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Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94596 (510) 968-9600 FAX(510)988-9673 <br /> frilly Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> M Gettler�Ryan%Geostrategles --- -µ ---Client l�roj ID=L- Unocal SSW_5686 -- - �- =-µ - <br /> 6747 Sierra Court Suite J Sample Descript MW-3 Received 0Sampled 03/3/25/98 _ <br /> Y Dublin, CA 94568 Matrix LIQUID 25/98 <br /> Analysis Method 8015Mod/8020 Analyzed 04/04/98 <br /> .,-Attention Deanna Harding Lab Number 9803G82-04 Reported 04108198 <br /> QC Batch Number GGO40498802009A - <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 5000 N D <br /> Methyl t-Butyl Ether 250 8200 <br /> Benzene <br /> Toluene 50 N D <br /> Ethyl Benzene 50 N D <br /> Xylenes (Totaf) 50 N D <br /> Chromatogram Pattern 50 N D <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 er <br /> • 02 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> ory <br /> AroManager <br /> Page 10 <br />