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