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• ~ks and Gesso, LLC <br />EXHIBIT D -MINING PLAN <br />Overview <br />The Applicant is proposing to recover approximately 750,000 tons (500,000 cubic <br />yards) of sand and gravel resources, over a two year period beginning in the fall <br />of 2001, from this historic, 34 acre mining location and to reclaim the site as a <br />water storage reservoir. Due to past mining operations, the mine area is now a <br />closed depression with highwalls near property boundaries. The floor of the <br />existing depression is approximately 25 to 30 feet below ground surface; and the <br />Applicant expects to remove another 8 to 14 feet of residual deposit, before <br />encountering bedrock. Dry mining methods will be employed; and recovered <br />material will be transported directly from the site, or it will be sorted, screened, <br />using mobile wash and screening equipment and then transported off site. The <br />post-mining land use will be lined water storage of approximately 1,000 acre feet, <br />to be conveyed to the City of Brighton. Following mining activity, slopes will be <br />backfilled to at a 3 tot grade from 5 feet above to 10 feet below the reservoir's <br />anticipated water line and to a 2 to 1 grade below that. The reservoir will be lined <br />with native clay material, taken from underlying strata, and settled fines from <br />washing operations, if available. Site reclamation is presented in detail in Exhibit <br />F of this submittal. <br />Mining Seouence <br />The existing mined depression will be substantially dewatered before beginning <br />mining operations. A ramp into the excavated area of the mine will be <br />constructed as shown by the accompanying Mine Plan Map. When mining <br />operations begin, projected for October 2001, dewatering trenches will be <br />constructed as necessary; however the existing grade slopes towards the <br />southwest corner of the excavated area, and only minimal trenching may be <br />124 Estates -Regular 112 Application 01029.WD <br />124`" Estates Partners 5 August 2001 <br />