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HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> /A20 ® HOUSTON TEXAS 77054 <br /> PHONE(713)660 0901 <br /> Certificate of Analysis No. H9-9506982 .01. <br /> EZ Serve Inc <br /> 2550 North Loop West, #600 <br /> Houston, TX 77292 <br /> ATTN Brian Cobb DATE 07/10/95 <br /> PROJECT: EZ-Serve #100878 PROJECT NO: 1566-04 <br /> SITE: Manteca, CA MATRIX: WATER <br /> SAMPLED BY: Brown & Caldwell DATE SAMPLED: 06/22/95 08 . 30 00 <br /> SAMPLE ID: 100878 MW-1 DATE RECEIVED: 06/23/95 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 6 0 5 P Ag/L <br /> TOLUENE 1 0 5 P gg/L <br /> ETHYLBENZENE 21 0 5 P µg/L <br /> TOTAL XYLENE 22 0 5 P µg/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 50 Ag/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 97 <br /> 4-Bromofluorobenzene 104 <br /> METHOD 8020*** <br /> Analyzed by. LFD <br /> Date . 07/05/95 <br /> Petroleum Hydrocarbons - Gasoline 170 50 P Ag/L <br /> Surrogate % Recovery <br /> 1, 4-Di.fluorobenzene 96 <br /> 4--Bromofluorobenzene 110 <br /> Modified 8015 - Gasoline <br /> Analyzed by LFD <br /> Date : 07/05/95 <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 /> I' ***Ref . Test Methods for Evaluating Solid Waste, EPA SW846, 3rd Ed. <br /> k <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA gui.delines, for quality assurance k <br /> SPL California Lzcbnse # 1903 <br /> Ik k <br /> SPL, Inc - Proaec Manager <br /> � I <br /> pp i p I <br />