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1 <br /> . Analytical results from the groundwater samples indicate that groundwater beneath and <br /> to the west of the former UST excavation remains impacted by significant concentrations <br /> of gasoline hydrocarbons The highest concentrations of gasoline hydrocarbons were <br /> detected in the groundwater sample collected from MW-2 This sample contained <br /> 210,000 µg/l of TPH-as-gasoline, 4,800 pg/l of benzene, 48,000 µg11 of toluene, 4,500 <br /> µg/l of ethylbenzene, 30,000 µg/l of xylenes, and 420 µg11 of 1,2-DCA The groundwater <br /> sample collected from MW-3 contained 940 µg/l of TPH-as-gasoline, 60 µg/I of TBA, and <br /> 230 µg/I of 1,2-DCA The groundwater sample collected from MW-1 did not contain <br /> detectable concentrations of any of the analyzed compounds Oxygenate compounds <br /> MTBE, DIPE, ETBE, and TAME were not detected in any of the groundwater samples <br /> The concentrations of TPH-as-gasoline and benzene are posted on Figure 4 The <br />' cumulative analytical results from the groundwater samples are summarized in Table 2 <br /> 1 <br /> t� <br /> 1 <br /> 7 <br /> i <br />