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EXHIBIT L WORST CASE RECLAMATION SCENARIO <br /> Mining at the Base Products pit is currently limited to 16 acres of land. This area will be mined <br /> down further before mining continues to Areas 2 through 10. Given the length of time it will take <br /> to mine this entire site (>20 years), the operator will phase the operation and the bond. Phase 1 <br /> consists of the current active pit area, and its associated bond of$32,303. Phase 2 will add <br /> disturbance to the current area that will consist of the active mining face and floor. These five <br /> acres will move throughout the rest of the mine's life, through Areas 2-10. <br /> Phase 2 mining may not commence until the additional bond has been posted. <br /> 2. Phase 1 —Current Bond <br /> Currently 16 acres of area can be disturbed under the existing bond of$32,303. <br /> 3. Phase 2—Mining in Areas 2-10 <br /> In addition to the bond posted for Phase 1, the following reclamation tasks will be required. <br /> • Active highwall area backfilling = 21-1:1 V to 3H:IV slope; area 5,000 ftZ multiplied by <br /> the 500 ft highwall height, at 27 CF/CY=45,370 CY at $1.50/CY= $68,056. <br /> • Topsoiling of an additional 5 acres of area associated to the active mining face in Area 2. <br /> 5 acres at 12 inches deep at $1.50/CY= $12,100. <br /> • Irrigated pastureland revegetation of the additional 5 acre disturbed area. 5 acres at <br /> $850/acre = $4250. <br /> Table L-1 Phase 2 Reclamation Task and Cost Estimate <br /> Activity Description Time(Months) Cost($) <br /> Active highwall backfilling 2 68056 <br /> Topsoilings of all disturbed areas 1 12100 <br /> Revegetation of disturbed areas. Includes seeding and mulching. 2 4250 <br /> Subtotal 5 $84,406 <br /> DRMS Costs(28%x direct costs) $23,634 <br /> Phase 2 Bond Amount $108,040 <br /> Base Products Gravel Pit#1 <br /> February 2018 L-1 <br />