WEST KOWLOON RECLAMATION
CONTRACT NO. WK30
REMAINING ROADWORK STAGE 4
- LINK ROADS G & L
ENVIRONMENTAL IMPACT ASSESSMENT
40th Floor Hopewell Centre
183 Queen’s Road East
Wanchai
Hong Kong
Telephone (852) 2828 5757
Fax (852) 2827 1823
WEST KOWLOON RECLAMATION
CONTRACT NO. WK30
REMAINING ROADWORK STAGE 4
- LINK ROADS G & L
ENVIRONMENTAL IMPACT ASSESSMENT
40th Floor Hopewell Centre
183 Queen’s Road East
Wanchai
Hong Kong
Telephone (852) 2828 5757
Fax (852) 2827 1823
West Kowloon Reclamation
Contract No. WK30
Remaining Roadwork Stage 4 – Link Roads G & L
Environmental Impact Assessment
CONTENT
Page No.
1.1 Background of the Project 1- 1
1.2 The Approach 1- 2
1.3 Objectives of the EIA 1- 3
1.4 EIA Study Area 1- 3
1.5 Arrangement of the EIA Report 1- 4
2. DESCRIPTION OF THE PROJECT 2 - 1
2.2 Link Road G & L 2 - 1
2.3 Technical Requirements 2 - 1
2.4 Site Location and Site History 2 - 2
2.5 Nature, scope and Benefits of the Project 2 - 2
2.6 Scale of the Project 2 - 2
2.7 Project Timetable and Phasing of the Project 2 - 2
2.8 Means by which the Project will be Implemented 2 - 2
2.9 Scope and Duration of Construction Activities 2 - 2
2.10 Background and History of the Project 2 - 3
2.11 Description of Scenarios without the Project 2 - 3
3.1 Introduction 3 - 1
3.2 Legislation and Standards 3 - 1
3.2.1 Environmental Impact Assessment Ordinance 3 - 1
3.3 Baseline Conditions 3 - 2
3.4 Air Sensitive Receivers 3 - 2
3.5 Construction Phase 3 - 3
3.5.1 Potential Sources of Impact 3 - 3
3.5.2 Construction Dust Assessment Methodology 3 - 3
3.5.3 Evaluation of Impact 3 - 4
3.5.4 Recommended Mitigation Measures 3 - 5
3.5.6 EM&A Requirement 3 - 6
3.5.7 Conclusions 3 - 7
3.6 Operational Phase 3 - 7
3.6.1 Potential Source of Impact 3 - 7
3.6.2 Assessment Methodology 3 - 7
3.6.3 Evaluation of Impacts 3 – 8
3.6.4 Environmental Implications 3 - 8
3.6.5 Residual Impacts 3 - 8
3.6.6 EM&A Requirement 3 - 8
Page No.
4.2 Governmental Legislation and Standards 4 - 1
4.2.5 Baseline Condition 4 - 4
4.3 Construction Phase 4 - 6
4.3.1 Assessment Methodology 4 - 6
4.3.2 Evaluation of Impacts 4 - 7
4.3.3 Mitigation Measures 4 - 8
4.4 Operational Phase 4 - 10
4.4.1 Road Traffic Noise 4 - 10
4.4.2 Noise Sensitive Receivers 4 - 10
4.4.3 Assessment Methodology 4 - 11
4.4.4 Evaluation of Impacts 4 - 12
4.4.5 Environmental Implications 4 -13
4.5 Conclusion 4 - 13
4.5.1 Construction Phase 4 - 13
4.5.2 Operational Phase 4 - 13
5.1 Introduction 5 - 1
5.2 Environmental Legislation and Standards 5 - 1
5.3 Assessment Methodology 5 - 2
5.3.1 General 5 - 2
5.4 Construction Waste Impact 5 - 2
5.4.1 Potential Sources of Impact 5 - 2
5.4.2 Site Clearance Waste 5 - 2
5.4.3 Excavated Materials 5 - 2
5.4.4 Construction and Demolition Waste 5 - 3
5.4.5 Chemical Waste 5 - 3
5.4.6 General Refuse 5 - 3
5.5 Evaluation of Impacts 5 - 3
5.5.1 Site Clearance Waste 5 - 4
5.5.2 Excavation Material 5 - 4
5.5.3 Construction and Demolition Waste 5 - 4
5.5.4 Chemical Waste 5 - 5
5.5.5 General Refuse 5 - 5
5.6 Mitigation Measures 5 - 5
5.6.1 Introduction 5 - 5
5.6.2 Waste Management Hierarchy 5 - 6
5.6.3 Storage, Collection and Transport of Waste 5 - 6
5.6.4 Excavated/Imported Filling Material 5 - 6
5.6.5 Construction & Demolition Waste 5 - 7
5.6.6 Chemical Waste 5 - 8
5.6.7 General Refuse 5 - 8
5.7 Environmental Monitoring and Audit Requirements 5 - 9
5.8 Conclusions 5 - 9
Page No.
