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Castle Analytical Laboratory,Atwater, CA <br /> Lab Report No.: H4112906 Date: 12/06/2004 Page: 3 <br /> Project Name: FORMER ARCO AM/PM Analysis: Volatile Organic Compounds by GC/MS Fuel <br /> LProject No: 750.2 Method: 8260FA <br /> Prep Meth: SW5030B <br /> Lf=ield ID: MW-2 Lab Samp ID: 7581-2W <br /> Descr/Location: MW-2 Recd Date: 11/29/2004 <br /> Sample Date: 11126/21104 Prep Date: 11/30/2004 <br /> Sample Time: 1530 Analysis Date: 11/30/2004 <br /> Matrix: Water QC Batch: VWMS-N304 <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 /> L (Ethyl tertmbutyl ether(ETBE) 0.084 0.5 MRL ND UG/L 1 <br /> tert-Amyl methyl ether(TAME) 0.067 0.5 MRL ND UG/L 1 <br /> Di-isopropyl ether(DIPE) 0.155 0.5 MRL ND UG/L 1 <br /> tert-Butyl alcohol (TBA) 8.79 20. MRL ND UG/L 1 <br /> SURROGATE AND INTERNAL STANDARD RECOVERIES: <br /> Toluene-d8 63-132 SLSA 96.5% 1 <br /> 1,2-Dichloroethane-d4 59-135 SLSA 99.8% 1 <br /> L <br /> L <br /> L <br /> L , <br /> C <br /> Date: <br /> Approved by: " �l�f t <br />