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TWENTYMILE COAL COMPANY - FOIDEL CREEK MINE (C-82-056) <br />6MN RESERVOIR GEOTECHNICAL INVESTIGATIONS (TR07-62) <br />RECLAMATION COST ESTIMATE <br />Plua and Seal Piezometer Boreholes <br />Cut-off 1.5-inch PVC pipe, and plug piezometer with concrete grout - <br />2 piezometers x $50/each $100 <br />Baclcfill, level. replace topsoil, and reseed surface disturbance <br />Because all surface disturbance associated with the geotechnical investigations falls within <br />the larger surface disturbance footprint for the 6MN Mine Water Storage Reservoir (TR07- <br />61), these costs are covered by the existing reclamation bond <br />Subtotal Direct Costs <br />CDRMS Administrative and Overhead Costs (@ 8%) <br />Total Estimated Reclamation Cost <br />100 <br />8 <br />$108 <br />TR07-62 A-137 09/02/07 <br />