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�,CATC <br /> A S S O C I A T E S I N C <br /> The groundwater collected from well MW3 contained TPHg at a concentration of 1,900 ppb and <br /> the chromatogram pattern indicated a weathered gasoline result The groundwater sample from <br /> well MM3 did not contain detectable concentrations of BTEX although the detection limits were <br /> elevated The groundwater sample from well MW3 did not contain detectable concentrations of <br /> oxygenate fuel additives Analytical results of groundwater samples are summarized in Table 3 <br /> 5.0 DISCUSSION <br /> ' Based on the analytical results and field observations soil and groundwater beneath the location <br /> yt <br /> of the former USTs are impacted by TPHg and BTEX The extent of impacted soil appears to be <br /> limited laterally to within approximately 50 feet of the former USTS The extent of impacted <br /> groundwater is not fully defined, although only benzene exceeded the MCL None of the soil or <br /> ' groundwater samples collected from the beneath the location of the former USTs contained <br /> oxygenate fuel additives In the judgment of ATC, additional site activities are necessary ATC <br /> recommends additional groundwater monitoring to confirm the groundwater gradient and <br /> direction, and to monitor concentrations of dissolved petroleum hydrocarbons <br /> 1 <br /> 1� <br /> w 114981Vq)o"s\sumwel doc 5 <br />