
FOR 2001 CALENDAR YEAR
29126.41
79.80
1680
0.00
0.00
57770
251
0.71
0.00
462.1
1873
1978
0.000
1951
559.2
3970
1973
0.000
1971
128.3
2882
1973
0.000
1950
FOR 2002 WATER YEAR
37588.80
103.0
Aug 15
Jan 1
Jan 1
8360
0.00
0.00
74560
44
0.00
0.00
Sep 11
Oct 3
Oct 27
357.8
2264
1955
0.000
1960
238.8
1164
2002
0.000
1979
WATER YEARS 1948 - 2002
226.4
1127
14.1
18400
0.00
0.00
164000
612
2.4
0.00
1973
2000
Oct 19 1972
Oct 1 1947
Oct 1 1947
85
LITTLE COLORADO RIVER BASIN
09402000 LITTLE COLORADO RIVER NEAR CAMERON, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Oct. 1956 to Sept. 1970, Oct. 1989 to current year.
INSTRUMENTATION.--Automatic pumping sampler since Oct. 1990.
REMARKS.--Suspended-sediment total and sand discharge computed from sample data and by interpretation of a sample based suspended-sediment and streamflowdischarge curve. Record for days when instantaneous discharge over the crest of the dam exceeds 20 ft 3/s from Oct. 1989 to current year.
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
1520
---------
47700
64100
27400
11500
6230
-----------
-----------
-----------
4540
2570
1480
834
485
2740
1910
1340
976
837
7530
4510
2650
1660
985
-----------
-----------
------79000
88600
-----------
6
7
8
9
10
--------1940
26900
35100
17700
37400
28200
-----------
-----------
-----------
313
219
1060
949
5570
820
696
538
458
374
-----------
-----------
-----------
47900
80800
306000
37900
50200
-----------
11
12
13
14
15
-----------
15500
6780
3190
1610
e833
-----------
-----------
-----------
7100
2650
9910
17100
6780
321
275
7250
12300
7270
-----------
-----------
35700
110000
17500
8310
4660
350000
380000
261000
259000
348000
--------50800
16
17
18
19
20
1020
2960
920
328
---
e487
e347
-------
-----------
-----------
--466
409
-----
4260
3410
4700
13000
8630
4900
4100
6310
8410
6870
-----------
-----------
-----------
224000
87400
54000
21700
9130
32100
8500
609
1260
18100
21
22
23
24
25
--208000
39400
96700
385000
-----------
-----------
-----------
-----------
4590
3990
5360
20800
35600
3320
2050
1270
754
441
-----------
-----------
-----------
6360
6780
8770
8270
1730
2360
742
198
71.0
---
26
27
28
29
30
31
e397000
e284000
e722000
e65000
61600
149000
-------------
-------------
-------------
641
483
5110
-------
38900
20000
12900
8800
6020
4120
276
196
165
118
79.0
---
-------------
-------------
-------------
430
------385
e384
-------------
MAX
MIN
-----
-----
-----
-----
-----
38900
219
12300
79.0
-----
-----
-----
-----
-----
e
APR
Estimated
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
87.0
---------
-----------
-----------
-----------
-----------
-----------
-----------
e10200
----e5740
e5470
18500
16400
8410
4140
1990
6
7
8
9
10
--990
4240
4820
---
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
----101000
28400
9530
--388000
657000
305000
938000
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
4990
2450
-------
4030000
345000
213000
233000
375000
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--------2190
293000
104000
31600
11600
4150
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
5250
----2860
2830
1670
16800
22300
35800
13900
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
--53700
3310
91800
116000
38100
1540
------17600
4080
2680
560
---------
MAX
MIN
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
e
Estimated
86
LITTLE COLORADO RIVER BASIN
09402000 LITTLE COLORADO RIVER NEAR CAMERON, AZ—CONTINUED
SEDIMENT DISCHARGE, SUSPENDED, SIEVE DIAM. GREATER THAN .062 MM (TONS/DAY)
WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY
1
2
3
4
5
OCT
24
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
-------
---------
591
657
186
69
31
-----------
-----------
-----------
17
12
8.8
5.3
3.9
220
116
57
37
39
38
12
4.2
2.6
2.0
-----------
-----------
2050
1330
-----------
6
7
8
9
10
--------6.8
269
376
165
400
364
-----------
-----------
-----------
3.2
2.9
5.2
1.7
98
56
50
30
22
15
-----------
-----------
-----------
589
1900
7900
94
435
-----------
11
12
13
14
15
-----------
198
65
20
13
e9.7
-----------
-----------
-----------
100
13
178
389
218
12
8.3
211
378
225
-----------
-----------
78
184
7.7
0.96
0.25
4410
8380
5150
4660
7080
--------1050
16
17
18
19
20
4.3
11
3.1
0.85
---
e7.3
e5.5
-------
-----------
-----------
--2.2
1.9
-----
123
87
124
399
342
166
108
297
613
457
-----------
-----------
-----------
4680
1850
672
99
21
---
293
172
111
54
37
-----------
-----------
-----------
20
30
92
113
16
-------------
-------------
-------------
21
22
23
24
25
5480
859
3030
9370
-----------
-----------
-----------
-----------
271
234
274
1060
1850
26
27
28
29
30
31
e11600
e6160
e14100
e850
953
4260
-------------
-------------
-------------
5.1
4.5
22
-------
2080
1530
1140
839
597
379
e
Estimated
35
18
8.2
2.8
0.66
---
2.8
------0.73
e0.37
793
285
24
33
539
78
26
8.0
1.3
---------------
SEDIMENT DISCHARGE, SUSPENDED, SIEVE DIAM. GREATER THAN .062 MM (TONS/DAY)
WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
1
2
3
4
5
-----------
-----------
-----------
0.51
---------
-----------
-----------
-----------
-----------
-----------
-----------
6
7
8
9
10
--8.1
81
38
---
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
3.2
1.2
-------
247000
24800
15300
17700
40400
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
--------6.8
52800
12600
1300
125
12
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
-------------
--2900
2.9
950
927
132
e
Estimated
AUG
e20
----e0.85
e0.46
----919
117
11
22
----5.9
5.5
1.2
------96
2.8
SEP
93
24
8.9
3.1
0.86
--21700
22700
7410
45100
2.7
84
49
306
75
14
2.7
---------
87
COTTONWOOD CREEK BASIN
09402450 COTTONWOOD SPRING ABOVE CONFLUENCE WITH COTTONWOOD CREEK, NEAR GRAND CANYON, AZ
LOCATION.--Lat 36° 01'25", long 111° 59'15”, in sec. 32, T.31 N., R.4 E. (unsurveyed), Hydrologic Unit 15010002, on the right bank 8 mi northeast of Grand Canyon Village, AZ.
DRAINAGE AREA.--0.54 mi2.
PERIOD OF RECORD.--Sept. 1994 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,920 ft above sea level, from topographic map.
REMARKS.--Records poor. Daily discharges are not calculated for periods of no gage-height record and when instantaneous discharge exceeds 0.20 ft3/s.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.000
0.000
0.000
0.002
0.003
0.001
0.001
0.002
0.001
0.002
0.011
0.011
0.010
0.014
0.010
0.015
0.013
0.011
0.011
0.011
0.014
0.015
0.013
0.012
0.011
0.007
0.007
0.007
0.007
0.007
0.003
0.003
0.002
0.002
0.003
0.001
0.001
0.001
0.001
0.001
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
6
7
8
9
10
0.003
0.003
0.003
0.002
0.002
0.003
0.003
0.003
0.003
0.004
0.009
0.010
0.011
0.011
---
0.011
0.011
0.011
0.011
0.011
0.009
0.006
0.006
0.005
0.005
0.007
0.013
0.023
0.016
0.013
0.003
0.004
0.004
0.003
0.003
0.001
0.001
0.001
0.001
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
---------
11
12
13
14
15
0.002
0.002
0.002
0.002
0.002
0.003
0.003
0.003
0.003
0.003
-----------
0.011
0.011
0.011
0.011
0.011
0.006
0.006
0.007
0.007
0.006
0.010
0.008
0.007
0.007
0.008
0.003
0.003
0.003
0.003
0.003
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
-----------
16
17
18
19
20
0.001
0.002
0.002
0.002
0.001
0.003
0.003
0.003
0.003
0.003
-----------
0.011
0.011
0.011
0.014
0.013
0.006
0.006
0.006
0.006
0.006
0.015
0.026
0.024
0.013
0.010
0.003
0.003
0.003
0.003
0.002
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
-----------
21
22
23
24
25
0.002
0.003
0.003
0.004
0.003
0.003
0.003
0.011
0.011
0.022
--------0.010
0.013
0.012
0.011
0.010
0.011
0.005
0.005
0.005
0.005
0.008
0.008
0.007
0.006
0.008
0.007
0.002
0.002
0.002
0.001
0.001
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
-----------
26
27
28
29
30
31
0.001
0.001
0.001
0.001
0.001
0.001
0.016
0.015
0.012
0.011
0.011
---
0.008
0.008
0.008
0.008
0.008
0.019
0.012
0.012
0.012
0.011
0.011
0.012
0.008
0.008
0.008
-------
0.005
0.004
0.005
0.005
0.004
0.003
0.001
0.001
0.001
0.001
0.001
---
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
---
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
-------------
TOTAL
MEAN
MAX
MIN
AC-FT
0.057
0.002
0.004
0.000
0.1
0.168
0.006
0.022
0.001
0.3
-----------
0.358
0.012
0.015
0.010
0.7
0.210
0.007
0.015
0.005
0.4
0.297
0.010
0.026
0.003
0.6
0.072
0.002
0.004
0.001
0.1
0.009
0.000
0.001
0.000
0.02
0.000
0.000
0.000
0.000
0.00
0.000
0.000
0.000
0.000
0.00
0.000
0.000
0.000
0.000
0.00
-----------
88
COLORADO RIVER MAIN STEM
09402500 COLORADO RIVER NEAR GRAND CANYON, AZ
LOCATION.--Lat 36° 06'05", long 112° 05'08", in sec. 5, T.31 N., R.3 E. (unsurveyed), Coconino County, Hydrologic Unit 15010001, in Grand Canyon National Park, on left bank
0.2 mi upstream from Kaibab Bridge, 0.4 mi upstream from Bright Angel Creek, 4.5 mi northeast of village of Grand Canyon, 26 mi downstream from Little Colorado River,
and 267 mi upstream from Hoover Dam.
DRAINAGE AREA.--141,600 mi2 approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming which is noncontributing.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--Oct. 1922 to current year. Prior to 1944, published as "Colorado River at Bright Angel Creek, near Grand Canyon." Gage-height records collected 1.5 mi
downstream 1908-13, published in reports of U.S. Weather Bureau.
GAGE.--Water-stage recorder. Datum of gage is 2,418.7 ft above sea level.
REMARKS.--No estimated daily discharges. Records good. Flow completely regulated by Lake Powell, 104 mi upstream, since Mar. 13, 1963. (See elsewhere in this report.)
Many diversions above station for irrigation, municipal, and industrial uses.
EXTREMES FOR PERIOD OF RECORD.--1922–62: Maximum discharge, 127,000 ft3/s July 2, 1927, gage height, 29.25 ft; minimum, 700 ft3/s Dec. 28, 1924, gage height,
-0.70 ft.
1963–2001: Maximum discharge, 96,200 ft3/s June 29, 1983, gage height, 26.26 ft; minimum, 850 ft3/s Jan. 26, 1963, gage height, -0.55 ft, result of closing coffer dam at
Glen Canyon Dam.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1884, 300,000 ft3/s about July 8, 1884 (computed on basis of flood studies at Lees Ferry).
Crest discharge of flood of June 19, 1921, was 220,000 ft3/s, gage height, 37.5 ft from floodmarks, from rating curve extended above 120,000 ft3/s.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 21,400 ft3/s Sept. 11 at 1330, gage height, 12.37 ft. Minimum daily discharge, 7,600 ft3/s Oct. 1.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
7600
10500
10600
10600
10700
10700
10800
10900
10000
9590
11400
14200
10800
14200
14400
14100
12100
14200
13900
14100
13800
11700
10400
9940
11700
11400
10600
9750
9760
10300
9710
10800
10800
10700
10700
10900
10700
10900
11300
10500
8480
12700
12300
13500
13500
12400
15400
15500
15500
13700
15900
15200
15200
14700
13900
14700
9340
7990
8970
8850
6
7
8
9
10
10700
10700
8210
10600
10900
10900
10900
10800
10600
10900
14200
14100
14000
13300
10400
12400
11600
13900
13900
14000
11700
11400
11300
11400
10500
10400
10500
10600
10600
9930
10800
9840
9780
10800
10800
9880
11000
10900
10900
10800
13300
13300
13300
12500
12200
15200
14800
13700
15100
15000
15000
15300
15600
15800
15500
8790
10100
11700
10800
10100
11
12
13
14
15
10900
10700
10800
10600
8120
10500
9370
10800
10800
10900
13900
13900
14000
13900
13900
14000
14100
12600
11500
13800
10100
11800
11800
11700
11700
9700
10600
10400
10500
10600
10800
11100
10900
9980
9750
10900
10200
9820
10800
10900
13300
13300
13300
13300
13300
15100
15900
15600
15600
13800
14500
13900
15100
15200
15200
16100
12700
10800
10800
10700
16
17
18
19
20
10500
10700
10700
10800
10800
10900
10700
10600
9730
11000
13500
10600
13800
13900
14200
13700
14100
14000
13900
12100
11700
10500
10300
11700
11800
10600
10000
9940
10900
10500
10800
10800
10800
10900
11000
10900
11000
10800
10600
9810
12600
12200
13300
13300
13300
15600
15600
15700
15700
15300
15300
15400
14700
14000
15700
11400
11600
10100
9350
9200
21
22
23
24
25
10600
8120
10600
10700
10800
10900
10800
9900
10900
10800
14100
14000
13700
10700
13900
11400
13900
14000
14000
14000
11700
11700
11700
10500
10200
10400
10500
10500
9540
9710
10100
9850
11100
11000
11000
10500
10800
10900
10700
8530
13400
13500
12700
12100
13300
15200
13800
15500
15600
15400
15300
15300
14500
15200
14600
9110
8400
8080
9060
9270
26
27
28
29
30
31
10700
10700
10600
8080
10500
10600
9900
11400
11400
11500
11300
---
11100
13800
14100
14100
13500
11400
14000
12100
12400
14100
13700
13800
11700
11700
11500
-------
10300
10300
10500
10400
10500
9640
11000
10900
10100
9770
10800
---
8450
8460
8460
8460
8450
8480
13400
13400
13400
13300
12600
---
15400
15500
15300
14000
15700
16000
13900
15400
15500
15400
15300
15400
9050
8880
8850
7890
7820
---
TOTAL
MEAN
MAX
MIN
AC-FT
317730
10250
10900
7600
630200
320190
10670
11500
9370
635100
411000
13260
14400
10400
815200
415400
13400
14200
11400
823900
317640
11340
13800
9940
630000
319870
10320
11400
9540
634500
317180
10570
11100
9710
629100
315700
10180
11300
8450
626200
387380
12910
13500
8480
768400
467600
15080
16000
12400
927500
466900
15060
15900
13900
926100
300500
10020
16100
7820
596000
CAL YR 2001
WTR YR 2002
TOTAL 4287720
TOTAL 4357090
MEAN 11750
MEAN 11940
MAX 15800
MAX 16100
MIN 7410
MIN 7600
AC-FT 8505000
AC-FT 8642000
89
COLORADO RIVER MAIN STEM
09402500 COLORADO RIVER NEAR GRAND CANYON , AZ--CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Oct. 1925 to Nov. 1942, Sept. 1943 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to current year.
PERIOD OF DAILY RECORD.-WATER TEMPERATURE: Oct. 1940 to Oct. 1942, Sept. 1943 to Sept. 1976, Apr. 1983 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to current year.
SPECIFIC CONDUCTANCE: Oct. 1964 to Mar. 1974, Apr. 1983 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to current year.
pH: Aug. 1990 to Apr. 1993.
DISSOLVED OXYGEN: Aug. 1990 to Apr. 1993.
SUSPENDED-SEDIMENT DISCHARGE: Oct. 1925 to Nov. 1942, Sept. 1943 to Sept. 1972, June 1983 to Dec. 1983, Sept. 1985 to Feb. 1986.
TURBIDITY: Feb. 1998 to Sept. 2000.
INSTRUMENTATION.--Water-temperature recorder Nov. 1952 to Sept. 1976, Apr. 1983 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to current year. Specific conductance
recorder Oct. 1964 to Mar. 1974, Apr. 1983 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to current year.
REMARKS.--Temperature and specific conductance records are good. Unpublished chemical analyses for period Oct. 1930 to Sept. 1940, daily specific conductance
measurements Oct. 1937 to Nov. 1942, Sept. 1943 to Sept. 1964, and daily water temperature Oct. 1936 to Sept. 1940, available from the district office in Tucson, AZ.
EXTREMES FOR PERIOD OF RECORD.-WATER TEMPERATURE (Apr. 1983 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to Sept. 1998): Maximum recorded, 16.0° C on Aug. 26, 1984; minimum recorded,
5.7° C on Dec. 24, 25, 1990.
SPECIFIC CONDUCTANCE (Apr. 1983 to Dec. 1987, Aug. 1990 to Apr. 1993, Apr. 1998 to Sept. 1998): Maximum recorded, 1,440 microsiemens on Mar. 20, 1986; minimum
recorded, 631 microsiemens Dec. 22, 1986.
pH: Maximum recorded 8.6 units, Nov. 5, 1990; minimum recorded, 7.7 units Nov. 5, 1990.
DISSOLVED OXYGEN: Maximum recorded, 11.4 mg/l, Jan. 23, 1993; minimum recorded, 9.8 mg/l, Nov. 27–30, 1991, May 26, 1992, Mar. 21 and 23, 1993.
TURBIDITY: Minimum daily 1.1 NTU on many days.
EXTREMES FOR CURRENT YEAR.-WATER TEMPERATURE: Maximum recorded, 15.9° C Sept. 11; minimum recorded, 7.3° C Feb. 10 and Mar. 4.
SPECIFIC CONDUCTANCE: Maximum recorded, 1,200 microsiemens, Sept. 9; minimum recorded, 699 microsiemens Sept. 12.
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
OCTOBER
MIN
MEAN
MAX
NOVEMBER
MIN
MEAN
MAX
DECEMBER
MIN
MEAN
JANUARY
1
2
3
4
5
12.9
12.9
12.4
12.4
12.4
12.4
12.3
12.0
11.9
11.9
12.7
12.5
12.2
12.1
12.1
11.0
10.9
10.7
10.6
11.1
10.4
10.3
10.1
10.2
10.5
10.7
10.6
10.4
10.4
10.7
9.3
9.5
9.7
9.5
9.3
8.7
9.1
9.2
9.2
9.0
9.0
9.2
9.4
9.3
9.1
10.0
9.8
9.4
9.4
9.3
9.7
9.4
9.0
9.0
8.8
9.8
9.5
9.2
9.2
9.1
6
7
8
9
10
12.4
12.2
12.5
12.5
12.1
12.0
11.8
11.8
11.9
11.4
12.2
12.0
12.0
12.1
11.7
11.1
11.0
11.1
11.0
10.9
10.5
10.7
10.7
10.6
10.3
10.8
10.8
10.9
10.8
10.5
9.3
9.3
9.2
9.0
8.8
8.8
8.8
8.7
8.5
8.4
9.0
9.0
9.0
8.8
8.5
9.4
9.5
9.6
9.6
9.6
9.0
9.0
9.2
9.3
9.3
9.1
9.2
9.4
9.4
9.4
11
12
13
14
15
11.5
11.1
11.1
11.3
11.6
10.8
10.5
10.3
10.8
11.0
11.1
10.8
10.6
11.0
11.2
10.6
10.8
10.8
10.7
10.4
10.0
10.3
10.4
10.0
9.8
10.3
10.5
10.6
10.3
10.1
8.9
9.1
9.1
9.0
8.9
8.5
8.6
8.6
8.5
8.5
8.6
8.8
8.8
8.7
8.7
9.4
9.3
9.3
9.3
8.9
9.0
8.9
8.9
8.7
8.6
9.2
9.1
9.1
8.9
8.8
16
17
18
19
20
11.6
11.4
11.4
11.3
11.3
11.0
11.0
10.8
10.7
10.7
11.3
11.2
11.1
11.0
11.0
10.3
10.2
10.3
10.3
10.3
9.7
9.6
9.8
9.8
9.6
10.0
9.9
10.0
10.1
9.9
8.7
8.6
8.7
9.1
9.3
8.2
8.2
7.8
8.6
8.8
8.4
8.4
8.2
8.8
9.0
8.9
9.1
8.9
8.6
8.4
8.6
8.7
8.3
8.1
8.0
8.8
8.8
8.6
8.3
8.1
21
22
23
24
25
11.2
11.6
11.6
11.3
11.1
10.7
10.9
10.7
10.7
10.4
10.9
11.1
11.2
11.0
10.7
10.0
9.9
9.9
9.8
9.5
9.5
9.5
9.3
9.2
9.0
9.7
9.6
9.7
9.5
9.2
9.3
9.6
9.4
9.2
9.3
9.1
9.1
9.1
8.8
8.8
9.2
9.3
9.2
9.0
9.0
8.5
8.8
8.7
8.4
8.2
7.9
8.2
8.3
7.8
7.7
8.1
8.4
8.4
8.0
7.9
26
27
28
29
30
31
10.8
10.7
11.0
11.3
11.3
11.1
10.1
10.2
10.5
10.7
10.7
10.8
10.5
10.4
10.6
10.9
11.0
10.9
9.1
9.0
8.6
8.6
9.1
---
8.5
8.1
7.9
8.2
8.4
---
8.8
8.5
8.2
8.4
8.6
---
9.2
9.2
9.6
9.8
10.1
10.0
8.7
8.7
9.0
9.4
9.7
9.7
8.9
8.9
9.2
9.7
9.8
9.8
8.4
8.6
8.5
8.6
8.5
8.2
7.9
8.2
8.2
8.2
8.1
7.5
8.1
8.3
8.3
8.4
8.2
7.8
MONTH
12.9
10.1
11.3
11.1
7.9
9.9
10.1
7.8
9.0
10.0
7.5
8.7
90
COLORADO RIVER MAIN STEM
09402500 COLORADO RIVER NEAR GRAND CANYON , AZ—CONTINUED
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
FEBRUARY
MIN
MEAN
MAX
MARCH
MIN
MEAN
MAX
APRIL
MIN
MEAN
MAY
1
2
3
4
5
8.0
8.0
8.2
8.2
8.2
7.4
7.5
7.5
7.5
7.5
7.6
7.6
7.7
7.9
7.8
8.8
8.6
8.1
8.1
8.6
8.3
7.5
7.4
7.3
7.8
8.5
7.9
7.7
7.7
8.0
11.4
11.3
11.4
11.4
11.4
10.9
10.8
10.8
10.8
10.9
11.1
11.0
11.0
11.1
11.1
11.9
11.7
11.6
11.7
12.0
11.2
10.9
10.7
11.0
11.2
11.4
11.2
11.1
11.3
11.5
6
7
8
9
10
8.2
8.2
8.3
8.3
8.1
7.6
7.6
7.7
7.6
7.3
7.9
7.9
7.9
7.9
7.7
9.0
9.2
9.3
9.3
9.2
8.2
8.7
8.8
8.6
8.6
8.4
8.8
9.0
8.9
8.8
11.3
11.3
11.3
11.5
11.4
10.6
10.4
10.8
10.7
10.9
10.8
10.7
11.0
11.0
11.2
12.3
12.3
12.2
12.1
12.0
11.4
11.8
11.5
11.4
11.4
11.8
12.0
11.9
11.7
11.7
11
12
13
14
15
8.2
8.3
8.3
8.6
8.6
7.4
7.6
7.8
8.0
8.0
7.8
7.9
8.0
8.2
8.3
9.5
9.6
10.2
10.1
9.5
8.6
9.0
9.3
9.1
8.7
8.8
9.3
9.6
9.5
9.0
11.5
11.5
11.9
11.8
11.6
11.0
10.8
10.8
11.3
11.3
11.2
11.1
11.2
11.5
11.4
12.1
12.2
12.4
12.6
12.6
11.4
11.4
11.7
12.0
12.0
11.7
11.7
12.0
12.2
12.3
16
17
18
19
20
8.7
8.7
8.5
8.6
8.9
8.1
8.3
8.2
8.1
8.2
8.4
8.5
8.3
8.3
8.5
9.2
9.0
9.1
9.6
10.0
8.3
8.1
8.5
8.7
9.3
8.6
8.4
8.7
9.0
9.5
11.5
11.3
11.2
11.1
11.0
10.8
10.8
10.5
10.4
10.1
11.1
11.0
10.8
10.7
10.4
12.7
12.7
13.0
12.9
12.9
11.9
12.0
12.1
12.2
12.2
12.2
12.4
12.5
12.5
12.5
21
22
23
24
25
9.1
9.2
9.1
9.3
9.3
8.5
8.5
8.5
8.4
8.6
8.7
8.8
8.8
8.7
8.9
10.1
10.5
10.5
10.0
10.3
9.5
9.8
9.8
9.6
9.5
9.8
10.0
10.1
9.7
9.8
11.0
11.1
11.2
11.6
11.9
10.0
10.4
10.6
10.7
11.2
10.4
10.7
10.8
11.1
11.5
12.8
12.2
12.1
12.1
12.5
11.9
11.5
11.4
11.0
11.6
12.2
11.8
11.6
11.5
12.0
26
27
28
29
30
31
9.2
8.9
8.9
-------
8.5
8.2
8.1
-------
8.8
8.6
8.4
-------
10.3
10.7
10.7
10.9
11.1
11.3
9.7
9.9
10.1
10.2
10.5
10.7
9.9
10.1
10.4
10.5
10.7
10.9
12.0
11.8
11.7
11.8
12.0
---
11.4
11.0
10.8
11.1
11.2
---
11.7
11.4
11.2
11.4
11.5
---
12.5
13.3
13.6
13.8
14.2
14.2
11.9
12.0
12.5
12.6
13.0
13.2
12.3
12.6
13.1
13.2
13.6
13.8
MONTH
9.3
7.3
8.2
11.3
7.3
9.2
12.0
10.0
11.1
14.2
10.7
12.1
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
1
2
3
4
5
14.1
14.1
13.0
12.3
12.3
6
7
8
9
10
MIN
MEAN
MAX
MEAN
MAX
MEAN
MAX
13.2
13.0
12.2
11.5
11.5
13.7
13.4
12.5
11.9
11.9
13.2
13.0
12.4
12.2
---
12.2
12.2
11.8
11.7
---
12.6
12.6
12.1
11.9
e12.0
12.7
12.1
12.0
12.1
12.6
11.9
11.6
11.6
11.9
11.9
12.4
12.0
11.8
12.0
12.3
12.3
12.4
13.0
13.5
13.3
11.8
11.7
12.1
13.0
12.7
12.0
11.9
12.4
13.2
12.9
12.7
13.0
13.2
13.4
13.3
11.7
11.9
12.2
12.3
12.5
12.1
12.4
12.6
12.8
12.9
12.8
12.5
13.1
13.2
13.0
12.1
12.2
12.1
12.5
12.6
12.4
12.3
12.6
12.9
12.8
12.2
12.0
11.9
12.2
12.1
11.9
11.7
11.4
11.8
11.8
12.0
11.8
11.7
12.0
12.0
13.0
13.4
14.2
14.6
14.4
12.7
12.6
12.0
13.6
13.0
12.8
12.8
13.2
14.2
13.5
11
12
13
14
15
13.0
12.8
12.8
13.0
13.1
12.3
11.8
11.8
11.8
12.1
12.6
12.2
12.2
12.4
12.5
13.0
12.7
12.6
12.8
13.2
12.5
12.3
12.3
12.4
12.2
12.8
12.4
12.4
12.6
12.7
12.3
12.6
12.6
12.5
12.4
11.9
11.9
12.0
12.1
12.0
12.1
12.2
12.3
12.3
12.2
15.9
15.5
14.5
13.9
14.4
12.8
14.5
13.7
13.5
13.6
14.4
15.0
13.9
13.7
13.8
16
17
18
19
20
13.1
13.3
13.1
13.1
13.1
12.1
12.2
12.3
12.2
12.2
12.6
12.7
12.7
12.6
12.6
12.9
12.4
12.4
12.2
12.4
12.3
12.0
12.1
11.5
11.5
12.5
12.2
12.2
11.9
11.9
12.6
12.6
12.6
12.7
12.4
11.9
12.1
12.0
12.2
11.6
12.3
12.4
12.4
12.4
12.2
15.3
15.2
14.4
13.2
12.7
14.2
14.4
13.2
12.6
12.3
14.6
14.7
13.9
12.9
12.4
21
22
23
24
25
13.1
13.1
13.0
13.3
13.1
12.3
12.2
12.3
12.2
12.4
12.6
12.6
12.6
12.7
12.7
12.4
12.6
13.1
13.0
12.9
12.0
12.1
12.4
12.4
12.3
12.2
12.3
12.7
12.7
12.6
12.8
12.3
12.3
12.1
12.0
11.4
11.7
11.9
11.6
11.6
11.8
11.9
12.2
11.8
11.8
12.4
12.6
13.1
13.1
12.9
12.0
12.0
12.3
12.6
12.5
12.2
12.2
12.5
12.8
12.7
26
27
28
29
30
31
12.9
13.1
12.9
13.0
13.1
---
12.2
12.3
12.2
12.2
12.2
---
12.5
12.6
12.5
12.6
12.7
---
12.9
12.8
12.8
12.8
12.7
12.7
12.4
12.4
12.2
12.3
12.3
12.3
12.7
12.7
12.6
12.5
12.5
12.5
12.3
12.1
12.0
12.0
12.3
12.2
11.5
11.7
11.7
11.7
11.6
11.8
11.9
11.9
11.9
11.9
11.9
12.0
12.6
12.4
12.4
12.3
12.3
---
12.4
12.2
12.0
11.9
11.8
---
12.5
12.4
12.1
12.0
12.0
---
MONTH
14.1
11.5
12.6
---
---
12.4
12.8
11.4
12.1
15.9
11.7
13.1
JUNE
e
Estimated
MIN
JULY
MIN
AUGUST
MIN
MEAN
SEPTEMBER
91
COLORADO RIVER MAIN STEM
09402500 COLORADO RIVER NEAR GRAND CANYON , AZ—CONTINUED
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
OCTOBER
MIN
MEAN
MAX
NOVEMBER
MIN
MEAN
MAX
DECEMBER
MIN
MEAN
JANUARY
1
2
3
4
5
894
880
854
855
855
844
822
815
815
816
866
851
829
831
830
857
859
851
849
859
816
812
812
815
816
830
829
826
830
835
837
836
846
841
819
811
798
799
796
793
820
813
826
816
802
819
818
827
826
---
786
785
799
796
---
799
808
809
811
e798
6
7
8
9
10
859
861
874
901
878
811
821
822
823
812
833
835
849
858
831
849
849
851
851
856
808
808
811
816
817
824
820
824
827
829
814
822
808
816
842
793
788
787
787
783
799
801
795
801
825
817
823
814
811
816
795
803
787
787
791
806
812
797
796
800
11
12
13
14
15
845
849
857
852
871
813
815
813
816
826
825
828
829
828
848
861
858
846
841
846
819
820
807
806
808
832
836
822
817
820
835
826
823
816
813
796
796
787
783
785
816
807
801
797
796
816
814
813
826
825
792
786
786
795
792
800
796
801
808
804
16
17
18
19
20
878
849
859
854
850
816
816
817
810
810
851
826
832
827
824
850
859
848
854
842
810
812
809
811
810
823
828
822
831
822
813
836
844
814
815
785
797
791
791
787
800
822
817
801
798
816
815
824
818
819
792
776
794
791
791
800
797
806
800
808
21
22
23
24
25
855
871
875
858
855
813
819
821
820
819
827
847
848
831
832
843
850
853
847
841
810
813
814
806
806
821
824
830
824
819
810
815
819
834
823
787
785
789
791
785
796
797
802
818
802
835
823
825
823
838
806
785
791
796
800
821
799
801
806
823
26
27
28
29
30
31
863
858
851
877
880
861
816
816
807
814
829
815
833
830
825
848
854
833
848
844
840
843
837
---
813
811
809
803
808
---
830
827
819
819
817
---
823
826
--810
816
822
784
796
--789
789
793
810
808
e801
795
802
811
827
824
836
824
810
832
797
797
807
786
787
793
811
811
818
801
794
816
MONTH
901
807
837
861
803
825
---
---
806
---
---
805
e
Estimated
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
FEBRUARY
MIN
MEAN
MAX
MARCH
MIN
MEAN
MAX
APRIL
MIN
MEAN
MAY
1
2
3
4
5
830
851
858
855
843
799
803
833
829
802
816
833
845
841
824
860
853
891
916
898
829
832
844
891
839
842
844
863
904
870
926
921
914
924
923
897
885
883
896
895
909
904
900
906
905
941
949
935
931
960
925
919
908
902
912
931
938
921
913
938
6
7
8
9
10
829
825
828
828
834
801
801
806
807
809
810
811
814
814
822
870
875
870
866
914
835
853
849
846
865
849
862
857
854
891
926
926
940
928
928
897
906
916
902
901
908
916
926
915
915
954
933
920
932
943
933
893
892
915
918
945
917
909
922
928
11
12
13
14
15
847
832
821
827
834
820
800
800
802
806
831
815
807
810
815
948
930
904
900
891
904
884
863
878
867
924
898
886
886
877
937
959
940
927
951
882
931
910
909
922
904
944
926
918
936
937
959
954
939
935
908
923
921
909
895
919
945
937
921
916
16
17
18
19
20
834
837
847
831
829
808
808
819
805
805
816
823
830
815
812
938
942
943
914
918
865
912
891
891
893
899
931
923
901
905
937
914
955
948
985
907
897
898
910
911
924
903
930
927
958
939
913
911
928
933
901
889
886
902
902
926
900
899
912
914
21
22
23
24
25
843
839
837
840
849
809
816
815
821
825
825
824
826
829
836
924
918
916
916
920
895
879
887
882
891
905
894
894
895
902
975
943
975
944
945
927
910
938
922
914
954
924
956
935
927
926
927
927
928
972
905
903
904
886
885
912
912
912
911
934
26
27
28
29
30
31
855
864
869
-------
825
837
830
-------
837
846
847
-------
936
932
925
929
938
930
891
908
896
897
903
906
914
918
908
909
916
916
932
921
954
955
942
---
912
908
920
918
921
---
920
914
938
934
929
---
963
945
941
937
928
939
942
915
915
925
925
925
948
928
929
928
926
930
MONTH
869
799
824
948
829
892
985
882
924
972
885
923
92
COLORADO RIVER MAIN STEM
09402500 COLORADO RIVER NEAR GRAND CANYON , AZ—CONTINUED
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAY
MAX
MIN
MEAN
MAX
JUNE
MIN
MEAN
MAX
JULY
MIN
MEAN
MAX
AUGUST
MIN
MEAN
SEPTEMBER
1
2
3
4
5
940
931
901
904
885
927
873
873
865
858
932
905
888
886
872
888
875
870
-----
865
838
843
-----
875
855
858
e854
e869
835
842
844
840
854
821
825
821
818
821
827
833
828
828
837
839
854
924
895
901
804
804
854
864
864
822
831
904
880
879
6
7
8
9
10
900
889
883
898
896
858
863
852
879
881
877
875
872
886
888
892
868
870
871
873
842
854
851
842
844
864
860
860
854
855
854
831
836
--844
814
811
811
--821
833
818
825
e826
830
910
890
965
1200
1030
872
832
779
773
916
889
868
856
953
971
11
12
13
14
15
900
921
908
891
873
884
854
861
852
851
891
885
885
872
864
863
865
860
863
869
848
844
842
842
847
853
855
853
853
856
840
842
848
832
835
824
829
816
814
815
832
835
830
820
822
1040
829
-------
699
699
-------
875
766
e849
e890
e896
16
17
18
19
20
889
905
900
893
893
863
887
864
861
860
881
895
884
873
875
862
872
860
853
861
838
846
838
837
839
847
854
852
848
850
832
834
826
818
827
814
813
805
804
792
819
819
816
810
806
885
863
887
912
905
860
850
852
860
866
872
857
866
880
880
21
22
23
24
25
889
887
892
896
889
860
860
866
870
861
871
872
880
885
875
857
874
869
856
862
833
847
839
839
823
845
859
850
844
844
--813
813
826
816
--784
781
795
797
e788
797
799
806
805
903
902
1020
1020
963
865
864
861
886
865
879
877
892
921
904
26
27
28
29
30
31
885
869
882
888
881
---
853
850
857
856
856
---
867
858
871
871
871
---
859
856
878
880
909
900
831
827
831
819
818
826
844
838
855
841
854
855
845
828
816
815
820
824
800
797
797
797
799
801
819
811
804
806
807
814
902
895
894
894
904
---
855
853
848
847
871
---
874
867
865
869
882
---
MONTH
940
850
880
---
---
853
---
---
818
---
---
877
e
Estimated
93
PUMP HOUSE WASH SPRING BASIN
09403013 PUMP HOUSE WASH SPRING NEAR GRAND CANYON, AZ
LOCATION.--Lat 36° 04'43", long 112° 07'31", in sec. 13, T.31 N., R.2 E. (unsurveyed), Coconino County, Hydrologic Unit 15010002, on right bank at Indian Garden, 100 ft
northeast of pump station and 2 mi north of Grand Canyon Village in Grand Canyon National Park.
DRAINAGE AREA.--Less than 0.05 mi2.
PERIOD OF RECORD.--June 1995 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,800 ft above sea level, from topographic map.
REMARKS.--No estimated daily discharge. Records fair.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.10
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.11
0.11
0.10
0.09
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
6
7
8
9
10
0.10
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.10
0.10
0.10
0.10
11
12
13
14
15
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.10
0.10
0.10
0.10
16
17
18
19
20
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.11
0.10
0.09
0.09
21
22
23
24
25
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.09
26
27
28
29
30
31
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
---
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
-------
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.09
---
0.09
0.09
0.09
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
---
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.10
0.10
0.09
0.10
---
TOTAL
MEAN
MAX
MIN
AC-FT
2.93
0.095
0.10
0.09
5.8
2.70
0.090
0.09
0.09
5.4
2.79
0.090
0.09
0.09
5.5
2.79
0.090
0.09
0.09
5.5
2.52
0.090
0.09
0.09
5.0
2.79
0.090
0.09
0.09
5.5
2.71
0.090
0.10
0.09
5.4
2.93
0.095
0.11
0.09
5.8
2.71
0.090
0.10
0.09
5.4
2.81
0.091
0.10
0.09
5.6
2.83
0.091
0.10
0.09
5.6
2.87
0.096
0.11
0.09
5.7
CAL YR 2001
WTR YR 2002
TOTAL 36.33
TOTAL 33.38
MEAN 0.100
MEAN 0.091
MAX 0.11
MAX 0.11
MIN 0.09
MIN 0.09
AC-FT 72
AC-FT 66
94
HERMIT CREEK BASIN
09403043 HERMIT CREEK ABOVE TONTO TRAIL NEAR GRAND CANYON, AZ
LOCATION.--Lat 36° 04'51", long 112° 12'47", in sec. 7, T.31 N., R.2 E. (unsurveyed), Hydrologic Unit 15010002, on the right bank approximately 0.25 mi upstream of Tonto
Trail crossing, and 5 mi northwest of Grand Canyon Village in Grand Canyon National Park.
DRAINAGE AREA.--10.50 mi2.
PERIOD OF RECORD.--Sept. 1994 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 2,920 ft above sea level, from topographic map.
REMARKS.--Records poor. Daily discharges are not calculated for periods of no gage-height record and when instantaneous discharge exceeds 1.5 ft3/s.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.76
0.76
0.76
0.76
0.76
0.67
0.67
0.67
0.67
0.67
0.67
0.68
0.67
0.68
0.67
0.67
0.67
0.67
0.67
0.67
0.65
0.65
0.65
0.65
0.66
0.67
0.67
0.67
0.67
0.67
0.66
0.67
0.66
0.64
0.66
0.80
0.78
0.76
0.76
0.76
0.67
0.67
0.67
0.67
0.67
0.63
0.63
0.70
0.70
0.67
0.67
0.69
0.71
0.69
0.67
0.67
0.67
0.67
0.67
0.67
6
7
8
9
10
0.76
0.80
0.80
0.80
0.80
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.66
0.65
0.66
0.66
0.66
0.67
0.67
0.68
0.67
0.67
0.67
0.69
0.71
0.71
0.71
0.76
0.76
0.78
0.76
0.76
0.67
0.64
0.63
0.63
0.63
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
--0.74
-----
11
12
13
14
15
0.79
0.76
0.76
0.76
0.76
0.66
0.63
0.63
0.63
0.63
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.66
0.66
0.66
0.66
0.66
0.67
0.67
0.67
0.67
0.67
0.71
0.70
0.71
0.70
0.70
0.76
0.76
0.76
0.76
0.76
0.63
0.63
0.63
0.63
0.63
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
-----------
16
17
18
19
20
0.76
0.76
0.76
0.74
0.71
0.63
0.63
0.63
0.64
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.66
0.66
0.66
0.65
0.66
0.66
0.67
0.67
0.67
0.67
0.67
0.72
0.72
0.74
0.74
0.72
0.76
0.76
0.76
0.76
0.71
0.63
0.63
0.63
0.63
0.63
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.68
--0.69
0.67
0.67
0.67
21
22
23
24
25
0.71
0.71
0.71
0.71
0.71
0.67
0.67
0.67
0.67
0.68
0.67
0.67
0.67
0.67
0.67
0.65
0.66
0.67
0.65
0.64
0.66
0.66
0.67
0.66
0.66
0.67
0.67
0.67
0.67
0.67
0.71
0.71
0.71
0.71
0.72
0.71
0.71
0.71
0.71
0.71
0.63
0.63
0.63
0.63
0.63
0.67
0.67
0.67
0.69
0.69
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
26
27
28
29
30
31
0.71
0.68
0.67
0.67
0.67
0.67
0.70
0.67
0.67
0.67
0.67
---
0.67
0.67
0.67
0.67
0.67
0.68
0.66
0.67
0.64
0.66
0.66
0.65
0.65
0.67
0.67
-------
0.67
0.67
0.67
0.67
0.67
0.67
0.75
0.79
0.79
0.80
0.80
---
0.71
0.71
0.71
0.67
0.67
0.67
0.63
0.63
0.63
0.63
0.63
---
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
0.67
---
TOTAL
MEAN
MAX
MIN
22.94
0.740
0.80
0.67
19.82
0.661
0.70
0.63
20.80
0.671
0.68
0.67
20.60
0.665
0.67
0.64
18.44
0.659
0.67
0.65
20.78
0.670
0.68
0.67
21.43
0.714
0.80
0.64
22.92
0.739
0.80
0.67
19.15
0.638
0.67
0.63
20.79
0.671
0.70
0.63
20.86
0.673
0.71
0.67
---------
95
KANAB CREEK BASIN
09403600 KANAB CREEK NEAR KANAB, UT
LOCATION.--Lat 37° 06'02", long 112° 32'50", in NE1/4NE1/4SW1/4 sec. 5, T. 43 S., R. 6 W., Kane County, Hydrologic Unit 15010003, on left bank at upstream side of bridge on
U.S. Highway 89, 300 ft upstream from Tiny Canyon and 3.5 mi north of Kanab.
DRAINAGE AREA.--198 mi2.
PERIOD OF RECORD.--July 1959 to Sept. 1968 (peaks only). January 1979 to current year
REVISED RECORDS.--WDR UT-98-1: 1997, daily values.
GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 5,060 ft above NGVD of 1929, from topographic map. A crest-stage gage from July 22, 1959, to
Sept. 30, 1968, at different datum. July 6, 1979 to September 18, 1984 water-stage recorder at same site, different datum.
REMARKS.--Records poor. Several diversions above station for irrigation and stock watering.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,030 ft3/s, Sept. 8, 1961, gage height, 8.39 ft, from rating curve extended above 31 ft3/s on basis of slope area
measurement at gage height, 7.09 ft; minimum daily discharge, 2.9 ft3/s, July 27, 2000.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 200 ft3/s and (or) maximum (*):
Date
Nov. 28..........
Time
Discharge (ft3/s) Gage height (ft)
1200
*14
*5.68
Minimum daily discharge, 3.3 ft3/s, Jan 23, Jun 1, Aug 20.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
5.7
5.5
5.7
5.7
5.7
4.5
4.6
4.6
4.7
4.7
6.6
6.2
5.8
6.5
6.0
6.1
6.2
6.4
6.4
6.2
e3.9
e4.0
e4.6
5.0
5.6
6.3
7.7
8.7
6.8
6.7
10
9.2
11
9.4
9.1
7.8
7.8
7.3
6.5
6.1
3.3
4.0
5.8
6.3
6.4
5.2
5.5
6.0
5.8
5.9
4.5
5.0
5.6
5.0
4.8
4.2
4.4
4.5
4.5
4.4
6
7
8
9
10
5.6
5.8
5.8
5.5
5.2
4.7
4.8
4.9
5.0
4.7
5.9
5.7
5.6
5.7
6.1
6.0
5.6
5.8
5.7
5.8
6.1
5.7
5.4
5.1
5.6
6.1
6.5
7.1
7.5
7.8
7.7
7.1
6.9
7.4
7.6
5.8
6.8
7.8
7.8
8.3
5.4
5.7
5.0
4.7
5.4
5.5
5.9
5.9
6.3
6.0
4.9
4.8
4.7
4.3
3.8
5.0
7.1
6.2
5.5
5.8
11
12
13
14
15
5.3
5.4
5.4
5.4
5.3
4.5
4.5
4.9
4.9
4.7
6.0
6.1
e5.8
e6.1
e6.0
5.7
5.6
5.8
5.5
4.9
5.1
4.6
5.1
4.2
4.5
7.5
7.8
8.2
9.9
8.6
8.6
7.7
7.9
7.6
7.3
8.6
8.9
8.7
8.4
7.4
5.6
5.1
4.9
4.7
5.1
5.6
5.9
5.9
5.9
6.5
3.4
3.6
3.5
3.7
3.8
5.8
5.5
4.5
4.5
3.8
16
17
18
19
20
5.2
5.1
4.8
4.8
4.7
4.6
4.5
4.7
5.0
5.3
e5.8
e5.9
e6.0
e6.1
e6.5
5.0
5.6
5.6
e5.4
5.7
5.2
5.0
5.0
5.2
6.4
10
11
10
9.1
11
6.9
7.7
7.3
7.2
7.8
6.4
5.9
5.5
5.9
7.6
4.7
4.9
4.9
4.8
5.0
7.2
7.4
6.9
7.4
7.9
3.9
3.5
4.0
3.9
3.3
4.7
4.6
4.8
4.6
4.7
21
22
23
24
25
4.8
4.9
4.7
4.5
5.0
5.3
5.3
5.5
6.3
7.5
e6.3
e6.1
e6.0
e5.5
e5.4
4.3
3.6
e3.3
e3.6
e3.9
5.8
6.3
7.1
7.2
8.0
9.3
9.8
11
11
10
8.3
7.1
6.3
6.5
6.3
8.4
8.3
10
10
9.5
5.4
5.6
5.9
6.3
5.8
7.4
6.7
5.6
6.4
6.6
3.9
4.1
4.2
4.0
3.7
4.6
4.4
4.4
4.4
4.3
26
27
28
29
30
31
4.7
4.6
4.5
4.5
4.5
4.3
7.2
7.0
7.3
7.1
6.7
---
e5.3
e5.3
e5.8
e6.2
6.6
6.2
4.4
5.1
4.2
4.4
e4.0
e3.9
7.3
7.7
7.3
-------
9.3
11
9.8
9.4
9.4
9.4
5.8
5.9
7.1
8.0
6.9
---
9.1
8.9
8.2
5.8
4.2
3.6
5.8
5.7
5.5
5.5
5.6
---
6.3
5.6
5.3
5.2
5.0
4.7
4.1
4.3
4.4
4.1
4.3
4.6
4.0
4.1
4.1
4.6
5.1
---
158.6
5.116
5.8
4.3
315
160.0
5.333
7.5
4.5
317
185.1
5.971
6.6
5.3
367
159.7
5.152
6.4
3.3
317
158.0
5.643
8.0
3.9
313
273.7
8.829
11
6.1
543
229.6
7.653
11
5.8
455
231.3
7.461
10
3.6
459
158.8
5.293
6.4
3.3
315
189.4
6.110
7.9
4.7
376
129.7
4.184
5.6
3.3
257
143.1
4.770
7.1
3.8
284
6.963
12.1
1981
4.36
1986
7.112
13.8
1981
3.90
2000
8.228
16.5
1981
4.07
1995
9.971
28.1
1998
4.77
2002
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
10.43
25.7
1982
5.12
2002
9.956
15.2
1988
5.33
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
10.80
21.7
1980
5.31
1990
12.36
27.9
1997
5.15
2002
15.91
45.1
1980
5.64
2002
FOR 2001 CALENDAR YEAR
2821.7
7.731
54
3.2
3.5
5600
16
5.7
4.3
23.83
72.4
1983
8.83
2002
22.39
132
1980
6.81
1990
9.655
27.6
1980
5.62
2001
FOR 2002 WATER YEAR
2177.0
5.964
Sep 17
Aug 5
Jul 30
11
3.3
3.6
4320
8.3
5.7
4.2
Mar 17
Jan 23
Aug 11
WATER YEARS 1980 - 2002
12.27
28.4
5.96
354
2.9
3.0
8890
19
8.9
5.3
1980
2002
Apr 6 1980
Jul 27 2000
Jun 13 1986
96
HAVASU CREEK BASIN
09404110 HAVASU CREEK AT SUPAI, AZ
LOCATION.--Lat 36° 13'37", long 112° 41'15" (unsurveyed), in Coconino County, Hydrologic Unit 15010004, on the Havasupai Indian Reservation on the right bank, about 1.5 mi
upstream from Supai.
DRAINAGE AREA.--2,809 mi2, including 209 mi2 which are non-contributing.
PERIOD OF RECORD.--Sept. 1995 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,240 ft above sea level from topographic map.
REMARKS.--Records fair except for estimated daily discharges and daily discharges greater than 100 ft3/s, which are poor. Several diversions and small impoundments
upstream for irrigation and public supply.
EXTREMES OUTSIDE PERIOD OF RECORD.--Jan. 2, 1910, maximum discharge unknown, flood wave reported as about 20 ft high through Supai Village. Sept. 3, 1990,
20,300 ft3/s, based on slope-area computation for site 12 mi downstream at the mouth. Flood wave through Supai Village reported as about 14 ft for this event; minimum
discharge unknown.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, unknown, Aug. 10, 1997, gage height, 20.8 ft (estimated from highwater mark); minimum daily 56 ft3/s,
Dec. 15, 1998.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, unknown Sept. 8 at 1445, gage height, 19.46 ft. Minimum daily discharge, 62 ft3/s on many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
64
64
65
66
66
63
62
62
62
62
65
64
65
66
64
66
65
66
65
65
64
65
63
64
64
65
64
64
64
65
65
65
65
64
65
67
67
66
66
66
66
66
66
64
63
65
65
65
65
65
64
64
64
64
64
62
62
63
62
63
6
7
8
9
10
86
66
66
66
66
63
64
62
62
63
64
64
64
64
66
65
65
65
65
65
64
64
64
62
63
65
66
66
64
65
66
66
66
66
65
67
67
66
65
65
63
63
65
66
67
65
65
65
64
64
64
64
64
64
64
65
136
125
65
65
11
12
13
14
15
66
65
65
65
64
64
63
64
64
64
66
66
66
66
65
66
66
65
66
66
64
64
65
65
65
65
65
65
65
65
65
65
67
64
64
65
64
66
66
65
67
66
66
66
66
64
64
63
63
64
63
62
62
62
62
e100
71
68
67
65
16
17
18
19
20
64
64
64
64
64
64
64
64
64
64
64
65
65
65
65
65
65
65
65
65
65
65
65
65
65
66
65
65
64
63
64
65
65
65
66
65
64
65
65
65
66
66
66
64
64
65
65
66
66
66
62
62
62
62
64
65
65
66
65
65
21
22
23
24
25
64
64
64
64
64
64
65
66
66
68
65
65
65
64
64
65
65
65
65
65
64
64
65
65
64
64
65
65
65
66
65
66
66
66
66
66
66
65
65
65
65
64
63
64
65
66
66
65
68
64
64
64
64
64
64
65
65
65
65
64
26
27
28
29
30
31
63
64
63
62
63
64
66
66
65
66
65
---
64
64
63
64
65
67
65
66
65
65
66
64
63
64
64
-------
66
66
65
65
65
65
66
66
66
66
66
---
65
65
65
65
65
65
66
66
66
66
65
---
64
64
64
64
64
64
64
64
64
63
62
62
64
65
65
65
64
---
2019
65.13
86
62
4000
0.02
1921
64.03
68
62
3810
0.02
2009
64.81
67
63
3980
0.02
2022
65.23
66
64
4010
0.02
1798
64.21
65
62
3570
0.02
2013
64.94
66
63
3990
0.02
1962
65.40
67
64
3890
0.02
2029
65.45
67
64
4020
0.02
1956
65.20
67
63
3880
0.02
2007
64.74
68
63
3980
0.02
1962
63.29
64
62
3890
0.02
2112
70.40
136
62
4190
0.03
65.31
68.9
1996
62.4
1997
66.98
70.5
1998
63.6
2000
68.83
73.5
2000
63.3
2002
69.51
82.7
1998
64.0
2001
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
64.99
69.6
2001
59.7
2000
62.72
65.0
1998
60.7
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
64.92
67.1
1998
63.4
2000
64.33
65.6
1996
63.3
1999
64.12
65.9
2000
62.3
1998
64.59
67.1
1999
63.3
2001
FOR 2001 CALENDAR YEAR
23873
65.41
150
Jul
58
Jan
59
Jan
47350
0.023
68
65
62
65.82
69.4
1999
63.0
1996
64.74
69.4
2000
61.6
1997
FOR 2002 WATER YEAR
23810
65.23
6
7
4
136
Sep 7
62
Oct 29
62
Aug 12
47230
0.023
66
65
63
WATER YEARS 1995 - 2002
65.57
67.0
1998
65.0
1996
300
Aug 10 1997
56
Dec 15 1998
57
Dec 13 1998
47500
0.023
68
65
62
97
HAVASU CREEK BASIN
09404115 HAVASU CREEK ABOVE THE MOUTH, NEAR SUPAI, AZ
LOCATION.--Lat 36° 18'24", long 112° 45'39", unsurveyed, Coconino County, Hydrologic Unit 15010004, in Grand Canyon National Park, 8.0 mi downstream from Supai, 69 mi
downstream from Phantom Ranch, 173 mi downstream from Glen Canyon Dam, and 199 mi upstream from Hoover Dam.
DRAINAGE AREA.--3,020 mi2, including 209 mi2 which are noncontributing.
PERIOD OF RECORD.--Nov. 1990 to Sept. 1997, June 2000 to current year.
GAGE.--Water-stage recorder. Datum of gage is 1,793.81 ft above sea level.
REMARKS.--Records good, except for discharges greater than 100 ft3/s which are poor. Several diversions and small impoundments upstream for irrigation and public supply.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 13,400 ft3/s, Feb. 21, 1991, gage height, 23.4 ft; minimum daily 63 ft3/s on many days in 1997.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge unknown, Jan. 2, 1910, flood wave reported as about 20 ft high through Supai village. Sept. 3, 1990,
26.3 ft, 20,300 ft3/s, based on slope-area computation, flood wave through Supai village reported as about 14 ft for this event. Minimum discharge unknown.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 1,850 ft3/s July 24 at 1630, gage height, 13.12 ft. Minimum daily discharge, 65 ft3/s Feb. 10.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
71
70
70
70
70
69
68
68
69
69
72
71
71
73
72
69
69
69
69
68
66
67
67
67
67
68
67
67
67
67
68
67
67
67
67
68
69
69
69
69
69
69
69
69
69
67
68
69
69
68
69
69
70
69
69
70
70
71
70
71
6
7
8
9
10
87
74
71
70
70
69
69
69
69
69
71
70
70
71
70
67
67
68
68
68
67
67
67
66
65
68
68
68
68
68
68
68
68
67
67
68
69
69
69
69
69
68
68
68
68
68
68
68
68
69
70
69
68
69
69
75
144
117
77
75
11
12
13
14
15
69
69
69
69
69
69
69
70
70
69
70
70
69
70
70
67
67
67
68
68
66
67
67
67
67
68
68
69
72
72
67
68
68
68
69
70
69
69
70
70
68
67
67
68
67
69
69
70
68
67
69
69
70
70
70
106
75
72
71
70
16
17
18
19
20
68
69
69
69
68
69
69
69
69
69
69
68
68
69
69
67
67
67
66
67
67
68
69
68
68
69
68
69
68
68
69
69
69
68
68
69
69
69
69
69
67
67
67
67
67
69
69
68
68
68
69
70
70
70
69
70
70
70
70
69
21
22
23
24
25
68
69
69
68
68
70
70
70
70
71
69
69
69
68
68
67
67
67
66
66
67
67
68
68
68
68
68
68
70
70
68
68
68
67
68
70
69
69
69
70
67
68
68
68
68
68
68
67
194
68
69
68
69
68
68
68
68
68
68
68
26
27
28
29
30
31
68
69
68
67
68
69
71
70
70
71
72
---
68
69
69
69
69
70
67
67
67
68
68
67
67
67
67
-------
69
69
69
69
69
69
68
69
68
68
68
---
70
70
69
70
70
70
68
68
68
68
67
---
69
67
67
69
68
68
69
69
68
69
69
70
68
67
69
69
68
---
2162
69.74
87
67
4290
2085
69.50
72
68
4140
2160
69.68
73
68
4280
2090
67.42
69
66
4150
1879
67.11
69
65
3730
2125
68.55
72
67
4210
2037
67.90
69
67
4040
2147
69.26
70
68
4260
2036
67.87
69
67
4040
2240
72.26
194
67
4440
2143
69.13
70
68
4250
2264
75.47
144
67
4490
TOTAL
MEAN
MAX
MIN
AC-FT
CAL YR 2001
WTR YR 2002
TOTAL 26191
TOTAL 25368
MEAN 71.76
MEAN 69.50
MAX 157
MAX 194
MIN 67
MIN 65
AC-FT 51950
AC-FT 50320
98
COLORADO RIVER MAIN STEM
09404200 COLORADO RIVER ABOVE DIAMOND CREEK NEAR PEACH SPRINGS, AZ
LOCATION.--Lat 35° 46'25", long 113° 21'46", sec. 33, T.28 N., R.10 W., unsurveyed, Mohave County, Hydrologic Unit 15010002, in Lake Mead National Recreation Area, on
the right bank, 0.6 mi upstream from Diamond Creek, 138 mi downstream from Phantom Ranch, 25 mi north of Peach Springs, 242 mi downstream from Glen Canyon Dam,
and 130 mi upstream from Hoover Dam.
DRAINAGE AREA.--149,316 mi2, including 3,959 mi2 in Great Divide basin in southern Wyoming, and 697 mi2 on the Colorado Plateau, which are noncontributing.
PERIOD OF RECORD.--June 1983 to Dec. 1983, Sept. 1985 to Feb. 1986, Oct. 1989 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 1,340 ft above sea level, from topographic map.
REMARKS.--Records good, except for estimated daily discharges which are fair. Flow regulated since Mar. 13, 1963, by Lake Powell 242 mi upstream. Many diversions above
Lake Powell for irrigation, municipal, and industrial use. Several unregulated tributaries below Glen Canyon Dam.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge 97,000 ft3/s, June 30, 1983, gage height, unknown; minimum 3,710 ft3/s, Mar. 21, 1990, gage height, 43.89 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1868, about 300,000 ft3/s, about July 8, 1884, based on flow studies at Lees Ferry.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 21,600 ft3/s Sept.12 at 1245, gage height, 51.90 ft. Minimum daily discharge, 7,880 ft3/s Oct. 2.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
8490
7880
10400
10800
10700
10800
10900
e11000
e11000
e10300
11600
11700
14700
11200
14800
11800
14800
12500
14800
14600
14400
14400
12100
10600
10200
11800
11700
e11800
e10300
e10000
9860
9860
10900
10900
10900
10900
11000
10800
10900
11400
8780
8770
12500
12500
13800
12900
12500
16000
16200
16100
16700
16600
15900
15900
15300
16100
15300
9980
8430
9090
6
7
8
9
10
10800
10900
10800
8600
10500
e9800
11100
11100
11000
10800
15100
15000
14700
14700
13800
14800
12800
11900
14500
14600
11800
11900
11700
11500
11600
10400
10500
10600
10700
10700
10900
11000
10000
9950
10900
10700
10000
11100
11000
10900
13900
13600
13600
13600
12700
14100
15700
15300
14100
15600
14500
15600
16000
16300
16600
9160
9200
10700
12100
11000
11
12
13
14
15
11100
11100
10900
10900
10800
11100
10700
9590
11000
11000
10700
14400
14600
14700
14500
14700
14700
14800
13000
11700
10600
10200
12000
12000
12000
10100
9910
10600
10500
10600
10900
10900
11200
11000
10200
10900
11000
10400
9980
10900
12400
13600
13600
13600
13700
15600
15600
16500
16300
16200
16200
15100
14500
15800
15800
10100
16400
13200
11000
10900
16
17
18
19
20
8540
10400
10900
10900
10900
11100
11100
10900
10800
9930
14500
14100
10900
14300
14500
14300
14200
14800
14600
14600
11900
11900
10700
10400
11900
10700
10700
10200
10100
11000
9900
10900
10900
10900
11000
11000
11000
11100
10900
10700
13700
12800
12400
13600
13700
14600
16400
16400
16400
16400
15900
16000
16000
15200
14500
10700
11400
11800
10200
9510
21
22
23
24
25
11000
10800
8570
10500
10800
11100
11100
11000
10100
11100
14900
14800
14700
14200
11000
12500
11600
14500
14600
14600
12000
12000
11900
12000
10700
10700
10600
10700
10700
9790
11100
10300
10000
11200
11100
9990
10600
10900
11000
10900
13700
13700
13900
13000
12300
16000
15900
14300
16100
16500
16300
16000
15300
15800
15800
9310
9230
8620
8300
9020
26
27
28
29
30
31
10900
10900
10900
10800
8590
10500
11100
10000
11600
11600
11800
---
14400
11400
14300
14700
14800
14100
14600
14600
12500
12700
14700
14300
10400
11900
12000
-------
9920
10400
10400
10700
10600
10600
11100
11100
11000
10200
9920
---
9070
8780
8770
8770
8800
8740
13600
13700
13700
13700
13700
---
16100
16000
16200
15900
14500
16400
15100
14300
15900
16200
16100
16000
9350
9160
9010
8970
8260
---
TOTAL
MEAN
MAX
MIN
AC-FT
320570
10340
11100
7880
635900
325520
10850
11800
9590
645700
427800
13800
15100
10700
848500
429700
13860
14800
11600
852300
326700
11670
14400
10200
648000
328020
10580
11800
9790
650600
319990
10670
11200
9860
634700
322900
10420
11400
8740
640500
391850
13060
13900
8770
777200
482800
15570
16500
12500
957600
487200
15720
16700
14300
966400
315500
10520
16400
8260
625800
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 4430600
TOTAL 4478550
MEAN 12140
MEAN 12270
MAX 17200
MAX 16700
MIN 7600
MIN 7880
AC-FT 8788000
AC-FT 8883000
99
COLORADO RIVER MAIN STEM
09404200 COLORADO RIVER ABOVE DIAMOND CREEK NEAR PEACH SPRINGS, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--June 1983 to Dec. 1983, Sept. 1985 to Feb. 1985, Sept. 1989 to Apr. 1993, and Nov. 1996 to current year.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Aug. 1990 to Apr. 1993.
pH: Aug. 1990 to Apr. 1993.
WATER TEMPERATURES: Aug. 1990 to Apr. 1993.
DISSOLVED-OXYGEN CONCENTRATION: Aug. 1990 to Apr. 1993.
SUSPENDED-SEDIMENT DISCHARGE: Aug. 1990 to Apr. 1993.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
Time
Sample
type
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
1205
1215
9
7
12200
12200
730
--
11.6
--
111
--
8.2
--
850
--
19.5
19.5
11.5
11.5
110
--
260
--
65.7
--
1045
1055
9
7
16200
16200
740
--
11.1
--
98
--
8.3
--
838
--
6.5
6.5
8.5
8.5
110
--
260
--
64.8
--
1050
1100
9
7
11700
11700
---
10.9
10.9
94
--
8.2
8.3
802
802
12.9
12.9
9.2
9.2
100
--
240
--
60.9
--
1145
1155
9
7
10900
10900
728
--
10.7
--
100
--
8.4
--
923
--
13.7
13.7
10.6
10.6
130
--
270
--
68.9
--
1010
1020
9
7
10900
10900
725
--
S11.6f
--
S108f
--
8.5
--
898
--
24.1
24.1
14.1
14.1
120
--
280
--
70.6
--
1035
1045
1105
1115
9
7
9
7
12700
12700
15300
15300
728
-727
727
8.7
-10.7
10.7
95
-116
116
8.1
-8.2
8.3
936
-890
892
36.5
36.5
30.0
30.0
17.0
17.0
17.0
17.0
130
-140
140
270
-280
280
67.7
-71.5
71.2
0830
0840
9
7
18400
18400
730
--
10.2
--
108
--
7.9
--
859
--
34.5
34.5
16.0
16.0
140
--
270
--
70.6
--
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SODIUM
ADSORPTION
RATIO
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
BROMIDE
DISSOLVED
(MG/L
AS BR)
(71870)
SILICA,
DISSOLVED
(MG/L
AS
SIO2)
(00955)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
23.0
--
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
3.50p
--
2
--
75.9
--
145
--
173
--
2
--
.04
--
68.9
--
.3
--
7.77
--
179
--
.73
--
22.8
--
3.26
--
2
--
75.0
--
144
--
172
--
2
--
.04
--
68.2
--
.3
--
7.69
--
177
--
.75
--
22.3
--
3.34
--
2
--
66.8
--
141
--
168
--
1
--
.04
--
57.6
--
.3
--
7.27
--
180
--
.68
--
24.4
--
3.60
--
2
--
79.2
--
147
--
174
--
2
--
.04
--
77.5
--
.3
--
7.19
--
201
--
.81
--
25.4
--
3.43
--
2
--
83.4
--
158
--
186
--
3
--
.04
--
76.5
--
.3
--
7.21
--
203
--
.81
--
24.6
-24.5
24.3
3.38
-3.30
3.18
2
-2
2
85.0
-80.6
80.3
146
-140
139
174
-167
166
2
-1
2
.04
-E.02
E.02
82.7
-70.9
69.4
.3
-.3
.3
7.21
-7.50
7.45
198
-197
196
.82
-.76
.77
23.5
--
3.48
--
2
--
81.7
--
133
--
160
--
1
--
E.02n
--
63.9
--
.3
--
7.84
--
194
--
.73
--
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
100
COLORADO RIVER MAIN STEM
09404200 COLORADO RIVER ABOVE DIAMOND CREEK NEAR PEACH SPRINGS, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,
AMMONIA
DISSOLVED
(MG/L
AS N)
(00608)
NITROGEN,AMMONIA +
ORGANIC
DIS.
(MG/L
AS N)
(00623)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
PHOSPHORUS
DISSOLVED
(MG/L
AS P)
(00666)
ORTHOPHOSPHATE,
DISSOLVED
(MG/L
AS P)
(00671)
536
--
513
--
E.008
--
.15
--
.18
--
.39
--
.237
--
<.002
--
.42
--
<.004
--
<.007
--
.006r
--
2.5
--
554
--
507
--
E.014
--
.13
--
.21
--
.40
--
.274
--
<.002
--
.48
--
<.004
--
<.007
--
.034
--
2.4
--
500
--
484
--
<.015
<.015
.16
.17
.17
.16
.30
.32
.147
.146
<.002
<.002
.31
.31
E.003
E.003
<.007
<.007
.006
.013
2.9
2.8
594
--
552
--
<.015
--
E.10
--
.14
--
---
.275
--
<.002
--
.42
--
<.004
--
<.007
--
.011
--
2.7
--
597
--
566
--
E.013
--
.13
--
.17
--
.36
--
.235
--
<.002
--
.41
--
<.004
--
<.007
--
.011
--
1.5
--
604
-562
569
558
-541
537
E.011
-E.008
<.015
.17
-.15
.14
.19
-.23
.11
.42
-.41
.40
.250
-.260
.259
<.002
-<.002
<.002
.44
-.49
.37
<.004
-<.004
<.004
<.007
-<.007
<.007
.021
-.006
.005
2.8
-1.6
1.7
539
--
527
--
<.015
--
.13
--
.36
--
.43
--
.296
--
<.002
--
.65
--
E.004
--
<.007
--
.191
--
2.0
--
CARBON,
ORGANIC
PARTICULATE
TOTAL
(MG/L
AS C)
(00689)
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
COBALT,
DISSOLVED
(UG/L
AS CO)
(01035)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
NITROGEN
DISSOLVED
(MG/L
AS N)
(00602)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
NITROGEN,
NO2+NO3
DISSOLVED
(MG/L
AS N)
(00631)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
.8
--
1
--
.23
--
1.6
--
85
--
<.06
--
70
--
1.4
--
2
--
.18
--
1.7
--
85
--
<.06
--
97
--
.2
.8
1
--
.21
--
1.9
--
80
--
<.06
--
.5
--
<1
--
.36
--
2.4
--
88
--
.5
--
1
--
.25
--
2.1
--
.8
-.7
.9
<1
-<1
<1
.16
-.22
.22
1.9
--
2
--
.16
--
NITROGEN,
NITRITE
DISSOLVED
(MG/L
AS N)
(00613)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
.20r
--
NITROGEN,
TOTAL
(MG/L
AS N)
(00600)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
CARBON,
ORGANIC
DISSOLVED
(MG/L
AS C)
(00681)
<.8
--
.15
--
1.2
--
<10
--
1.42r
--
<.04
--
<.8
--
.16
--
1.4
--
<10
--
<.08
--
86
--
<.04
--
<.8
--
.13
--
1.1
--
<10
--
<.08
--
<.06
--
93
--
E.02
--
<.8
--
.15
--
1.6
--
<10
--
E.04
--
84
--
<.06
--
104
--
<.04
--
<.8
--
.11
--
1.6
--
<10
--
E.06
--
2.1
-2.0
2.0
87
-90
90
<.06
-<.06
<.06
95
-91
89
<.04
-<.04
<.04
<.8
-<.8
<.8
.21
-.14
.13
1.7
-1.7
1.7
<10
-<10
<10
E.05
-<.08
<.08
1.8
--
133
--
<.06
--
78
--
<.04
--
<.8
--
.17
--
1.5
--
<10
--
<.08
--
101
COLORADO RIVER MAIN STEM
09404200 COLORADO RIVER ABOVE DIAMOND CREEK NEAR PEACH SPRINGS, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
LITHIUM
DISSOLVED
(UG/L
AS LI)
(01130)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MOLYBDENUM,
DISSOLVED
(UG/L
AS MO)
(01060)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
STRONTIUM,
DISSOLVED
(UG/L
AS SR)
(01080)
VANADIUM,
DISSOLVED
(UG/L
AS V)
(01085)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ALPHA
COUNT,
2 SIGMA
WAT DIS
AS
TH-230
(PCI/L)
(75987)
ALPHA
RADIO.
WATER
DISS
AS
TH-230
(PCI/L)
(04126)
BETA,
2 SIGMA
WATER,
DISS,
AS
CS-137
(PCI/L)
(75989)
GROSS
BETA,
DISSOLVED
(PCI/L
AS
CS-137)
(03515)
33.6
--
.6
--
3.6
--
1.45
--
1.6
--
<1
--
707
--
1.7
--
<1
--
---
---
---
---
37.6
--
1.1
--
3.6
--
1.00
--
2.0
--
<1
--
732
--
2.3
--
8
--
---
---
---
---
34.2
--
.7
--
3.8
--
1.01
--
2.1
--
<1
--
715
--
3.0
--
1
--
---
---
---
---
36.3
--
1.3
--
5.6
--
1.17
--
3.8
--
<1
--
789
--
1.6
--
2
--
---
---
---
---
35.7
--
.6
--
4.0
--
.59
--
2.5
--
<1
--
770
--
2.2
--
1
--
---
---
---
---
37.9
-36.3
36.8
2.8
-.8
.8
3.9
-4.2
4.1
.70
-.42
.38
2.5
-2.6
2.5
<1
-<1
<1
753
-765
763
2.0
-2.3
2.2
<1
-4
3
-----
-----
-----
-----
30.3
--
.1
--
4.0
--
1.76
--
2.0
--
<1
--
813
--
2.8
--
1
--
2.7
--
5
--
3.4
--
8
--
RA-226
2 SIGMA
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(75943)
RA-226
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(75944)
U-234
2 SIGMA
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(75941)
RA-226
2 SIGMA
WATER,
DISS,
(PCI/L)
(76001)
RADIUM
226,
DISSOLVED,
RADON
METHOD
(PCI/L)
(09511)
URANIUM
NATURAL
DISSOLVED
(UG/L
AS U)
(22703)
U-234
2 SIGMA
WATER,
DISS,
(PCI/L)
(75992)
URANIUM
-234
WATER
DISSOLV
(PCI/L)
(22610)
U-235
2 SIGMA
WATER,
DISS,
(PCI/L)
(75994)
URANIUM
-235
WATER,
DISS
(PCI/L)
(22620)
U-238
2 SIGMA
WATER,
DISS,
(PCI/L)
(75991)
URANIUM
-238
WATER
DISSOLV
(PCI/L)
(22603)
U-234
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(75942)
---
---
3.08
--
---
---
---
---
---
---
---
---
---
---
---
---
3.26
--
---
---
---
---
---
---
---
---
---
---
---
---
3.19
--
---
---
---
---
---
---
---
---
---
---
---
---
4.01
--
---
---
---
---
---
---
---
---
---
---
---
---
3.75
--
---
---
---
---
---
---
---
---
---
---
-----
-----
3.58
-3.82
3.80
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
.03
--
.13
--
3.71
--
.41
--
.02
--
M
--
.24
--
.05
--
.2
--
.05
--
.1
--
2.2
--
1.2
--
102
COLORADO RIVER MAIN STEM
09404200 COLORADO RIVER ABOVE DIAMOND CREEK NEAR PEACH SPRINGS, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
15...
15...
DEC
13...
13...
JAN
15...
15...
MAR
14...
14...
APR
17...
17...
JUN
04...
04...
26...
26...
AUG
14...
14...
U-235
2 SIGMA
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(75947)
U-235
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/L)
(75975)
U-238
2 SIGMA
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(04113)
U-238
SED,
SUSP,
TOTAL,
DRY WGT
(PCI/G)
(75940)
SED.
SUSP.
SIEVE
DIAM.
% FINER
THAN
.062 MM
(70331)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
UV
ABSORBANCE
254 NM,
WTR FLT
(UNITS
/CM)
(50624)
UV
ABSORBANCE
280 NM,
WTR FLT
(UNITS
/CM)
(61726)
NITROGEN,PAR
TICULTE
WAT FLT
SUSP
(MG/L
AS N)
(49570)
CARBON,
INORG +
ORGANIC
PARTIC.
TOTAL
(MG/L
AS C)
(00694)
CARBON,
INORGANIC,
PARTIC.
TOTAL
(MG/L
AS C)
(00688)
---
---
---
---
71
58
44
29
1450
955
.059pl
--
.043pl
--
.03
--
.9
--
<.1
--
---
---
---
---
41
42
35
32
1530
1400
.053
--
.036
--
.09
--
1.9
--
.4
--
---
---
---
---
43
43
97
125
3060
3950
.051
.051
.034
.034
.03
.03
.8
.8
.5
<.1
---
---
---
---
49
55
31
26
912
765
.057
--
.039
--
.03
--
.5
--
<.1
--
---
---
---
---
31
28
20
21
589
618
.054
--
.037
--
.03
--
.5
--
<.1
--
-----
-----
-----
-----
32
25
16
13
125
168
88
84
4290
5760
3640
3470
.055
-.058
.036
.037
-.040
.025
.05
-<.02
<.02
.9
-.7
.9
<.1
-<.1
<.1
.01
--
M
--
.05
--
.1
--
76
82
536
482
26600
23900
.060
--
.042
--
.20
--
2.0
--
.1
--
Remark codes used in this report:
< -- Less than
E -- Estimated value
M -- Presence verified, not quantified
S -- Most probable value
Value qualifier codes used in this report:
f -- Sample field preparation problem
l -- Sample lab preparation problem
n -- Below the NDV
p -- Value reported is preferred
r -- Value verified by rerun, same method
103
COLORADO RIVER MAIN STEM
09404200 COLORADO RIVER ABOVE DIAMOND CREEK NEAR PEACH SPRINGS, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Water-quality measurements in the following table were made as part of the National Stream-Quality Accounting Network. The following analyses are quality-assurance
samples processed during the 2002 sampling period and are defined in the introductory text section titled "Water-Quality Control Data".
Date
NOV
15...
AUG
14...
14...
14...
14...
14...
Date
NOV
15...
AUG
14...
14...
14...
14...
14...
Date
NOV
15...
AUG
14...
14...
14...
14...
14...
Date
NOV
15...
AUG
14...
14...
14...
14...
14...
Time
Sample
type
UV
ABSORBANCE
254 NM,
WTR FLT
(UNITS
/CM)
(50624)
UV
ABSORBANCE
280 NM,
WTR FLT
(UNITS
/CM)
(61726)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
SILICA,
DISSOLVED
(MG/L
AS
SIO2)
(00955)
NITROGEN,
AMMONIA
DISSOLVED
(MG/L
AS N)
(00608)
NITROGEN,
NO2+NO3
DISSOLVED
(MG/L
AS N)
(00631)
NITROGEN,
NITRITE
DISSOLVED
(MG/L
AS N)
(00613)
NITROGEN,PAR
TICULTE
WAT FLT
SUSP
(MG/L
AS N)
(49570)
ORTHOPHOSPHATE,
DISSOLVED
(MG/L
AS P)
(00671)
1213
2
<.004pl
<.004pl
E.01
<.008
<.09
<.13
<.015
<.013
<.002
<.02
<.007
0834
0835
0836
0837
0838
2
2
2
2
2
----<.004
----<.004
----<.01
----<.008
----<.09
----<.13
----<.015
----<.013
----<.002
----<.02
----<.007
CARBON,
INORG +
ORGANIC
PARTIC.
TOTAL
(MG/L
AS C)
(00694)
CARBON,
INORGANIC,
PARTIC.
TOTAL
(MG/L
AS C)
(00688)
CARBON,
ORGANIC
DISSOLVED
(MG/L
AS C)
(00681)
CARBON,
ORGANIC
PARTICULATE
TOTAL
(MG/L
AS C)
(00689)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
COBALT,
DISSOLVED
(UG/L
AS CO)
(01035)
<.1
<.1
E.2n
<.1
<1
<.05
E.1
<1
<.06
<7
<.04
<.8
<.02
----<.1
----<.1
----E.2n
----<.1
----<1
----<.05
----<.2
----<1
----<.06
----<7
----<.04
----<.8
----<.02
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
LITHIUM
DISSOLVED
(UG/L
AS LI)
(01130)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MOLYBDENUM,
DISSOLVED
(UG/L
AS MO)
(01060)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
STRONTIUM,
DISSOLVED
(UG/L
AS SR)
(01080)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
<.08
--
<.3
<.1
<.2
<.06
<.3
<1
<.08
<.04
<1
<1
<1
<1
--
----<.3
----<.1
----<.2
----<.06
----<.3
----<1
----<.08
----<.04
<.2
--
<10
----V1.7v
<.6
<.6
<.6
<.6
--
----<10
VANADIUM,
DISSOLVED
(UG/L
AS V)
(01085)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
<.2
<1
--
<.02
----<.2
----1v
<1
<1
<1
<1
--
----<.02
----.57v
URANIUM
NATURAL
DISSOLVED
(UG/L
AS U)
(22703)
Remark codes used in this report:
< -- Less than
E -- Estimated value
V -- Contamination
Value qualifier codes used in this report:
l -- Sample lab preparation problem
n -- Below the NDV
p -- Value reported is preferred
v -- Analyte detected in laboratory blank
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
104
COLORADO RIVER BASIN
09404208 DIAMOND CREEK NEAR PEACH SPRINGS, AZ
LOCATION.--Lat 35° 45'54", long 113° 22'03", sec. 32, T.28 N. , R.10 W. , unsurveyed, Mohave County, Hydrologic Unit 15010002, on the Hualapai Reservation, on the right
bank, 0. 25 mi upstream from mouth, and 20.4 mi north of Peach Springs by dirt road.
DRAINAGE AREA.--279. 5 mi2.
PERIOD OF RECORD.--May 1993 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 1,400 ft above sea level, from topographic map.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 10,500 ft3/s Aug. 29, 2000, gage height 15.32 ft. from floodmark; minimum daily discharge, 0.64 ft3/s,
Aug. 9, 1993.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 600 ft3/s and (or) maximum (*):
Date
July 23 ..........
