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4 <br /> { o <br /> Certificate of Analysis No. 9409105-02 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller DATE: 09/26/92 <br /> PROJECT: Greyhound #8969 <br /> PROJECT NO: 725386.08969 <br /> SITE: Stockton, California MATRIX: SOIL <br /> +, SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/30/94 13:51:OC <br /> SAMPLE ID: SB6-10 DATE RECEIVED: 09/02/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> i BENZENE LIMIT <br /> TOLUENE ND 1 P µg/Kg ETHYLBENZENE ND 1 p Ag/Kg <br /> ND 1 P µg/Kg <br /> TOTAL XYLENE ND 1 P µg/Kg <br /> ! <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND µg/Kg <br /> Surrogate $ Recovery <br /> lip1,4-Difluorobenzene 80 <br /> 4-Bromofluorobenzene 81 <br /> METHOD 8020*** <br /> r Analyzed by: DAO <br /> Date: 09/09/94 <br /> Total Petroleum Hydrocarbons-Diesel ND 1 P mg/kg <br /> Surrogate $ Recovery <br /> n-Pentacosane $8 <br /> Mod. 8015 - Diesel <br /> Analyzed by: SEG <br /> Date: 09/13/94 17:59:00 <br /> ND - Not detected. (P) - Practical Quantitation Limit <br /> t ; Nates: *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 /> t with EPA guidelines for quality assurance. <br /> SPL California License # 1903 <br /> SPL, Inc. , - Proj&6t Manager <br />