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MINING PLAN EXHIBIT D <br />can be created without backfilling. This method of creating <br />slopes leaves a stable slope requiring no backfilling or other <br />work once complete. This same slope management plan will prevent <br />any offsite slides or other disruptions. <br />The amount of area to be stripped will be limited to the <br />amount of area needed for mining during that mining cycle. By <br />limiting the amount of area stripped at any one time we will <br />lessen the visual effects of the mining operation on surrounding <br />areas as much as possible. Please refer to the MININGTIMETABLE on <br />page 12 for the estimated acreage of each area associated with <br />the mining part of this operation. <br />This pit will be operated year-around by Yuma County on a <br />lease from the Moser family, weather permitting. There may be <br />periods of up to six months when no activity takes place on the <br />mine site. Most of the time the stockpiles of material main- <br />tained on the site will be removed as the need arises so there <br />will be some activities on the mine year around. <br />Mining equipment may include but is not limited to, front- <br />end loaders, scrapers, bulldozers, dump trucks and a water truck. <br />Processing equipment may include but is not limited to conveyors, <br />crushers and screen plants. <br />As much as possible, the surface drainage will be maintained <br />in the same direction as it now exists. Berms or isolation <br />ditches will be maintained around the mine area and long the top <br />of the slopes to keep offsite runoff from entering the mined <br />area. The proposed sloping plan for the mine should eliminate <br />any concerns of erosion occurring on the site. <br />We do not expect any unusual dust control problems on the <br />site. Most of the water used for dust control will be used on <br />haul roads. on a typical operation of this type we use 3 to 5 <br />ac-ft of water per year. Please refer to EXHIBITG-WATER for the <br />discussion of how water will be used at the site. <br />There are no ditches crossing the site and no surface or <br />subsurface water will be impacted by the mining operation. All <br />interior pit slopes will be maintained with a pit-ward attitude <br />so that historic drainage patterns can be maintained. No U.S. <br />Army Corps of Engineers, 404 permit is necessary, as there are nc <br />water bodies on the site. <br />MINING TIMETABLE <br />our need for road construction material is highly variable <br />which precludes an accurate forecast of our demands for materials <br />11