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1 <br /> i <br /> W <br /> O <br /> Certificate of Analysis No. 940910516 <br /> Engineering Science, Inc. <br /> 290 Elwood Davis Rd <br /> Liverpool, NY 13088 <br /> ATTN: Martin Miller DATE: 09/26/9, <br /> PROJECT: Greyhound 18969 <br /> Y PROJECT NOS 725386.08969 <br /> SITE: Stockton, California XATRIB: SOIL <br /> SAMPLED BY: Engineering Sciences DATE SAMPLED: 08/31/94 08:24:0( <br /> SAMPLE ID: SB7-35 DATE RECEIVED: 09/02/94 <br /> � ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITE <br /> BENZENE LIMIT <br /> ND 1 P Ag/Ka <br /> TOLUENE ND 1 P Ag/KC <br /> ETHYLBENZENE ND 1 P µg/KC <br /> TOTAL XYLENE 4 1 P µg/Kc <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS 4 <br /> µg/Ke <br /> Surrogate Recovery <br /> 1,4-Difluorobenzene 80 <br /> 4-Bromofluorobenzene 79 <br /> METHOD 8020*** <br /> Analyzed by: MOO <br /> {� Date: 09/11/94 <br /> Total Petroleum Hydrocarbons-Diesel 1.2 1 P mg/kg <br /> Surrogate Recovery <br /> n-Pentacosane 98 <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 <br /> Y Wastes, 1983, EPA <br /> **Ref: Standard Methods for Examination of Water & Wastewater, 17th ed. <br /> r� ***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 t Manager <br />