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i <br />A.J. l~~sldron February 17, 1995 <br />Rc: 1993 and 1994 Annual Ilydrologic Reports <br />- increased infiltration of runoff through subsidence fractures, <br />direct stream recharge to the mine in zones of stream <br />undermining, and loss of sprint flow. Infiltration of runoff <br />could occur on the surface or along fractures beneath col~uvial <br />or alluvial deposits. Despite the presence of subsidence <br />features at several of the mine sites, this impact has not been <br />identified by any of the monitoring programs." <br />Please call if there are any questions. <br />Sincerely, <br />Thom/a~µ/s C. Anderson, P.E. <br />Environmental Coordinator <br />cc: J.E. Stover w/o enclosures <br />12 <br />