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' • • 1455 McDowell Blvd,North Ste D <br /> )♦ <br /> Sequoia Petaluma,CA 94954 <br /> � (707)792-1865 <br /> Analytical wPAX(707)792-0342 <br /> ww.sequoielabs.com <br /> MACTEC E&C-Petaluma ProjeccGeneral Corllmercial P412379 <br /> 5341 Old Redwood Highway,Suite 300 Project Number.SearstTracy-UST/AST-3205040383.02 Reported: <br /> Petaluma CA,94954 Project Manager.Gary Lieberman 01/05/05 10:53 <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 5010018-EPA 5030,soils/EPA 8015B-VOA <br /> Prepared&Analyzed:01/03/05 <br /> Blank(5010018-BLKI) <br /> ' Gasoline Range Organics(C(5-C10) NO 1000 ug/kg <br /> Surrogate:4-Bromafluorobenzene 387 600 64 65-135 S02 <br /> Laboratory Control Sample(5010018-BSI) Prepared&Analyzed:01/03/05 <br /> Gasoline Range Organics(C6-C10) 5400 1000 ug/kg 5500 98 65-135 <br /> Surrogate:4-Bromofluorobenzene 399 600 66 65-135 <br /> Matrix Spike(5010018-MS1) Source:P412379-01 Prepared&Analyzed:01/03/05 <br /> Gas <br /> oline Range Organics(C6-CI0) 3910 1000 uglkg 5500 55 70 65-135 <br /> Surrogate:4-Bromofluorobemene 404 600 67 65-135 <br /> Matrix Spike Du (5010018-MSDI) Source:P412379-01 Prepared&Analyzed:01/03/05 _ <br /> Gasoline Range Organics(C6-Cl0) 4520 1000 ug/kg 5500 55 81 65-135 14 20 <br /> Surrogate:4-Bromofluorobenzene 372 600 62 65-135 S02 <br /> ' Sequoia knalytical-Petaluma The results in 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 in its entirety. <br /> 1 <br /> Page 33 of 46 <br />