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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 C=ck C4 94598 (510) 968-9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Gettler Ryan/Geostrategles _ Client Prol ID Former Unocal 2859, 280054857 Sampled 03/06/98 <br /> 6747 Sierra Court Suite J Sample Descript MW-2 Received 03/06/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 03/10/98 <br /> Attention Deanna Harding _ Lab Number 9803390-03 _ _ _ _ ____ Reported 03118198 <br />)C Batch Number GC031098STEX02A -'-----�- <br /> nstrument ID GCHP2 <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 20000 80000 <br /> Methyl t-Butyl Ether 1000 N D <br /> Benzene 200 780 <br /> Toluene 200 15000 <br /> Ethyl Benzene 200 3000 <br /> 14000 <br /> Xylenes (Total) 200 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 94 <br /> 40 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Page 8 <br /> Pro ct anager <br />