CONTENTS

											Page
1.	INTRODUCTION									1-1

1.1	Background of the Project							1-1
1.2	Description of the Project							1-1
1.3	Location and Layout of the Project						1-2
1.4	Work Programme									1-2
1.5	Design Flow									1-2
1.6	Effluent Quality Standard							1-3
1.7	Preliminary Design of the Sewerage System					1-3
1.8	Key Environmental Issues							1-4
1.9	Objectives of Environmental Impact Assessment Study				1-5
1.10	Structure of this Report							1-6

2.	NO-GO SCENARIO AND DEVELOPMENT OPTIONS CONSIDERED				2-1

2.1	Existing Condition and No-go Scenario						2-1
2.2	General Setting									2-1
2.3	Potential Discharge Options							2-2
2.4	Sites for Sewage Treatment							2-3
2.5	Effluent Disposal Routes and Discharge Locations				2-6
2.6	Confirmation of Discharge Point at Tai O and Treatment Level at Ngong Ping	2-14
2.7	Recommended Sewerage Master Plan for Ngong Ping					2-15

3.	AIR QUALITY IMPACT								3-1

3.1	Legislation, Policies, Plans, Standards, and Criteria				3-1
3.2	Baseline Conditions								3-1
3.3	Air Sensitive Receivers								3-1
3.4	Assessment Methodology								3-3
3.5	Prediction and Evaluation of Potential Impacts					3-9
3.6	Mitigation of Adverse Impacts							3-12

4.	NOISE IMPACT									4-1

4.1	Legislation, Polices, Plans, Standards, and Criteria				4-1
4.2	Description of Environment							4-4
4.3	Assessment Methodology								4-6
4.4	Identification, Prediction and Evaluation of Potential Impacts			4-7
4.5	Mitigation of Adverse Impact							4-13
4.6	Influence from Other Projects							4-16
4.7	Definition of Adverse Impacts							4-17

5.	WATER QUALITY IMPACTS								5-1

5.1	Potential Impacts								5-1
5.2	Water Quality Sensitive Receivers and Beneficial Uses				5-1
5.3	Relevant Legislation and Guidelines						5-1
5.4	Construction Phase Impacts							5-5
5.5	Operational Phase Impacts Associated with Emergency Situations			5-10
5.6	Operational Phase Impacts due to the Export Effluent at Tai O			5-11
5.7	Literature Cited								5-33

6.	WASTE MANAGEMENT IMPLICATIONS							6-1

6.1	Legislation, Policies, Plans, Standards and Criteria				6-1
6.2	Assessment Methodology								6-3
6.3	Construction Waste Assessment							6-3
6.4	Operational Waste Assessment							6-5
6.5	Mitigation of Adverse Impacts							6-6
6.6	Definition and Evaluation of Residual Environmental Impacts			6-9

7.	LANDSCAPE AND VISUAL CHARACTER ASSESSMENT					7-1

7.1	Introduction									7-1
7.2	Assessment Methodology								7-1
7.3	Planning and Development Control Framework					7-4
7.4	Baseline Conditions								7-6
7.5	Landscape Character Zones							7-9
7.6	Landscape and Visually Sensitive Receivers					7-9
7.7	Construction Stage Impact Assessment						7-11
7.8	Mitigation Measures During the Construction Stage				7-18
7.9	Prediction of Significance of Landscape Impacts during the Construction Stage	7-18
7.10	Prediction of Significance of Visual Impacts during the Construction Stage	7-18
7.11	Operational Impacts								7-19
7.12	Mitigation Measures During the Operating Stage					7-21
7.13	Prediction of Significance of Landscape Impacts in the Operating stage		7-23
7.14	Prediction of Significance of Visual Impacts in the Operation Stage		7-23
7.15	Residual Impacts								7-26
7.16	Conclusions									7-26
7.17	Recommendations									7-27
7.18	Environmental Monitoring and Audit						7-27

8.	ECOLOGICAL IMPACT ASSESSMENT							8-1

8.1	Relevant Legislation, Guidelines and International Conventions			8-1
8.2	Assessment Methodology								8-1
8.3	Baseline Ecological Conditions							8-5
8.4	Evaluation of Habitats and Species						8-27
8.5	Impact Identification and Assessment						8-32
8.6	Mitigation Measures								8-35
8.7	Residual Impacts								8-36
8.8	Conclusions									8-36
8.9	Literature Cited								8-36

