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` Sequoia 10 Chesapeake Drive Redwood City CA 94063 050) 364 9600 FAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek,CA 94598 (5 10) 988-9600 1 FAX(510)988 9673 <br /> IWO Analytical 819 Stoker Avenue,Suite 8 Sacramento, CA-958347 (916) 921-9600 FAX(916)921 MOO <br /> r <br /> Gettler Ryan/Geostrategies» Client Pro ID Unocal SS#0187 ; »»- » - - -m— - - — <br /> 6747 Sierra Court Suite J Sample DeSampfecl scn t TB-LB 02/13/98�� <br /> Dublin, CA 94568 Matrix LICUID Received 02/17/98 » <br /> Analysis Method 8015Mod/8020 Analyzed 02/25/98 <br /> Attention Deanna Harding Lab Number 9802A45-01 Reported 03102198 <br /> GC Batch Number GCO22598802005A <br /> Instrument ID GCHP05 <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) <br /> Pattern 0 50 N D <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 122 <br /> 0 <br /> Analytes reported as N D were not present above the stated iimct of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> za'�00111 <br /> regory <br /> Project Manager <br /> Page 1 <br />