MASUEN CONSULTING LLC
WATER BUDGET FINAL REPORT
November 13th, 2012
FOR
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 1
INTRODUCTION:
Interstate M.U.D., in an effort to create a water rate structure based on annual water use and supported
by sound science, employed Masuen Consulting LLC to develop a water budget for every water meter in
the I.M.U.D. service area that provides irrigation water.
EXECUTIVE SUMMARY:
Masuen Consulting developed water budgets for each water meter supplying irrigation water, whether
it supplied both irrigation and domestic water (combo meter) or irrigation water only (irrigation meter);
both annual and monthly water budgets were created for each meter. Water budgets for meters that
supplied domestic water only were not created as that task was not in the scope of this study.
The water budget development process employed consisted of the following steps.
Step 1. For each water meter, whether ‘combo’ or ‘irrigation’, the irrigated area(A) supplied by that
water meter, the reference Et (Eto), a landscape coefficient(KL), effective rainfall (Re) and an irrigation
system distribution uniformity (DU) were determined. These variables were entered into the following
formula, along with the constant (27,154.29 = gallons per acre-inch), to calculate an annual landscape
water budget.
{(A)(Eto-Re)(KL)}/DU}{27,154.29} = annual landscape water budget (gallons)
Note: For ‘irrigation’ meters the annual landscape water budget is the annual water budget for the
meter.
Step 2. For ‘combo’ meters one more step was required to determine the meters annual water budget.
The domestic use (domestic annual water budget) needed to be calculated. This was accomplished using
a winter averaging method commonly utilized by water purveyors in the Houston, Texas area. This
method consisted of determining the total water used during the month of February for a period of five
years and then dividing this total by five; the result was considered the ‘monthly domestic water budget’
for that meter. The monthly domestic water budget was multiplied by twelve (12) to obtain the annual
domestic water budget.
Step 3. The annual landscape and annual domestic water budgets, for each meter, were combined to
obtain each ‘combo’ meters annual water budget.
Step 4. Once the annual water budgets were developed then monthly water budget numbers, per
meter, were developed using the same five year (2006-2010) Eto data from Texas Agrilife by allotting a
percentage of the total annual Eto to each month. For each month, the annual water budget was
multiplied by this ‘monthly percentage’ to obtain the monthly water budgets.
(Eto) and (Re) were obtained from Texas Agrilife’s Ft. Bend weather station for the five year period from
January 2006 through December 2010. The irrigated area was obtained using a survey quality GPS unit,
the (KL) was calculated using Kd, Kmc and Ks factors. Finally, the DU was obtained by conducting three
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 2
hundred (300) field catch can tests throughout the district. The average DU from these tests was
determined to be 0.39. It was agreed by the board to use an initial DU of.40. Therefore, the initial water
budgets will utilize this DU. This DU will be increased in four incremental steps, over time, until a DU of
.70 is utilized. Each step the (DU) will be increased by .10 and the annual and monthly water budgets for
each meter will be re-calculated. The initial annual water budgets, for each meter, can be found in the
WATER BUDGET section of this report.
THE PROCESS:
The following process was followed to develop a water budget for each water meter.
1. A list of all water meters in the I.M.U.D. district was obtained from Severn Trent, the districts
utility management company; this list is included in the data section below. The list included the
meter number, meter address, customer name, customer address, customer phone number,
contact name, and whether the meter was an irrigation meter or commercial meter, among
other items of information.
2. Utilizing this list, each property owner for each meter was contacted and an on-site meeting was
arranged. During the site meeting their irrigation system was operated so that irrigated area
could be determined.
3. Once the areas being irrigated were identified, a survey quality Trimble GPS/GIS unit was
utilized to obtain the irrigated area.
4. Next catch can ‘audit’ data on 300 zones at 50 different sites was conducted to obtain
distribution uniformity (D.U.) and precipitation rate (P.R.). These zones represented a good cross
section of the zone types, area types, and system types utilized in the I.M.U.D. area.
5. Eto information was obtained from the Ft. Bend weather station operated by Texas Agrilife. The
average Eto for the time period from January 2006 through December 2010 was calculated and
utilized.
6. Effective rainfall (Re) was calculated from gross rainfall data obtained from the Ft. Bend weather
station. This was done on a daily basis for the five year period from January 2006 through
December 2010. The process utilized to calculate the effective rainfall, for each day rainfall
occurred, was as follows:
a. the first 1/10th” of rain in a day was considered non-effective
b. any amount over 1/10th” in a day, up to 1”, was considered 100% effective
c. any amount over 1” in a day, but less than 2”, 50% was considered effective
d. any rainfall amount over 2” in a day was considered non-effective
e. The effective rain for all rain days during the five year period were then added together
and divided by five to obtain the average annual effective rainfall.
