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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 27, 2012 <br />Dear Ms. Watson: <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group, <br />Twentymile Coal Company <br />1AM 032G‘, <br />,)iv Won of ROGt's,„ Idiuon. <br />Mining and Safety <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 2012 DMR SUBMITTAL <br />Please find enclosed the above referenced discharge monitoring reports for the first quarter of <br />2012, for Outfalls 001A/001W/MON1 (all site 115), and 002A (sites 300E and 3001). No <br />exceedances were noted. Outfall 001A/001W/MON1 did not discharge during the period. 002A <br />(sites 3001 and 300E) did not flow during January due to freezing conditions. There was also no <br />flow in February due to ice blocked headgates and an associated piping connection at one of the <br />upper lagoons. A plumbing company was called in to clear the obstruction the first week in <br />March. The site subsequently flowed each week in March. Two sample sets were collected for <br />that month. <br />If you have any questions, please contact me directly at (970) 870 -2750. <br />Best Regards, <br />Enclosures <br />cc: DRMS CWPS Permit No. CO- 0042161 file <br />