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C' -I~t$ 2-OS(~ <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970)879-3800 <br />RECE9V~C <br />MAY 0 204 <br />April 26, 2004 Olviaimn mi Minerals grid Geulovq <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 ST QUARTER 2004 DMR SUBMITTAL <br />Dear Ms. Lenkey <br />Please find enclosed the above referenced discharge monitoring reports for the period from January 1, <br />2004 through March 31, 2004, for Ouffalls OO1A (site 115), 002A (300E), and 3001. No permit <br />exceedances occurred during this period. <br />Note that Outfal( 001A discharged only during the last two weeks in January, and did not discharge to <br />Fish Creek during either February or March. Outtall 002A flowed during the first two weeks in January, <br />and each week in February and March. 3001 flowed each week of the period. <br />A Quarterly Whole Effluent Toxicity (WET) test was collected for Outtall OO1W in January 2004. This <br />test indicated that the effluent was not acutely toxic to Daphnia magna survival. Copies of the WET <br />Test Report Form are attached. <br />Please contact me directly at (970) 870-2750 with any questions <br />~_ ~~/ - <br />Brian A. Watterson, R.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company <br />Enclosures <br />cc: DMG ' ~it'idr7: D6=6642aFs1_file_. ~ <br />