7. The landscape coefficient (KL) was calculated using a Kd (plant density factor) of 1.0, Kmc (plant
microclimate factor) of .8, and Ks (plant species factor) of .75 using the following formula
KL = Kd X Ks X Kmc (KL = 1.0 X .8 x.75)
8. The annual water budget for each ‘irrigation meter’ was calculated using the following equation
using the data collected in items 1-7 above:
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 3
{(A)(Eto-Re)(KL)}/DU}{27,154.29} = annual landscape water budget (gallons)
Note: The D.U. utilized for each meter was .40. The average DU collected from the 300 catch can tests
conducted was .39. However, the board agreed to utilize .40 for developing the initial water budgets.
9. The annual water budget for each ‘Combo Meter’ was calculated using a three step process as
follows:
a. Step one - The formula and process described in items 1-8 was utilized to obtain the
landscape irrigation portion of the meters ‘annual water budget’.
b. Step Two - A winter averaging method was utilized to determine the domestic water
budget portion of the meters annual water budget. This process consisted of looking at
the total water use for the month of February for the years 2007 through 2011. This
total amount was then divided by five to obtain the average monthly domestic water
use. The monthly amount was converted to an annual amount by multiplying by twelve
(12) and thus resulting in an ‘annual domestic water budget’ amount.
c. Step Three -The annual landscape and annual domestic water budgets were then added
together to obtain the meters total annual water budget.
10. Once annual water budgets were created for each meter supplying irrigation water, monthly
water budgets, per meter, were developed using the following process:
a. Gross annual Eto (from item #5 above) was utilized by dividing the monthly Eto values,
for the same time, into it. This yielded a percentage number for each month (ie-the
percent of the annual Eto that was attributable to each month).
b. This ‘monthly percentage’ was then multiplied by the annual water budget for each
meter (from items 8,9 and 10 above) to determine the monthly water budget.
WATER BUDGETS
Domestic and Historical Use:
Site
515 PARK GROVE LIMITED
A J S CO dba BURGER KING
ALLEGIANCE BANK
ALLEN SAMUELS DODGE
DR. LOUIS ANDERSON
ORTHODONTIST
BABIN S SEAFOOD
BIO LANDSCAPE/SALTGRASS
BRINKER CORPORATION /
CHILIS
Meter
Number
60455648
60602849
60642895
70090531
0.4
0.4
0.4
0.4
February
Avg. Use
0
34.00K
0
0
Past 5 Years
Average Use
513.60K
575.20K
527.78K
1.10M
Total Annual
Water Budget
273.14K
613.15K
342.62K
840.91K
60172746
60254790
83107822
0.4
0.4
0.4
0
454.00K
0
5.15M
786.40K
338.20K
5.87M
405.93K
319.70K
60561557
0.4
0
618.38K
657.36K
IMUD WATER BUDGET FINAL REPORT 11-13-12
DU
Page 4
Site
CANE ISLAND
CARROLS CORPORATION/TACO
CABANA
CHICK-FIL-A
COLONIAL OAKS OF KATY
COUNTRY PARK PORTRAITS
CROSSPOINT LUTHERAN
CHURCH
CVS PHARMACY #03573-01
DISCOUNT TIRE CO-TXH34
DISTRICT METER
DON MCGILL TOYOTA OF KATY
ECCO PROPERTIES
EQUIPMENT RESOURCE
INTERNAT'L
EQYINVEST TEXAS, LP
EQYINVEST TEXAS, LP
EXXON CO USA - #60115
GALAXY FIREWORKS LLC
GARCIA CHRIS A
HONDA CARS OF KATY
PROVINCIAL WEST POA
JOHN GANNON INC
FIRED UP MAIL STOP #2
KELSEY-SEYBOLD
