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Sequoia 680 Chesapeake Drive Redwood Clty CA 94063 (650)364-9600 FAX(650) 364-9Z33 <br /> 404 N WISet Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Cambna Environmental Project Shell Oil Co Sampled 1115/99 <br /> 270 Perkins St Project Number 880 Victor Rd -Lodi Received 1118/99 <br /> Sonoma,CA 95476 Project Manager Aubrey Cool Reported 1/26199 <br /> Total Metals by EPA 6000/7000 Series Methods/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Litrut Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9010380 Date Prepared 1121199 Extraction Method EPA 3050B <br /> Blank 9010380-BLK1 <br /> Lead 1/22/99 [ND mg/kg 750 <br /> LCS 9010380-BS1 <br /> Lead 1/22/99 700 69 1 mg/kg 80 D-120 98 7 <br /> Matrix Spike 9010380-MSI P901233-01 <br /> Lead 1/22/99 686 5720 6060 mg/kg 75 0-125 496 1 <br /> Matrix Spike Dun 9010380-MSDI P901233-01 <br /> Lead 1/22/99 648 5720 5600 mg/kg 750-125 -185 200 <br /> 438 1 <br /> Sequoia Analytical-Petaluma *Refer to end of report jor text of notes and definitions <br /> Page 7 of 8 <br />