Agreement
No. CE 13/2009 (WS)
In-situ
Reprovisioning of Sha Tin Water Treatment Works – South Works
Environmental
Impact Assessment Report
TABLE OF
CONTENTS
List of Figures
Figure 2.1 Location
Plan and the Major Scope of Works
Figure 2.2 Existing
Water Flow Schematic
Figure 2.3 Existing
Process Flow Diagram
Figure 2.4 Reprovisioned
Process Flow Diagram
Figure 2.5 General
Layout under Current Operation
Figure 2.6 General
Layout under Construction
Figure 3.1 Layout
Plan of Reprovisioned Sha Tin Water Treatment Works
Figure 4.1 Locations
of Representative Air Sensitive Receivers
Figure 4.2 Locations
of Construction Works Area
Figure 4.3 Locations
of Demolition Works Area
Figure 5.1 Locations
of Representative Noise Sensitive Receivers
Figure 6.1 Locations
of Water Sensitive Receivers
Figure 8.1 Walk-transect
and Sampling Location for Terrestrial Wildlife Survey (sheet 1 of 2)
Figure 8.2 Walk-transect
and Sampling Location for Terrestrial Wildlife Survey (sheet 2 of 2)
Figure 8.3 Habitat
Map (sheet 1 of 2)
Figure 8.4 Habitat
Map (sheet 2 of 2)
Figure 8.5 Woodland
Compensation Area (sheet 1 of 2)
Figure 8.6 Woodland
Compensation Area (sheet 2 of 2)
Figure 8.7 Key
Plan on Habitat Affected by the Proposed Works
Figure 9.1.0 Landscape and Visual Impacts Study
Boundary
Figure 9.1.1 Planning and Development Control Framework
Figure 9.2.1 Landscape Resources Plan
Figure 9.2.2 Photo of Landscape Resources
Figure 9.3.1 Landscape Character Areas Plan
Figure 9.3.2 Photo of Landscape Character Areasfig\fig04.01.pdf
Figure 9.4.1 Key Visual Sensitive Receivers Plan (VSR)
Figure 9.4.2 Photo of Visual Sensitive Receivers
Figure 9.5.1 Landscape and Visual Mitigations Measures
Figure 9.5.2 Landscape Master Plan
Figure 9.6.1 Photomontage Viewpoint Locations
Figure 9.6.2 Photomontage Viewpoint from Hin Wan House
of Hin Keng Estate (sheet 1 of 4)
Figure 9.6.3 Photomontage Viewpoint from Hin Wan House
of Hin Keng Estate (sheet 2 of 4)
Figure 9.6.4 Photomontage Viewpoint from Hin Wan House
of Hin Keng Estate (sheet 3 of 4)
Figure 9.6.5 Photomontage Viewpoint from Hin Wan House
of Hin Keng Estate (sheet 4 of 4)
Figure 10.1 Cultural
Heritage Resources within 300m Study Area
Figure 10.2 Geology
of the Study Area
Figure 11.1 Location
Plan and the Major Scope of Works
Figure 11.3 Schematic
Layout Plan for Area A and Proposed Sampling Location
Figure 11.4 Schematic
Layout Plan for Area B and Proposed Sampling Location
Figure 11.5 Schematic
Layout Plan for Area C and Sampling Location
Figure 11.6 Schematic
Layout Plan for Area D, E and Sampling Location
Figure 11.7 Schematic
Layout Plan for Area F and Sampling Location
Figure 11.8 Schematic
Layout Plan for Area G and Sampling Location
Figure 11.9 Schematic
Layout Plan for Area H, I and L and Sampling Location
Figure 11.10 Schematic
Layout Plan for Area J and Sampling Location
Figure 11.11 Schematic
Layout Plan for Area K and Sampling Location
Figure 12.1 Societal
Risk Guidelines for Acceptable Risk Levels (EIAO-TM)
Figure 12.2 Sha Tin WTW Location and Consultation Zone
Figure 12.3 Existing Layout of Sha Tin WTW
Figure 12.4 Topography of the Sha Tin WTW Area (not to scale)
Figure 12.7 FN curve from the 2001 Sha Tin WTW Hazard Assessment (ERM,
2001)
Figure 12.8 Population Units used in QRA (figure 1 of 2)
Figure 12.9 Population Units used in QRA (figure 2 of 2)
