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680 Chesapeake Dnve Redwood Cary CA 94063 (650)364-9600 FAX(650)364-9133 <br /> ID <br /> Sequoia 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(915)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)92_t <br /> -0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prof ID Chevron 9-4275/980910-Z2 Sampled 09/10/98 <br /> 1680 Rogers Avenue Sample Descript MW-3 Received 09/11/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 09/17/98 <br /> Attention Fran Thie Lab Number 9809721-03 Reported 09J25198 <br /> CC Batch Number GCO91798802009A <br /> Instrument ID HP9 <br /> Total Purgeable 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 11 <br /> Benzene 050 0.75 <br /> Toluene 0 50 053 <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0 50 14 <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 107 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN LYTICAL - ELAP 01271 <br /> gory <br /> ct Manager Page 3 <br />