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0 <br /> Certificate of Analysis No. E9-9503A37-11 <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-Servw x`100878 PROJECT NO: 1565-04 <br /> SITE: Manteca, California MATRIX: WATER <br /> SAMPLED BY: Provided by SPL DATE SAMPLED: 03/24/95 <br /> SAMPLE ID: Trip Blank DATE RECEIVED: 03/25/95 <br /> I <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 µg/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 95 <br /> METHOD 8020*** <br /> Analyzed by: DAO <br /> Date: 03/30/95 <br /> Petroleum Hydrocarbons - Gasoline ND 50 P pg/L <br /> Surrogate % Recovery <br /> 1,4-Difluorobenzene 96 <br /> 4-Bromofluorobenzene 102 <br /> Modified 8015 - Gasoline <br /> Analyzed by: DAO <br /> Date: 03/30/95 <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 /> I ' I <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance. R <br /> SPL Calif,orriia Licenser # 1903 <br /> I II` <br /> irl � I fl r � I � I r I i i I I 11 EI 41 I <br /> SPL, Inc. Project Manager I <br /> , �� <br /> I 141 I. I <br />