Expansion of Hong Kong International Airport into a Three-Runway System

Construction Phase Quarterly EM&A Report No.34 (1 April to 30 June 2024)

August 2024

 


 

 

 

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Contents

Abbreviations

Executive summary

1       Introduction

1.1      Background

1.2      Scope of this Report

1.3      Project Organisation

1.4      Contact information for the Project

1.5      Summary of Construction Works

1.6      Summary of EM&A Programme Requirements

2       Environmental Monitoring and Auditing

2.1      Air Quality Monitoring

2.1.1         Action and Limit Levels

2.1.2         Summary of Monitoring Results

2.1.3         Conclusion

2.2      Noise Monitoring

2.2.1         Action and Limit Levels

2.2.2         Summary of Monitoring Results

2.2.3         Conclusion

2.3      Water Quality Monitoring

2.4      Waste Monitoring

2.4.1         Action and Limit Levels

2.4.2         Summary of Monitoring Results

2.4.3         Marine Sediment Management

2.5      Chinese White Dolphin Monitoring

2.5.1         Summary of Monitoring Results

2.6      Environmental Site Inspection

2.6.1         Landscape and Visual Mitigation Measures

2.6.2         Land Contamination Assessment

2.7      Audit of SkyPier High Speed Ferries

2.8      Audit of Construction and Associated Vessels

2.9      Review of the Key Assumptions Adopted in the EIA Report

3       Report on Non-compliance, Complaints, Notifications of Summons and Prosecutions

3.1      Compliance with Other Statutory Environmental Requirements

3.2      Analysis and Interpretation of Complaints, Notification of Summons and Status of Prosecutions

3.2.1         Complaints

3.2.2         Notifications of Summons or Status of Prosecution

3.3      Cumulative Statistics

4       Conclusion and Recommendation

 

Tables  

Table 1.1: Contact Information of Key Personnel

Table 1.2: Contact Information of the Project

Table 1.3: Summary of Status for All Environmental Aspects under the Updated EM&A Manual

Table 2.1: Impact Air Quality Monitoring Stations 

Table 2.2: Percentage of Air Quality Monitoring Results within Action and Limit Levels 

Table 2.3: General Meteorological Condition during Impact Air Quality Monitoring 

Table 2.4: Impact Noise Monitoring Stations 

Table 2.5: Percentage of Noise Monitoring Results within Action and Limit Levels 

Table 2.6: General Meteorological Condition during Impact Noise Monitoring 

Table 2.7: Action and Limit Levels for Construction Waste 

Table 2.8: Construction Waste Statistics 

Table 2.9: Summary of Number of CWD Sightings and Number of Dolphins for the Same Quarter Last Year, Previous Quarter, and Current Reporting Period 

Table 2.10: Summary of Photo Identification 

Table 2.11: Landscape and Visual – Construction Phase Audit Summary 

Table 2.12: Summary of the Number of Retained, Transplanted and To-be-transplanted Trees in the Reporting Period 

Table 2.13: Summary of the Tree Status Updated in the Reporting Period 

Table 2.14: Summary of the Transplanted Trees Updated in the Reporting Period 

Table 3.1: Summary of Environmental Complaints 

Table 3.2: Statistics for Valid Exceedances for the Environmental Monitoring 

Table 3.3: Statistics for Non-compliance, Complaints, Notifications of Summons and Prosecution 

 

Figures

Figure 1.1

Locations of Key Construction Activities

Figure 2.1

Locations of Air and Noise Monitoring Stations and Chek Lap Kok Wind Station

Figure 2.2

Vessel based Dolphin Monitoring Transects in Construction, Post-Construction, and Operation Phases

Figure 2.3

Sightings Distribution of Chinese White Dolphins

Figure 2.4

Sighting Locations of Chinese White Dolphins with Different Group Sizes

Figure 2.5

Sighting Locations of Chinese White Dolphins Engaged in Different Behaviours

Figure 2.6

Sighting Locations of Mother-calf Pairs

 

Appendices

Appendix A

Project Organisation Chart

Appendix B

Environmental Mitigation Implementation Schedule (EMIS) for Construction Phase

Appendix C

Monitoring Results

 

 

Abbreviations

3RS

Three-Runway System

AAHK

Airport Authority Hong Kong

AECOM

AECOM Asia Company Limited

AFCD

Agriculture, Fisheries and Conservation Department

AIS

Automatic Information System

ANI

Encounter Rate of Number of Dolphins

APM

Automated People Mover

AW

Airport West

BHS

Baggage Handling System

C&D

Construction and Demolition

CAP

Contamination Assessment Plan

CAR

Contamination Assessment Report

CTCC

Construction Traffic Control Centre

CWD

Chinese White Dolphin

DCM

Deep Cement Mixing

DEZ

Dolphin Exclusion Zone

DO

Dissolved Oxygen

EIA

Environmental Impact Assessment

EM&A

Environmental Monitoring & Audit

EMIS

Environmental Mitigation Implementation Schedule

EP

Environmental Permit

EPD

Environmental Protection Department

EPSS

Emergency Power Supply Systems

ET

Environmental Team

FCZ

Fish Culture Zone

HKBCF

Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities

HKIA

Hong Kong International Airport

HSF

High Speed Ferry

IEC

Independent Environmental Checker

I-2RS

Interim Two Runway System

LKC

Lung Kwu Chau

MMHK

Mott MacDonald Hong Kong Limited

MMWP

Marine Mammal Watching Plan

MSS

Maritime Surveillance System

MTRMP-CAV

Updated Marine Travel Routes and Management Plan for Construction and Associated Vessel

