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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> 11V ,,,� Analytical IIIStnk,,Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 9Z1 0100 <br /> EA Engineering Science &Tech Client Pro) ID Exxon 7-3942, 5153942 1300 Sampled 03/03/98 <br /> 3468 Mt Diablo Blvd Ste B100 Sample Descript P2 Received 03/04/98 <br /> Lafayette, CA 94549 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 03/12/98 <br /> Attention Chnsta Marting Lab Number 9803306-17 Reported 0331 98 <br /> C Batch Number MS031298MTBEH6A <br /> strument 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 N D <br /> Di-Isopropyl Ether (DIPS) 20 N D <br /> rEthyl t-Butyl Ether (ETRE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits % % Recovery <br />'1,2-Dichloroethane-d4 76 114 87 <br /> r <br /> r <br /> r <br /> r <br /> Analyses reported as N D were not present above the stated limit of detection <br /> IEQUOIA ANALYTICAL - ELAP 10 <br /> i—Rv y <br /> recr,d Herling <br /> Manager Page tis <br /> r <br /> 'bd' <br />