TABLE OF CONTENT
VOLUME 1
Project Background
Objectives of the EIA Study
Report Structure
Brief Description
Benefits of the Project
Scope of the Project
Consideration of Alternatives
Construction Methodologies
Construction Programme
Continuous Public Involvement
Introduction
Environmental Legislation,
Standards and Guidelines
Assessment Methodology
Baseline Conditions
Ecological Importance
Identification of Environmental
Impact
Evaluation of Ecological Impacts
Mitigation of Adverse
Environmental Impacts
Evaluation of Residual Impacts
Environmental Monitoring and
Audit
Conclusion
Reference
Introduction
Environmental Legislation,
Standards and Guidelines
Description of the Environment
and Baseline Conditions
Identification and Evaluation of
Fisheries Impacts
Mitigation Measures of Adverse
Fisheries Impacts1
Environmental Monitoring and
Audit4
Conclusion
Reference
Introduction
Environmental Legislation,
Standards and Guidelines
Description of the Environment
Noise Sensitive Receivers
Background Noise Measurement
Potential Sources of Impact
Assessment Methodology
Airborne Noise Impact Assessment
Recommended Mitigation Measures
Evaluation of Residual Impacts
Cumulative Impact
Environmental Monitoring and
Audit
Conclusion
Introduction
Environmental Legislation,
Standards and Guidelines
Identification of Ground-borne
Noise Sensitive Receivers
Potential Sources of Impact
Ground-borne Noise Prediction
Methodology
Ground-borne Noise Impact
Assessment
Recommended Mitigation Measures
Environmental Monitoring and
Audit
Conclusion
7. LANDSCAPE AND VISUAL IMPACT ASSESSMENT
Introduction
Environmental Legislation,
Standards and Guidelines
Assessment Methodology
Scope and Content of the Study
Review of Planning and
Development Control Framework
Baseline Study
Landscape Impact Assessment
Recommended Mitigation Measures
Visual Impact Assessment
Recommended Mitigation Measures
Conclusion
Introduction
Environmental Legislation and
Standards
Assessment Methodology
Existing Conditions
Identification of Potential
Impacts
Evaluation of Potential Impacts
Mitigation Measures
Environmental Monitoring and
Audit
Conclusion
Reference
Introduction
Environmental Legislation,
Standards and Guidelines
Assessment Methodology
Description of the Environment
Identification of Potential
Environmental Impacts
Prediction and Evaluation of
Environmental Impacts
Conclusion
10. WASTE MANAGEMENT IMPLICATIONS
Introduction
Environmental Legislation
Environmental Guidelines
Assessment Approach and
Methodology
Identification of Waste Sources
Evaluation of Waste Impacts for
Construction Phase
Evaluation of Environmental
Impacts for Operation Phase
Mitigation Measures for
Construction Phase
Mitigation Measures for Operation
Phase
Impacts Caused by Handling, Collection
and Disposal of Waste
Evaluation of Residual Impacts
Environmental Monitoring and
Audit Requirements
Conclusion
Introduction
Environmental Legislation,
Standards and Guidelines
Description of the Environment
and Baseline Conditions
Identification of Water Sensitive
Receivers
Identification of Potential
Impacts
Assessment Approach and
Methodology
Cumulative Impacts from
Concurrent Projects
Prediction and Evaluation of
Impacts
Recommended Water Quality
Mitigation Measures
Evaluation of Residual Impacts
Environmental Monitoring and
Audit Requirements
Conclusions
Introduction
Environmental Legislation,
Standards and Guidelines
Description of the Environment
Air Sensitive Receivers
Potential Sources of Impact
Assessment Methodology
Prediction and Evaluation of