NEL

Northeast Lantau

NWL

Northwest Lantau

PAM

Passive Acoustic Monitoring

SC

Sha Chau

SCZ

Speed Control Zone

SCLKCMP

Sha Chau and Lung Kwu Chau Marine Park

SS

Suspended Solids

STG

Encounter Rate of Number of Dolphin Sightings

SWL

Southwest Lantau

T2

Terminal 2

The Manual

The Updated EM&A Manual

The Project

The Expansion of Hong Kong International Airport into a Three-Runway System

The SkyPier Plan

Marine Travel Routes and Management Plan for High Speed Ferries of SkyPier

TSP

Total Suspended Particulates

WL

West Lantau

WMP

Waste Management Plan

 


Executive summary

The “Expansion of Hong Kong International Airport into a Three-Runway System” (the Project) serves to meet the future air traffic demands at Hong Kong International Airport (HKIA). On 7 November 2014, the Environmental Impact Assessment (EIA) Report (Register No.: AEIAR-185/2014) for the Project was approved and an Environmental Permit (EP) (Permit No.: EP-489/2014) was issued for the construction and operation of the Project.

Airport Authority Hong Kong (AAHK) commissioned Mott MacDonald Hong Kong Limited (MMHK) to undertake the role of Environmental Team (ET) for carrying out the Environmental Monitoring & Audit (EM&A) works during the construction phase of the Project in accordance with the Updated EM&A Manual (the Manual).

This is the 34th Construction Phase Quarterly EM&A Report for the Project which summarises the monitoring results and audit findings of the EM&A programme during the reporting period from 1 April 2024 to 30 June 2024.

During the reporting period, the project is in the Interim Two Runway System (I-2RS) stage, in which the new North Runway and the associated taxiway and facilities were operated together with the South Runway and existing airport facilities, with the Centre Runway closed down for modification works.

Key Activities in the Reporting Period

The key activities of the Project carried out in the reporting period are located in reclamation areas and existing airport island respectively. Works in the reclamation areas included drainage works, land improvement works and filling works, pavement works, superstructure works for Terminal 2 Concourse, tunnel work for Automated People Mover (APM) and Baggage Handling System (BHS) and associated works. Land-based works on existing airport island involved Terminal 2 (T2) expansion works, modification and tunnel work for APM and BHS, utilities works, road and drainage works,  excavation works and 132kV cable laying works.

EM&A Activities Conducted in the Reporting Period

The EM&A programme was undertaken in accordance with the Manual of the Project. Summary of the monitoring activities during this reporting period is presented as below:

Monitoring Activities

Number of Sessions

1-hour Total Suspended Particulates (TSP) air quality monitoring

96

Noise monitoring

52

Vessel line-transect surveys for Post-construction phase Chinese White Dolphin (CWD) monitoring

6

Environmental auditing works, including weekly site inspections of construction works conducted by the ET and bi-weekly site inspections conducted by the Independent Environmental Checker (IEC), audit of SkyPier High Speed Ferries (HSF), and audit of construction and associated vessels, were conducted in the reporting period. Based on the information including ET’s observations, records of Maritime Surveillance System (MSS), and contractors’ site records, it is noted that environmental pollution control and mitigation measures were properly implemented and construction activities of the Project in the reporting period did not introduce adverse impacts to the sensitive receivers.

A post-construction phase CWD monitoring by vessel line transect survey was conducted following the same methodology as adopted in construction phase monitoring.

Snapshots of Good Environmental Practices in the Reporting Period

Metal recycling by contractor

Erection of acoustic barrier

Provision of environmental training for site personnel by contractor

Key examples of good site practices implemented in the Project are highlighted as below:

1.     Metals including iron and steel generated were segregated to improve material reuse and recycling by contractor.

2.     Erection of acoustic barrier around the breaker part of excavator mounted breaker to enhance the noise mitigation measures.

3.     Environmental training was provided by contractor to site personnel for proper waste management and chemical waste handling procedures.

Summary Findings of the EM&A Programme

The monitoring works for construction dust, construction noise, construction waste, landscape & visual, and post-construction phase CWD monitoring were conducted during the reporting period in accordance with the Manual.

Monitoring results of construction dust, construction noise, and construction waste did not trigger the corresponding Action and Limit Levels in the reporting period. No non-conformity was recorded for landscape & visual monitoring in the reporting period.

The key findings of the EM&A programme during the reporting period are summarised as below:

 

Yes

No

Details

Analysis / Recommendation / Remedial Actions

Breach of Limit Level^

 

No breach of Limit Level was recorded.

Nil

Breach of Action Level^

 

No breach of Action Level was recorded.

Nil

Complaint received in previous reporting period

 

In the previous reporting period, a complaint regarding construction dust at Airport North Interchange and South Perimeter Road was received on 15 March 2024.

ET requested the relevant contractors to provide information regarding the complaint and replies indicated dust suppression measures were in place. During the ET’s site inspections, no dust related items were recorded. Nevertheless, the relevant contractors were reminded to continuously implement dust mitigation measures at their vehicular site exits and works areas adjacent to public roads. Hence, the case was considered closed.

In the previous reporting period, a complaint regarding noise issue at Cheong Tat Road was received on 15 March 2024.

