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J. E. STOVER 8~ ASSOCIATES <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (970) 245101, FAX 242-7908 <br />MINE ENGINEERING <br />MINE RECLAMATION <br />January 27, 1998 <br />Mr. David Berry <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Re: Bear Coal Company <br />MCC TR-080 <br />Permit C-81-033 <br />Dear Mr. Berry: <br />III IIIlilllllllllll <br />999 <br />CIVIL ENGINEERING <br />CONST. MANAGEMENT <br />RECEIVED <br />JAN 2 9 1999 <br />Division of Minerals 8 Geology <br />Enclosed for your information and files is Bear's wastewater biomonitoring report for <br />December 1997. Results found that the effluent was acutely toxic to C. dubia. Two <br />accelerated tests were performed in January. Neither test found the effluent was toxic <br />to C. dubia so no pattern of toxicity was found and the toxicity episode ended. <br />Please call if you have any questions. <br />Sincerely, <br />~~ <br />J. E. Stover, P.E. <br />Consulting Engineer <br />cc: Bear Coal Company <br />Kathleen G. Welt -MCC <br />