TABLE OF CONTENTS

 

1          .INTRODUCTION

1.1       .BACKGROUND TO THE STUDY

1.2       .PURPOSE AND SCOPE OF THE EIA

1.3       .EIA STUDY AREA

1.4       .STRUCTURE OF THE REPORT

 

2          .DESCRIPTION OF THE PROJECT

2.1       .PROJECT DETAILS AND DESIGN CONSIDERATION

2.2       .NEED OF THE PROJECT

2.3       .CONTINUOUS PUBLIC INVOLVEMENT

2.4       .ALTERNATIVE CONSIDERATIONS (DRAINAGE OPTIONS AND ALIGNMENTS)

2.5       .PRELIMINARY DESIGN OF DRAINAGE IMPROVEMENT WORKS

2.6       .LANDSCAPE DESIGN

2.7       .CONSTRUCTION METHODS AND ENGINEERING REQUIREMENTS

2.8       .OPERATION OF THE PROJECTS

2.9       .WORKS PROGRAMME

2.10     .INTERACTION WITH OTHER PROJECTS

 

3          .AIR QUALITY IMPACT

3.1       .INTRODUCTION

3.2       .ENVIRONMENTAL LEGISLATION AND STANDARDS

3.3       .DESCRIPTION OF THE ENVIRONMENT

3.4       .AIR SENSITIVE RECEIVERS

3.5       .IDENTIFICATION OF ENVIRONMENTAL IMPACTS

3.6       .PREDICTION AND EVALUATION OF IMPACTS

3.7       .MITIGATION MEASURES

3.8       .RESIDUAL ENVIRONMENTAL IMPACT

3.9       .ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

 

4          .NOISE IMPACT

4.1       .INTRODUCTION

4.2       .ENVIRONMENTAL LEGISLATION AND STANDARDS

4.3       .DESCRIPTION OF THE ENVIRONMENT

4.4       .NOISE SENSITIVE RECEIVERS

4.5       .ASSESSMENT METHODOLOGY

4.6       .IDENTIFICATION OF ENVIRONMENTAL IMPACTS

4.7       .PREDICTION AND EVALUATION OF IMPACTS

4.8       .MITIGATION MEASURES

4.9       .RESIDUAL ENVIRONMENTAL IMPACT

4.10     .ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

 

5          .WATER QUALITY IMPACT

5.1       .INTRODUCTION

5.2       .ENVIRONMENTAL LEGISLATION AND STANDARDS

5.3       .BASELINE CONDITIONS

5.4       .WATER SENSITIVE RECEIVERS

5.5       .ASSESSMENT METHODOLOGY

5.6       .IDENTIFICATION AND EVALUATION OF ENVIRONMENTAL IMPACTS

5.7       .MITIGATION MEASURES

5.9       .RESIDUAL ENVIRONMENTAL IMPACT

5.10     .ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

 

6          .WASTE MANAGEMENT IMPLICATIONS

6.1       .INTRODUCTION

6.2       .ENVIRONMENTAL LEGISLATION AND STANDARDS

6.3       .ASSESSMENT METHODOLOGY

6.4       .IDENTIFICATION AND EVALUATION OF ENVIRONMENTAL IMPACTS

6.5       .MITIGATION MEASURES

6.6       .RESIDUAL ENVIRONMENTAL IMPACT

6.7       .ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

 

7          .ECOLOGICAL IMPACT

7.1       .INTRODUCTION

7.2       .ENVIRONMENTAL LEGISLATION AND STANDARDS

7.3       .ASSESSMENT METHODOLOGY

7.4       .BASELINE CONDITIONS

7.5       .ECOLOGICAL VALUE

7.6       .IDENTIFICATION OF ENVIRONMENTAL IMPACTS

7.7       .IMPACT EVALUATION

7.8       .MITIGATION OF ADVERSE ENVIRONMENTAL IMPACTS

7.9       .RESIDUAL ENVIRONMENTAL IMPACTS

7.10     .ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS

 

8          .CULTURAL HERITAGE IMPACT ASSESSMENT

8.1       .INTRODUCTION

8.2       .ENVIRONMENTAL LEGISLATION AND STANDARDS

8.3       .ASSESSMENT METHODOLOGY

8.4       .BASELINE CONDITIONS

8.5       .IDENTIFICATION AND EVALuation of Potential Impacts

8.6       .MITIGATION MEASURES

 

