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HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> HOUSTON, TEXAS 77054 <br /> ertifi,cate of Analysis No. H9-9910310-02 PHONE(713) 660-0901 <br /> BP Oil Company <br /> 295 SW 41 Street B1dg. 13 , SteN P . O . # <br /> Renton, WA 98055 N/A, COC#118682 <br /> ATTN: Scott Hooton DATE : 10/19/99 <br /> PROJECT: #11192 , 1403 Country Club PROJECT NO: 990726-N2 <br /> SITE: Stockton MATRIX: WATER <br /> SAMPLED BY: Blaine Tech Services DATE SAMPLED: 10/07/99 14 : 40 : 00 <br /> SAMPLE ID: B DATE RECEIVED: 10/09/99 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> MTBE 4200 25 P ug/L <br /> BENZENE ND 1 . 0 P ug/L <br /> TOLUENE ND 1 . 0 P ug/L <br /> ETHYLBENZENE ND 1 . ❑ 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 92 <br /> • 4-Bromofluorobenzene 96 <br /> Method 8020A *** <br /> Analyzed by: WLR <br /> Date : 10/15/99 <br /> Gasoline Range Organics 4 . 9 0 . 050 P mg/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 100 <br /> 4-Bromofluorobenzene 100 <br /> California LUFT Manual for Gasoline <br /> Analyzed by: WLR <br /> Date : 10/14/99 22 : 59 : 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 />