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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(65M 364-9233 <br /> Sequoia 404 N W1get 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 /> ftill� Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792 1865 FAX(707)792-0342 <br /> BlaineTech-Services Client Proj ID Shell 6131 Pacific Ave Sampled 07/29/98 <br /> 1680 Rogers Avenue Sample Descrlpt VEW-2 Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 07/31/98 <br /> - AtterltioriFran Thie Lab Number-9807H83-08 Reported -09J10198_—, <br /> QC Batch Number MS073198MTBEH6A <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) f _ <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 71500 N D <br /> t-Butanol 14300 N D <br /> Methyl t-Butyl Ether (MTBE) 286 N D <br /> DI-Isopropyl Ether (DIPE) 286 N D <br /> Ethyl t-Butyl Ether (ETBE) 286 N D <br /> t-Amyl Methyl Ether (TAME) 286 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 76 114 103 <br /> Analytes reported as N D e not present above the stated limit of detection <br /> - SEQUOI - L ICAL - ELAP #1210 <br /> t <br /> Peggy P ne <br /> Project M ger Page 15 <br />