Agreement No. CE31/2014 (CE)

Engineering Study for Police

Facilities in Kong Nga Po –

Feasibility Study

Environmental Impact Assessment Report

July 2016

Civil Engineering and Development Department

Contents

Chapter    Title                                                                                                                           Page

1                      Introduction 1-1

1.1                  Background 1-1

1.2                  Designated Projects under the EIA Ordinance 1-1

1.3                  Purpose of the EIA Study 1-1

1.4                  Objectives of the EIA Study 1-2

1.5                  Scope of the EIA Study 1-3

1.6                  Structure of the EIA Report 1-4

2                      Project Description 2-1

2.1                  Introduction 2-1

2.2                  Project Location and History 2-1

2.2.1               Project Location 2-1

2.2.2               Site History 2-1

2.3                  Project Scope 2-2

2.4                  Need of the Project 2-2

2.4.1               Police Facilities 2-2

2.4.2               Access Road to be Constructed or Improved 2-3

2.4.3               Benefits of the Project 2-3

2.5                  Consideration of “Without Project” Alternative 2-4

2.6                  Consideration of Alternative Siting and Layout 2-4

2.6.1               Development Siting 2-4

2.6.2               Development Layout Options 2-5

2.6.3               Access Options 2-8

2.7                  Consideration of Alternative Construction Methods 2-10

2.7.1               Site Formation and Road Works 2-10

2.7.2               Retaining Walls and Slope Works 2-11

2.7.3               Building Works 2-11

2.8                  Programme and Sequence of Works 2-12

2.9                  Concurrent Projects 2-12

3                      Air Quality Impact 3-1

3.1                  Introduction 3-1

3.2                  Environmental Legislation, Standards and Guidelines 3-1

3.3                  Project Site 3-3

3.4                  Study Area and Air Sensitive Receivers 3-10

3.5                  Identification of Pollution Sources and Key Pollutants 3-18

3.6                  Air Quality Modelling Methodology 3-22

3.7                  Odour Impact Assessment Methodology 3-39

3.8                  Evaluation and Assessment of Air Quality Impacts 3-41

3.9                  Mitigation of Adverse Environmental Impact 3-47

3.10                Evaluation of Residual Impact 3-49

3.11                Environmental Monitoring and Audit 3-50

3.11                Conclusion 3-51

4                     Noise Impact 4-1

4.1                  Introduction 4-1

4.2                  Relevant Legislation and Guidelines 4-1

4.3                  Description of the Noise Environment 4-5

4.4                  Construction Noise Impact Assessment 4-6

4.5                  Road Traffic Noise Impact Assessment 4-15

4.6                  Fixed Plant Noise Impact Assessment 4-19

4.7                  Helicopter Noise Impact Assessment 4-28

4.8                  Environmental Monitoring and Audit 4-38

4.9                  Conclusion 4-39

5                     Water Quality Impact 5-1

5.1                  Introduction_ 5-1

5.2                  Environmental Legislation, Standards and Guidelines 5-1

5.3                  Assessment Area, Water Sensitive Receivers and Background Conditions 5-4

5.4                  Assessment Methodology 5-7

5.5                  Identification and Evaluation of Water Quality Impacts 5-7

5.6                  Mitigation of Adverse Water Quality Impacts 5-11

5.7                  Evaluation of Cumulative and Residual Impact 5-15

5.8                  Environmental Monitoring and Audit 5-15

5.9                  Conclusion 5-15

6                      Sewerage and Sewage Treatment Implications 6-1

6.1                  Introduction 6-1

6.2                  Environmental Standards and Guidelines 6-1

6.3                  Assessment Methodology 6-1

6.4                  Existing Sewerage Conditions 6-1

6.5                  Estimation of Project-related Sewage Flows 6-2

6.6                  Evaluation of Sewerage Impacts 6-4

6.7                  Mitigation Measures to Minimise Adverse Sewerage Impacts 6-5

6.8                  Environmental Monitoring and Audit 6-6

6.9                  Conclusion 6-6

7                      Waste Management Implications 7-1

7.1                  Introduction 7-1

7.2                  Environmental Legislation, Standards and Guidelines 7-1

7.3                  Assessment Methodology 7-2

7.4                  Identification, Prediction and Evaluation of Environmental Impact 7-3

7.5                  Mitigation of Adverse Environmental Impact 7-10

7.6                  Evaluation of Residual Impact 7-12

7.7                  Environmental Monitoring and Audit Requirements 7-12

7.8                  Conclusion 7-13

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                  Identification of Potential Environmental Impacts 8-2

