Executive Summary

 


 

 

CONTENTS

 

                                                                                                                                        Page

Volume 1 of 5 (Part 1)

 

1.                  INTRODUCTION                                                                                               1-1

 

2.                  DESCRIPTION OF THE PROJECT                                                                   2-1

 

3.                  HYDROLOGY IMPACT ASSESSMENT                                                          3-1

 

4.                  ECOLOGY IMPACT ASSESSMENT                                                                4-1

 

5.                  FISHERIES IMPACT ASSESSMENT                                                                5-1

 

6.                  AIR QUALITY IMPACT ASSESSMENT                                                          6-1

 

7.                  NOISE IMPACT ASSESSMENT                                                                       7-1

 

Volume 2 of 5 (Part 2)

 

8.                  WATER QUALITY IMPACT ASSESSMENT                                                   8-1

 

9.                  WASTE IMPACT ASSESSMENT                                                                      9-1

 

10.              CONTAMINATED LAND ASSESSMENT                                                      10-1

 

11.              CULTURAL HERITAGE IMPACT ASSESSMENT                                          11-1

 

12.              LANDSCAPE AND VISUAL IMPACT ASSESSMENT                                  12-1

 

13.              CONSTRUCTION METHODS, PROGRAMME &                                          13-1

USAGE OF NEW TECHNOLOGIES                                                                                   

 

14.              LAND USE & URBAN PLANNING IMPLICATION FOR SPUR LINE         14-1

 

15.              ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS          15-1

 

16.              CONCLUSIONS AND RECOMMENDATIONS                                             16-1

 

 

Appendices

 

Volume 3 of 5 (Part 1)

 

A                  Environmental legislation and planning guidelines

A2.1             Evaluation of alternative alignment options

A3.1             Geological assessment details for hydrological impact assessment

A3.1a            Borehole records

A3.1b           Cross sections

A3.1c            Data field sheet at exiting pump well Wm2A observation wells Sp1, Sp2 & Sp3 and reference point ‘S2” on the bridge

A3.1d           Permeability test results

A3.1e            Location plans of proposed tunnel alignment at Long Valley

A3.1f            Seep/w modelling results and diagrams

A3.1g            Seep/w model analysis

A3.2             Additional hydrology issues

A3.2a            Borehole records

A3.2b           Geological sections

A3.2c            Sensitivity analysis

A4.1             Ecological baseline report for spur line alignment

 

Volume 4 of 5 (Part 2)

 

A4.2             Draft habitat creation management plan for Lok Ma Chau Fishponds Compensation area

A4.3             Comparison of HKBWS Waterfowl Data for San Tin / Lok Ma Chau Ramsar Site (1999/2000) and Data from Baseline Report (2000/2001)

A4.4             Notes Relating to the Assessment of the Impacts of Disturbance on Individual Species

A4.5             Cases of Successful Habitat Enhancement for Species

A5.1             Glossary for Fisheries Impact Assessment

A7.1             Construction Noise Calculations

A7.1a            Worst case construction noise assessment scenario, their relevant construction activities and predicted noise levels due to each activity

A7.1b           Equipment schedule and sound power levels of construction activities identified under the worst case scenario

A7.1c            Provisional construction equipment schedule and preliminary construction programme for all works between CH30+227

A7.1d           Summary of Predicted Construction Noise Levels at Representative Noise Sensitive Receivers

A7.2             Operational noise assessment details

A7.2a            Design speed profile of trains on east rail and spur line

A7.2b           Procedures for airborne noise calculations of EMU train noise an description of a sample calculation for RNSR 2-1

A7.2c            Breakdown of future unmitigated and mitigated rail nose levels

A7.2d           Proposed speed profile of trains on east rail and spur line

A8.1             Effluent Quality for Treatment Plant at West Rail Contract DB320

A10.1           Contaminated assessment plan

A10.1a          Contaminated land site survey details

A11.1a          Cultural heritage assessment detail

A15.1           EM&A Action Plans

 

 

List of figures

 

Volume 5 of 5

 

2.1                                Horizontal Alignment of Spur Line and the Study Area

2.2                                Vertical Profile of Spur Line

2.3                Concurrent Projects within the vicinity of Spur Line

2.4                Locations of alternative alignment considered under the PPFs with the environmentally preferred alignment high lighted

