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Bowie No. 2 Mine C1996083 Technical Revision No. 84- Second Adequacy Review <br />Average push <br />gradient: <br />Average site altitude <br />Material weight <br />0% <br />5,900 feet <br />00 lbs /LCY <br />Weight description: Decomposed rock - 50% Rock, 50% Earth <br />Job Condition Correction Factor Source <br />Operator Skill: <br />Material consistency: <br />Dozing method: <br />Visibility: <br />Job efficiency: <br />Spoil pile: <br />Push gradient: <br />Altitude: <br />Material Weight: <br />Blade type: <br />0.750 <br />(AVG.) <br />0.900 <br />(CAT HB)) <br />1.000 <br />(GEN.) <br />1.000 <br />(AVG.) <br />0.830 <br />(1 SHIFT /DAY) <br />0.800 <br />(FND -RF) <br />1.000 <br />(CAT HB) <br />1.000 <br />(CAT HB) <br />0.793 <br />(CAT HB) <br />1.000 <br />(PAT) <br />Net correction: 0.3554 <br />Adjusted unit <br />610.90 LCY /hr <br />production: <br />Adjusted fleet <br />610.9 LCY /hr <br />production: <br />JOB TIME AND COST <br />Fleet size: <br />1 Dozer(s) <br />Unit cost: <br />$0.543/LCY <br />Total job time: <br />4.35 Hours <br />Total job cost: <br />$1,443.43 <br />CIRCES Cost Estimating Software <br />Page 15 of 15 <br />