ET requested the relevant contractor to provide information regarding the complaint and reply indicated noise control measures were implemented. During the ET’s site inspections, no noise nuisance issue was recorded. Nevertheless, the relevant contractor was reminded to continuously implement their current and enhanced noise mitigation measures. Hence, the case was considered closed.

Complaint received in this reporting period

 

A complaint regarding dust nuisance was received on 21 May 2024.

ET requested the relevant contractor to provide information regarding the complaint and reply indicated dust suppression measures were in place. During the ET’s site inspections, no dust related items were recorded. Nevertheless, the relevant contractor was reminded to continuously implement dust mitigation measures at the concerned haul roads. Hence, the case was considered closed.

Two complaints regarding light nuisance were received on 23 May 2024.

ET requested the relevant contractor to provide information regarding the complaints and reply indicated the concerned contractor immediately adjusted lighting angles of spotlights and conducted refresher training with frontline workers on the use of lighting at the concerned area. During the ET’s site inspections, the observed lighting nuisance was minimised. Nevertheless, the relevant contractor was reminded to keep review and ensure no light nuisance. Hence, the cases were considered closed.

Notification of any summons and status of prosecutions

 

No notification of summons nor prosecution was received.

Nil

Changes that affect the EM&A

 

There was no change to the construction works that may affect the EM&A.

Nil

Remarks:

^Only triggering of Action or Limit Level found related to Project works is counted as Breach of Action or Limit Level.

In accordance with Condition 2.6 of EP, AAHK has assisted Agriculture, Fisheries and Conservation Department (AFCD) in taking forward the statutory procedures for the designation of the North Lantau Marine Park (NLMP). A gazette notice regarding the approved map was published by the Government on 29 September 2023 with a Draft Designation Order and a relevant Executive Council paper was prepared. The NLMP will come into effect on 1 November 2024 and shall tie in with the commissioning of the 3RS.

1        Introduction

1.1        Background

On 7 November 2014, the Environmental Impact Assessment (EIA) Report (Register No.: AEIAR-185/2014) for the “Expansion of Hong Kong International Airport into a Three-Runway System” (the Project) was approved and an Environmental Permit (EP) (Permit No.: EP-489/2014) was issued for the construction and operation of the Project.

Airport Authority Hong Kong (AAHK) commissioned Mott MacDonald Hong Kong Limited (MMHK) to undertake the role of Environmental Team (ET) for carrying out the Environmental Monitoring & Audit (EM&A) works during the construction phase of the Project in accordance with the Updated EM&A Manual (the Manual) submitted under EP Condition 3.1[1]. AECOM Asia Company Limited (AECOM) was employed by AAHK as the Independent Environmental Checker (IEC) for the Project.

The Project covers the expansion of the existing airport into a three-runway system (3RS) with key project components comprising land formation of about 650 ha and all associated facilities and infrastructure including taxiways, aprons, aircraft stands, a passenger concourse, an expanded Terminal 2, all related airside and landside works and associated ancillary and supporting facilities. The submarine aviation fuel pipelines and submarine power cables also require diversion as part of the works.

Construction of the Project is to proceed in the general order of diversion of the submarine aviation fuel pipelines, diversion of the submarine power cables, land formation, and construction of infrastructure, followed by construction of superstructures.

The summary of construction works programme can be referred to the corresponding Monthly EM&A Reports. Description of relevant contracts in the reporting period was presented in Appendix A of the Construction Phase Monthly EM&A Report No. 94.

1.2        Scope of this Report

This is the 34th Construction Phase Quarterly EM&A Report for the Project which summarises the key findings of the EM&A programme during the reporting period from 1 April 2024 to 30 June 2024.

1.3        Project Organisation

The Project’s organisation structure is provided in Appendix A. Contact details of the key personnel have been updated and provided in Table 1.1.

Table 1.1: Contact Information of Key Personnel

Party

Position

Name

Telephone

Project Manager’s Representative

(Airport Authority Hong Kong)

Principal Manager, Environmental Compliance, Sustainability

Lawrence Tsui

2183 2734

Environmental Team (ET)

(Mott MacDonald Hong Kong Limited)

Environmental Team Leader

Terence Kong

2828 5919

Deputy Environmental Team Leaders

Heidi Yu

2828 5704

Ken Wong

2828 5817

Independent Environmental Checker (IEC)

(AECOM Asia Company Limited)

Independent Environmental Checker

Roy Man

3729 0380

Deputy Independent Environmental Checker

Jackel Law

3856 5312

 

Reclamation Works:

Party

Position

Name

Telephone

Contract 3206

Main Reclamation Works (ZHEC-CCCC-CDC Joint Venture)

Project Manager

Alan Mong

3763 1352

Environmental Officer

Zhang Bin Wang

3763 1525

 

Airfield Works:

Party

Position

Name

Telephone

Contract 3302

Eastern Vehicular Tunnel Advance Works

(China Road and Bridge Corporation)

Project Manager

Dickey Yau

5699 4503

Environmental Officer

Dennis Ho

5645 0563

Contract 3305

Airfield Ground Lighting System

(ADB Safegate Hong Kong Limited)

Project Manager

Allam Al-Turk

2944 9725

Environmental Officer

Ivan Ting

9222 9490

Contract 3306

Observation Facility Control System Supporting Interim 2RS and 3RS

(Chinney Alliance Engineering Limited)

Project Director

Dennis Yam

9551 9920

Environmental Officer

Richard Liu

9216 8990

Contract 3307

Fire Training Facility

(Paul Y. Construction Company Limited)

Project Manager

Ken Tang

9640 5397

Environmental Officer

Ferddy Leung

5585 6746

Contract 3308

Foreign Object Debris Detection System

(DAS Aviation Services Group)

Project Manager

Jeffrey Yau

9873 7422

Contract 3310

North Runway Modification Works

(China State Construction Engineering (Hong Kong) Ltd.)

