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„TKDA ENGINEERS • ARCHITECTS • PLANNERS • • MEMORANDUM To: 1500 PIPER JAFFRAY PLAZA 444 CEDAR STREET SAINT PAUL, MINNESOTA 55101-2140 PHONE: 851/292 -4400 FAX: 851/292 -0083 Jim Studenski Reference: Drainage Review for Copies To: John Powell Raske Building Systems, Inc From: Stephen W. Hartley A- Lino Lakes, Minnesota Date: May 1, 2002 Commission No. 12475 -002 The following documents, submitted April 23, 2002, to the City of Lino Lakes, were used to review the Raske Building Systems, Inc. site plan: Rice Creek Watershed District submittal dated September 13, 2001 Rice Creek Watershed District submittal dated April 11, 2002 Grading Plan C -2 dated September 10, 2001, and signed April 4, 2002 After reviewing the above documents, I have the following comments: 1. In the April 11, 2002, letter to Rice Creek Watershed District, it is stated that the west pond on parcel "E” was designed as part of the 1992 Apollo Drive Project. The west pond is not an existing pond, but an old borrow pit. The City has no objection to this pit being turned into a pond, but it is the developer's engineer's responsibility to show the pond will work. 2. The west pond was reanalyzed at the request of Rice Creek Watershed District according to the April 11, 2002 letter. In this letter the maximum flood elevation is given as 900.84 feet. This elevation will need to be used as the High Water Elevation on the grading plan. 3. What is the High Water Elevation of the proposed sedimentation basin on the Raske Building Systems, Inc. site? This elevation will need to be shown on the grading plan. 4. The proposed parking lot drains to a single curb cut in the southwest corner of the parking lot. This curb put is too close to the outlet of the sedimentation basin and will need to be moved to the east end of the basin. An Equal Opportunity Employer