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TABLE 3 <br /> ANALYTICAL RESULTS OF GROUND WATER SAMPLES - EPA METHOD 8260 <br /> Former Curtiss Pontiac-Buick <br /> 2450 Toste Road, Tracy, California <br /> (µg/1} <br /> Well Sample RIPE ETRE MTBE TAME TBA EDB 1,2-DCA <br /> Date <br /> 12-07-99 <100 <100 <100 <100 1,200 NA NA <br /> 03-17-00 <10 <1 0 21 <10 <5 0 NA NA <br /> 07-17-00 --- --- -- --- --- NA NA <br /> 10-17-00 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 01-30-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 04-25-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 07-27-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> MW-7 10-24-01 <1 0 <I 0 <1 0 <1 0 <5 0 NA NA <br /> 01-23-02 <1 0 <1 0 <1 0 <1 0 <5 0 <1 0 <1 0 <br /> 04-23-02 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 07-23-02 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 10-31-02 NS NS NS NS NS NS NS <br /> 03-12-03 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 07-16-03 <1 0 <1 0 <1 0 <1 0 <10 <0 5 <0 5 <br /> 12-11-03 <1 0f <1 0t <1 of 50t <lot <0 5t 50t <br /> 03-03-04 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 01-30-98 — — — — — NA NA <br /> 09-28-98 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 12-17-98 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 03-25-99 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 06-21-99 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 09-21-99 <1 0 <1 0 21 <1 0 <5 0 NA NA <br /> 12-21-99 <10 <10 <10 <10 <10 NA NA <br /> 03-17-00 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 07-17-00 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> GLMW-30 10-17-00 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 12-19-00 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 01-30-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 03-23-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 06-22-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 09-17-01 <1 0 <1 0 <1 0 <1 0 <5 0 NA NA <br /> 12-26-01 <1 0 <1 0 <5 0 <1 0 <25 <1 0 <1 0 <br /> 03-21-02 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 06-21-02 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 12-19-02 <0 5 <0 5 <0 5 <0 5 <5 0 NA NA <br /> 03-12-03 <0 5 <0 5 <0 5 <0 5 <5 0 NA NA <br /> 01-23-02 <1 0 <1 0 <1 0 <1 0 <5 0 <1 0 <1 0 <br /> 04-23-02 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> DW2450 07-23-02 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> 10-31-02 <0 5 <0 5 <0 5 <0 5 <5 0 NA NA <br /> 03-12-03 <0 5 <0 5 <0 5 <0 5 <5 0 <0 5 <0 5 <br /> Notes <br /> Concentrations in italics indicate suspected well Ib mix ups DIPE di isopropyl ether EDB l 2 dibromoethane <br /> t indicates suspected well ID mix ups ETRE ethyl tertiary butyl ether 1 2 DCA 12 dichloroethane <br /> • ground water sample collected from monitoring MTBE methyl tertiary butyl ether NA not analyzed <br /> well GLMW 3 at 2420 Grant Linc Road TAME tertiary amyl methyl ether NS not sampled <br /> µg11 micrograms per liter TBA tertiary butyl alcohol <br /> Advanced GeoEnvironmental <br />