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temporarily stockpiled outside of the floodway within the designated stockpile area on the south <br />side of the property, as identified on Exhibit C. Once the deposit from the southeast corner has <br />been mined, the topsoil and overburden will be stripped from the center of the cell and the material <br />will be used to reclaim the southeast corner where possible as to not impede on the conveyor. Any <br />material from the center that cannot be placed in the southeast corner will be placed in the topsoil <br />and overburden stockpile area. The center of the cell will then be mined. Following mining of the <br />center of the cell the topsoil and overburden will be stripped from the north end of the cell and the <br />material will be used to reclaim the center of the cell. The north end of the site will then be mined. <br />Upon completion of the mining of the north end of the cell, the area will be reclaimed using some of <br />the overburden and topsoil stockpiled on top of the mining cell on the south side of the site. Once <br />the north end of the cell has been partially reclaimed with the stockpiled material, the southwest <br />corner of the site will be stripped of the topsoil and overburden and that material will be used to <br />complete the reclamation of the north end of the cell. The southwest corner of the cell will then be <br />mined and reclaimed with the remaining stockpiled topsoil as well as the insitu overburden. <br />Because the site will be concurrently mined and reclaimed, Lafarge anticipates that there will be no <br />more than 3500 linear feet of exposed slope that needs to be graded for reclamation. There will be <br />no permanent stockpiles at this site; all extra overburden will be used to create undulating <br />shorelines. Overburden and stockpiled topsoil will be seeded as appropriate to prevent erosion. <br />A dewatering trench will be constructed around the perimeter of the bottom of the mining cell and <br />sump holes will be installed. The sump holes and dewatering trenches will allow sediment to settle <br />before the water is pumped to the Cache La Poudre River in accordance with Colorado/NPDES <br />discharge permit regulations. <br />When the alluvium is sufficiently dry, front -end loaders will excavate the material and deposit it on <br />conveyors. The mining face will be nearly vertical to 0.5:1 slope. The conveyors will transport the <br />material from the Iverson Mine, across the parcel owned by the City of Greeley to the 35 Avenue <br />Mine plant site for processing. No processing will occur at the Iverson Mine. <br />All surface water within the mine areas will drain internally. A Drainage Report will be prepared <br />for Weld County and it will provide details of the conveyance of both off -site and on -site surface <br />water through the site. Direct precipitation falling on a mine cell is collected in the perimeter <br />dewatering trench and pumped out. There will not be any uncontrolled releases of surface water <br />and sediment from mining areas. Storm water collected in the open mine will be managed in <br />accordance with Colorado/NPDES discharge permit requirements. Sediment generated from <br />localized storm water runoff and surface drainage will be managed according to the Stormwater <br />Management Plan, enclosed in Exhibit G (Attachment G -2). <br />Water rights at the site will be used for dust control operations along the roads, stockpiles and <br />berms. The water balance discussed in Exhibit G estimates the gallons per week necessary to limit <br />dust emissions. The water will be supplied using a 2,500 gallon water truck. <br />No explosives are planned to be used. <br />Iverson Mine <br />DRMS 112 Reclamation Permit Application <br />Page D2 of D4 <br />