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1 <br /> • ADDITIONAL ACTIVITIES PERFORMED AT SITE <br /> t Airs ar n pilot test was conducted in September 2004 as art of an assessment of ozones ar m <br /> P � gP P P P g g <br />' as a remedial technology for the site Groundwater samples were collected from V3 before and after <br /> the test The laboratory analytical results are included in Appendix C and are presented in Table 6 <br /> The results of the air sparging pilot test was submitted under separate cover <br />' Three injection point pairs (IP 1, IP2 and IP3) and one exploratory boring (EB 1) were installed in <br /> September 2004 The investigation results will be presented under separate cover <br /> 1 <br /> WORK PROPOSED FOR NEXT QUARTER <br />' Groundwater will be monitored in accordance with the attached groundwater monitoring plan <br />' A work plan proposing bench scale testing in a laboratory to assess the applicability of using <br /> oxidants as remedial option will be prepared <br />' The UVB system will remain shut down <br />'i Attachments <br /> Figure 1 Site Plan Showing Groundwater Elevations and Analytical Results <br />' Figure 2 Site Map Showing Offsite Groundwater Monitoring Well Locations <br /> Figure 3 Influent TPH-g Concentrations and Estimated Mass of TPH-g Removed by WB <br /> System <br />' Figure 4 Influent Benzene Concentrations and Estimated Mass of Benzene Removed by <br /> UVB System <br />' Table 1 Well Construction Details <br /> Table 2 Groundwater Monitoring Data <br /> Table 3 Groundwater Monitoring Plan <br />' Table 4 Operation and Performance Data - UVB System <br /> Table S Summary of Analytical Results - UVB System <br /> I <br />' Appendix A Field Protocols <br /> Appendix B Field Documents <br /> Appendix C Laboratory Analytical Reports <br /> i <br />' g 1ptn3ects573942Vr=tus wp1gI664U942text doc 5 <br />