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Sequoia 680 Chesapeake Drove Redwood City CA 940(,3 {650) 364 9600 FAX (650) 364 9233 <br /> 404 N Wigrt Lane Wainut Crerk CA 94598 (5 10) 988 9600 FAX (510) 998 9673 <br /> Analytical �195trikrr A—nite `_Ante 8 5acramcy�to CA 'i7834 1916} 921 9600 F4X 19t6) 921 0100 <br /> Delta Environmenta) Consults Client Pro] ID Exxon 7-3708 D093-809 Sampled 03;30/98 <br /> 3164 Gold Camp Drive #200 Sample Desenpt MW-6 Received 03/30/98 <br /> Rancho Cordova CA 95670 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 04/05/98 <br /> Attention Jim Brownell Lab Number 98031-29-06 Reported 04f09f98 <br /> QC Batch Number MSO40598MTBEH6A <br /> Instrument 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 26 <br /> Di-Isopropyl Ether (DIPS) 20 N D <br /> Ethyl t-Butyl Ether (ETB E) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N 0 <br /> Surrogates Control Limits % % Recovery <br /> 1 2 Dichloroethane-d4 76 114 91 <br /> is <br />-ia)ytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> 49(,gory <br /> rolect Manager Page t 3 <br />