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Sequoia <br />Analytical <br />819 Stnker Avenue Suite 8 <br />Sacramento CA 95834 <br />(916) 921-9600 <br />FAX (916) 921 -0 100 <br />www sequoialabs corn <br />0 <br />SECOR International - Rancho Cordova <br />Project <br />Chevron 9-5775, Lodi, CA <br />Sampled <br />7/12100 <br />3017 Kilgore Road, Suite 100 <br />Project Number <br />077 41991 043 <br />Received <br />7/12100 <br />Rancho Cordova, CA 95670 <br />Project Manager <br />Roger Hoffmore <br />Reported <br />7/13-14, 17100 <br />Volatile Organic Compounds by EPA Method 8260A <br />Sequoia Analytical - Walnut Creek <br />MW -11B <br />Batch <br />Date <br />Date Specific <br />Reporting <br />OG13020 7/13100 7/14100 EPA 8260A <br />500 <br />ND ug/1 <br />Analyte <br />Number <br />Prepared <br />Analyzed Method <br />Lima <br />Result <br />Units Notes* <br />ND " <br />D1 -isopropyl ether <br />EPA 8260A <br />20 <br />ND " <br />Ethyl tert-butyl ether <br />EPA 8260A <br />MW -12B (continued <br />ND " <br />tert-Amyl methyl ether <br />S007095-04 <br />20 <br />ND " <br />Water <br />tett-Amyl methyl ether <br />OG13020 <br />7/13100 <br />7/13/00 EPA 8260A <br />2 0 <br />ND <br />ug/l <br />1,2-Dichloroethane <br />1. <br />" <br />1. EPA 8260A <br />2 0 <br />ND <br />" <br />Ethylene dibromide <br />EPA 8260A <br />2 0 <br />ND <br />Surrogate Dibromofluoromethane <br />50-150 <br />104 <br />Surrogate 1,2-Dichloroethane-d4 <br />" <br />" <br />" 50-150 <br />900 <br />" <br />MW -813 <br />5007095-05 <br />Water <br />Ethanol <br />OG13020 <br />7/13/00 <br />7/13/00 EPA 8260A <br />500 <br />ND <br />ug/1 <br />tert-Butyl alcohol <br />EPA 8260A <br />100 <br />ND <br />" <br />Methyl tert-butyl ether <br />EPA 8260A <br />2 0 <br />ND <br />" <br />Di -isopropyl ether <br />EPA 8260A <br />2 0 <br />ND <br />" <br />Ethyl tert-butyl ether <br />EPA 8260A <br />2 0 <br />ND <br />" <br />tert-Amyl methyl ether <br />EPA 8260A <br />2 0 <br />ND <br />" <br />1,2-Dichloroethane <br />EPA 8260A <br />2 0 <br />ND <br />" <br />Ethylene dibromide <br />EPA 8260A <br />2 0 <br />ND <br />• <br />Surrogate Dihromofluoromethane <br />50-150 <br />104 <br />Surrogate 1,2-Dichloroethane-d4 <br />50-150 <br />70 0 <br />" <br />MW -11A <br />5007095-06 <br />Water <br />Ethanol <br />OGt3020 <br />7/13/00 <br />7/13/00 EPA 8260A <br />500 <br />ND <br />ug/1 <br />tert-Butyl alcohol <br />11EPA <br />8260A <br />100 <br />ND <br />" <br />Methyl tert-butyl ether <br />IFEPA <br />8260A <br />2 0 <br />ND <br />" <br />Di -isopropyl ether <br />EPA 8260A <br />2 0 <br />ND <br />IF <br />Ethyl tort -butyl ether <br />EPA 8260A <br />2 0 <br />ND <br />" <br />tert-Amyl methyl ether <br />EPA 8260A <br />2 0 <br />ND <br />" <br />1,2-Dichloroethane <br />EPA 8260A <br />2 0 <br />ND <br />" <br />Ethylene dibromide <br />EPA 8260A <br />2 0 <br />ND <br />to <br />Surrogate Dibromofluoromethane <br />50-150 <br />104 <br />Surrogate 12-Dichloroethane-d4 <br />" <br />" <br />" 50-150 <br />70 0 <br />" <br />MW -11B <br />5007095-07 <br />Water <br />Ethanol <br />OG13020 7/13100 7/14100 EPA 8260A <br />500 <br />ND ug/1 <br />tert-Butyl alcohol <br />EPA 8260A <br />100 <br />ND " <br />Methyl tert-butyl ether <br />EPA 8260A <br />20 <br />ND " <br />D1 -isopropyl ether <br />EPA 8260A <br />20 <br />ND " <br />Ethyl tert-butyl ether <br />EPA 8260A <br />20 <br />ND " <br />tert-Amyl methyl ether <br />EPA 8260A <br />20 <br />ND " <br />1,2-Dichloroethane <br />EPA 8260A <br />20 <br />ND " <br />Ethylene dibromide <br />EPA 8260A <br />20 <br />ND " <br />Surrogate Dtbromofluoromethane <br />" 50-150 <br />106 % <br />Surrogate 1,2-Dichloroethane-d4 <br />50-150 <br />720 " <br />Sequoia Analytical - Sacramento <br />to end of report for text of notes and <br />Page 5 of 13 <br />