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III IIIIIIIIIIIII III <br />999 <br />Mountain Coal Company <br />West Elk Mine <br />Post Office Box 591 <br />Somerset, Colorado 81434 <br />Telephone 303 929 5015 <br />June 3, 1993 <br />RFCEIV~D <br />JUN 7199 <br />/\ <br />Ms. Christine E. Johnston I)iwslpn u' :~h~~e'~'o °'ae01eyY <br />Colorado Division of Minerals and Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Re: West Elk Mine, Permit No. C-80.007, Request for Ertension of Field Minor <br />Revision No. 87 <br />Dear Christine: <br />Mountain Coal Company (MCC) requests an extension from May 14, 1993 to June 16, <br />1993, to submit a minor revision application to provide supporting information for field <br />minor revision No. 87. MCC's consultant, Envirocon, Inc, received the fina128~ay <br />laboratory break data on the roller wmpacted concrete buttress just yesterday. The last <br />stability analysis run is presently being completed utilizing this data. The minor <br />revision application will include the complete stability analysis by Envirocon, Inc. and <br />reclamation bond calculations. <br />Please don't hesitate to contact me should you have questions. <br />Sincerely, /' / <br />~irlcfz~n ~. W ~ <br />Kathleen G. Welt <br />Environmental Supervisor <br />