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~= <br />:., <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depalbnent of Natural Resources <br />1313 Sherman St., Room zt s C O L O RA D O <br />Denver, Colorado 80203 D I V l s 1 0 N O F <br />Phone: (303) 8663567 M 1 N S RA L S <br />FAX: (303) 83b8106 INTERNAL MEMO G E O L O G Y <br /> R[CLAMATION•NINING <br /> SAf ETT•SCIENCE <br /> <br /> Bill Owens <br />TO: Dan Mathews 6 Feb 2004 cwemor <br /> crag r. wakher <br />FROM: Jim Bum r3ecutive Director <br /> Ronald W. CNWny <br /> <br />SUBJ: McClane and Munger Annual Hydrology Report for WY 2003 Division Dinxtor <br />NaNnl Resounx Tnlrttt <br />Dan, The review is complete for the McClane/Monger AHR for WY2002. <br />Overall, the report indicates that there has been very little in the way of impact from the <br />mining activity on the groundwater or surface water resources around the mines. <br />The minewater had lower total dissolved salt (TDS) content than East Salt Creek during <br />the 151 quarter sampling. In the 2"d quarter, the TDS value was elevated slightly <br />downstream of the McClane Canyon Mine but was still far below the baseline value for <br />East Salt Creek. <br />Groundwater analyses show that pH in the East Salt Creek alluvitun upgradient of the <br />mines was lower than that below, but the electrical conductivity (indicative of TDS) was <br />lower downstream. <br />There was no indication of any impact from the mines. <br />cc: Sandy Brown <br />OfFlce of ~~ of Coorado <br />Mined ltnd Reclamation Alive and Inactive Mines Geological Survey <br />