8.5                  Prediction and Evaluation of Environmental Impacts 8-3

8.6                  Recommendation of Mitigation Measures 8-4

8.7                  Evaluation of Residual Environmental Impacts 8-5

8.8                  Environmental Monitoring and Audit Requirements 8-6

8.9                  Conclusion 8-6

9                      Ecological Impact (Terrestrial and Aquatic) 9-1

9.1                  Introduction 9-1

9.2                  Environmental Legislation, Standards and Guidelines 9-1

9.3                  Study Area and Methodology 9-2

9.4                  Baseline Condition and Ecological Sensitive Receivers 9-6

9.5                  Evaluation of Ecological Importance of Habitats and Species 9-31

9.6                  Identification and Evaluation of Ecological Impacts 9-49

9.7                  Precautionary and Mitigation Measures 9-57

9.8                  Evaluation of Residual Ecological Impact 9-59

9.9                  Ecological Monitoring and Audit Requirements 9-59

9.10                Summary 9-59

9.11                References 9-60

10                   Landscape and Visual Impacts_ 10-1

10.1                Introduction 10-1

10.2                Landscape and Visual Legislation, Standard and Guidelines 10-1

10.3                Assessment Area 10-2

10.4                Methodology for Assessment of Landscape and Visual Impacts 10-2

10.5                Review of Relevant Guidelines on Landscape Strategies and Framework and Land Use Zoning 10-8

10.6                Existing Trees within the Project Boundary 10-9

10.7                Landscape Baseline Study 10-12

10.8                Visual Baseline Study 10-27

10.9                Option Assessment 10-30

10.10              Potential Sources of Landscape and Visual Impact 10-32

10.11              Landscape Impact Assessment 10-33

10.12              Visual Impact Assessment_ 10-39

10.13              Visual Enhancement and Landscape Mitigation Measures 10-45

10.14              Residual Landscape Impact 10-55

10.15              Residual Visual Impact 10-64

10.16              Cumulative Impact 10-71

10.17              Summary and Conclusion 10-71

11                   Impact of Hazard to Life 11-1

11.1                Introduction 11-1

11.2                Population Adopted For the Assessment 11-12

11.3                Modelling Approach and Calibration 11-19

11.4                Hazard Identification 11-20

11.5                Frequency Assessment 11-31

11.6                Consequence Assessment 11-40

11.7                Risk Assessment 11-51

11.8                Environmental Monitoring & Auditing 11-56

11.9                Conclusion 11-56

11.10              Reference 11-56

12                   Conclusion 12-1

12.1                General 12-1

12.2                Summary of Key Environmental Outcomes 12-1

12.3                Air Quality Impact 12-3

12.4                Noise Impact 12-3

12.5                Water Quality Impact 12-4

12.6                Sewerage and Sewage Treatment Implications 12-5

12.7                Waste Management Implications 12-5

12.8                Land Contamination 12-6

12.9                Ecological Impact 12-7

12.10              Landscape and Visual Impacts 12-7

12.11              Impact of Hazard to Life 12-8

12.12              Summary of Environmental Impacts 12-9

13                   Environmental Monitoring and Audit Requirements 13-1

13.1                General 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 13-1

13.6                Waste Management Implications 13-2

13.7                Land Contamination 13-2

13.8                Ecological Impact 13-2

13.9                Landscape and Visual Impacts 13-3

13.10              Impact of Hazard to Life__ 13-3

14                   Project Implementation Schedule 14-1

14.1                General 14-1

List of Tables

Table 2.1:__ Comparison between the Refinement Options and Preliminary Layout 2-6

Table 2.2:__ Summary of Preliminary Development Parameters for Preferred Option 2-8

Table 2.3:__ Summary of Concurrent Project Considered for Cumulative Impacts 2-12

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

Table 3.2:__ Air Quality Monitoring Data at Tai Po Station (Year 2011 – 2015) 3-9

Table 3.3:__ Background concentrations for 1-hour average NO2 and 10-minute average SO2 (Year 2011 – 2015)

at Tai Po Station 3-9

Table 3.4:__ Background concentrations for 24-hour average RSP, FSP and SO2 (Year 2011 – 2015) at Tai Po Station 3-9

Table 3.5:__ Representative ASRs Identified for Air Quality Impact Assessment 3-10

Table 3.6:__ Summary of concurrent projects during construction and operation phase 3-22

Table 3.7:__ Key Dust Emission Factors Adopted in the Assessment 3-25

Table 3.8:__ Vehicle Classification in the EMFAC-HK Model 3-29

Table 3.9:__ Operational Emissions of the OWTF2 CHP 3-35

Table 3.10:_ Operational Emissions of the OWTF2 odour treatment units 3-35

Table 3.11:_ Operational Emission of the OWTF2 flare 3-36

Table 3.12:_ Summary of Years 2015 and 2020 Hong Kong Emission Inventory for the PATH Model 3-37

Table 3.13:_ Locations of air sample collection for odour testing 3-40

Table 3.14:_ Odour patrol and sampling dates and locations 3-41

Table 3.15: Summary of Predicted Cumulative Maximum Hourly Average TSP Concentration and 10th Highest Daily

Average RSP and FSP Concentrations (Tier 1 Unmitigated and Mitigated 3-42

Table 3.16:_ Summary of Predicted Cumulative Annual Average RSP and FSP Concentrations (Unmitigated and Mitigated) 3-42

Table 3.17:_ Summary of Predicted Cumulative Modelling Results during Operation Phase 3-43

Table 3.18:_ Summary of historical odour complaints related to the existing pig farms and firing ranges 3-44

