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i <br /> HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> Q HOUSTON,TEXAS 770 <br /> ertificate of Analysis No. H9-9809326-10 PHONE {713 660-0901./'rh <br /> BP Oil Company <br /> 295 SW 41st St, Bldg 13 , Ste N P.O.# <br /> Renton, WA 98055 H405058, COC#095813 <br /> ATTN: Scott Hooton DATE: 09/17/9 <br /> PROJECT: #11195, PROJECT NO: 10-151-9-3 <br /> SITE: Lathrop, CA MATRIX: WATER <br /> SAMPLED BY: Alisto Engineering DATE SAMPLED: 09/03/98 <br /> SAMPLE ID: S-10 DATE RECEIVED: 09/09/98 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> MTBE 78000 2500 P ug/ <br /> Benzene ND 2 . 5 P ug/L <br /> Toluene ND 5. 0 P ug/T <br /> Ethylbenzene 360 5 . 0 P ug/: <br /> Total Xylene 100 5. 0 P ug/L <br /> Surrogate Recovery <br /> 1, 4-Difluorobenzene 99 <br /> 4-Bromofluorobenzene 87 <br /> Method 8020A*** :•. <br /> Analyzed by: YN <br /> gDate: 09/16/98 <br /> Gasoline Range Organics 81 5 P mg/- <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 83 <br /> 4-Bromofluorobenzene 87 <br /> California LUFT Manual for Gasoline <br /> Analyzed by: YN <br /> Date: 09/15/98 04: 37 : 00 <br /> (P) - Practical Quantitation Limit ND - Not detected. <br /> i <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 /> i <br /> I <br /> t <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> With EPA guidelines for quality assurance. i <br /> SPL California License # 1903 <br />