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Stantec <br /> Report of Findings for the Waterfront Towers Separate Phase Hydrocarbon Investigation <br /> and Unocal Extraction Well Pilot Study <br /> Waterfront Towers Parking Lot <br /> March 4, 2011 <br /> Table of Contents <br /> 4.11 GWE-1 AND GWE-2 CONCLUSIONS............................................................................4.13 <br /> 5.0 RECOMMENDATIONS...................................................................................................5.15 <br /> 6.0 LIMITATIONS.................................................................................................................6.16 <br /> LIST OF FIGURES <br /> Figure 1 Site Location Map <br /> Figure 2 Site Plan with Direct Push Borings and Unocal Extraction Wells <br /> Figure 3 Waterfront Towers Parking Lot CPT/UVOST Boring Locations <br /> LIST OF TABLES <br /> Table 1 Soil Analytical Data for DP-22 — Total Petroleum Hydrocarbons, BTEX, <br /> and MtBE <br /> Table 2 Two-Phase Extraction Operational Data <br /> Table 3 Groundwater Extraction with Submersible Pump - Operational Data <br /> Table 4 Soil Vapor Extraction Analytical Results <br /> Table 5 Groundwater Extraction Analytical Results and Mass Removal <br /> Table 6 Soil Vapor Extraction Mass Removal Results —TPHg <br /> Table 7 <br /> LIST OF ATTACHMENTS <br /> Appendix A Regulatory Correspondence <br /> Appendix B Field and Laboratory Procedures <br /> Appendix C Well Construction Permits <br /> Appendix D Boring Log (DP-22), CPT Logs, UVOST Logs, Field Notes, Well <br /> Construction Details, Well Development Logs <br /> Appendix E Certified Laboratory Analytical Reports and Chain-of-Custody <br /> Documentation for DP-22 <br /> Appendix F Waste Data Form <br /> Appendix G Dakota Technologies UVOST Models <br /> Appendix H GWE Pilot Study Field Notes <br /> Appendix I Certified Laboratory Analytical Reports and Chain-of-Custody <br /> Documentation for GWE Pilot Study <br /> Appendix J Stantec Survey Data <br /> Appendix K Geotracker Uploads <br /> TW Stockton SPH Assessment and UOU Pilot Test Report.FINAL.doc <br />