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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 6) 404 N Wiget Lane Walnut Geek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)92t 0100 <br /> Gettler Ryan/Geostrategtes ~ -Gent Prol-ID Former Unocal 2859, 280054 85 Received <br /> 6747 Sierra Court Suite J Sample Descrlpt MW-8 03/06/98 <br /> Dublin, CA 94568 Matrix LIQUID ed <br /> Analysts Method 8015Mod/8020 Analyzed 03/10/98 <br /> Attention Deanna Harding_ Lab Number 9803391-09 -_ _ _ _ __ Reported 03J18198 <br /> DC Batch Number GC0310986TEX02A <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 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> 0 50 N D <br /> Benzene <br /> 050 N D <br /> Toluene <br /> 050 N D <br /> Ethyl Benzene <br /> 0 50 N D <br /> Xylenes (Total) <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 88 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br />:SEQUOIA A ALYTICAL - EL.AP 41210 <br /> e <br /> Project Manager Page 8 <br />