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DISCUSSION <br /> This is the second groundwater-sampling event conducted at the site The initial sampling event was <br /> performed in June 2000, following installation of monitoring wells MW-1 through MW-3 <br /> TPHG was detected in the sample collected from monitoring well MW-1 at a concentration of 613 Pg/L <br /> MTBE was detected by USEPA Method 8260A in the sample collected from monitoring wells MW-1 and <br /> MW-2 at concentrations of 21 4 pg/L and 12 1 gg/L, respectively <br /> The groundwater gradient is relatively flat Groundwater flow direction was calculated to be towards the <br /> northeast at the time of the previous sampling event The groundwater elevation decreased less than one <br /> foot in the monitoring wells from the previous sampling event (June 2000) <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Data <br /> • Table 2 Groundwater Analytical Results for Oxygenates and Additional Compounds <br /> • Figure 1 Site Location Map <br /> • Figure 2 Groundwater Elevation Data (Third Quarter 2000) <br /> • Figure 3 Groundwater Analytical Summary(Third Quarter 2000) <br /> • Appendix A Field Data Sheets <br /> • Appendix B Sampling and Analysis Procedures <br /> • Appendix C Certified Analytical Reports and Chain-of-Custody Records <br /> i <br /> • <br /> PAVILIONIMyDocuments\ARC0160801QTRLY1200016080Q300 Delta <br /> 11/22/00 <br />