2011 shell creek watershed research group
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2011 Shell Creek Watershed Research Group. Advisors: Mark Seier and Karen Malmkar - PowerPoint PPT PresentationTRANSCRIPT
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2011 Shell Creek Watershed
Research Group
Advisors: Mark Seier and Karen Malmkar
Researchers: Audrey Wondercheck, Mark O’Brien,
Alisha Dunlap, Caitlin Bennett, Joan O’Brien, Lila Wondercheck,
Ciera Afrank, Kendra Nelson, Liz Backhaus, Darienne
Pokorny, Jason Kaufman, Demi Edgell, Jacob Haase, John
O’Brien, Brock Donelson, Billy O’Brien, Megan Nelson, Brooke
Pieke, Alex Wiese
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(with Township-Range Labels)
Shell Creek and Loseke-Taylor Creek Watersheds
Lower Platte North Natural Resources District
6South Branch
North Branch
3
6Above Newman Grove
Below Newman Grove
4
6
Below Lindsay
West Platte Center
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W.Q.I.
• The Water Quality Index was developed by the National Sanitation Foundation as a standard system to compare different bodies of water.
• To determine the WQI, a series of nine tests were performed. These tests were: dissolved oxygen, fecal coliform, pH, Biological Oxygen Demand (BOD), temperature, total phosphate, nitrates, turbidity, and total solids. We also did a water discharge test which we use to measure the flow of the creek in cubic feet per second.
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• After the tests are completed, the WQI for each section of the creek can be computed.
• To formulate the WQI, we first computed Q-values.
• We multiply this number by a weighting factor, which provides a measure of the relative importance of each test to overall water quality.
• The water quality index ranges from zero to 100.
- 0 - 25 is very bad - 25 - 50 is bad - 50 - 70 is medium - 70 - 90 is good- 90 - 100 is excellent
• The bio-indicator tests are not part of the W.Q.I., but do give us a water quality rating.
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Sample W.Q.I. Curve Chart
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Sample W.Q.I. Form
Test Results Q-valueWeighting
FactorT o t a l
DO % sat. 0.17 Fecal Coliform col/100 mL 0.16
pH units 0.11 BOD mg/L 0.11
Temperature change in C 0.1 Total Phosphate mg/L 0.1
Nitrates mg/L 0.1 Turbidity JTU 0.08
Total Solids mg/L 0.07
Overall Water Quality Index ___
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May June July August0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
2011 Precipitation
Rainfall
Inch
es
10
May 26,27
June 23 July 20 August 4
6.3
6.6
6.9
7.2
7.5
7.8
8.1
8.4
pH
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
pH
Level
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May 26, 27 June 23 July 20 August 4
-1
-0.5
0
0.5
1
1.5
2
2.5
3
3.5
Change in Water Temperature
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
Deg
rees C
elc
ius
The higher the change, the worse the water quality.
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May 26, 27 June 23 July 20 August 40
500
1000
1500
2000
2500Total Solids
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
mg
/L
The higher the concentration, the worse the water quality.
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Fecal Coliform
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May 26, 27
June 23 July 20 August 40
500
1,000
1,500
2,000
2,500
3,000
3,500Fecal Coliform
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
colo
nie
s/1
00
mL
15
2003 2004 2005 2006 2007 2008 2009 2010 20110
200
400
600
800
1000
1200
1400
1600Fecal Coliform
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
colo
nie
s/1
00
mL
In 2006 Site 1- 21,418Site 5- 17,800
In 2010Site 1- 11,387Site 3- 6,837Site 6- 2,313
16May 26, 27 June 23 July 20 August 4
0
20
40
60
80
100
120Flow
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
Cu
bic
feet
per
secon
d*Flow was not measured for May Sites 3,4,5,6
17May 26, 27 June 23 July 10 August 4
0
200
400
600
800
1000
1200Turbidity
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
JTU
's
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May 26, 27 June 23 July 20 August 40
10
20
30
40
50
60
70
80
90
100
Dissolved Oxygen
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
% S
atu
rati
on
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May 26, 27 June 23 July 20 August 40
1
2
3
4
5
65 Day Biological Oxygen Demand
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
pp
m
The higher the change, the worse the water quality.
20
May 26, 27 June 23 July 20 August 40
5
10
15
20
25
30
35
40
45
50
Nitrates
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
pp
m
21
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
0
10
20
30
40
50
60
Nitrates
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
pp
m
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May 26, 27 June 23 July 20 August 40
0.5
1
1.5
2
2.5
3
3.5
Phosphates
Site 1
Site 2
Site 3
Site 4
Site 6
Site 5
Date
pp
m
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Site 1 Site 2 Site 3 Site 4 Site 6 Site 545
50
55
60
65
70
WQI Averages by Site
2003 Averages 2004 Averages 2005 Averages 2006 Averages2007 Averages 2008 Averages 2009 Averages 2010 Average2011 Average
WQ
I Medium
Bad
Good
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2003 2004 2005 2006 2007 2008 2009 2010 201145
50
55
60
65
70
Total WQI Averages by Year
WQI
WQ
I
Good
Bad
Medium
25Total Rainfall Inches
Discharge CFS Nitrates ppm pH 0
5
10
15
20
25
302003 - 2011 Chemical Test Average Comparisons
2003 Averages
2004 Averages
2005 Averages
2006 Averages
2007 Averages
2008 Averages
2009 Averages
2010 Average
2011 Average
26Phosphates ppm B.O.D. ppm Change in Temp. Celcius
0
0.5
1
1.5
2
2.5
3
2003 - 2011 Chemical Test Average Comparisons
2003 Averages
2004 Averages
2005 Averages
2006 Averages
2007 Averages
2008 Averages
2009 Averages
2010 Average
2011 Average
27D.O. % Sat. Turbidity JTU Fecal Coliform
Colonies/100 mL
Total Solids mg/L
0
200
400
600
800
1000
12002003 - 2011 Chemical Test Average Comparisons
2003 Averages
2004 Averages
2005 Averages
2006 Averages
2007 Averages
2008 Averages
2009 Averages
2010 Average
2011 Average
*2010 Fecal ColiformAverage 3,648 col/100 mL
*2006 Fecal Coliform Average 8,058 col/100 mL
Chemical Test Conclusions
• Upstream sites have a decreasing WQI, while lower stream sites have an increasing WQI.