Project Manager

Kingsley Chiang

9424 8437

Environmental Officer

Federick Wong

9842 2703

 

Terminal 2 Concourse and Apron Works:

Party

Position

Name

Telephone

Contract 3402

New Integrated Airport Centres Enabling Works

(Wing Hing Construction Co., Ltd.)

Project Manager

Wyman Lau

6112 9753

Health Safety Environmental Manager

Mike Leung

6625 2550

Contract 3403

New Integrated Airport Centres Building and Civil Works

(Sun Fook Kong Construction Limited)

Project Manager

Alice Leung

9220 3162

Environmental Officer

Ray Cheung

9785 1566

Contract 3404

Integrated Airport Control System

(Shun Hing Systems Integration Co., Ltd.)

Project Manager

Andy Ng

9102 2739

Environmental Officer

Michael Lo

6228 3926

Contract 3405

Third Runway Concourse Foundation and Substructure Works

(China Road and Bridge Corporation – Bachy Soletanche Group Limited – LT Sambo Co., Ltd. Joint Venture)

Project Manager

Francis Choi

9423 3469

Environmental Officer

Jacky Lai

9028 8975

Contract 3408

Third Runway Concourse and Apron Works

(Beijing Urban Construction Group Company Limited and Chevalier (Construction) Company Limited Joint Venture)

Senior HSE Manager

Qian Zhang

5377 7976

Environmental Officer

Malcolm Leung

7073 7559

 

Terminal 2 Expansion:

Party

Position

Name

Telephone

Contract 3508

Terminal 2 Expansion Works

(Gammon Engineering & Construction Company Limited)

Project Director

Richard Ellis

6201 5637

Environmental Officer

Carrie Kwan

9276 0551

 

Automated People Mover and Baggage Handling System:

Party

Position

Name

Telephone

Contract 3601

New Automated People Mover System (TRC Line)

(CRRC Puzhen Bombardier Transportation Systems Limited and CRRC Nanjing Puzhen Co., Ltd. Joint Venture)

Project Manager

Hongdan Wei

158 6180 9450

Environmental Officer

H Y Yue

9185 8186

Contract 3602

Existing APM System Modification Works

(Niigata Transys Co., Ltd.)

Project Manager

Xia Bo

6586 4950

Environmental Officer

Y M Tong

5316 9801

Contract 3603

3RS Baggage Handling System (VISH Consortium)

Project Manager

K C Ho

9272 9626

Environmental Officer

Richard Ng

9802 9577

 

Airport Support Infrastructure:

Party

Position

Name

Telephone

Contract 3801

APM and BHS Tunnels on Existing Airport Island

(China State Construction Engineering (Hong Kong) Ltd.)

Project Manager

Kingsley Chiang

9424 8437

Environmental Officer

Eunice Kwok

9243 1331

Contract 3802

APM and BHS Tunnels and Related Works

(Gammon Engineering & Construction Company Limited)

Project Director

John Adams

6111 6989

Environmental Officer

Yan Ng

5345 8555

Contract 3804

East and Landside Fire Stations

(Beijing Urban Construction Group Company Limited - Beijing Urban Construction International Company Limited - Kin Shing (Leung's)

General Contractors Ltd Joint Venture)

Project Manager

Mr. Zhang Xianda

4661 6818

Environmental Officer

Mr. Calvin Sze

9205 9277

Contract 3805

New Airport District Police Operational Base

(Chinney Construction Co., Ltd.)

Project Manager

Cheuk Wing Wai

9339 8321

Environmental Officer

Mike Li

6306 8547

 

Construction Support:

Party

Position

Name

Telephone

Contract 3721

Construction Support Infrastructure Works

(China State Construction Engineering (Hong Kong) Ltd.)

Senior Project Manager

Thomas Lui

9011 5340

Environmental Officer

John Mak

6273 8703

Contract 3728

Minor Site Works

(Shun Yuen Construction Company Limited)

Contract Manager

C K Liu

9194 8739

Environmental Officer

Dan Leung

6856 5899

Contract 3733

Emergency Repair Service

(Wing Hing Construction Co., Ltd.)

Project Manager

Michael Kan

9206 0550

Safety Health Environmental Manager

Mike Leung

6625 2550

Contract 3901A

Concrete Batching Facility

(K. Wah Concrete Company Limited)

Project Manager

Benedict Wong

9553 2806

Environmental Officer

C P Fung

9874 2872

Contract 3901B

Concrete Batching Facility

(Gammon Construction Limited)

General Manager

Gabriel Chan

2435 3260

Environmental Officer

Rex Wong

2695 6319

Contract 3908

Quay Management Services

(Gitanes – Crown Asia Joint Venture)

Project Manager

Mr. Ian Li

9750 6438

Environmental Officer

Mr. Tang Kai Fun

9406 3526

Contract 3913

Asphalt Batching Plant

(SPR Joint Venture)

Project Manager

Xie Yi Sheng

6580 6005

Environmental Officer

Kenneth Chan

9300 2182

 

Utilities:

Party

Position

Name

Telephone

132kV Cable

(CLP Power Hong Kong Limited / Kum Shing (K.F.) Construction Company Limited)

Engineer

Ken Fung

6391 9087

Assistant Engineer

Ben Tang

5133 1754

1.4        Contact information for the Project

The contact information for the Project is provided in Table 1.2. The public can contact us through the following channels if they have any queries and comments on the environmental monitoring data and project related information.

