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, <br /> Chesapeake Dnve Redwood City CA 94063 0) 364-9500 FAX(650)364-9233510) 988 9600 FAX(510)988-%73 <br /> CA 95834 <br /> " Sequoia 404 N Wiget Lane Wa)txtt <br /> Creek,CA 94598 (916 921 9600 FAX(916)921 0100 <br /> Anal 1Ca1 819 Striker ker Aver— Suites Sacramento, ( ) <br /> r - - Sampled 02/13/98 <br /> settler Ryan-JGeostrategies Client Prol ID Unocal SS#0187 Received 02/17/98 <br /> 1747 Sierra Court Suite J Sample Descnpt U-7 <br /> 1747 ,Sierra <br /> Court Matrix LIQUID Analyzed 02/25/98 <br /> Analysis Method 8015Mod/8020 Reported 03102/98 „ <br /> 4ttention Deanna Harding Lab Number 9802A45^-08 <br /> C Batch Number GCO22596802()05A = r <br /> istrument ID GCHP05 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTBX and MTB <br /> Limit Results <br /> Detection L� <br /> ug/L <br /> Analyte ug/L <br /> ND <br /> 50 N D <br /> TPPH as Gas 25 N D <br /> Methyi t-Butyl Ether 050 N D <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 <br /> Xylenes (Total) <br /> Chromatogram Pattern /o a <br /> Control Limits% i 30 Recovery <br /> Surrogates 70 <br /> 82 <br /> TrAluorotoiuene <br /> Analytes reported as N a were not present above the stated(unit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> Page 8 <br /> ory <br /> Project Manager <br />