Time
Discharge (ft3/s)
2130
*41
Gage height (ft)
*8.90
Minimum daily discharge, 1.2 ft3/s, July 9.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
2.7
2.6
2.4
2.1
1.9
2.9
2.9
2.9
2.9
3.3
3.2
3.1
2.9
3.6
3.3
4.0
4.0
4.0
4.0
4.0
4.8
4.8
4.8
4.8
4.8
4.2
4.3
4.3
4.3
4.3
3.9
3.9
3.7
3.7
3.7
2.2
2.3
2.3
2.2
2.1
1.6
1.7
1.8
1.8
1.9
1.3
1.4
1.5
1.5
1.5
1.5
1.5
1.5
1.4
1.5
1.8
1.8
1.8
1.8
1.8
6
7
8
9
10
1.8
2.4
2.7
2.5
2.5
3.3
3.2
3.2
3.1
3.2
3.1
3.1
3.1
3.1
3.2
4.3
4.3
4.3
4.3
4.4
4.8
4.8
4.8
4.8
4.8
4.3
4.0
4.1
4.0
4.0
3.9
3.8
3.6
3.7
3.8
1.9
1.8
1.7
1.8
2.0
1.9
2.0
1.9
1.9
2.1
1.4
1.3
1.3
1.2
1.4
1.5
1.5
1.5
1.5
1.5
1.9
3.6
2.7
2.5
3.4
11
12
13
14
15
2.5
2.5
2.6
2.6
2.6
3.1
3.1
3.1
3.2
3.1
3.1
3.1
3.1
3.1
3.1
3.8
4.0
4.3
4.1
4.0
4.8
4.8
4.6
4.3
4.2
3.9
3.9
3.7
3.9
4.1
3.9
3.8
3.7
3.5
3.4
2.1
2.1
1.9
1.9
1.9
2.1
2.0
2.0
1.9
2.1
1.4
1.5
1.4
1.3
1.3
1.5
1.5
1.5
1.6
1.6
3.7
3.0
2.9
2.6
2.5
16
17
18
19
20
2.7
2.6
2.7
2.7
2.7
2.9
2.9
2.9
2.9
3.1
3.1
3.1
3.1
3.2
3.3
4.0
4.2
4.3
4.4
4.5
4.3
4.4
4.6
4.6
4.5
4.2
4.3
3.9
3.6
3.3
3.6
3.3
3.3
3.3
3.3
1.9
1.9
1.9
1.8
1.7
2.0
1.9
1.9
2.0
1.8
1.4
e4.0
e1.5
e1.4
e1.4
1.6
1.7
1.7
1.7
1.6
2.4
2.5
2.6
2.6
2.7
21
22
23
24
25
2.8
2.8
2.8
2.9
2.9
3.1
3.2
3.3
3.3
3.7
3.3
3.1
3.1
3.1
3.1
4.5
4.5
4.4
4.5
4.5
4.5
4.5
4.5
4.5
4.5
3.1
3.1
3.2
3.3
3.4
3.2
3.0
2.8
2.5
2.3
2.0
2.0
2.0
2.0
2.0
1.8
1.8
1.7
1.7
1.5
e1.4
e1.4
3.6
2.3
1.7
1.6
1.7
1.7
1.7
1.7
2.6
2.6
2.6
2.5
2.4
26
27
28
29
30
31
2.9
2.9
2.9
2.9
2.9
2.9
3.5
3.6
3.5
3.4
3.3
---
3.1
3.3
3.5
3.5
3.7
3.9
4.5
4.5
4.6
4.8
4.8
4.8
4.5
4.5
4.4
-------
3.3
3.4
3.7
3.7
3.7
3.8
2.4
2.5
2.5
2.3
2.2
---
1.9
1.9
1.8
1.8
1.7
1.7
1.4
1.4
1.4
1.4
1.3
---
1.7
1.6
1.5
1.5
1.5
1.5
1.7
1.8
1.8
1.8
1.8
1.8
2.5
2.5
2.8
2.6
2.7
---
81.4
2.626
2.9
1.8
161
95.1
3.170
3.7
2.9
189
99.7
3.216
3.9
2.9
198
133.6
4.310
4.8
3.8
265
129.0
4.607
4.8
4.2
256
118.3
3.816
4.3
3.1
235
98.5
3.283
3.9
2.2
195
60.2
1.942
2.3
1.7
119
53.7
1.790
2.1
1.3
107
50.1
1.616
4.0
1.2
99
50.0
1.613
1.8
1.4
99
76.4
2.547
3.7
1.8
152
2.445
3.81
2000
1.79
2002
5.573
25.8
1999
1.09
1993
4.211
19.2
2000
1.61
2002
4.599
18.6
1999
2.26
1995
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
3.062
3.57
1999
2.63
2002
3.642
4.56
1999
3.05
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
3.958
4.79
1999
3.17
1995
4.463
5.34
1997
3.29
1995
4.453
5.01
2000
3.70
1995
FOR 2001 CALENDAR YEAR
1151.3
3.154
10
1.0
1.1
2280
4.6
3.1
1.6
5.110
11.3
1995
3.82
2002
3.786
4.51
1998
3.28
2002
2.853
3.56
1993
1.94
2002
FOR 2002 WATER YEAR
1046.0
2.866
Mar 11
Jul 8
Jul 7
4.8
1.2
1.4
2070
4.4
2.9
1.5
Jan 29
Jul 9
Jul 5
WATER YEARS 1993 - 2002
4.014
7.07
2.14
484
Aug 29
0.64 Aug 9
0.82 Jul 10
2910
4.8
3.3
2.0
1999
1993
2000
1993
1993
105
LITTLE COLORADO RIVER BASIN
09404222 SPENCER CREEK NEAR PEACH SPRINGS, AZ
LOCATION.--Lat 35° 48'03", long 113° 39'29", in NE1/4SW1/4NE1/4 sec. 22, T.13 W. , R.28 N. , Mohave County, Hydrologic Unit 15010005, on the Hualapai Reservation, on the
left bank, about 2 mi upstream from the mouth.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Mar. 1998 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 1,620 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges and days above 20 ft3/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,250 ft3/s, Aug. 30, 1999, gage height, 10.74 ft, from highwater mark; minimum daily discharge,0.80 ft3/s,
May 11, 2002.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 588 ft3/s July 16 at 2200, gage height, 7.15 ft from floodmark. Minimum daily discharge, 0.80 ft3/s, May 11.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
AUG
SEP
1
2
3
4
5
1.5
1.5
1.5
1.5
1.5
OCT
1.1
1.0
0.99
1.0
1.1
1.0
0.99
0.98
0.99
0.99
0.90
0.97
1.0
1.0
0.96
0.96
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.97
0.98
0.98
0.99
0.99
1.1
1.0
0.96
0.98
0.90
1.3
1.4
1.5
1.6
1.5
1.5
1.5
1.5
1.5
1.5
0.93
0.94
0.96
0.99
1.0
1.0
1.0
1.0
1.0
1.0
6
7
8
9
10
1.5
5.0
1.4
1.3
1.2
1.0
1.0
1.0
1.0
1.0
0.99
0.97
0.90
0.84
0.85
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.92
0.92
0.99
0.94
0.94
0.94
0.99
1.0
1.0
1.1
1.1
1.1
1.0
0.91
0.93
0.86
0.88
0.82
1.5
1.5
1.6
1.6
1.6
1.5
1.5
1.4
1.4
1.4
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.1
1.0
11
12
13
14
15
1.1
1.1
1.1
1.1
1.1
1.0
1.0
1.0
1.0
1.0
0.85
0.85
0.85
0.86
0.85
0.94
0.94
0.94
0.94
0.94
1.0
0.94
0.89
0.85
0.85
1.0
1.0
1.0
1.0
1.1
1.1
1.1
1.2
1.2
1.1
0.80
0.85
0.92
0.93
0.95
1.6
1.6
1.5
1.5
1.5
1.4
1.3
1.3
1.3
1.3
1.0
1.1
1.0
1.0
1.1
1.0
1.0
1.0
1.0
1.0
16
17
18
19
20
0.99
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.97
0.94
0.85
0.85
0.85
0.85
0.86
0.94
0.98
1.0
1.0
1.0
0.85
0.85
0.94
0.94
0.94
1.2
1.0
1.1
1.0
1.0
1.1
1.0
1.1
1.1
1.2
0.93
0.92
0.91
0.90
0.92
1.5
1.8
1.8
1.6
1.6
e7.3
e2.1
1.1
1.1
1.0
1.1
1.1
1.2
1.2
1.2
1.0
1.1
1.1
1.1
1.1
21
22
23
24
25
1.1
1.1
1.1
1.1
1.1
0.94
0.94
0.94
0.95
1.1
0.90
0.93
0.93
0.92
0.93
1.0
0.88
0.97
1.0
0.95
0.94
0.94
0.94
0.94
0.93
1.0
1.1
1.1
1.1
1.1
1.3
1.2
1.1
1.1
1.1
0.94
0.97
0.98
1.0
1.1
1.6
1.6
1.6
1.5
1.5
0.96
0.92
0.88
0.91
0.88
1.1
1.1
1.2
1.2
1.2
1.1
1.0
1.0
1.0
1.0
26
27
28
29
30
31
1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
0.99
1.0
1.0
---
0.93
0.94
0.94
0.94
0.90
0.86
0.94
0.94
0.94
0.96
0.98
0.98
0.85
0.89
0.94
-------
1.0
1.1
1.1
0.99
0.98
0.97
1.1
1.0
0.99
0.98
0.99
---
1.1
1.1
1.2
1.2
1.2
1.3
1.5
1.5
1.5
1.5
1.5
---
0.88
0.86
0.89
0.89
0.85
0.87
1.2
1.1
1.1
1.1
1.1
1.1
1.0
1.0
1.0
1.0
1.0
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
40.49
1.306
5.0
0.99
1.1
80
30.16
1.005
1.1
0.94
1.0
60
28.14
0.908
1.0
0.84
0.90
56
29.69
0.958
1.0
0.88
0.94
59
25.85
0.923
1.0
0.85
0.94
51
31.45
1.015
1.2
0.94
1.0
62
32.27
1.076
1.3
0.97
1.1
64
46.4
1.547
1.8
1.3
1.5
92
43.69
1.409
7.3
0.85
1.3
87
MIN 0.84
MIN 0.80
MED 1.7
MED 1.0
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 668.79
TOTAL 402.52
MEAN 1.832
MEAN 1.103
MAX 69
MAX 7.3
30.46
0.983
1.3
0.80
0.94
60
AC-FT 1330
AC-FT 798
JUL
33.32
1.075
1.2
0.93
1.1
66
30.6
1.020
1.1
1.0
1.0
61
106
COLORADO RIVER BASIN
09404343 TRUXTON WASH NEAR VALENTINE, AZ
LOCATION.--Lat 35° 23'03", long 113° 39'25", in SE1/4NE1/4NW1/4, sec. 15, T.23 N., R.13 W., Mohave County, Hydrologic Unit 15010007, on the Hualapai Reservation, just
southwest of Valentine, south of old Route 66, 29 mi east of Kingman and 20 mi west of Peach Springs.
DRAINAGE AREA.--380. 3 mi2.
PERIOD OF RECORD.--Mar. 1993 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,770 ft above sea level, from topographic map.
REMARKS.--Records poor. Numerous small stock ponds located upstream with a combined capacity of less than 1,500 acre ft. Several minor diversions.
EXTREMES OUTSIDE CURRENT PERIOD.--Maximum discharge July or Aug. 1904, 49,000 ft3/s estimated in Truxton Canyon approximately 12 mi upstream, see WSP 147.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 7,430 ft3/s, Sept. 11, 1999, gage height, 14.07 ft., from floodmark; minimum daily discharge, no flow for many
days.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 55 ft3/s, Sept. 8, gage height, 4.09 ft, from floodmark. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.1
e2.5
e0.00
e0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
e0.00
e0.00
e0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.7
e3.5
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
5.20
0.168
3.5
0.00
10
0.00
0.000
0.00
0.00
0.00
5.60
0.187
3.1
0.00
11
0.693
3.17
2000
0.000
2002
2.508
14.3
1999
0.015
2000
2.012
7.08
2001
0.000
2002
2.786
21.6
1999
0.006
2001
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.286
0.77
1994
0.000
2002
0.272
0.76
1996
0.000
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.361
0.81
1994
0.000
2002
1.109
7.09
1995
0.000
2002
1.482
11.1
1995
0.000
2002
FOR 2001 CALENDAR YEAR
272.12
0.746
136
0.00
0.00
540
0.10
0.00
0.00
2.076
16.1
1995
0.000
2002
0.429
1.26
1993
0.000
2002
0.367
1.12
1993
0.000
2002
FOR 2002 WATER YEAR
10.80
0.030
Aug 12
Apr 26
Jun 7
3.5
0.00
0.00
21
0.00
0.00
0.00
Jul 19
Oct 1
Oct 1
WATER YEARS 1993 - 2002
1.228
3.37
1995
0.030
2002
283
Mar 6 1995
0.00 Jun 13 2000
0.00 Jun 13 2000
889
0.90
0.17
0.00
107
VIRGIN RIVER BASIN
09413700 VIRGIN RIVER ABOVE THE NARROWS NEAR LITTLEFIELD, AZ
LOCATION.--Lat 36° 55'‘16", long 113° 49'52", in NE1/4SE1/4 sec. 29, T.41 N., R.14 W., Mohave County, Hydrologic Unit 15010010, on right bank, 50 ft east of edge of roadway
of I-15, 225 ft south of mile marker 15, 6.8 mi upstream from Littlefield, and 43 mi upstream from Lake Mead.
DRAINAGE AREA.--4,415 mi2, approximately.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--June 1998 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 2,000 ft above sea level, from topographic map.
REMARKS.--Records good except for estimated daily discharges, which are poor. See schematic diagram of Colorado River Basin.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Jan. 1, 1989, 61,000 ft3/s, on basis of slope-area measurement of peak flow at site about 1 mi downstream, owing to
failure of Quail Creek Dam.
EXTREMES FOR CURRENT YEAR.--Maximum discharge 1,220 ft3/s, Sept. 7, gage height, 9.78 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
1
2
3
4
5
37
33
28
30
32
58
62
68
59
73
107
101
107
96
104
111
100
136
97
95
e57
e77
e75
e81
e73
55
73
61
58
58
32
28
26
26
22
6
7
8
9
10
28
44
67
54
67
74
58
59
51
57
95
99
99
101
97
95
93
96
92
100
e74
e74
e75
e65
e59
78
63
52
46
53
11
12
13
14
15
34
41
51
47
62
57
83
52
69
79
107
108
105
105
111
87
89
99
93
72
e48
e46
e39
e44
e39
16
17
18
19
20
85
57
70
61
68
77
70
79
86
80
108
105
102
110
111
67
72
91
94
91
21
22
23
24
25
73
93
71
62
68
71
92
79
83
110
114
114
114
120
148
26
27
28
29
30
31
64
47
49
71
60
52
113
100
107
98
107
---
1706
55.03
93
28
3380
2311
77.03
113
51
4580
TOTAL
MEAN
MAX
MIN
AC-FT
MAY
JUN
JUL
AUG
SEP
40
28
28
12
13
3.5
0.94
0.05
6.0
6.2
0.42
0.35
0.76
1.2
2.2
5.0
0.58
1.1
1.7
4.3
0.75
0.23
1.9
0.00
0.00
17
21
31
27
31
11
18
15
8.8
12
7.7
4.2
3.1
0.11
1.0
0.18
0.14
0.76
0.03
0.19
4.6
0.69
1.4
0.21
0.33
0.18
311
186
284
98
46
40
45
52
42
31
27
21
23
22
8.5
14
8.1
12
9.4
0.85
0.77
1.2
0.98
0.69
0.00
0.59
0.02
0.07
0.00
0.25
0.00
0.02
0.00
0.13
92
106
91
63
51
e44
e47
e46
e54
e56
49
56
54
42
47
43
39
44
40
39
10
12
8.7
5.8
7.3
0.00
0.00
0.02
0.23
0.05
0.00
0.14
0.05
1.5
3.1
0.00
0.00
0.00
0.00
0.00
40
48
26
27
30
97
94
e74
e68
e67
39
59
70
51
43
49
45
39
32
50
30
31
37
34
31
7.2
5.3
16
7.7
5.5
0.00
0.36
0.56
1.3
1.9
2.3
5.1
1.9
4.6
82
0.00
0.00
0.00
0.00
0.00
24
22
16
23
15
151
151
157
164
183
151
e75
e75
e81
e79
e73
e69
40
41
43
-------
54
44
39
42
42
41
26
48
62
55
48
---
1.5
3.3
15
7.3
4.0
3.3
0.33
0.00
0.00
0.01
0.34
---
78
20
3.9
6.7
1.6
8.5
0.00
0.08
0.00
0.00
0.00
0.76
20
24
19
18
80
3645
117.6
183
95
7230
2722
87.81
136
67
5400
1559
55.68
81
39
3090
1547
49.90
78
32
3070
992
33.07
62
17
1970
357.7
11.54
40
1.5
709
42.39
1.413
7.7
0.00
84
226.30
7.300
82
0.00
449
21.15
0.682
5.0
0.00
42
1717.06
57.24
311
0.00
3410
17.15
49.3
1999
1.41
2002
59.85
153
1998
7.30
2002
42.37
81.5
1999
0.68
2002
114.3
376
1998
27.8
2001
---
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
92.48
145
1999
55.0
2002
117.9
212
1999
77.0
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
MAXIMUM PEAK FLOW
MAXIMUM PEAK STAGE
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
126.3
216
1999
85.2
2000
114.8
172
1999
87.8
2002
126.6
180
1999
55.7
2002
FOR 2001 CALENDAR YEAR
32879.93
90.08
359
0.00
0.00
65220
197
85
10
120.6
194
2000
49.9
2002
136.2
209
2001
33.1
2002
95.46
162
2001
11.5
2002
FOR 2002 WATER YEAR
16846.60
46.16
Mar 10
Jun 21
Jun 28
311
0.00
0.00
1220
9.78
33420
100
42
0.10
Sep 7
Jun 16
Aug 16
Sep 7
Sep 7
WATER YEARS 1998 - 2002
89.25
128
46.2
2600
0.00
0.00
61000
64660
203
73
5.1
Sep 12
Jun 21
Jun 28
Jan 1
1999
2002
1998
2001
2001
1989
108
VIRGIN RIVER BASIN
09413700 VIRGIN RIVER ABOVE THE NARROWS NEAR LITTLEFIELD, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--June 1998 to current year.
REMARKS.--In June 1998, station was established in cooperation with the Southern Nevada Water Authority to characterize the hydraulics and water quality of the Virgin
River Basin.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
OCT
01...
DEC
03...
APR
23...
SEP
23...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
WATER
(DEG C)
(00010)
Time
Sample
type
1000
ENVIRONMENTAL
37
710
8.8
103
8.5
3230
19.0
0900
ENVIRONMENTAL
114
707
11.3
141
8.3
2790
22.0
0830
ENVIRONMENTAL
38
710
9.3
98
8.3
3470
14.0
0930
ENVIRONMENTAL
18
709
8.6
98
8.4
3460
17.5
109
VIRGIN RIVER BASIN
09415000 VIRGIN RIVER AT LITTLEFIELD, AZ
LOCATION.--Lat 36° 53'30", long 113° 55'25", in SW1/4 SW1/4, sec. 4, T.40 N., R.15 W., Mohave County, Hydrologic Unit 15010010, on right bank, 0.5 mi downstream from
Beaver Dam Wash, 0.4 mi upstream from Littlefield, and 36 mi upstream from Lake Mead.
DRAINAGE AREA.--5,090 mi2, approximately.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--October 1929 to current year.
REVISED RECORDS.--WSP 959: 1932. WSP 979: 1930-31, 1933-37. WSP 1313: 1940 (M).
GAGE.--Water-stage recorder. Datum of gage is 1,763.68 ft above sea level. Prior to May 28, 1933, nonrecording gage at site 300 ft upstream, and May 28, 1933, to
Nov. 7, 1939, at same site, both at datum 2.53 ft higher. Nov. 8, 1939, to Mar. 31, 1942, nonrecording gage at same site at datum 2.00 ft higher. Apr. 1, 1942, to
Sept. 30, 1970, water-stage recorder at same site at same datum. Oct. 1, 1970, to Aug. 7, 1979, at site 300 ft upstream at same datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. See schematic diagram of Colorado River Basin.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 61,000 ft3/s, January 1, 1989, gage height, 22.37 ft, due to failure of Quail Creek Dam; minimum daily, 40 ,ft3/s
August 6, 1966.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,000 ft3/s and (or) maximum (*):
Date
Time
Sept. 7...........
Discharge (ft3/s) Gage height (ft)
1130
*1,700
*6.64
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
99
96
88
93
95
113
109
119
104
122
161
151
157
147
155
160
142
184
142
141
115
134
132
138
127
101
129
108
104
100
107
107
109
109
101
107
87
92
74
73
57
53
52
56
60
52
54
53
51
56
61
54
54
53
56
52
53
54
50
51
6
7
8
9
10
89
109
138
123
138
126
107
107
99
100
143
147
144
149
144
137
133
138
135
147
128
128
130
119
114
126
136
112
108
107
96
95
105
101
101
69
76
76
66
68
62
58
52
50
49
52
52
54
53
53
59
51
51
50
50
52
538
332
470
188
11
12
13
14
15
107
106
119
119
123
105
132
136
118
128
155
161
154
156
171
128
129
144
136
137
104
101
94
97
92
100
92
97
102
99
102
98
88
89
86
66
69
67
70
70
51
50
51
52
51
54
54
55
53
53
48
47
47
47
47
248
183
175
129
107
16
17
18
19
20
148
112
121
115
115
132
117
127
137
137
168
160
157
163
168
131
140
132
130
133
97
100
99
106
109
100
115
115
102
105
106
106
108
104
100
67
69
63
54
58
50
49
50
50
51
54
55
56
57
58
46
47
46
47
47
95
102
81
74
80
21
22
23
24
25
e120
139
137
119
124
118
143
125
131
163
174
174
178
182
206
139
138
134
128
127
108
103
94
95
93
106
103
97
98
121
97
92
93
92
85
60
59
71
63
61
49
51
52
53
54
59
61
59
61
144
48
48
48
48
47
70
71
61
69
60
26
27
28
29
30
31
117
99
95
127
116
106
166
151
156
149
162
---
209
209
212
217
234
211
135
132
138
136
130
126
89
91
94
-------
137
118
108
114
117
115
80
108
123
124
115
---
55
54
69
61
57
55
51
49
49
50
50
---
186
91
62
60
56
62
48
49
49
49
50
51
61
71
65
63
133
---
3552
114.6
148
88
116
7050
3839
128.0
166
99
127
7610
5317
171.5
234
143
161
10550
4262
137.5
184
126
136
8450
3031
108.2
138
89
103
6010
3392
109.4
137
92
107
6730
3027
100.9
124
80
101
6000
2106
67.94
107
54
67
4180
1562
52.07
62
49
51
3100
1980
63.87
186
51
55
3930
1543
49.77
61
46
48
3060
3838
127.9
538
50
72
7610
140.4
1119
1983
46.8
1964
107.7
381
1932
51.6
1965
174.4
976
1932
49.8
2002
152.9
737
1939
53.3
1964
TOTAL
MEAN
MAX
MIN
MED
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1930 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
148.3
602
1947
53.4
1965
191.1
552
1947
101
1991
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
MAXIMUM PEAK FLOW
MAXIMUM PEAK STAGE
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
223.5
1247
1967
111
1964
235.4
775
1969
108
1964
317.1
2330
1980
108
2002
FOR 2001 CALENDAR YEAR
52201
143.0
331
43
46
103500
240
141
68
362.4
1805
1995
85.4
1977
402.5
1385
1969
61.6
1934
417.0
2122
1941
49.9
1990
FOR 2002 WATER YEAR
37449
102.6
Apr 29
Jul 24
Jul 23
538
46
47
1700
6.64
74280
155
101
51
Sep 7
Aug 16
Aug 12
Sep 7
Sep 7
WATER YEARS 1930 - 2002
239.0
697
100
17000
40
41
61000
22.37
173200
419
147
62
Mar
Aug
Aug
Jan
Jan
3
6
3
1
1
1983
1991
1938
1966
1966
1989
1989
110
VIRGIN RIVER BASIN
09415000 VIRGIN RIVER AT LITTLEFIELD, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1948 to current year.
PERIOD OF DAILY RECORD.-CHEMICAL ANALYSES: July 1949 to September 1969.
SPECIFIC CONDUCTANCE: October 1947 to March 1988.
WATER TEMPERATURE: October 1947 to March 1988.
SEDIMENT DATA: October 1947 to September 1968, October 1992 to September 1995.
REMARKS.--Data was collected in cooperation with the Southern Nevada Water Authority to characterize the hydraulics and water quality of the Virgin River Basin and to
establish information on chemical loading into Lake Mead. Streamflow is not completely homogenous chemically from bank to bank. Flow adjacent to north (right) bank is
generally more dilute than average, particularly at times of low streamflow; monthly data collected during June 1975–September 1976 indicate that specific conductance
off north bank was 93 to 100 percent of streamwide average (range of discharge, 60–230 ft3/s). Water temperature characteristically shows little or no variation from bank
to bank. Detailed sampling information for period since June 1975 is available from U.S. Geological Survey, Carson City, NV.
EXTREMES MEASURED FOR PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Maximum, 4,650 microsiemens/cm, Aug. 21, 1966; minimum, 615 microsiemens/cm, May 27, 28, 30, 31, 1983.
WATER TEMPERATURE: Maximum, 33.5° C, July 7, 1953; minimum, 2.0° C Jan. 4, 1949; January 4, 1950; Jan. 4, 5, 1971.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
Sample
type
Time
1015
ENVIRONMENTAL
163
1000
ENVIRONMENTAL
92
0845
ENVIRONMENTAL
0930
ENVIRONMENTAL
TURBIDITY LAB
HACH
2100AN
(NTU)
(99872)
UV
ABSORBANCE
254 NM,
WTR FLT
(UNITS
/CM)
(50624)
63
UV
ABSORBANCE
280 NM,
WTR FLT
(UNITS
/CM)
(61726)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
TEMPERATURE
WATER
(DEG C)
(00010)
.032
.022
714
10.3
101
7.8
2880
11.2
246
9.3
.026
.020
717
8.5
88
7.8
3200
13.5
283
67
5.1
.009
.006
709
9.3
115
7.8
3140
21.5
336
50
2.5
.008
.006
709
8.4
103
7.8
3130
21.4
353
ALKALINITY
WAT.DIS
FET
LAB
CACO3
(MG/L)
(29801)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SILICA,
DISSOLVED
(MG/L
AS
SIO2)
(00955)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,
AMMONIA
DISSOLVED
(MG/L
AS N)
(00608)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
75.0
22.9
257
273
260
317
354
.8
18.4
792
2050
1940
E.03
86.7
23.8
269
299
287
350
394
.9
17.1
979
2410
2240
.05
101
25.9
248
273
283
345
339
1.0
16.6
989
2350
2230
.06
101
25.2
247
245
260
307
352
1.0
20.8
1000
2430
2260
<.04
NITROGEN,
NO2+NO3
DISSOLVED
(MG/L
AS N)
(00631)
NITROGEN,
NITRITE
DISSOLVED
(MG/L
AS N)
(00613)
NITROGEN,PAR
TICULTE
WAT FLT
SUSP
(MG/L
AS N)
(49570)
PHOSPHORUS
DISSOLVED
(MG/L
AS P)
(00666)
1.08
E.006
.18
NITROGEN,AMMONIA +
ORGANIC
DIS.
(MG/L
AS N)
(00623)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
E.09
.47
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
E.04
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
ORTHOPHOSPHATE,
DISSOLVED
(MG/L
AS P)
(00671)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
CARBON,
INORG +
ORGANIC
PARTIC.
TOTAL
(MG/L
AS C)
(00694)
CARBON,
INORGANIC,
PARTIC.
TOTAL
(MG/L
AS C)
(00688)
CARBON,
ORGANIC
DISSOLVED
(MG/L
AS C)
(00681)
CARBON,
ORGANIC
PARTICULATE
TOTAL
(MG/L
AS C)
(00689)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
.04
.21
6.4
2.4
1.5
4.0
130
.12
.21
.76
E.007
.04
.11
.11
.15
1.1
<.1
1.3
1.1
79
<.10
.31
E.03
<.008
.27
<.06
<.02
E.03
2.4
<.1
.7
2.4
120
<.10
.10
.13
<.008
.04
<.06
<.02
<.06
.4
<.1
.7
.4
42
111
VIRGIN RIVER BASIN
09415000 VIRGIN RIVER AT LITTLEFIELD, AZ–CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
FECAL
STREP,
KF STRP
MF,
WATER
(COL/
100 ML)
(31673)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
191
847
7.5
756
<10
303
1.1
3170
1.5
<.07
<.16
<.25
<.002
20
220
9.0
959
<10
427
<.7
3860
4.1
<.07
<.16
<.25
<.006
43
128
7.5
911
<30
421
2.8
3720
2.0
<.07
<.16
<.25
<.006
96
289
8.0
841
<30
413
2.8
3740
2.5
<.07
<.16
<.25
<.006
3HYDRXY
CARBOFURAN
WAT,FLT
GF 0.7U
REC
(UG/L)
(49308)
ACETOCHLOR,
WATER
FLTRD
REC
(UG/L)
(49260)
ACIFLUORFEN
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49315)
ALACHLOR,
WATER,
DISS,
REC,
(UG/L)
(46342)
ALDICARB
SULFONE
WAT,FLT
GF 0.7U
REC
(UG/L)
(49313)
BDMC,
SURROG,
WATER,
UNFLTRD
REC
PERCENT
(99835)
BENFLURALIN
WAT FLD
0.7 U
GF, REC
(UG/L)
(82673)
BENTAZON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38711)
BROMACIL,
WATER,
DISS,
REC
(UG/L)
(04029)
LITHIUM
DISSOLVED
(UG/L
AS LI)
(01130)
ALDICARB SULFOXIDE,
WAT,FLT
GF 0.7U
REC
(UG/L)
(49314)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
ALDICARB,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49312)
STRONTIUM,
DISSOLVED
(UG/L
AS SR)
(01080)
VANADIUM,
DISSOLVED
(UG/L
AS V)
(01085)
ALPHA
BHC
DISSOLVED
(UG/L)
(34253)
ATRAZINE,
WATER,
DISS,
REC
(UG/L)
(39632)
2,4,5-T
DISSOLVED
(UG/L)
(39742)
a
2,4-D,
DISSOLVED
(UG/L)
(39732)
2,4-DB
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38746)
2,6-DIETHYL
ANILINE
WAT FLT
0.7 U
GF, REC
(UG/L)
(82660)
<.11
<.004
<.05
<.002
<.20
<.27
<.21
<.005
<.007
91.4
<.010
<.05
<.14
<.11
<.006
<.05
<.004
<.20
<.27
<.21
<.005
<.007
95.0
<.010
<.05
<.10
<.11
<.006
<.05
<.004
<.20
<.27
<.21
<.005
<.007
78.1
<.010
<.05
<.09
<.11
<.006
<.05
<.004
<.20
<.27
<.21
<.005
<.007
73.7
<.010
<.05
<.09
BROMOXYNIL
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49311)
BUTYLATE,
WATER,
DISS,
REC
(UG/L)
(04028)
CARBARYL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49310)
CARBARYL
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82680)
CHLOROTHALONIL,
WAT,FLT
GF 0.7U
REC
(UG/L)
(49306)
CHLORPYRIFOS
DISSOLVED
(UG/L)
(38933)
<.07
<.002
<.080
<.041
<.15
<.020
<.21
<.25
<.005
<.42
<.018
<.07
<.003
<.07
<.002
<.080
<.041
<.15
<.020
<.21
<.25
<.005
<.42
<.018
<.16
<.003
<.07
<.002
<.080
<.041
<.15
<.020
<.21
<.25
<.005
<.42
<.018
<.07
<.003
<.07
<.002
<.080
<.041
<.15
<.020
<.21
<.25
<.005
<.42
<.018
<.07
<.003
DIAZINON,
DISSOLVED
(UG/L)
(39572)
DICAMBA
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38442)
DEETHYL
ATRAZINE,
WATER,
DISS,
REC
(UG/L)
(04040)
<.006
a
DIAZINON
D10 SRG
WAT FLT
0.7 U
GF, REC
PERCENT
(91063)
DICHLOBENIL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49303)
CARBOFURAN
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82674)
DICHLOR
PROP,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49302)
CHLORAMBEN,
METHYL
ESTER
WATER
FLTRD
(UG/L)
(61188)
DIELDRIN
DISSOLVED
(UG/L)
(39381)
DINOSEB
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49301)
DISULFOTON
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82677)
CLOPYRALID,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49305)
DIURON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49300)
CYANAZINE,
WATER,
DISS,
REC
(UG/L)
(04041)
DNOC
WAT,FLT
GF 0.7U
REC
(UG/L)
(49299)
DACTHAL
MONOACID,
WAT,FLT
GF 0.7U
REC
(UG/L)
(49304)
DCPA
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82682)
EPTC
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82668)
ETHALFLURALIN
WAT FLT
0.7 U
GF, REC
(UG/L)
(82663)
.008
<.11
<.09
<.12
<.005
<.09
<.02
<.12
<.25
<.002
<.009
<.006
119
.009
<.11
<.09
<.12
<.005
<.09
<.02
<.12
<.25
<.002
<.009
<.006
103
E.003
<.11
<.09
<.12
<.005
<.14
<.02
<.12
<.25
<.002
<.009
<.006
126
<.005
<.11
<.09
<.12
<.005
<.15
<.02
<.12
<.25
<.002
<.009
LINDANE
DISSOLVED
(UG/L)
(39341)
LINURON
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38478)
LINURON
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82666)
MALATHION,
DISSOLVED
(UG/L)
(39532)
MCPA,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38482)
MCPB,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38487)
METHIOCARB,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38501)
METHOMYL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49296)
ETHOPROP
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82672)
95.7
CARBOFURAN,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49309)
FENURON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49297)
FLUOMETURON
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38811)
FONOFOS
WATER
DISS
REC
(UG/L)
(04095)
a
HCH
ALPHA
D6 SRG
WAT FLT
0.7 U
GF, REC
PERCENT
(91065)
<.005
<.17
<.06
<.003
87.2
<.004
<.06
<.035
<.027
<.33
<.26
<.07
<.22
<.005
<.07
<.06
<.003
95.5
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.38
<.005
<.07
<.06
<.003
95.3
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.22
<.005
<.07
<.06
<.003
95.9
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.22
112
VIRGIN RIVER BASIN
09415000 VIRGIN RIVER AT LITTLEFIELD, AZ–CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
Date
NOV
27...
FEB
27...
MAY
20...
AUG
27...
METHYL
AZINPHOS
WAT FLT
0.7 U
GF, REC
(UG/L)
(82686)
METHYL
PARATHION
WAT FLT
0.7 U
GF, REC
(UG/L)
(82667)
METOLACHLOR
WATER
DISSOLV
(UG/L)
(39415)
METRIBUZIN
SENCOR
WATER
DISSOLV
(UG/L)
(82630)
MOLINATE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82671)
NAPROPAMIDE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82684)
NEBURON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49294)
NORFLUR
AZON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49293)
ORYZALIN,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49292)
P,P'
DDE
DISSOLV
(UG/L)
(34653)
PARATHION,
DISSOLVED
(UG/L)
(39542)
PEBULATE
WATER
FILTRD
0.7 U
GF, REC
(UG/L)
(82669)
<.050
<.006
<.013
<.006
<.002
<.007
<.07
<.04
<.28
<.16
<.003
<.007
<.002
<.050
<.006
<.013
<.006
<.002
<.007
<.07
<.04
<.050
<.006
<.013
<.006
<.002
<.007
<.07
<.04
<.28
<.16
<.003
<.010
<.004
<.28
<.16
<.003
<.010
<.004
<.050
<.006
<.013
<.006
<.002
<.007
<.07
<.04
<.28
<.16
<.003
<.010
<.004
PENDIMETHALIN
WAT FLT
0.7 U
GF, REC
(UG/L)
(82683)
PERMETHRIN
CIS
WAT FLT
0.7 U
GF, REC
(UG/L)
(82687)
PHORATE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82664)
PICLORAM,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49291)
PROMETON,
WATER,
DISS,
REC
(UG/L)
(04037)
PRONAMIDE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82676)
PROPACHLOR,
WATER,
DISS,
REC
(UG/L)
(04024)
PROPANIL
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82679)
PROPOXUR,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38538)
SILVEX,
DISSOLVED
(UG/L)
(39762)
SIMAZINE,
WATER,
DISS,
REC
(UG/L)
(04035)
<.010
<.006
<.011
<.09
M
<.004
<.010
<.011
<.02
<.22
<.12
<.03
<.011
<.022
<.006
<.011
<.09
<.01
<.004
<.010
<.011
<.02
<.22
<.23
<.03
<.005
<.022
<.006
<.011
<.09
<.01
<.004
<.010
<.011
<.02
<.22
<.12
<.03
<.005
<.022
<.006
<.011
<.09
<.01
<.004
<.010
<.011
<.02
<.22
<.12
<.03
<.005
TEBUTHIURON
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82670)
TERBACIL
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82665)
TERBUFOS
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82675)
THIOBENCARB
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82681)
TRIALLATE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82678)
TRICLOPYR,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49235)
TRIFLURALIN
WAT FLT
0.7 U
GF, REC
(UG/L)
(82661)
<.02
<.034
<.02
<.005
<.002
<.07
<.009
<.02
<.034
<.02
<.005
<.002
<.07
<.009
63
23
15.6
<.02
<.034
<.02
<.005
<.002
<.07
<.009
62
48
11.2
<.02
<.034
<.02
<.005
<.002
<.07
<.009
23
21
3.1
PROPARGITE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82685)
SED.
SUSP.
SEDISIEVE
MENT,
DIAM.
SUS% FINER
PENDED
THAN
(MG/L) .062 MM
(80154) (70331)
--
--
Remark Codes Used in This report:
< -- Less than
E -- Estimated (see introductory text section titled "Long-Term Method
Detection Levels and Laboratory Reporting Levels").
M -- Presence verified, not quantified
a
Listed values are recovery percentages for the indicated compounds. These
compounds are added to the sample to determine the relative recovery of
other organic compounds that are detected using the same analytical methods.
OXAMYL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38866)
PROPHAM,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49236)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
--
113
COLORADO RIVER MAIN STEM
09421000 LAKE MEAD AT HOOVER DAM, AZ-NV
LOCATION--Lat 36° 00'58", long 114° 44'13", in NE 1/4SW 1/4sec. 3, T.30 N., R.23 W., Gila and Salt River meridian, Mohave-Clark Counties, Hydrologic Unit 15010005, in
center of Hoover Dam on Colorado River.
DRAINAGE AREA.--171,700 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing (previously considered part of the
Missouri River basin).
RESERVOIR-CONTENTS RECORDS
PERIOD OF RECORD.--Contents: February 1935 to current year. Diversions (monthly totals only): to Boulder City area, since October 1935; to Henderson and Las Vegas areas,
since April 1942; combined diversions since October 1968. Prior to 1946 published as "at Boulder Dam."
REVISED RECORDS.--WSP 899: 1935-39.
GAGE.--Water-stage indicator read once daily at midnight, with supplementary water-stage recorder. Datum of gage is 0.00 ft to Local Powerhouse datum.
REMARKS.--Reservoir is formed by concrete arch-gravity dam; storage began Feb. 1, 1935; dam completed Mar. 1, 1936. Total capacity (based on 1963–64 resurvey by Coast
and Geodetic Survey; capacity table put into use Apr. 1, 1967), 29,755,000 acre-ft, consisting of the following: Dead storage, 2,378,000 acre-ft below gage height 895.0-ft
gate sills in outlet towers; usable contents, 26,159,000 acre-ft between gage heights 895.0 ft and 1,221.4 ft (top of automatic spillway gates in raised position);
uncontrolled storage, 1,218,000 acre-ft between gage heights 1,221.4 ft and 1,229.0 ft (maximum water surface). Reservoir is used to store water for flood control,
irrigation, municipal water supply, power development, and recreation. Figures given herein represent usable contents.
DIVERSIONS FROM LAKE MEAD.--Diversions to Boulder City area at dam; diversions to Henderson and Las Vegas areas from intakes 6 mi upstream. Diversions measured
by Venturi meters. Water used for municipal and industrial purposes.
COOPERATION.--Records of gage height and contents furnished by Bureau of Reclamation. Records of diversions from Lake Mead furnished by Bureau of Reclamation and
Colorado River Commission of Nevada.
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 27,790,000 acre-ft, July 29, 30, 1941 (on basis of original bathymetry), gage height, 1,220.45 ft; maximum gage
height, 1,225.85 ft, July 24, 1983 (equivalent to 26,868,000 acre-ft on basis of resurveyed bathymetry of 1963-64); minimum contents (since 1940), 10,695,000 acre-ft,
Apr. 26, 1956, gage height, 1,083.21 ft.
EXTREMES FOR CURRENT YEAR.--Maximum contents, 19,923,000 acre-ft, Nov. 13, gage height 1,178.34 ft; minimum, 17,209,000 acre-ft, Sept. 30, gage height, 1,155.42 ft.
RESERVOIR STORAGE, IN THOUSANDS OF ACRE FEET, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
19862
19857
19840
19837
19832
19881
19883
19890
19896
19895
19777
19777
19777
19785
19784
19786
19792
19805
19805
19818
19873
19875
19879
19875
19861
19670
19656
19647
19627
19609
19089
19066
19042
19027
19012
18529
18513
18492
18478
18466
17909
17909
17897
17889
17868
17511
17502
17496
17505
17512
17338
17338
17338
17344
17344
17200
17204
17195
17172
17175
6
7
8
9
10
19837
19841
19843
19844
19839
19896
19896
19885
19892
19902
19781
19777
19781
19795
19798
19826
19833
19835
19832
19841
19856
19850
19852
19848
19839
19589
19558
19549
19546
19540
19005
18994
18981
18968
18944
18449
18426
18406
18380
18356
17849
17830
17833
17837
17828
17518
17517
17525
17515
17486
17337
17335
17328
17318
17320
17171
17166
17166
17165
17161
11
12
13
14
15
19845
19837
19850
19857
19856
19912
19908
19923
19921
19906
19793
19789
19788
19782
19785
19843
19844
19852
19857
19853
19833
19832
19822
19823
19819
19511
19493
19467
19440
19420
18923
18900
18881
18867
18850
18355
18341
18321
18295
18272
17816
17803
17789
17771
17771
17484
17474
17474
17469
17465
17319
17313
17304
17295
17288
17150
17145
17147
17147
17138
16
17
18
19
20
19858
19852
19851
19854
19866
19891
19882
19874
19860
19845
19794
19786
19789
19781
19776
19853
19857
19857
19860
19864
19822
19816
19820
19812
19805
19395
19381
19350
19335
19307
18827
18806
18795
18773
18768
18248
18228
18214
18197
18181
17765
17744
17722
17708
17696
17460
17452
17453
17451
17456
17283
17290
17285
17285
17281
17130
17134
17139
17135
17130
21
22
23
24
25
19869
19873
19882
19877
19879
19839
19851
19847
19837
19832
19785
19789
19792
19795
19795
19864
19865
19868
19869
19866
19786
19776
19776
19772
19751
19283
19259
19249
19236
19216
18752
18730
18701
18678
18652
18149
18119
18091
18068
18048
17689
17684
17677
17665
17640
17461
17454
17443
17432
17408
17277
17266
17259
17260
17263
17134
17130
17125
17122
17108
26
27
28
29
30
31
19879
19883
19888
19888
19891
19882
19822
19802
19789
19778
19776
---
19797
19792
19782
19785
19792
19795
19875
19875
19877
19874
19869
19870
19721
19695
19682
-------
19192
19173
19150
19128
19125
19118
18623
18614
18593
18567
18539
---
18035
18018
17988
17958
17935
17915
17614
17583
17563
17547
17533
---
17397
17399
17399
17385
17368
17343
17246
17238
17223
17213
17203
17209
17108
17104
17107
17100
17093
---
MAX
MIN
*
#
##
19891
19832
1178.03
+9000
43273
19923
19776
1177.22
-106000
32078
19798
19776
1177.37
+19000
27067
19877
19786
1177.94
+75000
26517
19879
19682
1176.50
-188000
25646
19670
19118
1172.11
-564000
34003
19089
18539
1167.49
-579000
41265
18529
17915
1162.39
-624000
47726
17909
17533
1159.19
-382000
46452
17525
17343
1157.57
-190000
49765
17344
17203
1156.42
-134000
49519
17204
17093
1155.42
-116000
42181
CAL YR 2001
WTR YR 2002
*
#
##
MAX 22544
MAX 19923
MIN 19776
MIN 17093
# -2563000
# -2780000
Gage height, in feet, at end of month.
Change in contents, in acre-feet.
Diversions, in acre-feet.
## 466603
## 465492
114
COLORADO RIVER MAIN STEM
09421500 COLORADO RIVER BELOW HOOVER DAM, AZ-NV
LOCATION.--Lat 36° 00'55", long 114° 44'16", in NE 1/4 SW 1/4 sec. 3, T.30 N., R.23 W., Gila and Salt River meridian, or SW1/4 NE1/4 sec. 29, T.22 S., R.65 E., Mount Diablo
meridian, Mohave-Clark Counties, Hydrologic Unit 15030101, in powerhouse at downstream side of Hoover Dam.
DRAINAGE AREA.--171,700 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing (previously considered part of the
Missouri River basin).
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--October 1933 to current year (prior to April 1934, monthly discharge only, published in WSP 1313). Published as "near Willow Beach" 1933–39 and as
"below Boulder Dam" 1939–45.
GAGE.--Acoustical velocity meters on each turbine in Hoover Dam. Prior to Nov. 1, 1939, water-stage recorder at site 9 mi downstream at datum 594.8 ft above sea level.
Nov. 1, 1939, to June 30, 1958, water-stage recorder at site 0.8 mi downstream at datum 600.35 ft above sea level. July 1, 1958, to Nov. 7, 1979, totalizing flowmeter on
each turbine.
REMARKS.--Flow regulated by Hoover Dam on Lake Mead since Feb. 1, 1935. Many diversions above station for irrigation, industrial, and municipal use. See schematic
diagram of Colorado River Basin.
COOPERATION.--Records furnished by Bureau of Reclamation.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 50,800 ft3/s, July 29, 1983, no flow at Hoover Dam part of Feb. 10, 1935; minimum daily, 152 ft3/s,
Feb. 10, 1935.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
10400
10400
11400
8160
13500
10700
8120
5940
7660
9540
10000
10000
9130
11300
11300
12500
9520
10100
11600
8730
13400
10900
11300
13800
15700
16300
16000
14100
20500
18500
20300
20100
19700
18800
17500
16400
18500
19300
15900
16100
9720
7390
11900
17500
21000
22200
18000
14000
8520
11500
17500
14700
11600
8280
14200
17800
13100
16700
15200
9900
6
7
8
9
10
6830
6790
6880
9220
8220
10900
9810
12200
8000
4530
15000
16100
9910
8810
10400
10000
9990
10300
10800
11200
11900
14000
12400
9640
14800
17500
19100
19200
13600
14300
13200
13100
17900
16500
18600
17900
21100
18500
22300
19700
20000
19400
11100
11200
14400
9000
12500
12000
18400
21100
15900
14500
16400
17300
15700
11300
7400
7300
12000
13100
11
12
13
14
15
8400
8080
4090
6100
9000
5920
8080
4500
9930
16700
14100
12600
13800
13800
11500
12500
10800
11600
10800
12100
12400
11000
12700
12200
11800
20100
19200
20300
22100
20200
20900
22500
19200
15300
18400
10700
16900
20800
20800
20100
16100
18700
19400
20700
13100
17900
20800
15100
14300
13800
12400
17000
17500
18700
15900
14400
13900
14500
11500
12800
16
17
18
19
20
9130
9460
10000
8450
4840
17000
13200
15300
14100
17400
11500
13400
13300
12900
14600
12000
11800
12900
11100
13800
11800
12700
9060
13600
15600
20600
19800
20900
19400
22000
17300
18800
19300
16600
12600
21800
19400
17500
15600
18800
12500
23400
19900
20500
17800
17200
15300
17400
16900
11800
15700
9270
13700
14200
14600
12400
8320
7440
10600
10200
21
22
23
24
25
6250
7450
7460
7660
8070
13200
7080
8560
11800
13300
13100
11200
12200
10900
11200
10700
11100
11100
12000
13300
19100
19000
10000
13300
20400
21900
20500
16700
17000
20600
17100
22400
22900
20400
23600
21600
24200
23100
22100
18400
14400
14000
15000
18400
24000
7930
17300
20000
19700
23400
14000
17400
16600
13100
12200
7480
8130
11600
9660
12800
26
27
28
29
30
31
9840
7530
7230
9720
9750
9650
14100
18400
14800
14400
11100
---
12600
15200
15100
12600
12800
11600
9580
10300
11900
13100
14400
12300
22300
22800
17900
-------
20100
19800
21000
19200
15400
12200
22300
12200
21200
21200
20700
---
14000
16300
23900
22900
18600
16800
23800
25400
22700
20700
18000
---
20000
12500
12000
21300
21700
24100
20800
18500
19800
18700
19200
11100
9400
7070
8390
9010
11500
---
259960
8386
13500
4090
515600
336270
11210
18400
4500
667000
381950
12320
16100
8810
757600
353920
11420
14400
8730
702000
395500
14120
22800
9060
784500
578100
18650
22100
12200
1147000
560600
18690
23600
12200
1112000
590000
19030
24200
10700
1170000
522110
17400
25400
7390
1036000
507650
16380
24100
7930
1007000
476450
15370
20800
8280
945000
334900
11160
17800
7070
664300
15660
41870
1983
10880
1937
15180
39390
1983
9961
1936
13330
36750
1983
6619
1982
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
11720
34250
1984
3109
1935
11620
30530
1942
3519
1935
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
12030
33670
1942
4444
1935
12300
32700
1942
3540
1979
12690
30680
1984
1106
1993
FOR 2001 CALENDAR YEAR
5147040
14100
27100
4090
6440
10210000
20800
13900
8070
14890
28790
1984
5474
1993
16070
26290
1984
7297
1935
16310
33330
1986
8898
1937
FOR 2002 WATER YEAR
5297410
14510
Jul 13
Oct 13
Jan 19
25400
4090
7170
10510000
20800
14000
8400
Jun 27
Oct 13
Oct 19
15770
34890
1984
9786
1940
WATER YEARS 1935 - 2002
13970
30590
7674
50800
152
927
10120000
21700
13400
6610
1984
1935
Jul 29 1983
Feb 10 1935
Feb 25 1980
115
COLORADO RIVER MAIN STEM
09421500 COLORADO RIVER BELOW HOOVER DAM, AZ-NV—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1940 to current year.
PERIOD OF DAILY RECORD.-CHEMICAL ANALYSES: Oct. 1939 to Sept. 1944, Oct. 1950 to Sept. 1957, Oct. 1967 to Mar. 1970.
SPECIFIC CONDUCTANCE: Oct. 1939 to July 1957, Oct. 1977 to Sept. 1987.
WATER TEMPERATURE: Oct. 1941 to July 1957, Oct. 1977 to Sept. 1987.
REMARKS.--Samples collected at gaging station 0.3 mi downstream from Hoover Dam. Unpublished chemical analyses for period Oct. 1939 to Sept. 1940 available from the
U.S. Geological Survey in Tucson, AZ. Quality-assurance samples are defined in the introductory text section titled "Water Quality-Control Data."
COOPERATION.--Instantaneous-discharge data provided by Bureau of Reclamation, Boulder City, NV.
EXTREMES MEASURED FOR PERIOD OF DAILY RECORD SINCE OCTOBER 1977.-SPECIFIC CONDUCTANCE: Maximum, 1,180 microsiemens/cm, June 10, 1980; minimum, 787 microsiemens/cm, Apr. 20, 1987.
WATER TEMPERATURE: Maximum, 21.5° C, July 23, 1983; minimum, 9.0° C, Jan. 10, 1978.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
Sample
type
Time
TURBIDITY LAB
HACH
2100AN
(NTU)
(99872)
UV
ABSORBANCE
254 NM,
WTR FLT
(UNITS
/CM)
(50624)
UV
ABSORBANCE
280 NM,
WTR FLT
(UNITS
/CM)
(61726)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
WATER
(DEG C)
(00010)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
1030
ENVIRONMENTAL
7320
1.2
.045
.030
741
6.6
66
8.0
910
13.7
65.8
0900
ENVIRONMENTAL
30600
4.9
.055
.039
752
8.8
83
7.9
935
11.9
68.1
1000
ENVIRONMENTAL
30200
4.9
.039
.025
739
8.5
82
7.8
923
12.0
72.3
1015
ENVIRONMENTAL
15500
1.8
.043
.028
739
7.2
71
7.8
946
13.0
71.1
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT.DIS
FET
LAB
CACO3
(MG/L)
(29801)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SILICA,
DISSOLVED
(MG/L
AS
SIO2)
(00955)
NITROGEN,
AMMONIA
DISSOLVED
(MG/L
AS N)
(00608)
24.3
3.90
75.1
137
129
157
69.6
.3
8.56
219
596
551
<.04
25.5
4.02
81.1
137
130
156
70.6
.4
8.55
224
600
568
<.04
25.8
4.02
80.8
137
122
149
71.9
.2
9.01
221
596
561
<.04
24.9
3.94
81.6
138
126
153
70.9
.3
8.73
222
607
559
<.04
NITROGEN,
NITRITE
DISSOLVED
(MG/L
AS N)
(00613)
NITROGEN,PAR
TICULTE
WAT FLT
SUSP
(MG/L
AS N)
(49570)
PHOSPHORUS
DISSOLVED
(MG/L
AS P)
(00666)
ORTHOPHOSPHATE,
DISSOLVED
(MG/L
AS P)
(00671)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
CARBON,
INORG +
ORGANIC
PARTIC.
TOTAL
(MG/L
AS C)
(00694)
CARBON,
INORGANIC,
PARTIC.
TOTAL
(MG/L
AS C)
(00688)
CARBON,
ORGANIC
DISSOLVED
(MG/L
AS C)
(00681)
CARBON,
ORGANIC
PARTICULATE
TOTAL
(MG/L
AS C)
(00689)
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<.004
<.007
E.003
<.1
<.1
2.5
<.1
<1
NITROGEN,AMMONIA +
ORGANIC
DIS.
(MG/L
AS N)
(00623)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
NO2+NO3
DISSOLVED
(MG/L
AS N)
(00631)
.11
.14
.35
<.008
.03
.13
.16
.44
<.008
<.02
.005
<.007
.006
<.1
<.1
2.5
<.1
<1
.12
.11
.35
<.008
<.02
E.004
<.007
.005
<.1
<.1
2.4
<.1
<1
.14
.15
.33
E.004
<.02
E.002
<.007
.004
.2
<.1
5.2
.2
<1
116
COLORADO RIVER MAIN STEM
09421500 COLORADO RIVER BELOW HOOVER DAM, AZ-NV—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
.19
2.3
89
<.06
105
<.04
<.8
.16
2.8
77
<.06
108
<.04
.29
2.8
103
<.06
112
E.02
.25
2.5
104
<.06
106
<.04
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
MOLYBDENUM,
DISSOLVED
(UG/L
AS MO)
(01060)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
.12
1.7
<10
<.8
.11
1.7
<.8
.18
1.8
<.8
.16
STRONTIUM,
DISSOLVED
(UG/L
AS SR)
(01080)
VANADIUM,
DISSOLVED
(UG/L
AS V)
(01085)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
COBALT,
DISSOLVED
(UG/L
AS CO)
(01035)
2,4,5-T
DISSOLVED
(UG/L)
(39742)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LITHIUM
DISSOLVED
(UG/L
AS LI)
(01130)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<.08
38.3
<10
.10
38.3
.3
<10
<.08
37.5
<.1
2.5
<10
<.08
36.8
.6
2,4-D,
DISSOLVED
(UG/L)
(39732)
2,4-DB
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38746)
2,6-DIETHYL
ANILINE
WAT FLT
0.7 U
GF, REC
(UG/L)
(82660)
3HYDRXY
CARBOFURAN
WAT,FLT
GF 0.7U
REC
(UG/L)
(49308)
.3
ACETOCHLOR,
WATER
FLTRD
REC
(UG/L)
(49260)
4.5
<.06
1.9
<1
944
2.4
1
<.07
<.16
<.25
<.002
<.11
<.004
5.0
.53
1.8
<1
1180
1.9
1
<.07
<.16
<.25
<.006
<.11
<.006
4.5
1.69
2.5
<1
961
2.7
2
<.07
<.16
<.25
<.006
<.11
<.006
4.8
1.10
1.9
<1
963
2.4
3
<.07
<.16
<.25
<.006
<.11
<.006
ALDICARB SULFOXIDE,
WAT,FLT
GF 0.7U
REC
(UG/L)
(49314)
ALDICARB,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49312)
ALPHA
BHC
DISSOLVED
(UG/L)
(34253)
ATRAZINE,
WATER,
DISS,
REC
(UG/L)
(39632)
ACIFLUORFEN
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49315)
ALACHLOR,
WATER,
DISS,
REC,
(UG/L)
(46342)
ALDICARB
SULFONE
WAT,FLT
GF 0.7U
REC
(UG/L)
(49313)
BDMC,
SURROG,
WATER,
UNFLTRD
REC
PERCENT
(99835)
BENFLURALIN
WAT FLD
0.7 U
GF, REC
(UG/L)
(82673)
<.05
<.002
<.70
<.27
<.21
<.005
<.007
E40.6
<.010
<.05
<.09
<.07
<.002
<.05
<.004
<.20
<.27
<.21
<.05
<.004
<.20
<.27
<.21
<.005
<.007
88.4
<.010
<.05
<.09
<.07
<.002
<.005
E.007
86.2
<.010
<.05
<.09
<.07
<.002
<.05
<.004
<.20
<.27
<.21
<.005
E.004
64.2
<.010
<.05
<.09
<.07
<.002
CARBARYL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49310)
CARBARYL
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82680)
CARBOFURAN,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49309)
CARBOFURAN
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82674)
CHLORAMBEN,
METHYL
ESTER
WATER
FLTRD
(UG/L)
(61188)
CHLOROTHALONIL,
WAT,FLT
GF 0.7U
REC
(UG/L)
(49306)
<.080
<.041
<.15
<.020
<.21
<.080
<.041
<.15
<.020
<.21
<.080
<.041
<.15
<.020
<.080
<.041
<.15
<.020
a
BENTAZON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38711)
BROMACIL,
WATER,
DISS,
REC
(UG/L)
(04029)
BROMOXYNIL
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49311)
BUTYLATE,
WATER,
DISS,
REC
(UG/L)
(04028)
a
CHLORPYRIFOS
DISSOLVED
(UG/L)
(38933)
CLOPYRALID,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49305)
CYANAZINE,
WATER,
DISS,
REC
(UG/L)
(04041)
DACTHAL
MONOACID,
WAT,FLT
GF 0.7U
REC
(UG/L)
(49304)
DCPA
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82682)
DEETHYL
ATRAZINE,
WATER,
DISS,
REC
(UG/L)
(04040)
DIAZINON
D10 SRG
WAT FLT
0.7 U
GF, REC
PERCENT
(91063)
<.25
<.005
<.42
<.018
<.07
<.003
<.006
<.25
<.005
<.42
<.018
<.22
<.003
<.006
105
<.21
<.25
<.005
<.42
<.018
<.07
E.003
<.006
106
<.21
<.25
<.005
<.42
<.018
<.07
<.003
<.006
96.4
85.4
117
COLORADO RIVER MAIN STEM
09421500 COLORADO RIVER BELOW HOOVER DAM, AZ-NV—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
DICHLOBENIL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49303)
DICHLOR
PROP,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49302)
DIELDRIN
DISSOLVED
(UG/L)
(39381)
ETHALFLURALIN
WAT FLT
0.7 U
GF, REC
(UG/L)
(82663)
ETHOPROP
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82672)
FENURON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49297)
<.005
<.11
<.09
<.12
<.005
<.09
<.02
<.12
<.25
<.002
<.009
<.005
<.07
<.005
<.11
<.09
<.12
<.005
<.09
<.02
<.12
<.25
<.002
<.009
<.005
<.07
<.005
<.11
<.09
<.12
<.005
<.09
<.02
<.12
<.25
<.002
<.009
<.005
<.07
<.005
<.11
<.09
<.12
<.005
<.15
<.02
<.12
<.25
<.002
<.009
<.005
<.07
LINDANE
DISSOLVED
(UG/L)
(39341)
LINURON
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38478)
LINURON
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82666)
MALATHION,
DISSOLVED
(UG/L)
(39532)
METHIOCARB,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38501)
METHOMYL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49296)
METHYL
AZINPHOS
WAT FLT
0.7 U
GF, REC
(UG/L)
(82686)
METHYL
PARATHION
WAT FLT
0.7 U
GF, REC
(UG/L)
(82667)
89.3
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.22
<.050
<.006
97.4
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.26
<.050
<.006
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.22
<.050
<.006
<.004
<.06
<.035
<.027
<.20
<.26
<.07
<.22
<.050
<.006
NORFLUR
AZON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49293)
ORYZALIN,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49292)
PENDIMETHALIN
WAT FLT
0.7 U
GF, REC
(UG/L)
(82683)
PERMETHRIN
CIS
WAT FLT
0.7 U
GF, REC
(UG/L)
(82687)
FONOFOS
WATER
DISS
REC
(UG/L)
(04095)
<.06
<.003
<.06
<.003
<.06
<.003
<.06
<.003
a
HCH
ALPHA
D6 SRG
WAT FLT
0.7 U
GF, REC
PERCENT
(91065)
105
92.1
DIURON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49300)
EPTC
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82668)
DIAZINON,
DISSOLVED
(UG/L)
(39572)
FLUOMETURON
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38811)
DINOSEB
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49301)
DISULFOTON
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82677)
DICAMBA
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38442)
MCPA,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38482)
DNOC
WAT,FLT
GF 0.7U
REC
(UG/L)
(49299)
MCPB,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38487)
METOLACHLOR
WATER
DISSOLV
(UG/L)
(39415)
METRIBUZIN
SENCOR
WATER
DISSOLV
(UG/L)
(82630)
MOLINATE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82671)
NAPROPAMIDE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82684)
NEBURON,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49294)
P,P'
DDE
DISSOLV
(UG/L)
(34653)
PARATHION,
DISSOLVED
(UG/L)
(39542)
PEBULATE
WATER
FILTRD
0.7 U
GF, REC
(UG/L)
(82669)
<.013
<.006
<.002
<.007
<.07
<.04
<.28
<.013
<.006
<.002
<.007
<.07
<.04
<.28
<.16
<.003
<.007
<.002
<.010
<.006
<.16
<.003
<.010
<.004
<.022
<.006
E.007
<.006
<.002
<.007
<.07
<.04
<.013
<.006
<.002
<.007
<.32
<.04
<.28
<.16
<.003
<.010
<.004
<.022
<.006
<.28
<.16
<.003
<.010
<.004
<.022
<.006
PHORATE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82664)
PICLORAM,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49291)
PROMETON,
WATER,
DISS,
REC
(UG/L)
(04037)
PRONAMIDE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82676)
PROPACHLOR,
WATER,
DISS,
REC
(UG/L)
(04024)
PROPANIL
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82679)
SILVEX,
DISSOLVED
(UG/L)
(39762)
SIMAZINE,
WATER,
DISS,
REC
(UG/L)
(04035)
TEBUTHIURON
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82670)
TERBACIL
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82665)
<.011
<.09
M
<.004
<.010
<.011
<.02
<.22
<.36
<.03
<.011
<.02
<.034
<.011
<.09
<.01
<.004
<.010
<.011
<.02
<.22
<.25
<.03
<.005
<.02
<.034
<.011
<.09
E.01
<.004
<.010
<.011
<.02
<.22
<.61
<.03
<.007
M
<.034
<.011
<.09
M
<.004
<.010
<.011
<.02
<.22
<.12
<.03
<.005
<.02
<.034
PROPARGITE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82685)
OXAMYL,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38866)
PROPHAM,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49236)
PROPOXUR,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(38538)
118
COLORADO RIVER MAIN STEM
09421500 COLORADO RIVER BELOW HOOVER DAM, AZ-NV--CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
04...
FEB
22...
MAY
23...
AUG
29...
Remark
< -E -M -a
TERBUFOS
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82675)
THIOBENCARB
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82681)
TRIALLATE
WATER
FLTRD
0.7 U
GF, REC
(UG/L)
(82678)
TRICLOPYR,
WATER,
FLTRD,
GF 0.7U
REC
(UG/L)
(49235)
TRIFLURALIN
WAT FLT
0.7 U
GF, REC
(UG/L)
(82661)
<.02
<.005
<.002
<.07
<.009
3.58
--
<.02
<.005
<.002
<.07
<.009
3.10
1.0
44
<.02
<.005
<.002
<.07
<.009
3.47
<1.0
50
<42
<.02
<.005
<.002
<.07
<.009
3.86
1.0
75
41
URANIUM
NATURAL
DISSOLVED
(UG/L
AS U)
(22703)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SED.
SUSP.
SIEVE
DIAM.
% FINER
THAN
.062 MM
(70331)
--
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
-82.6
codes used in this report:
Less than
Estimated value
Presence verified, not quantified
Listed values are recovery percentages for the indicated compounds. These compounds are
added to the sample to determine the relative recovery of other organic compounds that are
detected using the same analytical method.
119
COLORADO RIVER MAIN STEM
09422500 LAKE MOHAVE AT DAVIS DAM, AZ-NV
LOCATION.--Lat 35° 11'50", long 114° 34'07", in SW1/4SW1/4 sec. 18, T.21 N., R.21 W., Gila and Salt River meridian, Mohave County, AZ, Hydrologic Unit 15030101, on forebay
structure on Arizona side of Davis Dam on Colorado River, 29 mi west of Kingman, AZ, and 67 mi downstream from Hoover Dam.
DRAINAGE AREA.--173,300 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Jan. 1950 to current year.
GAGE.--Water-stage recorder. Datum of gage is sea level.
REMARKS.--Reservoir is formed by earthfill and rockfill dam; dam completed in Apr. 1949 and storage began Jan. 17, 1950. Usable capacity, 1,810,000 acre-ft between
elevations 533.39 ft (lowest point of penstock outlet) - and 647.0 ft (top of spillway gates). A small amount of additional storage is available through use of splashboards
on the spillway gates.Dead storage, 8,530 acre-ft below elevation 533.39 ft. Lake is used for power development, regulation for irrigation demand, and to satisfy
requirements of the Treaty of 1944 with Mexico. Figures given herein represent usable contents.
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 1,811,000 acre-ft May 24, 1958, May 29, 1963, May 29, 1982; maximum elevation, 647.04 ft May 29, 1963,
May 29, 1982; minimum contents (since 1952), 1,168,000 acre-ft Sept. 8, 1953, elevation, 622.15 ft.
EXTREMES FOR CURRENT YEAR.--Maximum contents, 1,742,000 acre-ft May 29-30, elevation, 644.58 ft; minimum, 1,440,000 acre-ft Nov.13, elevation, 633.23 ft.
Capacity table (elevation, in feet, and usable contents, in acre-feet)
628
632
635
638
1,309,000
1,409,000
1,486,000
1,564,000
641
644
647
1,644,000
1,726,000
1,810,000
RESERVOIR STORAGE, in (ACRE-FEET), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
1606000
1605000
1601000
1595000
1597000
1478000
1474000
1470000
1467000
1470000
1528000
1527000
1528000
1523000
1525000
1660000
1658000
1658000
1664000
1660000
1672000
1669000
1668000
1670000
1671000
1634000
1633000
1631000
1635000
1636000
1711000
1712000
1713000
1712000
1709000
1675000
1673000
1675000
1671000
1670000
1720000
1700000
1689000
1686000
1692000
1725000
1727000
1723000
1710000
1700000
1696000
1694000
1685000
1674000
1667000
1703000
1701000
1702000
1704000
1695000
6
7
8
9
10
1590000
1583000
1572000
1567000
1555000
1473000
1475000
1481000
1475000
1464000
1530000
1542000
1539000
1539000
1537000
1660000
1662000
1660000
1662000
1662000
1668000
1667000
1664000
1653000
1654000
1636000
1638000
1640000
1635000
1629000
1698000
1688000
1684000
1679000
1678000
1670000
1677000
1679000
1684000
1685000
1696000
1700000
1689000
1680000
1672000
1683000
1679000
1669000
1668000
1675000
1669000
1668000
1672000
1675000
1677000
1687000
1676000
1665000
1665000
1665000
11
12
13
14
15
1552000
1549000
1538000
1530000
1528000
1457000
1452000
1440000
1441000
1454000
1541000
1543000
1548000
1555000
1562000
1667000
1670000
1671000
1666000
1670000
1653000
1646000
1643000
1637000
1629000
1634000
1634000
1641000
1649000
1654000
1683000
1691000
1694000
1689000
1688000
1669000
1668000
1671000
1675000
1676000
1667000
1667000
1667000
1672000
1663000
1676000
1682000
1682000
1678000
1671000
1676000
1677000
1683000
1688000
1691000
1676000
1680000
1684000
1686000
1691000
16
17
18
19
20
1525000
1523000
1522000
1516000
1506000
1470000
1480000
1492000
1497000
1505000
1563000
1570000
1573000
1574000
1583000
1670000
1670000
1672000
1669000
1674000
1623000
1620000
1611000
1612000
1620000
1660000
1667000
1676000
1681000
1691000
1681000
1680000
1680000
1674000
1661000
1683000
1685000
1689000
1685000
1687000
1656000
1667000
1668000
1670000
1672000
1678000
1676000
1678000
1680000
1671000
1693000
1679000
1674000
1669000
1666000
1691000
1682000
1671000
1666000
1656000
21
22
23
24
25
1501000
1493000
1484000
1477000
1474000
1506000
1498000
1489000
1484000
1489000
1591000
1593000
1601000
1604000
1608000
1671000
1672000
1672000
1670000
1675000
1629000
1633000
1629000
1622000
1630000
1700000
1706000
1704000
1703000
1711000
1660000
1663000
1669000
1668000
1677000
1693000
1707000
1718000
1726000
1728000
1666000
1659000
1658000
1660000
1673000
1655000
1655000
1663000
1666000
1676000
1661000
1665000
1666000
1664000
1660000
1643000
1632000
1624000
1613000
1615000
26
27
28
29
30
31
1475000
1468000
1465000
1466000
1470000
1472000
1496000
1509000
1516000
1526000
1530000
---
1614000
1624000
1635000
1643000
1649000
1654000
1671000
1670000
1665000
1671000
1675000
1673000
1637000
1644000
1641000
-------
1715000
1716000
1720000
1725000
1718000
1707000
1679000
1671000
1676000
1679000
1679000
---
1720000
1720000
1733000
1742000
1742000
1735000
1685000
1701000
1712000
1718000
1720000
---
1678000
1670000
1664000
1672000
1678000
1694000
1673000
1678000
1689000
1697000
1705000
1695000
1606000
1593000
1588000
1585000
1577000
---
MAX
MIN
(*)
(**)
1606000
1465000
634.45
-136000
1530000
1440000
636.68
+58000
1654000
1523000
641.37
+124000
1675000
1658000
642.05
+19000
1672000
1611000
640.89
-32000
1725000
1629000
643.29
+66000
1713000
1660000
642.29
-28000
1742000
1668000
644.32
+56000
1720000
1656000
643.76
-15000
1727000
1655000
642.84
-26000
1705000
1660000
642.88
+1000
1704000
1577000
638.47
-118000
CAL YR 2001
WTR YR 2002
(*)
(**)
MAX 1765000
MAX 1742000
MIN 1440000 (**) +53000
MIN 1440000 (**) -31000
Elevation, in feet, at end of month.
Change in contents, in acre-feet.
120
COLORADO RIVER MAIN STEM
09423000 COLORADO RIVER BELOW DAVIS DAM, AZ-NV
LOCATION.--Lat 35° 11'30", long 114° 34'17", in SE1/4NE1/4 sec. 1, T.32 S., R.66 E., Mount Diablo meridian, in Clark County, Nevada, Hydrologic Unit 15030101, on right bank
0.5 mi downstream from Davis Dam, 29 mi west of Kingman, AZ, and 68 mi downstream from Hoover Dam.
DRAINAGE AREA.--173,300 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--June 1905 to Sept. 1907 (published as "at Hardyville"), Mar. 1949 to current year.
REVISED RECORDS.--WDR AZ-86-1:1981.
GAGE.--Water-stage recorder. Datum of gage is 490.00 ft, sea level; gage readings have been reduced to elevations above sea level since Oct. 1, 1967. 1905–7, nonrecording
gage at site 4.8 mi downstream at datum about 3.4 ft lower. Mar. 16 to May 3, 1949, water-stage recorder at site 0.5 mi downstream at datum 10.00 ft higher. May 4,
1949, to Feb. 24, 1956, water-stage recorder at site 400 ft upstream at datum 10.00 ft higher. Feb. 25, 1956, to Sept. 30, 1967, water-stage recorder at present site at datum
10.00 ft higher.
REMARKS.--No estimated daily discharges. Records excellent. Flow regulated by Lake Mead since Feb. l, 1935, and by Lake Mohave since Jan. 17, 1950. Many diversions
upstream for irrigation, industrial, and municipal uses.
EXTREMES FOR PERIOD OF RECORD.--1905–7: Maximum daily discharge, 116,000 ft3/s June 20, 1906; minimum daily, 2,850 ft3/s Jan. 5, 1906.
1949–2002: Maximum discharge, 46,200 ft3/s July 2, 1983, elevation, 509.48 ft; maximum elevation, 513.91 ft Apr. 22, 1952; no flow at Davis Dam parts of several days July
to Sept. 1950 and Dec. 27, 1950, when gates in dam were closed; minimum daily discharge, 285 ft3/s Aug. 3, 1950.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 25,300 ft3/s July 26, elevation, 505.06 ft. Minimum daily discharge, 8,990 ft3/s Nov. 17.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
12300
12500
12800
12800
12200
9000
9460
9100
9020
9050
10600
10600
10500
12500
12500
9880
10100
10000
10300
10300
13500
12700
12700
13100
13800
19200
16700
16800
18500
18300
19200
19400
19500
19700
19700
20200
20900
18700
18300
17300
18900
18900
19400
18500
18100
17900
17400
17300
16500
17800
16600
17100
16000
15900
16900
15400
15400
15300
15400
15200
6
7
8
9
10
11800
11700
11700
13800
13700
9230
9580
10000
10800
10500
11900
11800
10500
10500
10800
10400
10700
10600
10600
10700
15000
15000
15100
14200
14300
18700
18600
18500
17300
17200
19800
19800
19800
20100
20300
18300
18300
18200
19000
20100
18300
18800
17700
17700
17800
17000
17200
17200
18400
18500
16800
15300
15300
15400
14400
15300
14400
14400
12800
12100
11
12
13
14
15
11000
10700
10200
10300
11200
10600
10800
11900
9790
9420
12700
11700
11700
10100
9950
11500
9760
10400
12100
12200
13700
14800
14700
16300
16200
18400
18700
18600
18100
18000
18700
19000
18100
18100
19800
19400
19400
19500
19400
19400
19500
19500
19100
19000
17700
17400
17300
16700
16700
16800
14300
15400
15500
15500
14700
10900
12500
12300
11300
10900
16
17
18
19
20
11100
11100
11300
11600
10800
9450
8990
9980
11500
13100
9990
10600
11600
11800
11300
12400
11300
12400
12400
11600
14800
14700
14800
13500
13300
17200
17200
17200
17200
17600
20400
20500
20400
20300
19700
18700
18300
17400
17800
18200
17400
18700
18600
19400
18300
16300
15900
16300
16400
17500
17200
16500
16300
17400
17500
12100
13000
13600
14200
16000
21
22
23
24
25
10800
12000
12200
11900
10800
13200
13300
13300
12600
12600
9450
9520
9500
9410
9430
10900
12800
12000
12100
12000
14000
16000
15200
15000
17400
17000
18000
17800
17600
18300
19500
19800
20300
21200
20300
19100
18300
17600
18200
18700
18100
17300
17300
17300
16800
17300
16700
16600
18300
19000
16500
16400
12200
15000
15300
15100
15900
16200
15500
13100
26
27
28
29
30
31
9760
11200
10200
9030
9040
9190
11700
11600
10700
10100
10600
---
9430
9630
9580
9190
9410
9630
11800
11700
13100
12600
12600
13000
19300
19300
19300
-------
18700
18800
19200
19200
18400
18300
20400
19300
18700
20200
20200
---
19200
17000
16800
18500
19300
19800
17800
17300
17800
17700
18000
---
19000
17600
17600
16600
16800
16700
14500
15500
15500
15500
15400
15500
14400
14600
10900
12800
15400
---
TOTAL
MEAN
MAX
MIN
AC-FT
350720
11310
13800
9030
695700
320970
10700
13300
8990
636600
327820
10570
12700
9190
650200
354240
11430
13100
9760
702600
421700
15060
19300
12700
836400
559300
18040
19200
16700
1109000
592200
19740
21200
18100
1175000
579300
18690
20900
16800
1149000
546700
18220
19500
16800
1084000
534700
17250
19000
15900
1061000
487300
15720
17500
12200
966600
416400
13880
16200
10900
825900
CAL YR 2001
WTR YR 2002
TOTAL 5327650
TOTAL 5491350
MEAN 14600
MEAN 15040
MAX 22300
MAX 21200
MIN 8670
MIN 8990
AC-FT 10570000
AC-FT 10890000
121
COLORADO RIVER MAIN STEM
09423500 COLORADO RIVER AT NEEDLES, CA
LOCATION.--Lat 34° 51'06", long 114° 36'33", in SE1/4SE1/4 sec. 19, T.9 N., R.23 E., San Bernardino meridian, San Bernardino County, Hydrologic Unit 15030101, on right bank
at Needles, 15 mi upstream from Bureau of Reclamation gaging station near Topock, AZ, 30 mi downstream from Davis Dam, and 97 mi downstream from Hoover Dam.
DRAINAGE AREA.--174,500 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Apr. 1931 to current year (mean elevations through Sept. 1987; maximum elevations thereafter).
REVISED RECORDS.--WSP 1119:1931-47. WDR AZ-89-1:1983–88.
GAGE.--Water-stage recorder. Datum of gage is sea level. Prior to May 15, 1942, at site 550 ft downstream and May 15, 1942 to Feb. 16, 1969, at site 200 ft upstream.
REMARKS.--Elevation of river below bottom of gage (elevation 459.52 ft) Oct. 12, Jan. 16-21, 25-31, Feb. 2, 3, 5-11. Flow regulated by Lake Mead since Feb. 1, 1935, and by
Lake Mohave since Jan. 17, 1950.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 475.77 ft Nov. 30, 1944; minimum recorded, 457.84 ft Feb. 26, 1973.
EXTREMES FOR CURRENT YEAR.--Maximum recorded elevation, 463.75 ft Apr.26–27.
ELEVATION, in FT (NGVD), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MAXIMUM VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
459.80
460.19
460.38
460.46
460.48
-----------
458.87
458.90
458.91
459.15
459.23
-----------
460.08
460.11
460.00
459.97
460.06
461.92
461.85
461.69
461.89
461.87
461.86
461.92
461.94
462.01
462.01
463.47
463.60
463.58
463.39
463.39
463.20
463.13
463.40
463.36
463.22
e463.37
e463.35
e463.28
e463.27
e463.19
e462.94
e463.02
e463.08
e462.72
e462.90
e462.87
e462.82
e462.73
e462.71
e462.83
6
7
8
9
10
460.22
459.98
459.86
460.86
460.93
----458.53
458.87
458.87
459.25
459.20
459.09
458.90
458.87
-----------
460.71
461.09
461.09
460.49
460.58
461.93
461.95
461.93
461.94
461.95
462.07
462.07
462.04
462.19
462.24
463.22
463.24
463.22
463.30
463.37
463.63
463.65
463.62
463.48
463.46
e463.38
e463.28
e463.34
e463.49
e463.45
e463.00
e462.81
e462.69
e462.69
e462.73
e462.76
e462.80
e462.35
e461.00
461.00
11
12
13
14
15
460.87
459.10
458.87
458.74
458.85
458.91
458.93
460.11
460.11
459.32
459.21
459.21
458.96
458.32
458.09
------459.72
460.07
460.05
460.53
460.76
461.18
461.14
461.94
461.98
461.83
461.86
461.86
462.23
461.95
461.91
461.82
462.03
463.40
463.42
463.43
463.44
462.66
463.55
463.62
e463.61
e463.61
e463.56
e463.46
e463.20
e463.12
e463.02
e463.05
e462.48
e462.57
e462.79
e462.85
e462.88
460.37
460.84
460.83
460.69
460.40
16
17
18
19
20
459.00
458.99
459.00
459.08
459.17
------458.89
459.30
458.09
458.09
458.09
458.15
458.28
459.97
459.71
459.91
459.79
460.04
461.20
460.57
460.79
460.68
459.81
461.80
461.75
461.75
461.71
461.75
462.20
462.25
462.26
462.26
462.25
462.46
462.46
462.44
462.43
462.46
e463.43
e463.30
e463.55
e463.53
e463.62
e463.01
e462.87
e462.76
e462.87
e463.08
e463.11
e463.17
e463.04
e463.26
e463.31
460.49
461.09
461.08
461.22
461.70
21
22
23
24
25
458.97
459.60
460.29
460.37
460.23
459.34
459.33
459.34
459.38
459.38
458.23
---------
459.72
459.57
459.81
459.55
459.71
460.08
460.82
460.99
460.82
461.72
461.75
461.68
461.74
461.73
461.72
461.96
462.12
462.28
463.11
462.70
462.46
463.00
463.00
462.42
462.37
e463.45
e463.45
e463.34
e463.36
e463.38
e463.22
e463.29
e462.82
e463.24
e463.37
e463.34
e463.17
e463.13
e463.15
e462.50
461.64
461.80
461.79
461.69
461.29
26
27
28
29
30
31
459.07
458.88
459.13
458.84
-----
459.37
459.10
459.10
458.74
458.82
---
-------------
459.55
459.68
459.89
460.26
460.06
459.98
461.86
461.89
461.91
-------
461.77
461.78
461.79
461.85
461.82
461.78
463.75
463.75
463.40
463.47
463.46
---
460.25
461.33
461.07
461.86
463.21
463.18
e463.28
e463.39
e463.61
e463.31
e463.39
---
e463.46
e463.50
e463.18
e463.17
e462.95
e462.97
e462.55
e462.16
e462.46
e462.64
e462.67
e462.72
461.41
462.11
462.06
460.74
461.69
---
MAX
MIN
460.93
458.74
460.11
458.53
459.25
458.09
460.26
459.55
461.91
459.81
461.98
461.68
463.75
461.82
463.60
460.25
463.65
463.13
463.50
462.76
463.34
462.16
462.87
460.37
WTR YR 2002
e
MAX 463.75
Estimated
MIN 458.09
122
DIVERSIONS AND RETURN FLOWS BETWEEN DAVIS DAM AND PARKER DAM
09423550 TOPOCK MARSH INLET NEAR NEEDLES, CA
LOCATION.--Lat 34° 50'10", long 114° 35'03", in NE1/4NW1/4 sec. 33, T.9 N., R.23 E., San Bernardino meridian, in Mohave County, AZ, Hydrologic Unit 15030101, on left bank
of Colorado River on north side of intake structure, 1.3 mi east of Needles.
PERIOD OF RECORD.--Jan. 1967 to current year.
GAGE.--Water-stage recorders above and below intake gates and on intake gates to record head and gate openings. Datum of gages is 400.00 ft above sea level.
REMARKS.--No estimated daily discharges. Records fair. Topock Marsh inlet diverts water from the Colorado River into Topock Marsh, an area of 4,260 acres. This water
flows through the marsh and returns to the Colorado River through the Topock Marsh outlet. The U.S. Fish and Wildlife Service operate the gate settings that control the
flow into marsh. Monthly total return flows through the outlet, sta 09423650, Topock Marsh Outlet near Topock, AZ, are shown in the table below. Prior to June 1978, daily
flows for this station were published separately.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 286 ft3/s Mar. 31, 1995; no flow at times in most years.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
12
19
36
40
36
OCT
4.4
4.1
7.4
4.1
4.2
17
18
19
24
34
2.8
1.0
3.0
2.8
4.2
59
48
45
49
63
112
91
85
106
105
48
37
56
64
63
67
70
63
54
53
116
112
118
116
106
130
115
119
106
123
104
111
94
91
105
87
83
81
81
88
6
7
8
9
10
28
22
19
37
48
4.2
7.3
9.7
14
16
29
28
25
18
18
0.90
12
5.4
2.8
7.5
78
94
87
73
73
95
98
102
89
87
62
62
62
64
60
58
58
57
61
64
103
118
101
98
92
115
113
109
136
139
108
91
88
87
77
84
76
74
66
42
11
12
13
14
15
47
22
13
14
18
16
17
20
28
12
31
36
22
10
7.0
3.6
7.4
3.1
24
36
57
81
81
102
113
93
104
99
103
95
57
60
55
68
83
67
64
68
71
71
135
134
134
127
108
112
119
106
105
106
87
76
85
88
77
28
36
48
32
28
16
17
18
19
20
20
20
20
25
23
7.0
7.3
4.4
17
50
5.6
5.9
14
20
19
51
20
48
39
28
112
70
84
78
38
80
84
82
82
85
83
72
68
66
65
68
64
61
60
73
118
122
138
136
135
104
95
97
98
115
101
101
98
108
111
31
59
46
73
91
21
22
23
24
25
19
20
44
40
37
36
44
42
35
38
9.4
2.0
2.0
2.3
1.8
22
38
38
30
33
57
101
95
84
105
86
85
90
93
83
66
66
68
70
69
100
95
88
91
97
121
101
108
105
99
115
112
95
120
139
101
99
98
87
83
73
99
97
106
50
26
27
28
29
30
31
20
13
22
12
5.8
4.9
34
20
25
9.5
16
---
0.50
0.80
0.70
1.1
1.1
0.70
32
32
50
50
51
52
155
157
153
-------
96
80
76
76
74
72
63
61
59
66
66
---
101
88
83
101
110
113
107
104
123
110
117
---
136
123
116
102
108
109
83
77
88
87
85
84
66
76
46
22
73
---
TOTAL
MEAN
MAX
MIN
AC-FT
(*)
756.7
24.41
48
4.9
1500
0
553.6
18.45
50
4.1
1100
0
422.90
13.64
36
0.50
839
0
730.50
23.56
52
0.90
1450
0
2392
85.43
157
38
4740
0
2788
89.94
112
72
5530
2310
1909
63.63
83
37
3790
4690
2339
75.45
113
53
4640
4130
3462
115.4
138
92
6870
1450
3537
114.1
139
95
7020
383
2860
92.26
111
76
5670
0
1942
64.73
106
22
3850
0
MEAN 54.56
MEAN 64.91
MAX 158
MAX 157
CAL YR 2001
WTR YR 2002
NOV
DEC
TOTAL 19915.60
TOTAL 23692.70
JAN
MIN 0.00
MIN 0.50
(*) Return surface flow, in acre-feet, to Colorado River.
AC-FT 39500 (*) 16570
AC-FT 46990 (*) 13230
123
DIVERSIONS FROM LAKE HAVASU
09424150 COLORADO RIVER AQUEDUCT NEAR PARKER DAM, AZ-CA
LOCATION.--Lat 34° 18'58", long 114° 09'23", in NW1/4SW1/4 sec. 28, T.3 N., R.27 E., San Bernardino meridian, in San Bernardino County, CA, Hydrologic Unit 15030101, at
intake pumping plant of Metropolitan Water District of Southern California on Lake Havasu, 1.8 mi upstream from Parker Dam and 149 mi downstream from Hoover Dam.
PERIOD OF RECORD.--Jan. 1939 to current year (monthly diversions only, Oct. 1942 to Sept. 1991. Published as a supplement to records for Colorado River below Parker Dam,
1942–50. Percolation return flow (monthly flow only) Oct. 1964 to Sept. 1973; prior to Oct. 1964 miscellaneous measurements only. Prior to 1992, published as monthly
discharges.
GAGE.--Flow obtained from acoustical flowmeters. Prior to Aug. 1990, flow obtained from Venturi meters in pressure lines at intake pumping plant.
REMARKS.--Pumping began Jan. 7, 1939. Figures of daily streamflow shown represent water pumped from Lake Havasu less return surface flow from Gene and Copper Basin
Reservoirs. No water returned as surface flow from these reservoirs this year. Percolation return flow from Gene and Copper Basin Reservoirs is estimated by the Bureau
of Reclamation as 10 acre-ft/day for a yearly total of 3,650 acre-ft, which is used for accounting purposes.
COOPERATION.--Diversion records furnished by Metropolitan Water District of Southern California.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily streamflow, 4,351 acre-ft, Sept. 1, 1998; no diversion at times.
