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RGIi±~1°,m~ Twentymile Coal Company <br />29515 Routt County Road # 27 <br />JAN 3 0 2006 Oak Creek, Colorado 80467 <br />(970)879-3800 <br />t)iylaNn dt Minerals and GeWaBY <br />January 27, 2006 <br />Mr. Clyde Sharp <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 />AE: PERMIT CO-0027154: DECEMBER 2005/4th QUARTER 2005 DMR SUBMITTALS <br />Dear Mr. Sharp: <br />~1 ~z-~-~ <br />Enclosed, please find the above referenced discharge monitoring reports for the period October 1, 2005 through December <br />31, 2005. The only Outfall flowing during the period was 005A (Pond D), which flowed each week of the period. No permit <br />exceedances were noted. <br />Quarterly Whole Effluent Toxicity (WET) tests were conducted for Outtall OO5W in November 2005. The test indicated that the <br />effluent was not acutely toxic to Daphnia magna survival (see attachments). 007W did not flow to Foidel Creek during the <br />quarter, therefore no Quarterly Whole Effluent Toxicity (WET) tests were conducted. <br />Outfalls 002A (Pond T), 003A (Pond B), 004A (Pond C), 006A (Pond E), 007A/007W (Pond F), and OOSA (Pond G) did not <br />discharge during the period, therefore no chemical tests were conducted. Outfall 020A/020W has not yet been constructed, <br />therefore sampling of this site has not occurred. Note that ponds A (Outtall 001A/OO1W), and H (Outfall 009A) have been <br />deactivated following bond release, and have been removed from the newly amended permit, effective January 1, 2003. In <br />order to reduce the amount of paper work, the following certification will be substituted for the actual DMR forms to cover the <br />outfalls, which did not discharge. <br />CERTIFICATION <br />1 certi/y under penalty of law that I have personally examined and am familiar with the in/ormation submitted herein; and <br />based on my inquiry of those individuals responsible for obtaining the information, I believe the submitted information is <br />true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the <br />possibility o/line and imprisonment See 18 U.S.C. § 1001 and 33 U.S.C. § 1319. (Penalties under these statutes may <br />include fines up to $70,000 amend//or maximum imprisonment of between 6 months and 5 years.) <br />~-Gr'~7}/r.~ / 2 a <br />Brian A. Watterson, Geologist Date <br />Please contact me at (970) 870-2750 with any questions <br />~~~~~~ <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company <br />enclosures <br />cc: l3IvI6`CV~PS Permit No. CO-0027154 file <br />