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the bottom of the future reclaimed reservoir. The processed aggregate material will be <br /> temporarily stockpiled near the portable processing plant. <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 30 years. Maximum production is expected to be <br /> 750,000 tons per year. However, it is possible that due to demand fluctuations, mining could <br /> progress slower than anticipated and additional time may be required for mining and <br /> reclamation of the site. J-2 Contracting Company will mine down to an elevation of 4523 in <br /> Phase 1 of the mining plan encompassing a total of 24.57 acres of the mining limits and <br /> groundwater will be exposed. A slurry wall will be constructed around Phase 1. <br /> It is expected that a maximum of 2 phases will be disturbed at any given time, and if more are <br /> disturbed J-2 Contracting Company will provide notification to DRMS and financial warranty for <br /> each phase prior to opening or disturbing. <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 a 3H:1V mining slope can be <br /> established on the exterior of the phase and then transition to a 3H:1 V slope. The mining slope <br /> will be established for the entire perimeter of the phase in 3 to 6 feet intervals. In Phases 1 —5 a <br /> dewatering trench around the perimeter will be placed at the toe of the 3H:1 V or 3HAV mining <br /> slope. As the phase is mined deeper the dewatering trench will be lowered and moved laterally <br /> along the 3HAV and then the 3HAV mining slope toward the center of that phase. Once the <br /> interior footprint becomes small enough where the 3H:1V mining slopes from three to four sides <br /> are encroaching upon the portable plant and haul roads another phase will be opened to <br /> continue mining. <br /> Dewaterinq <br /> Dewatering trenches will be placed along the perimeter of each mining area in Phases 1 — 5. <br /> The dewatering trench around the perimeter of the phase being mined will be placed at the toe <br /> of the 3HAV or 2HA V mining slope. As the phase is mined deeper the dewatering trench will be <br /> lowered and moved laterally along the 3HAV mining slope toward the center of that phase. <br /> Once the interior area becomes small enough where the 3HAV mining slopes from three to four <br /> sides are encroaching upon the portable plant and haul roads another phase will be opened to <br /> continue mining. The slurry wall is anticipated to be installed around the perimeter of Phase 1 <br /> and prior to starting mining in Phase 2 and it is expected minimal dewatering will be required in <br /> • J&T Consulting, -2 Contracting Company <br /> g+Inc.. DPG Mining Site <br /> DRMS 112 Permit Application <br />