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0 <br /> Certificate of Analysis No. 940OD76-41 <br /> r 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 /> SITE: Stockton, CA MATRIX: SOIL <br /> SAMPLED BY: Engineering Science, Inc. DATE SAMPLED: 08/30/94 10:33:00 <br /> a SAMPLE ID: SB5-25 DATE RECEIVED: 08/31/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br />' BENZENE ND 1 P Mg/Kg <br /> TOLUENE ND 1 P Ag/Kg <br /> ETHYLBENZENE ND 1 P Ag/Kg <br /> TOTAL XYLENE ND 1 P µg/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND µg/Kg <br /> I <br /> Surrogate % Recovery <br /> 1,4-Dif luorobenzene 80 <br /> 4-Bromofluorobenzene 98 <br /> METHOD 8020*** <br /> Analyzed by: SLB <br /> f Date: 09/08/94 <br /> Total Petroleum Hydrocarbons-Diesel ND 1 P mg/kg <br /> Surrogate Recovery <br /> n-Pentacosane 76 <br /> Mod. 8015 - Diesel <br /> r Analyzed by: SEG <br /> Date: 09/10/94 22:44:00 <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 /> 1 ***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 /> r SPL, Inc. , - Prod t Manager <br />