Content


Chapter    Title                                                                                                                           Page

1.1              Background___________________________________________________________________ 1-1

1.2              Designated Projects under EIA Ordinance____________________________________________ 1-1

1.3              Objectives of the EIA Study________________________________________________________ 1-2

1.4              Key Environmental Issues________________________________________________________ 1-3

1.5              Use of Relevant Studies__________________________________________________________ 1-5

1.6                  Structure of the EIA Report________________________________________________________ 1-5

2.1              Project Background______________________________________________________________ 2-1

2.2              Project Components_____________________________________________________________ 2-2

2.3              Need for the Project_____________________________________________________________ 2-2

2.4              Scope of the Project_____________________________________________________________ 2-4

2.5              Public Consultation______________________________________________________________ 2-6

2.6              Consideration of Design Alternatives________________________________________________ 2-7

2.7              Description of Construction Works_________________________________________________ 2-21

2.8              Consideration of Construction Methodologies________________________________________ 2-25

2.9              Tentative Construction Programme_________________________________________________ 2-33

2.10                Concurrent Projects____________________________________________________________ 2-34

3.1              Introduction____________________________________________________________________ 3-1

3.2              Environmental Legislations, Standards and Guidelines__________________________________ 3-1

3.3              Baseline Condition and Sensitive Receivers___________________________________________ 3-3

3.4              Identification of Pollution Sources and Assessment Methodology___________________________ 3-6

3.5              Identification, Prediction and Evaluation of Environmental Impact__________________________ 3-20

3.6              Mitigation of Adverse Environmental Impact__________________________________________ 3-36

3.7              Evaluation of Residual Impact_____________________________________________________ 3-38

3.8              Environmental Monitoring and Audit________________________________________________ 3-39

3.9                  Conclusion___________________________________________________________________ 3-39

4.1              Introduction____________________________________________________________________ 4-1

4.2              Environmental Legislation, Standards and Guidelines___________________________________ 4-1

4.3              Assessment Area, Noise Sensitive Receivers and Background Noise Climate________________ 4-5

4.4              Construction Phase Impact________________________________________________________ 4-8

4.5              Operation Phase Impact_________________________________________________________ 4-22

4.6              Environmental Monitoring and Audit________________________________________________ 4-35

4.7                  Conclusion___________________________________________________________________ 4-35

5.1              Introduction____________________________________________________________________ 5-1

5.2              Environmental Legislation, Standards and Guidelines___________________________________ 5-1

5.3              Assessment Area, Water Sensitive Receivers and Description of the Environment______________ 5-4

5.4              Assessment Methodology_________________________________________________________ 5-9

5.5              Identification, Prediction and Evaluation of Environmental Impact__________________________ 5-10

5.6              Mitigation of Adverse Environmental Impact__________________________________________ 5-14

5.7              Evaluation of Residual Impact_____________________________________________________ 5-19

5.8              Environmental Monitoring and Audit________________________________________________ 5-19

5.9                  Conclusion___________________________________________________________________ 5-19

6.1              Introduction____________________________________________________________________ 6-1

6.2              Assessment Approach and Methodology_____________________________________________ 6-1

6.3              Design Assumptions, Parameters and Criteria_________________________________________ 6-2

6.4              Existing Sewerage Conditions_____________________________________________________ 6-5

6.5              Estimated Pollutant Loads due to the Project__________________________________________ 6-7

6.6              Proposed Mitigation Measures_____________________________________________________ 6-9

6.7              Short Term Measures during Construction Phase_____________________________________ 6-13

6.8              Environmental Monitoring and Audit________________________________________________ 6-13

6.9                  Conclusion___________________________________________________________________ 6-13

7.1              Introduction____________________________________________________________________ 7-1

7.2              Environmental Legislation, Standards and Guidelines___________________________________ 7-1

7.3              Assessment Methodology_________________________________________________________ 7-2

7.4              Identification, Prediction and Evaluation of Environmental Impact___________________________ 7-4

7.5              Opportunities for Reducing Waste Generation and Maximise Re-Use_______________________ 7-7

7.6              Mitigation of Adverse Environmental Impacts__________________________________________ 7-9

7.7              Impacts Caused by Handling, Collection and Disposal of C&D Materials____________________ 7-11

7.8              Waste Handling Procedures and Routes____________________________________________ 7-11

7.9              Evaluation of Residual Impacts____________________________________________________ 7-14

7.10            Environmental Monitoring and Audit________________________________________________ 7-14

7.11                Conclusion___________________________________________________________________ 7-14

8.1              Introduction____________________________________________________________________ 8-1

8.2              Environmental Legislation, Standards and Guidelines___________________________________ 8-1

