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3,0 CONCLUSIONS, RECOMMENDATIONS AND PROJECT STATUS <br /> Between March 22, and April 25, 2005, the groundwater surface beneath the site rose an <br /> average of 0 18 feet, the groundwater gradient decreased from 0 0025 to 0 0044 foot/foot, and <br /> the groundwater flow direction remained toward the northwest The groundwater flow direction <br /> and gradient are consistent with seasonal and historical trends <br /> Between March 22, and April 25, 2005, the concentrations of petroleum hydrocarbons detected <br /> in groundwater, including TPH-as-diesel, TPH-as-gasoline and BTEX compounds, generally <br /> increased The oxygenate compounds continued to be below laboratory detection limits, and <br /> 1,2-DCA was detected for the second consecutive quarter Since the three monitoring wells <br /> were installed in December 2000, the concentrations of petroleum hydrocarbons in groundwater <br /> have generally declined, probably in response to source removal and natural attenuation <br /> processes <br /> 1 As shown on Figures 4, 5, and 6, the lateral extent of impacted groundwater at the groundwater <br /> table is undefined for TPH-as-diesel and TPH-as-gasoline, and mostly defined for benzene <br /> Impacted groundwater appears to be concentrated beneath the former USTs, and to the west <br /> and north of the former USTs <br /> On May 8, 2003, Ramage Environmental published Work Plan, Additional Site Investigation and <br /> rGroundwater 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 />