Table 1.2: Contact Information of the Project

Channels

Contact Information

Hotline

3908 0354

Email

env@3rsproject.com

Fax

3747 6050

Postal Address

Airport Authority Hong Kong

HKIA Tower

1 Sky Plaza Road

Hong Kong International Airport

Lantau

Hong Kong

Attn: Environmental Team Leader Mr Terence Kong

c/o Mr Lawrence Tsui (TRD)

1.5        Summary of Construction Works

During the reporting period, the project is in the Interim Two Runway System (I-2RS) stage, in which the new North Runway and the associated taxiway and facilities were operated together with the South Runway and existing airport facilities, with the Centre Runway closed down for modification works.

The key activities of the Project carried out in the reporting period are located in reclamation areas and existing airport island respectively. Works in the reclamation areas included drainage works, land improvement works and filling works, pavement works, superstructure works for Terminal 2 Concourse, tunnel work for APM and BHS and associated works. Land-based works on existing airport island involved T2 expansion works, modification and tunnel work for APM and BHS, utilities works, road and drainage works, excavation works and 132kV cable laying. The locations of the key construction activities are presented in Figure 1.1.

1.6        Summary of EM&A Programme Requirements

The status for all environmental aspects are presented in Table 1.3. The EM&A requirements remained unchanged during the reporting period.

Table 1.3: Summary of Status for All Environmental Aspects under the Updated EM&A Manual

Parameters

EM&A Requirements

Status

Air Quality

 

 

Baseline Monitoring

At least 14 consecutive days before commencement of construction work

The baseline air quality monitoring result was reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4.

Impact Monitoring

At least 3 times every 6 days

On-going

Noise

 

 

Baseline Monitoring

Daily for a period of at least two weeks prior to the commencement of construction works

The baseline noise monitoring result was reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4.

Impact Monitoring

Weekly

On-going

Water Quality

 

 

General Baseline Water Quality Monitoring for reclamation, water jetting and field joint works

Three days per week, at mid-flood and mid-ebb tides, for at least four weeks prior to the commencement of marine works.

The baseline water quality monitoring result was reported in Baseline Water Quality Monitoring Report and submitted to EPD under EP Condition 3.4.

General Impact Water Quality Monitoring for reclamation, water jetting and field joint works

Three days per week, at mid-flood and mid-ebb tides.

General impact water quality monitoring for water jetting works was completed on 23 May 2017.

The general impact water quality monitoring was terminated after 31 October 2023.

Initial Intensive Deep Cement Mixing (DCM) Water Quality Monitoring

At least four weeks

The Initial Intensive DCM Monitoring Report was submitted and approved by EPD in accordance with the Detailed Plan on DCM.

Regular DCM Water Quality Monitoring

Three times per week until completion of DCM works.

Due to the completion of all marine-based DCM works within April 2022, regular DCM monitoring was ceased at all monitoring stations starting from 28 April 2022.

Post-construction Phase Water Quality Monitoring

Three days per week, at mid-flood and mid-ebb tides for four weeks

The four-week post-construction phase water quality monitoring exercise was commenced on 14 November 2023 and completed on 9 December 2023.

Sewerage and Sewage Treatment

Methodology for carrying out annual sewage flow monitoring for concerned gravity sewer

Methodology to be prepared and submitted to EPD one year before the scheduled commencement of operation of the proposed third runway.

The proposed methodology of the annual sewage flow monitoring was approved by EPD. The annual flow monitoring was started from June 2021 and completed in 2022.

Details of the routine H2S monitoring system for the sewerage system of 3RS

Details to be prepared and submitted to EPD at least one year before commencement of the operation of 3RS.

The H2S monitoring proposal was accepted by EPD in June 2023.

Waste Management

 

 

Waste Monitoring

At least weekly

On-going

Land Contamination

 

 

Supplementary Contamination Assessment Plan (CAP)

At least 3 months before commencement of any soil remediation works.

The Supplementary CAP was submitted and approved by EPD under EP condition 2.20.

Site Re-appraisal Summary Report for Fire Training Facility

Site Re-appraisal Summary Report for Fire Training Facility

Site Re-appraisal Summary Report for Fire Training Facility was submitted and accepted by EPD.

Contamination Assessment Report (CAR) for Golf Course

CAR to be submitted for golf course

The CAR for Golf Course was submitted and accepted by EPD.

CAR for Terminal 2 Emergency Power Supply System

CAR to be submitted for Terminal 2 Emergency Power Supply Systems

 

The CARs for Terminal 2 Emergency Power Supply Systems were submitted and accepted by EPD.

Terrestrial Ecology

 

 

Pre-construction Egretry Survey Plan

Once per month in the breeding season between April and July, prior to the commencement of HDD drilling works.

The Egretry Survey Plan was submitted and approved by EPD under EP Condition 2.14.

Ecological Monitoring

Monthly monitoring during the HDD construction works period from August to March.

