Environmental Impact Assessment Report

Agreement No. CE 16/99
Feasibility Study for Housing Development at
Whitehead and Lee On in Ma On Shan, Sha Tin

Environmental Impact Assessment Final Report

Contents

1. INTRODUCTION
2. PROJECT DESCRIPTION
3. NOISE IMPACT ASSESSMENT
4. AIR QUALITY IMPACT ASSESSMENT
5. WATER QUALITY
6. ECOLOGICAL IMPACT ASSESSMENT
7. CULTURAL HERITAGE ASSESSMENT
8. LANDSCAPE AND VISUAL IMPACT
9. SUMMARY AND CONCLUSION AND IMPLEMENTATION SCHEDULE

LIST OF ANNEXES
	Annex A Environmental Impact Assessment Study Brief

	Annex B Environmental Legislation and Planning Guidelines

	Annex C Noise Impact Assessment
	C1 Details of Construction Noise Impact Assessment
	C2 Details of Traffic Noise Impact Assessment
	C3 Train Noise Impact Assessment
	C4 Details of Fixed Noise Impact Assessment

	Annex D Air Quality Impact Assessment
	D1 Traffic Emission Assessment
	D2 Industrial Emission Assessment

	Annex E Sewage Impact Assessment

	Annex F Ecology
	F1 Plant Species Recorded within the Assessment Area
	F2 Plant Species Recorded at Wu Kai Sha fung shui Wood (Chu 1998)
	F3 Bird Species and Abundance on Roadside Plantations
	F4 Bird Species and Abundance on Headland Plantations
	F5 Bird Species and Abundance on Secondary Woodlands
	F6 Bird Species and Abundance in fung shui Woods
	F7 Bird Species and Abundance of Agriculture
	F8 Bird Species and Abundance on Sandy Shores
	F9 Bird Species and Abundance in outer Starfish Bay
	F10 Bird Species and Abundance Recorded in September 2001
	F11 Butterfly Species Recorded in the Study Area
	F12 Dragonfly Species Recorded in the Study Area

	Annex G Cultural Heritage
	G1 Results of the Auger Survey
	G2 Test Pit Results

	Annex H Section at Interface between Trunk Road T7 and Property Development at Wu Kai Sha Station

TABLES
	2.1 Preliminary Development Parameters from the Study Brief
	2.2 Schedule of Development for the Base Scheme
	2.3 Development Schedule of the Alternative Scheme
	2.4 Development Schedule of the Further Alternative Scheme with 10 hectares Recreational Area
	2.5 Development Schedule of the Further Alternative Scheme with 15 hectares Recreational Area
	2.6 Development Schedule of the Further Alternative Scheme with 18.5 hectares Recreational Area
	2.7 Development Schedule for the Preliminary Preferred Development Option with 11-ha Recreation Development (plot ratio 6.5)
	2.8 G/IC Facilities and Open Space Requirements for the PDO with 11-ha Recreation Development
	2.9 Estimated Land Area, Facilities Sizes and Annual Attendance of the Proposed Recreation Uses
	2.10 Actual Patronage of the Proposed Recreation Uses
	2.11 Development Schedule for the Preferred Development Option with 11-ha Recreation Development (plot ratio 5)
	2.12 Works to be Implemented by government for Preferred Development Option
	2.13 Development Programme
	2.14 Designated Projects under this Study
	2.15 Concurrent Projects

	3.3.1 TMEIA Daytime Construction Noise Standards
	3.3.2 Operational Noise Assessment Criteria
	3.4.1 Details of the Representative NSRs during Construction Phase
	3.4.2 Details of the Representative NSRs during Operational Phase
	3.5.1 Worst Case Construction Scenarios
	3.5.2 Predicted (Unmitigated) Construction Noise Level
	3.5.3 Predicted (Mitigated) Construction Noise Level
	3.5.4 Summary of Proposed Construction Noise Mitigation Measures
	3.6.1 Characteristics of Roads
	3.6.2 Assumptions on Potential Noise Shielding Structures of the Preliminary Preferred Development Option
	3.6.3 Summary of Traffic Noise Assessment on the future NSRs in the Preliminary Preferred Development Option
	3.6.4 Summary of Traffic Mitigation Incorporated into the Preliminary Preferred Development Option (School)
	3.6.5 Evaluation of constraints associated with the Wu Kai Sha Station Development in accordance with Annex 13 of TM-EIAO
	3.6.6 Summary of Proposed Noise Mitigation Measures / Assumptions Used in the Proposed Development in Relation to Traffic Noise
	3.7.1 Acceptable Noise Levels (ANLs) in dB(A)
	3.7.2 Information of the Selected NSRs for the Assessment
	3.7.3 Parameters and Equations adopted in the MOS Rail Noise Calculation
	3.7.4 Unmitigated Rail Noise Levels
	3.7.5 Mitigated Noise Levels at NSR 10-1
	3.7.6 Summary of the Mitigation Measures for MOS Train Noise
	3.8.1 Categories of Fixed Noise Assessment
	3.8.2 Monitoring Results of Pumping Station
	3.8.3 Predicted Noise Levels generated from the Pumping Station at Ground Levels of NSR 10
	3.8.4 Maximum Allowable Sound Pressure Level for Fixed Noise Sources Associated with MOS Rail Wu Kai Sha Station
	3.8.5 Maximum Allowable Sound Pressure Level for Fixed Noise Sources Associated with the proposed Utility Services

