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y <br /> HOUSTON LABORATORY4 <br /> 8880 INTERCHANGE DRIVE i <br /> HOUSTON TEXAS 77054 <br /> ertificate of Analysis No. H9-9910418-11 PHONE(713)6600901 • <br /> BP Oil Company <br /> 295 SW 41st Bldg 13 , Ste N P O # <br /> Renton, WA 98055 J131881 , COC#100527 <br /> ATTN Scott Hooton 11/08/99 <br /> PROJECT: #11193 , 3202 W Hammer Lane PROJECT NO: 852-1530 <br /> _SITE:_ Stockton CA_ _ _ _ _ _ MATRIX: SOIL <br /> SAMPLED BY: Cambria Env Technology DATE SAMPLED: 10/08/99 13 50 00 <br /> SAMPLE ID: CB-4-13 5 ft DATE RECEIVED: 10/12/99 <br /> ANALYTICAL DATA <br /> PARAMETER RESULTS PQL* UNITS <br /> Benzene ND 5 ug/Kg <br /> Ethylbenzene ND 5 ug/Kg <br /> Toluene ND 5 ug/Kg <br /> Xylenes (total) ND 5 ug/Kg <br /> Methyl t-butyl ether J 1100 1200 ug/Kg <br /> t-Amyl Methyl Ether ND 10 ug/Kg <br /> SURROGATES AMOUNT % LOWER UPPER <br /> SPIKED RECOVERY LIMIT LIMIT <br /> 1, 2-Dichloroethane-d4 50 ug/Kg 96 .70 120 <br /> Toluene-d8 50 ug/Kg 86 80 140 <br /> 4-Bromofluorobenzene 50 ug/Kg 84 74 1300 <br />----ANALYZED--BY _FI,_ _ -______3_ -DATE/TIME-"""10/20/99-17-38--00 _______ _ _ _ _ <br /> METHOD -8260-Sorb Volatile Organics <br /> NOTES * - Practical Quantitation Limit ND - Not Detected <br /> NA - Not Analyzed <br /> J - Estimated value <br /> COMMENTS : <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance <br /> SPL California License # 1903 <br />