KINGSLAND DENTAL GROUP
KINGSLAND REAL ESTATE LLC
KINGSLANDS PROVINCIAL ASSC
KINGSTON VILLAS
KINGSTON VILLAS
MCTK PARTNERS INVESTMENT
LP
LUBYS INC
LYONS FORGE INNOVATIONS
IN
MASON CENTER
MASON CREEK BUSINESS PARK
MASON CRK IND PARK CONDO
ASSOC
MASON PARK APTS THE
MICHELSON
Meter
Number
70184908
DU
0.4
February
Avg. Use
0
Past 5 Years
Average Use
119.20K
Total Annual
Water Budget
303.11K
39592351
47027284
60496313
48264562
0.4
0.4
0.4
0.4
0
0
0
5.60K
355.40K
1.45M
189.80K
876.40K
277.29K
865.57K
306.44K
1.70M
70218271
70195004
49693536
70201770
70188859
51434216
0.4
0.4
0.4
0.4
0.4
0.4
0
0
0
0
0
4.00K
1.75M
527.60K
3.27M
1.01M
365.40K
190.93K
460.27K
249.20K
2.01M
1.75M
608.00K
93.45K
51736544
1173857
70055628
49139738
52159165
49104185
70182666
70173627
60417376
31888743
60148332
48172511
51004169
60417378
70066117
70066113
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
3.00K
0
0
103.60K
0
0
0
0
11.20K
0
0
0
0
0
819.00K
460.40K
299.23K
504.00K
562.80K
1.47M
896.00K
0
505.60K
1.25M
318.40K
1.05M
287.60K
6.00K
780.60K
17.30M
8.53M
1.02M
81.45K
395.09K
395.09K
1.67M
572.78K
313.38K
663.49K
2.40M
328.54K
1.03M
502.71K
187.61K
740.38K
17.20M
9.21M
380.25K
60398184
31939654
0.4
0.4
0
0
137.00K
5.14M
143.85K
3.57M
49815728
60681884
49325403
0.4
0.4
0.4
8.20K
248.80K
0
870.60K
724.60K
3.22M
629.72K
617.20K
2.18M
70164939
0.4
0
175.58K
117.45K
70182670
0.4
0
145.33K
87.45K
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 5
Site
MASON PARK PROFESSIONAL
BD
MASON PARK BUSINESS
CENTER
MASON PARK BUSINESS
CONDOS
MASON PARK BUSINESS
CONDOS
Mason Park Prof Plaza 11-B
LTD
MELAGE LP (MASON PARK
MED)
METROPOLITAN TRANSIT
AUTH.
PARK GROVE POA
POINT WEST CENTER
POINT WEST CENTER
PROVINCIAL PROFESSIONAL
PARK
RESOLVED GEOSCIENCE INC
SERVICE KING PAINT & BODY
LLC
TACO BELL ACCTS PAYABLE
THE LEARNING EXPERIENCE
THE REALTY ASSOCIATES FUND
1X
THE REALTY ASSOCIATES FUND
1X
VIDA LOCA MEXICAN BAR &
GRILL
VILLAS OF PARK GROVE APTS
VINEYARDS APARTMENTS
VINEYARDS APARTMENTS
WALGREENS #4696
WELLS FARGO BANK
Meter
Number
DU
February
Avg. Use
Past 5 Years
Average Use
Total Annual
Water Budget
70008928
0.4
0
108.92K
75.45K
51020869
0.4
6.00K
748.00K
1.47M
51434215
0.4
3.50K
753.00K
1.82M
51736546
0.4
2.50K
1.74M
1.57M
60321008
0.4
24.60K
97.60K
600.70K
70217696
0.4
0
212.60K
2.87M
70055642
60443134
70084883
70075347
0.4
0.4
0.4
0.4
6.00K
0
0
0
571.16K
107.20K
139.80K
3.28M
364.19K
353.51K
287.80K
2.27M
49669755
51434218
0.4
0.4
0
3.50K
427.58K
140.00K
345.23K
87.45K
60259441
48194878
60506571
0.4
0.4
0.4
0
0
80.20K
304.20K
213.80K
815.16K
162.69K
175.93K
548.66K
70117337
0.4
0
1.67M
1.97M
70236038
0.4
0
3.62M
4.28M
70236039
70124146
70110724
70124144
70045449
38038825
0.4
0.4
0.4
0.4
0.4
0.4
143.60K
0
0
0
0
0
2.11M
1.79M
4.75M
4.34M
280.00K
161.00K
2.16M
1.94M
3.86M
3.86M
542.79K
69.63K
January – June:
Meter
Number
Site
Total Annual
Water Budget
Mar
Apr
May
515 PARK GROVE LIMITED
60455648
273.14K
14.80K
Jan
15.43K
22.15K
27.15K
32.48K
34.42K
A J S CO dba BURGER KING
60602849
613.15K
45.12K
45.59K
50.64K
54.39K
58.39K
59.85K
IMUD WATER BUDGET FINAL REPORT 11-13-12
Feb
Jun
Page 6
Meter
Number
Total Annual
Water Budget
Jan
Feb
Mar
Apr
May
Jun
ALLEGIANCE BANK
60642895
342.62K
18.57K
19.36K
27.79K
34.06K
40.74K
