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EXHIBIT L WORST CASE RECLAMATION SCENARIO <br /> Mining at the Garrett Pit will mine an additional 628 (disturbed area) acres of land. Given the <br /> length of time it will take to mine this entire site (>100 years), the operator will not phase the <br /> operation and the bond. The current bond is $181,755.00. <br /> Due to the type of mining, dozer push-down, no backfilling is necessary to create 3H:1 V <br /> reclamation slopes. The maximum 300 foot active highwall will be knocked down to create a <br /> 3H:1 V slope, where needed. Therefore, bond calculations are based on highwall knock down and <br /> topsoil surfacing for a projected 60 acres of disturbed land at the time of final reclamation. <br /> In addition to the bond posted as of June 2017, the following reclamation tasks will be required. <br /> • Mobilization of equipment<45 miles = $6,000.00. <br /> • Active highwall knockdown: 300 feet of roughly 1 H:1 V slope bulldozed down to 3H:1 V <br /> at a final height of 10 feet. Roughly 1,700 CY of dozer work at $0.50/CY = $850.00. <br /> Multiplied by two potential lifts of maximum 20 foot highwall = $1,700.00. <br /> • Topsoil surfacing= 60 acres at 2.5 inches deep = 20,137 CY at $1.50/CY = $30,205.50. <br /> • Rangeland revegetation and mulching of the 60 acres disturbed area. $820/acre rangeland <br /> seed mix + $500/acre mulch = $79,200.00. <br /> Table L-1 Expansion Reclamation Task and Cost Estimate <br /> Activity Description Time(Months) Cost($) <br /> Mobilization<45 mile 1 6,000.00 <br /> Highwall knock down .5 1,700.00 <br /> Topsoil surfacing 1 30,205.50" <br /> Revegetation of disturbed areas. Includes seeding and mulching. 1 79,200.00 <br /> Subtotal; 3.5 $117,105.50 <br /> DRMS Costs(28%x direct costs) $32,789.54 <br /> Final Reclamation Bond Amount $149,895.04 <br /> The final reclamation bond amount should be set at $149,895.04. <br /> Garrett Pit Cn%t.twW sad Auodatm PLIA' <br /> February 2018 L-1 <br />