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Certificate of Analysis No. 9406842-02 <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 18 12 : 00 <br /> SAMPLE ID: MW-4 DATE RECEIVED: 06/17/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 99 5 P lig/L <br /> TOLUENE 700 5 P ug/L <br /> ETHYLBENZENE 91 5 P µJ/L <br /> TOTAL XYLENE 530 5 P lig/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 1420 jug/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 103 <br /> 4-Bromofluorobenzene 106 <br /> METHOD 8020*** <br /> Analyzed by LFD <br /> Date 06/27/94 <br /> Petroleum Hydrocarbons 3 . 1 0 5 P mg/L <br /> Modified 8015 - Gasoline <br /> Analyzed by LFD <br /> Date 06/27/94 <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 /> E <br /> 16UALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance <br /> SPL California License # 1903 <br /> r <br /> SPL, Inc , - Project Manager <br />