Volume
1 of 2
1.1 Background
1.2 The
Assignment
1.3 Purpose
and Objectives of this EIA Study
1.4 Approach
to EIA Study
1.5 EIA
Study Scope
1.6 Structure
of this Report
2. CONSIDERATIONS OF ALTERNATIVE SCHEMES
2.1 Introduction
2.2 Project
Need
2.3 “Without
Project” Alternative
2.4 Alternative
Options
2.5 Preferred
Option
3.1 Description
of the Site Area
3.2 Design
of the Workshop
3.3 Construction
Methodology
3.4 Project
Implementation Programme
3.5 Concurrent
Projects
3.6 Identification
of Key Environmental Issues
4.1 Introduction
4.2 Environmental
Legislation, Standards and Guidelines
4.3 Noise
Sensitive Receivers
4.4 Baseline
Conditions
4.5 Identification
of Potential Noise Impacts
4.6 Concurrent
Projects
4.7 Assessment
Approach
4.8 Construction
Noise Assessment
4.9 Operational
Noise Assessment
4.10 Residual
Impacts
4.11 Environmental
Monitoring and Audit
4.12 Conclusion
5 AIR
QUALITY IMPACT ASSESSMENT
5.1 Introduction
5.2 EIA
Study Brief
5.3 Environmental
Legislation and Guidelines
5.4 Existing
Environment
5.5 Identification
of Air Sensitive Receivers
5.6 Identification
of Potential Air Quality Impacts
5.7 Concurrent
Projects
5.8 Construction
Phase Assessment Methodology
5.9 Operational
Phase Assessment Methodology
5.10 Construction
Dust Impact Assessment
5.11 Operational
Air Quality Assessment
5.12 Residual
Impacts
5.13 Environmental
Monitoring and Audit
5.14 Conclusion
6. WATER QUALITY IMPACT ASSESSMENT
6.1 Introduction
6.2 Environmental
Legislation and Standards
6.3 Existing
Water Quality
6.4 Water
Sensitive Receivers
6.5 Assessment
Methodology
6.6 Construction Phase Impact Assessment
6.7 Operational Phase Impact Assessment
6.8 Residual Impacts
6.9 Environmental Monitoring and Audit
6.10 Conclusion
7. WASTE MANAGEMENT IMPLICATION AND LAND CONTAMINATION
7.1 Introduction
7.2 Environmental
Legislation and Standards
7.3 Waste
Management
7.4 Land
Contamination
7.5 Residual
Impacts
7.6 Environmental Monitoring and Audit
7.7 Conclusion
8. LANDSCAPE AND VISUAL IMPACT ASSESSMENT
8.1 Introduction
8.2 Legislation,
Standards and Guidelines
8.3 Assessment Methodology
8.4 Review of Planning and Development Control Framework
8.5 Landscape and Visual Baseline Study
8.6 Landscape and Visual Impact Assessment
8.7 Landscape and Visual Mitigation Measures
8.8 Residual Impacts
8.9 Environmental Monitoring and Audit
8.10 Conclusion
9. SUMMARY
OF ENVIRONMENTAL OUTCOMES
9.1 Introduction
10. ENVIRONMENTAL
MONITORING AND AUDIT
10.1 Introduction
10.2 EM&A Requirements
10.3 Noise
10.4 Air Quality
10.5 Water Quality
10.6 Waste Management and Land Contamination
10.7 Landscape and Visual Impact Assessment
11.1 Introduction
11.2 Noise Impact
11.3 Air Quality Impact
11.4 Water
Quality Impact
11.5 Waste Management Implication and Land Contamination
11.6 Landscape and Visual Impacts
12. IMPLEMENTATION
SCHEDULE AND RECOMMENDED MITIGATION MEASURES
12.1 Introduction
TABLES
Table
2.1 Comparison of
Servicing Capacity Design Options
Table
2.2 Potential
Environmental Benefits and Dis-benefits of Servicing Capacity Design Options
Table
2.3 Comparison of Building
Design Options
Table
2.4 Potential
Environmental Benefits and Dis-benefits of Building Design Options
Table
2.5 Comparison of Local
Exhaust Options
Table
2.6 Potential
Environmental Benefits and Dis-benefits of Local Exhaust Design Options
Table
2.7 Potential
Environmental Benefits and Dis-benefits of Construction Methodology Options
Table
3.1 List of Potential
Concurrent Projects
Table
3.2 Summary of Works Items
and Environmental Issues
Table 4.1 Daytime Construction
Noise Limits
Table
4.2 Construction Noise
Criteria for Activities other than Percussive Piling
Table
4.3 Area Sensitivity
Ratings of NSRs
Table 4.4 Acceptable Noise Level during
Operational Phase
Table 4.5 Road Traffic Noise Planning Criteria
Table 4.6 Representative Noise Sensitive Receivers
Table 4.7 PME Identified as Major Noise Sources
Table 4.8 Predicted
Unmitigated Construction Noise Levels for Representative NSRs
Table 4.9 Mitigated Quiet PME
Table
4.10 Mitigation measures
Adopted for PME for Construction Works
Table 4.11 Predicted Mitigated Construction
Noise Levels for Representative NSRs
Table 4.12 Operational Noise Levels for Representative NSRs
Table 4.13 Operational
Noise Levels for NSR8
Table 4.14 Predicted Cumulative Operational
Noise Levels for Representative NSRs
Table
5.1
Table
5.2 EPD Air Quality
Monitoring Data at Kwun Tong AQMS (2006 to 2010)
Table
5.3 Representative Air
Sensitive Receivers
Table
5.4 Concurrent Projects
with Respect to Air Quality
Table
5.5 Potential Emission
