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Certificate of Analysis No. 9406842-07 <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: 1.012 W Yosemite Dr , Manteca MATRIX: WATER <br /> SAMPLED BY: Remedial Engineering DATE SAMPLED: 06/15/94 20 00 00 <br /> SAMPLE ID: MW-7 DATE RECEIVED: 06/17/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 35 1 P pg/L <br /> TOLUENE 290 1 P µg/L <br /> ETHYLBENZENE 48 1 P pg/L <br /> TOTAL XYLENE 250 1 P pg/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 623 FAg/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 97 <br /> 4-Bromofluorobenzene 101 <br /> METHOD 8020*** <br /> Analyzed by- LFD <br /> Date 06/25/94 <br /> Petroleum Hydrocarbons 1 . 3 0 10 P mg/L <br /> Modified 801.5 -- Gasoline <br /> Analyzed by. LFD <br /> Date 06/25/94 <br /> (P) - Practical Quantitation Limit <br /> Notes *Ref Methods for Chemical Analysis of Water and Wastes, 1983 , EPA <br /> **Ret Standard Methods for Examination of Water & Wastewater, 17th ed <br /> r <br /> ***Ref Test Methods for Evaluating Solid Waste, EPA SW846, 3rd Ed <br /> r <br /> r <br /> r <br /> r <br /> r it r <br /> r <br /> QUALITY' ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance <br /> i SPL California License # 1903 <br /> r <br /> t f <br /> I <br /> r <br /> SPL, Inc - Project Manager <br /> I� <br /> �.h <br />