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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-%00 FAX(925)988-9673 <br /> �llEl� 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)79z-0342 <br /> Blaine Tech Services Client Prol ID Chevron 9-4275/980624-J1 Sampled 06/24/98 <br /> 1680 Rogers Avenue Sample Descript MW-1 Received 06/25/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/30/98 <br /> Attention Fran Thie Lab Number 9806G68-01 Reported 07JO9198 <br /> CC Batch Number GC063098BTEX02A <br /> Instrument 1D 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 50D 2900 <br /> Methyl t-Butyl Ether 25 26 <br /> Benzene 5 0 N D <br /> Toluene 5 0 N D <br /> Ethyl Benzene 5 0 51 <br /> Xylenes (Total) 5 0 200 <br /> Chromatogram Pattern <br /> Gas& Unidentified HC C6-C12 <br /> Surrogates 70 130 <br /> Limits % 130 % Recovery <br /> TriHuorotoluene <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN LYTICAL - ELAP 01210 <br /> Vanager <br /> Pr c <br /> Page 2 <br />