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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 (925)988-9600 FAX(925)988-%73 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Q <br /> Gettler RyanyGeostrategies Client Prol ID Unocal Former Faculty#0187 Sampled 08/17/98 <br /> 3 6747 Sierra Uourt Suite J Sample Descript U-3 Received 08/17/98 <br />„ Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/28/98 <br /> ' Attention Deanna Harding _ Lab Number 9808A40-04 _ _— Reported 09J20J98 - <br /> Instrument ID HP5 <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 .. 1000 .. 17000 <br /> Methyl t-Butyl Ether 50 N D <br /> Benzene .. 10 .. 780 <br /> Toluene .. 10 .. .. 110 <br /> Ethyl Benzene 10 .... 770 <br /> Xylenes (Total) .. 10 .... 3300 <br /> Chromatogram Pattern <br /> Surrogates Control Limos % % Recovery <br /> Trlfluorotoluene 70 130 76 <br /> , • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> Tod Granicher <br /> Project Manager Page 4 <br />