07/11/2001 P&Z Packet - Laserfiche WebLink

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From to 9822499 at 6/28/01 11:29 AM Pg 003/009 • • • Permit Application No. 01 -05 Glenn R. Rehbein, et. al. 7. Narrative of "structural soil" addressing the proposed silt and clay content. Provide any soil analysis (e.g. measured permeability) performed on this structural soil. 8. Infiltration trench detail providing sufficient separation between trench bottom and water table. According to the Minnesota Pollution Control Agency draft manual: Protecting Water Quality in Urban Areas a minimum three -foot distance should be provided below the bottom of the infiltration practice and bedrock or the water table. 9. Depressed island detail providing curb cut or flush curb details, depressional storage, adequate separation between bottom of practice and water table (at least three feet) and specification of native vegetation seed mix or landscaping plan. 10. Additional information for the bioretention basins in the northwestern and southwestern corners of the site including: depressional storage, outlet elevations, HWL's for the design events, adequate separation between bottom of practice and water table (at least three feet) and specification of native vegetation seed mix or native landscaping plan. 11. Narrative addressing consideration of pervious parking and green roof (contact Curt Sparks @ North American Wetland Engineering, 651- 433 -215, for design considerations). 12. Quantification of floodplain fill and compensatory storage measures below elevation of 886.9. 13. Identification on Grading Plan of detention pond emergency overflow and stabilization measures. 14. Revised lowest proposed first floor elevation (if necessary) complying with District 2 -foot, 100 -year and 1 -foot, emergency overflow elevation freeboard requirements (per Pending Item 1). 15. Revised erosion control plan specifying riprap at all storm sewer outfalls, detailed re- vegetation specifications, and an implementation schedule. 6/27/01