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RAGS <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970) 87&3800 <br />October 24, 2002 <br />Ms. Carla Lenkey <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division -Permits and Enforcement <br />4300 Cherty Creek Drive South <br />Denver, CO 80222-1530 <br />RE: PERMIT CO.0036684; 3RD QUARTER 2002 DMR SUBMITTAL <br />Dear Ms. Lenkey: <br />RE~~~~/E1~ <br />OCT 3 62002 <br />Please find enclosed the above referenced discharge monitoring reports for the period from July 1, 2002 through September <br />30, 2002. No permit limitation exceederices occurred during the period. <br />Quarterly Whole Effluent Toxicity (WET} tests were conducted for Outfall 001 the week of July 3, 2002. This site passed for <br />both species, with 'Concentrations with Statistically Significant Difference in Lethality' reported at 100% for P. Promelas and <br />>100% for C. Dubia. Copies of the CDPS W ET Test Report Fortes for both species are included with this submittal. <br />Please contact me directly at (970) 870.2751 for any further questions or additional information. <br />Twje~nt~ym~il~e ~Coa/l~C~omp~any <br />Sandra White <br />Environmental Assistant <br />Enclosures <br />.. <br />cc: DMG <br />CW PS Permit No. CO-0036684 file <br />