Sources of Concurrent Projects during Operational Phase of the Project
Table
5.6 Annual Average
Concentrations of Pollutants at EPD’s AQMS (Kwun Tong)
Table
5.7 Vehicle Classification
in EMFAC-HK
Table
5.8 Road Groupings
Table
5.9 Calculated Emission
Rates of NOx and RSP for the Project
Table
5.10 Comparison of Emission
Inventory
Table
5.11 Predicted Maximum
Overall 1-Hour, 24-hour and Annual Average of NO2 and RSP
Concentrations (mg/m3) at ASRs
(including Background levels)
Table 6.1 Summary of WQOs for Eastern Buffer WCZ
Table
6.2 WSD Standards at
Table 6.3 Marine
Water Quality for Eastern Buffer WCZ in 2010 at EM1, EM2, EM3, ET1 and ET2
Table
6.4 Water Sensitive
Receivers within Eastern Buffer WCZ
Table
6.5 Recommended Unit Flow
Factor
Table
6.6 Estimated ADWF (in
accordance with GESF)
Table
6.7 Recommended Peaking
Factors for Sewers and Sewerage Facilities
Table
7.1 Summary of C&D
Materials Arising from the Project
Table
7.2 Recommended Waste
Disposal Sites
Table
8.1 Matrix of Significance
of Landscape and Visual Impact
Table
8.2 Tree Species
Composition within Survey Area
Table 8.3 Summary
of Proposed Action for Surveyed Trees in Tree Survey Area
Table
8.4 Identified VSRs and
Their Sensitivity to Change
Table
8.5 Magnitude of Change
for LRs and LCAs and Significance of Landscape Impacts during Construction and
Operational Phases
Table 8.6 Magnitude
of Change for Identified VSRs and Significance of Visual Impacts during
Construction and Operational Phases
Table
9.1 Summary of Key
Environmental Outcomes
Table
10.1 Summary of EM&A
Requirements
Table
12.1 Implementation Schedule
for Environmental Mitigation Measures
Volume
2 of 2
FIGURES
Figure 1.1 Site Location of EMSD Workshop in
Chai Wan
Figure 3.1 Ground Floor Layout Plan of the
Preliminary Design
Figure 3.2 Roof Layout Plan of the
Preliminary Design
Figure 3.3 Elevation of the Preliminary
Design
Figure 3.4 Sandwich Roof Cover Typical
Section
Figure 4.1 Noise Sensitive Receivers Identified within 300m of
the Project
Figure 4.2 Locations of the Bus Depots
Figure 4.3 Locations of Notional Sources for Construction Phase
Figure 4.4 Locations of Notional Sources for Operational Phase
Figure 4.5 Schematic of Noise Mitigation for Speedometer
Calibrator for NSR 8
Figure 5.1 Locations of Representative Air Sensitive Receivers
Figure 5.4 Overall Cumulative 1-hour NO2 Concentration
at 1.5m above Ground Level
Figure 5.5 Overall Cumulative 24-hour NO2
Concentration at 1.5m above Ground Level
Figure 5.6 Overall Cumulative Annual NO2 Concentration
at 1.5m above Ground Level
Figure 5.7 Overall Cumulative 24-hour RSP Concentration at 1.5m
above Ground Level
Figure 5.8 Overall Cumulative Annual RSP Concentration at 1.5m
above Ground Level
Figure 6.1 Water Sensitive Receivers within
Eastern Buffer WCZ
Figure 6.2 Proposed Preliminary Design
Drainage and Sewerage layout Plan
Figure 8.1 Site Location and Environs
Figure 8.2 Review of Planning and Control Development Framework
Figure 8.3 Baseline Landscape Resources
Figure 8.4 Landscape Character Areas (LCAs)
Figure 8.5 Tree Recommendation Plan
Figure 8.6 Visual Envelope (VE)
Figure 8.7 Visual Sensitive Receivers (VSRs) and Vantage Points
(VPs)
Figure 8.9 Compensatory Planting Location
Figure 8.10 Preliminary Compensatory Planting Plan
APPENDICES
Appendix 3.1 Construction Programme
Appendix 4.2 Brochures for the Equipment Employed within the Workshop
Appendix 4.4 Construction Schedule with Air-borne Noise Assessment -
Unmitigated Scenario
Appendix 4.6 Construction Schedule with Air-borne Noise Assessment -
Mitigated Scenario
Appendix 4.7 Operation Air-borne Noise Assessment – Unmitigated Scenario
Appendix 4.8 Operation Air-borne Noise Assessment – Mitigated Scenario
Appendix 5.1 Location Plan for EIA Traffic Forecast and Traffic Data
Appendix 5.2 Vehicle Class Details
Appendix 5.3 Implementation Schedule of Vehicle Emission Standards in
Hong Kong
Appendix 5.4 Details of Adjustments on Exhaust Technology Fractions in
Each Vehicle Class
Appendix 5.5 Vehicle Population
Appendix 5.6 Trips per Vehicle-Mile-Travelled (VMT)
Appendix 5.7 Hourly Temperature and Relative Humidity Profile for the
Modelling of EMFAC-HK
Appendix 5.8 Hourly Speed Profiles and Trips per Vehicle-Mile-Travelled
(VMT)
Appendix 5.9 Information of the Emission Rates for the Project
Appendix 5.10 Information of the Emission Rates for Bus Depots
Appendix 5.11 Sensitivity Test of Assessment Year
Appendix 5.12 Emission Factors and Composite Emission Factors for NOx
and RSP in Year 2014
Appendix 6.1 Hydraulic Assessment for the Existing Sewerage Systems
Appendix 8.1 Tree Assessment Schedule