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' sample SPA-D) to 280 mg/kg (xylenes in sample SPH-L) MTBE, TAME and TBA were detected <br /> as high as 3,000 µg/kg, 240 gg/kg and 3,500 µg/kg, respectively Analytical results of soil samples <br />' are summarized on Table 1 <br /> AGE calculated that approximately 126 gallons of gasoline were removed In the soil excavated <br />' during the Interim remediation The highest concentrations of petroleum hydrocarbons compounds <br /> left In place were detected in the sample collected from the western wall of the former excavation <br /> Lower concentrations of petroleum hydrocarbons as gasoline were also detected In the floor sample <br />' and samples collected from the north and west sldewalls Fuel oxygenates,including MTBE,TAME <br /> and TBA were detected in all samples <br />' SITE ASSESSMENT <br />' On 15 through 17 October 2001, six soil borings (B1 through 136) were advanced at the site, three <br /> soil borings, B1 through B3, were established as ground water monitoring wells MW-1 through <br />' MW-3, respectively <br /> Soil In the area of boring B1 (MW-1) and locally borings B4 and B5 was found to contain high <br />' concentrations of petroleum hydrocarbons at depths of 15 bsg, with reduced concentrations <br /> encountered at depths to 70 feet bsg <br />' <br /> Groundwater monitoring data from the Initial groundwater momtonng event on 02 November 2001 <br /> Indicated that ground water was flowing towards the northeast, and was locally impacted by the <br /> oxygenated fuel additive MTBE <br /> I <br /> I <br /> I <br /> r <br /> IAdvanced CeoEnvironmental,Inc <br /> I <br />