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Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N W9get Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(9 16)921-0100 <br /> Ti�——__ ___^.••r_—rrY:»— _ :__— y...—............s.. .. :s� s^,r—— ——�r�rsy•••••...•„z—r—__=—=zrrsz:sss.........»........................•.•••„•s—_�::r+=^r-___"'� <br /> c Enviros Client Prol ID Shell 613f Pacific, Stockton Sampled 09/16/97 <br /> 81270 Perkins Ave Sample Descript MW-5-51' Received 09/19/97 <br /> 29 Sonoma, CA 95476 Matrix SOLID Extracted 09/29/97 i <br /> Analysis Method EPA 8260 Analyzed 09/29/97 <br /> Attention J Gaarder Lab Number 9709C09-05 Reported AO _/97 _ <br /> QC Batch Number MS092997Mfbl - <br /> Instrument ID 1=2 <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 /> D1-isopropyl Ether(DIPE) 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-Dlchloraethane-d4 70 121 91 <br /> I <br /> I <br /> � I <br /> i <br /> Analytes reported as N D were not present above the stated lima of detection <br /> I <br /> SEQUOIA ,NALYTICAL - EL4P #1210 <br /> *Miegregory <br /> Project Manager Page 14 <br />