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• entry seals and down-slope barriers designed to ensure stability under <br />anticipated hydraulic heads developed while promoting mine inundation <br />after mine closure for the proposed permit area and adjacent area. <br />efl~r~~~e_ <br />SIIRFACB iiATSE QDALITY PBOTBCTION <br />Surface Water Hydrology <br />The proposed permit area is comprised of an eziating surface <br />• <br />coal mining operation and an inactive underground operation. Mining <br />and reclamation operations at Bnergy Mine No. 3 have been conducted <br />under the authority of previously approved Permit No. 76-16. <br />The surface eater hydrology of the proposed permit area is <br />characteristic of a high altitude semi-arid enviro~ent. Most of <br />the proposed permit area is drained by ephemeral streams which flow <br />only in response to anormelt or rainstorms. The proposed permit <br />area contains tro intermittent streams, Foidel Creek and Middle <br />Creek, which drain into perenn}al Trout Creek. Several man-made <br />ponds eziat within the proposed permit area and are used primarily <br />for stock rater supply and sediment control as required by the terms <br />of the eziating permit for Mine No. 3. Surface water features of <br />the general area and the proposed permit area are shown on Map 1, <br />Tventymile Park Hydrology and Map 4, Mine No. 3 Hydrology. Detailed <br />• information on the surface water hydrology of the proposed permit <br />area is set forth and referenced under Rule 2.04.7. <br />2.05 - 136 <br />