Agreement No. CE
35/2006(CE)
Kai Tak Development
Engineering Study
cum Design and
Construction of Advance Works
– Investigation,
Design and Construction
Dredging Works for
Proposed Cruise Terminal at Kai Tak
Environmental
Impact Assessment Report
Contents
1.2 Purpose of this EIA Report
1.3 Objectives and Scope of the Schedule 2 EIA Study.
1.4 Relevant Approved EIA Reports
2............ PROJECT DESCRIPTION. 7
2.1 Development of Cruise Terminal and Site Constraints
2.2 The Need of Project and Scenario without the Project
2.5 Project Scope and Programme
2.6 Consideration of Alternatives and Development of Preferred Option
2.7 Siltation and Maintenance Dredging
2.9 Interaction with Other Projects
3............ AIR QUALITY Impact
3.2 Environmental Legislation,
Policies, Plans, Standards and Criteria
3.3 Description of the
Environment
3.4 Air Quality
Sensitive Receivers
3.5 Identification,
Prediction and Evaluation of Environmental Impacts
3.6 Mitigation of
Environmental Impacts
3.7 Residual
Environmental Impacts
3.8 Environmental
Monitoring and Audit
4.2 Environmental Legislation, Policies, Plans, Standards and Criteria
4.3 Project Description and Construction Activities
4.6 Identification of Environmental Impacts
4.7 Prediction and Evaluation of Environmental Impacts
4.8 Evaluation of Residual Environmental Impacts
4.9 Environmental Monitoring and Audit
5............ WATER QUALITY Impact
5.2 Water Quality Sensitive Receivers
5.3 Environmental Legislation, Policies, Plans, Standards and Criteria
5.4 Description of the Environment
5.5 Identification of Environmental Impacts
5.7 Uncertainties in Assessment Methodology
5.8 Prediction and Evaluation of Potential Environmental Impacts
5.9 Mitigation of Environmental Impacts
5.10 Evaluation of Residual Environmental Impacts
5.11 Environmental Monitoring and Audit
6............ WASTE MANAGEMENT Implications
6.2 Environmental Legislation, Policies, Plans, Standards and Criteria
6.5 Identification of Potential Sources of Environmental Impact
6.6 Prediction and Evaluation of Environmental Impacts
6.7 Mitigation of Environmental Impacts
6.8 Evaluation of Residual Environmental Impacts
7............ Impact on CULTURAL HERITAGE
7.2 Environmental Legislation and Standards
7.4 Results of Baseline Review
7.6 Removal of Gas Main & Submarine Outfall and Relocation of GMBs &
EQIA
7.7 Evaluation of Heritage Significance of Seawall
7.8 Mitigation of Environmental Impacts
7.9 Evaluation of Residual Environmental Impacts
7.10 Environmental Monitoring and Audit
8............ MARINE ECOLOGical IMpact
8.2 Environmental Legislation, Policies, Plans, Standards and Criteria
8.4 Description of the Environment
8.5 Identification of Environmental Impacts
8.6 Prediction and Evaluation of Environmental Impacts
8.7 Mitigation of Environmental Impacts
8.8 Evaluation of Residual Environmental Impacts
8.9 Evaluation of Cumulative Environmental Impacts
8.10 Environmental Monitoring and Audit
9............ FISHERIES Impact
9.2 Environmental Legislation, Standards and Guidelines
9.4 Description of the Environment
9.5 Identification, Prediction and Evaluation of Environmental Impacts
9.6 Mitigation of Environmental Impacts
9.7 Evaluation of Residual Environmental Impacts
9.8 Evaluation of Cumulative Environmental Impacts
9.9 Environmental Monitoring and Audit
10.......... Environmental Monitoring and Audit
Requirements
10.5 Waste Management Implications
10.6 Impact on Culture Heritage
11.5 Waste Management Implications
11.6 Impact on Culture Heritage
12.......... IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES
13.......... Summary of Environmental Outcomes
List of Tables
Table 2.2 Approximate
