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i <br /> QA/QC*port <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> Sherwood Labs Corporation, Hilmar, CA <br /> Lab Report No.: H2O61903 Date: 06/24/2002 Page.2 <br /> QC Batch: SWA062002 Project Name: Lab Generated or Non COE Sample <br /> Matrix: Water Project No.: Lab Generated or Non COE Sample <br /> Lab Samp ID: BWA062002 Field ID: Lab Generated or Non COE Sample <br /> Basis: Not Filtered Lab Ref ID: PH2O61052Q <br /> Acceptance <br /> Analysis Spike Level Sample Spike Result % Recoveries Criteria <br /> Analyte <br /> Method MS DMS Result MS DMS Units MS DMS RPD % Rec RPD <br /> Benzene SW8020F 3.72 3.72 NO 3.42 3.38 UGIL 91.9 90.9 1.1 130-70 MEA 30MEP <br /> ' <br /> Ethylbenzene 5W6020F 8.69 8.69 NO 8.45 7.97 UGlL 97.2 91.7 5.8 130-70 MEA 30MEP <br /> Gasoline SW8020F 637. 637. NO 660. 619, UGIL 104 97.2 fi.B 130-70 MEA 30MEP <br /> Methyl-tert-butyl ether(MTBE) SW8020F 43.64 43.64 NO 49.43 51.45 UGIL 113 11B 4.3 130-70 MEA 30MEP <br /> Toluene SWB020F 31.59 31.59 NO 31.04 29.13 UGIL 96.3 92.2 6.4 130.70 MEA 3DMEP <br /> SW8020F 48. 48. 0.54 47.03 45.82 UGIL 95.6 93.1 2.6 130-70 MEA 30MEP <br /> Xylenes <br /> 4-Bromofluorobenzene SW8020F 100. 100. 101. 109. 108. PERCENT 109 108 0.92 130-7D SMSA 30SMEP <br /> Chlorobenzene <br /> 5W8020F 100, 100. 100. 192. 167. PERCENT 1921 1671 14 130-70 SMEA 30SMEP <br /> EW:Surr.recovery outside of acceptance limits,Spike recov.accept. <br />