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1 <br /> Sequoia 680 G-. apeake Dave Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404 N WISet Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> CT) Analytical 819$taker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> viw- <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1 Pacific Environmental Group-Sac Project Unocal 0123,Tracy,CA Sampled 1016198 <br /> 11315 Sunnse Gold Circle St M Project Number 910-017 1 Received 10/7/98 <br />' Rancho Cordova,CA 95742 Project Manager Mike Mitchener Reported 10/20/98 <br /> Total Metals by EPA 6000/7000 Series Methods/Quality Control <br /> Sequoia Analytical-Sacramento <br /> 1 Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br />' Batch. 8100086 Date Prepared, 1018/98 Extraction Mptho ,_ EPA 3050B <br /> Blank 8100086-BLKI <br /> Lead 10/9/98 ND mg/kg 250 <br />' LSA 8LR49$6-J1 <br /> Lead 10/9/98 500 485 mg/kg 800-120 970 <br />' Matrix Spike 8100086-MSI 5810085-25 <br /> Lead 1019198 500 5 21 43-3 mg/kg 800-120 762 5 <br /> Matrix Spike JW 8100086-MSDI 5810085-25 <br /> Lead 10/9/98 500 521 448 mg/kg 800-120 792 200 3 86 5 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />'7�,—qu,­ <br /> nalytical -Sacramento *Refer to end of report for text of notes and definitions <br /> t <br /> inda C Schneider, Laboratory Dire or Page 13 of 16 <br />