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1 <br /> ,g <br /> ik <br /> OLUMBIA ANALYTICAL SERVICES,INC!J <br /> I QA/QC Report <br /> Client: MWH Laboratories Service Request: L2301262 <br /> Project: . 110732 Date Extracted: 06/18/2003 <br /> Sample Matrix: Water Date Analyzed: 06/18/2003 <br /> Y i <br /> `i <br /> i 1 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> BTEX by 8021B <br /> Sample Name: 2306170026 Units: ug/L <br /> Lab Code: L2301262-001 Basis: NA <br /> i <br /> Extraction Method: EPA 5030 Level: Low <br /> Analysis Method: 8021B 'Extraction Lot: LWG0301494 <br /> 2306170026MS 2306170026DMS <br /> LWG030I494-1 LWG0301494-2 <br /> Sample Matrix Spike Duplicate Matrix Spike /„gee RPD <br /> I� a o <br /> Analyte Name Result Result Expected /oRec Result Expected /oRec Limits RPD Limit <br /> Benzene E ND 24.7 25.0 99 24.4 25.0 98 70-130 1 25 <br /> Toluene ND 24.7 25.0 99 24.5 25.0 98 70-130 1 25 <br /> Ethylbenzene ND 24.2 25.0 97 23.9 25.0 96 70-130 1 25 <br /> � I <br /> i <br /> i <br /> i <br /> fR I <br /> i� <br /> !4 <br /> '.f <br /> �k <br /> =4 <br /> L <br /> I <br /> E <br /> is E <br /> i <br /> I <br /> i <br /> i <br /> i <br /> I� <br /> Results flagged with an asterisk(•)indicate values outside control erlter12. - <br /> Results flagged with a pound(#)Indicate the control criteria is not applicable. <br /> Percent recoveries and relative percent differences(RPD)are determined by the software using values in the calculation which have not been rounded. <br /> s i <br /> `i <br /> Printed: 06/19/2003 10:42:16 Form 3A-Organic Page 1 of 1 i <br /> P:(STEALTHCRYSTAL.RPTtiFotm3DMS.rpt SupoSetReference: RR2890 <br /> sr <br /> EF <br /> i <br /> �s <br />