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QA/ ort <br /> (Matrix Spike/Duplicate Matrix Spike Summary <br /> Castle Analytical Laboratory,Atwater, CA <br /> Lab Report No.: H4112906 Date: 12/06/2004 Page: 17 <br /> QC Batch: VWMS-N304 Project Name: Lab Generated or Non COE Sample <br /> Matrix: Water Project No.: Lab Generated or Non COE Sample <br /> Lab Samp ID: VWMS-N304 Field ID: Lab Generated or Non COE Sample <br /> Basis: Not Filtered Lab Ref ID: 7561-6WQ <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 /> 1,2-Dibromoethane 8260FA 2.50 2.50 ND 2.52 2.55 UG/L 101 102 0,99 129.67 MSA 13MSP <br /> 1,2-Dichloroethane 8260FA 2.5 2.5 0.03 2.56 2.57 UG/L 101 102 0.99 13884 MSA 17MSP <br /> Di-Isopropyl ether(DIPE) 8260FA 2.50 2.50 ND 2.30 2.32 UG/L 92.0 92.8 0.87 131-70 MSA 28MSP <br /> Ethyl tert-butyl ether(ETBE) 8260FA 2.50 2.50 ND 2.55 2.47 UG/L 102 98.8 3.2 131-72 MSA 26MSP <br /> Methyl-tert-butyl ether(MTBE) 8260FA 2.50 2.50 ND 2.63 2.53 UG/L 105 101 3.9 137-60 MSA 31 MSP <br /> tert-Amyl methyl ether(TAME) 8260FA 2.5 2.5 0.24 2.79 2.82 UG/L 102 103 0.98 119-72 MSA 25MSP <br /> Cert-Butyl alcohol(TBA) 8260FA 75.0 75.0 ND 72.24 68.12 UG/L 96.3 90.8 5.9 153-55 MSA . 53MSP <br /> 1,2-Dichloroethane-d4 8260FA 100. 100. 96.1 93.5 95.9 PERCENT 93.5 95.9 2.5 13569 SALSA 20SMSP <br /> Toluene-d8 8260FA 100. 100. 90.9 91.8 92.0 PERCENT 91.8 92.0 0.22 132-63 SMSA 20SMSP <br />