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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-%W FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Geek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> � Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (9T6) 921 9600 FAX(916)921 0100 <br /> Gettler Ryan�Geostrategies -" Client Prof'ID-"""Unocal-SS#588 <br /> 6747 Sierra 6 - -" "� Sampled 03/25%98 <br /> ourt Suite J Sample Descript MW-1 Received 03/25/98 <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 04/04/98 - <br /> 'Attention Deanna Harding Lab Number 9803G82-02 _ _ Reported 04108198 <br /> QC Batch Number GC040498802009A - - -" "" — - - - - - "--- <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 <br /> fib <br /> Benzene 0 50 N D <br /> Toluene <br /> Ethyl Benzene 0 50 N D0 50 N D <br /> Xylenes (Total) <br /> Pattern 0 50 N D <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 102 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> ory <br /> Project Manager Page 4 <br />