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1 <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> A 404 N 'get lane Walnut Creek,CA 94598 (510) 988-96W FAX(510)988-9673 <br /> Iwo Lel1alytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> • <br /> Gettler Ryan/Geostrategies -- �Cllent„Prof ID µ„- Unocal-SS# 5886Sampled 03/25/98 <br /> 6747 Sierra Court Suite J Sample Descript MW-6S 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 9803G82-10 Reported 04JO8198 <br /> QC Bauch 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 1000 D <br /> Methyl t-Butyl Ether 50 N N D <br /> Benzene <br /> 1400 <br /> Toluene 10 N D <br /> Ethyl Benzene 10 N D <br /> Xylenes (Total) 10 N D <br /> Chromatogram Pattern 10 N D <br /> Surrogates Control Limits% % Recovery <br /> Tritiuorotoluene 70 130 100 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN LYTICAL - ELAP #1271 <br /> Mfdivgor.y <br /> PrdW Manager <br /> Page 28 <br />