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<br />As previously mentioned, the pit will be mined vertically right up to the line <br />indicating the pit limits (as shown on Exhibit C-1) to maximize resource recovery. <br />A combination of pit floor shale materials and overburden will be placed against <br />these vertical walls. This material will be placed to establish a stable slope along <br />the shoreline. <br />All disturbed areas associated with the operation will be gently graded toward the <br />mine pit to ensure that all storm water runoff and sediment loads are retained on- <br />site. These flows will be directed to a retention pond area adjacent to the mine <br />sump to permit settling of sediment prior to discharge. Minor areas that must be <br />graded away from the pit will be revegetated as soon as possible upon <br />completion of grading. These areas will drain to shallow ditches, which then will <br />be directed to the pit. <br />Aggregate Processing <br />The pit run sand and gravel will be screened, crushed and washed to remove <br />excess silt size material prior to sale. The wash water containing this silt will be <br />directed to a settling pond to permit settling out of the silt and the clarified water <br />will be recycled to the plant for additional washing. The proposed pond system <br />that will be utilized to facilitate these washing steps is to be located adjacent to <br />the processing area. All water used in the operation will be recycled. The only <br />water subject to periodic discharge will be from mine dewatering and from storm <br />water runoff. <br />16 <br />