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H/1ZEN <br />Coors Energy Corp. <br />Donald W. MacDonald <br />PO Box 467 <br />Golden, CO 80402-0467 <br />Hazen Research,lnc. <br /> <br />4601 Indiana Street DATE January 24,2006 <br />Golden, CO 60403 USA HRI PROJECT 009-18 ., <br />Tel: (303) 279-4501 HRI SERIES NO A064/06 <br />Fax: (303) 278-1528 DATE RECD. 1/5/2006 <br /> CUST. P.O.# None Recd <br />REPORT OF ANALYSIS <br />SAMPLE NO. A064/06-2 <br />SAMPLE IDENTIFICATION: <br />PARAMETER <br />Boiler 4 Fly Ash 12/20/2005 <br />RESULT <br />Gross Alpha (+-precision'), pCi/g (T) <br />Gross Beta (+-precision'), pCi/g (T) <br />r~ <br />LJ <br />13(+-9) <br />16(+-7) <br />DETECTION ANALYSIS <br />LIMIT METHOD DATE <br />5.6 EPA 900.0 (Modified) 1/12/2006 <br />@ 1053 <br />5.6 EPA 900.0 (Modified) 1 /1 21200 6 <br />1053 <br />ANALYST <br />AW <br />AW <br />'Variability of the radioactive decay process (counting error) at the 95% confdence level, 1.96 sigma. <br />Certification ID's: CO/EPA 0000008; CT PH-0152; KY 90076; KS E-10265; NH 232805-A; <br />NYELAP 11417; PADEP 68-00551; RI LA000284; WI 998376610 <br />CODES: <br />(T) =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 />Page 2 of 2 <br />-97- <br />An Employee-Owned Company <br />