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7Csertificate of Analysis No. H9-9501235-04 <br /> EZ Serve Inc. <br /> 2550 North Loop West, 1600 <br /> Houston, TX 77292 <br /> ATTN: Brian Cobb DATE: 01/18/95 <br /> PROJECT: EZ Serve - Stockton PROJECT NO: 1567 <br />' SITE: Stockton, CA MATRIX: SOIL <br /> SAMPLED BY: Brown & Caldwell DATE SAMPLED: 12/30/94 <br /> SAMPLEIID: AS1-551 DATE RECEIVED: 01/09/95 <br />' ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 430 125 P Ag/Kg <br /> TOLUENE 2400 125 P µg/Kg <br /> ETHYLBENZENE 230 125 P µg/Kg <br /> TOTAL XYLENE 6100 125 P Ag/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 9160 Ag/Kg <br />' Surrogate % Recovery <br /> 1,4-Difluorobenzene 89 <br /> 4-Bromofluorobenzene 98 <br /> METHOD 8020*** <br /> Analyzed by: LFD <br /> Date: 01/10/95 <br />' Petroleum Hydrocarbons - Gasoline 130 12 .5 P mg/Kg <br /> Surrogate % Recovery <br />' 1,4-Difluorobenzene 100 <br /> 4-Bromofluorobenzene 118 <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 # 1903 <br /> SPL, Inc. , - Project Manager <br />