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TASK 2: Compile a comprehensive list, identify locations on map, City(HDR is doing this for the <br /> and provide specs for existing stormwater treatment in entire City and they were going <br /> OLUSA to focus in this area first per our <br /> last meeting:correct?) <br /> TASK 3: Model existing OLUSA using WinSLAMM(existing District <br /> conditions) and select highest ranking catchments for further <br /> analysis based on 1)potential loading or prioritize <br /> catchments based on proximity and estimated delivery(i.e. <br /> prioritize catchments based on direct connection without <br /> treatment or 3) select all catchments within selected <br /> subwatershed for further analysis. <br /> TASK 4: Conduct desktop search for retrofit sites District/City <br /> TASK 5: Prepare maps for field reconnaissance of retrofit sites District <br /> STEP 3: FIELD RECONNAISSANCE <br /> TASK l: Visit each site to 1)confirm remote data and 2)confirm District/City <br /> applicability of assigned retrofit area type (from previous <br /> step)or modify plan <br /> TASK 2: Choose which BMP(s)to employ District/City <br /> a) Storage Retrofits: <br /> • Extended Detention <br /> • Wet ponds <br /> • Wetlands <br /> b) On-site Retrofits: <br /> • Bioretention <br /> • Filtration <br /> • Infiltration <br /> • Swales <br /> • Other <br /> TASK 3: Gather site specific data that will either/both limit or District/City <br /> improve BMP design performance <br /> TASK 4: Assign priority ranking for individual parcels in terms of District/City <br /> retrofit applicability and expected performance as <br /> determined by their location in the watershed and site- <br /> limiting factors <br /> STEP 4: COSTBENEFIT ANALYSIS <br /> TASK 1: Model OLUSA with identified retrofits using WinSLAMM District <br /> 2014 ORONO LAKE SUBWAi iED ASSESSmL�� AGREEMENT <br />