STREAMFLOW, DAILY, in ACRE FEET, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
3100
2978
3062
2822
3703
3380
3069
3431
3432
3439
3437
3487
3351
3445
3468
2906
2978
2987
3463
3452
3504
3479
3470
3455
3436
3949
3939
3886
3856
2938
3477
3483
3487
3499
3497
3348
3445
3503
3517
3522
3451
3439
3430
3438
3442
3439
3014
2920
3005
3027
3947
3662
3404
3514
3392
3994
3715
2884
3923
3838
6
7
8
9
10
3917
3886
3859
3546
3431
3479
3440
3810
3862
3833
3386
3414
3405
3397
3378
3465
3465
3965
3908
3898
3475
3474
3500
3853
3940
2796
3282
3453
3473
3482
3362
3510
3491
3011
3594
3517
3497
3479
3482
3459
3467
3489
3506
3563
3395
3956
3984
3374
3483
3036
3467
3456
3914
3879
3841
3826
3447
3392
3428
3500
11
12
13
14
15
3447
3472
3474
3484
3918
3590
3571
3072
2967
3560
2940
2480
2525
2553
3007
3873
3875
3377
3394
2938
3900
3529
3349
3464
3486
3961
3954
3880
3476
3429
3961
3956
3841
3474
3450
3453
3491
3504
3517
3510
3450
3553
3328
3432
3465
3491
3945
3930
3866
3878
3415
3433
3499
3349
3890
3450
3486
3474
3920
3876
16
17
18
19
20
4140
3599
3398
3436
3425
3295
3535
3815
3860
3840
3445
3457
3452
3487
3376
3231
3441
3480
3810
3888
3409
3484
3451
3456
3598
3493
3491
3424
3477
3468
3315
3464
3485
3456
3481
3500
3471
3474
3472
3558
3473
3482
2933
3457
4004
3517
3427
3441
3456
3468
3850
3825
3405
3421
3454
3860
3862
3335
3401
3429
21
22
23
24
25
3395
3687
3720
3731
2331
3493
2987
2936
3006
3441
3423
3415
2936
2936
3400
3443
3446
3433
3420
3435
3265
3455
3467
3244
3449
3482
3477
3478
3480
3481
3475
3606
3400
3477
3478
3507
3550
3388
3994
3942
3966
3918
3472
3455
3493
3483
3464
3437
3438
3418
3405
3483
3901
3875
3811
3439
3388
3435
3511
3348
26
27
28
29
30
31
3726
3838
3682
2733
2580
2669
3903
3904
3858
3867
3507
---
3395
3393
3885
3634
3288
3857
3403
3396
3462
3439
3483
3474
3498
3522
3512
-------
3479
3482
3488
3500
3475
3485
3485
3480
3990
3882
2999
---
3934
3968
3357
3426
3435
3451
3489
3849
3939
3910
3526
---
3436
3485
3506
3874
3882
3737
3810
3384
3623
3285
3346
3465
3440
3426
3421
3438
3332
---
106189
3425
4140
2331
105182
3506
3904
2936
102452
3305
3885
2480
107628
3472
3965
2906
98124
3504
3940
3244
109414
3529
3961
2796
105566
3519
3990
2999
109671
3538
3994
3348
106214
3540
4004
2933
108817
3510
3984
2920
111405
3594
3947
3285
106218
3541
3994
2884
TOTAL
MEAN
MAX
MIN
CAL YR 2001
WTR YR 2002
TOTAL 1253489
TOTAL 1276880
MEAN 3434
MEAN 3498
MAX 4140
MAX 4140
MIN 1777
MIN 2331
124
BILL WILLIAMS RIVER BASIN
09424450 BIG SANDY RIVER NEAR WIKIEUP, AZ
LOCATION.--Lat 34° 27'45", long 113° 37'25", in SE1/4 sec. 16, T.13 N. , R.13 W., Mohave County, Hydrologic Unit 15030201, on left bank 7 mi downstream from Burro Creek,
15 mi upstream from confluence with Santa Maria River, and 17 mi south of Wikieup.
DRAINAGE AREA.--2,742 mi2, of which 10.1 mi2 are noncontributing.
PERIOD OF RECORD.--Mar. 1966 to current year.
REVISED RECORDS.--WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 1,400 ft, above sea level, from topographic map. Prior to Oct. 1, 1970, at datum 3. 06 ft higher. Oct. 1, 1970, to Oct. 10,
1973, at datum 2.06 ft higher. Supplementary water-stage recorder for low flows at site 75 ft upstream at same datum from Apr. 10, 1975 to Mar. 1, 1978; Mar. 28 to Dec.7,
1966, and Apr. 2, 1969, to Apr. 9, 1975, at site 0.8 mi downstream at different datum.
REMARKS.--Records good, except estimated discharges, which are poor. Diversions above station for irrigation of about 3,800 acres, mostly by pumping from ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 68,700 ft3/s Feb. 9, 1993, gage height, 16.00 ft, from rating curve extended above 2,200 ft3/s on basis of
slope-area measurement of peak flow; minimum daily, 1.3 ft3/s July 13, 1974.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,000 ft3/s and (or) maximum (*):
Date
Time
Sept. 8 ...........
Discharge (ft3/s) Gage height (ft)
1445
*500
3.26
Minimum daily discharge, 2.1 ft3/s, May 21, 22 and Sept. 16, 17.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
2.8
2.8
2.8
2.8
2.8
3.3
3.3
3.2
3.2
3.2
2.8
2.8
2.9
3.0
2.8
3.5
3.6
3.8
3.8
3.9
3.4
3.6
3.7
3.7
3.7
3.2
3.2
3.3
3.3
3.5
2.5
2.5
2.5
2.5
2.7
2.7
2.6
2.8
2.9
3.0
3.2
3.2
3.2
3.2
3.0
e2.8
e2.8
e2.8
e2.7
e2.7
6
7
8
9
10
3.0
2.9
2.8
2.8
2.8
3.0
2.9
2.8
2.8
2.8
2.9
3.0
3.0
3.0
3.0
3.2
3.2
3.1
3.0
3.1
2.8
2.8
2.8
2.8
2.7
3.9
3.9
3.8
3.5
3.5
3.5
3.5
3.4
3.4
3.6
3.7
3.6
3.6
3.5
3.6
2.9
3.1
3.1
3.0
3.0
3.0
3.2
3.0
3.0
3.0
3.0
3.0
3.0
2.9
e2.8
e2.7
e2.5
45
56
3.1
11
12
13
14
15
2.7
2.7
2.7
2.7
2.7
2.8
3.0
2.9
2.8
2.8
3.0
3.2
3.3
3.3
3.3
3.3
3.3
3.3
3.2
3.2
2.8
2.9
3.0
3.0
2.9
3.5
3.5
3.5
3.5
3.5
3.7
3.7
3.9
3.9
3.9
3.3
3.3
3.0
2.7
2.7
2.8
2.8
2.8
2.8
3.0
3.0
3.0
3.0
2.9
3.0
e2.8
e2.8
e2.7
e2.7
e2.7
2.4
2.2
2.3
2.4
2.2
16
17
18
19
20
2.7
2.7
2.7
2.7
2.7
2.9
3.0
3.0
3.0
3.0
3.3
3.3
3.3
3.3
3.3
3.2
3.2
3.2
3.2
3.0
2.8
2.8
2.9
3.1
3.2
3.5
3.5
3.4
3.4
3.5
4.1
4.1
4.1
4.1
4.1
2.7
2.6
2.4
2.4
2.3
2.9
2.8
2.9
3.0
3.0
3.0
2.9
2.8
2.8
2.8
e2.8
e2.9
e2.8
e2.8
e2.8
2.1
2.1
2.4
2.5
2.6
21
22
23
24
25
2.7
3.0
3.0
3.0
3.0
3.0
3.1
3.2
3.1
2.9
3.3
3.2
3.2
3.2
3.3
3.0
3.0
3.0
3.0
2.8
3.0
3.1
3.3
3.3
3.3
3.5
3.7
3.7
3.6
3.6
3.9
3.9
3.8
3.7
3.7
2.1
2.1
2.2
2.4
2.4
3.0
2.9
2.8
2.8
2.7
2.9
3.0
3.2
3.2
3.2
e2.7
e2.9
e3.0
e3.0
e2.8
2.7
2.7
2.8
2.7
2.5
26
27
28
29
30
31
3.0
3.0
2.9
2.8
2.9
3.0
2.7
2.8
2.8
2.8
2.8
---
3.4
3.5
3.4
3.3
3.3
3.3
2.8
2.8
2.8
2.8
2.7
2.7
3.2
3.3
3.5
-------
3.6
3.5
3.5
3.5
3.4
3.3
3.5
3.5
3.4
3.3
3.3
---
2.4
2.4
2.4
2.4
2.4
2.4
2.7
2.6
2.7
2.8
2.7
---
3.2
3.2
3.2
3.2
3.2
3.2
e2.9
e3.0
e2.9
e2.8
e2.8
e2.8
2.5
2.7
2.7
2.6
2.4
---
88.6
2.858
3.0
2.7
176
0.00
0.00
87.7
2.923
3.2
2.7
174
0.00
0.00
97.9
3.158
3.5
2.8
194
0.00
0.00
95.3
3.074
3.3
2.7
189
0.00
0.00
83.6
2.986
3.5
2.7
166
0.00
0.00
110.9
3.577
3.9
3.3
220
0.00
0.00
111.1
3.703
4.1
3.3
220
0.00
0.00
87.5
2.823
3.7
2.1
174
0.00
0.00
84.3
2.810
3.1
2.5
167
0.00
0.00
93.1
3.003
3.2
2.6
185
0.00
0.00
89.9
2.900
3.2
2.7
178
0.00
0.00
172.6
5.753
56
2.1
342
0.00
0.00
4.988
14.1
1980
2.10
1971
5.200
20.8
1990
1.86
1974
20.18
178
1971
2.69
1975
19.75
226
1983
2.84
1975
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
10.79
100
1973
2.06
2000
19.44
252
1979
2.44
1991
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
70.96
737
1985
2.14
1997
165.8
2674
1993
2.38
1992
353.1
3892
1993
2.08
2000
289.8
1943
1978
3.58
2002
FOR 2001 CALENDAR YEAR
15653.8
42.89
2880
Mar
2.7
Sep
2.7
Sep
31050
0.016
0.21
43
3.4
2.8
38.20
259
1998
3.55
1971
8.470
35.8
1980
2.02
1990
FOR 2002 WATER YEAR
1202.5
3.295
8
6
6
56
Sep 9
2.1
May 21
2.2
Sep 11
2390
0.001
0.02
3.6
3.0
2.7
WATER YEARS 1967 - 2002
82.56
586
1993
3.05
2000
26100
Feb 9 1993
1.3
Jul 13 1974
1.5
Jul 22 1974
59810
0.030
0.41
54
4.9
3.0
125
BILL WILLIAMS RIVER BASIN
09424900 SANTA MARIA RIVER NEAR BAGDAD, AZ
LOCATION.--Lat 34° 18'21", long 113° 20'47", in SE1/4 sec. 12, T.11 N., R.11 W., Mohave County, Hydrologic Unit 15030203, on right bank 4.0 mi east of Palmerita Ranch, 12 mi
upstream from confluence with Big Sandy River, and 21 mi southwest of Bagdad.
DRAINAGE AREA.--1,129 mi2.
PERIOD OF RECORD.--Apr. 1966 to Sept. 1985, Oct. 1988 to current year.
REVISED RECORDS.--WDR AZ–89–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 1,360 ft above sea level, from topographic map.
REMARKS.--Records poor. Diversions above station for irrigation of about 5,300 acres, most of which is by pumping from ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,600 ft3/s Mar. 1, 1978, gage height, 7.82 ft, from rating curve extended above 5,000 ft3/s on basis of
step-backwater computations and slope-area measurements at gage heights 5.50 and 7.82 ft; no flow for many days in most years.
EXTREMES FOR CURRENT YEAR.--No flow for entire year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
1.649
16.6
1993
0.000
1966
2.838
53.4
1999
0.000
1966
14.43
198
1992
0.000
1966
18.49
355
1983
0.000
1966
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
21.73
505
1973
0.000
1967
19.46
392
1979
0.000
1967
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
68.00
461
1979
0.000
1969
110.4
936
1980
0.000
1970
198.3
1519
1980
0.000
1967
207.8
1035
1973
0.000
1967
FOR 2001 CALENDAR YEAR
7482.39
20.50
683
Mar
0.00 Jan
0.00 Jan
14840
0.018
0.25
43
0.00
0.00
33.98
204
1976
0.000
1967
6.530
36.7
1995
0.000
1966
FOR 2002 WATER YEAR
0.00
0.000
8
1
1
0.00 Oct
0.00 Oct
0.00 Oct
0.00
0.000
0.00
0.00
0.00
0.00
1
1
1
WATER YEARS 1966 - 2002
58.14
232
1980
0.000
1996
8410
Dec 18 1978
0.00 Apr 27 1966
0.00 Apr 27 1966
42120
0.051
0.70
67
0.00
0.00
126
BILL WILLIAMS RIVER BASIN
09426000 BILL WILLIAMS RIVER BELOW ALAMO DAM, AZ
LOCATION.--Lat 34° 13'51", long 113° 36'29", in SE1/4SE1/4 sec. 4, T.10 N., R.13 W., La Paz County, Hydrologic Unit 15030204, on left bank 0.6 mi downstream from Alamo
Dam, 3.7 mi downstream from Bullard Wash, and 8 mi downstream from confluence of Santa Maria and Big Sandy Rivers.
DRAINAGE AREA.--4,633 mi2, of which 10 mi2 probably is noncontributing.
PERIOD OF RECORD.--Oct. 1939 to current year. Monthly discharge only for Oct. and Nov. 1939, published in WSP 1313. Prior to Oct. 1943, published as "Williams River
near Alamo." Oct. 1943 to Sept. 1967, published as "Bill Williams River near Alamo."
REVISED RECORDS.--WSP 1213: 1939(M). 1941(P). WDR AZ–89–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 967 ft above sea level, from construction data. Prior to Apr. 9, 1968, at site 1.7 mi upstream at datum 1,002.95 ft above
sea level.
REMARKS.--Records good. Diversions above station for irrigation of about 9,100 acres, mostly by pumping from ground water. Flow regulated by Alamo Lake, beginning
Mar. 2, 1969. Temporary storage and slight regulation of releases through uncontrolled rectangular conduit through Alamo Dam June 23, 1968, to Mar. 27, 1969. Alamo
Lake is formed by an earthfill and rockfill dam, completed in 1968. Total capacity of lake is 1,043,000 acre-ft. See table below for monthend contents.
EXTREMES FOR PERIOD OF RECORD.--1940–68: Maximum discharge, 65,100 ft3/s Aug. 29, 1951, gage height, 30.8 ft, site and datum then in use; minimum daily, 1.1 ft3/s
Sept. 4, 1958.
1969–2002: Maximum discharge, 6,980 ft3/s Mar. 16, 22, 1993, gage height, unknown as weir had washed out; no flow at times in most years.
EXTREMES OUTSIDE PERIOD OF RECORD.--The history of floods that occurred prior to Oct. 1939 is published in WSP 1683. The peak discharges have been correlated with
those for Bill Williams River at Planet. The peak discharge for Feb. 1937 has been determined as 105,000 ft3/s at a stage of 46 ft, site and datum then in use, from rating
curve extended above 50,000 ft3/s on basis of slope-area measurement for flood of Sept. 6, 1939, at a stage of 39.6 ft, discharge of 86,000 ft 3/s and known stable
high-water control.
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 40 ft3/s Apr.13–16, Apr. 18–June 12, June 14–July 17. MInimum daily discharge, 10 ft3/s on Mar. 5.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
30
22
21
21
20
20
20
20
20
20
25
26
26
26
26
26
27
26
27
27
26
26
26
26
26
15
14
13
12
10
26
26
26
26
26
40
40
40
40
40
40
40
40
40
39
40
40
40
40
40
26
26
26
26
26
26
26
26
26
26
6
7
8
9
10
20
20
20
20
20
20
20
20
20
20
26
26
26
26
26
26
27
27
26
27
27
27
27
27
26
11
11
14
26
26
26
26
26
26
26
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
26
26
26
26
26
26
26
26
26
26
11
12
13
14
15
20
20
20
20
20
20
20
20
20
20
26
26
26
26
26
27
26
27
27
27
26
26
26
26
26
26
26
26
26
26
26
31
40
40
40
40
40
40
40
40
40
40
39
40
40
40
40
40
40
40
26
26
26
26
26
26
26
26
26
24
16
17
18
19
20
18
20
19
20
19
20
20
20
20
22
26
26
26
26
26
27
27
27
27
27
26
26
26
27
26
26
26
25
26
26
40
34
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
31
26
26
26
26
26
26
26
26
26
26
26
26
21
22
23
24
25
20
20
20
20
20
24
24
24
24
24
26
26
26
27
26
26
26
27
27
27
26
26
26
26
26
26
26
26
26
26
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
27
28
29
30
31
20
20
20
20
20
20
24
24
24
24
24
---
26
27
26
26
27
26
27
27
27
27
27
26
26
29
18
-------
26
26
26
26
26
26
40
40
40
40
40
---
40
40
40
40
40
40
40
40
40
40
40
---
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
---
630
20.32
30
18
1250
101300
-2500
642
21.40
24
20
1270
99300
-2000
808
26.06
27
25
1600
97400
-1900
829
26.74
27
26
1640
95700
-1700
728
26.00
29
18
1440
94400
-1300
697
22.48
26
10
1380
93100
-1300
1031
34.37
40
26
2040
90500
-2600
1240
40.00
40
40
2460
87200
-3300
1198
39.93
40
39
2380
83300
-3900
1049
33.84
40
26
2080
79900
-3400
806
26.00
26
26
1600
76800
-3100
778
25.93
26
24
1540
74200
-2600
MEAN 30.15
MEAN 28.59
MAX 272
MAX 40
TOTAL
MEAN
MAX
MIN
AC-FT
(*)
(**)
CAL YR 2001
WTR YR 2002
TOTAL 11003.78
TOTAL
10436
MIN 0.00
MIN 10
AC-FT 21830 (**) +6300
AC-FT 20700 (**) -29600
(*) Contents, in acre-feet, at end of month in Alamo Lake, furnished by Corps of Engineers.
(**) Change in contents, in acre-feet
127
BILL WILLIAMS RIVER BASIN
09426600 BILL WILLIAMS RIVER AT MINERAL WASH, NEAR PLANET, AZ
WATER-QUALITY RECORDS
LOCATION.--Lat 34° 15’18", long 114° 00’32", in SE1/4NE1/4 sec. 34, T.11 N., R.17 W., on boundary between Mohave and La Paz Counties, Hydrologic Unit 15030204, at
convergence with Mineral Wash, 4 mi west of Planet Wash, 4 mi west of Planet Ranch, 6.1 mi upstream from waterline of Havasu Lake at elevation of 450 ft above sea
level, and approximately 30 mi downstream from Alamo Lake.
DRAINAGE AREA.--5,320 mi2, of which 686 mi2 is below Alamo Dam, and 10 mi2 is noncontributing.
PERIOD OF RECORD.--Dec. 1928 to Sept. 1940, Nov. 1942 to Oct. 1946, Jan. 1970 to Jan. 1972, Oct. 1974 to current year.
REVISED RECORDS.--WDR AZ–91–1: Drainage area.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Oct. 1974 to Sept. 1981.
WATER TEMPERATURES: Oct. 1974 to Sept. 1981.
REMARKS.--Streamflow ungaged.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
JAN
28...
MAY
15...
Date
JAN
28...
MAY
15...
Date
JAN
28...
MAY
15...
Date
JAN
28...
MAY
15...
Date
JAN
28...
MAY
15...
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
993
6.8
49
7.9
1060
17.0
12.6
23
250
64.1
21.3
740
5.3
63
7.9
1010
27.0
21.8
3
240
61.4
21.0
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
6.86
3
114
227
275
6.79
3
122
240
290
Time
0930
0900
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
10
3.4
SODIUM
ADSORPTION
RATIO
NITROGEN,
AMMONIA
DISSOLVED
(MG/L
AS N)
(00608)
NITROGEN,AMMONIA +
ORGANIC
DIS.
(MG/L
AS N)
(00623)
.016
E.07
.16
--
.24
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
<.04
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<1
<20
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
.112
-M
141
1.6
31.6
91.1
.85
628
609
135
1.6
31.0
84.9
.84
616
607
NITROGEN,
TOTAL
(MG/L
AS N)
(00600)
PHOSPHATE,
ORTHO,
DISSOLVED
(MG/L
AS PO4)
(00660)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
<.006
--
--
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
81.4
MOLYBDENUM,
DISSOLVED
(UG/L
AS MO)
(01060)
<.06
6.7
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<50
Remark codes used in this report:
< -- Less than
E -- Estimated value
M -- Presence verified, not quantified
k -- Counts outside acceptable range
.24
<2.0
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
331
--
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
.5
<2
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
<1
--
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
<1
<.2
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
.052
--
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
E.02
<.8
<.1
<.8
STRONTIUM,
DISSOLVED
(UG/L
AS SR)
(01080)
888
857
SILICA,
DISSOLVED
(MG/L
AS
SIO2)
(00955)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
<1
<.05
81
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
.27
5
TEMPERATURE
AIR
(DEG C)
(00020)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
.15
6.2
13.0
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
E.002
--
17.8
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
NITRONITRONITROGEN,AMGEN,
GEN,
NITROMONIA + NO2+NO3 NITRITE
GEN,
ORGANIC
DISDISORGANIC
TOTAL
SOLVED
SOLVED
TOTAL
(MG/L
(MG/L
(MG/L
(MG/L
AS N)
AS N)
AS N)
AS N)
(00625) (00631) (00613) (00605)
.07
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PHOSPHORUS
DISSOLVED
(MG/L
AS P)
(00666)
.021
<.06
COBALT,
DISSOLVED
(UG/L
AS CO)
(01035)
.15
<13
VANADIUM,
DISSOLVED
(UG/L
AS V)
(01085)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
7.7
2
<8
--
ORTHOPHOSPHATE,
PHOSDISPHORUS
SOLVED
TOTAL
(MG/L
(MG/L
AS P)
AS P)
(00671) (00665)
.017
E.01
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
.051
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
.6
<10
<10
4.80
--
37
<1
76
E.05
<1.0
URANIUM
NATURAL
DISSOLVED
(UG/L
AS U)
(22703)
E14k
SED.
SUSP.
SIEVE
DIAM.
% FINER
THAN
.062 MM
(70331)
-96
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
E.04
<1
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
LITHIUM
DISSOLVED
(UG/L
AS LI)
(01130)
58.8
62
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
29
.80
37
.34
128
BILL WILLIAMS RIVER BASIN
09426620 BILL WILLIAMS RIVER NEAR PARKER, AZ
LOCATION.--Lat 34° 15'45", long 114° 01'37", in NE1/4SE1/4SE1/4 sec. 28, T.11 N., R.17 W., La Paz County, Hydrologic Unit 15030204, on left bank 1.8 mi downstream from
Mineral Wash and Havasu National Wildlife Refuge boundary, 5.3 mi upstream from mouth, 17 mi northeast of Parker, and approximately 31 mi downstream from
Alamo Dam.
DRAINAGE AREA.--5,337 mi2, of which 703 mi2 is below Alamo Dam and 10 mi2 is noncontributing.
PERIOD OF RECORD.--Oct. 1988 to current year.
REVISED RECORDS.--WDR AZ–91–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 500.00 ft above sea level (Bureau of Reclamation benchmark).
REMARKS.--Records poor. Diversions above station for irrigation, mostly by pumping from ground water. Flow regulated by Alamo Dam.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 6,800 ft3/s Mar. 17–26, 1993; no flow for many days most years.
EXTREMES OUTSIDE PERIOD OF RECORD.--The history of floods that occurred at a former site located about 3 mi upstream is published in WSP 1683, Bill Williams River
at Planet (sta 09426500).
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 46 ft3/s Sept. 7. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.6
2.8
2.8
3.0
3.2
e6.2
e6.3
e6.4
e6.5
e6.6
6.8
6.8
6.8
6.8
6.9
6.6
6.5
6.4
6.5
6.8
6.9
6.5
6.4
6.2
6.1
3.5
3.5
3.4
3.3
3.3
0.28
0.12
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.3
3.4
3.6
3.8
4.0
e6.6
e6.7
e6.8
e6.9
e7.0
6.8
6.8
6.9
6.8
6.6
6.7
6.7
6.7
6.6
6.8
6.1
6.3
6.1
6.1
6.0
3.2
3.0
2.7
2.7
2.4
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
46
3.6
1.9
0.07
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e4.3
e4.4
e4.5
e4.6
e4.7
e7.1
e7.2
e7.3
e7.2
7.2
6.7
6.9
6.8
6.7
6.6
6.9
6.8
6.8
6.8
6.8
5.8
5.5
5.3
4.9
4.3
2.2
2.0
2.0
2.0
1.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e4.8
e4.8
e4.9
e5.0
e5.1
7.0
6.9
6.7
6.8
6.7
6.7
6.7
6.6
6.6
6.5
6.8
6.8
6.9
6.9
6.9
4.0
3.9
3.8
3.8
3.9
1.3
1.3
1.2
1.1
1.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.20
0.85
e5.2
e5.3
e5.4
e5.5
e5.6
6.7
6.7
6.6
6.6
6.7
6.5
6.5
6.6
6.6
6.6
6.8
6.8
6.8
6.9
7.1
3.9
4.1
3.9
3.7
4.1
0.96
1.0
1.0
1.0
1.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
2.0
2.1
2.1
2.3
2.5
---
e5.6
e5.7
e5.8
e5.9
e6.0
e6.1
6.7
6.8
6.8
6.8
6.8
6.7
6.5
6.6
6.6
-------
7.2
7.1
7.2
7.3
6.9
6.8
4.0
3.9
3.8
3.6
3.5
---
0.98
0.97
0.86
0.75
0.52
0.37
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.00
0.000
0.00
0.00
0.00
12.05
0.402
2.5
0.00
24
141.7
4.571
6.1
2.6
281
210.0
6.774
7.3
6.2
417
187.3
6.689
6.9
6.5
372
211.6
6.826
7.3
6.4
420
146.4
4.880
6.9
3.5
290
56.11
1.810
3.5
0.37
111
0.42
0.014
0.28
0.00
0.8
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
51.57
1.719
46
0.00
102
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 1085.26
TOTAL 1017.15
MEAN 2.973
MEAN 2.787
MAX 67
MAX 46
MIN 0.00
MIN 0.00
AC-FT 2150
AC-FT 2020
MAY
129
DIVERSIONS ABOVE PARKER DAM
09426650 CENTRAL ARIZONA PROJECT CANAL AT HAVASU PUMPING PLANT, NEAR PARKER, AZ
LOCATION.--Lat 34° 17'20", long 114° 06'37", in NW1/4NW1/4 sec. 23, T.11 N., R.18 W., La Paz County, Hydrologic Unit 15030204, on left bank of Bill Williams River arm of
Lake Havasu, 2 mi upstream from Parker Dam and 19 mi northeast of Parker.
PERIOD OF RECORD.--Oct. 1984 to current year. Prior to Oct. 1988, published as "CAP Canal Havasu pumping Plant near Parker."
REMARKS.--Figures of daily streamflow shown represent water pumped from Lake Havasu for delivery to the Central Arizona Project.
COOPERATION.--Diversion records furnished by Bureau of Reclamation.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily streamflow, 6,704 acre-ft, May 28, 2001, June 3, 2001; no diversion on many days each year.
STREAMFLOW, DAILY, in ACRE FEET, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
1607
1686
1601
1603
1960
1152
789
869
2309
946
5742
5724
5722
5375
5276
4623
5012
5016
5016
5016
6095
6319
6867
6103
5246
5923
6389
6865
6109
6109
5895
6413
6294
6171
6349
5937
5958
5740
5972
6895
5833
6891
5837
5909
5891
2759
2902
2519
3362
2241
2061
2150
2152
2311
2152
3336
3336
3209
2428
2426
6
7
8
9
10
2319
2317
1256
2317
1632
393
940
2017
2015
2015
5724
5024
5726
5724
5621
5718
5014
5016
5355
5443
5740
5839
5772
6339
6875
6119
6129
6300
6321
6871
6536
6881
6284
6163
5837
5825
5970
5768
5841
5950
5843
5891
5893
6889
5885
2380
2759
2797
3094
2896
2152
2154
2152
2154
2154
2216
2214
2428
2229
2273
11
12
13
14
15
1256
1256
1254
2313
867
3457
3457
3055
2727
4108
5439
5266
4917
5595
5478
5478
5244
5718
5006
5062
6097
6111
6115
6107
6873
5895
6127
6173
6175
6266
6175
6188
6002
6893
6169
5964
6889
5669
5808
5710
5744
5812
5893
5796
6565
2898
2896
2896
3354
2892
2311
3197
3197
3195
3195
2273
1997
1999
1997
2840
16
17
18
19
20
1628
764
458
867
865
5736
5732
5730
5726
5726
5724
5238
5280
5340
5290
5068
4953
4957
5050
5312
6294
6875
6139
6125
6121
6317
6885
6222
6258
6407
6014
6081
6391
5653
6434
5786
5948
5939
6889
5929
6274
5219
6135
5909
5909
2892
2894
2896
2650
2513
3191
3195
3471
3193
3193
1997
1995
1993
2340
2430
21
22
23
24
25
2309
770
770
764
770
4506
6557
5587
5542
5213
5720
5528
5722
5460
5722
5486
5101
5076
5101
5101
6111
6105
6210
6839
6145
6409
6387
6551
6700
6413
6883
6129
6147
5948
5956
5810
5766
5736
5823
5798
5889
6141
6684
3120
2717
3350
2892
2884
2886
2884
3191
3348
3009
3009
3039
2340
3465
2333
1989
1952
26
27
28
29
30
31
1154
1154
2309
1154
1154
770
4322
3931
4122
3842
5603
---
5161
5580
5720
5720
5720
5718
5100
5718
5211
5117
5151
2713
6067
5278
5768
-------
6034
6361
6258
6365
6180
6883
5814
5891
6887
5956
5855
---
6893
6597
5865
5857
5845
5845
2382
2420
3590
3370
4530
---
2932
2930
3348
2323
2017
1980
3011
3473
3275
3328
3340
3332
1944
2097
2087
2085
1983
---
TOTAL
MEAN
MAX
MIN
42904
1384
2319
458
108124
3604
6557
393
170996
5516
5742
4917
157952
5095
5718
2713
172575
6163
6875
5246
196401
6336
6885
5895
186289
6210
6893
5653
186222
6007
6895
5669
160861
5362
6891
2382
86916
2804
3362
1980
88285
2848
3473
2061
70231
2341
3465
1944
CAL YR 2001
WTR YR 2002
TOTAL 1518896.0
TOTAL
1627756
MEAN 4161
MEAN 4460
MAX 6704
MAX 6895
MIN
0.00
MIN 393
130
COLORADO RIVER MAIN STEM
09427500 LAKE HAVASU NEAR PARKER DAM, AZ-CA
LOCATION.--Lat 34° 18'58", long 114° 09'23", in NW1/4SW1/4 sec. 28, T.3 N., R.27 E., San Bernardino meridian, in San Bernardino County, CA, Hydrologic Unit 15030101, at
intake pumping plant for Colorado River aqueduct of Metropolitan Water District of Southern California, 1.8 mi upstream from Parker Dam on Colorado River, and 149 mi
downstream from Hoover Dam.
DRAINAGE AREA.--182,700 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--July 1938 to current year. Published as "Parker Reservoir near Parker Dam" 1938.
REVISED RECORDS.--WRD Ariz. 1975: 1974 (elevation).
GAGE.--Water-stage recorder. Datum of gage is sea level.
REMARKS.--Lake is formed by concrete-arch dam; dam was completed and storage began July 1, 1938. Usable capacity—based on Apr. 1957 re-survey by Bureau of
Reclamation between elevations 430.54 ft and 450.54 ft—619,400 acre-ft between elevations 400.54 ft, sill of regulating gates, and 450.54 ft, top of regulating gates.
Prior to Oct. 1, 1956, different capacity table used. Dead storage, 28,600 acre-ft below elevation 400.54 ft, based on original survey. About 0.07 ft fall indicated between
gage and Parker Dam under normal operating conditions. Drawdown below elevation 440.54 ft not legally permissible except by consent of the Metropolitan Water District
of Southern California or in an emergency affecting the safety of the dam. Lake is used for flood control, power development, regulation of river for irrigation demand, and
as a basin from which water is pumped by Metropolitan Water District of Southern California to Colorado River aqueduct. Figures given herein represent usable contents.
For record of diversion to Colorado River aqueduct, see record for Colorado River aqueduct near Parker Dam elsewhere in this report.
EXTREMES FOR PERIOD OF RECORD.--Maximum storage, 693,000 acre-ft, by temporary use of flashboards, Apr. 18, 1943, June 4, 1953; maximum elevation, 451.23 ft
May 27, 1988, affected by wind; minimum storage, 71,400 acre-ft June 25, 1942, elevation, 412.09 ft.
EXTREMES FOR CURRENT YEAR.--Maximum storage, 601,200 acre-ft May 26, elevation, 449.63 ft, affected by wind; minimum storage, 536,000 acre-ft Nov. 19, elevation,
445.63 ft.
RESERVOIR STORAGE, in (ACRE-FEET), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
568200
566900
567300
574100
576800
574500
573700
570900
566900
564700
548300
547200
545000
544000
546300
549000
548800
550400
552300
552800
553000
551500
549400
549700
551300
562200
562200
562800
564900
566400
588100
588000
585600
592000
590100
588300
594600
599000
600200
596700
595900
593400
592400
594900
594400
587400
588900
587000
590100
588300
570500
569000
568800
569200
566700
560300
560300
562200
560300
566000
6
7
8
9
10
572400
574500
574300
574500
579600
561500
560000
560200
559200
557900
549200
551500
551200
549200
546700
549500
551200
556000
555800
557900
555300
558400
563700
564400
562900
570700
577400
582700
584100
583100
588300
587200
588100
588300
592200
593400
589300
588700
589100
589900
600600
596900
593800
591300
586600
583500
580600
577200
572600
574000
568200
568600
572600
573900
572000
570300
572400
573300
579600
585700
11
12
13
14
15
587200
585700
581000
576000
572200
555600
554700
554500
557900
556800
547000
550800
555300
556800
553400
550600
549700
545800
542500
542900
556900
554200
552700
557500
559400
585000
587000
590500
595500
596300
597100
596700
595100
589300
586600
590700
589700
589900
590700
591800
584700
585800
595300
594200
593000
580800
578700
575300
572600
573000
568400
563700
559400
557500
560700
587200
586300
590300
592300
591300
16
17
18
19
20
567900
565200
569400
569000
566400
553600
548100
540400
536000
541100
550400
549700
548100
549200
552100
546500
551900
552500
551200
550600
561900
560400
560900
561700
558300
595100
593800
594200
593000
592600
582900
581200
588900
588300
587600
599800
598800
597100
593600
592800
592400
594000
592400
593200
596100
569800
568300
573000
572100
571300
557900
557500
557300
558300
558500
588900
578300
571800
570500
569700
21
22
23
24
25
563700
563000
564900
569200
576000
541400
548100
549000
551200
552600
552500
554300
556600
555500
554500
547600
547600
549200
551700
550100
553800
553300
551900
551900
553300
596500
596700
595100
595300
592200
587000
586400
584500
584100
592200
589700
590100
596900
598600
600400
594600
590300
587200
587200
586800
570200
570900
568300
566000
567100
558500
562200
566000
566000
564100
566400
562400
564900
570700
572000
26
27
28
29
30
31
578700
577200
576600
577500
576000
574500
555100
554700
554700
552800
551000
---
554000
554900
555800
557500
557200
551500
548100
546800
545600
547200
548100
552600
548100
552900
560500
-------
592200
589300
596500
596100
592800
592200
590100
589900
588500
587200
586600
---
601200
598800
592000
590300
596100
596900
586200
587400
590100
588300
586600
---
567300
567700
567100
565600
564100
563900
566000
566000
564100
567900
566000
562200
573300
576000
575100
569200
567100
---
MAX
MIN
(**)
587200
563000
+4900
574500
536000
-23500
557500
544000
+500
557900
542500
+1100
564400
548100
+7900
596700
562200
+31700
597100
581200
-5600
601200
588300
+10300
600600
584700
-10300
590100
563900
-22700
573900
557300
-1100
592300
560300
+4300
CAL YR 2001
WTR YR 2002
MAX 610000
MAX 601200
MIN 536000 (**) +1200
MIN 536000 (**) -2500
(**) Change in contents, in acre-feet.
131
COLORADO RIVER MAIN STEM
09427500 LAKE HAVASU NEAR PARKER DAM, AZ-CA—CONTINUED
ELEVATION, in FT (NGVD), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
447.38
447.31
447.33
447.69
447.83
447.71
447.67
447.52
447.31
447.19
446.31
446.25
446.13
446.07
446.20
446.35
446.34
446.43
446.53
446.56
446.57
446.49
446.37
446.39
446.48
447.60
447.69
447.63
447.74
447.82
448.96
448.95
448.83
449.16
449.06
448.97
449.29
449.52
449.58
449.40
449.36
449.23
449.18
449.31
449.28
448.92
449.00
448.90
449.06
448.97
448.04
447.96
447.95
447.97
447.84
447.55
447.51
447.60
447.46
447.80
6
7
8
9
10
447.60
447.71
447.70
447.71
447.98
447.02
446.94
446.95
446.90
446.83
446.36
446.49
446.47
446.36
446.22
446.38
446.47
446.73
446.72
446.83
446.69
446.85
447.14
447.18
447.09
448.05
448.40
448.68
448.75
448.70
448.97
448.91
448.96
448.97
449.17
449.23
449.02
448.99
449.01
449.05
449.60
449.41
449.25
449.12
448.88
448.72
448.57
448.39
448.15
448.22
447.92
447.94
448.15
448.22
448.12
448.03
448.14
448.19
448.52
448.84
11
12
13
14
15
448.38
448.30
448.05
447.79
447.59
446.71
446.66
446.65
446.83
446.77
446.24
446.45
446.69
446.77
446.59
446.44
446.39
446.17
445.99
446.01
446.77
446.63
446.54
446.80
446.91
448.80
448.90
449.08
449.34
449.38
449.42
449.40
449.32
449.02
448.88
449.09
449.04
449.05
449.09
449.15
448.78
448.84
449.33
449.27
449.21
448.58
448.47
448.29
448.15
448.17
447.93
447.68
447.45
447.35
447.52
448.92
448.87
449.08
449.18
449.13
16
17
18
19
20
447.36
447.22
447.44
447.42
447.28
446.60
446.30
445.87
445.63
445.91
446.43
446.39
446.30
446.36
446.52
446.21
446.51
446.54
446.47
446.44
447.04
446.96
446.99
447.03
446.85
449.32
449.25
449.27
449.21
449.19
448.69
448.60
449.00
448.97
448.93
449.56
449.51
449.42
449.24
449.20
449.18
449.26
449.18
449.22
449.37
448.00
447.92
448.17
448.12
448.08
447.37
447.35
447.34
447.39
447.37
449.01
448.45
448.11
448.04
448.00
21
22
23
24
25
447.14
447.10
447.20
447.43
447.79
445.93
446.30
446.35
446.47
446.55
446.54
446.64
446.76
446.70
446.65
446.27
446.27
446.36
446.50
446.41
446.60
446.57
446.50
446.51
446.59
449.39
449.40
449.32
449.33
449.17
448.90
448.87
448.77
448.75
449.17
449.04
449.06
449.41
449.50
449.59
449.29
449.07
448.91
448.91
448.89
448.02
448.06
447.92
447.80
447.86
447.45
447.65
447.75
447.76
447.68
447.82
447.61
447.74
448.05
448.12
26
27
28
29
30
31
447.93
447.85
447.82
447.87
447.79
447.71
446.68
446.66
446.66
446.56
446.46
---
446.62
446.67
446.72
446.81
446.79
446.49
446.30
446.23
446.16
446.25
446.30
446.55
446.29
446.55
446.97
-------
449.17
449.02
449.39
449.37
449.20
449.17
449.06
449.05
448.98
448.91
448.88
---
449.63
449.51
449.16
449.07
449.37
449.41
448.86
448.92
449.06
448.97
448.88
---
447.87
447.89
447.86
447.78
447.70
447.69
447.85
447.83
447.71
447.87
447.78
447.63
448.19
448.33
448.28
447.97
447.86
---
MAX
MIN
448.38
447.10
447.71
445.63
446.81
446.07
446.83
445.99
447.18
446.29
449.40
447.60
449.42
448.60
449.63
448.97
449.60
448.78
449.06
447.69
448.22
447.34
449.18
447.46
CAL YR 2001
WTR YR 2002
MAX 450.07
MAX 449.63
MIN 445.63
MIN 445.63
132
COLORADO RIVER MAIN STEM
09427520 COLORADO RIVER BELOW PARKER DAM, AZ-CA
LOCATION.--Lat 34° 17'44", long 114° 08'22", in NW1/4NW1/4 sec. 3, T.2 N., R.27 E., San Bernardino meridian, in San Bernardino County, CA, Hydrologic Unit 15030104, on
north end of powerplant at Parker Dam, 13 mi northeast of Parker, AZ, and 14 mi upstream from Headgate Rock Dam.
DRAINAGE AREA.--182,700 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--Feb. to Sept. 1934 (gage heights and fragmentary discharge records), Oct. 1934 to current year. Prior to Oct. 1937, published as "near Parker, Ariz."
REVISED RECORDS.--WSP 1313: 1941(M).
GAGE.--Water-stage recorder. Datum of gage is 300.54 ft above sea level. Prior to Oct. 1, 1967, at site 3.8 mi downstream at datum 346.23 ft above sea level.
REMARKS.--No estimated daily discharges. Records good. Flow regulated by Lake Mead since Feb. 1, 1935, by Lake Mohave since Jan. 17, 1950, and by Lake Havasu since
July 1, 1938. Many diversions above station. For record of diversion to Colorado River aqueduct and return flows, see record for Colorado River aqueduct near Parker Dam,
elsewhere in this report.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 42,400 ft3/s Feb. 8, 1937; no flow at Parker Dam for parts of several days in 1942 when gates in dam were
closed. An unregulated discharge of probably less than 1,350 ft3/s occurred Aug. 18, 1934 (lowest unregulated discharge since 1917 and probably since a much earlier date).
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 16,400 ft3/s July 6. Minimum daily discharge, 3,140 ft3/s Jan. 8.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
10500
9950
9940
6940
7900
7150
7900
8830
8320
8320
6970
6480
7120
7030
6440
7310
5860
5420
4740
5210
7470
8470
7960
7510
7430
11500
11700
9800
11200
11200
14700
13200
14100
10400
14600
13200
11800
11800
12600
13300
15100
14200
14400
13100
13400
14600
13800
15200
11800
15300
10200
14600
13100
12900
13800
12300
11600
11200
12800
8770
6
7
8
9
10
10500
8790
9420
8850
8350
8810
8320
6610
7600
8240
5930
6410
6410
6860
6890
6690
4440
3640
5370
4750
7090
7020
7460
8390
8840
10700
9400
10400
10700
11100
13700
13700
13700
13700
12300
13700
14200
13700
12400
13300
9590
14900
14200
14300
14800
16400
15000
16200
16300
15900
13300
12700
10400
11100
12600
9620
11100
10700
8270
7040
11
12
13
14
15
6580
9350
10400
9870
10400
7500
7670
7670
6600
6560
6900
6580
5360
5900
7360
8270
6060
6640
7160
7700
9830
9870
9410
7970
8430
11200
11200
10300
9870
11200
10900
12600
13500
13800
14500
14200
13500
13600
13400
13000
14800
13900
9610
14500
13200
11400
15200
14500
14600
15000
12900
13500
13700
12900
9830
7540
8620
7080
7440
7580
16
17
18
19
20
11000
9880
7120
9330
10400
6610
7590
8190
7110
5530
6360
6360
6810
6360
5400
6140
4700
7070
7490
7000
8820
9420
8970
8840
9180
11600
11200
11200
11500
11300
14800
15400
11300
14400
14100
9810
13300
13200
13200
13300
13100
12700
14900
13200
12600
15200
13200
11200
13500
14400
12700
12600
12700
12700
13300
9190
13200
14100
11400
11900
21
22
23
24
25
9320
9360
8210
7690
6600
7550
5530
7670
7180
7160
5730
4050
4370
5330
5460
7490
7630
6940
5080
7980
9390
9790
9880
9890
12000
9780
10300
12800
11300
13300
13800
14100
14800
14400
11200
14000
13000
9300
11300
11700
14000
14500
13900
13900
14400
13900
13900
14300
15200
15000
12800
10800
7730
12000
12100
13500
13300
11700
10500
10000
26
27
28
29
30
31
7110
8240
8260
7680
8240
8240
7140
7460
6450
6990
6460
---
5330
4430
4320
3940
4890
7290
7490
7060
8510
7020
7440
6510
10800
11500
9750
-------
12200
13500
10000
12900
14400
12600
13500
14400
13600
13700
15400
---
12100
12900
15000
14300
10300
13200
14200
13200
12800
15200
14800
---
15000
14700
14700
14200
14200
13800
10100
10700
12400
10400
12200
12900
9510
9600
11300
11100
10900
---
274420
8852
11000
6580
544300
220720
7357
8830
5530
437800
185070
5970
7360
3940
367100
200810
6478
8510
3640
398300
251380
8978
12000
7020
498600
351350
11330
14400
9400
696900
408300
13610
15400
10400
809900
397610
12830
15000
9300
788700
411400
13710
15200
9590
816000
447600
14440
16400
11200
887800
375660
12120
14600
7730
745100
312860
10430
14100
7040
620600
TOTAL
MEAN
MAX
MIN
AC-FT
CAL YR 2001
WTR YR 2002
TOTAL 3881750
TOTAL 3837180
MEAN 10630
MEAN 10510
MAX 16800
MAX 16400
MIN 3170
MIN 3640
AC-FT 7699000
AC-FT 7611000
133
COLORADO RIVER MAIN STEM
09427520 COLORADO RIVER BELOW PARKER DAM, AZ-CA—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Oct. 1963 to current year.
INSTRUMENTATION.--Water temperature recorder from Feb. 1954 to Aug. 1970. Specific conductance and water temperature recorder from Sept. 1982 to water year 2000.
REMARKS.--Prior to Oct. 1968, published as 09428000.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
14...
JAN
28...
28...
MAY
15...
AUG
21...
Date
NOV
14...
JAN
28...
28...
MAY
15...
AUG
21...
Date
NOV
14...
JAN
28...
28...
MAY
15...
AUG
21...
Date
NOV
14...
JAN
28...
28...
MAY
15...
AUG
21...
Time
Sample
type
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
1000
9
10200
1315
1320
9
7
9060
--
1220
9
18800
1000
9
18300
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
.90
758
7.3
993
--
1.2
1.5
.33
1.7
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
81
8.2
898
20.0
10.4
--
72
--
8.2
--
909
--
740
8.7
100
8.1
747
7.2
88
8.1
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SODIUM
ADSORPTION
RATIO
(00931)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
19.9
160
280
19.0
--
10.4
--
150
--
280
280
926
38.0
20.7
150
280
929
30.0
24.2
160
280
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
TEMPERATURE
AIR
(DEG C)
(00020)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
TEMPERATURE
WATER
(DEG C)
(00010)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
69.0
67.0
27.0
26.0
4.30
2
80.0
129
154
<1
70.0
.3
230
69.0
69.0
68.0
68.0
27.0
27.0
26.0
26.0
4.20
4.20
2
2
82.0
82.0
131
--
157
--
<1
--
72.0
72.0
.3
.3
230
230
69.0
70.0
26.0
26.0
4.20
2
88.0
133
159
<1
76.0
.3
230
69.0
68.0
27.0
26.0
4.30
2
86.0
127
152
<1
76.0
.3
230
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
<1
.80
590
557
E.50
.05
3
3
.80
.81
591
593
562
566
.30
.30
<.01
<.01
1
.83
613
572
.20
3
.83
613
568
.40
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
TOTAL
(MG/L
AS N)
(00600)
NITROGEN,
TOTAL
(MG/L
AS NO3)
(71887)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
.06
.150
--
--
--
<.02
<5
---
.220
.220
---
.52
.52
2.3
2.3
<.02
<.02
6
9
.05
.06
.250
.15
.45
2.0
<.02
9
.02
.03
.190
.38
.59
2.6
<.02
5
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
E2k
E2k
<1
<1
2
2
100
110
<1
<1
116
112
<.5
<1
--
E2k
--
<1
<1
<1
<1
2
2
2
2
100
100
100
100
<1
<1
<1
<1
116
115
115
112
<.5
<.5
E3k
E3k
<1
<1
2
2
100
110
<1
<1
119
120
<.5
E3k
E22k
<1
<1
3
5
110
110
<1
<1
119
119
<.5
134
COLORADO RIVER MAIN STEM
09427520 COLORADO RIVER BELOW PARKER DAM, AZ-CA—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
NOV
14...
JAN
28...
28...
MAY
15...
AUG
21...
Date
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
<.5
<1
<1
<2
<2
<2
74
<2
<2
<1
7
<.10
<.1
<.5
<.5
<1
<1
<1
<1
<2
<2
<2
<2
<2
<2
76
74
<2
<2
<2
<2
<1
<1
6
6
<.10
<.10
<.1
<.1
<.5
<1
<1
<2
<2
<2
32
<2
<2
<1
3
<.10
<.1
<.5
<1
<1
<2
<2
<2
66
<2
<2
<1
9
<.10
<.1
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
NOV
14...
<1
<1
1
JAN
28...
1
<1
<1
28...
2
<1
2
MAY
15...
<1
<1
2
AUG
21...
<1
<1
2
Remark codes used in this report:
< -- Less than
E -- Estimated value
k -- counts outside acceptable range
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
1
<1
<1
940
<2
<2
<2
<2
1
1
<1
<1
<1
<1
990
990
<2
<2
<2
<2
<2
<2
4
<2
2
<1
<1
990
<2
<2
6
5
2
<1
<1
990
<2
<2
<2
<2
135
COLORADO RIVER MAIN STEM
09427520 COLORADO RIVER BELOW PARKER DAM, AZ-CA—CONTINUED
Water-quality measurements in the following table were made as part of the ADEQ Fixed-Station Network Program. The following analyses are quality-assurance samples
processed during the 2001 sampling period and are defined in the introductory text section titled “Water-Quality Control Data”.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Sample
type
Date
Time
NOV
14...
0955
2
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
Date
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
<.02
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
NOV
14...
<1
<2
<2
Remark codes used in this report:
< -- Less than
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
<.03
<.1
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<2
<1
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
<.20
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<1
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
.01
<.020
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
<2
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
<.02
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<3
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
<.5
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
<1
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
<.5
136
DIVERSIONS AND RETURN FLOWS BETWEEN PARKER DAM AND PALO VERDE DAM
09428500 COLORADO RIVER INDIAN RESERVATION MAIN CANAL NEAR PARKER, AZ
LOCATION.--Two gages, lat 34° 10'04", long 114° 16'33", in SE1/4NW1/4 sec. 31, T.10 N., R.19 W., Gila and Salt River meridian, La Paz County, Hydrologic Unit 15030104.
Forebay gage, on left wall of canal intake, 90 ft upstream from diversion gates at Arizona end of Headgate Rock Dam. Tailrace gage, on right bank of canal 250 ft
downstream from gates. Both gages are on Colorado River Indian Reservation 1.7 mi northeast of Parker and 14 mi downstream from Parker Dam.
PERIOD OF RECORD.--Jan. 1915 to current year (prior to Jan. 1937, fiscal year diversions only; Jan. 1937 to Sept. 1954, monthly diversions only).
REVISED RECORDS.--WSP 1513: 1915–36.
GAGE.--Water-stage recorders above and below intake gates to record head, and recorder to show gate openings (Oct. 1, 1972, Nov. 30, 1992), with supplementary tape gages
read daily and at time of each gate change (prior to Oct. 1, 1972, tape gages only). Datum of gages is 350.00 ft, datum in use locally, or 350.51 ft above sea level. Normal
operating level of forebay is 364.3 ft; prior to July 9, l962, normal operating level of forebay was 362.9 ft, datum in use locally. Prior to Oct. 1954, discharge computed by
various methods as described in WSP 1313.
REMARKS.--No estimated daily discharges. Records good. Daily diversions computed on basis of head on intake gates and gate openings. Records show water diverted to
project and surface return flows to Colorado River through two wasteways and two drains; three of these are equipped with water-stage recorders.
COOPERATION.--Log of canal intake gate opening (supplementary record) furnished by Bureau of Indian Affairs.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 1,950 ft3/s July 24, 1992; no flow at times in most years.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
1
2
3
4
5
624
632
744
752
748
693
685
673
550
630
533
533
525
522
498
6
7
8
9
10
654
627
592
686
646
642
556
533
484
392
448
483
416
320
326
11
12
13
14
15
632
569
664
642
555
386
455
497
506
547
16
17
18
19
20
591
605
671
676
616
21
22
23
24
25
26
27
28
29
30
31
TOTAL
MEAN
MAX
MIN
AC-FT
(*)
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
879
731
579
626
674
839
865
822
817
919
920
912
993
994
991
1140
1140
1190
1100
1080
1180
1180
1120
1220
1180
1310
1330
1360
1320
1410
1410
1420
1280
1170
1110
993
1040
1020
1070
1080
0.00
0.00
0.00
0.00
0.00
643
646
586
474
413
898
895
865
795
700
1020
1000
1010
1030
1010
1190
1250
1200
1230
1180
1110
1100
1170
1130
1160
1400
1200
1200
1220
1240
1100
1130
1170
1200
1220
968
721
563
585
628
487
633
560
504
470
0.00
0.00
0.00
0.00
0.00
448
486
554
715
646
639
786
968
833
803
979
1050
1100
1040
1040
1150
1020
1060
1170
1180
1190
1170
1280
1330
1220
1400
1430
1390
1250
1170
1220
1240
1100
1080
1160
521
585
679
737
716
600
521
466
392
386
258
318
300
292
314
0.00
0.00
0.00
0.00
122
648
700
651
649
741
691
709
669
580
356
1060
1030
993
954
819
1250
1220
1230
1230
1180
1140
1080
1160
1270
1340
1120
1100
1260
1300
1310
1300
1240
1130
1060
1190
749
876
768
833
830
543
466
507
511
514
375
264
405
419
386
343
472
478
297
218
336
742
709
869
954
774
819
769
698
717
383
674
827
832
816
642
841
1050
1120
1270
1240
1180
1200
1150
1110
1400
1290
1030
1160
1210
1110
1130
1350
1360
1310
1190
1130
1110
1030
985
604
616
796
793
802
638
602
705
747
708
704
507
578
662
665
630
---
438
584
698
785
657
418
1100
1080
974
903
953
969
832
886
859
-------
969
924
925
936
864
850
1280
1280
1220
1260
1220
---
994
1070
1200
1260
1230
1170
1240
1290
1340
1350
1320
---
1240
1300
1320
1340
1320
1310
1100
1160
1200
1220
1180
1110
814
804
862
895
744
---
19571
631.3
752
466
38820
21190
15485
516.2
693
264
30710
18150
18843
673.0
886
413
37380
15620
24449
788.7
969
356
48490
18330
31128
1038
1280
642
61740
18640
36194
1168
1260
994
71790
21530
36360
1212
1400
1030
72120
23810
39810
1284
1430
1100
78960
24220
36345
1172
1420
985
72090
23810
23692
789.7
1080
521
46990
21380
CAL YR 2001
WTR YR 2002
JAN
578
792
892
744
492
14128 13209.00
455.7
426.1
785
1100
218
0.00
28020
26200
17020
14340
TOTAL 291519.5
TOTAL 309214.00
MEAN 798.7
MEAN 847.2
MAX 1380
MAX 1430
MIN 0.00
MIN 0.00
AC-FT 578200 (*) 243600
AC-FT 613300 (*) 238000
(*) Return surface flow, in acre-feet, to the Colorado River.
137
DIVERSIONS AND RETURN FLOWS BETWEEN PARKER DAM AND PALO VERDE DAM
09429000 PALO VERDE CANAL NEAR BLYTHE, CA
LOCATION.--Lat 33° 43'55", long 114° 30'40", in NW1/4NE1/4 sec. 19, T.5 S., R.24 E., San Bernardino meridian, Riverside County, Hydrologic Unit 15030104, at canal intake
structure on west side of Palo Verde diversion dam, 10 mi northeast of Blythe and 44 mi downstream from Headgate Rock Dam.
PERIOD OF RECORD.--Jan. 1922 to Dec. 1923, Jan. 1925 to current year (prior to Oct. 1950, monthly discharge only).
REVISED RECORD.--WSP 1213: 1946-48.
GAGE.--Water-stage recorders above and below intakes to record head and, since May 18, 1964, recorder to show gate openings. Datum of gage is: Forebay gage, sea level;
tailrace gage, 274.13 ft, sea level. Aug. 7, 1950, to Nov. 30, 1952, water-stage recorder on tailrace and auxiliary recorder 0.5 mi downstream and Dec. 1, 1952, to
Oct. 28, 1957, recording gage above and below former intake structure 0.2 mi upstream, at different datums.
REMARKS.--Records good. Daily diversions computed on basis of head on intake gates and gate openings. Records published herein represent flow diverted from Colorado
River for irrigation. Return flows to Colorado River are measured by 10 wasteways and drains extending throughout the project; 5 of these are equipped with water stage
recorders and Parshall flumes, 3 are equipped with Sparling flowmeters. Return flows have not been subtracted; combined monthly return flows are given in table below.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 2,360 ft3/s July 30,1981; no flow at times.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
1
2
3
4
5
1340
1350
1340
1360
1250
1020
1050
931
734
874
6
7
8
9
10
1030
841
1180
1200
1260
11
12
13
14
15
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
731
629
1120
945
894
0.00
0.00
0.00
0.00
0.00
1070
880
803
1030
1230
1330
1320
1140
1220
1110
1440
1760
1780
1750
1780
1600
1660
1680
1640
1440
2130
1720
1920
1940
1830
2040
2030
1970
1930
1940
2200
2100
2010
1740
2090
1570
1760
1910
1760
1790
944
990
840
958
894
915
991
821
640
941
0.00
0.00
0.00
0.00
0.00
1220
1050
1050
830
726
1370
1390
1210
1130
738
1650
1350
1480
1560
1500
1670
1800
2140
2030
1920
1900
1970
1930
1590
1840
2020
1850
2050
2070
2140
2070
2050
2000
2000
1910
1380
1130
950
691
445
1240
1170
1010
763
1040
796
851
825
918
1120
962
961
811
872
834
320
552
603
767
1140
961
1090
1150
1240
1130
1060
1020
1100
1080
1110
1570
1520
1520
1430
1610
1680
1500
1780
1780
1770
1780
1800
2010
2010
1840
2090
2060
2060
2080
2130
1640
2000
2050
2000
2150
528
663
772
744
709
16
17
18
19
20
1200
1070
1200
1100
1080
1210
819
793
943
942
772
967
1050
1050
1140
1400
1660
1620
1470
1050
1020
889
1150
1100
1310
1130
841
1160
1320
1390
1850
1860
1740
1690
1510
1890
1780
1690
1580
1830
1730
1940
1870
1850
1930
2150
2140
2120
2210
2040
2050
2020
1990
2090
2090
1390
1600
1700
1890
1750
21
22
23
24
25
987
968
1050
1130
1210
932
666
829
826
657
1160
928
605
553
520
1370
1260
1210
1030
930
1310
1250
1150
891
1040
1330
1350
1360
1180
1290
1340
1540
1660
1740
1570
1860
1830
1740
1870
1940
1980
1840
1570
1690
1930
1810
2280
2260
2230
2080
2070
1910
1990
1750
1600
1620
1400
1730
1500
1470
26
27
28
29
30
31
1110
1130
1010
1080
951
1070
928
973
937
940
986
---
1270
1580
1680
1230
182
0.01
885
694
843
925
935
1080
1060
1120
1180
-------
1430
1480
1590
1540
1330
951
1570
1690
1430
1760
1700
---
1620
1750
1740
1680
1850
2130
2160
2340
2180
2020
1830
---
2070
2060
1880
2130
2240
2340
1940
2040
2090
1940
1980
1770
1460
1470
1220
1150
1470
---
TOTAL
MEAN
MAX
MIN
AC-FT
(*)
34720
1120
1360
763
68870
44100
27126
904.2
1210
657
53800
36640
27754.0
895.3
1680
0.01
55050
38240
21744.0
701.4
1660
0.00
43130
31660
29930
1069
1310
726
59370
32300
38000
1226
1590
738
75370
37260
48350
1612
1860
1340
95900
37190
54870
1770
2140
1440
108800
40580
57070
1902
2340
1570
113200
32270
64500
2081
2340
1810
127900
40940
61330
1978
2200
1600
121600
40750
39622
1321
1910
445
78590
40640
CAL YR 2001
WTR YR 2002
DEC
TOTAL 476293.0
TOTAL 505016.0
MEAN 1305
MEAN 1384
MAX 2320
MAX 2340
MIN 0.00
MIN 0.00
(*) Return flow, in acre-feet, to the Colorado River.
AC-FT 944700 (*) 452100
AC-FT 1002000 (*) 457600
138
COLORADO RIVER MAIN STEM
09429100 COLORADO RIVER BELOW PALO VERDE DAM, AZ-CA
LOCATION.--Lat 33° 43'10", long 114° 29'50", in NE1/4 sec. 2, T.4 N., R.22 W., Gila and Salt River meridian, in Riverside County, CA, Hydrologic Unit 15030104 on right bank
1.2 mi downstream from Palo Verde Diversion Dam, 9.5 mi northeast of Blythe, CA and 11 mi upstream from Ehrenberg, AZ.
DRAINAGE AREA.--186,200 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Mar. 1956 to Mar. 1969, Oct. 1988 to current year. If records for the two Colorado River Indian Reservation drains entering below Palo Verde Dam are
subtracted from records for this station, records equivalent to those published 1969–1988 as "Colorado River at Palo Verde Dam" can be obtained.
GAGE.--Water-stage recorder. Datum of gage is 260.00 ft above sea level. Mar. 1956 to Mar. 1969, at site 120 ft upstream at same datum.
REMARKS.--No estimated daily discharges. Records fair. Many diversions above station for irrigation, municipal, and industrial uses. Flow regulated by Lake Mead,
Lake Mohave, and Lake Havasu.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,300 ft3/s Mar. 21, 1958; maximum gage height, 17.94 ft May 4, 1958; minimum daily discharge, 875 ft3/s
Jan. 9, 1995.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum daily discharge, 42,300 ft3/s June 30, 1983.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 14,900 ft3/s May 13 at 0300, gage height, 9.46 ft. Minimum daily discharge, 1,870 ft3/s Jan. 8.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
7510
7680
7030
6950
4960
5750
5380
5570
6510
6210
5210
5470
4980
5650
5070
6160
5870
4930
4340
4290
4880
5780
6520
6370
5600
8140
10300
9920
8440
9610
11500
11700
11600
11100
10100
12000
10200
9670
9730
10900
10700
10800
10700
10600
9600
10500
10300
10200
10500
9240
9420
8200
9920
10100
10000
9720
9640
8610
8390
9630
6
7
8
9
10
6360
8250
7390
7010
5420
6600
6990
6590
5490
6220
5040
4730
5040
5490
5350
4790
5700
1870
5140
4810
5710
5310
5580
6230
7120
9630
9190
8310
9140
9730
11800
12100
11700
11400
10800
10900
11400
10900
10300
10500
9520
7790
10600
10500
10400
11700
11600
12600
11700
12200
10000
9790
9170
7750
8760
6960
7980
9480
9930
7370
11
12
13
14
15
5700
4950
7290
7530
7940
6780
6460
6150
6260
5160
5130
5200
5010
4400
4980
4600
4180
5430
5460
5980
7590
8270
8050
7640
6790
10300
11000
9700
7910
9100
10200
9880
11100
11500
12000
10800
11400
10800
11000
10400
11300
11000
9190
7660
9990
10500
9370
10400
10600
10800
9460
9560
10100
10600
8390
6440
6770
7430
6160
6280
16
17
18
19
20
7890
8180
7300
5440
6960
4690
5030
6010
6750
5510
5560
5220
5160
5470
5140
5750
4260
3590
5190
6050
7130
7910
7620
7430
6830
10200
10400
10200
9970
10300
12200
12900
11200
10600
12100
9680
8000
10200
10500
9930
9670
9370
9960
10100
9940
11100
10800
9450
8510
9910
7120
9160
9230
9370
9340
5770
6740
10900
10000
9440
21
22
23
24
25
7650
7160
6910
6160
5300
4320
6110
4530
5900
6020
4540
4250
2820
3770
4220
5260
5640
5600
5040
3600
7400
7430
8380
8490
8680
9670
8900
10100
10500
10000
12200
12100
12300
12200
11800
10400
10500
9360
7100
8310
8820
10100
10700
10600
10200
10600
10100
10200
10400
11700
9850
9430
8110
8810
9320
9610
11400
10800
10400
7780
26
27
28
29
30
31
5510
5150
5970
6020
5120
5890
5870
5140
5170
4610
5090
---
4320
3860
2410
2890
4590
4380
5750
5760
5560
6530
5170
5270
10500
9190
9850
-------
11200
10700
11200
9100
11900
12600
9380
11800
11400
10500
12700
---
8970
9300
9810
11600
10000
7930
10400
9690
9670
9380
11100
---
11300
11200
11000
10900
10300
10200
8980
7220
7640
8410
7460
9130
7520
7630
7910
8920
8640
---
204580
6599
8250
4950
405800
172870
5762
6990
4320
342900
145350
4689
5650
2410
288300
157570
5083
6530
1870
312500
204280
7296
10500
4880
405200
307360
9915
12600
7910
609600
343860
11460
12900
9380
682000
312490
10080
12000
7100
619800
300050
10000
11300
7660
595100
329880
10640
12600
8510
654300
279800
9026
10600
7120
555000
254250
8475
11400
5770
504300
TOTAL
MEAN
MAX
MIN
AC-FT
CAL YR 2001
WTR YR 2002
TOTAL 2978940
TOTAL 3012340
MEAN 8161
MEAN 8253
MAX 13200
MAX 12900
MIN 1770
MIN 1870
AC-FT 5909000
AC-FT 5975000
139
COLORADO RIVER MAIN STEM
09429490 COLORADO RIVER ABOVE IMPERIAL DAM, AZ-CA
LOCATION.--Lat 32° 52'59", long 114° 27'55", at Imperial Dam. The Arizona end of the dam is in SW1/4NW1/4 sec. 30, T.6 S., R.21 W., Gila and Salt River meridian, Yuma
County, Hydrologic Unit 15030104; the California end is in NW1/4SW1/4 sec. 9, T.15 S., R.24 E., San Bernardino meridian, Imperial County, Hydrologic Unit 15030104.
Imperial Dam is 5 mi upstream from Laguna Dam, 15 mi northeast of Yuma, AZ, 90 mi downstream from Palo Verde Dam, and 147 mi downstream from Parker Dam.
DRAINAGE AREA.--188,500 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--1903–34 (yearly discharge only, published in WSP 1313), July 1934 to current year (monthly discharge only Oct. 1942 to Sept. 1979). Prior to Oct. 1942
published as "near Picacho, Ca." Oct. 1942 to Sept. 1971 published as "at Imperial Dam" (monthly discharge shown as "flow reaching Imperial Dam," listed as supplement
to "flow passing Imperial Dam").
GAGE.--None. This record is synthesized from records of several other stations (see REMARKS). July 13, 1934, to Sept. 30, 1942, water-stage recorder at site 14.5 mi upstream
at datum 167.38 ft above sea level.
REMARKS.--Records show flow of Colorado River reaching Imperial Dam, and are based on combined daily total flow of Colorado River below Imperial Dam (sta 09429500),
All-American Canal near Imperial Dam (sta 09523000), Gila Gravity Main Canal at Imperial Dam (sta 09522500), and diversions to Mittry Lake (sta 09522400). Records for
1903–34 and for Oct. 1942 to Sept. 1960 were computed as combined flow of Colorado River at Yuma (sta 09521000) and the canals diverting at Imperial and Laguna Dams,
less the flow of Gila River near Dome (sta 09520500); for some of these periods drainage and waste return flows and channel losses between the gaging stations and
Imperial Dam were considered, and for other periods they were neglected. Records for Oct. 1960 to Sept. 1979 are based on combined monthly total flow of same stations
on which daily flows are currently based. Records for July 1934 to Sept. 1942 show daily discharge of Colorado River at gaging station near Picacho, CA, water withdrawals,
and diversions for irrigation, municipal, and industrial uses, and return flows from irrigated areas. Diversions to Mittry Lake, which began June 23, 1970, are included in
river records in table below. Additional regulation, beginning Jan. 31, 1966, to equalize supplies for downstream water users, is provided by pumped storage in reservoir
on Senator Wash, about 2 mi upstream from Imperial Dam. Monthend contents of Senator Wash Reservoir—capacity, 13,840 acre-ft—is given in table below.
COOPERATION.--Records of Sparling meter readings of diversion to Mittry Lake furnished by Imperial Irrigation District and contents of Senator Wash Reservoir furnished by
Bureau of Reclamation.
EXTREMES FOR PERIOD OF 1934-2002.--Maximum discharge, 40,800 ft3/s Sept. 5, 1939; minimum, 538 ft3/s Aug. 3, 1934; minimum daily since regulation of Hoover Dam
began, 1,450 ft3/s Feb. 17, 1935.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
8020
7920
8090
8010
7820
6900
6330
6180
5700
6940
5620
5150
5730
5650
5890
3740
5460
5840
5950
5520
6740
5810
5190
6380
6860
9460
9260
9510
10700
9690
11400
12000
12100
12100
11500
10600
11100
11900
10800
9920
9440
8960
10600
11000
10600
10100
10600
10700
10600
10400
10700
10200
9140
8540
9490
7480
8480
8990
8690
8940
6
7
8
9
10
7350
6620
7630
7900
8140
7240
6980
7010
6770
6390
6230
6310
5980
5350
6060
5120
5560
5720
6200
7090
6980
6980
6430
6310
6020
8900
8680
9140
9020
9170
11100
10900
11500
11800
11900
10100
10600
10500
10800
11000
10500
10400
9360
9040
10200
9660
9590
11200
10900
11100
9400
9340
9810
9810
8950
8520
8420
7710
8110
9190
11
12
13
14
15
8230
7840
7040
6370
7840
6290
6750
6870
6960
6720
6080
5890
6330
6130
5320
5820
5620
4980
6110
6180
7620
8190
8160
8170
7680
9380
9400
9890
10100
9630
11800
11200
10200
10000
11200
10600
10700
10900
11300
11100
10300
10400
10600
10700
8840
11400
11500
10600
9590
10700
8110
9400
9820
9710
9730
9140
7530
6910
6980
7010
16
17
18
19
20
7880
8150
8070
7990
7440
6470
6080
5810
6580
6890
4880
5790
6040
6160
6100
6190
6300
6130
5650
4870
7050
7140
7770
8320
8810
8630
9360
9680
10200
10400
11600
12000
12300
12000
11400
10600
10400
9120
9010
9880
8690
9750
9980
10100
10000
10600
10600
10900
10500
9500
9670
9070
8520
9330
9360
7110
7970
7680
7860
8530
21
22
23
24
25
6990
7670
8130
7910
7310
6200
5060
5740
6260
6010
5940
5340
4670
4150
3820
6100
6240
6470
6490
6280
8880
8370
8420
7820
9060
10500
10400
9680
9400
10300
10900
11500
11800
11600
12000
10200
9750
10300
10200
8900
9980
9070
8610
10100
10600
8960
10100
10600
10400
10800
9170
8800
8530
8740
7980
8490
8120
9260
9780
10400
26
27
28
29
30
31
6900
6210
6430
6640
6870
6860
6620
6850
6230
6830
6480
---
4870
5380
5250
5020
4320
3750
5480
4940
6360
6490
6380
6920
8970
8880
9340
-------
10600
10900
11200
10700
9960
10200
11800
11000
9780
11000
11400
---
8010
8970
9660
9850
10000
10100
10600
10100
10300
9180
8690
---
11000
9830
9830
10700
10600
10700
8630
9180
9050
9230
8760
7950
9750
8740
7960
7320
8570
---
232270
7493
8230
6210
460700
6007
861
194140
6471
7240
5060
385100
3719
833
169200
5458
6330
3750
335600
1625
778
182200
5877
7090
3740
361400
2834
799
212350
7584
9340
5190
421200
1752
722
304040
9808
11200
8630
603100
1830
738
342780
11430
12300
9780
679900
7664
833
316870
10220
11900
8010
628500
9884
799
296690
9890
11000
8610
588500
11041
774
324260
10460
11500
8960
643200
7824
799
284120
9165
10700
7950
563600
5138
799
249640
8321
10400
6910
495200
8070
774
TOTAL
MEAN
MAX
MIN
AC-FT
(*)
(**)
CAL YR 2001
WTR YR 2002
TOTAL 3073980
TOTAL 3108560
MEAN 8422
MEAN 8517
MAX 12500
MAX 12300
MIN 3750
MIN 3740
AC-FT 6097000 (**) 10420
AC-FT 6166000 (**) 9510
(*) Monthend contents, in acre-feet, for Senator Wash Reservoir.
(**) Diversion, in acre-feet, to Mittry Lake (09522400).
140
COLORADO RIVER MAIN STEM
09429490 COLORADO RIVER ABOVE IMPERIAL DAM, AZ-CA—CONTINUED
WATER-QUALITY RECORDS
LOCATION.--Water samples collected above trash racks at All-American Canal headworks at west end of Imperial Dam.
PERIOD OF RECORD.--Aug. 1969 to Sept. 1992, Aug. 1996 to Sept. 2000 and current water year.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE--Oct. 1969 to Sept. 2000..
WATER TEMPERATURES--Oct. 1974 to Sept. 2000.
EXTREMES FOR PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE--Maximum observed, 1,970 microsiemens, Aug. 23, 1977; minimum observed, 866 microsiemens, Sept. 12, 1986.
WATER TEMPERATURES--Maximum observed, 33.0° C, Aug. 20, 1977, Aug. 28, 29, 1981; minimum recorded, 6.5° C Dec. 25, 26, 1990.
INSTRUMENTATION--Streamflow not gaged by USGS.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
AUG
22...
22...
NOV
08...
08...
JAN
23...
23...
MAY
14...
14...
AUG
28...
28...
Date
AUG
22...
22...
NOV
08...
08...
JAN
23...
23...
MAY
14...
14...
AUG
28...
28...
Date
AUG
22...
22...
NOV
08...
08...
JAN
23...
23...
MAY
14...
14...
AUG
28...
28...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
1.7
--
758
--
5.9
--
75
--
8.2
--
1090
--
31.5
--
764
--
7.5
--
89
--
8.3
--
1090
--
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
27.5
--
160
--
310
--
24.0
--
24.0
--
180
--
320
--
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
Time
Sample
type
0900
0905
9
7
7190
--
0830
0835
9
7
A5880
--
0830
0835
9
7
5610
--
2.5
2.3
1020
--
8.6
--
59
--
8.2
--
1080
--
12.0
--
10.9
--
170
--
320
320
0815
0820
9
7
8110
--
8.1
--
754
--
7.5
--
88
--
8.0
--
1080
--
25.0
--
23.0
--
170
--
310
--
0830
0835
9
7
6980
--
2.1
--
751
--
6.2
--
78
--
8.1
--
1110
--
30.0
--
26.4
--
160
--
300
--
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
.67
--
MAGNESIUM,
POTASTOTAL
SIUM,
RECOVDISERABLE
SOLVED
(MG/L
(MG/L
AS MG)
AS K)
(00927) (00935)
SODIUM
ADSORPTION
RATIO
(00931)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
77.8
--
77.8
--
27.9
--
28.5
--
4.88
--
3
--
104
--
149
--
177
--
<1
--
93.5
--
.4
--
268
--
78.0
--
76.0
--
31.0
--
30.0
--
4.50
--
2
--
100
--
147
--
175
--
<1
--
92.0
--
.4
--
270
--
77.0
77.0
76.0
76.0
30.0
30.0
28.0
29.0
4.30
4.40
2
2
100
100
147
--
177
--
<1
--
90.0
91.0
.4
.4
260
260
77.0
--
78.0
--
29.0
--
29.0
--
4.40
--
3
--
110
--
140
--
169
--
<1
--
96.0
--
.4
--
260
--
75.0
--
75.0
--
28.0
--
28.0
--
4.50
--
3
--
110
--
142
--
170
--
<1
--
.4
--
270
--
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
RESIDUE
TOTAL
SOLIDS,
AT 105
DISDEG. C,
SOLVED
SUS(TONS
PENDED
PER
(MG/L)
AC-FT)
(00530) (70303)
12
--
.98
--
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
719
--
664
--
NITROGEN,AMNITROMONIA +
GEN,
ORGANIC AMMONIA
TOTAL
TOTAL
(MG/L
(MG/L
AS N)
AS N)
(00625) (00610)
<.20
--
<.01
--
.170
--
NITROGEN,
TOTAL
(MG/L
AS N)
(00600)
100
--
NITROGEN,
TOTAL
(MG/L
AS NO3)
(71887)
--
--
--
<.02
--
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
8
--
--
---
<.02
--
5
--
5
--
.95
--
701
--
662
--
E.30
--
.02
--
.03
--
.170
--
---
---
5
3
.94
.95
693
699
649
654
.40
.40
.01
.02
.01
.03
.240
.240
.39
.38
.64
.64
2.8
2.8
<.02
<.02
8
5
8
--
.95
--
695
--
660
--
.40
--
<.01
--
---
.230
--
---
.63
--
2.8
--
<.02
--
9
--
8
--
.98
--
720
--
672
--
.30
--
<.01
--
---
.160
--
---
.46
--
2.0
--
<.02
--
7
--
141
COLORADO RIVER MAIN STEM
09429490 COLORADO RIVER ABOVE IMPERIAL DAM, AZ-CA—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
AUG
22...
22...
NOV
08...
08...
JAN
23...
23...
MAY
14...
14...
AUG
28...
28...
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
E13k
--
E13k
--
<1
--
AUG
22...
22...
NOV
08...
08...
JAN
23...
23...
MAY
14...
14...
AUG
28...
28...
Date
AUG
22...
22...
NOV
08...
08...
JAN
23...
23...
MAY
14...
14...
AUG
28...
28...
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
<1
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
2
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
2
--
--
--
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
95.7
--
98.0
--
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
<1
<1
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
148
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
148
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
<.5
--
--
--
--
--
<1
--
E2K
--
<1
--
<1
--
2
--
2
--
95.0
--
92.0
--
<1
--
<1
--
147
--
144
--
<.5
--
E4k
--
E3k
--
<1
<1
<1
<1
2
2
2
2
90.0
90.0
93.0
93.0
<1
<1
<1
<1
140
140
141
139
<.5
<.5
>1
--
E6k
--
<1
--
<1
--
2
--
2
--
100
--
110
--
<1
--
<1
--
149
--
150
--
<.5
--
23
--
<1
--
<1
--
3
--
5
--
110
--
110
--
<1
--
<1
--
153
--
157
--
<.5
--
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
<2
<2
E15k
--
Date
Remark
< -> -E -k --
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
<.5
--
<1
--
<.5
--
<1
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
<2
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
222
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
<2
<2
3
29
<.10
<.1
--
--
--
--
--
--
--
--
--
<1
--
<1
--
<2
--
<2
--
<2
--
135
--
<2
--
<2
--
2
--
19
--
<.10
--
<.1
--
<.5
<.5
<1
<1
<1
<1
<2
<2
<2
<2
<2
<2
143
143
<2
<2
<2
<2
3
3
22
22
<.10
<.10
<.1
<.1
<.5
--
<1
--
<1
--
<2
--
<2
--
<2
--
233
--
<2
--
<2
--
2
--
32
--
<.10
--
<.1
--
<.5
--
<1
--
<1
--
<2
--
<2
--
<2
--
126
--
<2
--
<2
--
2
--
19
--
<.10
--
<.1
--
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
<2
--
<2
--
<1
-<1
--
<1
--
<1
--
<1
--
<1
--
2
2
1
-<1
--
<1
<1
1
--
<1
--
<1
--
1100
--
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
<2
--
--
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
<2
--
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
14
15
--
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
272
--
1
--
<1
--
<1
--
1140
--
<2
--
<2
--
<2
--
<2
--
8.0
9.0
---
1
1
1
1
<1
<1
<1
<1
1080
1080
<2
<2
<2
<2
<2
<2
<2
<2
9.0
8.0
136
--
1
--
2
--
2
--
<1
--
<1
--
1100
--
<2
--
<2
--
4
--
2
--
21
17
460
--
3
--
2
--
2
--
<1
--
<1
--
1110
--
<2
--
<2
--
<2
--
<2
--
25
21
---
codes used in this report:
Less than
Greater than
Estimated value
Counts outside acceptable range
142
COLORADO RIVER MAIN STEM
09429500 COLORADO RIVER BELOW IMPERIAL DAM, AZ-CA
LOCATION.--Forebay gage: Lat 32° 52'59", long 114° 27'57", in NW1/4SW1/4 sec. 9, T.15 S., R.24 E., San Bernardino meridian, in Imperial County, CA, Hydrologic Unit
15030107, near All-American Canal headworks at east (revised) end of Imperial Dam, 5 mi upstream from Laguna Dam, 15 mi northeast of Yuma, AZ, 90 mi downstream
from Palo Verde Dam, and 147 mi downstream from Parker Dam.
DRAINAGE AREA.--188,500 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Oct. 1960 to current year. Prior to Oct. 1971 published as "at Imperial Dam." Records of flow reaching Imperial Dam, formerly published with this
station, are now published separately as sta 09429490, "Colorado River above Imperial Dam."
GAGE.--Water-stage recorder in forebay, 12 calibrated gates on California sluiceway, 8 calibrated gates on Gila sluiceway, and calibrated manometer on each discharge pipe
from desilting basin. Datum of forebay gage is 162.00 ft, U.S. Bureau of Reclamation datum. Prior to Aug. 21, 1991, forebay gage located at west end of Imperial Dam at
same datum.
REMARKS.--No estimated daily discharges. Records good. Records of daily discharge show flow of Colorado River passing Imperial Dam, and include water released to river
through California and Gila sluiceways, sludge from desilting basins returned to river, and leakage through dam. For records of flow reaching Imperial Dam see
sta 09429490. Flow of Colorado Rivers regulated by many reservoirs, principally Lake Mead, since 1935. Many diversions from Colorado River and tributaries above station.
Diversion to Mittry Lake and monthend contents of Senator Wash Reservoir also are published with sta 09429490.
COOPERATION.--Records of gate openings and sludge return flow from disilting basins furnished by Imperial Irrigation District.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 30,200 ft3/s Aug. 18 and 19, 1983. Minimum daily discharge, 27 ft3/s Dec. 15–18, 1969.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
561
561
688
399
290
300
300
300
396
400
300
300
300
300
300
300
300
300
443
347
300
300
394
300
300
420
951
2250
3440
2270
794
794
794
794
875
400
840
2130
2000
1800
400
782
917
1560
683
400
659
429
400
400
380
380
380
482
380
397
405
547
466
405
6
7
8
9
10
375
357
300
488
546
488
300
300
300
300
300
300
300
300
300
325
326
327
300
300
300
300
300
300
300
1190
1160
2110
2790
3580
1310
1670
826
783
785
425
400
400
610
819
400
400
400
400
400
400
400
400
400
400
380
381
770
422
380
627
1460
1590
1040
1690
11
12
13
14
15
300
300
300
300
300
768
395
464
366
352
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
1750
1160
462
400
510
778
766
774
951
806
1630
2960
1510
1600
1350
400
400
831
1160
422
538
813
614
438
413
380
380
380
380
547
2250
542
466
1210
1430
16
17
18
19
20
300
300
318
529
1030
415
300
300
300
408
300
300
300
300
300
300
300
300
300
300
361
989
543
461
300
408
1860
983
786
802
640
524
400
400
745
497
561
400
1230
757
432
624
428
400
400
400
400
585
400
400
380
380
380
380
380
380
380
380
380
380
21
22
23
24
25
1150
449
1100
935
532
441
527
447
908
1050
300
300
300
300
358
300
300
300
300
300
300
300
420
420
420
799
799
801
802
801
833
526
449
400
400
788
524
1130
1260
1400
400
400
400
400
400
400
400
400
400
400
380
380
505
1230
1180
380
447
380
654
591
26
27
28
29
30
31
479
387
1100
300
300
300
992
1180
300
300
300
---
300
300
300
300
300
300
300
300
300
404
300
300
420
420
420
-------
634
400
400
400
517
802
400
735
400
400
400
---
999
401
400
400
400
400
400
400
400
400
535
---
400
416
963
400
400
566
453
780
540
380
380
380
480
380
380
380
380
---
TOTAL
MEAN
MAX
MIN
AC-FT
15574
502.4
1150
290
30890
13897
463.2
1180
300
27560
9358
301.9
358
300
18560
9672
312.0
443
300
19180
10368
370.3
989
300
20560
36437
1175
3580
400
72270
21152
705.1
1670
400
41950
30421
981.3
2960
400
60340
15974
532.5
1560
400
31680
14434
465.6
963
400
28630
14890
480.3
1230
380
29530
20877
695.9
2250
380
41410
CAL YR 2001
WTR YR 2002
TOTAL 215437
TOTAL 213054
MEAN 590.2
MEAN 583.7
MAX 2970
MAX 3580
MIN 270
MIN 290
AC-FT 427300
AC-FT 422600
143
COLORADO RIVER MAIN STEM
09429600 COLORADO RIVER BELOW LAGUNA DAM, AZ-CA
LOCATION.--Lat 32° 48'44", long 114° 30'51", in SE1/4NE1/4 sec. 35, T.15 S., R.24 E., San Bernardino meridian, in Imperial County, CA, Hydrologic Unit 15030107, on right bank
1.4 mi downstream from Laguna Dam, 2.8 mi northeast of Bard, CA, and 10 mi northeast of Yuma, AZ.
DRAINAGE AREA.--188,600 mi2, approximately, including 3,959 mi2 in Great Divide basin in southern Wyoming, which is noncontributing.
PERIOD OF RECORD.--Dec. 1971 to current year.
GAGE.--Water-stage recorder. Datum of gage is 120.81 ft above sea level (Bureau of Reclamation benchmark).
REMARKS.--No estimated daily discharges. Records fair. Natural flow of Colorado River at this point is affected by transmountain diversions, storage reservoirs, power
developments, ground-water withdrawals, diversions for irrigation, municipal, and industrial uses, and return flows from irrigated areas. Flow past station consists mainly
of water released through Imperial Dam, sludge from the desilting basins at Imperial Dam, seepage through Imperial Dam, and seepage from the All-American Canal and
the Gila Gravity Main Canal.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 30,900 ft3/s Aug. 19, 1983; minimum daily, 71 ft3/s May 29, 1973.
