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<br />• <br />• <br />REFERRAL CALCULATIONS <br />III-1 Dozer Calculation <br />III-2 Grade South End of Pit <br />To: Push area 200' x 600' x 30' into pit for Smooth Grade Slope to Contour <br />Average Push distance - 100' <br />900 LCY /Hour Production (Page 1-54 CHB) <br />Use: 100,000 LCY (Gravel/Loose Material) for sloping to pit <br />So: 100,000 LCY - 900 LCY/Hour = 111.1 Hour <br />Use 120 Hours at $141/Hour <br />COST: 1 920 <br />To: Cast Blast 700,000 BCY into pit from east highwall. (See Attached bid letter). <br />Use: 1.15 pounds of Power to create 50% free yardage to pit as per WECSO letter. 50% free <br />yardage of 700,000 BCY swelled at 25%. Thus 700,000 BYC x ].25 = 875,000 LCY, <br />with 50% free thrown to pit. <br />So: 437,500 LCY Displaced to pit from highwall <br />1987 D9L <br />COST: 71 400 <br />III-3 <br />Rough Grade East Highwall <br />1987 D9L <br />III-4 <br />To: Use 1987 D9L Dozer to rough grade east highwall materials which were shot to pit. <br />437,500 LCY were shot into pit. Rough grade an additional 100,000 LCY from Shot <br />Materials to Rough grade into pit and shot area on east of Highwall. Average Ruslt <br />distance 300' S00 LCY/Hr -Production (Page 1-54 CHB). <br />Use: 100,000 LCY to Rough Grade <br />So: 100,000 LCY _ 500 LCY/Hr = 200 Hours <br />Use 225 Hours at $141/Hr. <br />COST: 31 72S <br />Rough Grade North End of Pit <br />1987 D9L <br />To: Rough Grade North end of Pit. Estimate 50,000 LCY Materials at North End of Pit. <br />Push Distance 200 Feet. <br />700 LCY/Hr. Production <br />So: 50,000 LCY - 700 LCY/Hr. = 71.43 Hours <br />Use 80 Hours @ $141/Hr <br />COST: 11 280 <br />JAN IS 1993 <br />