Figure 12.10 Population Units for the Reprovisioning Works
Figure 12.11 Beacon Hill North Gas Offtake Station
Figure 12.13 FN Curve for STWTW: Operational Phase (PLL for Total Population
is 6.0E-5)
Figure 12.14 Individual Risk Contours
Figure 12.16 Chlorine Transport Route to Sha Tin Water Treatment Works
Figure 12.17 Open (blue) and Urban (red) Sections of the Delivery Route
Figure 12.18 ALOHA Consequence Contours, RD Case
Figure 12.19 ALOHA Consequence Contours, RDM1 Case
Figure 12.20 Presentation of Consequence Results
Figure 12.21 Drum Lashing and Clamp Arrangements
Figure 12.22 Chlorine Transport Route and PDZ Zones
Figure 12.23 A Map of OZPs in Ma Wan
Figure 12.24 Population Polygons
Figure 12.25 FN Curves for Off-site Chlorine Transport
Figure 12.26 FN Curves for Off-site Chlorine Transport Breakdown by Scenario
Figure 12.27 Individual Risk for Off-site Chlorine Transport, Operational
Phase
Figure 12.28 Mitigated FN Curves for STWTW
Figure 12.29 FN Curves for Total Chlorine Risk of STWTW
Figure 12.30 Chlorine Total Individual Risk, Operational Phase
Figure 12.31 FN Curves of cumulative risks within STWTW Consultation Zone
Figure 12.32 Cumulative Individual Risk - Construction Phase
Figure 12.33 Cumulative Individual Risk – Operational Phase
Appendices
Appendix 2.1 Construction
Programme
Appendix 2.2 Drinking
Water Quality Standards
Appendix 5.1 Measurement
Results for Prevailing Noise Levels
Figure
A5.1 Measurement Locations for
Prevailing Noise Levels
Figure A5.2.1 Locations of
Construction Works Area
Figure A5.2.2 Locations of
Demolition Works Area
Figure A5.2.3 Locations of Haul
Road
Appendix 5.4 Noise
Measurement Results for Existing Plants for North Works of Sha Tin WTW
Appendix 5.5 Calculations
of Construction Noise Levels (without Mitigation Measures)
Appendix 5.7 Calculations
of Construction Noise Levels (with Mitigation Measures)
Appendix 5.8 Calculations
of Fixed Plant Noise
Figure
A5.8 Locations of Fixed Plant Noise
Sources
Appendix 7.1 Construction
and Demolition Material Management Plan (C&DMMP)
Appendix 7.2 Public
Fill Committee Endorsement on C&DMMP
Appendix 8.1 Representative
Photographs of Habitats Recorded within the Study Area
Appendix 8.2 Photographs of Species of
Conservation Importance
Appendix 8.3 Plant
Species Recorded within the Assessment Area at Sha Tin WTW
Appendix 8.4 Fauna
Recorded from the Study Area
Appendix 9.1 Illustration
of landscape and visual mitigation measures
Appendix 10.1 Built
Heritage Recording Sheets
Appendix 11.1 Final
Contamination Assessment Plan
Appendix 12.1 DRIFT
Flat Terrain Dispersion Modelling
Appendix 12.2 Wind
Tunnel Test Results for Sha Tin WTW
Appendix 12.3 CFD
Modelling Results for Sha Tin WTW and Tai Po Tau WTW
Appendix 12.4 Application
of Chlorine Dispersion Modelling Results in QRA
Appendix 12.5 Chlorine
Cloud Height Predictions
Appendix 12.6 Definition
of Time Periods and Population Scaling Factors
Appendix 12.7 Seismic Hazard Assessment
Appendix 12.8 Quantitative
Assessment of Potential Hazards due to Construction Activities
Appendix 12.9 Potential
Impacts of Construction Works on the 400kV Power Line
Appendix 12.10 Human Error Assessment &
Reduction Technique (HEART)
Appendix 12.11 Off-site
Chlorine Transport Risk from SSK Dock to STWTW
Plates
Plate 10.1 1963 Aerial Photo
of Sha Tin showing the Pre-reclaimed Landscape