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Sequoia 1455 McDowell Blvd North Ste D <br /> Petaluma CA 94954 <br /> 4,!TN {707)792-1865 <br /> 14W Analytical wFAX 792-p2 <br /> ww segUOequolalabs com <br /> i <br /> Cambria Environmental Project Equiva Sampled 3/30100 <br /> 270 Perkins St Project Number 620 W Charter,Stockton Received 3131100 <br /> Sonoma,CA 95476 Project Manager AubreyCool Reported 4/14/00 <br /> Total Metals by EPA 6000/7000 Series Methods/Quality Control <br /> - -- - - --Sequoia Analytical=Petaluma--- � -— - <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Anal ed Level Result Result Units Recov Lumts % Limit % Notes* <br /> Batch 0040061 Date Prepared 416100 Extraction Method EPA 3050B <br /> Blank 0040061-BLK1 <br /> Lead 4/6100 <br /> ND mg/kg 600 <br /> LCS 0040061-BS1 <br /> Lead 4/6100 50 0 528 mg/kg 800-120 106 <br /> Matrix Spike 0040061-MSI P004001-05 <br /> Lead 416100 490 226 65 7 mg/kg 750-125 880 <br /> Matrix Spike Dup 0040061-MSD1 P004001-05 <br /> Lead 4/6/00 481 226 743 mg/kg 750-125 107 200 195 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and defnztton <br /> i Page 9ofI] <br />