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q <br /> Sequoia 6$0 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)98$-9673 <br /> Aw Analytical 819 Straker 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 /> Blaine Tech Services Client Prol ID Shell 141 N E1 Dorado Sampled 10/05/98 <br /> 1680 Rogers Avenue Sample Descript VEW-3 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 9810725-10 Reported 10f 21 J98 <br /> QC Batch Number GC101498BTEX21 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 81 <br /> Benzene 050 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 404 Q <br /> 40 <br /> Analytes reported as vere not present above the stated limit of detection <br /> SEQUOIA AL ICAL - ELAP #1210 <br /> - 1101 <br /> Peggy Penne <br /> Project Manager Page 10 <br />