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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 (510) 988 9600 FAX(510)988-9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> — —�........._.........�.__..=ins--—_�......._..-.. .,_- <br /> I Enviros Client Prof ID Shell 6131 Pacific, <br /> Q 270 Perkins Ave Stockton Sampled 09/16/97 <br /> Sample Descrip# MW-6-40' Received 09/19/97 <br /> I Sonoma, CA 95476 Matrix SOLID Extracted 09/29/97 <br /> Analysis Method EPA 8260 Analyzed 09/30/97 <br /> Attention_J Gaarder Lab Number 9709009-09 Reported 10/03/97 - 1 <br /> ' Batch Number MS092997M-TB EEXA <br /> Instrument ID F2 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/K9 u9/K9 <br /> Ethanol 50000 N D <br /> t-Butanol 5000 N D <br /> Metyl t-Butyl Ether(MTBE) 100 N D <br /> Di-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-Dichloroethane-d4 70 121 98 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> —J)P� <br /> Mi egory <br /> Project Manager Page 26 <br />