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Excelchem Environmental Labs, Roseville, CA <br /> Lab Report No 0504058 Date 05/1112005 Page 13 <br /> ' Prolect Name CASTLE MOTORS Analysis Volatile Organic Compounds by GC/MS <br /> Prolect No 723 2 Method SW8260B <br /> Prep Meth SW 5030 <br /> ' Field ID MW-5 Lab Samp ID 0504058-05 <br /> Descr/Location MW-5 Rec'd Date 04/14/2005 <br /> Sample, Date 04/13/2005 Prep Date 04119/2005 <br /> ' Sample Time 0910 Analysis Dare 04/19/2005 <br /> Matrix Water QC Batch AOD0058 <br /> Basis Not Filtered Notes <br /> ' Analyte Dat Limit Rep Limit Note Result Units Pvc Dil <br /> Benzene 50 50 PQL 250. UGIL 100 <br /> 1,2-Dibromoethane 50 50 PQL ND UGIL 100 <br /> 1,2-Dichloroethane 50 50 PQL ND UGIL 100 <br /> Ethylbenzene 50 50 PQL 1200. UG/L 100 <br /> Toluene 50 5C PQL 180 UG/L 100 <br /> o-Xylene 50 60 PQL 970 UGIL 100 <br /> Methyl-tert-butyl ether (MTBE) 50 50 PQL- ND UGIL 100 <br /> ' Di-isopropyl ether(DIPE) 50 50 PQL ND UG/L 100 <br /> Ethyl tert-butyl ether (ETRE) 50 50 PQL ND UG/L 100 <br /> Gasoline Range Organics 5000 5000 PQL 23000 UGIL 100 <br /> tert-Amyl methyl ether(TAME) 50 50 PQL ND UG/L 100 <br /> tert-Butyl alcohol (TBA) 500 500 PQL ND UGIL 100 <br /> Xylene, Isomers m & p 1 100 100 PQL 180C UGIL 100 <br /> SURROGATE AND INTERNAL_ STANDARD RECOVERIES <br /> 4-Bromofluorobenzene 70-130 SLSA 98% 100 <br /> Toluene-d8 70-130 SLSA 98% 100 <br /> ' Dibromofluoromethane 70-130_ SLSA 102% 100 <br /> Approved by _ Date <br /> r <br />