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QA/ a ort <br /> p <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> Castle Analytical Laboratory,Atwater, CA <br /> Lab Report No H2041 608 Date 04/26/2002 Page 2 <br /> QC Batch VWMS-4222 Project[Name Lab Generated or Non COE Sample <br /> Matrix Water Project No Lab Generated or Non COE Sample <br /> Lab Samp ID VWMS-4222 Field ID Lab Generated or Non COE Sample <br /> Basis Not Filtered Lab Ref ID 4592-2WQ <br /> Analysts Spike Level Sample Spike Result % Recoveries A C�ntpena� <br /> Analyte Method MS DMS Result MS DMS Units MS DMS RPD % Rec RPD <br /> 1,2-Dibromoethene 8260FA 250 250 ND 294 272 UGIL 118 109 79 127-76 LSA 20LSP <br /> 1,2-Dichloroethane 8260FA 25 25 003 240 236 UGIL. 948 932 17 124-70 LSA 20 LSP <br /> Dl-isopropyl ether(DiPE) 0260FA 25 25 003 273 266 UGIL 108 105 28 151-51 LSA 20LSP <br /> Ethyl tert-buatyl ether(ETRE) 8260FA 250 250 ND 231 215 UGIL 924 860 72 138-57 LSA 20LSP <br /> Methyf-tert-butyl ether(MTBE) 8260FA 25 25 045 545 258 UGIL 200E 852 811 127162 LSA 20LSP <br /> tert-Amyl methyl ether(TAME) 8260FA 25 25 013 240 216 UGIL 908 812 11 122160 LSA 20LSP <br /> tent-Butyl alcohof(TBA) 8260FA 750 750 219 11724 10438 UGIL 153 136 12 168-42 LSA 20LSP <br /> 1,2-Dichloroethane-d4 8260FA 100 100 923 1091 1038 PERCENT 109 104 47 130-70 SLSA 20SLSP <br /> Toluene-d8 8260FA 100 100 107 960 996 PERCENT 980 996 16 130-70 SLSA 20SLSP <br /> BC Matrix spike out of control,lab control sample within limas <br />