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EXHIBIT D (Cont`d) <br /> <br /> <br />observed thicknesses will continue fairly well intact across the <br />land to be excavated. <br />The mining process will be carried on primarily by front- <br />end loaders. The loaders will unload to conveyors which will <br />carry the materials to the processing system. Mining equipment <br />may include, but is not limited to, front-end loaders, bulldozer, <br />dragline, cvater truck and dump trucks. <br />Each stage will be mined at two or three levels. The thick- <br />ness of each level may vary from 20 to 35 feet. Map D-1 shows <br />mining of the first six stages completed and mining operations on <br />the first level at Stage VII just being completed. In this Exhibit <br />Stages VII through P are shown as not being mined. For contours <br />after mining is completed, see map Exhibit F. <br />Exterior permanent slopes (perimeter) will be mined and <br />maintained at 3 to 1 so that final grading for reclamation will <br />be reduced to only seedbed preparation and revegetation. Likewise, <br />interior floors will be leveled to base grade as mining proceeds <br />so that only seedbed preparation and revegetation will be necessary <br />in the reclamation phases. Interior slopes are all temporary and <br />will be left at the angle of repose. One exception to the <br />interior slope being the angle of repose will be the interior <br />sides of the screening berm which will be excavated at 3 to 1. <br />Robertson ditch runs along the north side of Stage I and <br />Stage XVII and along the east side of Stage XVI. The ditc:i; <br />elevation is approximately 5,9G8 feet at the diversion point <br />- 9 - <br />