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NG Shell Creek Data Powerpoint 2008

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Data collected from Shell Creek in Nebraska by the 2008 Newman Grove Shell Creek Watershed team.

Data collected from Shell Creek in Nebraska by the 2008 Newman Grove Shell Creek Watershed team.

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  • 1. 1
  • 2. 2008 Shell Creek Watershed StudyAdvisors – Mark Seier & Suzy GoedekenResearchers – Sheila O’Brien, Brett Roberg, JessicaBoschen, Sean Farrier, Ann O’Brien, Lynzee Pieke, MandyAnderson, Alyshia Nelson, Jordan Nelson, Jesse Knust,Luke Gasper, Darrek Schmidt, Jonathon Dohmen, TimWiese, Olivia Wiese, Jake Kaufman, Katie O’Brien, MarkO’Brien, April Ramaekers, Aubrey Strong, AudreyWondercheck, Greg Roberg 2
  • 3. Shell Creek and Loseke-Taylor Creek Watersheds (with Township-Range Labels) Lower Platte North Natural Resources District 6 3
  • 4. Site 1 4
  • 5. Site 2 5
  • 6. Site 3 6
  • 7. Site 4 7
  • 8. Site 6 8
  • 9. Site 5 9
  • 10. 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. 10
  • 11. • 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. 11
  • 12. Sample W.Q.I. Curve Chart 12
  • 13. Sample W.Q.I. Form W e ig hting Te s t R e s ults Q -value Fac tor T o ta l DO % s at. 0 .1 7Fe c al C olifor m c ol/1 0 0 mL 0 .1 6 pH units 0 .1 1 BOD mg /L 0 .1 1 Te mpe r atur e c hang e in C 0 .1Total P hos phate mg /L 0 .1 N itr ate s mg /L 0 .1 Tur bidity J TU 0 .0 8 Total S olids mg /L 0 .0 7 Overall Water Quality Index ___ 13
  • 14. 2008 Precipitation 12 10 8Inches 6 4 2 0 May June July August Rainfall 14
  • 15. pH 8.4 8.1 Site 1 7.8 Site 2pH Level 7.5 Site 3 Site 4 7.2 Site 5 6.9 Site 6 6.6 6.3 June 3 June 17 July 23 August 5 & 18 &24 15 Date
  • 16. Change in Water Temperature 2.5 2 1.5Degrees Celcius Site 1 Site 2 1 Site 3 Site 4 0.5 Site 5 0 Site 6 June 3 June 17 & July 23 & August 5 -0.5 18 24 -1 Date The higher the change, the worse the water quality. 16
  • 17. Total Solids 1800 1600 1400 Site 1 1200 Site 2 1000mg/L Site 3 800 Site 4 600 Site 5 400 Site 6 200 0 June 3 June 17 & July 23 & August 5 18 24 Date The higher the concentration, the worse the water quality. 17
  • 18. Fecal Coliform 18
  • 19. Fecal Coliform 1400 1200colonies/100 mL 1000 Site 1 Site 2 800 Site 3 600 Site 4 Site 5 400 Site 6 200 0 June 3 June 17 & July 23 & August 5 18 24 Date 19
  • 20. Flow 90 80Cubic feet per second 70 Site 1 60 Site 2 50 Site 3 40 Site 4 30 Site 5 20 Site 6 10 0 June 3 June 17 & July 23 & August 5 18 24 Date 20
  • 21. Turbidity 500 450 400 350 Site 1 Site 2 300 Site 3JTUs 250 Site 4 200 Site 5 150 Site 6 100 50 0 June 3 June 17 & July 23 & August 5 18 24 Date 21
  • 22. Dissolved Oxygen 100 90 80 70 Site 1% Saturation Site 2 60 Site 3 50 Site 4 40 Site 5 30 Site 6 20 10 0 June 3 June 17 & July 23 & August 5 18 24 Date 22
  • 23. 5 Day Biological Oxygen Demand 5 4.5 4 Site 1 3.5 Site 2 3 Site 3ppm 2.5 Site 4 2 Site 5 1.5 Site 6 1 0.5 0 June 3 June 17 & July 23 & August 5 18 24 Date The higher the change, the worse the water quality. 23
  • 24. Nitrates 70 60 50 Site 1 Site 2 40 Site 3ppm 30 Site 4 Site 5 20 Site 6 10 0 June 3 June 17 & July 23 & August 5 18 24 Date 24
  • 25. Phosphates 2.5 2 Site 1 Site 2 1.5 Site 3ppm Site 4 1 Site 5 Site 6 0.5 0 June 3 June 17& July 23 & August 5 18 24 Date 25
  • 26. WQI Averages by Site Good 70 65 60 MediumWQI 55 50 Bad 45 Site 1 Site 2 Site 3 Site 4 Site 6 Site 5 2003 Averages 2004 Averages 2005 Averages 2006 Averages 2007 Averages 2008 Averages 26
  • 27. WQI Averages by Date Good 70 65 60 MediumWQI 55 50 Bad 45 May June July August Month 2003 Averages 2004 Averages 2005 Averages 2006 Averages 2007 Averages 2008 Averages 27
  • 28. 2003 - 2008 Chemical Test Average Comparisons30252015 2003 Averages 2004 Averages10 2005 Averages 2006 Averages5 2007 Averages0 2008 Averages pH . s ge es p. .D e m at at ar .O Te itr ph ch B N os is inD Ph e ng ha Chemical Test C 28
  • 29. 2003 - 2008 Chemical Test Average Comparisons1200 *2006 Fecal Coliform1000 Average 8,058 col/100 mL800 2003 Averages 2004 Averages600 2005 Averages 2006 Averages400 2007 Averages 2008 Averages200 0 D.O. % Sat. Turbidity Fecal Coliform Total Solids 29 Chemical Test
  • 30. Chemical Test Conclusions• Fecal coliform readings still very sporadic• Dissolved Oxygen still very low• Nitrates very high this year• Overall water quality lower this year probably due to increased nitrates• Discharge up this year but turbidity is down 30
  • 31. Macro InvertebratesSensitive Somewhat Sensitive Tolerant 31
  • 32. Sample Bio-Indicator Data Form 32
  • 33. Beaver-Shell Creek WQI Comparison 70 60 50 40 Beaver CreekWQI Average WQI Shell Creek 30 Average WQI 20 10 0 Early Late June July August Summer June Average 33
  • 34. Beaver-Shell Creek Comparison302520 Beaver Creek Shell Creek151050 pH Nitrates Phosphates B.O.D 34
  • 35. Beaver-Shell Creek Comparison800700600500400 Beaver Creek300 Shell Creek200100 0 Turbidity Fecal Total Solids D.O. % Sat. Coliform 35
  • 36. 2008 Flood Study 36
  • 37. 2008 Flood Study Date Avg. Total Solid Solid Width Flow Solids and Depth Discharge Discharge (ft) (cfs) Time (ft) (mg/L) (lbs/min) (tons/hr)5/30/07 110 8.42 2243 9300 78145 23446/8/08 130 8.98 4328 8950 145138 4354 X cu ft 60 sec 28.32 L X mg 1g 1 lb 1 ton 60 min 1 sec 1 min 1 cu ft 1L 100 mg 453.6 g 2000 lb 1 hr 37
  • 38. 38
  • 39. 39
  • 40. 40
  • 41. 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. 41
  • 42. 42
  • 43. Thank You To: • Lower Platte North Natural Resource District • PrairieLand RC&D• Natural Resource Conservation Service • Nebraska Department of Environmental Quality • Shell Creek Watershed 43 Improvement Group

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