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3 0 CONCLUSIONS, RECOMMENDATIONS AND PROJECT STATUS <br /> Between June 6, and September 15, 2003, the groundwater surface beneath the site dropped <br /> an average of 2 83 feet, the groundwater flow direction remained consistently toward the <br /> northwest, and the groundwater gradient decreased from 0 0026 to 0 0022 fooVfoot The <br /> groundwater flow direction and gradient are consistent with historical trends The depth to the <br /> groundwater surface is at its lowest level, since the three monitoring wells were installed in <br /> December 2000 <br /> Between June 6, and September 15, 2003, the concentrations of petroleum hydrocarbons <br /> detected in groundwater, including TPH-as-diesel, TPH-as-gasoline and BTEX compounds, <br /> remained relatively consistent The oxygenate compounds and 1,2-DCA continued to be below <br /> laboratory detection limits Since the three monitoring wells were installed in December 2000, <br /> the concentrations of petroleum hydrocarbons in groundwater have generally declined, probably <br /> in response to source removal and natural attenuation processes <br /> As shown on Figures 4, 5, and 6, the lateral extent of impacted groundwater at the groundwater <br /> table is mostly defined for TPH-as-diesel, undefined for TPH-as-gasoline, and fully defined for <br /> benzene Impacted groundwater appears to be concentrated beneath the former USTs and to <br /> the west and northwest (i e , downgradient) of the former USTs <br /> NOn May 8, 2003, Ramage Environmental published Work Plan, Additional Site Investigation and <br /> Groundwater Monitoring Report, First Quarter 2003 EHD approved the work plan on June 3, <br /> 2003 Currently, implementation of the approved scope of work is pending the availability of <br /> funding within the county budget <br /> 9 <br />