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819 Striker Avenue Suite 8 <br /> Sequoia Sacramento C 95834 <br /> (916)922 i-9600 <br /> 4 FAX(916)921-0100 <br /> ,!D Analytical www sequoialabs com <br /> VF <br /> Gettler-Ryan-Rancho Cordova Project Tosco 6981,Stockton,CA Sampled 4127100 <br /> 3164 Gold Camp Dr,Ste 240 Project Number NIA Received 4/27100 <br /> Rancho Cordova,CA 95670 Project Manager Mike Mitchener Reported 4/28100 <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 /> IAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0040279 Date Prepared 4127100 Extraction Method EPA 3050B <br /> Blank 0040279-BLKI <br /> Lead 4127/00 ND mg/kg 250 <br /> LCS 0040279-BS1 <br /> Lead 4/27100 500 49 2 mg/kg 800-120 984 <br /> Matrix Spike 0040279-MSI S004357-01 <br /> Lead 4127/00 500 ND 436 mg/kg 800-120 872 D <br /> Matrix Spike Du 0040279-MSDI S004357-01 <br /> Lead 4127100 500 ND 448 mg/kg 800-120 896 200 2 71 D <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 5 of 6 <br />