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a— ) <br /> 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N W1get Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> al„a Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Gettler Ryan/Geostrategie-s Client Prol ID Unocal 5886, 180137 85 Sampled 06/17/98 <br /> 6747 Sierra Court Suite J Sample Descnpt MW-5D Received 06/17/98 " <br /> s Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/27/98 <br /> Attention Deanna Harding _Lab Number 9806C26-07 _ Reported 07f09198_ „ <br /> OC Batch Number GC062798802002A <br /> Instrument ID HP-2 <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 0 50 0 61 <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0.50 0 55 <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 107 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - EI_HAP #1271 <br /> *Granicher <br /> ct Manager Page 19 <br />