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6.4.4 Exhibit D -Mining Plan <br />Water Diversions and Impoundments <br />Dewatering trenches will be dug to facilitate dry mining as shown in Exhibit C - <br />Mining Plan. Wafer will be allowed to gravity feed to the west where it will be <br />pumped from a dug well to Boulder Creek <br />During "wet plant" operations, water will be pumped through a wash plant and <br />back to water impoundments shown in Exhibit C -Mining Plan. <br />Size of Area to Be Worked at One Time <br />The largest area to be worked atone time will be the south 2/3 rds of Cell 1, <br />which will open up approximately 30 acres. The largest stockpile that will occur <br />atone time will be no more that approximately 75,000 yd3 <br />Table 6.4.4.1 -Mining Timetable in Sequence <br />Mining Phase Area Approximate Time Until Complete <br />[acres] <br />North 1/3 Cell 1 15 1 year <br />Cell 2 and Cell 3 26 1 year <br />South 2/3 of Cell 1 30 2 year <br />Cell 4 13 1 year <br />Nature of Deposit <br />The overburden occurs at an average thickness of 3 ft east of Boulder Creek and <br />an average of 5 ft west of Boulder Creek. The sand and Gravel deposit occurs at <br />an average thickness of 10 ft. The overburden is composed of an average 0.5 ft <br />of loam followed by silty and clayey sand to sandy and silty clay. <br />Underlying Stratum <br />The sand and gravel is underlain by shale. <br />Commodities <br />The primary commodities are sand and gravel. There are no incidental <br />commodities. <br />Explosives <br />No explosives will be used in the mining process. <br />Turnpike Mining Resource <br />Regular 112 application <br />