2.5                Sheung Shui to LMC Spur Line tunnel option - 132kV cable diversion (partly within wetland conservation area)

3.1                AFCD Inflatable Dam and Irrigation Schematic Layout in Long Valley

3.2                Long Valley Surface Hydrology and Irrigation Layout

3.3                Long Valley Surface Hydrology and Irrigation Layout

3.4                                Long Valley Surface Hydrology and Irrigation Layout

3.5                                Location Plan of Existing Drillholes and Wells and Additional Drillholes

3.6                                Typical installation details of Piezomter /  Standpipe in a Borehole

4.1a              Ecological Habitats within the Study Area (500 m from Spur Line Alignment)

4.1b              Ecological Habitats within the Study Area (500 m from Spur Line Alignment)

4.2                Ecologically Sensitive Areas Around Study Area

4.3                                Disturbance Impact Zone from Spur Line and Other Projects in Lok Ma Chau Area

4.4                                Calculation of land requirement to compensate for habitat loss due to disturbance (Black faced Spoonbill chosen as an example)

4.5                                Area of Proposed Ecological Compensation Measures in Lok Ma Chau

4.6                                LMC Fishponds and Freshwater Marsh – General Layout

4.7                                Example of reprofiling of bunds in managed fish pond area around Lok Ma Chau Station

4.8                                Freshwater Marsh – south of the LMC station showing contours

4.9                                Planting plans

4.10a            Pre-construction enhancement and current situation showing disturbance zones of current infrastructure

4.10b            During Station site formation, ponds to be used for enhancement, ponds with high fish stocking function within disturbance zone

4.10c            Operation - Following completion of station infrastructure, creation of marsh, landscaping and final pond enhancement

6.1                Representative NSR and ASR (sheet 1 to 5 of 5)

6.2                Topographic features of the Deep Bay Airshed

6.3                Wind Rose for Lau Fau Shan Monitoring Station

6.4                Wind Rose for Ta Kwu Ling Monitoring Station

7.1                Construction phase representative NSR & locations of construction phase noise barriers (sheet 1 to 5 of 5)

7.2a              Locations of Point and Crossing

7.2b              Proposed Operational Phase Location of Rail Noise Mitigation Measure

7.2c              Locations of Point and Crossing on Existing East Rail Alignment (Near Sheung Shui)

7.2d              Existing and Interim Alignment of East Rail

7.2e              Locations of Points and Crossing (Interim Period)

8.1                Water sensitive receivers and major concurrent projects

8.2                                EPD marine water and sediment quality monitoring stations in Deep Bay

8.3                                Layout of treatment plant of launching shaft works area in Sheung Shui

8.4                                Location of reedbed proposed for effluent polishing

8.5                                Proposed layout for reedbed

9.1                                Geological profile along Spur Line Alignment

9.2                                Works areas, rate of waste generation & disposal routes Spur Line alignment.

10.1                            Sites identified as having potentially contaminated land (sheet 1 of 4)

10.2                            Sites identified as having potentially contaminated land (sheet 2 of 4)

10.3                            Sites identified as having potentially contaminated land (sheet 3 of 4)

10.4                            Sites identified as having potentially contaminated land (sheet 4 of 4)

10.5                            Locations & Labelling of potentially contaminated sites included under the previous cap & EIA (BBV, 2000)

10.6                            Proposed boreholes and trial pits for contamination assessment plan (CAP)

10.7                            Proposed boreholes and trial pits for contamination assessment plan (CAP)

10.8                            Proposed boreholes and trial pits for contamination assessment plan (CAP)

10.9                            Proposed boreholes and trial pits for contamination assessment plan (CAP)

11.1a            Spur Line alignment showing study units for cultural heritage assessment

11.1b            Spur Line alignment showing study units for cultural heritage assessment