9.	FISHERIES IMPACTS								9-1

9.1	Introduction									9-1
9.2	Relevant Legislation and Guidelines						9-1
9.3	Baseline Conditions								9-1
9.4	Sensitive receivers								9-2
9.5	Impact Assessment								9-2
9.6	Fisheries Monitoring								9-5
9.7	References Cited								9-5

10.	CULTURAL HERITAGE								10-1

10.1	Introduction									10-1
10.2	Legislation and Applicable Standards						10-1
10.3	Assessment Methodology								10-2
10.4	Desktop Study of the Tai O Area							10-4
10.5	Survey at Wang Hang Tsuen and Hang Mei						10-5
10.6	Survey at Kwun Yam Shan								10-8
10.7	Survey at Ngong Ping								10-8
10.8	Impact Assessment								10-9
10.9	Conclusion									10-9
10.10	References									10-10

11.	ENVIRONMENTAL MONITORING AND AUDIT						11-1

12.	CONCLUSION AND RECOMMENDATION							12-1

12.1	Air Quality									12-1
12.2	Noise										12-1
12.3	Water Quality									12-2
12.4	Waste										12-3
12.5	Landscape and Visual								12-3
12.6	Ecology and Fisheries								12-5
12.7	Cultural Heritage								12-5

13.	IMPLEMENTATION SCHEDULE OF RECOMMENDED MITIGATION MEASURES			13-1

APPENDICES

APPENDIX 3A
Details of Hydrogen Sulphide Emission Calculation

APPENDIX 3B
Details of Construction Dust Emission Calculation

APPENDIX 3C
Proposed Public Transport Interchange

APPENDIX 4A
Construction Noise Assessment

APPENDIX 4B
Operational Noise Impact Prediction

APPENDIX 4C
Background Noise Measurement Results

APPENDIX 5A (See Volume II)
Model Performance Results of Fine Grid Model - Water Quality

APPENDIX 5B (See Volume II)
Model Performance Results of Tai O Detailed Model - Hydrodynamics

APPENDIX 5C (See Volume II)
Model Performance Results of Tai O Detailed Model - Water Quality - Dry Season 

APPENDIX 5D (See Volume II)
Model Performance Results of Tai O Detailed Model - Water Quality - Wet Season

APPENDIX 5E (See Volume II)
Tai O Sheltered Boat Anchorage Development - General Layout Plan for Modified Scheme Issued 

by Port Works Division of Civil Engineering Department in November 2001 (Ref No. P20206-6A)

APPENDIX 5F (See Volume II)
Water Quality Assessment Results - Dry Season

APPENDIX 5G (See Volume II)
Water Quality Assessment Results - Wet Season

APPENDIX 8A
Survey schedule

APPENDIX 8B	
Rare plant species recorded by Xing et al. (2000) within or in the vicinity of the Study Area

APPENDIX 8C	
Plant species recorded within the Study Area

APPENDIX 8D	
Bird Species recorded within or in the vicinity of the Study Area during the Hong Kong 

Breeding Bird Survey by the Hong Kong Bird Watching Society 

APPENDIX 8E	
Bird species and abundance recorded at sampling points (point count method) within the Study Area

APPENDIX 8F	
Bird species recorded within the Study Area

APPENDIX 8G	
Previous records of amphibian, reptile and mammal species within the Study Area

APPENDIX 8H	
Amphibian and reptile species recorded within the Study Area

APPENDIX 8I	
Dragonfly species recorded within the Study Area

APPENDIX 8J
Butterfly species recorded within the Study Area

APPENDIX 8K
Freshwater fish recorded within the Study Area

APPENDIX 8L
Aquatic fauna recorded from fine-mesh cast nets within the Study Area 

APPENDIX 8M	
Aquatic fauna recorded from three-layer gill net within the Study Area 

APPENDIX 8N	
Benthic organisms and their abundance recorded within the Study Area