Table 3.19:_ Summary of odour testing results 3-45

Table 4.1:__ Noise Standards for Daytime Construction Activities 4-1

Table 4.2:__ Relevant Road Traffic Noise Standards for Planning Purposes 4-2

Table 4.3:__ Area Sensitivity Rating 4-3

Table 4.4:__ Acceptable Noise Level for Fixed Noise Source 4-4

Table 4.5: __ Measured Background Noise Levels 4-6

Table 4.6:__ Representative Construction Noise Sensitive Receivers Identified for the Assessment 4-6

Table 4.7:__ Summary of Concurrent Projects 4-7

Table 4.8:__ Unmitigated Construction Airborne Noise Impact 4-9

Table 4.9:__ Quieter PME Recommended for Adoption during the Construction Phase of the Project 4-11

Table 4.10:_ Noise Mitigation Measures for Certain PME during the Construction Phase of the Project 4-12

Table 4.11:_ Mitigated Construction Airborne Noise Impact 4-13

Table 4.12:_ Mitigated Cumulative Construction Airborne Noise Impact 4-14

Table 4.13:_ Representative Road Traffic Noise Sensitive Receivers Identified for the Assessment 4-15

Table 4.14:_ Unmitigated Road Traffic Noise Impact in Year 2038 4-17

Table 4.15:_ Predicted Noise Impacts quantified by Number of Dwellings (Unmitigated) 4-18

Table 4.16:_ Representative Fixed Noise Sensitive Receivers Identified for the Assessment 4-20

Table 4.17:_ Noise Criteria of Planned Fixed Noise Sources 4-20

Table 4.18:_ Measurement Results for Vehicle Sirens / Simulation Shooting 4-23

Table 4.19:_ Measurement Results for Normal Driving 4-23

Table 4.20:_ Measurement Results on Tyre Noise, Skidding Noise and Braking Noise 4-23

Table 4.21:_ Summary of Fixed Noise Sources 4-25

Table 4.22:_ Maximum Permissible SWLs of the Fixed Plant 4-25

Table 4.23:_ Number of Shots in 30-minute Period during a Training Day 4-27

Table 4.24:_ Predicted Fixed Noise Impact from Planned Noise Sources 4-27

Table 4.25:_ Cumulative Fixed Noise Impact from Existing and Planned Noise Sources 4-27

Table 4.26:_ HKPF Day-time Training 4-28

Table 4.27:_ Frequency of using Lo Wu Range Helicopter Landing Site 4-29

Table 4.28:_ Representative Helicopter Noise Sensitive Receivers Identified for the Assessment 4-29

Table 4.29:_ Helicopter Noise Data (with Lateral Movements) 4-33

Table 4.30:_ Helicopter Noise Data (without Lateral Movements) 4-33

Table 4.31:_ Summary of Different Operation Modes 4-33

Table 4.32:_ Predicted Helicopter Noise Impact at All Representative NSRs 4-35

Table 5.1:__ Water Quality Objectives for Deep Bay WCZ 5-1

Table 5.2:__ Annual Summary of Water Quality Data for EPD Monitoring Stations IN1, IN2 and GR1 (2013) 5-6

Table 5.3:__ Water Quality Data for Nearby Water Sensitive Receivers (from 15 April 2013) 5-7

Table 6.1:__ Peaking Factors Adopted to Estimate Project-related Sewage Flows 6-3

Table 6.2:__ Sewage Flows for the Project 6-3

Table 6.3:__ Summary of Sewage Flows generated by the Project to SWHSTW 6-5

Table 7.1:__ Summary of Waste Arising during Construction Phase 7-7

Table 7.2:__ Estimation of General Refuse Generation during Operation Phase 7-8

Table 8.1:__ Review of Aerial Photographs 8-2

Table 8.2:__ Summary of Potential Land Contamination Impact 8-3

Table 9.1:__ Ecological Field Survey Schedule 9-4

Table 9.2:__ Aquatic habitats of the sampling points 9-6

Table 9.3:__ Habitats Present in the Study Area (excluding the Project Site) 9-8

Table 9.4:__ Habitats Present in the Project Site 9-8

Table 9.5:__ Avifauna species of conservation interest recorded within Study Area 9-20

Table 9.6:__ Nest numbers, species type and plant species used as nesting substrate at Man Kam To Road Egretry

(MKT Egretry) and its satellite (MKT Satellite Egretry) recorded between April and July 2015 9-23

Table 9.7:__ Mammal species of conservation interest recorded within the Study Area 9-25

Table 9.8:__ Herpetofauna species of conservation interest recorded within the Study Area 9-27

Table 9.9:__ Butterfly species of conservation interest recorded within the Study Area 9-29

Table 9.10:_ Ecological Evaluation of Plantation 9-32

Table 9.11:_ Ecological Evaluation of Orchard 9-33

Table 9.12: _ Ecological Evaluation of Shrubland 9-33

Table 9.13:_ Ecological Evaluation of Secondary Woodland 9-34

Table 9.14:_ Ecological Evaluation of Grassland/Shrubland 9-34

Table 9.15:_ Ecological Evaluation of Grassland 9-35

Table 9.16:_ Ecological Evaluation of Seasonally Wet Grassland 9-36

Table 9.17:_ Ecological Evaluation of Agricultural Land 9-36

Table 9.18:_ Ecological Evaluation of Watercourse 9-37

Table 9.19:_ Ecological Evaluation of Channelised Watercourse 9-37

Table 9.20:_ Ecological Evaluation of Pond 9-38

Table 9.21:_ Ecological Evaluation of Developed Area 9-38

Table 9.22:_ Ecological Evaluation of Flora Species of Conservation Interest 9-39

