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Paul Banks and Associates, LLC <br /> Exhibit L-ReclamationCosts <br /> Reclamation costs for this mining permit were based on the maximum disturbed affected <br /> acreage of 94� 1 15 acre at any given time: including plant and stockpile areas. All <br /> lands shall be excluded that would be otherwise included as land affected <br /> but which have been reclaimed in accordance with an approved plan. The <br /> DRMS approved the current reclamation bond of �54°-^7Q�"ember 30 2020 <br /> $826,498 on August 22, 2024 <br /> Cost Estimate by Maior Phase of Reclamation (2024 Cost Estimate for 90.3 affected <br /> acres . <br /> 1. Filling Settling Pond. 0.51 acres, 7.5 ft. deep, Average push 250 ft. ($6,255) <br /> 2. Fill Process Ponds and Mining Area. 8.75 acres, 7.5-15 ft. deep, 750 ft. haul. <br /> ($258,675) <br /> 3. Replace Topsoil. 77.3 acres, 7 inches deep, Average haul 1,000 ft. ($122,630) <br /> Total Affected 90.3 acres -13.0 acres Reseeded = 77.3 acres; 81,374 LCY <br /> 4. Revegetate. 77.3 acres, Fertilize, Tilling, Seeding. Alkali Sacaton(1.5 Ib./ac), <br /> Switchgrass (4.0 Ib./ac.), Galletta 11.0 Ib./ac.), Western Wheatgrass, (16.0 <br /> Ib./ac.). <br /> Total Affected 90.3 acres -13.0 acres Reseeded = 77.3 acres <br /> Seeding: 77.3 acre x $2,406.55/ac = $186,026.32 <br /> Reseeding: 90.3 acre x 15% failure x $678.56/ac = $9,191.10 <br /> Total Revegetation Cost: $195,217.41 <br /> 5. Equipment Mobilization. Nearest town: Pueblo. ($26,309) <br /> 6. Indirect Costs. Overhead, Profit, Legal, Engineering, Project Management. <br /> $151,075 (estimated) <br /> As discussed in Exhibit E - Reclamation Plan, a slurry wall of approximately 13,094 feet <br /> in length is required for Mine Area 1. A planning number for the cost of slurry wall <br /> construction is $3.00 per square foot. Thus, 13,094 feet long x 35 feet deep equals <br /> 458,290 square feet. Constructing this slurry wall would therefore cost approximately <br /> $1,375,000. Mine Area 2 impounds approximately 353 acre-feet of water. This requires <br /> a slurry wall approximately 6,565 feet long. Thus, 6,565 feet x 35 feet deep equals <br /> 229,775 square feet. Constructing the slurry wall would therefore cost approximately <br /> $689,000. <br />