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f <br /> f <br /> Q <br /> Certificate of Analysis No. 9408B76-37 <br /> Engineering science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 _ <br /> ATTN: Martin Miller DATE: 09/21/94 <br /> 5 <br /> PROJECT: Greyhound Bus Lines 08969 PROJECT INTO: 725386.08969 <br /> BITE: Stockton, CA MATRIX: SOIL <br /> SAMPLED BY: Engineering Science, Inc. DATE SAMPLED: 08/30/94 10:04:00 <br /> SAMPLE ID: SB5-5 DATE RECEIVED: 08/31/94 <br /> r <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> BENZENE LIMIT <br /> ND 3 P µg/Kg <br /> TOLUENE ND 1 P µg/Kg <br /> ETHYLBENZENE ND 1 P µg/Kg <br /> TOTAL XYLENE ND 1 P µg/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND µg/Kg <br /> surrogate % Recovery <br /> 1,4-Difluorobenzene 83 <br /> 4-Bromofluorobenzene 111 <br /> METHOD 8020*** <br />- Analyzed by: SLB <br /> Date: 09/08/94 <br /> Total Petroleum Hydrocarbons-Diesel ND 1 P mg/kg <br /> r <br /> surrogate g � Recovery <br /> n-Pentacosane 78 <br /> Mod. 8015 - Diesel <br />` Analyzed by: SEG <br /> Date: 09/10/94 22:44: 00 <br /> ND - Not detected. <br /> (P) - Practical Quantitation Limit <br /> Notes: *Ref: Methods for Chemical Analysis of Water and Wastes, 3983, 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. , - PREPct Manager <br />