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ii <br /> . ■ , Sequoia 680 Chesapeakc Drive Redwood City,CA 94D63 (415) 364.9600 FAX (415) 364.9233 <br /> 404 N. Wiget Fane Walnut Creels,CA 94598 (510) 988-96W FAX(510)988.9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921.0100 <br /> i <br /> Terra Vac Corp. Client Project ID. 'Chevron #9-4054 Sampled Sep 29 -30 97" <br /> 1651 Alvarado Street Sample Descript: Water, GP-1 Received: Oct 1, 1997' <br /> San Leandro, CA 94577 Analysis Method: EPA 8260 Analyzed: Oct 8, 1997 <br /> Attention: Cliff Garratt Lab Number: 710-0034 <br /> Reported: Oct 13, 1997., <br /> QC Batch Number: MS100897MTBEFZA <br /> Instrument ID. F-2 <br /> OXYGENATE COMPOUNDS (EPA 8280) <br /> Analyte Detection Limit Sample Results <br /> 119/L 119/L <br /> Ethanol..................................•-------..... ......................... 2,500 ..................................... N.D. - <br /> t-Butanol............................................................................ 500 ..................................... N.D. <br /> Methyl t-Butyl Ether(MTBE)............................................. 10 ..................................... N.D. <br /> Di-Isopropyl Ether(DIPE)................................................. 10 ..................................... N.D. <br /> Ethylt-Butyl Ether(ETBE)................................................. 10 ..................................... N.D. <br /> t-Amyl Methyl Ether (TAME)............................................. 10 ............................... N.D. <br /> I <br /> Surrogates Control Limit % % Recovery <br /> 1,2-Dichloroethane-d4...................................................... 76 114..................................... 107 <br /> • I <br /> i <br /> I <br /> i <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL, 01210 <br /> Q_ I <br /> Melissa A. Brewer <br /> Client Services Representative <br /> 7100031.TVC <7> <br />