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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 Shell 141 N EI Dorado Sampled 10/05/98 <br /> 1680 Rogers Avenue Sample Descrlpt VEW-1 Received 10/08/98 <br /> San Jose, CA 95112 Matrix LIQUID <br />_= Analysis Method=8015Mod/8020 Analyzed=10/14/98= <br /> Attention Fran Thle Lab Number 9810725-08 Reported 10121198 <br /> QC Batch Number GC1 01 498BTEX21 A <br /> Instrument ID GCHP21 <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 25 280 <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 92 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUO LYTICAL - ELAP #1210 <br /> Peggy 4Wher <br /> Project Manager Page B <br />