11.2              Auger hole locations in Unit 1

11.3              Test pit #4 and auger hole locations in Unit 2

11.4              Test pit #2 and auger hole locations in Unit 3

11.5              Test pit #3 and auger hole locations in Unit 4

11.6a            Unit 5 Auger holes 1-7

11.6b            Unit 5 Auger holes 8-14

11.7              Unit 6 Auger holes 1-8 and test pit #5

11.8                            Test pit #1 and auger hole locations in Unit 7

11.9              Unit 8 Auger holes 1-10

11.10            Unit 9 Auger holes 1-4

12.1                            Location plan

12.2a-b         Landscape resources

12.3a-b         Landscape character & quality assessment

12.4a-b         Landscape planning review

12.5a-b         Visual envelope

12.6a-b         Visual impact assessment

12.7a, b, c, d, e, f, g, h, i, j, k, l, m, n, o         Landscape mitigation proposals

12.8a-b         Typical sections

12.9                            Photomontage location plan            

12.10a-b       Photomontages showing view from Lok Ma Chau Lookout Point towards the proposed Terminus Building  

12.10c          Photomontages showing view from road south of Chau Tau towards Western Ventilation Building

12.10d, e, f        Photomontages showing view from Chau Tau south towards Ki Lung Shan

12.10g-h       Photomontages showing view from western bank of River Beas MDC north towards the village of Ho Sheung Heung and the summit of Tai Shek Mo

12.10i-j         Photomontages showing view from western bank of River Sutlej towards Eastern EAP structure

12.10k-l        Photomontages showing view from San Wan Road below Po Shek Wu road bridge looking south east

12.10m-n      Photomontages showing view from Temple at Ho Sheung Heung southeast towards Long Valley

12.10o-p       Photomontages showing view from the 14th floor of Choi Ping House looking north over Sheung Shui

13.1              LMC Spur Line overall construction programme

15.1                            Water quality monitoring

 

 

LIST OF TABLES

 

Volume 1 of 5 (Part 1)

 

Table 1.1       Environmental Issues Addressed in this EIA report

Table 2.1       Key Elements of the Spur Line Scheme with Chainages

Table 2.2       Preliminary Summary Construction Programme

Table 2.3       Construction Sequence – East End of Spur Line Alignment

Table 2.4       Comparison of Environmental Impacts Related to Vertical Alignment Options

Table 2.5       Comparison of Vertical Alignment Selection within Engineering Constraints

Table 3.1       Borehole and Soil Testing Information in Long Valley

Table 3.2       Examples of TBM Tunnel Projects Worldwide

Table 3.3       Long Valley – Action Plan for Potential Changes in Groundwater Regime or Surface Settlement during Construction

Table 4.1       Coverage of Different Habitat Types within the Study Corridor

Table 4.2       Species of Conservation Importance that are known or likely to occur in Significant Number within 500 m of the Proposed Route between Sheung Shui Station and Lok Ma Chau Station

Table 4.3       Mammal Species of Conservation Importance Recorded within the Study Area

Table 4.4       Species of Conservation Importance occuring within 500 m of the Spur Line during the Baseline Surveys and their Distribution within the Study Area

Table 4.5       Species of Conservation Concern Recorded during the Baseline Surveys.  Species Regularly Recorded are shown in Bold.

Table 4.6       Species of Conservation Importance occurring within 500 m of the Spur Line and their Distribution within 500 m of the Spur Line and their distribution with respect with respect to habitat type

Table 4.7       Reptiles and Amphibians of Conservation Importance Recorded in the Study Area.  Species recorded during Baseline Survey from April 2000 – May 2001

Table 4.8       The Location, Larval Food Plant and Status in Hong Kong of Butterfly Species of Conservation Importance

Table 4.9       Ecological Evaluation of Fung-shui Forests within the Study Area

Table 4.10     Ecological Evaluation of Lowland Secondary Forest

Table 4.11     Ecological Evaluation of Plantation Forest

Table 4.12     Ecological Evaluation of Orchard

Table 4.13     Ecological Evaluation of Active Wet Agriculture Land

Table 4.14     Ecological Evaluation of Active Dry Agriculture Land

Table 4.15     Ecological Evaluation of Inactive Wet Agriculture Land

Table 4.16     Ecological Evaluation of Inactive Dry Agriculture Land

Table 4.17     Ecological Evaluation of Managed Wetland

Table 4.18     Ecological Evaluation of Active Fish Ponds

Table 4.19     Ecological Evaluation of Inactive Fish Ponds

Table 4.20     Ecological Evaluation of Bloodworm Ponds

Table 4.21     Ecological Evaluation of Marsh

Table 4.22     Ecological Evaluation of Water Courses

Table 4.23     Grassland-shrubland Mosaic

Table 4.24     Ecological Evaluation of Wasteland

Table 4.25     Ecological Evaluation of Developed Area

Table 4.26     Summary of Habitat Evaluations

Table 4.27     Long-term Habitat Loss due to Permanent Structures and the Viaduct “Shadow”

