Hong Kong Offshore Wind Farm in Southeastern Waters -

Contents

Reference: ESB-146/2006 Issue 2, March 2009

 

Executive Summary

Executive Summary - English

行政摘要 中文

 

Environmental Monitoring & Audit Manual

Environmental Monitoring & Audit Manual

                       

 

Main Text

1       Introduction                                                                

1.1    Background                                                           

1.2    Renewable Energy: The Need for the Project      

1.3    Overview of Global Wind Energy                          

1.4    Stakeholder Consultation for the Proposed Project 

1.5    EIA Study Objectives                                             

1.6    EIA Study Report Structure                                   

 

2       Project Description                                                   

2.1    Project Components                                             

2.2    Site Selection Process                                          

2.3    Site Selection Results                                           

2.4    Site Refinement and Layout                                  

2.5    Transmission Cable Routing                                

2.6    The Baseline Site and Alternative Site Design      

2.7    Construction Options and Method Selection        

2.8    Installation of Components                                    

2.9    Construction Program                                           

2.10  Offshore Construction Logistics                           

2.11  Operations and Maintenance                                

2.12  References                                                            

 

3       Waste & Materials Management                            

3.1    Introduction                                                            

3.2    Objectives                                                             

3.3    Legislation, Standards & Guidelines                     

3.4    Waste Management Impact Assessment            

3.5    Mitigation of Adverse Impacts                               

3.6    Assessment of Residual Impacts                         

3.7    Environmental Monitoring and Audit                      

3.8    Conclusion                                                            

3.9    References                                                            

 

4       Water Quality Impact Assessment                        

4.1    Introduction                                                            

4.2    Objectives                                                             

4.3    Legislation, Standards and Guidelines                  

4.4    Assessment Approach                                          

4.5    Baseline Conditions                                              

4.6    Evaluation Criteria                                                 

4.7    Construction Phase Impact Assessment             

4.8    Operational Phase Impact Assessment               

4.9    Impact Mitigation                                                    

4.10  Residual Impact Assessment                               

4.11  Environmental Monitoring & Audit Requirements 

4.12  Conclusions & Recommendations                       

4.13  References

        

5       Benthic Ecology                                                        

5.1    Introduction                                                            

5.2    Objectives                                                             

5.3    Legislation, Standards & Guidelines                     

5.4    Assessment Approach                                          

5.5    Ecological Baseline Profile – Literature Review   

5.6    Field Survey Results                                             

5.7    Construction Phase Impact Assessment             

5.8    Operational Phase Impact Assessment               

5.9    Cumulative Impacts                                              

5.10  Mitigation Measures & Best Practice                    

5.11  Residual Impact Assessment                               

5.12  Environmental Monitoring & Audit Requirements 

5.13  Conclusions & Recommendations                       

5.14  References

                                                                                        

6       Pelagic Ecology                                                         

6.1    Introduction                                                            

6.2    Objectives                                                             

6.3    Legislation, Standards & Guidelines                     

6.4    Assessment Approach                                          

6.5    Ecological Baseline Profile                                    

6.6    Construction Phase Impact Assessment             

6.7    Operational Phase Impact Assessment               

6.8    Mitigation Measures & Best Practice                    

6.9    Residual Impact Assessment                               

6.10  Environmental Monitoring & Audit Requirements 

6.11  Conclusions & Recommendations                       

6.12  References                                                            

 

7       Avifauna  S7 - 1

7.1    Introduction  S7 - 1

7.2    Objectives  S7 - 4

7.3    Legislation, Standards & Guidelines  S7 - 5

7.4    Assessment Approach  S7 - 5

7.5    Baseline Conditions and Sensitive Receivers – Desktop Study  S7 - 12

7.6    Baseline Conditions and Sensitive Receivers – Field Surveys  S7 - 24

7.7    Construction Phase Impact Assessment S7 - 66

7.8    Operation Phase Impact Assessment S7 - 66

7.9    Mitigation & Best Practices Measures  S7 - 77

7.10  Environmental Monitoring & Audit S7 - 78

7.11  Conclusions & Recommendations  S7 - 78

7.12  References  S7 - 79

 

8       Fisheries  S8 - 1

8.1    Introduction  S8 - 1

8.2    Objectives  S8 - 1

8.3    Legislation, Standards & Guidelines  S8 - 1

8.4    Assessment Approach  S8 - 2

8.5    Fisheries Baseline – Literature Review   S8 - 6 

8.6    Fishery Baseline – Field Surveys  S8 - 15

8.7    Construction Phase Impact Assessment S8 - 28 

8.8    Operational Phase Impact Assessment S8 - 30

8.9    Cumulative Impacts  S8 - 34

8.10  Mitigation Measures & Best Practice  S8 - 34

8.11  Residual Impact Assessment S8 - 35

8.12  Environmental Monitoring & Audit Requirements  S8 - 35

8.13  Conclusions & Recommendations  S8 - 35

8.14  References  S8 - 35

 