Table 9.23:_ Ecological Evaluation of Fauna Species of Conservation Interest recorded during Field Survey within

the Project Site 9-41

Table 9.24:_ Ecological Evaluation of Fauna Species of Conservation Interest recorded during Field Survey within

the Study Area (excluding the Project Site) 9-42

Table 9.25:_ Ecological Evaluation of Fauna Species of Conservation Interest recorded within

the Study Area from Literature Review 9-44

Table 9.26:_ Summary of Habitat Loss within the Project Site in the worst case scenario 9-49

Table 9.27:_ Evaluation of Habitat Loss 9-50

Table 9.28:_ Direct Impact on Flora Species of Conservation Interest 9-51

Table 9.29:_ Evaluation of Disturbance Impact on Fauna Species of Conservation Interest 9-53

Table 9.30:_ Evaluation of Disturbance Impact on Man Kam To Egretry 9-55

Table 9.31:_ Evaluation of Reduction of Ecological Carrying Capacity 9-55

Table 9.32:_ Evaluation of Indirect Ecological Impacts of Potential Changes in Water Quality as a result of Surface Runoff 9-56

Table 9.33:_ Evaluation of Disturbance Impact during Operation Phase 9-56

Table 10.1:   Impact significance – relationship between sensitivity and magnitude of change 10-4

Table 10.2:   Impact significance – relationship between sensitivity and magnitude of change 10-7

Table 10.3:   Summary of existing trees within the Project Site (in order of decreasing abundance) 10-9

Table 10.4:  Summary of existing trees within and adjacent to the Project boundary along Kong Nga Po Road

(in order of decreasing abundance) 10-10

Table 10.5:_ Sensitivity of Identified Landscape Resources 10-20

Table 10.6:_ Sensitivity of Identified Landscape Character Areas 10-26

Table 10.7:_ Sensitivity of Visually Sensitive Receivers 10-29

Table 10.8:_ Potential Landscape Impacts of Individual Refinement Layout Options 10-31

Table 10.9:_ Potential Landscape Impacts of Access Options 10-32

Table 10.10: Magnitude of Change in Views for VSRs_ 10-44

Table 10.11: Proposed Visual Enhancement and Landscape Mitigation Measures – Construction Phase 10-46

Table 10.12: Proposed Visual Enhancement and Landscape Mitigation Measures – Operation Phase 10-49

Table 10.13: Indicative Mitigation Planting 10-53

Table 10.14: Significance of Landscape Impacts in Construction and Operation Phases 10-59

Table 10.15: Significance of Visual Impacts in Construction and Operation Phases 10-70

Table 11 1:_ Meteorological Data (1996) 11-10

Table 11 2:_ Meteorological Data (2011-2014 average data) 11-11

Table 11 3:_ Population within the proposed site 11-13

Table 11 4:_ Latest Schedule of OWTF2 11-14

Table 11 5:_ The change of major population group in consultation zone 11-15

Table 11 6:_ Definition of Time periods 11-16

Table 11 7:_ Traffic Variation at Different Time Periods at Major Traffic Stations (ATC 2014) 11-17

Table 11 8:_ Physical Properties of petrol and diesel 11-26

Table 11 9:_ Properties of kerosene (Jet A1) 11-27

Table 11 10: Event frequencies with Implementation of Previous Identified Risk Mitigation Measures 11-32

Table 11 11: Accident rate summary from IATA report 2014 11-33

Table 11 12: Percentage of accidents related to Takeoff/climb and approach/landing phase of a flight 11-33

Table 11 13: Air Traffic Movements at HKIA 11-34

Table 11 14: Helicopter crash frequencies for different equipments in OWTF2 11-35

Table 11 15: Serious and Fatal Vehicle involvements for Medium /Heavy Goods Vehicles 11-36

Table 11 16: Spontaneous failure frequencies as adopted from OWTF2 EIA report 11-36

Table 11 17: Assumptions used in FTA 11-37

Table 11 18: Result of Fault Tree Analysis 11-38

Table 11 19: Ignition and Explosion Probabilities for Biogas Releases 11-38

Table 11 20: Ignition Probability of petrol 11-39

Table 11 21: Release scenarios to be included in this HA 11-41

Table 11 22: Chlorine toxicity relationship 11-42

Table 11 23: Cloud Height Adopted for Release Events 11-42

Table 11 24: End Point Criteria for explosion risk 11-44

Table 11 25: Consequence distances adopted from OWTF2 EIA report 11-44

Table 11 26: Maximum pool radius for an un-bunded pool fire in DG store 11-46

Table 11 27: Consequence distances for the hazardous scenarios of kerosene road tanker 11-47

Table 11 28: Consequence distances for the hazardous scenarios of petrol/diesel filling station 11-49

