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O <br /> ZMA 04w'"r <br /> Certificate of Analysis No. 940BB76-30 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ' ATTN: Martin Miller <br /> DATE: 09/21/94 _ <br /> PROJECT: Greyhound Bus Lines 08969 PROJECT NO: 725386.08969 <br /> SITE: Stockton, CA MATRIX: SOIL <br /> BALLED BY: Engineering Science, Inc. DATE SAMPLED: 08/30/94 07:56:00 <br /> SAMPLE ID: SB4-15 DATE RECEIVED: 08/31/94 <br /> r� <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> BENZENE LIMIT <br /> TOLUENE ND 1 P µg/Kg <br /> ND 1 P µg/Kg <br /> ETHYLBENZENE <br /> TOTAL XYLENE ND 1 P µq/Kq1 1 P µq/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 1 µg/Kg <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 84 <br /> 4-Bromofluorobenzene 112 <br /> METHOD 8020*** <br /> Analyzed by: sLB <br /> Date: 09/07/94 <br /> Total Petroleum Hydrocarbons-Diesel 1.7 1 P mg/kg <br /> Surrogate Recovery <br /> n-Pentacosane 74 <br /> Mod. 8015 - Diesel <br /> l Analyzed by: SEG <br /> Date: 09/09/94 15:52:00 <br /> ND - Not detected. (P) - Practical Quantitation Limit <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 License1903 <br /> SPL, Inc. , - Pr ect Manager <br />