The terrestrial ecological monitoring at Sheung Sha Chau was completed in January 2019.

Marine Ecology

 

 

Pre-Construction Phase Coral Dive Survey

Prior to marine construction works

The Coral Translocation Plan was submitted and approved by EPD under EP Condition 2.12.

Coral Translocation

-

The coral translocation was completed on 5 January 2017.

Post-translocation Monitoring

As per an enhanced monitoring programme based on the Coral Translocation Plan

The post-translocation monitoring programme according to the Coral Translocation Plan was completed in April 2018.

Chinese White Dolphins (CWD)

 

Baseline Monitoring

6 months of baseline surveys before the commencement of land formation related construction works.

Vessel line transect surveys: Two full surveys per month;

Land-based theodolite tracking surveys: Two days per month at the Sha Chau station and two days per month at the Lung Kwu Chau station; and

Passive Acoustic Monitoring (PAM): For the whole duration of baseline period.

Baseline CWD results were reported in the CWD Baseline Monitoring Report and submitted to EPD in accordance with EP Condition 3.4.

Impact Monitoring

Vessel line transect surveys: Two full surveys per month;

Land-based theodolite tracking surveys: One day per month at the Sha Chau station and one day per month at the Lung Kwu Chau station; and

PAM: For the whole duration for land formation related construction works.

The construction phase CWD monitoring was completed in December 2023.

Post-construction Phase Monitoring

12 months of post-construction phase CWD monitoring upon the completion of marine construction works; and

Vessel line transect surveys: Two full surveys per month.

The post-construction phase monitoring was commenced in January 2024.

Landscape and Visual

 

 

Landscape and Visual Plan

At least 3 months before the commencement of construction works on the formed land of the Project.

The Landscape & Visual Plan was submitted and approved by EPD under EP Condition 2.18

Baseline Monitoring

One-off survey within the Project site boundary prior to commencement of any construction works

The baseline landscape & visual monitoring result was reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4.

Impact Monitoring

Weekly

On-going

Establishment Works Monitoring

Bi-monthly

On-going

Long Term Management (10 years) Monitoring

Annually

On-going

Environmental Auditing

 

Regular site inspection

Weekly

On-going

Marine Mammal Watching Plan (MMWP) implementation measures

Monitor and check

No Marine Mammal Watching Plan (MMWP) implementation measures during this reporting period.

Dolphin Exclusion Zone (DEZ) Plan implementation measures

Monitor and check

No Dolphin Exclusion Zone (DEZ) monitoring was conducted during this reporting period.

SkyPier High Speed Ferries (HSF) implementation measures

Monitor and check

On-going

Construction and Associated Vessels implementation measures

Monitor and check

On-going

Silt Curtain Deployment Plan implementation measures

Monitor and check

Silt Curtain Deployment Plan measure was implemented at C7a during this reporting period.

Spill Response Plan implementation measures

Monitor and check

On-going

Complaint Hotline and Email Channel

Construction phase

On-going

Environmental Log Book

Construction phase

On-going

Taking into account the construction works in the reporting period, impact monitoring of air quality, noise, waste management, landscape & visual, and post-construction phase CWD monitoring were carried out in the reporting period.

The EM&A programme also involved weekly site inspections and related auditing conducted by ET for the checking of implementation of required environmental mitigation measures recommended in the approved EIA Report. To promote the environmental awareness and enhance the environmental performance of the contractors, regular environmental management meetings were conducted during the reporting period which are summarised as below:

·         Fifty-two environmental management meetings for EM&A review with works contracts.

The EM&A programme has been following the recommendations presented in the approved EIA Report and the Manual. A summary of implementation status of the environmental mitigation measures for the construction phase of the Project during the reporting period is provided in Appendix B.

In accordance with Condition 2.6 of EP, AAHK has assisted AFCD in taking forward the statutory procedures for the designation of the NLMP. A gazette notice regarding the approved map was published by the Government on 29 September 2023 with a Draft Designation Order and a relevant Executive Council paper was prepared. The NLMP will come into effect on 1 November 2024 and shall tie in with the commissioning of the 3RS.

2        Environmental Monitoring and Auditing

2.1        Air Quality Monitoring

Impact 1-hour Total Suspended Particulates (TSP) monitoring was conducted three times every six days at two representative monitoring stations during the reporting period. The locations of monitoring stations are described in Table 2.1 and presented in Figure 2.1.

2.1.1         Action and Limit Levels

The Action and Limit Levels of the air quality monitoring stipulated in the EM&A programme for triggering the relevant investigation and follow-up procedures under the programme are provided in Table 2.1 for reference.

Table 2.1: Impact Air Quality Monitoring Stations

Monitoring Station

Location

Action Level (mg/m3)

Limit Level (mg/m3)

AR1A

Man Tung Road Park

306

500

AR2

Village House at Tin Sum

298

2.1.2         Summary of Monitoring Results

The air quality monitoring results in the reporting period are summarised in Table 2.2 and the graphical plot is presented in Appendix C.

Table 2.2: Percentage of Air Quality Monitoring Results within Action and Limit Levels

 

AR1A

AR2

Apr 2024

100%

100%

May 2024

100%

100%

Jun 2024

100%

100%

Overall

100%

100%

Note: The percentages are calculated by dividing the number of monitoring results within their corresponding Action and Limit Levels by the total number of monitoring results.