Impacts
Recommended Air Quality
Mitigation Measures
Evaluation of Residual Impacts
Environmental Monitoring and
Audit Requirements
Conclusion
Introduction
Legislation requirement and
evaluation criteria
Study Objectives and Methodology
Facility Details
Population Data
Hazard Identification
Frequency analysis
Consequence analysis
Risk Summation
Conclusions
Recommendations
References
Introduction
Environmental Legislation,
Standards and Guidelines
Assessment Criteria and
Methodology
Assessment of Potential Risk
Recommendations
Environmental Monitoring and
Audit
Conclusion
15. IMPACTS ON THE RESTORED NGAU TAM MEI LANDFILL
Introduction
Ngau Tam Mei Landfill History
Tunnel Configuration and
Construction Method
Identification of Impacts
Assessment Methodology and
Criteria
Evaluation of Impacts
Mitigation of Potential Impacts
Conclusions and Recommendations
References
16. ENVIRONMENTAL
MONITORING AND AUDIT
Introduction
Ecological Impact
Fisheries Impact
Airborne Noise Impact
Ground-borne Noise Impact
Landscape and Visual Impact
Cultural Heritage Impact
Land Contamination
Waste Management Implications
Water Quality Impact
Air Quality Impact
Hazard to Life
Landfill Gas Hazard
Impact on Restored Ngau Tam Mei
Landfill
18. IMPLEMENTATION SCHEDULE AND RECOMMENDED MITIGATION MEASURES
List of Tables
Table
2.1 Summary of Alignment
Table
2.2 Criteria for Option
Development
Table
2.3 Alignment Options
Table
2.4 Evaluation of Alignment
Options in Preliminary Design Study
Table
2.5 WKT Design Scheme Options
Table
2.6 Generic Type of Ventilation
Buildings
Table
2.7 Design Criteria for
Table
2.8 Summary of Proposed
Ventilation Buildings/EAPs
Table
2.9 Benefits and Dis-benefits of
Construction methods
Table
2.10 Preferred Construction
methods
Table
2.11 Locations of Construction
Shafts and Adits
Table
2.12 Proposed New Barging Points
Table
2.13 Tentative Civil Construction
Works Schedule of Key Elements
Table
2.14 Major Concurrent Projects
Table
2.15 Major Environmental
Concerns/Views
Table
3.1 Summary of Key Construction Elements
along the Project Alignment
Table
3.2 Ecological Survey Programme
Table
3.3 Summary of the Zonings and
Areas of Conservation Interest within the Study Area
Table
3.4 Size and Composition of the
Habitat Types within the Study Area in the Northern Section
Table
3.5 Avifaunal Species Recorded
from the Mai Po Area
Table
3.6 Dragonfly Species Recorded
from the Mai Po Area
Table
3.7 Butterfly Species Recorded
from the Mai Po Area
Table
3.8 Mammalian Species Recorded
from the Mai Po Area
Table
3.9 Herpetofaunal Species
Recorded from the Mai Po Area
Table
3.10 Freshwater Community Recorded
from the Mai Po Area
Table
3.11 Avifaunal Species Recorded
from the Shek Kong and Kam Tin Area
Table
3.12 Dragonfly Species Recorded
from the Shek Kong and Kam Tin Area
Table
3.13 Butterfly Species Recorded
from the Shek Kong and Kam Tin Area
Table
3.14 Mammalian Species Recorded
from the Shek Kong and Kam Tin Area
Table
3.15 Herpetofaunal Species
Recorded from the Shek Kong and Kam Tin Area
Table
3.16 Freshwater Community Recorded
from the Shek Kong and Kam Tin Area
Table
3.17 Avifaunal Species Recorded
from the Ngau Tam Mei and Tai Tong Area
Table
3.18 Dragonfly Species Recorded
from the Ngau Tam Mei and Tai Tong Area
Table
3.19 Butterfly Species Recorded
from the Ngau Tam Mei and Tai Tong Area
Table
3.20 Mammalian Species Previously
Recorded from the Ngau Tam Mei and Tai Tong Area
Table
3.21 Herpetofaunal Species
Recorded from the Ngau Tam Mei and Tai Tong Area
Table
