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ry � • <br /> . Table 2 <br /> Groundwater Analytical Results for Oxygenates (USEPA Method 8260) <br /> ARCO Service Station No. 2186 <br /> 3212 North California Street, Stockton, California <br /> Well <br /> Sample <br /> Number Date Tertiary butallal MTBE DIPE ETBE TAME <br /> MW-1 11/20/97 <100 7.8 <2 <2 <2 <br /> MW-1 02/17/98 NA NA NA NA NA <br /> MW-1 06/24/98 <200 3.9 <2 <2 <2 <br /> MW-1 09/21/98 <2000 138 <20 <20 <20 <br /> MW-1 12/14/98 <200 22.8 <2 <2 <2 <br /> W-1 (Discreet) 12/14/98 <200 31.4 <2 <2 <2 <br /> MW-1 03/31/99 <200 3.92 <2 <2 <2 <br /> MW-2 06/24/98 <200 3.3 <2 <2 <2 <br /> MW-2 09/21/98 <200 <2 <2 <2 <2 <br /> MW-2 12/14/98 <200 <2 <2 <2 <2 <br /> MW-2 03/31/99 <200 <2 <2 <2 <2 <br /> • MW-3 06/24/98 <200 2.9 <2 <2 <2 <br /> MW-3 09/21/98 <200 <2 <2 <2 <2 <br /> MW-3 12/14/98 <200 <2 <2 <2 <2 <br /> MW-3 03/31/99 X200 <2 <2 <2 <2 <br /> MW-4 11/20/97 190 13 <2 <2 <2 <br /> MW-4 02/17/98 180 25 <2 <2 <2 <br /> MW-4 06/24/98 <200 18.1 <2 <2 <2 <br /> MW-4 09/21/98 <200 <2 <2 <2 <2 <br /> MW-4 12/14/98 <200 24.1 <2 <2 <2 <br /> MW-4 03/31/99 <200 7.86 <2 <2 <2 <br /> VW-3 11/20/97 <100 <2 <2 <2 <2 <br /> VW-3 02/17/98 NA NA NA NA NA <br /> VW-3 06/24/98 <200 <2 <2 <2 <2 <br /> VW-3 09/21/98 310 23.5 <2 <2 <2 <br /> VW-3 12/14/98 <200 43.2 <2 <2 5.11 <br /> VW-3 03/31/99 <200 <2 <2 <2 <2 <br /> Oxygenates analyzed using USF-PA Method 8260. MTBE=Methyl tertiary butyl ether. <br /> a]ytical results in parts per billion. DIPE=Di-isopropyl ether. <br /> <=Below detection limit for analytical methods used. ETBE=Ethyl tertiary butyl ether. <br /> A=Not analyzed. TAME-Tertiary amyl methyl ether. <br /> CP\E:\ARCO\21861QTRLY121860199.XLS <br /> Table 2 <br />