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cotter' <br />Via Email and U.S. Mail <br />July 29, 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: June 2011 Surface Water Monitoring Data for Sampling Stations SW -AWD and <br />SW -BPL on Ralston Creek at the Schwartzwalder Mine <br />References: Paragraph 26, WQCD Notice of Violation/Cease and Desist Order, Number: <br />I0- 100601 -1, June 1, 2010 <br />Dear Mr. Harris: <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 in <br />June 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 />Enclosures <br />Vice President, Mill Operations <br />cc: Daniel J. Arnold, Esq. (Denver Water) <br />David Bird (DRMS) <br />Cotter Corporation <br />7800 E. Dorado Place, Suite 210, Greenwood Village, CO 80111 <br />z <br />Telephone (720) 554 -6200 <br />Fax (720) 554 -6201 <br />,r1- 777 -aeo <br />