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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 - FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services - Client Prod ID Chevron 9-4275/990310-Z1 Sampled 03/10/99 <br /> 1680 Rogers Avenue Sample Descript TB Received 03/11/99 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 03/23/99 <br /> Attention Christine Lillie Lab Number 9903653-11 Reported 03J26199 <br /> QC Batch Number GC032399BTEX02A <br /> Instrument ID GCHP02 <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 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> _ Xylenes (Total) _ 050 _ _ N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 122 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> I <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Me <br /> l Shin <br /> ct Manager pa e y t <br /> 9 <br />