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Sequoia680 Chesapcake 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 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(9t6)921-0100 <br /> E eros Client Prol�If] <br /> She 6131 Pacific, Stockton Sampled 09/16/97 <br /> ItEll 270 Perkins Ave Sample Descript MW-4-61' Received 09/19/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 09/29/97 <br />_M Analysis Method EPA 8260 Analyzed 09/29/97 <br /> � <br /> Attention J Gaarder w Lab-Number-9709C09-02"_ �_ �_ Reported 1003j97- --~- ~~- <br /> QC Batch Number MS092997MTBEEXA <br /> Instrument ID F2 <br /> 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 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 90 <br /> Analytes reporter!as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Mike r ory <br /> Project Manager Page 5 <br />