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. .. ... ... <br /> HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 <br /> n PHONE (713) 660.0901 <br /> ertificate of Analysis No. H9-9801744-04 <br /> BP Oil Company <br /> 295 SW 41st St, Bldg 13 , Ste N P. O. # <br /> Renton, WA 98055 H177183 , COC#086229 <br /> ATTN: Scott Hooton DATE : 01/26/98 <br /> PROJECT: #11195 , 16500 South I-5 PROJECT NO: 10-151-06-002 <br /> SITE: Lathrop MATRIX: WATER <br /> SAMPLED BY: Alisto Engineering DATE SAMPLED: 01/15/98 <br /> SAMPLE ID: S-4 DATE RECEIVED: 01/17/98 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> MTBE 16000 1000 P µg/L <br /> Benzene ND 0 . 5 P µg/L <br /> Toluene ND 1 . 0 P µg/L <br /> Ethylbenzene ND 1 . 0 P µg/L <br /> Total Xylene ND 1 . 0 P µg/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 97 <br /> 4-Bromofluorobenzene 100 <br /> Method 8020A*** <br /> Analyzed by: DN <br /> Date : 01/21/98 <br /> Gasoline Range Organics 17 5 P mg/L <br /> Surrogate % Recovery <br /> 1, 4-Difluorobenzene 70 <br /> 4-Bromofluorobenzene 107 <br /> California LUFT Manual for Gasoline <br /> Analyzed by: DN <br /> Date : 01/21/98 03 : 54 : 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 />