	4.1 Hong Kong Air Quality Objectives (AQOs)
	4.2 Monthly Average Concentrations at Shatin EPA Station (2000)
	4.3 Representative ASRs around the Project during Construction Phase
	4.4 Movement of Cut and Fill Material within Project
	4.5 Air Quality Guidelines of Carparks

	5.1 Water Quality of EPD Monitoring Station (TM6) from 1995 to 1999
	5.2 Water Quality of EPD Monitoring Station TS4 from 1995 to 1999
	5.3 Summary of Potential Construction Impacts and Mitigation Measures
	5.4 Estimated Sewage Flows
	5.5 E.Coli and Faecal Coliform Levels at EPS Monitoring Station TM6
	5.6 Summary of Potential Operational Impacts and Mitigation Measures

	6.1 Bird Abundance and Species Richness in 2000 and 2001
	6.2 Bird Abundance and Species Richness in Each Type of Habitat
	6.3 Species Richness of Butterfly in Each Type of Habitat
	6.4 Intertidal Fauna on the Sandflat in Starfish Bay
	6.5 Seabed Attributes along the Survey Transects
	6.6 Description of the Seabed Recorded along each Transect
	6.7 Plant Species of Conservation Importance
	6.8 Bird Species of Conservation Importance
	6.9 Marine Species of Conservation Importance
	6.10 Evaluation of Ecological Importance of the Study Area
	6.11 Estimated Habitat Loss Caused by Proposed Housing Development
	6.12 Construction-stage Impacts
	6.13 Operation-stage Impacts

	7.5.1 Summary of the Archaeological Findings in Each Unit of Evaluation
	7.8.1 Summary of Field Evaluation Conducted in Each Unit and its Results (AH = Auger Holes, TP = Test Pit)
	7.8.2 Summary of Proposed Impacts in Areas of Archaeological Potential
	7.8.3 Summary of Proposed Mitigation Recommendations in Areas of Archaeological Potential
	7.9.1 The Recorded Resources within the Study Area, the Assessment, Existing Land Use in their Immediate Vicinity and the Type and Distance of the Proposed Development
	7.9.2 The Recorded Resources Outside of the Study Area, the Assessment, Existing Land Use in their Immediate Vicinity and the Type and Distance of the Proposed Development
	7.9.3 Mitigation Recommendations for the Recorded Resources inside the Study Area
	7.9.4 Mitigation Recommendations for the Recorded Resources outside the Study Area

	8.3.1 Relationship between Receptor Sensitivity and Impact Magnitude in Defining Impact Significance
	8.5.1 Landscape Resources and Character Areas
	8.5.2 Characteristics of Key Views
	8.5.3 Identity and Characteristics of the Key Visual Receivers
	8.6.1 Significance of Landscape Impacts during the Construction Phase
	8.6.2 Significance of Visual Impacts during the Construction Phase
	8.6.3 Proposed Construction Phase Mitigation Measures
	8.7.1 Significance of Landscape Impacts during the Operational Phase
	8.7.2 Significance of Visual Impacts during the Operational Phase
	8.7.3 Proposed Permanent Mitigation Measures
	8.9.1 Quantification Key Landscape Resources Affected by Works

	9.1 Quantification Key Landscape Resources Affected by Works
	9.2 Description of Column Headings for the Implementation Schedule
	9.3 Implementation Schedule for Recommended Mitigation Measures