• Flow and Nitrate are continuing to follow each other.
• May phosphate levels are high.• Nitrates over all are stabilizing.
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Macro Invertebrates
TolerantSomewhat Sensitive
Sensitive
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Beaver-Shell Creek Comparison2011
pH Nitrates Phos-phates
B.O.D0
2
4
6
8
10
12
14
16
18
20
Beaver Creek
Shell Creek
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Beaver-Shell Creek Comparison2011
Turbidity Fecal Col-iform
Total Solids
D.O. % Sat.
0
100
200
300
400
500
600
700
800
Beaver Creek
Shell Creek
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Beaver-Shell Creek WQI Comparison
May June July August Summer Average
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Summer Average
10
Summer Average
09
Summer Average
08
0
10
20
30
40
50
60
70
Beaver Creek Average WQI
Shell Creek Average WQI
WQI
Good
Medium
Bad
332010 Flood Study
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Date Site pHTemp. Chan.
Total Solids
mg/L
Fecal Coliform
Flow CFS
Turbidity JTU's
Dissolved Oxygen % Saturation
Dissolved Oxygen
ppm5 day BOD Nitrates Phosphates
WQI number WQI Rating
6/22
Site 1 8 0.2 410 750 5.4 171.77 36% 3.8 0 40.92 1.44 44.71 Bad
Site 2 7.5 1 390 2800 2.93 399.02 12% 0.2 0 9.68 0.2 35.05 Bad
Site 3 7.3 0.2 670 350 8.96 379.2 10% 1 0 12.5 0.19 52.53 Medium
Site 4 7.9 1.1 670 750 28.44 410 18% 1.7 0.7 4.62 1.23 48.94 Bad
Site 6 7.9 0 1600 200 43.89 406 14% 0.1 0 2.83 2.8 48.97 Bad
Site 5 7.8 0.3 1660 400 81.2 1076 11% 1.4 0 2.82 1.56 51.03 Medium
6/23
Site 1 8.1 0.1 540 550 5.78 66.7 64% 6.7 0 26.22 0.84 63.11 Medium
Site 2 7.7 1.9 590 550 2.34 114.2 47% 4.5 0 10.56 0.69 57.66 Medium
Site 3 7.8 -0.2 730 300 17.3 139.81 48% 4.6 0 32.65 0.56 56.66 Medium
Site 4 7.8 0.3 630 400 11.16 177 65% 6.2 0.7 11.66 1 56.3 Medium
Site 6 7.7 2 600 300 30.42 245 53% 5.2 0 9.6 1.27 53.9 Medium
Site 5 7.8 0.2 670 800 101.89 358 62% 6.2 0 11.04 1.19 54.31 Medium
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Date Site pHTemp. Chang.
Total Solids
mg/L
Fecal Coliform
FlowCFS
Turbidity JTU's
Dissolved Oxygen % Saturation
Dissolved Oxygen
ppm5 DayBOD Nitrates Phosphates
WQI number WQI Rating
7/20
Site 1 7.9 1.5 620 50 1.97 89.5 50% 4.3 0.7 38.02 0.81 53.86 Medium
Site 2 7.8 2.1 650 0 2.32 86.4 39% 3.3 0 33.79 0.65 60.87 Medium
Site 3 8.2 0 580 150 6.89 52.17 55% 4.6 0.3 29.04 0.76 54.77 Medium
Site 4 7.7 0.2 660 10016.0997 67 50% 4.1 0.1 21.47 0.87 59.07 Medium
Site 6 8.3 0.2 640 200 50.41 61 63% 5.4 2.8 22.704 1.09 52.37 Medium
Site 5 8 0.3 400 150 11.283 52 63% 5.4 3 20.5 1.12 54.21 Medium
7/21
Site 1 7.9N/A 430 400N/A 70.91 23% 3.5 0.7 26.576 1.19 42.87 Bad
Site 2 7.9N/A 440 50N/A 120.09 16% 2.5 0 12.32 0.55 46.93 Bad
Site 3 7.9N/A 540 50N/A 217.27 14% 2.3 0.3 12.012 0.47 47.16 Bad
Site 4 7.6N/A 2510 400N/A 235.4 0% 0 0 0 2.25 42.64 Bad
Site 6 8.2N/A 1320 200N/A 760.84 0% 0 3 5.02 2.25 41.03 Bad
Site 5 7.5N/A 4170 150N/A 271.56 0% 0 2.8 13.16 0.96 38.38 Bad
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