APPENDIX 8O	
Density of intertidal fauna and percentage cover of sessile fauna and flora recorded 

on artificial boulder shore at Tai O

APPENDIX 8P
Additional Ecological Survey Supplementary Report

APPENDIX 10A
Cultural Heritage Assessment - Tables

APPENDIX 10B
Cultural Heritage Assessment - Figures

APPENDIX 10C
Cultural Heritage Assessment - Plates

DRAWINGS (INCORPORATED IN VOLUME II)

Drawing No. 23400/R/G/001	General Layout Plan of the Project
Drawing No. 23400/R/ST/013	Ngong Ping Sewage Treatment Works
Drawing No. 23400/R/PP/001-009	Effluent Export Pipeline Route
Drawing No. 23400/R/VS/001-002	Layout Plan of Ngong Ping Village Sewerage
	

Drawing No. 23400/EN/001	Water Quality Sensitive Receivers and Monitoring Points
Drawing No. 23400/EN/002	Not Used
Drawing No. 23400/EN/003	Grid Layout of Fine Grid Model
Drawing No. 23400/EN/004	Air Quality Impact Assessment Study Area around the Proposed Sewage Treatment Plant and Sewerage System at Ngong Ping
Drawing No. 23400/EN/005	Air Quality Impact Assessment Study Area around the Proposed Effluent Export Pipeline
Drawing No. 23400/EN/006	Noise Impact Assessment Study Area around the Proposed Sewage Treatment Plant and Sewerage System at Ngong Ping
Drawing No. 23400/EN/007	Noise Impact Assessment Study Area around the Proposed Effluent Export Pipeline
Drawing No. 23400/EN/008	Not Used
Drawing No. 23400/EN/009	Air and Noise Sensitive Receivers around the Proposed Sewage Treatment Plant and Sewerage System at Ngong Ping - Key Plan
Drawing No. 23400/EN/010	Air and Noise Sensitive Receivers around Ngong Ping Area
Drawing No. 23400/EN/011	Air and Noise Sensitive Receivers along Keung Shan Road
Drawing No. 23400/EN/012	Air and Noise Sensitive Receivers along Keung Shan and Tai O Roads
Drawing No. 23400/EN/013	Air and Noise Sensitive Receivers along Tai O Road - Sheet 1
Drawing No. 23400/EN/014	Air and Noise Sensitive Receivers along Tai O Road - Sheet 2
Drawing No. 23400/EN/015	Air and Noise Sensitive Receivers around Tai O Area
Drawing No. 23400/EN/016	Grid Layout of Tai O Detailed Model 
Drawing No. 23400/EN/017	Tai O Detailed Model Bathymetry for Assessment Model Runs
Drawing No. 23400/EN/018	Ngong Ping Sewerage System and Other Concurrent Projects
Drawing No. 23400/EN/019	Ngong Ping Sewerage Treatment Works and Possible Location of Cable Car Terminal
Drawing No. 23400/EN/020	Major Odour Sources within the Proposed Ngong Ping Sewage Treatment Works
Drawing No. 23400/EN/021	Predicted Worst-case 5-second Average Odour Levels at 1.5m above Ground for the Unmitigated Scenario
Drawing No. 23400/EN/022	Predicted Worst-case 5-second Average Odour Levels at 24m above Ground for the Mitigated Scenario
Drawing No. 23400/EN/023	Extract from Ngong Ping Development Permission Area Plan No. DPA/1-NP/2
Drawing No. 23400/EN/024	Landscape Character areas and Landscape Resources
Drawing No. 23400/EN/025	Visually Sensitive Receivers, Visual Envelope, and Location of Key Views 