FIGURES
	Figure 1.1 Location of Study Area

	Figure 2.1 Master Layout Plan (Base Scheme)
	Figure 2.2 Master Layout Plan (Alternative Scheme)
	Figure 2.3 Master Layout Plan (Preliminary Preferred Development Option)
	Figure 2.4 Master Layout Plan (Preferred Development Option)
	Figure 2.5 Conceptual Layout of Highway Structures
	Figure 2.6 Extend of Designated Projects within Study Area

	Figure 3.4.1 Location of Construction Noise Sensitive Receivers
	Figure 3.4.2 Location of Operational Noise Sensitive Receivers
	Figure 3.8.1 Locations of Potential Fixed-Noise Sources
	Figure 3.6.1 Locations of new roads
	Figure 3.6.2 Locations of Committed Noise Barrier by Other Projects
	Figure 3.7.1a Mitigation Measures Proposed on MOS Rail Viaduct next to Lee On Estate by MOS EIA
	Figure 3.7.1b Deck General Arrangement
	Figure 3.7.1c Cross Section
	Figure 3.7.1d Key Plan - Concourse Level
	Figure 3.7.1e Shek Mun to Lee On Station - Longitudinal Section A-A
	Figure 3.7.1f Cross Section B-B, C-C, D-D, E-E, F-F, G-G & H-H
	Figure 3.7.2a Proposal Railway Noise Measure (Semi Enclosure)
	Figure 3.7.2b Proposal Railway Noise Measure (Central Plenum)
	Figure 3.7.3 Multi-Plenum System on the Rail Viaduct

	Figure 4.1 Wind Rose of Shatin Area
	Figure 4.2 Location of Proposed Wheel Wash
	Figure 4.3 Maximum NO2 concentration from Traffic Emission at Pedestrian Level (Hourly Average)
	Figure 4.4 Maximum NO2 concentration from Traffic Emission at Pedestrian Level (Daily Average)
	Figure 4.5 Maximum RSP concentration from Traffic Emission at Pedestrian Level (Daily Average)
	Figure 4.6 Location of Chimneys
	Figure 4.7a Maximum NO2 concentration from Industrial Emission (Hourly Average)
	Figure 4.7b Maximum NO2 concentration from Industrial Emission at 10 Floor (Hourly Average)
	Figure 4.7c Maximum NO2 concentration from Industrial Emission at 20 Floor (Hourly Average)
	Figure 4.7d Maximum NO2 concentration from Industrial Emission at 30 Floor (Hourly Average)
	Figure 4.7e Maximum NO2 concentration from Industrial Emission at 40 Floor (Hourly Average)
	Figure 4.8a Maximum NO2 concentration from Industrial Emission (Daily Average)
	Figure 4.8b Maximum NO2 concentration from Industrial Emission at 10 Floor (Daily Average)
	Figure 4.8c Maximum NO2 concentration from Industrial Emission at 20 Floor (Daily Average)
	Figure 4.8d Maximum NO2 concentration from Industrial Emission at 30 Floor (Daily Average)
	Figure 4.8e Maximum NO2 concentration from Industrial Emission at 40 Floor (Daily Average)
	Figure 4.9a Maximum SO2 concentration from Industrial Emission (Hourly Average)
	Figure 4.9b Maximum SO2 concentration from Industrial Emission at 10 Floor (Hourly Average)
	Figure 4.9c Maximum SO2 concentration from Industrial Emission at 20 Floor (Hourly Average)
	Figure 4.9d Maximum SO2 concentration from Industrial Emission at 30 Floor (Hourly Average)
	Figure 4.9e Maximum SO2 concentration from Industrial Emission at 40 Floor (Hourly Average)
	Figure 4.10 Cumulative NO2 concentration from Traffic Emission and Industrial Emission at Pedestrian Level (Hourly Average)
	Figure 4.11 Cumulative NO2 concentration from Traffic Emission and Industrial Emission at Pedestrian Level (Daily Average)

	Figure 5.1 Existing Streamcourses and Sensitive Receivers
	Figure 5.2 Location of EPD Monitoring Station
	Figure 5.3a Conceptual Drainage Plan
	Figure 5.3b Conceptual Sewerage Plan

	Figure 6.1 Habitat map and sampling locations of the Study Area
	Figure 6.2 Photomontages showing various habitats at Whitehead and Lee On, Ma On Shan
	Figure 6.3 Locations of species with conservation value within the Study Area
	Figure 6.4 Photo of black coral Antipathes sp. in the control site during the dive survey
	Figure 6.5 Extension of existing secondary woodland as a mitigation measure to loss of woodland

