02/12/2003 P&Z Packet - Laserfiche WebLink

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• • • February 4, 2003 A Eest M un. iagze ✓ mi i ievni it i pan i shnl i re:jufire d i for en of post be . i C+v ; development agreement. This plan should address soil and tree protection iloi during ueV'vltii.+i 'vi It, and v'!iv keeping after development. i'v. C. viii keeping y C1i t'v development ss lu1 d include parking area sweeping, iiutte . pick-up, storage of any hazardous materials, Later rail, turf and native -area maintenance plans, and pond maintenance. Al! topsoil in the site should remain o i the site. Any intention to import soils, , must have the approval of the City, and be 3t✓ ri tted to RC'W D for review of surface water infiltration rate chances L:vanau Waters Lutheran Church: Since 1993 (the time The church was built), the Environmental Board has consistently asked new surface water management features es to buffer watershed features. The Area to the North is designated as a High-Priority Protection Area in the Lino Lakes Handbook for Conservation Design. Soils in this area are sandy, and pervious. If an infiltration train were designed into the site plan, there appears to be enough separation between the OHW and a designed rainportdlswall area. The rain pond area must be in an area where the Seasn, laity high water table is at least 3 feet from the bottom of the pond Please refer to (Attachment u). The seasonally high 11 yruui io- vvaier level should be verified. Peak flow analysis indicates a .23 cfs increase in water volume flow in a two year event, a .32 cfs increase in water { volume flow in a 10 year event, and a .36 increase in water volume flow for a 1 g00 year event for the entire site. The basin should be designed if possible to accommodate this extra surface water volume, if not for the entire site. Additional ponding is shown in the turf areas. No surface-water analysis information Cation is available at this time. The soil areas around proposed remaining pervious areas should be protected from compaction during construction. n buffer of native plants incorporated into edges and a surface-water-treatment-train should be planted. Ground story ma =4 materials should be native in the ponding and drainage stage areas, All proposed sou areas Si iould have at least inches of topsoil tilled thoroughly into the subsoil as deep as possible. A detailed landscape pion should indicate more foundation plants. A few oak trees should be planted into the surface 'water treatment areas. Suggest changing the Sugar maples to a variety of Red rnapie or oak. Although there is no proposed lighting for the added space on the church, the possibility exists that there may be a need to light the building in the future. if this should happen, than the lighting ng-.' should be gown irv'ar u focused, no-spill type'' lighting. n