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Certificate of Analysis No. 9406842-01 <br /> E-Z Serve, Inc. <br /> 2550 North Loop West, # 600 <br /> Houston, TX 77292 <br /> ATTN Brian Cobb DATE 06/28/94 <br /> PROJECT: E-Z Serve ##100878 PROJECT NO: <br /> SITE: 1012 W Yosemite Dr. , Manteca MATRIX: WATER <br /> SAMPLED BY: Remedial Engineering DATE SAMPLED: 06/15/94 17 50 00 <br /> SAMPLE ID: MW-6 DATE RECEIVED: 06/17/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 96 1 P µg/L <br /> TOLUENE 560 1 P µg/L <br /> ETHYLBENZENE 80 1 P pg/L <br /> TOTAL XYLENE 440 1 P µg/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 1176 µg/L <br /> Surrogate Recovery <br /> 1, 4-Difluorobenzene 99 <br /> 4-Bromofluorobenzene 99 <br /> METHOD 8020*** <br /> Analyzed by LFD <br /> Date 06/26/94 <br /> Petroleum Hydrocarbons 2 . 6 0 10 P mg/L <br /> Modified 8015 - Gasoline <br /> Analyzed by LFD <br /> Date 06/26/94 <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 /> I i <br /> I ' <br /> I E i I f <br /> i <br /> 1 I I <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance <br /> ` SPL California License # 1903, <br /> I <br /> SPL, Inc - Project Manager I <br /> I <br /> li I I Ik I 'kohl i <br /> II 114,1 SII I I k kf� �� kl I� <br />