43.17K
ALLEN SAMUELS DODGE
DR. LOUIS ANDERSON
ORTHODONTIST
70090531
840.91K
45.58K
47.51K
68.20K
83.59K
99.98K
105.95K
60172746
423.60K
22.96K
23.93K
34.35K
42.11K
50.37K
53.37K
BABIN S SEAFOOD
BIO
LANDSCAPE/SALTGRASS
BRINKER CORPORATION /
CHILIS
60254790
5.85M
476.00K
476.93K
486.92K
494.35K
502.26K
505.15K
83107822
319.70K
17.33K
18.06K
25.93K
31.78K
38.01K
40.28K
60561557
657.36K
35.63K
37.14K
53.31K
65.34K
78.16K
82.83K
CANE ISLAND
CARROLS
CORPORATION/TACO
CABANA
70184908
303.11K
16.43K
17.13K
24.58K
30.13K
36.04K
38.19K
39592351
277.29K
15.03K
15.67K
22.49K
27.56K
32.97K
34.94K
CHICK-FIL-A
47027284
865.57K
46.91K
48.90K
70.20K
86.04K
102.92K
109.06K
COLONIAL OAKS OF KATY
COUNTRY PARK
PORTRAITS
CROSSPOINT LUTHERAN
CHURCH
CVS PHARMACY #0357301
60496313
239.24K
12.97K
13.52K
19.40K
23.78K
28.45K
30.14K
48264562
1.77M
97.88K
101.80K
143.69K
174.85K
208.05K
220.14K
70218271
460.27K
24.95K
26.01K
37.33K
45.75K
54.73K
57.99K
70195004
249.20K
13.51K
14.08K
20.21K
24.77K
29.63K
31.40K
DISCOUNT TIRE CO-TXH34
49693536
2.01M
108.90K
113.52K
162.95K
199.72K
238.90K
253.17K
DISTRICT METER
DON MCGILL TOYOTA OF
KATY
70201770
1.75M
94.87K
98.89K
141.95K
173.98K
208.12K
220.54K
70188859
608.00K
32.95K
34.35K
49.31K
60.44K
72.29K
76.61K
ECCO PROPERTIES
EQUIPMENT RESOURCE
INTERNAT'L
51434216
93.45K
6.46K
6.57K
7.69K
8.52K
9.40K
9.73K
51736544
81.45K
5.46K
5.57K
6.69K
7.52K
8.40K
8.73K
EQYINVEST TEXAS, LP
1173857
395.09K
21.41K
22.32K
32.04K
39.27K
46.98K
49.78K
EQYINVEST TEXAS, LP
70055628
395.09K
21.41K
22.32K
32.04K
39.27K
46.98K
49.78K
EXXON CO USA - #60115
49139738
1.67M
126.87K
127.86K
138.42K
146.28K
154.65K
157.70K
GALAXY FIREWORKS LLC
52159165
572.78K
31.04K
32.36K
46.45K
56.93K
68.10K
72.17K
GARCIA CHRIS A
49104185
313.38K
16.99K
17.71K
25.42K
31.15K
37.26K
39.49K
HONDA CARS OF KATY
70182666
663.49K
35.96K
37.49K
53.81K
65.95K
78.89K
83.60K
PROVINCIAL WEST POA
70173627
2.40M
130.32K
135.85K
195.00K
239.00K
285.88K
302.95K
JOHN GANNON INC
60417376
328.54K
21.72K
22.17K
26.94K
30.50K
34.28K
35.66K
FIRED UP MAIL STOP #2
31888743
1.03M
55.58K
57.94K
83.17K
101.93K
121.93K
129.21K
KELSEY-SEYBOLD
KINGSLAND DENTAL
GROUP
KINGSLAND REAL ESTATE
LLC
KINGSLANDS PROVINCIAL
ASSC
60148332
502.71K
27.25K
28.40K
40.77K
49.97K
59.77K
63.34K
48172511
187.61K
10.17K
10.60K
15.21K
18.65K
22.31K
23.64K
51004169
740.38K
40.13K
41.83K
60.04K
73.59K
88.03K
93.29K
60417378
7.37M
399.68K
416.64K
598.04K
732.99K
876.78K
929.14K
KINGSTON VILLAS
70066117
13.52M
1.02M
1.03M
1.12M
1.19M
1.26M
1.28M
Site
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 7
Meter
Number
Total Annual
Water Budget
Jan
Feb
Mar
Apr
May
Jun
KINGSTON VILLAS
MCTK PARTNERS
INVESTMENT LP
70066113
5.91M
481.01K
481.88K
491.24K
498.20K
505.61K
508.31K
60398184
45.45K
2.46K
2.57K
3.69K
4.52K
5.40K
5.73K
LUBYS INC
LYONS FORGE
INNOVATIONS IN
31939654
583.08K
31.60K
32.94K
47.29K
57.96K
69.33K
73.47K
49815728
728.12K
42.33K
43.78K
59.27K
70.79K
83.07K
87.54K
MASON CENTER
MASON CREEK BUSINESS
PARK
MASON CRK IND PARK
CONDO ASSOC
MASON PARK APTS THE
MICHELSON
MASON PARK
PROFESSIONAL BD
MASON PARK BUSINESS
CENTER
MASON PARK BUSINESS
CONDOS
MASON PARK BUSINESS
CONDOS
Mason Park Prof Plaza 11B LTD
MELAGE LP (MASON PARK
MED)
METROPOLITAN TRANSIT
AUTH.
