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cotter <br />Via Email and U.S. Mail <br />May 13, 2011 <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division / WQCD -B2 -CAS <br />Compliance Assurance Section <br />Attention: Michael Harris <br />4300 Cherry Creek Drive South <br />Denver, CO 80246 -1530 <br />Subject: <br />References: <br />Dear Mr. Harris: <br />April 2011 Surface Water Monitoring Data for Sampling Stations SW -AWD and <br />SW -BPL on Ralston Creek at the Schwartzwalder Mine <br />Paragraph 26, WQCD Notice of Violation /Cease and Desist Order, Number: <br />IO- 100601 -1, June 1, 2010 <br />Per Paragraph 26 of the above referenced Order, please find enclosed data reports from Energy <br />Laboratories as received by Cotter Corporation (N.S.L.) for surface water sampling conducted <br />in April 2011 at monitoring stations SW -AWD and SW -BPL at the Schwartzwalder Mine. <br />If you have any questions, please contact me at 719- 275 -7413 (ext. 202). <br />Sincerely, <br />John S. Hamrick <br />Vice President, Mill Operations <br />Enclosures <br />cc: Daniel J. Arnold, Esq. (Denver Water) <br />David Bird (DRMS) <br />Cotter Corporation <br />Canon City Mill, P.O. Box 1750, Canon City, CO 81215 -1750 USA <br />!�- 1 -3 <br />Telephone (719) 275 -7413 <br />Fax (719) 275 -1689 <br />