Laserfiche WebLink
Date December 22,2004 <br /> Quarter 4`h Quarter,2004 <br /> • DISCUSSION: <br /> GRO and methyl Cert-butyl ether (MtBE) were detected above laboratory reporting limits in groundwater samples <br /> collected from site monitoring wells this quarter GRO and MtBE concentrations in monitoring wells MW-1,MW-2, <br /> MW-3, and MW-4 decreased this quarter In MW-3, tert-butyl alcohol (TBA) was not detected above Iaboratory <br /> reporting limits No other analytes were detected above laboratory reporting linuts <br /> Groundwater elevations in site monitoring wells decreased relative to the previous monitoring event The inferred <br /> direction of groundwater flow across the site was toward the southwest at an average hydraulic gradient that ranged <br /> from 0 001 to 0 007 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 /> TABLES: <br /> Table 1 Groundwater Elevation and Analytical Data <br /> Table 2 Fuel Oxygenates Analytical Data <br /> Table 3 Groundwater Gradient Data <br /> FIGURES <br /> Figure I Groundwater Elevation Contours <br /> Figure 2 Groundwater Analytical Summary <br /> • APPENDICES <br /> Appendix A Sampling and Analysis Procedures <br /> Appendix B Laboratory Analytical Report,Chain-of-Custody Documentation,and Field Data Sheets <br /> Appendix C GeoTracker Upload Confirmation <br /> • <br /> K 1WPMc WJ5 BP ARCOU 1191NQuarter1y000441 QTR 04111191 GWMP 4QO4 da <br /> Page 2 <br />