	Figure 7.1 Map Showing the Location of the Study Area in the Territory
	Figure 7.2 Map of the Study Area
	Figure 7.3a View of the Former Whitehead Detention Centre Site from the Northeast
	Figure 7.3b View of the Wu Kai Sha Headland (east) with Tai Po Hoi in the Foreground taken from the South
	Figure 7.4a View of the Study Area from the South East Looking across the Central Area of Fill towards Lok Wo Sha and Ma On Shan Town
	Figure 7.4b View towards the South West showing the Nursey (Unit 3) in Foreground; Central Fill Area in Use for Vehicle Storage, Lok Wo Sha and the Fung Shui Wood in the Background
	Figure 7.5a View of Unit 7 from the North East showing the Former Lagoon Area under Cultivation and the Sandbar (Unit 6) beyond
	Figure 7.5b View of To Tau Tsuen from the Southeast
	Figure 7.6 Aerial Photograph of the Study Area taken in 1978
	Figure 7.7 Aerial Photograph of the Study Area taken in 1995
	Figure 7.8 Aerial Photograph of the Study Area taken in 1999
	Figure 7.9 Map Showing the Location of the Wu Kai Sha Archaeological Site
	Figure 7.10a Photograph showing Surface Material of Unit 3
	Figure 7.10b Photograph showing Unit 4
	Figure 7.11a Photograph showing Unit 6
	Figure 7.11b Photograph showing Surface Material of Unit 7
	Figure 7.12 Map of Unit 1 Showing Location of Auger Holes
	Figure 7.13 Map of Unit 3 Showing Location of Auger Holes
	Figure 7.14 Map of Unit 4 Showing Location of Auger Holes
	Figure 7.15 Map of Unit 5 Showing Location of Auger Holes
	Figure 7.16 Map of Unit 6 Showing Location of Auger Holes and Test Pits
	Figure 7.17 Map of Unit 7 Showing Location of Auger Holes and Test Pit
	Figure 7.18a Photograph showing Finds form Test Pit 1: (L-R) Context 03, Context 04, Context 05, Context 05
	Figure 7.18b Photograph showing 2 Bronze Buttons (SF#1) from Test Pit 1: Context 05
	Figure 7.18c Photograph showing finds from Test Pit 2: (L-R) Context 02, Context 03, Context 04
	Figure 7.19a Photograph showing a Rectangular unmodified adze (SF#2) contained in the sand bar (Test Pit 3, Context 04)
	Figure 7.19b Photograph showing finds of Test Pit 3 (L-R): Context 02, Context 04 (SF#2)
	Figure 7.20 Illustrations of Special Find #2, Adze, from Test Pit 3, Unit 6
	Figure 7.21a Photograph showing finds of Test Pit 4: Context 5
	Figure 7.21b Photograph showing finds of Test Pit 5 (L-R): Context 02, Context 05
	Figure 7.22 Illustration of Feature Sherds recovered from Test Pit 4, Unit 6
	Figure 7.23a Photograph showing finds of Test Pit 5: Context 03
	Figure 7.23b Photograph showing finds of Test Pit 5: Context 04
	Figure 7.24 Map showing the Locations of the Villages in and Bordering the Study Area
	Figure 7.25 Map Showing the Locations of the Cultural Heritage Features in the Villages of Wu Kai Sha San Tsuen, Wu Kai Sha Cheung Tsuen and Kwai Po Lau
	Figure 7.26 Map Showing the Locations of the Cultural Heritage Features in the Village of Lok Wo Sha
	Figure 7.27 Map Showing the Location of the Cultural Heritage Feature in the Village of Cheung Kang
	Figure 7.28 Map Showing the Location of the Cultural Heritage Feature in the Village of To Tau Tsuen
	Figure 7.29 Map Showing the Location of 1950s features in To Tau Tsuen
	Figure 7.30 Photographs Illustrating the Traditional Lifestyle of the Tanka People at To Tau Tsuen
	Figure 7.31 Photographs showing 1950s Structure (1-3) in To Tau Tsuen
	Figure 7.32 Photographs showing 1950s Structure (4-6) in To Tau Tsuen
	Figure 7.33 Photographs showing 1950s Structure (7-9) in To Tau Tsuen
	Figure 7.34 Photographs showing 1950s Structure (10-12) in To Tau Tsuen
	Figure 7.35 Photographs showing 1950s Structure (13-15) in To Tau Tsuen
	Figure 7.36 Photographs showing 1950s Structure (16-18) in To Tau Tsuen
	Figure 7.37 Photographs showing 1950s Structure (19-20) in To Tau Tsuen
	Figure 7.38 Map showing the Site of the Former Whitehead Detention Centre
	Figure 7.39 Map showing the Location of the Grave Group on the Fung Shui Hill
	Figure 7.40 Map showing the Locations of Burial Associated Sites, Traditionally Cultivated Areas and Fung Shui Features
	Figure 7.41 Photographs of Permanent Graves B and D and the Cemetery Site on the Fung Shui Hill
	Figure 7.42 Photograph of an Urn Repository and a Coffin Slot
	Figure 7.43 Photograph of Permanent Graves A and C
	Figure 7.44 Inscription of Grave A and C
	Figure 7.45 Proposed Boundary of Pre-historical Archaeological Site
	Figure 7.46 Recommended Area requiring Archaeological Field Evaluation

