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• • <br />-' EXHIBIT D (Cont'd) <br />As operations begin on each stage, the soils and overburden are <br />removed, segregated and stored for future use in seedbed pre- <br />paration and in backfilling and grading. <br />Overburden varies from about two and one-half feet to <br /> five and one-half feet; however, a large part of the area has <br /> an overburden of three to three and one-half feet. Currently <br />' most of the overburden is being used to build a separation of <br /> the pit area at the southern end of the property which will <br /> create a small lake (see map Exhibit D-1). In the future, <br />' soils and overburden will be stored on the fringe areas around <br /> that land to be excavated and, if necessary, in the previously- <br />' excavated bottoms. <br /> Soils vary in thickness from zero to one foot in a highly <br />' irregular pattern across the affected land. The segregated <br /> soils are carefully stockpiled and, if necessary, a hold cover <br />' <br /> of western wheatgrass is used to minimize wind and water <br />erosion as well as deterioration of the soil. <br />Pit run material is then extracted with a front-end loader <br />' and moved to the gravel plant. Various methods of moving the <br />' materials will be used during the life of the operation. <br />Equipment may include, but is not limited to, a front-end <br />' loader, dump truck or trucks, and/or a conveyer system. Other <br />equipment used in the operation may include, but is not limited <br />' to, a grader, dozer, water truck and water pump. Equipment <br />in the gravel processing plant may include, but is not limited <br />to, a hopper, jaw crusher, water screen, cone crusher and con- <br />veyor. <br />~~ 6 <br />