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4) ro <br />Table 2 <br />40 Groundwater Analytical Results for Oxygenates <br />Y Former ARCO Service Station No. 2168 <br />441 Charter Way, Stockton, California <br />Well <br />Sample <br />Number Date Tertiary butanol <br />MTBE <br />DIPE <br />ETBE <br />TAME <br />MW -5 02/17/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -5 05/25/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -5 08/18/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -5 12/17/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -6 (41) 11/17/97 <br /><3,300 <br /><67 <br /><67 <br /><67 <br /><67 <br />MW -6 05/22/98 <br /><10,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />MW -6 08/12/98 <br /><20,000 <br /><200 <br /><200 <br /><200 <br /><200 <br />MW -6 11/09/98 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -6 02/17/99 <br /><200 <br /><2 <br />882 <br /><2 <br /><2 <br />MW -6 05/25/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -6 08/18/99 <br /><200 <br />478 <br /><2 <br /><2 <br /><2 <br />MW -6 12/17/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -7 11/17/97 <br />NA <br />NA <br />NA <br />NA <br />NA <br />MW -7 05/22/98 <br /><10,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />MW -7 08/12/98 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -7 11/49/98 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -7 02/17/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -7 05/25/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -7 08/18/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />MW -7 12/17/99 <br /><200 <br /><2 <br /><2 <br /><2 <br /><2 <br />Oxygenates were analyzed using USEPA Method 8260 <br />alytical results in parts per billion <br />MTBE = Methyl tertiary butyl ether <br />DIPE = Di -Isopropyl ether <br />ETRE = Ethyl tertiary butyl ether <br />AME = Tertiary amyl methyl ether <br />= Below detection limit for analytical methods used <br />CP1E 1ARC0\2168\QTRLY\2168g499 sls IT Corporation <br />Page 2 of 2 02/07/2000 <br />