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f s � <br /> Certificate of Analysis No. 9409105-20 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller - DATE: 09/26/9, <br /> PROJECT: Greyhound , 8969 PROJECT NO: 725386.08969 <br /> SITE: Stockton, California MATRIX: SOIL <br /> ' SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/31/94 10: 15:0[ <br /> SAMPLE ID: SBS-15 DATE RECEIVED: 09/02/94 <br /> ,} ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITE <br /> LIMIT <br /> BENZENE ND 1 P µg/Ka <br /> f TOLUENE ND 1 P µg/Kc <br /> ETHYLBENZENE ND 1 P pg/Kc <br /> TOTAL XYLENE 1 1 P Ag/KG <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 1 µg/Ka <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 78 <br /> 4-Bromofluorobenzene 77 <br />' METHOD 8020*** <br /> Analyzed by: MOO <br /> ' Date: 09/11/94 <br /> Total Petroleum Hydrocarbons-Diesel ND 1 P mg/kg <br /> 'M surrogate Recovery <br /> n-Pentacosane 99 <br /> Mad. 8015 - Diesel <br /> ' Analyzed by: SEG <br /> Date: 09/14/94 20:13: 00 <br /> ND - Not detected. (P) - Practical Quantitation Limit <br /> '1 <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 /> i <br /> SPL, Inc. , - Project ager <br />