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Sequoia 6aO Chesapeake Drive Redwood Cry CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 IZI <br /> (925)988-9600- FAX(925)988-9673 <br /> Analytical819 Striker Avenue Suite 8 Sacramento CA 95834 i (916)921-9600 FAX f916)921-0100 <br /> 1455 McDowell Blvd [North Ste D Petaluma,CA 94954 L+ - (707)792-1865 12 FAX(,707)792-0342 <br /> 1.5�Gettler Ryan[Gemtrategies Client Prol ID Unocal Former Faci ty #0187 -. Sampled 08/17/98 <br /> 3 6747 Sierra Court Suite J Sample Descript TB-LB Received-08/1-7/98 <br /> Dublin, CA 94568 Matrix LIQUID „ <br /> Analysis Method 8015Mod/8020 Analyzed 08/28/98 <br /> Attention Deanna Harding _ _ Lab Number 9808A40-01 _ Reported 09J20198 <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 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 86 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41271 <br /> Granicher <br /> Project Manager Pae 1 <br /> 9 <br />