9       Cultural Heritage  S9 - 1

9.1    Introduction  S9 - 1

9.2    Objectives  S9 - 1

9.3    Legislation, Standards & Guidelines  S9 - 1

9.4    Assessment Approach  S9 - 2

9.5    Baseline Conditions  S9 - 3

9.6    Assessment Methodology  S9 - 11

9.7    Evaluation of Baseline Marine Archaeological Potential S9 - 13

9.8    Construction Phase Impact Assessment S9 - 18

9.9    Operation Phase Impact Assessment S9 - 20

9.10  Impact Mitigation and Best Practice Measures  S9 - 20

9.11  Residual Impacts  S9 - 22

9.12  Environmental Monitoring & Audit S9 - 22

9.13  Conclusion & Recommendations  S9 - 22

9.14  References  S9 - 23

 

10     Landscape & Visual Impacts  S10 - 1

10.1  Introduction  S10 - 1

10.2  Legislation, Standards & Guidelines  S10 - 2

10.3  Assessment Approach  S10 - 2

10.4  Review of Literature on the Appearance of Wind Turbines in the Landscape  S10 - 7

10.5  Baseline Conditions and Visual Sensitive Receivers  S10 - 12

10.6  Landscape Impact Assessment S10 - 17

10.7  Visual Impact Assessment S10 - 26

10.8  Conclusions  S10 - 43

10.9  References  S10 - 49

 

11     Environmental Mitigation Implementation Schedule  S11 - 1

11.1  Waste Management S11 - 1

11.2  Water Quality, Marine Ecology & Fisheries          

11.3  Cultural Heritage                                                    

11.4  Landscape & Visual

        

12     Summary    S12 - 1

12.1  Key Benefits of the Project S12 - 1

12.2  Technical Summaries  S1

12.3  Stakeholder Feedback                                          

12.4  Environmental Outcomes                                     

 


 

List of Tables

Table 2.1         Project Interaction Matrix

Table 2.2         Constraints Summary for the Short-listed Site Options

Table 2.3         Key Issues for Transmission Cable Landing Site Options

Table 2.4         Foundation & Substructure Options

Table 2.5         Summary of Foundation & Substructure Options

Table 2.6         Anticipated Construction Vessel Types

Table 2.7         Number of Anticipated Vessel Movements from Port to Site

Table 2.8         Estimated Numbers of Operational Workboats

Table 3.1         ETWB 34/2002 Criteria for Dredged Sediment Classification

Table 3.2         Routine Marine Sediment Quality Monitoring Data (EPD, 2003 – 2006)

Table 3.3         Sediment Quality in Junk Bay

Table 3.4         Preliminary Estimated Volume of Sediment & Disposal Option (m3)

Table 3.5         Chemical Screening Results for Nearshore Stations S1 - S3

Table 4.1         Summary of WQOs for Mirs Bay, Junk Bay, Eastern Buffer and Port Shelter Water Control Zones

Table 4.2         Water Supplies Department standards at Seawater Intakes

Table 4.3         Summary of Preferred Foundation and Substructure Options

Table 4.4         Worst-case Scenarios

Table 4.5         Summary Statistics of Marine Water Quality in Junk Bay WCZ between 2002 and 2006

Table 4.6         Summary Statistics of Marine Water Quality in Mirs Bay WCZ between 2002 and 2006

Table 4.7         Summary Statistics of Marine Water Quality in Port Shelter WCZ between 2002 and 2006

Table 4.8         Summary Statistics of Marine Water Quality in Eastern Buffer WCZ between 2002 and 2006

Table 4.9         Proposed Water Quality Assessment Criteria

Table 4.10        Proposed Assessment Criteria for Heavy Metals/Trace Organics

Table 4.11        Predicted Increases in SS (in mg/L) – Scenario 1 (Unmitigated Scenario)

Table 4.12        Predicted Increases in SS (mg/L) – Scenario 2 (Unmitigated Scenario)

Table 4.13        Predicted Increases in SS (mg/L) – Scenario 3  (Unmitigated Scenario)

Table 4.14        Predicted Increases in SS (in mg/L) – Scenario 4 (Unmitigated Scenario)

Table 4.15        Predicted Increases in SS (in mg/L) – Scenario 5 (Unmitigated Scenario)

Table 4.16        Highest Arsenic Concentrations at Sediment Sampling Locations S1 to S7 and Required Dilution Rates

