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Big Eau Pleine Reservoir Water Quality

Big Eau Pleine Reservoir Water Quality. Where are we?. History. UWSP 1970’s and 80’ (Shaw et al.) WVIC Annual Tri-annual DNR 2005-06 CBM Proposed BEP Monitoring Special Project 2009-2010 as a result of PACR denial. Wisconsin River TMDL.

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Big Eau Pleine Reservoir Water Quality

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  1. Big Eau Pleine ReservoirWater Quality Where are we?

  2. History • UWSP 1970’s and 80’ (Shaw et al.) • WVIC • Annual • Tri-annual • DNR • 2005-06 • CBM • Proposed BEP Monitoring Special Project 2009-2010 as a result of PACR denial

  3. Wisconsin River TMDL • Intent was to create a TMDL for the Wisconsin River • Huge task • Ultimately denied due to funding needs • Decided to piece it out. • BEP best candidate due to previous studies started long before 2008-09 fish kill

  4. What is a TMDLAnd WHY? • Total Maximum Daily Load What is the maximum load a water body can receive and still meet water quality standards • Monitoring needed to capture MASS! • Tie land use into water quality results • Locate sources of nutrients

  5. Watershed Characterization Land management variations determined within each subwatershed FIND THE SOURCES!!!!

  6. We Know….. • BOD and Nutrients affect water quality and ultimately fish health on BEP • Runoff is the major source of BOD and Nutrients • Controlling runoff will improve water quality and fish health • Confirmed in 2007

  7. BEP Winter Runoff Study • 2006-2007 studied compared BEP to Spirit Flowage • Runoff events vs. non-runoff event • Basic difference is land use • Spirit (11%) vs. BEP (77%) • Biochemical Oxygen Demand (BOD) and Total Phosphorus (TP)

  8. Results

  9. Other Results • BOD 4x’s higher in BEP than Spirit • TP 8x’s higher in BEP than Spirit • During runoff events, BOD 14x’s higher than Wausau Treatment Plant • Actual values expected to be higher

  10. What we need to know • What [BOD] load causing oxygen depletion • What [TP] fueling algal blooms • Need to indentify sources • Target sources and remediate • Need $$$ to remediate • Amount of green habitat

  11. Where do we go now?Need Current Data with Land Use • 2007 the BEP project was beginning • Funding was an issue • Tried and was successful in 2008 • Fish Kill • Monitoring starts in 10/2009 • Finish in 2011

  12. BEP Special ProjectNOT just another study! • Monitor BOD, TP and Q 2009-2010 • Model 358 mi2 of land use • Find the tolerable [c] • Implement land use practices to reach [c] Like it or not, this is needed first. Need to identify the problem (WHERE) to fix the problem.

  13. After Project • Implement • Proof to secure funding for cost share • See slow improvements • Continue band-aids while healing Will need involvement and cooperation for project to work!!!!

  14. Upper Big Eau Pleine Watershed

  15. Lower Big Eau Pleine watershed

  16. Results will show • What effects changes in land use have • Minor changes in land use can have major effects • What levels are tolerable • What will be the target levels • Priority areas • Identify, plan and implement*** • Flow changes can be evaluated

  17. QUESTIONS Thank You!

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