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<br />, , <br />. ~W1 CONSULTING ENGINEERS <br /> Maier Stewart & Associates Inc. <br /> October 2, 1992 <br /> Mr. Steve Woods <br /> District Engineer <br /> Rice Creek Watershed District <br /> J.M Montgomery Consulting Engineers <br /> 545 Indian Mound <br /> Wayzata, MN <br /> RE: RCWD COMMENTS ON <br /> ARDEN HILLS LOCAL WATER MANAGEMENT PLAN <br /> Dear Mr. Woods: <br /> On behalf of the City of Arden Hills, Maier Stewart & Associates, Inc. (MSA) prepared <br /> the draft Water Management Plan which was submitted to the Watershed District in <br /> May. We have received the review comments letter dated, August 26, 1992. This <br />. letter is our response to those comments. <br /> Runoff Manaaement <br /> Standards for flow to detention basins are to be included in the City ordinance. <br /> However, it does not seem appropriate to include the flow standards in the <br /> management plan itself. The management plan is written to provide a general <br /> overview for water management within the city. Specific requirements are to be <br /> included in the city ordinances. <br /> Water quality of the runoff can be handled using some of the techniques de- <br /> scribed in the MPCA Protectina Water Qualitv in Urban Areas. Passages in that <br /> book indicate that different methods of control should be determined for each <br /> location on a site specific basis. It seems inappropriate to limit the methods <br /> allowed by naming only one or two techniques in the Water Management Plan. <br /> Best Management Practices (BMP) should be required. The City Engineer or <br /> RCWD can have approval rights. <br /> Pond design will be included with the plat development plans. The plat plan will <br /> be reviewed by the City Engineer and staff. Since this is an area of particular <br /> concern to the Watershed District, the RCWD may continue be involved in the <br /> plat review process for development, especially in the Round Lake area. <br /> MSA, Inc. employees are reluctant to include the TR20 run data in the plan itself. <br />. We believe there is a potential for misuse of this data if it is published as part of <br /> the plan. MSA believes that the qualitative modeling results are the appropriate <br /> 1959 SLOAN PLACE, SUITE 200, ST PAUL, MINNESOTA 55117 612-774-6021 <br /> 9800 SHELARD PARKWAY, SUITE 102, MINNEAPOLIS. MINNEsarA 55441 612-546-0432 . Equal Opportunity Employer <br /> --- <br />