2008-01-28_REVISION - M1997054 (27)

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Aspect F assumes tFiat the access road around the perimeter of the Sand and Gravel mining limit will remain. The remainder of the costs for this aspect is assumed to be scarifying the compacted ground on the remaining access roads, replacing topsoil to 6-inches, seeding and mulching, and reseeding. The office and entrance road will remain on site after reclamation. Aspect G assumes tl~e conveyer belt, processing plant, and ancillary equipment will be removed by the operator. In the unlikely event that the operator abandons this equipment, it is assumed that the cost of removal will be offset by the sale of the conveyer belt, processing plant, and ancillary equipment. The only cost calculated for this aspect is for the removal of the two concrete support structures elevating the conveyor belt over an interior haul road, scarifying compacted ground in the vicinity of the processing plant, seeding and mulching, and reseeding. Aspect H includes the cost of backfilling the trench with clay. It is assumed that the dewatering trench will be used to key 1the clay liner into competent bedrock for the reservoir. In the unlikely event that the pump and ancillary equipment is not removed by the mine operator, it is assumed that the sale of this equipment will offset the cost of removal. Aspect I includes the cost of backfilling stormwater ponds, placing topsoil to 6-inches, seeding and mulching, and reseeding the area. The area of the stormwater ponds was calculated using information provided in the drainage report. Since an end user for the reservoir has not been determined, Aspect 1 assumes that a portable pump will suffice as inlet and outlet works. Once an end user is identified and reservoir operations are defined, a design for the inlet and outlet works is recommended. As a result, portable pumps and ancillary equipment removal costs are assumed to be offset by the sale of this equipment. Aspect K includes tlhe cost of reclamation of the approximately 1100-foot berm located southwest of the Granite Quarry mining limit. This aspect also includes replacing topsoil to 6 inches, seeding and mulching and reseeding the area disturbed by the berm. Granite Quarrv Reclamation Phase 1 This phase of the Granite Quarry operation is characterized by active mining in Area 2 and concurrent reclamation in Area 1 as described in the mining plan. For the purpose of the bond calculation, it is assumed that the kiackfill of the active reclamation area is 50% complete down to approximately 5800- feet. Aspect A includes the cost of backfilling 50% of approximately 2570 linear feet of the top 5 benches. This aspect also includes replacing topsoil to 6-inches, seeding and mulching, and reseeding the disturbed area.