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Sequoia 680 Chesapeake Drive Redwood CLtM CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget 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(9t6)921 0100 <br /> ...»S..iR-i1•• •�• —_ i.SLs=••••••~ —StL» ....=ii-ii. <br /> Enviros Client Prol ID Shell 6131 Pacific,Stockton Sampled 09/16/97 ; <br /> 270 Perkins Ave Sample Descrept MW-5-31' Received 09/19/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/29/97 <br /> Analyses Method EPA 8260 Analyzed 09/29/97 <br /> Attention J Gaarder Lab Number 9709C09-03 _-__Reported 1010397 <br /> DC Batch Number MS092997MTBEEXA <br /> instrument ID FZ <br /> Oxygenate Compounds (EPA 8260) <br /> I <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 <br /> De-Isopropyl EtherDIPE) 100 N D <br /> Ethyl t-Butyl Ether �-'ETBE) 100 N D <br /> t Amyl Methyi Ether(TAME) 100 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dechloroethane-d4 70 121 89 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Mike G egory <br /> Project Manager Page 8 <br />