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Certificate of Analysis No. 9405336-05 <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 30 00 <br /> SAMPLE ID: MW--5 DATE RECEIVED: 05/06/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 140 1 P pg/L, <br /> TOLUENE ND 1 P µg/L <br /> ETHYLBENZENE ND 1 P µg/L <br /> TOTAL XYLENE 122 1 P µg/L <br /> TOTAL BTEX 262 u9/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 104 <br /> 4-Bromofluorobenzene 72 <br /> METHOD 8020*** <br /> Analyzed by LFD <br /> Date 05/14/94 <br /> Petroleum Hydrocarbons 1 1 0 10 P mg/L <br /> Modified 8015 - Gasoline <br /> Analyzed by LFD <br /> Date 05/14/94 <br /> (P) - Practical Quantitation Limit ND - Not detected <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 SolidlWaste, EPA SW846 , 3rd 'Ed <br /> I <br /> I I <br /> 1 <br /> i' <br /> f 1 I <br /> II I <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance III <br /> E ' 1 <br /> I <br /> I�II I <br /> SPL, Inc - Project Manager <br />