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C/?9-0 -- 0 a 7 <br />s,eyi,7ew `1/! o wry f'e ri.;J <br />YY <br />FINAL REPORT 6? 3 _ 2-0o? <br />NORTH FORK VALLEY SEISMIC NETWORK <br />MONITORING REPORT <br />tj , <br />MOUNTAIN COAL COMPANY <br />WEST ELK MINE <br />SOMERSET, COLORADO <br />13 November 2009 <br />Prepared by <br />Fabia Terra, Ivan Wong, and Danielle Lowenthal-Savy <br />Seismic Hazards Group <br />URS Corporation <br />1333 Broadway, Suite 800 <br />Oakland, CA 94612 <br />THIRD QUARTER <br />2009