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i O <br /> Certificate of Analysis No. 9409105-23 <br /> Engineering science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller DATE: 09/26/94- <br /> PROJECT: Greyhound #8969 PROJECT NO: 725386.08969 <br /> BITE: Stockton, California MATRIX: SOIL <br /> SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/31/94 10:30:00 <br /> SAMPLE ID: SB8-30 DATE RECEIVED: 09/02/94 <br /> ' <br /> PARAMETER ANALYTICAL DATA <br /> RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 2 1 P µg/Kg <br /> TOLUENE ND 1 P Ag/Kg <br /> ETHYLBENZENE 6 1 P µg/Kg <br /> TOTAL XYLENE 37 1 P µg/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 45 gg/Kg <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 79 <br /> 4-Bromofluorobenzene 106 <br /> METHOD 8020*** <br /> Analyzed by: MOO <br /> Date: 09/11/94 <br /> Total Petroleum Hydrocarbons-Diesel 160 1 P mg/kg <br /> Surrogate % Recovery <br /> n-Pentacosane 201 <br /> Mod. 8015 - Diesel <br /> Analyzed by: SEG <br /> Date: 09/14/94 20:13 :00 <br /> (P) - Practical Quantitation Limit ND - Not detected. <br /> Recovery beyond control limits. <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 /> t .c <br /> SPL, Inc. , - Project ager <br />