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7coortificate <br /> of Analysis No. 89-9501235-05 <br /> EZ Serve Inc. <br /> 2550 North Loop West, #600 <br /> Houston, TX 77292 <br /> ATTN: Brian Cobb DATE: 01/18/95 <br /> PROJECTS EZ Serve - Stockton PROJECT NO: 1567 <br /> SITE: Stockton, CA MATRIX: SOIL <br /> SAMPLED BY: Brown 6 Caldwell DATE SAMPLED: 12/30/94 <br /> SAMPLE ID: AS1-70' DATE RECEIVED! 01/09/95 <br /> ANALYTICAL DATA <br /> PARAMETER ' RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 130 1 P µg/Kg <br /> TOLUENE 7 1 P µq/Kg <br /> ETHYLBENZENE 2 1 P µq/Kg <br />' TOTAL XYLENE 12 1 P µg/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 151 14g/Kg <br /> Surrogate % Recovery <br /> 1,4-Difluorobenzene 105 <br /> 4-Bromofluorobenzene 103 <br /> METHOD 8020*** <br /> Analyzed by: LFD <br /> Date: 01/10/95 <br />' Petroleum Hydrocarbons - Gasoline 0.35 0. 1 P mg/Kg <br /> Surrogate % Recovery <br /> 1, 4-Difiuorobenzene 101 <br /> 4-Bromofluorobenzene 110 <br /> Modified 8015 - Gasoline <br /> Analyzed by: LFD <br /> Date: 01/10/95 <br /> (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 1 1903 <br /> SPL, Inc. , - Project Manager <br />