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TABLE OF CONTENTS

1.   Introduction

Background

Designated Projects under the EIAO

Objectives of the EIA Study

Report Structure

 

2.   Consideration of Alternatives

Introduction

Background Information

Considerations for Alternative Project Design and Alignment Options

Considerations for Construction Method

 

3.   Project Description and Proposed Construction Methodology

Brief Description

Preliminary Engineering Design Considerations

Preferred Alignment

Major Works Area/Site Requirements and Locations

Other Works Area within the Project Boundary

Above Ground Structures

Construction Methods

Construction Programme

Concurrent Projects

Continuous Public Involvement

 

4.   Landscape and visual Impact Assessment

Introduction

Scope and Content of the Study

Assessment Area

Environmental Legislation, Standards and Guidelines

Assessment Methodology

Review of planning control framework

Baseline Study

Landscape Impact Assessment

Visual Impact Assessment

Landscape and Visual Mitigation Measures

Residual Impacts

Cumulative Impacts

Conclusion

 

5.   AIR QUALITY IMPACT

Introduction

Environmental Legislation, Standards and Guidelines

Description of the Environment

Air Sensitive Receivers

Potential Sources of Impact

Assessment Methodology

Prediction and Evaluation of Impacts

Evaluation of Residual Impacts

Environmental Monitoring and Audit Requirements

Conclusion

6.   AIRBORNE NOISE IMPACT

Introduction

Environmental Legislation, Standards and Guidelines

Description of the Existing Environment

Noise Sensitive Receivers

Potential Sources of Impact

Assessment Methodology

Airborne Noise Impact Assessment

Recommended Mitigation Measures

Evaluation of Residual Impacts

Environmental Monitoring and Audit Requirements

Conclusion

 

7.   GROUNDBORNE NOISE IMPACT

Introduction

Environmental Legislation, Standards and Guidelines

Identification of Ground-borne Noise Sensitive Receivers

Ground-borne Noise Sources

Ground-borne Noise Prediction Methodology

Assessment Results

Recommended Mitigation Measure

Environmental Monitoring and Audit Requirements

Conclusion

 

8.   water quality impact

Introduction

Environmental Legislation, Standards and Guidelines

Description of the Environment

Identification of Water Sensitive Receivers

Assessment Approach and Methodology

Identification of Pollution Sources

Prediction and Evaluation of Impacts

Cumulative Impacts from Concurrent Projects

Recommended Water Quality Mitigation Measures

Evaluation of Residual Impacts

Environmental Monitoring and Audit Requirements

Conclusion

 

9.   Waste Management Issues

Introduction

Environmental Legislation

Environmental Guidelines

Assessment Approach and Methodology

Identification of Waste Sources

Predicted and 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

 

10.  Land Contamination Issue

Introduction

Environmental Legislation, Standards and Guidelines

Assessment Methodology

Description of the Environment

Identification of Potential Environmental Impacts

Prediction and Evaluation of Environmental Impacts

Remediation Actions and Precautionary Measures to Be Undertaken during Construction

Evaluation of Residual Environmental Impacts

Conclusion

 

11.  ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

Introduction

Landscape and Visual Impact

Air Quality Impact

Airborne Noise Impact

Ground-borne Noise Impact

Water Quality Impact

Waste Management Implication

Land Contamination

 

12.  summary of the environmental outcomes and recommended mitigation measures

Environmental Outcomes

Summary of Measures Taken for Minimization of Environmental Impacts

 

13.  Implementation Schedule and Recommended Mitigation Measures

 

14.  CONCLUSION

Introduction

Landscape and Visual Impacts

Air Quality Impact

Air-borne Noise Impact

Ground-borne Noise Impact

Water Quality Impact

Waste Management Implications

Land Contamination

Environmental Monitoring and Audit

Overall

 

 


LIST OF TABLE

 

Table No.

