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HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> HOUSTON, TEXAS 77054 ; <br /> r?ificate of Analysis No. H9-9808718-03 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 08/27/9F <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-10 6-6 . 5 DATE RECEIVED: 08/18/98 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS PQL* UNITS <br /> Benzene ND 5 ug/Kg <br /> Ethylbenzene ND 5 ug/Kg <br /> Toluene ND 5 ug/Kg <br /> Xylenes (total) ND 5 ug/Kg <br /> t Butyl alcohol ND 500 ug/Kg <br /> t-Butyl Ethyl Ether ND 10 ug/Kg <br /> t-Amyl Methyl Ether ND 10 ug/Kg <br /> Diisopropyl ether ND 10 ug/Kg <br /> Methyl t-butyl ether ND 10 ug/Kg <br /> SURROGATES AMOUNT % LOWER UPPER: <br /> SPIKED RECOVERY LIMIT LIMITFtI=-% <br /> 1, 2-Dichloroethane-d4 50 ug/Kg 78 70 120 <br /> Toluene-d8 50 ug/Kg 92 80 140 <br /> 4-Bromofluorobenzene 50 ug/Kg 78 74 130 <br /> ANALYZED BY: HLW DATE/TIME ; 08/19/98 21 : 18 : 00 <br /> METHOD: 8260 Soil, Volatile Organics <br /> NOTES : * - Practical Quantitation Limit ND - Not Detected <br /> NA - Not Analyzed <br /> COMMENTS : <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance . <br /> SPL California License ## 1903 <br /> i <br />