9          .ENVIRONMENTAL MONITORING AND AUDIT (EM&A) REQUIREMENTS

9.1       .INTRODUCTION

9.2       .AIR QUALITY IMPACT

9.3       .NOISE IMPACT

9.4       .WATER QUALITY IMPACT

9.5       .WASTE MANAGEMENT IMPLICATIONS

9.6       .ECOLOGICAL IMPACT

9.7       .CULTURAL HERITAGE

 

10        .CONCLUSION

10.1     .INTRODUCTION

10.2     .AIR QUALITY IMPACT

10.3     .NOISE IMPACT

10.4     .WATER QUALITY IMPACT

10.5     .WASTE MANAGEMENT IMPLICATIONS

10.6     .ECOLOGICAL IMPACT

10.7     .CULTURAL HERITAGE

10.8     .OVERALL CONCLUSION

11        .IMPLEMENTATION SCHEDULE OF THE PROPOSED MITIGATION MEASURES


 

 

List of Tables

 

 

Table 2.1          Summary of Existing Drainage Conditions in Mui Wo

Table 2.2          Summary of Key Continuous Public Involvement

Table 2.3          Summary of Key Comments/Recommendations from the Public

Table 2.4          Considerations of Various Drainage Options

Table 2.5          Summary of Project Elements

Table 2.6          Proposed Planting Species

Table 2.7          Summary of Construction Methods and Alternative Consideration

Table 2.8          Concurrent Projects

Table 3.1          Hong Kong Air Quality Objectives

Table 3.2          Representative Air Sensitive Receivers

Table 4.1          Construction Noise Criteria for Activity other than Percussive Piling

Table 4.2          Summary of Representative Noise Sensitive Receivers

Table 4.3          On-time Percentage Assumptions of PME

Table 4.4          Summary of Unmitigated Construction Noise Levels During Normal Daytime Working Hours

Table 4.5          Sound Power Levels for Quiet PME

Table 4.6          Movable Noise Barrier for Certain Items of PME

Table 4.7          Summary of Mitigated Construction Noise Levels During Normal Daytime Working Hours (Use of Quiet PME and Temporary/Movable Noise Barriers)

Table 5.1          Water Quality Objectives for Inland Waters

Table 5.2          Summary of Water Quality Monitoring Data for Tributaries of Mui Wo River in 2002

Table 6.1          Sediment Quality Classification Criteria

Table 6.2          Contaminant Levels of Riverbed Soil Samples and Their Categories

Table 6.3          Summary of C&D Material Volumes

Table 7.1          Avifaunal Species of Conservation Interest Previously Recorded From the Mui Wo Area*

Table 7.2a        Ecological Value of River Habitats in the Assessment Area.

Table 7.2b        Ecological Value of Secondary Woodland and Active Agriculture (Dry & Wet) Habitats in the Assessment Area.

Table 7.2c        Ecological Value of Inactive Agriculture (Dry & Wet) and Shrubland Habitats in the Assessment Area

Table 7.2d        Ecological Value of Fishpond and Plantation & Tree/Orchard Habitats in the Assessment Area

Table 7.2e        Ecological Value of Developed Land, Bare Ground & Wasteland Habitats in the Assessment Area

Table 7.3a        Evaluation of Floral Species of Conservation Interest Recorded Within Assessment Areas

Table 7.3b        Evaluation of Faunal Species of Conservation Interest Recorded Within Assessment Areas

Table 7.4          Habitats Directly Affected by Proposed Drainage Improvement Works*

Table 7.5          Habitats Temporarily Directly Affected by Proposed Drainage Improvement Works*

Table 7.6a        Overall Impact Evaluation to Pak Ngan Heung River.

Table 7.6b        Overall Impact Evaluation to Tai Tei Tong River.

Table 7.6c        Overall Impact Evaluation to Luk Tei Tong River.

Table 7.6d        Overall Impact Evaluation to Luk Tei Tong (2) River.

Table 7.6e        Overall Impact Evaluation of Secondary Woodland and Active Agriculture (Dry & Wet) Habitats.

