Development of Tseung Kwan O Area 137 and Associated Reclamation Sites –

Investigation Design and Construction

 

1.          introduction. 1-1

1.1        Project Background. 1-1

1.2        The Project 1-2

1.3        EIA Study Brief 1-2

1.4        Revised Recommended Outline Development Plan. 1-2

1.5        Designated Project under EIAO.. 1-3

1.6        Purpose of the EIA Study. 1-5

1.7        Objectives of this EIA Study. 1-6

1.8        Structure of the EIA Report 1-7

2.          project description. 2-1

2.1        Project Site Location and Site History. 2-1

2.2        Need for the Project 2-2

2.3        Appreciation of Existing Environment 2-5

2.4        Development Opportunities for Project Development 2-5

2.5        Development Constraints for Project Development 2-6

2.6        Description of the Project 2-9

2.7        Designated Projects. 2-17

2.8        Benefits of the Project 2-18

2.9        Overview of PODP. 2-20

2.10       Major Amendments from PODP to RODP. 2-25

2.11       Consideration of Alternatives and Development of the Preferred Option. 2-28

2.12       Proposed Construction Methodologies. 2-38

2.13       Consideration of Alternatives for Construction Methodologies. 2-40

2.14       Consideration of Alternatives for Reclamation Sequencing at TKO 132. 2-47

2.15       Key Environmental Problems. 2-48

2.16       Development Programme for the Project 2-50

2.17       Concurrent Projects. 2-55

3.          AIR QUALITY IMPACT ASSESSMENT. 3-1

3.1          Introduction 3-1

3.2        Environmental Legislation, Standards and Guidelines. 3-1

3.3        Description of Environment 3-4

3.4        Identification of Air Sensitive Receivers. 3-9

3.5        Identification of Environmental Impact 3-13

3.6        Assessment Methodology. 3-23

3.7        Prediction and Evaluation of Environmental Impacts. 3-36

3.8        Mitigation of Adverse Environmental Impacts. 3-55

3.9        Evaluation of Residual Impacts. 3-57

3.10       Environmental Monitoring and Audit 3-57

3.11       Environmental Acceptability of Schedule 2 Designated Projects. 3-58

3.12       Conclusion. 3-59

4.          Noise Impact Assessment. 4-1

4.1        Introduction. 4-1

4.2        Environmental Legislation, Standards and Guidelines. 4-1

4.3        Description of Existing Environment 4-4

4.4        Identification of Representative Noise Sensitive Receivers. 4-6

4.5        Identification of Environmental Impacts. 4-11

4.6        Assessment Methodology. 4-14

4.7        Prediction and Evaluation of Environmental Impacts. 4-17

4.8        Mitigation of Adverse Environmental Impacts. 4-32

4.9        Evaluation of Residual Impacts. 4-45

4.10       Environmental Monitoring and Audit 4-46

4.11       Environmental Acceptability of Schedule 2 Designated Projects. 4-47

4.12       Conclusion. 4-48

5             WATER QUALITY IMPACT. 5-1

5.1        Introduction. 4-1

5.2        Legislation, Standards, Guidelines and Criteria. 4-1

5.3        Description of the Environment 5-14

5.4        Concurrent Projects, Assessment Boundary and Water Sensitive Receivers. 5-17

5.5        Identification of Potential Impacts for Construction Phase. 5-21

5.6        Identification of Potential Impacts for Operation Phase. 5-26

5.7        Assessment Methodology. 5-33

5.8        Evaluation of Potential Impacts – Marine Construction. 5-50

5.9        Evaluation of Potential Impacts – Land-based Construction. 5-56

5.10       Evaluation of Potential Impacts – Operation Phase. 5-57

5.11       Mitigation Measures – Marine Construction 5-66

5.12       Mitigation Measures – Land-based Construction. 5-69

5.13        Mitigation Measures – Operation Phase. 5-72

5.14       Evaluation of Cumulative Impact 5-80

5.15       Residual Impact 5-81

5.16       Environmental Monitoring and Audit (EM&A) Requirements. 5-81

5.17        Environmental Acceptability of Schedule 2 Designated Projects  81

5.18       Conclusions. 5-81

6.          Sewerage aNd sewage treatment implications. 6-1

6.1        Introduction. 6-1

6.2        Design Guidelines and Standards. 6-1

6.3        Methodology and Design Parameters. 6-1

6.4        Development Parameters. 6-3

6.5        Sewage Flow Estimation. 6-4

6.6        Existing and Planned Conditions. 6-5

6.7        Proposed Sewerage. 6-6

6.8        Contingency plan for the proposed EPP and SPS. 6-10

6.9        Conclusion. 6-11

7.          Waste Management Implications. 7-1

7.1        Introduction. 7-1

7.2        Environmental Legislation, Standards and Guidelines. 7-1

7.3        Assessment Methodology. 7-4

7.4        Identification and Evaluation of Waste Management Implications. 7-4

7.5        Mitigation of Adverse Waste Management Implications. 7-43

7.6        Evaluation of Residual Environmental Impacts. 7-50

7.7        Environmental Acceptability of the Schedule 2 Designated Projects. 7-50

7.8        Conclusion. 7-51

8.          Land Contamination. 8-1

8.1        Introduction. 8-1

8.2        Environmental Legislation, Standards and Guidelines. 8-1

8.3        Assessment Methodology. 8-1

8.4        Description of the Environment 8-2

8.5        Identification of Potential Land Contamination Concern. 8-2

8.6        Site Investigation Plan. 8-11

8.7        Prediction and Evaluation of Potential Impacts. 8-17

8.8        Mitigation of Adverse Environmental Impacts. 8-18

