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Sequoia 680 Chesapeake Drive Redwood City, C4 94063 (650) 364 9600 FAX(6507 364 9233' <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(5t0)988 9673 <br /> ftill>I� Analytical 819 StrnkerAvenue,Suite 8 Sacramento,CA 95834 (9t6) 921 9600 FAX(916)921 0100' <br /> Blaine Tech Services Client Prol ID Shell Stockton/980112-H2 - Sampled 01/13/98 <br /> 1680 Rogers Avenue Sample Descript MW-4 Received 01/14/98 <br /> San Jose, CA 95112 Matrix LIQUID <br />^ , Analyysis Method EPA 8260 Analyzed 01/20/98 <br /> _ Attention Fran Thie - - - Lab Nufrlber 9801694-06 -- - _ _ Reported-01 J30J98 <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(DIPE) 20 N D <br /> Ethyl t-Butyl Ether(ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits % % Recovery <br /> 1,2-Dichloroethane-d4 76 114 89 <br /> t <br /> eported as N D not present above the stated limit of detection <br /> OI NA ICAL - ELAP #1271 <br /> • <br /> Peggy Pe er <br /> Project Manager Page 16 <br />