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Richartl D. Lamm <br />Governor <br />DEPARTMENT OF NATURAL RESOURCES <br />Davin H. Getcnes, Executive Director <br />MINED LAND RECLAMATION DI\ <br />DAVID C. SHE LTO N, Director <br />Apri 1 11, 1986 <br />Mr. Steve Self <br />Eastside Coal Company <br />P. 0. Box 161 <br />Silt, Colorado 81652 <br />Re: 1985 Annual Hydrology Review, Eastside Mine - File No. C-84-063 <br />Dear Mr. Self <br />The Division has completed its review of the Eastside Mine Annual Hydrology <br />Report. Two general problems were noted. First, Eastside Coal Company <br />must take greater care to insure that all required monitoring is completed <br />in the appropriate time frames. Enforcement action will be taken if the <br />monitoring program is not followed. <br />Second, the data presented raises some questions which were not addressed <br />in the narrative of the report. Specifically, the field temperatures and <br />lab temperatures were exactly the same, as were the above and below mine <br />flow rates. This seems unlikely. In addition the field pH of the samples <br />was nearly 2 units less than the lab pH measurements. The reason for this <br />difference is not explained. The Division requires that Eastside Coal Company <br />submit an interpretation of this data which addresses these questions by <br />May 1, 1986. <br />Sincerely, <br />Jeffrey Deckler <br />Reclamation Specialist <br />JD/srs <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />III IIIIIIIIIIIIIIII <br />999 <br />