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680 Chesapeake Dnve Redwood City CA 94063 (650)364-9600 FAX(650 364-9232 <br /> Sequoia 404 N Wiget lane Walnut Creek CA 94598 (925)988-9640 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Prol ID Shell 6131 Pacific Ave Sampled 07/29/98 <br /> 1680 Roders Avenue - Sample Descrlpt MW-3 Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 08/01/98 <br /> Attention -Fran Thie Lab Number-9807H83.03_ - --� - - — Reported 09f 10(98 <br /> QC Batch Number MS080198MTBEH6A <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 1650 N D <br /> t-Butanol 330 N D <br /> Methyl t-Butyl Ether (MTBE) 66 30 <br /> D1-Isopropyl Ether (DIPE) 66 N D <br /> Ethyl t-Butyl Ether (ETBE) 66 N D <br /> t-Amyl Methyl Ether (TAME) 66 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 76 114 86 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> _SEQUOI N ICAL - ELAP #1210 <br /> Peg gyen r <br /> Project nager Page 5 <br />