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<br /> <br />BACKGROUND NOISE SURVEY <br />WEST ELK MINE <br />MOUNTAIN COAL COMPANY <br />Somerset, CO <br />Prepared by <br />Noise Control Engineering Services <br />Lafayette, CO <br />and <br /> <br />• <br />Air Sciences Inc. <br />Lakewood, CO <br />Project 95-3 <br />May 1994 <br />r <br />i <br />