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heaves and ground water augmented mass movement on an 11 <br />and 12 percent din. <br />In C-16284, therefore, it was felt that in the permitted <br />box cut location coal removal would be physically impos- <br />sible to accomplish due to geologic conditions worse than <br />in the slide area adjacent to the north. The box cut as <br />located and excavated is approximately 500 feet up the <br />slope from the permitted location. This movement repre- <br />sented the most acceptable operational posture, taking <br />account of the safety risk and the necessity to mine. <br />Coal removal in the box cut as relocated was accomplished <br />with difficulty because of the dip, and because of water, <br />• but no machines or men were hurt by rock falls or <br /> slides. (See Map 1, Mines 1 and 2.) <br />Because the box cut was moved 500 feet up the slope from <br />its permitted location, the filling of the adjacent <br />drainage by spoil from the box cut in its permitted loca- <br />lion was obviated. Instead, the spoil toe as presently <br />located infringes on only a very small portion of a sec- <br />ondary drainage, and not at all on the main ephemeral <br />drainage. In other words, the spoil is on the hill side <br />as opposed to being in the drainage. <br /> <br />816-99(b) <br />