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1 <br /> QA/QC Report <br /> Method Blank Summary <br /> Castle Analytical Laboratory, Atwater, CA <br /> Lab Report No.: H4072613 Date: 08/05/2004 Page: 2£ <br /> ' QC Batch: VWMS-8044 Analysis: Volatile Organic Compounds by GCIMS Fuel <br /> Matrix., Water Method: 8260FA <br /> Lab Samp ID: VWMS-8044 Prep Meth: SW5030B <br /> Analysis Date. 08/04/2004 Prep Date: 08/04/2004 <br /> ' Basis: Not Filtered Notes: <br /> Analyte Det Limit Rep Limit Note Result Units Pvc Dil <br /> Methyl-tert-butyl ether(MTBE) 0.289 0.5 MRL ND UG/L 1 <br /> Ethyl tent-butyl ether(ETRE) 0.084 0.5 MRL ND UG/L 1 <br /> tert-Amyl methyl ether(TAME) 0.067 0.5 MRL Na UG/L 1 <br /> ' Di-isopropyl ether(RIPE) 0.155 0.5 MRL ND UG/L 1 <br /> tert-Butyl alcohol (TBA) 8.79 20. MRI, ND UG/L 1 <br /> 1,2-Dirhioroethane 0.081 0.5 MRL ND UG/L 1 <br />' 1,2-Dibromoethane 0.092 0.5 MRL ND UG/L 1 <br /> SURROGATE AND INTERNAL STANDARD RECOVERIES: <br /> Toluene-d8 63-132 SI-SA 107.0° 1 <br /> 1,2-Dichloroethane-d4 59-135 SLSA 99.5% 1 <br /> 1 <br /> 1 <br /> i <br />