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Co Cordova silty clay loam mixed hardwood forest flats and shallow <br />drainaizeways <br />loam glacial till 1-3 feet <br />llcP2 Hayden clay loam 1 2-1 8% <br />slopes, eroded <br />mixed hardwood forest hillsides and knolls loamy glacial till 5 feet + <br />HID Hc\der complex, 12-18% <br />slopes <br />mixed hardwood forest hillsides loamy glacial till 5 feet <br />HcE2 ! Ia\ den clay loam 18-24®o <br />slopes, eroded <br />mixed hardwood forest hillsides loamy glacial till 5 »'eet <br />HbD lla> den loam 12-18% <br />slopes <br />mixed hardwood forest knolls and hillsides loamy glacial till 5 feet + <br />HIE 1 Icy der complex, 12-18% <br />slopes <br />mixed hardwood forest hillsides loamy glacial till 5 feet + <br />NeB Nessel loam, l-4®/o slopes mixed hardwoods oiJtwash plains calcareous till 3-5 feet <br />HdF Hayden and Lester loams <br />24-35% slopes <br />mixed hardwood forest hillsides H: loamy glacial <br />till <br />L: calcareous ti'l <br />5 feet + <br />G.P.Gravel Pit n/a n'a n/a n/a <br />Pa Peaty muck hoc former lake bottoms peal near surface <br />HbE Hayden loam. 18-24% <br />slopes <br />mixed hardwood forest hillsides loamy glacial till 5 feet + <br />Soils generally consist of a layer of topsoil over a several foot layer of alluvial clays and till followed <br />by coarse alluvium down to bedrock. Soil borings have been advanced and boring logs are available <br />upon request. <br />17. Erosion and Sedimentation Give the acreage to be graoed or excavated and the cubic <br />yards of soil to be moved: acres approximately 80 : cubic yards 339.750 . <br />Describe any steep slopes or highly erodible soils and identify them on the site map. <br />Describe the erosion and sedimentation measures to be used during and after construction <br />of the project. <br />Steep slopes are present around the Conference Center. Best Management Practices as <br />prescribed by the Metropolitan Council will be utilized to minimize potential erosion during <br />construction. Upon completion of each construction phase, all soil surfaces will be <br />revegetated. All soils excavated on the Site will remain on the Site. <br />18. Water Quality • Surface Water Runoff <br />a. Compare the quantity and quality of site runoff before and after the project. Describe <br />methods to be used to manage and/or treat runoff. <br />The project Site contributes drainage to Long Lake. This water eventually makes its way to <br />Lake Minnetonka. The Site is located in the Minnehaha Creek Watershed District. Three <br />minor watershed areas drain through the Site and outlet into Long I ake. The watershed <br />btjndaries extend north of the project area and include approximately 208 acres of off-site <br />drainage area. The runoff flows through the Site from the north to the south and outlets into <br />Long Lake through culverts under Spring Hill Road.