Wallsburg Water Quality Study
Water Quality Analysis of Main Creek, Little Hobble Creek &
Spring Creek
Water Quality Study
We have been doing this a long
time!
History of Monitoring on Main Creek
at US189
Is it really that bad?
Compare Main Creek to Other Deer
Creek Tributaries
Where is it coming from?
Specific Monitoring Near Wallsburg
What is it you are going to do?
Discuss WQ Management Plan
History of Monitoring on Main Creek
Oct-74
Oct-75
Sep-76
Oct-77
Oct-78
Oct-79
Oct-80
Oct-81
Oct-82
Oct-83
Oct-84
Oct-85
Oct-86
Oct-87
Oct-88
Oct-89
Oct-90
Oct-91
Oct-92
Oct-93
Oct-94
Oct-95
Oct-96
Oct-97
Oct-98
Oct-99
Oct-00
Oct-01
Oct-02
Oct-03
Oct-04
Oct-05
Oct-06
Oct-07
Oct-08
Total Phosphorus (mg/l)
Main Creek above DC Reservoir Data Set
0.5
Orthophosphate
0.45
Phosphorus as P
0.4
0.35
Linear (Phosphorus as P)
0.3
0.25
0.2
0.15
0.1
0.05
0
Date
Historical Water Quality Analysis
Deer Creek Tributaries
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
16
0.07
977
0.04
511
68.8
1,005,716
13
0.05
523
0.03
324
19
218,565
14
0.05
587
0.03
349
15.8
198,017
8
0.03
251
0.01
100
9.6
71,441
8
0.05
324
0.01
56
N/A
N/A
8
0.04
194
0.03
141
21.4
111,289
17
0.054
765
0.022
332
27
598,638
23
0.07
2339
0.03
562
47
2,234,868
9
0.05
439
0.03
131
24.6
290,895
18
24
0.04
0.06
682
3,175
0.03
0.04
126
905
32
66
898,695 7,567,081
43
0.024
1,416
0.011
502
13.1
423,365
44
0.02
933
0.01
268
5.4
213,919
41
0.02
809
0
81
6.5
236,542
33
0.02
718
0
85
9.28
274,567
34
0.02
743
0.01
422
0
0
34
0.01
155
0
0
6.46
198,515
52
0.021
795
0
100
13.2
549,453
54
0.02
958
0
77
12
742,117
37
0.01
252
0
41
11.9
303,457
43
0.01
435
0
111
8.7
316,901
188
200
0.04
0.04
6,160
7,135
0.04
0.01
4,328
2,114
4.6
15.63
772,618 2,779,700
186
0.03
5,066
0
293
0
0
247
0.041
7,767
0
0
19.85
4,373,323
304
0.035
7382
0.006
2,042
33.8
8,536,044
Main Creek abv Deer Creek
Weighted Average Flow (cfs)
TP Weighted Average (mg/l)
TP Annual Load (kg/yr)
DTP Weighted Average (mg/l)
DTP Annual Load (kg/yr)
TSS Weighted Average (mg/l)
TSS Annual Load (kg/yr)
Snake Creek above Deer Creek
Weighted Average Flow (cfs)
TP Weighted Average (mg/l)
TP Annual Load (kg/yr)
DTP Weighted Average (mg/l)
DTP Annual Load (kg/yr)
TSS Weighted Average (mg/l)
TSS Annual Load (kg/yr)
55
0.03
1,218
0.03
1,013
6
319,689
Provo River abv Deer Creek
Weighted Average Flow (cfs)
TP Weighted Average (mg/l)
TP Annual Load (kg/yr)
DTP Weighted Average (mg/l)
DTP Annual Load (kg/yr)
TSS Weighted Average (mg/l)
TSS Annual Load (kg/yr)
319
205
0.03
0.03
18,551
5,849
0.01
0.02
5,253
4,475
27.6
5.5
7,856,242 1,010,736
406
257
355
412
0.02
0.01
0.01
0.03
5,300
2,121
3,029
8,809
0.01
0
0
0.01
1460
0
402
4,748
15
10.6
6.8
9.9
5,715,132 2,421,951 2,013,179 3,189,684
2008 & 2009 Total Phosphorus Loads
Tributary
Provo
Snake
Daniels
Main
Total
TMDL
Target
Loads
11,136
2,308
645
1,210
15,299
Avg. Flow
412
55
8
24
499
% Flow
83%
11%
2%
5%
100%
2008 TP
Load
3,029
435
176
682
4,322
2009 TP
Load
8,809
1218
201
3,175
13,403
2008 & 2009 Total Phosphorus Loads
Snake Creek vs. Main Creek
2008 TP Loads
250
Snake Creek
80
Main Creek
70
Snake Creek Flow
60
40
100
30
20
50
10
Sep-08
Aug-08
Jul-08
Jun-08
May-08
Apr-08
Mar-08
Nov-07
Oct-07
Sep-07
0
Aug-07
0
Flow (cfs)
50
Main Creek Flow
150
Jul-07
TP Load (kg)
200
Total Suspended Solids
Main Creek & Snake Creek
TSS Loads
3,000,000
2,500,000
2,000,000
Main Creek TSS Load
1,500,000
Snake Creek TSS Load
1,000,000
500,000
0
2004
2005
2006
2007
2008
2009
Specific Monitoring In Wallsburg
Main Creek at
Round Valley
Road Xing
Solids,
Total
Ortho P Suspended
Flow
(DTP)
(TSS) Total P
1985 - 2005 Average
2009 - 2010 Average
Spring Creek
at Road Xing
Below
Little
Hobble Creek
Wallsburg
at2009
Round
Valley
- 2010
Average
Road
1985 - 1988 Average
2009-2010 Average
9.0
1.4
10.6
7.6
0.01
0.05
Main Creek
at Roundy
Lane
2009 - 2010 Average
2.26
DTP
T. Sus.
Solids,
Solids
Total Total P
0.045
0.86
Ortho P / Suspended
Flow
DTP
9.5
1.6
0.03
0.04
0.046
(TSS) Total P
18.8
12.0
1.53
DTP
T. Sus.
Solids
Total P
0.041
11.97
0.051
0.03
0.04
Spring Creek in
Wallsburg at
Roundy Lane
Flow
Flow
0.05
0.04
1985 / 1986 Average
2009/ 2010 Average
Solids, Total
Suspended
Flow Ortho P (DTP)
(TSS)
18.8
2.3
0.08
12.4
1.8
0.05
Total P
0.09
0.06
Where Do We Go From Here?
Gather additional data and perform
analysis
Nutrients, BacT/E Coli, Solids
Look at Stream Segments
Identify reaches contributing pollution.
Compare WQ results with:
 Stream Visual Assessment Protocol
(SVAP2) Inventory
 USFS Range Assessment
 NRCS Hydrology Report
 Wildlife Assessment
Where Do We Go From Here?
Identify flexible Management Solutions
to improve water quality
 Changes in land use (e.g., land use
planning or zoning).
 Changes in management practices (e.g.,
Best Management Practices [BMPs]).
 Monitoring programs.
 Educational programs.
 Restoration plans.
Questions?
Alane Boyd, P.E.
 Desert Rose Environmental
 alane@desertroseenv.com
 801-580-9692