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Yl A d , <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 H Wiget Fane Walnut Creek,CA 94598 (925)988-9600 FAX(9Z5)988-9673 <br /> I a- ) 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc- Client Prol ID Westrec Prop/Kir 62514 0001 Sampled 06/23/98-� -, <br /> 1260 Graphics Drive Sample Descript MW-6 Received 06/25/98 <br /> Modesto, CA 95351-1502 Matrix LIQUID <br /> ' Analysis Method EPA 8260 Analyzed 07/01/98 <br /> Attention Jeanne Homsey Lab Number_ 9806G74-06 _ _ _ Reported 07J16198 ' <br /> QC Batch Number MS063098MTBEH6A <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether (MTBE) .. 2.0 82 <br /> Di-Isopropyl Ether (DIPS) 20 N D <br /> Ethyl t-Butyl Ether(ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 76 114 102 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Project Manager Page 15 <br />