Table 4.17        Predicted Dilution Rates at Selected WSRs

Table 4.18        Calculated Arsenic Concentrations (mg/L)  at Selected WSRs

Table 4.19        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Dry Season – Scenarios 1 to 5 (Unmitigated Scenarios)

Table 4.20        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Wet Season – Scenarios 1 to 5 (Unmitigated Scenarios)

Table 4.21        Predicted Depletion in DO due to Maximum Increase in SS Concentrations (in mg/L) – Dry Season (Unmitigated Scenarios)

Table 4.22        Predicted Depletion in DO due to Maximum Increase in SS Concentrations (in mg/L) – Wet Season (Unmitigated Scenarios)

Table 4.23        Resulting DO due to Maximum Increase in SS Concentrations (in mg/L) – Dry and Wet Season (Unmitigated Scenarios)

Table 4.24        Predicted Cumulative Impact Results (Unmitigated Scenario)

Table 4.25        Predicted Velocities at Monitoring Points (H1 to H7) in the Dry Season

Table 4.26        Predicted Velocities at Monitoring Points (H1 to H7) in the Wet Season

Table 4.27        Predicted Increases in SS (in mg/L) – Scenario 1 (Mitigated Scenario)

Table 4.28        Predicted Increases in SS (mg/L) – Scenario 2 (Mitigated Scenario)

Table 4.29        Predicted Increases in SS (mg/L) – Scenario 3 (Mitigated Scenario)

Table 4.30        Predicted Increases in SS (in mg/L) – Scenario 4

Table 4.31        Predicted Increases in SS (in mg/L) – Scenario 5

Table 4.32        Summary of Mitigation Measures for Scenarios 1 to 5

Table 4.33        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Dry Season – Scenarios 1 to 5 (Mitigated Scenario)

Table 4.34        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Wet Season – Scenarios 1 to 5 (Mitigated Scenario)

Table 4.35        Predicted Depletion in DO due to Maximum Increase in SS Concentrations (in mg/L) – Dry Season (Mitigated Scenarios)

Table 4.36        Predicted Depletion in DO due to Maximum Increase in SS Concentrations (in mg/L) – Wet Season (Mitigated Scenarios)

Table 5.1         Key Biodiversity Indicators for the Study Area from CityU 2002

Table 5.2         Coral / Epifauna Survey Locations

Table 5.3         Characteristics of Benthic Infauna Sampling Stations

Table 5.4         Summary of species, individuals and biomass recorded at each station in wet and dry season surveys

Table 5.5         Univariate statistics for the infauna community (CityU, 2007)

Table 5.6a       Ecological Evaluation of Seawall Habitat

Table 5.6b       Ecological Evaluation of Rocky Shore

Table 5.6c       Ecological Evaluation of Silty Seabed Habitat

Table 5.6d       Ecological Evaluation of Rocky Pinnacle

Table 5.7         Specific Habitat Evaluation of EIA Study Baseline Survey Locations

Table 5.8         Predicted Suspended Sediment concentrations (in mg/L) at representative Coral Sensitive Receivers: Unmitigated Scenario

Table 5.9         Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Dry Season – Unmitigated Scenarios 1 to 5

Table 5.10        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Wet Season – Unmitigated Scenarios 1 to 5

Table 5.11        Predicted Suspended Sediment concentrations (in mg/L) at representative Coral Sensitive Receivers: Mitigated Scenario

Table 5.12        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Dry Season – Mitigated Scenarios 1 to 5

Table 5.13        Predicted Sediment Deposition Rates (in g/m2/day) at Coral Communities in Wet Season – Mitigated Scenarios 1 to 5

Table 6.1         Confirmed Non-Resident Cetacean Sighting Records

Table 6.2         Summary of Marine Mammal Observations

Table 6.3         Reef-Associated Fish Species around the Ninepins

Table 6.4         Shark, Ray & Skates in HKSAR Waters

Table 6.5         Predicted Suspended Sediment concentrations (in mg/L) at representative pelagic receivers: Unmitigated Scenario

Table 7.1         Summary of Boat-based Survey, Aerial Surveys and Radar Surveys with Regard to Advantages and Limitations

Table 7.2         Configuration of the Proposed Turbine Options

Table 7.3         Determination of Ornithological Significance

Table 7.4         Determination of Magnitude of Effects on Birds

Table 7.5         Matrix of Magnitude and Sensitivity for Determination of Impact Significance

Table 7.6         Migratory and Visitor Seabird Species in Hong Kong

Table 7.7         Summary of Numbers of Seabirds Recorded in HKBWS Seabird Survey in Spring 2006 (HKWBS, 2006)

