12/18/2013 Env Bd Packet - Laserfiche WebLink

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• • Floodplain The submitted information indicates that the 1982 FEMA Flood Insurance Rating Map (FIRM) shows the southeast quadrant of the site is located within a designated Zone a flood plain district. Per the Stormwater Management Plan, the 100 -year flood elevation is 909.7 which according the RCWD, this would also be the 100 -year regulatory flood elevation. With the exception of the ditch, the site is above this elevation and no floodplain fill is proposed for this project. A Letter of Map Revision (LOMR) will need to be obtained from the Federal Emergency Management Agency (FEMA) to verify the floodplain is not impacted by development. Per the Floodplain Ordinance, a Conditional Use Permit is required for any floodplain fill. The low floor freeboard shall be 2 feet above the floodplain elevation. The proposed lowest floor elevations appear to meet this standard. Wildlife Considerations in the AUAR In reference to language in the AUAR, the developer should provide for turtle and other wildlife passage by continuing to require surmountable curbing in new residential developments and encouraging ecologically sensitive site design. SWPPP There was no Stormwater Pollution Plan (SWPPP) submitted for this project. The Developer must submit a SWPPP before construction begins. The SWPPP must address the following: • Proposed erosion prevention and sediment control BMP's to control the discharge of sediment and /or other pollutants from the site, particularity at the point(s) of intended discharge. All surrounding stormwater inlet drains within 200 feet of the site that have water draining to them must have a city approved stormwater inlet protection device installed prior to construction. • Must provide the knowledgeable person/chain of responsibility information before construction begins. We need the name of the person that is knowledgeable and experienced in the application of erosion prevention before and during construction. The owner must identify who will have the responsibility for long- term operation and maintenance of the permanent stormwater management system. The owner must include in the SWPPP a chain of responsibility with all operators on the site, or if not known, the title or position of the responsibility of responsible party, to ensure that the SWPPP will be implemented and stay in effect until the construction project is complete, the entire site has undergone final stabilization and a "Notice of Termination" has been submitted to the MPCA. • The permitees must, before construction begins, provide training documentation that the individuals listed as SWPPP overseers are certified by a MPCA approved training method. With that, the City would need names of the person or persons 5