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Mitigation of Surface Coal Mining Operation Impacts, and in Section 4.05, <br />~-- Performance Standards - Hydrologic Balance. Given that no significant <br />hydrologic impacts are anticipated, there is no need to provide for <br />alternative water supply. <br />u <br />EFCI currently utilizes the Corley Mine Well as the primary water source for <br />consumptive use at the mine. In the unlikely event that ongoing operations <br />result in depletion of the reservoir source for this well, EFCI would <br />approach the City of Florence and other local water right owners for an <br />alternative water supply. <br />MaDD1nQ of Hydrologic Information <br />Essentially all significant hydrologic features in the mine, loadout and <br />hydrologically adjacent areas, as well as in the general area are shown on <br />the Regional Hydrogeologic Map, (Map 5), the Mine Area Surface and <br />Groundwater Hydrology Map. (Map 12), and the Loadout Area Surface and <br />Groundwater Hydrology Map, (Map 13). These maps show the locations of <br />surface drainages, corresponding drainage basin boundaries, water supply <br />intakes, ditches, wells and pipelines, sedimentation and water storage <br />impoundments, groundwater monitoring wells and surface water monitoring <br />locations, and all other geologic and hydrologic information of significance <br />relative to potentially affected hydrologic resources. <br />Features relating specifically to EFCI's ongoing mining operations including <br />the permanent coal refuse stockpile, all mine roads and facilities, <br />sedimentation ponds and storage reservoirs, the mine water treatment system, <br />and the locations of exploration coreholes are shown on the Mine Area Geology <br />Map, (Map 8), the Mine Plan Map, (Map 17), and the Mine Surface Facilities <br />Map, (Map 18). <br />/L <br />F. <br /> <br />C:1TM18601VOL.1 \HVD.SEC <br />10/041943:05pm WP51/cmc 2.04.7.46 Revised - 9/30/94 <br />