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` Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> ,TN 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988-9673 <br /> �,I,�► Analytical 819 Striker Avenue,Suite a Sacramento CA 95834 (916) 921 96W FAX(916)921 0100 <br /> Gettler Ryan/Geostrategies µ Client Proj ID- Unocal SS#5886�u Sampled 03/25/98 <br /> j 6747 Sierra Court Suite J Sample Descript MW-4S Received 03/25/98 - <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/03/98 <br /> _ Attention Deanna Harding _ Lab Number_9803G82-06 _ Reported 04108198 <br /> OC Batch Number GC040398802009A <br /> Instrument ID GCHP09 <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 79 <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) N D <br /> Chromatogram 0 50 Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 102 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01271 <br /> -Zo� <br /> MERM'gory <br /> o ct Manager Page tg <br /> m <br />