Title

Table 2.1

Considerations Used to Determine Preferred Alignment and Construction Method

Table 2.2

Potential Environmental Benefits/Disbenefits of Alignment Option

Table 2.3

Environmental Benefits and Disbenefits of Tunnel Construction Methods

Table 2.4

Benefits and Disbenefits of the Proposed HUH Construction Methods

Table 3.1

Construction Phase Elements

Table 3.2

Operational Phase Elements

Table 3.3

Permanent Above-ground Structure

Table 3.4

Summary of Concurrent Projects

Table 4.1

Relationship between Landscape Sensitivity and Impact Magnitude in Defining Impact Significance

Table 4.2

Relationship between Visual Receptor Sensitivity and Impact Magnitude in Defining Impact Significance

Table 4.3

Landscape Resources and Their Sensitivity

Table 4.4

Landscape Character Areas and Their Sensitivity

Table 4.5

Visual Sensitive Receivers (VSRs) and Their Sensitivity

Table 4.6

Magnitude of Landscape Impacts during Construction and Operation Phases

Table 4.7

Locations and Development Details of Permanent Aboveground Structures

Table 4.8

Magnitude of Visual Impact during Construction and Operation Phases

Table 4.9

Proposed Landscape and Visual Mitigation Measures for Construction Phase

Table 4.10

Proposed Landscape and Visual Mitigation Measures for Operation Phase

Table 4.11

Significance of Landscape Impacts during Construction and Operation Phases

Table 4.12

Significance of Visual Impacts during Construction and Operation Phases

Table 5.1

Hong Kong Air Quality Objectives

Table 5.2

Background Air Pollutant Concentrations adopted in this Assessment

Table 5.3

Representative Air Sensitive Receivers

Table 5.4

Barging Facilities – Dust Emission Design Control Measures

Table 5.5

Emission Factors for Dusty Construction Activities

Table 5.6

Emission Factors for Barging Facilities

Table 5.7

Predicted Cumulative Maximum Hourly, Daily and Annual Average TSP Concentrations at Representative Air Sensitive Receivers (Unmitigated)

Table 5.8

Predicted Cumulative Maximum Hourly, Daily and Annual Average TSP Concentrations at Representative Air Sensitive Receivers (Mitigated)

Table 6.1

Air-borne Daytime Construction Noise Criteria

Table 6.2

Construction Noise Criteria for Activity other than Percussive Piling during Restricted Hours

Table 6.3

Construction Noise Criteria for SPME

Table 6.4

Airborne Rail Noise Criteria

Table 6.5

Fixed Plant Noise Criteria

Table 6.6

Key Noise Sources to the Existing Environment

Table 6.7

Prevailing Noise Levels

Table 6.8

Representative Noise Sensitive Receivers/Assessment Point for Air-borne Noise Assessment

Table 6.9

Area Sensitive Rating for Representative Noise Sensitive Receivers/Assessment Point

Table 6.10

Construction Phase Elements for the Project (Non-restricted Hours)

Table 6.11

Construction Phase Elements for the Project (Restricted Hours)

Table 6.12

Operational Phase Elements for the Project

Table 6.13

Air-borne Rail Noise Parameters and Correction Factors

Table 6.14

Unmitigated Construction Noise Levels due to the Project

Table 6.15

Unmitigated Construction Noise Levels during Restricted Hour

Table 6.16

Airborne Rail Noise Calculation Summary – Unmitigated

Table 6.17

Fixed Plant Noise Design Criteria for HUH

Table 6.18

Fixed Plant Noise Design Criteria for NOV

Table 6.19

Quiet PME Recommended for Adoption during Construction Phase

Table 6.20

Noise Mitigation Measures for Certain PME during Construction Phase

Table 6.21

Cumulative Construction Noise Levels during Construction Period – Mitigated

Table 6.22

Mitigated Construction Noise Levels during Restricted Hour

Table 6.23

Assessment of Residual Impacts from Construction Noise

Table 6.24

Airborne Rail Noise Calculation Summary – Mitigated

Table 6.25

Cumulative Airborne Rail Noise Summary – Mitigated

Table 7.1

Construction Ground-borne Noise Criteria

Table 7.2

Operational Ground-borne Noise Criteria

Table 7.3

Representative Noise Sensitive Receivers for Construction Ground-borne Noise Assessment

Table 7.4

Representative Noise Sensitive Receivers for Operational Ground-borne Noise Assessment

Table 7.5

Reference Vibration Level

Table 7.6

Wave Propagation Properties of Soil

Table 7.7

Loss factor for Coupling into Building Foundation

Table 7.8

Typical PSR to be adopted for the Representative NSR

Table 7.9

Predicted Construction Ground-borne Noise Impact

Table 7.10

Predicted Operational Ground-borne Noise Impact (Unmitigated)

