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Mountain Coal Company <br />West Elk Mine <br />Post Office Bax 591 <br />Someniet, Cokxado 81434 <br />Telephone 970 929-5015 <br />Fax 970 929.5595 <br />- - - -J <br />FEB ' 8 i99i <br />February 7, 1997 <br />Drvis,on ~, ~~~~~,~~,,., ~. , . „~nnv <br />Mr. Michael P. Boulay <br />Environmental Protection Specialist <br />Colorado Division of Minerals and Geology <br />1313 Sherman, Room 215 <br />Denver, CO 80203 <br />III IIIIIIIIIIIII III <br />999 <br />/\ <br />RE: Responses to December 9, 1996, Adequacy Review of 1995 Annual Hydrology Report <br />Responses; West Elk Mine; Permit No. C-80-007 <br />Dear Mr. Boulay: <br />Mountain Coal Company has revised one page of the 1995 Annual Hydrology Report in response <br />to the December 9, 1996 Adequacy Review of the 1995 AHR responses. The comments are <br />numbered below to correspond with the same numbered pazagraphs in the original review letter <br />dated September 6, 1996. <br />10. Data and discussions regarding the B East Mains inflow will be presented in the 1996 <br />AHR as the inflow occurred in the 1996 Water Year. The request for mine inflow data in <br />future AHRs will be addressed in the responses to the Division's request for a revision to <br />improve the hydrologic monitoring program (letter also dated December 9, 1996). <br />15. The data for Wilcox Reservoir No. 1, formerly G-37, that is presented on the laboratory <br />data sheets is summarized on the table presented in the AHR. To assist the Division, <br />MCC has rechecked the tables in the AHR to verify that data from the laboratory sheets <br />has been accurately transferred. During this check, another transcription error was noted, <br />and as a consequence, Table E-15 has been corrected and is included. As all data from the <br />laboratory data sheets are provided in the tables (and have been rechecked), no additional <br />information is provided on the laboratory sheets, and therefore, have not been included. <br />This information is on file at the mine office. <br />16. The data for GP-la, GB-1, and SW-3, that is presented on the laboratory data sheets is <br />summarized on the table presented in the AHR. As all data from the laboratory data <br />sheets are provided in the tables (and have been rechecked), no additional information is <br />provided on the laboratory sheets, and therefore, have not been included. This <br />information is on file at the mine office. <br />17. No response is required. <br />