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` 1455 McDowell Blvd,North Ste D <br /> Sequoia Petaluma,CA 94454 <br /> 1W Analytical (707)792-1865 <br /> 0342 <br /> FAX(707)792-0342 <br /> www sequoualabs corn <br /> 0 <br /> URS Corp-Sacramento Project BP Heritage Site 11194,Tracy,Ca P411027 <br /> 2970 Gateway Oaks Drive Suite 300 Project Number WR36365 Reported <br /> Sacramento CA,95833 Project Manager Jeff Brooks 12/06/04 15 39 <br /> Purgeable Hydrocarbons by EPA 8015B - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source °/9REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 4110244-EPA 5030B,waters/EPA 8015B-VOA <br /> Blank(4110244-BLKI) Prepared&Analyzed 11/09/04 <br /> Gasoline Range Organics(C4-C 12) ND 50 ug/1 <br /> Surrogate 4-Bromofluorobenzene 320 300 107 804-110 <br /> Laboratory Control Sample(4110244-BSI) Prepared&Analyzed 11/09/04 <br /> Gasoline Range Organics(C4-C 12) 2540 50 ug/I 2750 92 67-101 <br /> Surrogate 4-Bromofluorobenzene 335 300 112 804-110 LH <br /> Matrix Spike(4110244-MSI) Source P411027-01 Prepared&Analyzed 11/09/04 <br /> Gasoline Range Organics(C4-C 12) 2530 50 UFA 2750 ND 92 67-101 <br /> Surrogate 4-Bromofluorobenzene 3.28 300 109 804-110 <br /> Matnx Spike Dup(4110244-MSD1) Source P411027-01 Prepared&Analyzed 11/09/04 <br /> Gasoline Range Organics(C4-C12) 2510 50 ug/I 2750 ND 91 67-101 08 20 <br /> �urrogate 4-Bromofluorobenzene 329 300 110 804-110 <br /> Sequoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise staled results are reported on a wet weight basis <br /> • This analytical report must be reproduced in its entirety <br /> Page 7 of 10 <br />