Table 11 29: Summary of uncertainty analysis 11-54

Table 11 30: Summary of uncertainty analysis for OWTF2 11-55

Table 11 31: Summary of uncertainty analysis for proposed police facility 11-55

Table 12.1:   Summary of Environmental Impacts of Police Facilities in Kong Nga Po 12-10

Table 14.1:   Implementation Schedule of Recommended Mitigation Measures 14-1

List of Figures

Figure 2.1              Project Layout

Figure 2.1a            Indicative Police Facilities Layout Arrangement

Figure 2.2              Existing Police Facilities to be Relocated

Figure 2.3              Preliminary Layout

Figure 2.4              Refinement Layout – Option 1

Figure 2.5              Refinement Layout – Option 2

Figure 2.6              Refinement Layout – Option 3

Figure 2.7              Access Options

Figure 2.8              Location of Concurrent Projects

Figure 3.1              Location of Air Sensitive Receivers Outside Project Site

Figure 3.2              Location of Air Sensitive Receivers Within Project Site

Figure 3.3              Relevant ASRs Located at Relevant PATH Grids

Figure 3.4              Location of Potential Construction Dust Emission Area Sources (Tier 1)

Figure 3.5              Location of Potential Construction Dust Emission Line Sources (Tier 1)

Figure 3.6              Location of Potential Dust Emission Sources from Concurrent Projects

Figure 3.7              (Not used)

Figure 3.8              (Not used)

Figure 3.9              (Not used)

Figure 3.10           Road Links within 500m Assessment Area

Figure 3.11           Location of ISCST3 Emission Sources

Figure 3.12           Location of Air Sampling Points

Figure 3.13           (Not used)

Figure 3.14           Cumulative Result – Contour of Tier 1 Hourly TSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Unmitigated)

Figure 3.15           Cumulative Result – Contour of Tier 1 10^th Maximum Daily RSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Unmitigated)

Figure 3.16           Cumulative Result – Contour of Tier 1 10^th Maximum Daily FSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Unmitigated)

Figure 3.17           Cumulative Result – Contour of Tier 1 Hourly TSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Mitigated)

Figure 3.18           Cumulative Result – Contour of Tier 1 10^th Maximum Daily RSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Mitigated)

Figure 3.19           (Not used)

Figure 3.20           (Not used)

Figure 3.21           (Not used)

Figure 3.22           (Not used)

Figure 3.23           (Not used)

Figure 3.24           Cumulative Result – Contour of Annual RSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Unmitigated)

Figure 3.25           Cumulative Result – Contour of Annual FSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Unmitigated)

Figure 3.26           Cumulative Result – Contour of Annual RSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Mitigated)

Figure 3.27           Cumulative Result – Contour of Annual FSP Concentration (µg/m³) at 1.5m above ground during Construction Phase (Mitigated)

Figure 3.28           (Not used)

Figure 3.29           Cumulative Result– Contour of 19^th Maximum Hourly NO₂ Concentration (µg/m³) at 1.5m above ground during Operational Phase (With CHP of OWTF2)

Figure 3.30           Cumulative Result– Contour of 19^th Maximum Hourly NO₂ Concentration (µg/m³) at 1.5m above ground during Operational Phase (With Flare of OWTF2)

Figure 3.31           Cumulative Result– Contour of Annual NO₂ Concentration (µg/m³) at 1.5m above ground during Operational Phase (With CHP of OWTF2)

Figure 3.32           Cumulative Result– Contour of Annual NO₂ Concentration (µg/m³) at 1.5m above ground during Operational Phase (With Flare of OWTF2)

Figure 3.33           Cumulative Result– Contour of 10^th Maximum Daily RSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With CHP and Odour Treatment Unit of OWTF2)

Figure 3.34           Cumulative Result– Contour of 10^th Maximum Daily RSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With Flare and Odour Treatment Unit of OWTF2)

Figure 3.35           Cumulative Result– Contour of Annual RSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With CHP and Odour Treatment Unit of OWTF2)

Figure 3.36           Cumulative Result– Contour of Annual RSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With Flare and Odour Treatment Unit of OWTF2)

Figure 3.37           Cumulative Result– Contour of 10^th Maximum Daily FSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With CHP and Odour Treatment Unit of OWTF2)

Figure 3.38           Cumulative Result– Contour of 10^th Maximum Daily FSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With Flare and Odour Treatment Unit of OWTF2)

Figure 3.39           Cumulative Result– Contour of Annual FSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With CHP and Odour Treatment Unit of OWTF2)

Figure 3.40           Cumulative Result– Contour of Annual FSP Concentration (µg/m³) at 1.5m above ground during Operational Phase (With Flare and Odour Treatment Unit of OWTF2) 

Figure 3.41           Odour Testing Results and Wind Directions on Two Typical Hot Days

Figure 3.42           Topography of Existing Condition and the Project Development

Figure 3.43           Cross-Section of Topography of Existing Condition and the Project Development

Figure 4.1             Noise Impact Assessment Area and Locations of Representative Noise Sensitive Receivers (Fixed Noise)

Figure 4.2             Noise Impact Assessment Area and Locations of Representative Noise Sensitive Receivers (Construction Noise)

Figure 4.3             Photos of Representative Noise Sensitive Receivers (NSRs)

