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' Castle Analytical Laboratory, Atwater, CA <br />' Lab Report No H4010717 Date 01/16/2004 Page 1 <br /> Protect Name DARPETRO#8 Analysis Volatile Organic Compounds by GC/MS Fuel <br /> Protect No NA Method 8260FA <br /> Prep Meth SW5030B <br /> Field ID MW-1 Lab Samp ID 6508-1 W <br /> Descr/Location MWA Rec'd Date 01/08/2004 <br /> Sample Date 01/06/2004 Prep Date 01/12/2004 <br /> Sample Time 1705 Analysis Date 01/12/2004 <br /> Matrix Water QC Batch VWMS-1124 <br /> Basis Not Filtered Notes DF <br /> Analyte Det Limit Rep Limit Note Result Units Pvc Dil <br /> Methyl-tert-butyl ether(MTBE) 289 5 MRL 310 UG/L 10 <br /> Ethyl tent-butyl ether(ETRE) 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(DIPS) 155 5 MRL ND UG/L 10 <br /> tert-Butyl alcohol BA 879 200 MRL ND UG/L 10 <br />' SURROGATE AND INTERNAL STANDARD RECOVERIES <br /> Toluene-d8 76-129 SLSA 122% 1 <br /> 1,2-Dichloroethane-d4 53.141 SLSA 791% 1 <br />' DF Reporting limits elevated due to matrix interferences <br /> I <br /> I <br /> Approved by 1"/ Date 1; 1)q <br /> I <br />