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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9293 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 96W FAX(510)988 9673 <br /> �till>I� Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 11* <br /> Blaine Tech Services Client Proj ID Shell Stockton 980129-S1 Sampled 01/29/98 <br /> 1680 Rogers Avenue Sample Descript MW-4 Received 01/30/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> _ Analysis Method EPA 8260 Analyzed 02/05/98 <br /> Attention Fran Thie Lab'Number-9801 H79-03 Reported-02f 12j98T'; <br /> QC Batch Number MS020598MTBEF3A <br /> Instrument ID F3 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 1700 N D <br /> t-Butanol 330 N D <br /> Methyl t-Butyl Ether(MTBE) 67 400 <br /> Di-Isopropyl Ether (DIPE) 67 N D <br /> Ethyl t-Butyl Ether (ETRE) 67 N D <br /> t-Amyl Methyl Ether (TAME) 67 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dichloroethane-d4 76 114 103 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOI L ICAL - ELAP #1210 <br /> Peggy P n r <br /> Project nager Page 7 <br />