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' Castle Analytical Laboratory, Atwater, CA <br /> t <br /> Lab Report No H4041503 Date 04/23/2004 Page 2 <br /> Project Name DARPETRO#8 Analysis Volatile Organic Compounds by GC/MS Fuel <br /> Project No NA Method 8260FA <br /> Prep Meth SW5030B <br /> Field ID MW-11 Lab Samp ID 6864-9W <br /> Descr/Location MW-11 Recd Date 04/16/2004 <br /> Sample Date 04/14/2004 Prep Date 04/21/2004 <br /> Sample Time 1640 Analysis Date 04/21/2004 <br /> Matrix Water QC Batch VWMS-4214 <br /> Basis Not Filtered Notes <br /> iAnalyte Det Limit Rep Limit Note Result Units Pvc Dil <br /> Methyl-tert-butyl ether(MTBE) 0 289 05 MRL ND UGIL 1 <br />' Ethyl tent-butyl ether(ETBE) 0 084 05 MRL ND UG/L 1 <br /> tert-Amyl methyl ether(TAME) 0 067 05 MRL ND UGIL 1 <br /> Di-isopropyl ether(DIPS) 0155 05 MRL ND UG/L 1 <br /> Cert-Butyl alcohol (TBA) 879 20 MRL ND UGIL 1 <br /> 1,2-Dichloroethane 0 081 05 MRL ND UG/L 1 <br /> 1,2-Dibromoethane 0 092 05 MRL ND UGIL. 1 <br /> SURROGATE AND INTERNAL STANDARD RECOVERIES <br /> Toluene-d8 76-129 SLSA 100% 1 <br /> 1,2-Dichloroethane-d4 53-141 SLSA 104% 1 <br /> I <br /> I <br /> I <br /> I <br /> Approved by Date 62,3/o[� <br />