6. ENVIRONMENTAL MONITORING & AUDIT 6 - 1
6.1 Construction Phase 6 - 1
6.1.1 Air 6 - 1
6.1.2 Noise 6 - 1
6.1.3 Waste Management 6 - 2
6.2 Operational Noise 6 - 3
6.2.1 Noise 6 - 3
6.2.2 Noise Parameters 6 - 3
6.2.3 Monitoring Equipment 6 - 3
6.2.4 Monitoring Locations 6 - 3
6.2.5 Comparison of Measured and Modelled Results 6 - 4
7. CONCLUSIONS AND RECOMMENDATIONS 7 - 1
7.1 Air 7 - 1
7.2 Noise 7 - 1
7.3 Wastes 7 - 2
7.4 Recommendations 7 - 2
7.5 Summary of Environmental Outcome 7 - 2
8. IMPLEMENTATION SCHEDULE 8 - 1
3.1 Hong Kong Air Quality Objectives (mm-3)
3.2 Background Air Quality
3.3 Representative Air Sensitive Receivers
3.4 Emission Factors for Various Construction Activities
3.5 Predicted Hourly and Daily TSP Levels (mm-3)
3.6 Mitigated Hourly and Daily TSP Levels (mm-3)
3.7 Predicted Air Quality Impacts (mm-3)
4.1 Permitted Hours of Operation for Percussive Piling
4.2 EIAO-TM Daytime Construction Noise Standards (Leq30 min dB(A))
4.3 Acceptable Noise Levels (ANL, Leq30 min dB(A))
4.4 EIAO-TM Road Traffic Noise Planning Criteria
4.5 Location of Noise Sensitive Receivers - Construction Phase
4.6 Cumulative Noise Impacts (No Mitigation Measures for Link Roads G & L) - (Leq30 min dB(A))
4.7 Sound Power Levels for Specific Silenced PME
4.8 Cumulative Noise Impacts - With use of quiet plant for Link Roads G & L (Mitigation 1) - (Leq30 min dB(A))
4.9 Location of Noise Sensitive Receivers - Operational Phase
LIST OF TABLES (CONT’D)
6.1 Air Monitoring Locations
6.2 Noise Monitoring Station
6.3 Operational Noise Monitoring Stations
3.1(a)&(b) Locations of Air Sensitive Receivers
3.2(a) Hourly NO2 Concentration Isopleths at Ground Level
3.2(b) Daily RSP Concentration Isopleths at Ground Level
4.1(a)&(b) Locations of Noise Sensitive Receivers
4.2(a) Master Layout Plan of Site 10
4.2(b) Typical Floor Plan – Site 10
4.2(c) Diagrammatic Section Plan for Site 10
4.2(d) Master Layout Plan of KMB CDA Site
4.2(e) Diagrammatic Section Plan for KMB CDA Site
4.2(f) Typical Floor Plan – Block 1 of KMB CDA Site
4.2(g) Typical Floor Plan – Blocks 2 & 3 of KMB CDA Site
4.2(h) Typical Floor Plan – Block 4 of KMB CDA Site
4.3(a) Direct Noise Mitigation Measures (Route 16)
4.3(b) Direct Noise Mitigation Measures (Route 9)
4.3(c) Direct Noise Mitigation Measures (West Kowloon Highway)
B Emission Factors for NO2 & RSP
C Samples of Air Modelling Input & Output Files (FDM & CALINE4)
E Calculation of Construction Noise
F Road Traffic Noise Modelling Results
G Samples of Road Traffic Noise Modelling Input
H Correspondence from Transport Department
I Correspondence from Planning Department
J Comments and Response for Draft EIA Report
K Environmental Outcome Profile
