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Westwood ?rofess oral Se7vices. Inc. February 7, 1996 14180 Trunk Hwy.5 Eden Prairie. MN 55344 612.937.5150 Kate Drewry FAX 612.937.5822 District Administrator Rice Creek Watershed District 3585 Lexington Avenue North Suite 132 Arden Hills,Minnesota 55126-8016 RE: Apache Plaza Permit Application WPS#95338 St.Anthony Village Dear Nis.Drewry: On behalf of the Ste.Marie Company I am submitting application and supporting documentation for issuance of a RCWD permit for redevelopment of a portion of the Apache Plaza shopping center in St. Anthony Village,Minnesota. As you know this project has gone through considerable evolution over the course of the last three years. The final permit application is consistent with the concept plan previously submitted to RCWD and with the project EAW. The EAW comment period expires February 14, 1996. The City Council is scheduled to consider the results of the environmental review at the February 27, 1996 meeting. Please include this application for consideration at the February 28, 1996 Board meeting. We have included the following documents in support of this application: • Preliminary Plat • Grading,Drainage&Erosion Control Plan • Drainage Area Map • Hydrologic&Hydraulic Computations The following section discusses the key features of the proposed Storm Water Management Plan SITE HYDROLOGY The project consists of redevelopment of a portion of an existing shopping center. A vacant fitness club building,along with approximately 110,000 s.f. of the existing 525,000 s.f. mall building will be demolished to accommodate construction of a 75,000 s.f. Cub Foods store. The 51 acre site drains predominately from west to east and outlets via three main storm sewer lines to a trunk storm sewer in Silver Lake Road. This trunk sewer conveys storm water to a discharge in Silver Lake. The existing conditions are highly impervious with green space limited to the boulevard along Silver Lake Road and a small lawn space in the northwest comer of the center. The proposed Storm Water Management Plan calls for construction of three wet:detendon basins in,the redeveloped portion of the project. These basins will treat all runoff from the new Cub site along with the existing bank and two new retail lots created along the eastern frontage of the project. Additionally, the existing Tires Plus building and a portion of the eastern parking lot for the shopping center will also be routed through these detention basins.