Table 4.28     Predicted Disturbance Impacts of the Railway and Station on Species of Conservation Importance Regularly occurring at Lok Ma Chau

Table 4.29     Habitats and Areas within Defined Bands around Lok Ma Chau Station

Table 4.30     Locations of Habitats of Moderate or high Ecological Value where Adverse Construction Impacts are possible

Table 4.31     Initial Assessment of Potential Ecological Impacts on Forest Habitats from the Construction of the Spur Line

Table 4.32     Initial Assessment of Potential Ecological Impacts on Agricultural Habitats from the Construction of the Spur Line

Table 4.33     Initial Assessment of Potential Ecological Impacts on Fishpond and Pond Habitats from the Construction of the Spur Line

Table 4.34     Locations of Habitats of Moderate or High Ecological Value where Adverse Operational Impacts are possible

Table 4.35     Initial Assessment of Potential Ecological Impacts on Forest Habitats from the Operation of the Spur Line

Table 4.36     Initial Assessment of Potential Ecological Impacts on Agricultural Habitats from the Operation of the Spur Line

Table 4.37     Initial Assessment of Potential Ecological Impacts on Fish Pond and Pond Habitats from the Operation of the Spur Line

Table 4.38     Summary of Major Committed Projects Adjacent to the Spur Line

Table 4.39     Land Requirement to Compensation for Habitat Loss for Large Waterbirds during Construction Stage

Table 4.40     Land Requirement to Compensation for Habitat Loss for Large Waterbirds during Operation Stage

Table 4.41     Summary of Habitat Requirement for Target Bird Species of Conservation Importance at Lok Ma Chau

Table 4.42     Targets for Non-avian Species at Lok Ma Chau

Table 4.43     Comparison of Functional Values of Habitats before and after Construction of Lok Ma Chau Spur Line

Table 4.44     Land Requirement for Compensatory Habitat Provision and other Creation of Habitats of Ecological Value

Table 4.45     The Overall Levels of Compensation Predicted from Compensation Measures for Species of Conservation Importance that were recorded during the Baseline Surveys in the Lok Ma Chau Fishpond Area

Table 4.46     Proposed Mitigation Measures and Predicted Residual Impacts

Table 5.1       Area and Percentage Coverage of Ecological Habitats within the Study Corridor Including Values for Active and Inactive Fish Ponds

Table 5.2       Common Vegetation Frequently found Growing on Bunds of Fish Ponds

Table 5.3       Total Area of Fish Ponds in Hong Kong

Table 5.4       Species of Fish Commonly Reared in Poly Culture and Mon Culture Fish Ponds

Table 5.5       Recommended Water Quality Standard for Refilling Fish Ponds

Table 5.6       Countries from which Fish Fry and Fingerlings are Imported

Table 5.7       Feed Types Added to Polyculture Fish Ponds

Table 5.8       Production Period and Typical Market Size of Fish Reared in Polyculture Systems

Table 5.9       Species of Trash Fish that are Commonly Found in Fish Ponds

Table 5.10     Summary of the Potential Financial Loss per Hectare due to Predation by Birds

Table 5.11     Typical Weight of Fish Harvested per hectare of Fish Pond and Corresponding Market Value of Fish

Table 5.12     Evaluation of the Environmental and Socio-Economic Importance of Fish Ponds Aquaculture Practices in the Sheung Shui – Lok Ma Chau Area

Table 5.13     Long-term Estimated Direct Habitat Loss (ha) as a Result of the Construction of the Spur Line

Table 5.14     Summary of the Potential Loss of Production and Revenue Attributed to the Loss of Fish Ponds within the Study Area

Table 6.1       Hong Kong Air Quality Objectives (AQOs)

