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i <br /> { <br /> ► p <br /> Certificate of Analysis No. 9409105-21 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN-.'- Martin Millerr DATE: 09/26/94 <br /> PROJECT: Greyhound 18969 PROJECT NO: 725386. 08969 <br /> SITE: Stockton, California MATRIX: SOIL <br /> SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/31/94 10:19:00 <br /> SAMPLE ID: SB8-20 DATE RECEIVED: 09/02/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION DNITS <br /> BENZENE LIMIT <br /> ND 1 P Ag/Kg <br /> TOLUENE ND 1 p �yq/Kg <br /> ETHYLBENZENE <br /> TOTAL XYLENE ND 1 P ug/KgND 1 P Ag/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND <br /> µg/K9 <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene go <br /> 4-Bromofluorobenzene 79 <br /> METHOD 8020*** <br /> Analyzed by: MOO <br /> Date: 09/11/94 <br /> Total Petroleum Hydrocarbons-Diesel ND Z P mg/kg <br /> ' Surrogate $ Recovery <br /> n-Pentacosane 100 <br /> Mod. 8015 - Diesel <br /> ' Analyzed by: SEG <br /> Date: 09/14/94 20: 13:00 <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 License # 1903 <br />' SPL, Inc. , - Project ager <br />