SA1 to Agreement No. CE 54/2001 (CE)

WAN CHAI DEVELOPMENT PHASE II

PLANNING AND ENGINEERING REVIEW

ENVIRONMENTAL IMPACT ASSESSMENT REPORT

for

WAN CHAI DEVELOPMENT PHASE II AND CENTRAL-WAN CHAI BYPASS

CONTENTS

Page

VOLUME 3 – Marine Works

Part D - Schedule 2 DP4: Temporary typhoon shelter

1 INTRODUCTION..................................................................................................... 1-1

1.1 Project Background........................................................................................... 1-1

1.2 WDII Review................................................................................................... 1-2

1.3 Harbour-Front Enhancement Review.................................................................. 1-3

1.4 Environmental Impact Assessment..................................................................... 1-4

1.5 Objectives and Scope of the EIA Study............................................................... 1-5

1.6 Designated Projects under the EIAO.................................................................. 1-6

1.7 Relevant Approved EIA Reports........................................................................ 1-6

1.8 Structure of this Volume 3 – Part D.................................................................... 1-7

2 PROJECT DESCRIPTION....................................................................................... 2-1

2.1 Site Location..................................................................................................... 2-1

2.2 EIA Study Area................................................................................................ 2-1

2.3 Project Requirements, Scope and Benefits.......................................................... 2-1

2.4 Consideration of Alternatives.............................................................................. 2-2

2.5 Construction Methods and Engineering Requirements.......................................... 2-2

2.6 Operation of the Project..................................................................................... 2-2

2.7 Works Programme............................................................................................ 2-3

2.8 Related Projects................................................................................................ 2-3

3 AIR QUALITY.......................................................................................................... 3-1

3.1 Introduction....................................................................................................... 3-1

3.2 Environmental Legislation, Policies, Plans, Standards and Criteria......................... 3-1

3.3 Description of the Environment........................................................................... 3-2

3.4 Sensitive Receivers............................................................................................ 3-2

3.5 Identification of Environmental Impacts............................................................... 3-3

3.6 Mitigation of Adverse Environmental Impacts...................................................... 3-3

3.7 Evaluation of Residual Impacts........................................................................... 3-3

3.8 Environmental Monitoring and Audit................................................................... 3-3

3.9 Conclusion........................................................................................................ 3-3

4 NOISE........................................................................................................................ 4-1

4.1 Introduction....................................................................................................... 4-1

4.2 Environmental Legislation, Policies, Plans, Standards and Criteria......................... 4-1

4.3 Description of the Environment........................................................................... 4-3

4.4 Sensitive Receivers............................................................................................ 4-3

4.5 Assessment Methodology................................................................................... 4-4

4.6 Identification of Environmental Impacts............................................................... 4-7

4.7 Prediction and Evaluation of Environmental Impacts............................................ 4-7

4.8 Mitigation of Adverse Environmental Impacts...................................................... 4-8

4.9 Evaluation of Residual Impacts........................................................................... 4-8

4.10 Environmental Monitoring and Audit................................................................... 4-8

4.11 Conclusion........................................................................................................ 4-9

5 HYDRODYNAMICS AND WATER QUALITY...................................................... 5-1

5.1 Introduction....................................................................................................... 5-1

5.2 Water Sensitive Receivers................................................................................. 5-1

5.3 Environmental Legislation, Policies, Plans, Standards and Criteria......................... 5-2

5.4 Description of the Environment........................................................................... 5-6

5.5 Identification of Environmental Impact.............................................................. 5-10

5.6 Assessment Methodology................................................................................. 5-12

5.7 Prediction and Evaluation of Environmental Impacts........................................... 5-31

5.8 Mitigation of Adverse Environmental Impacts.................................................... 5-53

5.9 Evaluation of Residual Impacts......................................................................... 5-67

5.10 Environmental Monitoring and Audit.................................................................. 5-68

5.11 Conclusion....................................................................................................... 5-68

6 WASTE management......................................................................................... 6-1

6.1 Introduction....................................................................................................... 6-1

