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• 1. Sequoia 680 Chesapeake Drwe Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (925)988-%00 FAX(9Z5)988-9673 <br /> Analytical 119 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-010 0 <br /> 140F1455 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-2 Received 06/25/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 07/07/98 <br /> Attention Fran Thie Lab Number 9806G68-02 Reported o7j09j98 <br /> QC Batch Number MS070798MTBEF2A <br /> Instrument ID F2 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/I- ug/L <br /> Ethanol 1450 N D <br /> t-Butanol 290 N D <br /> Methyl t-Butyl Ether (MTIBE) 58 54 <br /> Di-Isopropyl Ether (DIPE) 58 N D <br /> Ethyl t-Butyl Ether (ETRE) 58 N D <br /> t-Amyl Methyl Ether (TAME) 58 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dlchloroethane-d4 76 114 92 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> i <br /> ry <br /> Pr ct anager page 3 <br /> 206 <br />