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