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Sequoia <br />Y80 Chesapeake Drive <br />Redwood City, r'-�!'g063 <br />(650) 364-9600 <br />FAX (650) 364-9233 <br />t,,404 N. Wiget Lane <br />(T) <br />Walnut Creek,L 598 <br />(925) 988-9600 <br />FAX (925) 988-9673 <br />Project Manager: <br />819 Stoker Avenue, Suite 8 <br />Sacramento, CA 5834 <br />(916) 921-9600 <br />FAX (916) 421-0100. <br />low <br />14551455 McDowell Blvd. North, Ste. D <br />Petaluma, CA 94954 <br />(707) 792-1865 <br />FAX (707) 792-0342 <br />" <br />1551 Industrial Road <br />San Carlos, CA 94070-4111 <br />(650) 232-9600 <br />FAX (650) 232-9612 <br />:ambria Environmental <br />Project: <br />EQUILON, 1313 E. Charter Way, Stockton, CA Sampled: <br />4/29/99 <br />!70 Perkins Street <br />Project Number: <br />N/A Received: <br />4/29/99 <br />ionoma, CA 95476 <br />Project Manager: <br />Aubrey Cool Reported: <br />5/4, 7/99 <br />Volatile Oxygenate Compounds by EPA Method 8260A <br />Sequoia Analytical - Sacramento <br />Batch Date Date Surrogate Reporting <br />Analyte Number Prepared Analvzed Limits Limit Result Units Nates* <br />TS -A=14-' S904402-01 <br />Sail <br />Tert-butyl alcohol 9050049 5/4/99 5/6/99 <br />10.0 <br />ND mg/kg <br />Methyl tert-butyl ether <br />0.100 <br />ND " <br />Di -isopropyl ether' <br />0.100 <br />ND " <br />Ethyl tert-butyl ether <br />0.100 <br />ND <br />Tert-amyl methyl ether <br />0.100 <br />ND " <br />Surrogate: 1,2 -DCA -d4 " " 11 60.0-140 101 <br />TS -B-14' S904402-02 <br />Sall <br />Tert-butyl alcohol 9050049 5/4/99 5/6/99 <br />10.0 <br />ND mg/kg <br />Methyl tert-butyl ether <br />0.100 <br />ND " <br />Di -isopropyl ether <br />0.100 <br />ND " <br />Ethyl tert-butyl ether <br />0.100 <br />ND " <br />Tert-amyl methyl ether <br />0.100 <br />ND " <br />11 11 60.0-140 96.4 <br />TS -C44' S904402-03 <br />SQn <br />Tert-butyl alcohol 9050049 5/4/99 5/6/99 <br />10.0 <br />ND mg/kg <br />Methyl tert-butyl ether 1.1 <br />0.100 <br />ND " <br />Di -isopropyl ether It It <br />0.100 <br />ND " <br />Ethyl tert-butyl ether <br />0.100 <br />ND " <br />Tert-amyl methyl ether <br />0.100 <br />ND " <br />1,2 -DCA -d4 " " " 60.0-140 96.8 <br />TS1L-14' S904402-04 <br />Stijl <br />Tert-butyl alcohol 9050049 5/4/99 5/6/99 <br />10.0 <br />ND <br />mg/kg <br />Methyl tert-butyl ether " 11 <br />0.100 <br />ND <br />" <br />Di -isopropyl ether <br />0.100 <br />ND <br />" <br />Ethyl tert-butyl ether <br />0.100 <br />ND <br />" <br />Tert-amyl methyl ether <br />0.100 <br />ND <br />" <br />Surrogate: 1,2 -DCA -d4 60.0-140 <br />104 <br />TS -F-1151 5904402-05 <br />Soil <br />Tert-butyl alcohol 9050049 5/4/99 5/6/99 <br />10.0 <br />ND <br />mg/kg <br />Methyl tert-butyl ether <br />0.100 <br />ND <br />" <br />Di -isopropyl ether <br />0.100 <br />ND <br />" <br />Ethyl tert-butyl ether <br />0.100 <br />ND <br />Tert-amyl methyl ether <br />0.100 <br />ND <br />" <br />Sequoia <br />"Refer to end of report for text of notes and definitions. <br />yAnalytical <br />l --^Sacramento <br />].1 , /( Ae /L /�/tJ <br />Sandra R. Hanson, Client Services Representative <br />Page 7 of 15 <br />0ra <br />