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©~~ <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970) 879-3800 <br />REC~.:~~" <br />OCT 3 ~ ~~D2 <br />Oivisisn °t Minerm..:~~ Ge°I°gy <br />October 24, 2002 <br />Ms. Cada Lenkey <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 />C-~~~z-C~``~ <br />RE: PERMIT CO-0036684: 3RD QUARTER 2002 DMR SUBMITTAL <br />Dear Ms. Lenkey: <br />Please find enclosed the above reterenced discharge monitoring reports for the period from July 1, 2002 through September <br />30, 2002. No permit limitation exceedences occurred dudng 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 />>t 00% for C. Dubia. Copies of the CDPS W ET Test Report Forms 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 />Twentymile Coal Company <br /><~ <br />Sandra White <br />Environmental Assistant <br />Enclosures <br />cc: DMG <br />CWPS Permit No. CO-0036684 file <br />