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j <br /> I � <br /> Certificate of Analysis No. 940OB74--21 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ' ATTN: Martin Miller DATE: 09/21/94 <br /> PROJECT: Greyhound Bus Lines #8969 PROJECT NO: 725386.08969 <br /> ' <br /> SITE: Stockton, CA MATRIX: SOIL <br /> SAMPLED BY: Engineering Science, Inc. DATE SAMPLED: 08/29/94 14:45:00 <br /> SAMPLE ID: SB3-15 DATE RECEIVED: 08/31/94 <br /> ' ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 1 1 P gg/Kg <br /> TOLUENE ND 1 P µg/Kg <br /> ETHYLBENZENE ND 1 P µg/Kg <br /> t, TOTAL XYLENE 1 1 P Ag/Kgs <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 2 gg/Kg <br /> Surrogate Recovery <br />' 1,4-Dif luorobenzene 79 <br /> 4-Bromofluorobenzene 84 <br /> METHOD 8020*** <br /> ' Analyzed by: DAO <br /> Date: 09/02/94 <br /> Total Petroleum Hydrocarbons-Diesel 1.7 1 P mg/kg <br /> ' Surrogate Recovery <br /> n-Pentacosane 117 <br /> ' Mod. 8015 - Diesel <br /> Analyzed by: SEG <br /> Date: 09/09/94 15:52 :00 <br /> ' (P) - Practical Quantitation Limit ND - Not detected. <br /> Notes: *Ref: Methods for Chemical Analysis of Water and Wastes, 1983, EPA <br /> **Ref: Standard Methods for Examination of Water & Wastewater, 17th ed. <br /> ***Ref: Test Methods for Evaluating Solid Waste, EPA SW846, 3rd Ed. <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance. <br /> SPL California License 1903 <br />'� SPL, Inc. , - Prod t Manager <br />