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C) C) <br /> Sequoia 680 Chesapeake Drive Red-ood City,CA 94063 (415) 364.9600 FAX(415) 364-9233 <br /> 404 N.Wigc,lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 919 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0 100 <br /> Terra Vac Corp." Client Project ID: Chevron #9-4054 Sa-m—pled' :' Sep 29-30, 97. <br /> 1651 Alvarado Street Sample Descript: Water, GP-2 Received: Oct 1, 1997, <br /> San Leandro, CA 94577 Analysis Method: EPA 8260 Analyzed: Oct 8, 1997 <br /> Attention: Cliff Garratt Lab Number: 710-0035 Reported: Oct 13, 1997. <br /> CC Batch Number: MS100897MTBEF2A <br /> Instrument ID: F-2 <br /> OXYGENATE COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> pg/L pg/L <br /> Ethanol.......................................... ....................... 12,500 ..................................... N.D. <br /> t-Butanol...................................................'......*....*........*"' 2,500 ..................................... N.D. <br /> Methyl t-Butyl Ether (MTBE)............................................. so .............I.....................1. N.D. <br /> Di-Isopropyl Ether (DIPE)................................................. 50 ...................I............I.... N.D. <br /> Ethyl t-Butyl Ether (ETRE)............................•...........--....... 50 ..................................... N.D. <br /> t-Amyl Methyl Ether (TAME)............................................. 50 ..................................... N.D. <br /> Surrogates Control Limit % % Recovery <br /> 1,2-Dichloroethane-d4...................................................... 76 114..................................... 104 <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL, #1210 <br /> y`- <br /> Melissa A. Brewer <br /> Client Services Representative <br /> 7100031.TVC <8> <br />