Table 7.6f         Overall Impact Evaluation of Inactive Agriculture (Dry & Wet) and Shrubland Habitats

Table 7.6g        Overall Impact Evaluation of Fishpond and Plantation & Tree/Orchard Habitats

Table 7.6h        Overall Impact Evaluation of Developed Land, Bare Ground & Wasteland Habitats

Table 7.7          Overall Impact Evaluation to Species of Conservation Interest

Table 7.8          Evaluation of Residual Ecological Impact To Luk Tei Tong Marsh

Table 7.9          Monitoring White-shouldered Starlings: of Event and Action Plan

Table 8.1          Requirements for identified areas of archaeological potential

Table 8.2          Assessment of Potential Impacts to Recorded Resources

Table 9.1          Monitoring of White-shouldered Starlings: Event and Action Plan

Table 10.1        Summary of Key Environmental Outcomes/ Benefits

Table 11.1        Implementation Schedule for Construction Dust Control

Table 11.2        Implementation Schedule for Construction Noise Control

Table 11.3        Implementation Schedule for Water Quality Control

Table 11.4        Implementation Schedule for Waste Management Implications

Table 11.5        Implementation Schedule for Ecological Requirements

Table 11.6        Implementation Schedule for Cultural Heritage

 

List of Figures

 

Figure 1.1         .Location Plan of the Project

Figure 2.1         .General Layout Plan of Pak Ngan Heung River (1 , 2)

Figure 2.2a       .General Layout Plan of Luk Tei Tong River and Luk Tei Tong By-pass Channel (1, 2)

Figure 2.2b       .General Layout Plan of Tai Tei Tong River

Figure 2.3         .General Layout Plan ?Cross Sections (1, 2)

Figure 2.4         .Preliminary Landscape Plan for Pak Ngan Heung (1, 2)

Figure 2.5         .Preliminary Landscape Plan for Tai Tei Tong

Figure 2.6         .Preliminary Landscape Plan for Luk Tei Tong River and Luk Tei Tong By-pass Channel (1, 2)

Figure 2.7         .Photomontage ?Pak Ngan Heung River

Figure 2.8         .Photomontage ?Pak Ngan Heung River

Figure 2.9         .Photomontage ?Luk Tei Tong By-pass Channel

Figure 2.10       .Locations of Concurrent Projects (1, 2)

Figure 3.1         .Locations of Representative Air Sensitive Receivers (1, 2)

Figure 4.1         .Locations of Representative Noise Sensitive Receivers (1, 2)

Figure 4.2         .Locations of Proposed Temporary Noise Barriers (1, 2)

Figure 5.1         .Locations of EPD River Water Quality Monitoring Stations

Figure 5.2         .Schematic Design for Temporary Drainage Diversion

Figure 6.1         .Sediment Sampling Locations (1, 2)

Figure 7.1         .Habitat Map (1, 2)

Figure 7.2         .Proposed Compensatory Marsh Habitat within Luk Tei Tong Bypass Channel

Figure 7.3         .Conceptual Design of Fish-Ladder

Figure 8.1         .Map Showing the Investigated Areas (Area A to F) at Pak Ngan Heung River and Chung Hau Archaeological Site

Figure 8.2         .Location of the Yuen Compound at the Luk Tei Tong River

Figure 8.3         .Locations of the Recorded Resources at the Yuen Compound

Figure 8.4         .Location of the Luk Tei Tong Watchtower

 

Appendices

 

Appendix 2.1       .Photos of Flooding in Mui Wo Area

Appendix 2.2       .Preliminary Construction Programme

Appendix 4.1       .Powered Mechanical Equipment (PME) for Different Construction Tasks during Normal Working Hours ?Unmitigated Scenario

Appendix 4.2A     .Predicted Noise Levels at Representative NSRs During Various Construction Stages (Unmitigated)

Appendix 4.2       .Sample Calculation of Construction Noise Levels at Representative Noise Sensitive Receivers ?Unmitigated

Appendix 4.3       .Powered Mechanical Equipment (PME) for Different Construction Tasks during Normal Working Hours ?Mitigated Scenario (Use of Quiet PME)

Appendix 4.4       .Powered Mechanical Equipment (PME) for Different Construction Tasks during Normal Working Hours ?Mitigated Scenario (Use of Quiet PME and Movable Noise Barrier)

Appendix 4.5A     .Predicted Noise Levels at Representative NSRs During Various Construction Stages (Mitigated)Appendix 4.5       .Sample Calculation of Construction Noise Levels at Representative Noise Sensitive Receiver –Mitigated

Appendix 4.6       .Calculation of Cumulative Construction Noise Levels from Concurrent ProjectAppendix 7.1    .Representative Photographs of Habitats Recorded in the Assessment Areas

Appendix 7.2       .Photographs of Species of Conservation Interest Recorded from the Assessment Areas

Appendix 7.3       .Plant Species Recorded in the Assessment Areas

Appendix 7.4       .Fauna Recorded Within the Assessment Area

Appendix 7.5       .Nature Conservation Practice Note ? Clearing Mikania