Download
1 / 31
320 likes | 414 Vues
Review the proposed activities, rules, monitoring, education and outreach programs, and capital projects standards for effective watershed management. Key focus areas include runoff treatment, infiltration requirements, redevelopment rules, and monitoring initiatives. Enhance water quality and ecosystem health in the Shingle Creek and West Mississippi Watershed.
E N D
Shingle Creek andWest Mississippi Watershed Management Commissions Third Generation Watershed Management Plan CAC Meeting 2 - Implementation
Meeting Purpose • Review the proposed Implementation Plan activities • Development Rules and Standards • Monitoring Program • Education and Outreach Program • Capital Projects
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.
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
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
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
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
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
Longitudinal DO Surveys Palmer Lake
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
Wetland Monitoring • Wetland Health Evaluation Program • Adult volunteers monitor vegetation and macroinvertebrates (bugs) in wetlands
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
Education and Outreach Programming • Sponsor volunteer events • Participate in education fairs • Provide classroom education
Other Education and Outreach • What things would you like the Commissions to take on?
