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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX (650) 364 9233 <br />404 N Wiget Lane Walnut Creek, CA 94598 (915) 988-9600 FAX(925)988-9673 <br />819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921-9600 FAX (916) 921-0100 <br />woAnalytical 1455 McDowell Blvd North Ste Di'etaluma� 07) 792 1865 FAX(707)792 0341 <br />*ttler-Ryan - Dublin Client Project ID Chevron 9-5775, Lodl Sampled Aug 31, 1998 <br />747 Sierra Court, Suite J Sample Descript Soil, SP1 -RS .CO Received Sep 1, 1998 <br />Dublin, CA 94568 Analysis Method EPA 8260 0 1"' Analyzed Sep 2, 1998 <br />Attention Steve Carter Lab Number 809-0034t Reported Sep 2, 1998 <br />ETTLER- RYA INC. <br />OXYGENATED COMPOUg'6S (E*AC82QA(:TQ" <br />Analyte Detection Limit Sample Results <br />>1g/kg lig/kg <br />Ethanol <br />25,000 <br />39,000 <br />t - Butanol <br />5,000 <br />Methyl t -Butyl Ether (MTBE) <br />100 <br />N D <br />Di -Isopropyl Ether (DIPE) <br />100 <br />N D <br />Ethyl t -Butyl Ether (ETBE) <br />100 <br />N D <br />t -Amyl Methyl Ether (TAME) <br />100 <br />N D <br />Surrogates <br />1,2-Dichloroethane-d4 <br />• <br />Control Limit % <br />50 150 <br />Analytes reported as N D were not present above the stated limit of detection Because matrix effects and/or other factors <br />required additional sample dilution detection limits for this sample have been raised <br />SEQUOIA ANALYTICAL, #1271 <br />lianne Fegley <br />Project Manager <br />N. <br />% Recovery <br />93 <br />8090034 GET < 1 > <br />