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Date March 28,2003 <br /> Quarter: 18t Quarter,2003 <br /> DISCUSSION: <br /> TPHg, benzene, ethylbenzene, total xylenes, and methyl tert-butyl ether (MtBE) were reported in groundwater <br /> samples collected from site wells during this quarter Concentrations of TPHg,BTEX,and MtBE decreased in MW- <br /> 6 relative to the previous quarterly monitoring event All other reported concentrations were generally consistent <br /> with historic data reported from previous sampling events <br /> Groundwater elevations in the site monitoring wells generally increased relative to the previous monitoring event A <br /> regional groundwater elevation contour map and a regional groundwater analytical summary were created with data <br /> from the former Chevron service station at 575 Grant Line Road and the former Scotty's service station at 574 Grant <br /> Line Road <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 Monitoring Data <br /> Table 2 Analytical Results for Oxygenates <br /> Table 3 Groundwater Gradient Data <br /> FIGURES <br /> • Figure 1 Groundwater Elevation Contours <br /> Figure 2 Groundwater Analytical Summary <br /> Figure 3 Concentration and Water Level Trends(Well MW-2) <br /> APPENDICES <br /> Appendix A Field Data Sheets <br /> Appendix B Sampling and Analysis Procedures <br /> Appendix C Laboratory Analytical Reports and Cham-of-Custody Records <br /> Appendix D Former Chevron and Former Scotty's Groundwater Monitoring Data <br /> • <br /> K U5 BP ARCOV 11941Quarrerly\1 QTR 03111194 QMR 1Q03 do Page 2 <br />