TABLE OF CONTENTS

 

1          INTRODUCTION

1.1        Project Background

1.2        Objectives of the EIA Study

1.3        Structure of the Report

2          PROJECT DESCRIPTION

2.1        Site Location

2.2        EIA Study Area

2.3        Need of the Project, Scope and Benefits

2.4        Considerations of Alternative Schemes for Tuen Mun Road Town Centre Section (TMRTCS) Traffic Improvement

2.5        Construction Methods and Engineering Requirements

2.6        Works Programme

2.7        Related Projects

3          NOISE IMPACT

3.1        Introduction

3.2        Environmental Legislation, Policies, Plans, Standards and Criteria

3.3        Description of the Environment

3.4        Noise Sensitive Receivers

3.5        Assessment Methodology

3.6        Identification of Impacts

3.7        Prediction and Evaluation of Impacts

3.8        Mitigation of Adverse Impacts

3.9        Evaluation of Residual Impacts

3.10      Monitoring and Audit Requirements

3.11      Summary

4          AIR QUALITY

4.1        Introduction

4.2        Environmental Legislation, Policies, Plans, Standards and Criteria

4.3        Description of the Environment

4.4        Air Quality Sensitive Receivers

4.5        Identification of Environmental Impacts

4.6        Assessment Methodology

4.7        Prediction and Evaluation of Environmental Impacts

4.8        Mitigation of Adverse Environmental Impacts

4.9        Evaluation of Residual Impacts

4.10      Environmental Monitoring and Audit

4.11      Conclusion

5          WATER QUALITY

5.1        Introduction

5.2        Environmental Legislation and Standards

5.3        Description of the Environment

5.4        Sensitive Receivers

5.5        Identification of Impacts

5.6        Assessment Methodology

5.7        Prediction and Evaluation of Impacts

5.8        Mitigation of Impacts

5.9        Evaluation of Residual Impact

5.10      Monitoring and Audit Requirements

5.11      Summary

6          WASTE MANAGEMENT

6.1        Introduction

6.2        Environmental Legislation, Policies, Plans and Standards

6.3        Assessment Methodology

6.4        Identification of Potential Sources of Impact

6.5        Prediction and Evaluation of Environmental Impacts

6.6        Mitigation Measures

6.7        Evaluation of Residual Impacts

6.8        Environmental Audit

6.9        Conclusion

7          ECOLOGICAL IMPACT

7.1        Introduction

7.2        Environmental Legislation, Policies, Plans, Standards and Criteria

7.3        Assessment Methodology

7.4        Description of the Environment

7.5        Ecological value

7.6        Identification of Impacts

7.7        Evaluation of Ecological Impacts

7.8        Cumulative Impacts

7.9        Mitigation Measures

7.10      Evaluation of Residual Impacts

7.11      Environmental Monitoring and Audit

7.12      Conclusion

7.13      References

 

8          LANDSCAPE AND VISUAL IMPACT ASSESSMENT

8.1        Introduction

8.2        Environmental Legislation, Standards and Guidelines

8.3        Assessment Methodology

8.4        Scope and Content of the Study

8.5        Considerations on Alternative Schemes for Tuen Mun Road Town Centre Section (TMRTCS) Traffic Improvement:

8.6        Comments on Landscape and Visual Issues received during Previous Consultations·····

8.7        Consideration of Alternative Landscape and Aesthetic Design Treatments for Noise Barriers and Enclosures

8.8        Review of Planning and Development Control Framework

8.9        Baseline Study

8.10      Landscape Impact Assessment

8.11      Visual Impact Assessment

8.12      Mitigation Measures

8.13      Residual Impact

8.14      Conclusion

9          LAND CONTAMINATION

9.1        Introduction

9.2        Environmental Legislation, Policies, Plans and Standards

9.3        Assessment Methodology

9.4        Description of the Environment

9.5        Identification of Potential Sources of Environmental Impact

9.6        Identification of Sensitive Receivers

9.7        Prediction and Evaluation of Environmental Impacts

9.8        Mitigation Measures for Land Contamination

9.9        Evaluation of Residual Impacts

9.10      Environmental Audit

9.11      Conclusion

10         ENVIRONMENTAL MONITORING AND AUDIT

10.1      Introduction

10.2      Air Quality

10.3      Noise

10.4      Water Quality

10.5      Waste Management

10.6      Ecology

10.7      Landscape and Visual

10.8      Land Contamination

11         CONCLUSION

11.1      Introduction

11.2      Environmental Outcome

11.3      Noise

11.4      Air Quality

11.5      Water Quality

11.6      Waste Management

11.7      Ecology

11.8      Landscape and Visual

11.9      Land Contamination

11.10    Environmental Monitoring and Audit

11.11    Overall Conclusion

12         IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES

 

