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1455 McDowell Blvd,North Ste D <br /> Sequoia Petaluma,CA 94954 <br /> (707)'792-1865 <br /> A]]alytl Ca7 l FAX(707)792-0342 <br /> WWW sequolalabs com <br /> URS Corp-Sacramento Project BP Heritage Site 11194,Tracy,Ca P310692 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number WR36365 Reported <br /> Sacramento CA,95833 Project Manager Vernon P Elarth 11/14/03 15 55 <br /> Purgeable Hydrocarbons by EPA 8015B- Quality Control <br /> Sequoia Analytical-Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 3110137-EPA 5030,waters <br /> Blank(3110137-BLK1) Pre ared&Analyzed 11/07/03 <br /> Gasoline Range Organics ND 50 ugll <br /> Surrogate 4-Bromofluorobenzene 284 300 95 65-135 <br /> Laboratory Control Sample(3110137-BSI) Prepared&Analyzed 11/07/03 <br /> Gasoline Range Organics 2480 50 -10 2750 90 65-135 <br /> Surrogate 4-Bromofluorobenzene 304 300 101 65-135 <br /> Matrix Spike 3110137-MS1 Source P310692-01 Prepared&Analyzed 11/07/03 <br /> Gasoline Range Organics 2450 50 ugll 2750 12 89 65-135 <br /> Surrogate 4-Bromofluorobenzerie 301 300 100 65-135 <br /> Matrix Spike Du 3110137-MSD1 Source P310692-01 Prepared&Analyzed 11/07/03 <br /> asolme Range Organics 2490 50 ug/l 2750 12 90 65-135 2 20 <br /> urrogate 4-Bromofluarobenzene 303 300 101 65-135 <br /> Batch 3110208-EPA 5030,waters <br /> Blank 3170208-BLK1 Prepared&Analyzed 11/11/03 <br /> Gasoline Range Organics ND 50 ug/l <br /> Surrogate 4-Bromofluorobenzene 267 300 89 65-135 <br /> Laboratory Control Sample(3110208-BS1) Prepared&Analyzed 11/11/03 <br /> Gasoline Range Organics 2350 50 ug/l 2750 85 65-135 <br /> Surrogate 4 Bromofluorobenzene 288 300 96 65-135 <br /> Matrix Spike(3170208-MSI) Source P310692-08 Prepared&Analyzed 11/11/03 <br /> Gasoline Range Organics 2390 50 ugA 2750 11 87 65-135 <br /> Surrogate 4-Bromofluorobenzene 289 11300 96 65-135 <br /> Sequoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain <br /> . of custody document Unless otherwise stated results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> Page 12 of 22 <br />