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TABLE OF CONTENTS <br /> 1. GENERAL SITE CONDITIONS............................................................................................................I <br /> 1.1 : Regional/Local Hydrogeology.....................................................................................:........... I <br /> 2. PREVIOUS ENVIRONMENTAL ACTIVITIES....................................................................................2 <br /> 3. HUMAN HEALTH AND ECOLOGICAL RISK SCREENING EVALUATION.................................3 <br /> 4. CONFORMANCE TO APPENDIX A OF TRI-REGIONAL BOARD STAFF <br /> RECOMMENDATIONS: REQUEST FOR CLOSURE....................................................................4 <br /> 4.1 Checklist of Required Data for No Further Action Requests at Underground <br /> TankSites.................................................................................................................................4 <br /> 4.2 Required Documentation for No Further Action Required Request........................................4 <br /> 4.3 Conformance to Low Risk Vadose Zone Criteria....................................................................7 <br /> 5. CONCLUSION AND RECOMMENDATIONS.....................................................................................7 <br /> 6. REFERENCES ........................................................................................................................................8 <br /> FIGURES <br /> Figure 1 Site Vicinity Map <br /> Figure 2 Site Map with Geologic Trace <br /> Figure 3 Hydrocarbon Distribution in Soil <br /> Figure 4 Hydrocarbon Distribution in Groundwater <br /> Figure 5 Water Supply Well Search Map <br /> Figure 6 Geologic Cross-Sections A-A' and B-B' <br /> TABLES <br /> Table 1 Soil-Cumulative Analyses <br /> Table 2 Groundwater-Cumulative Analyses <br /> Table 3 Checklist of Required Data for No Further Action Requests at Underground Tank Sites <br /> Table 4 List of Technical Reports <br /> i <br /> APPENDICES <br /> Appendix A Regulatory Correspondence <br /> Appendix B Compact Disc of Previous Investigation Reports <br /> Appendix C Results of the Updated Health Screening Risk Evaluation(Geomatrix,2001)and Response <br /> to Comments—January 2,2002 Letter(Geomatrix,2002) <br /> Appendix D Soil and Groundwater Investigation Report and Well Survey(SAIC,2005) <br /> Appendix E Cross-Section Boring Logs <br /> Appendix F IDW Documentation <br /> i <br />