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_ Hazen Research, IIfC. DATE February 2, 2004 <br /> 4601 Indiana Street HRI PROJECT 009-18 <br />• ~ <br />- Golden, CO 80403 USA <br />Tel: (303) 279-4501 <br />HRI SERIES NO. <br />DATE RECD <br />L321/03 <br /> Fax: (303) 278-1528 12/19/2003 <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 />SAMPLE NO. L321/03-2 <br />SAMPLE IDENTIFICATION: #5 Boiler Fly Ash <br />DETECTION ANALYSIS <br />PARAMETER RESULT LIMIT METHOD DATE ANALYST <br />Gross Alpha (+_precision*), pCUg m 57(+_13) 4.3 EPA 900.0 (Modified) 01/21/2004 SLM <br />@ 1926 <br />Gross Beta (+_precision'), pCi/g m 32(+-8) 5.5 EPA 900.0 (Modified) 01/21/2004 SLM <br />@ 1926 <br />• <br />"Variability of the radioagive decay process (counting error) at the 95% confidence level, 1.96 sigma. <br />Certification ID's: CO/EPA - 0000008; CT - PH-0152; KY - 90076; KS - E-10265; NH - 232803-A; <br />NY ELAP - 11417; PA DEP 68551; WI - 998376610 <br />CODES: <br />m =Total (D) =Dissolved <br />(S) =Suspended (R) =Total Recoverable <br />(PD) =Potentially Dissolved <br />< =Less Than <br />By: <br />Robert Rostad <br />Laboratory Manager <br />AHR-2003 -93- <br />An Employee-Owned Company <br />