All monitoring results were within their corresponding Action and Limit Levels at all monitoring stations in the reporting period.

General meteorological conditions in the last month of the previous quarter and this reporting period were recorded and summarised in Table 2.3.

Table 2.3: General Meteorological Condition during Impact Air Quality Monitoring

 

Weather

Dominant Wind Direction

Mar 2024

Sunny to Cloudy

West to East

Apr 2024

Cloudy to Drizzle

South to North

May 2024

Sunny to Drizzle

Northwest to Southeast

Jun 2024

Cloudy

Southwest to East

2.1.3          Conclusion

No dust emission source was observed at the monitoring stations during the monitoring sessions. As the sensitive receivers were far away from the construction activities, with the implementation of dust control measures, there was no adverse impact at the sensitive receivers attributable to the works of the Project.

2.2        Noise Monitoring

Impact noise monitoring was conducted at four representative monitoring stations once per week during 0700 and 1900 in the reporting period. The locations of monitoring stations are described in Table 2.4 and presented in Figure 2.1.

2.2.1         Action and Limit Levels

The Action and Limit Levels of the noise monitoring stipulated in the EM&A programme for triggering the relevant investigation and follow-up procedures under the programme are provided in Table 2.4 for reference.

Table 2.4: Impact Noise Monitoring Stations

Monitoring Station

Location

Action Level

Limit Level

NM1A

Man Tung Road Park

When one documented complaint is received from any one of the sensitive receivers

75 dB(A)

NM4

Ching Chung Hau Po Woon Primary School

65dB(A) / 70 dB(A) (i)

NM5

Village House in Tin Sum

75 dB(A)

NM6

House No. 1, Sha Lo Wan

75 dB(A)

Note:

 (i) The Limit Level for NM4 is reduced to 70 dB(A) for being an educational institution. During school examination period, the Limit Level is further reduced to 65 dB(A).

2.2.2         Summary of Monitoring Results

The noise monitoring results in the reporting period are summarised in Table 2.5 and the graphical plot is presented in Appendix C.

Table 2.5: Percentage of Noise Monitoring Results within Action and Limit Levels  

 

NM1A

NM4

NM5

NM6

Apr 2024

100%

100%

100%

100%

May 2024

100%

100%

100%

100%

Jun 2024

100%

100%

100%

100%

Overall

100%

100%

100%

100%

Note: The percentages are calculated by dividing the number of monitoring results within their corresponding Action and Limit Levels by the total number of monitoring results.

No complaints were received from any sensitive receiver that triggered the Action Level.

General meteorological conditions in the last month of the previous quarter and this reporting period were recorded and summarised in Table 2.6.

Table 2.6: General Meteorological Condition during Impact Noise Monitoring

 

Weather

Mar 2024

Sunny to Overcast

Apr 2024

Sunny to Drizzle

May 2024

Sunny to Drizzle

Jun 2024

Sunny to Overcast

2.2.3         Conclusion

Major sources of noise dominating the monitoring stations observed during the construction noise impact monitoring were traffic noise near NM1A, school activities near NM4, and aircraft noise near NM6. As the sensitive receivers were far away from the construction activities, with the implementation of noise control measures, there was no adverse impact at the sensitive receivers attributable to the works of the Project.

2.3        Water Quality Monitoring

All water impact monitoring work has been completed, with results presented in the Annual EM&A Report for 2023 and to be included in the Final EM&A Report. Based on the analysis presented in Annual EM&A report for 2023, the post-construction phase water quality monitoring did not reveal significant changes of the water quality when comparing with baseline water quality monitoring, and it can be concluded that the marine works of the Project during construction phase did not cause deterioration in or adverse impacts on the marine water quality surrounding the Project site.

2.4        Waste Monitoring

In accordance with the Manual, waste generated from construction activities was audited once per week to determine if wastes were being managed in accordance with the Waste Management Plan (WMP) prepared for the Project, contract-specific WMP, and any statutory and contractual requirements. All aspects of waste management including waste generation, storage, transportation, and disposal were assessed during the audits.

2.4.1         Action and Limit Levels

The Action and Limit Levels of the construction waste are provided in Table 2.7.

Table 2.7: Action and Limit Levels for Construction Waste

Monitoring Stations

Action Level

Limit Level

Construction Area

When one valid documented complaint is received

Non-compliance of the WMP, contract-specific WMPs, any statutory and contractual requirements

2.4.2         Summary of Monitoring Results

Weekly monitoring of the Project construction works was carried out by the ET in the reporting period to check and monitor the implementation of proper waste management practices.

Recommendations made by the ET included provision and maintenance of proper chemical waste storage area, as well as handling, segregation, and regular disposal of general refuse. The contractors took actions to implement the recommended measures. Waste management audits were carried out by ET according to the requirements of the Waste Management Plan, updated EM&A Manual and the implementation schedule of the waste management mitigation measures in Appendix B.

Based on updated contractors’ information, summary of construction waste generated in the reporting period is presented in Table 2.8. ET and IEC carried out site audits regularly and reviewed the trip ticket system.

The contractors established the recycling strategy for C&D materials with proper planning and design to maximize recycling and reuse. Dedicated recyclers were employed for different kinds of recyclable materials by the contractors. Dedicated areas for sorting of materials are established on site. Recyclable materials such as steel bar, metal strip, aluminium, paper and plastic are sorted on-site and transported off-site for recycling during this reporting period.

