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~~ <br />-.r_ - <br />~II ~II'll~l~~~~l ~I~ • <br />BATTLE MOUNTAIN GOLD COMPANY <br />!~ <br />94TiLE MOUNWN <br />GOLD COMPPNY <br />May 13, 1992 <br />r_~... r__ nrtp,..ad, SF°ci31 Agc.^.t <br />United States Department <br />of the Interior <br />United States Fish and Wildlife <br />Service Division of Law Enforcement <br />730 Simms Street, Room 158 <br />Golden, Colorado, 80401 <br /> <br />MAY 18 1992 <br />Mined Land <br />Re: Autopsy Results for Waterfowl Discovered at San Lois <br />Tailings Facility <br />Dear Mr. Mowad: <br />Enclosed with this letter is a report presenting the results <br />of the autopsies performed on two birds, one duck and one <br />coot, discovered near the San Luis Tailings Facility or <br />April 22, 1992. As you will note, the report concludes that <br />"there is no evidence to suggest that the cause of death in specimen <br />#1 and specimen #2 is related to emissions or ingestion of <br />process cyanide." <br />The report indicates that the autopsies were unable to <br />~.~Pntify a precise cause of death for each specimen. 'Ihe <br />duck autopsy (specimen #1) found that the duck's liver and <br />kidney exhibited elevated levels of cadmium (2.7 ppm liver, <br />7.9 ppm kidney). The coot autopsy (specimen #2) deterR.ined <br />that the coot's liver and kidney contained elevated levels <br />of selenium (9.4 ppm liver, 12.4 ppm kidney). The <br />concentrations identified in this letter were provided to us <br />by Industrial Compliance, Inc., the author of the enclcsed <br />report. The report indicates that the etiology of the <br />elevated metal levels is unknown due to the "high" <br />concentrations of these metals found in the environment, <br />i.e., "high concentrations of cadmium in many grains and <br />shellfish" and "high concentrations of seleniumin in many soils <br />and plants throughout the southwestern United States." The <br />P.O. BOX 310 SAN LUIS, COLORADO 81152-0310 (719) 672-3362 FAX (719) 672-3363 <br />