8.3              Description of the Environment/ Baseline Conditions____________________________________ 8-1

8.4              Assessment Methodology_________________________________________________________ 8-4

8.5              Identification of Environmental Impact________________________________________________ 8-4

8.6              Prediction and Evaluation of Environmental Impact______________________________________ 8-6

8.7              Mitigation of Adverse Environmental Impact___________________________________________ 8-8

8.8              Evaluation of Residual Impact______________________________________________________ 8-9

8.9              Environmental Monitoring and Audit_________________________________________________ 8-9

8.10                Conclusion____________________________________________________________________ 8-9

9.1              Introduction____________________________________________________________________ 9-1

9.2              Background___________________________________________________________________ 9-1

9.3              Environmental Legislation, Standards and Guidelines___________________________________ 9-7

9.4              Assessment Area and Ecological Survey Methodology___________________________________ 9-8

9.5              Ecological Baseline Condition____________________________________________________ 9-12

9.6              Habitat and Species Evaluation__________________________________________________ 9-104

9.7              Identification / Evaluation of Environmental Impact and Recommendation of Mitigation Measures 9-134

9.8              Mitigation Measures___________________________________________________________ 9-172

9.9              Evaluation of Cumulative Impact__________________________________________________ 9-181

9.10            Evaluation of Residual Impact____________________________________________________ 9-186

9.11            Environmental Monitoring and Audit_______________________________________________ 9-186

9.12            Conclusion__________________________________________________________________ 9-187

9.13                Reference___________________________________________________________________ 9-189

10.1            Introduction___________________________________________________________________ 10-1

10.2            Environmental Legislation, Standards and Guidelines__________________________________ 10-1

10.3            Assessment Methodology________________________________________________________ 10-1

10.4            Baseline Condition_____________________________________________________________ 10-1

10.5            Identification, Prediction and Evaluation of Environmental Impact__________________________ 10-2

10.6            Mitigation of Adverse Environmental Impact__________________________________________ 10-2

10.7            Evaluation of Residual Impact_____________________________________________________ 10-2

10.8            Environmental Monitoring and Audit________________________________________________ 10-2

10.9            Conclusion___________________________________________________________________ 10-3

10.10              References___________________________________________________________________ 10-3

11.1            Introduction___________________________________________________________________ 11-1

11.2            Environmental Legislation, Standards and Guidelines__________________________________ 11-1

11.3            Scope and Content of the Study___________________________________________________ 11-2

11.4            Planning and Development Control Framework______________________________________ 11-10

11.5            Baseline Conditions___________________________________________________________ 11-15

11.6            Landscape Impact Assessment__________________________________________________ 11-53

11.7            Visual Impact Assessment_____________________________________________________ 11-105

11.8            Cumulative Effects___________________________________________________________ 11-148

11.9            Environmental Monitoring and Audit______________________________________________ 11-150

11.10          Conclusion_________________________________________________________________ 11-151

11.11              Glare Impact Assessment_____________________________________________________ 11-161

12.1            Introduction___________________________________________________________________ 12-1

12.2            Environmental Legislations, Standards and Guidelines_________________________________ 12-1

12.3            Assessment Methodology________________________________________________________ 12-3

12.4            Baseline Condition_____________________________________________________________ 12-7

12.5            Identification, Prediction and Evaluation of Potential Impacts____________________________ 12-32

12.6            Mitigation Measures (Preservation Proposals)_______________________________________ 12-43

12.7            Evaluation of Residual Impact____________________________________________________ 12-49

12.8            Environmental Monitoring and Audit_______________________________________________ 12-49

12.9                Conclusion__________________________________________________________________ 12-50

13.1            Introduction___________________________________________________________________ 13-1

13.2            Air Quality Impact______________________________________________________________ 13-1

13.3            Noise Impact_________________________________________________________________ 13-1

13.4            Water Quality Impact____________________________________________________________ 13-1

13.5            Sewerage and Sewage Treatment Implications_______________________________________ 13-2

13.6            Waste Management Implications__________________________________________________ 13-2

13.7            Land Contamination____________________________________________________________ 13-2

13.8            Ecological Impact______________________________________________________________ 13-2

13.9            Fisheries Impact_______________________________________________________________ 13-3

13.10          Landscape, Visual and Glare Impact_______________________________________________ 13-3

13.11              Impact on Cultural Heritage______________________________________________________ 13-4

14.1            General______________________________________________________________________ 14-1

14.2                Summary of Environmental Outcomes, Benefits and Mitigation Measures___________________ 14-1

15.1                General______________________________________________________________________ 15-1

 