3.22 Freshwater Species Recorded
from the Ngau Tam Mei and Tai Tong Area
Table
3.23 Faunal Species of
Conservation Interest Previously Recorded within the Study Area of SMV
Table
3.24 Ecological Evaluation of
Active Agriculture Habitat
Table
3.25 Ecological Evaluation of
Inactive Agriculture Habitat
Table
3.26 Ecological Evaluation of
Fishpond Habitat
Table
3.27 Ecological Evaluation of
Reedbed / Freshwater Marsh Habitat
Table
3.28 Ecological Evaluation of
Created Wetland Habitat
Table
3.29 Ecological Evaluation of
Watercourse Habitat
Table
3.30 Ecological Evaluation of
Drainage Channel Habitat
Table
3.31 Ecological Evaluation of
Grassland Habitat
Table
3.32 Ecological Evaluation of
Seasonally Wet Grassland / Wet Grassland Habitat
Table
3.33 Ecological Evaluation of
Secondary
Table
3.34 Ecological Evaluation of
Shrubland Habitat
Table
3.35 Ecological Evaluation of
Table
3.36 Ecological Evaluation of
Developed Area / Wasteground Habitat
Table
3.37 Ecological Evaluation of
Urbanized and Developed Habitat at Southern Section
Table
3.38 Estimated Habitat Loss within
the Project Scheme Boundary
Table
3.39 Potential Direct Ecological
Impacts to Watercourse Habitat
Table
3.40 Potential Direct Ecological
Impacts to Drainage Channel Habitat
Table
3.41 Potential Direct Ecological
Impacts to Active Agriculture Habitat
Table
3.42 Potential Direct Ecological
Impacts to Inactive Agriculture Habitat
Table
3.43 Potential Direct Ecological
Impacts to Grassland Habitat
Table
3.44 Potential Direct Ecological
Impacts to Shrubland Habitat
Table
3.45 Potential Direct Ecological
Impacts to
Table
3.46 Potential Ecological Impacts
to Faunal Species of Conservation Interest in Project Area
Table
3.47 Potential Indirect Ecological
Impacts to Watercourse and Drainage Channel Habitat in Project Area
Table
3.48 Preferred Tunnel Construction
Methods to be Applied in the Project Alignment
Table
3.49 Relevant Concurrent Major Projects
in the Vicinity of the Project Area in the Northern Section
Table
3.50 Ecological Considerations in
Site Selection
Table
4.1 Fishpond Area and Annual
Fish Production in
Table
4.2 Condition and Area of Fishponds
recorded within the Study Area
Table
4.3 Key Works Elements and the
Construction Methods to be Applied in the Mai Po Area
Table
4.4 Evaluation of Fisheries
Impact to Active and Inactive Fishponds within Study Area of the MPV
Table
4.5 Evaluation of Fisheries
Impact to Other Active and Inactive Fishponds within the Study Area of other
Works Sites
Table
4.6 Precautionary Measures to
Potential Hydrological Impacts from Bore Tunnelling and Shaft Construction in
Mai Po
Table
5.1 Construction Noise Criteria
for Activity other than Percussive Piling
Table
5.2 Construction Noise Criteria
for SPME
Table
5.3 Acceptable Noise Level for
Airborne Railway Noise
Table
5.4 Baseline Environmental
Condition
Table
5.5 Representative Noise
Sensitive Receivers for Airborne Construction Noise Assessment
Table
5.6 Representative Noise
Sensitive Receivers for Operational Fixed Plant Assessment
Table
5.7 Representative Noise
Sensitive Receivers for Airborne Railway Noise Assessment
Table
5.8 Background Noise Measurement
Results
Table
5.9 Locations of Construction
Shafts
Table
5.10 Plant Schedule for SSS
Table
5.11 Identified Fixed Plant Noise
Sources
Table
5.12 Assumptions for Airborne
Railway Noise Assessment
Table
5.13 Subsources of High Speed
Train
Table
5.14 Worst Case Launchings and
Arrivals in SSS
Table
5.15 Operation Scenarios
Table
5.16 Unmitigated Construction
Noise Levels
