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t <br /> O <br /> ' Certificate of Analysis No. 9409105-17 <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 PROJECT NO: 725386.08969 <br /> SITE: Stockton, California MATRIX: SOIL <br /> SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/31/94 08:57:OC <br /> SAMPLE ID: SB7-40 DATE RECEIVED: 09/02/94 <br /> ANALYTICAL DATA - <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE ND 1 P <br /> TOLUENE ND 1 P µg/Ka <br /> ETHYLBENZENE ND 1 P l+g/Kg <br /> TOTAL XYLENE ND 1 P g/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS NDtg/Kg <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 80 <br /> 4-Bromofluorobenzene 78 <br /> METHOD 8020*** <br /> Analyzed by: MOO <br /> i Date: 09/11/94 <br /> Total Petroleum Hydrocarbons-Diesel 1.4 1 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. , - Projoot Manager <br />