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~~ MOUNTAIN COAL <br />COMPANVL.L.c. <br />A Subsidiary of Arcb Wes~em Resources, LLC <br />June 18,1999 <br />Mr. Jim Burnell <br />Colorado Division of Minera]s and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RECE~~ED <br />dllN 211999 <br />pivision of Minerals li Geology <br />iii iiiiiiiiiiiii iii <br />999 <br />West Elk Mine <br />P O Box 591 <br />5174 Highway 133 <br />Somerse4 CO 81474 <br />(970)929-5015 <br />Fax 1970)929-5591 <br />RE: 1998 Year-End Subsidence Report; West Elk Miuc; Permit No. C-80-007 <br />Dear Jim: <br />Please find enclosed a letter report summarizing a visual subsidence survey completed by <br />Richazd Dlmrud in September 1998. Mr. Dunrud supplemented his report with videotape of his <br />field observations. A copy of this video can be supplied to the Division if requested. The report <br />includes a majority of the details requested by the Division during the review of Technical <br />Revision No. 89. <br />MCC also completed monitoring of the subsidence grid in October 1998. This data was supplied <br />to the Division with the Technical Revision No. 89 application, which also proposes to <br />discontinue monitoring of the grid. <br />Please call if you have any questions. <br />Siipcerel}%, <br />Christine E. <br />Envirorunem <br />ec: Henry Barbe <br />Phil Schmidt <br />9gyasuba.doc <br />