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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404N Wlget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> toll>� Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> r <br /> Gettler RyanlGeastrategles» Client Prol�ID�- UNOCAL 2859, Stockton » � �µ » Sampled 06/18/98 <br /> 6747 Sierra Court Suite J Sample Descrijt MW-4 Received 06/18/98 <br />= Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/28/98 <br /> Attention Deanna Harding _ _ _ Lab Number 9806089-05 Reported 0711OJ98_ - <br /> QC Batch Number GC062b988-02002A <br /> Instrument ID HP-2 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas . . . . 5o ... 61 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern .. . .. .. GAS <br /> Unidentified HC .. .. .. >C8 <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 100 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> -9111111kIn- <br /> T ranicher <br /> Project Manager Page 12 <br />