Table 6.2       Representative Air Sensitive Receivers

Table 6.3       Air Pollutants Concentrations at Yuen Long EPD Station (2000)

Table 6.4       Air Pollutants Concentrations at Tai Po EPD Station (2000)

Table 6.5       Estimated Material Quantities for the Spur Line

Table 6.6       Summary of Major Committed Projects adjacent to the Spur Line

Table 7.1       Details of Representative Noise Sensitive Receivers

Table 7.2       The Highest Unmitigated Worst Case Predicted Noise Levels at Each RNSR and Comparison with Noise Assessment Criteria

Table 7.3       Limits of Maximum Sound Power Levels Allowed for Construction Activities at Various Locations of Spur Line

Table 7.4       The Predicted Mitigated Noise Levels at Each RNSR during Worst Case Scenarios and Comparison with Noise Assessment Criteria

Table 7.5       Details of Representative Noise Sensitive Receivers

Table 7.6       Offsets Adopted in Estimating Noise Source Location

Table 7.7       Location of Point and Crossings (Future East Rail and Spur Line)

Table 7.8       Major Railway Parameters

Table 7.9       Comparison of the Predicted Unmitigated Night-time (23:00-07:00) Spur Line / East Rail Noise Levels against Noise Criteria, dB(A)

Table 7.10     Comparison of the Predicted Unmitigated Daytime (07:00-23:00) Spur Line / East Rail Noise Levels against Noise Criteria, dB(A)

Table 7.11     Comparison of the Predicted Mitigated Night-time (23:00-07:00) Rail Noise Levels against Noise Criteria, dB(A)

Table 7.12     Locations of Points and Crossings (Existing ER)

Table 7.13     Difference between Mitigated and Unmitigated East Rail / Spur Line and Existing East Rail, dB(A) (Night Time Period, 2300-0700)

Table 7.14     Points and Crossings of Interim ER

Table 7.15     Difference between Interim East Rail and Night Time Railway Noise Criteria, dB(A)

Table 7.16     Design Noise Limits at Exits/Entrances of Ventilation Building / Transformer Rooms, dB(A)

 

Volume 2 of 5 (Part 2)

 

Table 8.1       Summary Water Quality Data for River Beas During Recent Years (EPD River Water Quality 1996 to 1999)

Table 8.2       Summary Water Quality Data for River Indus During Recent Years (EPD River Water Quality 1996 to 2001)

Table 8.3       Sediment Quality in River Beas (Maunsell 1997)

Table 8.4       Elutriate Test Results for Sediment from River Beas (Maunsell 1997)

Table 8.5       Groundwater Quality Data for Wells in Long Valley

Table 8.6       Field Observation at Water Courses in Kun Tung and Chau Tau Area

Table 8.7       Water Quality in Watercourses and Unmanaged Ponds Alongside Lok Ma Chau Boundary Crossing (Binnie 1999)

Table 8.8       Sediment Quality in Unmanaged Ponds Alongside Lok Ma Chau Boundary Crossing (Binnie 1999)

Table 8.9       Water Quality in San Tin Channel (unpublished data, 2000)

Table 8.10     Water Quality Data for Shezhen River (high and low water levels) in Dry season of 1994 (ERM 1999)

Table 8.11     Sediment Quality Data for Shenzhen River (Shenzhen River Regulation Project, reported in ERM, 1999)

Table 8.12     Elutriate Test Results for Sediment form Shenzhen River (ERM 1999)

Table 8.13     Monitoring Results from Inner Deep Bay in Recent Years (EPD Marine 1996, 1997, 1998, 1999)

Table 8.14     Monitoring Results from Outer Zone of Deep Bay in Recent Years (EPD Marine 1996, 1997, 1998, 1999)

Table 8.15    Metal Concentrations in Sediment in EPD Monitoring Locations in Deep Bay (EPD Marine 1996, 1997, 1998, 1999)

Table 8.16     Summary of Construction Activities and Potential Impacts

Table 8.17     Summary of Mitigation Measures for Construction Impacts

Table 8.18     Summary of Type of Pollutants in Run-off from Railway Lines, their Potential Environmental Effects and Relative Significance in Spur Line Operation