Table 7.11

Cumulative Operational Ground-borne Noise Impact

Table 8.1

Summary of Water Quality Objectives for Victoria Harbour WCZ

Table 8.2

Baseline Marine Water Quality Condition for Victoria Harbour WCZ

Table 9.1

Identification of Waste Types and Sources in Construction and Operation Phases of the Project

Table 9.2

Summary of Inert Construction and Demolition Materials Quantities Generated

Table 9.3

Changes of Sampling ID

Table 9.4

Summary of Chemical Screening Results

Table 9.5

Summary of Biological Screening Results

Table 9.6

Disposal Quantity for Marine Sediment

Table 9.7

Summary of Waste Disposal for Operation Phase

Table 9.8

Summary of Waste Generation and Recommended Disposal Methods for Construction and Demolition Works

Table 10.1

Potentially Contaminated Sites Identified under the Latest Design

Table 10.2

Summary of SI Status and Findings

Table 12.1

Summary of Key Environmental Outcomes / Benefits

Table 13.1

Implementation Schedule of Recommended Mitigation Measures

Table 14.1

Summary of Environmental Impact Associated with the Project

 


 


List of Figures


Figure No.

Title

NEX2213/C/361/ENS/M50/501

SCL Overall Alignment (With Boundary of SCL – Mong Kok East to Hung Hom Section)

NEX2213/C/361/ENS/M50/502

Proposed SCL Alignment and Associated Works Area & Project Boundary (SCL – Mong Kok East to Hung Hom Section)

NEX2213/C/361/ENS/M50/503

Major Concurrent Projects

NEX2213/C/361/ENS/M52/501

Locations of Representative Noise Sensitive Receivers for Construction Phase (SCL – Mong Kok East to Hung Hom Section)

NEX2213/C/361/ENS/M52/601

Locations of Representative Noise Sensitive Receivers for Operational Phase (SCL – Mong Kok East to Hung Hom Section)

NEX2213/C/361/ENS/M54/501

Landscape Impact Study Boundary

NEX2213/C/361/ENS/M54/502

Visual Impact Study Boundary

NEX2213/C/361/ENS/M54/510

Planning and Development Control Framework

NEX2213/C/361/ENS/M54/520

Landscape Resources

NEX2213/C/361/ENS/M54/521

Photos of Landscape Resource Sheet 1 of 2

NEX2213/C/361/ENS/M54/522

Photos of Landscape Resource Sheet 2 of 2

NEX2213/C/361/ENS/M54/530

Landscape Character Areas

NEX2213/C/361/ENS/M54/531

Photos of Landscape Character Areas Sheet 1 of 2

NEX2213/C/361/ENS/M54/532

Photos of Landscape Character Areas Sheet 2 of 2

NEX2213/C/361/ENS/M54/540

Key Visual Sensitive Receivers (VSR)

NEX2213/C/361/ENS/M54/541

Photos of Key Visually Sensitive Receivers (VSR) Sheet 1 of 4

NEX2213/C/361/ENS/M54/542

Photos of Key Visually Sensitive Receivers (VSR) Sheet 2 of 4

NEX2213/C/361/ENS/M54/543

Photos of Key Visually Sensitive Receivers (VSR) Sheet 3 of 4

NEX2213/C/361/ENS/M54/544

Photos of Key Visually Sensitive Receivers (VSR) Sheet 4 of 4

NEX2213/C/361/ENS/M54/550

Landscape and Visual Mitigation Measures

NEX2213/C/361/ENS/M54/551

Key Landscape Master Plan

NEX2213/C/361/ENS/M54/552

Landscape Master Plan (Sheet 1 of 3)

NEX2213/C/361/ENS/M54/553

Landscape Master Plan (Sheet  2 of 3)

NEX2213/C/361/ENS/M54/554

Landscape Master Plan (Sheet  3 of 3)