Table
5.17 Unmitigated Airborne Railway
Noise Levels from ERS and SSS
Table
5.18 Predicted Noise Levels from
Train movement/operation at SSS
Table
5.19 Calculation of Maximum Sound
Power Level from Maintenance shed
Table
5.20 Unmitigated Noise Levels from
Maintenance Trains Movement During Night-time Period
Table
5.21 Maximum Sound Power Levels of
Ventilation Buildings
Table
5.22 Quiet PME Recommended for
Adoption during Construction Phase
Table
5.23 Noise Mitigation Measures for
Certain PME during Construction Phase
Table
5.24 Summary of Mitigated
Construction Noise Levels
Table
5.25 Mitigated Airborne Railway
Noise Levels from ERS and SSS
Table
5.26 Mitigated Noise Levels from
Train Movement/Operation at SSS
Table
5.27 Mitigated Noise Levels from
Maintenance Train Movement During Night-time Period
Table
5.28 Predicted Residual Impacts
Due to the Project
Table
5.29 Summary of Additional Noise
Sensitive Receivers
Table
5.30 Summary of Cumulative
Construction Noise Levels in MPV
Table
5.31 Summary of Further Mitigated
Cumulative Construction Noise Levels
Table
5.32 Summary of Cumulative
Construction Noise Levels in WKT
Table
5.33 Predicted Cumulative
Operational Noise Levels
Table
6.1 Ground-borne Construction
Noise Criteria
Table
6.2 Operational Ground-borne
Railway Noise Criteria
Table
6.3 Identified GBNSRs for
Assessment of Ground-borne Construction Noise Impacts due to TBM operation
Table
6.4 Identified GBNSRs for
Assessment of Ground-borne Construction Noise Impacts due to the Construction
of Adits
Table
6.5 Operation Phase Ground-borne
Railway Noise Sensitive Receivers
Table
6.6 LSR Values used for
Assessment
Table
6.7 Reference Source Levels
Table
6.8 Wave Propagation Properties
of Soil
Table
6.9 Chainages where TBM
Operation will occur
Table
6.10 Predicted Ground-borne
Construction Noise levels due to TBM Operation
Table
6.11 Locations at which TBM
Ground-borne Noise Levels would Exceed the Daytime Noise Limit
Table
6.12 Predicted PME Ground-borne
Noise Levels during Construction
Table
6.13 Assumed Train Movements
Table
6.14 Locations of Turnouts
Table
6.15 Predicted Ground-borne
Railway Noise Levels
Table
6.16 Approximate Chainages where
Low Noise Trackform to be provided
Table
6.17 Predicted Ground-borne Noise
Levels with the Provision of IST
Table
7.1 Relationship between
Receptor Sensitivity and Impact Magnitude in Defining Impact Significance
Table
7.2 Summary of Aboveground
Facilities
Table
7.3 Summary of Aboveground
Facilities at WKT
Table
7.4 Summary of WKT Options
Selection
Table
7.5 Details list of OZPs and
Zoning of the Project
Table
7.6 List of Zone of Visual
influence in Different Area
Table
7.7 Visual Sensitive Receivers
(VSRs) and their Sensitivity to Change
Table
7.8 Visual Sensitive Receivers
(VSRs) and their Magnitude of Impacts
Table
7.9 Landscape Resources and
Landscape Character Areas affected by the Proposed Works during Construction
and Operation Phase
Table
7.10 Proposed Landscape and Visual
Mitigation Measures for Construction Phase
Table
7.11 Proposed Landscape and Visual
Mitigation Measures for Operation Phase
Table
7.12 Significance of Landscape
Impacts in the Construction and Operation Phases
Table
7.13 Significance of Visual
Impacts in the Construction and Operation Phases
Table
8.1 Findings from Field Walk
Table
8.2 Summary of Hand Auger
Findings
Table
8.3 Summary of Test Pits
Findings
Table
8.4 Location of Sonar Contact
Points and Diver Survey Results
Table
8.5 Potential Impact on Built Heritage
Sites during Construction Phase
