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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia <br /> 404 N W1get Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Sulker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0]00 <br /> �Ilr Analytical <br /> 1455 McDowell Blvd North Ste D Petaluma.C4 94954 (707)792-1865 FAX(707)792-0342 <br /> --.lµt.�p.^-�. .-.—�i.s��-i»« «—. iii siu--.�� s s.......•^P']" — ii 1 t- «"���1 <br /> Gettler Ryan/GeostrategiesClient Prol ID Tosca SS#6981, 180138 85 " Sampled 05/27/98 <br /> 6747 Sierra Court Suite J Sample Descrlpt VW-3 Received 05/28/98 <br /> Dublin, CA 94568 Matrix LIQUID ed Q6 W <br /> « Analysis Method EPA 8260 Analyzed /03/98 <br /> -'Attention Deanna Harding Lab Number 9805H47-12 _ _ -Reported 47f24198 ; <br /> DC Batch Number MS06d298MTBEF2A <br /> Instrument ID FZ <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) 20 N D <br /> Di-Isopropyl Ether (DIRE) 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 85 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Tqiftanicher <br /> prjWt Manager Page 22 <br />