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iii iiiiiiiiiiiiiiii <br />July 27, 2001 <br />Ms. Carla 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 />RE: PERMIT CO-0042161:1" QUARTER 2001 DMR SUBMITTAL <br />Dear Ms. Lenkey: <br />RECEIVED <br />JUL 31 2001 <br />Division of Minerals & Geology <br />Please fnd enclosed the above referenced discharge monitoring reports for the period from January 1, 2001 through March <br />31, 2001. As discussed in our telephone conversation of 7/27/2001, my predecessor left the company in March of this year. <br />During his departure, the subject report was apparently overlooked and not forwarded to the Department. Since I have filled <br />this position as of this June, the problem should not arise again. <br />No permit limitation exceedences occurred during this reporting period. Quarterly Whole Efnuent Toxicity (WEB tests were <br />conducted for Outiall 001 the week of April 6, 2001. This site passed for both species, with "Concentrations with Statistically <br />Significant Difference in Lethality" reported at 75% for P. Promelas and 75% for C. Dubia. Copies of the CDPS WET Test <br />Report Forms for both species are included with this submittal. <br />Please contact me at (970) 870-2750 for any further questions or additional information. <br />Twentymile Coal Company <br />~ ~~ ~ / <br />Brian A. Watterson, R.G. <br />Environmental Geologist <br />enclosures <br />RAG <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970)879-3800 <br />cc:1~~ <br />CWPS Permit No. CO-0042161 file <br />