Table 8.19     Daily Volume and Concentration of Sewage Generated at Lok Ma Chau Station

Table 8.20     Discharge Standards for Effluents Discharged into Group B Inland Waters

Table 8.21     Comparison of Removal Efficiency Between Surface Water Flow and Sub-surface Water Flow Reedbed Systems

Table 8.22     Comparison of requirements of Surface Water Flow and Sub-surface Water Flow Reedbed Systems

Table 8.23     Assumed BOD5 Concentrations in San Tin River for Reedbed Treatment Assessment

Table 8.24     A Possible Pumping Regime Scenario to Maintain HRT in Reduced Area Reedbed

Table 8.25     Summary of Major Projects Adjacent to the Spur Line

Table 8.26     Summary of Mitigation Measures for Construction Impacts

Table 9.1       Locations of Construction Activities and Amounts of Material to be Exported or Imported

Table 9.2       Summary of C&D Materials for the Spur Line Project

Table 9.3       Yearly Quantities of Surplus Inert C&D Materials

Table 9.4       Yearly Quantities of Fill Requirements

Table 9.5       Materials Quantities and Balance During Construction of Spur Line

Table 9.6       Construction Wastes Arising as a Result of Proposed Works

Table 9.7       Construction Waste Types and their Potential for Recycling or re-use

Table 9.8       Responsibilities for waste Collection, Recycling and Disposal during the Construction Phase

Table 9.9       Summary of Potential Waste Types and Disposal Options during Operational Phase

Table 10.1     Lot Numbers, Assigned Letters and Section

Table 10.2     Findings of Desktop Study and Site Visits and the likely Potential for Contamination

Table 10.3     Criteria for Adoption of Full-scale or Simplified Site Investigation

Table 10.4     Lots along the Spur Line and Potential Contaminating Landuses

Table 10.5     Activities found along the Spur Line and their likely Associated Contaminants

Table 10.6     Detection Limits of Parameters to be analyzed

Table 10.7     Preliminary Site Investigation Results

Table 10.8     Remediation techniques that could be at Sites along the Spur Line

Table 10.9     Main Activities at Each Site, Contaminants likely to be Present and Possible Maximum Extent of Contamination

Table 11.1     Summary of the Archaeological findings in each Evaluation Unit

Table 11.2     Summary of Potential Impacts on Identified Resources within the Alignment

Table 11.3     Distance, Orientation, Existing Landscapes between Villages and the Proposed Alignment

Table 11.4     Nature and Extent of Potential Impacts on Historical Villages and Mitigation Recommendations

Table 11.5     Distance, Orientation and Development between AMO Highlighted historical Buildings and the Proposed Alignment

Table 11.6     Potential Impacts and Mitigation Measures for the Building highlighted by AMO

Table 12.1     Existing Landscape Resources and Predicted Impacts

Table 12.2     Existing Landscape Character and landscape Impacts

Table 12.3     Review of Existing Planning and Development Control Framework

Table 12.4     Visually Sensitive Receivers and Visual Impacts

Table 12.5     Outline Implementation Programmes for Concurrent Projects

Table 12.6     Summary of the Major Committed Projects Adjacent to the Spur Line

Table 12.7     Provisional Programme for Landscape Works

Table 12.8     Implementation, Management and Maintenance of the Landscape Works

Table 12.9     Summary of Impacts on Existing Landscape Resources

Table 12.10   Summary of Impact on Landscape Character

Table 12.11   Summary of Impact on Existing and Future Landscape Planning Framework

Table 12.12   Summary of Impact on Visually Sensitive Receivers

Table 13.1     Construction Methods, Programme and Degree to which the Technology is Proven

Table 15.1     Air Quality Monitoring Stations

Table 15.2     Construction Noise Monitoring Stations

Table 15.3     Proposed Monitoring Locations for Water Quality during Construction of Spur Line

Table 15.4     Recommended Frequencies for Monitoring Water Quality

Table 15.5     ISO 14001 Certification of KCRC Departments

Table 15.6     Implementation Schedule

 

 

PLATES

 

4.1-4.3          Example of Habitat Types that will be Potentially Impacted by the Spur Line Project

10.1-10.29    Photographic Record of Potentially Contaminated Sites along Spur Line Alignment