Figure 4.4             Schematic Configuration of Movable Noise Barrier for PME

Figure 4.5             Schematic Configuration of Full Noise Enclosure for PME

Figure 4.6             Noise Impact Assessment Area and Locations of Representative Noise Sensitive Receivers (Road Traffic Noise)

Figure 4.7             Locations of Proposed Fixed Plant Noise Sources

Figure 4.8             Noise Impact Assessment Area and Locations of Representative Noise Sensitive Receivers (Helicopter Noise)

Figure 4.9             Noise Contours for Helicopter Noise Impacts during Day-time Period (Day-time – Operation Mode 1 – 8)

Figure 5.1            Water Quality Impact Assessment Area and Water Sensitive Receivers

Figure 5.2             Indicative Drainage Routing during Construction Phase

Figure 6.1             Existing Sewerage System

Figure 6.2             Proposed Sewerage System

Figure 8.1             Location of Site Photographs

Figure 9.1             Project Site, Assessment Area, Survey Transect and Sampling Location

Figure 9.2a-d        Habitat Map and Species of Conservation Significance

Figure 9.3             Indicative Extent of Egretry

Figure 10-01         Aerial Photograph

Figure 10-02         Future Planning Context

Figure 10-03         Landscape Resources Plan

Figure 10-04         Landscape Resource Photographs

Figure 10-05         Landscape Resource Photographs

Figure 10-06         Landscape Character Area Plan

Figure 10-07         Landscape Character Area Photographs

Figure 10-08         Landscape Character Area Photographs

Figure 10-09         Landscape Character Area Photographs 

Figure 10-10         Landscape Character Area Photographs

Figure 10-11         Visual Envelope and Visually Sensitive Receivers

Figure 10-12         Visual Envelope and Visually Sensitive Receivers

Figure 10-13         Existing VSR Views

Figure 10-14         Existing VSR Views

Figure 10-15         Existing VSR Views

Figure 10-16         Existing VSR Views

Figure 10-17         Existing VSR Views

Figure 10-18         Existing VSR Views

Figure 10-19         Preliminary Landscape Master Plan 

Figure 10-20         Preliminary Landscape Master Plan

Figure 10-21         Landscape and Visual Mitigation Measures – Plan

Figure 10-22         Landscape and Visual Mitigation Measures – Plan

Figure 10-23         Landscape and Visual Mitigation Measures – Plan

Figure 10-24         Landscape and Visual Mitigation Measures – Oblique Aerial View

Figure 10-25         Landscape and Visual Mitigation Measures – Sections

Figure 10-26         Landscape and Visual Mitigation Measures – Sections

Figure 10-27         Landscape and Visual Mitigation Measures – Sections

Figure 10-28         Landscape and Visual Mitigation Measures – Sections

Figure 10-29         Landscape and Visual Mitigation Measures – Sections

Figure 10-30         Landscape and Visual Mitigation Measures – Sections

Figure 10-31         Landscape and Visual Mitigation Measures – Sections

Figure 10-32         Landscape and Visual Mitigation Measures – Sections

Figure 10-33         Landscape and Visual Mitigation Measures – Sections

Figure 10-34         Landscape and Visual Mitigation Measures – Sections

Figure 10-35         Residual Impacts on Landscape Resources during Construction and Operation

Figure 10-36         Residual Impacts on Landscape Character Areas during Construction and Operation

Figure 10-37         Residual Visual Impacts during Construction and Operation

Figure 10-38         Vantage Points for Photomontages

Figure 10-39         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-40         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-41         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-42         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-43         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-44         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-45         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-46         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-47         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-48         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-49         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-50         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-51         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-52         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-53         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-54         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-55         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-56         Landscape and Visual Mitigation Measures – Photomontage

Figure 10-57        Proposed Viaduct Section along Improved Kong Nga Po Road

Figure 11.1           Detailed location arrangement inside the proposed site

Figure 11.2           QRA Flow Chart  

Figure 11.3           Societal Risk Guidelines   

Figure 11.4           Road Markings within SSWTW

Figure 11.5           Barrier in the north-western corner of SSWTW

Figure 11.6           Wind rose adopted in this study (2011-2014 average)

Figure 11.7           Padding material to prevent bouncing back of ricochet

Figure 11.8           Fuel road tanker transport route to be assessed

Figure 11.9           Aircraft Crash Coordinate System

Figure 11.10         Distance between proposed helipad and OWTF2 storage        

Figure 11.11         Relative Position of non-fuel gas facilities within the site

List of Appendices

Appendix 2.1        Tentative Construction Programme

Appendix 3.1        Calculation of Dust Suppression Efficiency

Appendix 3.2        Estimation of Particle Size Distribution

Appendix 3.3        Details of Dust Emission Sources for 1-hour TSP, Daily RSP and Daily FSP (Tier 1)

Appendix 3.4        Estimation of Active Area Percentages for Key Construction Activities (Annual)

Appendix 3.5        (Not used)

Appendix 3.6        Data Input file for Hourly TSP, Daily RSP and Daily FSP (Tier 1)

Appendix 3.7        (Not used)

Appendix 3.8        Details of Dust Emission Sources for Annual RSP and Annual FSP

