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HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> ® HOUSTON,TEXAS 77054 <br /> Certificate of Analysis No. H9-9903B99-09 PHONE(713)660.0901 <br /> BP Oil Company <br /> 295 SW 41 Street B1dg. 13 , SteN P .O.## <br /> Renton, WA 98055 NA , COC##118682 <br /> ATTN: Scott Hooton DATE : 04/07/99 <br /> PROJECT: #11195 , 16500 I-5 PROJECT NO: 990322R-2 <br /> SITE: Lathrop MATRIX: WATER <br /> SAMPLED BY: Blaine Tech Services DATE SAMPLED: 03/22/99 18 : 10 : 00 <br /> SAMPLE ID: I DATE RECEIVED: 03/27/99 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> MTBE 12000 25 P ug/L <br /> BENZENE ND 1 . 0 P ug/L <br /> TOLUENE ND 1 . 0 P ug/L <br /> ETHYLBENZENE ND 1 . 0 P ug/L <br /> TOTAL XYLENE ND 1 . 0 P ug/L <br /> TOTAL VOLATILE AROMATIC HYDROCARBONS ND ug/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 113 <br /> 4-Bromofluorobenzene 100 <br /> Method 8020A *** <br /> Analyzed by: LJ <br /> r.- Date : 03/30/99 <br /> Gasoline Range Organics 12 1. . 25 P mg/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 88 <br /> 4-Bromofluorobenzene 96 <br /> California LUFT Manual for Gasoline <br /> Analyzed by: LJ ` <br /> Date : 03/30/99 16 : 18 : 00 <br /> (P) - Practical Quantitation Limit ND - Not detected. <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 /> QUALITY ASSURANCE : 'these analyses are performed in accordance <br /> with EPA guidelines for quality assurance . <br /> SPL California License ## 1903 <br />