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July 25, 2017 <br />Mr. Eric Mink <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division - Permits and Enforcement <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />Phone: (303) 692-3603 <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970) 879-3800 <br />RE: PERMIT COG -850051; SECOND QUARTER 2017 DMR SUBMITTAL <br />Dear Mr. Mink: <br />This letter is to serve notice that Outfall 001A (6MN pond) did not discharge during the second <br />quarter of 2017. The DMR is attached. <br />Sincerely, <br />0"0(a ll�aWc&� <br />Miranda Kawcak (Blomquist) <br />Engineering Technician, Environmental <br />Twentymile Coal, LLC <br />enclosures <br />cc: DBMS; CDPS Permit <br />