60681884
3.60M
282.25K
283.67K
298.86K
310.15K
322.19K
326.57K
49325403
2.18M
117.89K
122.89K
176.40K
216.21K
258.62K
274.06K
70164939
45.45K
2.46K
2.57K
3.69K
4.52K
5.40K
5.73K
70182670
45.45K
2.46K
2.57K
3.69K
4.52K
5.40K
5.73K
70008928
63.85K
2.46K
2.57K
3.69K
4.52K
5.40K
5.73K
51020869
1.25M
69.62K
72.32K
101.20K
122.68K
145.57K
153.91K
51434215
1.64M
90.33K
94.01K
133.42K
162.74K
193.97K
205.35K
51736546
1.60M
87.44K
91.04K
129.59K
158.27K
188.83K
199.95K
60321008
895.90K
57.16K
58.54K
73.32K
84.31K
96.02K
100.29K
70217696
2.80M
151.72K
158.16K
227.02K
278.25K
332.84K
352.71K
70055642
436.19K
25.74K
26.58K
35.54K
42.20K
49.30K
51.89K
PARK GROVE POA
60443134
353.51K
19.16K
19.97K
28.67K
35.14K
42.03K
44.54K
POINT WEST CENTER
70084883
287.80K
15.60K
16.26K
23.34K
28.61K
34.22K
36.26K
POINT WEST CENTER
PROVINCIAL
PROFESSIONAL PARK
RESOLVED GEOSCIENCE
INC
SERVICE KING PAINT &
BODY LLC
70075347
2.27M
122.94K
128.16K
183.95K
225.46K
269.69K
285.80K
49669755
345.23K
18.71K
19.51K
28.00K
34.32K
41.05K
43.50K
51434218
87.45K
5.96K
6.07K
7.19K
8.02K
8.90K
9.23K
60259441
162.69K
8.82K
9.19K
13.19K
16.17K
19.34K
20.50K
TACO BELL ACCTS PAYABLE
THE LEARNING
EXPERIENCE
THE REALTY ASSOCIATES
FUND 1X
THE REALTY ASSOCIATES
FUND 1X
VIDA LOCA MEXICAN BAR
& GRILL
VILLAS OF PARK GROVE
APTS
48194878
175.93K
9.54K
9.94K
14.27K
17.49K
20.92K
22.17K
60506571
1.51M
109.94K
111.20K
124.70K
134.74K
145.44K
149.33K
70117337
1.97M
106.97K
111.51K
160.06K
196.18K
234.66K
248.68K
70236038
4.28M
231.88K
241.71K
346.96K
425.25K
508.67K
539.05K
70236039
2.16M
167.18K
168.18K
178.88K
186.84K
195.33K
198.42K
70124146
1.94M
105.03K
109.48K
157.15K
192.61K
230.40K
244.16K
VINEYARDS APARTMENTS
70110724
3.86M
209.22K
218.10K
313.06K
383.70K
458.98K
486.38K
Site
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 8
Meter
Number
Total Annual
Water Budget
Jan
Feb
Mar
Apr
May
Jun
VINEYARDS APARTMENTS
70124144
3.86M
209.22K
218.10K
313.06K
383.70K
458.98K
486.38K
WALGREENS #4696
70045449
542.79K
29.42K
30.67K
44.02K
53.95K
64.54K
68.39K
WELLS FARGO BANK
38038825
69.63K
3.77K
3.93K
5.65K
6.92K
8.28K
8.77K
Jul
Aug
Sep
Oct
Nov
Dec
Site
July – December:
Meter
Number
Site
Total Annual
Water Budget
515 PARK GROVE LIMITED
60455648
273.14K
31.11K
32.80K
25.89K
17.92K
12.81K
6.17K
A J S CO dba BURGER KING
60602849
613.15K
57.37K
58.64K
53.45K
47.46K
43.62K
38.64K
ALLEGIANCE BANK
60642895
342.62K
39.02K
41.15K
32.48K
22.48K
16.07K
7.74K
ALLEN SAMUELS DODGE
DR. LOUIS ANDERSON
ORTHODONTIST
70090531
840.91K
95.78K
100.99K
79.72K
55.16K
39.44K
19.00K
60172746
423.60K
48.25K
50.87K
40.16K
27.79K
19.87K
9.57K
BABIN S SEAFOOD
BIO
LANDSCAPE/SALTGRASS
BRINKER CORPORATION /
CHILIS
60254790
5.85M
500.24K
502.75K
492.48K
480.63K
473.04K
463.17K
83107822
319.70K
36.41K
38.40K
30.31K
20.97K
14.99K
7.23K
60561557
657.36K
74.87K
78.95K
62.32K
43.12K
30.83K
14.86K
CANE ISLAND
CARROLS
CORPORATION/TACO
CABANA
70184908
303.11K
34.52K
36.40K
28.73K
19.88K
14.22K
6.85K
39592351
277.29K
31.58K
33.30K
26.29K
18.19K
13.00K
6.27K
CHICK-FIL-A
47027284
865.57K
98.59K
103.95K
82.06K
56.78K
40.60K
19.56K
COLONIAL OAKS OF KATY
COUNTRY PARK
PORTRAITS
CROSSPOINT LUTHERAN
CHURCH
CVS PHARMACY #0357301
60496313
239.24K
27.25K
28.73K
22.68K
15.69K
11.22K
5.41K
48264562
1.77M
199.53K
210.09K
167.01K
117.30K
85.46K
44.08K
70218271
460.27K
52.43K
55.28K
43.63K
30.19K
21.59K
10.40K
70195004
249.20K
28.38K
29.93K
23.62K
16.35K
11.69K
5.63K
DISCOUNT TIRE CO-TXH34
49693536
2.01M
228.85K
241.31K
190.48K
131.81K
94.23K
45.41K
DISTRICT METER
DON MCGILL TOYOTA OF
KATY
70201770
1.75M
199.36K
210.22K
165.93K
114.82K
82.09K
39.56K
70188859
608.00K
69.25K
73.02K
57.64K
39.89K
28.52K
13.74K
ECCO PROPERTIES
EQUIPMENT RESOURCE
INTERNAT'L
51434216
93.45K
9.18K
9.46K
8.31K
6.98K
6.13K
5.03K
51736544
81.45K
8.18K
8.46K
7.31K
5.98K
5.13K
4.03K
EQYINVEST TEXAS, LP
1173857
395.09K
45.00K
47.45K
37.45K
25.92K
18.53K
8.93K
EQYINVEST TEXAS, LP
70055628
395.09K
45.00K
47.45K
37.45K
25.92K
18.53K
8.93K
EXXON CO USA - #60115
49139738
1.67M
152.50K
155.16K
144.30K
131.76K
123.74K
113.30K
GALAXY FIREWORKS LLC
52159165
572.78K
65.24K
68.79K
54.30K
37.57K
26.86K
12.94K
GARCIA CHRIS A
49104185
313.38K
35.69K
37.64K
29.71K
20.56K
14.70K
7.08K
HONDA CARS OF KATY
70182666
663.49K
75.57K
79.68K
62.90K
43.52K
31.12K
14.99K
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 9
Meter
Number
Total Annual
Water Budget
Jul
Aug
Sep
Oct
Nov
Dec
PROVINCIAL WEST POA
70173627
2.40M
273.86K
288.77K
227.94K
157.73K
112.77K
54.34K
JOHN GANNON INC
60417376
328.54K
33.31K
34.52K
29.60K
23.94K
20.31K
15.59K
FIRED UP MAIL STOP #2
31888743
1.03M
116.80K
123.16K
97.21K
67.27K
48.09K
23.18K
KELSEY-SEYBOLD
KINGSLAND DENTAL
GROUP
KINGSLAND REAL ESTATE
LLC
KINGSLANDS PROVINCIAL
ASSC
60148332
502.71K
57.26K
60.38K
47.66K
32.98K
23.58K
11.36K
48172511
187.61K
21.37K
22.53K
17.79K
12.31K
8.80K
4.24K
51004169
740.38K
84.33K
88.92K
70.19K
48.57K
34.72K
16.73K
60417378
7.37M
839.91K
885.63K
699.06K
483.74K
345.85K
166.65K
KINGSTON VILLAS
70066117
13.52M
1.24M
1.26M
1.17M
1.06M
991.92K
902.33K
KINGSTON VILLAS
MCTK PARTNERS
INVESTMENT LP
70066113
5.91M
503.71K
506.07K
496.45K
485.34K
478.23K
468.99K
60398184
45.45K
5.18K
5.46K
4.31K
2.98K
2.13K
1.03K
LUBYS INC
LYONS FORGE
INNOVATIONS IN
31939654
583.08K
66.41K
70.03K
55.28K
38.25K
27.35K
13.18K
49815728
728.12K
79.93K
83.83K
67.90K
49.51K
37.73K
22.43K
MASON CENTER
MASON CREEK BUSINESS
PARK
MASON CRK IND PARK
CONDO ASSOC
MASON PARK APTS THE
MICHELSON
MASON PARK
PROFESSIONAL BD
MASON PARK BUSINESS
CENTER
MASON PARK BUSINESS
CONDOS
MASON PARK BUSINESS
CONDOS
Mason Park Prof Plaza 11B LTD
MELAGE LP (MASON PARK
MED)
METROPOLITAN TRANSIT
AUTH.
