Laserfiche WebLink
3 0 CONCLUSIONS, RECOMMENDATIONS AND PROJECT STATUS <br /> Between December 22, 2003 and March 11, 2004, the groundwater surface beneath the site <br /> rose an average of 1 70 feet, the groundwater gradient increased from 0 0012 to 0 0020 <br /> foot/foot, and the groundwater flow direction shifted approximately 90 degrees toward the west- <br /> northwest The groundwater flow direction and gradient are consistent with historical trends <br /> Between December 22, 2003 and March 11, 2004, the concentrations of petroleum <br /> hydrocarbons detected in groundwater, including TPH-as-diesel, TPH-as-gasoline and BTEX <br /> compounds, generally increased The oxygenate compounds and 1,2-DCA continued to be <br /> below laboratory detection limits Since the three monitoring wells were installed in December <br /> 2000, the concentrations of petroleum hydrocarbons in groundwater have generally declined, <br /> probably 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 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 Monitonng 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 />