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Permit Amendmjo Climax Mine • • <br />CLIMAX MINE RECLAMATION COST ESTIMATE <br />Financial Reoorting Unit Rates <br />North 40 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. <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 it deep = 1 ft x 43,560 sf / 27 = 1,613 cy/ac. <br />Timing <br />End of Mine Life <br />Total Cost <br />$1,306,005 <br />Calculations <br /> COWL! <br />Task(Aroa # of Equip Initial Swell Qty Units Production Units Him Req'd Cost/Unit Equip Total Equip Cost Cost/Unit Total Labor Cost nit Total Material Total Cost - <br /> Volume Factor Labor Mstarts Cost <br /> Is <br />General Regrade and Shaping' <br />CAT D9 1 427,445 cy 578.48 cy/hr 738.9 $ 228.01 $168,477.07 $33.81 $24,979.03 $193,456.10 <br />Load, Haul 8 Spread 7opsod/Biosolids 2 <br />CAT 7738 Haul Truck 3 427,445 1.1215 479,380 cy 171.00 cy/hr 2,803.4 $ 215.83 $605,055.83 $30.02 $84,155.78 $689,211.61 <br />988 Loader 1 Trucks Per Loader 3 934.5 $ 231.12 $215,977.36 $30.40 $28,411.97 $244,389.33 <br />CAT D7 1 479,380 cy 460.88 cy/hr 1,040A $ 138.24 $143,785.60 $33.81 $35,162.14 $178,947.74 <br />- Hrs Recd Total Equip Cost Total Labor Cost Total Material Cost Total Cost <br />TOTAL COSTS 5,517 $1,133,296 $172,709 $0 $1,306,005-' <br />Exhibit L F.1,2011