Tables

Table 2.1:__ Summary of Environmental Benefits and Dis-Benefits of the BCP Location Options_ 2-8

Table 2.2:__ Final Screened Options_ 2-15

Table 2.3:__ Summary of Environmental Benefits and Dis-Benefits of the Alignment Options_ 2-17

Table 2.4:__ Summary of Potential Concurrent Projects_ 2-38

Table 3.1:__ Hong Kong Air Quality Objectives_ 3-1

Table 3.2:__ Tunnel Air Quality Guidelines_ 3-2

Table 3.3:__ Representative ASRs Identified for the Assessment 3-4

Table 3.4:__ Assumptions for Calculation of Dust Emission Factors_ 3-6

Table 3.5:__ Vehicle Classification in the EMFAC-HK Model 3-10

Table 3.6:__ Worst Case Emission Factors as Predicted by EMFAC-HK Model 3-13

Table 3.7:__ Forecast of Idling Vehicles in Kiosks, L&UL and PTI in Peak Hour 3-16

Table 3.8:__ Idling Emissions from Kiosks, L&UL areas and PTI 3-17

Table 3.9:__ Predicted Cumulative Hourly Average TSP Concentration in near the BCP, Lin Ma Hang to Frontier Closed Area and Ping Yeung to Wo Keng Shan (Tier 1 – Unmitigated) 3-20

Table 3.10:_ Predicted Cumulative Hourly Average TSP Concentration in Sha Tau Kok (Tier 1– Unmitigated) 3-21

Table 3.11:_ Predicted Cumulative Hourly Average TSP Concentration in Po Kak Tsai (Tier 1– Unmitigated) 3-21

Table 3.12:_ Predicted Cumulative Hourly Average TSP Concentration in Fanling (Tier 1 – Unmitigated) 3-21

Table 3.13:_ Predicted Cumulative Hourly Average TSP Concentration in near the BCP, Lin Ma Hang to Frontier Closed Area and Ping Yeung to Wo Keng Shan (Tier 1 – Mitigated) 3-22

Table 3.14:_ Predicted Cumulative Hourly Average TSP Concentration in Sha Tau Kok (Tier 1– Mitigated) 3-22

Table 3.15:_ Predicted Cumulative Hourly Average TSP Concentration in Po Kak Tsai (Tier 1– Mitigated) 3-23

Table 3.16:_ Predicted Cumulative Hourly Average TSP Concentration in Fanling (Tier 1 – Mitigated) 3-23

Table 3.17:_ Predicted Cumulative Hourly Average TSP Concentration at Selected ASRs (Tier 2 – Mitigated) 3-23

Table 3.18:_ Predicted Cumulative Daily Average TSP Concentration in near the BCP, Lin Ma Hang to Frontier Closed Area and Ping Yeung to Wo Keng Shan (Tier 1 – Unmitigated) 3-24

Table 3.19:_ Predicted Cumulative Daily Average TSP Concentration in Sha Tau Kok (Tier 1 – Unmitigated) 3-25

Table 3.20:_ Predicted Cumulative Daily Average TSP Concentration in Po Kak Tsai (Tier 1 – Unmitigated) 3-25

Table 3.21:_ Predicted Cumulative Daily Average TSP Concentration in Fanling (Tier 1 – Unmitigated) 3-25

Table 3.22:_ Predicted Cumulative Daily Average TSP Concentration in near the BCP, Lin Ma Hang to Frontier Closed Area and Ping Yeung to Wo Keng Shan (Tier 1 – Mitigated) 3-25

Table 3.23:_ Predicted Cumulative Daily Average TSP Concentration in Sha Tau Kok (Tier 1 – Mitigated) 3-26

Table 3.24:_ Predicted Cumulative Daily Average TSP Concentration in Po Kak Tsai (Tier 1 – Mitigated) 3-26

Table 3.25:_ Predicted Cumulative Daily Average TSP Concentration in Fanling (Tier 1 – Mitigated) 3-26

Table 3.26:_ Predicted Cumulative Daily Average TSP Concentration at Selected ASRs (Tier 2 – Mitigated) 3-27

Table 3.27:  Predicted Cumulative Annual Average TSP Concentration in near the BCP, Lin Ma Hang to Frontier Closed Area and Ping Yeung to Wo Keng Shan (Unmitigated) 3-27

