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ENVIRONMENTAL BOARD MEETING FEBRUARY 25, 2009 <br />6. OPEN MIKE <br />Open mike opened and closed at 6:35 p.m. <br />7. ACTION ITEMS <br />None. <br />8. DISCUSSION ITEMS <br />A. Anoka Soil Water Conservation District/Rice Lake Stormwater <br />Retrofit/Nate Zwonitzer <br />Mr. Nate Zwonitzer from Anoka County Conservation District gave a presentation <br />to the Environmental Board members on the Rice Lake Stormwater Retrofit <br />Proposal. <br />Retrofit Goals consist of: Reducing the volume and pollutant load entering water <br />body of concern. Identify pollutant "hot- spots" within subwatershed: Prioritize <br />neighborhoods and project sites to maximize treatment per dollar spent and to <br />install retrofit projects. <br />Ms. O'Dea questioned why we want to reduce water. Mr. Zwonitzer stated when <br />you introduce impervious surfaces through new developments, we want to change <br />the way the water travels, not reduce it. <br />Step 1: Retrofit Scoping = Screen for retrofit potential, define retrofitting <br />objectives and identify preferred treatment options. <br />Step 2: Desktop Retrofit Analysis = Gather maps of stormwater practices, conduct <br />desktop search for retrofit sites and Prepare base maps. <br />Step 3: Retrofit Reconnaissance Investigation = Verify stormwater mapping and <br />Investigate Feasibility of Retrofit Sites. <br />Step 4: Retrofit Evaluation and Ranking = Compute volume and pollutant <br />reductions, compare results with restoration objectives and rank retrofit projects <br />according to effectiveness and cost. <br />Step 5: Subwatershed Treatment Analysis = (Evaluation and Ranking) Conduct <br />neighborhood consultations, develop retrofit screening criteria and create retrofit <br />project priority list. <br />Step 6: Finalize Designs = Obtain landowner approval, conduct bidding for <br />construction and assemble design packages. <br />2 DRAFT MINUTES <br />• <br />• <br />