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The operator is proposing to mine Phase 2 second. Prior to mining Phase 2 a slurry wall will be <br /> installed around the perimeter of Phases 2 and 5. Phase 2 is 54.21 acres. There will be 91.86 <br /> acres disturbed including the Phase 1 area, processing and stockpile areas in the Phase 5 area, <br /> and to provide locations for a scale house and site entrance roadway, haul roads, stockpiles, <br /> processing areas, a dewatering pipe, a freshwater pond, recharge ponds, an overflow pond, and <br /> an overflow pipe from the overflow pond that are outside of Phase 2. The estimated time for <br /> mining Phase 2 is approximately 6 years and 6 months. <br /> The operator plans to mine Phase 3 third. Phase 3 is 10.59 acres. There will be 95.23 acres <br /> disturbed including the Phase 1 area, processing and stockpile areas in the Phase 5 area, and <br /> to provide locations for a scale house and site entrance roadway, haul roads, stockpiles, <br /> processing areas, a dewatering pipe, a freshwater pond, recharge ponds, an overflow pond, and <br /> an overflow pipe from the overflow pond that are outside of Phase 3. The Phase 2 area is <br /> expected to be reclaimed and likely released. The estimated time for mining Phase 3 is <br /> approximately 1 year. <br /> The operator plans to mine Phase 4 fourth. Prior to mining Phase 4 a slurry wall will be installed <br /> around the perimeter of the phase. Phase 4 is 93.03 acres and there will be 131.85 acres <br /> disturbed including the Phase 3 area, processing and stockpile areas in the Phase 5 area, and <br /> to provide locations for a scale house and site entrance roadway, and haul roads, that are <br /> outside of Phase 4. The Phase 1 area is expected to be reclaimed and likely released. The <br /> dewatering pipe, freshwater pond, recharge ponds, overflow pond, and an overflow pipe from <br /> the overflow pond will be located in the bottom of the Phase 4 mining area. The estimated time <br /> for mining Phase 4 is approximately 12 years and 6 months. <br /> The operator plans to mine Phase 5 fifth. Phase 5 is 19.39 acres. There will be 37.44 acres <br /> disturbed including the Phase 3 area, and to provide locations for a scale house and site <br /> entrance roadway, and haul roads, that are outside of Phase 5. The Phase 4 area is expected <br /> to be reclaimed and likely released. The estimated time for mining Phase 5 is approximately 2 <br /> years and 6 months. <br /> The mining will progress in each phase beginning at the outer edge of the phase where material <br /> will be moved toward the interior of the phase such that the mining slope can be established. <br /> The mining slope will be established for the entire perimeter of the phase in 3 to 6 feet intervals. <br /> Dewaterinq <br /> Dewatering trenches will be placed along the perimeter of each mining area in Phases 1 <br /> through 5. The dewatering trench around the perimeter of the phase being mined will be placed <br /> at the toe of the mining slope. As the phase is mined deeper the dewatering trench will be <br /> lowered and moved laterally along the mining slope toward the center of that phase. Slurry walls <br /> are anticipated to be installed around the perimeter of Phases 2, 4, and 5 prior to starting mining <br /> in those phases and it is expected minimal dewatering will be required after the slurry walls are <br /> installed due to the slurry walls cutting off groundwater infiltration into the pit. J-2 Contracting <br /> Company will have an approved substitute water supply plan and well permit prior to exposing <br /> groundwater. The substitute supply plan will be updated annually to account for water that is <br /> consumed due to exposing groundwater by the mining operation. <br /> Explosives <br /> Explosives will not be used during mining. <br /> J&7 Consulting, J-2 Contracting Company <br /> S DPG Mining Site <br /> DRMS 112 Permit Application—Technical Revision No. 1 <br />