 

List of Tables

Table 3.1               Permitted Hours of Operation for Percussive Piling (not involving the use of diesel, pneumatic and/or steam hammers)

Table 3.2               EIA-TM Daytime Construction Noise Limit

Table 3.3               Acceptable Noise levels (ANL, Leq 5min dB(A))

Table 3.4               Specified Powered Mechanical Equipment and Prescribed Construction Work Controlled under DA-TM

Table 3.5               EIA-TM Road Traffic Noise Planning Criteria

Table 3.6               Representative NSRs for Noise Assessments

Table 3.7               Unmitigated Construction Noise Levels at Representative NSRs During Normal Daytime Working Hours

Table 3.8               Listing of Quiet PME Items

Table 3.9               Level 2 Mitigated Construction Noise Levels at Representative NSRs During Normal Daytime Working Hours

Table 3.10             NSRs with Overall NLs Exceeding Noise Criteria and Contribution from ‘New’ Road NLs to Overall NLs Exceeding 1.0 dB(A)

Table 4.1               Hong Kong Air Quality Objectives

Table 4.2               Tunnel Air Quality guidelines (TAQG)

Table 4.3               Annual Average Concentrations of Pollutants in the Latest Five Years (Year 2002 - 2006) at Yuen Long Air Quality Monitoring Station

Table 4.4               Details of Representative Air Sensitive Receivers

Table 4.5               Emission Factors For Different Vehicle Classes (Peak Hour Flow Speed)

Table 5.1               Water Quality Objectives Statement for North Western WCZ

Table 5.2               Water Quality Index Grading and Compliance with the Water Quality Objectives for Watercourses in 2007

Table 6.1              Summary of Estimated Quantities of C&D Materials and Disposal Routes

Table 7.1               Habitat Type within the Study Area

Table 7.2               Ecological Value of Woodland and Shrubland in the Study Area

Table 7.3               Ecological Value of Plantation Woodland and Inactive/Active Agricultural Area in the Study Area

Table 7.4               Ecological Value of Town Park and Developed Area in the Study Area

Table 7.5              Ecological Value of Watercourse in the Study Area

Table 7.6               Evaluation of Fauna Species of Conservation Interest within the Study Area

Table 7.7               Overall Impact Evaluation of Woodland and Shrubland

Table 7.8               Overall Impact Evaluation of Plantation Woodland and Inactive/Active Agricultural Area

Table 7.9               Overall Impact Evaluation of Town Park and Developed Area / Village

Table 7.10             Overall Impact Evaluation of Watercourse

Table 8.1               Relationship between Receptor Sensitivity and Impact Magnitude in Defining Impact Significance

Table 8.2               List of the Landscape Resources / Landscape Character Areas and Their Sensitivity to Change

Table 8.3               Visual Sensitive Receivers (VSRs) and Their Sensitivity to Change

Table 8.4               Significant Landscape Impacts of the Proposed Works during Construction Phase

Table 8.5               Significance of Landscape Impacts in the Construction and Operation Phases

Table 8.6               Visual Sensitive Receivers (VSRs) and the magnitude to changes

Table 8.7               Significance of Visual Impacts in the Construction and Operation Phases (Note: All impacts adverse unless otherwise noted.)

Table 8.8               Proposed Construction Phase Landscape Mitigation Measures

Table 8.9               Proposed Operation Phase Landscape Mitigation Measures

Table 9.1               Reviewed Historical Aerial Photographs

Table 11.1             Summary of Key Environmental Outcomes/ Benefits

Table 12.1             Implementation Schedule for Noise Control

Table 12.2             Implementation Schedule for Air Quality Control

Table 12.3             Implementation Schedule for Water Quality Control

Table 12.4             Implementation Schedule for Waste Management

Table 12.5             Implementation Schedule for Ecology

Table 12.6             Implementation Schedule for Landscape and Visual

Table 12.7             Implementation Schedule for Land Contamination

 


List of Figures

Figure 1.1              Site Plan

Figure 2.1              TFS Option (Sam Shing Hui Slip Road Option)

Figure 2.2              Tunnel Option Layout Plan (Sheet 1 of 2)

Figure 2.3              Tunnel Option Layout Plan (Sheet 2 of 2)

Figure 2.4              Dual 3-Lane Widening combined with Modified Slip Road Option

Figure 3.1A           Locations of Representative Noise Sensitive Receivers (Sheet 1 of 3)

Figure 3.1B           Locations of Representative Noise Sensitive Receivers (Sheet 2 of 3)

