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Q C Report <br /> Blank Spike/Duplicate Blank Spike Summary <br /> Castle Analytical Laboratory,Atwater, CA <br /> Lab Report No.: H4110401 Date: 11/15/2004 Page: 29 <br /> QC Batch: VWMS-NO94 <br /> Matrix: Water <br /> Lab Samp lD: VWMS-NO94 <br /> Acceptance <br /> Analysis Spike Leel Spike Result % Recoveries Criteria <br /> Analyte Method LCS LCD LCS LCD Units LCS LCD RPD %Rec RPD <br /> Analyte 8260FA 2.50 NA 2.52 NA UGIL 101 NA NA 129-67 LSA NA <br /> 1 mmoethane <br /> 1,2-01chloroethane 8260FA 2.50 NA 2.33 NA UG/L 93.2 NA NA . 13864 LSA NA <br /> Di-Isopropyl ether(DIPS) 8260FA 2.50 NA 2.70 NA UGIT. 108 NA NA 131-70 LSA NA <br /> Ethyl tert-butyl ether(ETRE) 8260FA 2.50 NA 2.59 NA UG/L 104 NA NA 131-72 LSA NA <br /> Methyl-cert-butyl ether(MTBE) 8260FA 2.50 NA 2.64 NA UGIL 106 NA NA 137-60 LSA NA <br /> tert-Amyl methyl ether(TAME) 8250FA" 2.50 NA 2.27 NA UGIT- 90.8 NA NA 119-72 LSA NA <br /> tert-Butyl alcohol(TBA) 8260FA 75.0 NA 82.30 NA UGIL 110 NA NA 153-65 LSA NA <br /> 1,2-Dichtaraethane-d4 8260FA 100. NA 98.1 NA PERCENT 98.1 NA NA 13559 SLSA NA <br /> Toluene-l8 8260FA 100. NA 99.0 NA PERCENT 99.0 NA NA 1323 SLSA NA <br />