NEX2213/C/361/ENS/M54/555

North Side Ventilation Shafts (NSVS) Elevation

NEX2213/C/361/ENS/M54/556

South Side Ventilation Shafts (SSVS) Elevation

NEX2213/C/361/ENS/M54/557

Cooling Tower Landscape Plan

NEX2213/C/361/ENS/M54/558

Cooling Tower Elevation

NEX2213/C/361/ENS/M54/570

Photomontage Viewpoint Locations

NEX2213/C/361/ENS/M54/571

V1 Photomontage

NEX2213/C/361/ENS/M54/572

V2 Photomontage

NEX2213/C/361/ENS/M54/573

V3 Photomontage

NEX2213/C/361/ENS/M54/574

V4 Photomontage

NEX2213/C/361/ENS/M54/575

V5 Photomontage

NEX2213/C/361/ENS/M54/576

V6 Photomontage

NEX2213/C/361/ENS/M57/505

Layout of Assessment Areas 1-4 as Proposed in the Approved CAPS

NEX2213/C/361/ENS/M57/506

Layout of Assessment Area 5

NEX2213/C/361/ENS/M57/507

Potentially Contaminated Sites Identified and As-Built Sampling Locations at Area 1

NEX2213/C/361/ENS/M57/508

Potentially Contaminated Sites Identified and As-Built Sampling Locations at Area 2

NEX2213/C/361/ENS/M57/509

Potentially Contaminated Sites Identified and As-Built Sampling Locations at Area 2 and 3

NEX2213/C/361/ENS/M57/510

Potentially Contaminated Sites Identified and As-Built Sampling Location within Railway Tracks

NEX2213/C/361/ENS/M58/501

As-Built Sediment Sampling Locations Sheet 1 of 2

NEX2213/C/361/ENS/M58/502

As-Built Sediment Sampling Locations Sheet 2 of 2

NEX2213/C/361/ENS/M59/501

Locations of Water Quality Sensitive Receivers

NEX2213/C/361/ENS/M60/501

Locations of Air Sensitive Receivers

NEX2213/C/361/ENS/M60/502

Contours of Cumulative Maximum 1-Hour TSP Concentration in µg/m3 at 1.5m above Ground Level (Mitigated)

NEX2213/C/361/ENS/M60/503

Contours of Cumulative Maximum 24-Hour TSP Concentration in µg/m3 at 1.5m above Ground Level (Mitigated)

NEX2213/C/361/ENS/M60/504

Contours of Cumulative Annual TSP Concentration in µg/m3 at 1.5m above Ground Level (Mitigated)

NEX2213/C/361/ENS/M60/505

Contours of Cumulative Annual TSP Concentration in µg/m3 at 5.0m above Ground Level (Mitigated)

NEX2213/C/361/ENS/M60/506

Contours of Maximum Cumulative 1-Hour TSP Concentration in µg/m3 at 5.0m above Ground Level (Mitigated)

NEX2213/C/361/ENS/M60/507

Contours of Maximum Cumulative 24-Hour TSP Concentration in µg/m3 at 5.0m above Ground Level (Mitigated)

NEX2213/C/361/ENS/M60/514

Contours of Cumulative Maximum 1-Hour TSP Concentration in µg/m3 at 1.5m above Ground Level (Unmitigated)

NEX2213/C/361/ENS/M60/515

Contours of Cumulative Maximum 24-Hour TSP Concentration in µg/m3 at 1.5m above Ground Level (Unmitigated)

NEX2213/C/361/ENS/M60/516

Contours of Cumulative Annual TSP Concentration in µg/m3 at 1.5m above Ground Level (Unmitigated)


 


List of Appendices


Appendix No.

Title

Appendix 1.1

Schematic Diagram of Rail Network

Appendix 1.2

Alignments of Shatin to Central Link

Appendix 1.3

Re-alignment of Cheong Wan Road

Appendix 1.4

Alignment of Homantin Siding

Appendix 1.5

Location of Mong Kok Freight Terminal

Appendix 2.1

Graphical Illustrations of Alignment Options

Appendix 2.2

Typical Cross Section for Hung Hom Station

Appendix 3.1

Tentative Construction Programme for SCL (MKK – HUH)

Appendix 3.2

Geological Plan and Profile

Appendix 4.1

North Ventilation Building, Plant Rooms and Emergency Access (NOV) Master Plan

Appendix 4.2

North Ventilation Building, Plant Rooms and Emergency Access (NOV) Elevations

Appendix 4.3

V1 Photomontage

Appendix 5.1

Calculations of Emission Rates (SCL (MKK – HUH))

Appendix 5.2

Calculations of Emission Rates (SCL (HUH – ADM))

Appendix 5.3

Emission Inventory of SCL (TAW – HUH)

