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I <br /> Sequoia 680 Chesapeake Drive Redwood Gty,=CA-94063 (650)364-9600 FAX(650) 364=9233 <br /> 404 N.WWrget lane Walnut Creek,CA 94598 <br /> } j (925)988-9600 FAX(925)988-9673 <br /> Iwo 819 Striker Avenue,Suite 8 iCal Sacramento,CA 95834 (906)922-9600 FAX(9[6)9z1-Of00 <br /> Analy C <br /> 1455 McDowell Blvd.North,Ste.D, Petaluma Ch 94954 (707)792-1865 FAX(707)792-0342 <br /> Pinnacle-C.P. Project: ARCO; 5469,Stockton CA <br /> 3939 Cambridge e Road, Ste. 220 Sampled: 2/17/99 <br /> g Project Number: N/A Received: 2/17199 <br /> Cameron Park,CA 95682 Project Manager: Mark Capps <br /> Re orted: 2/25,3/3/99 <br /> Total Metals by EPA 6000/7000 Series Methods/Quality Control j <br /> Sequoia Analytical-Sacramento. <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte An Level Result Result Units Recov. Limits % Limit %: Notes* <br /> Batch: 2020195 DaIrPreRared•2/ig/99/99. <br /> "ma 2UA)i -8[.K1 <br /> Extraction SfethodLYJ�� <br /> Lead 2/18199 <br /> t 'ND mgRcg 2.50 <br /> �� ,p 9020]95-RR1 _ <br /> Lead 2/18/99 50.0 48.9 mglkg. 80.0-120 97.8 <br /> Walrix SOU 9020125-MSI 5202229-02 " <br /> Lead 2118/99 50.0 11.5 60.0 mg/kg 80.0-120 97.0 <br /> D <br /> 9020195-MSni S902229-02 <br /> Lead 2118199 50.0 11.5 74.3 mg/kg' 80.0-120 126 20.0 26.0 2,3,D <br /> 1 <br /> 6 <br /> Sequoia Analytical -Sacramento *Refer to end of report for text of notes and.defrnuions. <br /> Ronald'W. Bobel,Client Services RepresOntative Page 7 of 9 <br /> r f <br />