Figure 3.1C           Locations of Representative Noise Sensitive Receivers (Sheet 3 of 3)

Figure 3.2A           Locations of New Road (Sheet 1 of 3)

Figure 3.2B           Locations of New Road (Sheet 2 of 3)

Figure 3.2C           Locations of New Road (Sheet 3 of 3)

Figure 3.3A           Proposed Mitigation Measures (Sheet 1 of 3)

Figure 3.3B           Proposed Mitigation Measures (Sheet 2 of 3)

Figure 3.3C           Proposed Mitigation Measures (Sheet 3 of 3)

Figure 3.4A           Location of Proposed Enhanced Low Noise Surfacing Material

Figure 3.4B           Location of Proposed Enhanced Low Noise Surfacing Material

Figure 4.1              Locations of Representative Air Sensitive Receivers

Figure 4.2              Contours of Maximum 1-hour Average NO2 Concentration in mg/m3 at 1.5m above Ground

Figure 4.3              Contours of Maximum 24-hour Average NO2 Concentration in mg/m3 at 1.5m above Ground

Figure 4.4              Contours of Maximum 24-hour Average RSP Concentration in mg/m3 at 1.5m above Ground

Figure 4.5              Contours of Maximum 1-hour Average NO2 Concentration in mg/m3 at 10m above Ground

Figure 4.6              Contours of Maximum 24-hour Average NO2 Concentration in mg/m3 at 10m above Ground

Figure 4.7              Contours of Maximum 24-hour Average RSP Concentration in mg/m3 at 10m above Ground

Figure 4.8              Contours of cumulative maximum 1-hour average NO2 concentration in mg/m3 at 8.5m above Ground (For San Hui Market)

Figure 4.9              Contours of cumulative maximum 24-hour average NO2 concentration in mg/m3 at 8.5m above Ground (For San Hui Market)

Figure 5.1              River Water Quality Monitoring Locations of Tuen Mun River Channel

Figure 7.1A           Habitat Map

Figure 7.1B           Habitat Map

Figure 7.1C           Habitat Map

Figure 8.1              Landscape and Visual Impact Study Area

Figure 8.1A           Review of Outline Zoning Plan

Figure 8.2.1          Baseline Landscape Resource Photos    

Figure 8.2A           Baseline Landscape Resources with Development Proposal Overlaid (Sheet 1 of 3)

Figure 8.2B           Baseline Landscape Resources with Development Proposal Overlaid (Sheet 2 of 3)

Figure 8.2C           Baseline Landscape Resources with Development Proposal Overlaid (Sheet 3 of 3)

Figure 8.3A           Baseline Landscape Character Areas

Figure 8.3B           Landscape Character Areas with Development Proposal Overlaid

Figure 8.4             Baseline Key VSRs and Primary Zone of Visual Influence with Development Proposal Overlaid

Figure 8.4.1          Baselines Key VSRs Photos at Local Level (Sheet 1 of 3)

Figure 8.4.2          Baselines Key VSRs Photos at Local Level (Sheet 2 of 3)

Figure 8.4.3          Baselines Key VSRs Photos at Local Level (Sheet 3 of 3)

Figure 8.5A           Broad Brush Tree Survey Plan with Development Overlaid (Sheet 1 of 3)

Figure 8.5B           Broad Brush Tree Survey Plan with Development Overlaid (Sheet 2 of 3)

Figure 8.5C           Broad Brush Tree Survey Plan with Development Overlaid (Sheet 3 of 3)

Figure 8.5.1          Existing Site Context Analysis

Figure 8.5.2A        Noise Enclosures and Barriers Facade Design Options (Sheet 1 of 4)

Figure 8.5.2B        Noise Enclosures and Barriers Facade Design Options (Sheet 2 of 4)

Figure 8.5.2C        Noise Enclosures and Barriers Facade Design Options (Sheet 3 of 4)

Figure 8.5.2D        Noise Enclosures and Barriers Facade Design Options (Sheet 4 of 4)

Figure 8.5.3          Green Roof Design Options for Noise Enclosures

Figure 8.5.4          Noise Enclosures and Barriers Colour Scheme Options

Figure 8.5.5          Preferred Landscape and Aesthetic Treatments on Noise Enclosures and Barriers

Figure 8.5.6          Preliminary Footbridge Aesthetic Designs

Figure 8.5.7          Preliminary Footbridge Aesthetic Designs - Details

Figure 8.6A           Landscape Master Plan (Sheet 1of 3)

Figure 8.6B           Landscape Master Plan (Sheet 2of 3)

Figure 8.6C           Landscape Master Plan (Sheet 3of 3)

