2011-03-01_REVISION - M1977493 (6)

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Permit Amen *06) - Climax Mine is is CLIMAX MINE RECLAMATION COST ESTIMATE Financial Reporting Unit Rates Mine & Mill Complex Assumptions Building and concrete removal is addressed under demolition Final grading required to obtain stable contours and drainage Tasks Regrade Mine/Mill Complex area, assume 3' cutt ilI OR 3' soil cover over foundations across 228.9 ac area. From previous state based estimate Finish grade Mine/Mill Complex area. From previous state based estimate Haul and spread topsoil in Mine/Mill Complex area, assume 4" topsoil or biosolids. From previous state based estimate Timing End of Mine Life Total Cost $1,617,529 Calculations ' TaskUCrea Initial # of Equip Swell Factor Volume Qty Units Production Units Hrs Req'd Cost/Unit Equip Total Equip Cost CostlUnit Labor Total Labor CosVUnit Total Material '- Cost Materials Cost Totat Cost Regrade Mine/Mill Complex area, assu me T cut/FII OR 3' soil cover over foundations across 228.9 ac area. CAT D9N Dozer 1 1,107,876 1.00 1,107,876 (Cy) 231.00 (cy/hr) 4,796.00 $228.01 $1,093,523.43 $33.81 $162,130 $1,255,653 Finish grade Mine/Mill Complex area. # Grader Passes Hours with a fleet of 5 dozers 959.20 CAT 14G Grader 1 -- 228.9 acres 1.27 ac/hr 180.24 $118.09 $21,285 $32.37 $5,835 $27,120 Haul and spread topsoil in Mine/Mill Complex area, assume 4" topsoil or biosolids. CAT 773B Haul Truck 3 123,097 1.215 149,563 (Cy) 211.63 (cy/hr) 706.72 $215.83 $152,532 $30.02 $21,215 $173,747 CAT 988B Loader 1 Trucks Per Loader 3 236 $231.12 $54,447 $30.40 $7,163 $61,609 D7G 1 236 $138.24 $32,565 $33.81 $7,964 $40,529 CAT 14G Grader 1 236 $118.09 $27,819 $32.37 $7,626 $35,445 Water Truck 1 236 $69.43 $16,355 $30.02 $7,072 $23,426 - Hrs Req'd Total Equip Cost Total Labor Cost Total Cost TOTAL COSTS 7,584 $1,398,525 $219,004 $1,617,529 Exhibit L Feb 2011