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As mining progresses, topsoil and overburden will be stripped to expose the aggregate product <br /> below. All soil and overburden material will be used on-site for reclamation; so long-term <br /> stockpiling of these materials is not anticipated. Overburden stockpiles will be located within the <br /> proposed mining area. The stockpiles will be placed parallel to the floodplain to mitigate impacts <br /> to the floodplain. <br /> Mining of the aggregate will progress down to the underlying bedrock. Since reclamation will <br /> occur concurrently with mining, it is not anticipated that overburden material will be stockpiled <br /> long-term prior to use in production of road base. During mining the mining face for Phases 2, 4 <br /> and 5 will have a 3HAV slope to bedrock or the bottom of the future reclaimed reservoir. <br /> Phases 1 and 3 will be mined at a 2HAV slope to bedrock, and then backfilled with fined from <br /> the processing of the gravel. The processed aggregate material will be temporarily stockpiled <br /> near the portable processing plant. <br /> Recommendations for monitoring of slope stability, including, conducting a visual inspection of <br /> the excavated slopes on a weekly basis for the duration of mining, conducting a visual <br /> inspection after a major precipitation event that has saturated the ground using the same <br /> procedures, contacting qualified personnel to evaluate and recommend remediation work to <br /> stabilize the area in the event a visual inspection detects signs of potential slope failure, and if <br /> no visible signs of slope failure are detected during mining, reducing visual inspections to once <br /> every six months after mining completion, or after every major precipitation event. <br /> All local, State, and Federal rules and regulations will be followed for the storage and handling <br /> of any fuel for the facilities. <br /> Topsoil Handling Plan <br /> As stated previously the topsoil will be stripped to expose the aggregate product underlying the <br /> topsoil. The topsoil will be stripped using scrapers and stockpiled in the topsoil stockpile as <br /> depicted in Exhibit C. The volume of topsoil for all the mining phases is approximately 306,000 <br /> cubic yards. The depth of the topsoil is approximately twelve inches over the majority of the <br /> mining area. The topsoil will be stripped and stockpiled during each phase of mining where <br /> topsoil will only be removed for Phase 1, Phase 2, Phase 3, Phase 4, and Phase 5 as they are <br /> going to be mined. The height of the topsoil stockpile will be approximately 15 feet. <br /> Mine Phasing <br /> J-2 Contracting anticipates mining and reclaiming the DPG Mining site in 5 phases, progressing <br /> through the phases as shown on the Mining Plan Map. The overall time required to complete <br /> the mining and reclamation is estimated to be 23 years 6 months. Maximum production is <br /> expected to be 2,000,000 tons per year. However, it is possible that due to demand fluctuations, <br /> mining could progress slower than anticipated and additional time may be required for mining <br /> and reclamation of the site. <br /> The operator is proposing to mine Phase 1 first. Phase 1 is 10.44 acres. There will be 84.98 <br /> acres disturbed including area disturbed by slurry wall construction, and to provide locations for <br /> a scale house and site entrance roadway, haul roads, stockpiles, processing areas, a <br /> dewatering pipe, a freshwater pond, recharge ponds, an overflow pond, and an overflow pipe <br /> from the overflow pond that are outside of Phase 1. During the mining of Phase 1 a slurry wall <br /> will be installed around the perimeter of Phases 2 and 5. The estimated time for mining Phase 1 <br /> is approximately 1 year. <br /> J&T Consulting, J-2 Contracting Company <br /> K DPG Mining Site <br /> DRMS 112 Permit Application—Technical Revision No. 1 <br />