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CJt l V l~-V~ <br />BTU Empire Corporation <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970)879-3800 <br />July 26, 2007 <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 />RECE'~E~ <br />JUL 3 0 2001 <br />Division of 4°~amation, <br />Mining and Safety <br />RE: PERMIT CO-0034142; BTU EMPIRE 2ND QUARTER 2007 DMR SUBMITTAL <br />Dear Ms. Watson: <br />Enclosed, please find the above referenced discharge monitoring report for the period April 1, 2007 through June 30, 2007. <br />Outtalls 003A/003X and 022A/022X flowed each week of the period. Ouffall 024A/024X did not flow during the period. No <br />permit excursions were noted during this period. <br />In 2004, BTU Empire received approval from CDPHE to reduce the frequency of Whole Effluent Toxicity (WET) testing for <br />Outfalls 003X, 022X, and 024X to an annual basis (a change from the previous quarterly basis). Annual chronic WET testing <br />was performed during April of 2007. WET testing for Ouffalls 003X and 022X tests indicated that the effluent was not acutely <br />toxic to Daphnia magna or fathead minnow survival (see attached laboratory reports). <br />Outfalls, 004A, 007A, 009A, 011A, 012A, 013A, 014A, 015A, 016A, 017A, 018A, 019A, 020A, 021 A, 023A, and 024A/024X did <br />not discharge during this period. In order to reduce the amount of paper work, the following certification will be substituted for <br />the actual DMR forms to cover the outtalls, which did not discharge. <br />! certify underpenalty of law that /have personally examined and am familiar with the information 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, tam aware that there are significant penalties for submitting /alse information, 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 [o $10,000 and/or maximum imprisonment of between 6 months and 5 years.) <br />Brian A. Watt on, Geologist Dat <br />Please contact me directly at (970) 870-2750~with any questions. <br />~~ ~~_~ <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group <br />BTU Empire Corporation <br />enclosures <br />cc: DRMS CWPS Permit No. CO-0034142 file <br />