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�1 y <br /> Castle Analytical Laboratory,Atwater, CA <br /> Lab Report No.: H3092818 Date: 10/07/2003 Page: 10 <br /> Project Name: OLIVAREZ PROPERTY Analysis: Volatile Organic Compounds by GC/MS Fuel <br /> Project No: NA Method: 8260FA <br /> Prep Meth: SW5030B <br /> Field ID: MW-9 Lab Samp ID: 6164-9W <br /> Descr/Location: MW-9 Recd Date: 09/29/2003 <br /> Sample Date: 09/25/2003 Prep Date: 10/04/2003 <br /> Sample Time: 1400 Analysis Date: 10/04/2003 <br /> Matrix: Water QC Batch: VWMS-0043 <br /> Basis: Not Filtered Notes: <br /> Analyte Det Limit Rep Limit Note Result Units Pvc Dil <br /> Methyl-tert-butyl ether(MTBE) 0.289 0.5 MRL NO UG/L 1 <br /> Ethyl tert-butyl ether(ETBE) 0.084 0.5 MRL ND UG/L 1 <br /> tert-Amyl methyl ether(TAME) 0.067 0.5 MRL NO UGIL 1 <br /> Di-isopropyl ether(DIPS) 0.155 0.5 MRL NO UG/L 1 <br /> tert-Butyl alcohol (TBA) 8.79 20. MRL NO UG/L 1 <br /> 1,2-Dichloroethane 0.081 0.5 MRL NO UG/L 1 <br /> 1,2-Dibromoethane 0.092 0.5 MRL I NO UGIL 1 <br /> SURROGATE AND INTERNAL STANDARD RECOVERIES: <br /> Toluene-d8 76-129 SLSA 95.1% 1 <br /> 1,2-Dirhioroethane-d4 53-141 SLSA 97.9% 1 <br /> Approved by: Date: !6 <br /> .. _.. Lam,_. <br />