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IDecember 2003 <br /> I Approximately 340 cubic yards of petroleum hydrocarbon-impacted soil was excavated from the <br /> former UST location Soil was disposed of at Forward Landfill in Manteca,California Based on the <br /> low to non-detect concentrations of petroleum hydrocarbons in the soil samples collected from the <br /> sidewalls and floor of the excavation, it appears that the mayor portion of the most significantly <br /> impacted soil was removed during over-excavation <br /> Ground Water Monitoring <br /> Based on analytical results of ground water samples collected during quarterly monitoring and site <br /> assessment activities, the most impacted ground water appears to be centered around EW-1 and <br /> MW-10 The vertical extent of the contamination plume, as well as the lateral extent east and south <br /> of the former UST cluster, is not well defined <br /> I <br /> I • <br /> I <br /> i <br /> i <br /> l <br /> I <br /> I <br /> I <br /> r <br /> I <br />