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3 0 CONCLUSIONS, RECOMMENDATIONS AND PROJECT STATUS <br /> Between March 11, and June 25, 2004, the groundwater surface beneath the site dropped an <br /> average of 3 46 feet, the groundwater gradient increased from 0 0020 to 0 0025 foot/foot, and <br /> the groundwater flow direction shifted approximately 75 degrees toward the north-northeast <br /> The groundwater flow direction and gradient are consistent with historical trends <br /> ' Between March 11 and June 25, 2004, the concentrations of petroleum hydrocarbons detected <br /> in groundwater, including TPH-as-diesel, TPH-as-gasoline and BTEX compounds, generally <br /> decreased The oxygenate compounds and 1,2-DCA continued to be below laboratory detection <br /> limits Since the three monitoring wells were installed in December 2000, the concentrations of <br /> ' petroleum hydrocarbons in groundwater have generally declined, probably in response to source <br /> 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 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 /> 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 />