TABLE OF CONTENTS

 

List of Tables

 

Table 2-1        Summary of Public Consultations

Table 2-2        Impacts summary for Four Outfall Options

Table 2-3        Configurations of STW and Emergency Overflow Outfall

Table 2-4        Evaluation of Secondary Treatment Processes

Table 2-5        Evaluation of Chlorination and UV Radiation

 

Table 3-1        Hong Kong Air Quality Objectives

Table 3-2        Background Air Quality at Tung Chung AQMS for 2001

Table 3-3        Air Quality Monitoring at Penny’s Bay (2000)

Table 3-4        Identified Air Sensitive Receivers

Table 3-5        Odour Level Conversion Factors

Table 3-6        Worst TSP Concentrations (Unmitigated Scenario)

Table 3-7        Worst TSP Concentrations (Mitigated Scenario)

Table 3-8        Worst 5-second Average Odour Levels(Unmitigated Scenario)

Table 3-9        Worst 5-second Average Odour Level (Mitigated Scenario)

Table 3-10      Worst 5-second Average Odour level (Unmitigated Scenario) (when Drying Bed is used)

Table 3-11      Worst 5-second Average Odour level (Mitigated Scenario) (when Drying Bed is used)

 

Table 4-1        Permitted Hours of Operation for Percussive Piling

Table 4-2        Acceptable Noise Levels (ANLs, Laeq, 5 min dB) for General Construction Works to be Carried Out during Restricted Hours

Table 4-3        TMEIAP Construction Noise Standard

Table 4-4        Acceptable Noise Levels from Fixed Points (ANL, Leq, 30min dB(A))

Table 4-5a      Noise Measurement Summary at Sea Crest Villa in 1999

Table 4-5b      Noise Measurement Summary at Sea Crest Villa in 2001

Table 4-5c      Noise Measurement during Penny’s Bay Phase 1 Construction Work at Sea Crest Villa, Peng Chau

Table 4-6        Noise Limit for the Operation of Peng Chau STW Upgrade

Table 4-7        Identified NSRs during Construction Phase

Table 4-8        Identified NSRs during Operational Phase

Table 4-9        Approximate Distance of NSRs from Noise Sources during Construction Phase

Table 4-10      Calculated Sound Power Level at Each Key Construction Stage

Table 4-11      Plant Inventory for the Operation of the STW Upgrade

Table 4-12      Approximate Distance of NSRs from Noise Sources during Operational Phase

Table 4-13      The Worst Predicted Noise Levels at Identified Noise Sensitive Receivers

Table 4-14      Cumulative Construction Noise Impact at N-C4

Table 4-15     The Worst Predicted Noise Levels at Identified Noise Sensitive Receivers (Mitigated Scenarios)

Table 4-16      Cumulative Construction Noise Impact at N-C4 (Mitigated Scenario)

Table 4-17      Predicted Noise Level during Operational Phase (without Shielding)

Table 4-18      Predicted Noise Level during Operational Phase (with concrete building enclosure)

 

Table 5-1        Selection of Water Quality Objectives – Southern WCZ

Table 5-2        Water Quality Standards for Effluent Discharges into the Inshore Waters of Southern Water Control Zone

Table 5-3        Summary Statistics of Water Quality at Stations SM 10 and SM 11 (Selected Parameters)

Table 5-4        Wet Season Water Quality Baseline Monitoring Results – Peng Chau (1996)

Table 5-5        Dry Season Water Quality Baseline Monitoring Results – Peng Chau (1996)

Table 5-6        Summary of Sediment Quality in Station SS5 (1997 – 2001)

Table 5-7        Sediment Quality around Peng Chau (1996)

Table 5-8        Identified Marine Water Sensitive Receivers

Table 5-9a      Design Parameters and Capacities of Peng Chau STW Upgrade

Table 5-9b      Alternative Effluent Standards

Table 5-10      Suspended Solids Concentration at Distances from Source (Unmitigated)

Table 5-11      Suspended Solids Concentration at Distances from Source (Mitigated)

Table 5-12      Wet Season Near-Field Modelling Results

Table 5-13      Dry Season Near-Field Modelling Results

Table 5-14      Pollutant Concentration at the Edge of Initial Dilution Zone, Planned Average Dry Weather Flow

Table 5-15      Pollutant Concentration at the Edge of Initial Dilution Zone, Peak Dry Weather Flow

Table 5-16a    TRC Levels at the Edge of Initial Dilution Zone with 1 mg/L Discharge

Table 5-16b    TRC Levels at the Edge of Initial Dilution Zone with 0.8 mg/L Discharge

Table 5-17      Far Field Dilution along Plume Trajectory

Table 5-18      Pollutant Concentrations after Far Field Dispersion (Treated Effluent)

Table 5-19      Nitrogen Species Concentration at the Edge of Initial Dilution Zone (TN 5mg/L)

Table 5-20      Pollutant Concentrations after Far Field Dispersion (Untreated Discharge)

 

Table 6-1        Sediment Quality Criteria for the Classification of Sediment

Table 6-2        Sediment Quality around Peng Chau (Maunsell 1997)

Table 6-3        Results of the Chemical Screening

 

Table 7-1        Types and Quantities of Construction Waste

 

Table 8-1        Benthic Data Summary

Table 8-2        Species Recorded from Hard/Cobble Shore: Transects 1 and 2, Tai Lei (Peng Chau) August 1996 (Maunsell, 1997)

Table 8-3        Co-ordinates of Benthic Sampling Stations

Table 8-4        Benthic Data Summary (Dry and Wet Seasons)

Table 8-5        Ecological and Substratum Attributes

Table 8-6        Ordinal Ranks of Percentage Cover

Table 8-7        Percent Cover of Substratum Type on Dive Survey Transects

Table 8-8        Ordinal Rankings of Sessile Benthic Biota and Ecological Attributes on Dive Survey Transects

Table 8-9        Site Differences in Live Hard Coral Parameters for Shallow Transects

Table 8-10      Summary of Reconnaissance Dive Survey 2001

Table 8-11      Summary of Differences between Peng Chau STW Upgrade (2003) and Reconnaissance Dive Survey (2001) Findings

Table 8-12      Ecological Value of Soft Sub-tidal Habitats

Table 8-13      Ecological Value of Hard Sub-tidal Habitats (Corals)

Table 8-14      Ecological Value of Intertidal Habitats

Table 8-15      Summary of Impact Evaluation due to Habitat Loss

Table 8-16      Summary of Impact Evaluation due to Sedimentation

Table 8-17      Summary of Impact Evaluation due to Operation of STW

 

Table 11-1      Implementation Schedule of Air Quality Mitigation Measures

Table 11-2      Implementation Schedule of Noise Mitigation Measures

Table 11-3      Implementation Schedule of Water Quality Measures

Table 11-4      Implementation Schedule of Solid Waste Mitigation Measures

Table 11-5      Implementation Schedule of Marine Ecological Mitigation Measures

 

Table 12-1      Summary of Key Environmental Outcomes/Benefits