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<br />October 26, 2007 <br />~~~``v `O <br />3 01p4~ <br />o Cj ~m9 and Sad ty n, <br />M <br />Ms. Tania Watson <br />Colorado Depanment of Public Health and Environment <br />Water Quality Control Division - Permils 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-0027154: SEPTEMBER 2007 DMR SUBMITTAL <br />Dear Ms. Watson: <br />During the month of September 2007, Outtalls 003A (Pond B), OO5A (Pond D) and 006A (Pond E) discharged. Outtall 003A <br />only discharged the first, third and fourth weeks of the period. Outta11005A discharged each week of the period. Outtall OO6A <br />discharged only during the first of the periotl, allowing only one sample set to be collected and analyzed. No exceedances <br />were noted. <br />Quarterly Whole Effluent Toxicity (WET) testing for OO5X was conducted at this site the week of September 10th. Results <br />indicate that the effluent was not toxic to fathead minnow or Ceriodaphnia dubia. Copies of laboratory test results are attached. <br />Note that new DMR carbon sheets we recently received in the mail indicated 003X under discharge number instead of 005X. <br />OOSX is the proper designation. <br />In order to reduce the amount of paper work, the following certification will be substituted for the actual DMR forms to cover <br />the outtalls, which did not discharge. These include 002A (Pond T), Pond C (Outtall 004A), 007A (Pond F), and 008A (Pond <br />G). Note that ponds A (Ouffall 001A), and H (Ouffall 009A) have been deactivated following bond release, and have been <br />removed from the amended permit, effective January 1, 2003. Also note that Outfall 020A has not been constructed yet. <br />CERTIFICATION <br />1 certi/y under penalty of law that I have personally examined and am familiar with the information submitted herein; and <br />based on my inquiry of those individuals responsible /ar obtaining the information, 1 believe the submitted information is <br />true, accurate, and complete. I am aware that there are significant penalties lorsubmitting false information, including the <br />possibility o/ /fine and imprisonment. See 18 U.S.C. § 1001 and 33 U.S.C. § 1319. (Penalties under these statutes may <br />include /fines up to $10,000 and/or maximum imprisonment o/between 6 months and 5 years.) <br />K3~'//U~ io 2S' 0 <br />Brian A. Watterso , eologist Date <br />Please contact me directly at (970) 870-2750 with any questions. <br />Very truly yours, <br />~~~~~ <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company <br />enclosures <br />cc: DMG; CWPS Permit No. CO-0027154 file <br />