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• <br /> <br /> <br />2.05.6 (3) Protection of the Hydrologic Balance <br />Contamination of Surface Waters Downstream <br />Given the limited size of the loadout area, the lack of any underground mine water discharge, <br />and the previously discussed drainage and sediment control measures should effettively prevent <br />significan[ adverse downstream water quality impacts. <br />Possible Contamination of Ground Water due to Leaching_of Toxic Materials <br />Information on borings near the lease area show that the surface is comprised of a silty, clay <br />material underlain by weathered shale and hard shale, which is not conducive to water <br />percolation. Visual observation of the lease areas shown that the surface material has been <br />highly compacted form heavy equipment and railroad use, and that rain water usually builds up <br />in shallow ponds and evaporates. <br />The impact is also minimized by the fatt that the combined lease area is only 3.32 acres and that <br />it has traditionally been used as a rail car loading site. <br />n:~esee'rxozres <br />IIRL97 ILm 621R Revised -November 1993 <br />