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0 <br /> ZAM Ae <br /> Certificate of Analysis No. 940SB74-28 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller DATE: 09/21/94 <br /> F <br /> PROJECT: Greyhound Bus Lines 08969 PROJECT NO: 725386. 08969 <br /> SITE: Stockton, CA MATRIX: SOIL <br /> SAMPLED BY: Engineering Science, Inc. DATE SAMPLED: 08/30/94 07:42:00 <br /> SAMPLE ID: SB4-5 DATE RECEIVED: 08/31/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> BENZENE LIMIT <br /> 1 1 P µg/Kg <br /> TOLUENE ND 1 P µg/Kg <br /> ETHYLBENZENE ND 1 P <br /> TOTAL XYLENE µg/Kg <br /> 1 1 P µg/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 2 µg/Kg <br /> Surrogate % Recovery <br /> 1,4-Difluorobenzene 80 <br /> 4-Bromof luorobenzene 78 <br /> METHOD 8020*** <br /> Analyzed by: DAO <br /> Date: 09/03/94 <br /> Total Petroleum Hydrocarbons-Diesel 3.2 Z P mg/kg <br /> Surrogate Recovery <br /> n-Pentacosane 96 <br /> Mod. 8015 - Diesel <br /> Analyzed by: SG <br /> Date: 09/07/94 13 :39:00 <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. , - Projeq Manager <br />