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Revised June 13, 1984 <br />Kerr Coal Company - June 1984 <br />Bonding Liability Cost Estimate <br />The estimated costs presented here are those which would be <br />incurred if the mine were to be totally reclaimed in its current <br />state (June 1, 1989). <br />Following is the status of operations as of June 1, 1984: <br />Mining Status: <br />Pit 1 479,300 BCY removed <br />Pit 2 No disturbance <br />Backfilling Completed: <br />Existing Pit - 479,300 BCY from Pit 1 <br />Backfilling Required to be completed <br />Existing Pit - 8,120,700 CY from existing overburden <br />stockpile <br />Pit 1 - 479,300 CY from existing overburden stockpile <br />Acreage to be Graded and Revegetated (from September, 1983, <br />temporary cessation of operations map): <br />Existing Pit 82.00 acres <br />Pit No. 1 9.90 acres <br />Overburden Stockpile 44.20 acres <br />Surface Facilities 10.20 acres <br />Haul and Access Roads 12.20 acres <br />TOTAL 158.50 acres <br />Backfilling Costs <br />I. 8,120,700 cubic yards from existing overburden stockpile <br />to existing pit <br />Haul distance 2,000 feet <br />Haulage Equipment - Caterpillar 657 Push Pull Scrapers <br />Total Rental and Operating Cost - $178.54/hour <br />~s Production for 2,000 foot haul at 808 eff., 68 RR <br />OS grade = 408 bcy/hr <br />Correction for loose material in pile = 408 bcy x <br />1.24 swell = 506 cy/h r. <br /> <br />