Volume of Dredging from the Existing Seawall
Table 3.1 Hong
Kong Air Quality Objectives
Table 3.3 Details of
Representative Air Sensitive Receivers for the Stage 2 Dredging
Table 5.1
Summary of Water Quality Objectives for Victoria Harbour WCZ
Table 5.2 Summary of
Water Quality Objectives for Eastern Buffer WCZ
Table 5.3 Summary of
Water Quality Objectives for Junk Bay WCZ
Table 5.4 WSD’s Water
Quality Criteria for Flushing Water at Sea Water Intakes
Table 5.5 Sediment
Quality Criteria for the Classification of Sediment
Table 5.6 Summary
Statistics of 2005 Marine Water Quality in Victoria Harbour
Table 5.7 Summary
Statistics of 2005 Marine Water Quality in Junk Bay and Eastern Buffer
Table 5.9 Summary
Statistics of 2005 Bottom Sediment Quality
Table 5.10 Maximum
Production Rates – Scenario 1A (2010)
Table 5.11 Maximum
Dredging Rates - Scenario 1B (2013)
Table 5.12 Maximum
Dredging Rates - Scenario 1C (2013)
Table 5.12a Modelling
Scenario for Maintenance Dredging
Table 5.13 Summary of
Parameters for Sediment Plume Model (Delft3D-PART)
Table 5.14 Coastal
Developments Incorporated in the 2010 and 2013 Coastline Configurations
Table 5.15 Pollution
Loading from Stonecutters Sewage Treatment Works under HATS
Table 5.27 Deployment of
Silt Curtains - Locations of Applications under Capital Dredging
Table 5.31 Deployment of
Silt Screens - Locations of Applications under Capital Dredging
Table 6.1 Sediment
Quality Criteria for the Classification of Sediment
Table 6.2 Test
Species for Biological Testing
Table 6.3 Test
Endpoints and Decision Criteria for Biological Testing
Table 6.4 Sediment
Chemistry Results Showing Exceedances (from Sub-area A of Marine SI)
Table 6.5 Sediment
Chemistry Results Showing Exceedances (from Sub-area B of Marine SI)
Table 6.6 Results
of Biological Screening of Category M Samples
Table 6.7 Disposal
Options for the Identified Contaminated Sediment
Table 6.8 Volume
of Sediment Requiring Different Disposal Options (in m3)
Table 6.9 Summary
of Waste Handling Procedures and Disposal Routes
Table 8.1 Criteria
and Evaluation of Ecological Importance of Marine Habitats in the Project Area
Table 8.2 Evaluation
of Ecological Impacts on Marine Resources
Table 9.1 Recent Hong
Kong Capture Fisheries Industry Figures
Table 9.2 Summary of
Capture Fisheries Data in Assessment Area by Vessels < 15m
Table 9.3 Recent Hong Kong
Culture Fisheries Industry Figures
Table 11.1 Summary of
Environmental Impacts Associated with the Project
Table 12.1 Implementation
Schedule for Air Quality Measures
Table 12.2 Implementation
Schedule for Noise Measures
Table 12.3 Implementation
Schedule for Water Quality Measures
Table 12.4 Implementation
Schedule for Waste Management Measures
Table 12.5 Implementation
Schedule for Cultural Heritage Measures
Table 12.6 Implementation
Schedule for Marine Ecology Measures
Table 12.7 Implementation
Schedule for Fisheries Measures
Table 13.1 Summary of Key
Environmental Outcomes / Benefits
List of Figures
Figure 1.1 Preliminary Outline Development Plan
Figure
2.1 General
Layout of Proposed Cruise Terminal Berths
Figure
2.2 Proposed
Phase I Berth Arrangement for Cruise Terminal
Figure
2.3 Proposed
Longer Term Arrangement for Cruise Terminal
Figure
2.4a Dredging
Zones for the Cruise Terminal
Figure
2.4 Staged
Dredging Requirements for the Cruise Terminal
Figure
2.4b Extent
of Submarine Outfall Dredging
Figure
2.5 Existing
Sea Bed Levels within the Study Area
Figure
2.6 Deck
Option 1 (Pile Deck)
Figure
2.7 Deck
Option 2 (Caission)
Figure
2.8 Deck
Option 3 (Block Work Wall with Wave Absorbing Chamber)
Figure
2.9 Deck
Option 4 (Bored Pile Wall with Anchor)
Figure
2.10 Deck
Option 5 (Precast R.C. Counterfort)
