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C' / i8a 607 <br />FINAL REPORT <br />Ref off p <br />/sf Q N ., firer ?uo$ <br />NORTH FORK VALLEY SEISMIC NETWORK <br />MONITORING REPORT <br />+r_n <br />MOUNTAIN COAL COMPANY <br />WEST ELK MINE <br />SOMERSET, COLORADO <br />16 May 2008 <br />Pr17)c11-c (I bI- <br />.Jacqueline Bott, Ivan Wong, and Fabia Terra <br />Seismic Hazards Croup <br />URS Corporation <br />1333 Broadway, Suite 800 <br />Oakland, CA 94612 <br />RECEIVED <br />MAY 19 2008 <br />Division or Reclamation, <br />Mining and Safety <br />FIRST QUARTER <br />2008