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Exhibit D <br /> Mining Plan <br /> Mining methods will be consistent throughout the life of this operation. The pit is generally <br /> underladden by gravelly alluvial materials. The applicant will mine the deposits of sand and gravel <br /> through excavation and earthmoving equipment and may provide a crushing unit on the premises and <br /> screening. Transportation on and off the premises of the materials would be by dump truck and belly <br /> dump. <br /> The earthmoving equipment used on the site will consist of front-end loaders, dozers, scrapers, blades <br /> or any combination thereof. Onsite there is also a scale house, scale and tank used for water storage. <br /> Mining will have slopes steeper than 3H:1V on the highwall with the remaining walls sloping at 3H:1V. <br /> There will be no water diverted at the site. Water may be used in a washing operation at the site. <br /> Water will be purchased for use in the washing operation through a lease agreement with the Arkansas <br /> Groundwater Users Association or through the Pueblo Board of Water. <br /> The size of the permit area is requested to increase from 92 acres to 199.4 acres. The applicant requests <br /> that all 199.4 acres be available for mining throughout the life of the mine. The operator requests that <br /> the maximum area of disturbance be the full 199.4 acres. The operator will leave a 50' buffer perimeter <br /> around the power poles onsite, as well as maintaining a 200' buffer from the Arkansas River. <br /> It is anticipated that the useful life of the pit to be at least thirty years. We will continue mining from <br /> the current disturbed area and work north and easterly to the permit boundaries. Since this <br /> amendment requests that all 199.4 acres be mineable during the duration of the permit,there will be no <br /> phased mining operation. <br /> Though the exact nature, depth and thickness of the deposits to be mined are unknown, it is anticipated <br /> that the aggregate deposits vary from 12 inches to 35 feet in depth and topsoil is approximately 5 inches <br /> thick. <br /> The primary commodities are sand and gravel, and the use will be for sale to commercial users for road <br /> maintenance, road construction, chip material, concrete production, or all other uses for which sand <br /> and gravel can be used. <br />