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• • <br />Table 1.4.0. Cakulatlon of Drill and Blast Coats <br />Ddli end Blest Equipment Costs <br />Operation 8 <br />Equip Ownership Overhaul AtGChmetds Operator Totaf <br />single shift <br />REEDRILLSK-501 77.34 260.10 0.00 30.85 388.09 <br />Cel D10R Dozer 81.25 112.82 0 30.65 204.72 <br />Blasting Cost 50.11 per cubic yard (Trapper hiMOdwl coal) <br />Pll Mlghwall Leng tt Drill Ho0rs (1) Drill S Benching Hrs (2 Bench f l ;yds Blasted (3 Bleating S Total S Commen4 <br />N D/E P9 Ne 71 26,220 40 8,189 379,900 41,789 78,197 north ezeevetion only <br />F PIt DIpIMe-hlghwell 5,300 138 50,804 85 17,380 738,111 80,972 149,137 <br />F Ph Sidkaline - highwell 2,158 0 0 0 0 0 0 0 boxcut <br />EaslF Pit-highweil 2,814 73 28,974 IS 9,217 390,833 42,992 79,183 <br />O Plt-highwell 2,682 70 25,709 43 8,785 372,500 40.975 75,189 <br />Ash Dump - highwell 3000 78 28 757 d8 9 827 416,887 45,833 84,417 <br />Total 15,952 431 158,484 261 53,376 2,298,Ot1 252,581 464,403 <br />(1) based on 30x30' hunlen erid spacing, 25 fl evg depth, pe8em width et 150',180 feel per ddll hour <br />(2) 15 hra per 1000' of highvsll <br />~, (3) (highwell length x 150' width x 25' evp depth)27 <br />w <br />ro <br />