Drawing No. 23400/EN/026	Construction Impacts on Landscape Character Areas and Landscape Resources
Drawing No. 23400/EN/027	Operational Impacts on Landscape Character Areas and Landscape Resources
Drawing No. 23400/EN/028	Residual Impacts on Landscape Character Areas and Landscape Resources
Drawing No. 23400/EN/029	Water Control Subzones Around Ngong Ping
Drawing No. 23400/EN/030	Potential Sites for Sewage Treatment Works, Private Land Lots and SSSI in Ngong Ping
Drawing No. 23400/EN/031	Potential Effluent Disposal Routes
Drawing No. 23400/EN/032	Potential Effluent Discharge Locations at Tai O
Drawing No. 23400/EN/033	Not Used
Drawing No. 23400/EN/034	Proposed Ngong Ping Sewerage Extension
Drawing No. 23400/EN/035	Locations of Air Quality Assessment Points
Drawing No. 23400/EN/036	Predicted Worst-case Hourly Average TSP Concentration Contours at 1.5m Above Ground for Unmitigated Case
Drawing No. 23400/EN/037	Predicted Worst-case Daily Average TSP Concentration Contours at 1.5m Above Ground for Unmitigated Case
Drawing No. 23400/EN/038	Predicted Worst-case Hourly Average TSP Concentration Contours at 1.5m Above Ground for Mitigated Case
Drawing No. 23400/EN/039	Predicted Worst-case Daily Average TSP Concentration Contours at 1.5m Above Ground for Mitigated Case
Drawing No. 23400/EN/040	Construction Impacts on Visually Sensitive Receivers
Drawing No. 23400/EN/041	Operational Impacts on Visually Sensitive Receivers
Drawing No. 23400/EN/042	Residual Impacts on Visually Sensitive Receivers
Drawing No. 23400/EN/043	Landscape Mitigation Measures Plan - Construction Phase
Drawing No. 23400/EN/044	Landscape Mitigation Measures Plan - Operational Phase
Drawing No. 23400/EN/045	Ngong Ping Sewage Treatment Works Layout Plan Drawing
Drawing No. 23400/EN/046	Ngong Ping Sewage Treatment Works Evaluation Drawings - Design Option 1
Drawing No. 23400/EN/047	Ngong Ping Sewage Treatment Works Evaluation Drawings - Design Option 2
Drawing No 23400/EN/048		Photomontage View 1- View From Ngong Ping Road
(Sheet 1 of 2)
Drawing No. 23400/EN/049	Photomontage View 1- View From Ngong Ping Road 
(Sheet 2 of 2)
Drawing No. 23400/EN/050	Photomontage View 2- View From Platform Immediately Surrounding Tian Tan Buddha Statute (Sheet 1 of 2)
Drawing No. 23400/EN/051	Photomontage View 2- View From Platform Immediately Surrounding Tian Tan Buddha Statute (Sheet 2 of 2)
Drawing No. 23400/EN/052	Photomontage View 3- View Looking Due South From Rocky Knoll Above Columbarium (Sheet 1 of 2)
Drawing No. 23400/EN/053	Photomontage View 3- View Looking Due South From Rocky Knoll Above Columbarium (Sheet 2 of 2)
Drawing No. 23400/EN/060	Locations of Selected Check Points
Drawing No. 23400/EN/061	Tai O Detailed Model Bathymetry for 1998
Drawing No. 23400/EN/062	Sampling locations
Drawing No. 23400/EN/063	Site of conservation importance within the Study Area
Drawing No. 23400/EN/064	Habitat types within the Study Area
Drawing No. 23400/EN/065a	Photos of habitat types recorded within the Study Area (1)
Drawing No. 23400/EN/065b	Photos of habitat types recorded within the Study Area (2)
Drawing No. 23400/EN/066	Species of conservation interest recorded within the Study Area
Drawing No. 23400/EN/067	Location of species of ecological interest recorded within the Study Area
Drawing No. 23400/EN/067a	Large scale plans showing sections of pipelines encroaching North Lantau Country Park and Ngong Ping SSSI
Drawing No. 23400/EN/068a,b,c,d	Dolphin sighting records

Drawing No. 23400/EN/078 	Aerial Photograph of the Study Area

Drawing No. 23400/EN/084	Noise Sensitive Receivers around Ngong Ping Village Sewerage

Drawing No. 23400/EN/085 	Not Used

Drawing No. 23400/EN/086	Proposed Land Requirement Plan
Drawing No. 23400/EN/087	Proposed Land Requirement Plan - Area A
Drawing No. 23400/EN/088	Proposed Land Requirement Plan - Area B
Drawing No. 23400/EN/089	Proposed Land Requirement Plan - Area C
Drawing No. 23400/EN/090	Proposed Land Requirement Plan - Area D
Drawing No. 23400/EN/091	Proposed Land Requirement Plan - Area E & F

BACK