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_ Hazen Research, Inc. <br /> 4601 Indiana St.•Golden, Colo. 80403 <br /> HAZEN Tel: (303) 279-4501 •Telex 45-860 DATE August 17, 1990 <br /> _ FAX: (303) 278-1528 HRI PROJECT 009-117 <br /> HRI SERIES NO. H27/90 <br /> DATE RECD. 8/2/90 <br /> CUST P.O.# SO-VA-003 <br /> Climax Molybdenum Company <br /> Mr. Dave Sperling <br /> Climax, Colorado 80429 <br /> REPORT OF ANALYSIS - TAILING MATERIAL <br /> -------------------------------------------------------------- <br /> Toxicity Characteristic Leaching Procedure <br /> ----------------------------------------------------------------- <br /> Limit <br /> Rifle Range 8/1/90 Concentration <br /> Arsenic, mg/l <0.01 5.0 <br /> Barium, mg/1 <0. 1 100 <br /> Cadmium, mg/1 <0.01 1.0 <br /> Chromium, mg/1 <0.01 5.0 <br /> Lead, mg/l <0.05 5.0 <br /> Mercury, mg/l <0.0001 0.2 <br /> Selenium, mg/l <0.005 1.0 <br /> Silver, mg/l <0.01 5.0 <br /> By: <br /> Robert Rostad <br /> Laboratory Manager <br /> NOTE: The leach was done according to the procedure specified in 40 CFR Part <br /> 261 Appendix II . All subsequent analyses were done according to procedures <br /> specified in Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, <br /> EPA publication SW-846, 3rd ed. with the exception that the final analyses were <br /> not done by the method of standard additions. <br />