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OF CO< <br />~~' ~0~9 <br />re ~., p DEPARTMENT OF NATURAL RESOURCES <br />* ~7 1 O I ) • David H. Getches, Eeecwive Director <br />'~~~~" MINED LAND RECLAMATION DI\ <br />• ~g 76 x DAVID C. SHELTO N, Director <br />Richartl D. Lamm <br />Governor <br />DATE: May 1, 1986 <br />TO: Peter O'Connor <br />FROM: Steve Renner <br />RE: SPOILS PILE AQUIFER, CHIMNEY ROCK COAL <br />Data submitted in the 1985 Annual Hydrologic Report for 1985 indicates that <br />the water level in the backfilled East Pit is rising. In 1983 Depth-to-Water <br />in spoils Well W-16 was 103 feet. In 1984, Depth-to-Water was 94 feet. In <br />1985 the water level was fairly stable, this is probably due to the <br />configuration of the original pit. It is thought that the water level will <br />continue to slowly rise overtime. <br />Eventually, as the spoils aquifer water level rises, it is expected that <br />springs and/or seeps will develop along the east side of the reclaimed East <br />Pit. Therefore, it is rqy recommendation that mine personnel walk the east <br />side of the East Pit Reclamation area shortly after Stollsteimer Creek high <br />water has occurred. Any springs and seeps issuing from the reclaimed slopes <br />should be plotted on a map. An estimate of discharge should also be made at <br />the time of mapping. It is thought that springs and seeps will not be <br />observed above an elevation of 6,555 feet. <br />I am unable to predict when springs and/or seeps will occur, but it is also <br />important to note the absence of these discharges. <br />If I can be of further assistance, Please contact me. <br />cc: Mike Savage <br />9753E <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />iii iiiiiiiiiiiuiii <br />999 <br />