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fi <br /> Date: July 29,2003 <br /> k Quarter 2nd 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 in MW-6 were <br /> generally consistent relative to the previous quarterly monitoring event All other reported concentrations were <br /> generally consistent with historic data reported from previous sampling events <br /> Groundwater elevations in the site monitoring wells generally decreased relative to the previous monitoring event <br /> The inferred direction of groundwater flow was to the northwest at an average gradient of 0 008 feet/foot(f/ft) 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 I Groundwater Monitoring and Analytical Data <br /> Table 2 Fuel Oxygenates Analytical Data <br /> Table 3 Groundwater Gradient Data <br /> FIGURES <br /> Figure l 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 Chain-of-Custody Records <br /> Appendix D Former Chevron and Former Scotty's Groundwater Monitoring Data <br /> K MPnro uV5 BP ARCOXI 11941Quw1erly\2 QTR 03111 194 QMR 2Q03 do Page 2 <br />