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Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970) 879-3800 <br />RECEIVED <br />NOV O1 2004 <br />October 26, 2004 <br />Division of Minerals & Geology <br />Ms. Carla Lenkey <br />Colorado Department of Public Health and Environment <br />Water Duality Control Division -Permits and Enforcement <br />4300 Cherry Creek Drive South <br />Denver, CO 80222.1530 <br />Phone: (303) 692-3603 <br />RE: PERMIT CO-0027154: SEPTEMBER 2004/3RD QUARTER 2004 DMR SUBMITTALS <br />Dear Ms. Lenkey: <br />Enclosed, please find the above referenced discharge monitoring reports for the period September 1, 2004 through September <br />30, 2004. During this period only Ponds B (Outfall 003A) and E (Outfall 006A) discharged to Foidel Creek. Outfall 003A <br />discharged during the third and fourth weeks of the period. Outtall OO6A discharged during each week of the period. During <br />the third week of the period a TDS of 64 mg/I was detected at Outfall 006A, with a subsequent TDS concentration of 14 mg/I <br />during the fourth week of the period. While a concentration of 64 mg/1 does not exceed the maximum limit in the permit (70 <br />mg/I), the average of 64 and 14 mg/I (equaling 39 mg/I) does exceed the 30 day average of 35 mg/I by 4. While this does <br />constitute an exceedance, it should be noted that Outtall 006A flowed only two weeks of the period, and that the TDS <br />concentration during the first week of October maintained a low TDS trend with 10 mg/I. The concentration of 64 mg/I may <br />relate to the restart of flow, flushing out standing water after a period of two and a half months of no flow. TCC will look into <br />installing some form of filter system upstream of the Outfall to eliminate a reoccurrence of this situation. <br />Note that fonds T (Outtall 002A), C (Outtall 004A), D (Outtall 005), and G (Outfall OOSA) did not flow during this quarter, <br />therefore no samples were collected from these sites for quarterly conductivity testing. Outfalls 005W and 007W did not flow <br />during the quarter, therefore no samples could be collected for quarterly W ET testing. <br />Outtalls 002A, 003A, 004A, OOSA, 007A, and 008A did not discharge in September; and therefore had no chemical tests <br />during the period. Outtall 020A/020W has not yet been constructed, therefore sampling of this site has not occurred. Note <br />that ponds A (Outfall OOtA/001W), and H (Outtall 009A) have been deactivated following bond release, and have been <br />removed from the newly amended permit, effective January 1, 2003. In order to reduce the amount of paper work, the <br />following certification will be substituted for the actual DMR forms to cover the outtalls, which did not discharge. <br />I certify under penalty o/law that 1 have personally examined and am familiar with [he in/ormation submitted herein; and <br />based on my inquiry of those individuals responsible /or obtaining the in/ormation, 1 believe the submitted in/ormation is <br />true, accurate, and complete. I am aware that there are significant penalties for submitting false in/ormation, including the <br />possibility of 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 $1kk0,000 an2d/~or maximum imprisonment of between 6 months and 5 years.) <br />Brian A. Warierson, Geologist Date <br />Brian A. Wtitterson, R.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company (970-870-2750) <br />enclosures <br />ec: ~tv~G; CWPS Permit No. CO-0027154 file <br />