Laserfiche WebLink
i <br /> I <br /> I <br /> DISCUSSION <br /> In the uppermost portion of the water-bearing zone, petroleum hydrocarbons were detected in wells MW-1 <br /> through MW-7 The highest TPHG concentration (39,000 µg/L) was detected in well MW-6, and the <br /> highest benzene concentration (8,700 �tglL) was detected in well MW-3 TPHG (67 and 63 ttglL, <br /> respectively) and benzene (0 66 and 12 pg/L, respectively) were detected in both mid-depth wells MW-1 B <br /> and MW-813 Benzene (4 2 and 071 µg/L, respectively), was detected in the deepest screened wells <br /> MW-1 C and MW-8C Oxygenate compounds were not detected in any of the wells and 1,2 DCA was only <br /> detected in well MW-8 (3 2 pg/L) These results appear generally consistent with historical data <br /> The groundwater flow direction was calculated to be towards east at an average groundwater gradient of <br /> 0 011 ftlft The groundwater elevations decreased more than a foot since the previous monitoring event <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Data <br /> • Table 2 Groundwater Analytical Results for Oxygenates <br /> • Figure 1 Site Location Map <br /> • Figure 2 Groundwater Elevation Contours (Third Quarter 2001) <br /> • Figure 3 Groundwater Analytical Summary (Third Quarter 2001) <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 /> 0 <br /> • <br /> P\ARC0121681QTRLY\200112168-3QOIReport DOC Delta <br />