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<br />EXHIBIT D -MINING PLAN <br />Overview <br />The applicant proposes to develop the site as a sand and gravel mining and <br />processing operation. Approximately 56 acres of the total 80 acres will be mined <br />(see Exhibit C-1). After mining is finished, the excavated area will be completed <br />as two lined ponds, separated by a dam and isolated from the ground water <br />system by an impervious liner or possibly a slurry wall. The resultant ponds and <br />separation berm will be smaller than the jurisdictional cut-off, as specified in the <br />Colorado State Engineer's office guidance documents entitled Dam Safety <br />Project Review Guidelines and Rules and Regulations for Dam Safety and Dam <br />Construction. The long-term post-mining land use of the area around the <br />perimeter of the ponds is at this time undefined. The Reclamation Plan assumes <br />plans and costs for restoration of the mining area as two ponds and wildlife <br />habitat. <br />Mine Plan <br />Prior to the commencement of mining, the applicant may construct a slurry cut-off <br />wall around the two ponds, into shale bedrock to isolate the proposed <br />mining/pond area from the ground water system. <br />This provision is intended to: <br />1. Isolate the mine area to minimize mine dewatering costs, <br />