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QA/QC Wort <br /> Matrix Spike/Duplicate Matrix Spike Summary • <br /> Sherwood Labs Corporation, Hilmar, CA <br /> Lab Repan No.: H2O91802 Date: 09/25/2002 Page: 15 <br /> QC Batch: BWA092102 Project Name: Lab Generated or Non COE Sample <br /> Matrix: Water Project No.: Lab Generated or Non COE Sample <br /> Lab Samp ID: BWA092102 Field ID: Lab Generated or Non COE Sample <br /> Basis: Not Filtered Lab Ref ID: PH2O90756Q <br /> Acceptance <br /> Analysis Spike Level Sample Spike Result % Recoveries Criteria <br /> Analyte Method MS DMS Result MS DMS Units MS DMS RPD % Rec RPD <br /> Benzene SW8020F 3.72 3.72 NO 2.99 2.96 UG1L 80.4 79.6 1.0 130-70 MEA 30MEP <br /> Ethylbenzene SW8020F 8.69 6.69 NO 7.47 7.77 UGlL 86.0 89.4 3.9 130-70 MEA 30MEP <br /> Gasoline SW8020F 637. 637. NO 609. 618. UG/L 95.6 97.0 1.5 130-70 MEA 30MEP <br /> Methyl-tent-butyl ether(MTBE) SW802OF 43.64 43.64 NU 49.67 49.52 UG1L 114 113 0.88 130-70 MEA 30MEP <br /> Toluene SW6020F 31.59 31.59 NO 26.87 26.27 UGIL 85.1 89.5 5.0 130-70 MEA 30MEP <br /> Xylenes SW8020F 1 48.65 48.65 NO 46.06 43.33 UG/L 94.7 89.1 6.1 130-70 MEA 30MEP <br /> 4-Bromofluorobenzene SW8020F 100. 100. 110. 103. 98. PERCENT 1o3 98.0 5.0 130-70 SMEA 30SMEP <br /> Chlorobenzene SW802OF 100. 100. 108, 134. 162, PERCENT 1341 1621 19 130-70 SMEA 30SMEP <br /> EW:Surr.recovery outside of acceptance limits,spike recon.accept. <br />