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Sequoia 1455 McDowell Blvd,North Ste D <br /> Petaluma CA�D) 94954 <br /> 941W Analytical (707)792-0865 <br /> FAX equot labs c 42 <br /> www sequoialabs com <br /> URS Corp-Sacramento Project BP Heritage Site 11194,Tracy,Ca P308015 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number WR36365 Reported <br /> Sacramento CA,95833 Project Manager Vernon P Elarth 09/16/03 17 10 <br /> Total Petroleum Hydrocarbons as Gasoline by EPA 8015B- Quahty Control <br /> Sequoia Analytical-Petaluma <br /> Reporting Spike Source %REC RPD <br /> Agalyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 3080091 -EPA 5030,waters <br /> Matrix Spike Du (3080091-MSDI) Source P308015-01 Prepared&Analyzed 08/06/03 <br /> Gasoline Range Organics 2370 50 ug/l 2750 20 85 65-135 2 20 <br /> Surrogate 4-Bromofluorobenzene 316 300 105 65-135 <br /> Batch 3080116-EPA 5030,waters <br /> Blank(3080116-BLKI) Prepared&Analyzed 08/07/03 <br /> Gasoline Range Organics ND 50 ugA <br /> Surrogate 4-Bromofluerobenzene 281 " 300 94 65-135 <br /> Laboratory Control Sample 3080116-BS1 Prepared&Analyzed 08/07/03 <br /> Gasoline Range Organics 2520 50 ug/l 2750 92 65-135 <br /> Surrogate 4-Bromofluorobenzene 304 300 101 65-135 <br /> atrix Spike 3080116-MS1 Source P308075-01 Prepared&Anal led 08/07/03 <br /> Gasoline Range Organics 2440 50 ug/l 2750 ND 89 65-135 <br /> Surrogate 4-Bromofluorobenzene 300 300 100 65-135 <br /> Matrix Spike Dup(_3084116-MSDI) Source P308075-01 -- Prepared&Analyzed 08/07/03 <br /> Gasoline Range Organics 2450 50 ug/l 2750 ND 89 65-135 04 20 <br /> Surrogate 4-Bromofluorobenzene 295 11300 98 65-135 <br /> �equoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain <br /> ojcusiody document Unless otherwise stated results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> Page 13 of 21 <br />