Table 7.8         Minimum Number of Adults and Fledged Juveniles of Black-naped Tern Sterna sumatrana, Bridled Tern Sterna anaethetus, and Roseate Tern Sterna dougallii recorded between 1993 – 1997 at the East Ninepin by HKBWS (Carey et al, 2001

Table 7.9         Available Results of On-going Breeding Tern Surveys in SE Waters of Hong Kong Conducted by HKBWS (Extracted from HKBWS's website)

Table 7.10        Summary of the Results of WBSE Breeding Site Survey in SE Waters Between 2002/03 and 2006/07 (AFCD unpublished data)

Table 7.11        Dates of Boat-based Surveys Undertaken in the Study Area Between May 2006 and December 2007.

Table 7.12        Total Counts of Bird Species Recorded during Boat-based Surveys within the Study Area (the proposed wind farm area (WF) with 0.5km, 1km and 2km buffers) for Scenario A

Table 7.13        Total Counts of Bird Species Recorded during Boat-based Surveys within the Study Area (the proposed wind farm area (WF) with 0.5km, 1km and 2km buffers) for Scenario B

Table 7.14        The Peak Daily Counts of Bird Species Recorded during Boat-based Surveys within the Study Area (the proposed wind farm (WF) with 0.5km, 1km and 2km buffers) for Scenario A

Table 7.15        The Peak Daily Counts of Bird Species Recorded during Boat-based Surveys within the Study Area (the proposed wind farm (WF) with 0.5km, 1km and 2km buffers) for Scenario B

Table 7.16        Flight Height Categories for Scenario A and Scenario B

Table 7.17        Number of Birds Observed at Each Flight Height Category within the Survey Area between May 2006 and December 2007 for Scenario A

Table 7.18        Number of Birds Observed at Each Flight Height Category within the Survey Area between May 2006 and December 2007 for Scenario B

Table 7.19        Number of Birds Observed Under Each Behavioural Category with the Study Area between May 2006 and May 2007

Table 7.20        Summary of Residential Status and Conservation Status of Bird Species Recorded in the Survey Area

Table 7.21        Species of Local and /or Regional Conservation Concern and Their Abundance and Distribution in the Study Area (Data between May 2006 and December 2007)

Table 7.22        Collision Rates of Black-naped Tern in Both the Worst Case and the Typical Condition for Scenario A

Table 7.23        Collision Rates of Black-naped Tern in Both the Worst Case and the Typical Condition for Scenario B

Table 7.24        Collision Rates of Bridled Tern in Both the Worst Case and the Typical Condition for Scenario A

Table 7.25        Collision Rates of Bridled Tern in Both the Worst Case and the Typical Condition for Scenario B

Table 7.26        Collision Rates of Red-necked Phalarope in Both the Worst Case and the Typical Condition for Scenario A

Table 7.27        Collision Rates of Red-necked Phalarope in Both the Worst Case and the Typical Condition for Scenario B

Table 7.28        Collision Rates of Cattle Egret in Both the Worst Case and Typical Conditions for Scenario A

Table 7.29        Collision Rates of Cattle Egret in Both the Worst Case and Typical Conditions for Scenario B

Table 7.30        Collision Rates of Aleutian Tern in Both the Worst Case and Typical Conditions for Scenario A

Table 7.31        Collision Rates of Aleutian Tern in Both the Worst Case and Typical Conditions for Scenario B

Table 7.32        Collision Rates of White-winged Black Tern in Both the Worst Case and Typical Conditions for Scenario A

Table 7.33        Collision Rates of White-winged Black Tern in Both the Worst Case and Typical Conditions for Scenario B

Table 7.34        Collision Rates of Black-tailed Gull in Both the Worst Case and Typical Conditions for Scenario A

Table 7.35        Collision Rates of Black-tailed Gull in Both the Worst Case and Typical Conditions for Scenario B

Table 8.1         Typical Trawling Speed

Table 8.2         Typical Vessel Sizes

Table 8.3         Top 10 Most Commonly Caught Species

Table 8.4         Fishing Activity Ranking

Table 8.5         Fishing Activity in the Selected Fishing Areas

Table 8.6         Fisheries Productivity Ranking

Table 8.7         Fish Productivity across the Study Area

Table 8.8         Productivity of Top HKSAR Species in the Study Area

Table 8.9         Summary of Fish Culture Zones in the Study Area

Table 8.10        Indicative species value ranking system

Table 8.11        Value of common catch from Shau Kei Wan

Table 8.12        Predicted suspended sediment concentrations (in mg/L) at representative fisheries receivers: Unmitigated Scenario

