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•' 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-034Z <br /> SECOR International Project TOSCO 8671,Stockton,CA Sampled 1127199 to 1128199 <br /> 9912 Business Park Drive,Ste 100 Project Number 7G888-010-03 Received 1129199 <br /> Sacramento,CA 95827 Project Manager Rusty Benkosky Reported 2/12/99 <br /> Total Metals by EPA 6000/7000 Series Methods/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch, 9029990 Date Pr?;Led. 218199 ExtraCtion Method,-EPA 3050B <br /> Blank 9020090-BLKI <br /> Lead 2110/99 ND mg/kg 2 50 <br /> kCS 9020090-BSL <br /> Lead 2/10/99 500 497 mg/kg 800-120 974 <br /> Matrix Spike 9020090-MS1 59020.74-08 <br /> Lead 2/10/99 500 ND 445 mg/kg 800-120 89 0 D <br /> Matrix Spike Dup 9020090-MSD1 S902074-08 <br /> Lead 2/10/99 500 ND 44 4 mg/kg 80 0-120 88 8 20 0 0 225 D <br /> • <br /> Am <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 10 of 1 <br /> Sandra R Hanson,Client Services Representative <br /> r�i <br />