Figure 8.6D           Compensatory Tree Planting Outside Boundary

Figure 8.6.1          Landscape Sections (Sheet 1 of 3)

Figure 8.6.2          Landscape Sections (Sheet 2 of 3)

Figure 8.6.3          Landscape Sections (Sheet 3 of 3)

Figure 8.6.4          Wall Panel Elevation

Figure 8.7             Key Plan for Photomontage Viewpoints

Figure 8.7.1          Viewpoint No.1 Photomontage

Figure 8.7.2          Viewpoint No.2 Photomontage

Figure 8.7.3          Viewpoint No.3 Photomontage

Figure 8.7.4          Viewpoint No.4 Photomontage

Figure 8.7.5          Viewpoint No.5 Photomontage

Figure 8.7.6          Viewpoint No.6 Photomontage

Figure 8.7.7          Viewpoint No.7 Photomontage

Figure 8.7.8          Viewpoint No.8 Photomontage

Figure 8.7.9          Viewpoint No.9 Photomontage

Figure 8.7.10         Viewpoint No.10 Photomontage

Figure 8.7.11         Viewpoint No.11 Photomontage

Figure 8.7.12         Viewpoint No.12 Photomontage

Figure 8.7.13         Viewpoint No.13 Photomontage

Figure 9.1             Location of Potential Land Contamination Area

Figure 9.2              Proposed Sampling Location for Preliminary Land Contamination Survey

 

 

Appendices

Appendix 3.1                 EPD’s Acceptance Letter on Selected Assessment Points

Appendix 3.2                 Photograph Records on Identified Representative Noise Sensitive Receivers

Appendix 3.3                 Schedule of Powered Mechanical Equipment

Appendix 3.4                 Traffic Information for Noise Assessment

Appendix 3.5                 Preliminary Construction Programme

Appendix 3.6A               Detailed Calculations of Unmitigated Construction Noise Levels

Appendix 3.6B               Detailed Calculations of Level 1 Mitigation Measures for Construction Noise

Appendix 3.6C               Detailed Calculations of Level 2 Mitigation Measures for Construction Noise

Appendix 3.6D               Detailed Calculations of Level 3 Mitigation Measures for Five Schools

Appendix 3.7A               Prevailing Road Traffic Noise Level in Year 2008 and 2025

Appendix 3.7B               Eligibility Assessment for Indirect Technical Remedies

Appendix 3.8                 Estimated Number of NSRs Protected or Benefited from Proposed Mitigation Measures

Appendix 3.9                 Sensitivity Tests

Appendix 4.1                 Year 2025 Traffic Flow Forecast with 16 Vehicle classes

Appendix 4.2                 Calculations of Emission Rates from Open Road Sections

                                    Figure A4.2   CALINE4 Road Plot

                                    Methodology paper for EMFAC-HK model

Appendix 4.3                 Details for the Calculations of Portals

                                    Figure A4.3   ISC3 Portal Location

Appendix 4.4                 Details of Emission Factors and Calculations of Looping Effects for Both Normal Condition and Congested Condition and Details Calculations of Emission Transfers from Enclosure I to Enclosure J

                                    Figure A4.4   Designated Assessment Points for Proposed and Existing Full Enclosures/Deckovers

Appendix 4.4a               Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section in front of Golden Court

Appendix 4.4b               Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section in front of Pui To Road Flyover

Appendix 4.4c               Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section in front of Tuen Mun Town Plaza Block 1 & 2

Appendix 4.4d               Detailed Calculations of In-tunnel Air Quality under Tuen Mun Town Plaza along Tuen Mun Road

Appendix 4.4e               Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section near Tuen King Building

Appendix 4.4f                Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section near Chi Lok Fa Yuen

Appendix 4.4g               Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section near Tsing Sin playground

Appendix 4.4h               Detailed Calculations of In-tunnel Air Quality along Tuen Mun Road Town Centre Section near Kam Fai Garden

Appendix 4.5                 Predicted Maximum 1-hour Average NO2, 24-hour Average NO2 and 24-hour Average RSP at the Representative ASRs

Appendix 4.6                 Sensitivity Test for 100% Portal Emission

    - Details for the Calculations of Portals (100% Portal Emission)

                                    - Predicted Maximum 1-hour Average NO2, 24-hour Average NO2 and 24-hour Average RSP at the Representative ASRs

                                    - Figure A4.6 Contours of Cumulative Maximum 1-hour Average NO2 Concentration in mg/m3 at 1.5m above Ground

Appendix 7.1A               Habitats Identified within the Works Area

Appendix 7.1B               Habitats Identified within the Works Area

Appendix 9.1                 Photos of the Site Neighbourings