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Client Number. 020106308 <br /> Facility Number. 548 <br /> Arco Representative: Kyle Chrlado <br /> Ole, Project 1D: SCoekton,1812 Hammer <br /> Work Order Number. C44340158 <br /> ANALYTICAL RESULTS <br /> Aromatic Volatile Organics and <br /> Total Petroleum Hydrocarbons as Gasoline in Water <br /> EPA Methods 5030, 8020, and Modified 8015a <br /> GTEL Sample Number 01 02 03 04b <br /> Client Identification MW-6,39' MW-4-41' MW-2-40' MW-3-40' <br /> Date Sampled 04/08/94 04/08/94 04/08/94 04/08/94 <br /> Date Analyzed 04/13/94 04/15/94 04/12/94 04/13/94 <br /> Detection <br /> Analyte Limit, ug/L Concentration, ug/L <br /> Benzene 0.3 4.8 1.2 <1.5 27 <br /> Toluene 0.3 3.9 2.0 <1.5 16 <br />• • Ethylbenzene 0.3 0.5 0.5 <1.5 2.5 <br /> Xylene,total 0.5 2.2 2.6 <2.5 17 <br /> 7PH as Gasoline 10 28 26 <50 330 <br /> Detection Limit Multiplier 1 1 5 E95. <br /> BFB surr ate, % recove 95.9 90.1 98.0 <br /> a. Test Methods for Evaluating Solid Waste,SW-846,Third Edition,faevision 0,US EPA November 1986. Modification for TPH as <br /> gasoline as per California State Water Resources Control Board LUFT Manual protocols,May 1988 revision. Bromofluoroben- <br /> zene surrogate recovery acceptability limits are 70-130%. <br /> b. Uncategorized compound is not included in gasoline concentration. <br />• <br />• <br /> GTEL Concord,CA Page 2 <br /> C4040f 58.DOC <br /> MIN V I R 0 N M F N T A L <br />. LABORATORIES. INC <br />