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MOUNTAIN COAL <br />-" ; COMPaNYL.L.c. <br />A 5ubsidian' of .{rch Wesmrn Resources. LLC <br />October 8, 1999 <br />^~CEIVED <br />OCT 13 1999 <br />Mr. Jim Burnell ,;,w,~,,., .,, ..rrnerah 8 Geology <br />Colorado Division of Minerals and Geoloev <br />1313 Sherman Street, Room 21 ~ <br />Denver. CO 80203 <br />RE: 1999 Subsidence Survey; West Elk dine; Permit No. C-80-007 <br />Dear 1im: <br />III ll IIIIIII 1111 llllllllll <br />Wzst Elk Mine <br />P O Bay i91 <br />517! Hiehwav ISi <br />Somerset. CO SIa3J <br />(97010'_9-015 <br />Fae 1970)0_9-595 <br />Please find enclosed the 1999 Subsidence Survey for the West Elk Mine completed by Rich <br />Dunrud of Wright Water Engineers. Mr. Dunntd visited sites previously visited including Jumbo <br />Mountain, the areas over the 10 and I I Northeast Panels, and the areas over panels 12 and 13. <br />Mr. Dunrud also completed apre-subsidence survey over areas that IvICC expects to mine in the <br />near future (panels 13A and 14). Apre-subsidence survey was also completed over the northern <br />most Box Canyon panels (panels 18-24), although they will not be mined for some time. <br />Longwall mining completed since the last survey includes the completion of panel I 1 and panel <br />12. MCC is currently mining panel 13 with an expected completion of January 2000. The <br />longwall will then be moved to panel 13A and then to panel lei. <br />As no new cracks have been observed, and previously identified cracks are nearly healed; future <br />reports will not include observations in the Jumbo Mountain area. <br />Please call if you have any questions. <br />S~tffcerely, <br />I' ~ ~ 1 <br />~~~~ <br />Christine E. Johns ~ <br />Environmental En in er <br />.-- <br />cc: Henry Bazbe <br />Phil Schmidt <br />subrpt99 doc <br />