Appendix 5.4

Emission Inventory of KTE

Appendix 5.5

Justification for the percentage of Annual Average Active Area

Appendix 6.1A

Tentative Construction Programme for SCL (MKK – HUH) during Normal Day-time Working Hours

Appendix 6.1B

Tentative Construction Programme for SCL (MKK – HUH) during Restricted Hours

Appendix 6.2A

Construction Plant Inventory for SCL (MKK – HUH) during non-restricted hours (Unmitigated Scenario)

Appendix 6.2B

Construction Plant Inventory for SCL (MKK – HUH) during restricted hours (Unmitigated Scenario)

Appendix 6.3A

Locations of Notional Sources and Distance to NSRs for works during non-restricted hours

Appendix 6.3B

Locations of Notional Sources and Distance to NSRs for works during restricted hours

Appendix 6.4A

Topography Screening Effect between the Construction Site and Carmel Secondary School

Appendix 6.4B

Construction Works Areas during Restricted Hours

Appendix 6.5A

Sample Calculation of Construction Noise Levels during Non-Restricted Hours – Unmitigated Scenario

Appendix 6.5B

Sample Calculation of Construction Noise Levels during Restricted Hours – Unmitigated Scenario

Appendix 6.6A

Summary of Predicted Construction Noise Levels during Non-Restricted Hours – Unmitigated Scenario

Appendix 6.6B

Summary of Predicted Construction Noise Levels during Restricted Hours –  Unmitigated Scenario

Appendix 6.7

Segments of Proposed SCL for Rail Noise Assessment

Appendix 6.8

Calculation for Airborne Rail Noise Assessment for SCL (MKK – HUH) – Unmitigated Scenario

Appendix 6.9

Calculation of Fixed Plant Noise during Daytime and Evening Time Operation

Appendix 6.10

Calculation of Fixed Plant Noise during Night Time Operation

Appendix 6.11A

Construction Plant Inventory for SCL (MKK – HUH) during non-restricted hours (Mitigated Scenario)

Appendix 6.11B

Construction Plant Inventory for SCL (MKK – HUH) during restricted hours (Mitigated Scenario)

Appendix 6.11C

Typical Arrangements of Movable Noise Barriers for sample NSRs

Appendix 6.11D

Schematic Configuration of Noise Enclosure, Moveable Noise Barriers and Acoustic Panels

Appendix 6.12A

Sample Calculation of Construction Noise Levels during Non-Restricted Hours – Mitigated Scenario

Appendix 6.12B

Sample Calculation of Construction Noise Levels during Restricted Hours –  Mitigated Scenario

Appendix 6.13A

Summary of Predicted Construction Noise Levels during Non-Restricted Hours – Mitigated Scenario

Appendix 6.13B

Summary of Predicted Construction Noise Levels during Restricted Hours – Mitigated Scenario

Appendix 6.14

Proposed Mitigation Measures for Rail Noise in Operational Phase

Appendix 6.15

Calculation for Airborne Rail Noise Assessment for SCL (MKK – HUH) –Mitigated Scenario

Appendix 7.1

Sample Calculation of Ground-borne Noise Impacts from PME

Appendix 7.2

Force Density Level (FDL)

Appendix 7.3

Typical Point Source Response (PSR)

Appendix 7.4

Building Coupling Factor (BCF)

Appendix 7.5

Building Vibration Response (BVR)

Appendix 7.6

Operational Ground-borne Noise Results

Appendix 9.1

Breakdown of C&D Material by Works Area and Year

Appendix 9.2

Response from EPD for Waste Disposal to Landfill

Appendix 9.3

Sediment Sampling and Testing Plan

Appendix 9.4

Supplementary Sediment Sampling and Testing Plan

Appendix 9.5

Testing Results and Disposal Classification

Appendix 9.6

Results of Biological Screening of Category M and Category H (>10 LCEL) Samples

Appendix 9.7

Correspondences with MFC for Marine Disposal Reservation

Appendix 9.8

Minutes from Liaison Meetings with Other Projects for Reusing C&D Materials

Appendix 9.9

PFC endorsement memo on C&DMMP

Appendix 10.1

Approved Contamination Assessment Plan

Appendix 10.2

Approved Supplementary Contamination Assessment Plan 

Appendix 10.3

Supplementary Contamination Assessment Plan for Works Area in Area 1

Appendix 10.4

Contamination Assessment Report

Appendix 14.1

Key Assessment Assumptions and Methodologies