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 4,390 ft3/s Mar.10. Minimum daily discharge, 256 ft3/s July 7.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
553
550
556
712
527
426
403
392
390
414
433
413
401
390
371
350
347
345
349
368
319
317
317
327
324
402
457
1680
3340
3220
716
740
742
747
786
786
776
1620
1850
1670
734
768
904
1420
1080
505
573
661
759
622
345
400
401
405
424
444
470
509
509
517
6
7
8
9
10
482
471
477
443
521
433
439
418
403
381
365
356
336
337
345
367
361
354
349
335
321
320
316
311
310
1480
1990
2790
3440
4390
1180
1450
1060
849
862
1230
937
900
875
961
725
663
612
563
513
366
256
658
535
444
447
481
529
586
563
529
976
1960
1290
1890
11
12
13
14
15
511
452
412
392
378
399
495
510
453
449
345
347
349
354
352
328
328
326
323
318
312
312
311
314
315
2410
1450
747
500
492
872
891
906
1060
1080
1430
2440
1760
1570
1450
464
417
449
1210
532
458
577
471
465
608
540
517
499
488
518
3170
944
498
960
1810
16
17
18
19
20
375
376
373
407
632
450
440
422
403
401
358
361
363
364
364
320
320
317
315
313
323
440
636
522
407
495
1370
1870
1140
725
911
720
646
785
857
1140
1090
1020
1000
1190
415
469
616
740
554
635
470
457
509
448
572
470
454
438
448
660
697
533
435
422
21
22
23
24
25
1160
822
955
1140
868
386
428
437
832
1120
367
362
363
366
367
315
319
312
311
317
373
367
374
383
394
713
713
716
725
727
915
854
800
767
761
1140
1090
1070
1200
1490
372
269
297
314
327
428
424
421
418
415
449
449
462
831
1500
383
395
426
451
436
26
27
28
29
30
31
548
489
947
558
467
448
981
1570
386
337
403
---
373
365
359
355
346
341
314
315
314
322
326
322
680
583
405
-------
669
495
487
486
488
644
755
782
801
806
968
---
1150
1110
981
874
839
775
339
348
374
400
442
---
413
418
555
620
603
421
843
607
707
692
573
435
465
412
410
408
408
---
18002
580.7
1160
373
35710
15401
513.4
1570
337
30550
11268
363.5
433
336
22350
10220
329.7
368
311
20270
10633
379.8
680
310
21090
41251
1331
4390
402
81820
26069
869.0
1450
646
51710
37414
1207
2440
775
74210
17330
577.7
1420
269
34370
15613
503.6
759
256
30970
17073
550.7
1500
345
33860
23417
780.6
3170
383
46450
TOTAL
MEAN
MAX
MIN
AC-FT
CAL YR 2001
WTR YR 2002
TOTAL 224799
TOTAL 243691
MEAN 615.9
MEAN 667.6
MAX 3560
MAX 4390
MIN 331
MIN 256
AC-FT 445900
AC-FT 483400
144
GILA RIVER BASIN
09432000 GILA RIVER BELOW BLUE CREEK, NEAR VIRDEN, NM
LOCATION.--Lat 32° 38'53", long 108° 50'43", in SE1/4SW1/4 sec. 18, T.19 S., R.19 W., Grant County, Hydrologic Unit 15040002, on left bank at head of canyon, 1.4 mi
downstream from Blue Creek, 10 mi east of Virden, and 16 mi upstream from New Mexico-Arizona State line.
DRAINAGE AREA.--3,203 mi2, excluding Animas River basin.
PERIOD OF RECORD.--May to Nov. 1914, Mar. to Sept. 1915, July 1927 to current year. July 1927 to May 1931 monthly discharge only, published in WSP 1313, computed
as sum of flow at Virden Bridge, 9 mi downstream, and in Sunset Canal. Published as "Gila River near Duncan, Ariz.," 1914–15 and as "Gila River at Fuller's Ranch, near
Duncan, Ariz.," 1931–38.
REVISED RECORDS.--WSP 1283: Drainage area. WSP 1313: 1929, 1931–32(M).
GAGE.--Water-stage recorder. Elevation of gage is 3,875 ft above sea level, from river-profile map. May 11, 1914, to Sept. 30, 1915, at site 6 mi downstream, 1,000 ft upstream
from intake of Sunset Canal. June 1 to July 7, 1931, nonrecording gage at present site and datum. Since Apr. 18, 1980, supplementary gage on left bank 800 ft downstream
at same datum. Since June 1980, crest-stage gages at supplementary gage site. Since Nov. 1990, water-stage recorder at supplementary gage.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Station is above all Duncan Valley diversions. Diversions for irrigation of about 6,200 acres
above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 58,700 ft3/s Dec. 19, 1978, gage height, 29.00 ft, from rating curve extended above 38,000 ft3/s on basis of
slope-area measurement of peak flow; minimum, 1 ft3/s July 14, 1934.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,900 ft3/s and (or) maximum (*):
Date
Sept. 12 .........
Time
Discharge (ft3/s)
0615
*6,830
Gage height (ft)
*8.95
Minimum daily discharge, 3.0 July 13–14.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUL
AUG
SEP
1
2
3
4
5
56
53
52
55
55
e71
e73
e74
e72
e68
e91
e92
e89
e84
e87
e97
e98
e99
e97
e99
e91
e91
e92
e93
e97
e66
e66
e67
e67
e68
70
66
66
67
68
e41
38
37
37
38
14
13
12
11
e10
3.2
3.2
3.2
3.2
3.2
e70
e70
e120
e105
e125
26
28
28
25
25
6
7
8
9
10
56
55
51
52
56
e67
e72
e76
e78
e78
e86
e85
e84
e93
e94
e97
e98
e98
e97
e96
e98
e99
e98
e97
e96
69
69
67
68
70
67
67
64
64
63
40
39
38
e37
e36
e10
e9.9
e9.8
e9.7
e9.5
3.2
3.2
3.4
3.7
6.6
e150
e215
e130
e200
e250
28
30
35
70
57
11
12
13
14
15
58
58
60
63
64
e79
e77
e74
e75
e79
e95
e98
e99
e99
e100
e94
e88
e86
e86
e86
e95
e95
e93
e94
e93
63
59
63
64
64
60
59
61
59
59
e35
e35
e34
e33
e32
e8.9
e8.7
e8.5
8.1
7.4
4.2
3.2
3.0
3.0
27
e140
e115
e90
e75
e55
612
2360
1090
647
411
16
17
18
19
20
63
62
61
66
68
e81
e82
e84
e84
e82
e100
e97
e97
e97
e96
e84
e83
e82
e80
e84
e92
e89
e84
e84
e83
67
69
69
65
59
59
58
54
54
53
32
31
30
28
e27
6.7
e6.0
e5.0
e4.5
e4.5
36
49
51
58
44
e50
e50
e45
e40
e40
313
248
215
182
155
21
22
23
24
25
62
59
63
66
65
e81
e83
e87
e88
e89
e98
e98
e96
e97
e97
e88
e87
e81
e79
e80
e83
e82
e80
e77
e73
59
58
58
60
65
55
53
51
49
50
e26
e25
e24
e23
e22
e4.5
e4.0
e4.0
e4.0
e3.5
39
56
51
37
36
e35
e30
e30
e30
e30
141
127
113
102
93
26
27
28
29
30
31
e65
e68
e70
e66
e63
e64
e87
e85
e89
e94
e92
---
e96
e96
e96
e96
e95
e94
e81
e82
e85
e87
e88
e89
e69
e63
e65
-------
63
64
65
67
67
69
49
50
50
e45
e43
---
e21
e20
e19
e17
16
16
e3.3
3.3
3.2
3.3
3.3
---
31
45
213
e300
e115
e80
e30
e30
e40
28
25
24
82
74
68
63
59
---
1875
60.48
70
51
3720
0.02
0.02
2401
80.03
94
67
4760
0.02
0.03
2922
94.26
100
84
5800
0.03
0.03
2756
88.90
99
79
5470
0.03
0.03
2446
87.36
99
63
4850
0.03
0.03
2014
64.97
70
58
3990
0.02
0.02
1733
57.77
70
43
3440
0.02
0.02
927
29.90
41
16
1840
0.01
0.01
213.6
7.120
14
3.2
424
0.00
0.00
1317.5
42.50
300
3.0
2610
0.01
0.02
2467
79.58
250
24
4890
0.02
0.03
7507
250.2
2360
25
14890
0.08
0.09
50.10
298
1992
4.43
1956
74.99
366
1986
4.85
1951
201.8
1164
1988
9.35
1951
202.1
1507
1975
4.89
1953
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
JUN
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1932 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
161.2
1667
1973
5.39
1957
138.5
1040
1995
34.9
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
246.3
2485
1979
47.6
1957
304.8
4158
1993
64.0
1981
351.0
1752
1993
61.1
1971
FOR 2001 CALENDAR YEAR
421.5
1464
1973
45.1
1971
267.4
1138
1973
27.7
1955
148.6
977
1992
13.5
1956
FOR 2002 WATER YEAR
47442
130.0
28579.1
78.30
620
Aug 16
14
Jun 18
15
Jun 13
94100
0.041
0.55
276
101
39
2360
Sep 12
3.0
Jul 13
3.2
Jul 1
56690
0.024
0.33
98
66
9.8
WATER YEARS 1932 - 2002
208.8
746
1993
43.1
1956
33100
Dec 19 1978
1.7
Jul 11 1956
2.0
Sep 26 1956
151300
0.065
0.89
444
93
22
145
GILA RIVER BASIN
09442000 GILA RIVER NEAR CLIFTON, AZ
LOCATION.--Lat 32° 57'57", long 109° 18'35", in NE1/4SE1/4 sec. 25, T.5 S., R.29 E., Greenlee County, Hydrologic Unit 15040002, on right bank 60 ft upstream from bridge on
county road, 6 mi upstream from San Francisco River, and 6 mi south of Clifton.
DRAINAGE AREA.--4,010 mi2.
PERIOD OF RECORD.--Nov. 1910 to July 1918 (published as "at Guthrie"), Oct. 1927 to Sept. 1989, Oct. 1989 to current year, operated as a crest-stage partial-record station,
Oct. 1995 to Sept. 1996. Monthly discharge only for some periods, published in WSP 1313.
REVISED RECORDS.--WSP 1059: 1911–12, 1915, 1917. WSP 1179: 1929(M), 1934(M). WSP 1283: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,336.38 ft above sea level. Nov. 6, 1910, to July 11, 1918, nonrecording gage or water-stage recorder at two sites about 6 mi
upstream at Guthrie at different datums. Mar. 1928 to June 1948 water-stage recorder at present site at datum 0.91 ft lower. June 1948 to Oct. 17, 1967, water-stage
recorder at site 0.2 mi upstream at datum 3.12 ft higher. Oct. 18, 1967, to June 23, 1974, Apr. 10, 1978, to Feb. 6, 1979, at site 500 ft downstream at datum 0.44 ft higher.
June 24, 1974, to Apr. 9, 1978, at present site and datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Diversions for irrigation of about 14,300 acres above station. Station is below all Duncan
Valley diversions.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 57,000 ft3/s Dec. 19, 1978, gage height, 23.80 ft, from rating curve extended above 28,000 ft3/s; minimum daily,
3.7 ft3/s July 27, 1987.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,500 ft3/s and (or) maximum (*):
Date
Aug. 7 ...........
Minimum daily discharge, 16 ft
Time
Discharge (ft3/s)
unknown
*4,020
Gage height (ft)
*7.63
3/s July 7–8; July 19–20.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
e45
e40
e40
e35
e30
40
40
41
41
43
66
65
65
66
64
85
85
85
86
86
81
82
85
86
87
61
54
52
49
48
37
38
37
37
34
33
33
33
31
31
24
24
23
23
23
19
18
19
19
20
e50
36
76
e665
244
38
44
35
28
28
6
7
8
9
10
27
27
27
28
28
47
44
43
45
49
61
62
61
61
62
86
86
88
89
90
87
88
87
87
87
53
54
54
49
46
34
33
33
34
33
31
31
31
31
30
23
23
23
23
24
19
16
16
18
20
182
e773
188
189
235
26
25
25
33
50
11
12
13
14
15
27
28
30
32
33
52
55
56
56
55
66
70
74
78
82
86
85
84
83
77
86
87
82
81
79
44
43
40
38
37
33
32
32
31
31
31
30
30
30
30
25
25
23
23
21
23
19
18
17
26
272
196
148
121
102
162
e594
e820
525
301
16
17
18
19
20
36
37
37
35
36
56
58
60
60
61
85
85
85
85
86
75
72
68
69
68
79
78
77
77
75
37
37
39
40
42
32
33
33
33
32
30
30
29
29
30
21
22
22
22
23
19
18
17
16
16
87
e135
e45
e35
34
e185
e130
e105
e85
e65
21
22
23
24
25
39
41
40
37
38
62
63
63
65
67
86
85
86
86
85
68
73
77
76
77
75
75
74
71
69
41
40
39
38
38
32
32
32
32
31
28
27
26
25
25
21
18
17
18
18
30
32
58
34
34
34
33
33
31
31
e60
e50
e45
e45
e40
26
27
28
29
30
31
38
38
38
40
42
42
66
65
65
63
65
---
85
87
87
87
87
86
78
78
77
79
79
80
69
67
65
-------
39
41
41
39
38
38
32
32
32
32
32
---
25
26
25
25
25
24
19
19
19
19
20
---
33
32
e334
e100
e105
e75
30
29
29
30
28
28
e40
e35
32
30
28
---
1091
35.19
45
27
2160
1646
54.87
67
40
3260
2376
76.65
87
61
4710
2475
79.84
90
68
4910
2223
79.39
88
65
4410
1349
43.52
61
37
2680
991
33.03
38
31
1970
895
28.87
33
24
1780
648
21.60
25
17
1290
1240
40.00
334
16
2460
4149
133.8
773
28
8230
3709
123.6
820
25
7360
40.16
171
1973
9.37
1959
121.6
934
1914
12.9
1963
226.3
898
1988
16.8
1960
198.5
1208
1975
8.24
1956
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1911 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
182.8
1754
1973
8.66
1957
120.3
806
2001
10.7
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
220.7
2389
1915
17.3
1957
240.2
1355
1916
42.5
1954
298.1
1666
1915
24.0
1957
FOR 2001 CALENDAR YEAR
35586
97.50
285
27
27
70580
213
78
32
379.2
1765
1915
20.5
1957
232.5
1688
1915
12.3
1957
111.7
874
1973
11.7
1954
FOR 2002 WATER YEAR
22792
62.44
Mar 13
Jul 23
Oct 6
820
16
18
45210
87
40
23
Sep 13
Jul 7
Jul 2
WATER YEARS 1911 - 2002
201.5
930
42.5
27100
3.7
7.0
146000
440
78
18
1915
1951
Dec 20 1978
Jul 27 1987
Sep 29 1957
146
GILA RIVER BASIN
09444200 BLUE RIVER NEAR CLIFTON, AZ
LOCATION.--Lat 33° 17'27", long 109° 11'44", in sec. 6, T.2 S., R.31 E. (unsurveyed), Greenlee County, Hydrologic Unit 15040004, in Apache National Forest, on right bank
0.1 mi downstream from county road crossing, 0.9 mi upstream from Clear Creek, 8 mi upstream from mouth, and 17 mi northeast of Clifton.
DRAINAGE AREA.--506 mi2.
PERIOD OF RECORD.--Nov. 1967 to Sept. 1991, Oct. 1992 to Sept. 1995 (annual maximum only), Oct. 1995 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 4,160 ft above sea level, from topographic map.
REMARKS.--Records fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 30,000 ft3/s Oct. 20, 1972, gage height, 22.56 ft, from rating curve extended above 960 ft3/s on basis of
slope-area measurement of peak flow; minimum daily, 1.4 ft3/s Oct. 18–20, 1978.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 800 ft3/s and (or) maximum (*):
Date
July 23...........
Aug. 19 ..........
Sept. 11 .........
Time
Discharge (ft3/s)
1715
1700
0515
1,440
1,690
*5,590
Gage height (ft)
8.29
8.67
*12.53
Minimum daily discharge, 0.91 ft3/s June 21.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
1
2
3
4
5
5.0
4.8
4.7
4.9
4.7
3.8
3.8
3.7
3.7
3.9
3.6
3.6
3.8
3.9
4.0
8.9
9.1
9.3
9.5
9.6
6
7
8
9
10
4.6
4.6
4.9
4.6
4.3
4.1
3.9
3.7
3.7
3.8
4.1
4.2
4.3
4.4
4.7
11
12
13
14
15
4.4
4.4
4.5
4.4
4.4
3.7
3.7
3.6
3.6
3.5
16
17
18
19
20
4.4
4.3
4.2
4.2
4.2
21
22
23
24
25
26
27
28
29
30
31
TOTAL
MEAN
MAX
MIN
AC-FT
MAR
APR
MAY
11
11
11
11
10
11
10
10
9.9
9.8
8.4
8.4
8.5
8.4
8.6
5.7
5.6
5.6
5.4
5.4
2.5
2.4
2.4
2.3
2.3
9.7
9.8
9.8
9.9
10
11
10
10
10
10
9.6
9.4
9.7
9.6
9.6
9.1
9.3
8.6
8.4
8.1
5.1
5.1
4.9
4.8
4.6
5.0
5.1
5.2
5.4
5.5
10
10
11
11
11
10
10
10
10
10
9.5
9.5
9.5
9.6
9.7
7.9
7.6
7.6
8.1
8.5
3.5
3.5
3.6
3.5
3.5
5.6
6.0
6.5
6.7
7.0
10
10
11
11
11
10
10
10
10
10
9.8
9.8
9.8
9.7
9.5
4.2
4.2
4.2
4.1
3.9
3.4
3.4
3.5
3.5
3.5
7.2
7.4
7.5
8.1
8.2
10
10
10
11
10
9.9
9.9
10
9.9
10
3.8
3.8
3.9
3.8
3.7
3.7
3.6
3.6
3.5
3.6
3.6
---
8.3
8.4
8.4
8.5
8.5
8.7
10
10
10
11
11
11
133.8
4.316
5.0
3.7
265
109.0
3.633
4.1
3.4
216
187.8
6.058
8.7
3.6
373
315.6
10.18
11
8.9
626
FEB
JUN
JUL
AUG
SEP
1.1
1.1
1.1
1.2
1.3
8.0
12
13
10
8.2
3.8
3.7
3.8
3.9
3.7
2.6
2.5
2.4
2.1
1.8
1.1
0.99
1.2
1.4
1.5
33
15
32
13
9.5
3.5
3.4
3.5
3.7
205
4.5
4.5
4.4
4.3
4.2
1.6
1.5
1.4
1.3
1.2
1.6
1.7
1.4
1.3
1.5
8.9
9.1
9.1
8.8
8.6
3.9
3.7
3.7
3.6
3.5
1.2
1.0
1.1
1.0
0.96
1.7
2.1
2.0
2.7
2.2
9.0
8.9
9.0
9.2
9.2
8.0
6.8
6.2
5.8
5.9
3.5
3.5
3.4
3.4
3.3
0.91
1.5
1.2
1.1
1.0
2.1
12
109
52
16
10
10
10
-------
9.2
9.1
9.1
9.2
9.1
8.4
5.9
5.9
5.8
5.8
5.5
---
3.2
3.3
3.1
2.9
2.8
2.6
1.2
1.2
1.0
1.0
1.1
---
284.7
10.17
11
9.9
565
294.4
9.497
11
8.4
584
231.6
7.720
9.3
5.5
459
127.5
4.113
5.7
2.6
253
46.77
1.559
2.6
0.91
93
15.26
136
1994
1.56
2002
8.6
8.1
7.8
7.6
8.8
1310
153
74
47
33
11
13
10
97
36
24
19
18
16
14
17
11
8.9
7.3
6.0
12
11
10
9.0
8.1
5.0
4.3
4.3
5.5
4.5
4.1
7.2
6.0
5.4
4.8
4.6
---
345.29
11.14
109
0.99
685
439.5
14.18
97
4.1
872
2024.1
67.47
1310
3.4
4010
27.46
136
1994
2.42
2000
47.35
265
1999
8.73
1975
46.77
366
1975
2.94
2000
14
20
25
33
21
11
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1968 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
92.19
1027
1973
2.58
1983
53.39
443
1979
3.63
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
75.07
616
1979
3.69
1977
74.36
569
1979
5.35
1977
115.8
707
1980
8.04
1971
FOR 2001 CALENDAR YEAR
12604.1
34.53
524
3.4
3.5
25000
91
12
3.9
154.3
584
1983
8.94
1971
117.8
488
1983
6.69
1971
56.30
338
1973
3.85
2000
FOR 2002 WATER YEAR
4540.06
12.44
Apr 6
Nov 21
Nov 19
1310
0.91
1.1
9010
11
5.9
1.8
Sep 11
Jun 21
Jun 15
WATER YEARS 1968 - 2002
68.22
243
10.1
12400
0.00
0.00
49420
151
18
4.7
1979
1974
Oct 20 1972
Jan 23 1992
Aug 21 1992
147
GILA RIVER BASIN
09444500 SAN FRANCISCO RIVER AT CLIFTON, AZ
LOCATION.--Lat 33° 02'58", long 109° 17'43", in SW1/4SE1/4 sec. 30, T.4 S., R.30 E., Greenlee County, Hydrologic Unit 15040004, on downstream side of right pier at Railroad
Boulevard Bridge (U.S. Highway 191), at Clifton, 9.9 mi upstream from mouth.
DRAINAGE AREA.--2,766 mi2, of which 2 mi2 is noncontributing.
PERIOD OF RECORD.--Oct. 1910 to Mar. 1911, July 1911 to June 1912, Sept. 1912, Nov. 1912 to Mar. 1913, May 1913 to July 1918, July 1927 to current year. Monthly
discharge only for some periods, published in WSP 1313. Published as "San Francisco River at dam above Clifton" in 1911 and under both names in 1912.
REVISED RECORDS.--WSP 1049: 1911, 1913–15, 1917. WSP 1283: Drainage area. WSP 1313: 1927–30(M), 1932(M), 1934(M). WRD Ariz. 1972: 1917(M).
GAGE.--Water-stage recorder. Datum of gage is 3,436.16 ft above sea level. See WSP 1713 or 1733 for history of changes prior to Apr. 7, 1959. Apr. 7, 1959, to Mar. 23,
1961, at site 1,140 ft downstream at datum 5.37 ft lower. July 18, 1980 to July 28, 1983, supplementary water-stage recorder 0.4 mi upstream on right bank at same
datum and June 15, 1981, to Sept. 30, 1983, crest-stage gages at site. Aug. 4, 1983, to Mar. 1, 1985, supplementary water-stage recorder on right bank at main gage site
at same datum, Oct. 1, 1992, at main gage site, at datum 10.00 ft higher.
REMARKS.--Records fair, except for estimated daily discharges, which are poor. Diversions for mining, municipal use, and for irrigation of about 2,700 acres above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 90,900 ft3/s Oct. 2, 1983, gage height, 19.72 ft, from high-water mark, from rating curve extended above
30,000 ft3/s on basis of slope-area measurement at gage height 17.0 ft; minimum daily, 6.1 ft3/s June 21, 1971.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,000 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
2345
*7,330
Gage height (ft)
*17.56
Minimum daily discharge, 6.8 ft3/s June 24.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUL
AUG
SEP
1
2
3
4
5
43
43
45
46
48
43
49
49
47
47
64
62
60
62
65
74
73
70
70
74
74
74
75
78
78
68
69
69
69
70
58
56
53
51
54
36
35
34
29
32
14
15
14
15
15
9.9
11
11
14
16
e62
e53
62
84
81
41
61
57
50
46
6
7
8
9
10
49
50
51
51
47
50
51
51
52
53
65
64
64
63
63
73
73
73
73
74
76
75
74
74
72
71
71
68
64
62
55
58
58
56
53
35
36
36
34
31
14
16
17
16
15
10
9.7
10
11
9.0
120
129
90
104
134
42
39
41
43
41
11
12
13
14
15
52
52
53
48
46
54
54
56
57
58
64
67
67
66
66
77
77
75
74
74
71
72
72
72
70
57
58
61
60
60
52
48
50
49
47
32
31
31
31
25
14
15
15
14
14
16
19
19
17
13
124
91
67
55
50
1930
3640
982
445
291
16
17
18
19
20
47
45
39
43
45
59
56
54
55
59
67
66
66
66
66
75
81
80
81
80
69
65
64
66
67
64
64
65
66
60
45
46
44
43
43
26
27
26
25
24
13
12
10
11
11
20
30
27
19
22
46
42
42
46
143
224
165
132
109
95
21
22
23
24
25
45
47
50
51
50
60
60
61
59
59
67
66
67
68
68
79
78
77
77
76
66
66
65
64
64
63
65
64
63
63
40
43
42
41
39
23
23
21
21
20
11
11
9.6
6.8
7.5
23
23
29
91
54
92
66
57
47
43
84
76
69
65
61
26
27
28
29
30
31
50
49
50
49
48
43
60
61
62
63
64
---
68
68
67
68
68
69
75
76
76
76
76
77
61
61
65
-------
61
57
57
58
59
59
37
39
38
38
38
---
19
18
17
17
17
14
9.0
8.8
9.0
8.1
9.8
---
47
43
54
62
82
70
39
36
38
42
44
45
60
54
56
56
56
---
1475
47.58
53
39
2930
0.02
0.02
1663
55.43
64
43
3300
0.02
0.02
2037
65.71
69
60
4040
0.02
0.03
2344
75.61
81
70
4650
0.03
0.03
1950
69.64
78
61
3870
0.03
0.03
1965
63.39
71
57
3900
0.02
0.03
1414
47.13
58
37
2800
0.02
0.02
826
26.65
36
14
1640
0.01
0.01
370.6
12.35
17
6.8
735
0.00
0.00
891.6
28.76
91
9.0
1770
0.01
0.01
2174
70.13
143
36
4310
0.03
0.03
9111
303.7
3640
39
18070
0.11
0.12
56.11
310
1992
11.0
1956
99.80
657
1915
28.5
1947
198.1
1360
1967
40.6
1960
154.1
816
1975
21.5
1956
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
JUN
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
230.3
4285
1984
23.3
1954
133.1
1450
1979
28.2
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
249.6
2445
1979
33.5
1954
295.1
4204
1993
37.0
1954
351.6
2429
1993
38.8
1954
441.9
2136
1915
43.9
1951
FOR 2001 CALENDAR YEAR
48415
132.6
751
Apr
31
Jul
34
Jul
96030
0.048
0.65
315
73
45
324.5
2252
1915
36.3
1955
160.7
1244
1973
23.7
1956
FOR 2002 WATER YEAR
26221.2
71.84
7
2
1
3640
Sep 12
6.8
Jun 24
8.4
Jun 23
52010
0.026
0.35
77
56
15
WATER YEARS 1914 - 2002
222.1
937
1915
42.0
1951
52200
Oct 2 1983
6.1
Jun 21 1971
8.1
Jun 19 1956
160900
0.080
1.09
433
75
35
148
GILA RIVER BASIN
09445000 WILLOW CREEK DIVERSION FROM BLACK RIVER, NEAR MORENCI, AZ
LOCATION.--Lat 33° 24'46", long 109° 43'08", in SW1/4 sec. 23, T.1 N., R.25 E. (unsurveyed), Graham County, Hydrologic Unit 15040005, in San Carlos Indian Reservation, on
left bank just downstream from end of diversion pipeline, 3.6 mi northeast of Point of Pines, 5.0 mi southeast of pumping plant on Black River, and 29 mi northwest of
Morenci.
PERIOD OF RECORD.--Apr. 1945 to current year.
GAGE.--Water-stage recorder and steel-edged rectangular weir. Datum of gage is 5,957.16 ft above sea level. Prior to June 26, 1946, at end of pipeline at that time, 3.5 mi
upstream at datum about 50 ft higher.
REMARKS.--No estimated daily discharges. Records good. The entire flow consists of Black River (head of Salt River) water, which is pumped into headwater of Willow Creek
(tributary of Eagle Creek) for industrial and municipal supply in vicinity of Morenci.
AVERAGE DISCHARGE.--57 years, 11.4 ft3/s, 8,220 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 28 ft3/s May 18, 19, 21–26, 1970; no flow at times in most years.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
6.0
6.0
6.0
6.0
5.8
5.8
5.5
5.8
5.8
5.8
5.9
5.7
5.7
5.7
5.8
6.4
6.5
6.6
6.6
6.3
6.2
6.2
6.2
6.2
6.2
6.1
6.1
6.0
6.0
6.0
12
12
12
9.9
12
11
12
12
12
12
6.4
6.4
6.4
6.4
6.4
3.2
0.16
0.03
3.1
0.17
11
12
12
12
12
5.8
5.7
5.8
5.8
5.8
6
7
8
9
10
5.9
6.0
6.0
5.8
5.9
5.8
6.0
5.7
6.0
6.0
5.8
5.8
5.8
5.9
6.0
6.1
6.2
6.6
6.6
6.4
6.2
6.2
6.2
6.2
6.1
6.2
6.2
6.2
6.2
6.2
6.8
0.04
3.7
12
12
12
12
10
5.8
5.8
6.4
6.4
6.5
6.6
5.7
0.09
3.2
0.14
0.09
3.1
11
11
11
11
10
5.7
5.5
4.1
e0.00
e0.00
11
12
13
14
15
6.0
5.9
5.8
5.8
5.8
6.0
6.0
5.8
5.7
5.7
6.0
6.0
6.0
6.0
6.0
6.4
6.6
6.6
6.5
6.4
6.0
6.0
6.0
6.0
6.0
6.2
6.1
6.0
6.2
6.4
12
12
12
12
12
6.0
5.9
5.8
5.9
5.4
0.24
0.04
2.5
0.00
0.00
0.13
0.07
3.2
0.12
0.09
11
11
12
12
11
e0.00
e0.00
e0.00
e0.00
e0.00
16
17
18
19
20
5.8
5.8
5.8
5.8
5.8
5.6
5.7
5.7
5.7
5.8
5.9
6.2
6.5
6.4
6.5
5.9
6.0
6.2
6.2
6.3
6.0
6.1
6.1
6.0
6.0
6.4
6.4
6.4
6.4
6.4
12
12
12
12
12
5.9
6.0
6.1
6.2
6.2
2.7
0.15
0.02
3.2
0.14
2.8
0.11
0.04
8.1
10
12
12
12
12
12
e0.00
e0.00
e6.0
e12
e12
21
22
23
24
25
5.8
5.8
5.8
5.8
5.8
5.8
5.8
6.2
6.4
6.4
6.6
6.5
6.4
6.4
6.4
6.4
6.4
6.4
6.3
6.2
6.0
6.0
6.0
6.0
6.0
6.1
5.8
6.1
6.2
6.2
12
12
12
12
12
6.2
6.2
6.2
6.4
6.4
0.06
3.0
0.15
0.07
3.2
12
12
11
11
11
12
12
12
11
12
e12
e12
e12
e12
e12
26
27
28
29
30
31
5.8
5.8
5.8
5.7
5.8
5.8
6.4
6.4
6.4
6.3
6.2
---
6.4
6.4
6.4
6.4
6.4
6.4
6.2
6.2
6.2
6.2
6.2
6.2
6.0
6.0
6.0
-------
6.3
6.4
6.4
6.2
9.3
12
8.7
6.0
6.0
9.2
11
---
6.4
6.4
6.4
6.4
6.4
6.4
0.76
0.13
3.2
0.15
0.07
---
12
11
11
7.3
11
11
12
11
8.0
5.8
5.7
5.8
e12
e12
e12
e12
e12
181.4
5.852
6.0
5.7
360
178.2
5.940
6.4
5.5
353
190.3
6.139
6.6
5.7
377
196.3
6.332
6.6
5.9
389
170.1
6.075
6.2
6.0
337
201.1
6.487
12
5.8
399
313.34
10.44
12
0.04
622
233.8
7.542
12
5.4
464
83.38
2.779
6.6
0.00
165
TOTAL
MEAN
MAX
MIN
AC-FT
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 2677.42
TOTAL 2437.66
MEAN 7.335
MEAN 6.679
MAX 12
MAX 12
MIN 0.12
MIN 0.00
APR
AC-FT 5310
AC-FT 4840
MAY
JUN
JUL
158.24
5.105
12
0.03
314
AUG
337.3
10.88
12
5.7
669
SEP
--194.20
6.473
12
0.00
385
149
GILA RIVER BASIN
09447000 EAGLE CREEK ABOVE PUMPING PLANT, NEAR MORENCI, AZ
LOCATION.--Lat 33° 03'52", long 109° 26'30", in SW1/4SE1/4 sec. 23, T.4 S., R.28 E., Greenlee County, Hydrologic Unit 15040005, on right bank 2 mi upstream from Phelps
Dodge Corp. pumping plant, 5 mi west of Morenci, and 12 mi upstream from mouth.
DRAINAGE AREA.--622 mi2.
PERIOD OF RECORD.--Apr. 1944 to current year.
REVISED RECORDS.--WSP 1850–C: 1966. WDR AZ–88–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,673.5 ft above sea level. Oct. 25, 1984, to Mar. 6, 1986, at site 1 mi upstream at datum 24.1 ft higher. Prior to Oct. 25,
1984, at various sites within 1 mi upstream from present site at different datums. Aug. 23, 1950, to Aug. 1, 1981, and since Mar. 6, 1984, supplementary gages at various
sites within 1 mi upstream from present site at different datums. Feb. 7, 1993, to July 2, 1993, on right bank at different datum.
REMARKS.--Records good, except estimated daily discharges, which are poor. Diversions above station for irrigation of about 500 acres, mostly above Willow Creek. Water
from Black River was pumped into Eagle Creek basin, 52 mi upstream from this station, and water was pumped from wells into Eagle Creek near Double Circle Ranch
below Willow Creek. The monthly quantities pumped are shown in the table below. Diversion by pumping for industrial and municipal use in and near Morenci and Clifton
are made from Eagle Creek, 3 mi downstream from this station and from San Francisco River near Clifton. Monthly quantities diverted are shown in the table below.
AVERAGE DISCHARGE (unadjusted).--58 years, 67.5 ft3/s, 48,870 acre-ft/yr; median of yearly mean discharges, 38 ft3/s, 27,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 36,800 ft3/s Jan. 18, 1993, on basis of slope-area measurement; minimum, 2.9 ft3/s June 25, 1982.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 800 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
1530
*978
Gage height (ft)
*4.87
Minimum daily discharge, 15 ft3/s Dec. 19; Dec. 27–29; Aug. 16–17.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
16
17
19
19
17
18
16
16
16
17
19
19
19
19
19
e17
e18
e18
e17
e17
e20
e19
e19
e19
e18
16
16
16
16
16
20
23
25
25
27
23
24
24
24
24
22
22
22
22
22
20
20
20
21
20
19
56
39
118
67
20
21
22
23
18
6
7
8
9
10
17
21
21
21
20
20
20
19
18
19
18
19
18
18
18
e17
e17
e17
e16
e16
e18
e18
e18
e18
e18
17
18
19
19
19
28
29
29
23
19
23
23
e23
e24
e24
23
23
23
22
21
20
20
22
25
24
40
34
29
23
25
16
17
21
31
26
11
12
13
14
15
18
17
16
16
16
20
20
20
20
20
18
20
19
17
16
e17
e18
e17
e17
e17
e17
e17
e17
e17
e17
18
18
18
17
17
20
24
25
26
26
e24
e25
e25
e24
e23
22
24
23
20
20
23
25
25
22
24
42
38
28
19
16
260
111
65
45
35
16
17
18
19
20
16
16
16
16
16
19
19
19
19
19
17
16
16
15
16
18
18
18
18
18
e17
e17
e17
e17
e16
17
18
18
18
18
26
26
26
25
25
e23
e23
e23
e23
e23
19
19
19
20
20
27
35
35
31
31
15
15
16
18
20
26
21
23
17
16
21
22
23
24
25
16
17
18
18
18
19
20
20
20
20
e16
e16
e17
e17
e17
18
18
18
19
18
e16
e16
e16
e16
e16
18
18
18
18
18
25
25
24
24
24
e23
23
23
24
25
20
20
20
20
20
39
e60
e45
e30
e25
27
23
21
19
18
20
21
17
16
16
26
27
28
29
30
31
18
18
18
18
18
18
20
21
21
21
19
---
e16
e15
e15
e15
e16
e17
18
18
18
e19
e20
e20
e16
e16
16
-------
18
18
18
18
18
18
24
24
23
22
22
---
25
25
24
24
23
23
21
21
20
21
21
---
e17
68
107
91
40
28
17
17
17
20
23
22
16
16
16
16
16
---
546
17.61
21
16
1080
0.03
0.03
622
745
575
19.17
21
16
1140
0.03
0.03
436
737
533
17.19
20
15
1060
0.03
0.03
237
797
550
17.74
20
16
1090
0.03
0.03
227
811
482
17.21
20
16
956
0.03
0.03
190
701
547
17.65
19
16
1080
0.03
0.03
273
824
734
24.47
29
19
1460
0.04
0.04
509
1076
734
23.68
25
23
1460
0.04
0.04
949
1171
632
21.07
24
19
1250
0.03
0.04
1418
1011
1040
33.55
107
17
2060
0.05
0.06
997
964
901
29.06
118
15
1790
0.05
0.05
295
732
1004
33.47
260
16
1990
0.05
0.06
497
776
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
(*)
(**)
CAL YR 2001
WTR YR 2002
e
TOTAL 10095
TOTAL 8278
MEAN 27.66
MEAN 22.68
MAX 157
MAX 260
MIN 14
MIN 15
AC-FT 20020
AC-FT 16420
CFSM 0.04
CFSM 0.04
IN. 0.60
IN. 0.50
Estimated
(*) Pumpage, in acre-feet, into Eagle Creek from Eagle Creek wells.
(**) Pumpage, in acre-feet, into Clifton-Morenci, from San Francisco River and Eagle Creek
150
GILA RIVER BASIN
09447800 BONITA CREEK NEAR MORENCI, AZ
LOCATION.--Lat 32° 57'20", long 109° 31'50", in SE1/4NW1/4 sec. 36, T.5 S., R.27 E., Graham County, Hydrologic Unit 15040005, on left bank 2 mi upstream from intake of City
of Safford water supply, 6.3 mi upstream from mouth, and 12.8 mi southwest of Morenci.
DRAINAGE AREA.--302 mi2.
PERIOD OF RECORD.--Aug. 1981 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,500 ft above sea level, from topographic map. Two crest-stage gages 440 ft upstream on right and left banks.
REMARKS.--No estimated daily discharges. Records fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 19,500 ft3/s Jan. 18, 1993, gage height, 16.5 ft, from slope-area measurement of peak flow; minimum daily,
0.66 ft3/s Aug. 31, 1988.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Dec. 20, 1972, 10,000 ft3/s, from slope-area measurement made by City of Safford at site about 2 mi downstream.
Flood of June 27, 1981, 1,340 ft3/s, from slope-area measurement at present site, gage height, 5.6 ft, from floodmark.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 300 ft3/s and (or) maximum (*):
Date
Dec. 16..........
Time
Discharge (ft3/s)
1315
*6.6
Gage height (ft)
*4.49
Minimum daily discharge, 16 ft3/s, July 7 and 8: July 19 and 20.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
3.2
3.3
3.3
3.4
3.1
4.0
4.0
4.0
3.7
4.0
5.0
5.0
4.8
4.5
4.6
4.8
4.9
5.0
4.8
4.9
4.5
4.4
4.2
4.2
4.1
3.5
3.7
3.8
3.9
3.9
3.8
3.6
3.5
3.5
3.5
3.1
3.0
3.1
3.1
3.1
2.3
2.3
2.3
2.2
2.2
1.7
1.7
1.8
1.8
1.8
2.1
2.2
2.2
2.3
2.3
2.4
2.4
2.4
2.3
2.3
6
7
8
9
10
3.3
3.4
3.5
3.5
3.4
4.0
4.0
4.0
3.9
4.1
4.6
4.6
4.6
4.6
4.6
4.9
4.9
4.7
4.5
4.2
4.2
4.3
4.2
4.1
4.1
3.7
3.6
3.5
3.4
3.5
3.7
4.0
3.9
3.7
3.6
3.1
3.0
3.1
3.2
3.2
2.1
2.1
2.1
2.1
2.0
1.8
1.8
1.8
1.8
1.8
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
11
12
13
14
15
3.5
3.5
3.7
3.7
3.7
4.0
4.0
4.0
4.2
3.9
4.7
4.9
5.1
5.3
5.3
4.1
4.3
4.4
4.4
4.4
4.2
4.4
4.3
4.0
4.0
3.5
3.5
3.5
3.5
3.8
3.3
3.1
3.1
3.0
3.0
3.2
3.1
3.1
3.3
3.3
2.0
2.0
2.0
2.0
2.0
1.9
1.9
1.9
1.9
1.9
2.3
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
16
17
18
19
20
3.6
3.6
3.5
3.6
3.7
3.9
3.9
3.9
3.9
4.0
5.5
5.4
5.5
5.3
5.1
4.2
3.9
3.9
4.1
4.2
3.9
3.8
3.7
3.8
3.7
3.9
3.9
4.0
3.8
3.7
2.8
2.8
2.8
2.8
2.9
3.4
3.4
3.4
3.4
3.3
2.0
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
2.0
2.4
2.4
2.5
2.5
2.5
2.4
2.4
2.4
2.4
2.3
21
22
23
24
25
3.7
3.7
3.6
3.6
3.6
4.1
4.1
4.1
4.2
4.4
5.0
4.9
5.0
4.8
4.9
4.3
4.4
4.4
4.5
4.5
3.6
3.6
3.8
3.6
3.7
3.7
3.5
3.6
3.8
3.9
3.0
3.0
2.9
2.8
2.9
3.2
3.2
3.2
3.1
3.2
1.9
1.9
1.9
1.8
1.8
2.0
2.1
2.1
2.1
2.1
2.5
2.5
2.5
2.5
2.5
2.3
2.3
2.4
2.4
2.4
26
27
28
29
30
31
3.7
3.8
3.7
3.8
3.9
3.9
4.5
4.8
4.9
5.1
5.0
---
5.0
5.2
5.1
4.8
4.5
4.5
4.6
4.4
4.1
4.1
4.2
4.3
3.6
3.6
3.6
-------
3.9
3.9
3.8
3.8
3.9
3.7
3.1
3.1
2.9
2.9
2.9
---
3.1
2.9
2.7
2.7
2.6
2.4
1.8
1.8
1.7
1.8
1.7
---
2.1
2.1
2.1
2.1
2.1
2.1
2.5
2.5
2.5
2.5
2.4
2.5
2.4
2.4
2.5
2.5
2.5
---
110.5
3.565
3.9
3.1
219
0.01
0.01
124.6
4.153
5.1
3.7
247
0.01
0.02
152.7
4.926
5.5
4.5
303
0.02
0.02
137.3
4.429
5.0
3.9
272
0.01
0.02
111.2
3.971
4.5
3.6
221
0.01
0.01
115.1
3.713
4.0
3.4
228
0.01
0.01
95.9
3.197
4.0
2.8
190
0.01
0.01
96.2
3.103
3.4
2.4
191
0.01
0.01
59.4
1.980
2.3
1.7
118
0.01
0.01
59.9
1.932
2.1
1.7
119
0.01
0.01
74.2
2.394
2.5
2.1
147
0.01
0.01
71.3
2.377
2.5
2.3
141
0.01
0.01
3.201
5.86
1995
1.32
1982
7.083
44.5
1999
1.93
2002
7.909
14.6
2000
2.39
2002
7.803
28.6
1996
2.38
2002
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
14.50
176
1984
1.52
1992
6.776
21.7
1995
1.86
1992
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
9.784
29.6
1983
4.93
2002
52.31
769
1993
4.43
2002
26.97
165
1993
3.83
2001
FOR 2001 CALENDAR YEAR
13.73
53.6
1995
2.74
2001
5.077
10.7
1998
2.00
1991
3.933
6.33
1993
2.10
1991
FOR 2002 WATER YEAR
1274.3
3.491
1208.3
3.310
8.5
Aug 29
2.3
Jun 25
2.3
Jun 25
2530
0.012
0.16
5.2
3.1
2.4
5.5
Dec 16
1.7
Jun 28
1.7
Jun 26
2400
0.011
0.15
4.6
3.5
2.0
WATER YEARS 1982 - 2002
13.24
83.7
1993
3.31
2002
10200
Jan 19 1993
0.66 Aug 31 1988
0.76 Aug 26 1988
9590
0.044
0.60
9.2
4.6
2.5
151
GILA RIVER BASIN
09448500 GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOLOMON, AZ
LOCATION.--Lat 32° 52'06", long 109° 30'38", in SE1/4NE1/4 sec. 31, T.6 S., R.28 E., Graham County, Hydrologic Unit 15040005, on left bank 0.6 mi downstream from intake of
Brown Canal, 8 mi northeast of Solomon, and 17 mi downstream from San Francisco River. Records include flow of Brown Canal, which is measured 2,000 ft downstream
from intake.
DRAINAGE AREA.--7,896 mi2.
PERIOD OF RECORD.--Apr. 1914 to current year. Monthly discharge only for some periods, published in WSP 1313. Prior to Oct. 1932 and Oct. 1940 to Sept. 1949 published
as "near Solomonsville" and Oct. 1932 to Oct. 1933 and May 1935 to Sept. 1940 as "below Bonita Creek near Solomonsville."
REVISED RECORDS.--WSP 1059: 1914, 1916–17, 1923(M), 1924–25, 1927, 1929–31(M). WSP 1179: 1915, 1918–19(M). WSP 1313: 1934. WSP 1733: 1923.
GAGE.--Water-stage recorder. Datum of gage is 3,059.92 ft above sea level. Prior to July 8, 1980, at datum 4.96 ft higher. See WSP 1733 for history of changes prior to
Jan. 1, 1941. Supplementary water-stage recorder and Parshall flume on Brown Canal.
REMARKS.-- Records good, except estimated daily discharges, which are poor. Records show water reaching head of Safford Valley and include water diverted to Brown
Canal. Diversions above station for mining, municipal use, and for irrigation of about 17,500 acres, much of it by pumping from ground water.
COOPERATION.--Record for Brown Canal furnished by Gila Water Commissioner.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 132,000 ft3/s Oct. 2, 1983, gage height, 20.8 ft, from rating curve extended above 52,000 ft3/s on basis of
slope-area measurements at 14.40 ft and 20.8 ft; minimum, 11 ft3/s June 25, 1956.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 4,000 ft3/s and (or) maximum (*):
Date
Sept. 12.........
Time
Discharge (ft3/s)
1500
*4,740
Gage height (ft)
*10.76
3/s June 26.
Minimum daily discharge, 30 ft
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
88
84
83
84
86
99
99
101
102
102
139
139
139
139
140
167
167
167
168
170
168
168
170
172
175
141
138
138
138
136
113
112
111
107
106
77
75
75
74
71
49
48
47
46
45
31
31
32
32
33
143
122
127
471
325
78
83
92
91
85
6
7
8
9
10
90
92
89
90
90
106
107
108
107
111
139
138
140
139
140
171
171
172
171
171
177
178
177
177
175
135
135
135
133
131
107
108
106
105
102
70
69
68
67
66
45
49
47
46
43
34
31
31
32
34
259
589
291
216
208
82
78
77
84
84
11
12
13
14
15
87
85
86
89
89
114
116
117
120
120
143
148
152
154
156
171
170
171
170
170
176
177
175
171
169
128
124
125
123
123
99
95
91
91
89
64
64
63
62
62
42
41
40
40
37
36
e39
e39
e40
e41
223
228
165
136
122
982
4040
2710
1160
628
16
17
18
19
20
90
91
92
89
90
122
123
124
124
125
158
159
161
162
161
168
165
162
161
161
169
167
163
160
162
124
123
124
125
125
87
88
87
86
84
61
61
63
61
61
37
36
36
35
36
e46
60
67
64
73
114
120
102
94
125
426
334
277
238
205
21
22
23
24
25
90
92
92
92
90
127
129
128
130
134
162
164
165
167
167
161
162
165
167
165
161
159
158
153
150
124
125
123
122
121
84
81
82
81
82
60
58
58
57
58
36
35
34
33
32
61
86
120
101
112
130
119
97
87
85
180
157
142
129
119
26
27
28
29
30
31
93
94
96
96
98
99
136
136
137
137
138
---
167
168
169
169
168
167
166
167
166
167
168
169
148
145
144
-------
120
118
117
117
116
115
79
77
79
78
78
---
55
55
54
53
54
51
30
31
32
32
32
---
85
77
232
191
219
181
76
72
70
72
78
76
110
102
98
98
96
---
2796
90.19
99
83
90
5550
0.01
3579
119.3
138
99
121
7100
0.02
4779
154.2
169
138
158
9480
0.02
5187
167.3
172
161
167
10290
0.02
4644
165.9
178
144
168
9210
0.02
3922
126.5
141
115
124
7780
0.02
2775
92.50
113
77
88
5500
0.01
1947
62.81
77
51
62
3860
0.01
1172
39.07
49
30
37
2320
0.00
2291
73.90
232
31
46
4540
0.01
5142
165.9
589
70
122
10200
0.02
13065
435.5
4040
77
114
25910
0.06
108.0
716
1992
19.7
1956
205.3
736
1921
44.4
1947
501.0
2499
1923
66.0
1960
392.6
2081
1975
35.9
1956
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
387.3
7447
1984
39.9
1957
279.5
2230
1979
48.6
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
518.7
5798
1979
60.1
1957
703.0
13990
1993
92.8
1954
747.4
5509
1993
102
1954
FOR 2001 CALENDAR YEAR
94073
257.7
1180
Apr 7
74
Jun 25
75
Jun 25
186600
0.033
586
168
89
856.2
3629
1991
82.3
1971
578.9
2775
1973
63.8
1971
302.4
2038
1973
37.8
1956
FOR 2002 WATER YEAR
51299
140.5
4040
Sep 12
30
Jun 26
31
Jun 26
101800
0.018
171
112
44
WATER YEARS 1921 - 2002
464.7
2229
1993
101
1951
90000
Oct 2 1983
13
Jun 25 1956
15
Jun 22 1956
336600
0.059
979
177
64
152
GILA RIVER BASIN
09448500 GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOLOMON, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Jan. 1976 to Oct. 1981, Oct. 1988 to current year.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
06...
MAR
20...
MAY
22...
AUG
22...
Date
DEC
06...
MAR
20...
MAY
22...
AUG
22...
Date
DEC
06...
MAR
20...
MAY
22...
AUG
22...
Date
DEC
06...
MAR
20...
MAY
22...
AUG
22...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
1205
139
20
686
1225
121
9.2
685
1150
56
3.0
1205
103
Time
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
790
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
11.3
110
8.5
1010
15.0
9.5
10.6
117
8.7
1040
23.0
14.9
679
9.1
117
8.4
1350
28.5
685
6.9
96
8.3
1060
33.0
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
36
210
60.0
46
200
57.0
21.7
110
240
68.0
26.8
42
190
57.0
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
TEMPERATURE
WATER
(DEG C)
(00010)
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SODIUM
ADSORPTION
RATIO
63.0
14.0
15.0
6.90
4
120
171
197
6
170
1.3
58.0
13.0
15.0
6.70
4
120
150
166
8
190
1.2
68.0
16.0
16.0
9.20
5
180
128
147
5
280
1.4
67.0
11.0
17.0
7.40
3
100
146
161
8
170
1.0
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
TOTAL
(MG/L
AS N)
(00600)
NITROGEN,
TOTAL
(MG/L
AS NO3)
(71887)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
76.0
37
76.0
16
110
57.0
14
528
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
.84
616
551
E.20cl
.02
.03
.300
--
--
E.06cl
<5
E10k
E5k
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
.84
616
554
<.20
.03
.04
<.020
--
--
<.02
<5
E1k
<1k
1.07
788
742
<.20
.04
.05
<.020
--
--
<.02
6
E3k
E4k
.77
564
528
.90
<.01
.410
1.3
5.8
.60
9
E200k
--
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
--
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
<1
<1
3
4
43.0
53.0
<1
<1
108
110
<.5
<.5
<1
<1
<1
4
4
41.0
47.0
<1
<1
115
117
<.5
<.5
<1
<1
<1
3
3
53.0
57.0
<1
<1
142
148
<.5
<.5
<1
<1
<1
4
6
56.0
<1
1
93
101
<.5
<.5
<1
160
153
GILA RIVER BASIN
09448500 GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOLOMON, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
06...
MAR
20...
MAY
22...
AUG
22...
Date
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
1
<2
4
<2
910
<2
<2
<1
<2
3
<2
499
<2
<1
<2
<2
<2
203
<2
8
4
54
2
8420
<2
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
DEC
06...
<1
<1
<1
MAR
20...
<1
<1
<1
MAY
22...
<1
<1
<1
AUG
22...
<1
<1
<1
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
c -- See laboratory comment
k -- Counts outside acceptable range
l -- Sample lab preparation problem
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
3
36
<.10
<.1
<1
2
<2
5
20
<.10
<.1
<1
<1
<2
11
20
<.10
<.1
<1
<1
12
2
457
<.10
<.1
2
16
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
4
4
33
12.4
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
<1
690
<2
<2
<1
710
<2
<2
7
3
19
6.2
<1
880
<2
<2
19
<2
10
1.5
<1
740
<2
<2
21
51
579
161
154
GILA RIVER BASIN
09448500 GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOLOMON, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Water-quality measurements in the following table were made as part of the ADEQ Fixed-Station Network Program. The following analyses are quality-assurance samples
processed during the 2002 sampling period and are defined in the introductory text section titled “Water-Quality Control Data”.
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
Date
Time
Sample
type
MAY
22...
1155
2
5.7
1
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
Date
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
MAY
22...
<.5
<1
<.5
Remark codes used in this report:
< -- Less than
<1
TEMPERATURE
WATER
(DEG C)
(00010)
20.5
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
<2
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
.03
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
<2
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
<.03
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
<2
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
<.1
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<1
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
<.20
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<1
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
<.01
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
3
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
<.020
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
<.02
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<3
155
GILA RIVER BASIN
09460150 FRYE CREEK NEAR THATCHER, AZ
LOCATION.--Lat 32° 44'38", long 109° 50'15", in NE1/4 sec. 13, T.8 S., R.24 E. (unsurveyed), Graham County, Hydrologic Unit 15040005, in Coronado National Forest, on left
bank 8.5 mi southwest of Thatcher.
DRAINAGE AREA.--4.02 mi2. (Area at site used 1966–76, 3.91 mi2.)
PERIOD OF RECORD.--Dec. 1966 to Sept. 1976, Dec. 1988 to current year.
REVISED RECORDS.--WRD AZ 1968: Drainage area.
GAGE.--Water-stage recorder and V-notch sharp-crested weir. Elevation of gage is 5,580 ft above sea level, from topographic map. Prior to Dec. 1988, at site 0.25 mi upstream
at different datum.
REMARKS.--Records fair, except estimated daily discharges, which are poor. No regulation or diversion above station. City of Safford diverts water from Frye Mesa Reservoir
1 mi downstream for municipal supply.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 577 ft3/s, Jan. 5, 1995, gage height, 2.90 ft, from floodmark and from rating curve extended above 45 ft3/s no
flow at times in most years.
EXTREMES FOR CURRENT YEAR.--Peak discharge greater than base discharge of 8.0 ft3/s and (or) maximum (*):
Date
Aug. 6............
Time
Discharge (ft3/s)
2245
*1.3
Gage height (ft)
*0.66
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.15
0.14
0.14
0.14
0.13
0.46
0.47
0.47
0.50
0.59
e0.55
e0.55
e0.54
e0.54
e0.53
e0.40
e0.39
e0.39
e0.38
e0.38
e0.24
e0.24
e0.23
e0.23
e0.22
0.06
0.07
0.09
0.08
0.07
0.08
0.07
0.06
0.06
0.08
0.02
0.02
0.02
0.02
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.10
0.16
0.17
0.16
0.16
0.60
0.61
0.61
0.62
0.62
e0.53
e0.52
e0.52
e0.51
e0.51
e0.37
e0.37
e0.36
e0.36
e0.35
e0.22
e0.21
e0.21
e0.20
e0.20
0.08
0.10
0.11
0.11
0.14
0.09
0.12
0.12
0.15
0.14
0.02
0.02
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.11
0.73
0.31
0.17
0.09
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.15
0.20
0.18
0.18
0.26
0.63
0.64
e0.64
e0.63
e0.63
e0.50
e0.50
e0.49
e0.49
e0.48
e0.35
e0.34
e0.34
e0.33
e0.33
e0.19
e0.19
e0.18
e0.18
e0.17
0.16
0.18
0.10
0.04
0.14
0.10
0.07
0.02
0.01
0.03
0.02
0.02
0.02
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.05
0.03
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.37
0.43
0.48
0.47
0.44
e0.62
e0.62
e0.61
e0.61
e0.61
e0.48
e0.47
e0.47
e0.46
e0.46
e0.32
e0.32
e0.31
e0.31
e0.30
e0.17
e0.16
e0.16
e0.15
e0.15
0.18
0.07
0.25
0.18
0.14
0.04
0.01
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.44
0.44
0.41
0.40
0.38
e0.60
e0.60
e0.59
e0.59
e0.58
e0.45
e0.45
e0.44
e0.44
e0.43
e0.30
e0.29
e0.29
e0.28
e0.28
e0.14
e0.14
e0.13
e0.13
e0.12
0.10
0.11
0.10
0.10
0.26
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.37
0.36
0.35
0.35
0.41
0.43
e0.58
e0.57
e0.57
e0.56
e0.56
---
e0.43
e0.42
e0.42
e0.41
e0.41
e0.40
e0.27
e0.27
e0.26
e0.26
e0.25
e0.25
0.10
0.09
0.05
-------
0.21
0.26
0.20
0.27
0.16
0.06
0.00
0.00
0.00
0.00
0.01
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
8.95
0.289
0.48
0.10
18
0.07
0.08
17.59
0.586
0.64
0.46
35
0.15
0.16
14.80
0.477
0.55
0.40
29
0.12
0.14
10.00
0.323
0.40
0.25
20
0.08
0.09
4.80
0.171
0.24
0.05
9.5
0.04
0.04
4.18
0.135
0.27
0.04
8.3
0.03
0.04
1.27
0.042
0.15
0.00
2.5
0.01
0.01
0.25
0.008
0.02
0.00
0.5
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
1.52
0.049
0.73
0.00
3.0
0.01
0.01
0.00
0.000
0.00
0.00
0.00
0.00
0.00
2.090
7.37
1991
0.000
2002
1.310
6.81
1999
0.000
1996
0.764
1.91
1999
0.021
2000
1.136
6.85
1990
0.000
2002
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
1.235
9.74
2001
0.13
1992
1.471
9.26
1995
0.11
1990
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.971
4.43
1995
0.17
1996
1.866
13.7
1995
0.13
1996
1.761
11.3
1995
0.17
2000
FOR 2001 CALENDAR YEAR
686.86
1.882
17
0.10
0.13
1360
0.47
6.36
6.3
0.61
0.25
2.231
10.9
1995
0.13
1999
2.790
9.37
1992
0.042
2002
4.747
17.0
1992
0.008
2002
FOR 2002 WATER YEAR
63.36
0.174
Apr 28
Oct 6
Sep 30
0.73 Aug 7
0.00 Apr 18
0.00 Apr 21
126
0.043
0.59
0.51
0.09
0.00
WATER YEARS 1990 - 2002
1.865
5.02
1995
0.17
2002
150
Jan 5 1995
0.00 Jun 23 1990
0.00 Jun 23 1990
1350
0.46
6.30
4.2
0.47
0.04
156
GILA RIVER BASIN
09466500 GILA RIVER AT CALVA, AZ
LOCATION.--Lat 33° 11'08", long 110° 13'10", in SW1/4 sec. 8, T.3 S., R.21 E. (unsurveyed), Graham County, Hydrologic Unit 15040005, in San Carlos Indian Reservation, on
Southern Pacific Railroad bridge at head of San Carlos Reservoir, 2 mi west of Calva.
DRAINAGE AREA.--11,470 mi2.
PERIOD OF RECORD.--Oct. 1929 to current year.
GAGE.--Water-stage recorder. Datum of gage is 2,517.29 ft above sea level. Prior to Oct. 1, 1954, and Aug. 25, 1958, to Dec. 31, 1962, at datum 2.52 ft lower. Oct. 1, 1954,
to Aug. 24, 1958, at datum 5.52 ft lower. Dec. 31, 1962, to Oct. 20, 1972, at site 530 ft downstream at datum 3.65 ft lower. Oct. 20, 1972, to Sept. 30, 1974, supplementary
gage at bridge on U.S. Highway 70, 6.2 mi upstream at datum 2,560.19 ft, NGVD.
REMARKS.--Records poor. Diversion above station for irrigation of about 69,000 acres, metallurgical treatment of ores, and municipal uses.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 150,000 ft3/s Oct. 3, 1983, gage height, 23.1 ft, from rating curve extended above 87,000 ft3/s on basis of
area-velocity and flow-over-road computations of peak flow; no flow at times.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1914, probably in excess of 100,000 ft3/s Jan. 20, 1916, determined on basis of peak
discharge at stations near Solomon and at Kelvin.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,000 ft3/s and (or) maximum (*):
Date
Sept. 14 ........
Time
Discharge (ft3/s)
0745
*2,740
Gage height (ft)
*7.18
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
1
2
3
4
5
e3.5
e4.0
e4.4
e4.9
5.3
15
16
15
12
12
57
59
59
62
65
112
120
119
121
129
144
143
141
137
130
e58
e59
e59
e59
e59
40
38
37
36
36
21
21
19
19
19
6
7
8
9
10
5.3
7.0
18
15
14
16
17
16
16
16
62
62
64
63
66
135
140
146
149
151
124
116
108
105
100
59
61
67
63
61
37
39
41
37
37
11
12
13
14
15
12
11
11
13
12
18
19
22
22
23
70
75
77
79
81
153
156
156
157
158
100
94
77
61
58
59
58
56
54
54
16
17
18
19
20
11
9.7
11
7.6
7.3
26
28
29
33
37
81
84
92
93
95
161
163
164
162
163
57
55
56
56
55
21
22
23
24
25
7.5
9.1
11
13
12
39
39
41
41
41
97
100
102
104
103
162
161
162
161
156
26
27
28
29
30
31
12
12
12
11
12
12
45
48
51
51
55
---
105
104
99
99
100
106
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
310.6
10.02
18
3.5
616
0.00
0.00
859
28.63
55
12
1700
0.00
0.00
2565
82.74
106
57
5090
0.01
0.01
JUN
JUL
AUG
SEP
2.9
1.8
1.3
1.1
1.1
0.00
0.00
0.00
0.00
0.00
46
32
17
8.8
18
12
6.3
8.3
10
6.0
20
19
18
16
18
0.68
0.31
0.27
0.21
0.20
0.00
0.00
0.00
0.00
0.00
379
188
201
176
51
40
38
37
36
36
17
16
16
14
14
0.17
0.16
0.11
0.09
0.09
0.00
0.00
0.00
0.00
0.00
30
30
20
33
19
58
222
1290
e1970
e771
53
53
53
52
51
33
34
34
32
32
13
11
12
11
10
0.07
0.06
0.03
0.03
0.03
0.00
0.01
0.01
0.73
0.22
14
63
22
15
12
e396
e261
e188
e139
e92
54
55
55
55
e54
49
47
47
46
44
30
29
30
28
28
7.9
8.5
8.8
9.9
9.2
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
13
61
42
27
16
e76
e64
e55
e45
e33
156
159
159
161
159
150
e55
e56
e57
-------
41
39
39
41
41
42
27
27
26
25
22
---
9.6
8.4
7.7
6.1
4.8
3.9
0.00
0.00
0.00
0.00
0.00
---
0.00
73
3.3
0.14
29
38
9.1
6.8
5.9
8.5
32
24
e26
e25
e24
e22
e21
---
4661
150.4
164
112
9250
0.01
0.02
2358
84.21
144
54
4680
0.01
0.01
1624
52.39
67
39
3220
0.00
0.01
1002
33.40
41
22
1990
0.00
0.00
408.8
13.19
21
3.9
811
0.00
0.00
10.74
0.358
2.9
0.00
21
0.00
0.00
144.39
4.658
73
0.00
286
0.00
0.00
1620.1
52.26
379
5.9
3210
0.00
0.01
5862.6
195.4
1970
4.2
11630
0.02
0.02
52.37
1272
1992
0.000
1946
78.99
838
1955
0.000
1989
299.5
1661
1967
0.000
1989
242.8
1681
1975
0.000
1956
5.5
4.2
5.8
8.5
18
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1930 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
348.5
8486
1984
0.000
1954
232.1
2468
2001
0.000
1954
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
449.5
5652
1979
0.000
1954
751.3
16310
1993
21.6
1956
720.0
6225
1993
28.5
1957
FOR 2001 CALENDAR YEAR
50985.4
139.7
874
Apr 10
2.7
Sep 29
3.6
Sep 27
101100
0.012
0.17
322
64
8.1
723.5
3757
1991
10.3
1957
405.2
2623
1992
1.35
1957
221.6
3079
1992
1.25
1956
FOR 2002 WATER YEAR
21426.23
58.70
1970
Sep 14
0.00 Jun 23
0.00 Jun 23
42500
0.005
0.07
143
30
0.03
WATER YEARS 1930 - 2002
376.1
2451
28.7
90000
Oct 3
0.00 Jul 4
0.00 Aug 24
272500
0.033
0.45
786
70
2.6
1993
1956
1983
1930
1933
157
GILA RIVER BASIN
09466500 GILA RIVER AT CALVA, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Oct. 1974 to Sept. 1994 and Aug. 1999 to current year.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
07...
MAR
21...
MAY
23...
AUG
23...
Date
DEC
07...
MAR
21...
MAY
23...
AUG
23...
Date
DEC
07...
MAR
21...
MAY
23...
AUG
23...
Date
DEC
07...
MAR
21...
MAY
23...
AUG
23...
Time
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
1140
62
23
698
11.6
104
8.4
2660
11.0
6.5
45
330
1230
50
14
698
12.0
132
8.4
4310
27.5
15.1
84
400
100
108
1200
1105
9.4
46
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
92.0
88.0
20
690
8.5
109
8.2
4910
28.0
21.5
170
440
330
698
8.9
121
8.5
3240
32.0
25.4
0
270
70.0
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
SODIUM
ADSORPTION
RATIO
(00931)
27.0
28.0
8.10
10
430
286
339
5
540
1.8
250
29
106
37.0
39.0
8.80
16
720
319
374
7
930
2.0
440
24
110
18
870
267
315
6
1210
2.1
450
28
14
540
270
306
11
640
1.7
350
272
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
41.0
43.0
82.0
23.0
29.0
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
11.0
9.20
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
2.16
1590
1520
E.50cl
.03
.04
1.50
--
3.54
2600
2430
.60
.02
.03
1.30
.58
3.97
2920
2850
.40
.02
.03
<.020
2.62
1930
1800
.02
.03
2.20
1.8
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
E5k
<1
E3k
<1
E24k
<1
<1
5
6
100
--
<1
<1
10
13
140
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
.38
NITROGEN,
TOTAL
(MG/L
AS N)
(00600)
NITROGEN,
TOTAL
(MG/L
AS NO3)
(71887)
--
--
<5
<1k
1.9
8.4
E.04cl
.03
18
<1k
--
--
.03
17
<1k
1.8
4.0
17.7
.38
17
E450k
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
<1
449
451
<.5
<.5
<1
816
878
<.5
<.5
<1
<1
887
900
<.5
<.5
<1
<1
720
758
<.5
<.5
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
<1
7
8
65.0
72.0
<1
<1
8
8
77.0
87.0
<1
110
200
158
GILA RIVER BASIN
09466500 GILA RIVER AT CALVA, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
07...
MAR
21...
MAY
23...
AUG
23...
Date
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<1
<1
<2
<2
<2
728
<2
<2
27
71
<.10
<.1
1
<1
<1
<2
2
<2
436
<2
<2
90
137
<.10
<.1
1
<1
<1
<2
3
5
807
<2
<2
70
147
<.10
<.1
1
<1
5
2
14
3
5620
<2
5
9
197
<.10
<.1
2
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
DEC
07...
2
<1
<1
MAR
21...
2
4
4
MAY
23...
2
<1
<1
AUG
23...
9
4
4
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
c -- See laboratory comment
k -- Counts outside acceptable range
l -- Sample lab preparation problem
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
<1
<1
1070
<2
<2
6
3
30
5.0
<1
<1
1350
<2
<2
10
<4
37
5.0
<1
<1
1490
<2
<2
7
3
45
1.1
<1
<1
1060
<2
<2
20
24
568
70.5
159
GILA RIVER BASIN
09468500 SAN CARLOS RIVER NEAR PERIDOT, AZ
LOCATION.--Lat 33° 17'47", long 110° 27'03", in SE1/4 sec. 36, T.1 S., R.18 E. (unsurveyed), Gila County, Hydrologic Unit 15040007, in San Carlos Indian Reservation, on U.S.
Highway 70 bridge, 0.9 mi south of Peridot.
DRAINAGE AREA.--1,026 mi2.
PERIOD OF RECORD.--Aug. 1910 to Jan. 1911 (gage heights only), Apr. 1914 to July 1915, Aug. to Sept. 1915 (monthly discharge only), Oct. 1929 to current year. Prior to
Oct. 1929 published as "at San Carlos."
REVISED RECORDS.--WSP 1283: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 2,542.29 ft above sea level (AZ Highway Department benchmark). See WSP 1713 or 1733 for history of changes prior to Feb.1,
1942. Feb. 1, 1942, to Aug. 13, 1970, at sites 1.9 mi upstream at different datums. Aug 14, 1970, to Sept. 30, 1980, at site 1.8 mi upstream at datum 2,578.90 ft, above
sea level. Supplementary water-stage recorder Dec. 21, 1967, to July 2, 1968, at site 2.2 mi downstream at datum in use prior to Feb. 1, 1942; Jan. 31, 1979, to
Sept. 30, 1980, at present site and datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Diversions above station for irrigation of about 600 acres. Small inflow from sewage
treatment system about 3.6 mi upstream. Flow regulated to some extent since June 15, 1979, by Talkalai Reservoir; capacity, about 6,000 acre-ft.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 54,800 ft3/s Jan. 8, 1993, gage height, 12.12 ft, from rating curve extended above 23,000 ft3/s on basis of rate
of change in storage in San Carlos Reservoir; maximum gage height 14.8 ft, Dec. 22, 1965, site and datum then in use; no flow at times in most years.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,200 ft3/s and (or) maximum (*):
Date
Aug. 7 ............
Time
Discharge (ft3/s)
0100
*200
Gage height (ft)
5.97
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
4.4
6.1
6.6
6.8
8.1
8.5
8.7
9.0
8.7
9.6
15
14
12
12
14
13
13
13
13
13
15
14
14
13
12
14
13
13
12
12
4.6
4.3
4.0
3.7
3.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.1
2.1
0.80
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
1.6
4.7
8.5
8.0
7.9
8.2
7.9
10
11
10
10
11
12
12
12
12
12
12
12
13
13
13
12
12
13
15
16
13
14
15
14
13
3.4
3.0
2.5
2.0
1.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
4.1
3.2
1.8
0.13
0.00
5.9
5.5
6.4
6.7
6.3
11
11
13
15
15
12
12
12
12
12
13
13
14
15
14
16
15
15
14
14
13
12
13
12
11
1.1
0.74
0.28
0.00
0.53
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
4.2
2.7
1.4
0.69
0.08
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
6.5
6.8
7.1
7.0
7.0
16
16
15
13
12
13
13
13
13
13
15
16
15
16
16
13
13
13
13
13
11
9.4
8.9
8.3
7.9
0.16
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
25
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
7.3
7.2
6.8
6.1
6.2
e12
e12
e12
e13
e13
12
12
12
12
11
16
15
15
15
15
13
14
13
12
13
7.7
7.8
7.5
7.5
6.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.07
0.95
2.1
1.3
2.5
7.2
7.7
7.7
8.1
8.4
---
e13
e14
e14
13
14
15
12
12
13
13
13
14
15
15
15
-------
12
13
13
15
13
14
6.2
6.4
6.0
5.6
5.3
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.23
2.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
22.45
0.724
4.7
0.00
45
0.00
0.00
210.4
7.013
8.5
4.4
417
0.01
0.01
388
12.52
15
11
770
0.01
0.01
396
14.14
16
12
785
0.01
0.01
420
13.55
16
12
833
0.01
0.02
306.4
10.21
15
5.3
608
0.01
0.01
35.51
1.145
4.6
0.00
70
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
27.86
0.899
25
0.00
55
0.00
0.00
228.37
7.367
137
0.00
453
0.01
0.01
0.00
0.000
0.00
0.00
0.00
0.00
0.00
3.600
19.8
1993
0.000
1948
18.18
84.6
1930
0.000
1947
51.63
320
1990
1.61
1962
23.26
166
1983
0.000
1956
378.5
12.21
16
8.5
751
0.01
0.01
APR
MAY
15
137
40
14
7.3
0.00
0.00
0.00
0.00
0.00
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1930 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
28.70
519
1973
0.20
1957
20.06
178
1979
2.68
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
103.1
1581
1966
5.07
1951
140.2
3208
1993
5.80
1958
162.9
1500
1980
7.03
1953
FOR 2001 CALENDAR YEAR
141.3
1262
1941
4.83
1959
23.94
170
1941
2.17
1959
7.739
41.8
1980
0.029
1959
FOR 2002 WATER YEAR
3695.96
10.13
2413.49
6.612
167
Mar 9
0.00 May 14
0.00 May 14
7330
0.010
0.13
24
4.4
0.00
137
Aug
0.00 Oct
0.00 Oct
4790
0.006
0.09
14
5.9
0.00
7
1
1
WATER YEARS 1930 - 2002
60.08
426
1993
6.61
2002
20000
Jan 8 1993
0.00 Jun 16 1930
0.00 Jun 24 1930
43520
0.059
0.80
65
9.8
1.0
160
GILA RIVER BASIN
09469000 SAN CARLOS RESERVOIR AT COOLIDGE DAM, AZ
LOCATION.--Lat 33° 10'32", long 110° 31'38", in NW1/4 sec. 17, T.3 S., R.18 E. (unsurveyed), Gila County, Hydrologic Unit 15040005, in San Carlos Indian Reservation, at right
intake tower of Coolidge Dam on Gila River.
DRAINAGE AREA.--12,886 mi2.
REVISED RECORDS.--WSP 1049: 1929, 1934, 1937–38. WSP 1283: Drainage area.
PERIOD OF RECORD.--Nov. 1928 to current year.
GAGE.--Water-stage recorder. Datum of gage is 2,539.54 ft above sea level. Prior to Jan. 15, 1937, series of stakes with tops at known elevations for reference points on right
bank about 1,000 ft upstream from dam. Jan. 15, 1937, to Dec. 31, 1947, water-stage recorder at present site at datum 0.72 ft lower.
REMARKS.--Records good. Reservoir is formed by concrete multiple-dome dam. Dam completed Oct. 25, 1928; storage began Nov. 15, 1928. Usable capacity (from capacity
table computed by San Carlos Irrigation District, based on an estimate of sediment deposited since 1966; used since Jan. 1, 1991) 866,600 acre-ft between elevations
2,382.63 ft, sill of lowest outlet gate, and 2,510.4 ft (revised), crest of spillway. No dead storage. Figures given herein represent usable contents. Reservoir is used to
store water for irrigation of San Carlos project and for power development, dependent on irrigation demands. In 1997 laws were passed that prohibited water users from
using storage below 29,559 acre-ft. Spill over Coolidge Dam because of capacity storage has occurred Apr. 22 to May 5, 1979, Feb. 24 to Mar. 13, 1980, Oct. 4–23, 28–31,
Dec. 3–13, 1983, Jan. 2 to June 5, 1985, Jan. 11 to Mar. 18, 1993.
COOPERATION.--Wire-weight gage readings furnished by Bureau of Indian Affairs.
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 1,090,000 acre-ft Feb. 26 to Mar. 6, 1980; maximum elevation observed, 2,521.36 ft Jan. 20, 1993; no usable
contents at times.
EXTREMES FOR CURRENT YEAR.--Maximum contents, 93,715 acre-ft Oct. 1, elevation, 2,433.77 ft; minimum, 44,569 acre-ft Sept. 6, elevation, 2,420.70 ft.
RESERVOIR STORAGE, in (ACRE-FEET), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 2400 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
92930
92330
91880
91200
90530
79560
79560
79560
79560
79400
78780
78270
77770
77170
76790
67120
67090
67050
66980
66940
70180
70330
70490
70640
70760
67640
67240
66830
66610
66210
57180
57140
57180
57220
57220
56510
56470
56510
56550
56510
53410
53410
53270
53200
53200
51020
50950
50880
50750
50680
49080
49110
48980
48920
48890
45070
44980
44980
44920
44860
6
7
8
9
10
89860
89330
88710
88050
87400
79440
79400
79440
79280
79280
76250
75790
75080
74590
74020
66940
66900
66870
66870
66870
70840
70910
71030
70990
71070
65810
65270
64880
64420
63880
57180
57220
57260
57330
57300
56470
56400
56400
56400
56220
53200
53100
53000
52860
52680
50650
50550
50450
50420
50350
48980
48730
48280
48030
47720
44690
44690
44810
44810
44890
11
12
13
14
15
86880
86280
85730
85230
84950
79280
79280
79210
79160
79090
73700
73290
72970
72770
72650
66870
66980
67050
67160
67270
71150
71150
71220
71220
71220
63400
62870
62530
61680
61170
57330
57330
57370
57300
57140
56180
56180
56140
56030
56070
52720
52650
52550
52550
52370
50220
50160
50160
50220
49890
47470
47120
46790
46510
46180
44920
44890
44780
46970
49020
16
17
18
19
20
84180
83680
83180
82730
82240
79130
79130
79130
79160
79130
72290
71980
71620
71270
70990
67420
67570
67680
67940
68170
71190
71110
71030
70890
70880
60700
60330
60000
59600
59180
57180
57030
56990
56850
56810
56000
56000
55920
55630
55270
52300
52240
52170
52030
52000
49920
50020
49830
49800
49830
45870
45820
45760
45670
45640
49730
49960
49960
49960
49890
21
22
23
24
25
81800
81270
80830
80310
79840
79130
79280
79090
79090
79050
70720
70600
70290
69750
69180
e68370
e68570
e68770
e68970
e69170
70760
70490
70100
69560
69180
58850
58400
58010
57740
57780
56880
56810
56730
56810
56850
54980
54690
54510
54260
54050
51830
51790
51690
51590
51620
49700
49700
49660
49600
49600
45580
45540
45490
45460
45400
49920
49960
49920
49890
49760
26
27
28
29
30
31
79680
79680
79640
79640
79640
79600
79050
79010
79050
79050
79130
---
68620
68050
67490
67270
67240
67090
69370
69520
69680
69830
69990
70030
68730
68390
68020
-------
57670
57560
57600
57220
57180
57180
56510
56660
56660
56730
56660
---
53910
53840
53800
53770
53690
53660
51460
51420
51280
51250
51150
---
49540
49500
49470
49440
49270
49240
45310
45280
45160
45220
45130
45220
49540
49370
49110
48790
48500
---
MAX
MIN
(*)
(**)
92930
79600
2430.47
-14190
79560
79010
2430.35
-470
78780
67090
2427.31
-12040
70030
66870
2428.09
+2940
71220
68020
2427.56
-2010
67640
57180
2424.50
-10840
57370
56510
2424.36
-520
56550
53660
2423.53
-3000
53410
51150
2422.80
-2510
51020
49240
2422.22
-1910
49110
45130
2420.92
-4020
49960
44690
2421.99
+3280
CAL YR 2001
WTR YR 2002
e
(*)
(**)
MAX 269100
MAX 92930
MIN 67090
MIN 44690
(**) -172210
(**) -44430
Estimated
Elevation, at end of month, in feet.
Change in contents, in acre-feet.
161
GILA RIVER BASIN
09469500 GILA RIVER BELOW COOLIDGE DAM, AZ
LOCATION.--Lat 33° 10'10", long 110° 31'50", in SW1/4 sec. 17, T.3 S., R.18 E. (unsurveyed), Pinal County, Hydrologic Unit 15050100, on left bank 2,200 ft downstream from
Coolidge Dam.
DRAINAGE AREA.--12,886 mi2.
PERIOD OF RECORD.--July to Oct. 1899, Apr. 1900 to Mar. 1902, July to Sept. 1902, Dec. 1902 to Dec. 1904, Jan. to May 1905 (gage heights only), June to Nov. 1905;
Aug. 1910 to Feb. 1911 (gage heights only); Apr. 1914 to current year. Published as "at San Carlos" 1899–1911, as "near San Carlos" 1914–26, and as "at Coolidge Dam"
1927–38.
REVISED RECORDS.--WSP 629: 1915–16. WSP 1049: 1899–1904. WSP 1149: 19M), 1921, 1922(M), 1923, 1924(M). WSP 1283: Drainage area.
GAGE.--Water-stage recorder and Parshall flume. Datum of gage is 2,309.33 ft above sea level. Prior to Feb. 5, 1911, nonrecording gage at various sites and datums upstream
from mouth of San Carlos River. Apr. 29, 1914, to Mar. 8, 1937, water-stage recorder at various sites within 1 mi upstream from present site at different datums. Mar.
27, 1979 to Oct. 10, 1980, and since Oct. 4, 1983, supplementary water-stage recorder at site on left bank 1,000 ft upstream at datum 2,309.5 ft above sea level, used above
discharges at approximately 2,000 ft3/s, maximum capacity of parshall flume.
REMARKS.--Records good except for estimated daily discharges and those below 20 ft3/s, which are fair. Flow regulated by San Carlos Reservoir since Nov. 15, 1928. (See
sta 09469000.) Record includes flow of Warm Springs, which enters between the dam and gage. Large diversions above San Carlos Reservoir for irrigation, metallurgical
treatment of ore, and municipal supply; about 69,000 acres of land was irrigated, a considerable portion by pumping from ground water.
AVERAGE DISCHARGE (adjusted for storage in San Carlos Reservoir).--90 years (water years 1901, 1904, 1915–2002) 401 ft3/s, 290,500 acre-ft/yr; median of yearly mean
discharges, 250 ft3/s, 181,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--1914–28: Maximum discharge, 130,000 ft3/s Jan. 20, 1916, estimated on basis of peak discharge near Solomon and at Kelvin; no
flow at times.
1928–2000: Maximum discharge, 32,800 ft3/s Jan. 20, 21, 1993 from calculated discharge over Coolidge Dam; no flow at times prior to 1938; minimum daily since 1938,
0.18 ft3/s Oct. 5–9 and 19–21, 2000.
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 389 ft3/s Dec. 27; minimum daily discharge, 0.40 ft3/s Apr. 23.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1.8
1.8
1.8
1.8
1.8
1.7
1.7
1.7
1.7
1.7
1.8
2.0
2.0
2.0
2.0
1
2
3
4
5
249
248
275
293
293
0.81
0.81
0.81
0.81
0.81
206
306
306
306
304
118
120
131
138
141
85
85
85
85
89
234
234
234
234
258
e40
40
38
e38
e38
0.81
0.89
1.1
1.1
0.90
1.2
1.3
1.2
1.1
1.1
0.89
1.1
1.1
1.1
1.1
6
7
8
9
10
293
293
290
290
290
0.81
0.81
0.81
0.81
0.81
303
303
303
302
300
142
142
157
166
137
95
101
104
104
105
280
301
333
332
332
e34
e30
e30
29
27
0.81
0.93
0.48
1.1
0.42
1.1
1.4
1.5
1.5
1.7
1.1
1.0
1.1
1.1
1.1
1.8
138
233
214
175
11
12
13
14
15
252
228
227
228
229
0.81
0.81
0.81
0.81
0.81
299
240
185
166
166
106
99
99
99
99
106
106
106
106
104
333
332
330
336
341
26
30
31
31
31
0.42
0.58
0.78
0.76
0.74
1.6
e1.3
e1.1
1.1
1.1
1.1
1.1
1.1
1.1
1.1
175
159
157
138
139
2.0
49
115
117
176
16
17
18
19
20
229
229
229
229
229
0.81
0.81
0.81
0.81
0.81
214
239
238
238
238
100
70
53
53
53
101
114
124
124
124
296
262
258
259
260
30
30
30
29
29
0.75
0.81
0.81
64
94
1.1
1.1
1.1
1.1
0.81
1.1
1.1
1.1
1.1
1.1
140
53
2.2
2.4
2.4
175
120
113
117
88
21
22
23
24
25
229
229
226
219
218
0.81
0.81
0.81
0.81
0.81
185
148
246
341
361
53
53
54
54
54
124
207
275
275
275
260
262
174
116
114
29
11
0.40
0.42
0.59
93
92
92
93
94
0.81
0.81
0.81
0.81
0.81
1.1
1.2
1.5
1.9
2.2
2.0
2.0
2.0
2.0
1.9
27
1.7
25
52
49
26
27
28
29
30
31
e78
e1.1
e1.1
e0.99
e1.1
0.96
0.81
0.81
0.81
0.81
0.81
---
362
389
376
205
117
117
74
85
85
85
85
85
275
265
248
-------
109
107
108
e108
e108
e68
0.59
0.69
0.76
0.84
0.81
---
34
1.1
1.1
1.1
1.1
1.1
0.81
0.81
0.81
0.81
0.81
---
2.0
2.1
1.9
1.7
1.7
1.8
1.7
1.6
1.3
1.6
1.6
1.5
53
86
118
118
122
---
TOTAL 6327.25
MEAN
204.1
MAX
293
MIN
0.96
AC-FT
12550
24.30
0.810
0.81
0.81
48
8009
258.4
389
117
15890
2990
96.45
166
53
5930
3997
142.8
275
85
7930
7313
235.9
341
68
14510
686.10
22.87
40
0.40
1360
1758.0
56.71
233
1.3
3490
1742.0
58.07
176
1.7
3460
MAX 803
MAX 389
MIN 0.81
MIN 0.40
CAL YR 2001
WTR YR 2002
e
Estimated
TOTAL 125435.14
TOTAL 33595.74
MEAN 343.7
MEAN 92.04
675.69
21.80
94
0.42
1340
AC-FT 248800
AC-FT 66640
32.61
1.087
1.7
0.81
65
40.79
1.316
2.2
0.89
81
162
GILA RIVER BASIN
09470500 SAN PEDRO RIVER AT PALOMINAS, AZ
LOCATION.--Lat 31° 22'48", long 110° 06'38", in SW1/4, SE1/4, sec. 33, T.23 S., R.22 E., Cochise County, Hydrologic Unit 15050202, near left bank on downstream side of pier
of bridge on State Highway 92, 0.7 mi east of Palominas, 2.5 mi upstream from Green Brush Draw, 4.5 mi downstream from international boundary, and 12 mi southwest
of Bisbee.
