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Mountain Coal Company <br />West Elk Mlna <br />Post Ottiee 90~ 591 <br />Sanerset. ColoreCO 81434 <br />Telephone 303 9295015 <br />January 11, 1993 <br />Ms. Christine E. Johnston <br />Colorado Division of Minerals & Geology <br />Office of Mined Land Reclamation <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Dear Christine: <br />iiiiiiiiiiiiiiiihi <br />sss <br />`~ <br />Enclosed you will find West EIk Mine's (WEMs) subsidence data and <br />calculations. <br />Please note that there are two separate reports. The fast report represents the <br />F-Seam data from April 1985 through October 1992. The second report <br />covers surveys from October 1991 through October 1992 and represents B- <br />Seam subsidence monitoring. <br />If you have any questions, please feel free to contact me. <br />Sincerely, <br />~lJ ~" <br />Bonita K. Short <br />Environmental Coordinator <br />Enclosure(s) <br />ttECEIVED <br />zc: K.G. Welt w/o enclosure(s) <br />FEB ~ ~ iy~y, <br />LEGAL DEPARTMENT <br />BKSlnKr <br />M1CA620~ <br />