Shingle Creek and West Mississippi Watershed Management Commissions

1. Shingle Creek andWest Mississippi Watershed Management Commissions Third Generation Watershed Management Plan CAC Meeting 2 - Implementation

2. Meeting Purpose • Review the proposed Implementation Plan activities • Development Rules and Standards • Monitoring Program • Education and Outreach Program • Capital Projects

3. Rules and Standards

4. Rules and Standards • Rate of stormwater runoff cannot increase. • Runoff must be treated to remove at least 60% of total phosphorus and 85% of sediment. • The first ½ inch of runoff must be infiltrated on site, such as in rain gardens, bioinfiltration basins, swales, or capture and reuse. • Wetlands and floodplains are protected.

5. New Development Requirements • Current Rules apply to any development project on sites greater than 5 acres; single family residential threshold is 15 acres • Proposed Rules apply to any development project on sites greater than one acre

6. Redevelopment Requirements • Current Rules: meet water quality and infiltration requirements only for new impervious surface • Proposed Rules: any redevelopment impacting more than 50% of the site must meet all the same rules as new development • Proposed Rules: any redevelopment impacting less than 50% of the site must meet the same rules for the entire redeveloped area

7. Increased Infiltration Requirement • Currently must infiltrate ½ inch of runoff within 48 hours • Proposed new standard is one inch of runoff in 48 hours • Exceptions for clay soils, areas with soil contamination, or wellhead protection areas Bioinfiltration swale, Brooklyn Center

8. Proposed New Infiltration Credit • Get credit towards infiltration requirement • Provide soil management in turfed areas on site • Decompact soil to 12” in depth • Amend top 8” with compost

9. Monitoring Program

10. Monitoring Program

11. Monitoring Sites SC-3 Shingle Creek at Brooklyn Blvd Sampled 2007 – Present SC-2 Sampled 1996-2006 Approx. 11,000 acres drainage USGS Station Shingle Creek at Queen Ave Sampled 1996 – Present SC-0 Shingle Creek at 45th Ave Sampled 2001 – Present Approx. 26,000 acre drainage

13. Water Quality

15. Longitudinal DO Surveys Palmer Lake

16. Lake Monitoring

17. Lake Monitoring • Volunteer monitoring through Citizen Assisted Lake Monitoring Program • Proposed in Third Generation Plan: • More intensive water quality monitoring • Aquatic vegetation surveys • Sediment coring Schmidt Lake, Plymouth

19. Wetland Monitoring • Wetland Health Evaluation Program • Adult volunteers monitor vegetation and macroinvertebrates (bugs) in wetlands

20. Macroinvertebrate/Fish Monitoring • Commission monitors fish/bugs every 5 years • River Watch Volunteer Monitoring • High school students • 3 locations on Shingle Creek • 1 location on Mattson Brook

21. Education and Outreach

22. Education and Outreach Programming • Sponsor volunteer events • Participate in education fairs • Provide classroom education

23. New Program – “Green Yard”

24. Other Education and Outreach • What things would you like the Commissions to take on?

25. Projects

26. Intensive BMP Studies

28. Capital Projects

29. Implementing TMDLs

30. Watershed-wide Meeting

31. Thank You!