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• RECLAMATION COST ESTIMATE <br />MINE NUMBER 2 PORTAL AR <br />BACKFILLING: $ 3,851.77 <br /> <br />LS-98 backhoe <br />Total volume = 6700 Cu. Yd. <br />Productivity = 218 Cu. Yd./Hr. <br />Cost Calculation = 6700 Cu. Yd. _ 218 Cu. Yd./Hr. <br />x $54.46/Hr. _ $1,673.77 <br />Sealing of entries: <br />Average cast for sealing of entry = $726.00/entry <br />Total entries = 3 <br />Cost Calculation = 3 entries x $726.00/entry = $2,178.00 <br />• GRADING: $ 56.75 <br />12G motor grader <br />Total area = 2.25 Ac. <br />Productivity = 1.22 Ac./Hr. <br />Cost Calculation = 2.25 Ac. _ 1.22 Ac./Hr. x $30.77/Hr. <br />RIPPING THE REGRADED SURFACE: <br />$ 56.75 <br />12G motor grader <br />Total = 2.25 Ac. <br />Productivity = 1.22 Ac./Hr. <br />' Cost Calculation - 2.25 Ac. _ 1.22 Ac./Hr. x $30.77/Hr. <br /> <br />