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�i <br /> w <br /> • 1455 McDowell Blvd, <br /> um Noah Ste D <br /> Sequoia Petaluma,CA 94954 <br /> Analytical (707)792-0865 <br /> 342 <br /> FAX equoi 792-0342 <br /> www sequo�alabs corn <br /> URS Corp-Sacramento Project Arco Site 760,Lodi,CA P30750I <br /> 2870 Gateway Oaks Drive Suite 300 ProjectNumber WR36622 Reported <br /> Sacramento CA,95833 Project Manager Vernon P Elarth 08/11/03 13 44 <br /> Total Petroleum Hydrocarbons as Gasoline 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 3070664-EPA 5030,waters <br /> Blank 3070664-BLK1 Prepared&Analyzed 07/31/03 <br /> Gasoline Range Organics ND 50 ug/l <br /> Surrogate 4-Bromofluorobenzene 284 300 95 65-135 <br /> Laboratory Control Sample(3070664-BS1) Prepared&Analyzed 07/31/03 <br /> Gasoline Range Organics 2700 50 u8/1 2750 98 65-135 <br /> Surrogate 4-Bromofluorobenzene 306 300 102 65-135 <br /> Matrix Spike 3070664-MS1 Source P307478-01 Prepared&Analyzed 07/31/03 <br /> Gasoline Range Orgamcs 2620 50 ugfl 2750 ND 95 65-135 <br /> Surrogate 4-Bromofluorobenzene 300 300 100 65-135 <br /> Matrix Spike Dup(3070664-MSD1) Source P307478-01 Prepared&Analyzed 07/31/03 <br /> AMINGasolme Range Organics 2530 50 ug/l 2750 ND 92 65-135 3 20 <br /> arrogate 4-Bromofluorobenzene 293 11300 98 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 /> 0 basis This analytical report must be reproduced in its entirety <br /> Page 6 of 9 <br />