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EXHIBIT L WORST CASE RECLAMATION SCENARIO <br /> Mining at the Bradford Mesa Quarry will mine a total of 355.4 acres with a total of 446.3 acres <br /> of disturbed land. Given the length of time it will take to mine this entire site (>40 years),the <br /> Operator will phase the mining plan. <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 /> placement of topsoil for a projected 90 acres of disturbed land at the time of final reclamation: 30 <br /> acre processing area and three approximately 20 acres phases. An additional 10 acres of topsoil <br /> will be necessary to reclaim the current 10 acre area of open dump. <br /> The following reclamation tasks will be required. <br /> • Mobilization of equipment<45 miles= $20,000.00. <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 20 feet. Roughly 6,666 CY of dozer work at$0.50/CY= $3,333.00. <br /> • Topsoil and replacement topsoil (waste fines) surfacing= 100 acres at 6 inches deep = <br /> 80,666 CY at$l.50/CY= $120,999.00. <br /> • Rangeland revegetation and mulching of the 100 acres disturbed area. $820/acre native <br /> grass seed mix+$500/acre mulch= $132,000.00. <br /> Table L-1 Expansion Reclamation Task and Cost Estimate <br /> Activity Description Time (Months) Cost($) <br /> Mobilization <45 mile 1 20,000.00 <br /> Highwall knock down .5 3,333.00 <br /> Place Topsoil 2 120,999.00 <br /> Revegetation of disturbed areas. Includes seeding and mulching. 3 132,000.00 <br /> Subtotal 6.5 $262,332.00 <br /> DRMS Costs(28%x direct costs) $73,452.96 <br /> Final Reclamation Bond Amount $335,784.96 <br /> The final reclamation bond amount should be set at$335,784.96. <br /> Bradford Mesa Quarry Grcg l e kki and Assoeia M PIRA: <br /> August 2019 L-1 <br />