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Peabody <br />Twentymile Coal Company <br />29515 Routt County Road #27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />April 28, 2010 <br />V'?? ?%0 <br />??010 <br />Ms. Tania Watson <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 />RE: PERMIT CO-0042161; FIRST QUARTER 2010 DMR SUBMITTAL <br />Dear Ms. Watson: <br />Please find enclosed the above referenced discharge monitoring reports for the period January 1, <br />2010 through March 31, 2010, for Outfalls 001 A/001 W/MON1 (all site 115), and 002A (sites 300E <br />and 3001). Outfall 001A/001W did not discharge during the period. Attached are blank DMRs for <br />this Outfall with the No Discharge box checked. <br />Due to freezing conditions, Outfall 002A (specifically site 300E) did not flow the first three weeks <br />in January, flowed the last week in January, was frozen again the second week of February, and <br />resumed flowing through the end of the first quarter. No exceedances were noted for 002A. <br />Very truly yours, _ <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group, <br />Twentymile Coal Company <br />Enclosures <br />cc: DBMS CWPS Permit No. CO-0042161 file