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P~' ` The Pittsburg & Midway Coal Mining Co. <br />~/1 A Chevron Company <br />6400 South Fiddler's Green Circle, Englewood, CO 80111.4991 <br />Mail Add2ss: P.O. Box 6516, Englevrood, CO 801556516 <br />January 18, 1999 <br />tiECEIVED perTnit CO-0032638 <br />JAN 2 U ~ggg <br />...~. ~ ~~ .+~~nerals 8 Geobgy <br />Colorado Department of Health <br />WQCD-PE-B2 <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />Dear Sir/Madam: <br />Enclosed are the Edna Mine's December 1998 water monitoring reports and the fourth Quarter <br />1998 Acute Whole Effluent Toxicity test results. <br />DMP 004 and 007 discharged during the month. DMP 001 had no dischazge during the month. <br />All discharges from DMP 004 and DMP 007 during the monitoring period were within current <br />compliance criteria. <br />During this quarter's WET test cycle both of the two sites requiring acute testing had discharged. <br />Effluent samples from outfalls 004 and 007 were collected on November 2, 1998 for testing <br />fathead minnows and c. dubia. Samples from the outfalls showed no acute toxicity to the fathead <br />minnows nor the c. dubia. Should you have any questions regazding these reports, please contact <br />me at (303) 930-4027. <br />Sincerely, <br />~~_n ~~~. <br />Brian D. Gontarek <br />Sr. Environmental Engineer <br />cc: U.S.E.P.A. <br />CDMG <br />