Table
8.6 Potential Impact on Built
Heritage Sites during Operation Phase
Table
9.1
Table
9.2 Supporting Works Area
Table
9.3 Potential Contaminated Sites
Identified in this Project
Table
9.4 Areas Infeasible for Site
inspection and Further Investigations
Table
9.5 Summary of SI findings
Table
9.6 Location, Depth and
Estimated Quantity of Contaminated Soil Found
Table
9.7 Factors for Remediation
Considerations
Table
9.8 Summary of Areas for Site
Appraisal and Investigation in Stage 2
Table
10.1 Identification of Waste Types
and Sources in Construction and Operation Phases of the Project
Table
10.2 Summary on Quantity of
C&D Materials Generated Annually
Table
10.3 Quantity of Fill Materials
Supplied by the Project and Required by HZMB
Table
10.4 Summary on Approximate
Quantity of C&D Materials Generated, Reused and Disposed of
Table
10.5 Summary of Annual Disposal
Quantity and Quality of C&D Materials
Table
10.6 Summary of the Disposal
Routes of the Works Areas
Table
10.7 Summary of Materials Disposed
of and Ramps Used in the Works Areas
Table
10.8 Summary of Handling Rate and
Frequency of Barge Movements
Table
10.9 Summary of Chemical Screening
Results
Table 10.10 Estimated
Quantity of Different Types of Sediment to be Excavated and Handled in Tunnel
Alignment Section from Chainage 140+380 to 140+900 and Cut-and-Cover Works
Areas for Hoi Ting Road Construction Shaft,
Table 10.11 Estimated
Quantity of Different Types of Sediment to be Excavated and Handled in
Cut-and-Cover Works Areas for
Table 10.12 Estimated
Quantity of Different Types of Sediment to be Excavated and Handled at Stream
in Shek Kong and Cut-and-Cover Work Area for Tai Kong Po Emergency Access Point
Table
10.13 Estimated Quantity of
Different Types of Sediment to be Excavated and Handled in Cut-and-Cover Works
Area for
Table
10.14 Estimated Quantity of
Different Types of Sediment to be Dredged and Handled at Dredging Area in Lung
Kwu Sheung Tan
Table
10.15 Summary of Waste Disposal for
Operation Phase
Table
10.16 Summary of Waste Generation
and Recommended Disposal Methods for Construction and Demolition Works
Table
11.1 Summary of Water Quality
Objectives for
Table
11.2 Summary of Water Quality
Objectives for Western Buffer WCZ
Table
11.3 Summary of Water Quality
Objectives for North
Table
11.4 Summary of Water Quality
Objectives for Deep Bay WCZ
Table
11.5 WSD Standards at
Table
11.6 Baseline Marine Water Quality
Condition for
Table
11.7 Baseline Marine Water Quality
Condition for Western Buffer WCZ
Table
11.8 Baseline Marine Water Quality
Condition for North
Table
11.9 Baseline Marine Water Quality
Condition for Western Buffer and Deep Bay WCZ
Table
11.10 Baseline Marine Sediment
Quality Condition
Table
11.11
Table
11.12 Summary of Parameters for
Thermal Plume Model (Delft3D-FLOW)
Table
11.13 Estimated Discharge Rates
Table
11.14 Estimated Diurnal Flow Pattern
Table
11.15 Summary of Parameters for
Modelling of Residual Chorine (Delft3D-PART)
Table
11.16 Approximately Distance of
Other Cooling Water Intakes and Outfalls from Proposed WKT Outfall
Table
11.16a Ambient and Tolerance Values for Suspended Solids Concentrations in the
Vicinity of Sensitive Receivers
Table
11.16b Calculated Suspended Sediment
Concentrations for the Near Shore Dredging Region (with Deployment of Silt
Curtain)
Table
11.17 Temperature Elevations at
Cooling Water Intakes
Table
11.18 Approximate
Dimension of Mixing Zones of Thermal from the Proposed Seawater Cooling System
Table
12.1
Table
12.2 PTI Air Quality Guideline
