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i <br /> I <br /> Castle Analytical Laboratory, Atwater, CA <br /> Lab Report No.: H3062702 Date: 07/10/2003 Page: 4 <br /> Project Name: OLIVAREZ PROPERTY Analysis: Volatile Organic Compounds by GC/MS Fuel <br /> Project No: 2ND QTR Method: 8260FA <br /> Prep Meth: SW5030B <br /> Field ID: MW-2 Lab Samp ID: 5858-3W <br /> Descr/Location: MW-2 Rec'd Date: 06/27/2003 <br /> Sample Date: 06/25/2003 Prep Date: 07/02/2003 <br /> Sample Time: 1220 Analysis Date: 07/02/2003 <br /> Matrix: Water QC Batch: VWMS-7023 <br /> Basis: Not Filtered Notes: OF <br /> Analyte Det Limit Rep Limit Note Result Units Pvc Dil <br /> Methyl-tert-butyl ether(MTBE) 5.78 10. MRL 73. UG/L 20 <br /> Ethyl tert-butyl ether(ETBE) 1.68 10. MRL NO UG/L 20 <br /> tert-Amyl methyl ether(TAME) 1.34 10. MRL NO UG/L 20 <br /> Di-isopropyl ether(DIPS) 3.1 10. MRL NO UG/L 20 <br /> tent-Butyl alcohol (TBA) 175.8 400. MRI_ NO UG/L 20 <br /> 1,2-Dichloroethane 1.62 10. MRL 73 UG/L 20 <br /> 1,2-Dibromoethane 1.84 10. MRL ND UG/L 20 <br /> SURROGATE AND INTERNAL STANDARD RECOVERIES: <br /> Toluene-d8 76-129 SLSA 112% 1 <br /> 1,2-Dichloroethane-d4 53-141 SLSA 81.7% 1 <br /> DF: Reporting limits elevated due to matrix interferences <br /> Approved by: Date: 13 <br />