Area. Kinnickinnic River 24.7 Menomonee River Milwaukee River Oak Creek 28.2 Root River Lake Michigan Direct 40.

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2 Area Watershed (square miles) Kinnickinnic River 24.7 Menomonee River Milwaukee River Oak Creek 28.2 Root River Lake Michigan Direct 40.7 Drainage Area Total 1,127.0 Number of Counties 9 Number of Local Municipalities 83

3 Bl Below ground Gallons of Storage Long In Diameter

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5 SEWRPC s Regional Water Quality Management Plan Update Pollution Sources Summary Urban-Non- Agricultural Runoff 23% Rural- Agricultural Runoff 21% WWTP 5% 1975 SSO's 2% Discharge 0% Discharge 0% Greater Milwaukee Watersheds Fecal Coliform Loadings WWTP 2% SSO's 2% CSO's 7% CSO's 49% Rural- Agricultural Urban-Non- Agricultural Runoff 68% Runoff 21% Estimated Pollutant Reduction over 25-Year Period About 50 Percent 2000 CONCLUSION: Focus on abating stormwater runoff pollution

6 Milwaukee River Watershed - Existing (Year 2000) Loads of Total Phosphorus (lbs/yr) Milwaukee River Watershed - Existing (Year 2000) Loads of Total Nitrogen (lbs/yr) 81,060 30% 93,840 34% 75,530 3% SSOs 3,280 <0.1% CSOs 17,910 1% WWTPs 123,210 6% SSOs 780 <0.1% 227,480 10% 45,290 16% WWTPs 51,740 19% CSOs 1,790 1% 1,733,700 80% Milwaukee River Watershed - Existing (Year 2000) Loads of Total Suspended Solids (lbs/yr) Milwaukee River Watershed - Existing (Year 2000) Loads of Fecal Coliforms (# in trillions of cells/yr) CSOs 143,650 <0.1% 454,000 1% 39,760,000 68% SSOs 24,000 <0.1% WWTPs 294,000 1% 17,708,000 30% 14,366 35% 12 <0.1% SSOs 429 1% CSOs 1,879 5% WWTPs 42 <0.1% 24,099 59%

7 Menomonee River Watershed - Existing (Year 2000) Loads of Total Phosphorus (lbs/yr) Menomonee River Watershed - Existing (Year 2000) Loads of Total Nitrogen (lbs/yr) 4,070 8% 17,550 33% 55,650 14% SSOs 1,230 <0.1% 118,410 30% CSOs 11,610 3% SSOs 580 1% 29,040 CSOs 55% 1,880 3% 209,340 53% Menomonee River Watershed - Existing (Year 2000) Loads of Total Suspended Solids (lbs/yr) Menomonee River Watershed - Existing (Year 2000) Loads of Fecal Coliforms (#in trillions of cells/yr) 1,950,230 11% 58,740 <0.1% SSOs 33,590 <0.1% CSOs 182,960 1% 393 2% 0 0% SSOs 641 4% CSOs 1,727 10% 15,738,270 88% 14,112 84%

8 Future Considerations / Approaches

9 Watershed Approach Southeastern t Wisconsin i Watersheds Trust Editorial: Watershed trust can be a force for regional unity - Milwaukee Journal Sentinel, May 4, 2008

10 Greenseams SM 2,400 Acres Since 2002

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12 Water quality trading is an innovative i approach to achieve water quality goals more efficiently. Trading is based on the fact that sources in a watershed can face very different costs to control the same pollutant. Trading programs allow facilities facing higher pollution control costs to meet their regulatory obligations by purchasing environmentally equivalent (or superior) pollution reductions from another source at lower cost, thus achieving i the same water quality improvement at lower overall cost.

13 While trading can take many different forms, the foundations of trading are that a water quality goal is established and that sources within the watershed have significantly different costs to achieve comparable levels of pollution control.

14 Trading works best when: There is a "driver" that motivates facilities to seek pollutant reductions, usually a Total Maximum Daily Load (TMDL) or a more stringent water quality-based requirement in an NPDES permit; Sources within the watershed have significantly different costs to control the pollutant of concern; Watershed stakeholders and the state regulatory agency are willing to try an innovative approach and engage in trading design and implementation issues.

15 In 2010, the Wisconsin Department of Natural Resources initiated a collaborative effort to develop a statewide framework for water quality trading.

16 Milwaukee River Watershed - Existing (Year 2000) Loads of Total Phosphorus (lbs/yr) 81,060 30% 93,840 34% SSOs 780 <0.1% 45,290 16% WWTPs 51,740 19% CSOs 1,790 1%

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