8.9        Evaluation of Residual Impacts. 8-20

8.10       Environmental Monitoring and Audit 8-21

8.11       Conclusion. 8-21

9          ECOLOGical impact (TERRESTRIAL and marine) 9-1

9.1       Introduction. 9-1

9.2       Environmental Legislations, Standards and Guidelines. 9-1

9.3       Assessment Methodology. 9-1

9.4       Description of the Environment 9-8

9.5       Survey Findings. 9-17

9.6       Evaluation of Ecological Value. 9-31

9.7       Identification and Evaluation of Environmental Impacts. 9-56

9.8       Evaluation of Potential Ecological Impact 9-74

9.9       Cumulative Impacts. 9-85

9.10      Mitigation of Adverse Ecological Impacts. 9-86

9.11      Residual Ecological Impacts. 9-101

9.12      Environmental Monitoring and Audit 9-101

9.13      Conclusion. 9-102

9.14      References. 9-103

10.        Fisheries Impact Assessment. 10-1

10.1       Introduction. 10-1

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

10.3       Assessment Methodology. 10-1

10.4       Baseline Conditions. 10-4

10.5       Impact Identification and Evaluation. 10-12

10.6       Cumulative Impacts. 10-26

10.7       Mitigation of Adverse Environmental Impacts. 10-26

10.8       Evaluation of Residual Impacts. 10-27

10.9       Environmental Monitoring and Audit Requirements. 10-27

10.10     Conclusion. 10-27

10.11     References. 10-28

11.         Landscape and Visual Impact Assessment. 11-1

11.1       Introduction. 11-1

11.2       Scope and Content of the Study. 11-1

11.3       Environmental Legislation, Standards and Guidelines. 11-2

11.4       Assessment Methodology. 11-3

11.5       Baseline Study. 11-8

11.6       Landscape Impact Assessment 11-20

11.7       Visual Impact Assessment 11-31

11.8       Landscape and Visual Mitigation Measures. 11-42

11.9       Residual Impacts. 11-49

11.10     Cumulative Impacts from Concurrent Projects. 11-61

11.11     Environmental Monitoring and Audit 11-63

11.12     Conclusion. 11-63

12.        Impact On Cultutal Heritage. 12-2

12.1       Introduction. 12-2

12.2       Environmental Legislation, Standards and Guidelines. 12-2

12.3       Assessment Methodology. 12-3

12.4       Background of the Assessment Area. 12-6

12.5       Built Heritage Impact Assessment 12-20

12.6       Archaeological Impact Assessment 12-25

12.7       Marine Archaeological Investigation. 12-37

12.8       Conclusion. 12-39

12.9       Bibliography. 12-42

13.        Hazard to Life. 13-1

13.1       Introduction. 13-1

13.2       Environmental Legislation, Standards and Guidelines. 13-2

13.3       Study Objectives and Methodology. 13-2

13.4       Risk Assessment Associated with Planned Desalination Plant at TKO 137. 13-3

13.5       Risk Assessment Associated with Existing Synthetic Natural Gas (SNG) Production Plant 13-4

13.6       Risk Assessment Associated with Explosive Off-loading Pier 13-4

13.7       Risk Assessment Associated with Proposed Green Fuel Station (GFS) 13-6

13.8       Risk Assessment Associated with Proposed Effluent Polishing Plant 13-6

13.9        Secondary Impact and Cumulative Risk Assessment 13-6

13.10     Conclusions and Recommendations. 13-9

 

14.        Landfill Gas Hazard. 14-1

14.1       Introduction. 14-1

14.2       Environmental Legislation, Standards and Guidelines. 14-1

14.3       Assessment Methodology. 14-2

14.4       Description of Environment 14-6

14.5       Identification of Landfill Gas Generation, Characteristics and Hazards. 14-7

14.6       Quantitative Assessment of Potential Risk. 14-9

14.7       Recommended Protection Measures. 14-14

14.8       Environmental Monitoring and Audit 14-19

14.9       Conclusion. 14-20

 

15.          IMPACTS FROM ELECTRIC AND MAGNETIC FIELDS. 15-1

15.1        Introduction. 15-1

15.2        Environmental Legislation, Standards and Guidelines. 15-1

15.3        Identification and Evaluation of Potential Sources of Impacts and Sensitive Receivers. 15-1

15.4        Evaluation of Potential Impact 15-2

15.5        Mitigation Measures. 15-3

15.6        Cumulative Impact due to Concurrent Project 15-4

15.7        Evaluation of Residual Impacts. 15-5

15.8        Environmental Monitoring and Audit 15-5

15.9        Conclusion. 15-5

16.          ENVIRONEMTNAL MONITORING AND AUDIT REQUIREMENTS. 16-1

16.1        Introduction. 16-1

16.2        Air Quality. 16-1

16.3        Noise. 16-1

16.4        Water Quality. 16-2

16.5        Sewerage and Sewage Treatment Implications. 16-3

16.6        Waste Management Implications. 16-3

16.7        Land Contamination. 16-3

16.8        Ecology (Terrestrial and Marine) 16-4

16.9        Fisheries. 16-5

16.10      Landscape and Visual 16-5

16.11      Cultural Heritage. 16-6

16.12      Hazard to Life. 16-7

16.13      Landfill Gas Hazard. 16-7

16.14      Electric and Magnetic Fields. 16-8

16.15      Summary of EM&A Requirements for Schedule 2 Designated Projects Subject to Environmental Permit Application. 16-9

17.        Implementation Schedule of recommended Mitigation Measures. 17-1

17.1       Implementation Schedule of Recommended Mitigation Measures. 17-1

18.         Conclusions. 18-1

18.1       Introduction

18.2       Summary of Key Environmental Outcomes. 18-1

18.3       Population Protected from Environmental Impacts. 18-12

18.4       Environmentally Sensitive Areas Protected. 18-13

18.5       Overall Conclusion. 18-13