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Memo ^ i Bonestnoo <br />Rosene <br />AndeHik & <br />|\j| Associates <br />CAg«n«*n 4 A/cfilt*<ti <br />Project Name: Andersen Subdivision <br />To: Tom Kellogg <br />From: Heather A. Olson <br />Re: Storm water quantity and quality review <br />Client: City of Orono <br />File No: 139-2321 <br />Date: April 1,1998 <br />Remarks: <br />General <br />in the plans prepared by Otto Associates, Inc <br />and dated 3/15/98. The site is located west of Old Crystal Bay Road South (Co. Rd. 84) in the northwest <br />quarter of section 9. The site consists of approximately 17 acres of 2.0 acre Rural Residential lots The <br />site will drain under Old Crystal Bay Road South into a moderately susceptible wetland area. <br />Water Quality <br />The proximity of this development to Lake Minnetonka (Maxweli Bay), increases the importance of erosion <br />control and treatment for the runoff from this site. We offer the following recommendations: <br />bllffeX «t=hi' ^ "'s recommended that a vegetatedbuffer be established to provide some treatment before leaving the site. vegetated <br />5. A wet volume of 0.37Acre-Feet should be provided for the adequate efficiency of phosphorous removal. <br />Bonestroo, Rosene, Anderllk and Associates <br />2335 West Highway 36 ■ St. Paul. MN 55113 ■ Phone: 612-636-4600 ■ Fax: 612-636-1311 ------------------