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� v <br /> Page 4 <br /> • Mr Michael Infurna Jr,Senior RENS <br /> February 8,2001 <br /> Petroleum hydrocarbons were not detected in the current quarter sample collected <br /> f from upgradient monitoring well MW-3, and only trace amounts were measured <br /> in the sample from well MW-1. Relatively high petroleum compound <br /> concentrations were detected in samples from MW-1 and MW-3 during the <br /> second quarter 2000 monitoring However, historic data indicates that the <br /> detection of these higher concentrations may have been an anomalous occurrence <br /> Three oxygenate compounds were measured during this recent monitoring event <br /> The groundwater sample collected from well MW-2 contained TBA, MTBE, and <br /> DIPE at concentrations of 95 ug/l, 15 ug/1, and 11 ug/l, respectively Oxygenate <br /> compounds were not detected to the samples collected from wells MW-1 and <br /> MW-3 <br /> r <br /> Conclusions <br /> Based on current monitoring data, groundwater was measured in the monitoring <br /> wells at a depth of about 24 to 25 feet below the ground surface Groundwater <br /> was evaluated to flow southeasterly at an approximate gradient of 2 13 x 10-3 feet <br /> per foot <br /> Current groundwater momtonng results indicate that concentrations of TPHg and <br /> BTEX compounds were detected in the MW-2 groundwater sample Trace <br /> amounts of these compounds were detected in the MW-1 sample. TPHg and <br /> BTEX compounds were not detected in the sample from monitoring well MW-3 <br /> TBA, MTBE, and DIPE were detected in the most recent sample collected from <br /> well MW-2 These oxygenate compounds were not detected in samples collected <br /> from the upgradient monitoring wells <br />