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EXHIBIT D (Cont'd) <br />over the life of the mine as a source of pit run nonspec:ification <br />material for local user demand. A reclamation phase will follow <br />' immediately upon the completion of each mining stage (se<~ map Ex- <br />hibit D-1). Except for Stages Y, Y and Z the pit is operated }year <br />around by Valco as a specification aggregate supply for :_ts off-site <br />concrete batch plant. <br />As operations begin on each mining stage, the soils send over- <br />' burden are removed, segregated and stored for future use in seedbed <br />preparaiion and in backfilling and grading. Overburden i.n Stage 1 <br />' through Stage V Part 1 is virtually nonexistent. However, in Stages <br />V Part 2, V1 and Z the overburden varies from about five feet to ten 0(~ <br />feet in depth. Most of this overburden will be used to tiring bank <br />slopes to the 3 to 1 requirement. Overburden will also tie used to <br />create peninsulas and possibly one off-shore island in ttie lake. <br />' Soils vary in thickness across the affected land from zero to <br />one foot in a highly irregular pattern where overburden Erxists. The <br />' segregated soils are carefully stockpiled and, if necess~.ry, a hold <br />' cover of western wheatgrass is used to minimize wind and water erosion <br />as well as deterioration of the soil. <br />' Pit run material is extracted with a drag line. The wet material <br />is piled next to the pit and allowed to drain before being moved to <br />the gravel plant. Various methods of moving the material. will be <br />' used during the life of the operation. Equipment may include, but is <br />not limited to, a drag line, front-end loader, dump trucl~: or trucks, <br />' and/or a conveyor system. Other equipment may include, taut is not <br />limited to, a grader, dozer, water truck, sauwerman.and wafer pump. <br />1 <br />6 <br />