Figure
2.11 Deck
Option 6 (Sheet Pile Cofferdam)
Figure
2.12 Concurrent
Marine Projects within Kai Tak Development Area
Figure
3.1 Air
Quality Assessment Area (Stage 1)
Figure
3.2 Air
Quality Assessment Area (Stage 2)
Figure
4.1A Noise
Assessment Area
Figure
4.1 Works
Area and Noise Assessment Points
Figure
5.1 Locations
of Water Control Zones
Figure
5.2 Locations
of Water Quality Sensitive Receivers
Figure
5.3 Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1A – Unmitigated
Figure
5.4 Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1B – Unmitigated
Figure
5.5 Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1C – Unmitigated
Figure
5.6 Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1A – Mitigated
Figure
5.7 Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1B – Mitigated
Figure
5.8 Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1C – Mitigated
Figure
5.8A Sediment
Loss Rate for Dredging and Sand Filling Activities – Scenario 1D
Figure
5.9 Coastline
Configuration for 2010 and 2013
Figure
5.10a Indicative
Silt Curtain Arrangement
Figure
5.10b Indicative
Silt Screen Arrangement
Figure
6.1 Locations
of Contaminated Sediment
Figure
7.1 Areas
Covered by Previous MAI and Existing Utilities
Figure
8.1 Marine
Ecological Survey Locations
Figure
8.3 Location
of Hard Substrata Sea Area within Dredging Site
Figure
8.4 Proposed
Coral Recipient Site in Junk Bay
List of Appendices
Appendix 2.1 Concurrent Projects
Appendix 2.1A As-built Drawings of Kai Tak Runway
Submarine Outfall
Appendix 4.1 Construction Noise Impact
Assessment
Appendix 4.2 Noise Assessment for Maintenance
Dredging
Appendix 4.3 Confirmation of the Plant
Inventory
Appendix 5.1 Grid Layout and Model Coverage
Appendix 5.2 Mathematic Expressions for Pile
Frictions
Appendix 5.2a Relevant Information on SEK Model
Calibration
Appendix 5.3 Methodology for Compiling the
Pollution Loading Inventory
Appendix 5.4 Sediment Plume Model Results –
Scenario 1A – Wet Season
Appendix 5.5 Sediment Plume Model Results –
Scenario 1A – Dry Season
Appendix 5.6 Sediment Plume Model Results –
Scenario 1B – Wet Season
Appendix 5.7 Sediment Plume Model Results –
Scenario 1B – Dry Season
Appendix 5.8 Sediment Plume Model Results –
Scenario 1C – Wet Season
Appendix 5.9 Sediment Plume Model Results –
Scenario 1C – Dry Season
Appendix 5.10 Sediment Plume Model Results (with KTD works
only) – Scenario 1A – Wet Season
Appendix 5.11 Sediment Plume Model Results (with KTD works
only) – Scenario 1A – Dry Season
Appendix 5.12 Sediment Plume Model Results (with KTD works
only) – Scenario 1B – Wet Season
Appendix 5.13 Sediment Plume Model Results (with KTD works
only) – Scenario 1B – Dry Season
Appendix 5.14 Sediment Plume Model Results (with KTD works
only) – Scenario 1C – Wet Season
Appendix 5.15 Sediment Plume Model Results (with KTD works
only) – Scenario 1C – Dry Season
Appendix 5.15A Maximum Dimension of Mixing Zone for SS Elevation
Appendix 5.16 Tracer Model Results – Scenario 1A
Appendix 5.17 Tracer Model Results – Scenario 1B
Appendix 5.18 Tracer Model Results – Scenario 1C
Appendix 6.1a ETWB TCW No. 31/2004
Appendix 6.1 Endorsed RSSP Rev2
Appendix 6.2 Sediment Quality Report
Appendix 7.1 Archaeological Monitoring Brief
for Kai Tak Dredging
Appendix 8.1 Photographs of Different Marine
Environments in the Kai Tak Area
Appendix 8.2 Marine Ecological Survey -
Benthos
Appendix 8.3 Photographs of Intertidal
Habitats at each Surveyed Location in the Kai Tak Area
Appendix 8.4 Intertidal Fauna Recorded within
the Project Area
Appendix 8.5 Report on Spot-Check and Rapid
Ecological Assessment Survey
Appendix 11.1 Key Assessment Assumptions and Methodologies