Table 8.13        Mixing zone radii for marine construction activities

Table 9.1         Description of Selected Boreholes

Table 9.2         Matrix of Impact Significance

Table 9.3         Targets with Archaeological Potential in the Wind Farm Area

Table 9.4         Targets with Archaeological Potential along the Cable Route

Table 9.5         Distance Separation of Targets from Works Areas

Table 10.1        Relationship between Receptor Sensitivity and Impact Magnitude in Defining Impact Significance

Table 10.2        Proposed (Pre) Construction Phase Landscape and Visual Mitigation Measures

Table 10.3        Proposed Operational Phase Landscape and Visual Mitigation Measures

Table 10.4        Significance of Landscape Impacts in (Pre) Construction and Operational Phases (Negative Impacts unless otherwise stated)

Table 10.5        Significance of Visual Impacts in the (Pre) Construction and Operational Phases (Note: All impacts negative unless otherwise noted)

Table 12.1        Incorporation of Stakeholder Feedback into EIA

 

List of Figures

Figure 1.1        Percentage of Low-visibility Days in the HKSAR

Figure 1.2        Trends in Globally Installed Wind Power

Figure 2.1        Components of a Typical Offshore Wind Farm

Figure 2.2        Configuration of a Wind Turbine on a 4 legged jacket foundation

Figure 2.3        Inside a Typical Wind Turbine Nacelle

Figure 2.4        Typical 132kV Cable Cross Section

Figure 2.5        HKSAR Waters

Figure 2.6        HKSAR Constraints Map with 2km Buffer Zone

Figure 2.7        Marine Traffic Designations

Figure 2.8        Indicative Marine Traffic Density in the HKSAR

Figure 2.9        Other Existing Marine Constraints I

Figure 2.10      Future Marine Constraints

Figure 2.11      Existing Submarine Pipelines & Cables

Figure 2.12      Water Depth

Figure 2.13      Ecological Sensitive Receivers

Figure 2.14      Potential HKSAR Sites for Offshore Wind Farm Development

Figure 2.15      3MW Turbine at Kentish Flats Wind Farm, UK

Figure 2.16      Site Layout 1, March 2006

Figure 2.17      Site Layout 2, June 2006

Figure 2.18      Final Site Layout

Figure 2.19      Transmission Cable Landing Options

Figure 2.20a     Typical Cable Connection Pit

Figure 2.20b     Proposed Cable Landing Site at Tseung Kwan O

Figure 2.21      Consolidated Constraints

Figure 2.22      Available Cable Corridors

Figure 2.23      Available Cable Alignments

Figure 2.24      Transmission Cable Route

Figure 2.25      Transmission Cable Route on entry to Tseung Kwan O

Figure 2.26      The Baseline Wind Farm Site and Cable Route Alignment

Figure 2.27      Location of the Proposed Geopark and Wind Farm Features

Figure 2.28      Alternative Wind Farm Site Design

Figure 2.29      Foundation & Substructure Elements

Figure 2.30      Pile Foundations

Figure 2.31      Suction Caissons Foundations

Figure 2.32      Gravity Base Foundation

Figure 2.33      (a) Monopile Concept and (b) with Caisson

Figure 2.34      (a) 3-leg tripod with piles / caisson and (b) 4-leg Jacket

Figure 2.35      Wet Tow and Self-Installation of a Tripod Substructure using Suction Caisson Foundation

Figure 2.36a     Suction Caisson Installation Steps

Figure 2.36b     Suction Caisson Installation in Hong Kong

Figure 2.37      Turbine Installation from a Heavy Lift Vessel

Figure 2.38      Extent of Rock Anchor Protection

Figure 2.39      Typical Rock Protection for Large Anchor Protection

Figure 2.40      Typical Concrete Cover

Figure 2.41      Preliminary Construction Schedule

Figure 2.42      Example of Offshore Work Support Boats

Figure 3.1        Indicative Dredging Zone for Cable Anchor Protection

Figure 3.2        Schematic of Rock Armour Protection

Figure 3.3        Locations of Sediment Sampling Stations

Figure 4.1        Sediment Release Point Locations for the Worst-case Scenarios

Figure 4.2        Potential Coral Translocation Sites in Junk Bay

Figure 4.3        Water Sensitive Receivers

Figure 4.3a      Water Sensitive Receivers (zoom in west)

Figure 4.3b      Water Sensitive Receivers (zoom in east)

Figure 4.4        Schematic Representation of the Arrangement of the Sampling Stations

