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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 , <br /> 404 N Wiset Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Cambria Environmental Client Project ICS Shell, 341 East Main St, Ripon, CA Sampled Jul 15, 1998 <br /> 1144 65th St , Suite C Sample Descript Sod, Ci-S-29 Received Jul 17, 1998 <br /> Oakland, CA 94608 Analysis Method EPA 5030/8260 Extracted Jul 22, 1998 <br /> Attention Owen Ratchye Lab Number S807204 -05 Analyzed Jul 23, 1998 <br /> Reported Aug 3, 1998 ' <br /> OXYGENATES by GC/MS (EPA 8260) <br /> Analyte Reporting Limit Sample Results 1 <br /> Ng/kg Ng/kg <br /> Ethanol 3,600,000 N D <br /> Tertiary butanol 710,000 N D <br /> Methyl tertiary butyl ether(MTBE) . . . „ 14,000 27,000 <br /> Di-Isopropyl ether (DIPE) 14,000 N D ' <br /> Ethyl tertiary butyl ether (ETRE) 14,000 N D <br /> Tertiary amyl methyl ether (TAME) 14,000 N D <br /> 1 <br /> Surrogate Control Limits, % Recovery, % <br /> 1,2-Dichloroethane-d 4 70-121 92 <br /> Analytes reported as N D were not detected at or above the reporting limit Because matrix effects and/or other factors <br /> required additional sample dilution,reporting limits for this sample have been raised I <br /> 1`-SEQIJ% ANALYTICAL;ELAP #1210 �- <br /> nd C Schneider <br /> Project Manager/Sacramento Laboratory <br /> S807204 GAM <5> 1 <br />