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<br />RECEIVED <br />AUG Z 0 2007 <br />Division of Reclamation, <br />Mining and Safety <br />August 15, 2007 <br />Ms. Tanis 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 M 27 <br />Oak Creek, Colorado 80467 <br />(970) 879800 <br />RE: PERMIT CO-0036684: REVISION TO 2ND QUARTER 2007 DMR SUBMITTAL <br />Dear Ms Watson: <br />-~ SC-, <br />It has come to my attention that a printout of the wrong DMR form for the subject permit was inadvertently sent out with <br />Twentymile Coal's for the second quarter of 2007 (April 1, 2007 through June 30, 2007). I apologize for this oversight. Please <br />dispose of the erroneous forms and replace them with the ones I've enclosed. No permit limitation exceedences were noted <br />during the quarter. Note that the site did not discharge during June. <br />A fluarterly Whole Effluent Toxicity (WET) test was conducted for Outtall 001W in April 2007. This stte passed for both P. <br />Promelas, and C. Dubia. Copies of the W ET Test Report Forms are included with this submittal. <br />Please contac me directly at (970) 870-2750 far any further questions or additional information. <br />Brian A. Watterson, R.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company, <br />Enclosures <br />cc: DMG <br />~S'Permit No. CO.0036684 file <br />