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0 <br /> Certificate of Analysis No. 9509105-25 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller - - 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 11:00.00 <br /> I� SAMPLE ID: SB8-40 DATE RECEIVED: 09/02/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> BENZENE LIMIT <br /> TOLUENE <br /> ND 1 P pg/Kg ETHYLBENZENE ND 1 P Ag/Kg <br /> ND 1 P g/Kg <br /> TOTAL XYLENE ND I P µg/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND µg/Kg <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 79 <br /> 4-Bromofluorobenzene 78 <br /> METHOD 8020*** <br /> Analyzed by: MOO <br /> Date: 09/12/94 <br /> Total Petroleum Hydrocarbons-Diesel ND 1 P mg/kg <br /> Surrogate Recovery <br /> n-Pentacosane 99 <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 /> rNotes: *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 M ger <br />