DRAINAGE AREA.--737 mi2, of which 649 mi2 is in Mexico.
PERIOD OF RECORD.--May 1930 to Oct. 1933, May 1935 to July 1941, July 1950 to Sept. 30, 1981 (discontinued as a continuous-record station; converted to a crest-stage
partial-record station). Oct. 1995 to current year.
GAGE.--Water-stage recorder. Datum of gage is 4,187.62 ft above sea level (State Highway Department benchmark).
See WSP 1733 for history of changes prior to Nov. 24, 1955.
REMARKS.--Records good except for estimated daily discharges, which are fair. Small diversions for irrigation of a few hundred acres above station, mostly in Mexico.
Records show approximate flow of river at international boundary.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 22,000 ft3/s Aug. 14, 1940, gage height, 16.16 ft, present datum, from rating curve extended above 5,600 ft3/s
on basis of slope-area measurement of peak flow; no flow at times most years.
EXTREMES OUTSIDE PERIOD OF RECORD.--Greatest flood since at least 1906 occurred Sept. 28, 1926, gage height, about 23.9 ft, present datum, from floodmarks;
discharge not determined.
EXTREMES FOR CURRENT YEAR.--Maximum discharge (*) and (or) peak discharges above base of 2,400 ft3/s:
Date
July 29 ..........
Aug. 6 ...........
Time
Discharge (ft3/s)
0030
0115
*3,910
3,080
Gage height (ft)
*9.87
8.87
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
0.57
0.67
0.67
0.75
0.63
0.26
0.30
0.38
0.34
0.29
1.5
1.6
1.7
1.8
2.0
3.8
3.7
3.8
3.8
3.8
4.4
4.4
5.2
5.6
5.2
4.2
4.1
4.0
4.1
4.1
6
7
8
9
10
0.55
0.58
0.54
0.53
0.51
0.41
0.48
0.48
0.46
0.50
2.1
2.1
2.2
2.2
2.4
3.7
3.7
3.8
3.8
4.0
4.7
4.4
4.5
4.4
4.3
11
12
13
14
15
0.48
0.41
0.39
0.39
0.36
0.53
0.54
0.55
0.57
0.66
2.5
2.8
2.9
3.0
3.1
4.1
3.9
4.0
4.0
4.1
16
17
18
19
20
0.31
0.27
0.26
0.26
0.28
0.70
0.71
0.72
0.78
0.78
3.1
3.3
3.2
3.3
3.4
21
22
23
24
25
0.26
0.26
0.26
0.24
0.28
0.83
0.88
0.97
1.0
1.1
26
27
28
29
30
31
0.29
0.26
0.22
0.23
0.26
0.26
TOTAL
MEAN
MAX
MIN
AC-FT
12.23
0.395
0.75
0.22
24
APR
MAY
JUN
JUL
AUG
SEP
2.2
2.0
1.9
1.8
1.7
0.17
0.17
0.17
0.17
0.17
0.11
0.10
0.11
0.14
0.16
0.03
0.02
0.02
0.02
0.01
2.4
290
45
119
114
0.00
0.00
0.00
0.00
0.00
4.0
3.9
3.8
3.7
3.8
1.7
1.7
1.6
1.5
1.3
0.20
0.20
0.20
0.20
0.22
0.18
0.11
0.11
0.10
0.14
0.01
0.01
0.01
0.03
0.03
612
3.2
2.0
141
131
0.00
0.01
0.01
0.01
10
4.3
4.3
4.4
4.3
4.1
3.7
3.7
3.7
3.5
3.4
1.2
1.1
0.99
0.95
0.87
0.20
0.19
0.19
0.17
0.17
0.15
0.12
0.10
0.11
0.10
0.05
0.03
0.04
0.09
0.10
177
7.1
0.09
0.22
2.2
1.7
0.00
0.00
0.00
0.00
4.3
4.3
4.3
4.2
4.2
4.1
4.1
4.0
4.0
4.0
3.3
3.4
3.4
3.5
3.4
0.85
0.80
0.73
0.61
0.57
0.17
0.17
0.14
0.14
0.13
0.10
0.09
0.08
0.06
0.06
0.13
0.15
0.14
0.23
0.20
0.11
0.08
0.03
34
4.1
0.00
0.00
0.00
0.00
0.00
3.4
3.5
3.4
3.7
3.7
4.2
4.3
4.3
4.4
4.3
4.1
4.2
4.2
4.2
4.1
3.2
3.1
3.0
3.0
3.1
0.51
0.52
0.47
0.40
0.31
0.13
0.13
0.12
0.12
0.11
0.07
0.06
0.05
0.05
0.06
27
5.8
5.7
5.2
194
0.48
0.15
0.06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.2
1.3
1.4
1.4
1.4
---
3.8
3.9
3.7
3.7
3.8
3.8
4.3
4.4
4.5
4.9
4.6
4.4
4.1
4.2
4.2
-------
3.1
3.0
2.9
2.6
2.5
2.3
0.27
0.22
0.21
0.20
0.18
---
0.11
0.12
0.12
0.13
0.14
0.13
0.05
0.05
0.03
0.02
0.03
---
68
316
239
592
10
9.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
21.92
0.731
1.4
0.26
43
90.6
2.923
3.9
1.5
180
127.9
4.126
4.9
3.7
254
122.0
4.357
5.6
4.0
242
106.5
3.435
4.2
2.3
211
29.36
0.979
2.2
0.18
58
4.90
0.158
0.22
0.11
9.7
2.70
0.090
0.18
0.02
5.4
1473.14
47.52
592
0.01
2920
1685.22
54.36
612
0.00
3340
11.70
0.390
10
0.00
23
3.959
55.3
2000
0.000
1962
86.64
280
1959
0.26
1997
130.6
591
1954
2.68
1962
24.35
275
1958
0.027
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1950 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
40.70
770
1978
0.000
1966
6.586
133
2001
0.000
1966
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
20.48
414
1979
0.097
1954
19.89
452
1979
0.035
1954
8.769
73.5
1979
0.071
1954
FOR 2001 CALENDAR YEAR
8647.58
23.69
2210
0.13
0.14
17150
19
3.5
0.26
7.343
75.8
1978
0.22
1972
1.968
14.6
1979
0.000
1969
0.645
4.63
1979
0.000
1965
FOR 2002 WATER YEAR
3688.17
10.10
Aug 14
Jun 8
Jun 7
612
0.00
0.00
7320
4.4
0.70
0.00
Aug 6
Jul 6
Aug 24
WATER YEARS 1950 - 2002
30.33
93.3
4.16
10300
0.00
0.00
21970
29
1.2
0.00
1979
1997
Oct 9 1977
Jun 16 1951
Jun 6 1953
163
GILA RIVER BASIN
09470520 GREENBUSH DRAW NEAR PALOMINAS, AZ
LOCATION.--Lat 31° 22'49", long 110° 04'18", in NW1/4NE1/4NE1/4, sec. 2, T.24 S., R.22 E., Cochise County, Hydrologic Unit 15050202, on left bank on downstream side of State
Highway 92 bridge, approximately 2.7 mi east of Palominas, and approximately 3.4 mi upstream from the confluence of the San Pedro River.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--June to Sept. 2000.
GAGE.--Water-stage recorder. Elevation of gage is 4,280 ft above sea level, from topographic map.
REMARKS.--Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge , 516 ft3/s, Oct. 23, 2000, gage height, 6.82 ft.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 218 ft3/s Aug. 4 at 2015, gage height, 6.03 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15
0.44
43
7.2
0.28
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6.6
0.00
0.00
0.00
0.23
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.47
0.00
0.00
0.00
2.8
0.20
0.02
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.25
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
1.92
0.062
1.2
0.00
0.00
3.8
75.26
2.428
43
0.00
0.00
149
0.51
0.017
0.28
0.00
0.00
1.0
1.622
4.87
2000
0.000
2001
0.021
0.062
2002
0.000
2000
3.797
7.59
2000
0.000
2001
0.000
0.000
2000
0.000
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
7.865
15.7
2001
0.000
2002
1.047
2.09
2001
0.000
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
0.000
0.000
2001
0.000
2001
0.000
0.000
2001
0.000
2001
0.000
0.000
2001
0.000
2001
0.000
0.000
2001
0.000
2001
FOR 2001 CALENDAR YEAR
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.000
2001
0.000
2001
0.000
0.000
2001
0.000
2001
FOR 2002 WATER YEAR
77.69
0.213
Jan
Jan
Jan
1
1
1
43
0.00
0.00
154
0.00
0.00
0.00
Aug
Oct
Oct
4
1
1
WATER YEARS 2000 - 2002
1.508
1.51
2001
1.51
2001
253
Oct 23 2000
0.00 Jun 1 2000
0.00 Jun 1 2000
1090
0.00
0.00
0.00
164
GILA RIVER BASIN
09470700 BANNING CREEK NEAR BISBEE, AZ
LOCATION.--Lat 31° 30'12.5", long 110° 00'19", Cochise County, Hydrologic Unit 15050202, 6 mi (approx.) northeast of Bisbee, AZ. Gage is on the right bank, 8 mi (approx.)
above the confluence with the San Pedro River.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Feb. 8, 2001, to current year.
GAGE.--Water-stage recorder and concrete control. Elevation of gage is 4,767.81 ft above sea level.
REMARKS.--Records good.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 1,288 ft3/s Aug. 4 at 1130, gage height, 5.04 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
19
78
26
0.59
0.52
0.39
0.33
0.30
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
12
8.2
4.9
4.3
2.6
0.29
0.28
0.28
0.27
0.26
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.9
1.2
0.76
0.51
0.33
0.23
0.20
0.18
0.16
0.15
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.29
0.24
0.22
3.8
1.9
0.13
0.12
0.12
0.10
0.08
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.4
0.99
0.79
0.59
0.49
0.07
0.06
0.06
0.05
0.05
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.61
0.77
0.80
0.89
0.67
0.61
0.05
0.05
0.05
0.05
0.04
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
174.76
5.637
78
0.00
0.80
347
5.51
0.184
0.59
0.04
0.14
11
0.000
0.000
2001
0.000
2001
2.295
2.29
2001
2.29
2001
6.593
6.59
2001
6.59
2001
0.084
0.084
2001
0.084
2001
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2001 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.000
0.000
2002
0.000
2002
0.000
0.000
2002
0.000
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
-----------
0.000
0.000
2002
0.000
2002
0.000
0.000
2002
0.000
2002
0.042
0.085
2001
0.000
2002
0.070
0.14
2001
0.000
2002
FOR 2002 WATER YEAR
180.27
0.494
78
0.00
0.00
358
0.26
0.00
0.00
Aug
Oct
Oct
4
1
1
0.027
0.054
2001
0.000
2002
WATER YEARS 2001 - 2002
49
0.00
0.00
Aug 1 2001
May 13 2001
May 13 2001
165
GILA RIVER BASIN
09470750 RAMSEY CANYON NEAR SIERRA VISTA, AZ
LOCATION.--Lat 31° 26'48", long 110° 18'21", in NW1/4SW1/4NW1/4 sec. 10, T.23 S., R.20 E., Cochise County, Hydrologic Unit 15050202, on left bank 3.4 mi northwest of
Nicksville, in the Coronado National Forest, and approximately 8.7 mi upstream from the confluence of the San Pedro River.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--May 2000 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,525 ft above sea level from topographic map.
REMARKS.--Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 117 ft3/s Oct. 22, 2000, gage height 3.44 ft; no flow at times.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 0.51 ft3/s Dec. 11 at 1145, gage height 1.51 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.24
0.20
0.20
0.25
0.21
0.12
0.12
0.12
0.11
0.12
0.14
0.13
0.12
0.15
0.13
0.12
0.13
0.13
0.13
0.13
0.12
0.13
0.28
0.41
0.33
0.12
0.13
0.13
0.13
0.13
0.08
0.06
0.06
0.06
0.06
0.03
0.03
0.03
0.03
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.03
0.02
0.10
0.11
0.11
0.11
0.10
6
7
8
9
10
0.20
0.19
0.16
0.15
0.13
0.12
0.12
0.11
0.12
0.12
0.13
0.13
0.13
0.13
0.19
0.13
0.13
0.13
0.12
0.13
0.25
0.22
0.19
0.17
0.16
0.13
0.13
0.16
0.17
0.16
0.07
0.07
0.06
0.06
0.06
0.03
0.03
0.03
0.03
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.10
0.11
0.13
0.15
0.17
11
12
13
14
15
0.12
0.11
0.10
0.08
0.07
0.11
0.10
0.10
0.11
0.11
0.33
0.19
0.13
0.13
0.14
0.13
0.13
0.13
0.13
0.13
0.14
0.14
0.13
0.13
0.13
0.16
0.15
0.15
0.16
0.17
0.06
0.06
0.06
0.06
0.05
0.02
0.01
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.02
0.02
0.02
0.02
0.16
0.12
0.10
0.08
0.07
16
17
18
19
20
0.07
0.07
0.06
0.05
0.05
0.11
0.11
0.10
0.10
0.11
0.13
0.13
0.12
0.12
0.12
0.13
0.14
0.10
0.10
0.10
0.13
0.13
0.13
0.13
0.13
0.17
0.18
0.21
0.22
0.22
0.05
0.05
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.03
0.03
0.07
0.06
0.06
0.06
0.06
21
22
23
24
25
0.05
0.05
0.06
0.06
0.06
0.11
0.10
0.12
0.12
0.12
0.11
0.11
0.12
0.12
0.12
0.10
0.10
0.10
0.11
0.11
0.13
0.13
0.13
0.13
0.13
0.19
0.14
0.13
0.14
0.13
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.03
0.03
0.03
0.03
0.05
0.05
0.04
0.04
0.04
26
27
28
29
30
31
0.05
0.06
0.07
0.07
0.08
0.10
0.12
0.13
0.13
0.13
0.13
---
0.12
0.12
0.11
0.11
0.11
0.12
0.11
0.10
0.14
0.14
0.13
0.13
0.13
0.13
0.13
-------
0.13
0.12
0.09
0.09
0.08
0.08
0.03
0.03
0.03
0.03
0.03
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.03
0.03
0.04
0.06
0.08
0.09
0.04
0.04
0.04
0.04
0.06
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
3.42
0.110
0.25
0.05
0.08
6.8
3.45
0.115
0.13
0.10
0.12
6.8
4.19
0.135
0.33
0.11
0.13
8.3
3.77
0.122
0.14
0.10
0.13
7.5
4.62
0.165
0.41
0.12
0.13
9.2
4.50
0.145
0.22
0.08
0.14
8.9
1.48
0.049
0.08
0.03
0.05
2.9
0.59
0.019
0.03
0.00
0.03
1.2
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.72
0.023
0.09
0.00
0.02
1.4
2.47
0.082
0.17
0.04
0.07
4.9
0.077
0.17
2001
0.000
2002
0.098
0.20
2001
0.000
2002
0.615
1.41
2001
0.023
2002
0.296
0.62
2001
0.082
2002
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
4.674
9.24
2001
0.11
2002
3.043
5.97
2001
0.11
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
0.840
1.54
2001
0.14
2002
0.374
0.63
2001
0.12
2002
0.313
0.46
2001
0.16
2002
FOR 2001 CALENDAR YEAR
187.02
0.512
2.4
0.05
0.05
371
1.1
0.47
0.10
0.386
0.63
2001
0.15
2002
0.595
1.14
2001
0.049
2002
0.186
0.53
2001
0.013
2000
FOR 2002 WATER YEAR
29.21
0.080
Aug 20
Jul 16
Oct 18
0.41
0.00
0.00
58
0.15
0.08
0.00
Feb 4
May 13
May 25
WATER YEARS 2000 - 2002
0.984
1.89
2001
0.080
2002
48
Oct 23 2000
0.00 Jun 4 2000
0.00 Jun 8 2000
713
1.7
0.14
0.00
166
GILA RIVER BASIN
09470800 GARDEN CANYON NEAR FORT HUACHUCA, AZ
LOCATION.--Lat 31° 28'22", long 110° 20'50", in NW1/4SE1/4 sec. 31, T.22 S., R.20 E. (unsurveyed), on right bank in Fort Huachuca (U.S. Army) Military Reservation, 2.4 mi
southeast of Huachuca Peak, 5.5 mi south of Fort Huachuca, and 6.4 mi northwest of Miller Peak.
DRAINAGE AREA.--8.38 mi2.
PERIOD OF RECORD.--Oct. 1959 to June 1965, Dec. 1993 to current year.
GAGE.--Water-stage recorder and concrete control with 90° V-notch weir. Elevation of gage is 5,400 ft above sea level from topographic map.
REMARKS.--Records good except for estimated daily discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 382 ft3/s Oct. 23, 2000, gage height 3.69 ft; no flow at times.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 20 ft3/s and (or) maximum (*):
Date
Aug. 19 .........
Time
Discharge (ft3/s)
2330
*5.8
Gage height (ft)
2.40
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.79
0.73
0.74
0.77
0.73
0.47
0.50
0.47
0.43
0.44
0.48
0.51
0.49
0.53
0.55
0.45
0.47
0.49
0.47
0.48
0.41
0.41
0.55
0.57
0.55
0.30
0.30
0.31
0.30
0.28
0.11
0.10
0.10
0.10
0.10
0.04
0.04
0.04
0.04
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.85
0.87
0.49
0.43
0.40
0.35
0.31
6
7
8
9
10
0.72
0.72
0.70
0.69
0.69
0.47
0.45
0.45
0.44
0.43
0.55
0.55
0.54
0.54
e0.55
0.47
0.45
0.44
0.42
0.41
0.55
0.55
0.54
0.54
0.53
0.26
0.24
0.23
0.22
0.22
0.10
0.10
0.09
0.09
0.08
0.04
0.03
0.03
0.03
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.93
0.73
0.96
2.1
1.7
0.29
0.28
0.31
0.33
0.31
11
12
13
14
15
0.67
0.65
0.64
0.63
0.62
0.43
0.42
0.40
0.45
0.47
e0.55
0.55
0.55
0.55
0.58
0.41
0.42
0.41
0.40
0.40
0.53
0.51
0.47
0.46
0.44
0.21
0.20
0.19
0.18
0.19
0.08
0.08
0.08
0.07
0.06
0.02
0.02
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.3
1.1
0.85
0.73
0.63
0.26
0.22
0.20
0.17
0.14
16
17
18
19
20
0.61
0.60
0.59
0.59
0.58
0.45
0.44
0.43
0.41
0.43
0.58
0.55
0.53
0.52
0.51
0.38
0.38
0.37
0.38
0.37
0.41
0.40
0.40
0.41
0.40
0.19
0.19
0.19
0.19
0.19
0.06
0.06
0.06
0.06
0.06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.70
0.62
0.58
9.4
4.2
0.13
0.11
0.11
0.10
0.09
21
22
23
24
25
0.57
0.56
0.56
0.56
0.56
0.45
0.42
0.41
0.43
0.43
0.49
0.49
0.51
0.48
0.49
0.37
0.34
0.36
0.39
0.39
0.38
0.37
0.35
0.32
0.33
0.17
0.16
0.15
0.14
0.15
0.05
0.05
0.04
0.04
0.06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.6
1.8
1.5
1.2
1.1
0.08
0.07
0.06
0.05
0.04
26
27
28
29
30
31
0.55
0.53
0.50
0.51
0.50
0.46
0.42
0.46
0.48
0.50
0.47
---
0.50
0.47
0.46
0.43
0.42
0.43
0.38
0.35
0.39
0.39
0.43
0.42
0.32
0.31
0.31
-------
0.15
0.13
0.12
0.12
0.12
0.12
0.05
0.06
0.05
0.05
0.04
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.90
0.79
0.69
0.72
0.62
0.53
0.04
0.03
0.03
0.03
0.03
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
19.32
0.623
0.79
0.46
38
0.07
13.35
0.445
0.50
0.40
26
0.05
15.93
0.514
0.58
0.42
32
0.06
12.68
0.409
0.49
0.34
25
0.05
12.32
0.440
0.57
0.31
24
0.05
6.11
0.197
0.31
0.12
12
0.02
2.13
0.071
0.11
0.04
4.2
0.01
0.42
0.014
0.04
0.00
0.8
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
40.70
1.313
9.4
0.00
81
0.16
5.49
0.183
0.49
0.03
11
0.02
0.184
0.74
1995
0.000
1961
0.581
2.23
1998
0.000
1994
2.618
11.4
1963
0.001
1997
2.126
14.5
1963
0.038
1997
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1960 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
2.516
28.1
2001
0.000
1998
1.450
11.9
2001
0.000
1998
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
1.226
7.03
1995
0.10
1997
2.036
11.5
1960
0.091
2000
1.981
12.1
1995
0.021
2000
FOR 2001 CALENDAR YEAR
566.47
1.552
24
0.24
0.26
1120
0.19
2.4
1.1
0.41
1.542
6.15
1998
0.039
2000
1.107
5.18
1998
0.001
2000
0.470
1.94
1998
0.000
2000
FOR 2002 WATER YEAR
128.45
0.352
Aug 14
Jun 18
Jun 14
9.4
Aug 19
0.00 May 15
0.00 May 15
255
0.042
0.63
0.31
0.00
WATER YEARS 1960 - 2002
1.566
5.06
2001
0.099
1997
260
Oct 23 2000
0.00 May 29 1961
0.00 May 29 1961
1130
0.19
3.7
0.30
0.00
167
GILA RIVER BASIN
09471000 SAN PEDRO RIVER AT CHARLESTON, AZ
LOCATION.--Lat 31° 37'33", long 110° 10'26", in NE1/4NE1/4 sec. 11, T.21 S., R.21 E., Cochise County, Hydrologic Unit 15050202, in Spanish land grant of San Juan de las
Boquillas y Nogales, at downstream side of pier near center of highway bridge, 0.3 mi south of Charleston, 1.5 mi upstream from Charleston damsite, and 9 mi upstream
from Babocomari River.
DRAINAGE AREA.--1,234 mi2, of which 696 mi2 is in Mexico.
PERIOD OF RECORD.--Jan. and Feb. 1904 (gage heights only); Mar. 1904 to Aug. 1906; Nov. 1910 to Dec. 1911 (gage heights only); Sept. 1912 to current year. Monthly
discharge only Oct. 1926 to May 1928 and Dec. 1933 to Apr. 1935, published in WSP 1313.Published as "near Lewis Springs" 1910–11, and as "near Fairbank" 1911–26.
REVISED RECORDS.--WSP 1119: 1939(M). WSP 1213: 1914, 1916(M), 1918(M), 1919, 1920(M), 1922–23(M), WDR AZ–90–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,954.01 ft above sea level. Prior to Dec. 1, 1942, nonrecording gage or water-stage recorder at various sites within 6.5 mi
downstream at different datums.
REMARKS.-Records fair, except for high-flow records and estimated daily discharges, which are poor. Diversions above station, mostly by pumping from ground water, for
irrigation of 3,200 acres in 1978, excluding an unknown amount in Mexico. Record shows flow available at Charleston damsite.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, about 98,000 ft3/s Sept. 28, 1926, gage height, 21.9 ft, site and datum then in use, by slope-area measurement
of peak flow; minimum daily discharge since 1928, 0.05 ft3/s June 14–16, 1994, gage height, 2.02 ft.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,000 ft3/s and (or) maximum (*):
Date
Time
July 26...........
Discharge (ft3/s) Gage height (ft)
2300
*679
*4.73
Minimum daily discharge, 0.81 ft3/s, June 25, 2002.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
4.6
4.7
4.8
8.2
4.7
5.2
5.3
5.4
5.3
5.4
8.6
8.7
8.8
9.2
9.5
14
14
14
14
14
14
14
14
14
14
15
16
16
16
16
13
13
12
12
12
6.2
6.2
6.0
5.8
5.6
2.3
2.2
1.9
2.0
2.0
1.1
1.1
1.1
1.1
1.1
13
91
29
63
45
2.7
2.5
2.5
2.5
2.4
6
7
8
9
10
4.4
4.4
4.4
4.4
4.3
5.6
5.8
5.9
6.0
6.1
9.6
9.9
10
10
10
14
14
14
14
13
15
15
15
15
14
16
16
16
17
16
11
11
11
11
11
5.4
5.2
5.1
4.8
4.6
1.9
1.9
1.8
1.7
1.6
1.0
1.0
1.2
1.7
1.8
e216
49
27
16
58
2.3
2.6
4.8
24
6.7
11
12
13
14
15
4.3
4.2
4.2
4.1
4.1
6.2
6.1
6.1
6.4
6.6
11
11
11
12
12
14
14
14
14
14
14
14
14
14
14
16
16
16
16
16
10
9.9
9.5
8.8
8.2
4.4
4.2
4.1
3.9
3.7
1.6
1.5
1.4
1.4
1.4
1.7
1.9
1.8
1.9
2.3
32
24
17
e13
e11
3.8
3.5
2.8
2.5
2.3
16
17
18
19
20
4.1
4.1
4.1
4.1
4.1
6.8
6.9
6.9
6.8
6.8
12
12
13
12
12
14
14
14
14
14
14
14
14
13
14
17
17
17
e17
e16
8.1
8.0
7.9
7.7
7.5
3.5
3.5
3.3
3.1
3.1
1.3
1.2
1.2
1.2
1.1
2.7
3.7
4.1
5.6
4.2
11
6.3
5.8
9.9
15
2.1
2.2
2.1
2.0
2.0
21
22
23
24
25
4.2
4.3
4.3
4.3
4.6
7.0
7.2
7.4
7.4
7.4
13
13
13
13
14
14
14
14
14
14
14
14
14
14
14
e15
15
14
14
14
7.7
7.6
7.4
7.3
7.1
3.0
2.9
2.9
2.8
2.7
1.1
1.1
1.0
1.00
0.81
3.8
4.6
4.8
4.5
9.6
7.8
5.9
5.1
4.2
3.8
2.0
1.9
1.9
1.8
1.8
26
27
28
29
30
31
4.5
4.5
4.7
4.9
5.0
5.0
7.7
7.8
7.9
8.0
8.3
---
14
14
14
14
14
13
14
13
14
14
14
14
14
15
15
-------
14
14
14
14
14
14
7.0
7.0
6.9
6.7
6.5
---
2.7
2.8
2.7
2.6
2.5
2.4
0.90
0.97
1.0
1.0
1.1
---
3.4
3.1
2.9
2.9
2.9
3.1
1.8
1.7
1.7
1.8
2.0
---
140.6
4.535
8.2
4.1
4.4
279
0.00
197.7
6.590
8.3
5.2
6.7
392
0.01
432
13.94
14
13
14
857
0.01
397
14.18
15
13
14
787
0.01
480
15.48
17
14
16
952
0.01
273.8
9.127
13
6.5
8.2
543
0.01
121.7
3.926
6.2
2.4
3.5
241
0.00
42.58
1.419
2.3
0.81
1.3
84
0.00
400.4
12.92
133
1.0
2.7
794
0.01
797.1
25.71
216
2.9
11
1580
0.02
96.7
3.223
24
1.7
2.2
192
0.00
11.82
167
1925
1.19
1990
138.3
876
1921
0.55
1997
210.7
968
1954
9.97
1962
80.83
1887
1926
4.15
1980
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
361.3
11.65
14
8.6
12
717
0.01
APR
MAY
JUN
JUL
56
57
47
e133
23
15
AUG
SEP
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1904 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
42.22
1087
1978
2.87
1996
18.35
132
2001
4.71
1999
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
46.36
1230
1915
5.52
1999
39.83
507
1979
5.81
1999
27.83
217
1915
7.18
1923
FOR 2001 CALENDAR YEAR
9420.2
25.81
1290
Aug 14
2.9
Jun 16
2.9
Jun 13
18680
0.021
35
12
4.1
24.01
160
1915
8.04
1999
13.27
66.5
1905
3.03
1913
8.329
37.2
1917
2.42
1918
FOR 2002 WATER YEAR
3740.88
10.25
216
Aug 6
0.81 Jun 25
0.95 Jun 23
7420
0.008
16
7.1
1.8
WATER YEARS 1904 - 2002
55.33
206
1915
11.0
1997
28800
Sep 27 1926
0.05 Jul 14 1994
0.06 Jul 11 1994
40090
0.045
70
13
3.6
168
GILA RIVER BASIN
09471310 HUACHUCA CANYON NEAR FORT HUACHUCA, AZ
LOCATION.--Lat 31° 31'01", long 110° 23'13", in NE1/4SW1/4 sec.14, T.22 S., R.19 E. (unsurveyed), Cochise County, Hydrologic Unit 15050202, on right bank in Fort Huachuca
(U.S. Army) Military Reservation, 1.9 mi north of Huachuca Peak, 9.5 mi above confluence with the Babocomari River.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Apr. 2000 to current year.
GAGE.--Water-stage recorder and concrete control with 90° V-notch weir. Elevation of gage is 5,600 ft above sea level from topographic map.
REMARKS.--Records good except for estimated daily discharges, which are fair.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 30 ft3/s Aug. 5 at 1245, gage height 3.52 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.16
0.16
0.16
0.16
0.14
0.10
0.10
0.10
0.10
0.10
0.11
0.11
0.11
0.12
0.11
0.10
0.10
0.10
0.10
0.10
0.10
0.11
0.11
0.16
0.15
0.11
0.11
0.11
0.11
0.10
0.07
0.07
0.06
0.06
0.06
0.17
0.11
0.04
0.03
0.03
0.01
0.01
0.03
0.03
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.00
0.03
e6.6
0.12
0.11
0.11
0.10
0.10
6
7
8
9
10
0.15
0.15
0.15
0.15
0.14
0.10
0.10
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.10
0.10
0.10
0.10
0.10
0.11
0.11
0.11
0.11
0.10
0.11
0.11
0.11
0.10
0.09
0.06
0.07
0.07
0.07
0.07
0.03
0.03
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.00
0.00
0.00
0.00
0.00
e3.0
e0.38
e0.29
e0.23
e0.20
0.10
0.11
0.13
0.15
0.14
11
12
13
14
15
0.13
0.12
0.12
0.12
0.12
0.10
0.10
0.11
0.11
0.11
0.13
0.12
0.10
0.11
0.11
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.11
0.09
0.09
0.09
0.09
0.08
0.07
0.06
0.06
0.07
0.07
0.02
0.02
0.02
0.03
0.03
0.02
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
e0.19
e0.18
e0.16
e0.16
e0.15
0.13
0.10
0.08
0.08
0.07
16
17
18
19
20
0.12
0.12
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.12
0.13
0.18
0.24
0.12
0.09
0.09
0.09
0.09
0.09
0.06
0.06
0.07
0.07
0.07
0.04
0.04
0.03
0.02
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.00
0.00
e0.16
e0.15
e0.12
e0.09
e0.11
0.07
0.07
0.07
0.07
0.07
21
22
23
24
25
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.10
0.10
0.10
0.10
0.10
0.09
0.09
0.09
0.09
0.09
0.11
0.11
0.11
0.11
0.11
0.08
0.09
0.09
0.09
0.09
0.07
0.07
0.06
0.05
0.05
0.02
0.02
0.01
0.01
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.10
e0.10
e0.11
e0.11
e0.12
0.06
0.06
0.05
0.04
0.04
26
27
28
29
30
31
0.11
0.11
0.10
0.10
0.10
0.10
0.11
0.11
0.11
0.11
0.11
---
0.10
0.10
0.10
0.10
0.10
0.10
0.09
0.09
0.11
0.10
0.10
0.10
0.11
0.11
0.11
-------
0.09
0.09
0.08
0.07
0.07
0.07
0.05
0.05
0.09
0.17
0.16
---
0.04
0.03
0.02
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
---
0.01
0.04
0.00
0.00
0.00
0.00
e0.13
e0.13
0.11
0.12
0.12
0.12
0.04
0.04
0.04
0.04
0.04
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
3.87
0.12
0.16
0.10
0.12
7.7
3.21
0.11
0.11
0.10
0.11
6.4
3.29
0.11
0.13
0.10
0.10
6.5
2.99
0.096
0.11
0.09
0.10
5.9
3.35
0.12
0.24
0.10
0.11
6.6
2.86
0.092
0.11
0.07
0.09
5.7
2.14
0.071
0.17
0.05
0.07
4.2
0.97
0.031
0.17
0.01
0.02
1.9
0.25
0.008
0.03
0.00
0.01
0.5
0.06
0.002
0.04
0.00
0.00
0.1
13.49
0.44
6.6
0.00
0.12
27
2.43
0.081
0.15
0.04
0.07
4.8
0.084
0.16
2001
0.008
2002
0.11
0.21
2001
0.002
2002
0.31
0.44
2002
0.24
2001
0.27
0.44
2000
0.081
2002
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
2.76
5.40
2001
0.12
2002
1.76
3.42
2001
0.11
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.72
1.34
2001
0.11
2002
0.35
0.60
2001
0.096
2002
0.22
0.33
2001
0.12
2002
FOR 2001 CALENDAR YEAR
97.66
0.27
1.2
0.08
0.10
194
0.42
0.24
0.11
0.21
0.32
2001
0.092
2002
0.23
0.39
2001
0.071
2002
0.19
0.35
2001
0.031
2002
FOR 2002 WATER YEAR
38.91
0.11
Jan 1
Aug 7
Oct 28
6.6
0.00
0.00
77
0.13
0.10
0.00
Aug 5
Jun 12
Jun 16
WATER YEARS 2000 - 2002
0.60
1.09
0.11
50
0.00
0.00
434
1.3
0.14
0.02
2001
2002
Oct 23 2000
Jun 12 2002
Jun 16 2002
169
GILA RIVER BASIN
09471380 UPPER BABOCOMARI RIVER NEAR HUACHUCA CITY, AZ
LOCATION.--Lat 31° 38'06", long 110° 25'29", sec. 10, T.23 S., R.20 E. (unsurveyed), Cochise County, Hydrologic Unit 15050202, San Ignacio del Babocomari Land Grant,
approximately 5.3 mi west of Huachuca City, on the left bank, approximately 18.1 mi from the confluence with the San Pedro River.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--July 2000 to current year.
GAGE.--Water-stage recorder.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,870 ft3/s Oct. 23, 2000, gage height, 8.22 ft.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 2,220 ft3/s Sept. 8 at 2200, gage height, 7.86 ft. Minimum daily discharge, 0.25 ft3/s July 18, Sept. 12–16.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
1
2
3
4
5
8.2
11
7.3
12
5.1
3.2
3.2
3.3
3.2
3.2
3.9
3.9
5.5
4.9
5.2
2.4
2.5
2.6
2.5
2.5
6
7
8
9
10
4.5
6.6
4.4
3.9
3.5
4.0
4.3
4.2
4.2
4.4
5.5
6.7
6.2
5.9
4.9
11
12
13
14
15
3.4
3.6
3.6
3.9
4.1
2.9
2.7
2.7
4.6
3.9
16
17
18
19
20
4.2
4.5
5.4
5.6
4.4
21
22
23
24
25
26
27
28
29
30
31
TOTAL
MEAN
MAX
MIN
MED
AC-FT
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
3.2
2.9
3.7
3.1
3.5
0.86
0.85
e1.1
e1.1
1.2
0.96
1.00
0.96
0.92
0.93
0.55
0.56
0.55
0.54
0.52
0.47
0.46
0.49
0.50
0.52
0.30
0.31
0.31
0.30
0.31
0.26
0.29
68
1.3
3.9
0.54
0.54
0.55
0.56
0.57
2.4
2.6
2.7
2.7
2.6
2.6
2.5
2.7
2.6
2.5
1.2
1.1
1.1
1.1
1.1
0.89
0.92
0.90
0.85
0.79
0.52
0.53
0.52
0.50
0.50
0.51
0.48
0.47
0.46
0.48
0.30
0.29
0.29
0.29
0.28
e2.2
e1.0
e0.80
e0.70
e0.62
0.60
0.58
194
173
0.40
5.3
e6.9
4.1
3.9
4.2
2.6
2.5
2.4
2.6
2.6
2.4
2.3
2.3
2.0
1.3
1.1
1.1
1.2
1.2
1.2
0.79
0.81
0.78
0.77
0.83
0.50
0.51
0.54
0.55
0.55
0.47
0.44
0.42
0.42
0.41
0.28
0.27
0.27
0.26
135
e0.57
e0.54
e0.53
e0.53
0.52
0.26
0.25
0.25
0.25
0.25
4.1
4.1
4.3
4.1
4.1
4.7
4.3
3.8
3.3
3.0
2.6
3.2
3.9
3.7
3.4
1.3
1.2
1.2
1.3
1.3
1.1
1.2
1.3
1.3
1.2
0.82
0.80
0.79
0.80
0.78
0.54
0.55
0.56
0.57
0.58
0.39
0.37
0.37
0.37
0.35
27
0.26
0.25
0.28
0.30
0.54
0.55
0.56
0.58
0.58
0.25
0.26
0.26
0.27
0.27
3.9
3.7
3.6
4.2
5.7
4.4
4.3
2.8
2.6
2.8
3.0
2.9
2.8
3.3
3.1
3.0
3.4
3.5
3.4
3.8
1.3
1.3
1.2
1.2
1.1
1.3
1.2
1.1
1.2
1.2
0.78
0.78
0.74
0.77
0.75
0.59
0.58
0.58
0.62
0.59
0.34
0.33
0.33
0.32
0.32
0.31
0.34
0.33
0.36
0.39
0.54
0.53
0.52
0.51
0.53
0.27
0.26
0.26
0.26
0.26
6.2
5.7
6.3
5.4
4.5
3.5
2.9
3.3
5.3
7.2
4.6
---
2.8
2.7
2.7
2.6
2.7
2.6
3.1
3.6
4.0
5.2
4.8
3.7
1.1
0.97
0.89
-------
1.1
1.2
1.1
1.1
1.1
0.99
0.67
0.66
0.65
0.63
0.60
---
0.58
0.55
0.52
0.48
0.47
0.48
0.32
0.32
0.32
0.32
0.31
---
0.44
260
0.72
0.27
0.26
0.26
0.52
0.53
0.53
0.54
0.57
0.55
0.26
0.26
0.26
0.26
0.27
---
161.9
5.223
12
3.4
4.5
321
114.9
3.830
7.2
2.6
4.0
228
127.3
4.106
6.9
2.6
3.9
252
96.5
3.113
5.2
2.4
2.7
191
54.96
1.963
3.7
0.89
1.7
109
35.20
1.135
1.3
0.85
1.1
70
24.12
0.804
1.0
0.60
0.79
48
16.78
0.541
0.62
0.47
0.55
33
12.08
0.403
0.52
0.31
0.40
24
430.83
13.90
260
0.25
0.30
855
90.44
2.917
68
0.26
0.54
179
376.53
12.55
194
0.25
0.26
747
1.905
3.41
2001
0.40
2002
9.164
13.9
2002
4.43
2001
7.785
16.4
2000
2.92
2002
5.652
12.6
2002
0.061
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
33.35
61.5
2001
5.22
2002
12.54
21.2
2001
3.83
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
6.860
9.61
2001
4.11
2002
6.394
9.67
2001
3.11
2002
4.869
7.77
2001
1.96
2002
FOR 2001 CALENDAR YEAR
2137.66
5.857
35
0.12
0.21
4240
11
5.1
1.3
5.900
10.7
2001
1.14
2002
4.739
8.67
2001
0.80
2002
2.348
4.15
2001
0.54
2002
FOR 2002 WATER YEAR
1541.54
4.223
Sep 14
Sep 20
Sep 18
260
0.25
0.25
3060
4.5
1.1
0.30
Jul 27
Jul 18
Sep 11
WATER YEARS 2000 - 2002
8.378
12.5
2001
4.22
2002
1160
Oct 23 2000
0.00 Aug 26 2000
0.02 Sep 13 2000
6070
11
3.3
0.39
170
GILA RIVER BASIN
09471400 BABOCOMARI RIVER NEAR TOMBSTONE, AZ
LOCATION.--Lat 31° 42'01", long 110° 13'35", in NW1/4NE1/4NW1/4 sec. 17, T.20 S., R.21 E., Cochise County, Hydrologic Unit 15050202, gage is on the left bank, approximately
2.4 mi southwest of Fairbanks, and approximately 3.1 mi upstream from confluence with the San Pedro River.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Mar. 1999 to current year.
GAGE.--Water-stage recorder.
REMARKS.--Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge 862 ft3/s, Oct. 23, 2000, gage height 5.28 ft; minimum daily, 0.01 ft3/s June 17, 2000.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 796 ft3/s Aug. 3 at 1330, gage height 5.18 ft. Minimum daily discharge, 0.0 ft3/s June 13–July 17.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.12
0.18
13
3.2
0.42
0.61
0.64
0.66
0.64
0.64
0.95
0.97
0.97
0.96
0.96
1.2
1.2
1.2
1.2
1.2
1.1
1.1
1.1
1.1
0.98
1.3
1.3
e1.1
e1.1
1.4
1.3
1.3
1.3
1.2
1.2
APR
0.84
0.88
0.88
0.86
0.79
0.14
0.12
0.11
0.11
0.11
0.00
0.00
0.00
0.00
0.00
0.64
0.73
50
12
4.0
0.43
0.41
0.39
0.35
0.31
6
7
8
9
10
0.36
0.39
0.42
0.45
0.45
0.70
0.71
0.67
0.67
0.69
0.98
0.99
1.0
1.0
0.99
1.3
1.3
1.3
1.3
1.3
0.98
0.97
0.97
0.96
0.96
1.3
1.3
1.4
1.4
1.4
1.1
1.1
1.1
1.1
1.1
0.73
0.72
0.70
0.67
0.64
0.10
0.08
0.07
0.05
0.04
0.00
0.00
0.00
0.00
0.00
20
1.3
0.99
0.92
1.4
0.29
0.32
0.58
31
17
11
12
13
14
15
0.47
0.51
0.53
0.55
0.58
0.70
0.66
0.67
0.70
0.73
1.1
1.1
1.1
1.1
1.1
1.3
1.3
1.3
1.3
1.3
0.97
0.97
1.0
0.99
1.1
1.4
1.4
1.4
1.4
1.4
1.0
0.99
0.95
0.97
0.94
0.57
0.59
0.59
0.50
0.44
0.04
0.04
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.90
0.73
0.65
0.62
0.57
1.1
0.84
0.67
0.48
0.44
16
17
18
19
20
0.60
0.59
0.56
0.57
0.55
0.76
0.78
0.79
0.80
0.79
0.98
0.98
0.99
1.0
1.0
1.3
1.3
1.2
1.2
1.2
1.1
1.1
1.1
1.1
1.2
1.4
1.4
1.4
1.4
1.4
0.95
1.0
1.0
0.99
0.99
0.44
0.42
0.36
0.31
0.30
0.00
0.00
0.00
0.00
0.00
1.8
2.9
1.1
0.18
0.14
0.56
0.53
0.52
0.56
0.52
0.44
0.43
0.39
0.37
0.34
21
22
23
24
25
0.53
0.53
0.56
0.59
0.60
0.81
0.80
0.81
0.84
0.86
1.1
1.0
1.1
1.1
1.1
1.3
1.2
1.2
1.2
1.3
1.2
1.3
1.3
1.3
1.3
1.5
1.5
1.4
1.4
1.4
1.0
1.0
0.99
0.92
0.93
0.27
0.28
0.29
0.28
0.28
0.00
0.00
0.00
0.00
0.00
0.11
2.6
14
1.6
0.33
0.49
0.44
0.41
0.37
0.33
0.32
0.29
0.27
0.23
0.22
26
27
28
29
30
31
0.61
0.61
0.59
0.56
0.57
0.57
0.87
0.84
0.87
0.89
0.93
---
1.1
1.1
1.1
1.1
1.1
1.2
1.3
1.3
1.3
1.3
1.3
1.2
1.3
1.3
1.3
-------
1.4
1.4
1.4
1.4
1.4
1.4
0.87
0.90
0.91
0.88
0.83
---
0.28
0.28
0.26
0.24
0.20
0.17
0.00
0.00
0.00
0.00
0.00
---
22
73
6.6
1.2
0.88
0.74
0.30
0.27
0.24
0.30
6.3
0.74
0.21
0.18
0.22
0.21
0.24
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
30.82
0.994
13
0.12
0.56
61
22.53
0.751
0.93
0.61
0.75
45
32.32
1.043
1.2
0.95
1.0
64
39.1
1.261
1.3
1.2
1.3
78
31.15
1.113
1.3
0.96
1.1
62
42.6
1.374
1.5
1.1
1.4
84
30.81
1.027
1.3
0.83
1.0
61
15.06
0.486
0.88
0.17
0.44
30
1.03
0.034
0.14
0.00
0.00
2.0
129.18
4.167
73
0.00
0.11
256
108.33
3.495
50
0.24
0.62
215
58.97
1.966
31
0.18
0.36
117
0.249
0.39
2000
0.035
2002
1.763
4.16
2002
0.40
2000
3.473
6.35
2000
0.59
2001
0.545
0.70
2001
0.39
2000
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
9.405
17.8
2001
0.96
2002
4.437
8.09
2001
0.79
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
2.303
3.48
2001
1.13
2002
2.598
3.92
2001
1.28
2002
2.637
4.15
2001
1.12
2002
FOR 2001 CALENDAR YEAR
603.34
1.653
13
0.05
0.12
1200
4.2
0.81
0.23
2.579
3.78
2001
1.37
2002
1.216
1.57
2001
0.99
2000
0.781
1.42
2001
0.42
2000
FOR 2002 WATER YEAR
541.90
1.485
Oct 3
Jul 1
Jun 28
73
0.00
0.00
1070
1.4
0.86
0.05
Jul 27
Jun 14
Jun 14
WATER YEARS 2000 - 2002
3.894
3.89
2001
3.89
2001
291
Oct 23 2000
0.00 Jun 15 2002
0.00 Jun 15 2002
2820
4.2
0.95
0.17
171
GILA RIVER BASIN
09471550 SAN PEDRO RIVER NEAR TOMBSTONE, AZ
LOCATION.--Lat 31° 45'03", long 110° 12'02", in SE1/4 sec. 28, T.19 S., R.21 E. (unsurveyed), Cochise County, Hydrologic Unit 15050202, in Spanish land grant of San Juan de
las Boquillas y Nogales, on right bank 0.5 mi downstream from Willow Wash, 2.6 mi north of Fairbank, and 8 mi northwest of Tombstone.
DRAINAGE AREA.--1,740 mi2 approximately, of which 696 mi2 is in Mexico.
PERIOD OF RECORD.--Apr. 1967 to Sept. 1986, Oct. 1996 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,780 ft above sea level, from topographic map.
REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions above station, mostly by pumping from ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,200 ft3/s Oct. 9, 1977, gage height, 11.40 ft, from rating curve extended above 4,900 ft3/s on basis of
slope-area measurements at gage heights 8.89 ft and 11.40 ft; no flow at times during most summers.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,000 ft3/s and (or) maximum (*):
Date
July 27...........
Time
Discharge (ft3/s)
0130
*1,220
Gage height (ft)
*5.89
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
0.00
0.00
6.1
16
5.1
0.00
0.00
0.00
0.00
0.00
6.0
6.3
6.9
7.4
7.5
13
13
13
13
13
14
13
15
15
15
14
13
13
13
14
14
14
13
13
12
6
7
8
9
10
2.6
2.2
2.1
2.1
2.0
0.00
0.00
0.00
0.00
0.00
7.8
8.1
8.4
9.4
9.6
13
13
13
13
13
15
14
14
14
13
14
14
14
14
14
11
12
13
14
15
1.7
e1.2
e0.00
0.00
0.00
0.00
0.00
0.16
1.8
2.2
9.7
9.8
9.7
10
11
13
13
13
13
13
13
13
13
13
13
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
2.3
2.8
3.1
3.2
3.5
11
11
11
11
12
13
13
13
13
13
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
3.7
3.9
4.1
4.1
4.3
12
12
12
12
12
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
4.3
4.7
4.9
5.6
6.0
---
14
13
13
13
13
13
TOTAL
MEAN
MAX
MIN
AC-FT
41.10
1.326
16
0.00
82
64.66
2.155
6.0
0.00
128
322.6
10.41
14
6.0
640
APR
MAY
JUN
JUL
AUG
4.9
5.0
4.9
4.8
4.4
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5.6
79
129
107
66
12
12
12
12
11
4.0
3.8
3.5
3.3
2.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
354
95
41
29
88
0.00
0.00
31
42
71
14
14
14
14
14
11
10
10
9.9
9.7
2.5
2.2
2.2
2.0
1.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
39
59
24
16
11
4.5
e4.0
e0.51
e0.00
e0.00
13
13
13
13
13
14
14
14
14
14
9.4
9.2
9.0
8.4
7.9
1.2
0.93
0.59
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
8.6
8.0
6.6
e10
e32
e0.00
e0.00
e0.01
e0.01
e0.00
13
13
14
13
13
13
13
13
13
13
14
14
14
14
14
7.9
8.1
7.7
7.3
7.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
7.7
0.00
e11
e0.00
e0.00
e0.00
e0.00
e0.00
e0.00
e0.00
e0.00
e0.00
14
14
14
14
14
14
13
13
14
-------
14
14
14
14
14
14
6.6
6.2
6.1
5.9
5.4
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e0.00
e0.00
e0.00
e0.00
e41
11
e0.00
e0.00
e0.00
e0.00
e0.00
---
410
13.23
14
13
813
377
13.46
15
13
748
431
13.90
14
13
855
288.0
9.600
14
5.4
571
54.76
1.766
5.0
0.00
109
0.00
0.000
0.00
0.00
0.00
628.70
20.28
267
0.00
1250
1270.80
40.99
354
0.00
2520
153.10
5.103
71
0.00
304
4.624
45.2
2000
0.000
1974
98.38
369
1974
0.000
1997
154.8
820
1984
6.86
1997
51.24
177
1982
0.085
1973
28
267
86
192
36
12
SEP
0.09
0.00
0.00
0.00
0.00
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
100.8
998
1978
0.000
1974
19.79
185
2001
0.000
1999
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
51.77
375
1979
1.87
1999
46.04
450
1979
2.35
1999
37.23
214
1983
4.80
1999
FOR 2001 CALENDAR YEAR
9963.61
27.30
1290
0.00
0.00
19760
42
12
0.00
31.46
179
1983
6.17
1999
13.50
43.7
1985
4.16
1982
6.629
20.8
1985
0.35
1999
FOR 2002 WATER YEAR
4041.72
11.07
Aug 14
Jan 31
Jun 12
354
0.00
0.00
8020
14
6.0
0.00
Aug 6
Oct 1
Oct 13
WATER YEARS 1967 - 2002
53.01
157
10.1
17100
0.00
0.00
38400
74
11
0.00
1984
1997
Oct 9 1977
Jun 22 1967
Jun 22 1967
172
GILA RIVER BASIN
09472050 SAN PEDRO RIVER AT REDINGTON BRIDGE NEAR REDINGTON, AZ
LOCATION.--Lat 32° 26'46", long 110° 29'16", in SW1/4NE1/4SE1/4 sec. 34, T.11 S., R.18 E., Pima County, Hydrologic Unit 15050203, on left bank of bridge 1.5 mi downstream
from the Cochise/Pima County line, 0.5 mi east of Redington and 6.4 mi downstream from former gage, sta 09472000.
DRAINAGE AREA.--3,096 mi2, of which 696 mi2 is in Mexico.
PERIOD OF RECORD.--July 1998 to current year.
GAGE.--Water-stage recorder. Datum of gage is 2,820 ft above sea level.
REMARKS.--Records fair except for discharges below 10 ft3/s and estimated discharges, which are poor. Diversions above station for irrigation of about 10,800 acres in 1978,
excluding an unknown amount in Mexico.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,900 ft3/s, Oct. 24, 2000, gage height, 14.18 ft. No flow for many days each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,500 ft3/s and (or) maximum (*):
Date
Time
Aug. 4 ............
Discharge (ft3/s) Gage height (ft)
1630
*4,520
*13.90
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
4.6
1.8
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
350
e42
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.05
0.00
0.00
0.00
0.05
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
63
e91
e30
e0.27
e16
0.00
0.00
0.00
0.00
168
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.07
0.00
e0.06
0.00
0.00
0.00
0.00
53
0.10
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.54
0.02
0.00
0.03
0.00
0.00
e1.8
e6.0
e8.3
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.18
0.01
0.00
0.00
e0.62
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
58
7.9
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
6.50
0.210
4.6
0.00
0.00
13
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
276.15
8.908
93
0.00
0.00
548
0.00
674.95
21.77
350
0.00
0.00
1340
0.01
221.10
7.370
168
0.00
0.00
439
0.00
0.062
0.25
2000
0.000
1999
49.01
129
1999
0.64
2000
128.6
230
2000
50.9
1998
17.38
49.4
1999
0.000
2001
35
93
93
3.3
28
23
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
109.9
439
2001
0.000
1999
29.17
117
2001
0.000
1999
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.000
0.000
1999
0.000
1999
1.974
7.89
2001
0.000
1999
0.124
0.50
2001
0.000
1999
FOR 2001 CALENDAR YEAR
0.000
0.000
1999
0.000
1999
0.000
0.000
1999
0.000
1999
0.000
0.000
1999
0.000
1999
FOR 2002 WATER YEAR
2792.47
7.651
1178.70
3.229
576
Aug 15
0.00 Jan 1
0.00 Feb 10
5540
0.002
9.9
0.00
0.00
350
Aug 4
0.00 Oct 1
0.00 Oct 11
2340
0.001
0.00
0.00
0.00
WATER YEARS 1998 - 2002
34.83
54.5
2001
20.5
2000
2600
Oct 24 2000
0.00 Aug 19 1998
0.00 Sep 6 1998
25230
0.011
43
0.00
0.00
173
GILA RIVER BASIN
09473000 ARAVAIPA CREEK NEAR MAMMOTH, AZ
LOCATION.--Lat 32° 50'37", long 110° 37'09", in NW1/4NW1/4 sec. 9, T.7 S., R.17 E., Pinal County, Hydrologic Unit 15050203, on right bank 6 mi upstream from mouth and 9
mi north of Mammoth.
DRAINAGE AREA.--537 mi2.
PERIOD OF RECORD.--May 1931 to Dec. 1942 (published as "near Feldman"), May 1966 to current year. Monthly discharge only July 1941 to Sept. 1941, published in
WSP 1313.
REVISED RECORDS.--WDR AZ–68–1: 1967. WDR AZ–82–1: 1968, 1969, 1973, 1979 (M). WDR AZ–90–1: Drainage area.
GAGE.--Water-stage recorder and, since Mar. 1980, crest-stage gage. Elevation of gage is 2,345 ft above sea level, from topographic map. Oct. 1, 1981, to Oct. 1, 1983, gage
at site 300 ft upstream at datum 4.19 ft higher. Prior to Oct. 1, 1981, at datum 1.00 ft higher. May 1931 to Dec. 1942 at site 0.3 mi downstream at different datum.
REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions for irrigation of several hundred acres above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge since at least 1919, 70,800 ft3/s Oct. 1, 1983, from slope-area measurement of peak flow, gage height, 16.76 ft,
from profile past gage; minimum, 0.3 ft3/s Aug. 30, 1940.
EXTREMES OUTSIDE PERIOD OF RECORD.--A discharge of 20,000 ft3/s occurred Aug. 2, 1919, at site of former gaging station 6 mi downstream, operated Apr. 1919 to
Sept. 1921, gage height, 6.3 ft, from floodmark, site and datum then in use, from rating curve extended above 5,100 ft3/s on basis of velocity-area study.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,500 ft3/s and (or) maximum (*), from rating curve extended above 130 ft3/s on the basis
of slope-area measurement at gage height 16.76 ft:
Date
Time
Sept. 10 ........
Discharge (ft3/s) Gage height (ft)
2015
*8,270
*7.81
Minimum daily discharge, 2.0 ft3/s July 7, 8, and 9.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
MAY
JUN
JUL
1
2
3
4
5
8.9
9.2
9.5
9.4
9.5
11
11
11
11
12
14
14
14
15
15
16
e16
e16
16
16
16
16
16
16
16
15
15
16
16
16
13
14
13
13
12
APR
6.7
6.9
6.7
6.4
6.2
3.4
3.5
3.5
3.5
3.6
2.1
2.1
2.1
2.1
2.1
13
12
12
51
11
AUG
SEP
6.9
6.6
6.6
6.4
7.1
6
7
8
9
10
10
e13
17
13
12
12
12
e12
e13
e13
15
14
14
15
15
16
16
15
14
14
16
16
17
17
17
16
15
16
16
15
13
13
13
12
12
5.9
5.9
5.8
5.7
5.5
3.3
3.1
2.9
2.9
2.7
2.1
2.0
2.0
2.0
2.2
30
11
10
9.6
9.4
7.0
7.2
33
12
485
11
12
13
14
15
11
11
10
10
10
e13
e13
e13
e13
13
16
17
16
16
16
14
14
14
14
14
17
17
17
17
16
16
16
16
16
17
12
12
11
11
10
5.2
5.0
4.9
4.7
4.4
e2.7
e2.5
e2.4
e2.4
e2.4
2.2
2.4
2.4
2.4
14
8.7
8.4
8.1
7.8
7.2
29
12
12
10
8.9
16
17
18
19
20
10
9.6
9.6
9.7
9.7
13
13
13
13
13
16
16
16
16
16
14
14
14
14
14
16
16
17
17
16
17
16
16
16
16
11
10
10
10
9.6
4.4
4.4
4.1
4.1
4.2
e2.4
e2.3
2.2
2.2
2.2
15
14
15
13
13
7.0
6.9
6.8
7.3
8.3
8.6
8.5
8.4
8.4
8.3
21
22
23
24
25
9.8
10
10
10
10
13
13
13
13
13
17
16
16
16
16
14
14
14
15
16
16
16
15
15
15
16
16
15
15
15
9.4
9.0
8.7
8.6
8.5
4.3
4.6
4.6
4.6
4.7
2.2
2.2
2.2
2.2
2.1
13
13
25
21
17
7.9
7.6
7.2
6.9
6.8
8.1
7.8
7.7
7.6
7.6
26
27
28
29
30
31
10
9.6
10
10
10
10
13
13
14
14
14
---
16
16
16
16
16
16
16
16
16
16
17
17
16
16
16
-------
15
14
15
14
14
14
8.4
8.5
8.3
7.6
6.9
---
4.5
4.5
4.4
4.1
3.6
3.4
2.1
2.1
2.1
2.1
2.1
---
42
27
51
16
14
13
6.5
6.4
6.3
9.0
7.7
7.0
7.7
7.7
7.8
7.7
7.8
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
321.5
10.4
17
8.9
638
0.02
0.02
381
12.7
14
11
756
0.02
0.03
483
15.6
17
14
958
0.03
0.03
466
15.0
17
14
924
0.03
0.03
454
16.2
17
15
901
0.03
0.03
481
15.5
17
14
954
0.03
0.03
318.5
10.6
14
6.9
632
0.02
0.02
154.4
4.98
6.9
3.4
306
0.01
0.01
77.5
2.58
3.6
2.1
154
0.00
0.01
366.2
11.8
51
2.0
726
0.02
0.03
324.8
10.5
51
6.3
644
0.02
0.02
769.4
25.6
485
6.4
1530
0.05
0.05
12.0
40.1
1940
1.90
1939
24.1
115
1942
4.71
1997
31.5
133
1935
7.81
1975
24.1
55.8
1984
5.35
1973
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1932 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
45.9
1098
1984
6.19
1939
23.9
91.1
1979
8.70
1940
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
47.4
474
1979
9.69
1971
53.0
682
1993
10.1
1940
64.6
215
1983
11.1
1977
FOR 2001 CALENDAR YEAR
58.2
349
1991
9.49
1976
21.1
53.1
1993
7.17
1976
14.8
44.8
1979
4.33
1972
FOR 2002 WATER YEAR
4922.2
13.5
4597.3
12.6
39
Aug 11
4.0
Jun 10
4.3
Jun 9
9760
0.025
0.34
22
13
7.4
485
Sep 10
2.0
Jul 7
2.1
Jul 3
9120
0.023
0.32
16
12
2.9
WATER YEARS 1932 - 2002
34.2
140
1984
9.62
1976
16000
Oct 1 1983
0.40 Aug 29 1940
0.63 Aug 25 1940
24740
0.064
0.86
45
16
6.1
174
GILA RIVER BASIN
09474000 GILA RIVER AT KELVIN, AZ
LOCATION.--Lat 33° 06'10", long 110° 58'33", in NE1/4NW1/4 sec. 12, T.4 S., R.13 E., Pinal County, Hydrologic Unit 15050100, on left bank at Kelvin, 500 ft downstream from
Mineral Creek, 18 mi downstream from San Pedro River, and 19 mi upstream from Ashurst-Hayden Dam.
DRAINAGE AREA.--18,011 mi2, of which 5,125 mi2 is below Coolidge Dam.
PERIOD OF RECORD.--Jan. 1911 to current year.
REVISED RECORDS.--WSP 329: 1911. WSP 609: 1916(M). WSP 629: 1914–17. WSP 1119: 1913, 1915, 1917(M), 1921(M), 1922–23, 1927(M). WSP 1283: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,745.02 ft above sea level. Prior to June 15, 1914, and Dec. 1, 1914, to Aug. 31, 1915, nonrecording gages at several sites
within 2 mi of present site at different datums. Sept. 1, 1915, to Sept. 30, 1963, water-stage recorder at site 900 ft downstream at datum 1.80 ft lower. Jan. 16, 1985, to
June 1990, supplementary water-stage recorder at same site and datum.
REMARKS.-- Records fair, except estimated daily discharges, which are poor. Large diversions above station for irrigation, of which about 90 percent is above Coolidge Dam.
About 82,000 acres irrigated, a considerable portion by pumping from ground water. Flow regulated by San Carlos Reservoir 49 mi upstream since Nov. 15, 1928.
(See sta 09469000.) San Pedro River contributes major portion of unregulated inflow.
AVERAGE DISCHARGE (adjusted for storage in San Carlos Reservoir).--91 years, 520 ft3/s, 376,700 acre-ft/yr; median of yearly mean discharges, 324 ft3/s, 235,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--1911–28: Maximum discharge, about 132,000 ft3/s Jan. 20, 1916, gage height, 19.5 ft, site and datum then in use, from rating curve
extended above slope-area measurement at gage height, 16.2 ft for flood of Sept. 28, 1926; no flow Feb. 25, 1913.
1929–2000: Maximum discharge, 100,000 ft3/s Oct. 2, 1983, gage height, 33.0 ft from floodmark, from rating curve extended above 12,000 ft3/s on basis of peak discharge
computed by step-backwater method at Hayden Railroad Bridge, 17.8 mi upstream, and by flood-routing; minimum daily, 0.0 ft 3/s Aug. 4, 2000.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 4,000 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
1045
*1,660
Gage height (ft)
*6.57
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
1
2
3
4
5
e214
225
224
243
255
6
7
8
9
10
258
287
278
287
273
11
12
13
14
15
NOV
DEC
JAN
FEB
MAR
JUN
JUL
AUG
SEP
8.1
29
171
218
241
139
138
139
147
156
95
96
96
96
95
254
233
229
229
229
e82
e68
e55
47
43
8.2
8.2
7.7
7.3
7.1
1.8
2.3
1.2
0.81
0.65
0.00
0.02
0.00
0.01
0.03
0.09
0.00
0.00
0.00
174
e1.5
e1.0
e0.50
e0.12
0.14
12
11
10
9.7
9.4
242
248
253
260
261
156
157
157
170
181
96
102
104
106
104
265
293
333
364
364
39
36
33
31
30
6.6
6.2
5.7
5.2
4.8
0.52
e0.45
e0.38
e0.31
e0.24
0.06
0.00
0.00
0.09
0.11
37
71
48
137
164
0.21
0.20
0.27
9.9
46
270
237
221
220
215
9.1
8.8
8.5
8.1
8.0
272
276
209
166
142
156
130
122
120
119
104
104
103
101
100
360
363
353
352
359
28
26
25
24
23
4.3
4.0
3.5
3.0
2.6
e0.17
0.14
0.10
0.09
0.10
0.09
0.05
0.01
0.03
0.09
124
127
102
74
69
524
90
22
20
54
16
17
18
19
20
213
214
211
214
217
7.9
7.8
7.7
7.6
7.4
138
185
222
225
229
118
116
109
e103
e96
99
94
98
109
110
368
314
269
e269
e258
23
22
22
21
20
2.2
1.9
1.5
1.1
0.87
0.05
0.04
0.04
0.04
0.02
0.08
0.08
0.08
0.07
0.02
69
82
69
28
15
94
121
78
73
73
21
22
23
24
25
212
214
216
211
206
7.3
7.3
7.2
7.1
7.5
229
182
148
244
355
e89
e82
e75
71
70
110
109
172
256
262
249
248
252
182
118
20
19
18
17
15
0.76
0.69
2.2
12
16
0.06
0.05
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
8.2
6.8
6.3
5.5
5.1
69
42
28
20
17
26
27
28
29
30
31
204
e142
e68
e51
e39
e31
7.6
7.5
7.8
7.9
8.0
---
391
399
437
408
246
152
70
74
92
94
95
96
269
276
263
-------
109
104
100
100
101
102
13
12
10
9.1
8.7
---
19
20
13
7.4
4.2
2.2
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
2.1
33
10
2.4
5.8
4.8
4.5
4.4
3.8
e2.0
21
26
30
61
72
TOTAL
MEAN
MAX
MIN
AC-FT
6370
205.5
287
31
12630
301.2
10.04
26
7.1
597
3637
117.3
181
70
7210
3729
133.2
276
94
7400
7723
249.1
368
100
15320
839.8
27.99
82
8.7
1670
9.57
0.319
2.3
0.00
19
48.41
1.562
33
0.00
96
CAL YR 2001
WTR YR 2002
e26
e22
e18
e15
e12
e
7186.1
231.8
437
8.1
14250
Estimated
TOTAL 131056.3
TOTAL 33075.63
MEAN 359.1
MEAN 90.62
MAX 880
MAX 524
MIN 7.1
MIN 0.00
APR
MAY
189.42
6.110
20
0.69
376
AC-FT 260000
AC-FT 65610
1447.29
46.69
174
0.00
2870
--1594.84
53.16
524
0.12
3160
175
GILA RIVER BASIN
09474000 GILA RIVER AT KELVIN, AZ—CONTINUED
WATER-QUALITY RECORDS
LOCATION.--Water samples collected between Florence-Kelvin road bridge and Mineral Creek, and 700 ft. to 500 ft. upstream from gaging station.
PERIOD OF RECORD.--Dec. 1950 to Sept. 1994, Feb. 1996 to Feb. 1998, Sept. 2001 to current year.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Oct. 1964 to Sept. 1976, Oct. 1996 to Feb. 1998.
WATER TEMPERATURE: Dec. 1950 to Sept. 1976, Oct. 1996 to Feb. 1998.
SUSPENDED-SEDIMENT DISCHARGE: Jan. 1958 to Sept. 1976.
REMARKS.--No inflow from Mineral Creek between sampling point and gaging station except during infrequent periods of heavy local rains. Unpublished daily specific
conductance mesurements for period Decmeber 1950 to September 1964 available from District Office in Tucson, AZ.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
Date
Time
SEP
12...
1215
261
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
Date
SEP
12...
Date
SEP
12...
Date
SEP
12...
Date
SEP
12...
Date
56.0
20.0
TURBIDITY
(NTU)
(00076)
28
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
21.0
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
710
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
8.2
110
8.4
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
SODIUM
ADSORPTION
RATIO
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
1300
TEMPERATURE
AIR
(DEG C)
(00020)
38.5
TEMPERATURE
WATER
(DEG C)
(00010)
26.2
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
210
53.0
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
37
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
5.80
5
170
178
200
8
220
1.1
120
48
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
735
697
.40
.02
.03
<.020
.38
.05
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
5
6
67.0
189
198
<.5
<.5
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
2
9
3
122
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
8
7
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
1.00
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
<1
<2
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
1100
84.0
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
<2
STRONTIUM,
THALTOTAL
LIUM,
RECOVDISERABLE SOLVED
(UG/L
(UG/L
AS SR) AS TL)
(01082) (01057)
SEP
12...
<1
<1
<1
550
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
k -- Counts outside acceptable range
<2
<1
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
<2
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
<2
<1
<.10
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
52
15
<.1
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
36.6
E26k
<1
E70k
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
<1
<1
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
<1
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
3
<1
176
GILA RIVER BASIN
09474000 GILA RIVER AT KELVIN, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
05...
MAR
19...
MAY
21...
AUG
21...
Date
DEC
05...
MAR
19...
MAY
21...
AUG
21...
Date
DEC
05...
MAR
19...
MAY
21...
AUG
21...
Date
DEC
05...
MAR
19...
MAY
21...
AUG
21...
Time
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
1305
240
61
720
10.7
99
8.4
1300
20.0
9.3
1330
419
23
715
10.3
106
8.5
1620
22.0
713
9.4
119
8.2
2310
24.0
715
8.2
115
8.4
2110
33.5
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
1215
1210
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
.70
8.0
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
1.3
72
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SODIUM
ADSORPTION
RATIO
18
210
13.8
53
270
23.3
310
530
28.7
86
330
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
50.0
67.0
132
82.0
57.0
20.0
22.0
6.10
5
180
188
222
4
230
1.1
120
113
68.0
24.0
26.0
6.10
6
220
213
235
12
280
1.2
170
36
49.0
49.0
8.40
5
290
225
264
5
360
1.3
420
4
30.0
32.0
9.10
7
300
243
279
8
390
1.3
220
70
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
<5
E130k
370
<1
<1
126
92.0
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
1.04
765
721
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
E.70cl
.06
1.31
960
896
.50
<.01
2.04
1500
1400
<.20
.01
1.70
1250
1180
.90
<.01
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
E.03cl
--
<.020
.05
6
<2k
E3k
<1
<1
.01
<.020
<.02
11
E8k
E18k
<1
<1
--
<.020
.25
19
E180k
--
<1
<1
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
<1
2
<2
<.5
<1
<1
<2
<.5
<1
<1
<2
<.5
<1
1
3
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
<1
194
201
<.5
<.5
<1
<1
244
250
<.5
<1
<1
297
298
<.5
<1
<1
327
334
<.5
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
4
5
48.0
90.0
<1
4
4
63.0
80.0
2
2
88.0
89.0
8
10
170
.100
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
140
.08
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
177
GILA RIVER BASIN
09474000 GILA RIVER AT KELVIN, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
05...
MAR
19...
MAY
21...
AUG
21...
Date
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
18
<2
2690
<2
3
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
2
509
<.10
<.1
1
5
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
<1
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
<1
8
<2
1030
<2
<2
6
162
<.10
<.1
1
2
2
1
<2
<2
35
<2
<2
639
634
<.10
<.1
1
1
<1
<1
11
<2
1790
<2
4
285
417
<.10
<.1
2
3
1
2
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
DEC
05...
<1
<1
570
MAR
19...
<1
<1
720
MAY
21...
<1
<1
1200
AUG
21...
<1
<1
970
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
c -- See laboratory comment
k -- Counts outside acceptable range
l -- Sample lab preparation problem
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
<2
<2
3
12
141
91.4
<2
<2
15
5
41
46.4
<2
<2
4
<2
16
<2
<2
18
11
173
.03
3.7
178
GILA RIVER BASIN
09474000 GILA RIVER AT KELVIN, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Water-quality measurements in the following table were made as part of the ADEQ Fixed-Station Network Program. The following analyses are quality-assurance samples
processed during the 2002 sampling period and are defined in the introductory text section titled “Water-Quality Control Data”.
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
Date
Time
Sample
type
MAR
19...
1335
2
5.6
2
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
Date
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
MAR
19...
<.5
<1
<.5
Remark codes used in this report:
< -- Less than
<1
TEMPERATURE
WATER
(DEG C)
(00010)
17.6
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
<2
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
.03
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
<2
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
<.03
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
<2
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
<.1
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<1
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
<.20
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<1
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
<.01
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
3
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
<.020
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
<.02
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<3
179
GILA RIVER BASIN
DIVERSION FROM GILA RIVER
09475500 FLORENCE-CASA GRANDE CANAL, NEAR FLORENCE, AZ
LOCATION.--Lat 33° 05'15", long 111° 17'10", in NE1/4NE1/4 sec. 14, T.4 S., R.10 E., Pinal County, Hydrologic Unit 15050100, on left bank at China Wash, 2.6 mi downstream
from head at Ashurst-Hayden Dam and 7.5 mi northeast of Florence.
PERIOD OF RECORD.--Jan. 1928 to current year (monthly diversions only). Published as a supplement to records for Gila River at Ashurst-Hayden Dam, 1928–80.
GAGE.--Water-stage recorder and Parshall flume. Prior to Jan. 12, 1937, water-stage recorder 900 ft downstream from Ashurst-Hayden Dam.
REMARKS.--Records show monthly diversion from the Gila River at Ashurst-Hayden Dam for irrigation of land under the 100,000 acre San Carlos Project. Diversion records
are those at the canal gaging station at the flume 2.6 mi downstream from dam; values are adjusted for sluicing through the dam or from the canal and pumping of water
into the canal between the dam and the flume, but are not adjusted for natural losses. Adjusted values show water available at Ashurst-Hayden Dam, except for spill over
the dam or water sluiced through the dam during times of flood runoff.
COOPERATION.--Pumping records furnished by Bureau of Indian Affairs.
MONTHLY DIVERSIONS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Discharge, in cubic feet per second
Month
October
Maximum
Minimum
Mean
Diversions in
acre-feet
Water sluiced
above flume, in
acre-feet
282
0
194.6
November
0
0
0
December
358
0
215.8
13,270
0
CAL YR 2001
932
0
342.3
124,900
0
January
151
66
109.9
6,760
0
February
250
95
129.2
7,170
0
March
326
109
239.1
14,700
0
April
100
1,780
0
3.0
29.92
11,970
344
0
772
May
4.4
0
0.466
29
0
June
0
0
0
0
0
July
0
0
0
0
0
August
139
0
35.25
2,170
0
September
252
0
32.24
1,920
356
WTR YR 2002
358
0
82.6
30,132
1,472
180
GILA RIVER BASIN
09478500 QUEEN CREEK BELOW WHITLOW DAM NEAR SUPERIOR, AZ
LOCATION.--Lat 33° 17'57", long 111° 16'37", in NW1/4SE1/4 sec. 36, T.1 S., R.10 E., PInal County, Hydrologic Unit 15050100, 1 mi upstream from Queen Valley and 10 mi west
of Superior. Gage is located on the outlet box structure below Whitlow Ranch Dam.
DRAINAGE AREA.--144 mi2.
PERIOD OF RECORD.--Jan. 1896 to Dec. 1897, Jan. 1898 to Aug. 1899 (fragmentary), Feb. to Sept. 1915 (gage-heights only), Oct. 1915 to Sept. 1920, May 1948 to Jan. 1959.
Apr. 2001 to current year. Published as “at Whitlow’s Ranch” 1896–99, “near Superior” 1915–20 and as “at Whitlow Dam Site nr Superior” 1948–59.
GAGE.--Water-stage recorder. Elevation of gage is 2040 ft above sea level, from topographic map. From Jan. 25, 1896, to Aug. 11, 1899, and Feb. 14, 1915 to Sept. 30, 1920,
staff gages were operated in the vicinity of the present gage at different datums. Stilling-well gages were operated from May 1, 1948, to Aug. 19, 1954, and Jan. 6, 1955,
to Jan. 1959 at sites about 1,100 ft and 800 ft upstream and datums of 2048.96 and 2045.70 ft above mean sea level, respectively.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--1915–20, 1948–59: Maximum discharge, 42,900 ft3/s Aug. 19, 1954. No flow at times in each year. 2001–present: Maximum
discharge, 620 ft3/s Aug. 14, 2001, estimated. Minimum daily discharge, 0.63 ft3/s June 26–27, Sept. 2–5, 2002.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 3.4 ft3/s Oct. 7 at 2200. Minimum daily discharge, 0.63 ft3/s June 26–27, Sept. 2–5.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUL
AUG
SEP
1
2
3
4
5
3.2
3.2
3.2
3.2
3.2
2.9
2.9
2.9
2.9
3.0
2.7
2.7
2.6
2.5
2.5
2.0
1.9
1.9
1.9
1.9
2.3
2.3
2.3
2.3
2.2
e2.0
1.9
1.9
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.6
1.4
1.4
1.4
1.3
1.1
1.1
1.1
1.1
1.1
0.87
0.87
0.92
0.99
e1.0
e0.98
e0.98
e0.98
e0.95
0.64
0.63
0.63
0.63
0.63
6
7
8
9
10
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.0
2.8
2.8
2.5
2.5
2.5
2.4
2.4
1.9
1.9
1.9
1.9
1.9
2.1
2.1
2.0
1.8
2.1
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.4
1.5
1.6
1.7
1.7
1.1
1.1
1.1
1.1
1.1
1.0
0.88
0.89
1.00
1.1
e0.95
e0.92
e0.92
e0.92
e0.90
0.64
0.82
0.96
0.86
0.86
11
12
13
14
15
3.1
3.1
3.1
3.1
2.9
3.0
2.9
2.9
2.9
2.9
2.4
2.3
2.3
2.3
2.3
1.9
1.9
1.9
1.9
1.9
2.1
2.0
2.1
2.1
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
2.0
1.9
1.8
1.6
1.4
1.2
1.1
1.2
1.1
1.1
0.99
0.88
0.89
1.1
1.1
1.1
0.92
0.86
e0.90
e0.90
e0.90
0.87
0.87
0.87
0.87
0.87
0.87
0.87
16
17
18
19
20
2.9
2.9
3.0
3.1
3.1
2.9
2.9
2.8
2.7
2.7
2.3
2.3
2.3
2.4
2.3
1.9
1.9
1.9
1.9
2.0
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
2.0
1.9
1.9
1.4
1.4
1.4
1.4
1.2
1.3
1.4
1.3
1.1
0.86
0.87
0.88
0.85
0.86
0.90
0.87
0.89
0.86
0.87
0.87
0.89
0.94
0.87
0.89
0.87
0.87
0.87
0.87
0.87
21
22
23
24
25
3.0
3.0
3.1
3.1
3.0
2.8
2.9
2.9
2.8
2.8
2.3
2.5
2.5
2.4
2.5
2.2
2.5
2.4
2.5
2.3
1.9
1.9
1.9
1.9
1.9
2.0
1.9
2.0
1.9
1.9
1.4
1.4
1.4
1.4
1.6
1.2
1.1
1.2
1.3
1.4
0.70
0.67
0.66
0.66
0.67
0.87
0.87
e0.87
e0.87
0.86
0.89
0.90
0.93
0.89
0.87
0.87
0.91
0.87
0.87
0.87
26
27
28
29
30
31
3.0
3.1
3.1
3.1
3.0
2.9
2.8
2.8
2.9
2.9
2.8
---
2.3
2.2
2.1
2.1
2.1
2.0
2.3
2.3
2.3
2.3
2.4
2.4
1.9
1.9
e2.0
-------
1.9
1.9
1.9
1.9
1.9
1.9
1.6
1.6
1.6
1.9
1.8
---
1.4
1.3
1.2
1.2
1.2
1.3
0.63
0.63
0.64
0.79
1.2
---
0.87
0.87
0.86
0.90
0.88
1.0
0.87
0.87
0.94
1.1
1.0
0.75
0.85
0.86
0.81
0.82
0.85
---
95.2
3.071
3.2
2.9
3.1
189
0.02
86.4
2.880
3.1
2.7
2.9
171
0.02
73.5
2.371
2.7
2.0
2.4
146
0.02
64.1
2.068
2.5
1.9
1.9
127
0.01
56.5
2.018
2.3
1.8
2.0
112
0.01
59.2
1.910
2.0
1.8
1.9
117
0.01
51.2
1.707
2.0
1.4
1.8
102
0.01
42.1
1.358
1.8
1.1
1.3
84
0.01
27.73
0.924
1.3
0.63
0.89
55
0.01
28.81
0.929
1.1
0.86
0.88
57
0.01
28.41
0.916
1.1
0.75
0.90
56
0.01
24.58
0.819
0.96
0.63
0.87
49
0.01
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
e
Estimated
JUN
181
GILA RIVER BASIN
09479350 GILA RIVER NEAR MARICOPA, AZ
LOCATION.--Lat 33° 10'07", long 112° 00'24", in NW1/4NE1/4SW1/4, sec. 13, T.3 S., R.3 E., Pinal County, Hydrologic Unit 15050100, in Gila River Indian Reservation, on the
downstream side of the highway bridge 8 mi north of Maricopa, AZ.
DRAINAGE AREA.--19,915 mi2.
PERIOD OF RECORD.--Occasional medium range to high range flow measurements were made in 1993–1994 water year. Established as a continuous-record station May
1995 to current year.
GAGE.--Water-stage recorder. Elevation of gage 1,113.87 ft above sea level, from topographic map.
REMARKS.--Records good, except for estimated daily discharges, which are poor. Many diversions above station for irrigation. Most low flow is wastewater from irrigated
lands from Chandler, AZ, treatment plant. Flow regulated by storage in San Carlos Reservoir. This station replaces Gila River near Laveen (09479501), which was
discontinued in the 1995 water year. Flood Jan. 20, 1993, discharge 49,350 ft3/s, measured from bridge, no gage height recorded. Flood Jan. 22, 1993, discharge
46,300 ft3/s, measured from bridge, approximate gage height, 6.80 ft.
EXTREMES FOR CURRENT YEAR.--No flow for entire year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.000
1995
0.000
1995
0.000
0.000
1995
0.000
1995
0.011
0.065
1997
0.000
1996
0.195
1.56
1996
0.000
1995
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.057
0.40
2001
0.000
1996
0.000
0.000
1996
0.000
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
0.000
0.000
1996
0.000
1996
0.000
0.000
1996
0.000
1996
0.000
0.000
1996
0.000
1996
0.000
0.000
1996
0.000
1996
FOR 2001 CALENDAR YEAR
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.000
1996
0.000
1996
0.000
0.000
1996
0.000
1996
FOR 2002 WATER YEAR
0.00
0.000
Jan
Jan
Jan
1
1
1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Oct
Oct
Oct
1
1
1
WATER YEARS 1995 - 2002
0.024
0.13
1996
0.000
1998
38
Sep 2 1996
0.00 May 19 1995
0.00 May 19 1995
17
0.00
0.00
0.00
182
GILA RIVER BASIN
09480000 SANTA CRUZ RIVER NEAR LOCHIEL, AZ
LOCATION.--Lat 31° 21'19", long 110° 35'20", in SW1/4 sec. 11, T.24 S., R.17 E. (unsurveyed), Santa Cruz County, Hydrologic Unit 15050301, on southern border of Spanish land
grant of San Rafael, near left bank on downstream side of pier of bridge on county road, 1.7 mi upstream from international boundary, and 2.5 mi northeast of Lochiel.
DRAINAGE AREA.--82.2 mi2.
PERIOD OF RECORD.--Jan. 1949 to current year.
REVISED RECORDS.--WSP 1733: 1951. WDR AZ–94–1: 1993.
GAGE.--Water-stage recorder. Elevation of gage is 4,620 ft above sea level, from topographic map.
REMARKS.--Records poor. Small diversions for irrigation of 200 acres above station, mostly by pumping from ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,000 ft3/s Oct. 9, 1977 and Aug. 15, 1984, gage height, 10.21 ft and 10.2 ft, respectively, from rating curve
extended above 1,600 ft3/s on basis of slope-area measurement at gage height 10.21 ft; no flow at times in most years.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
Mar. 4 ...........
