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Sequoia <br />680 Chesapeake Drive Redwood City CA 94063 <br />(650) 364-%00 <br />FAX (650) 364 9233 <br />404 N Wiget Lane Walnut Creek CA 94598 <br />(9z5)988-9600 <br />FAX(9Z5)988 9673 <br />Analytical <br />819 Striker Avenue Suite 8 Sacramento CA 95834 <br />(916) 921-9600 <br />FAX (916) 921-0100 <br />1455 McDowell Blvd North Ste D Petaluma, CA 94954 <br />(707)79Z-1865 <br />FAX(707)79Z-0342 <br />�ettler-Ryan - Dublin <br />Client Project ID Chevron #9-5775, Lodi <br />Sampled <br />Aug 24, 1998 <br />6747 Sierra Court, Suite J <br />Sample Descript Soil, SP1 <br />Received <br />Aug 24, 1998 <br />Dublin, CA 94568 <br />Analysis Method EPA 8260 <br />Analyzed <br />Aug 26, 1998 <br />Attention Greg A Gurss <br />Lab Number 808-2197 <br />Reported <br />Aug 27, 1998 <br />Analyte <br />OXYGENATED COMPOUNDS (EPA 8260) <br />Detection Limit Sample Results <br />Ng/kg Ng/k9 <br />Ethanol 25,000 N D <br />t -Butanol 5,000 N D <br />et y t- utyl Ether 100 520 <br />DI -Isopropyl ter 100 <br />Ethyl t -Butyl Ether (ETBE) 100 N D <br />t -Amyl Methyl Ether (TAME) 100 N D <br />Surrogates Control Limit % % Recovery <br />1,2-Dichloroethane-d4 50 150 101 <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, #11271 <br />wl"44� <br />J�+ <br />uhanne Fegley <br />Project Manager <br />10 <br />8082197 GEF <4> <br />