60681884
3.60M
319.10K
322.93K
307.31K
289.29K
277.75K
262.75K
49325403
2.18M
247.75K
261.23K
206.20K
142.69K
102.01K
49.16K
70164939
45.45K
5.18K
5.46K
4.31K
2.98K
2.13K
1.03K
70182670
45.45K
5.18K
5.46K
4.31K
2.98K
2.13K
1.03K
70008928
63.85K
5.18K
5.46K
4.31K
2.98K
2.13K
1.03K
51020869
1.25M
139.70K
146.98K
117.28K
83.01K
61.05K
32.53K
51434215
1.64M
185.96K
195.90K
155.37K
108.59K
78.63K
39.70K
51736546
1.60M
180.99K
190.71K
151.06K
105.30K
76.00K
37.92K
60321008
895.90K
93.02K
96.74K
81.55K
64.01K
52.77K
38.18K
70217696
2.80M
318.84K
336.20K
265.37K
183.63K
131.29K
63.26K
70055642
436.19K
47.48K
49.74K
40.52K
29.89K
23.08K
14.23K
PARK GROVE POA
60443134
353.51K
40.26K
42.46K
33.51K
23.19K
16.58K
7.99K
POINT WEST CENTER
70084883
287.80K
32.78K
34.56K
27.28K
18.88K
13.50K
6.50K
POINT WEST CENTER
PROVINCIAL
PROFESSIONAL PARK
RESOLVED GEOSCIENCE
INC
SERVICE KING PAINT &
BODY LLC
70075347
2.27M
258.35K
272.41K
215.03K
148.80K
106.38K
51.26K
49669755
345.23K
39.32K
41.46K
32.73K
22.65K
16.19K
7.80K
51434218
87.45K
8.68K
8.96K
7.81K
6.48K
5.63K
4.53K
60259441
162.69K
18.53K
19.54K
15.42K
10.67K
7.63K
3.68K
Site
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 10
Meter
Number
Total Annual
Water Budget
Jul
Aug
Sep
Oct
Nov
Dec
TACO BELL ACCTS PAYABLE
THE LEARNING
EXPERIENCE
THE REALTY ASSOCIATES
FUND 1X
THE REALTY ASSOCIATES
FUND 1X
VIDA LOCA MEXICAN BAR
& GRILL
VILLAS OF PARK GROVE
APTS
48194878
175.93K
20.04K
21.13K
16.68K
11.54K
8.25K
3.98K
60506571
1.51M
142.69K
146.09K
132.21K
116.19K
105.93K
92.60K
70117337
1.97M
224.80K
237.03K
187.10K
129.47K
92.56K
44.60K
70236038
4.28M
487.28K
513.80K
405.57K
280.65K
200.64K
96.69K
70236039
2.16M
193.15K
195.85K
184.84K
172.14K
164.00K
153.43K
70124146
1.94M
220.71K
232.72K
183.70K
127.12K
90.88K
43.79K
VINEYARDS APARTMENTS
70110724
3.86M
439.67K
463.61K
365.95K
253.23K
181.04K
87.24K
VINEYARDS APARTMENTS
70124144
3.86M
439.67K
463.61K
365.95K
253.23K
181.04K
87.24K
WALGREENS #4696
70045449
542.79K
61.82K
65.19K
51.46K
35.61K
25.46K
12.27K
WELLS FARGO BANK
38038825
69.63K
7.93K
8.36K
6.60K
4.57K
3.27K
1.57K
Site
Water Budget Concerns:
Comparing the 5 year historical water use, for each meter, with the meter’s calculated budget, about
40% of the water meters are using less water than allowed by their water budgets. Masuen Consulting
investigated the historical water meter data for these sites and can account for nearly all of this 40%
with the following explanations:
1. Several sites had no irrigation system or very small irrigation systems in comparison to their
total area.
2. Several sites had large portions of the system that were not operational. This was normally
a result of poor maintenance.
3. Several water meters show extended periods of zero flow through their five year histories.
At times the zero flows were erratic and sometimes occurred during irrigation months.
4. Some combination meters had very had February use. This inflates their overall water
budget.
In many cases, if a site is experiencing one, or more, of the above listed issues, the effects can be seen
with problems such as dead or non-uniform landscape health. Furthermore, because systems and
schedules can be modified by the owner at any time, it is nearly impossible to account for all flow issues
with a high degree of certainty. After additional investigation, Masuen Consulting is confident that the
water budgets shown above are accurate and that all cases of customers using less than their assigned
budget can be explained through the above explanations.
DATA:
See attached CD with spreadsheet containing project data
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 11
RECOMMENDATIONS FOR IMPLEMENTING THESE WATER BUDGETS:
In order to implement these water budgets into a rate order, Masuen Consulting recommends the
following tasks be addressed.
1. Develop a process for creating a water budget for all future ‘irrigation’ and ‘combo’ meters
installed in IMUD.