Time
Discharge (ft3/s)
0330
*1.5
Gage height (ft)
*2.75
Minimum daily discharge, 0.00 ft3/s June 24 and 26.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.47
0.43
0.38
0.47
0.45
0.19
0.18
0.20
0.23
0.22
e0.40
e0.40
e0.40
0.44
0.43
0.60
0.60
0.62
0.61
0.51
0.53
0.61
0.63
0.57
0.58
0.86
1.0
1.2
1.1
0.79
0.52
0.46
0.46
0.42
0.35
0.23
0.20
0.19
0.33
0.40
0.19
0.19
0.18
0.17
0.16
0.05
0.05
0.05
0.04
e0.05
0.13
0.14
0.14
e0.17
e0.16
0.18
0.18
0.17
0.17
0.15
6
7
8
9
10
0.43
0.36
0.31
0.34
0.28
0.25
0.26
0.26
0.25
0.22
0.44
0.46
0.46
0.47
0.50
0.54
0.59
0.60
0.64
0.67
0.53
0.47
0.54
0.56
0.56
0.64
0.62
0.69
0.60
0.67
0.41
0.34
0.32
0.34
0.34
0.69
e0.59
e0.36
e0.35
0.35
0.15
0.14
0.13
0.13
0.12
e0.06
0.05
0.05
0.05
0.04
e0.16
0.17
0.15
0.16
0.16
0.13
0.13
0.14
0.17
0.20
11
12
13
14
15
0.24
0.27
0.36
0.29
0.25
0.20
0.22
0.28
0.28
0.28
0.59
e0.60
e0.51
0.52
0.62
0.62
0.60
0.62
0.61
0.64
0.50
0.57
0.61
0.50
0.50
0.64
0.60
0.59
0.53
0.49
0.24
0.34
0.32
0.35
0.32
0.34
0.34
0.33
0.32
0.31
0.12
0.11
0.10
0.10
0.10
0.05
0.06
0.06
0.06
0.07
0.16
0.16
0.16
0.15
0.15
0.20
0.18
0.18
0.18
0.17
16
17
18
19
20
0.26
0.19
0.28
0.25
0.28
0.28
0.30
0.33
0.32
0.32
0.59
0.56
0.58
0.57
0.59
0.53
0.54
0.47
0.45
0.42
0.54
0.53
0.54
0.65
0.87
0.46
0.39
0.44
0.50
0.46
0.38
0.28
0.28
0.18
0.27
0.30
0.27
0.26
0.25
0.25
0.08
0.07
0.06
0.04
0.04
0.07
0.08
0.08
0.08
0.09
0.16
0.16
0.19
0.19
0.18
0.18
0.18
0.18
0.18
0.17
21
22
23
24
25
0.26
0.31
0.32
0.26
0.20
0.33
0.33
0.35
0.35
0.38
0.60
0.60
0.60
0.60
0.63
0.43
0.49
0.50
0.46
0.50
0.79
0.76
0.78
0.96
0.93
0.44
0.32
0.52
0.63
0.60
0.13
0.32
0.25
0.27
0.43
0.24
0.23
0.22
0.21
0.20
0.04
0.02
0.02
0.01
0.02
0.09
0.09
0.09
0.09
0.12
0.17
0.16
0.14
0.13
0.13
0.17
0.16
0.16
0.15
0.13
26
27
28
29
30
31
0.20
0.20
0.28
0.24
0.21
0.15
0.40
0.33
0.34
0.37
0.40
---
0.68
0.69
0.66
0.60
0.59
0.59
0.47
0.45
0.52
0.54
0.56
0.52
1.00
0.90
0.92
-------
0.35
0.34
0.54
0.61
0.69
0.54
0.39
0.54
0.55
0.40
0.21
---
0.19
0.18
0.19
0.19
0.20
0.19
0.01
0.02
0.03
0.04
0.05
---
0.11
0.12
0.12
0.12
0.13
e0.13
0.14
0.14
0.16
0.17
0.16
0.17
0.11
0.10
0.10
0.11
0.12
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
9.22
0.30
0.47
0.15
0.28
18
0.00
8.65
0.29
0.40
0.18
0.28
17
0.00
16.97
0.55
0.69
0.40
0.59
34
0.01
16.92
0.55
0.67
0.42
0.54
34
0.01
18.43
0.66
1.0
0.47
0.57
37
0.01
18.85
0.61
1.2
0.32
0.60
37
0.01
10.41
0.35
0.55
0.13
0.34
21
0.00
8.90
0.29
0.69
0.18
0.25
18
0.00
2.62
0.087
0.19
0.00
0.09
5.2
0.00
2.40
0.077
0.13
0.04
0.07
4.8
0.00
4.87
0.16
0.19
0.13
0.16
9.7
0.00
4.73
0.16
0.20
0.10
0.17
9.4
0.00
0.33
2.83
1973
0.000
1949
7.80
69.4
1950
0.026
1962
14.8
187
1984
0.000
1962
4.71
44.3
1964
0.000
1953
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1949 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
4.74
77.0
1978
0.000
1954
1.29
16.2
2001
0.000
1954
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
1.86
17.8
1979
0.000
1954
4.15
94.7
1993
0.023
1963
1.79
18.0
1985
0.032
1963
FOR 2001 CALENDAR YEAR
551.01
1.51
8.1
Jan 2
0.04 Sep 12
0.16 Sep 6
1090
0.018
4.1
0.92
0.26
1.81
34.2
1983
0.013
1963
0.89
8.68
1993
0.000
1963
0.44
2.77
1983
0.000
1954
FOR 2002 WATER YEAR
122.97
0.34
1.2
Mar 3
0.00 Jun 24
0.02 Jun 22
244
0.004
0.61
0.28
0.09
WATER YEARS 1949 - 2002
3.77
29.0
1984
0.31
1962
1770
Jan 18 1993
0.00 May 19 1949
0.00 May 19 1949
2730
0.046
4.2
0.50
0.00
183
GILA RIVER BASIN
09480500 SANTA CRUZ RIVER NEAR NOGALES, AZ
LOCATION.--Lat 31° 20'40", long 110° 51'03", in NW1/4 sec. 18, T.24 S., R.15 E. (unsurveyed), Santa Cruz County, Hydrologic Unit 15050301, in Spanish land grant of Maria
Santisima del Carmen, on left bank 0.8 mi downstream from international boundary and 5.5 mi east of Nogales.
DRAINAGE AREA.--533 mi2, of which 348 mi2 is in Mexico.
PERIOD OF RECORD.--Mar. to Nov. 1907 and Apr. 1909 to Dec. 1912 (discharge measurements and fragmentary gage-height record), Jan. 1913 to June 1922 (Oct. 1915 to
Sept. 1916 monthly discharge only), May 1930 to Dec. 1933, July 1935 to current year. Water-year estimates for 1913, 1915–16, 1920–22, 1930, 1934–35, published in
WSP 1733.
REVISED RECORDS.--WSP 959: 1935(M). WSP 1213: 1915–16, 1930–32(M), 1934(M), 1936–37(M). WSP 1283: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,702.54 ft above sea level (levels by International Boundary and Water Commission). Prior to June 30, 1922, nonrecording
gage or water-stage recorder at various sites 5 to 6 mi downstream at different datums.
REMARKS.--Records fair, except for estimated daily discharges, which are poor. Diversions above station of about 4,300 acre-ft/yr for irrigation of about 2,150 acres in Mexico
in 1977. Diversion 19 mi upstream for municipal supply of city of Nogales, Sonora, began in 1949; diversion in 1968 totaled 3,500 acre-ft/yr.
EXTREMES FOR PERIOD 1930–2000.--Maximum discharge, 31,000 ft3/s Oct. 9, 1977, gage height, 15.5 ft, from rating curve extended above 1,660 ft3/s on basis of slope-area
measurement of peak flow; no flow at times in most years.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,000 ft3/s and (or) maximum (*):
Date
Sept. 10 .........
Time
Discharge (ft3/s)
2000
*834
Gage height (ft)
*4.08
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.27
0.29
0.35
0.52
0.81
0.73
0.71
0.68
0.67
0.69
0.86
0.83
0.88
0.98
0.88
0.93
e0.82
0.75
0.79
0.78
0.37
0.39
0.44
0.50
0.37
0.11
0.13
0.13
0.09
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6.9
27
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
27
1.4
0.95
0.82
0.74
0.68
0.68
0.70
0.73
0.72
0.88
0.80
0.71
0.72
0.74
0.78
0.75
0.71
0.70
0.72
0.43
0.56
0.52
0.55
0.46
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
60
1.5
1.1
0.41
0.01
0.00
0.00
0.00
0.00
51
11
12
13
14
15
0.73
0.73
0.70
0.71
0.72
0.72
0.74
0.73
0.74
0.73
0.84
0.75
0.75
0.78
0.86
0.68
0.68
0.69
0.69
0.70
0.46
0.44
0.40
0.38
0.42
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
4.3
0.91
0.61
0.57
0.41
16
17
18
19
20
0.63
0.59
0.61
0.73
0.76
0.71
0.72
0.77
0.82
0.87
0.86
0.84
0.84
0.82
0.86
0.72
0.74
0.77
0.81
0.91
0.22
0.13
0.19
0.38
0.36
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6.9
0.12
83
15
2.3
0.34
0.24
0.07
0.01
0.00
21
22
23
24
25
0.75
0.73
0.72
0.77
0.82
0.81
0.87
0.87
0.83
0.86
0.89
0.91
0.88
0.93
0.95
0.96
0.90
1.1
1.0
0.74
0.33
0.26
0.28
0.28
0.25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.7
1.6
1.3
1.6
0.86
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.74
0.67
0.73
0.76
0.73
0.73
0.92
1.00
0.96
0.92
0.92
---
0.97
0.94
0.93
0.91
0.92
0.93
0.42
0.41
0.39
0.38
0.39
0.38
0.26
0.29
0.13
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
13
1.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
48.21
1.555
27
0.27
96
0.00
0.00
23.50
0.783
1.0
0.67
47
0.00
0.00
26.64
0.859
0.98
0.71
53
0.00
0.00
22.19
0.716
1.1
0.38
44
0.00
0.00
10.05
0.359
0.56
0.13
20
0.00
0.00
0.59
0.019
0.13
0.00
1.2
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
14.20
0.458
13
0.00
28
0.00
0.00
211.29
6.816
83
0.00
419
0.01
0.01
58.46
1.949
51
0.00
116
0.00
0.00
1.306
24.4
1984
0.000
1914
39.89
254
1950
0.000
1918
84.39
745
1955
0.15
1991
25.34
158
1983
0.000
1918
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
27.13
904
1978
0.000
1914
10.35
164
2001
0.000
1919
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
33.82
542
1979
0.000
1919
40.05
492
1979
0.000
1974
32.66
370
1985
0.000
1974
FOR 2001 CALENDAR YEAR
23.56
318
1983
0.000
1914
7.952
58.1
1992
0.000
1914
1.802
16.8
1983
0.000
1914
FOR 2002 WATER YEAR
3180.72
8.714
415.13
1.137
221
Apr 6
0.00 Sep 28
0.17 Sep 26
6310
0.016
0.22
24
1.1
0.46
83
Aug 18
0.00 Mar 7
0.00 Mar 7
823
0.002
0.03
0.92
0.07
0.00
WATER YEARS 1914 - 2002
27.07
123
1.84
13200
Oct
0.00 Oct
0.00 Oct
19610
0.051
0.69
42
2.5
0.00
1979
1997
9 1977
1 1913
1 1913
184
GILA RIVER BASIN
09482000 SANTA CRUZ RIVER AT CONTINENTAL, AZ
LOCATION.--Lat 31° 52'17", long 110° 58'46", in SE1/4SE1/4 sec. 11, T.18 S., R.13 E. (unsurveyed), Pima County, Hydrologic Unit 15050301, in Spanish land grant of San Ignacio
de la Canoa, on right bank 0.8 mi northeast of Green Valley Post Office, and 1.5 mi north of Continental. Prior to Feb. 13, 1981, at site 1.5 mi upstream.
DRAINAGE AREA.--1,682 mi2, of which 395 mi2 is in Mexico.
PERIOD OF RECORD.--May 1940 to Dec. 1946, Oct. 1951 to Sept. 1984, Oct. 1991 to current year (monthly discharge only for 1985–86), (crest-stage partial record station for
1987–1990). Low-flow records not equivalent prior to Feb. 13, 1981, owing to undetermined amount of underflow between sites.
REVISED RECORDS.--WSP 1283: Drainage area. WDR AZ–81–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 2,806.61 ft above sea level. Prior to Feb. 13, 1981, at site 1.5 mi upstream. July 21, 1940 to Sept. 8, 1965 at datum 17.28 ft
higher; Sept. 8, 1965 to present at datum 13.21 ft higher. Old site used as supplementary gage until Oct. 29, 1985.
REMARKS.--Records fair, except for estimated daily discharges which are poor. Irrigation above station of about 12,500 acres including about 2,300 acres in Mexico, mostly
by pumping ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 45,000 ft3/s Oct. 2, 1983, gage height, 16.34 ft from rating curve extended above 530 ft3/s on basis of slope-area
measurement at gage height 7.75 ft and slope-area measurement of peak flow, maximum gage height 16.70 ft Oct. 9, 1977, site and datum then in use; no flow for most
of each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,000 ft3/s and (or) maximum (*):
Date
Sept. 6 ..........
Time
Discharge (ft3/s)
1630
*600
Gage height (ft)
*5.06
Minimum daily discharge, no flow for most of year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.15
e0.08
0.00
0.00
26
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.7
1.6
e0.06
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e33
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
0.65
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.07
e0.05
0.00
13
e0.28
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e0.03
0.00
0.00
0.00
0.00
0.00
0.00
e0.07
e0.21
e8.4
e10
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
13.25
0.427
13
0.00
26
66.20
2.135
26
0.00
131
114.40
3.813
51
0.00
227
0.411
6.18
1978
0.000
1941
29.28
227
1954
0.000
1993
78.70
753
1955
0.000
1956
18.53
285
1964
0.000
1953
e51
12
e2.5
e4.9
e11
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
52.81
1525
1984
0.000
1943
5.523
133
1979
0.000
1941
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
35.14
658
1968
0.000
1942
45.78
1386
1993
0.000
1942
12.19
207
1966
0.000
1942
10.36
181
1983
0.000
1941
FOR 2001 CALENDAR YEAR
75.01
0.206
21
0.00
0.00
149
0.00
0.00
0.00
0.727
31.5
1992
0.000
1941
0.028
1.32
1992
0.000
1941
FOR 2002 WATER YEAR
193.85
0.531
Jul
Jan
Jan
5
1
1
51
0.00
0.00
385
0.00
0.00
0.00
Sep
Oct
Oct
6
1
1
WATER YEARS 1941 - 2002
24.41
206
0.26
17800
0.00
0.00
17680
1.6
0.00
0.00
Oct
Oct
Oct
1984
1965
2 1983
1 1940
1 1940
185
GILA RIVER BASIN
09482500 SANTA CRUZ RIVER AT TUCSON, AZ
LOCATION.--Lat 32° 13'19", long 110° 58'52", in SE1/4SE1/4 sec. 11, T.14 S., R.13 E., Pima County, Hydrologic Unit 15050301, on right bank, 300 ft downstream from Congress
Street Bridge, in Tucson.
DRAINAGE AREA.--2,222 mi2, of which 395 mi2 is in Mexico, adjusted for 15.2 mi2 of Tucson Arroyo drainage area contributing to this station effective July 1956.
PERIOD OF RECORD.--Oct. 1905 to Sept. 1981 (monthly discharge only, Jan. 1907 to Sept. 1912, Jan. to Sept. 1914), June 1986 to Sept. 1995 (discharge above 500 ft3/s only),
Oct. 1995 to current year.
REVISED RECORDS.--WSP 859: 1915(M). WSP 1283: Drainage area. WSP 1313: 1939(M). WDR AZ–88–1: 1986–87(M).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 2,320.68 ft above sea level. Prior to Nov. 27, 1929, nonrecording gages or reference points for measuring
to water surface at various places on Congress Street bridge at various datums. Nov. 27, 1929 to Sept. 30, 1981, water-stage recorder at Congress Street bridge: at datum
6.22 ft higher Nov. 27, 1929 to June 18, 1958; at datum 2.22 ft higher June 18, 1958 to May 21, 1963; at datum 3.48 ft lower May 21, 1963 to Oct. 27, 1970; at datum 2.86 ft
lower Oct. 1, 1971, to Sept. 30, 1981. No gage Oct. 27, 1970 to Oct. 1, 1971, and Oct. 10, 1977, to Feb. 14, 1978.
REMARKS.--Records fair, except for estimated daily discharges which are poor. Irrigation above station of about 26,000 acres, including about 2,300 acres in Mexico, mostly
by pumping from ground water. Ground water is also pumped above the station for municipal supply and mining. From Oct. l969 to Sept. 1981, all flow past station was
published, including waste water when known.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 37,400 ft3/s Jan. 19, 1993, gage height, 11.67 ft; no flow for most of each year.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1892, 52,700 ft3/s, from slope-area measurement of peak flow, Oct. 2, 1983; gage height,
22.2 ft, from floodmark, at site and datum used in 1981.
Maximum discharge during the 1985 water year was 10,000 ft3/s Dec. 28, 1984; gage height, 12.5 ft, at site and datum used in 1981.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,700 ft3/s and (or) maximum (*):
Date
Aug. 5............
Sept. 6...........
Sept. 10.........
Time
Discharge (ft3/s)
1815
2130
1645
1,930
*5,640
2,840
Gage height (ft)
4.11
*5.84
4.65
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.54
e21
e8.6
e85
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
e0.50
e0.30
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
22
e1.9
e0.00
e1.4
e7.9
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e5.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e13
0.00
0.00
0.00
0.00
0.00
0.00
211
e1.3
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.99
e1.2
e1.9
0.00
e1.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e30
e7.7
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e9.9
117
e5.7
0.00
0.00
0.00
0.00
0.00
e2.1
15
12
e0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
0.80
0.026
0.50
0.00
0.00
1.6
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
5.90
0.190
5.9
0.00
0.00
12
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
187.39
6.045
117
0.00
0.00
372
0.00
178.54
5.759
85
0.00
0.00
354
0.00
1317.30
43.91
567
0.00
0.00
2610
0.02
6.280
18.8
2000
0.000
1999
34.36
84.2
1999
1.10
2001
22.45
43.6
1999
1.58
2001
5.609
12.5
1999
0.002
2001
e567
99
47
18
374
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1997 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
88.75
355
2001
0.000
1999
21.31
85.1
2001
0.000
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.038
0.069
1999
0.000
2000
0.092
0.28
2001
0.000
1999
0.436
0.79
2000
0.074
2001
FOR 2001 CALENDAR YEAR
656.74
1.799
110
Jan 12
0.00 Jan 1
0.00 Jan 1
1300
0.001
0.44
0.00
0.00
0.289
0.45
2000
0.16
1999
1.246
3.63
1999
0.000
2000
0.000
0.000
1999
0.000
1999
FOR 2002 WATER YEAR
1689.93
4.630
567
Sep
0.00 Oct
0.00 Oct
3350
0.002
0.00
0.00
0.00
6
1
1
WATER YEARS 1997 - 2002
18.55
37.4
2001
5.99
2000
7360
Oct 23 2000
0.00 Jul 25 1998
0.00 Jul 25 1998
13440
0.008
1.4
0.00
0.00
186
GILA RIVER BASIN
09484000 SABINO CREEK NEAR TUCSON, AZ
LOCATION.--Lat 32° 19'00", long 110° 48'35", in SE1/4NE1/4 sec. 9, T.13 S., R.15 E., Pima County, Hydrologic Unit 15050302, on left bank, 30 ft upstream from Lower Sabino
Dam, 0.5 mi north of Coronado National Forest boundary and 12 mi northeast of Tucson City Hall.
DRAINAGE AREA.--35.5 mi2.
PERIOD OF RECORD.--July 1904 to June 1912 (monthly discharge only); June 1932 to Sept. 1974 (continuous-record station); Oct. 1974 to Sept. 1989 (crest-stage
partial-record station); Oct. 1989 to current year.
REVISED RECORDS.--WSP 1213: 1938, 1946. WSP 1283: Drainage area.
GAGE.--Water-stage recorder and concrete control. Elevation of gage is 2,720 ft above sea level, from topographic map. July 1904 to June 1912, water-stage recorder and
sharp-crested weir at site 0.7 mi upstream at different datum. June 1932 to Sept. 1974 (water-stage recorder) and Oct. 1974 to Aug. 1981 (crest-stage gage) at site 1,000 ft
upstream at different datum.
REMARKS.--Records fair, except for estimated daily discharges, which are poor. No diversion above station except for domestic supply.
AVERAGE DISCHARGE.--60 years (water years 1905–11, 1933–74, 1990–2000), 14.6 ft3/s, 10,580 acre-ft/yr; median of yearly mean discharges 8.9 ft3/s, 6,400 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,400 ft3/s July 15, 1999, gage height 8.25 ft from highwater marks, from rating curve extended above
3,000 ft3/s on basis of slope-area measurement at gage height 9.65 ft; no flow at times in most years.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 200 ft3/s and (or) maximum (*):
Date
Aug. 5............
Aug. 9............
Aug. 28..........
Time
Discharge (ft3/s)
2345
2345
2215
*433
254
248
Gage height (ft)
*2.03
1.73
1.72
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.09
0.49
0.18
0.18
0.26
0.33
0.42
0.23
0.17
0.17
0.18
0.16
e0.06
e0.05
e0.03
e0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.2
1.1
1.1
29
74
1.7
1.4
1.2
1.2
1.2
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.55
0.59
0.55
0.50
0.58
0.40
0.40
0.36
0.24
0.22
0.14
0.16
0.28
0.11
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
132
11
4.1
12
68
1.4
2.3
1.9
1.8
30
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.72
0.52
0.31
0.31
0.31
0.29
0.31
0.31
0.31
0.31
0.10
0.08
0.10
0.16
0.11
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5.2
3.3
2.5
1.8
1.5
19
5.0
2.8
2.2
1.7
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.31
0.35
0.42
0.44
0.38
0.35
0.24
0.28
0.32
0.31
0.08
0.08
0.09
0.09
e0.08
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.3
2.0
1.7
1.5
1.3
1.6
1.6
1.5
1.2
1.1
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.37
0.31
0.40
0.38
0.32
0.30
0.27
0.27
0.23
0.18
e0.08
e0.08
e0.08
e0.08
e0.08
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.66
6.7
2.2
1.7
3.5
1.2
1.1
1.1
1.0
0.91
1.1
1.0
0.87
0.76
0.73
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.34
0.26
0.31
0.31
0.39
0.39
0.18
0.18
0.19
-------
e0.08
e0.08
e0.08
e0.07
e0.06
e0.06
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.88
0.83
23
54
4.6
2.2
0.69
0.61
0.57
0.49
0.46
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
11.20
0.36
0.72
0.00
0.37
22
0.01
0.01
7.82
0.28
0.42
0.18
0.28
16
0.01
0.01
3.50
0.11
0.28
0.06
0.09
6.9
0.00
0.00
0.15
0.005
0.06
0.00
0.00
0.3
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
65.56
2.11
31
0.00
0.00
130
0.06
0.07
446.42
14.4
132
0.83
1.8
885
0.41
0.47
89.08
2.97
30
0.46
1.3
177
0.08
0.09
0.53
6.37
1992
0.000
1989
13.1
85.1
1999
0.000
1988
19.9
84.4
1995
1.13
1991
9.06
60.8
1995
0.009
1989
8.8
31
5.1
2.6
1.8
1.5
AUG
SEP
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
6.72
72.8
2001
0.000
1992
10.6
39.7
1995
0.000
1990
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
20.4
114
1993
0.000
1990
49.3
441
1993
0.000
1989
49.2
211
1995
0.000
2000
57.1
311
1991
0.11
2002
FOR 2001 CALENDAR YEAR
3691.25
10.1
124
0.00
0.00
7320
0.28
3.87
34
0.39
0.00
24.9
97.1
1991
0.005
2002
2.77
11.3
1991
0.000
1989
FOR 2002 WATER YEAR
623.73
1.71
Apr
Jun
Jun
7
2
2
132
Aug
0.00 Oct
0.00 Oct
1240
0.048
0.65
1.6
0.00
0.00
6
1
1
WATER YEARS 1988 - 2002
22.7
64.6
0.86
3180
0.00
0.00
16420
0.64
8.68
50
0.81
0.00
Jan
Oct
Jun
1993
2000
8 1993
2 1987
3 1988
187
GILA RIVER BASIN
09484500 TANQUE VERDE CREEK AT TUCSON, AZ
LOCATION.--Lat 32° 15'55", long 110° 50'26", in NE1/4NE1/4NE1/4 sec. 31, T.13 S., R.15 E., Pima County, Hydrologic Unit 15050302, at Sabino Canyon Road, 0.8 mi downstream
from Sabino Creek.
DRAINAGE AREA.--219 mi2.
PERIOD OF RECORD.--June 1940 to Oct. 1945; water years 1966–81, 1988–90 (annual maximums only); Oct. 1990 to current year. Prior to 1945, published as "Rillito Creek
near Wrightstown."
GAGE.--Water-stage recorder. Elevation of gage is 2,470 ft above sea level, from topographic map. Prior to Oct. 1945, at same location at different datum. Oct. 1965 to
Sept. 1981, nonrecording gage at same site at different datum. Oct. 1987 to Sept. 1990, nonrecording gage at same site and datum.
REMARKS.--Records fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,500 ft3/s, Jan. 8, 1993, gage height, 11.85 ft; no flow most of each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
Time
Aug. 5............
Discharge (ft3/s) Gage height (ft)
1745
*128
*6.54
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.1
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.4
0.34
0.00
0.01
0.05
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
5.89
0.190
3.4
0.00
12
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.000
1941
0.000
1941
8.689
119
1999
0.000
1942
1.995
13.3
1993
0.000
1991
0.866
9.17
1998
0.000
1943
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
8.100
144
2001
0.000
1941
7.994
92.9
2001
0.000
1943
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
34.23
248
1941
0.000
1943
103.0
1295
1993
0.000
1943
60.35
329
1998
0.000
1943
60.79
277
1991
0.000
1996
20.26
125
1998
0.000
1943
0.887
3.90
1941
0.000
1944
FOR 2001 CALENDAR YEAR
FOR 2002 WATER YEAR
2114.40
5.793
5.89
0.016
156
Apr 7
0.00 Apr 29
0.00 Apr 29
4190
0.026
0.36
15
0.00
0.00
3.4
Aug
0.00 Oct
0.00 Oct
12
0.000
0.00
0.00
0.00
0.00
6
1
1
WATER YEARS 1941 - 2002
28.23
147
0.013
9840
Jan
0.00 Oct
0.00 Oct
20450
0.13
1.75
24
0.00
0.00
1993
2000
8 1993
1 1940
1 1940
188
GILA RIVER BASIN
09484550 CIENGA CREEK NEAR SONOITA, AZ
LOCATION.--Lat 31° 51'56", long 110° 34'12", in SW1/4NW1/4SW1/4 sec. 13. Pima County, Hydrologic Unit 15050302, north of Sonoita.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Oct. 2001 to current year.
REVISED RECORDS.--WSP 1283: Drainage area. WDR AZ–81–1: Drainage area.
GAGE.--Water-stage recorder and concrete weir. Elevation of gage is 4,180 ft. above sea level, from topographic map.
REMARKS.--Records fair. No known diversion above station.
EXTREMES FOR CURRENT YEAR.--Peak discharge above 300 ft3/s and (or) maximum (*):.
Date
Time
Aug. 5 ...........
Discharge (ft3/s) Gage height (ft)
2115
203
6.54
Minimum daily discharge, 0.18 ft3/s, Sept. 26.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.74
0.81
0.88
0.85
0.80
0.88
0.88
0.88
0.85
0.91
1.0
1.0
1.0
1.0
1.0
1.2
1.2
1.2
1.3
1.2
1.5
1.5
1.5
1.6
1.8
1.5
1.5
1.5
1.5
1.6
1.5
1.5
1.4
1.4
1.4
APR
0.88
0.89
0.88
0.85
0.82
0.44
0.43
0.43
0.44
0.43
0.24
0.24
0.24
0.26
0.27
0.43
0.44
0.56
0.65
15
0.39
0.37
0.36
0.37
0.36
6
7
8
9
10
0.83
0.83
2.2
0.96
0.89
0.94
0.92
0.92
0.93
0.93
1.1
1.1
1.0
1.1
1.1
1.2
1.3
1.3
1.3
1.3
1.6
1.5
1.5
1.5
1.4
1.6
1.5
1.5
1.5
1.5
1.4
1.5
1.5
1.5
1.5
0.81
0.79
0.78
0.80
0.77
0.41
0.41
0.41
0.39
0.37
0.27
0.26
0.28
0.31
0.32
9.1
0.99
0.71
0.69
0.64
0.38
0.43
0.51
0.48
0.53
11
12
13
14
15
0.86
0.83
0.82
0.81
0.81
0.94
0.93
0.99
0.98
0.98
1.2
1.1
1.1
1.1
1.2
1.3
1.3
1.3
1.4
1.4
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.4
1.4
1.4
1.5
1.5
0.75
0.75
0.72
0.68
0.67
0.37
0.35
0.34
0.32
0.31
0.32
0.35
0.33
0.37
0.40
0.58
0.55
0.50
0.46
0.43
0.50
0.46
0.42
0.40
0.38
16
17
18
19
20
0.83
0.83
0.83
0.83
0.82
0.97
0.97
0.97
0.98
0.98
1.1
1.1
1.1
1.1
1.1
1.4
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.3
1.2
1.2
1.1
1.1
0.67
0.66
0.63
0.61
0.61
0.31
0.30
0.28
0.29
0.29
1.2
0.57
0.56
0.53
0.51
1.2
0.55
0.49
0.56
0.58
0.37
0.38
0.39
0.38
0.38
21
22
23
24
25
0.82
0.84
0.88
0.88
0.88
0.98
0.98
0.99
0.99
0.99
1.1
1.1
1.1
1.1
1.1
1.3
1.3
1.4
1.4
1.3
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.1
1.1
1.1
1.0
1.0
0.64
0.67
0.65
0.63
0.59
0.28
0.28
0.26
0.25
0.26
0.48
0.57
0.54
0.52
0.52
0.52
0.48
0.45
0.40
0.38
0.37
0.35
0.34
0.33
0.23
26
27
28
29
30
31
0.86
0.87
0.88
0.88
0.88
0.87
0.99
0.99
1.0
1.0
1.0
---
1.1
1.1
1.1
1.2
1.2
1.2
1.4
1.4
1.4
1.5
1.5
1.5
1.5
1.5
1.5
-------
1.5
1.5
1.5
1.5
1.5
1.5
0.99
1.00
0.94
0.92
0.88
---
0.61
0.60
0.54
0.52
0.48
0.45
0.25
0.25
0.25
0.26
0.25
---
5.3
0.82
0.51
0.47
0.50
0.50
0.36
0.35
0.38
0.41
0.38
0.37
0.18
0.21
0.26
0.28
0.29
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
27.60
0.890
2.2
0.74
0.84
55
28.64
0.955
1.0
0.85
0.97
57
34.0
1.097
1.2
1.0
1.1
67
41.2
1.329
1.5
1.2
1.3
82
42.4
1.514
1.8
1.4
1.5
84
46.7
1.506
1.6
1.5
1.5
93
37.73
1.258
1.5
0.88
1.4
75
21.40
0.690
0.89
0.45
0.67
42
9.91
0.330
0.44
0.25
0.31
20
18.56
0.599
5.3
0.24
0.47
37
39.59
1.277
15
0.35
0.50
79
11.08
0.369
0.53
0.18
0.37
22
189
GILA RIVER BASIN
09484600 PANTANO WASH NEAR VAIL, AZ
LOCATION.--Lat 32° 02'09", long 110° 40'37", in SW1/4SE1/4 sec. 14, T.16 S., R.16 E., Pima County, Hydrologic Unit 15050302, on right bank 60 ft upstream from dam, 2.2 mi
southeast of Vail, and 20 mi southeast of Tucson City Hall.
DRAINAGE AREA.--457 mi2.
PERIOD OF RECORD.--Jan. 1959 to Sept. 1974, water years 1975–89 (annual maximums only), Oct. 1989 to current year.
GAGE.--Water-stage recorder and concrete weir. Elevation of gage is 3,205 ft above sea level, from topographic map. Jan. 1959 to Sept. 1974 (water-stage recorder) and
Oct. 1974 to Sept. 1989 (crest-stage gage) at same site and datum.
REMARKS.--Records fair, except for estimated daily discharges which are poor. No known diversion above station. Records published herein represent flow by gage.
Infiltration flow is not included. Base runoff past gage station consists of downvalley underflow that is brought to the surface by the concrete dam 60 ft downstream
which extends to bedrock.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,000 ft3/s Oct. 1 or 2, 1983, gage height, 15.25 ft, from inside high-water mark, from rating curve extended
above 2,000 ft3/s on basis of slope-area measurements at gage heights 10.9 and 24 ft; no flow June 26 to July 13, Aug. 7, 1971 (result of work on infiltration gallery),
June 27 to July 13, 1973 (result of ponding during construction work on dam), May 28 to June 12, and July 12, 13, 17, and 18, 1974.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1930, about 38,000 ft3/s, Aug. 11, 1958, gage height, about 24 ft, from floodmark, from
slope-area measurement.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,000 ft3/s and (or) maximum (*):
Date
Sept. 10 .........
Time
Discharge (ft3/s)
1500
*1,620
Gage height (ft)
*7.77
Minimum daily discharge, 0.0 ft3/s, Aug. 25, 26, 27, and Sept. 9.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
JUN
JUL
AUG
SEP
1
2
3
4
5
0.45
0.43
0.44
0.42
0.39
0.57
0.57
0.57
0.64
0.69
0.47
0.50
0.42
0.46
0.43
0.63
0.70
0.72
0.72
0.72
1.3
1.3
1.4
1.1
0.75
1.7
1.8
1.9
1.9
1.7
MAR
2.0
1.7
1.7
1.8
2.0
APR
1.4
1.5
1.4
1.5
1.4
MAY
0.14
0.12
0.10
0.09
0.10
0.12
0.15
0.16
0.18
0.20
0.21
0.24
0.33
11
112
0.53
0.52
0.51
0.50
0.51
6
7
8
9
10
0.38
0.34
11
4.5
1.0
0.69
0.68
0.67
0.66
0.66
0.36
0.36
0.38
0.41
0.42
0.71
0.72
0.74
0.72
0.74
0.77
0.79
0.83
0.91
1.1
1.7
1.2
0.82
0.96
0.98
2.3
2.4
2.5
2.2
2.2
1.2
1.1
1.2
1.1
1.1
0.09
0.07
0.07
0.07
0.07
0.19
0.18
0.18
0.19
0.22
64
4.1
6.7
51
e10
11
12
13
14
15
0.95
0.86
0.79
0.77
0.75
0.74
0.73
0.75
0.71
0.61
0.55
3.4
7.8
0.50
0.53
0.74
0.72
0.73
0.74
0.77
1.0
1.2
1.4
1.4
1.5
0.97
0.83
0.95
0.95
1.1
2.1
1.9
1.6
1.3
1.2
0.98
0.91
0.86
0.69
0.71
0.07
0.06
0.07
0.06
0.06
0.30
0.40
0.45
0.56
0.65
e0.26
e0.30
e0.32
e0.35
e0.39
e1.4
e0.84
e0.80
e0.77
e0.77
16
17
18
19
20
0.70
0.71
0.70
0.70
0.69
0.51
0.50
0.49
0.42
0.50
0.50
0.60
0.54
0.53
0.51
0.77
0.78
0.80
0.82
0.92
1.8
1.8
1.5
1.1
1.3
1.2
1.4
1.6
1.4
1.3
1.3
1.2
1.2
1.1
1.1
0.89
0.75
0.65
0.58
0.61
0.05
0.05
0.04
0.09
0.16
0.70
0.70
0.72
0.77
0.75
e0.40
e0.47
e0.49
e0.56
0.47
e0.75
e0.72
e0.72
e0.70
e0.65
21
22
23
24
25
0.61
0.63
0.64
0.65
0.64
0.54
0.44
0.44
0.45
0.39
0.51
0.52
0.54
0.54
0.56
0.91
0.82
0.91
0.82
0.79
1.3
1.5
1.6
1.6
1.6
1.4
1.4
1.5
1.6
1.6
1.1
0.96
1.0
1.1
1.2
0.63
0.52
0.43
0.39
0.36
0.16
0.15
0.16
0.15
0.14
0.81
1.0
1.2
1.5
1.7
0.31
0.19
0.12
0.06
0.00
e0.62
e0.62
e0.57
e0.54
e0.54
26
27
28
29
30
31
0.61
0.59
0.61
0.59
0.59
0.57
0.39
0.40
0.35
0.43
0.45
---
0.58
0.62
0.62
0.67
0.63
0.62
0.78
0.80
0.78
0.77
0.99
1.0
1.6
1.7
1.7
-------
1.7
1.8
2.1
2.1
2.1
2.1
1.3
1.5
1.4
1.5
1.4
---
0.35
0.35
0.29
0.24
0.21
0.17
0.14
0.14
0.13
0.13
0.13
---
11
9.0
0.17
0.18
0.24
0.22
0.00
0.00
17
0.90
0.63
0.54
e0.52
e0.49
e0.47
e0.47
e0.55
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
33.70
1.087
11
0.34
67
0.00
0.00
16.64
0.555
0.75
0.35
33
0.00
0.00
26.08
0.841
7.8
0.36
52
0.00
0.00
24.28
0.783
1.0
0.63
48
0.00
0.00
36.85
1.316
1.8
0.75
73
0.00
0.00
45.76
1.476
2.1
0.82
91
0.00
0.00
47.26
1.575
2.5
0.96
94
0.00
0.00
24.47
0.789
1.5
0.17
49
0.00
0.00
3.06
0.102
0.16
0.04
6.1
0.00
0.00
34.79
1.122
11
0.12
69
0.00
0.00
283.34
9.140
112
0.00
562
0.02
0.02
199.14
6.638
93
0.00
395
0.01
0.02
1.848
20.8
2000
0.070
1974
13.43
49.6
1967
0.22
1997
19.29
92.6
1971
0.52
1973
10.03
105
1964
0.16
1973
0.52
0.54
89
0.00
93
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1960 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
3.234
45.6
2001
0.10
1974
2.480
38.7
2001
0.10
1974
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
5.457
50.3
1966
0.10
1974
6.854
111
1993
0.10
1974
6.557
75.1
1998
0.10
1974
FOR 2001 CALENDAR YEAR
1309.44
3.588
348
Aug 29
0.34 Oct 7
0.40 Dec 3
2600
0.008
0.11
3.7
1.3
0.53
3.636
21.2
1998
0.12
1974
2.299
12.0
1998
0.32
1974
1.176
1.95
1965
0.19
1974
FOR 2002 WATER YEAR
775.37
2.124
112
Aug 5
0.00 Aug 25
0.06 Jun 12
1540
0.005
0.06
1.7
0.70
0.16
WATER YEARS 1960 - 2002
6.449
15.7
1998
1.44
1997
2230
Sep 10 1964
0.00 Jun 26 1971
0.00 Jun 26 1971
4670
0.014
0.19
4.5
1.2
0.40
190
GILA RIVER BASIN
09485000 RINCON CREEK NEAR TUCSON, AZ
LOCATION.--Lat 32° 07'46.5", long 110° 37'31.4", in NW1/4NE1/4 sec. 17, T.15 S., R.17 E., Pima County, Hydrologic Unit 15050302, on left bank 0.2 mi north of Sentinel Butte,
9 mi upstream from mouth, and 22 mi southeast of Tucson City Hall.
DRAINAGE AREA.--44.8 mi2.
PERIOD OF RECORD.--Oct. 1952 to Sept. 1974, Oct. 1974 to Sept. 1989 (crest-stage partial-record station), Oct. 1989 to current year.
GAGE.--Water-stage recorder and concrete control. Elevation of gage is 3,120 ft above sea level, from topographic map. Oct. 1952 to Sept. 1974 (water-stage recorder) and
Oct. 1974 to Sept. 1989 (crest-stage gage) at same site and datum.
REMARKS.--Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 9,660 ft3/s Aug. 19, 1971, gage height, 10.5 ft, from inside high-water mark, from rating curve extended above
1,800 ft3/s on basis of slope-area measurement at gage heights 6.50 ft and 9.90 ft; no flow for many days in each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 300 ft3/s and (or) maximum (*):
Date
Aug. 5............
Time
Discharge (ft3/s)
2315
*88
Gage height (ft)
*3.42
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
30
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
38
7.7
7.1
3.4
0.85
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.25
0.16
0.12
0.08
0.05
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.56
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.60
0.019
0.56
0.00
1.2
0.00
0.00
98.75
3.19
38
0.00
196
0.07
0.08
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.056
1.48
1971
0.000
1953
1.18
12.6
1955
0.000
1960
9.80
64.0
1955
0.000
1956
2.76
19.1
1970
0.000
1953
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1953 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
2.41
42.9
2001
0.000
1953
2.07
44.4
2001
0.000
1953
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
8.74
130
1966
0.000
1953
16.3
247
1993
0.000
1953
15.0
85.8
1998
0.000
1953
FOR 2001 CALENDAR YEAR
1518.47
4.16
62
Mar 8
0.00 May 31
0.00 May 31
3010
0.093
1.26
16
0.14
0.00
12.9
74.4
1973
0.000
1955
3.92
42.0
1998
0.000
1955
0.18
1.95
1973
0.000
1953
FOR 2002 WATER YEAR
99.35
0.27
38
Aug
0.00 Oct
0.00 Oct
197
0.006
0.08
0.00
0.00
0.00
6
1
1
WATER YEARS 1953 - 2002
6.38
33.4
0.072
1400
Jan
0.00 Oct
0.00 Oct
4630
0.14
1.94
11
0.00
0.00
1993
1956
8 1993
1 1952
1 1952
191
GILA RIVER BASIN
09485450 PANTANO WASH AT BROADWAY BOULEVARD, AT TUCSON, AZ
LOCATION.--Lat 32° 13'14", long 110° 49'44", in NW1/4NE1/4 sec. 17, T.14 S., R.15 E., Pima County, Hydrologic Unit 15050302, near right bank on downstream side of eastbound
bridge on Broadway Blvd., 4.6 mi upstream from mouth, and 8.3 mi east of intersection with Stone Avenue in Tucson.
DRAINAGE AREA.--599 mi2.
PERIOD OF RECORD.--Water years 1979–81, 1984, 1988–90 (annual maximums only), Oct. 1990 to current year.
REVISED RECORDS.--WDR AZ–88–1: 1984(M).
GAGE.--Water-stage recorder. Datum of gage is 2,568.83 ft above sea level.
REMARKS.--Records fair, except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,000 ft3/s Oct. 1, 1983, gage height, 8.60 ft; no flow for many days each year.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Aug. 12, 1958, reached a discharge of 20,000 ft3/s at Tanque Verde Road, 2.3 mi downstream.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,500 ft3/s and (or) maximum (*):
Date
Sept. 10 ........
Time
Discharge (ft3/s)
1900
*529
Gage height (ft)
*3.18
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
30
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
3.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.2
13
0.00
0.00
1.8
0.68
0.00
16
3.9
44
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2.6
0.00
7.4
0.02
0.00
0.00
0.00
0.00
0.00
16
e1.3
e0.00
e0.00
e0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
e0.00
e0.00
e0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.29
9.2
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
e0.00
e0.00
e0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
3.20
0.103
3.2
0.00
0.00
6.3
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
19.51
0.629
9.2
0.00
0.00
39
0.00
46.00
1.484
30
0.00
0.00
91
0.00
81.88
2.729
44
0.00
0.00
162
0.00
6.545
19.6
2000
0.000
1999
10.26
30.4
1999
0.000
2001
15.47
34.8
1999
0.026
2001
1.891
6.48
1999
0.000
2001
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
13.25
52.8
2001
0.000
1999
4.796
19.1
2001
0.000
2000
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.000
0.000
1999
0.000
1999
0.005
0.021
2001
0.000
1999
0.000
0.000
1999
0.000
1999
0.004
0.016
2000
0.000
1999
FOR 2001 CALENDAR YEAR
4.67
0.013
3.2
Oct
0.00 Jan
0.00 Jan
9.3
0.000
0.00
0.00
0.00
0.002
0.005
1999
0.000
2000
0.000
0.000
1999
0.000
1999
FOR 2002 WATER YEAR
150.59
0.413
8
1
1
44
Sep 10
0.00 Oct 1
0.00 Oct 1
299
0.001
0.00
0.00
0.00
WATER YEARS 1998 - 2002
5.299
6.08
1999
3.77
2000
1050
Jul 20 1998
0.00 Jul 24 1998
0.00 Jul 24 1998
3840
0.009
0.00
0.00
0.00
192
GILA RIVER BASIN
09485700 RILLITO CREEK AT DODGE BOULEVARD, AT TUCSON, AZ
LOCATION.--Lat 32° 16'17", long 110° 54'50", in NE1/4NW1/4SE1/4 sec. 28, T.13 S., R.14 E., Pima County, Hydrologic Unit 15050302, on right bank, at downstream side of bridge
on Dodge Boulevard, 0.4 mi north of intersection of Ft. Lowell Road and Dodge Boulevard in Tucson.
DRAINAGE AREA.--871 mi2.
PERIOD OF RECORD.--Water years 1988–90 (annual maximums only), Oct. 1990 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 2,380 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,100 ft3/s Jan. 8, 1993, gage height, 14.84 ft; no flow for many days each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
Time
Discharge (ft3/s)
Aug. 5 ...........
1815
*5,930
*7.61
Aug. 28 .........
1730
1,830
5.90
Sept. 6 ..........
1730
1,140
5.50
Gage height (ft)
Minimum daily discharge, no flow for most of year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.06
0.00
0.00
e0.00
e0.21
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e366
0.00
0.00
0.00
0.00
e0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e11
e231
0.00
0.00
0.00
e66
e0.05
e5.0
e3.4
e25
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e4.4
e0.05
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e2.0
e0.14
0.00
0.00
0.00
0.00
0.00
e5.7
e0.0
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.50
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
e5.4
e0.0
0.00
0.00
0.00
0.00
e0.00
e90
e0.23
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.06
0.002
0.06
0.00
0.1
0.00
0.00
4.66
0.15
4.4
0.00
9.2
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
8.04
0.26
5.4
0.00
16
0.00
0.00
698.23
22.5
366
0.00
1380
0.03
0.03
105.15
3.50
66
0.00
209
0.00
0.00
1.31
15.3
2000
0.000
1991
11.1
109
1999
0.000
1991
11.5
26.5
2000
0.000
1991
7.68
64.5
1996
0.000
1991
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1991 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
15.2
182
2001
0.000
1991
8.14
48.7
1995
0.000
1991
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
37.8
278
1993
0.000
1994
145
1443
1993
0.000
1994
61.3
214
1998
0.000
1994
FOR 2001 CALENDAR YEAR
985.66
2.70
341
Aug 30
0.00 Jan 1
0.00 Jan 1
1960
0.003
0.04
0.27
0.00
0.00
47.7
263
1991
0.000
1996
13.5
78.8
1998
0.000
1993
0.000
0.000
1991
0.000
1991
FOR 2002 WATER YEAR
816.14
2.24
366
Aug
0.00 Oct
0.00 Oct
1620
0.003
0.03
0.00
0.00
0.00
5
1
1
WATER YEARS 1991 - 2002
32.7
164
0.12
11300
Jan
0.00 Oct
0.00 Oct
23720
0.038
0.51
10
0.00
0.00
1993
1994
8 1993
1 1990
1 1990
193
GILA RIVER BASIN
09486055 RILLITO CREEK AT LA CHOLLA BOULEVARD, NEAR TUCSON, AZ
LOCATION.--Lat 32° 18'12", long 111° 00'41", in SW1/4SW1/4NW1/4 sec. 15, T.13 S., R.13 E., Pima County, Hydrologic Unit 15050301, on right bank, 200 ft upstream from bridge
on La Cholla Boulevard, 1.8 mi downstream from former gage, Rillito Creek near Tucson, 3.0 mi upstream from mouth, and 5.8 mi north of Tucson City Hall.
DRAINAGE AREA.--922 mi2.
PERIOD OF RECORD.--June 1990 to Sept. 1995 (published mean daily discharges over 200 ft3/s), Oct. 1995 to current year.
GAGE.--Water-stage recorder and crest-stage gages. Elevation of gage is 2,260 ft above sea level, from topographic map.
REMARKS.-- Records poor. Only discharges above 25 ft3/s are recorded. Several small diversions above station for irrigation and for municipal and domestic supply, mostly
by pumping from ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,400 ft3/s Jan. 8, 1993, gage-height 11.39 ft; no flow for most of each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
Time
Discharge (ft3/s)
Gage height (ft)
Date
Time
Discharge (ft3/s)
Gage height (ft)
July 27 ..........
1000
564
3.49
Aug. 28..........
1930
2,710
4.47
Aug. 5............
1915
*9,830
6.65
Sept. 6...........
2000
2,340
4.35
Aug. 7............
0330
3,030
4.56
Sept. 10.........
1715
1,710
4.11
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e21.0
23
e788
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e21
e235
0.00
0.00
0.00
e162
e1.2
0.00
0.00
e154
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e19
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e66
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e6.9
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e7.0
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
e43
0.00
0.00
0.00
0.00
0.00
0.00
e211
e0.48
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
19.00
0.613
19
0.00
7.00
0.226
7.0
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
49.90
1.610
43
0.00
1299.48
41.92
788
0.00
383.20
12.77
162
0.00
2.074
12.4
2000
0.000
1996
24.91
140
1999
0.000
1996
6.797
20.0
1999
0.000
1997
10.08
53.7
1996
0.000
1997
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
42.67
299
2001
0.000
1996
9.285
64.9
2001
0.000
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.040
0.28
2002
0.000
1996
0.016
0.11
2002
0.000
1996
20.97
148
1998
0.000
1996
FOR 2001 CALENDAR YEAR
61.50
0.168
30
0.00
0.00
0.00
0.00
0.00
1.431
10.0
1998
0.000
1996
5.294
31.3
1998
0.000
1996
0.000
0.000
1996
0.000
1996
FOR 2002 WATER YEAR
1758.58
4.818
Aug 30
Jan 1
Jan 1
788
0.00
0.00
0.00
0.00
0.00
Aug
Oct
Oct
5
1
1
WATER YEARS 1996 - 2002
11.27
30.8
2001
0.000
1997
5290
Oct 23 2000
0.00 Oct 1 1995
0.00 Oct 1 1995
0.00
0.00
0.00
194
GILA RIVER BASIN
09486350 CANADA DEL ORO BELOW INA ROAD, NEAR TUCSON, AZ
LOCATION.--Lat 32° 20'10", long 111° 02'29", in NW1/4NE1/4NW1/4 sec. 5, T.13 S., R.13 E., Pima County, Hydrologic Unit 15050301, on left bank, 0.125 mi downstream from
Ina Road, 0.25 mi upstream from Thornydale Rd., 1.5 mi upstream from mouth, and 7.3 mi north of Tucson.
DRAINAGE AREA.--255 mi2.
PERIOD OF RECORD.--May 1990 to Sept. 1995 (discharge above 200 ft3/s only), Oct. 1995 to current year.
GAGE.--Water-stage recorder and crest-stage gages. Elevation of gage is 2,240 ft above sea level, from topographic map.
REMARKS.--Records poor. Lago del Oro—capacity 9,400 acre-ft—19.6 mi upstream, has contained no storage since May 4, 1971, as gates were opened by court order;
however, peak flows are regulated while passing through the lake.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
Aug. 28..........
Time
Discharge (ft3/s)
2230
*373
Gage height (ft)
*9.48
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e4.2
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
0.00
0.00
0.00
0.00
0.00
e1.9
0.00
0.00
e0.75
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.73
e0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e12
e0.27
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.000
0.00
0.00
17.20
0.555
12
0.00
2.65
0.088
1.9
0.00
0.086
0.43
1997
0.000
1996
2.112
9.97
1998
0.000
1996
2.510
6.09
1996
0.081
1998
0.814
4.01
1996
0.000
1999
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
5.150
33.9
2001
0.000
1996
0.031
0.22
1997
0.000
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.005
0.035
1999
0.000
1996
0.162
1.13
1997
0.000
1996
1.028
4.72
1998
0.000
1996
FOR 2001 CALENDAR YEAR
12.70
0.035
7.7
0.00
0.00
0.00
0.00
0.00
0.022
0.15
2000
0.000
1996
0.020
0.070
1998
0.000
1996
0.097
0.58
1997
0.000
1996
FOR 2002 WATER YEAR
19.85
0.054
Aug 19
Jan 1
Jan 1
12
0.00
0.00
0.00
0.00
0.00
Aug 28
Oct 1
Oct 1
WATER YEARS 1996 - 2002
1.100
2.91
2001
0.30
1999
1020
Oct 10 2000
0.00 Oct 1 1995
0.00 Oct 1 1995
0.00
0.00
0.00
195
GILA RIVER BASIN
09486500 SANTA CRUZ RIVER AT CORTARO, AZ
LOCATION.--Lat 32° 21'04", long 111° 05'38", in NW1/4NW1/4NW1/4 sec. 35, T.12 S., R.12 E., Pima County, Hydrologic Unit 15050302, at center column of bridge pier on left
bank, 0.5 mi southwest of Cortaro, 1 mi downstream from Ina Road treatment plant, 2.6 mi downstream from Canada del Oro, and 3.7 mi downstream from Rillito Creek.
DRAINAGE AREA.--3,503 mi2, of which 395 mi2 is in Mexico.
PERIOD OF RECORD.--Oct. 1939 to June 1947 (published as "at Rillito"), July 1950 to Sept. 1984, Mar. to June 1990, July to Sept. 1990 (fragmentary record), Oct. 1990 to
current year.
REVISED RECORDS.--WSP 1283: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 2,100.00 ft, above sea level. Prior to June 30, 1947, at site 5.5 mi downstream at different datum. July 8, 1950, to Jan. 20,
1966, at present site at datum 19.11 ft lower. Jan. 20, 1966, to Sept. 30, 1984, at present site and datum 23.11 ft lower. Aug. 1 to Oct. 19, 1990, at site on right bank 0.33
mi. downstream from bridge at datum 30.20 ft lower. Apr. 10 to May 17, 1991, at site on bridge, 200 ft toward right bank, at different datum. Supplementary water-stage
recorder on downstream site on left bridge pier at datum 19.11 ft lower Aug. 29, 1969, to Sept. 30, 1984. Temporary water-stage recorder on right bank Oct. 27, 1983, to
Sept. 30, 1984, at datum 20.80 ft lower. Prior to May 8 at site 300 ft upstream at different datum.
REMARKS.--Records fair, except for estimated daily discharges, which are poor. Many diversions above station, mostly by pumping from ground water, for irrigation of about
34,000 acres. Waste water from irrigation and from sewage-disposal plants is included in flow past station in water years 1951, 1952, 1970–82, 1990–97.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 65,000 ft3/s Oct. 2, 1983, gage height 16.57 ft from floodmark, computed by flood-routing method from
Santa Cruz River at Tucson and Rillito Creek at Tucson; no natural flow for most of each year. (See REMARKS)
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,700 ft3/s and (or) maximum (*):
Time
Discharge (ft3/s)
Aug. 5 ............
2115
*8,340
Sept. 7...........
0045
4,450
8.62
Sept. 10 .........
2015
3,710
8.19
Date
Gage height (ft)
*10.41
Minimum daily discharge, no natural flow for most of year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
59
67
66
65
55
62
65
60
59
61
64
64
65
65
65
76
76
74
78
74
72
67
73
69
72
74
74
75
76
77
66
66
67
68
67
63
68
70
70
68
63
61
63
62
61
67
66
64
64
64
69
73
233
67
706
60
61
68
65
67
6
7
8
9
10
55
54
59
57
52
63
65
67
66
64
70
72
67
69
70
78
79
80
80
77
69
70
73
72
71
77
79
82
80
77
65
68
69
67
65
70
64
56
63
75
64
63
62
62
63
58
60
63
64
64
345
133
59
56
54
207
735
e74
e104
e1320
11
12
13
14
15
51
53
51
52
57
65
68
64
59
65
75
74
77
77
72
79
77
76
76
73
68
64
66
63
68
76
72
69
70
74
64
68
66
65
64
75
66
63
62
61
62
62
63
65
63
68
65
66
77
178
54
54
55
50
59
506
73
66
62
54
16
17
18
19
20
55
55
58
58
56
62
64
67
69
67
71
73
71
67
68
75
74
78
77
77
72
70
73
73
71
73
73
71
74
73
62
63
62
64
61
62
63
64
63
63
63
65
64
64
66
61
63
64
70
67
64
52
54
55
53
53
55
49
51
57
21
22
23
24
25
62
67
63
63
65
68
68
63
65
66
70
68
73
74
63
78
76
69
71
73
69
69
73
65
70
74
71
69
70
69
61
65
63
64
64
63
61
61
64
62
65
67
66
67
66
70
73
124
79
77
48
52
e56
47
53
53
52
52
49
51
26
27
28
29
30
31
63
61
61
62
57
60
68
67
69
62
63
---
64
72
77
73
72
77
69
67
69
67
69
68
69
68
71
-------
65
67
72
68
68
69
63
65
67
68
62
---
56
57
61
62
62
64
66
66
65
62
56
---
86
290
61
61
64
64
56
58
111
132
77
61
50
55
52
59
57
---
1819
58.68
67
51
3610
0.02
1941
64.70
69
59
3850
0.02
2179
70.29
77
63
4320
0.02
2310
74.52
80
67
4580
0.02
1950
69.64
73
63
3870
0.02
2258
72.84
82
65
4480
0.02
1949
64.97
69
61
3870
0.02
1982
63.94
75
56
3930
0.02
1907
63.57
67
56
3780
0.02
2462
79.42
290
58
4880
0.02
3096
99.87
706
47
6140
0.03
4317
143.9
1320
49
8560
0.04
20.70
84.9
2000
0.000
1941
75.49
393
1954
1.69
1960
115.9
868
1955
1.97
1962
59.03
358
1964
0.000
1953
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
50.92
744
1978
0.000
1940
30.40
228
2001
0.000
1943
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
81.89
1044
1979
0.000
1943
99.76
2485
1993
0.000
1943
48.13
252
1995
0.000
1943
FOR 2001 CALENDAR YEAR
40.44
496
1978
0.000
1940
20.55
104
1998
0.000
1940
19.27
65.8
1999
0.000
1940
FOR 2002 WATER YEAR
22802
62.47
28170
77.18
249
Apr 6
30
Apr 13
47
Apr 12
45230
0.018
72
60
53
1320
Sep 10
47
Aug 24
52
Sep 22
55880
0.022
77
66
56
WATER YEARS 1940 - 2002
55.81
262
2.59
40000
Oct
0.00 Oct
0.00 Oct
40430
0.016
69
13
0.00
1993
1956
2 1983
1 1939
1 1939
196
GILA RIVER BASIN
09486520 SANTA CRUZ RIVER AT TRICO ROAD, NEAR MARANA, AZ
LOCATION.--Lat 32° 28'17", long 111° 18'25", in NE1/4SE1/4, sec. 15, T.11 S., R.10 E., in Pima County, Hydrologic Unit 15050303, on right bank 750 ft upstream from Trico Road
bridge, 5 mi west of Marana, and 24 mi northwest of Tucson.
DRAINAGE AREA.--3,641 mi2.
PERIOD OF RECORD.--Apr. 1989 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 1,910 ft above sea level, from topographic map.
REMARKS.--Records poor. Base flow is effluent from combined municipal sewage treatment plants at Ina Road, 17.6 mi upstream and Roger Rd., 20 mi. upstream.
EXTREMES FOR PERIOD OF RECORD.--Maximum mean daily discharge, 15,000 ft3/s Jan. 19, 1993; no flow for many days some years.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,700 ft3/s and (or) maximum (*):
Date
Aug. 6 ...........
Minimum daily discharge, 2.30 ft
Time
Discharge (ft3/s)
0315
*3,440
Gage height (ft)
*8.12
3/s, Aug. 9.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
1
2
3
4
5
18
20
29
27
25
24
31
25
30
25
34
39
37
34
34
e44
e45
45
43
42
e49
53
57
56
e40
35
34
38
35
41
26
29
25
29
29
17
21
25
23
24
18
21
18
18
18
13
18
15
14
14
21
24
e22
68
21
6
7
8
9
10
16
20
21
22
21
24
29
34
35
27
38
48
41
38
42
41
50
41
40
37
35
38
41
37
36
42
44
47
40
41
23
24
30
29
28
26
24
17
8.7
22
18
19
17
17
13
13
9.7
6.6
7.2
9.8
259
e42
e6.7
e2.3
2.4
22
506
49
137
62
11
12
13
14
15
14
15
12
18
11
28
32
35
28
30
46
e44
e43
43
41
37
36
36
39
37
36
29
32
31
32
42
36
38
31
40
24
28
28
26
23
25
27
17
15
16
13
10
9.7
e12
e15
11
15
11
16
43
5.4
9.9
7.6
9.0
e9.3
771
44
22
e19
e21
16
17
18
19
20
14
15
15
16
16
29
26
31
31
25
39
41
41
39
34
41
41
40
e43
46
35
39
39
46
46
38
41
46
47
45
21
24
23
26
24
15
15
17
23
23
18
17
18
e19
e19
24
26
24
23
23
e8.7
e14
15
22
15
e23
25
26
18
18
21
22
23
24
25
17
24
e25
e27
e26
32
33
33
29
30
37
35
36
39
38
47
51
44
e44
e43
43
38
45
53
58
44
44
46
46
37
23
25
24
23
25
22
23
22
21
24
20
20
18
14
12
21
22
52
45
26
13
11
16
10
14
7.5
13
20
11
11
26
27
28
29
30
31
27
22
26
29
23
22
34
31
33
31
34
---
28
34
44
45
44
44
e45
46
47
46
43
49
53
42
34
-------
33
30
31
37
31
35
26
23
26
23
27
---
20
12
14
16
14
14
10
12
9.9
10
12
---
30
34
100
17
21
23
18
15
21
216
45
15
13
9.8
11
15
22
---
633
20.4
29
11
1260
899
30.0
35
24
1780
1220
39.4
48
28
2420
1329
42.9
51
36
2640
1173
41.9
58
29
2330
1215
39.2
47
30
2410
764
25.5
30
21
1520
465.6
15.5
21
9.7
924
727.3
23.5
100
6.6
1440
978.3
31.6
259
2.3
1940
1979.3
66.0
771
7.5
3930
7.56
22.8
2000
0.000
1991
44.7
318
1990
0.000
1991
23.4
49.1
2000
2.00
1991
33.0
207
1996
0.000
1995
TOTAL
MEAN
MAX
MIN
AC-FT
MAY
602.7
19.4
27
8.7
1200
JUN
JUL
AUG
SEP
18
12
18
16
19
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
39.1
337
2001
0.000
1996
23.9
73.0
2001
1.76
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
36.0
157
1995
3.83
2001
158
1509
1993
9.60
1992
63.9
294
1998
0.000
1993
FOR 2001 CALENDAR YEAR
7216.37
19.8
73
0.00
4.9
14310
37
18
6.8
26.3
82.1
1991
0.000
1993
14.9
41.1
1998
0.000
1991
8.51
19.4
2002
0.000
1991
FOR 2002 WATER YEAR
11986.2
32.8
Apr 6
Apr 14
Jun 27
771
2.3
6.2
23770
45
26
13
Sep 11
Aug 9
Aug 8
WATER YEARS 1990 - 2002
40.0
135
9.71
15000
0.00
0.00
28950
38
12
0.00
1993
1997
Jan 19 1993
Jul 28 1990
Jul 28 1990
197
GILA RIVER BASIN
09486580 ARIVACA CREEK AT ARIVACA, AZ
LOCATION.--Lat 31° 34'24", long 111° 19'56", in SW1/4SW1/4SE1/4, sec. 28, T.21 S., R.10 E., Pima County, Hydrologic Unit 15050301, on the right bank, in the Arivaca quad.
DRAINAGE AREA.--56.8 mi2, from topographic map.
PERIOD OF RECORD.--June 1996 to April 30, 2002, when gage was discontinued.
GAGE.--Water-stage recorder and data collection platform. Datum of gage is 3,600 ft above sea level. U.S. Fish and Wildlife Service has taken measurements since 1991.
U.S. Geological Survey operated a gage 4 mi downstream (09486600) from 1967 to 1972.
REMARKS.--Records fair, except for estimated daily discharges, which are poor. No known regulation except for a few small stock ponds.
EXTREMES FOR PERIOD OF RECORD.--At site 4 mi downstream (09486600), maximum discharge 3,550 ft3/s Dec. 20, 1967 (gage height, 7.18 ft from highwater mark in
gage well), from rating curve extended above 260 ft3/s on basis of slope-area measurement at gage height 13.32 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Dec. 24, 1965, reached a stage of 13.32 ft from a profile past gage (4 mi downstream) (discharge, 15,900 ft3/s, by
slope-area measurement of peak flow); flood resulted from storm runoff and failure of two earth dams which were storing an estimated 2,000 acre-ft.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 100 ft3/s and (or) maximum (*):
Date
Dec. 11..........
Time
Discharge (ft3/s)
1545
*1.7
Gage height (ft)
*8.41
Minimum daily discharge, 0.21 ft3/s Oct. 3 and Nov. 1.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.26
0.26
0.21
0.25
0.25
e0.21
e0.22
e0.25
e0.22
e0.27
e0.46
e0.46
e0.47
0.77
0.61
0.72
0.73
0.70
0.70
0.64
0.65
0.65
0.65
0.74
0.67
0.49
0.48
0.47
0.51
0.54
0.44
0.44
0.41
0.41
0.43
-----------
-----------
-----------
-----------
-----------
6
7
8
9
10
0.26
0.25
0.26
0.25
0.31
e0.26
e0.32
e0.33
e0.37
e0.36
0.57
0.54
0.51
0.53
0.55
0.60
0.61
0.61
0.63
0.65
0.60
0.61
0.59
0.58
0.51
0.52
0.50
0.54
0.53
0.53
0.44
0.44
0.47
0.51
0.49
-----------
-----------
-----------
-----------
-----------
11
12
13
14
15
0.25
0.25
0.29
0.31
0.25
e0.41
e0.39
e0.46
e0.47
e0.48
1.1
0.97
0.79
0.73
0.85
0.63
0.62
0.65
0.69
0.70
0.56
0.61
0.60
0.59
0.58
0.52
0.54
0.56
0.52
0.51
0.49
0.49
0.55
0.55
0.57
-----------
-----------
-----------
-----------
-----------
16
17
18
19
20
0.28
0.33
0.30
0.25
0.33
e0.59
e0.49
e0.51
e0.53
e0.48
0.76
0.72
0.72
0.74
0.71
0.66
0.69
0.69
0.82
0.70
0.60
0.58
0.62
0.60
0.60
0.54
0.56
0.68
0.69
0.66
0.58
0.64
0.59
0.54
0.60
-----------
-----------
-----------
-----------
-----------
21
22
23
24
25
0.31
0.31
0.34
0.29
0.32
e0.48
e0.51
e0.52
e0.47
e0.50
0.61
0.51
0.55
0.59
0.60
0.66
0.66
0.71
0.63
0.63
0.59
0.57
0.59
0.60
0.58
0.69
0.67
0.61
0.66
0.67
0.65
0.68
0.72
e0.73
e0.73
-----------
-----------
-----------
-----------
-----------
26
27
28
29
30
31
0.29
e0.26
e0.27
e0.28
e0.31
e0.23
e0.52
e0.52
e0.49
e0.46
e0.43
---
0.61
0.63
0.65
0.67
0.69
0.73
0.65
0.66
0.63
0.64
0.78
0.70
0.53
0.54
0.54
-------
0.68
0.71
0.82
0.59
0.46
0.47
e0.73
e0.73
e0.73
e0.73
e0.77
---
-------------
-------------
-------------
-------------
-------------
TOTAL
MEAN
MAX
MIN
AC-FT
8.61
0.28
0.34
0.21
17
12.52
0.42
0.59
0.21
25
20.40
0.66
1.1
0.46
40
20.79
0.67
0.82
0.60
41
16.73
0.60
0.74
0.51
33
17.92
0.58
0.82
0.46
36
17.28
0.58
0.77
0.41
34
-----------
-----------
-----------
-----------
-----------
e
Estimated
198
GILA RIVER BASIN
09486590 ARIVACA CREEK NEAR ARIVACA, AZ
LOCATION.--Lat, long undetermined. 1.5 mi west of Arivaca, on the Arivaca/Sasabe Hwy.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Apr. 30, 2002, to current year.
GAGE.--Water-stage recorder and data collection platform. Datum of gage is undetermined. U.S. Fish and Wildlife Service has taken measurements 1.5 mi upstream since
1991. U.S. Geological Survey operated a gage 2.5 mi downstream (09486600) from 1967 to 1972. U.S. Geological Survey operated a gage 1.5 mi upstream (09486580)
from 1996 to 2002.
REMARKS.--Records good. No known regulation except for a few small stock ponds.
EXTREMES FOR PERIOD OF RECORD.--At site 2.5 mi. downstream (09486600) , maximum discharge 3,550 ft3/s Dec. 20, 1967 (gage height 7.18 ft. from highwater mark in
gage well), from rating curve extended above 260 ft3/s on basis of slope-area measurement at gage height 13.32 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Dec. 24, 1965, reached a stage of 13.32 ft. from a profile past gage (4 mi. downstream) (discharge 15,900 ft3/s, by
slope area measurement of peak flow); flood resulted from storm runoff and failure of two earth dams which were storing an estimated 2,000 acre ft.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 100 ft3/s and (or) maximum (*):
Date
Aug. 2............
Time
Discharge (ft3/s)
1745
*254
Gage height (ft)
*4.22
Minimum daily discharge, no flow for most of the year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
-----------
-----------
-----------
-----------
-----------
-----------
-----------
0.06
0.04
0.04
0.03
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
29
11
1.0
0.61
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
-----------
-----------
-----------
-----------
-----------
-----------
-----------
0.01
0.02
0.02
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.43
0.15
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
-----------
-----------
-----------
-----------
-----------
-----------
-----------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
-----------
-----------
-----------
-----------
-----------
-----------
-----------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
-----------
-----------
-----------
-----------
-----------
-----------
-----------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
4.1
8.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
-------------
-------------
-------------
-------------
-------------
-------------
-------------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.23
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
-------------
-------------
-------------
-------------
-------------
-------------
-------------
0.25
0.008
0.06
0.00
0.00
0.5
0.00
0.000
0.00
0.00
0.00
0.00
12.63
0.407
8.3
0.00
0.00
25
42.23
1.362
29
0.00
0.00
84
0.00
0.000
0.00
0.00
0.00
0.00
199
GILA RIVER BASIN
09486800 ALTAR WASH NEAR THREE POINTS, AZ
LOCATION.--Lat 31° 50'20", long 111° 24'13", in SE1/4NE1/4NE1/4 sec. 27, T.18 S., R.9 E., Pima County, Hydrologic Unit 15050304, on right bank attached to downstream side
of bridge on State Highway 286, 0.3 mi below mouth of Chiltipines Wash and 18 mi south of Three Points.
DRAINAGE AREA.--463 mi2.
PERIOD OF RECORD.--Jan. 1966 to Sept. 1975, May 1992 to current year.
GAGE.--Water-stage recorder and crest-stage gages. Datum of gage is 2,975.15 ft above sea level.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 22,000 ft3/s Sept. 4, 1970, gage height 13.85 ft at site 2 mi upstream.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 800 ft3/s and (or) maximum (*):
Date
Discharge (ft3/s)
July 25 ...........
*696
Gage height (ft)
*2.91
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
6.7
0.72
13
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
14
0.10
7.7
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.04
0.00
0.00
0.00
0.00
0.00
0.00
22
0.63
38
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
28
0.04
3.2
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
19
26
12
61
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
21.80
0.70
14
0.00
43
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
118.10
3.81
61
0.00
234
62.70
2.02
28
0.00
124
60.63
2.02
38
0.00
120
3.13
58.9
2000
0.000
1968
16.0
102
1999
0.000
1993
21.6
73.5
1974
0.68
1992
20.9
210
1970
0.000
1968
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.89
6.74
1973
0.000
1967
0.22
3.22
1997
0.000
1967
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
2.17
38.6
1968
0.000
1967
0.001
0.021
2001
0.000
1967
0.20
3.62
1998
0.000
1967
0.92
15.3
1973
0.000
1967
FOR 2001 CALENDAR YEAR
500.64
1.37
447
0.00
0.00
993
0.00
0.00
0.00
0.000
0.003
1995
0.000
1967
0.002
0.045
1967
0.000
1968
FOR 2002 WATER YEAR
263.23
0.72
Aug
Jan
Jan
5
1
1
61
0.00
0.00
522
0.00
0.00
0.00
Jul 25
Oct 1
Oct 9
WATER YEARS 1967 - 2002
5.81
20.0
0.53
5460
0.00
0.00
4210
0.00
0.00
0.00
Sep
Oct
Oct
1970
1995
4 1970
1 1966
1 1966
200
GILA RIVER BASIN
09487000 BRAWLEY WASH NEAR THREE POINTS, AZ
LOCATION.--Lat 32° 04'32", long 111° 20'17", in SE1/4NE1/4SW1/4 sec. 32, T.15 S., R.10 E., Pima County, Hydrologic Unit 15050302, on right bank downstream side of State
Highway 86 bridge, 1.6 mi west of Three Points, and 23 mi west of Tucson.
DRAINAGE AREA.--776 mi2.
PERIOD OF RECORD.--Oct. 1966 to Sept. 1981 (crest-stage gage) at site 1,000 ft downstream, May 1992 to current year.
GAGE.--Water-stage recorder and crest-stage gages. Elevation of gage is 2,540 ft above sea level, from topographic map. Prior to May 19, 1992 gage was located 1,000 ft
downstream from current location.
REMARKS.--Records poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge 13,700 ft3/s Sept. 4, 1970, gage height 15.8 ft site and datum then in use; no flow for most of each year.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 19,100 ft3/s Oct. 1, 1983, from contracted opening measurement of peak flow, gage height 12.07 ft from
floodmarks.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
July 25 ..........
Time
Discharge (ft3/s)
2315
*240
Gage height (ft)
*7.67
Minimum daily discharge, no flow for most of year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
e5.6
e3.9
e0.76
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e3.2
e0.81
e3.2
e1.2
e5.6
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e2.4
e4.1
e0.65
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.33
e18
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e20
e18
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
10.26
0.331
5.6
0.00
20
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
56.33
1.817
20
0.00
112
7.15
0.231
4.1
0.00
14
14.01
0.467
5.6
0.00
28
1.526
15.2
2000
0.000
1993
15.30
110
1999
0.000
1993
21.15
63.9
1997
0.000
1994
18.76
87.6
1999
0.000
1993
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
3.778
26.8
2001
0.000
1993
0.982
4.83
1997
0.000
1993
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.973
9.73
1995
0.000
1993
1.337
10.6
1995
0.000
1994
0.001
0.011
1993
0.000
1994
FOR 2001 CALENDAR YEAR
113.77
0.312
34
0.00
0.00
226
0.00
0.00
0.00
0.002
0.016
2001
0.000
1993
0.000
0.000
1993
0.000
1993
0.012
0.12
1993
0.000
1994
FOR 2002 WATER YEAR
87.75
0.240
Aug 13
Jan 1
Jan 1
20
0.00
0.00
174
0.00
0.00
0.00
Jul 26
Oct 1
Oct 9
WATER YEARS 1993 - 2002
5.358
18.8
1999
0.028
1994
1610
Aug 27 1993
0.00 Oct 1 1992
0.00 Oct 1 1992
3880
0.00
0.00
0.00
201
GILA RIVER BASIN
09489000 SANTA CRUZ RIVER NEAR LAVEEN, AZ
LOCATION.--Lat 33° 13'56", long 112° 10'08", in NE1/4NE1/4 sec. 29, T.2 S., R.2 E., Pinal County, Hydrologic Unit 15050303, in Gila River Indian Reservation, on downstream
side of highway bridge, 3.4 mi upstream from mouth, 4.3 mi south of Komatke, and 9 mi south of Laveen.
DRAINAGE AREA.--8,581 mi2.
PERIOD OF RECORD.--Jan. 1940 to Sept. 1946, Dec. 1947 to current year.
REVISED RECORDS.--WSP 1283: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,020.86 ft above sea level.
REMARKS.--No estimated daily discharge. Records good. Many diversions above station, mostly by pumping from ground water, for municipal uses and for irrigation of about
240,000 acres, not including San Carlos Project. Much of the low flow passing this station is drainage and wasteway return from irrigated lands upstream and pumpage
from ground water.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 33,000 ft3/s Oct. 4, 1983, gage height, 19.74 ft, from flow-routing computation; no flow for many days.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 380 ft3/s and (or) maximum (*):
Date
Sept. 12 .........
Time
Discharge (ft3/s)
0315
*187
Gage height (ft)
*10.46
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
15
2.8
0.98
0.00
0.00
0.00
0.00
0.00
3.5
1.2
0.72
0.47
0.33
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.1
12
7.0
27
11
12
13
14
15
0.56
0.34
0.18
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.26
0.21
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
51
83
12
9.9
2.8
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.2
0.70
0.50
0.38
0.26
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.20
0.07
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
19.86
0.641
15
0.00
39
0.00
0.00
0.000
0.00
0.00
0.00
0.00
7.79
0.251
3.5
0.00
15
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
211.11
7.037
83
0.00
419
0.00
1.224
10.8
1967
0.000
1961
13.14
193
1990
0.000
1963
51.00
597
1955
0.000
1973
28.53
570
1946
0.000
1968
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
38.13
1812
1984
0.000
1959
7.294
200
1958
0.000
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
22.20
435
1968
0.000
1959
34.39
1182
1993
0.000
1959
13.81
186
1983
0.000
1961
FOR 2001 CALENDAR YEAR
549.95
1.507
95
Jan 28
0.00 Jan 1
0.00 Jan 1
1090
0.000
0.71
0.00
0.00
12.19
229
1941
0.000
1964
3.606
75.6
1941
0.000
1963
1.656
13.8
1941
0.000
1961
FOR 2002 WATER YEAR
238.76
0.654
83
Sep 12
0.00 Oct 1
0.00 Oct 1
474
0.000
0.00
0.00
0.00
WATER YEARS 1940 - 2002
19.33
170
1984
0.47
1977
18000
Oct 4 1983
0.00 Jul 17 1940
0.00 Jul 17 1940
14010
0.002
8.0
0.00
0.00
202
GILA RIVER BASIN
09489500 BLACK RIVER BELOW PUMPING PLANT, NEAR POINT OF PINES, AZ
LOCATION.--Lat 33° 28'36", long 109° 45'48", in W sec. 32, T.2 N., R.25 E. (unsurveyed), Graham County, Hydrologic Unit 15060101, in San Carlos Indian Reservation, on left
bank 0.9 mi downstream from Phelps Dodge Corp. pumping plant, 1.3 mi downstream from Freezeout Creek, 8 mi northwest of Point of Pines, and 63 mi upstream from
confluence with White River.
DRAINAGE AREA.--560 mi2.
PERIOD OF RECORD.--June 1953 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,725 ft above sea level, from topographic map.
REMARKS.--Records good except for estimated daily discharges, which are poor. Water is diverted at pumping plant 0.9 mi upstream and pumped into headwaters of Willow
Creek (tributary of Eagle Creek) for mining, metallurgical treatment of ores, and domestic supply in vicinity of Morenci. (See sta 09445000.)
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 17,900 ft3/s Oct. 19, 1972, gage height, 18.0 ft, from floodmarks, from rating curve extended above 5,000 ft3/s;
minimum daily, 2.6 ft3/s July 5, 1974.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 500 ft3/s and (or) maximum (*):
Date
Time
Discharge (ft3/s)
Gage height (ft)
Aug. 5 ...........
2100
571
4.11
Aug. 9 ...........
1635
1500
5.36
Sept. 11 ........
1600
919
4.62
Minimum daily discharge, 19 ft3/s June 19, 22, and 25.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
25
26
26
27
28
31
32
31
31
32
34
33
32
32
35
39
37
41
33
40
34
37
37
34
33
37
37
36
33
31
29
29
29
29
29
21
21
21
21
21
21
21
21
21
21
21
22
23
21
24
54
49
55
51
111
33
32
30
29
29
6
7
8
9
10
27
29
37
35
34
33
33
33
33
32
35
32
32
33
31
43
39
32
34
34
33
35
32
32
37
33
36
39
40
39
33
39
38
32
30
20
20
21
25
25
21
21
20
20
20
24
21
23
28
28
88
81
71
181
110
29
29
37
45
47
11
12
13
14
15
32
30
29
30
29
32
32
32
32
32
36
36
36
32
40
35
35
34
37
36
34
32
32
33
35
36
37
38
38
39
28
27
26
26
26
24
24
24
24
24
23
23
21
23
23
31
31
27
27
28
80
56
41
35
33
362
434
224
144
109
16
17
18
19
20
29
29
29
29
29
32
32
32
32
32
34
38
45
44
39
31
32
33
35
31
34
35
36
37
35
38
35
34
34
34
25
25
25
25
24
25
24
24
25
24
20
22
22
19
21
29
39
42
53
42
30
29
31
30
39
90
76
60
49
44
21
22
23
24
25
29
29
30
30
30
31
31
33
37
34
41
43
43
43
45
32
41
45
40
33
35
36
36
37
38
34
34
34
35
35
23
23
23
23
23
24
24
24
24
24
22
19
21
22
19
40
37
70
62
56
57
46
38
32
29
41
35
33
30
29
26
27
28
29
30
31
30
30
30
30
31
31
32
32
34
31
31
---
46
46
46
45
40
39
39
45
33
33
33
36
38
38
38
-------
34
34
34
34
32
30
24
25
25
24
22
---
24
24
24
23
23
22
21
22
20
22
23
---
49
100
203
195
108
72
26
25
26
31
33
32
28
27
26
26
26
---
919
29.65
37
25
1820
0.05
0.06
967
32.23
37
31
1920
0.06
0.06
1186
38.26
46
31
2350
0.07
0.08
1121
36.16
45
31
2220
0.06
0.07
983
35.11
38
32
1950
0.06
0.07
1094
35.29
40
30
2170
0.06
0.07
809
26.97
39
22
1600
0.05
0.05
718
23.16
25
20
1420
0.04
0.05
635
21.17
23
19
1260
0.04
0.04
1576
50.84
203
21
3130
0.09
0.10
1630
52.58
181
25
3230
0.09
0.11
2233
74.43
434
26
4430
0.13
0.15
60.95
244
1973
9.84
1974
43.49
122
1965
14.1
1989
105.9
509
1999
18.2
1962
86.51
385
1963
9.36
1956
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1954 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
108.3
1211
1973
13.6
1954
92.12
505
1995
22.7
1954
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
117.6
915
1979
20.0
1954
141.6
1571
1993
23.0
1996
230.5
1036
1980
34.7
1974
FOR 2001 CALENDAR YEAR
(*) 146.7 (**) 106210
50871
139.4
913
23
25
100900
0.25
3.38
439
45
29
539.3
1863
1985
30.1
1996
703.5
2253
1979
27.0
2002
279.7
1933
1973
22.5
1996
FOR 2002 WATER YEAR
(*) 44.7 (**) 32350
13871
38.00
Apr 10
Jul 5
Jun 29
434
Sep 12
19
Jun 19
20
Jun 19
27510
0.068
0.92
46
32
22
(*) Mean, adjusted for Willow Creek Diversion from Black River near Morenci.
(**) AC-FT, adjusted for Willow Creek Diversion from Black River near Morenci.
WATER YEARS 1954 - 2002
208.7
617
38.0
11000
2.6
5.4
151200
0.37
5.06
557
57
24
1993
1996
Oct 20 1972
Jul 5 1974
Sep 16 1956
203
GILA RIVER BASIN
09490500 BLACK RIVER NEAR FORT APACHE, AZ
LOCATION.--Lat 33° 42'46", long 110° 12'40", in NW1/4 sec. 12, T.4 N., R.20 E. (unsurveyed), Gila County, Hydrologic Unit 15060101, on downstream side of first pier from right
bank on highway bridge, 5 mi upstream from confluence with White River and 14 mi west of Fort Apache.
DRAINAGE AREA.--1,232 mi2.
PERIOD OF RECORD.--Oct. 1912 to Dec. 1915, Sept. 1916, Oct. 1917 to Jan. 1918, Apr. 1918, Oct. 1957 to current year. Monthly discharge only for some periods, published
in WSP 1313.
REVISED RECORDS.--WSP 1313: 1914–15, drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 4,345 ft above sea level, from river-profile map. Nov. 1912 to July 1918, nonrecording gages or water-stage recorders at
several sites within 1 mi of present site at various datums.
