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Certificate of Analysis No. 9312255-03 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller DATE: 12/16/93 <br /> PROJECT: Greyhound Lines, Inc. _ PROJECT -NO: , 54360. 22 <br /> SITE: Stockton, California MATRIX: LIQUID <br /> SAMPLED BY: Engineering Science DATE SAMPLED: 12/07/93 12 : 10: 00 <br /> SAMPLE ID: MW-003 DATE RECEIVED: 12/08/93 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE ND 0. 3 P ug/L <br /> TOLUENE ND 0. 3 P ug/L = <br /> ETHYLBENZENE ND 0. 3 P ug/L <br /> TOTAL XYLENE ND 0 . 6 P u9IL <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND ug/L <br /> Surrogate % Recovery <br /> 4-Bromofluorobenzene 100 <br /> METHOD 602 * <br /> . Analyzed by: JZL <br /> Date: 12/10/93 <br /> Petroleum Hydrocarbons-Diesel ND 0 . 50 mg/L <br /> Mod. Calfornia DHS <br /> Analyzed by: SG <br /> Date: 12/1.3/93 08 : 50: 01 <br /> ND - Not detected. (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 /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance. <br /> SPL California License # 1903 <br /> SP nc. , - Shari L. Gr e <br />