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<br />?-o <br />Carter <br />/Y,,? A "?e// SAS ,Dr A <br />Via Email and U.S. Mail <br />;X ay 11, 2011 <br />40 Colorado Department of Public Health and Enviromnent <br />Water Quality Control Division / WQCD-132-CAS <br />Compliance Assurance Section <br />Attention: Michael Harris <br />4300 Cherry Creek Drive South <br />Denver, CO 80246-1530 <br />C, <br />Subject: Monitoring Data for the Schwartzwalder Mine Site and Ralston Creek <br />References: CDPS Permit CO-0001244 <br />Dear Mr. Harris: <br />With respect to the Schwartzwalder Mine site, enclosed please find monthly surface and <br />quarterly groundwater quality monitoring results and daily mine water level measurements for <br />the month of March 2011 and first quarter, 2011. This submittal represents continuation of <br />routine monthly reporting of water monitoring results as previously discussed with you and <br />with the Division of Reclamation, Mining and Safety. <br />If you have any questions, please contact me at 719-275-7413 (ext. 202). <br />Sincerely, <br />S <br />eohn Hamrick <br />Vice President, Mill Operations <br />cc: /David Bird (DRMS) <br />Edgar Ethington (CDPHE) <br />Daniel Arnold, Esq. (Denver Water) <br /> <br />Cotter Corporation <br />Canon City Mill, P.O. Box 1750, Canon City, CO 81215-1750 USA <br />Telephone (719) 275-7413 <br />Fax (719) 275.1569 <br />-,n-,?-.o..:-,-?.?r..,: ; .r_ .a<afs?.. _;7,....r=s•- ,._..-..aa.?,.is:v,.,.?.M.??"?3.:.e:ar?:K.. t;??: