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Minnesota <br /> <br />Pollution <br /> <br />Control Agency-"" <br /> <br />January 28, 1980 <br /> <br />Ailene Peddycourt <br />City of Ramsey <br />15153 Nowthen Boulevard N.W. <br />Anoka, Minnesota 55303 <br /> <br />SUBJECT: <br /> <br />Environmental Assessment Worksheet on Alpaca Estates, <br />Anoka County <br /> <br />Dear Ms. Peddycourt: <br /> <br />The Minnesota Pollution Control Agency Water Quality Division <br />has reviewed the above referenced project, and it appears that <br />on-site septic systems could work in the development because of <br />lot sizes and soil type. However, the developer should watch <br />for the water table very closely on each particular lot to be <br />built on because the soil borings in certain areas indicate <br />mottling (showing water at this depth) at depths of two to <br />three feet below the ground surface. <br /> <br />It may be that subsurface drain fields will not work out systems <br />such as the mound may work. Setbacks will also be something to <br />watch as they near the flood plain zone. <br /> <br />Percolation rates will be necessary to adequately design any <br />system. <br /> <br />If the developer anticipates discharging storm water to the river, <br />provisions should be made to first route this water through a <br />settling pond, catch basin or small man-made wetland. This would <br />allow for some treatment, settling of solids and spill control if <br />one should occur. <br /> <br />Sincerely, /.. ~ <br /> <br />Clifford T. Anderson <br />Water Quality Coordinator <br />Environmental Planning & Review Unit <br /> <br /> Phone: <br /> 1935 West County Road B2, Roseville, Minnesota 55113 <br /> Regional Offices - Duluth/Brainerd/Detroit Lakes/Marshall~Rochester <br /> Equal Oppodundy Employer <br /> <br /> <br />