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Castle Analytical Laboratory, Atwater, CA <br /> 1 Lab Report No H4062109 Date 06/30/2004 Page 1 <br />' Project Name FRONTIER TRUCKING Analysis Volatile Organic Compounds by GC/MS Fuel <br /> Project No NA Method 8260FA <br /> Prep Meth SW5030B <br />' Field ID MW-1 Lab Samp ID 7085-1W <br /> Descr/Location MW-1 Recd Date 06/27/2004 <br />' Sample Date 06/18/2004 Prep Date 06/27/2004 <br /> Sample Time 1928 Analysis Date 06/27/2004 <br /> Matrix Water QC Batch VWMS-6274 <br />' Basis Not Filtered Notes DF <br /> Analyte Det Limit Rep Limit Note Result Units Pvc Dii <br />' Methyl-tent-butyl ether(MTBE) 289 50 MRL 1200 UG/L. 100 <br /> Ethyl tert-butyl ether(ETBE) 0 840 5 MRL ND UG/L. 10 <br /> tert-Amyl methyl ether(TAME) 0 670 5 MRL ND UG/L. 10 <br /> Di-isopropyl ether(DIPE) 155 5 MRL ND UG/L. 10 <br />' tert-Butyl alcohol (TBA) 879 200 MRL ND UG/L. 10 <br /> 1,2-Dichloroethane 0810 5 MRL ND UG/L. 10 <br /> 1,2-Dibromoethane 0920 5 MRL ND UG/L 10 <br />' SURROGATE AND INTERNAL STANDARD RECOVERIES <br /> Toluene-d8 63-132 SLSA 101% 1 <br /> 1,2-Dichloroethane-d4 59-135 SLSA 969% 1 <br />' + DF Reporting limits elevated due to matrix interferences <br /> 1 <br /> I <br /> 1 <br /> I <br /> 1 <br /> i� <br /> Approved by `1,f� Date �,1� L <br />