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1 <br /> t" <br /> i <br /> HOUSTON LABORATORY <br /> 88130 INTERCHANGE DRIVE <br /> O HOUSTON,TEXAS 77054 <br /> PHONE(713)6601901 <br /> Certificate of Analysis No. H9-9710855-01 <br /> BP Oil Company <br /> 295 SW 41St St , Bldg 13 , Ste N P.O. # <br /> Renton, WA 98055 H177183 , COC#072054 <br /> ATTN: Scott Hooton DATE : 11/25/97 <br /> PROJECT: ##11195 , NA PROJECT NO: 10-151 -06/001 <br /> SITE: Lathrop, CA MATRIX: WATER <br /> SAMPLED BY: Alisto Engineering DATE SAMPLED: 10/15/97 <br /> SAMPLE ID: S-1 DATE RECEIVED: 10/17/97 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS DETECTION UNITS <br /> LIMIT <br /> MTBE 920 250 P yg/L <br /> Benzene ND 0 . 50 P pg/L <br /> Toluene ND 1 . 0 P ug/L <br /> Ethylbenzene ND 1 . 0 P Mcg/L <br /> Total Xylene ND 1 . 0 P Mcg/L <br /> Surrogate Recovery <br /> 1 , 4-Difluorobenzene 93 <br /> 4-Bromofluorobenzene 70 <br /> Method 8020A*** <br /> Analyzed by: MF <br /> Date : 10/23/97 <br /> Gasoline Range Organics ND 0 . 05 P mg/L <br /> Surrogate Recovery <br /> 1 , 4--Difluorobenzene 107 <br /> 4-Bromofluorobenzene 67 <br /> California LUFT Manual for Gasoline <br /> Analyzed by: MF <br /> Date : 10/22/97 09 : 33 : 00 <br /> (P) - Practical Quantitation Limit ND - Not detected. <br /> Notes : *fief : 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 />