REMARKS.--No estimated daily discharges. Records good. One transbasin diversion for industrial and municipal use (see record of Willow Creek diversion from Black River,
near Morenci). Negligible storage in several small recreational lakes.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 54,700 ft3/s, Jan. 8, 1993, gage height, 28.10 ft, from rating curve extended above 8,500 ft3/s on basis of
slope-area measurements at gage heights 22.33 ft and 24.80 ft; minimum daily, 11 ft3/s July 6, 1974.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,000 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
1015
2,530
Gage height (ft)
*6.36
Minimum daily discharge, 20 ft3/s, June 22, 25, and 28.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
36
36
36
38
39
41
42
43
43
44
46
48
49
52
52
57
57
55
53
55
52
44
51
58
57
56
55
54
52
48
52
48
47
45
44
38
34
32
31
31
24
23
22
22
22
21
23
23
22
23
105
82
71
170
137
46
43
42
38
37
6
7
8
9
10
39
42
43
48
64
46
47
47
48
47
51
50
48
45
41
47
47
53
53
52
55
52
50
51
51
48
48
55
58
60
44
46
52
63
62
30
30
29
27
27
22
22
22
22
22
23
22
24
24
24
136
183
157
132
185
35
34
35
39
94
11
12
13
14
15
57
52
48
45
44
47
45
45
45
45
43
48
55
44
37
53
53
53
53
50
48
49
49
51
52
59
57
55
56
57
54
50
47
44
42
28
31
29
29
29
22
21
21
23
23
64
46
36
44
55
197
144
104
79
64
787
643
454
274
196
16
17
18
19
20
44
42
42
42
41
46
47
47
47
47
46
50
47
45
52
49
52
50
50
49
53
54
53
54
55
58
57
56
52
53
41
40
39
38
37
28
27
27
27
27
22
23
22
21
22
40
38
78
55
51
54
53
47
44
42
153
127
111
98
83
21
22
23
24
25
41
41
41
41
41
47
47
47
48
49
57
59
53
49
57
42
38
42
52
44
57
54
53
54
55
52
52
51
51
52
37
36
36
35
34
26
26
26
26
26
22
20
21
21
20
61
59
55
48
95
41
50
68
55
46
74
68
61
55
50
26
27
28
29
30
31
41
41
41
41
41
41
55
52
48
46
42
---
49
37
44
53
63
59
40
45
59
65
57
58
55
56
57
-------
52
53
52
52
54
54
34
33
33
37
38
---
26
26
26
25
25
25
21
22
20
21
23
---
83
297
755
312
237
149
39
34
30
32
33
37
47
44
43
41
39
---
1329
42.87
64
36
2640
0.03
0.04
1390
46.33
55
41
2760
0.04
0.04
1529
49.32
63
37
3030
0.04
0.05
1583
51.06
65
38
3140
0.04
0.05
1480
52.86
58
44
2940
0.04
0.04
1669
53.84
60
48
3310
0.04
0.05
1288
42.93
63
33
2550
0.03
0.04
874
28.19
38
25
1730
0.02
0.03
654
21.80
24
20
1300
0.02
0.02
2887
93.13
755
21
5730
0.08
0.09
2651
85.52
197
30
5260
0.07
0.08
3891
129.7
787
34
7720
0.11
0.12
105.5
448
1973
16.9
1974
86.28
763
1915
23.3
1994
183.7
659
1959
34.9
1975
141.7
650
1988
30.5
1960
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1915 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
209.7
2725
1984
30.6
1974
157.6
769
1995
36.7
1976
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
353.2
2449
1979
38.4
1977
407.9
4904
1993
36.8
1976
580.2
3145
1980
52.9
2002
FOR 2001 CALENDAR YEAR
76001
208.2
1240
34
35
150700
0.17
2.29
716
76
41
1029
3864
1978
50.2
1999
1114
4423
1915
42.9
2002
477.0
3109
1973
28.2
2002
FOR 2002 WATER YEAR
21225
58.15
Apr 7
Jun 20
Jun 30
787
Sep 11
20
Jun 22
21
Jun 22
42100
0.047
0.64
66
47
24
WATER YEARS 1915 - 2002
405.9
1200
52.6
32600
11
12
294100
0.33
4.48
1110
99
38
Jan
Jul
Jul
1915
2000
8 1993
6 1974
1 1974
204
GILA RIVER BASIN
09492400 EAST FORK WHITE RIVER NEAR FORT APACHE, AZ
LOCATION.--Lat 33° 49'20", long 109° 48'50", in SE1/4 sec. 16, T.5 N., R.24 E. (unsurveyed), Apache County, Hydrologic Unit 15060102, in Fort Apache Indian Reservation, on
left bank 600 ft downstream from highway bridge, 0.1 mi upstream from Rock Creek, and 10 mi east of Fort Apache.
DRAINAGE AREA.--38.8 mi2.
PERIOD OF RECORD.--Aug. 1957 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 6,050 ft above sea level. Prior to Dec. 29, 1960, at site 600 ft upstream at datum 12.78 ft higher. Dec. 29, 1960, to
Sept. 28,1962, at site 600 ft upstream at datum 12.92 ft higher.
REMARKS.--Records good except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,700 ft3/s Oct. 1, 1983, gage height, 5.40 ft, from rating curve extended above 1,000 ft3/s; minimum daily,
3.5 ft3/s June 24, 25, 29, July 7, 2002.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 100 ft3/s and (or) maximum (*):
Date
Time
Sept. 11 ........
Discharge (ft3/s) Gage height (ft)
1430
*142
1.89
Minimum daily discharge, 3.5 ft3/s June 24, 25, 29 and July 7.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
7.2
7.4
7.5
7.9
7.5
7.1
7.2
7.1
7.0
7.4
7.2
7.0
6.9
7.2
7.0
7.3
7.1
7.2
7.0
7.3
e6.0
e7.0
e7.5
e7.5
e7.5
7.4
7.6
e5.0
e6.0
e7.0
6
7
8
9
10
8.1
12
18
12
9.4
8.9
7.9
7.2
7.2
7.0
7.0
8.5
7.6
7.7
8.5
7.6
6.8
7.0
7.2
7.5
e7.5
e7.5
e7.5
e7.5
e7.5
11
12
13
14
15
8.7
8.4
8.3
8.1
8.1
7.1
7.0
7.0
7.0
7.1
8.6
7.4
e6.0
e7.0
e7.5
7.0
7.1
6.9
7.8
8.1
16
17
18
19
20
8.0
7.9
7.8
7.6
7.6
7.1
7.1
7.0
7.0
6.8
e7.5
e7.5
e7.5
e7.5
e7.5
21
22
23
24
25
7.5
7.7
8.0
7.9
7.5
6.6
7.2
7.7
6.6
7.7
26
27
28
29
30
31
7.5
7.1
7.2
7.0
7.0
7.0
258.9
8.352
18
7.0
514
0.22
0.25
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
APR
MAY
JUN
JUL
AUG
SEP
11
11
11
11
11
7.5
7.5
7.3
6.9
6.7
4.5
4.4
4.3
4.4
4.5
3.8
3.8
3.8
3.9
3.9
9.4
9.5
12
14
18
9.4
9.0
8.6
8.3
8.5
e7.5
8.3
8.3
7.4
7.9
11
12
12
14
15
6.7
6.5
6.4
6.4
6.3
4.6
4.6
4.5
4.3
4.2
3.6
3.5
3.6
5.0
6.1
25
31
22
32
23
8.6
9.4
12
12
13
e7.0
e7.0
e7.0
7.4
7.4
7.9
8.0
8.6
9.4
7.6
14
14
13
12
12
6.1
5.9
5.8
5.7
5.7
4.2
4.1
4.0
3.9
3.9
7.8
5.9
5.1
4.8
5.2
18
15
13
13
13
77
59
35
26
20
7.1
7.4
7.4
e7.0
e6.0
7.3
7.7
8.0
7.3
7.3
7.7
8.6
7.6
7.4
7.1
12
12
11
11
10
5.6
5.5
5.4
5.5
5.4
3.9
3.8
3.8
3.7
3.7
5.1
9.7
9.2
6.4
7.0
11
12
12
10
17
17
16
15
17
14
e7.5
e7.0
e7.0
e7.0
e7.0
e7.0
e7.5
e7.5
e7.5
e7.5
7.7
7.3
8.0
8.2
7.8
7.6
8.9
9.0
9.1
8.2
9.5
9.4
9.0
8.5
8.5
5.3
5.3
5.2
5.1
5.0
3.6
3.7
3.6
3.5
3.5
6.1
6.7
13
14
16
21
15
13
12
10
13
11
11
10
9.8
6.4
4.9
e6.0
e7.0
e7.0
---
e7.0
e7.0
e7.0
e7.0
7.4
7.2
e7.5
8.0
7.3
7.2
7.1
e7.0
7.7
7.8
7.9
-------
8.1
8.7
9.0
11
9.5
10
8.6
8.6
8.4
7.8
7.7
---
4.9
4.9
4.8
4.7
4.6
4.5
3.8
3.8
3.6
3.5
3.8
---
10
9.8
e25
18
13
11
9.4
8.8
8.9
11
12
9.2
9.6
9.5
9.5
9.1
8.7
---
211.3
7.043
8.9
4.9
419
0.18
0.20
226.7
7.313
8.6
6.0
450
0.19
0.22
224.9
7.255
8.1
6.0
446
0.19
0.22
208.8
7.457
8.2
6.0
414
0.19
0.20
251.4
8.110
11
5.0
499
0.21
0.24
326.0
10.87
15
7.7
647
0.28
0.31
179.1
5.777
7.5
4.5
355
0.15
0.17
119.7
3.990
4.6
3.5
237
0.10
0.11
249.8
8.058
25
3.5
495
0.21
0.24
460.2
14.85
32
8.8
913
0.38
0.44
496.0
16.53
77
8.3
984
0.43
0.48
44.34
172
1973
3.99
2002
18.17
45.7
1973
7.17
2000
28.18
90.5
1992
10.9
1960
23.10
65.9
1983
6.91
1989
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1957 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
21.72
128
1984
8.35
2002
16.57
43.6
1987
7.04
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
16.22
57.1
1979
7.31
2002
16.22
84.8
1993
7.09
1994
20.42
66.2
1980
7.45
2000
FOR 2001 CALENDAR YEAR
10179.0
27.89
164
4.9
6.5
20190
0.72
9.76
86
13
7.1
38.82
103
1978
8.11
2002
79.50
192
1993
10.9
2002
99.84
284
1973
5.78
2002
FOR 2002 WATER YEAR
3212.8
8.802
May 2
Nov 27
Nov 26
77
3.5
3.6
6370
0.23
3.08
13
7.5
4.5
Sep 11
Jun 24
Jun 19
WATER YEARS 1957 - 2002
35.26
75.1
8.80
1120
3.5
3.6
25540
0.91
12.35
87
18
8.5
1993
2002
Oct 2 1983
Jun 24 2002
Jun 19 2002
205
GILA RIVER BASIN
09494000 WHITE RIVER NEAR FORT APACHE, AZ
LOCATION.--Lat 33° 44'11", long 110° 09'58", in SE1/4 sec. 32, T.4 N., R.21 E. (unsurveyed), Gila County, Hydrologic Unit 15060102, in Fort Apache Indian Reservation, on right
bank 2,200 ft downstream from highway bridge, 4.5 mi upstream from confluence with Black River, and 11 mi west of Fort Apache.
DRAINAGE AREA.--632 mi2.
PERIOD OF RECORD.--Oct. 1917 to Sept. 1918 (published as "at Wanslee's Ranch"), Oct. 1957 to current year. Monthly discharge only for some periods, published in WSP
1313.
REVISED RECORDS.--WRD AZ 1971: 1967(M).
GAGE.--Water-stage recorder. Datum of gage is 4,365.99 ft above sea level. Oct. 12, 1917, to Aug. 31, 1918, nonrecording gage at site 2,100 ft upstream at different datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Small diversions above station for irrigation of about 1,460 acres. Negligible storage above
station in several small recreational lakes.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14,600 ft3/s Dec. 18, 1978, gage height, 15.71 ft, from rating curve extended above 7,800 ft3/s on basis of
slope-area measurement of peak flow; no flow July 18–21, 1963.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,000 ft3/s and (or) maximum (*):
Time
Discharge (ft3/s)
July 14 ..........
1945e
1,190
Sept. 10.........
2115e
1,730e
Sept. 11.........
0500e
*3,620
Date
Gage height (ft)
4.50
5.40e
*7.78
Minimum daily discharge, 2.5 ft3/s estimated, June 25, 29, July 7.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
JUN
JUL
AUG
SEP
1
2
3
4
5
18
19
20
20
22
23
24
26
26
27
34
34
30
31
35
36
34
33
33
33
25
32
34
33
32
36
34
26
e20
26
39
40
40
41
42
22
23
24
23
22
e6.0
e6.0
e6.0
e6.0
e6.0
e3.0
e3.0
e3.0
e3.0
e3.0
29
24
45
51
105
22
18
16
15
14
6
7
8
9
10
21
32
37
58
44
30
31
29
26
26
33
29
34
32
27
32
32
33
33
32
33
31
33
34
32
35
36
42
41
36
42
54
60
55
60
22
16
15
13
12
e6.0
e6.0
e5.5
e5.5
e5.0
e3.0
e2.5
e3.0
e5.0
e7.0
61
95
90
94
85
12
11
12
21
e406
11
12
13
14
15
36
33
30
29
28
26
25
25
26
26
29
36
35
29
38
33
33
31
30
28
29
29
33
33
32
38
40
36
37
41
58
54
51
49
46
e12
14
14
e12
12
e5.0
e5.0
e4.5
e4.5
e4.5
e9.0
e9.0
e8.0
e80
79
60
46
35
31
27
e1180
418
e180
e120
e85
16
17
18
19
20
26
25
25
24
23
26
27
27
26
26
37
37
37
37
36
32
34
33
31
27
31
31
33
33
32
37
36
35
39
33
44
46
44
39
37
e11
e10
e9.0
e8.0
e7.5
e4.0
e4.0
e4.0
e4.0
e3.5
39
16
73
42
22
29
26
29
36
33
e60
e50
e45
e45
e45
21
22
23
24
25
23
23
23
23
22
26
26
26
31
29
35
34
33
33
31
28
34
35
33
29
31
33
31
34
36
33
33
36
37
36
35
34
32
29
29
e7.5
e7.0
e7.0
e7.0
e7.0
e3.5
e3.0
e3.0
e3.0
e2.5
29
28
22
52
41
79
75
49
37
31
e45
e40
e40
e40
e40
26
27
28
29
30
31
23
25
25
25
25
24
31
28
17
17
24
---
31
32
32
33
33
33
32
33
33
31
31
31
34
32
33
-------
33
33
34
39
43
40
29
29
29
29
24
---
e7.0
e7.0
e7.0
e7.0
e6.5
e6.5
e3.0
e3.0
e3.0
e2.5
e3.0
---
108
82
183
90
50
36
26
21
18
17
18
27
37
36
35
36
34
---
831
26.81
58
18
1650
0.04
0.05
783
26.10
31
17
1550
0.04
0.05
1030
33.23
38
27
2040
0.05
0.06
993
32.03
36
27
1970
0.05
0.06
899
32.11
36
25
1780
0.05
0.05
1101
35.52
43
20
2180
0.06
0.06
1240
41.33
60
24
2460
0.07
0.07
378.0
12.19
24
6.5
750
0.02
0.02
130.5
4.350
6.0
2.5
259
0.01
0.01
1133.5
36.56
183
2.5
2250
0.06
0.07
1429
46.10
105
17
2830
0.07
0.08
3158
105.3
1180
11
6260
0.17
0.19
149.3
602
1973
4.35
2002
69.27
187
1973
3.90
1963
118.7
388
1967
26.5
1962
100.0
293
1988
19.0
1989
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
MAY
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1957 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
101.9
774
1984
26.8
2002
84.34
218
1987
26.1
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
114.5
715
1979
31.7
2000
125.5
1125
1993
32.0
1964
170.3
787
1980
32.1
2002
FOR 2001 CALENDAR YEAR
54204
148.5
742
17
20
107500
0.23
3.19
517
58
25
356.3
1159
1985
35.5
2002
570.7
1448
1979
41.3
2002
436.4
2073
1973
12.2
2002
FOR 2002 WATER YEAR
13106.0
35.91
Apr 21
Nov 28
Sep 28
1180
Sep 11
2.5
Jun 25
2.9
Jun 23
26000
0.057
0.77
49
31
6.0
WATER YEARS 1957 - 2002
199.7
487
32.5
7180
0.00
0.46
144700
0.32
4.29
525
81
32
1993
2000
Dec 18 1978
Jul 18 1963
Jul 16 1963
206
GILA RIVER BASIN
09495000 FORESTDALE CREEK DIVERSION FROM SHOW LOW CREEK, NEAR SHOW LOW, AZ
LOCATION.--Lat 34° 10'40", long 110° 00'56", in SE1/4NW1/4 sec. 16, T.9 N., R.22 E., Navajo County, Hydrologic Unit 15020005, in Sitgreaves National Forest, on right bank
170 ft downstream from terminal structure of Show Low Creek diversion works, 4,350 ft west of pumping plant on Show Low Lake, and 5 mi south of Show Low.
PERIOD OF RECORD.--May 1953 to current year.
GAGE.--Water-stage recorders and V-notch sharp-crested weir. Datum of gage is 6,621.57 ft above sea level (Bureau of Reclamation benchmark).
REMARKS.--No estimated daily discharges. Records excellent. Entire flow consists of water pumped from Show Low Lake in Little Colorado River basin, into Forestdale Creek
in the Gila River basin.
EXTREMES FOR PERIOD OF RECORD.--No daily flow for the water year.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
CAL YR 2001
WTR YR 2002
TOTAL 1406.64
TOTAL
0.00
MEAN 3.854
MEAN 0.000
MAX 14
MAX 0.00
MIN 0.00
MIN 0.00
AC-FT 2790
AC-FT
0.00
207
GILA RIVER BASIN
09496500 CARRIZO CREEK NEAR SHOW LOW, AZ
LOCATION.--Lat 33° 59'09", long 110° 16'49", in sec. 24, T.7 N., R.19 E. (unsurveyed), Gila County, Hydrologic Unit 15060104, in Fort Apache Indian Reservation, on right bank
500 ft upstream from bridge on U.S. Highway 60, 1 mi downstream from Corduroy Creek, 23 mi southwest of Show Low, and 24 mi upstream from mouth.
DRAINAGE AREA.--439 mi2.
PERIOD OF RECORD.--June 1951 to June 1961, June 1967 to June 1976, Oct. 1975 to June 1976 (monthly discharges only), Apr. 1977 to current year.
REVISED RECORDS.--WRD Ariz. 1968: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 4,749.52 ft above sea level. Prior to June 1976 at site on bridge pier 400 ft downstream at same datum.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Diversions for irrigation above station of less than 300 acres. Records include trans basin
diversion from Show Low Creek into headwaters of Carrizo Creek. (See sta 09495000.)
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 20,500 ft3/s Jan. 18, 1952, gage height, 12.08 ft, at site then in use, from rating curve extended above
2,000 ft3/s on basis of slope-area measurement of peak flow; maximum gage height, 15.1 ft Dec. 18, 1978, from high-water mark; minimum daily discharge, no flow,
estimated, June 17, 2002.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1951, about 23,000 ft3/s Dec. 30, 1965, gage height, 13.0 ft, from floodmark at previous
site, from rating curve extended above 2,000 ft3/s on basis of slope-area measurement at gage height 12.08 ft.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,000 ft3/s and (or) maximum (*):
Date
July 16 ..........
July 25 ..........
July 26 ..........
Aug. 4............
Time
Discharge (ft3/s) Gage height (ft)
1920
1730
1615
1900
1,480
2,600
2,710
5,340
5.51
6.87
6.99
9.22
Date
Time
Aug. 5............
Aug. 8............
Sept. 9...........
Sept. 10.........
Discharge (ft3/s) Gage height (ft)
2220
2330
1745
1815
*11,000
1,270
2,950
5,140
*12.50
5.20
7.23
9.07
Minimum daily discharge, no flow, estimated, June 17.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
JUN
JUL
1
2
3
4
5
1.8
2.3
2.5
2.1
1.9
2.6
2.8
2.8
2.8
3.2
4.5
4.5
4.5
5.2
6.1
6.0
5.5
5.4
5.3
5.2
5.9
6.0
5.9
5.8
5.6
4.7
4.7
4.6
4.7
4.7
4.6
4.4
4.4
4.3
4.3
3.6
3.0
2.8
2.8
2.7
0.68
0.53
0.56
0.59
0.64
0.09
0.16
0.28
0.41
0.51
22
102
42
543
818
5.6
5.7
6.3
5.2
4.8
6
7
8
9
10
1.9
3.6
6.3
3.1
2.8
3.7
3.4
3.3
3.3
3.4
5.2
4.9
4.8
4.8
4.9
5.2
5.1
5.2
5.2
5.4
5.3
5.3
5.3
5.2
5.0
4.8
4.8
6.2
5.5
5.1
4.7
7.6
6.0
5.3
4.9
2.6
2.4
2.9
2.2
2.0
0.88
0.74
0.26
0.17
0.17
0.62
0.15
0.40
0.60
0.87
418
54
68
98
16
5.2
4.9
107
305
553
11
12
13
14
15
2.3
2.1
2.2
2.2
2.2
3.5
3.7
3.7
3.8
3.8
5.7
6.1
5.5
5.5
6.0
5.4
5.2
5.2
5.2
5.2
5.0
5.1
5.1
5.0
5.0
4.9
4.9
4.8
4.7
4.7
4.8
4.7
4.4
4.2
4.1
1.7
1.6
2.0
1.4
1.3
0.78
0.41
0.38
0.24
0.09
1.6
0.75
0.85
0.81
1.3
16
17
18
19
20
2.2
2.2
2.2
2.2
2.2
3.9
4.0
4.0
4.1
4.0
5.9
5.7
5.7
5.8
5.7
5.3
5.3
5.3
5.2
5.2
5.0
4.9
5.0
5.1
5.0
4.7
4.8
4.8
4.8
4.6
4.3
4.4
4.1
4.0
3.9
1.3
1.3
1.2
1.2
1.6
e0.03
e0.00
e0.40
0.04
e0.02
21
22
23
24
25
2.2
2.3
2.4
2.3
2.3
4.2
4.2
4.3
4.2
4.4
5.5
5.3
5.3
5.4
5.2
5.2
5.2
5.4
5.6
5.7
4.8
4.7
4.9
4.9
4.8
4.6
4.6
4.5
4.5
4.6
4.0
3.9
3.8
3.7
3.6
0.82
1.2
1.8
1.6
1.1
26
27
28
29
30
31
2.3
2.3
2.4
2.4
2.4
2.4
4.5
4.5
4.4
4.5
4.5
---
5.2
5.4
5.3
5.4
5.5
5.7
5.4
5.4
5.3
5.3
6.3
6.0
4.6
4.7
4.8
-------
4.6
4.5
4.5
5.1
5.3
4.8
3.5
3.4
3.4
3.5
3.0
---
76.0
2.452
6.3
1.8
151
0.01
0.01
113.5
3.783
4.5
2.6
225
0.01
0.01
166.2
5.361
6.1
4.5
330
0.01
0.01
166.8
5.381
6.3
5.1
331
0.01
0.01
143.7
5.132
6.0
4.6
285
0.01
0.01
149.1
4.810
6.2
4.5
296
0.01
0.01
129.2
4.307
7.6
3.0
256
0.01
0.01
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
MAY
AUG
SEP
10
7.2
5.9
5.1
42
175
42
18
13
9.6
154
47
79
27
14
78
33
9.6
20
59
7.7
6.8
8.0
8.1
5.9
0.31
0.24
0.06
0.07
0.05
5.4
2.8
14
53
208
54
11
7.2
5.9
5.3
5.4
5.3
5.2
4.6
4.7
1.5
1.2
0.94
0.92
0.84
0.71
0.13
0.14
0.08
0.13
0.06
---
241
40
37
23
8.5
5.1
4.9
4.5
4.5
15
16
6.6
4.2
3.9
4.0
4.0
3.9
---
54.23
1.749
3.6
0.71
108
0.00
0.00
8.88
0.296
0.88
0.00
18
0.00
0.00
968.20
31.23
241
0.09
1920
0.07
0.08
2585.7
83.41
818
4.5
5130
0.19
0.22
1342.0
44.73
553
3.9
2660
0.10
0.11
11.37
41.3
1973
0.30
2002
12.70
41.1
1973
1.35
1971
18.81
83.4
2002
2.96
1997
10.55
44.7
2002
0.91
1956
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
26.42
397
1973
1.63
1957
20.76
147
1960
2.53
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
66.46
762
1979
3.86
1957
88.04
1031
1993
5.38
2002
113.5
965
1980
5.13
2002
135.6
698
1978
4.81
2002
FOR 2001 CALENDAR YEAR
3936.23
10.78
101
Apr
0.84 Sep
0.89 Sep
7810
0.025
0.33
21
7.6
1.9
45.90
350
1973
4.31
2002
18.27
154
1973
1.75
2002
FOR 2002 WATER YEAR
5903.51
16.17
7
9
6
818
Aug 5
0.00 Jun 17
0.09 Jun 23
11710
0.037
0.50
13
4.7
0.70
WATER YEARS 1951 - 2002
48.22
201
5.22
10900
0.00
0.09
34930
0.11
1.49
69
10
2.6
1979
2000
Dec 18 1978
Jun 17 2002
Jun 23 2002
208
GILA RIVER BASIN
09497500 SALT RIVER NEAR CHRYSOTILE, AZ
LOCATION.--Lat 33° 47'53", long 110° 29'57", in sec. 25, T.5 N., R.17 E. (unsurveyed), Gila County, Hydrologic Unit 15060103, in San Carlos Indian Reservation, on left bank
1,200 ft upstream from bridge on U.S. Highway 60, 5.7 mi northeast of Chrysotile, 8 mi upstream from Cibecue Creek, and 33 mi downstream from confluence of Black and
White Rivers.
DRAINAGE AREA.--2,849 mi2.
PERIOD OF RECORD.--Sept. 1924 to current year (monthly discharge only July to Dec. 1954).
REVISED RECORDS.--WSP 859: 1926–27, 1929–30, 1934, 1936. WSP 899: 1927, 1932, 1937, 1938(M). WSP 1313: 1925–26(M), 1929–30(M), 1935–36(M), 1944(M).
WSP 1343: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 3,354.57 ft above sea level.
REMARKS.--Records good, except for estimated daily discharges, which are poor. Several diversions for irrigation above station of about 3,100 acres, one diversion into the
basin (see record of Forestdale Creek diversion from Show Low Creek, near Show Low), and one diversion out of the basin (see record of Willow Creek diversion from Black
River, near Morenci).
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 76,600 ft3/s Jan. 8, 1993, gage height, 18.33 ft, from rating curve extended above 52,000 ft3/s; minimum,
49 ft3/s July 6, 7, 1955.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood peak of 74,000 ft3/s occurred prior to 1924 and is believed to be the peak of the flood of Jan. 19, 1916, gage height, 18 ft,
from floodmarks, from rating curve extended above 52,000 ft3/s.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 3,500 ft3/s and (or) maximum (*):
Date
Aug. 5 ............
Aug. 6 ............
Sept. 11 .........
Time
Discharge (ft3/s)
0345
0530
0145
3,720
*6,810
5,010
Gage height (ft)
5.13
*6.64
5.83
Minimum daily discharge, 67 ft3/s June 24.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
116
116
116
116
119
131
132
132
135
136
136
147
147
150
157
162
161
161
159
156
156
143
146
154
158
157
158
155
145
137
158
155
150
149
149
125
124
122
119
116
78
76
75
77
78
71
72
71
74
72
240
288
221
282
909
134
133
128
126
119
6
7
8
9
10
123
129
145
159
170
139
141
143
140
138
156
151
146
148
143
158
147
148
157
155
156
156
150
151
152
143
150
161
163
163
151
161
169
175
182
116
116
110
108
103
75
76
74
73
72
71
72
72
77
88
1660
e500
e400
e450
e300
117
116
117
215
494
11
12
13
14
15
164
153
144
139
136
137
136
135
135
135
142
152
158
154
140
155
157
157
153
153
149
144
146
150
152
161
161
160
157
158
182
171
164
160
156
100
97
108
109
100
72
74
73
71
72
85
126
117
102
280
e350
e300
e250
195
167
3070
1210
885
e500
e400
16
17
18
19
20
135
135
131
130
128
137
138
138
138
138
144
150
151
151
149
149
151
155
152
150
151
152
152
152
156
161
160
159
159
155
150
149
149
144
138
100
98
95
95
94
72
72
71
72
71
252
292
199
274
176
200
211
161
149
159
e300
e280
e250
e220
e210
21
22
23
24
25
128
128
128
128
128
138
138
138
137
147
156
160
160
154
151
142
138
141
147
152
156
154
154
152
155
150
148
149
150
150
135
135
135
132
128
92
89
88
87
90
68
70
69
67
70
173
153
223
149
331
238
210
180
169
152
e200
e190
e180
e170
156
26
27
28
29
30
31
128
130
135
132
133
133
145
153
145
135
135
---
155
147
139
146
156
164
141
139
147
160
168
164
156
156
156
-------
151
149
149
155
161
160
128
125
126
126
129
---
88
88
87
89
86
82
71
69
71
70
68
---
396
537
916
645
425
321
136
125
116
116
123
136
147
139
137
135
135
---
4135
133.4
170
116
8200
0.05
0.05
4145
138.2
153
131
8220
0.05
0.05
4660
150.3
164
136
9240
0.05
0.06
4735
152.7
168
138
9390
0.05
0.06
4265
152.3
158
143
8460
0.05
0.06
4795
154.7
163
137
9510
0.05
0.06
4461
148.7
182
125
8850
0.05
0.06
3121
100.7
125
82
6190
0.04
0.04
2167
72.23
78
67
4300
0.03
0.03
6912
223.0
916
71
13710
0.08
0.09
9093
293.3
1660
116
18040
0.10
0.12
10613
353.8
3070
116
21050
0.12
0.14
307.0
1185
1941
72.2
2002
221.3
547
1941
91.0
1963
400.2
1249
1967
135
1962
335.1
1181
1946
68.5
1956
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1924 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
333.1
3777
1984
79.1
1957
279.3
1300
1979
112
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
484.8
3983
1966
113
1957
627.1
7939
1993
130
1954
874.5
6181
1980
145
1964
FOR 2001 CALENDAR YEAR
154246
422.6
2040
111
115
305900
0.15
2.01
1210
213
132
1454
6029
1978
155
2002
1677
4850
1979
149
2002
894.7
5070
1973
101
2002
FOR 2002 WATER YEAR
63102
172.9
Apr 7
Sep 30
Sep 28
3070
Sep 11
67
Jun 24
69
Jun 21
125200
0.061
0.82
217
147
77
WATER YEARS 1924 - 2002
655.8
2091
160
47400
55
56
475100
0.23
3.13
1540
256
130
1993
2000
Jan 8 1993
Sep 27 1956
Sep 25 1956
209
GILA RIVER BASIN
09497800 CIBECUE CREEK NEAR CHRYSOTILE, AZ
LOCATION.--Lat 33° 50'35", long 110° 33'25", in E1/2 sec. 8, T.5 N., R.17 E. (unsurveyed), Gila County, Hydrologic Unit 15060103, in Fort Apache Indian Reservation, on right
bank 0.5 mi upstream from mouth and 7 mi north of Chrysotile.
DRAINAGE AREA.--295 mi2.
PERIOD OF RECORD.--May 1959 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,200 ft above sea level, from topographic map.
REMARKS.-- Records good, except for estimated daily discharges, which are poor. Small diversions for irrigation in the vicinity of the village of Cibecue.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 22,200 ft3/s Sept. 2, 1977, gage height, 17.3 ft, on basis of slope-area measurement of peak flow; minimum
daily, 4.1 ft3/s Aug. 17–19, 1968.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,000 ft3/s and (or) maximum (*):
Date
Time
Discharge (ft3/s) Gage height (ft)
Date
Time
Discharge (ft3/s) Gage height (ft)
Oct. 8 .............
2050
2,430
5.64
July 18...........
0150
1,830
5.09
July 16...........
0520
1,300
4.50
Sept. 8...........
2330
1,010
4.13
July 16...........
1800
1,470
4.71
Sept. 10.........
1700
*13,500
*12.59
Minimum daily discharge, 7.0 ft3/s June 21–24.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
13
13
13
14
14
12
13
13
13
13
14
14
14
16
21
14
14
14
14
13
12
15
14
14
13
12
12
12
12
13
6
7
8
9
10
14
15
193
97
15
14
13
13
13
13
15
15
14
14
14
14
14
13
13
14
13
13
13
13
12
11
12
13
14
15
13
13
12
12
12
13
13
13
13
13
14
18
13
13
17
14
13
13
13
14
16
17
18
19
20
12
12
12
12
12
13
13
13
13
13
14
14
14
14
14
21
22
23
24
25
12
12
12
12
12
13
13
13
13
14
26
27
28
29
30
31
12
12
12
12
12
12
655
21.13
193
12
1300
0.07
0.08
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
APR
MAY
JUN
JUL
AUG
SEP
12
12
12
11
11
8.4
8.4
8.4
8.4
8.2
8.1
7.8
7.8
7.9
7.5
7.2
7.3
7.4
7.3
7.1
e12
e20
e18
e70
e185
e15
e15
e15
e12
e12
13
13
14
13
13
11
14
13
12
12
7.9
7.8
7.7
7.5
7.5
7.5
7.4
7.3
7.3
7.3
7.2
7.2
7.4
7.5
8.2
e80
e30
20
38
18
e12
e12
e100
e100
e875
13
13
13
13
13
12
12
12
12
12
11
10
10
10
9.9
7.5
7.5
7.5
7.5
7.5
7.3
7.3
7.3
7.3
7.3
16
13
13
12
51
17
17
16
16
18
e60
e15
e15
e12
e12
14
14
14
13
13
13
13
13
13
13
12
13
13
13
12
10
9.9
9.4
9.4
9.2
7.5
7.5
7.5
7.5
7.3
7.2
7.2
7.1
7.2
7.1
240
20
151
47
47
20
39
e18
e15
e15
e12
e12
e11
e11
e11
15
15
14
14
13
13
14
14
12
13
12
12
12
12
12
12
12
12
12
13
9.2
9.4
9.0
8.6
8.6
7.3
7.4
7.3
7.8
9.1
7.0
7.0
7.0
7.0
7.1
14
12
46
37
15
e65
e20
e18
e15
e15
e10
e10
e10
e10
9.9
15
14
13
14
14
---
13
15
14
14
14
13
14
15
14
13
15
13
12
12
12
-------
13
12
12
13
13
12
8.4
8.4
8.6
8.6
8.5
---
8.8
8.4
8.5
8.5
8.4
8.4
7.3
7.3
7.2
7.1
7.2
---
24
40
27
e30
e20
e15
e12
e12
e15
46
32
e20
9.8
9.6
9.7
9.5
9.7
---
396
13.20
15
12
785
0.04
0.05
450
14.52
21
13
893
0.05
0.06
422
13.61
15
12
837
0.05
0.05
358
12.79
15
12
710
0.04
0.05
386
12.45
14
12
766
0.04
0.05
306.1
10.20
14
8.4
607
0.03
0.04
244.9
7.900
9.1
7.3
486
0.03
0.03
219.4
7.313
8.1
7.0
435
0.02
0.03
963.8
31.09
240
7.1
1910
0.11
0.12
952
30.71
185
12
1890
0.10
0.12
1437.2
47.91
875
9.5
2850
0.16
0.18
14.86
39.7
1979
4.98
1961
25.81
78.7
1959
6.55
1963
37.72
106
1963
12.8
1962
31.35
93.1
1996
8.71
1959
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1959 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
33.82
277
1973
11.0
1978
28.10
186
1979
9.14
1978
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
52.54
368
1966
10.6
1978
61.85
870
1993
11.3
1964
81.27
703
1993
11.0
1964
FOR 2001 CALENDAR YEAR
7493.4
20.53
193
Oct 8
9.3
Jun 24
9.4
Jun 23
14860
0.070
0.94
36
15
11
102.4
477
1978
12.3
1971
55.19
274
1973
10.2
2002
24.18
131
1973
5.64
1972
FOR 2002 WATER YEAR
6790.4
18.60
875
Sep 10
7.0
Jun 21
7.1
Jun 18
13470
0.063
0.86
18
13
7.5
WATER YEARS 1959 - 2002
45.47
182
16.2
4930
4.1
4.6
32940
0.15
2.09
83
20
10
1993
1961
Jan 8 1993
Aug 17 1968
Jun 17 1961
210
GILA RIVER BASIN
09497980 CHERRY CREEK NEAR GLOBE, AZ
LOCATION.--Lat 33° 49'40", long 110° 51'20", in SW1/4 sec. 30, T.6 N., R.15 E. (unsurveyed), Gila County, Hydrologic Unit 15060103, in Tonto National Forest, on right bank
0.2 mi upstream from Devils Chasm, 13 mi upstream from mouth, and 30 mi north of Globe.
DRAINAGE AREA.--200 mi2.
PERIOD OF RECORD.--May 1965 to current year (monthly discharge only Feb. to Sept. 1979).
GAGE.--Water-stage recorder. Elevation of gage is 3,200 ft above sea level, from topographic map. Prior to Jan. 17, 1979, at site 125 ft downstream at datum 2.95 ft lower.
REMARKS.--Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,700 ft3/s Jan. 17, 1979, gage height, unknown, from slope-area measurement of peak flow; minimum daily,
2.4 ft3/s Sept. 17, 22, 25, and 29, 1978.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 750 ft3/s and (or) maximum (*):
Date
July 18 ..........
Time
Discharge (ft3/s)
0945
*24
Gage height (ft)
*2.54
Minimum daily discharge, 2.0 ft3/s July 2.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
3.8
4.0
4.0
4.2
4.1
4.1
4.2
4.2
4.2
4.4
4.5
4.5
4.5
5.2
5.3
4.8
4.8
4.8
4.8
4.8
4.8
4.9
4.8
4.8
4.8
4.8
4.5
4.5
4.6
4.8
4.3
4.3
4.2
4.2
4.1
3.5
3.6
3.6
3.5
3.4
2.4
2.4
2.4
2.5
2.6
2.1
2.0
2.2
2.3
2.3
2.6
2.7
3.9
3.8
3.2
2.7
3.1
2.9
2.7
2.7
6
7
8
9
10
4.1
4.4
4.7
4.5
4.2
4.4
4.2
4.2
4.2
4.2
4.6
4.6
4.6
4.6
4.7
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.6
4.8
6.2
4.9
4.6
4.6
5.0
4.4
4.2
4.1
3.3
3.2
3.2
3.1
3.1
2.5
2.5
2.4
2.3
2.3
2.2
2.2
2.1
2.3
2.8
4.9
3.1
2.9
2.8
2.7
2.7
2.7
3.2
3.2
3.2
11
12
13
14
15
4.1
4.0
4.0
4.0
4.0
4.2
4.2
4.2
4.2
4.2
5.1
5.3
4.9
4.8
4.9
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.6
4.5
4.5
4.5
4.5
4.0
3.9
3.8
3.9
3.9
3.0
3.0
3.0
3.0
2.9
2.4
2.4
2.3
2.3
2.3
2.6
2.6
3.0
2.6
2.8
2.7
2.7
2.6
2.6
2.5
3.6
3.1
2.9
2.8
2.8
16
17
18
19
20
3.9
4.0
3.9
3.9
4.0
4.2
4.2
4.3
4.2
4.3
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.5
4.6
4.6
4.5
4.5
4.1
4.0
3.9
3.8
3.8
2.9
2.9
2.8
2.8
2.8
2.2
2.2
2.2
2.2
2.2
3.1
3.1
10
5.5
3.7
2.6
2.6
2.6
2.6
2.7
2.8
2.7
2.7
2.7
2.7
21
22
23
24
25
3.9
4.1
4.1
4.1
4.0
4.3
4.3
4.2
4.2
4.6
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.7
4.5
4.8
4.8
4.8
4.5
4.5
4.4
4.4
4.5
3.8
3.7
3.7
3.6
3.6
2.8
2.8
2.9
2.8
2.8
2.1
2.1
2.1
2.2
2.2
3.1
2.9
2.8
2.8
3.3
2.6
2.6
2.6
2.5
2.6
2.7
2.7
2.6
2.6
2.6
26
27
28
29
30
31
4.0
4.1
4.1
4.0
4.1
4.1
4.5
4.5
4.5
4.5
4.5
---
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
5.0
5.1
4.6
4.5
4.8
-------
4.4
4.3
4.3
4.7
4.8
4.4
3.5
3.8
3.9
3.7
3.6
---
2.8
2.8
2.7
2.7
2.6
2.5
2.2
2.2
2.2
2.2
2.2
---
3.1
2.8
2.7
2.7
2.6
2.6
2.5
2.5
2.6
2.8
2.8
2.6
2.6
2.6
2.6
2.7
2.7
---
126.4
4.077
4.7
3.8
251
0.02
0.02
128.6
4.287
4.6
4.1
255
0.02
0.02
148.9
4.803
5.3
4.5
295
0.02
0.03
149.3
4.816
5.1
4.8
296
0.02
0.03
133.6
4.771
4.9
4.5
265
0.02
0.02
142.8
4.606
6.2
4.3
283
0.02
0.03
119.4
3.980
5.0
3.5
237
0.02
0.02
92.8
2.994
3.6
2.5
184
0.01
0.02
68.7
2.290
2.6
2.1
136
0.01
0.01
92.9
2.997
10
2.0
184
0.01
0.02
87.5
2.823
4.9
2.5
174
0.01
0.02
84.3
2.810
3.6
2.6
167
0.01
0.02
7.028
18.0
1973
2.29
2002
9.346
28.1
1999
2.99
2000
16.01
84.7
1988
2.82
2002
13.95
151
1970
2.81
2002
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1965 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
21.30
296
1973
4.08
2002
19.57
101
1973
4.29
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
58.42
537
1966
4.80
1978
70.79
652
1993
4.82
2002
85.71
568
1980
4.77
2002
FOR 2001 CALENDAR YEAR
88.77
423
1978
4.61
2002
28.83
195
1973
3.98
2002
11.46
65.7
1973
2.99
2002
FOR 2002 WATER YEAR
3764.8
10.31
1375.2
3.768
170
Mar 11
3.0
Jul 21
3.1
Jul 18
7470
0.052
0.70
19
4.9
3.8
10
Jul 18
2.0
Jul 2
2.2
Jun 17
2730
0.019
0.26
4.8
4.0
2.5
WATER YEARS 1965 - 2002
33.77
130
3.77
13000
2.0
2.2
24460
0.17
2.29
56
8.1
4.9
1973
2002
Jan 17 1979
Jul 2 2002
Jun 17 2002
211
GILA RIVER BASIN
09498400 PINAL CREEK AT INSPIRATION DAM, NEAR GLOBE, AZ
LOCATION.--Lat 33° 34'23", long 110° 54'02", in NE1/4NW1/4SE1/4 sec. 26, T.3 N., R.14 E., Gila County, Hydrologic Unit 15060103, in Tonto National Forest, on right bank 7 ft
upstream from Inspiration Dam, 3.8 mi upstream from mouth, and 14 mi northwest of Globe.
DRAINAGE AREA.--195 mi2, of which about 33 mi2 is partly or entirely noncontributing due to mining operations (1988).
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--July 1980 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 2,740 ft above sea level, from topographic map. Prior to Feb. 12, 1991, at datum 1.0 ft higher.
REMARKS.--No estimated daily discharge. Records fair. Since Nov. 20, 1999, base flows may be affected by discharges from a ground-water treatment plant, located about
5 mi upstream from the gage.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,700 ft3/s Jan. 11, 1993, gage height, 8.50 ft, on basis of slope-area measurement of peak flow; minimum
daily, 0.64 ft3/s July 1, 1999.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 200 ft3/s and (or) maximum (*):
Time
Discharge (ft3/s)
Oct. 6.............
2125
849
3.38
Sept. 10.........
1500
*2,520
*5.12
Date
Gage height (ft)
Minimum daily discharge, 1.4 ft3/s Aug. 15, Sept. 2.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
5.0
5.1
5.0
4.9
4.9
7.4
7.1
7.3
7.4
7.5
6.9
6.7
6.7
7.2
6.6
6.7
6.7
6.6
6.6
6.5
6.2
6.1
6.2
6.1
6.0
5.5
5.5
5.6
5.6
5.6
4.9
4.9
4.8
4.9
4.9
4.0
4.1
4.1
4.0
4.0
2.8
2.7
2.7
2.5
2.3
1.7
1.7
1.7
1.9
1.6
1.7
1.7
2.1
2.2
2.0
1.5
1.4
1.5
1.7
1.8
6
7
8
9
10
66
16
6.8
6.6
6.7
7.5
7.7
7.6
7.2
6.5
6.6
6.8
6.9
6.8
6.7
6.5
6.3
6.0
6.4
6.6
5.9
6.0
6.5
6.0
5.6
5.6
5.6
5.8
5.5
5.4
4.9
5.0
4.9
5.0
4.8
3.9
3.9
3.5
4.0
3.7
2.3
2.5
2.5
2.4
2.3
1.8
1.9
1.8
1.9
2.1
2.0
2.0
1.9
1.8
1.7
1.8
2.0
2.3
2.3
202
11
12
13
14
15
6.2
6.3
6.3
6.5
6.4
6.3
6.3
6.7
6.6
6.4
6.8
6.7
6.9
6.9
7.2
6.9
6.8
6.8
6.7
6.7
5.6
5.6
5.3
5.7
6.0
5.4
5.6
5.2
5.4
5.4
4.7
4.5
4.5
4.6
4.7
4.1
3.8
4.0
4.0
4.0
2.3
2.3
2.5
2.3
2.3
2.3
1.8
1.7
1.6
1.9
1.6
1.7
1.9
1.7
1.4
7.8
4.6
4.3
3.9
3.6
16
17
18
19
20
6.3
6.9
6.9
6.9
6.8
6.2
6.3
6.4
6.6
6.9
7.2
7.0
7.1
6.8
6.8
6.8
6.9
7.1
6.8
6.5
6.0
5.6
5.6
5.5
5.5
5.4
5.4
5.4
5.3
5.3
4.9
4.5
4.6
4.3
4.6
3.7
3.7
3.9
3.7
3.6
2.0
1.8
1.9
2.1
2.2
1.9
2.0
1.9
1.7
1.8
1.8
1.9
1.8
1.7
1.7
3.5
4.0
3.8
3.8
3.5
21
22
23
24
25
6.9
7.0
7.1
7.1
7.0
6.8
6.5
6.4
6.2
6.6
6.7
6.8
6.5
7.1
7.2
6.5
6.5
6.4
5.9
6.3
5.5
5.5
5.7
5.8
5.5
5.3
5.3
5.3
5.4
5.2
4.8
4.6
4.9
4.5
4.4
3.5
3.5
3.6
3.3
3.2
1.9
2.8
2.0
1.8
1.8
1.7
1.7
1.7
1.7
1.8
1.8
1.7
1.7
1.7
1.7
3.0
3.1
3.0
3.2
3.1
26
27
28
29
30
31
7.3
7.2
6.6
7.1
6.4
6.3
6.5
6.5
6.5
6.6
6.7
---
7.1
6.9
7.1
7.3
7.3
7.3
6.5
6.5
6.5
6.4
6.6
6.4
5.3
5.2
5.5
-------
5.3
5.0
4.9
5.0
5.0
5.0
4.2
4.2
4.3
4.2
4.1
---
3.7
3.8
3.0
3.2
3.0
3.1
1.8
1.7
1.6
1.8
1.8
---
1.9
1.8
1.8
1.7
1.8
1.7
2.4
1.5
1.8
2.2
1.7
1.6
2.7
3.1
3.1
3.0
3.2
---
268.5
8.661
66
4.9
533
0.04
0.05
203.2
6.773
7.7
6.2
403
0.03
0.04
214.6
6.923
7.3
6.5
426
0.04
0.04
203.4
6.561
7.1
5.9
403
0.03
0.04
161.0
5.750
6.5
5.2
319
0.03
0.03
166.2
5.361
5.8
4.9
330
0.03
0.03
139.1
4.637
5.0
4.1
276
0.02
0.03
114.6
3.697
4.1
3.0
227
0.02
0.02
65.7
2.190
2.8
1.6
130
0.01
0.01
56.0
1.806
2.3
1.6
111
0.01
0.01
56.1
1.810
2.4
1.4
111
0.01
0.01
291.6
9.720
202
1.4
578
0.05
0.06
6.306
16.2
1993
1.07
1999
7.769
17.1
1981
1.81
2002
8.546
28.4
1990
1.81
2002
7.484
16.4
1983
2.81
1989
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
9.636
38.8
1984
2.56
2000
7.807
13.0
2001
3.72
1999
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
10.87
58.4
1985
3.37
1999
30.44
440
1993
3.20
1999
28.58
406
1993
3.44
1999
FOR 2001 CALENDAR YEAR
15.68
67.3
1993
3.55
1999
9.787
30.1
1993
3.46
1999
8.036
19.6
1993
2.38
1999
FOR 2002 WATER YEAR
2188.7
5.996
1940.0
5.315
66
Oct 6
2.6
Jul 5
3.2
Jun 29
4340
0.031
0.42
7.7
6.3
3.9
202
Sep 10
1.4
Aug 15
1.6
Aug 30
3850
0.027
0.37
6.9
5.0
1.8
WATER YEARS 1980 - 2002
12.47
84.2
3.76
3300
Jan 11
0.64 Jul 1
0.72 Jun 25
9030
0.064
0.87
12
7.2
3.9
1993
1999
1993
1999
1999
212
GILA RIVER BASIN
09498400 PINAL CREEK AT INSPIRATION DAM, NEAR GLOBE, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Nov. 1979 to current year.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
20...
MAR
29...
JUN
11...
SEP
06...
Date
DEC
20...
MAR
29...
JUN
11...
SEP
06...
Date
DEC
20...
MAR
29...
JUN
11...
SEP
06...
Date
DEC
20...
MAR
29...
JUN
11...
SEP
06...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
1035
6.9
.78
691
10.4
99
7.7
2060
12.0
8.4
1100
1200
363
1130
4.9
.51
686
8.5
100
7.6
2140
19.5
17.7
1100
1200
371
1250
2.4
.57
686
7.1
97
7.6
2190
33.0
25.4
1200
1200
377
1210
2.0
.97
687
7.3
101
7.0
2250
30.5
25.8
1200
1200
389
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
Time
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
SODIUM
ADSORPTION
RATIO
(00931)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
TEMPERATURE
AIR
(DEG C)
(00020)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
TEMPERATURE
WATER
(DEG C)
(00010)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
368
64.0
64.0
4.50
.7
56.0
48
58
<1
56.0
1.1
1210
370
60.0
59.0
4.40
.8
61.0
46
56
<1
54.0
1.0
1200
3
401
63.0
66.0
4.20
.9
69.0
45
55
<1
55.0
1.0
1250
<1
387
63.0
64.0
5.30
.8
65.0
45
55
<1
59.0
1.0
1250
<1
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
<1cl
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
2.43
E1960cl
1780
1.1
.02
.03
<.020
1.1
<.02
8
E7k
E2k
<1
2.65
1950
1780
<.20
.01
.01
<.020
--
<.02
<5
E4k
E6k
<1
2.38
1750
1850
<.20
.02
.03
<.020
--
<.02
<5
E8k
35
<1
2.82
2070
1860
<.20
.01
.01
<.020
--
<.02
<5
100
--
<1
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
9.4
9.7
<1
<1
53
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
49
<.5
<.5
<1
<1
<1
<2
<2
<1
<1
<1
8.7
9.0
<1
<1
48
50
<.5
<.5
<1
<1
<1
<1
<1
11.0
11.0
<1
<1
53
52
<.5
<.5
<1
<1
<1
2
2
12.0
13.0
<1
<1
55
60
<.5
<.5
<1
<1
213
GILA RIVER BASIN
09498400 PINAL CREEK AT INSPIRATION DAM, NEAR GLOBE, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
20...
MAR
29...
JUN
11...
SEP
06...
Date
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
<2
<2
<2
<2
2
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
<2
100
<2
<2
240
314
<.10
<.1
5
4
<2
2
2
48
<2
<2
196
243
<.10
<.1
3
4
<1
2
<2
25
<2
<2
225
236
<.10
<.1
4
4
<1
<2
2
15
<2
<2
175
186
<.10
<.1
3
4
<1
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
DEC
20...
<4
<1
<1
1180
MAR
29...
<1
<1
<1
1130
JUN
11...
<1
<1
<1
1170
SEP
06...
1
<1
<1
1200
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
c -- See laboratory comment
k -- Counts outside acceptable range
l -- Sample lab preparation problem
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
<2
<2
23
10
1.0
.02
<2
<2
7
4
1.0
.01
<2
<2
7
5
4.0
.03
<2
<2
17
2
2.0
.01
214
GILA RIVER BASIN
09498400 PINAL CREEK AT INSPIRATION DAM, NEAR GLOBE, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Water-quality measurements in the following table were made as part of the ADEQ Fixed-Station Network Program. The following analyses are quality-assurance samples
processed during the 2002 sampling period and are defined in the introductory text section titled "Water-Quality Control Data".
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
Date
Time
Sample
type
JUN
11...
1255
2
5.8
1
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
Date
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
JUN
11...
<.5
<1
<.5
Remark codes used in this report:
< -- Less than
<1
TEMPERATURE
WATER
(DEG C)
(00010)
30.0
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
<2
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
.04
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
<2
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
<.03
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
<2
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
<.1
.20
.02
<.020
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
<1
<1
<2
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
<.02
ALUMINUM,
DISSOLVED
(UG/L
AS AL)
(01106)
<3
215
GILA RIVER BASIN
09498500 SALT RIVER NEAR ROOSEVELT, AZ
(NATIONAL STREAM-QUALITY ACCOUNTING NETWORK STATION)
LOCATION.--Lat 33° 37'10", long 110° 55'15", in SE1/4NE1/4 sec. 9, T.3 N., R.14 E. (unsurveyed), Gila County, Hydrologic Unit 15060103, in Tonto National Forest on left bank
100 ft downstream from bridge on State Highway 288, 0.3 mi downstream from Pinal Creek, 1 mi upstream from diversion dam for power canal, 14 mi east of village of
Roosevelt, and 17 mi upstream from Roosevelt Dam.
DRAINAGE AREA.--4,306 mi2.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--Jan. 1913 to current year (monthly discharge only Jan. to Sept. 1913, published in WSP 1313).
REVISED RECORDS.--WSP 1049: 1914, 1916, 1918–19, 1926. WSP 1343: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 2,177.14 ft above sea level. Prior to 1925, nonrecording gage at diversion dam about 1 mi downstream at different datum.
Nonrecording gage at present site and datum 1925 to Jan. 17, 1935. May 20, 1955, to July 30, 1959, supplementary water-stage recorder at diversion dam.
REMARKS.--Records good, except for estimated daily discharges, which are poor. Several small diversions for irrigation of about 4,000 acres above station and two trans
basin diversions above station, one into basin from Show Low Creek and one out of basin to Willow Creek. Records show inflow to Roosevelt Lake. Tonto Creek also
contributes to Roosevelt Lake; see records elsewhere in this report.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 143,000 ft3/s Jan. 8, 1993, gage height, 30.09 ft, from rating curve extended above 108,000 ft3/s; minimum
discharge, 59 ft3/s all or part of each day, July 1–4, 7–12, 1955.
EXTREMES OUTSIDE PERIOD OF RECORD.--A discharge of about 42 ft3/s was reported Aug. 5, 1911.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 4,000 ft3/s and (or) maximum (*):
Date
Aug. 6 ............
Sept. 11 .........
Time
Discharge (ft3/s)
1715
0305
6,300
*9,280
Gage height (ft)
12.34
*13.30
Minimum daily discharge, 65 ft3/s June 25.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
127
131
132
133
134
137
139
139
143
148
163
159
170
182
191
185
184
183
180
179
190
179
169
167
172
179
178
180
177
172
178
170
167
161
162
134
136
134
133
129
93
91
88
87
86
68
67
71
73
71
321
320
378
340
868
e160
e150
e150
144
142
6
7
8
9
10
141
166
157
353
229
155
161
164
165
167
194
189
181
176
177
177
178
172
172
181
177
174
177
170
170
164
165
184
191
193
164
172
183
190
197
123
119
119
116
111
87
84
81
78
76
70
67
66
68
73
1660
873
506
427
459
135
278
203
447
774
11
12
13
14
15
196
187
172
163
156
168
164
164
164
161
181
185
188
188
189
181
182
184
184
183
172
172
167
166
171
195
190
188
186
179
204
207
196
188
179
107
106
105
106
111
74
73
73
74
71
79
86
100
114
102
357
417
335
263
224
3370
2620
1160
761
543
16
17
18
19
20
151
150
146
144
141
161
163
164
164
164
177
173
179
180
180
185
180
183
185
180
174
173
172
174
174
181
188
189
187
184
177
171
164
161
156
108
106
106
106
105
69
69
69
68
68
319
460
432
391
419
199
244
255
192
174
432
361
307
271
256
21
22
23
24
25
139
137
139
141
141
164
164
163
161
161
176
184
186
188
181
179
172
165
166
168
175
173
176
176
174
181
174
170
166
168
150
147
145
141
139
102
102
101
99
101
68
68
66
66
65
243
208
186
256
200
204
280
233
205
189
242
219
205
194
181
26
27
28
29
30
31
137
137
138
141
140
137
168
169
171
171
164
---
173
178
170
161
169
179
178
165
163
169
185
203
175
177
178
-------
170
170
166
166
177
183
135
131
133
134
133
---
101
102
98
98
98
97
66
70
70
69
70
---
496
584
507
1030
577
420
170
156
151
149
242
195
171
161
155
151
146
---
4836
156.0
353
127
141
9590
0.04
4811
160.4
171
137
164
9540
0.04
5547
178.9
194
159
180
11000
0.04
5531
178.4
203
163
180
10970
0.04
4864
173.7
190
166
174
9650
0.04
5541
178.7
195
164
179
10990
0.04
4935
164.5
207
131
164
9790
0.04
3419
110.3
136
97
106
6780
0.03
2237
74.57
93
65
71
4440
0.02
7903
254.9
1030
66
186
15680
0.06
10986
354.4
1660
149
255
21790
0.08
14489
483.0
3370
135
212
28740
0.11
360.9
1365
1941
74.6
2002
327.3
3276
1919
78.3
1963
578.8
3607
1921
151
1962
447.1
1852
1923
77.9
1956
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
429.8
4832
1984
85.5
1957
383.5
2150
1920
122
1957
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
752.4
6327
1966
127
1957
1077
15990
1916
161
1964
1373
9072
1980
168
1964
FOR 2001 CALENDAR YEAR
178982
490.4
2480
119
128
355000
0.11
1470
239
141
1991
10390
1978
179
2002
1979
6281
1979
164
2002
1020
5933
1973
110
2002
FOR 2002 WATER YEAR
75099
205.8
Apr 7
Jul 3
Sep 27
3370
Sep 11
65
Jun 25
67
Jun 20
149000
0.048
279
170
86
WATER YEARS 1914 - 2002
890.9
3252
191
91000
59
62
645400
0.21
2010
329
159
1916
2000
Jan 19 1916
Jul 4 1955
Jul 2 1955
216
GILA RIVER BASIN
09498500 SALT RIVER NEAR ROOSEVELT, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Apr. 1958 to Sept. 1965 and Jan.1976 to current year.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Dec. 1996 to Jan. 1998.
WATER TEMPERATURE: Apr. 1958 to Sept. 1965 and Dec.1996 to Jan. 1998.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
19...
MAR
28...
JUN
12...
12...
JUL
17...
Date
DEC
19...
MAR
28...
JUN
12...
12...
JUL
17...
Date
DEC
19...
MAR
28...
JUN
12...
12...
JUL
17...
Date
DEC
19...
MAR
28...
JUN
12...
12...
JUL
17...
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
Time
Sample
type
1255
9
187
1320
9
166
1005
1015
9
7
0555
TURBIDITY
(NTU)
(00076)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
707
12.2
105
8.4
3790
14.5
5.5
140
350
46
700
9.3
103
8.5
4130
30.0
15.3
140
330
75
75
19
18
697
--
6.8
--
88
--
8.3
8.3
6390
6380
32.5
--
23.1
--
220
200
370
350
9
449
360
700
6.3
86
8.1
6060
29.5
25.5
180
380
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
85.0
87.0
33.0
33.0
14.0
14
82.0
88.0
31.0
32.0
14.0
76.0
72.0
81.0
82.0
43.0
41.0
44.0
41.0
23.0
23.0
41.0
47.0
23.0
84.0
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
132
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
8.3
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
600
209
251
4
990
.3
140
17
700
188
216
7
1080
.3
140
26
27
1150
1140
150
152
177
179
3
3
1900
1910
.3
.3
170
170
24
1090
199
234
4
1780
.2
140
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
SODIUM
ADSORPTION
RATIO
(00931)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
E6cl
2.71
E2110cl
1990
<.20
.02
.03
<.020
--
<.02
23
E2k
E2k
40
3.11
2290
2160
<.20
.01
.01
<.020
--
<.02
18
E6k
E6k
30
20
4.90
4.88
3600
3590
3450
3450
.30
<.20
.02
.03
.03
.04
<.020
<.020
.28
--
<.02
<.02
16
19
E4k
<1k
E7k
E6k
369
4.66
3430
3280
1.2
.03
.04
<.020
1.2
.13
18
>2700k
>2000k
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
<1
<1
7
7
56.0
55.0
<1
<1
330
329
<.5
<.5
<1
<1
<1
8
8
56.0
63.0
<1
<1
365
371
<.5
<.5
<1
<1
<1
<1
<1
10
10
11
15
84.0
84.0
100
100
<1
<1
<1
<1
586
574
616
623
<.5
<.5
<.5
<.5
<1
<1
<1
<1
15
15
150
<1
<2
562
589
<.5
<1.0
<1
110
217
GILA RIVER BASIN
09498500 SALT RIVER NEAR ROOSEVELT, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
19...
MAR
28...
JUN
12...
12...
JUL
17...
Date
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
<1
<2
<2
3
188
<2
<2
17
23
<.10
<.1
<1
<1
<2
<2
<2
590
<2
<2
9
40
<.10
<.1
<1
2
<1
<1
<2
<2
<2
<2
<2
<2
342
342
<2
<2
<4
<2
7
7
36
33
<.10
<.10
<.1
<.1
<1
<1
<2
1
6
<2
7
6
3910
<2
<4
2
282
<.10
<.1
<1
10
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
DEC
19...
<1
<1
<1
MAR
28...
1
1
<1
JUN
12...
<1
<1
<1
12...
<1
<1
<1
JUL
17...
1
2
<1
Remark codes used in this report:
< -- Less than
> -- Greater than
E -- Estimated value
Value qualifier codes used in this report:
c -- See laboratory comment
k -- Counts outside acceptable range
l -- Sample lab preparation problem
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
<1
1120
<2
<2
24
8
19
9.6
<1
1140
<2
<2
13
3
50
22.4
<1
<1
1490
1510
<2
<2
<2
<2
9
8
<4
<4
101
28
20.5
5.7
<2
1610
<2
<2
4
31
644
781
<1
218
GILA RIVER BASIN
09498501 PINTO CREEK BELOW HAUNTED CANYON NEAR MIAMI, AZ
LOCATION.--Lat 33° 25'07", long 111° 00'32", in SE1/4NE1/4, sec. 23, T.1 N., R.13 E. (unsurveyed), Gila County, Hydrologic Unit 15060103, 3/4 mi downstream from Haunted
Canyon, in Tonto National Forest, in Gila County, approximately 8 mi west northwest of Miami, AZ.
DRAINAGE AREA.--37.3 mi2, from topographic map.
PERIOD OF RECORD.--Oct. 1995 to current year.
GAGE.--Water-stage recorder. Control is a 90° v-notch, since Aug. 26, 1996. Elevation of gage is 3,180 ft above sea level, from topographic map.
REMARKS.--No estimated daily discharges. Records good. Some flows affected by pumpage from upstream wells.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 822 ft3/s, Feb. 28, 1997, at gage height 8.01 ft, recorded at gage. Minimum daily discharge, no flow for many
days for the period July 2002 through Sept. 2002.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 100 ft3/s and (or) maximum (*):
Date
Time
Dec. 12 ..........
Discharge (ft3/s) Gage height (ft)
1600
*0.61
*3.12
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.15
0.15
0.15
0.15
0.14
0.15
0.15
0.15
e0.15
e0.15
0.25
0.25
0.26
0.31
0.31
0.46
0.46
0.45
0.44
0.44
0.45
0.46
0.45
0.46
0.46
0.41
0.41
0.40
0.40
0.41
0.43
0.43
0.42
0.41
0.41
0.29
0.28
0.27
0.26
0.25
0.09
0.09
0.09
0.09
0.08
0.02
0.02
0.02
0.03
0.02
0.01
0.01
0.01
0.02
0.02
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.15
0.16
0.16
0.15
0.15
e0.15
0.15
0.15
0.15
0.15
0.31
0.32
0.34
0.36
0.38
0.44
0.44
0.44
0.45
0.46
0.45
0.45
0.46
0.45
0.44
0.40
0.41
0.47
0.49
0.52
0.43
0.41
0.41
0.40
0.40
0.24
0.23
0.22
0.22
0.21
0.08
0.07
0.07
0.07
0.07
0.02
0.02
0.02
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.02
0.02
11
12
13
14
15
0.14
0.14
0.14
0.13
0.13
0.16
0.16
0.17
0.17
0.17
0.43
0.57
0.60
e0.55
e0.55
0.45
0.45
0.46
0.47
0.46
0.44
0.44
0.44
0.44
0.44
0.51
0.50
0.48
0.48
0.46
0.39
0.39
0.38
0.38
0.37
0.20
0.20
0.19
0.18
0.18
0.07
0.07
0.06
0.06
0.06
0.02
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.02
0.01
0.01
0.01
0.00
16
17
18
19
20
0.13
0.13
0.13
0.13
0.13
0.17
0.17
0.18
0.17
0.17
e0.50
e0.50
e0.50
0.47
0.48
0.46
0.46
0.46
0.45
0.44
0.44
0.44
0.44
0.44
0.44
0.46
0.45
0.46
0.45
0.45
0.39
0.37
0.37
0.36
0.36
0.17
0.17
0.16
0.14
0.13
0.06
0.05
0.05
0.04
0.04
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.13
0.13
0.14
0.14
0.14
0.18
0.18
0.18
0.19
0.19
0.49
0.48
0.47
0.48
0.48
0.44
0.44
0.44
0.44
0.44
0.44
0.44
0.44
0.43
0.43
0.45
0.45
0.45
0.44
0.44
0.36
0.34
0.33
0.32
0.31
0.13
0.13
0.12
0.12
0.12
0.04
0.04
0.04
0.04
0.03
0.01
0.01
0.02
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.14
0.14
0.15
0.15
0.15
0.15
0.20
0.21
0.21
0.22
0.24
---
0.48
0.49
0.48
0.48
0.47
0.46
0.44
0.44
0.44
0.44
0.45
0.46
0.41
0.42
0.41
-------
0.44
0.43
0.44
0.45
0.45
0.44
0.31
0.32
0.31
0.31
0.29
---
0.12
0.12
0.11
0.11
0.11
0.09
0.03
0.03
0.03
0.03
0.03
---
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
4.40
0.142
0.16
0.13
8.7
0.00
5.19
0.173
0.24
0.15
10
0.00
13.50
0.435
0.60
0.25
27
0.01
13.91
0.449
0.47
0.44
28
0.01
12.35
0.441
0.46
0.41
24
0.01
13.90
0.448
0.52
0.40
28
0.01
11.11
0.370
0.43
0.29
22
0.01
5.47
0.176
0.29
0.09
11
0.00
1.70
0.057
0.09
0.03
3.4
0.00
0.39
0.013
0.03
0.00
0.8
0.00
0.07
0.002
0.02
0.00
0.1
0.00
0.07
0.002
0.02
0.00
0.1
0.00
0.115
0.29
1998
0.026
1996
0.361
0.99
1999
0.013
2002
0.540
1.35
1999
0.002
2002
0.197
0.65
1999
0.002
2002
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.873
5.44
2001
0.058
1998
2.589
16.9
2001
0.11
1998
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.967
3.66
1998
0.23
1997
2.647
11.3
1997
0.30
1996
9.362
38.3
1998
0.41
2000
FOR 2001 CALENDAR YEAR
1334.80
3.657
85
Apr 6
0.07 Jul 19
0.07 Jul 18
2650
0.098
10
0.39
0.12
5.791
15.4
2001
0.45
2002
3.295
9.73
2001
0.37
2002
0.385
0.84
1998
0.17
2000
FOR 2002 WATER YEAR
82.06
0.225
0.60 Dec 13
0.00 Jul 15
0.00 Jul 28
163
0.006
0.46
0.17
0.00
WATER YEARS 1996 - 2002
2.215
5.52
2001
0.22
2002
355
Feb 28 1997
0.00 Jul 15 2002
0.00 Jul 28 2002
1600
0.059
2.7
0.27
0.04
219
GILA RIVER BASIN
09498502 PINTO CREEK NEAR MIAMI, AZ
LOCATION.--Lat 33° 29'16", long 110° 59'41", in NW1/4SW1/4NW1/4 sec. 25, T.2 S., R.13 E. (unsurveyed), Gila County, Hydrologic Unit 15060103, 2 mi downstream from West
Pinto Creek, in Tonto National Forest, 0.5 mi downstream from Forest Road No. 287 crossing of Pinto Creek, approximately 12 mi northwest of Miami, AZ, on the right bank
side, at Pinto Valley weir.
DRAINAGE AREA.--102 mi2.
PERIOD OF RECORD.--Oct. 1994 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 2,820 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Some flows may be affected by pumpage from many upstream wells.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,010 ft3/s, Jan. 5, 1995, at gage height 9.10 ft.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 4.7 ft3/s, Aug. 5 at 1815, gage height, 2.81 ft, recorded at the gage. Minimum daily discharge, 0.67 ft3/s
Aug. 11 and 12.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
2.3
2.3
2.2
2.2
2.2
2.4
2.4
2.4
2.3
2.4
1.8
1.9
1.9
2.0
1.9
1.6
1.6
1.6
1.6
1.5
1.7
1.7
1.7
1.7
1.7
2.0
2.0
2.0
2.0
2.1
2.1
2.0
2.0
1.9
1.9
2.4
2.3
2.2
2.2
2.1
1.8
1.8
1.8
1.9
1.8
1.4
1.3
1.3
1.5
1.4
0.90
0.83
0.80
0.71
0.78
0.88
0.89
0.95
0.96
0.90
6
7
8
9
10
2.3
2.3
2.3
2.3
2.3
2.4
2.4
2.4
2.3
2.3
1.9
1.9
1.7
1.6
1.5
1.5
1.4
1.5
1.4
1.5
1.8
1.8
1.8
1.8
1.8
2.2
2.2
2.4
2.5
2.4
1.9
2.0
2.0
2.0
2.1
2.1
2.1
2.2
2.1
2.1
1.7
1.6
1.6
1.6
1.7
1.4
1.2
1.1
1.1
1.1
0.70
0.71
0.71
0.70
0.70
0.88
0.92
1.0
1.0
1.0
11
12
13
14
15
2.3
2.3
2.3
2.3
2.3
2.2
2.2
2.1
2.1
2.0
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.9
1.9
1.9
1.9
1.9
2.3
2.2
2.2
2.3
2.2
2.2
2.2
2.3
2.3
2.3
2.2
2.1
2.1
2.0
2.0
1.6
1.6
1.6
1.6
1.5
1.1
1.1
1.2
1.2
1.2
0.67
0.67
0.72
0.73
0.71
0.97
0.93
0.91
0.88
0.86
16
17
18
19
20
2.3
2.3
2.3
2.3
2.3
2.0
2.0
2.0
2.0
2.0
1.5
1.5
1.5
1.5
1.6
1.5
1.5
1.5
1.5
1.5
2.0
2.0
2.0
2.1
2.1
2.3
2.4
2.3
2.4
2.4
2.4
2.3
2.3
2.4
2.4
2.0
1.9
1.9
1.8
1.8
1.6
1.6
1.6
1.5
1.6
1.3
1.4
1.3
1.3
1.2
0.72
0.75
0.73
0.72
0.72
0.88
0.88
0.91
0.89
0.88
21
22
23
24
25
2.2
2.3
2.2
2.2
2.2
1.9
1.8
1.8
1.8
1.8
1.5
1.5
1.6
1.7
1.7
1.5
1.6
1.6
1.6
1.6
2.1
2.1
2.1
2.1
2.1
2.4
2.5
2.5
2.6
2.7
2.5
2.5
2.5
2.4
2.4
1.8
1.8
1.7
1.7
1.7
1.6
1.6
1.6
1.6
1.6
1.1
1.1
1.1
1.2
1.1
0.74
0.73
0.76
0.73
0.72
0.86
0.87
0.91
0.92
0.93
26
27
28
29
30
31
2.3
2.3
2.3
2.3
2.4
2.3
1.8
e1.7
1.7
1.7
1.8
---
1.7
1.6
1.6
1.6
1.6
1.7
1.6
1.6
1.6
1.7
1.7
1.7
2.1
2.1
2.0
-------
2.7
2.7
2.6
2.6
2.5
2.4
2.5
2.6
2.6
2.5
2.5
---
1.7
1.8
1.8
1.8
1.7
1.8
1.6
1.5
1.4
1.4
1.5
---
1.1
1.1
1.1
1.0
1.0
1.0
0.72
0.75
0.81
0.90
0.86
0.87
0.93
0.92
0.89
0.89
0.87
---
70.7
2.281
2.4
2.2
140
0.02
62.1
2.070
2.4
1.7
123
0.02
51.0
1.645
2.0
1.5
101
0.02
48.0
1.548
1.7
1.4
95
0.02
53.9
1.925
2.1
1.7
107
0.02
73.0
2.355
2.7
2.0
145
0.02
68.0
2.267
2.6
1.9
135
0.02
60.9
1.965
2.4
1.7
121
0.02
48.5
1.617
1.9
1.4
96
0.02
37.0
1.194
1.5
1.0
73
0.01
23.27
0.751
0.90
0.67
46
0.01
27.36
0.912
1.0
0.86
54
0.01
2.465
5.41
1995
0.38
1996
2.191
4.26
2001
0.20
1996
3.678
16.6
2000
0.18
1996
1.851
3.56
2001
0.24
1997
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
2.785
13.0
2001
0.025
1998
4.390
26.1
2001
0.005
1998
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
2.581
8.37
1995
0.014
1997
17.51
117
1995
0.26
1998
22.98
82.3
1998
0.76
1999
FOR 2001 CALENDAR YEAR
2844.6
7.793
285
Apr 6
1.5
Dec 10
1.5
Dec 10
5640
0.076
14
3.1
1.9
24.29
99.8
1995
0.99
1999
9.181
27.1
1998
0.98
1996
3.404
7.54
1995
0.69
1996
FOR 2002 WATER YEAR
623.73
1.709
2.7
Mar 25
0.67 Aug 11
0.69 Aug 6
1240
0.017
2.4
1.7
0.88
WATER YEARS 1995 - 2002
8.038
27.3
1995
1.21
1996
2040
Jan 5 1995
0.00 Dec 17 1996
0.00 Dec 17 1996
5820
0.079
9.8
2.0
0.23
220
GILA RIVER BASIN
09498503 SOUTH FORK PARKER CREEK NEAR ROOSEVELT, AZ
LOCATION.--Lat 33° 47'50", long 110° 57'35", in NE1/4NW1/4 sec. 7, T.5 N., R.14 E., Gila County, Hydrologic Unit 15060103, in Tonto National Forest, 1.5 mi upstream from
confluence with Pocket Creek, and 12 mi northeast of Roosevelt.
DRAINAGE AREA.--1.09 mi2.
PERIOD OF RECORD.--Nov. 1985 to Sept. 1992, June 1994 to current year. Prior to Nov. 1985, station operated by the Forest Service (records unpublished).
GAGE.--Water-stage recorder and two sharp-crested weirs. Elevation of gage is 5,440 ft above sea level, from topographic map.
REMARKS.--Records good, except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 87 ft3/s, Mar. 6, 1995, gage height, 4.10 ft; no flow for many days each year.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, since 1934, 270 ft3/s, Dec. 23, 1945, as reported by the Forest Service.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 0.19 ft3/s Aug. 5 at 1930. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.02
0.02
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.03
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
e0.01
e0.01
e0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.01
e0.01
e0.01
e0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
---
0.01
0.01
0.01
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.02
0.001
0.01
0.00
0.04
0.00
0.00
0.31
0.010
0.02
0.00
0.6
0.01
0.01
0.32
0.010
0.02
0.01
0.6
0.01
0.01
0.29
0.010
0.02
0.01
0.6
0.01
0.01
0.09
0.003
0.02
0.00
0.2
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.01
0.00
0.00
0.00
0.00
0.04
0.001
0.03
0.00
0.08
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.014
0.076
1992
0.000
1989
0.006
0.034
1998
0.000
1986
0.073
0.29
1986
0.000
1996
0.039
0.19
1986
0.000
1987
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.043
0.37
2001
0.000
1990
0.128
0.92
2001
0.000
1990
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.344
1.52
1992
0.002
1990
0.769
5.33
1995
0.008
1990
1.166
6.61
1995
0.010
2002
1.538
5.11
1995
0.003
2002
0.633
2.77
1991
0.000
2002
0.089
0.22
1986
0.000
2002
FOR 2001 CALENDAR YEAR
FOR 2002 WATER YEAR
124.03
0.340
1.07
0.003
4.1
0.00
0.00
246
0.31
4.23
1.1
0.02
0.00
Mar 8
Jun 20
Jun 23
0.03 Aug
0.00 Oct
0.00 Oct
2.1
0.003
0.04
0.01
0.00
0.00
6
1
1
WATER YEARS 1986 - 2002
0.389
1.50
0.003
51
Mar
0.00 Jun
0.00 Jun
282
0.36
4.85
0.88
0.02
0.00
1995
2002
6 1995
7 1986
7 1986
221
GILA RIVER BASIN
09499000 TONTO CREEK ABOVE GUN CREEK, NEAR ROOSEVELT, AZ
LOCATION.--Lat 33° 58'48", long 111° 18'10", in SW1/4NE1/4 sec. 2, T.7 N., R.10 E., Gila County, Hydrologic Unit 15060105, in Tonto National Forest, on left bank 600 ft
upstream from Gun Creek, 25 mi upstream from Roosevelt Dam, and 24 mi northwest of Roosevelt.
DRAINAGE AREA.--675 mi2.
PERIOD OF RECORD.--Dec. 1940 to current year.
REVISED RECORDS.--WSP 1283: Drainage area. WDR AZ–80–1: 1978(M), WDR AZ–88–1: 1979(P).
GAGE.--Water-stage recorder. Datum of gage is 2,523.14 ft above sea level.
REMARKS.--No estimated daily discharges. Records good. Small diversions above station for irrigation.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 72,500 ft3/s Jan. 8, 1993, gage height, 17.95 ft; maximum gage height, 18.2 ft Sept. 5, 1970; no flow at times.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,700 ft3/s and (or) maximum (*):
Date
Sept. 11 .........
Time
Discharge (ft3/s)
0100
*423
Gage height (ft)
*4.34
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
3.0
3.9
4.3
3.7
4.0
6.8
7.0
7.0
9.5
9.3
9.7
10
10
11
11
11
11
10
9.9
10
8.8
8.0
7.6
7.6
7.6
8.2
8.2
8.1
7.3
6.9
3.0
2.9
3.0
2.7
2.3
MAY
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.42
0.00
0.00
0.00
0.00
8.9
0.45
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
4.2
3.7
4.1
4.4
4.8
10
11
9.5
8.9
8.7
11
11
9.5
8.5
8.2
10
10
10
9.9
9.6
7.9
8.0
8.8
8.6
8.6
7.0
7.3
7.0
6.7
6.2
0.99
1.9
1.5
1.6
1.6
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.13
11
12
13
14
15
0.00
0.00
0.27
0.70
0.93
5.1
5.4
5.6
5.6
6.2
8.8
9.4
8.8
9.2
9.5
8.2
6.4
8.1
6.0
8.2
8.8
8.2
7.7
7.6
7.5
8.8
8.8
7.2
7.6
7.1
7.0
6.3
5.6
6.5
5.7
1.5
0.97
0.75
0.76
0.61
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
59
3.3
0.04
0.00
0.00
16
17
18
19
20
0.93
1.2
1.6
2.3
2.3
6.5
6.4
5.9
5.9
6.1
9.5
9.4
9.7
9.6
9.3
8.1
8.8
9.7
9.8
10
7.6
8.6
9.5
8.6
8.2
7.7
7.6
7.5
7.6
7.2
6.1
6.0
5.8
5.8
5.3
0.47
0.47
0.47
0.47
0.47
0.00
0.00
0.00
0.00
0.00
27
4.3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
2.2
1.4
1.2
1.4
1.5
6.1
6.3
6.3
6.3
6.9
9.3
10
10
10
10
10
9.8
9.9
9.6
9.5
8.7
9.6
9.1
9.3
9.7
7.0
7.2
7.1
7.1
7.0
5.3
5.1
4.9
4.2
4.3
0.30
0.31
0.47
0.07
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
1.5
1.3
1.2
1.4
1.6
2.2
6.7
6.5
6.7
6.8
7.0
---
10
10
10
9.8
9.5
9.5
8.4
8.2
9.1
9.5
10
11
9.6
9.3
9.8
-------
7.0
7.0
7.3
7.6
7.6
8.0
4.1
4.1
4.2
3.6
3.3
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
27.13
0.875
2.3
0.00
54
0.00
0.00
164.4
5.480
7.0
3.0
326
0.01
0.01
289.0
9.323
11
6.8
573
0.01
0.02
288.2
9.297
11
6.0
572
0.01
0.02
258.8
9.243
11
7.5
513
0.01
0.01
238.5
7.694
8.8
7.0
473
0.01
0.01
176.1
5.870
8.2
3.3
349
0.01
0.01
29.58
0.954
3.0
0.00
59
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
142.90
4.610
43
0.00
283
0.01
0.01
0.42
0.014
0.42
0.00
0.8
0.00
0.00
71.82
2.394
59
0.00
142
0.00
0.00
13.76
94.9
1955
0.000
1996
22.33
207
1955
0.000
2000
89.83
1091
1951
0.014
2002
41.63
626
1970
0.78
1956
43
38
15
7.8
4.7
2.0
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
58.79
1053
1973
0.88
2002
70.57
438
1973
5.48
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
226.8
2326
1966
9.32
2002
330.0
4272
1993
9.30
2002
352.1
4191
1980
9.24
2002
FOR 2001 CALENDAR YEAR
17546.75
48.07
831
Mar 11
0.00 Jun 30
0.00 Jun 30
34800
0.071
0.97
139
9.8
0.00
473.2
4159
1978
7.69
2002
163.8
1040
1941
5.87
2002
46.16
488
1941
0.95
2002
FOR 2002 WATER YEAR
1686.85
4.622
59
Sep 11
0.00 Oct 1
0.00 Oct 1
3350
0.007
0.09
9.8
4.1
0.00
WATER YEARS 1941 - 2002
152.6
652
4.62
36700
0.00
0.00
110600
0.23
3.07
244
22
4.0
1993
2002
Jan 8 1993
Jul 13 1943
Jun 19 1946
222
GILA RIVER BASIN
09501000 RESERVOIR SYSTEM ON SALT RIVER AT AND BELOW ROOSEVELT DAM, AZ
LOCATION.--This system comprises four storage reservoirs created by four separate dams on Salt River, Hydrologic Unit 15060106: Roosevelt Lake, formed by Roosevelt Dam
in sec. 20, T.4 N., R.12 E. (unsurveyed), on State Highway 88; Apache Lake, formed by Horse Mesa Dam, 17 mi downstream from Roosevelt Dam; Canyon Lake, formed by
Mormon Flat Dam, 27 mi downstream from Roosevelt Dam; Saguaro Lake, formed by Stewart Mountain Dam, 37 mi downstream from Roosevelt Dam. Contents given
herein are combined usable contents of the four reservoirs.
DRAINAGE AREA.--6,211 mi2, at Stewart Mountain Dam.
PERIOD OF RECORD.--Apr. 1910 to current year. Prior to Oct. 1934, monthend contents only, published in WSP 1313. Evaporation: Apr. 1958 to June 1963.
REVISED RECORDS.--WSP 1283: Drainage area. WRD Ariz. 1975: 1974.
GAGES.--Roosevelt Lake, water-stage indicator in powerplant connected to long distance transmitter on lake (water-stage recorder prior to Jan. 1, 1967); Apache Lake,
water-stage indicator in powerplant connected to long distance transmitter on lake since Apr. 1949 (prior to that date, nonrecording gage or reference mark); Canyon and
Saguaro Lakes, mercury column gages.
REMARKS.--Total capacity of the four reservoirs as of 1997 was 2,025,800 acre-ft, divided as follows: Roosevelt Lake, 1,653,000 acre-ft; Apache Lake, 245,000 acre-ft; Canyon
Lake, 58,000 acre-ft; Saguaro Lake, 70,000 acre-ft. Dead storage negligible. Dams forming these reservoirs were built as follows: Roosevelt 1905–11; Horse Mesa 1924–27;
Mormon Flat 1923–26; Stewart Mountain 1928–30. The four dams forming these reservoirs completely develop the fall in the Salt River from Roosevelt Lake to Stewart
Mountain Dam. Elevation of water surface varies from 1,422.0 ft (sill of lowest outlet in Stewart Mountain Dam) to 2,151 ft (top of spillway). Records given herein represent
usable contents. Prior to Oct. 1, 1972, contents were given at 2400 hours. Water from this system is used for irrigation of Salt River Valley, power generation, municipal
purposes, and recreation.
COOPERATION.--Records of daily contents furnished by Salt River Valley Water Users' Association.
EXTREMES FOR PERIOD OF RECORD.--Maximum contents of system, 1,764,000 acre-ft May 22, 1941; minimum, 20,680 acre-ft Sept. 16, 1940.
EXTREMES FOR CURRENT YEAR.--Maximum contents of system at 0800 hours, 741,600 acre-ft Oct. 1; minimum, 515,500 acre-ft Sept. 4.
