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TWENTYMILE COAL, LLC — FOIDEL CREEK MINE (C -82 -056) <br />WCR OFFSET DRILLING (MR14 -280) <br />RECLAMATION COST ESTIMATE <br />Plug and Seal Drillholes <br />Cement 20 drillholes — (20 x 7.5cy /hole x $120 /cy) $18,000 <br />Seal 20 drillholes w/ plug -gel or bentonite pellets — (20 x 54cy /hole x $100 /cy) 108,000 <br />Rig and Labor Cost (20 x $4,370) 87,400 <br />$213,400 <br />Backfill, Grade, Replace Soil, and Reseed Surface Disturbance <br />Backfill, grade, and soil replacement, 20 pads — (20 x $5,050) $101,000 <br />Grade and replace soil, 7,150' of road (4.0 acres x $1,600 /acre) 7,400 <br />Reseed, 20 pads — (20 x 1.4 acres x $300 /acre) 8,400 <br />Reseed, 7,150' of road (4.0 acres x $300 /acre) 1,200 <br />$118,000 <br />Subtotal Direct Costs $331,400 <br />CDRMS Administrative and Overhead Costs (@ 8 %) $26,500 <br />Total Estimated Reclamation Cost $357,900 <br />MR 12 -262 04/29/12 <br />