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~ III IIIIIIIIIIIIIIII ~ , l'~~"~ <br />DEPARTMENT OF NATURAL RESOURCES <br />Davitl H. Getches, Executive Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />Richard D. Lamm <br />Governor <br />DATE: November 1, 1985 <br />T0: Dan Mathews ~ <br />FROM: Bob Liddle ,// CL ".- <br />RE: Twentymile Coal Company, Foidel Creek Mine No. C-82-056 1984 Annual <br />Hydrologic Report <br />I have reviewed the TCC Annual Hydrologic Report submitted July 8, 1985. The <br />report appeared complete and well organized. There were several data gaps, <br />However, it appears that TCC is now sampling for all required parameters. <br />The narrative discussion of interpretation of data was very short and not very <br />comprehensive. More effort could have been made discussing what the data <br />showed. Some discussion could have been provided on salt loading, actual vs. <br />predicted mine discharge quality, concerns over receiving stream standards, <br />and elevated spoils water table. For this year's report it probably makes <br />sense that MLRD pursue these issues during the pending permit review process. <br />Due to a lack of thorough interpretation of the data I cannot recommend any <br />reduction or termination of any of the monitoring requirements at this time. <br />/ph <br />Doc. No. 4640 <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />