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3 <br /> HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE , <br /> HOUSTON TEXAS 77054 <br /> O •Certificate of Analysis No. H9-9910313-14 PHONE(713)660-0901 <br /> BP Oil Company P.O.# <br /> 295 SW 41st Bldg 13 , Ste N <br /> Renton, WA 98055 N/A, COC#100735 <br /> ATTN Scott Hooton 10/25/99 <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: 10/06/99 12 15 00 <br /> SAMPLE ID: CB-2-13 DATE RECEIVED: 10/09/99 <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 23 10 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 100 70 120 <br /> Toluene-d8 50 ug/Kg 82 80 140 <br /> 10 4-Bromoflucrobenzene 50 ug/Kg 86 74 130 <br /> ANALYZED BY FT DATE/TIME 10/11/99 16 33 . 00 <br /> METHOD 8260 Soil , Volatile Organics <br /> NOTES * - Practical Quantitation Limit ND - Not Detected <br /> NA - Not Analyzed <br /> COMMENTS : <br /> • <br /> QUALITY ASSURANCE: These analyses are performed in accordance <br /> with EPA guidelines for quality assurance <br /> SPL California License # 1903 <br />