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Coal Ridge No. 1 Mine C-1984-065: MT-08 April 2, 2019 <br /> <br />Page 11 of 27 <br /> <br /> <br />BULLDOZER WORK <br /> <br />Task description: Backfill Sediment Pond A <br />Site: Coal Ridge No. 1 Mine Permit Action: MT8 Permit/Job#: C1984065 <br /> <br />PROJECT IDENTIFICATION <br />Task #: 006 State: Colorado Abbreviation: None <br />Date: 3/18/2019 County: Garfield Filename: C1984065 <br />User: ZTT <br />Agency or organization name: DRMS <br /> <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D9T - 9SU <br />Horsepower: 405 <br />Blade Type: Semi-Universal <br />Attachment: NA <br />Shift Basis: 1 per day <br />Data Source: (CRG) <br />Cost Breakdown: <br /> Utilization % <br />Ownership Cost/Hour: $110.70 NA <br />Operating Cost/Hour: $95.46 100 <br />Ripper own. Cost/Hour: $0.00 NA <br />Ripper op. Cost/Hour: $0.00 0 <br />Operator Cost/Hour: $41.52 NA <br />Total unit Cost/Hour: $247.68 <br />Total Fleet Cost/Hour: $247.68 <br /> <br />MATERIAL QUANTITIES <br />Initial Volume: 10,785 <br />Swell factor: 1.165 <br />Loose volume: 12,565 LCY <br />Source of estimated volume: Plate 4-1 <br />Source of estimated swell factor: Cat Handbook <br /> <br />HOURLY PRODUCTION <br />Average push distance: 100 feet <br />Unadjusted hourly production: 1,243.2 LCY/hr <br /> <br />Materials consistency description: Compacted fill or embankment 0.9 <br /> <br />Average push gradient: -10 % <br />Average site altitude: 5,700 feet <br /> <br />Material weight: 2,900 lbs/LCY <br /> <br />Weight description: Decomposed rock - 50% Rock, 50% Earth