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• earth <br />COLOWYO COAL COMPANY <br />1997 PERMIT RENEWAL <br />EARTHWORK COSTS <br />CAST BLASTING <br />REVISED, MAY 23, 1997 <br />Blast Casting Volumes Equipment Producliviliy Down Hole Service <br /> Total <br />Blasted Ripped Cast Cast Blast Material Total Total Drill Drill Total Downhole Downhole <br />Volume Volume Volume Volume Blast Volume Remaininc Powder Drill Hole Produclior Time Drill Cosl Drill Cosl Cost Cost <br />Area Descripilon (Lcy) (Bcy) (Bcy) (Bcy) (%,) (Lcy) (Lcy) (Lbs) (Feet) (FeeVHr,) (Hours) ($IHr.) ($) ($/Bcy) ($) <br />Total all Area Costs 9,701,901 7,761,585 3,431,378 4,330,207 <br />1,954,599 7,747,382 3,774,516 140,6e6 <br />•asl • <br />3,295 $125.00 $411,824 $463,824 <br />Page 2 of 2 <br />D-G <br />