Kaskaskia Watershed Water Quality Assessment J A N E T B U C H A N - PowerPoint PPT Presentation

Kaskaskia Watershed Water Quality Assessment J A N E T B U C H A N A N, H E A RT L A N DS C O N S E RVA N C Y S U S TA I N A B I L I T Y S H O W C A S E E V E N T I L L I N O I S S O YB E A N A S S O C I AT I O N J U LY 2 3 , 2 0 1 5

Overview  What the Kaskaskia Water Quality project was 10 years ago,  What the 2015-16 project will do, and  What happens after that - opportunities to implement Best Management Practices.

The 2006 – 2007 Study

Methods: analysis  Flow-weighted calculations  Statistical analyses (one-way ANOVA)  Plotting trends over time (annual means)  Comparison to typical nutrient levels

Taking nitrate-N (NO 3 ) as an example…

Taking nitrate-N (NO 3 ) as an example…

Taking nitrate-N (NO 3 ) as an example…

Other Results  High P, increasing in Lower Kaskaskia  Chemical Oxygen Demand (COD)   Increased turbidity  High fecal coliform spikes in the 1980’s; then declining

The 2015-2016 Update  What will the water quality assessment look at this time?  How will it be different?

2014 IEPA 303(d) listed waters  125 stream sections/lakes listed  …compared with 109 in 2006

Similarities & differences  Same subwatersheds  Same methods  14 (or fewer) monitoring stations  1 fewer parameters  Fresh BMP analysis

Outreach  Presentations in the upper and lower watersheds  Kaskaskia Watershed Association Summit presentations  Other outreach/workshops

After the Study Ends…  Opportunities for watershed planning, implementation grants  Groundwork laid to receive state & federal funds!  See: Upper Silver Creek and Cahokia Creek, Madison County  Information towards BMPs  Gets out in front of regulation

Thank You! Any Questions?