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a— ) <br /> Sequoia 680Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek CA 94598 (9Z5)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0(00 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prol ID Chevron 9-9840/981223-L1 Sampled 12/23/98 <br /> 1680 Rogers Avenue Sample Descrlpt MW-2 Received 12/28/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 12/31/98 <br /> Attention Christine Lillie Lab Number 9812G28-02 Reported 0111 1199 <br /> QC Batch Number MS123198MTBEH6A <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether (MTBE) 20 19 <br /> Dl-Isopropyl Ether (DIPE) 20 N D <br /> Ethyl t-Butyl Ether (ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits% % Recovery <br /> 1 2-Dichloroethane-d4 76 114 95 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> j4jectManager <br /> Page 4 <br />