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I O <br /> Certificate of Analysis No. H9-9503A37-05 <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-Servw #100878 PROJECT NO: 1565-04 <br /> SITE: Manteca, California MATRIX: WATER <br /> SAMPLED BY: Brown & Caldwell DATE SAMPLED: 03/24/95 13: 13:00 <br /> SAMPLE ID: 100878-MW-5 DATE RECEIVED: 03/25/95 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 330 0.5 P µg/L <br /> TOLUENE 18 0.5 P µg/L <br /> ETHYLBENZENE 660 0.5 P µg/L <br /> TOTAL XYLENE 2500 0.5 P Ag/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 3508 µg/L <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 110 <br /> 4-Bromofluorobenzene CI <br /> METHOD 8020*** <br /> Analyzed by: DAO <br /> Date: 03/31/95 <br /> Petroleum Hydrocarbons - Gasoline 10000 50 P mg/L <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 63 <br /> 4-Bromofluorobenzene 64 <br /> Modified 8 015 - Gasoline <br /> Analyzed by: DAO <br /> Date: 03/31/95 <br /> (P) - Practical Quantitation Limit CI - Coeluting interference, <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 /> I , <br /> QUALITY ASSURANCE: These analyses are performed in accordance II <br /> t with EPA guidelines for quality assurance. <br /> SPL California License 1903 ` <br /> li ' II <br /> I <br /> If I• I i , V li � i j II I I I li I 11111 � � II <br /> I <br /> PL, Inc. , - Project Manager it <br /> 0 <br />