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• earth ~ ~asl .
<br />COLOWYO COAL COMPANY
<br />1997 PERMIT RENEWAL
<br />EARTHWORK COSTS
<br />CAST BLASTING
<br />REVISED, MAY 23, 1997
<br /> Blast Casling Volumes Equipment Produclivilly 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 Remaininf Powder Drill Hole Producllor Time Drill Cosl Drill Cost Cost Cosl
<br />Area Descripilon (Lcy) {Bcy) (Bcy) (Bcy) (%) (Lcy) (Lcy) (Lbs) (Feel) (FeeVHr.) (Hours)($lHr.) ($) ($/Bcy) ($)
<br />West Pit Summary
<br />Highwall 3,970,745 3,176,596 1,511,055 1,665,541 45.57% 860,735 3,110,010 1,662,161 61,953 66.6 930 $125.00 $118,279 $0.1410 $213,059
<br />Total West Pil 3,970,745 3, 176,59fi 1,511,055 1.665,541 45.57% 660,735 3,110,010 1,662,161 61,953 66.6 930 $125.00 $116,279 $0.1410 $213,059
<br />East Pit Summary
<br />Highwall 5,731,236 4,564,969 1,920,323 2,664,666 45.57% 1,093,664 4,637,372 2,112,355 76,733 66.6 1,102 $125.00 $147,773 $0.1410 $270,766
<br />Total Easl Pil 5,731,236 4,564,969 1,920,323 2,664,666 45.57% 1,093,864 4,637,372 2,112,355 78,733 66.6 1,162 $125.00 $147,773 $0.1410 $270,766
<br />Section t6 Pil Srimmarv
<br />Highwall 259,905 207,924 0 207,924 0 0 259,905 0 0 66.6 0 $125.00 $0 $0.1410 $0
<br />Total Section 16 Pil 259,905 207,924 0 0 0 0 259,905 0 0 66.6 0 $125.00 $0 $0.1410 $0
<br />Total Costs
<br />West Pit Costs 3,970,745 3,176,596 1,511,055 1,665,541 45.57% 860,735 3,110,010 1,662,161 61,953 66.6 930 $125.00 $116,279 $0.1410 $213,059
<br />East Pil Costs 5,731,236 4,584,989 1,920,323 2,664,666 46% 1,093,664 4,637,372 2,112,355 78,733 66.6 1,162 $125.00 5147,773 $0.1410 $270,766
<br />Section l6 Pit Costs 0 0 0 0 0 0 0 0 0 66.6 1,182 $125.00 $147,773 $0.1410 $0
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