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fSequoia 1455 McDowell Blvd,North Ste D <br /> �"�'�`' Petaluma,CA 94954 <br /> qWFAX Analytical (707)792 I84(707 792.4342 <br /> www sequoialabse <br /> Secor-Rancho Cordova Project Arco Site 4932,Stockton,CA P31130::] <br /> 3017 Kilgare Road Suite 100 Project Number 38984 Reporte <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 12/01/03 1 <br /> Purgeabie 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 3110464-EPA 5030 waters <br /> Blank(3110464-BLKI) Prepared&Analyzed 11/20/03 <br /> Gasoline Range Organics ND 50 ug/l <br /> Surrogate 4-Bromof7uorohenzene 268 300 89 65-135 <br /> Laboratory Control Sample(31104_64-BSI) Prepared&Analyzed 11/20/03 <br /> Gasoline Range Organics 2550 50 U94 2750 93 65-135 <br /> Surrogate 4-Bromofluorobenzene 290 300 97 65-135 <br /> Matrix Spike(3110464-MS1� Source P311278-17 Prepared&Analyzed 11/20/03 <br /> Gasoline Range Organics 309000 5000 ug/I 275000 57000 92 65-135 <br /> Surrogate 4-Bromofluorobenzene 289 300 96 65-135 <br /> Matrix Spike Du 3110464-MSDI Source P311278-17 Prepared&Analyzed 11/20/03 <br /> Gasoline Range Organics 308000 5000 ug/I 275000 57000 91 65-135 03 20 <br /> Surrogate 4-Bromof7uorobenzene 287 300 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 9 of 15 <br />