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Table 2 <br /> Groundwater Analytical Results for Oxygenates <br /> (USEPA Method 8260) <br /> ARCO Service Station No. 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Well <br /> Sample <br /> Number Date Tertiary Butanol MTBE DIPE ETBE TAME <br /> MW-6 11./19/97 NA NA NA NA NA <br /> MW-6 03/05/98 <100 <2 <2 <2 <2 <br /> MW-6 06/26/98 <100 <2 <2 <2 <2 <br /> MW-6 09/01/98 <100 <2 <2 <2 <2 <br /> MW-6 12/02/98 <200 <2 <2 <2 <2 <br /> MW-6 03/31/99 <200 22 <2 <2 <2 <br /> MW-7 11/19/97 NA NA NA NA NA <br /> MW-7 03/05/98 <100 <2 <2 <2 <2 <br /> I <br /> MW-7 06/26/98 <100 <2 <2 <2 <2 <br /> MW-7 09/01/98 <100 <2 <2 <2 <2 <br /> MW-7 12/02/98 <200 <2 <2 <2 <2 - <br /> MW-7 03/31/99 <200 <2 <2 <2 <2 <br /> MW-10 11/19/97 NA NA NA NA NA <br /> MW-10 03/05/98 <250* <5* <5* <5* <5* <br /> MW-10 06/26/98 <100 <2 <2 <2 <2 <br /> MW-10 09/01/98 <100 <2 <2 <2 <2 <br /> MW-10 12/02/98 <200 <2 <2 <2 <2 <br /> MW-10 03/31/99 <200 <2 <2 <2 <2 <br /> Analytical results in parts per billion <br /> TBE=Methyl tertiary butyl ether <br /> DIPS=Di isopropyl ether <br /> ETRE=Ethyl tertiary butyl ether <br /> AME=Tertiary amyl methyl ether <br /> <=Below detection limit for analytical methods used <br /> NA-Not analWed <br /> *Reporting limits raised due to matrix effects and/or other factors <br /> USEPA=U S Environmental Protection Agency <br /> �CsCKG�GQE <br /> CP1E\ARC0121301QTRLY12130Q 199 XLS <br /> Table 2 Page 2 of 2 <br />