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BENT COUNTY COMMISSIONERS <br /> 112 PERMIT APPLICATION <br /> EXHIBIT D (Mining Plan) <br /> Bent Co State Pit <br /> Mining will commence on the western edge of the affected area then proceed to the northeast as <br /> shown in the Exhibit C- Mining Plan map. Mining will be performed using front end loaders.The deposit <br /> is approximately 3 feet thick located between 1 and 4 feet below the surface of the mined area. No <br /> explosives will be used in the mining operation. <br /> Approximately 3 to 10 inches of topsoil will be removed and collected along the northern boundary of <br /> the affected area for use during reclamation as shown on Exhibit C2. Additional overburden ranging <br /> from a few inches to up to 3 feet will be removed, collected, and stored along the northern boundary of <br /> the affected area as shown on Exhibit C2 for use during reclamation as needed.The topsoil and <br /> overburden materials will be isolated and stabilized with a faster growing subset of the reclamation seed <br /> mix(e.g. sideoats gramma and sand dropseed) for use during reclamation. Mining will be performed as <br /> needed over several years. Reclamation activities will be performed as mining progresses. <br /> Approximately 3 acres will be used for staging and stockpiling of mined material. Mined area will be <br /> reclaimed when 3 acres of mined area is available for reclamation. Approximately 16 acres of the <br /> affected land will be mined over time with approximately 5 acres being actively mined, reclaimed, or <br /> used for stockpiles. <br /> No secondary commodities will be mined from the affected area. <br /> The front wall of the mined areas will be sloped by front end loader to a 45-degree angle. Mined areas <br /> will be sloped to a slight grade sufficient to reduce rainwater collection. Approximately 3 acres will be <br /> mined per year. Screening and crushing of the mined material may occur annually or biennially.The <br /> screened materials will be stockpiled in the mined area of the affected pit area. Pit operation shall be <br /> intermittent with approximately 2 months of mining and screening per year or every other year. <br /> Stockpiled material will be used as needed, but total activity will be less than 180 days per year. <br />