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`? goo <br />a <br />O`?'S??rga?? <br />July 28, 2009 <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 />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 CO-0036684: SECOND QUARTER 2009 DMR SUBMITTAL <br />Dear Ms. Watson: <br />Outfall 001A flowed each week April 1, 2009 through June 30, 2009. No exceedances were noted. <br />Due to a miscommunication between TCC personnel, no WET test sample was collected during the second quarter for 001W. <br />I apologize for this mistake. Note that a WET test was conducted in March 2009, which indicated that the site's effluent was <br />not acutely toxic to fathead minnow or Ceriodaphnia dubia survival. A WET test has been collected in July 2009. Results are <br />pending. <br />Please contact me directly at (970) 870-2750 for any further questions or additional information <br />X3- <br />4 <br />Brian A. Watterson, R.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company, <br />Enclosures <br />cc: DRMS CWPS Permit No. CO-0036684 file