TABLE OF CONTENTS

 

List of Figures

 

Figure 1-1      Location of the Proposed Peng Chau Sewage Treatment Works Upgrade on Tai Lei Island

 

Figure 2-1      Surrounding Environment of Peng Chau Sewage Treatment Works

Figure 2-2      Proposed Submarine Outfall and Emergency Overflow Outfall Options

Figure 2-3      Proposed Submarine and Emergency Overflow Outfall Locations

Figure 2-4a    General Layout for Proposed Peng Chau STW Upgrade – Ground Floor Plan                 

Figure 2-4b    General Layout for Proposed Peng Chau STW Upgrade – Roof Floor Plan

Figure 2-4c     Existing Landscape Environment Surrounding Peng Chau STW

Figure 2-4d    Landscape Design proposal and External Finishes of Peng Chau STW Upgrade

Figure 2-5a    Photomontage of the Proposed Peng Chau STW

Figure 2-5b    Photomontage of the Proposed Peng Chau STW

Figure 2-5c     Cross-sectional View of the Proposed Peng Chau STW Upgrade

Figure 2-5d    Prospective Drawing of Proposed Peng Chau STW Upgrade

Figure 2-6      Preliminary Construction Works Programme

Figure 2-7      Projects in the Vicinity of the Proposed Peng Chau STW Upgrade

 

Figure 3-1      Location of Identified Air Sensitive Receivers

Figure 3-2      Location of Construction Dust Emission Sources for Phase 1 and 2

Figure 3-3      Location of Major Odour Emission Sources

Figure 3-4      Peng Chau Sewage Pumping Station and Refuse Transfer Station – Location Plan

Figure 3-5      Unmitigated Scenario Worst 1-hour TSP Concentration Contours Plot (1.5m Above Ground Level)

Figure 3-6      Unmitigated Scenario Worst 24-hour TSP Concentration Contours Plot (1.5m Above Ground Level)

Figure 3-7      Mitigated Scenario Worst 1--hour TSP Concentration Contours Plot (1.5m Above Ground Level)

Figure 3-8      Mitigated Scenario Worst 24-hour TSP Concentration Contours Plot (1.5m Above Ground Level)

Figure 3-9      Unmitigated Scenario Worst 5-second Odour Level Contours Plot (1.5m Above Ground Level)

Figure 3-10    Mitigated Scenario Worst 5-second Odour Level Contours Plot (10m Above Ground Level)

Figure 3-11    Unmitigated Scenario (When Drying Bed is used) Worst 5-second Odour Level Contours Plot (1.5m Above Ground Level)

Figure 3-12    Mitigated Scenario (When Drying Bed is used) Worst 5-second Odour Level Contours Plot (10m Above Ground Level)

 

Figure 4-1      Location of Noise Monitoring at Peng Chau from Project of Infrastructure for Penny’s Bay Development

Figure 4-2      Locations of Identified Noise Sensitive Receivers (Construction Phase)

Figure 4-3      Locations of Identified Noise Sensitive Receivers (Operational Phase)

 

Figure 5-1      EPD Monitoring Stations and Beneficial Uses around Peng Chau and Tai Lei Island

Figure 5-2      Water Quality, Sediment Quality Hydrodynamic Survey Locations in 1996

Figure 5-3      Historical Density Profiles at Stations SM10 and SM11 (1995-2000)

Figure 5-4      Frequency Distribution of Velocity at Peng Chau – Wet Season

Figure 5-5      Frequency Distribution of Velocity at Peng Chau – Dry Season

Figure 5-6a    Current Vector at Peng Chau, Wet Season Neap Tide

Figure 5-6b    Current Vector at Peng Chau, Wet Season Neap Tide

Figure 5-7      Water Sensitive Receivers around Peng Chau and Tai Lei Island

Figure 5-8      Proposed Trench Dimension for Outfall Construction

Figure 5-9a    Typical Silt Curtain Design (Sheet 1 of 3)

Figure 5-9b    Typical Silt Curtain Design (Sheet 2 of 3)

Figure 5-9c     Typical Silt Curtain Design (Sheet 3 of 3)

Figure 5-10    Zones of Initial Dilution (Wet Seasons)

Figure 5-11    Zones of Initial Dilution (Dry Seasons)

 

Figure 6-1      Management Framework for Dredged/Excavated Sediment

Figure 6-2      Sediment Sampling Locations for the Proposed Project

 

Figure 8-1      Locations of Intertidal and Subtidal Benthic Surveys in 1996

Figure 8-2      Selected Sampling Stations near Peng Chau in the Study of Marine Benthic Communities in Hong Kong

Figure 8-3      Results of Reconnaissance Dive Survey

Figure 8-4      Sightings of Chinese White Dolphin and Finless Porpoises around Waters of Peng Chau

Figure 8-5      Locations of Intertidal and Subtidal Benthic Surveys for the Proposed Project

Figure 8-6      Locations of Coral Dive Survey for the Proposed Project

Figure 8-7      Correlation of Benthic Communities to Physical Habitat

Figure 8-8      Comparison between AFCD Marine Benthic Communities Survey Locations (TW44-TW47) and Survey of the Proposed Project (A-E)

Figure 8-9      Comparison of Substrate Types among Shallow (Top) and Deeper (Bottom) Sites

Figure 8-10    Sessile Intertidal Communities in the High (Top), Mid (Middle) and Low (Bottom) Tidal Zones (Dry Season)

Figure 8-11    Sessile Intertidal Communities in the High (Top), Mid (Middle) and Low (Bottom) Tidal Zones (Wet Season)

Figure 8-12    Mobile Intertidal Communities in the High (Top), Mid (Middle) and Low (Bottom) Tidal Zones (Dry Season)

Figure 8-13    Mobile Intertidal Communities in the High (Top), Mid (Middle) and Low (Bottom) Tidal Zones (Wet Season)

Figure 8-14    Habitat Map

Figure 8-15    Construction and Operational Impact Areas

Figure 8-16    Habitat Map Overlaid with Construction and Operational Impact Areas

 

Figure 9-1      Archaeological Sites at Peng Chau Island

Figure 9-2      Extent of the Geophysical Survey