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Sequoia680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364-9233 <br /> a) 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> a) Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> i <br /> Envlros Client Pro' <br /> –ID�-- Shell 6151 Pacific, Stockton_ _-- -W--Sampled 09/16/97T^� <br /> 1270 Perkins Ave Sample Descrlpt MW-6-55' Received 09/19/97 rm <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/29/971 <br /> Analysis Method EPA 8260 Analyzed 09/30/97 <br /> Attention J Gaa_rder_ ___ Lab Number 9709C09_-11 __ —Reported 1 Q 03197 _ <br /> OC-Batch Number MS092997MTBEEXA <br /> Instrument!D F2 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/Kg ug/Kg <br /> Ethanol 50000 N D <br /> t-Butanol 5000 N D <br /> Metyl t-Butyl Ether (MTBE) 100 N D <br /> DI-Isopropyl EtherD1PE) 100 N D <br /> Ethyl t-Butyl Ether (ETBE) 100 N D <br /> t-Amyl Methyl Ether(TAME) 100 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dlchloroethane-d4 70 121 93 <br /> a <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Ike regory <br /> Project Manager Page 32 <br />