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•! 4.0 CONCLUSIONS, RECOMMENDATIONS AND PROJECT STATUS <br /> 1 <br /> Due to seasonal rainfall conditions since the three on-site wells were last monitored and sampled <br /> ' in December 2000, the groundwater surface beneath the site rose an average of 0 86 feet, and <br /> the groundwater gradient and flow direction remained constant Concentrations of petroleum <br /> ' hydrocarbons including TPH-as-diesel, TPH-as-gasoline and BTEX compounds also remained <br /> relatively constant between December 2000 and March 2001 The oxygenate compounds and <br /> 1,2-DCA continued to be below laboratory detection limits <br /> ' Results of the sensitive receptor survey identified three water wells in the site vicinity, as close as <br /> p Y Y, <br /> ' 1,000-feet from the site Given the absence of MTBE and the depth of the water wells, these <br /> receptors do not appear to be threatened by the petroleum hydrocarbons in groundwater beneath <br /> the site However, the extent of impacted groundwater beneath the site remains undefined <br /> ' Based on these conclusions Ramage Environmental recommends that additional environmental <br /> ' corrective actions be completed at the site Prior to proceeding with the additional corrective <br /> actions, PHSIEHD had requested in their letter dated May 16, 2000, that the interested parties <br /> meet to discuss the site information and to prioritize the work relative to five other county sites In <br /> the meantime, Ramage Environmental recommends that the on-site wells be monitored and <br /> sampled on a quarterly basis The next groundwater monitoring is scheduled for June 2001 <br /> 1 <br /> ' 10 <br />