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<br /> <br />_ Hazen Research, Inc. DATE July 16, 1996 <br /> <br />~`~zEN 4601 Indiana St • Golden. COIO. 80403 <br />279 <br />4501 HRI PROJECT 009-18 <br /> - <br />Tel: (303) HRI SERIES NO . F056/96 <br />~ FAX~.(303)278~1528 <br />• DATE RECD 6/3/96 <br /> CUST. P O # None Recd <br />Coors Energy Corp. <br />Donald W. MacDonald <br />PO Box 467 <br />Golden, CO 80402-0467 <br /> REPORT OF ANALYSIS <br /> Tonicity Characterist ic Leaching Procedure <br />SAMPLE NO F056/96-1 <br />SAMPLE IDENTIFICATION: Bottom Ash 47eSt Elk Mine C081 <br /> TCLP SPIKE <br />RESULT DETECTION LIMIT RECOVERY ANALYSIS <br />PARAMETER mglt LIMIT mgll % METHOD DATE ANALYST <br />Arsenic 0.006 0.005 5.0 NR SW846 7060A 6/20/96 DY <br />Barium <p.5 0 5 100 NR SW846 6010A 6120/96 CH <br />Cadmium <0.01 0.01 1.0 NR SW846 7130 6/20/96 PW <br />Chromium <0.02 0.02 5.0 NR SW846 7190 6/20/96 PW <br />~ad <0.1 0.1 5.0 NR SW846 7420 6/20/96 PW <br />Mercury <0.001 0.001 0.2 NR SW846 7470A 6/18/96 SS <br />Selenium <0.01 0.01 1.0 NR SW846 7740 6/20/96 DY <br />Silver <0.02 0.02 5.0 NR SW846 7760A 6!20/96 PW <br />Date Extraction Started 06/13!96 6/13/96 DY <br />Extraction Fluid Used !!1 6/13/96 DY <br />Final pH 5.16 6/14/96 DY <br />=Not Requested <br />Note The Leach was done according to SW846 Method 1311. <br />B `-' <br />Y <br />R ert Rostad <br />Laboratory Manager <br />