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~ Twentymile Coal Company <br />March I, 1996 <br />Ms. Kathleen Sullivan <br />Colorado Department of Health <br />Water Quality Control Division -Permits and Enforcement <br />4300 Cherry Creek Drive Sou[It <br />Denver.CO 80222-1530 <br />29515 Routt County Road p27 <br />Oak Creek, CO 80467 <br />Phone (303) 879-3800 <br />RE: Permit No CO-0042161• Amended DMR's• Outfall OOIA <br />Dear Ms. Sullivan: <br />Enclosed please find the above referenced amended DMR's for both the third and fourth quarters of 1995. <br />The DMR's are amended to include daily maximum TDS values as required. Confusion stemming from the <br />incorrect 30-day avetage limitation specified on the newest DMR forms resulted in the inadvertent omission <br />of this data. While 30-day average values are not required to be reported (the permit requires only <br />quarterly monitoring frequency), daily maximum values should be reported and aze now included. [f you <br />have any questions or need any additional information please contact meat (970) 879-3800, ext 2730. <br />TWENTYMILE COAL COMPANY <br />~G ~~- <br />Karl C. Koehler <br />Environmental Engineer <br />/kck <br />cc: Permit No. CO-0042161 file <br />EPA <br />DMG <br />