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EXHIBIT L <br /> (C.6) Task Cost - Ripping Compacted Areas <br /> Ripping compacted areas,haul roads,plant footprint,disturbed areas. <br /> BULLDOZER RIPPING WORK <br /> Ripping compacted areas <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D8T-8SU Horsepower: 310 <br /> Ripper Attachment: 3-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization% <br /> Ownership Cost/Hour: Operating $124.63 NA <br /> Cost/Hour: Ripper Ownership $98.71 100 <br /> Cost/Hour: Ripper Operating $12.51 NA <br /> Cost/Hour: Operator Cost/Hour: $10.05 100 <br /> Total Unit Cost/Hour: $49.48 NA <br /> $295.40 <br /> Total Fleet Cost/Hour: $295.40 <br /> MATERIAL QUANTITIES Alternate Selected estimating method: Area <br /> Methods: <br /> Seismic: NA Bank Volume: NA BCY NA <br /> Area: 6.00 acres Rip Depth(ft): 2.00 Volume: 19,360 BCY or CCY <br /> Source of estimated quantity: Staff estimates, 2018 annual report <br /> HOURLY PRODUCTION <br /> Seismic: <br /> Seismic Velocity: NA feet/second <br /> Area: <br /> Average Ripping Depth: 2.56 feet/pass <br /> Average Ripping Width: 7.08 feet/pass <br /> Average Ripping Length: 200.00 feet/pass <br /> Average Dozer Speed: 88.00 feet/minute <br /> Average Maneuver Time: 0.25 minutes/pass <br /> Production per unit area: 0.773 acres/hour <br /> Job Condition Correction Factors <br /> Unadjusted Hourly Unit Production: 0.773 Acres/hr <br /> Site Altitude: 6,225 feet <br /> Altitude Adj: Job 1.00 (CAT HB) <br /> Efficiency: Net 0.83 (1 shift/day) <br /> Correction: 0.83 multiplier <br /> Adjusted Hourly Unit Production: 0.64 Acres/hr <br /> Adjusted Hourly Fleet Production: 0.64 Acres/hr <br /> JOB TIME AND COST Fleet <br /> size: 2 Grader(s) Total job time: 39.67 Hours <br /> Unit cost: $383.620 Per acre Total job cost: $19,532.12 <br /> 94 <br /> HARDROCK/METAL MINING REGULAR(112)APPLICATION Au Pt Industries LLC I PO Box 1424-Edwards,Colorado 81632 1970 306 1 784 <br />