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aY ♦, <br /> . DISCUSSION <br /> The groundwater flow direction is towards the east with an average groundwater gradient of 0 0047 tuft <br /> The groundwater flow direction is consistent with previous groundwater monitoring events <br /> TPHG and BTEX compounds were detected in the samples collected from MW-1 through MW-7, with the <br /> exception of benzene in MW-6 MTBE was detected in the samples collected from MW-1, MW-3 and <br /> MW-4 DIPS was detected in MW-1 and MW-7 The analytical results of groundwater samples are <br /> generally consistent with previous sampling events, with the following exceptions Concentration of TPHG <br /> and benzene were below historical levels for MW-2 and MW-6 <br /> Following the completion of the soil and groundwater investigation, a report will be prepared presenting <br /> the results of the investigation <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Data <br /> • Table 2 Groundwater Analytical Results for Oxygenates <br /> • Table 3 Groundwater Flow Direction and Gradient <br /> • Figure 1 Site Location Map <br /> • Figure 2 Groundwater Elevation Contours (Second Quarter 2000) <br /> • Figure 3 Groundwater Analytical Summary (Second Quarter 2000) <br /> • Appendix A Sampling and Analysis Procedures <br /> • Appendix B Laboratory Analysis Reports for Groundwater Samples and Chain-of-Custody <br /> Records <br /> • Appendix C Groundwater Monitoring Field Data Sheets <br /> C 1ARCO\21681QTRLY1200012168Q200 DOC Delta <br /> 09/18/00 <br />