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QA/QC epvrt <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> Sherwood Labs Corporation, Hilmar, CA <br /> Lab Report No.: H2O61906 Date: 07/01/2002 Page: 15 <br /> QC Batch: BWA062002 Project Naa*: Lbb Generated or Non COE Sample <br /> Matrix: Water Project Noa E Lbb Generated or Non COE Sample <br /> Lab Samp ID: BWA062002 Field ID: ra E Lbb Generated or Non COE Sample <br /> Basis: Not Filtered Lab Ref Ill,a N22061052Q <br /> Acceptance <br /> Analysis Spike Level Sample Spike Result 'ie:. %Zdecoveries Criteria <br /> Analyte Method MS DMS Result MS DMS Units RP M I DMS RPD % Rec RPD <br /> Benzene SW8020F 3.72 3.72 ND 3.42 3.38 UGIL 1 911 90.9 1.1 130-70 MEA 30MEP <br /> Ethylbenzene SW8020F 8.69 8-69 ND 8.45 7.97 UGIL £ 97. 91.7 5.8 130-70 MEA 30MEP <br /> Gasoline SW802OF 637. 637. ND 660. 619. UGIL f 14 97.2 6.8 130-70 MEA 30MEP <br /> Methyl-Cert-butyl ether(MTBE) SW8020F 43.64 43.64 ND 49.43 51.45 UGIL 11 118 4.3 130-70 MEA 30MEP <br /> Toluene SW802OF 31.59 31.59 ND 31.04 29.13 UGIL f 98 92.2 6.4 130-70 MEA 30MEP <br /> Xylenes SW8020F 48. 48. 0.54 47.03 45.82 UGIL 95 93.1 2.6 130-70 MEA 30MEP <br /> 4-Bromotiuorobenzene SW8020F 100. 100. 101. 109. 108. PERCENT 0. 10 108 0.92 130-70 SMSA 30SMEP <br /> Chlorobenzene SW802OF 100. 100. 100. 192. 167. PERCENT 1:11 1671 14 130-70 SMSA 30SMEP <br /> EW:Surr.recovery outside of acceptance limits,spike recov.accept. <br />