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6.4.4 Exhibit D -Mining Plan <br />Table 6.4.4.1 -Mining Timetable in Sequence <br />Mining Cell Area Approximate Time Until Complete <br /> [acres] <br />Cell 1 40 2 years <br />Cell 2 64 4 years <br />Cell 3 13 1 year <br />Cell 5 1.5 0.25 years <br />Cell 6 9 0.75 years <br />Cell 4 12 1 year <br />Total 139.5 -9 years <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 M-2004-AM-1 <br />Regular 112 application <br />