NG Shell Creek Data Powerpoint 2007
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Transcript of NG Shell Creek Data Powerpoint 2007
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2007 Shell Creek Watershed Study
Advisors – Mark Seier & Suzy Goedeken
Researchers – Sheila O’Brien, Brett Roberg, Sheana Wallin, Jessica Boschen, Sean Farrier, Ann O’Brien, Lynzee Pieke, Mandy Anderson, Alyshia Nelson, Shae Wallin, Jordan Nelson, Jesse Knust, Luke Gasper, Darrek Schmidt, Jonathon Dohmen, Connie Dohmen, Tim Wiese, Laura Johnson, Olivia Wiese, Jake Kaufman, Katie O’Brien, Kelsey Wallin, Josh Kaufman, Tom O’Brien, Heather Schmidt
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(with Township-Range Labels)
Shell Creek and Loseke-Taylor Creek Watersheds
Lower Platte North Natural Resources District
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4
Site 1
5
Site 2
6
Site 3
7
Site 4
8
Site 6
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Site 5
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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 weren’t part of W.Q.I., but did 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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2007 Precipitation
0
1
2
3
4
5
May June July August
Inch
es
Rainfall
15
pH
6.3
6.6
6.9
7.2
7.5
7.8
8.1
8.4
May 26 June 15&16 July 9&10 August 7
Date
pH
Leve
l
Site 1Site 2Site 3Site 4Site 5Site 6
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Change in Water Temperature
-2
-1
0
1
2
3
4
May 27 June 15 &16
July 9 & 10 August 7
Date
Deg
rees
Celc
ius Site 1
Site 2Site 3Site 4Site 5Site 6
The higher the change, the worse the water quality.
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Total Solids
0
500
1000
1500
2000
2500
May 27 June 15 &16
July 9 & 10 August 7
Date
mg
/L
Site 1Site 2Site 3Site 4Site 5Site 6
The higher the concentration, the worse the water quality.
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Fecal Coliform
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Fecal Coliform
0
50
100
150
200
250
300
350
400
450
May 27 June15&16
July 9 & 10 August 7
Date
colo
nie
s/100 m
L Site 1Site 2Site 3Site 4Site 5Site 6
20
Flow
0
10
20
30
40
50
60
70
80
90
May 27 June 15 &16
July 9 & 10 August 7
Date
Cub
ic f
eet
per
seco
nd
Site 1Site 2Site 3Site 4Site 5Site 6
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Turbidity
0
100
200
300
400
500
600
May 27 June 15 &16
July 9 & 10 August 7
Date
JTU
's
Site 1Site 2Site 3Site 4Site 5Site 6
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Dissolved Oxygen
0
10
20
30
40
50
60
70
80
90
100
May 27 June 15 &16
July 9 & 10 August 7
Date
% S
atu
rati
on
Site 1Site 2Site 3Site 4Site 5Site 6
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5 Day Biological Oxygen Demand
0
1
2
3
4
5
6
May 27 June 15 &16
July 9 & 10 August 7
Date
pp
m
Site 1Site 2Site 3Site 4Site 5Site 6
The higher the change, the worse the water quality.
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Nitrates
0
5
10
15
20
25
30
35
40
May 27 June 15 &16
July 9 & 10 August 7
Date
pp
m
Site 1Site 2Site 3Site 4Site 5Site 6
25
Phosphates
0
0.5
1
1.5
2
2.5
3
3.5
May 27 June 15 &16
July 9 & 10 August 7
Date
pp
m
Site 1Site 2Site 3Site 4Site 5Site 6
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Chemical Test Conclusion• Significant increase in stream
discharge• Increasing nitrate levels• DO consistently low• Total dissolved solids increasing
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WQI Averages by Site
45
50
55
60
65
70
Site 1 Site 2 Site 3 Site 4 Site 6 Site 5
WQ
I
2003 Averages 2004 Averages 2005 Averages
2006 Averages 2007 Averages
Medium
Bad
Good
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WQI Averages by Date
45
50
55
60
65
70
May June July August
Month
WQ
I
2003 Averages 2004 Averages 2005 Averages
2006 Averages 2007 Averages
Bad
Medium
Good
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2003 to 2007 Chemical Test Average Comparisons
0
2
4
6
8
10
12
14
16
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Chemical Test
2003 Averages
2004 Averages
2005 Averages
2006 Averages
2007 Averages
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2003 to 2007 Chemical Test Average Comparisons
0
200
400
600
800
1000
1200
D.O. % Sat. Turbidity Fecal Coliform Total Solids
Chemical Test
2003 Averages
2004 Averages
2005 Averages
2006 Averages
2007 Averages
*2006 Fecal Coliform Average 8,058 col/100 mL
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Macro Invertebrates
TolerantSomewhat Sensitive
Sensitive
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Sample Bio-Indicator Data Form
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Bio-Indicator Ratings
0
2
4
6
8
10
12
May June July August
Month
Ratin
gs
site 1site 2site 3site 4site 5site 6
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0
2
4
6
8
10
12
14
16
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Ave
rage N
um
ber
of Fi
sh
Site 1 Site 2 Site 3 Site 4 Site 6 Site 5
Fathead Minnow
Sand Shiner
Red Shiner
River Shiner
Black Bullhead
Yellow Bullhead
Green Sunfish
Carp
Fish Study
58.51 WQI
58.28 WQI
61.06 WQI
50.4 WQI
47.0 WQI
55.24 WQI
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2007 Flood Study
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2007 Flood StudyDate and Time
Width (ft)
Avg. Depth
(ft)
Flow (cfs)
Fecal Colifor
m
Total Solids(mg/L)
NO3
(ppm)
SolidDischarg
e (lbs/min)
SolidDischarg
e (tons/hr)
5/303:08 AM
110 8.42 2243 200 9300 0 78145 2344
5/30 8:00 AM
84 7.38 1451 0 5160 2.31 27876 836
X cu ft
60 sec
28.32 L X mg 1 g 1 lb 1 ton 60 min
1 sec 1 min 1 cu ft 1 L 100 mg 453.6 g 2000 lb 1 hr
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Bio-
Indicators
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Chemical
Tests
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Website
• http://newman.esu8.org/project.html
OR• http://newman.esu8.org/
• Click “Our Students”• Click “Student Projects”
• Click “Watershed Project”• You can see our data and further information concerning this project,
including pictures.
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Thank You To:• Lower Platte North Natural Resource District
• PrairieLand RC&D
• Natural Resource Conservation Service
• Nebraska Department of Environmental Quality
• Shell Creek Watershed Improvement Group
• Chris Poole
• Phil Chvala
• Area Land Owners
The End