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4 <br /> 11 il <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (550)364-9600 FAX(650) 344-9233 <br /> 484 N WiSet Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> � <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-8100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(787)79Z-0342 <br /> -- _-.-'y......»......._..�...... - - -- Y.. •••»•._,^...... ----may....... : -....^- -__ �m <br /> Gettler RyanZGeostrategles s" Client Prol ID UNOCAL 0123, 280047 85 Sampled 06/22/98 <br /> 6747 Sierra Court Suite J Sample Descript U-3 Received 06/22/98 <br /> Dublin, CA 94568 Matrx LIQUID <br /> Analysis sis Meth d 8015Mod/8020 Analyzed 07/02/98 <br /> Attention Deanna Harding - - Lab Number 9806E65-04 _ _ _ - " _ Reported_07/17/98 <br /> QC Batch Number GC070298802004A" <br /> Instrument 1D HP-4 <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 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 112 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> k . <br /> od Granicher <br /> Project Manager Page 13 <br />