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Probable Hydrologic Consequences New Elk Mine 29 <br />conceptual model for the New Elk Mine. The maximum extent of subsidence fracturing with increased <br />vertical transmissivity is projected to extend 195 feet above the top of the highest mined coal (Plate 2). A <br />minimum thickness of 450 feet of overburden lies between the top of the Apache seam and the base of area <br />drainages. The zone of increased vertical transmissivity is not expected to impact surface water. A zone of <br />continuous deformation will be present from about 195 feet above the coal to 50 feet below ground surface. <br />No hydrologic impacts or only temporary minor changes in water level are expected to occur in the <br />continuous zone. No flow or water quality impacts are expected to occur to surface water including springs <br />and seeps from mining in the Allen and Apache seams. <br />4164A.110421 Whetstone Associates <br />rru cA Qfn'� n.,,.o 1 cn n ions 1 <br />