Table 3.28: _ Predicted Cumulative Annual Average TSP Concentration in Sha Tau Kok (Unmitigated) 3-28

Table 3.29: _ Predicted Cumulative Annual Average TSP Concentration in Po Kak Tsai (Unmitigated) 3-28

Table 3.30:_ Predicted Cumulative Annual Average TSP Concentration in Fanling (Unmitigated) 3-28

Table 3.31:  Predicted Cumulative Annual Average TSP Concentration in near the BCP, Lin Ma Hang to Frontier Closed Area and Ping Yeung to Wo Keng Shan (Mitigated) 3-29

Table 3.32: _ Predicted Cumulative Annual Average TSP Concentration in Sha Tau Kok (Mitigated) 3-29

Table 3.33: _ Predicted Cumulative Annual Average TSP Concentration in Po Kak Tsai (Mitigated) 3-30

Table 3.34:_ Predicted Cumulative Annual Average TSP Concentration in Fanling (Mitigated) 3-30

Table 3.35:_ Predicted Cumulative Hourly and Daily NO2 and Daily RSP concentrations for Stability Class D_ 3-30

Table 3.36:_ Predicted Cumulative Hourly and Daily NO2 and Daily RSP concentrations for Stability Class F_ 3-32

Table 3.37:_ Predicted Cumulative Annual NO2 and RSP concentrations_ 3-34

Table 4.1:__ Noise Standards for Daytime Construction Activities_ 4-2

Table 4.2:__ Ground-borne Noise Criteria (Leq 30min, dB(A)) 4-3

Table 4.3:__ Relevant Noise Standards for Planning Purposes_ 4-4

Table 4.4:__ Acceptable Noise Level for Fixed Plant Noise_ 4-4

Table 4.5:__ Area Sensitivity Rating_ 4-5

Table 4.6:__ Representative Noise Sensitive Receivers_ 4-7

Table 4.7__ Measured Noise Levels_ 4-8

Table 4.8:__ Unmitigated Construction Airborne Noise Impact near BCP, Leq (30mins) dB(A) 4-9

Table 4.9__ Unmitigated Construction Airborne Noise Impact from Lin Ma Hang to Wo Keng Shan, Leq (30mins) dB(A)   4-10

Table 4.10_ Unmitigated Construction Airborne Noise Impact at  Wo Keng Shan, Leq (30mins) dB(A) 4-10

Table 4.11_ Unmitigated Construction Airborne Noise Impact near Sha Tau Kok Road, Leq (30mins) dB(A) 4-11

Table 4.12_ Unmitigated Construction Airborne Noise Impact near Po Kak Tsai, Leq (30mins) dB(A) 4-11

Table 4.13_ Unmitigated Construction Airborne Noise Impact near Fanling, Leq (30mins) dB(A) 4-11

Table 4.14_ Quieter PME Recommended for Adoption during Construction Phase_ 4-12

Table 4.15_ Noise Mitigation Measures for Certain PME during Construction Phase_ 4-13

Table 4.16:_ Mitigated Construction Airborne Noise Impact near BCP, Leq (30mins) dB(A) 4-14

Table 4.17_ Mitigated Construction Airborne Noise Impact from Lin Ma Hang to Wo Keng Shan, Leq (30mins) dB(A) 4-14

Table 4.18_ Mitigated Construction Airborne Noise Impact at Wo Keng Shan, Leq (30mins) dB(A) 4-15

Table 4.19_ Mitigated Construction Airborne Noise Impact near Sha Tau Kok Road, Leq (30mins) dB(A) 4-15

Table 4.20_ Mitigated Construction Airborne Noise Impact near Po Kak Tsai, Leq (30mins) dB(A) 4-16

Table 4.21_ Mitigated Construction Airborne Noise Impact near Fanling, Leq (30mins) dB(A) 4-16

Table 4.22:_ Cumulative Mitigated Construction Airborne Noise Impact near BCP, Leq (30mins) dB(A) 4-17

Table 4.23_ Cumulative Mitigated Construction Airborne Noise Impact at Lin Ma Hang to Frontier Closed Area Boundary, Leq (30mins) dB(A) 4-17

Table 4.24:_ Reference Vibration Level based on Measurements_ 4-19

Table 4.25:_ Source Vibration Velocity of Octave Band Frequency for Hydraulic Breaker 4-19

