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Date: December 6,2005 <br /> '1 Quarter. 4's Quarter,2005 <br /> concentrations decreased in MW-1 and MW-5, the lowest concentration since 2002 GRO and MtBE concentrations <br /> increased in MW-2, the highest concentrations historically MtBE concentrations in MW-3 increased, but remains <br /> consistent with historical data Other analyte concentrations were generally consistent with previous sampling events <br /> Groundwater elevations in site monitoring wells decreased relative to the previous monitoring event The inferred <br /> direction of groundwater flow across the site ranged from the southeast at an average hydraulic gradient that ranged <br /> from 0 002 ft/ft <br /> This report is based on data, site conditions, and other information that are generally applicable as of the date of the <br /> report,and the conclusions and recommendations herein are therefore applicable only to that time frame <br /> FIGURES <br /> Figure 1 Groundwater Elevation Contours <br /> Figure 2 Groundwater Analytical Summary <br /> TABLES: <br /> Table 1 Groundwater Elevation and Analytical Data <br /> Table 2 Fuel Oxygenates Analytical Data <br /> Table 3 Groundwater Gradient Data <br /> APPENDICES <br /> Appendix A Sampling and Analysis Procedures <br /> Appendix B Laboratory Analytical Report,Cham-of-Custody Documentation,and Field Data Sheets <br /> Appendix C GeoTracker Upload Confirmation <br /> K 1WprocessU5 BP ARCo111191\QuPnff 12005W QTR 05111191 GWMR 4Qp5 doc Page 2 <br />