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0 <br /> Certificate of Analysis No. H9-9503A37-01 <br /> EZ Serve Inc. <br /> 2550 North Loop West, #600 <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 10:17:00 <br /> SAMPLE ID: 100878-MW-1 DATE RECEIVED: 03/25/95 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 5 0.5 P Ag/L <br /> TOLUENE 1 0.5 P Ag/L <br /> ETHYLBENZENE 42 0.5 P gg/L <br /> TOTAL XYLENE 130 0.5 P µg/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 178 µg/L <br /> Surrogate $ Recovery <br /> 1,4-Difluorobenzene 97 <br /> 4-Bromof luorobenzene 96 <br /> METHOD 8020*** <br /> Analyzed by: DAO <br /> Date: 03/31/95 <br /> Petroleum Hydrocarbons - Gasoline 540 50 P µg/L <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 96 <br /> 4-Bromofluorobenzene 86 <br /> Modified 8015 - Gasoline <br /> Analyzed by: DAO <br /> Date: 03/31/95 <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 /> I , <br /> Il QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance. <br /> SPL California License # 1903 <br /> Ind. , - Project Manager ! <br /> .t <br />