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• <br />H/-ZEN <br />Coors Energy Corp. <br />Donald W. MacDonald <br />PO Box 467 <br />Golden, GO 80402-0467 <br />Hazen Research, Inc. <br />4601 Indiana SI. • Golden. Colo 80a03 <br />Tel: (303) 279 a50t <br />FAX: (303) 278~t528 <br />REPORT OF ANALYSIS <br />PARAMETER <br />Gross Alpha (+-Precision'), pCi/g (T) <br />Gloss Beta (+.Precision'), pCJg (T) <br />u <br />SAMPLE NO L464/97-2 <br />SAMPLE IDENTIFICATION <br />Boiler #5/4 Fly Ash collected on 12/15/97 @ 1230 <br />DATE December 31, 1997 <br />HRI PROJECT 009-18 <br />HRI SERIES NO L464/97 <br />DATE RECD 12/17/97 <br />COST P O tr None Recd <br />DETECTION ANALYSIS <br />RESULT LIMIT METHOD DATE ANALYST <br />32(+-10) 4 EPA 900.0 (Modified! 12!22/97 RPO <br />@ 1220 <br />21(+-7) 6 EPA 900.0 (Modified) 12/22/97 RPO <br />@ 1220 <br />`Vanabildy of the radioactive disintegration process (counling error) at the 95% confidence level. 1 96 sigma <br />Cendication Aulhoiity Lab ID's: <br />CO/U S EPA Region VIII - XM; CT - PH-0152; KY - 90076, KS E-10265; NH 232897-A, NY ELAP - 11417 <br />CODES. <br />(T) =Total (D) =Dissolved , <br />. (S) =Suspended (R) =Total Recoverable <br />(PD) =Potentially Dissolved <br />=Less Than <br />,/p~ <br />Rob@fkRostad <br />Laboratory Manager <br />-93- <br />