Table
12.3 Baseline Environmental
Condition
Table
12.4 EPD Air Quality Monitoring
Data in 2007
Table
12.5 Representative Air Sensitive
Receivers
Table
12.6 Tunnel Construction using Cut
and Cover Method
Table
12.7 Locations of Construction
Shafts and Adits
Table
12.8 Interfacing Project
Table
12.9 Concrete Batching Plant –
Dust Emission Design Control Measures
Table
12.10 Cut & Cover Area and
Stockpiles – Dust Emission Design Control Measures
Table
12.11 Barging Facilities – Dust
Emission Design Control Measures
Table
12.12 Emission Factors for Dusty
Construction Activities at
Table
12.13 Emission Factors for Dusty
Construction Activities at
Table
12.14 Emission Factors for Dusty
Construction Activities at Shek Kong Works Area
Table
12.15 Predicted Cumulative Maximum
Hourly Average TSP Concentrations at Representative Air Sensitive Receivers (
Table
12.16 Predicted Cumulative Maximum
24-Hour Average TSP Concentrations at Representative Air Sensitive Receivers (
Table
12.17 Predicted Contribution to
Annual Average TSP Concentrations at Representative Air Sensitive Receivers (
Table
12.18 Predicted Cumulative Maximum
Hourly Average TSP Concentrations at Representative Air Sensitive Receivers (
Table
12.19 Predicted Cumulative Maximum
24-Hour Average TSP Concentrations at Representative Air Sensitive Receivers (
Table
12.20 Predicted Contribution to
Annual Average TSP Concentrations at Representative Air Sensitive Receivers (
Table
12.21 Predicted Cumulative Maximum
Hourly Average TSP Concentrations at Representative Air Sensitive Receivers
(Shek Kong Works Area)
Table
12.22 Predicted Cumulative Maximum
24-Hour Average TSP Concentrations at Representative Air Sensitive Receivers
(Shek Kong Works Area)
Table
12.23 Predicted Contribution to
Annual Average TSP Concentrations at Representative Air Sensitive Receivers
(Shek Kong Works Area) from the Project
Table
13.1 Project Contracts and Work
Areas (Blasting only)
Table
13.2 Summary of Explosives
Deliveries and Transport Quantities (for Base Case)
Table
13.3 Summary of Explosives
Deliveries and Transport Quantities (Worst Case)
Table
13.4 Scenarios Considered in the
QRA study
Table
13.5 Potential Loss of Life for
Base Case
Table
13.6 Potential Loss of Life for
Worst Case
Table
13.7 Potential Loss of Life for
Worst Case, Option 1 and Option 2
Table
13.8 ALARP Assessment Results
Table
14.1 Classification of Risk
Category
Table
14.2 Summary of General
Categorisations of Risk
Table
14.3 Landfill Gas Monitoring
Results in NTML (October 2006 to September 2008)
Table
14.4 Groundwater Quality
Monitoring Results in NTML (October 2006 to July 2008)
Table
14.5 Landfill Gas Monitoring
Results in GDBL (October 2006 to September 2008)
Table
14.6 Groundwater Quality
Monitoring Results in GDBL (December 2006 to September 2008)
Table
14.7 Landfill Gas Monitoring
Results in SLSL (October 2006 to September 2008)
Table
14.8 Groundwater Quality
Monitoring Results in SLSL (October 2006 to October 2008)
Table
14.9 Groundwater Level in NTML
(August 2003 to August 2008)
Table
14.10 Groundwater Level in GDBL
(December 2006 to September 2008)
Table
14.11 Groundwater Level in SLSL
(November 2006 to November 2008)
Table
14.12 Qualitative Assessment of
Landfill Gas Hazard Associated with the Project
Table
14.13 Actions in the Event of Gas
Being Detected
Table
15.1 Summary
of the Impact of Only Settlement Resulting from Tunnel Formation
Table
17.1 Summary of Key Environmental
Outcomes / Benefits
Table
18.1 Project Implementation
Schedule