RESERVOIR STORAGE, in (ACRE-FEET), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY OBSERVATION AT 0800 HOURS
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
741600
739800
738100
735300
733300
725100
724900
724900
725300
726200
728100
728200
728100
728300
728700
733100
733300
733800
732400
732000
725200
725400
725900
725900
725800
722200
721900
721900
721300
720800
722200
721700
721200
720900
720000
701500
700200
698500
695200
692700
658600
656500
655000
653100
651400
590000
587200
584600
582100
580300
550700
549200
548500
547900
547300
527500
526900
526300
515500
523200
6
7
8
9
10
731900
730900
731000
729800
728800
725900
725800
e725400
724900
725300
730500
731400
732700
733400
734100
731800
732000
731900
731800
731200
724800
724400
723700
723300
723400
721400
721500
721400
721700
722200
719900
718600
718400
718400
717800
691500
688700
694300
694000
690800
649100
647300
645600
643100
641100
578100
576200
574400
572600
570000
547800
549800
549800
549600
548700
523000
522900
522900
522700
522800
11
12
13
14
15
726900
725700
724100
723100
721100
725700
727100
726600
726400
726900
732600
732600
732400
732400
732500
731100
730000
728900
729200
729300
722900
722500
721900
722100
722000
721500
721800
722500
722600
722400
717600
716900
715800
715000
715400
687500
684700
682700
685700
686200
638400
636000
633600
632300
627500
569800
565800
564200
562700
561100
548400
547700
547000
545500
544200
524200
530200
532800
533600
534300
16
17
18
19
20
721300
720600
721200
721400
721400
726800
727200
727100
726900
727200
732500
732400
733400
733500
736700
729100
728300
718900
725800
724400
722400
721500
721200
720600
720700
722900
722600
722700
722900
723400
714200
713900
712400
712100
710500
682200
683100
681100
680100
677800
615800
624000
621000
618700
616400
559700
559900
560100
559800
559000
542600
540300
539100
537700
536400
535000
535500
535300
535900
536000
21
22
23
24
25
721300
722700
724100
724200
724700
727400
726900
726800
726900
727500
734500
735200
735200
736100
736000
725900
725400
725600
725300
724500
720400
721200
721200
721000
720600
724000
723200
721300
719700
722300
709000
708400
709300
707500
706500
673500
674900
673000
671100
663000
613700
611600
610200
607500
605100
558200
557600
556900
555200
553500
539000
534100
533100
532100
531200
536000
535800
536100
536100
535600
26
27
28
29
30
31
724900
725700
724300
725000
725000
724800
727100
728200
728500
728700
728000
---
735400
736200
737000
739000
738800
737700
724800
725000
725300
725600
725200
725600
721300
722100
722100
-------
723400
722900
722500
722300
722000
721500
706000
702300
701900
699300
701400
---
668200
666400
665400
664200
662000
660700
602300
600100
597900
595200
592800
---
552400
552000
552300
552300
552400
551700
530900
530200
529100
528800
527700
527700
535200
534900
535400
535000
535200
---
MAX
MIN
(*)
741600
720600
-16500
728700
724900
+3000
739000
728100
+5000
733800
718900
-7900
725900
720400
-3000
724000
719700
0
722200
699300
-20700
701500
660700
-42900
658600
592800
-68600
590000
551700
-39300
550700
527700
-23200
536100
515500
+7200
CAL YR 2001
WTR YR 2002
MAX 1009000
MAX 741600
MIN 720600
MIN 515500
(*) Change in contents, in acre-feet (from 0800 first of month)
Note--contents at 0800 Oct. 1, 2001, 534700
e
Estimated
223
GILA RIVER BASIN
09502000 SALT RIVER BELOW STEWART MOUNTAIN DAM, AZ
LOCATION.--Lat 33° 33'10", long 111° 34'33", in NW1/4NW1/4 sec. 6, T.2 N., R.8 E. (unsurveyed), Maricopa County, Hydrologic Unit 15060106, on left bank 3.5 mi downstream
from Stewart Mountain Dam and 6 mi upstream from Verde River.
DRAINAGE AREA.--6,232 mi2, of which 21 mi2 is below Stewart Mountain Dam.
PERIOD OF RECORD.--Mar. 1930 to current year. Monthly discharge only for some periods, published in WSP 1313. Published as "at Stewart Mountain Dam" 1934–41.
REVISED RECORDS.--WSP 1343: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 1,370 ft above sea level, from topographic map. Prior to Sept. 27, 1934, at site 3.2 mi upstream at different datum.
Sept. 27, 1934, to Jan. 20, 1950, at site 2.8 mi upstream at datum 1,396.33 ft above sea level.
REMARKS.--Records good, except for estimated daily discharges, which are poor. Flow regulated by four reservoirs above station. (See elsewhere in this report.) Entire flow
(except during infrequent periods of extreme flooding) is diverted at Granite Reef Dam, 10 mi downstream, for irrigation in Salt River Valley and for municipal use by the
city of Phoenix.
AVERAGE DISCHARGE.--72 years, 1,001 ft3/s, 725,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 75,200 ft3/s Feb. 15, 1980, gage height, 25.0 ft, from highwater mark inside gage well, from rating curve then
in use, extended above 10,000 ft3/s defined by known release rates from Stewart Mountain Dam and recorded gage heights; maximum daily discharge, 64,000 ft 3/s
Feb. 16, 1980; no flow at times in recent years.
EXTREMES FOR CURRENT YEAR.--Maximum daily discharge, 1,640 ft3/s June 18. Minimum daily discharge, 4.8 ft3/s Dec. 27.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
1070
970
1010
981
960
OCT
7.9
7.9
7.7
7.8
8.1
7.8
7.4
7.4
14
9.7
374
504
312
368
449
60
87
217
309
485
93
59
59
58
102
109
255
423
528
615
425
396
638
535
399
948
915
935
894
957
1180
1220
1150
1100
1180
1060
920
763
589
645
257
403
600
761
489
6
7
8
9
10
932
842
776
805
754
7.7
7.8
8.1
8.2
7.5
7.5
7.2
7.1
7.2
6.4
355
307
308
375
355
340
327
374
349
350
140
119
102
88
77
539
415
234
264
336
472
533
578
630
774
1060
1200
1150
1010
1100
1040
912
829
1000
1050
629
684
690
755
702
458
340
150
255
687
11
12
13
14
15
806
843
740
362
192
7.9
8.3
8.0
8.3
8.3
7.2
8.2
8.2
8.0
7.7
301
318
352
317
338
331
297
325
282
280
76
75
75
73
77
355
426
400
320
401
675
537
572
713
760
1170
1330
1390
1470
1280
957
1020
916
770
745
579
589
990
1020
1070
342
189
282
229
245
16
17
18
19
20
90
58
16
12
11
8.3
8.5
8.6
8.5
8.4
7.7
7.2
7.2
7.0
6.5
442
491
442
384
357
280
279
268
188
60
79
83
87
81
66
472
602
516
482
450
806
976
841
758
694
1300
1550
1640
1360
1350
639
377
273
741
731
1180
838
798
814
790
285
132
69
157
179
21
22
23
24
25
9.9
9.6
9.4
9.2
9.3
8.3
8.8
8.5
8.4
8.0
5.8
5.5
5.4
5.2
5.0
355
382
298
210
158
96
113
114
82
82
115
139
124
79
63
310
382
652
605
513
708
819
816
932
760
1300
1050
869
919
1300
478
689
1020
927
638
678
542
658
678
363
186
185
185
182
157
26
27
28
29
30
31
8.9
8.3
7.8
7.9
8.0
7.9
8.5
8.2
7.9
8.1
7.7
---
5.1
4.8
163
474
462
402
150
131
131
131
127
104
80
81
102
-------
74
312
489
243
72
58
509
457
331
424
438
---
670
736
730
859
849
998
1280
1280
1420
1240
1050
---
785
585
357
607
841
940
300
416
504
642
466
333
157
157
150
103
94
---
TOTAL 12326.2
MEAN
397.6
MAX
1070
MIN
7.8
AC-FT
24450
244.2
8.140
8.8
7.5
484
1694.4
54.66
474
4.8
3360
9626
310.5
504
104
19090
6238
222.8
485
60
12370
3437
110.9
489
58
6820
12763
425.4
652
109
25320
21589
696.4
998
396
42820
35717
1191
1640
869
70840
25697
828.9
1220
273
50970
21685
699.5
1180
300
43010
8065
268.8
761
69
16000
CAL YR 2001
WTR YR 2002
TOTAL 194866.1
TOTAL 159081.8
MEAN 533.9
MEAN 435.8
MAX 1660
MAX 1640
MIN 3.0
MIN 4.8
AC-FT 386500
AC-FT 315500
224
GILA RIVER BASIN
09502000 SALT RIVER BELOW STEWART MOUNTAIN DAM, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Dec. 1950 to Aug. 1992, Aug. 1999 to current year.
PERIOD OF DAILY RECORD.-SPECIFIC CONDUCTANCE: Oct. 1964 to Sept. 1982, Mar. 1983 to Sept. 1990.
WATER TEMPERATURES: Dec. 1950 to Sept. 1982, Mar. 1983 to Sept. 1990.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
OCT
03...
APR
04...
MAY
10...
AUG
29...
Date
OCT
03...
APR
04...
MAY
10...
AUG
29...
Date
OCT
03...
APR
04...
MAY
10...
AUG
29...
Date
OCT
03...
APR
04...
MAY
10...
AUG
29...
Time
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
NONCARB
DISSOLV
FLD. AS
CACO3
(MG/L)
(00904)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
0950
1000
2.3
725
6.0
74
8.0
1820
26.5
23.0
71
200
50.0
1100
617
3.5
725
12.0
122
8.1
1820
29.0
13.6
67
200
52.0
1110
777
720
6.5
71
8.0
1820
29.0
16.6
63
210
53.0
0945
725
722
6.5
79
7.7
1820
32.0
21.8
66
210
52.0
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
.90
1.9
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
SODIUM
ADSORPTION
RATIO
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
51.0
19.0
19.0
6.40
8
260
132
161
<1
440
.3
69.0
5
52.0
18.0
19.0
6.50
8
260
137
167
<1
440
.4
70.0
6
54.0
18.0
18.0
6.30
8
260
143
175
<1
440
.4
66.0
5
54.0
19.0
19.0
7.00
8
280
142
173
<1
450
.3
67.0
6
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
NITROGEN,
ORGANIC
TOTAL
(MG/L
AS N)
(00605)
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
1.35
995
924
.30
.01
.01
<.020
.29
.02
1.35
992
929
.40
.02
.03
<.020
.38
.02
1.32
974
930
.50
<.01
--
<.020
--
1.39
1020
961
.40
.02
.03
<.020
.38
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
14
E3k
E5k
<1
<5
E5k
E6k
<1
<.02
12
E2k
E5k
<1
.04
9
97
--
<1
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
<1
5
6
76.0
79.0
<1
<1
153
159
<.5
<.5
<1
<1
<1
4
4
87.0
97.0
<1
<1
160
162
<.5
<.5
<1
<1
<1
7
4
66.0
71.0
<1
<1
158
163
<.5
<.5
<1
<1
<1
10
12
85.0
90.0
<1
<1
173
172
<.5
<.5
<1
<1
225
GILA RIVER BASIN
09502000 SALT RIVER BELOW STEWART MOUNTAIN DAM, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
OCT
03...
APR
04...
MAY
10...
AUG
29...
Date
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<2
<2
<2
65
<2
<2
<2
<2
<2
98
<2
<2
<2
<2
10
56
<2
<2
<2
<2
<2
51
<2
<2
11
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
OCT
03...
<1
<1
<1
APR
04...
<1
<1
<1
MAY
10...
<1
<1
<1
AUG
29...
<1
<1
<1
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
k -- Counts outside acceptable range
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
10
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
99
<.10
<.1
<1
<1
<1
8
68
<.10
<.1
<1
<1
<1
52
141
<.10
<.1
<1
<1
<1
161
<.10
<.1
<1
<1
<1
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
550
<2
<2
6
<2
5.0
13.5
660
<2
<2
6
<2
6.0
10.0
590
<2
<2
15
<2
3.0
6.3
590
<2
<2
11
5
3.0
5.9
226
GILA RIVER BASIN
09502800 WILLIAMSON VALLEY WASH NEAR PAULDEN, AZ
LOCATION.--Lat 34° 52'00", long 112° 36'45", in SE1/4SE1/4 sec. 7, T.17 N., R.3 W., Yavapai County, Hydrologic Unit 15060201, on left bank 3.6 mi north of Simmons and 8.5 mi
west of Paulden.
DRAINAGE AREA.--255 mi2.
PERIOD OF RECORD.--Mar. 1965 to Sept. 1985: Aug. 2001 to current year.
REVISED RECORDS.--WSP 1119: 1939(M). WSP 1213: 1914, 1916(M), 1918(M), 1919, 1920(M), 1922–23(M), WDR AZ–90–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 4,455 ft. above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1970, at datum 1.00 ft. higher. Datum of 4,447 ft.
published in WRD Ariz. 1971–76 was in error.
REMARKS.-Records fair, except for estimated daily discharges and those above 15 ft3/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14,800 ft3/s Sept. 23, 1983, gage height, 9.96 ft from rating curve extended above 2,200 ft3/s on basis of
slope-area measurements at gage heights 6.38 ft, 8.22 ft, 8.93 ft, and 9.96 ft; no flow at times in most years.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 300 ft3/s and (or) maximum (*):
Date
Sept. 6 ...........
Time
Discharge (ft3/s)
2200
*1710
Gage height (ft)
*5.01
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
1
2
3
4
5
0.26
0.27
0.29
0.29
0.28
0.74
0.80
0.81
0.82
0.99
1.6
1.6
1.8
2.3
2.1
2.1
1.9
1.9
2.0
1.9
e1.8
1.8
e2.1
2.4
e2.3
1.9
1.8
e1.8
e1.8
1.9
6
7
8
9
10
0.29
0.56
0.50
0.51
0.47
0.96
0.94
0.94
0.96
0.98
1.9
1.9
1.8
1.9
2.1
2.2
2.2
2.4
2.6
2.5
e2.2
2.1
1.8
1.7
1.6
11
12
13
14
15
0.47
0.48
0.47
0.44
0.44
0.99
1.1
1.2
1.2
1.2
1.9
1.9
1.8
2.0
2.2
2.2
2.2
2.4
2.6
2.4
16
17
18
19
20
0.45
0.47
0.48
0.50
0.49
1.3
1.4
1.4
1.4
1.4
e1.9
1.6
1.6
1.6
1.6
21
22
23
24
25
0.52
0.54
0.54
0.57
0.58
1.4
1.5
1.5
1.5
1.7
26
27
28
29
30
31
0.61
0.64
0.65
0.67
0.70
0.72
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
15.15
0.489
0.72
0.26
0.49
30
0.00
APR
MAY
JUN
JUL
AUG
SEP
1.7
1.6
1.5
1.4
1.4
0.89
0.92
0.94
0.93
0.92
0.23
0.19
0.15
0.13
0.10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.9
1.9
1.9
1.8
1.8
2.5
3.0
2.1
1.8
1.9
0.89
0.86
0.84
0.75
0.72
0.08
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.7
1.9
1.8
1.7
1.6
1.8
1.8
1.9
1.8
1.8
1.8
1.8
e1.7
e1.6
e1.5
0.67
0.64
0.62
0.59
0.55
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.5
1.2
0.89
0.75
0.65
2.0
1.8
2.0
e2.0
e2.0
1.6
1.6
1.7
1.6
1.6
1.8
2.2
2.2
2.1
2.1
e1.4
e1.2
1.2
1.2
1.2
0.51
0.49
0.46
0.43
0.40
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.59
0.55
0.50
0.47
0.45
1.6
1.5
1.6
1.7
1.9
2.1
2.2
2.2
e2.0
1.9
1.5
1.5
1.6
1.8
1.8
2.2
2.0
1.9
2.2
2.0
1.1
1.1
1.1
1.1
0.95
0.40
0.43
0.44
0.40
0.40
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.42
0.39
0.38
0.37
0.37
1.5
1.6
1.4
1.7
1.7
---
e1.8
1.8
1.9
2.0
2.1
2.1
2.0
2.1
2.0
1.9
1.9
e1.8
1.9
1.9
1.9
-------
2.1
1.9
1.9
2.3
2.0
1.8
0.94
0.95
0.92
0.90
0.90
---
0.42
0.44
0.45
0.43
0.36
0.27
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.35
0.36
0.38
0.40
0.40
---
37.03
1.234
1.7
0.74
1.3
73
0.00
57.1
1.842
2.3
1.5
1.9
113
0.01
65.4
2.110
2.6
1.8
2.0
130
0.01
50.5
1.804
2.4
1.5
1.8
100
0.01
60.3
1.945
2.3
1.8
1.9
120
0.01
43.46
1.449
3.0
0.90
1.4
86
0.01
18.46
0.595
0.94
0.27
0.51
37
0.00
0.91
0.030
0.23
0.00
0.00
1.8
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
432.47
14.42
255
0.00
0.43
858
0.06
0.641
2.05
1973
0.000
1966
0.848
3.66
1971
0.000
2002
3.100
15.0
1971
0.000
2002
13.03
233
1983
0.030
1966
153
255
7.5
3.5
2.1
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1965 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
6.375
76.8
1973
0.000
1979
4.836
27.8
1966
0.48
1980
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
25.01
185
1966
0.93
1980
19.72
175
1980
1.81
1967
55.65
513
1980
1.62
1967
45.69
381
1978
1.34
1977
10.06
107
1965
0.99
1966
FOR 2002 WATER YEAR
780.78
2.139
255
0.00
0.00
1550
0.008
2.1
0.93
0.00
Sep
Jun
Jun
7
8
8
1.459
3.67
1980
0.000
1966
WATER YEARS 1965 - 2002
15.01
62.5
1980
1.58
1972
4200
Sep 23 1983
0.00 Apr 30 1966
0.00 Apr 30 1966
10870
0.059
6.8
1.8
0.10
227
GILA RIVER BASIN
09502900 DEL RIO SPRINGS NEAR CHINO VALLEY, AZ
LOCATION.--Lat 34° 49'32", long 112° 26'38", in NE1/4NW1/4SW1/4, sec. 26, T.17 N., R.2 W., Yavapai County, Hydrologic Unit 15060202, on left bank, about 3.5 mi north of
Chino Valley, AZ.
DRAINAGE AREA.--40.9 mi2.
PERIOD OF RECORD.--Aug. 1996 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 4,430 ft above sea level, from topographic map.
REMARKS.--Records good.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 65 ft3/s, for extension of rating curve, gage height, 3.66 ft, from highwater mark.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 23 ft3/s, Sept. 7, 2002, maximum gage height, 2.17 ft., Sept. 7, 2002. Minimum daily discharge, 1.1 ft3/s
June 21, 26–30, July 1, 2, 6–9, 21–23, 2002.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 23 ft3/s Sept. 7 at 1800, gage height, 2.17 ft. Minimum daily discharge, 1.1 ft3/s June 21, 26–30,
July 1, 2, 6–9, 21–23.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
1.4
1.4
1.4
1.4
1.4
1.6
1.6
1.6
1.6
1.7
1.7
1.7
1.7
1.8
1.8
1.9
1.9
1.9
1.9
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.6
1.6
1.6
1.6
1.5
1.4
1.4
1.4
1.4
1.4
1.3
1.3
1.3
1.3
1.2
1.1
1.1
1.2
1.2
1.2
1.2
1.2
1.3
1.3
1.3
1.4
1.4
1.5
1.5
1.3
6
7
8
9
10
1.4
1.5
1.5
1.5
1.5
1.6
1.7
1.7
1.7
1.6
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.6
1.7
1.6
1.6
1.6
1.4
1.4
1.4
1.4
1.4
1.2
1.2
1.2
1.2
1.2
1.1
1.1
1.1
1.1
1.2
1.3
1.3
1.3
1.3
1.3
1.4
4.8
1.7
1.4
4.1
11
12
13
14
15
1.5
1.5
1.5
1.5
1.5
1.6
1.6
1.6
1.6
1.6
1.8
1.8
1.8
1.8
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.6
1.6
1.6
1.6
1.5
1.4
1.5
1.5
1.5
1.6
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.3
1.4
1.4
1.4
1.4
1.8
1.5
1.4
1.4
1.5
16
17
18
19
20
1.5
1.5
1.5
1.5
1.5
1.6
1.6
1.6
1.6
1.7
1.9
1.9
1.9
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.5
1.5
1.5
1.5
1.5
1.7
1.4
1.4
1.3
1.3
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.4
1.4
1.4
1.4
1.4
1.5
1.5
1.5
1.5
1.5
21
22
23
24
25
1.5
1.5
1.5
1.5
1.5
1.6
1.6
1.6
1.6
1.7
1.9
1.8
1.8
1.9
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.7
1.7
1.7
1.7
1.7
1.5
1.5
1.5
1.5
1.5
1.3
1.3
1.3
1.3
1.3
1.1
1.2
1.2
1.2
1.2
1.1
1.1
1.1
1.2
1.2
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.4
26
27
28
29
30
31
1.5
1.5
1.5
1.5
1.6
1.6
1.7
1.7
1.7
1.7
1.7
---
1.9
1.9
1.9
1.9
1.9
1.9
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.9
1.9
-------
1.7
1.6
1.6
1.7
1.7
1.7
1.5
1.5
1.5
1.5
1.4
---
1.3
1.3
1.3
1.3
1.3
1.3
1.1
1.1
1.1
1.1
1.1
---
1.2
1.2
1.2
1.2
1.2
1.2
1.5
1.5
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.5
---
46.1
1.487
1.6
1.4
49.1
1.637
1.7
1.6
56.9
1.835
1.9
1.7
56.3
1.816
1.9
1.8
50.7
1.811
1.9
1.8
54.5
1.758
1.8
1.6
46.3
1.543
1.7
1.4
42.9
1.384
1.7
1.3
35.8
1.193
1.3
1.1
36.3
1.171
1.2
1.1
42.8
1.381
1.5
1.2
50.1
1.670
4.8
1.3
TOTAL
MEAN
MAX
MIN
CAL YR 2001
WTR YR 2002
TOTAL 616.5
TOTAL 567.8
MEAN 1.689
MEAN 1.556
MAX 3.6
MAX 4.8
MIN 1.2
MIN 1.1
228
GILA RIVER BASIN
09502960 GRANITE CREEK AT PRESCOTT, AZ
LOCATION.--Lat 34° 33'07", long 112° 27'42", in NE1/4SW1/4NW1/4, sec. 34, T.14 N., R.2 W., Yavapai County, Hydrologic Unit 15060202, at southwestern boundary of
Yavapai-Prescott Indian Reservation, within the City of Prescott, AZ.
DRAINAGE AREA.--30.0 mi2.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--Nov. 1994 to current year.
REVISED RECORDS.--WDR AZ–98–1: 1997.
GAGE.--Water-stage recorder. Elevation of gage is 5,285 ft above sea level, from topographic map.
REMARKS.--Records fair except for estimated daily discharges, which are poor. Flow is partly regulated by Goldwater Reservoirs on Bannon Creek.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,200 ft3/s Mar. 6, 1995, gage height, 8.58 ft from slope-conveyance survey; maximum gage height, 8.91 ft,
Aug. 26, 2000 (backwater from tributary). No flow for many days each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 400 ft3/s (revised) and (or) maximum (*):
Date
Time
Discharge (ft3/s) Gage height (ft)
Date
Time
Discharge (ft3/s) Gage height (ft)
July 13...........
1645
*1,140
*8.25
Sept. 6 ..........
2030
1,050
8.43
July 23...........
1930
463
7.65
Sept. 10 ........
2245
922
8.60
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.06
0.07
0.07
0.06
3.6
0.32
0.39
0.39
3.7
0.42
0.09
0.06
0.06
0.06
0.06
0.10
0.09
0.09
0.09
0.08
0.18
0.18
0.17
0.17
0.15
0.18
0.18
0.18
0.18
0.18
0.07
0.09
0.10
0.10
0.09
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.01
e0.01
2.0
5.7
e0.03
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.79
3.6
14
0.22
0.03
0.05
0.03
0.03
0.03
0.03
0.14
0.11
0.11
0.11
0.15
0.06
0.06
0.06
0.08
0.09
0.08
0.07
0.07
0.06
0.06
0.13
0.14
0.12
0.11
0.10
3.3
0.52
0.18
0.16
0.10
0.08
0.06
0.05
0.04
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.02
e0.01
e0.01
0.00
0.00
11
12
13
14
15
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.03
0.11
0.11
0.11
0.11
0.49
0.09
0.09
0.09
0.09
0.09
0.06
0.07
0.08
0.09
0.06
0.11
0.12
0.12
0.10
0.09
0.09
0.09
0.08
0.07
0.09
0.03
0.03
0.03
0.03
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
42
0.04
0.02
0.00
0.00
0.00
0.00
0.00
14
0.64
0.16
0.08
0.06
16
17
18
19
20
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.04
0.04
0.20
0.14
0.11
0.11
0.11
0.09
0.10
0.09
0.10
0.10
0.06
0.07
0.06
0.07
0.08
0.09
0.09
0.14
0.14
0.15
0.10
0.11
0.11
0.11
0.12
0.03
0.02
0.02
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.90
0.02
0.05
0.02
0.02
0.00
0.00
0.00
0.00
0.00
0.05
0.04
0.04
0.04
0.03
21
22
23
24
25
0.02
0.03
0.02
0.03
0.03
0.04
0.04
0.05
0.06
0.31
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.10
0.09
0.09
0.09
0.10
0.12
0.12
0.13
0.15
0.17
0.17
0.18
0.18
0.11
0.09
0.09
0.10
0.11
0.02
0.03
0.03
0.02
0.02
0.00
0.00
0.00
0.00
0.00
0.02
0.02
20
0.02
e0.02
0.00
0.00
0.00
0.00
0.00
0.03
0.03
0.03
0.03
0.03
26
27
28
29
30
31
0.03
0.03
0.03
0.04
0.04
0.04
0.30
0.30
0.31
0.35
0.34
---
0.11
0.11
0.11
1.5
0.18
0.11
0.09
0.10
0.14
0.13
0.10
0.09
0.17
0.18
0.19
-------
0.19
0.18
0.22
1.7
0.18
0.17
0.18
0.11
0.11
0.10
0.07
---
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
e0.02
e0.02
e0.02
e0.02
e0.01
e0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.03
0.02
0.02
0.01
e0.01
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
19.19
0.619
14
0.00
0.02
38
0.02
6.45
0.215
3.6
0.03
0.04
13
0.01
10.11
0.326
3.7
0.11
0.11
20
0.01
2.76
0.089
0.14
0.06
0.09
5.5
0.00
2.59
0.092
0.19
0.06
0.08
5.1
0.00
6.09
0.196
1.7
0.09
0.15
12
0.01
7.20
0.240
3.3
0.07
0.11
14
0.01
1.10
0.035
0.10
0.00
0.03
2.2
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
63.25
2.040
42
0.00
0.02
125
0.07
7.79
0.251
5.7
0.00
0.00
15
0.01
161.28
5.376
53
0.00
0.03
320
0.18
0.268
1.15
1999
0.000
2002
4.903
24.4
1999
0.000
1997
5.233
18.4
2000
0.25
2002
5.787
14.0
1997
0.25
2001
36
53
e4.7
3.2
49
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
2.224
13.1
2001
0.085
1997
0.846
3.14
2001
0.14
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
0.733
2.39
1998
0.20
2000
6.208
27.5
1995
0.089
2002
15.26
85.5
1995
0.093
2002
FOR 2001 CALENDAR YEAR
1095.18
3.000
129
0.00
0.00
2170
0.10
7.8
0.11
0.00
17.77
74.1
1995
0.20
2002
5.599
31.6
1998
0.24
2002
0.812
3.92
1998
0.027
1996
FOR 2002 WATER YEAR
287.81
0.789
Mar 10
Jun 17
Jun 25
53
Sep 7
0.00 Oct 1
0.00 May 28
571
0.026
0.19
0.06
0.00
WATER YEARS 1995 - 2002
3.845
10.1
1998
0.79
2002
940
Mar 6 1995
0.00 Jul 11 1995
0.00 Jul 22 1995
2790
0.13
7.7
0.20
0.00
229
GILA RIVER BASIN
09503000 GRANITE CREEK NEAR PRESCOTT, AZ
LOCATION.--Lat 34° 34', long 112° 27', in SW1/4 sec. 26, T.14 N., R.2 W., (unsurveyed), Yavapai County, Hydrologic Unit 15060202, at bridge on U.S. Highway 89, 2 mi north
of Prescott and 4.5 mi upstream from Willow Creek.
DRAINAGE AREA.--36.3 mi2.
PERIOD OF RECORD.--July 1932 to Sept. 1947, Oct. 1994 to current year.
REVISED RECORDS.--WDR AZ–98–1: 1997
GAGE.--Water-stage recorder. Datum of gage is 5,204.29 ft above sea level from surveyed bench-mark elevation and levels survey.
REMARKS.--No estimated daily discharges. Records fair. Flow is partly regulated by Goldwater Reservoirs on Bannon Creek.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,200 ft3/s Mar. 6, 1995, gage-height 8.90 ft, from slope-conveyance survey. No flow for many days.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Aug. 19, 1963, discharge of 6,600 ft3/s, gage height 9.4 ft (original gage height of 12.4 ft with datum correction), from
contracted opening survey.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 400 ft3/s (revised) and (or) maximum (*):
Date
Time
Discharge (ft3/s) Gage height (ft)
Date
Time
Discharge (ft3/s) Gage height (ft)
July 13 ..........
1715
1,060
6.71
Sept. 6...........
2117
994
6.61
July 23 ..........
2000
591
5.92
Sept. 10.........
2217
*1,570
*7.36
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.05
0.05
0.04
0.04
0.03
0.08
0.08
0.08
0.08
2.3
1.2
1.2
1.2
3.1
0.75
0.26
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.14
0.14
0.14
0.14
0.14
0.07
0.05
0.04
0.03
0.02
0.00
0.00
0.00
0.00
0.01
0.18
0.18
0.17
17
0.94
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.04
3.6
25
0.49
0.12
0.15
0.11
0.11
0.11
0.11
0.23
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
3.2
0.28
0.17
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.34
0.21
0.19
0.18
0.16
65
131
17
7.3
91
11
12
13
14
15
0.08
0.07
0.05
0.05
0.05
0.11
0.11
0.11
0.11
0.11
0.22
0.27
0.22
0.22
0.25
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.25
0.27
0.22
0.22
0.22
0.22
0.22
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.14
0.00
0.00
0.00
0.00
0.00
1.1
0.01
50
2.2
0.18
0.13
0.10
0.06
0.02
0.01
40
4.1
2.5
2.3
2.0
16
17
18
19
20
0.05
0.05
0.05
0.05
0.05
0.11
0.11
0.11
0.11
0.13
0.26
0.22
0.22
0.22
0.22
0.23
0.22
0.22
0.22
0.22
0.27
0.25
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.14
0.14
0.14
0.14
0.14
0.14
0.13
0.12
0.11
0.11
0.00
0.00
0.00
0.00
0.00
0.50
0.77
0.31
0.26
0.16
0.00
0.00
0.00
0.00
0.00
1.8
1.4
1.4
1.3
1.3
21
22
23
24
25
0.05
0.05
0.05
0.05
0.05
0.14
0.23
0.37
0.38
0.61
0.22
0.22
0.22
0.22
0.22
0.22
0.25
0.27
0.23
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.15
0.18
0.16
0.15
0.16
0.11
0.11
0.11
0.11
0.11
0.00
0.00
0.00
0.00
0.00
0.13
0.11
47
12
1.4
0.00
0.00
0.00
0.00
0.00
1.2
1.2
1.2
1.2
1.1
26
27
28
29
30
31
0.05
0.05
0.05
0.05
0.05
0.06
0.92
0.98
0.98
0.98
1.2
---
0.22
0.22
0.22
0.80
0.64
0.27
0.22
0.23
0.23
0.23
0.22
0.22
0.22
0.22
0.22
-------
0.22
0.22
0.22
1.5
0.42
0.27
0.14
0.16
0.17
0.14
0.14
---
0.11
0.11
0.10
0.09
0.08
0.07
0.00
0.00
0.00
0.00
0.00
---
0.41
0.21
0.18
0.18
0.18
0.18
0.00
0.00
0.00
0.00
0.00
0.00
1.1
1.1
1.1
1.1
0.88
---
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
30.57
0.986
25
0.03
61
0.03
11.12
0.371
2.3
0.08
22
0.01
14.35
0.463
3.1
0.22
28
0.01
6.99
0.225
0.27
0.22
14
0.01
6.32
0.226
0.27
0.22
13
0.01
8.35
0.269
1.5
0.22
17
0.01
7.98
0.266
3.2
0.14
16
0.01
3.82
0.123
0.14
0.07
7.6
0.00
0.22
0.007
0.07
0.00
0.4
0.00
117.46
3.789
50
0.00
233
0.10
19.86
0.641
17
0.00
39
0.02
380.58
12.69
131
0.00
755
0.35
0.271
1.59
1999
0.000
1933
2.756
32.0
1999
0.000
1934
4.059
23.0
2000
0.003
1947
3.390
17.1
1999
0.000
1932
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1932 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
1.377
15.2
2001
0.000
1933
0.685
4.10
2001
0.000
1933
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
2.535
32.9
1941
0.000
1933
4.992
35.4
1941
0.000
1934
18.24
159
1937
0.000
1934
FOR 2001 CALENDAR YEAR
1381.51
3.785
169
0.00
0.00
2740
0.10
9.9
0.37
0.01
23.13
79.2
1941
0.000
1934
7.767
67.2
1941
0.000
1934
1.058
7.03
1941
0.000
1935
FOR 2002 WATER YEAR
607.62
1.665
Mar 10
Jul 15
Jul 15
131
Sep
0.00 Jun
0.00 Jun
1210
0.046
1.1
0.19
0.00
7
7
7
WATER YEARS 1932 - 2002
5.766
24.2
0.37
1450
Feb
0.00 Jul
0.00 Jul
4180
0.16
10
0.22
0.00
1941
1935
7 1937
1 1932
4 1932
230
GILA RIVER BASIN
09503300 GRANITE CREEK BELOW WATSON LAKE NEAR PRESCOTT, AZ
LOCATION.--Lat 34° 36',49" long 112° 25'02", in NW1/4NE1/4NE1/4 sec. 12, T.14 N., R.2 W., Yavapai County, Hydrologic Unit 15060202, 150 ft downstream of bridge on the
U.S. Highway ALT 89, 6 mi north of Prescott, and 10 mi south of Chino Valley.
DRAINAGE AREA.--Undetermined.
PERIOD OF RECORD.--Sept. 1999 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 5,020 ft above sea level, from topographic map.
REMARKS.--No estimated daily discharges. Records poor. Flow is partially regulated by Goldwater Reservoirs (2) on Bannon Creek and by Willow Creek and Watson
Reservoirs. No diversion above station 09503000 (telecom with City Engineer 2/96). There is a diversion gate and canal at the gage, which conveys up to several ft3/s
during the growing season.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 247 ft3/s Sept. 23, 1999, gage height 4.87 ft, from an extension of the rating curve based on an equation for
free weir flow. No flow for many days during the period of record.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 120 ft3/s Sept. 7 at 1845, gage height, 4.50 ft. Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.07
0.07
0.08
0.09
0.07
0.03
0.04
0.04
0.04
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.05
0.05
0.05
0.05
0.05
0.04
0.04
0.04
0.04
0.04
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.01
0.01
0.01
0.01
5.0
22
3.9
0.05
0.05
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.02
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.4
0.03
0.01
0.01
0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.04
0.06
0.05
0.06
0.08
0.04
0.04
0.05
0.05
0.04
0.01
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.08
0.06
0.04
0.04
0.04
0.05
0.04
0.04
0.04
0.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.05
0.05
0.05
0.05
0.05
0.06
0.03
0.03
0.03
0.02
0.02
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.01
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.13
1.5
1.6
---
TOTAL
MEAN
MAX
MIN
MED
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.86
0.028
0.08
0.00
0.04
1.38
0.046
0.09
0.02
0.04
0.57
0.018
0.04
0.00
0.01
0.00
0.000
0.00
0.00
0.00
0.01
0.000
0.01
0.00
0.00
0.02
0.001
0.01
0.00
0.00
35.67
1.189
22
0.00
0.00
0.042
0.13
2001
0.000
2000
0.011
0.027
2001
0.000
2002
0.593
1.03
2001
0.001
2002
2.052
11.0
1999
0.000
2001
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1999 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
0.369
1.07
2001
0.000
2002
0.054
0.083
2001
0.000
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
0.046
0.14
2000
0.000
2002
0.251
0.64
2001
0.000
2002
0.419
1.08
2001
0.000
2002
FOR 2001 CALENDAR YEAR
319.73
0.876
62
0.00
0.00
0.96
0.00
0.00
2.547
7.15
2001
0.028
2002
0.142
0.25
2001
0.046
2002
0.045
0.12
2001
0.000
2000
FOR 2002 WATER YEAR
38.51
0.106
Mar 10
May 22
May 22
22
0.00
0.00
0.04
0.00
0.00
Sep
Oct
Oct
7
1
1
WATER YEARS 1999 - 2002
0.569
11.0
0.11
82
Sep 23
0.00 Oct 7
0.00 Oct 14
0.41
0.00
0.00
1999
2002
1999
1999
1999
231
GILA RIVER BASIN
09503700 VERDE RIVER NEAR PAULDEN, AZ
LOCATION.--Lat 34° 53'40", long 112° 20'32", in SW1/4SE1/4 sec. 39, T.18 N., R.1 W., Yavapai County, Hydrologic Unit 15060202, in Prescott National Forest, on right bank
0.3 mi upstream from Verde Valley Ranch, 7 mi east of Paulden, 8 mi upstream from Hell Canyon, 8 mi downstream from Granite Creek, and 10 mi downstream from
Sullivan Lake.
DRAINAGE AREA.--2,507 mi2 (includes 357 mi2 in Aubrey Valley Playa, a closed basin).
PERIOD OF RECORD.--July 1963 to current year.
REVISED RECORDS.--WDR AZ–83–1: 1981. WDR AZ–89–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 4,117 ft above sea level, from topographic map.
REMARKS.--No estimated daily discharges. Records good. Diversions and storage above station for irrigation and municipal use.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 23,200 ft3/s Feb. 20, 1993, gage height, 14.25 ft, from rating curve extended above 7,600 ft3/s on basis of
slope-area measurement of peak flow; minimum daily discharge, 15 ft3/s May 13–23, 1964.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 300 ft3/s and (or) maximum (*):
Date
Sept. 10.........
Time
Discharge (ft3/s)
1915
*1610
Gage height (ft)
*5.31
Minimum daily discharge, 20 ft3/s on many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
22
23
23
23
23
23
23
23
23
25
24
24
24
25
24
25
25
25
24
24
24
24
24
24
25
24
24
24
24
24
23
23
23
23
23
22
22
22
22
22
21
21
21
21
20
20
21
21
21
20
20
20
20
20
20
20
20
20
20
21
6
7
8
9
10
24
30
23
22
22
24
24
24
23
23
24
24
24
24
24
24
24
24
25
25
24
24
24
24
24
24
24
24
24
24
23
23
22
23
23
22
22
22
22
22
20
20
20
20
20
20
20
20
20
20
20
21
20
20
20
22
30
67
32
247
11
12
13
14
15
22
22
22
22
22
23
23
23
23
23
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
23
23
23
23
23
23
22
23
23
22
22
22
22
21
21
20
20
20
20
20
20
20
20
20
21
20
20
20
20
20
80
33
25
23
22
16
17
18
19
20
22
22
22
22
22
23
23
23
23
23
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
23
22
23
23
22
22
22
23
22
22
21
21
21
21
21
20
20
20
20
20
21
20
20
20
20
20
20
20
20
20
21
21
21
21
21
21
22
23
24
25
22
22
22
22
22
23
23
23
23
23
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
22
23
23
22
22
22
23
22
22
22
21
21
21
21
21
20
20
20
20
20
20
20
20
21
21
20
20
20
20
20
21
21
21
21
21
26
27
28
29
30
31
23
23
23
23
23
23
23
23
23
23
24
---
24
24
24
24
25
25
24
24
24
24
24
24
24
24
24
-------
23
23
23
23
22
23
22
22
22
22
22
---
21
21
21
21
21
21
20
20
20
20
20
---
21
20
20
20
20
20
20
20
20
20
20
20
21
21
21
21
21
---
703
22.68
30
22
1390
0.01
0.01
696
23.20
25
23
1380
0.01
0.01
747
24.10
25
24
1480
0.01
0.01
749
24.16
25
24
1490
0.01
0.01
673
24.04
25
24
1330
0.01
0.01
717
23.13
24
22
1420
0.01
0.01
674
22.47
23
22
1340
0.01
0.01
664
21.42
22
21
1320
0.01
0.01
604
20.13
21
20
1200
0.01
0.01
628
20.26
21
20
1250
0.01
0.01
621
20.03
21
20
1230
0.01
0.01
997
33.23
247
20
1980
0.02
0.02
23.88
27.5
1995
20.1
1964
25.52
36.4
1996
18.4
1963
30.36
80.9
1964
20.0
2002
37.27
440
1983
20.4
1978
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1963 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
30.90
200
1973
18.7
1964
26.84
43.7
1986
20.4
1965
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
40.77
295
1966
21.9
1978
57.09
861
1993
21.7
1972
112.2
1443
1993
19.6
1964
71.81
669
1978
19.3
1972
32.30
155
1965
21.3
1972
FOR 2002 WATER YEAR
8473
23.21
247
20
20
16810
0.011
0.15
24
22
20
Sep 10
Jun 5
Jun 5
24.83
30.7
1967
16.2
1964
WATER YEARS 1963 - 2002
42.38
215
1993
22.5
2000
13700
Feb 20 1993
15
May 13 1964
15
May 13 1964
30700
0.020
0.27
29
25
22
232
GILA RIVER BASIN
09504000 VERDE RIVER NEAR CLARKDALE, AZ
LOCATION.--Lat 34° 51'08", long 112° 03'55", in SE1/4NW1/4SE1/4 sec. 17, T.17 N., R.3 E., Yavapai County, Hydrologic Unit 15060202, in Prescott National Forest, on left bank
1.7 mi downstream from Sycamore Creek and 5.6 mi north of Clarkdale.
DRAINAGE AREA.--3,503 mi2, of which 364 mi2 is noncontributing including 357 mi2 in Aubrey Valley Playa, a closed basin.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--June 1915 to Oct. 1916, May 1917 to July 1921, Apr. 1965 to current year.
REVISED RECORDS.--WSP 1213: 1917, 1920. WDR AZ–89–1: Drainage area.
GAGE.--Water-stage recorder. Elevation of gage is 3,500 ft above sea level, from topographic map. June 1915 to June 1921, at site 2.5 mi downstream at different datum.
REMARKS.--No estimated daily discharges. Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 53,200 ft3/s Feb. 20, 1993, gage height, 26.39 ft, from rating curve extended above 20,000 ft3/s on basis of
slope-area measurement at 53,200 ft3/s; minimum daily, 55 ft3/s Aug. 31 and Sept. 1, 1920.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 2,000 ft3/s and (or) maximum (*):
Date
Oct. 6 ............
Time
Discharge (ft3/s)
2215
*1,360
Gage height (ft)
*3.17
Minimum daily discharge, 65 ft3/s on many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
70
70
70
70
70
76
76
76
77
79
76
76
75
77
76
75
75
76
75
75
80
80
81
80
81
79
79
79
80
80
77
76
76
75
73
71
72
72
71
71
68
68
68
69
68
65
65
66
67
67
66
68
69
69
68
67
67
67
67
68
6
7
8
9
10
241
277
99
81
77
79
78
77
77
77
75
74
73
73
74
75
75
76
77
76
80
80
80
80
80
80
80
80
79
80
75
75
73
72
72
71
71
71
70
70
68
67
67
66
66
66
66
66
65
67
68
68
67
66
66
70
175
135
125
102
11
12
13
14
15
75
77
76
76
75
78
78
78
78
78
73
73
72
72
73
76
76
76
77
77
80
80
80
80
80
80
79
79
79
79
71
72
71
71
72
70
70
70
70
70
66
67
66
66
66
67
67
67
67
68
66
66
66
66
67
466
198
102
79
74
16
17
18
19
20
75
75
75
75
75
78
78
78
78
78
72
72
72
72
72
78
77
77
77
78
80
80
80
80
80
80
80
80
79
79
72
71
71
71
71
70
69
69
69
69
66
66
66
66
66
74
70
69
68
68
67
67
66
66
76
72
71
70
69
69
21
22
23
24
25
75
76
75
75
75
78
78
78
77
78
73
73
73
73
73
78
78
79
78
78
79
79
80
80
79
79
79
79
79
79
71
72
72
72
72
69
70
70
70
70
66
66
66
66
65
67
66
66
67
70
71
67
67
67
67
69
68
69
68
68
26
27
28
29
30
31
75
75
75
76
76
76
77
77
76
77
77
---
73
74
74
75
76
76
79
79
80
80
80
79
79
79
79
-------
79
79
79
81
80
78
71
72
72
71
71
---
70
70
70
69
69
68
65
65
65
65
65
---
67
66
66
65
65
66
67
66
67
67
67
67
68
69
69
69
69
---
2708
87.35
277
70
5370
2325
77.50
79
76
4610
2285
73.71
77
72
4530
2392
77.16
80
75
4740
2236
79.86
81
79
4440
2461
79.39
81
78
4880
2173
72.43
77
71
4310
2171
70.03
72
68
4310
1990
66.33
69
65
3950
2076
66.97
74
65
4120
2088
67.35
76
66
4140
2899
96.63
466
67
5750
76.57
90.5
1987
61.6
1974
101.2
670
1919
64.1
1978
100.7
201
1919
67.4
2002
104.7
670
1983
66.3
1920
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1915 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
115.8
1080
1973
67.9
1979
122.8
736
1920
69.6
1967
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
MAXIMUM PEAK FLOW
MAXIMUM PEAK STAGE
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
184.9
1032
1966
73.7
2002
199.1
2800
1993
73.4
1967
443.2
3485
1980
73.8
1972
FOR 2001 CALENDAR YEAR
32804
89.87
1040
67
67
65070
87
75
69
458.8
2763
1978
73.2
1972
196.1
1520
1973
68.6
1968
87.24
355
1973
68.5
1966
FOR 2002 WATER YEAR
27804
76.18
Mar 14
May 31
Jun 6
466
65
65
55150
80
73
66
Sep 11
Jun 25
Jun 25
WATER YEARS 1915 - 2002
179.4
645
76.2
30000
55
59
50600
19.10
129900
187
82
72
Feb
Aug
Jun
Feb
Feb
20
31
27
21
21
1993
2002
1993
1920
1974
1920
1920
233
GILA RIVER BASIN
09504000 VERDE RIVER NEAR CLARKDALE, AZ—CONTINUED
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Mar. 1976 to Oct. 1979, Jan. 1980 to Aug. 1983 and Oct. 1986 to current year.
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
17...
FEB
26...
APR
22...
JUN
04...
04...
AUG
26...
Date
DEC
17...
FEB
26...
APR
22...
JUN
04...
04...
AUG
26...
Date
DEC
17...
FEB
26...
APR
22...
JUN
04...
04...
AUG
26...
Time
Sample
type
DISCHARGE,
INST.
CUBIC
FEET
PER
SECOND
(00061)
TURBIDITY
(NTU)
(00076)
BAROMETRIC
PRESSURE
(MM
OF
HG)
(00025)
OXYGEN,
DISSOLVED
(MG/L)
(00300)
OXYGEN,
DISSOLVED
(PERCENT
SATURATION)
(00301)
PH
WATER
WHOLE
FIELD
(STANDARD
UNITS)
(00400)
SPECIFIC
CONDUCTANCE
(US/CM)
(00095)
TEMPERATURE
AIR
(DEG C)
(00020)
TEMPERATURE
WATER
(DEG C)
(00010)
HARDNESS
TOTAL
(MG/L
AS
CACO3)
(00900)
CALCIUM
DISSOLVED
(MG/L
AS CA)
(00915)
1245
9
72
1.9
680
11.6
113
8.0
508p
18.0
9.0
240
53.0
1140
9
79
2.1
682
10.8
113
8.3
502
21.3
12.1
210
48.0
1100
9
72
2.3
675
9.5
108
8.2
497
27.5
15.8
230
51.0
1025
1035
9
7
70
70
2.8
5.9
670
670
9.1
9.1
113
113
8.2
8.2
503
502
27.0
27.0
19.2
19.2
220
220
52.0
52.0
1455
9
66
3.6
672
10.9
146
8.3
494
35.4
23.3
210
48.0
CALCIUM
TOTAL
RECOVERABLE
(MG/L
AS CA)
(00916)
MAGNESIUM,
DISSOLVED
(MG/L
AS MG)
(00925)
ALKALINITY
WAT DIS
TOT IT
FIELD
MG/L AS
CACO3
(39086)
BICARBONATE
WATER
DIS IT
FIELD
MG/L AS
HCO3
(00453)
CARBONATE
WATER
DIS IT
FIELD
MG/L AS
CO3
(00452)
SULFATE
DISSOLVED
(MG/L
AS SO4)
(00945)
RESIDUE
TOTAL
AT 105
DEG. C,
SUSPENDED
(MG/L)
(00530)
MAGNESIUM,
TOTAL
RECOVERABLE
(MG/L
AS MG)
(00927)
POTASSIUM,
DISSOLVED
(MG/L
AS K)
(00935)
SODIUM
ADSORPTION
RATIO
(00931)
SODIUM,
DISSOLVED
(MG/L
AS NA)
(00930)
CHLORIDE,
DISSOLVED
(MG/L
AS CL)
(00940)
FLUORIDE,
DISSOLVED
(MG/L
AS F)
(00950)
55.0
25.0
24.0
2.00
.7
25.0
266p
321
2
13.0
.2
8.50
3
50.0
23.0
24.0
1.80
.7
25.0
261
311
3
13.0
.2
8.10
7
52.0
24.0
24.0
1.90
.7
24.0
258
310
3
13.0
.2
7.70
6
52.0
52.0
23.0
23.0
24.0
24.0
2.00
1.90
.7
.7
23.0
23.0
266
255
318
305
3
3
12.0
12.0
.2
.2
7.50
7.50
6
6
49.0
23.0
24.0
2.00
.7
22.0
239
284
4
12.0
.2
6.80
2
PHOSPHORUS
TOTAL
(MG/L
AS P)
(00665)
OXYGEN
DEMAND,
CHEMICAL
(HIGH
LEVEL)
(MG/L)
(00340)
SOLIDS,
DISSOLVED
(TONS
PER
AC-FT)
(70303)
SOLIDS,
RESIDUE
AT 180
DEG. C
DISSOLVED
(MG/L)
(70300)
SOLIDS,
SUM OF
CONSTITUENTS,
DISSOLVED
(MG/L)
(70301)
NITROGEN,AMMONIA +
ORGANIC
TOTAL
(MG/L
AS N)
(00625)
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS N)
(00610)
.33
239
287
<.20
.02
.03
.150
<.02
.38
279
276
<.20
.02
.03
.060
.04
.39
290
277
<.20
<.01
--
.040
.12
.39
.39
285
288
279
273
<.20
<.20
E.02
E.02
---
E.040
E.040
<.02
<.02
.35
259
257
<.20
<.01
--
.020
<.02
NITROGEN,
AMMONIA
TOTAL
(MG/L
AS NH4)
(71845)
NITROGEN,
NO2+NO3
TOTAL
(MG/L
AS N)
(00630)
E COLI,
MTEC MF
WATER
(COL/
100 ML)
(31633)
COLIFORM,
FECAL,
0.7
UM-MF
(COLS./
100 ML)
(31625)
<5
E3k
E2k
<1
<1
6
E4k
E5k
<1
<1
<5
E9k
E9k
<1
<1
<5
<5
E14k
--
E6k
--
<1
<1
<1
<1
<5
E5k
--
<1
<1
ANTIMONY,
DISSOLVED
(UG/L
AS SB)
(01095)
ANTIMONY,
TOTAL
(UG/L
AS SB)
(01097)
234
GILA RIVER BASIN
09504000 VERDE RIVER NEAR CLARKDALE, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Date
DEC
17...
FEB
26...
APR
22...
JUN
04...
04...
AUG
26...
Date
DEC
17...
FEB
26...
APR
22...
JUN
04...
04...
AUG
26...
Date
DEC
17...
FEB
26...
APR
22...
JUN
04...
04...
AUG
26...
ARSENIC
DISSOLVED
(UG/L
AS AS)
(01000)
ARSENIC
TOTAL
(UG/L
AS AS)
(01002)
BARIUM,
DISSOLVED
(UG/L
AS BA)
(01005)
BARIUM,
TOTAL
RECOVERABLE
(UG/L
AS BA)
(01007)
BERYLLIUM,
DISSOLVED
(UG/L
AS BE)
(01010)
BERYLLIUM,
TOTAL
RECOVERABLE
(UG/L
AS BE)
(01012)
BORON,
DISSOLVED
(UG/L
AS B)
(01020)
BORON,
TOTAL
RECOVERABLE
(UG/L
AS B)
(01022)
CADMIUM
DISSOLVED
(UG/L
AS CD)
(01025)
CADMIUM
WATER
UNFLTRD
TOTAL
(UG/L
AS CD)
(01027)
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
CHROMIUM,
TOTAL
RECOVERABLE
(UG/L
AS CR)
(01034)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
17
17
180
190
<1
<1
157
157
<.5
<.5
<1
1
<2
18
21
170
180
<1
<1
160
164
<.5
<.5
<1
<1
<2
16
16
180
190
<1
<1
163
167
<.5
<.5
<1
<1
<2
16
17
15
17
200
200
200
200
<1
<1
<1
<1
163
163
161
161
<.5
<.5
<.5
<.5
<1
<1
<1
1
<2
<2
18
19
190
200
<1
<1
156
158
<.5
<.5
<1
<1
<2
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
MANGANESE,
TOTAL
RECOVERABLE
(UG/L
AS MN)
(01055)
MERCURY
DISSOLVED
(UG/L
AS HG)
(71890)
MERCURY
TOTAL
RECOVERABLE
(UG/L
AS HG)
(71900)
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
COPPER,
TOTAL
RECOVERABLE
(UG/L
AS CU)
(01042)
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
IRON,
TOTAL
RECOVERABLE
(UG/L
AS FE)
(01045)
<2
4
130
<2
<2
5
7
<.10
<.1
<1
<1
<1
<1
<2
5
93
<2
<2
6
9
<.10
<.1
<1
<1
<1
<1
<2
4
128
<2
<2
7
11
<.10
<.1
<1
<1
<1
<1
<2
<2
4
3
141
143
<2
<2
<2
<2
6
6
10
10
<.10
<.10
<.1
<.1
<1
<1
<1
<1
<1
<1
<1
<1
<2
4
89
<2
<2
6
8
<.10
<.1
<1
<1
<1
<1
SILVER,
DISSOLVED
(UG/L
AS AG)
(01075)
SILVER,
TOTAL
RECOVERABLE
(UG/L
AS AG)
(01077)
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
ZINC,
TOTAL
RECOVERABLE
(UG/L
AS ZN)
(01092)
STRONTIUM,
TOTAL
RECOVERABLE
(UG/L
AS SR)
(01082)
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
THALLIUM,
DISSOLVED
(UG/L
AS TL)
(01057)
LEAD,
TOTAL
RECOVERABLE
(UG/L
AS PB)
(01051)
THALLIUM,
TOTAL
(UG/L
AS TL)
(01059)
SEDIMENT,
SUSPENDED
(MG/L)
(80154)
<1
<1
210
<2
<2
3
<2
<1
<1
190
<2
<2
<2
3
<1
<1
190
<2
<2
4
<2
33
6.4
<1
<1
<1
<1
190
190
<2
<2
<2
<2
3
3
3
3
18
3.4
--
<1
<1
180
<2
<2
<2
<2
18
Remark codes used in this report:
< -- Less than
E -- Estimated value
Value qualifier codes used in this report:
k -- Counts outside acceptable range
p -- Value reported is preferred
30
SEDIMENT,
DISCHARGE,
SUSPENDED
(T/DAY)
(80155)
5.8
8.0
--
1.7
3.2
NICKEL,
TOTAL
RECOVERABLE
(UG/L
AS NI)
(01067)
SELENIUM,
DISSOLVED
(UG/L
AS SE)
(01145)
SELENIUM,
TOTAL
(UG/L
AS SE)
(01147)
235
GILA RIVER BASIN
09504000 VERDE RIVER NEAR CLARKDALE, AZ—CONTINUED
WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
Water-quality measurements in the following table were made as part of the ADEQ Fixed-Station Network Program. The following analyses are quality-assurance samples
processed during the 2002 sampling period and are defined in the introductory text section titled "Water-Quality Control Data".
CALCIUM
DISSample
type
Date
Time
APR
22...
1110
2
CHROMIUM,
DISSOLVED
(UG/L
AS CR)
(01030)
COPPER,
DISSOLVED
(UG/L
AS CU)
(01040)
Date
APR
22...
<1
SOLVED
(MG/L
AS CA)
(00915)
<.02
IRON,
DISSOLVED
(UG/L
AS FE)
(01046)
<2
<2
Remark codes used in this report:
< -- Less than
MAGNESIUM,
SODIUM,
NITROGEN,AMMONIA +
NITROGEN,
NITROGEN,
DIS- DIS- ORGANIC AMMONIA NO2+NO3 PHORUS
SOLVED
(MG/L
AS MG)
(00925)
SOLVED
(MG/L
AS NA)
(00930)
<.03
<.1
LEAD,
DISSOLVED
(UG/L
AS PB)
(01049)
MANGANESE,
DISSOLVED
(UG/L
AS MN)
(01056)
<2
<1
TOTAL
(MG/L
AS N)
(00625)
<.20
NICKEL,
DISSOLVED
(UG/L
AS NI)
(01065)
<1
TOTAL
(MG/L
AS N)
(00610)
<.01
ZINC,
DISSOLVED
(UG/L
AS ZN)
(01090)
<2
TOTAL
(MG/L
AS N)
(00630)
<.020
PHOS-
ALUMINUM,
DIS- DISTOTAL
(MG/L
AS P)
(00665)
<.02
DIS-
SOLVED
(UG/L
AS AL)
(01106)
<3
BARIUM,
BERYLLIUM,
CADMIUM
SOLVED
(UG/L
AS BE)
(01010)
SOLVED
(UG/L
AS CD)
(01025)
DISSOLVED
(UG/L
AS BA)
(01005)
<.5
<1
<.5
236
GILA RIVER BASIN
09504420 OAK CREEK NEAR SEDONA, AZ
LOCATION.--Lat 34° 51'42", long 111° 45'40", in NE1/4NE1/4NE1/4 sec. 18, T.17 N., R.6 E., Coconino County, Hydrologic Unit 15060202, on left bank 290 ft downstream from
State Highway 179 bridge in Sedona, 28 mi southwest of Flagstaff, and 35.1 mi upstream from mouth.
DRAINAGE AREA.--233 mi2.
PERIOD OF RECORD.--Oct. 1981 to current year. Prior to Oct. 1995 published under station 09504430.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 4,169.20 ft above sea level (ADOT benchmark).
REMARKS.--No estimated daily discharges. Records good. Many diversions above and below station for irrigation.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 23,200 ft3/s Feb. 19, 1993, gage height, 20.33 ft, from outside floodmark, from rating curve extended above
8,000 ft3/s on the basis of contracted-opening of peak flow; minimum daily, 19 ft3/s June 12, 1986.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 900 ft3/s and (or) maximum (*):
Date
Oct. 6 ............
Time
Discharge (ft3/s)
2030
*259
Gage height (ft)
*3.52
Minimum daily discharge, 25 ft3/s on June 28 and Sept. 5.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
28
29
29
29
29
32
32
32
32
34
34
34
34
39
36
33
32
32
33
32
34
34
34
34
34
34
34
34
34
34
31
31
31
30
30
28
28
29
28
28
27
27
27
27
27
26
26
27
28
27
27
32
29
34
29
26
26
26
26
25
6
7
8
9
10
52
38
33
32
32
34
33
33
33
33
34
34
35
35
36
32
32
32
33
32
34
34
34
34
34
34
34
34
34
34
31
32
31
30
30
28
27
27
27
27
27
27
27
27
27
27
27
27
27
28
29
29
28
28
28
26
48
57
34
37
11
12
13
14
15
31
31
31
31
31
33
33
33
33
34
35
35
34
34
36
32
32
33
33
33
34
34
34
34
34
34
33
33
33
33
30
29
29
29
29
27
27
27
27
27
27
27
27
27
27
28
27
27
27
27
28
28
28
27
27
45
36
30
30
29
16
17
18
19
20
31
31
31
31
31
34
34
34
34
34
34
34
34
33
33
33
33
33
33
33
34
34
34
34
34
33
33
34
34
33
29
29
29
29
29
27
27
27
27
27
27
26
27
27
27
28
28
28
28
29
28
28
28
27
28
29
29
29
29
29
21
22
23
24
25
31
31
31
31
31
34
34
34
33
34
33
33
34
34
34
33
33
33
33
34
34
33
33
33
33
33
33
32
32
32
29
28
28
28
28
27
27
27
27
27
27
27
27
27
26
30
29
29
29
29
27
27
27
27
27
29
29
28
29
28
26
27
28
29
30
31
31
32
32
31
32
32
34
34
34
35
35
---
33
33
32
33
34
34
34
34
34
34
34
34
33
34
34
-------
32
32
32
33
32
31
28
29
29
29
29
---
27
27
27
27
27
27
26
26
25
26
26
---
29
29
28
28
27
27
26
26
26
27
27
26
29
29
29
29
29
---
986
31.81
52
28
1960
1005
33.50
35
32
1990
1060
34.19
39
32
2100
1021
32.94
34
32
2030
947
33.82
34
33
1880
1027
33.13
34
31
2040
883
29.43
32
28
1750
844
27.23
29
27
1670
802
26.73
27
25
1590
861
27.77
30
26
1710
863
27.84
34
26
1710
934
31.13
57
25
1850
28.36
34.0
1995
23.0
1985
30.49
44.5
1986
24.7
1985
32.38
49.1
1992
24.4
1985
37.67
103
1983
24.3
1989
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
36.31
96.4
1987
26.5
1995
52.11
191
1983
29.1
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
84.19
362
1983
30.1
1996
102.3
1084
1993
31.1
1986
179.3
980
1993
29.9
1996
FOR 2001 CALENDAR YEAR
19322
52.94
520
27
27
38330
114
33
28
252.5
703
1982
30.7
1996
119.8
376
1998
29.4
2002
34.31
67.1
1983
25.7
1989
FOR 2002 WATER YEAR
11233
30.78
Mar 14
Jul 6
Jul 28
57
25
26
22280
34
31
27
Sep 8
Jun 28
Jun 25
WATER YEARS 1982 - 2002
81.98
249
30.7
8600
19
22
59390
128
32
27
1993
2002
Mar 6 1995
Jun 12 1986
Aug 23 1985
237
GILA RIVER BASIN
09504500 OAK CREEK NEAR CORNVILLE, AZ
LOCATION.--Lat 34° 45'52", long 111° 53'25", in NW1/4SW1/4 sec. 23, T.16 N., R.4 E., Yavapai County, Hydrologic Unit 15060202, on right bank 250 ft downstream from county
highway bridge, 0.2 mi upstream from Page Springs, 4 mi northeast of Cornville, and 15 mi upstream from mouth.
DRAINAGE AREA.--355 mi2.
PERIOD OF RECORD.--July 1940 to Sept. 1945, Apr. 1948 to current year.
REVISED RECORDS.--WSP 1149: 1948(M). WRD Ariz. 1974: 1973. WDR AZ–89–1: Drainage area. WDR AZ–98–1: 1997.
GAGE.--Water-stage recorder and crest-stage gage. Elevation of gage is 3,470 ft above sea level, from topographic map. Prior to Mar. 10, 1981, at site 250 ft upstream at
same datum.
REMARKS.--Records fair. Numerous diversions above and below station for irrigation.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 26,400 ft3/s Feb. 19, 1980, gage height, 16.30 ft; maximum gage height, 19.15 ft, Feb. 20, 1993; minimum
discharge, 6 ft3/s July 27, 1940.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage since at least 1885, 23 ft in Mar. 1938, from floodmarks (upstream side of bridge).
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,300 ft3/s and (or) maximum (*):
Date
Sept. 11.........
Time
Discharge (ft3/s)
0030
*700
Gage height (ft)
*3.84
Minimum daily discharge, 16 ft3/s on June 17, 19, 20.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
27
27
26
26
25
32
32
31
31
31
38
38
36
41
53
40
38
37
38
39
32
32
32
32
32
29
30
30
31
31
35
32
31
30
30
27
29
29
31
34
22
21
21
20
21
21
20
20
20
e20
20
20
24
28
23
19
21
20
20
20
6
7
8
9
10
26
96
31
29
28
32
30
30
30
30
38
34
35
35
35
38
36
36
36
36
32
33
32
31
32
30
30
29
29
29
30
33
32
31
33
33
27
26
27
25
22
23
22
25
24
21
20
20
20
20
21
21
19
19
18
22
59
139
114
35
11
12
13
14
15
27
27
26
25
26
30
31
32
32
32
35
35
34
33
35
35
35
35
38
38
33
33
33
32
32
29
31
32
31
31
33
34
36
37
35
25
25
28
24
25
21
17
17
17
17
21
22
22
22
23
18
18
18
17
17
178
55
27
26
25
16
17
18
19
20
25
25
25
25
26
32
32
32
31
32
36
35
37
36
34
40
38
36
37
37
31
32
31
30
30
33
35
35
35
33
33
32
31
29
30
25
25
24
23
22
17
16
17
16
16
22
22
23
22
23
17
18
18
18
18
24
24
24
24
23
21
22
23
24
25
27
27
28
29
29
32
32
32
33
32
34
34
35
35
34
37
37
36
33
32
30
30
30
29
29
33
34
35
35
35
28
28
30
34
44
22
22
e23
25
27
17
17
17
17
19
22
22
21
21
21
17
18
17
18
18
23
23
24
22
22
26
27
28
29
30
31
31
31
31
31
31
31
34
33
35
36
38
---
34
34
35
36
41
39
33
33
34
34
33
35
29
30
30
-------
34
34
37
38
40
36
33
38
37
39
31
---
27
25
20
21
22
23
21
23
23
23
22
---
21
23
21
20
20
19
18
18
18
20
22
20
22
23
23
24
26
---
924
29.81
96
25
27
1830
0.08
962
32.07
38
30
32
1910
0.09
1124
36.26
53
33
35
2230
0.10
1120
36.13
40
32
36
2220
0.10
874
31.21
33
29
32
1730
0.09
1014
32.71
40
29
33
2010
0.09
989
32.97
44
28
32
1960
0.09
791
25.52
34
20
25
1570
0.07
591
19.70
25
16
20
1170
0.06
655
21.13
23
19
21
1300
0.06
594
19.16
28
17
18
1180
0.05
1131
37.70
178
19
24
2240
0.11
20.48
58.0
1957
13.7
1943
23.89
40.8
1950
14.1
1940
33.18
90.9
1951
12.9
1944
39.65
373
1970
14.7
1980
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
46.06
571
1973
20.1
1990
61.35
450
1966
22.7
1993
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
108.4
881
1967
29.6
1996
98.01
1304
1993
32.2
1996
177.6
1391
1980
31.2
2002
FOR 2001 CALENDAR YEAR
18898
51.78
539
18
19
37480
0.15
111
31
22
241.1
1323
1978
28.8
1972
162.7
1097
1973
25.0
1996
31.83
216
1973
17.1
1943
FOR 2002 WATER YEAR
10769
29.50
Mar 14
Jun 20
Jun 16
178
Sep 11
16
Jun 17
17
Jun 14
21360
0.083
37
30
19
WATER YEARS 1940 - 2002
85.51
256
19.6
14000
8.0
9.4
61950
0.24
135
32
18
1993
1946
Dec 6 1966
Jul 10 1940
Aug 2 1944
238
GILA RIVER BASIN
09505200 WET BEAVER CREEK NEAR RIMROCK, AZ
LOCATION.--Lat 34° 40'29", long 111° 40'17", in NW1/4SW1/4 sec. 24, T.15 N., R.6 E., Yavapai County, Hydrologic Unit 15060202, in Coconino National Forest, on right bank
4.5 mi northeast of Rimrock and 5.7 mi upstream from Red Tank Draw.
DRAINAGE AREA.--111 mi2.
PERIOD OF RECORD.--Oct. 1961 to Sept. 1982 (continuous-record), Oct. 1982 to Sept. 1991 (annual maximums only), Oct. 1991 to current year.
REVISED RECORDS.--WRD Ariz. 1969: Drainage area. WRD AZ–93–1, 1993.
GAGE.--Water-stage recorder and concrete control. Datum of gage is 4,020 ft above sea level.
REMARKS.--No estimated daily discharges. Records fair. No known diversion or regulation above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,000 ft3/s Jan. 8, 1993, gage height, 17.21 ft from rating curve extended above 5,400 ft3/s on basis of
slope-area measurement of peak flow; minimum, 5.4 ft3/s Aug. 14, 1962; July 1, 2, 5, 8, 9, 12, and 21, 1967; June 2–5, 10–12, and 28, 1993; and July 5 and 6, 1993.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 600 ft3/s and (or) maximum (*):
Date
Sept 10..........
Time
2038
Discharge (ft3/s) Gage height (ft)
*3,590
*9.77a
Minimum daily discharge, 6.3 ft3/s, Dec. 7 and June 9.
a–from highwater mark, peak occurred between 15 minute recorded gage height values
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
6.6
7.0
7.1
7.1
7.0
6.6
6.6
6.6
6.6
7.0
7.8
7.8
7.8
9.1
7.7
7.9
7.6
7.8
7.8
7.8
7.4
7.4
7.4
7.4
7.2
7.8
7.8
7.8
7.8
7.8
7.5
7.5
7.4
7.4
7.4
6.7
6.8
6.8
6.7
6.7
6.5
6.5
6.6
6.6
6.6
6.8
6.8
7.0
7.1
7.1
7.7
9.3
8.5
9.1
8.2
6.9
6.8
6.8
6.7
6.7
6
7
8
9
10
7.0
7.4
7.4
7.3
7.2
7.1
6.8
6.7
6.7
6.8
6.4
6.3
6.5
6.6
6.9
7.7
7.6
7.6
7.7
7.8
7.2
7.2
7.4
7.2
7.3
7.7
7.6
7.8
7.8
7.8
7.7
7.7
7.5
7.4
7.4
6.7
6.7
6.7
6.7
6.6
6.5
6.5
6.4
6.3
6.4
6.9
6.9
6.8
6.9
7.5
8.0
7.6
7.5
7.4
7.3
7.0
12
11
8.4
226
11
12
13
14
15
6.9
6.9
7.0
7.0
6.7
6.8
6.7
6.6
6.6
6.6
7.1
7.2
7.2
7.2
7.3
7.7
7.6
7.5
7.5
7.6
7.4
7.5
7.5
7.6
7.4
7.8
7.9
7.9
7.9
7.9
7.3
7.3
7.2
7.1
7.1
6.6
6.6
6.6
6.7
6.7
6.5
6.5
6.5
6.4
6.4
7.2
7.2
7.4
7.6
7.6
7.3
7.3
7.2
7.2
7.2
66
11
8.2
7.7
7.4
16
17
18
19
20
6.7
6.7
6.8
6.8
6.8
6.6
6.6
6.5
6.5
6.5
7.3
7.3
7.3
7.3
7.7
7.6
7.6
7.6
7.6
7.6
7.4
7.7
7.6
7.7
7.7
7.9
7.8
8.2
8.1
7.9
7.2
7.3
7.2
7.2
7.2
6.7
6.7
6.7
6.7
6.7
6.4
6.5
6.5
6.6
6.6
7.5
7.8
7.4
7.4
7.4
7.2
7.2
7.2
7.1
7.4
7.2
7.1
7.1
7.1
7.1
21
22
23
24
25
6.7
6.8
6.8
6.8
6.8
6.5
6.5
6.5
6.5
6.7
7.8
7.8
7.8
7.6
7.6
7.6
7.6
7.6
7.5
7.6
7.6
7.6
7.7
7.6
7.6
7.8
7.8
7.8
7.8
7.8
7.1
6.9
6.9
6.8
6.6
6.7
6.8
6.8
6.7
6.7
6.5
6.5
6.5
6.6
6.6
7.3
7.3
7.4
7.7
7.5
7.3
7.1
7.2
7.0
7.0
7.1
7.1
7.0
7.0
7.0
26
27
28
29
30
31
6.6
6.6
6.6
6.6
6.6
6.6
7.3
7.6
7.6
7.6
7.8
---
7.5
7.4
7.6
7.7
7.7
7.9
7.6
7.5
7.2
7.3
7.4
7.4
7.7
7.6
7.7
-------
7.7
7.7
7.6
8.3
7.8
7.6
6.6
6.6
6.6
6.6
6.6
---
6.7
6.7
6.7
6.7
6.6
6.5
6.6
6.6
6.6
6.7
6.7
---
7.5
7.4
7.4
7.3
7.2
7.3
7.0
6.9
6.9
7.0
7.0
6.9
7.1
7.1
7.1
7.0
6.9
---
212.9
6.868
7.4
6.6
422
0.06
0.07
204.1
6.803
7.8
6.5
405
0.06
0.07
230.2
7.426
9.1
6.3
457
0.07
0.08
235.5
7.597
7.9
7.2
467
0.07
0.08
209.7
7.489
7.7
7.2
416
0.07
0.07
242.7
7.829
8.3
7.6
481
0.07
0.08
214.3
7.143
7.7
6.6
425
0.06
0.07
207.4
6.690
6.8
6.5
411
0.06
0.07
195.7
6.523
6.7
6.3
388
0.06
0.07
225.6
7.277
7.8
6.8
447
0.07
0.08
230.2
7.426
9.3
6.9
457
0.07
0.08
504.6
16.82
226
6.7
1000
0.15
0.17
6.691
9.88
1972
4.53
1994
8.691
28.0
1999
5.25
1994
10.65
75.0
1992
6.06
1994
11.39
81.9
1970
5.81
1994
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1962 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
13.78
231
1973
5.72
1995
14.10
128
1966
6.23
1996
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
29.14
253
1979
6.00
1994
41.22
601
1993
6.01
1994
66.69
438
1980
7.08
1967
FOR 2001 CALENDAR YEAR
6184.5
16.94
184
5.6
5.7
12270
0.15
2.07
44
6.9
6.1
104.7
500
1978
7.27
1967
66.29
433
1973
6.76
1996
10.74
109
1973
5.84
1993
FOR 2002 WATER YEAR
2912.9
7.981
Mar 8
Jun 30
Jun 28
226
Sep 10
6.3
Dec 7
6.4
Jun 8
5780
0.072
0.98
7.8
7.2
6.6
WATER YEARS 1962 - 2002
31.78
103
7.70
5230
4.2
4.3
23020
0.29
3.89
54
7.3
6.2
1973
1977
Jan 8 1993
Jun 13 1994
Jun 10 1994
239
GILA RIVER BASIN
09505350 DRY BEAVER CREEK NEAR RIMROCK, AZ
LOCATION.--Lat 34° 43'43", long 111° 46'30", in NE1/4NW1/4 sec. 1, T.15 N., R.5 E., Yavapai County, Hydrologic Unit 15060202, in Coconino National Forest, on left upstream
abutment of abandoned highway bridge, 1,000 ft upstream from present State Highway 179, and 5.5 mi north of Rimrock.
DRAINAGE AREA.--142 mi2.
PERIOD OF RECORD.--Oct. 1960 to current year.
REVISED RECORDS.--WRD Ariz. 1969: Drainage area.
GAGE.--Water-stage recorder and concrete control. Datum of gage is 3,694.38 ft above sea level (AZ Highway Department benchmark).
REMARKS.--Records good, except for estimated daily discharges, which are poor. No known diversions above station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 26,600 ft3/s Sept. 5, 1970, gage height, 14.35 ft, from rating curve extended above 6,000 ft3/s on basis of
computation of peak flow over weir at gage height 9.07 ft and 9.69 ft and slope-area measurement at gage height 14.35 ft; no flow for many days each year.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 600 ft3/s and (or) maximum (*):
Date
Sept. 7...........
Time
Discharge (ft3/s)
2000
*1,210
Gage height (ft)
*4.73
Minimum daily discharge, no flow for many days.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
6
7
8
9
10
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
91
14
e1.1
e0.84
11
12
13
14
15
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
9.6
e1.0
e0.50
e0.00
e0.00
16
17
18
19
20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
e0.00
e0.00
e0.00
e0.00
0.00
21
22
23
24
25
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
26
27
28
29
30
31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-------
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
---
TOTAL
MEAN
MAX
MIN
MED
AC-FT
CFSM
IN.
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.000
0.00
0.00
0.00
0.00
0.00
0.00
118.04
3.935
91
0.00
0.00
234
0.03
0.03
0.005
0.17
1979
0.000
1961
0.415
10.6
1999
0.000
1965
1.736
34.9
1992
0.000
1962
11.44
224
1970
0.000
1962
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
8.135
246
1973
0.000
1961
16.56
251
1966
0.000
1961
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
ANNUAL RUNOFF (CFSM)
ANNUAL RUNOFF (INCHES)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
e
Estimated
56.26
602
1979
0.000
1961
56.10
814
1993
0.000
1961
106.3
850
1980
0.000
1961
FOR 2001 CALENDAR YEAR
6947.33
19.03
407
0.00
0.00
13780
0.13
1.82
69
0.00
0.00
154.3
678
1978
0.000
1967
103.3
598
1973
0.000
1972
7.799
208
1973
0.000
1961
FOR 2002 WATER YEAR
118.04
0.323
Mar 13
Jan 1
Jan 1
91
Sep
0.00 Oct
0.00 Oct
234
0.002
0.03
0.00
0.00
0.00
7
1
1
WATER YEARS 1961 - 2002
43.17
144
0.32
13100
0.00
0.00
31270
0.30
4.13
91
0.00
0.00
1993
2002
Dec 18 1978
Oct 1 1960
Oct 1 1960
240
GILA RIVER BASIN
09505800 WEST CLEAR CREEK NEAR CAMP VERDE, AZ
LOCATION.--Lat 34° 32'19", long 111° 41'36", in NW1/4NW1/4 sec. 11, T.13 N., R.6 E., Yavapai County, Hydrologic Unit 15060203, in Coconino National Forest, on left bank at
Bull Pen Ranch, 9 mi east of Camp Verde, and 11 mi upstream from mouth.
DRAINAGE AREA.--241 mi2.
PERIOD OF RECORD.--Dec. 1964 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 3,630 ft above sea level, from topographic map.
REMARKS.--Records fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 24,800 ft3/s Jan. 8, 1993, gage height, 13.22 ft, from floodmarks and rating curve extended above 2,700 ft3/s
on basis of slope-area measurements at gage heights 8.3 ft, 10.15 ft, and 13.22 ft; minimum daily, 11 ft 3/s Aug. 1 and 22, 1986.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,000 ft3/s and (or) maximum (*):
Date
Sept. 7...........
Time
Discharge (ft3/s)
0145
*25
Gage height (ft)
*0.65
Minimum daily discharge, 12 ft3/s June 23–25.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
14
14
14
14
14
15
15
15
15
16
16
16
16
19
19
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
16
16
16
15
15
13
13
13
13
13
13
13
13
13
13
13
14
14
15
15
13
13
13
13
13
6
7
8
9
10
14
15
16
16
16
16
16
16
16
16
17
17
16
16
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
18
18
17
17
15
15
15
15
15
13
13
13
13
13
13
13
13
13
14
14
14
13
13
13
14
20
19
18
17
11
12
13
14
15
15
15
14
14
14
16
16
16
16
16
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
16
16
16
16
16
15
15
15
15
15
13
13
13
13
13
14
14
13
14
14
13
13
13
13
13
18
15
14
13
13
16
17
18
19
20
14
14
14
14
15
16
16
16
16
16
17
17
17
17
17
17
17
17
17
16
17
17
17
17
17
17
17
17
17
17
16
16
16
16
16
15
15
14
14
14
13
13
13
13
13
14
14
14
14
13
13
13
13
13
13
13
13
13
13
13
21
22
23
24
25
15
15
15
15
15
16
16
16
16
16
17
17
17
17
17
17
17
17
17
16
17
17
17
17
17
17
17
17
17
17
16
16
16
16
16
14
14
14
14
14
13
13
12
12
12
13
13
13
13
14
13
13
13
13
13
13
13
13
13
13
26
27
28
29
30
31
15
15
15
15
15
15
16
16
16
16
16
---
17
17
17
17
17
18
17
17
17
17
17
17
17
17
17
-------
17
17
17
18
18
18
16
16
16
16
16
---
14
14
14
14
13
13
13
13
13
13
13
---
13
13
13
13
13
13
13
13
13
13
13
14
13
13
13
14
14
---
455
14.68
16
14
902
476
15.87
16
15
944
527
17.00
19
16
1050
525
16.94
17
16
1040
476
17.00
17
17
944
530
17.10
18
17
1050
492
16.40
18
16
976
452
14.58
16
13
897
387
12.90
13
12
768
413
13.32
14
13
819
412
13.29
15
13
817
423
14.10
20
13
839
16.25
24.8
1984
12.9
2002
17.68
34.9
1999
13.3
2002
21.96
102
1992
13.3
2002
21.94
113
1983
14.0
2001
TOTAL
MEAN
MAX
MIN
AC-FT
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1965 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
31.42
458
1973
13.8
1977
27.31
110
1973
15.2
1969
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOWEST DAILY MEAN
ANNUAL SEVEN-DAY MINIMUM
ANNUAL RUNOFF (AC-FT)
10 PERCENT EXCEEDS
50 PERCENT EXCEEDS
90 PERCENT EXCEEDS
78.14
758
1979
15.7
1970
76.60
1136
1993
16.3
1981
136.7
956
1980
14.8
1974
198.4
886
1978
15.3
1967
FOR 2001 CALENDAR YEAR
12371
33.89
340
14
14
24540
70
16
14
113.7
923
1973
15.4
1967
24.88
157
1973
14.3
2000
FOR 2002 WATER YEAR
5568
15.25
Mar
Jun
Jun
8
7
7
20
12
13
11040
17
16
13
Sep 7
Jun 23
Jun 19
WATER YEARS 1965 - 2002
63.55
199
15.3
13100
11
12
46040
96
18
14
1973
2002
Jan 8 1993
Aug 1 1986
Jun 25 1968
241
GILA RIVER BASIN
09506000 VERDE RIVER NEAR CAMP VERDE, AZ
LOCATION.--Lat 34° 26'54", long 111° 47'21", in NW1/4 sec. 11, T.12 N., R.5 E. (unsurveyed), Yavapai County, Hydrologic Unit 15060203, in Prescott National Forest, on right
bank 600 ft upstream from Chasm Creek, 9 mi southeast of Camp Verde, and 9.7 mi downstream from West Clear Creek.
DRAINAGE AREA.--5,009 mi2, of which 365 mi2 is noncontributing, including 357 mi2 in Aubrey Valley Playa, a closed basin.
PERIOD OF RECORD.--Apr. 1934 to Sept. 1945 and Oct. 1988 to current year.
REVISED RECORDS.--WDR AZ–89–1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 2,874.11 ft above sea level.
REMARKS.- No estimated daily discharges. Records good. Several diversions above station for irrigation.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 119,000 ft3/s Feb. 20, 1993, gage height, 28.36 ft from floodmarks from rating curve extended above
17,000 ft3/s; minimum daily, 35 ft3/s July 15, 1997.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 4,000 ft3/s and (or) maximum (*):
Date
Sept. 8 ...........
Time
Discharge (ft3/s)
0445
*3160
Gage height (ft)
*8.02
Minimum daily discharge, 47 ft3/s July 7–8.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1
2
3
4
5
100
94
100
106
112
160
159
156
149
152
184
192
188
197
206
195
195
192
190
190
188
189
191
190
186
152
149
156
159
158
156
141
127
124
121
108
102
107
105
105
63
60
57
57
61
55
49
52
53
52
56
57
58
63
80
53
52
50
51
51
6
7
8
9
10
111
119
234
256
207
164
166
169
171
163
206
200
192
190
191
188
188
187
188
187
185
180
169
163
171
161
167
162
157
163
124
147
167
163
159
103
96
90
86
81
62
60
58
59
59
51
47
47
51
59
91
96
88
80
74
58
246
1060
558
590
11
12
13
14
15
188
175
172
167
150
165
167
164
172
171
193
193
191
190
192
185
186
186
187
189
171
171
167
158
156
158
149
148
155
150
151
142
128
120
115
81
92
93
91
86
58
59
59
54
55
59
61
61
63
73
69
61
51
49
50
1280
640
437
303
245
16
17
18
19
20
143
150
145
140
134
172
171
167
163
169
191
190
188
188
191
190
189
188
187
186
155
155
157
159
158
150
158
169
171
169
108
114
117
112
109
77
76
71
70
69
60
59
53
56
54
71
83
84
81
81
51
51
51
53
53
211
190
169
139
124
21
22
23
24
25
136
137
135
134
133
172
167
169
169
173
190
185
185
184
185
186
189
188
186
187
153
152
151
147
143
158
152
142
138
138
107
109
101
105
105
67
74
72
74
79
51
48
52
53
55
75
72
71
74
67
51
51
49
51
52
120
109
107
102
96
26
27
28
29
30
31
137
146
146
142
138
151
175
174
174
181
180
---
185
186
186
190
192
194
188
187
187
187
186
185
140
146
154
-------
136
136
139
143
152
156
101
103
112
119
114
---
78
76
73
74
73
69
58
57
55
53
52
---
73
70
74
69
59
58
52
51
56
55
52
52
92
95
97
104
113
---
4538
146.4
256
94
9000
0.03
0.04
5024
167.5
181
149
9970
0.04
0.04
5915
190.8
206
184
11730
0.04
0.05
5829
188.0
195
185
11560
0.04
0.05
4605
164.5
191
140
9130
0.04
0.04
4751
153.3
171
136
9420
0.03
0.04
3721
124.0
167
101
7380
0.03
0.03
2598
83.81
108
67
5150
0.02
0.02
1697
56.57
63
48
3370
0.01
0.01
1995
64.35
84
47
3960
0.01
0.02
1854
59.81
96
49
3680
0.01
0.01
7542
251.4
1280
50
14960
0.05
0.06
81.84
123
1992
56.6
2002
109.1
232
1999
48.4
1997
192.9
616
1992
59.8
2002
241.6
1152
1939
83.0
1989
TOTAL
MEAN
MAX
MIN
AC-FT
CFSM
IN.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2002, BY WATER YEAR (WY)
MEAN
MAX
(WY)
MIN
(WY)
185.9
551
1941
106
1992
206.3
338
1941
167
2002
SUMMARY STATISTICS
ANNUAL TOTAL
ANNUAL MEAN
HIGHEST ANNUAL MEAN
LOWEST ANNUAL MEAN
HIGHEST DAILY MEAN
LOW