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• .vd Howard R. Green Company September 10, 2003 File: 822070J-0240 Mr. Scott Harlicker Senior Planner City of Elk River 13065 Orono Parkway Elk River, MN 55330 RE: BOULDER POINT DEVELOPMENT Dear Mr. Harlicker: As requested, we have reviewed the submittal package for the Boulder Point Development. As you are aware, this is the approximate two-acre parcel property located in the southeast quadrant of Twin Lakes Road and Sherburne County Road 12. The proposal is to construct nine townhomes, a four- unit building and a five-unit building, on the property. The submittal consisted of a preliminary plat and site plan, preliminary utility plan, and preliminary grading and drainage plan. The submittal • package was prepared by Otto and Associates Engineers and Land Surveyors, Inc. Based on our review, we would offer the following comments: 1. The preliminary plat for Boulder Point should provide access control on all sides, with the exception of the driveway area, which connects to Vance Circle in Trott Brook Farms South subdivision. 2. Sanitary sewer and water service are proposed to be provided by extending utilities from Vance Circle in Trott Brook Farms South. The sanitary sewer and water will be considered public improvements, and therefore need to be constructed within drainage and utility easements to allow operation and maintenance of the sewer and water facilities by the City staff. 3. Unless there is an association that will be billed directly for the sanitary sewer and water service, each individual lot, if individually owned, needs to have its own services. 4. There is an existing curb cut on County Road 12 for the driveway to the existing home on the site. The driveway needs to be removed and the concrete curb and gutter replaced with barrier-style curb at the opening in County Road 12. 5. No storm sewer calculations were submitted with the plans. Storm sewer calculations will need to be provided, reviewed, and approved. Currently, the drainage plan is showing catch basins and storm sewer collecting runoff from the site and conveying it directly to the holding pond in Trott Brook Farms South. The holding pond in Trott Brook Farms South • was not sized for the development of the Boulder Point. The pond will need to be enlarged to accommodate the drainage from Boulder Point, such that outlet from the pond to the Lt r-091003-H a rl i cke r 1326 Energy Park Drive • St. Paul, MN 55108 • 651/644-4389 fax 651/644-9446 toll free 888/368-4389