	Figure 8.1 Landscape Planning Designations
	Figure 8.2 Location of Landscape Resources
	Figure 8.3 Landscape Resources
	Figure 8.4 Landscape Character Areas
	Figure 8.5 Views of Landscape Character Areas
	Figure 8.6 Views of Landscape Character Areas
	Figure 8.7 Potential Visual Envelope
	Figure 8.8 Location of Key Views
	Figure 8.9 Key Views (No.1 and 2)
	Figure 8.10 Key Views (No.3 and 4)
	Figure 8.11 Key Views (No.5 and 6)
	Figure 8.12 Visually Receivers
	Figure 8.13a Landscape Impacts - During Construction
	Figure 8.13b Landscape Impacts - During Operation (Day 1)
	Figure 8.13c Landscape Impacts - Residual Impact (Year 10)
	Figure 8.13d Significance of Impacts on Landscape Character - Construction
	Figure 8.13e Significance of Impacts on Landscape Character - Day 1 of Operation
	Figure 8.13f Significance of Impacts on Landscape Character - Day 10 of Operation
	Figure 8.14a Visual Impacts - During Construction
	Figure 8.14b Visual Impacts - During Operation (Day 1)
	Figure 8.14c Visual Impacts - Residual Impact (Year 10)
	Figure 8.15a Photomontage from View Point 1 - Existing
	Figure 8.15b Photomontage from View Point 1 - During Construction
	Figure 8.15c Photomontage from View Point 1 - During Operation (Day 1)
	Figure 8.15d Photomontage from View Point 1 - Residual Impact (Year 10)
	Figure 8.16a Photomontage from View Point 2 - Existing
	Figure 8.16b Photomontage from View Point 2 - During Construction
	Figure 8.16c Photomontage from View Point 2 - During Operation (Day 1)
	Figure 8.16d Photomontage from View Point 2 - Residual Impact (Year 10)
	Figure 8.17a Photomontage from View Point 3 - Existing
	Figure 8.17b Photomontage from View Point 3 - During Construction
	Figure 8.17c Photomontage from View Point 3 - During Operation (Day 1)
	Figure 8.17d Photomontage from View Point 3 - Residual Impact (Year 10)
	Figure 8.18a Photomontage from View Point 4 - Existing
	Figure 8.18b Photomontage from View Point 4 - During Construction
	Figure 8.18c Photomontage from View Point 4 - During Operation (Day 1)
	Figure 8.18d Photomontage from View Point 4 - Residual Impact (Year 10)
	Figure 8.19a Photomontage from View Point 5 - Existing
	Figure 8.19b Photomontage from View Point 5 - During Construction
	Figure 8.19c Photomontage from View Point 5 - During Operation (Day 1)
	Figure 8.19d Photomontage from View Point 5 - Residual Impact (Year 10)
	Figure 8.20a Photomontage from View Point 6 - Existing
	Figure 8.20b Photomontage from View Point 6 - During Construction, Operation (Day 1), Residual Impact (Year 10)
	Figure 8.20b1 Photomontage from View Point 6 - During Construction, Operation (Day 1), Residual Impact (Year 10) (Plot Ratio = 5.0)
	Figure 8.21 Landscape Mitigation Measure Plan during Construction Phase
	Figure 8.22 Landscape Mitigation Measure Plan during Operational Phase

Back to TOC