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Site <br />King Mines C1981035 Midterm Review No_ 7 <br />BULLDOZER WORK <br />Task description: King I - push ripped waste to tipple highwall <br />King Coal Mine Permit Action: Midterm Review No. 7 Permit/Job #: C1981035 <br />PROJECT IDENTIFICATION <br />Task #: 003 State <br />Date: 2/11/2015 County <br />User: SLB <br />Colorado <br />La Plata <br />Agency or organization name: DRMS <br />HOURLY EOUIPMENT COST <br />Basic Machine: <br />Cat D8T - 8SU <br />Horsepower: <br />310 <br />Blade Type: <br />Semi - Universal <br />Attachment: <br />3 -shank ripper <br />Shift Basis: <br />1 per day <br />Data Source: <br />(CRG) <br />Cost Breakdown <br />MATERIAL QUANTITIES <br />Initial Volume: 3,794 <br />Swell factor: 1.000 <br />Loose volume: 3,794 LCY <br />Source of estimated volume: Volume from Task 002, 20% swell <br />Source of estimated swell factor: Cat Handbook <br />HOURLY PRODUCTION <br />Average push distance: 200 feet <br />Unadjusted hourly production: 491.9 LCY /hr <br />Materials consistency description: Loose stockpile 1.2 <br />Average push gradient: 0% <br />Average site altitude: 7,400 feet <br />Material weight: 2,900 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 />Page 8 of 123 <br />Abbreviation: None <br />Filename: C035 -003 <br />0.750 <br />(AVG.) <br />1.200 <br />Utilization % <br />Ownership Cost/Hour: <br />$69.05 <br />1.000 <br />NA <br />Operating Cost/Hour: <br />$108.22 <br />100 <br />Ripper op. Cost/Hour: <br />$7.46 <br />100 <br />Operator Cost/Hour: <br />$38.01 <br />NA <br />Total unit Cost/Hour: $222.73 <br />Total Fleet Cost/flour: $222.73 <br />MATERIAL QUANTITIES <br />Initial Volume: 3,794 <br />Swell factor: 1.000 <br />Loose volume: 3,794 LCY <br />Source of estimated volume: Volume from Task 002, 20% swell <br />Source of estimated swell factor: Cat Handbook <br />HOURLY PRODUCTION <br />Average push distance: 200 feet <br />Unadjusted hourly production: 491.9 LCY /hr <br />Materials consistency description: Loose stockpile 1.2 <br />Average push gradient: 0% <br />Average site altitude: 7,400 feet <br />Material weight: 2,900 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 />Page 8 of 123 <br />Abbreviation: None <br />Filename: C035 -003 <br />0.750 <br />(AVG.) <br />1.200 <br />(CAT HB) <br />1.000 <br />(GEN.) <br />1.000 <br />(AVG.) <br />0.830 <br />(1 SHIFT /DAY) <br />