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Ce0rtificate of Analysis No. H9-9503A37-08 <br /> EZ Serve Inc. <br /> 2550 North Loop West, 1600 <br /> Houston, TX 77292 <br /> ATTN: Brian Cobb DATE: 04/04/95 <br /> PROJECT: EZ-Serves #100878 PROJECT NO: 1565-04 <br /> SITE: Manteca, California MATRIX: WATER <br /> SAMPLED BY: Brown & Caldwell DATE SAMPLED: 03/24/95 11:45:00 <br /> SAMPLE ID: 100878-MW-8 DATE RECEIVED: 03/25/95 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE ND 0.5 P µg/L <br /> TOLUENE ND 0.5 P µg/L <br /> ETHYLBENZENE ND 0.5 P Ag/L <br /> TOTAL XYLENE ND 0.5 P µg/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND µg/L <br /> Surrogate % Recovery <br /> 1,4-Difluorobenzene 99 <br /> 4-Bromofluorobenzene 90 <br /> METHOD 8020*** <br /> Analyzed by: DAO <br /> Date: 03/31/95 <br /> Petroleum Hydrocarbons - Gasoline ND 50 P hg/L <br /> Surrogate % Recovery <br /> 1,4-Difluorobenzene 97 <br /> 4-Bromofluorobenzene 100 <br /> Modified 8015 - Gasoline <br /> Analyzed by: DAO <br /> Date: 03/31/95 <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 EPAEguidelines for quality assurance. <br /> II' SPL California License # 1903 <br /> 'E I <br /> � � II ' l <br /> I MI I I i I I I I!,III III I, <br /> SPL, Inc'. , - Project Manager <br /> I F I I SIE li I'I,I` 'I '� it i I I Gill!l `IIIA' <br />