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Kurds R. Blunt <br />Environmental Engineer <br />January 24, 2007 <br />Leslie Simpson <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division <br />4300 Cherry Creek Drive South <br />Denver, CO. 80246-1530 <br />I~'~'DEIVED <br />JAN 2 ~ TOOI <br />bn,:-.: ~,~ of n <br />furl„~,;g anc <br />9aiepy <br />RE: COLOWYO COAL COMPANY L.P. (COLOWI'O); MINDI NO. COG-600751 <br />FOURTH QUARTER 2006 DISCHARGE MONITORING REPORT (DMR) AND <br />EXCEEDENCE REPORT OUTFACE 001. <br />Dear Leslie, <br />Colowyo is submitting the fourth quarter 2006 discharge monitoring report to the Water Quality <br />Control Division. Please find the DMR reports attached for your review. The regulatory limit for <br />Total Suspended Solids Gross Effluent Value were exceeded during the fourth quarter of 2006 at <br />Outfall 001. Please see the attached exceedence report for additional information. <br />Thank you for your consideration. Please feel free to contact me if you have any questions or <br />concerns. I can be reached at (970) 824-1531. <br />Sincerely. <br />urtis R. <br />Environm <br />i <br />Encls. <br />C: CDMG/James S. w/encl <br />NPDES Reports Binder w/encl <br />C.F. 21.1.2 w/encl <br />Colowyo Mine • 5731 State Eiighway l3 • Meeker, Colorado 81641 <br />T +I 97Q 824 1500 • F +1 970 824 1504 • www.rtea.com <br />