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STATE OF COLORADO <br />VISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />March 9, 2011 <br />COLORADO <br />D IV IS I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />John W. Hickenlooper <br />Governor <br />Jim Beck Mike King <br />Executive Director <br />4,rM Beck & Associates <br />Loretta E. Pineda <br />6130 W. Vassar Way Director <br />Lakewood, CO 80227 <br />RE: Gold Hill Mill; DRMS File No. M-1994-117; Follow-up Regarding Tailings Deposition <br />Dear Mr. Beck, <br />In April of 2009 the Division of Reclamation, Mining and Safety (Division) was informed that tailings <br />from the Gold Hill Mill were improperly placed outside of the designated tailings disposal area. The <br />tailings were placed in two historic prospect pits, the Cy Eaton shaft and the White Cloud shaft. In <br />addition, tailings were placed into the Cash 3rd Level Adit of the Cash and Who Do Mines (M-1983-141). <br />The Division collected tailings samples from the Cy Eaton shaft and from the tailings pond. The samples <br />were analyzed using the synthetic precipitation leaching procedure (SPLP) at the Environmental <br />Protection Agency (EPA) laboratory located in Golden, Colorado. <br />The Division received the SPLP analytical results from the EPA in September of 2009. The analytical <br />results showed antimony and thallium were elevated above numeric standards for Domestic Water Supply <br />as determined by the Colorado Department of Public Health and Environment. Based on the above <br />referenced analytical results, the Division has determined additional sampling of tailings material will be <br />required before a decision is made regarding final reclamation of the tailings disposal locations. <br />The Operator shall collect one tailing sample from the Cy Eaton Shaft and three samples from the tailings <br />pond. The samples shall be analyzed using the acid-base accounting (ABA) procedure and the results <br />shall be reported to the Division on or before April 15, 2011. <br />If you have any questions, please call me at (303) 866-3567 x8116. <br />Sincerely, <br />Y Michael A. Cunni gham <br />Environmental Protection Specialist <br />CC: / ny Waldron, DRMS <br />?David Bird, DRMS <br />Stephanie Carter, BLM <br /> <br /> <br />Office of I Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines