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1. INTRODUCTION
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1.1 Background
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1.2 Requirements
under the Environmental Impact Assessment Ordinance
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1.3 Purpose
and Objective of the Environmental Impact Assessment (EIA) Study
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1.4 Approach
of the EIA Study
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1.5 Structure
of the EIA Report
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2. PROJECT DESCRIPTION
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2.1 Background
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2.2 Location
and Description of the Project
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2.3 Need
for the Project
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2.4 Consideration
of Alternative Options of Water Supply, Water Main Alignments, Landfall
Locations and Construction Methods
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2.5 Implementation
Programme
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2.6 Project
Interfaces / Concurrent Projects
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2.7 Scope
of Works during Operational Phase
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2.8 Continuous
Public Involvement
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2.9 Illustrative
Materials for Landscaping Measures
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3. WATER
QUALITY IMPACT ASSESSMENT
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3.1 Introduction
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3.2 Environmental
Legislation, Policies, Standards and Criteria
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3.3 Study
Area
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3.4 Baseline
Water Quality Conditions of the Study Area
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3.5 Water
Sensitive Receivers
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3.6 Potential
Impacts during Construction Phase
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3.7 Mitigation
Measures for Construction Phase Impacts
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3.8 Residual
and Cumulative Impacts
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3.9 Monitoring
and Audit Requirement
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3.10 Summary
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3.11 References
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4. ECOLOGICAL IMPACT ASSESSMENT
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4.1 Introduction
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4.2 Environmental
Legislation, Criteria and Guidelines
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4.3 Study
Area
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4.4 Ecological
Key Issues
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4.5 Literature
Review
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4.6 Field
Survey Scope and Methodology
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4.7 Key
Ecological Issues for the EIA Study
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4.8 Results
of Literature Review
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4.9 Results
of Field Surveys
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4.10 Evaluation of Habitats and Species
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4.11 Impact Identification and Evaluation
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4.12 Impact Avoidance and Mitigation Measures
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4.13 Residual and Cumulative Ecological Impacts
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4.14 Ecological Monitoring and Audit
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4.15 Summary
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4.16 References
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5. FISHERIES IMPACT ASSESSMENT
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5.1 Introduction
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5.2 Legislation
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5.3 Study
Area
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5.4 Methodologies
for Baseline Establishment and Assessment
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5.5 Baseline
Conditions
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5.6 Sensitive
Receivers
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5.7 Impact
Identification and Evaluation
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5.8 Mitigation
of Impacts
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5.9 Residual
Impacts
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5.10 Environmental Monitoring and Audit
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5.11 Summary
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5.12 References
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6. CULTURAL
HERITAGE IMPACT ASSESSMENT
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6.1 Introduction
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6.2 Environmental
Legislation, Standards, Guidelines and Criteria
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6.3 Terrestrial
Archaeological Investigation (TAI)
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6.4 Marine
Archaeological Investigation (MAI)
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6.5 Residual
Impacts
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6.6 Environmental
Monitoring and Audit
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6.7 Summary
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6.8 References
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7. CONSTRUCTION WASTE MANAGEMENT
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7.1 Introduction
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7.2 Relevant
Legislation, Policies, Standards and Criteria
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7.3 Assessment
Methodology
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7.4 Sources
and Types of Waste arising from the Project
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7.5 Impact
Assessment and Evaluation
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7.6 Mitigation
Measures
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7.7 Evaluation
of Residual Impacts
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7.8 Environmental
Audit
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7.9 Summary
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8. CONSTRUCTION
NOISE IMPACT ASSESSMENT
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8.1 Introduction
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8.2 Noise
Criteria
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8.3 Study
Area
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8.4 Representative
Noise Sensitive Receivers
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8.5 Construction
Noise Impact Assessment
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8.6 Mitigation
Measures
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8.7 Residual
Impact
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8.8 Cumulative
Impact
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8.9 Monitoring
and Audit Requirements
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8.10 Summary
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9. ENVIRONMENTAL
MONITORING AND AUDIT REQUIREMENTS
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9.1 Introduction
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9.2 Background
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9.3 Environmental
Management
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9.4 Project
Organisation
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9.5 Construction
Programme
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9.6 Water
Quality
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9.7 Ecology
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9.8 Fisheries
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9.9 Cultural
Heritage
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9.10 Waste
Management
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9.11 Construction
Noise
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9.12 Other
Information
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10. ENVIRONMENTAL OUTCOMES
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10.1 Justification and Benefits of the Project
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10.2 Population and Environmental Sensitive Areas Protected
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10.3 Environmental Friendly Designs Recommended
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10.4 Key Environmental Problems Avoided
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10.5 Compensation Areas Included
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10.6 Environmental Benefits of Environmental Protection Measures
Recommended
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11. CONCLUSION
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11.1 Background
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11.2 Location
and Description of the Project
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11.3 Water
Main Design
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11.4 Justification and Benefits of the Project
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11.5 Key
Environmental Issues
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11.6 Water
Quality Impact
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11.7 Ecological
Impact
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11.8 Fisheries
Impact
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11.9 Cultural
Heritage Impact
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11.10 Construction Waste Management
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11.11 Construction Noise Impact
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11.12 Environmental Monitoring and Audit (EM&A)
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11.13 Overall
Conclusion
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PLATES
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Plate 1
Rocky shore of Chi Ma
Wan, Lantau
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Plate 2
Low headland at Tai
Kwai Wan, Cheung Chau
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Plate 3
Cheung Kwai Road and WSD temporary storage area
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Plate 4
WSD temporary area,
south of Tai Kwai Wan
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Plate 5
Village vehicle in
Cheung Chau
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Plate 6
Adamasta Channel
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Plate 7
Existing exposed land
main at Lantau
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Plate 8
Existing exposed land
main at Cheung Chau
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Plate 9
Typical Horizontal
Directional Drilling Rig
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Plate 10
Typical Horizontal
Directional Drilling Rig and General Site Arrangement
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Plate 11
Typical Drilling
Fluid Recycling Unit
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Plate 12
Typical Bentonite Pump
and General Site Arrangement
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APPENDICES
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Appendix 1
EIA Study
Brief
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Appendix
2
Evaluation of
Options for Improving the Adequacy and Reliability of the Water Supply to
Cheung Chau
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Appendix
4
Details of
Ecological Impact Assessment
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Appendix
4.1
Works
Programme
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Appendix
4.2
Plant
Species recorded within the Study Area
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Appendix
4.3
Bird
species recorded within the Study Area
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Appendix
4.4
Herpetofauna
and Mammal recorded within the Study Area
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Appendix
4.5
Butterfly
Species recorded within the Study Area
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Appendix
4.6
Dragonfly
recorded within the Study Area
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Appendix
4.7
Marine
Ecological Survey Results
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Appendix
6
Marine
Archaeological Investigation
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Appendix 8.1
Details of
Construction Noise Impact Assessment
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Appendix 10
Project
Implementation Schedule
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LIST OF
TABLES
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Table 2.1
Summary of the Evaluation of
Alternative Options for the Improvement of Fresh Water Supply to Cheung Chau
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Table 2.2
Summary of Public Consultation
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Table 3.1
Water Quality Objectives for
Southern WCZ
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Table 3.2
Summary of EPD Marine Water Quality
Data for Southern WCZ (SM12) in 2008
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Table 4.1
Habitats recorded within the
Assessment Area
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Table 4.2
Evaluation of Plantation Habitat
within the Assessment Area
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Table 4.3
Evaluation of Shrubland-Grassland
Habitat within the Assessment Area
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Table 4.4
Evaluation of Developed Area within
the Assessment Area
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Table 4.5
Evaluation of Sandy Shore within
the Assessment Area
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Table 4.6
Evaluation of Rocky Shore within
the Assessment Area
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Table 4.7
Evaluation of Artificial Seawall
within the Assessment Area
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Table 4.8
Evaluation of Marine Waters within
the Assessment Area
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Table 4.9
Evaluation of Flora Species of
Conservation Concern within the Study Area
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Table 4.10
Evaluation of Fauna Species of
Conservation Concern within the Study Area
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Table 4.11
Habitat Loss caused by the Project
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Table 5.1
Evaluation of Fisheries Impact
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Table 6.1
Assessment of Terrestrial
Archaeological Potential of the Project
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Table 7.1
Types of C&D Materials and
Wastes Generated by the Project
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Table 7.2
The Estimated Quantities of C&D
Materials and C&D Waste Arising from the Project
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Table 7.3
Summary of the Quantities and
Disposal Routes of C&D Materials and Waste Arising from the Project
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Table 7.4
Preliminary Disposal Programme of
the C&D Materials
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Table 8.1
EIAO-TM Daytime Construction Noise
Standards
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Table 8.2
Representative Noise Sensitive
Receivers (NSRs)
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Table 8.3
Predicted Noise Level during
Construction at Cheung Chau - Unmitigated
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Table 8.4
Quiet Powered Mechanical Equipment
Recommended for Use during Construction Phase
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Table 8.5
Predicted Noise Level during
Construction at Cheung Chau - Mitigated (Level 1 Mitigation: Use of Quiet
Plant)
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Table 8.6
Predicted Noise Level during
Construction at Cheung Chau - Mitigated (Level 2 Mitigation: Use of Quiet
Plant + Temporary Noise Barrier)
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Table 9.1
Water Quality Monitoring Stations
during Construction Stage
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Table 9.2
Representative NSRs chosen for
Noise Monitoring during Construction Stage
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LIST OF FIGURES
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Figure
1.1
General
Location Plan
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Figure
1.2
General
Location Plan of the Project (Aerial View)
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Figure
2.1
Proposed Main
Alignment – Key Plan
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Figure
2.2
Proposed Main
Alignment (Cheung Chau Landfall)
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Figure
2.3
Proposed Main
Alignment (Lantau Landfall)
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Figure
2.4
Schematic
Layout of Proposed Launching Site at Cheung Chau
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Figure
2.5
Schematic
Layout of Proposed Reception Site at Lantau
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Figure
2.6
Options
considered for Improvement of Fresh Water Supply to Cheung Chau
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Figure
2.7
Proposed HDD
Pipe Alignment
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Figure
2.8
Typical HDD Procedures
for this Project
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Figure
2.9
Landscaping
Measures for the Proposed Land-Based Main at Cheung Chau
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Figure
2.10
Landscaping
Measures for the Proposed Land-Based Main at Lantau
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Figure
3.1
Location of EPD
Marine Water Quality Monitoring Station near the Project
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Figure
3.2
Water
Sensitive Receivers within the Study Area
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Figure
3.3
Proposed Water
Quality Mitigation Measures for the Launching Site at Cheung Chau
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Figure
3.4
Proposed Water
Quality Mitigation Measures for the Reception Site at Lantau
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Figure 4.1
Study Area, Sites
of Conservation Importance and Sampling Locations
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Figure
4.2
Seasonal
Distribution of Chinese White Dolphin in Hong Kong Waters (April 2008 –
February 2009)
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Figure
4.3
Seasonal
Distribution of Finless Porpoise in Hong Kong Waters (2004 – 2009)
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Figure
4.4a
Habitat Map
and Locations of Species of Conservation Concern
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Figure
4.4b
Habitat Map and
Locations of Species of Conservation Concern (close-up at Chi Ma Wan Landfall
Point)
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Figure 4.4c
Habitat Map
and Locations of Species of Conservation Concern (close-up at Tai Kwai Wan
Landfall Point)
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Figure
4.5
Photos of
Habitats, Species of Conservation Concern and Works Area
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Figure
4.6
Coral Species
recorded within the Study Area
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Figure
5.1
Locations of
Fisheries Resources within the Study Area
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Figure
5.2
Distribution
of Overall fisheries Production (Adult Fish) in terms of Production (kg/ha)
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Figure
5.3
Distribution
of Overall fisheries Production (Adult Fish & Fish Fry) in terms of
Production (HK$/ha)
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Figure 6.3.1
Geological Map
of Chi Ma Wan
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Figure 6.3.2
Geological Map
of Cheung Chau
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Figure 6.3.3
Location of
Tai Kwai Wan Archaeological Site
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Figure 6.3.4
2007 Aerial
Photograph of Chi Ma Wan
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Figure 6.3.5
1945 Aerial
Photograph of Tai Kwai Wan
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Figure 6.3.6
1980
Topographic Map overlaid on Current Topographic Map showing Landform Changes
at Tai Kwai Wan
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Figure 6.3.7
1963 Aerial
Photograph of Tai Kwai Wan
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Figure 6.3.8
1985 Aerial Photograph
of Tai Kwai Wan
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Figure 6.4.1
Seabed
Features of the Survey Area (Sheet 1 of 2)
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Figure 6.4.2
Seabed
Features of the Survey Area (Sheet 2 of 2)
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Figure
8.1
Locations of
Noise Sensitive Receivers
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Figure
8.2
Location of
Proposed Temporary Noise Barrier
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Figure
9.1
Locations of
Proposed Water Quality Monitoring Stations
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Figure
9.2
Locations of
Proposed Noise Monitoring Station and Noise Sensitive Receivers
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