Figure 4.5        In-situ Turbidity at S1, S2 & S3

Figure 4.6        Suspended Solids at S2 & S3

Figure 4.7        Time Series Plots for Increase in SS – Scenario 1

Figure 4.8        Time Series Plots for Increase in SS – Scenario 2

Figure 4.9        Time Series Plots for Increase in SS – Scenarios 3

Figure 4.10      Time Series Plots for Increase in SS – Scenarios 4 & 5

Figure 4.11      Sediment Sampling Locations

Figure 4.12      Arrangement of Silt Curtain

Figure 4.13      Monitoring Points and Sections Locations

Figure 4.14a     Accumulated Flows at S1 – Dry Season

Figure 4.14b     Accumulated Flows at S2 – Dry Season

Figure 4.14c     Accumulated Flows at S3 – Dry Season

Figure 4.14d     Accumulated Flows at S4 – Dry Season

Figure 4.14e     Accumulated Flows at S5 – Dry Season

Figure 4.15a     Accumulated Flows at S1 – Wet Season

Figure 4.15b     Accumulated Flows at S2 – Wet Season

Figure 4.15c     Accumulated Flows at S3 – Wet Season

Figure 4.15d     Accumulated Flows at S4 – Wet Season

Figure 4.15e     Accumulated Flows at S45– Wet Season

Figure 4.16      Oil Spillage Spreading Pattern over 4-Hour Period – Dry Season

Figure 4.17      Oil Spillage Spreading Pattern over 4-Hour Period – Wet Season

Figure 4.18      Cable Section where Jetting Speed will be Reduced

Figure 4.19      Contour Plots for Elevated SS in Dry & Wet Seasons – Scenario 1 (Mitigated Scenario)

Figure 4.20      Zoom-in Contour Plots for Elevated SS in Dry & Wet Seasons – Scenario 1 (Mitigated Scenario)

Figure 4.21      Contour Plots for Elevated SS in Dry & Wet Season – Scenario 2 (Mitigated Scenario)

Figure 4.22      Contour Plots for Elevated SS Level in Dry & Wet Season - Scenario 3 (Mitigated Scenario)

Figure 4.23      Zoom-in Contour Plots for Elevated SS in Dry & Wet Season - Scenario 3 (Mitigated Scenario)

Figure 4.24      Contour Plots for Elevated SS in Dry & Wet Season – Scenario 4 (Mitigated Scenario)

Figure 4.25      Contour Plots for Elevated SS in Dry & Wet Season – Scenario 5 (Mitigated Scenario)

Figure 5.1        General Bathymetric Zonation of the Study Area

Figure 5.2        Distribution of Key Coral Communities in the Study Area

Figure 5.3        Historic Sampling Locations in Eastern Waters from CityU 2002

Figure 5.4        Distribution of Amphioxus in Eastern Waters from CityU 2002

Figure 5.5        Distribution of Coral / Epifauna Survey Stations

Figure 5.6        Habitat Map in the Study Area

Figure 5.7        Anthogoria at Chiu Keng Wan

Figure 5.8        Epifauna Community at Fat Tong Chau

Figure 5.9        Epifauna Community at Tung Lung Chau West

Figure 5.10      Paraminabea Lobate Orange SP1 at South Ninepins

Figure 5.11      Paraminabea SP3 at East Ninepins

Figure 5.12      Muricella at One Foot Rock

Figure 5.13      Paraminabea at Victor Rock

Figure 5.14      Scleronephthya at Basalt Island

Figure 5.15      Typical Marine Environment at the Windfarm Site

Figure 5.16      Distribution of Infauna Survey Stations

Figure 5.17      Epifauna Community at South China Sea Oil Rig Structure

Figure 6.1        The Boat Transect Route for Marine Mammal Survey

Figure 6.2        Seasonal Distribution of Indo-Pacific Hump-Backed Dolphins

Figure 6.3        Seasonal Distribution of Finless Porpoises

Figure 6.4        AFCD Marine Mammal Survey Transect Routes

Figure 6.5        Finless Porpoise Sighting Records in the HKSAR, 1996-2005

Figure 6.6        Temporal Trend of Biennial Encounter Rates of Finless Porpoises in Summer Months in Each Eastern Survey Area

Figure 6.7        False Killer Whale Pseudorca crassidens observed in May 2007

Figure 6.8        Marine Mammal Sighting Locations, 2006/2007 Survey

Figure 6.9        Ichthyoplankton Survey Locations

Figure 6.10      Trawl and Gillnet Fish Survey Locations

Figure 6.11      Underwater Noise from a 1.5 MW Turbine

Figure 6.12      Harbour porpoise density at Horns Rev Wind Farm

Figure 7.1        Desktop Study Area for Ecological Impact Assessment

Figure 7.2        Field Survey Area for Avifauna Impact Assessment (Scenario A)

