Port Phillip Bay Channel Deepening Supplementary Environment Effects Statement Appendix to the Report of the Inquiry Environment
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Environment Effects Act 1978 PORT PHILLIP BAY CHANNEL DEEPENING SUPPLEMENTARY ENVIRONMENT EFFECTS STATEMENT APPENDIX TO THE REPORT OF THE INQUIRY ENVIRONMENTAL ASSESSMENT REPORT Inquiry: Dr Allan Hawke Ms Kathryn Mitchell Dr Mike Lisle‐Williams 1 October 2007 Port Phillip Bay Channel Deepening Project Supplementary Environment Effects Statement Appendix to the Report of the Inquiry: 1 October 2007 PORT PHILLIP BAY CHANNEL DEEPENING PROJECT SUPPLEMENTARY ENVIRONMENT EFFECTS STATEMENT APPENDIX TO THE REPORT OF THE INQUIRY ENVIRONMENTAL ASSESSMENT Dr Allan Hawke, Chair Ms Kathryn Mitchell, Member Dr Mike Lisle‐Williams, Member 1 October 2007 Page 2 Port Phillip Bay Channel Deepening Project Supplementary Environment Effects Statement Appendix to the Report of the Inquiry: 1 October 2007 TABLE OF CONTENTS PAGE NO. EXECUTIVE SUMMARY.......................................................................................................7 PART 1: BACKGROUND......................................................................................................8 1. INTRODUCTION................................................................................................9 1.1 THE INQUIRY ................................................................................................................9 1.2 TERMS OF REFERENCE ................................................................................................10 1.3 SITE VISITS ..................................................................................................................11 1.4 SUBMISSIONS AND HEARINGS....................................................................................11 1.5 APPROACH TO REPORT ..............................................................................................16 1.6 THE ROLE OF THE INQUIRY ........................................................................................17 1.7 ADDITIONAL INFORMATION ......................................................................................19 2. THE PROPOSAL ................................................................................................21 2.1 WHAT IS PROPOSED?..................................................................................................21 2.2 BACKGROUND ............................................................................................................23 2.3 THE ALLIANCE ...........................................................................................................26 3. LEGISLATIVE AND POLICY FRAMEWORK ............................................27 3.1 STATE LEGISLATION ...................................................................................................27 3.2 STATE GOVERNMENT POLICY ....................................................................................31 3.3 COMMONWEALTH LEGISLATION...............................................................................36 4. COMMUNITY CONSULTATION .................................................................38 PART 2: CHANNEL DESIGN AND DREDGING............................................................43 5. CHANNEL DESIGN...........................................................................................44 5.1 DESCRIPTION AND KEY ISSUES ..................................................................................44 5.2 INQUIRY RESPONSE ....................................................................................................46 5.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS .................................................61 6. DREDGING TECHNOLOGY SELECTION .................................................62 6.1 DESCRIPTION AND KEY ISSUES ..................................................................................62 6.2 INQUIRY RESPONSE ....................................................................................................68 Page 3 Port Phillip Bay Channel Deepening Project Supplementary Environment Effects Statement Appendix to the Report of the Inquiry: 1 October 2007 6.3 INQUIRY CONCLUSIONS .............................................................................................71 7. DREDGING STRATEGY .................................................................................72 7.1 DESCRIPTION AND KEY ISSUES ..................................................................................72 7.2 INQUIRY RESPONSE ....................................................................................................73 7.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS .................................................78 8. DREDGED MATERIAL MANAGEMENT....................................................80 8.2 INQUIRY RESPONSE ....................................................................................................81 8.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................105 PART 3: ENVIRONMENTAL IMPACTS AND EFFECTS ............................................110 9. HYDRODYNAMICS .......................................................................................111 9.1 DESCRIPTION AND KEY ISSUES ................................................................................111 9.2 INQUIRY RESPONSE ..................................................................................................112 9.3 INQUIRY CONCLUSIONS ...........................................................................................120 10. SEDIMENT TRANSPORT AND COASTAL PROCESSES......................122 10.1 DESCRIPTION AND KEY ISSUES ................................................................................122 10.2 INQUIRY RESPONSE ..................................................................................................124 10.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................129 11. LIGHT, PRODUCTIVITY, TURBIDITY, SEDIMENTATION ................130 11.1 DESCRIPTION AND KEY ISSUES ................................................................................130 11.2 INQUIRY RESPONSE ..................................................................................................131 11.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................139 12. NUTRIENT CYCLING....................................................................................141 12.1 DESCRIPTION AND KEY ISSUES ................................................................................141 12.2 INQUIRY RESPONSE ..................................................................................................142 12.3 INQUIRY CONCLUSIONS ...........................................................................................150 13. PENGUINS.........................................................................................................152 13.1 DESCRIPTION AND KEY ISSUES ................................................................................152 13.2 INQUIRY RESPONSE ..................................................................................................152 13.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................158 14. FISH AND FISHERIES ....................................................................................159 Page 4 Port Phillip Bay Channel Deepening Project Supplementary Environment Effects Statement Appendix to the Report of the Inquiry: 1 October 2007 14.1 DESCRIPTION AND KEY ISSUES ................................................................................159 14.2 INQUIRY RESPONSE ..................................................................................................160 14.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................169 15. LISTED AQUATIC SPECIES..........................................................................171 15.1 DESCRIPTION AND KEY ISSUES ................................................................................171 15.2 INQUIRY RESPONSE ..................................................................................................172 15.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................176 16. TERRESTRIAL ECOLOGY .............................................................................177 16.1 DESCRIPTION AND KEY ISSUES ................................................................................177 16.2 INQUIRY RESPONSE ..................................................................................................177 16.3 INQUIRY CONCLUSIONS ...........................................................................................179 17. THE ENTRANCE ..............................................................................................180 17.1 DESCRIPTION AND KEY ISSUES ................................................................................180 17.2 INQUIRY RESPONSE ..................................................................................................181 17.3 INQUIRY CONCLUSIONS AND RECOMMENDATIONS ...............................................189 18. BENEFIT COST ANALYSIS AND ECONOMIC IMPACTS....................192 18.1 DESCRIPTION AND KEY ISSUES ................................................................................192 18.2 INQUIRY RESPONSE ..................................................................................................198 18.3 INQUIRY CONCLUSIONS ...........................................................................................206