Appendix 3.9        Data Input file for Annual RSP and Annual FSP

Appendix 3.10      Letter from Transport Department regarding Traffic Forecast Data

Appendix 3.11      24-Hour Traffic Pattern

Appendix 3.12      Vehicle Age Distribution in Base Year 2010

Appendix 3.13      Road Profile of Road Links within 500m Study Area

Appendix 3.14      24-hour VKT values for All Vehicle Classes in each of the Model years 2023, 2028, 2033 and 2038

Appendix 3.15      Trip Estimation

Appendix 3.16      24-hour Variations of Annual Averages of Temperature and Relative Humidity

Appendix 3.17      24-hour Speed Fractions

Appendix 3.18      Calculation of Emission Factors for Each Model year

Appendix 3.19      Composition Emission Factor in Year 2023

Appendix 3.20      Letter from EPD regarding Chimney

Appendix 3.21      Model Parameters for ISCST3

Appendix 3.22      (Not used)

Appendix 3.23      Detail Odour Patrol and Testing Report

Appendix 3.24      Tier 1 Hourly TSP, Daily RSP and Daily FSP Screening Results for Unmitigated and Mitigated Scenarios

Appendix 3.25      (Not used)

Appendix 3.26      Annual RSP and FSP Results for Unmitigated and Mitigated Scenarios

Appendix 3.27      (Not Used)

Appendix 3.28      Cumulative Results for NO₂, RSP and FSP during Operational Phase (for Year 2023 Vehicular and Chimney Emission and Year 2020 Background Concentration)

Appendix 4.1        Unmitigated Construction Plant Inventory and Noise Impact Assessment

Appendix 4.2        Mitigated Construction Plant Inventory and Noise Impact Assessment

Appendix 4.3        Extent of Proposed Project Road

Appendix 4.4        Letter from Transport Department regarding Traffic Forecast Data

Appendix 4.5        Traffic Forecast Data and Key Plan for Road Traffic Noise Impact Assessment

Appendix 4.6        Predicted Road Traffic Noise Levels for Unmitigated Scenario (Year 2038)

Appendix 4.7        Correspondence between Mott MacDonald and HKPF

Appendix 4.8a      Gunshot Noise Measurement Results

Appendix 4.8b      Fixed Noise Sources Impact Assessment

Appendix 4.9        Correspondence between Mott MacDonald and GFS

Appendix 4.10      Helicopter Noise Impact Assessment

Appendix 4.11      Literature Review of Overseas / International Noise Criteria for Emergency Helicopter Operations during Evening and Night-time Periods

Appendix 6.1        Proposed Sewer Pipeline Design

Appendix 8.1        Representative Historical Aerial Photographs

Appendix 8.2        Responses from Government Departments on Relevant Information