Figure 7.3        Field Survey Area for Avifauna Impact Assessment (Scenario B)

Figure 7.4        The Impact Assessment Area(s) for Avifauna (Scenario A)

Figure 7.5        The Impact Assessment Area(s) for Avifauna (Scenario B)

Figure 7.6        Survey Route of the Seabird Migration Survey in S and SE Hong Kong Waters in Spring 2006 Conducted by HKBWS (HKWBS, 2006)

Figure 7.7        Breeding Tern Colonies Documented in SE Waters of Hong Kong

Figure 7.8        Locations of Sighting Records of WBSE from November 2001 to July 2007 (AFCD unpublished data)

Figure 7.9        WBSE Nest Locations in SE Waters of Hong Kong (Scenario A)

Figure 7.10      WBSE Nest Locations in SE Waters of Hong Kong (Scenario B)

Figure 7.11      Fixed Transect Route for Boat-based Survey (Scenario A)

Figure 7.12      Transect Route for Boat-based Survey (Scenario B)

Figure 7.13      Distribution by Behaviour of Black-naped Tern between May 2006 and December 2007

Figure 7.14      Distribution by Behaviour of Bridled Tern between May 2006 and December 2007

Figure 7.15      Distribution by Behaviour of Pacific Swift between May 2006 and December 2007

Figure 7.16      Distribution by Behaviour of Red-necked Phalarope between May 2006 and December 2007

Figure 7.17      Distribution by Behaviour of Aleutian Tern between May 2006 and December 2007

Figure 7.18      Distribution by Behaviour of Little Swift between May 2006 and December 2007

Figure 7.19      Distribution of WBSE

Figure 7.20      Distribution of Black-naped Tern

Figure 7.21      Distribution of Bridled Tern

Figure 7.22      Distribution of Roseate Tern

Figure 7.23      Distribution of Red-necked Phalarope

Figure 7.24      Distribution of Aleutian Tern

Figure 7.25      Distribution of White-winged Black Tern

Figure 7.26      Distribution of Black-tailed Gull

Figure 7.27      Distribution of Cattle Egret

Figure 8.1        Field Survey Study Area – Marine Traffic Radar Data Coverage

Figure 8.2        Boat-Based Observation Locations

Figure 8.3        Number of Fishing Vessels (1967 and 2001 – 2006)

Figure 8.4        Number of Fishermen (1967 and 2001 – 2006)

Figure 8.5        Composition of Fishing Fleet (AFCD, 2001 – 2007)

Figure 8.6        Fishing Areas based on Port Survey 1996/1997

Figure 8.7        Fishing Areas based on Port Surveys 2001/2002 and 2006

Figure 8.8        Mariculture Zone Locations

Figure 8.9        Trawl Marks at the proposed Wind Farm

Figure 8.10      Trawl Marks in Tathong Channel

Figure 8.11      Fishing Intensity in the Study Area

Figure 8.12      Overall Distribution of Fishing Vessels (January – July 2007)

Figure 8.13      Trawler Fishing Intensity (January – July 2007)

Figure 8.14      Non-Trawl Fishing Intensity (January – July 2007)

Figure 8.15      Homeports of Interviewed Boat Captains

Figure 8.16a     Fishing gear operated by Homeport

Figure 8.16b     Fishing Gear of Interviewed Captains

Figure 8.17      General fishing grounds

Figure 8.18      Primary Fishing Ground of the Interviewed Fishers

Figure 8.19      Commonly caught species by all respondents

Figure 8.20      Criteria for selection of primary fishing ground(s)

Figure 8.21      Threats to the local fishing industry

Figure 8.22      Fish aggregation at an oil platform in the South China Sea

Figure 9.1        Borehole Record Locations

Figure 9.2        Locations of Shipwrecks in the Assessment Area

Figure 9.3        Side-Scan Sonar Survey Transect

Figure 9.4        Marine Geophysical Survey Arrangement

Figure 9.5        Location of Targets with Marine Archaeological Potential

Figure 9.6        Tentative Turbine Locations and Array Cable Alignment

Figure 9.7        Re-routed Array Cable near Target A1

Figure 10.1a     Study on the South East New Territories Development Strategy Review ‘Landscape and Conservation Framework’ – 3MW Option

Figure 10.1b     Study on the South East New Territories Development Strategy Review ‘Landscape and Conservation Framework’ – 5MW Option

Figure 10.2a     Territorial Development Strategy Review – 1995 ‘Landscape Strategy Components’ – Scenario A

Figure 10.2b     Territorial Development Strategy Review – 1995 ‘Landscape Strategy Components’ – Scenario B

