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Date January 6,2004 <br /> Quarter 4's Quarter,2003 <br /> DISCUSSION: <br /> Total petroleum hydrocarbons as gasoline (TPHg), xylenes (total), methyl tert-butyl ether (MtBE), and 1,2- <br /> dichloroethane (1,2-DCA) were reported above method detection limits in groundwater samples collected from site <br /> wells this quarter TPHg, benzene, xylenes (total), and MtBE concentrations decreased in MW-2 relative to the <br /> previous sampling event In MW-3, the total xylenes concentration was reported as below method detection limits <br /> for the first time since sampling began in October of 2002 1,2-DCA concentrations decreased in MW-1,MW-2,and <br /> MW-3 this quarter Groundwater elevations in site wells increased relative to the previous monitoring event The <br /> inferred groundwater flow direction was to the southeast at an average hydraulic gradient of 0 0I2 feet/foot <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 I Groundwater Elevation and Analytical Data <br /> Table 2 Fuel Oxygenates Analytical Data <br /> Table 3 Groundwater Gradient Data <br /> FIGURES <br /> Figure 1 Groundwater Elevation Contours <br /> . Figure 2 Groundwater Analytical Summary <br /> APPENDICES <br /> Appendix A SJCEHD Letter dated November 17,2003 <br /> Appendix B Field and Laboratory Procedures <br /> Appendix C Laboratory Analytical Reports,Chain-of-Custody Documentation, and Field Data Sheets <br /> Appendix D GeoTracker Upload Confirmation <br /> K 1Wpr ces V5 RP ARC040W601QuartcriyW QTR 031760 CWMR 4003 doe Page 2 <br />