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z <br /> . DISCUSSION <br /> TPHG was detected in the sample collected from offsite monitoring well MW-10 at a concentration of <br /> 11,000 µglL However, the well head was damaged during the widening of Hammer Lane which may <br /> have compromised the integrity of the well BTEX or fuel oxygenates were not detected in the sample <br /> collected from well MW-10 TPHG, BTEX, and MTBE were detected in the sample collected from well <br /> MW-5 at concentrations lust above method detection limits <br /> The groundwater flow direction was calculated toward the east at an average gradient of 0 0008 ft/ft <br /> which is consistent with previous quarters Groundwater elevations in the monitoring wells decreased <br /> approximately 3 feet since the previous sampling event(March 2001) <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Data <br /> • Table 2 Groundwater Analytical Results for Oxygenates <br /> • Figure 1 Site Location Map <br /> i <br /> • Figure 2 Groundwater Elevation Contours (Second Quarter 2001) <br /> • Figure 3 Groundwater Analytical Summary(Second Quarter 2001) <br /> • Appendix A Feld Data Sheets <br /> • Appendix B Sampling and Analysis Procedures <br /> • Appendix C Certified Analytical Reports and Cham-of-Custody Records <br /> • <br /> C 1ARC0121301QTRLX12001\Arco 2130 2Q01Report doc Delta <br /> 8124101 <br />