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6) Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical Sts Sinker Avenue,Suite 8 Sacnmento, CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> er Ryan/Geostrategies — Client ProlµID Unocal SS#5886 - Sampled 03/25/98 ; <br /> 1 6747 Sierra Court Suite J Sample Descript MW-61D 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 9803G82-09 ______ _ _ _ _ Reported 0.4/08[98_ <br /> QC Batch Number GC646498802009A <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 10 1200 <br /> N D <br /> Toluene 10 N D <br /> Ethyl Benzene 10 N D <br /> Xylenes (Total) 10 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recove <br /> Trifluorotoluene 70 130 i0ry <br /> 3 <br /> 0 <br /> ialytes reported as N D were not present above the stated limit of detection <br /> ,E000IA ANALYTICAL - ELAP #1271 <br /> gory <br /> roject Manager Page 25 <br /> ra <br />