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i <br /> Sequoia 819 Striker Avenue,Suite 8 <br /> Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> IT Corporation-Sacramento Project: Parkinson ARCO 1, Sampled: 1/7/00 <br /> 1433 N.Market Blvd.,Ste. 1 Project Number: .N/A jr' Received: 1/10/00 <br /> Sacramento,CA 95834 Project Manager: Kathleen Waldo Reported: 1/11,24/00 <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: 0010110 Date Prepared: 1/12/00 Extraction Method: EPA 3050B <br /> Blank 0010110-BLKI <br /> Lead 1/12/00 ND mg/kg 2.50 <br /> LCS 0010110-BS1 - <br /> Lead 1/12/00 50.0 50.2 mg/kg 80.0-120 100 <br /> Matrix Spike 0010110-MS1 S001083-02 ' <br /> Lead 1/12/00 50.0 1540 1660 mg/kg 80.0-120 240 4,D . <br /> Matrix Spike Dup 0010110-MSDI 5001083-02 <br /> Lead 1/12/00 50.0 1540 1540 :,mg/kg 80.0-120 0 20.0 200 4,5,D <br /> _ W <br /> , <br /> Sequoia Analytical-Sacramento , *Refer to end of report for,text'of notes and definitions. <br /> 1 . <br /> Page 16 of 20 <br />