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.,, Certificate of Analysis No. 9403B35-03 <br /> E-Z Serve, Inc. <br /> 2550 North Loop West, # 600 <br /> Houston, TX 77292 <br /> ATTN: Brian Cobb DATE: 04/13/94 <br /> PROJECT: EZ-Serve #100966 PROJECT NO: ASA 420-93 <br /> SITE: Stockton, CA MATRIX: WATER <br /> SAMPLED BY: Associated Soils Analysis DATE SAMPLED: 03/30/94 10:45: 00 <br /> SAMPLE ID: MW-3 DATE RECEIVED: 03/31/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE 220 1 P gg/L <br /> TOLUENE ND 1 P jcg/:p <br /> ETHYLBENZENE 13 1 P µg/L <br /> TOTAL XYLENE 6 1 P gg/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 239 µg/L <br /> Surrogate Recovery <br /> 1, 4-Difluorobenzene 107 <br /> 4-Bromofluorobenzene 93 <br /> METHOD 8020*** <br /> Analyzed by: MOO <br /> Date: 04/11/94 <br /> Petroleum Hydrocarbons 0. 83 0. 10 P mg/L <br /> Modified 8015 - Gasoline <br /> Analyzed by: MOO 189D fP-b <br /> Date: 04/11/94 <br /> (P) - Practical Quantitatidn 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 /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance. <br /> SPL California License # 1903 <br /> SPL, Inc. , - Shari L. Grice <br />