2. Provide public outreach and education on the water budget process, how it affects their
water bill, and what they can do to minimize their water use. These would include
homeowners, business owners, and industry professionals such as landscape and irrigation
contractors, landscape architects, engineers, etc.
3. Develop an IMUD irrigation and landscape specification to be adhered to for all future
project/site modifications, improvements, or new construction.
4. Create a program for the submittal and approval of irrigation and landscape plans to the
district, to include site inspections to verify approved plans were properly installed.
5. Develop a rate structure based on these water budgets consisting of a base rate and a
‘punitive’ rate for those utilizing more than the base rate.
6. Direct ‘punitive rate’ monies, or at least some portion of them, to the educational effort
listed in item #2 above.
7. Incrementally increase the annual water budgets by increasing the DU utilized in the water
budget calculation, as follows:
a. Initial water budgets for first three years (2013, 2014, and 2015) will use a DU of .40
b. For years 2016, 2017 use a DU of .50
c. 2018, 2019, and 2020 use a DU of .60
d. From 2021 on, use a DU of .70
8. The district should create and manage an IMUD website to provide information to its rate
payers on water, drought, water budgets, etc. This website should include a copy of this
report, our previously developed Landscape and Irrigation water conservation manual, and
other outreach and educational information the board may deem appropriate.
GLOSSARY:
Area [A] - Area of the landscape in acres
Combination Meter (combo meter) – A water meter that provides water for both domestic water
needs and landscape irrigation water needs.
Density factor [Kd] - Coefficient used to modify KL to reflect the water use of a particular plant or
group of plants with reference to the density of the plant material. Kd ranges from 0.5 for a sparse
planting to 1.3 for very dense plantings and averages 1.0. Kd for turf.
Distribution uniformity (DU) - the measure of the uniformity of applied irrigation water over an
area.
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 12
Domestic Water Use (Domestic water Budget) – The amount of water supplied through a
meter for domestic needs which was determined using a four month winter averaging method
for the months of November, December, January, and February.
Effective rainfall (Re) - the amount of total rain that is actually stored in the root zone. Some
rainwater does not reach the soil profile because it is held in mulch or turf thatch or because it runs
off. Some water may percolate below the root zone and be lost, depending upon the intensity and
duration of the rain event and the water content of the soil prior to the rain event.
Efficiency, irrigation system - the percent of irrigation water that is beneficially used for plant
growth.
Evapotranspiration - Combination of water transpired from vegetation and evaporated from
the soil and plant surfaces.
historical evapotranspiration - A multiple-year average of recorded historical reference ETo
data from a weather station or evaporative pan in a given geographic location. This value is
typically a monthly average of the specific month in a given multi-year time frame. This value,
when corrected for plant species characteristics, can be used as a baseline to evaluate the
expected water needs of a landscape planting in that geographic area.
reference evapotranspiration (Eto) - Rate of evapotranspiration from an extensive surface of
warm-season grass cover of uniform height of 12 cm, actively growing, completely shading the
ground, and not short of water.
Irrigation audit - A procedure of collecting and presenting information concerning the uniformity of
application, precipitation rate, and general condition of an irrigation system and its components.
Irrigation system efficiency - Percent of irrigation water supplied to the landscape that is
beneficially used for plant growth; that is, that contributes directly to the plant water requirement.
Irrigation water budget - Volume of irrigation water required to maintain a functional, healthy
landscape with the minimum amount of water. This volume of irrigation water is equivalent to the
base irrigation water requirement.
Irrigation Meter – A water meter that only supplies water for landscape irrigation
Landscape coefficient [KL] - Coefficient used to modify reference( ETo) which includes species
factor, density factor and microclimate factor.
Landscape Water Budget – The amount of water allotted to irrigate the landscape supplied by a
specific water meter. The budget is calculated using the formula {(A)(Eto-Re)(KL)}/DU}{27,154.29} and
can be given in terms of annual or monthly.
Microclimate factor [Kmc] - Factor or coefficient used to modify KL to reflect the microclimate of
an area. Kmc ranges from 0.5 to 1.4
Precipitation rate - Rate at which a sprinkler system applies irrigation water; also known as the
application rate.
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 13
Rain amount - Actual amount of rainfall during a period of time. See also historical and effective
rainfall.
Rainfall, historical - A multiple year average of recorded rain from a weather station in a given
geographic location. This value is typically a monthly average of the specific month in a given
multi-year time frame.
Service connection – ‘water meter’ - The terminal end of a service connection from the public
potable water system, i.e. where the water purveyor may lose jurisdiction and sanitary control over
the water at its point of delivery to the consumer’s water system.
Species Factor (Ks) – A factor or coefficient used to modify KL to reflect the landscape plantings for
the area being studied/irrigated. Ks ranges from .5 to 1.2
IMUD WATER BUDGET FINAL REPORT 11-13-12
Page 14