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EXHIBIT L <br /> (C.4) Task Cost - Grading of Mining Phase <br /> Topsoil replacement and grading. The scraper may be substituted with wheeled loader,haul truck and <br /> dozer at a similar cost. <br /> BULLDOZER WORK <br /> Grading in mining phase <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D8T- 8SU <br /> Horsepower: 310 <br /> Blade Type: Semi-Universal <br /> Attachment: NA <br /> Shift Basis: Data 1 per day <br /> Source: (CRG) <br /> Cost Breakdown: <br /> Utilization % <br /> Ownership Cost/Hour: $103.86 NA <br /> Operating Cost/Hour: $82.26 100 <br /> Ripper own. Cost/Hour: $0.00 NA <br /> Ripper op. Cost/Hour: $0.00 0 <br /> Operator Cost/Hour: $41.24 NA <br /> Total unit Cost/Hour:Total $272.83 <br /> Fleet Cost/Hour: $272.83 <br /> MATERIAL QUANTITIES <br /> Initial Volume: 695 <br /> Swell factor: 1.215 <br /> Loose volume: 844 LCY <br /> Source of estimated volume: Source Half of transported amount <br /> of estimated swell factor: Cat Handbook <br /> HOURLY PRODUCTION <br /> Average push distance: Unadjusted 200 feet <br /> hourly production: 491.9 LCY/hr <br /> Materials consistency description: Partly consolidated stockpile 1.1 <br /> Average push gradient: 0 % <br /> Average site altitude: 6,225 feet <br /> Material weight: 1,600 Ibs/LCY <br /> Weight description: Top Soil <br /> Job Condition Correction Factor Source <br /> Operator Skill: Material 0.750 (AVG.) <br /> consistency: Dozing 1.100 (CAT HB) <br /> method: Visibility: 1.000 (GEN.) <br /> 1.000 (AVG.) <br /> 90 <br /> HARDROCK/METAL MINING REGULAR(112)APPLICATION Au Pt Industries LLC I PO Box 1424-Edwards,Colorado 81632 1970 306 1 784 <br />