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7 <br /> Certificate of Analysis No. 9405336-02 <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 09 00 00 <br /> SAMPLE ID: MW-2 DATE RECEIVED: 05/06/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 2 1 P µg/L <br /> TOLUENE ND 1 P ug/L <br /> ETHYLBENZENE 2 1 P ug/L <br /> TOTAL XYLENE ND 1 P ug/L <br /> TOTAL BTEX 4 ug/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 90 <br /> 4-Bromofluorobenzene 81 <br /> METHOD 8020*** <br /> Analyzed by. LFD <br /> Date 05/14/94 <br /> Petroleum Hydrocarbons ND 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 Solid Waste, EPA SW846,, 3rd Ed. <br /> I I <br /> I I i <br /> i Ir I r <br /> r <br /> IQUALITY `ASSURANCE: These analyses are performed �n accordance <br /> I with EPA guidelines for quality assurance . �I <br /> I , I <br /> I I i <br /> SPL, Inc Project Manager <br />