Figure 10.3      Plan of Landscape Resources

Figure 10.4      Plan of Landscape Character Area

Figure 10.5      Photo of Landscape Resources Landscape and Character Area (clear day)

Figure 10.6      Photo of Landscape Resources Landscape and Character Area (cloudy day)

Figure 10.7a     3MW Option Viewpoints and ZVI to Blade Tip

Figure 10.7b     5MW Option Viewpoints and ZVI to Blade Tip

Figure 10.8a     Plan of VSR Locations (3MW Option)

Figure 10.8b     Plan of VSR Locations (5MW Option)

Figure 10.9a     Viewpoint 1 – South China Sea – 3MW Option

Figure 10.9b     Viewpoint 1 – South China Sea – 5MW Option

Figure 10.10a   Viewpoint 2 – Between North and South Ninepin Islands – 3MW Option

Figure 10.10b   Viewpoint 2 – Between North and South Ninepin Islands – 5MW Option

Figure 10.11a   Viewpoint 3 – Clearwater Bay Country Club – 3MW Option

Figure 10.11b   Viewpoint 3 – Clearwater Bay Country Club – 5MW Option

Figure 10.12a   Viewpoint 4 – Clearwater Bay Second Beach Car Park – 3MW Option

Figure 10.12b   Viewpoint 4 – Clearwater Bay Second Beach Car Park – 5MW Option

Figure 10.13a   Viewpoint 5 – Tai Leng Tung Viewing Area in Clearwater Bay Country Park – 3MW Option

Figure 10.13b   Viewpoint 5 – Tai Leng Tung Viewing Area in Clearwater Bay Country Park – 5MW Option

Figure 10.14a   Viewpoint 6 – Sail Training Association of Hong Kong – 3MW Option

Figure 10.14b   Viewpoint 6 – Sail Training Association of Hong Kong – 5MW Option

Figure 10.15a   Viewpoint 7 – Port Shelter – 3MW Option

Figure 10.15b   Viewpoint 7 – Port Shelter – 5MW Option

Figure 10.16a   Viewpoint 8 – Sam Chau Mun – 3MW Option

Figure 10.16b   Viewpoint 8 – Sam Chau Mun – 5MW Option

Figure 10.17a   Viewpoint 9 – Pak Lap – 3MW Option

Figure 10.17b   Viewpoint 9 – Pak Lap – 5MW Option

Figure 10.18a   Viewpoint 10 – High Island Reservoir – 3MW Option

Figure 10.18b   Viewpoint 10 – High Island Reservoir – 5MW Option

Figure 10.19a   Viewpoint 11 – Tai Cham Koi  – 3MW Option

Figure 10.19b   Viewpoint 11 – Tai Cham Koi – 5MW Option

Figure 10.20a   Viewpoint 12 – Tai Long Wan Beach – 3MW Option

Figure 10.20b   Viewpoint 12 – Tai Long Wan Beach – 5MW Option

Figure 10.21     Landscape and Visual Mitigation Measures – Operational Phase

Figure 10.22     Landscape and Visual Mitigation Measures – Operational Phase

Figure 10.23     Residual Landscape Resource Impact in (Pre) Construction Phase

Figure 10.24     Residual Landscape Resource Impact in Operation Phase

Figure 10.25     Residual Landscape Character Impact in (Pre) Construction Phase

Figure 10.26     Residual Landscape Character Impact in Operation Phase

Figure 10.27     Residual Visual Impact in (Pre) Construction Phase

Figure 10.28     Residual Visual Impact in Operation Phase

 


List of Appendices

Appendix 1A    Consulted Project Stakeholder

Appendix 1B    Study Brief Checklist

Appendix 2A    MNSRA Report Executive Summary

Appendix 4A    Calibration Report

Appendix 4B    Water Sensitive Receivers

Appendix 4C    Allowable SS Elevations for the WSRs

Appendix 4D    Predicted Water Quality Results for Unmitigated Scenarios

Appendix 4E    Elutriate Test Results

Appendix 4F    Predicted Water Quality Results for Cumulative Impacts

Appendix 4G    Predicted Water Quality Results for Mitigated Scenarios

Appendix 4H    Oil Spill Management Plan

Appendix 5A    Benthic Epifauna

Appendix 5B    Benthic Infauna

Appendix 5C    City University Infauna Report

Appendix 6A    Wind Data

Appendix 6B    GPS Data

Appendix 6C    Marine Mammal Sighting Sheet

Appendix 7A    Bird Count

Appendix 7B    Collision Probabilities of Selected Species

Appendix 8A    Fisheries Questionnaire

Appendix 8B    Vessel Survey

Appendix 9A    Definition of Targets of Archaeological Potential