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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (915)988-9600 FAX(915)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707) 792-1865 FAX(707) 792-0342 <br /> Pacific Environmental Group-Sac Project UNOCAL 5417, Manteca,CA Sampled 8124/98 <br /> 11315 Sunrise Gold Circle St M Project Number 91 t-007 IB Received 8/25/98 <br /> Rancho Cordova CA 95742 Project Manager Mike Mitchener Reported 913/98 <br /> Organochlorine Pesticides and PCBs by EPA Method 8080A/Quality Control <br /> Sequoia Analytical- Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> IAnalvte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> LCS Dupfganttnuedl 8080287-85D1 <br /> Surrogate TCWX 8131/98 0 500 0 344 ug/1 400-140 688 <br /> Surrogate Decachlorobiphenyl 0 500 0 307 400-140 61 4 <br /> I <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Li da C Schneide , Laboratory Director Page 7 of 9 <br />