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HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 <br /> rEQificate -of -Analysis -No. H9='9808718-06 PHONE (713)660.0901 <br /> - BP Oil Company <br /> 295 SW 41st St, Bldg 13, Ste N P.O. # <br /> Renton, WA 98055 H405058, COC#095865 <br /> ATTN: Scott Hooton DATE : 08/27/98 <br /> PROJECT: ##11195, 16500 S. I-5 PROJECT NO: 10-151-9-2 <br /> SITE: Lathrop, CA MATRIX: SOIL <br /> SAMPLED BY: Alisto Engineering DATE SAMPLED: 08/12/98 <br /> SAMPLE ID: MW-12 4-4 . 5 DATE RECEIVED: 08/18/98 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> MTBE ND 100 P ug/kg <br /> Benzene 3 .4 1 . 0 P ug/kg <br /> Toluene 5 . 5 2 . 0 P ug/kg <br /> Ethylbenzene 8 . 0 2 . 0 P ug/kg <br /> Total Xylene 74 2 . 0 P ug/kg <br /> Surrogate Recovery <br /> 1, 4-Difluorobenzene 103 <br /> 4-Bromofluorobenzene 83 <br /> Method 8020A*** <br /> Analyzed by: Ci <br /> Date : 08/22/98 <br /> Gasoline Range Organics 1 . 5 0 . 05 P mg/kg <br /> Surrogate % Recovery <br /> 1 , 4-Difluorobenzene 93 <br /> 4-Bromofluorobenzene 80 <br /> California LUFT Manual for Gasoline <br /> Analyzed by: CJ <br /> Date : 08/22/98 09 :47 : 00 <br /> Solids 88 1 % wt <br /> CLP Inorganics SOW <br /> Analyzed by: TK <br /> Date : 08/24/98 11 :45 : 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, 18th ed. <br /> ***Ref : Test Methods for Evaluating Solid Waste, EPA SW846, 3rd Ed. <br /> rte, <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance . <br /> SPL California License ## 1903 <br />