6.2 Environmental Legislation, Policies, Plans, Standards and Criteria......................... 6-1

6.3 Assessment Methodology................................................................................... 6-2

6.4 Baseline Conditions............................................................................................ 6-6

6.5 Identification of Potential Sources of Impact........................................................ 6-7

6.6 Prediction and Evaluation of Environmental Impacts............................................ 6-8

6.7 Mitigation Measures......................................................................................... 6-12

6.8 Evaluation of Residual Impacts......................................................................... 6-15

6.9 Environmental Audit......................................................................................... 6-15

6.10 Conclusion....................................................................................................... 6-15

7 LAND CONTAMINATION...................................................................................... 7-1

8 SEWERAGE IMPACT AND SEWAGE TREATMENT IMPLICATIONS............. 8-1

9 marine Ecology................................................................................................ 9-1

9.1 Introduction....................................................................................................... 9-1

9.2 Environmental Legislation, Policies, Plans, Standards and Criteria......................... 9-1

9.3 Assessment Methodology................................................................................... 9-2

9.4 Description of the Environment........................................................................... 9-5

9.5 Identification of Ecological Impacts................................................................... 9-14

9.6 Evaluation of Ecological Impacts....................................................................... 9-16

9.7 Mitigation of Adverse Environmental Impact..................................................... 9-19

9.8 Evaluation of Residual Impacts......................................................................... 9-19

9.9 Evaluation of Cumulative Impacts..................................................................... 9-20

9.10 Environmental Monitoring and Audit.................................................................. 9-20

9.11 Conclusion....................................................................................................... 9-21

9.12 References...................................................................................................... 9-21

10. Landscape and Visual Impact assessment........................................ 10-1

10.1 Introduction..................................................................................................... 10-1

10.2 Environmental Legislation, Standards and Guidelines.......................................... 10-1

10.3 Assessment Methodology................................................................................. 10-2

10.4 Scope and Content of the Study........................................................................ 10-6

10.5 Review of Planning and Development Control Framework................................. 10-8

10.6 Comments on Landscape and Visual Issues received during Consultations......... 10-11

10.7 Baseline Study............................................................................................... 10-12

10.8 Landscape Impact Assessment....................................................................... 10-32

10.9 Visual Impact Assessment.............................................................................. 10-39

10.10 Conclusion..................................................................................................... 10-44

11 CULTURAL HERITAGE....................................................................................... 11-1

11.1 Introduction..................................................................................................... 11-1

11.2 Review of Report NO: SDA8827...................................................................... 11-1

11.3 Mitigation of Adverse Impacts.......................................................................... 11-1

11.4 Residual Environmental Impact......................................................................... 11-1

11.5 Environmental Monitoring and Audit Requirements............................................ 11-1

11.6 Conclusion....................................................................................................... 11-2

12 ENVIRONMENTAL mONITORING AND AUDIT.............................................. 12-1

12.1 Introduction..................................................................................................... 12-1

12.2 Air Quality Impact........................................................................................... 12-1

12.3 Noise Impact................................................................................................... 12-1

12.4 Water Quality Impact....................................................................................... 12-2

12.5 Waste Management......................................................................................... 12-2

12.6 Land Contamination......................................................................................... 12-2

12.7 Marine Ecology............................................................................................... 12-2

12.8 Landscape and Visual...................................................................................... 12-3

12.9 Cultural Heritage............................................................................................. 12-3

13 IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES
.................................................................................................................................. 13-1

14 CONCLUSION........................................................................................................ 14-1

14.1 Introduction..................................................................................................... 14-1

14.2 Environmental Outcomes................................................................................ 14-12

14.3 Air Quality Impact......................................................................................... 14-16

14.4 Noise Impact................................................................................................. 14-17

14.5 Water Quality Impacts................................................................................... 14-17

14.6 Waste Management Implications..................................................................... 14-17

14.7 Land Contamination Impact............................................................................ 14-18

14.8 Marine Ecological Impact............................................................................... 14-18

14.9 Landscape and Visual Impact......................................................................... 14-19

14.10 Cultural Heritage Impact................................................................................ 14-19

14.11 Environmental Monitoring and Audit................................................................ 14-19

14.12 Overall Conclusion......................................................................................... 14-20