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c <br /> Certificate of Analysis No. 9405336-04 <br /> E-Z Serve, Inc <br /> 2550 North Loop West , # 600 <br /> Houston, TX 77292 <br /> ATTN Brian Cobb DATE 05/16/94 <br /> PROJECT: E-Z Serve ##100878 PROJECT NO: 420-93 <br /> SITE: 1012 W Yosemite Dr , Manteca MATRIX: WATER <br /> SAMPLED BY: Associated Soils Analysis DATE SAMPLED: 05/03/94 10 00 00 <br /> SAMPLE ID: MW-4 DATE RECEIVED: 05/06/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE ND 1 P µg/L <br /> TOLUENE ND 1 P jug/L <br /> ETHYLBENZENE ND 1 P pg/L <br /> TOTAL XYLENE ND 1 P ttg/L <br /> TOTAL BTEX ND Ag/L <br /> Surrogate Recovery <br /> 1, 4-Difluorobenzene 88 <br /> 4-Bromofluorobenzene 77 <br /> METHOD 8020*** <br /> Analyzed by LFD <br /> Date 05/14/94 <br /> Petroleum Hydrocarbons ND 0 10 P mg/L <br /> Modified 8015 - Gasoline <br /> Analyzed by LFD <br /> Date 05/14/94 <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 /> 1 , <br /> 1 I <br /> I <br /> 1 1 <br /> QUALITY ASSURANCE: These analyses are performed Gln accordance f' <br /> k with EPA guidelines for quality assurance <br /> II 1 <br /> r � ( <br /> SPL, Inc - Project Manager <br /> f1 <br /> V, <br />