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West Elk Mine <br />• Extensive sandstone channels have been mapped above the E Seam in the South of Divide <br />mining area. Because 800 or more feet generally covers the sandstone channels, it is unlikely <br />that they have received appreciable recharge by vertical infiltration from overlying rocks or <br />are in active hydraulic communication with either surface water or near surface groundwater <br />(Mayo and Associates, 1999). <br /> <br />`I <br />2.05-171 RevisedJ'me 2005 PRIG; Rev. March 2006: Rev. May 2006 PR10 <br />