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F <br /> Certificate of Analysis No. 9409105-05 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> r <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 /> i � SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/30/94 14:15:Oc <br /> SAMPLE ID: SB6-25 DATE RECEIVED: 09/02/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE ND 1 P µg/Ka <br /> TOLUENE ND 1 P µg/Kc <br /> ETHYLBENZENE ND I P µg/Kc <br /> TOTAL XYLENE 1 1 P µg/KG <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 1 Ag/Ka <br /> surrogate Recovery <br /> 1,4-Difluorobenzene 80 <br /> 4-Bromofluorobenzene 82 <br /> METHOD 8020*** <br /> r Analyzed by: DAO <br /> Date: 09/10/94 <br /> Total Petroleum Hydrocarbons-Diesel ND 1 P mg/kg <br /> Surrogate $ Recovery <br /> n-Pentacosane 111 <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 /> 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 /> �e.9-c1 <br /> SPL, Inc. , - Pro3e t� Manager <br />