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TWENTYMILE COAL, LLC - FOIDEL CREEK MINE (C -82 -056) <br />MONITORING WELL II AND WC -028 (MR14 -281) <br />RECLAMATION COST ESTIMATE <br />Plug and Seal Drillholes <br />Cement 2 drillholes — (2 x 7.5cy /hole x $120 /cy) $1,800 <br />Seal 2 drillholes w/ plug -gel or bentonite pellets — (2 x 54cy /hole x $100 /cy) 10,800 <br />Rig and Labor Cost (2 x $4,370) 8,740 <br />$20,340 <br />Backfill, Grade, Replace Soil, and Reseed Surface Disturbance <br />Backfill, grade, and soil replacement, 2 pads — (2 x $5,050) $10,100 <br />Grade and replace soil, 5,700' of road (3.3 acres x $1,600 /acre) 5,280 <br />Reseed, 2 pads — (2 x 1.4 acres x $300 /acre) 840 <br />Reseed, 5,700' of road (3.3 acres x $300 /acre) 990 <br />$17,210 <br />Subtotal Direct Costs $37,550 <br />CDRMS Administrative and Overhead Costs (@ 8 %) $3,000 <br />Total Estimated Reclamation Cost $40,550 <br />MR12 -262 04/29/12 <br />