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<br />E~anks and Gesso, LLC <br />Map, shows both a typical final configuration of the reservoir shorelines and a <br />cross-section through the mined pit-slopes showing how the slopes will be <br />backfilled to final grade. <br />There will be a large oversupply of topsoil obtained from the affected areas of <br />this mining permit. Overburden averages 3 ft. over the 78-acre area to be <br />stripped and excavated. The reclaimed shoreline, setbacks, and re-aligned ditch <br />areas amount to approximately 8 acres. Excess topsoil will be mixed with <br />approximately 3 ft. of scraped, weathered-shale bedrock from the pit floor to <br />construct the sloped pit-walls. The pre-mining process will salvage <br />approximately 411,400 cubic yards of topsoil and during the mining process, <br />approximately 370,000 cubic yards of weathered shale bedrock could be <br />salvaged to use as part of the backfill mix for the pit slopes and the reconstructed <br />Lupton Bottom Ditch. Approximately 177,000 cubic yards of backfill will be <br />required to reconstruct the ditch and approximately 384,400 cubic yards of <br />backfill will be required to slope the near-vertically mined pit walls. The topsoil <br />requirement as plant-growth medium for the disturbed surface acreage will be <br />approximately 12,400 cubic yards to cover the 8 acres at 12 inches deep. As <br />can be seen, there will be a large excess of topsoil stripped from the site. The <br />amount of topsoil required for surface reclamation as plant-growth medium is <br />minimal compared to the amount that is available. The operator will incorporate <br />excess backfill (comprised of topsoil and scraped shale bedrock) to create a <br />more naturally appearing undulating shoreline at the reclaimed site. Exhibit F, <br />Ft. Lupton Sand and Gravel Mine.CDMG.112 Perrnd ~ g 99024.WD <br />L.G. Everist, Inc. December, 1999 <br />