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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)9889673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> �III� Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Siaine Tech Services _ Client Proj ID Shell 2575 Country Club- Sampled 04/23/98 <br /> 1680 Rogers Avenue Sample Descript MW-5 Received 04/24/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 05/02/98 <br /> ==Attention_Fran Thie _ _ _ Lab Number=980.4H07=04 _ Reported 051-12198.; <br /> Fuel Oxygenates by EPA 8260 <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 2500 N D <br /> t-Butanol 500 N D <br /> Methyl t-Butyl Ether (MTBE) 10 300000 <br /> DI-Isopropyl Ether (RIPE) 10 11 <br /> Ethyl t-Butyl Ether(ETBE) 10 N D <br /> t-Amyl Methyl Ether (TAME) 10 2600 <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dlchloroethane-d4 76 114 75 Q <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUO AL ICAL - ELAP #1271 <br /> Peggy l4e&er <br /> Project Manager Page <br />