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Castle Analytical Laboratory, Atwater, CA <br /> Lab Report No h3100901 Date 10120120'03 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-11 Lab Samp ID 6206-1W <br /> Descr/Location MW-1 Reed Date 10/09/2003 <br /> Sample Date 10/08/2003 Prep Date 10/15/2003 <br /> Sample Time 1445 Analysis Date 10/15/2003 <br /> Matrix Water QC Batch VWMS-0153 <br /> Basis Not Filtered Notes SH <br /> Analyte Det Limit Rep Limit Note Result Units Pvc Dil <br /> Methyl-ter#-butyl ether(MTBE) 145 2.5 MRL 164 UG/L 5 <br /> I Ethyl tent-butyl ether(ETRE) 0420 25 MRL ND UG/L 5 <br /> ter!-Amyl methyl ether(TAME) 0 335 2.5 MRL ND UG/L 5 <br /> DE-isopropyl ether(DIPS) 0 775 25 MRL ND UG/L 5 <br /> tent-Butyl alcohol (TBA) 440 100 MRL ND UG/L 5 <br /> 1,2-Drchloroethane 0405 25 MRL fil UG/L 5 <br /> 1,2-Dibromoethane 046 2.5 MRL ND UG/L 5 <br /> SURROGATE AND INTERNAL STANDARD RECOVERIES <br /> Toluene-d8 76.129 SLSA 880% 1 <br /> 1,2-Dichloroethane-d4 53-141 SLSA 107% 1 <br /> BH Reporting limits raised due to high level of non-target analytes <br /> r <br /> i <br /> i <br /> r <br /> i <br /> • <br /> i <br /> Approved by _1" / _ _ Date U� �0-2 <br />