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CDPHE discharge permit will be obtained for this discharge. Once the pit is expanded, all runoff <br />from the excavation area will be trapped in the pit and will be directed to the sediment pond. <br />2) Pumping from the pond will utilize gravel berms around the inlet to provide filtering of <br />sediment before the water is pumped. <br />3) The northern edge of the visual berm along the north side of the permit area and the western <br />edge of the western berm will not drain to the excavation and the sediment pond. For this area, <br />alternate sediment control is planned utilizing a rapid seeding of quick growing oats. Since the <br />berm will be seeded with a rapidly growing cover crop of oats followed by the permanent seed <br />mix, the berm should stabilize quickly to minimize erosion. The sections of the berm that are <br />seeded in this manner with oats will be immediately watered to provide quick vegetative cover. <br />In any case where the oats cannot be planted or watered within a reasonable period of time, <br />standard small size hay bales (50 -601b size) will be installed in a tight row along the bottom toe <br />of the berm, which will be staked into the ground using rebar that extends at least 18" below <br />ground level. <br />4) The overburden stockpile area is completely disturbed from past gravel storage activities and <br />possibly other commercial related activities. There is no DRMS permit for this area as of <br />November 2012. A berm of approximately 2 feet height will be placed on the inside of the <br />cyclone fence that surrounds the perimeter of this area. The fence will remain for the permit life <br />and the excess overburden will be stored here from the excavation of the initial cut in Pit 1. Once <br />the final cut of Pit 3 is mined out, any remaining overburden in this stockpile will be used for <br />backfilling. The 2 feet high berm will prevent any discharge from the area for the 100 year event. <br />The trucks hauling the overburden to and from the area will ride over a milder portion of the this <br />berm to facilitate the truck travel, as shown on Map C -2. <br />Otter Creek Pit December 12 G - <br />