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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (650) 364 9600 FAX(6501 364 9233, <br /> 404 N Wiget Lane Walnut Creek, CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916Y921 0100` <br /> Blaine Tech Services Client Prol ID Shell Stockton/980112-H2 µ Sampled 01/13/98 <br /> 1680 Rogers Avenue Sample Descript VEW-1 Received 01/14/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> — _ .� <br /> Analysis Method EPA 8260 Analyzed 01/20/98 <br /> T Attention Fran Thie _ _ I_ab-Number=9801694=08 _ _ _ - Ripo& d� 1-JT <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) <br /> 20 ... .. 77 <br /> Di-Isopropyl Ether (DIPS) 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 92 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOI LYTICAL - ELAP #1271 <br /> Peggy Penner <br /> Project Manager Page 22 <br />