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Permit Ame11me10 Climax Mine • <br />=MIN <br />E RECLAMATION COST ESTIMATE <br />l Regorting Unit Rates <br />McNulty OSF <br />Assumptions: (E/F Dump basis) <br />Mine for Closure Approach is key. <br />(1) Truck Fleet, Loader, and Dozers in 2000 Reclamation Cost Estimate are reasonable <br />(2) Soil Replacement Thickness is 12 inches per HMI Soil Quantities spreadhseet Feb-2010; Swell Factor = 1.215 from 2000 Cost Estimate (See Map for Locations of Soil Replacemene) <br />(3) Revegetation will follow soil replacement and is covered elsewhere. <br />Tasks: <br />(1) General regrade and shaping at 1 ft deep per acre = 1 it x 43,560 sf / 27 = 1,613 cy/ac. <br />(2) Replace Topsoil at 1 ft deep = 1 ft x 43,560 sf / 27 = 1,613 cy/ac. <br />Timing <br />End of Mine Life <br />Total Cost <br />$2,439,518 <br />Calculations <br />• <br />` Initial Swell- Cost/Unit nit Total Material <br />Task/Area # of Equip Dry Units Production Units Hrs Req'd CosVUnit Equip Total Equip Cosf Total Labor Cost Total Cost <br />Volume Factor Labor Material Cost " <br />Is <br />General Regrade and Shaping' <br />CAT D9 1 798,435 cy 578.48 cy/hr 1,380.2 $ 228.01 $314,702.46 $33.81 $46,658.94 <br />$361,361.40 <br />Load, Haul 8 Spread Topsoil/Biosolids 2 <br />CAT 7738 Haul Truck 3 798,435 1.1215 895,445 cy 171.00 cy/hr 5,236.5 $ 215.83 $1,130,198.62 $30.02 $157,196.64 $1,287,395.27 <br />988 Loader 1 Trucks Per Loader 3 1,745.5 $ 231.12 $403,429.40 $30.40 $53,071 Al $456,500.82 <br />CAT D7 1 895,445 cy 460.88 cy/hr 1,942.9 $ 138.24 $268,580.64 $33.81 $65,680.23 $334,260.88 <br /> Him Req'd Total Equip Cost Total Labor Cost Total Material Cosl Total Cost <br />TOTAL COSTS 10,305 $2,116,911 $322,607 $0 $2,439,518 <br />Exhibit L Feb 2011