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<br />Hazen Research, Inc. <br />4601 Indiana St. • Golden, Colo. 80403 <br />H/~ZEN Tel: (303) 279-4501 • Telex 45-860 <br />_ FAX: (303) 278-1528 DATE September ~2, 1993 <br />HRI PROJECT 009-18 <br />FffiI SERIES N0. H140/93-A <br />DATE RECD. 08/06/93 <br />CUST P.O.# tJone Recd <br />Coors Energy Company - Keenesburg Mine <br />Jack Epple <br />PO Box 355 <br />Keenesburg, CO 80643 <br />REPORT OF ANALYSIS <br />Toxicity Characteristic Leaching Procedure <br />SAM?LE <br />SAMPLE N0. H140/93-1 <br />IDENTIFICATION: <br />#265 Ash Sample <br /> TCLP <br /> REE UL7 DETECTI011 LIFII7 SPIKE AnALYSIS <br />PA F. AIlETES~ mg/1 LI61IT mg/1 RECOVERV,~ HETH00 DATE A11A LV57 <br />Arsenic <0.2 0.2 S.U 107 EPA 206.4 08/18/93 I~IP <br />E arium <0.5 0.5 700 97 SN846 6010 00/13/93 S19 <br />Datlmium <0. 03 0.03 1.0 101 511946 7730 08/13/93 PN <br />fomium <0.05 0.05 5.0 117 511846 7190 08/13/93 Pl'! <br />atl 0.8 0.3 5.0 97 511846 74:0 08/13/93 PFI <br />I~Ie r^ury c0.0C1 0.001 0.2 75 51Y846 7470 08/12/93 E5 <br />Selenium 0.08 0.03 ' 1.0 85 SH846 7740 08/13/93 DV <br />Si l'+er <0.05 0.0: 5.0 108 511846 7760 08/73/93 P1'! <br />E rtraction Fluio Usen: a1 <br />Dare Extraction Started: 08;11/93 <br />Feral oH. 5.14 <br />By. <br />R ert Rostad <br />aboratory t4anager <br />CODES <br />(T)=Total (D)=Dissolved <br />(S)=Suspended (R)=Recoverable <br />(PD)=Potentially Dissolved <br /><=Less Than <br />Note: The leach was done according to SW846 Method 1311. <br />• <br />