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885 Jarvis Dr <br /> 4IN Sequoia Mergan HiQ,CA 95037 <br /> (408)776-9600 <br /> *I!W-. Analytical FAX(408)782-6308 <br /> www sequoialabs can <br /> URS Corporation[1] Protect BP Hentage Site#11194,Tracy,CA MMB0060 <br /> 2870 Gateway Oaks Dr,Ste 300 Protect Number BP Heritage Site#11194,Tracy,CA Reported <br /> Sacramento CA,95833 Protect Manager Vern Elarth 03/07/03 08 04 <br /> al Purgeable Hydrocarbons (C6-C10) and Volatile Organic Compounds by EPA method 8260B- Quality Con <br /> Sequoia Analytical -Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limn Notes <br /> Batch 31324023-EPA 5030B PIT <br /> Matrix Spike(3B24023-MSI) Source MMB0060-13 Prepared 02/24/03 Analyzed 02/25/03 <br /> Surrogate 1 2-Dichloroethane-d4 522 u9/1 500 104 78-129 <br /> Matrix Spike Dup(3B24023-MSDI) Source MMB0060-13 Prepared 02/24/03 Analyzed 02/25/03 <br /> Methyl tert-butyl ether 360 50 ug/l 904 310 55 3 0-200 697 200 <br /> Benzene 560 5 0 544 ND 103 78-124 345 12 <br /> Toluene 318 50 328 ND 97 0 78-129 255 10 <br /> Gasolme Range Organics(C6-C10) 4300 500 4400 ND 86 8 70-113 1 88 9 <br /> Surrogate 12-Dichloroethane-d4 531 5 00 106 78-129 <br /> I <br /> �equoia Analytical-Morgan Hill The results to this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced to its en irery <br /> 10 of 11 <br />