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• <br />• <br />• <br />(c) Properly drain, fill, or level off any pit or excavation so as to <br />make the same safe and healthful as the permitting authority may determine; <br />Final grading, seeding and landscaping will level of the excavation. <br />(d) Limit the depth of the excavation to an elevation no lower <br />than the minimum floor elevation for building construction as established by the <br />city engineer so as not to diminish development potential of the parcel; <br />Excavation of the flood plain mitigation area will reach an elevation <br />of 883 5 feet above the normal water level and 3 feet below the 100 <br />year flood level. <br />(e) Limit any fill material to clean fill, defined as rock, sand, <br />gravel, clay, or other like and similar non - decomposable material. Concrete, <br />asphalt, metal, wood, and other debris shall be prohibited; <br />Anoka County and the contractor will ensure clean fill is hauled in <br />and placed in all areas with fill being placed. <br />(f) Require that all decomposable material, or other unsuitable <br />foundation material, be removed from an area before deposition of fill begins; <br />Construction specifications require the contractor to properly <br />dispose of any unsuitable material and show proof of that disposal. <br />(g) Prepare a site plan showing existing and proposed grade <br />elevations and effect of storm water drainage on adjacent areas; <br />See attached plans. <br />(h) Specify a time when the excavation or and reclamation <br />project shall be completed; <br />Substantial completion date is March 31, 2010 and the final <br />completion date for erosion control and landscaping activities is July <br />1, 2010. <br />(i) Place a minimum of 4 inches of top soil over the completed <br />project and establish appropriate ground cover within 60 days of completion, or in <br />a time period consistent with the city's stormwater management and pollution <br />prevention plan; <br />Construction specifications require the contractor to place 6 inches <br />of topsoil in the excavation areas. The erosion control plans require <br />Construction of replacement bridges at Chomonix Golf Course <br />Page 11 of 13 <br />-41- <br />