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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 6) 404 N Wiget Lane Walnut Creek.CA 94596 (925)988-9600 FAX(925)988-9673 <br /> Analytical Sig Striker Avenue Suite 8 Sacramento CA 95834 (707)921-9600 FAX(707)922-0340 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1$65 FAX(747)792-0342 <br /> I� <br /> —.-:� <br />-Gettler Ryan/Geostrategies�— M Client Prol ID UNOCAL 0123, 280047 85 Sampled 06/22/98 <br /> 6747 Sierra Court Suite J Sample Descript U-2 Received 06/22/98 <br /> Dublin, CA 94568 Matrix LIQUID Extracted 06/25/98 <br /> Analysis Method EPA 8015 Mod Analyzed 05/29/98 <br /> Attention Deanna Harding _ - Lab Number 9806E65-03 _ _ Reported 07/198_ <br /> DC Batch Number—GC0625984HBPEXZ <br /> nstrument ID GCHP19A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) with Silica Gel Cleanup <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 71 <br /> 0 <br /> Analytes reported as N 0 were not present above the stated limit of detect on <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> Granicher <br /> Project Manager Page 7 <br />