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, <br /> _ _. .. <br /> � O,�. <br /> � <br /> O O . <br /> CITY of ORONO <br /> � r � '_ �/ <br /> „� , ��, MunicipalOffices <br /> t Street Address: Maiting Address: <br /> ��'9 4'�G Ile Parkwa P.O. Box 66 <br /> �i('ESHp 2750 Ke y y <br /> Orono, MN 55356 Crystal Bay, MN 55323•0066 <br /> August 27, 2004 <br /> Jon&Nora Sillerud <br /> 1415 Park Drive <br /> Mound MN 55364 <br /> Dear Mr. & Mrs. Sillerud; <br /> Subject: 1423 Park Drive Drainage <br /> Enclosed you will find several exhibits that show contours and improvements for the properties <br /> in your immediate vicinity. <br /> Exhibit A is a 1992 aerial photograph with property lines and contours overlain. A review of the <br /> 2' elevation contours shows a natural drainage way flowing northeast across the two properties. <br /> This map clearly indicates that water from the southern half of the 1423 Park Drive property <br /> has historically drained to the northeast across your property at 1415 Park Drive. <br /> Exhibit B is a survey for the new house at 1423 Park The dashed contour lines are exisiting <br /> conditions and the solid contour lines are proposed contours A review of the proposed contours <br /> shows that minimal grading was completed for the new house construction, and the grading was <br /> limited to the southern half of the lot. The proposed contours show drainage swales on both the <br /> east and west sides of the new house to convey the water past the house. The grading on the lake <br /> side of the house did not change the water flow direction, so the water from the swales continues <br /> to drain towards the northeast which is consistent with the historic drainage pattern. A recent site <br /> inspection by Bruce Vang, Orono Building Inspector, confirxned that the drainage swales are <br /> inplace. <br /> E�ibit C is the survey for the new house at 1423 Park overlain on the 1992 aerial photography <br /> contours. The contours on the building survey correspond closely to the 1992 aerial photography <br /> contours and confirm that there was minimal grading completed for the new house construction. <br /> A review of the two sets of contours confirms the water from the new house clearly follows the <br /> historic drainage pattern to the northeast. <br /> Telephone(952)249-4600 • Fax(952)249-4616 <br /> www.ci.orono.mn.us <br />