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C� -- - - ----- ---------- <br /> { <br /> t <br /> 1 <br /> Certificate of Analysis No. 9409105-15 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller DATE: 09/26/94 <br /> PROJECT: Greyhound 08969 PROJECT No: 725386.08969 <br /> SITE: Stockton, California XATRIX: SOIL <br /> SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/31/94 08:16:00 <br /> SAMPLE ID: SB7-30 DATE RECEIVED: 09/02/94 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> BENZENE ND 1 P Ag/Kg <br /> TOLUENE ND 1 P Ag/Kg <br /> ETHYLBENZENE ND I P Ag/Kg <br /> TOTAL XYLENE 4 1 P Ag/Kg <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 4 Ag/Kg <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 79 <br /> 4--Bromofluorobenzene 78 <br /> METHOD 8020*** <br />{ Analyzed by: JZL <br /> Date: 09/10/94 <br /> t <br /> Total Petroleum Hydrocarbons-Diesel 54 1 P mg/kg <br /> Surrogate g � Recovery <br /> n-Pentacosane 143 <br /> Mod. 8015 - Diesel <br /> Analyzed by: SEG <br /> Date: 09/14/94 20:13:00 <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 /> SPL, Inc. , - Prod dt Manager <br />