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W/1ZEN <br />• <br />Coors Energy Corp <br />Donald W. MacDonald <br />PO Box 467 <br />Golden, CO 80402-0467 <br />Hazen Research, Inc. <br />460t Indiana St. • Golden, CO 80403 <br />Tel (303) 279-4501 <br />Fax. (303)278-t 528 <br />DATE January 5, 1999 <br />HRI PROJECT 009-18 <br />HRI SERIES NO. L226/98 <br />DATE RECD 12/11/98 <br />COST P O.t! None Recd <br />REPORT OF ANALYSIS <br />SAMPLE N0. L226/98-2 <br />SAMPLE IDENTIFICATION: Fly Ash 12/07/98 <br />PARAMETER RESULT <br />Gross Alpha (+_precision'), pCi/g (T) 31(+-10) <br />Gross Bela (+-Precision'), pCi/g (T) 25(+-7) <br />• <br />DETECTION ANALYSIS <br />LIMIT METHOD HATE ANALYST <br />3 EPA 900.0 (Modified) 12/23/98 EDF <br />0831 <br />6 EPA 900.0 (Modified) 12/23/98 EDF <br />0831 <br />'Variability of the radioactive decay process (counting error) at the 95% confidence level, 1.96 sigma. <br />Certification Authority Lab ID's: CO/U S. EPA Region VIII - XM; CT - PH-0152; KY ~ 90076, KS - E 10265; <br />NH - 232897-A, NY ELAP - 11417, PA DEP 68551 <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 />A HR-1998 -98- <br />