Table 4.26: _ Wave Propagation Properties of Soil 4-19

Table 4.27:_ Adjustment Factor for Building Coupling Loss (BCF) 4-20

Table 4.28:_ Adjustment Factor for Building Structure Attenuation (BSA) 4-20

Table 4.29:_ Building Structure Attenuation (BSA) 4-20

Table 4.30:_ Building Structure Resonance (BSR) 4-21

Table 4.31:_ Room Correction Factors_ 4-21

Table 4.32__ Unmitigated Construction Ground-borne Noise_ 4-22

Table 4.33__ Comparison between With and Without Project in Year 2018 from Lin Ma Hang to North Tunnel (Existing Receivers)       4-23

Table 4.34__ Comparison between With and Without Project in Year 2018 from Lin Ma Hang to North Tunnel (Planned Receivers)      4-24

Table 4.35__ Comparison between With and Without Project in Year 2018 near Sha Tau Kok Road Section (Existing Receivers)          4-25

Table 4.36__ Comparison between With and Without Project in Year 2018 near Fanling Highway (Existing Receivers)             4-25

Table 4.37__ Unmitigated Road Traffic Noise Impact in Year 2033 near Lin Ma Hang to Wo Keng Shan (Existing Uses)          4-26

Table 4.38__ Unmitigated Road Traffic Noise Impact in Year 2033 near Lin Ma Hang to Wo Keng Shan (Planned Uses)         4-27

Table 4.39__ Unmitigated Road Traffic Noise Impact in Year 2033 near Sha Tau Kok Road Section (Existing Uses) 4-27

Table 4.40__ Unmitigated Road Traffic Noise Impact in Year 2033 near Fanling Highway (Existing Uses)_____ 4-27

Table 4.41__ Summary of Exceedance of Road Traffic Noise Criteria_________________________________ 4-28

Table 4.42__ Proposed Location of Noise Barrier for Existing Uses___________________________________ 4-29

Table 4.43:_ Mitigated Road Traffic Noise Levels of Existing Uses___________________________________ 4-30

Table 4.44__ Noise Criteria of Fixed Plant Noise_________________________________________________ 4-31

Table 4.45:_ Summary of Fixed Plant Noise Sources_____________________________________________ 4-33

Table 4.46:_ Maximum SWLs of the Fixed Plant_________________________________________________ 4-33

Table 5.1__ Water Quality Objective for the Deep Bay WCZ_ 5-1

Table 5.2__ Marine Water Quality in Deep Bay Water Control Zone in 2008_ 5-5

Table 5.3:__ Summary of River Water Quality Monitoring Data at Several Sections of Shenzhen River (2006-2007) 5-6

Table 5.4:__ Summary of River Water Quality Monitoring Data at River Ganges and River Indus (2008) 5-7

Table 5.5:__ Summary of Results of Water Quality Sampling at River Indus, River Ganges and Kong Yiu Channel 5-9

Table 6.1:__ Population of the proposed LT/HYW BCP on Hong Kong Side_ 6-2

Table 6.2:__ Population of the Proposed Resite of Chuk Yuen Village_ 6-2

Table 6.3:__ Staffing of proposed Administration Building_ 6-3

Table 6.4:__ Design Unit Load Factors_ 6-4

Table 6.5:__ Peaking Factor for Sewers_ 6-5

Table 6.6:__ Population and Estimated Sewage Flow from Existing Chuk Yuen Village_ 6-5

Table 6.7:__ Pollutant Loading of  Existing Chuk Yuen Villages_ 6-6

Table 6.8:__ Performance of Septic Tank 6-6

Table 6.9:__ Pollutant Loading Performance of Septic Tank 6-6

Table 6.10:_ Estimated Sewage Flow from Proposed Chuk Yuen Village Resite_ 6-7

Table 6.11:_ Estimated Sewage Flow from the proposed LT/HYW BCP on Hong Kong Side_ 6-7

Table 6.12:_ Estimated Sewage Flow from the proposed LT/HYW BCP on Hong Kong Side (with 15% of passengers using toilet) 6-8

Table 6.13:_ Pollutant Loads arising from the Raw Sewage of the Proposed Development 6-8

Table 6.14:_ Comparison of MBR Treatment Performance with Discharge Standards_ 6-10

Table 6.15:_ Pollutant Loadings in Treated Effluent (with 10% of passengers using toilets) 6-11

Table 6.16:_ Pollutant Loadings in Treated Effluent (with 15% of passengers using toilet) 6-11

Table 6.17:_ Comparison of Pollutant Loadings_ 6-11

Table 6.18:_ Comparison of Sewage Flow and Pollutant Loadings to be Discharged after Effluent Reuse (with 10% of Passengers Using Toilets) 6-12

Table 6.19:_ Standards for Reuse of MBR Treated Effluent 6-12