Appendix 8.3        Site Photographs

Appendix 9.1        Plates

Appendix 9.2        List of Flora recorded within the Study Area

Appendix 9.3        List of Fauna recorded within the Study Area

Appendix 10.1      Broad-Brush Tree Survey

Appendix 11.1      Some Information Extracted from the Reassessment Study

Appendix 11.2      Kerosene Transport Route

Appendix 11.3      Photos of Kerosene Truck used by GFS

Appendix 11.4      Fault Tree Analysis

Appendix 11.5      Event Tree Analysis in OWTF2

Appendix 11.6      Population Considered in this Assessment

Appendix 11.7      Individual Risk Results

Appendix 11.8      Societal Risk Results

Appendix 11.9      Cumulative Risk Assessment Result

Abbreviations

ADWF	Average Dry Weather Flows
AFCD	Agriculture, Fisheries and Conservation Department
ALARP	As Low As Reasonably Practicable
ANLs	Acceptable Noise Levels
APCO	Air Pollution Control Ordinance
APR	Approach
AQOs	Air Quality Objectives
AQUALINE
ArchSD	Architectural Services Department
ASR	Air Sensitive Receiver (Air quality) Area Sensitive Rating (Noise)
ATC	Annual Traffic Census
BCP	Border Crossing Point
BLEVE	Boiling Liquid Expanding Vapour Explosion
BOD5	5-Day Biochemical Oxygen Demand
C&D	Construction and Demolition
CAP	Contamination Assessment Plan
CAR	Contamination Assessment Report
CBD	United Nations Convention on Biological Diversity
CEDD	Civil Engineering and Development Department
CFA	Court of Final Appeal
CFD	Computational Fluid Dynamics
CHP	Combined Heat and Power
CIA	Chemical Industry Association
CITES	Convention on International Trade in Endangered Species of Wild Fauna and Flora
CNL	Corrected Noise Level
CNP	Construction Noise Permit
CO	Carbon Monoxide
COD	Chemical Oxygen Demand
CPLD	Committee on Planning and Land Department
CRTN	Calculation of Road Traffic Noise
C&SD	Census and Statistics Department
CWPs	Chemical Waste Producers
CZ	Consultation Zone
DC	Distance Attenuation
DG	Dangerous Goods
DNV	Det Norske Veritas
DO	Dissolved Oxygen
DRIFT	Dense Releases Involving Flammables or Toxics
E.coli	Escherichia coli
EIA	Environmental Impact Assessment
EIAO	Environmental Impact Assessment Ordinance
EIAO-TM	Technical Memorandum on Environmental Impact Assessment Process
EM&A	Environmental Monitoring and Audit
EMSD	Electrical and Mechanical Services Department
EPD	Environmental Protection Department
ETA	Event Tree Analysis
EU	European Union
EV	Electric Vehicle
FC	Façade Correction
FCA	Frontier Closed Area
FDM	Fugitive Dust Model
FLN	Fanling North
FLN NDA	Fanling North New Development Area
FN	Frequency/Number of Fatality
FNFSR	Fanling North Freshwater Service Reservoir
FRP	Fire Resistant Rating
FSD	Fire Services Department
FSP	Fine Suspended Particulates
FTA	Fault Tree Analysis
GB	Green Belt
GESF	Guidelines for Estimated Sewage Flow
GFS	Government Flying Service
GMP	Greening Master Plan
GMPNET	Greening Master Plan for Northwest New Territories
GW-TM	Technical Memorandum on Noise from Construction Work other than Percussive Piling
HA	Hazard Assessment
HAZOP	Hazard and Operability Study
HKBWS	Hong Kong Bird Watching Society
HKIA	Hong Kong International Airport
HKO	Hong Kong Observatory
HKPF	Hong Kong Police Force
HKPSG	Hong Kong Planning Standards and Guidelines
HKSAR	Hong Kong Special Administrative Region
HOKLAS	Hong Kong Laboratory Accreditation Scheme
HQ	Head Quarter
HSE	Health and Safety Executive
HyD	Highways Department
IATA	International Air Transport Association
ICAO	International Civil Aviation Organization
ICL	Initial Climb
IFs	Influencing Factors
I/M	Inspection and Maintenance
IND-TM	Technical Memorandum for the Assessment of Noise from Places other than Domestic Premises, Public Places or Construction Sites
ISCST3	Industrial Source Complex – Short Term Version 3
JSP	Joint Service Publication
KNP	Kong Nga Po
KTN	Kwu Tung North
LCAs	Landscape Character Areas
LD	Lethal Dose
LIA	Landscape Impact Assessment
LND	Landing
LPG	Liquefied Petroleum Gas
LRs	Landscape Resources
LWFR	Lo Wu Firing Range
MHIDAS	Major Hazard Incident Data Service
MMIS	Modified Mercalli Intensity Scale
MTLFR	Ma Tso Lung Firing Range
NCO	Noise Control Ordnance
NT North	New Territories North
NTNE	New Territories North East
NENT NDA	North East New Territories New Development Area
NO2	Nitrogen Dioxide
NOx	Nitrogen Oxides
NOISE	National Organization to Insure a Sound-controlled Environment
NRMM	Non-road mobile machinery
NSR	Noise Sensitive Receiver
O3	Ozone
OLM	Ozone Limiting Method
OVT	Old and Valuable Tree
OWTF2	Organic Waste Treatment Facilities Phase 2
OZP	Outline Zoning Plan
PATH	Pollutants in the Atmosphere and their Transport over Hong Kong
PC	Private Cars
Pcif	Catchment Inflow Factor
PD&TTF	Police Driving and Traffic Training Facilities
PDAs	Potential Development Areas
PFC	Public Fill Committee
PFRFs	Public Fill Reception Facilities
PHI	Potentially Hazardous Installation
PME	Powered Mechanical Equipment
PNL	Predicted Noise Level
PRC	People’s Republic of China
PRD	Pearl River Delta
PRDEZ	Pearl River Delta Economic Zone
PS	Pumping Station
PTF	Proposed Police Training Facility
PTU	Police Tactical Unit
QRA	Quantitative Risk Assessment
RAP	Remediation Action Plan
RBRGs	Risk-based Remediation Goals
RC	Reinforced Concrete
RCV	Refuse Collection Vehicle
RR	Remediation Report
RSP	Respirable Suspended Particulates
TD	Transport Department
TPDM	Transport Planning and Design Manual
TSP	Total Suspended Particulate
SE	South-east
SBF	Second Boundary Fence
SIL(E)	South Island Line (East)
SPL	Sound Pressure Level
SO2	Sulfur Dioxide
SS	Suspended Solids
SSSI	Site of Special Scientific Interest
SULFR	San Uk Ling Firing Range
SSWTW	Sheung Shui Water Treatment Works
SWHSTW	Shek Wu Hui Sewage Treatment Works
SWL	Sound Power Level
TM-DSS	Technical Memorandum on Standards for Effluents Discharged into Drainage and Sewerage Systems
TOF	Takeoff
UFF	Unit Flow Factors
USEPA	US Environmental Protection Agency
US FAA	US Federal Aviation Agency
VE	Visual Envelope
VOCs	Volatile Organic Compounds
VKT	Vehicle Kilometre Travelled
VSRs	Visual Sensitive Receivers
WCZs	Water Control Zones
WDO	Waste Disposal Ordinance
WMP	Waste Management Plan
WPCO	Water Pollution Control Ordinance
WQOs	Water Quality Objectives
WSD	Water Supplies Department
WTF	Weapons Training Facilities
VPs	Vantage Points
ZVIs	Zones of Visual Influence