Table 2.8: Construction Waste Statistics

 

C&D(1) Material Stockpiled for Reuse or Recycle

(m3)

C&D Material Reused in the Project (m3)

C&D Material Reused in other Projects (m3)

C&D Material Transferred to Public Fill(2)

(m3)

Chemical Waste

(kg)

Chemical Waste

(l)

General Refuse (tonne)

Pervious reporting period

Jan 2024

0

1,508

1,530

6,897

2,500

0

4,501

Feb 2024(3)

0

486

82

5,373

0

600

3,383

Mar 2024(3)

0

137

14,993

8,814

0

1,800

4,825

Total

0

2,131

16,605

21,084

2,500

2,400

12,709

This reporting period

Apr 2024(3)

0

131

3,058

4,959

0

0

4,875

May 2024

0

525

0

5,147

1,350

0

5,079

Jun 2024(3)

0

16,018

0

4,380

60

1,300

6,789

Total

      0

16,674

3,058

14,486

1,410

1,300

16,743

Notes:

1.      C&D refers to Construction and Demolition.

2.      C&D materials not suitable for reuse on-site, including asphalt waste and sediment slurry, were transferred to public fill during the reporting period.

3.      Updated figures were provided by contractors.

There were no complaint, non-compliance of the WMP, contract-specific WMPs, statutory and contractual requirements that triggered Action and Limit Levels in this reporting period.

2.4.3         Marine Sediment Management

Marine sediment is managed according to the EIA Report, Updated EM&A Manual and Waste Management Plan and the proposal of Further Development on Treatment Level / Details and the Reuse Mode for Marine Sediment (hereinafter referred to as “Further Development Proposal”) of the Project. The storage conditions of the excavated marine sediment, treatment process, final backfilling location as well as associated records were inspected and checked by ET and verified by IEC to ensure they were in compliance with the requirements as stipulated in the Waste Management Plan and Further Development Proposal.

Backfilling works for treated marine sediment generated from the reclaimed land area were conducted during the reporting period. The details of the marine sediment sampling, treatment and backfilling can be referred to Annual EM&A Report No.8.

2.5        Chinese White Dolphin Monitoring

The post-construction phase CWD monitoring was conducted by vessel line transect survey at a frequency of two full surveys per month. The vessel survey transects followed the transect lines proposed in the Manual and are consistent with those used in the Agriculture, Fisheries and Conservation Department (AFCD) long-term CWD monitoring programme. The transect locations of CWD monitoring by vessel line transect survey are shown in Figure 2.2.

The post-construction phase CWD monitoring which is conducted by vessel line transect survey at a frequency of two full surveys per month has been commenced since January 2024.

2.5.1         Summary of Monitoring Results

2.5.1.1           Vessel Line Transect Survey

Survey Effort

During the reporting period from April to June 2024, a total of six sets of vessel line transect survey covering all transects in Northeast Lantau (NEL), Northwest Lantau (NWL), Airport West (AW), West Lantau (WL) and Southwest Lantau (SWL) survey areas were conducted at a frequency of twice per month, in each survey area.

A total of around 1,355 km of survey effort was collected from these surveys, with around 95.2% of the total survey effort being conducted under favourable weather condition (i.e. Beaufort Sea State 3 or below with favourable visibility). Details of the survey effort data are presented in Appendix C.

CWD Sighting

From April to June 2024, there were a total of 35 sightings of CWD, with 101 dolphins sighted (Table 2.9). All these sightings were recorded during on-effort searches under favourable weather condition.

When breaking down the sightings by survey areas, 23 sightings with a total of 69 dolphins and 10 sightings with a total of 30 dolphins were recorded in, WL and SWL respectively during the current reporting period. Two sightings of two dolphins were recorded in NWL. No CWD was sighted in NEL survey area.

Compared with the previous quarter (i.e. January to March 2024), the total number of CWD sightings and the total number of the dolphins have increased by 67% and 35% respectively. There was a notable increase in dolphin sightings and the number of dolphins in both WL and SWL survey area in the current reporting quarter.

Compared with the same quarter of last year (i.e., April to June 2023), there was a decrease in both the total number of sightings and the total number of dolphins by 15% and 31% respectively. In WL, there was a decrease in both the number of sightings and number of dolphins by 32% and 48% respectively. On the other hand, there was a significant increase in both number of sightings and number of dolphins in SWL by 67% and 131% respectively. Moreover, there were slight increases in both total number of sightings and total number of dolphins by 1 in NWL.

Table 2.9 below shows the comparison of the numbers of sightings and dolphins amongst the current reporting period, last quarter, and the same quarter of last year.

Table 2.9: Summary of Number of CWD Sightings and Number of Dolphins for the Same Quarter Last Year, Previous Quarter, and Current Reporting Period

 

Same Quarter of Last Year

Previous Reporting Period

Current Reporting Period

 

April to June 2023

January to March 2024

April to June 2024

NEL

0 (0)

0 (0)

0 (0)

NWL

1 (1)

       0 (0)

2 (2)

AW

0 (0)

1 (1)

0 (0)

WL

34 (132)

18 (68)

23 (69)

SWL

6 (13)

2 (6)

10 (30)

Total

41 (146)

21 (75)

35 (101)

Note: Values in ( ) represent number of dolphins

The distribution of CWD sightings recorded from April to June 2024 is illustrated in Figure 2.3. In WL, most CWD sightings were scattered amongst the entire survey area, with the majority scattered at the waters between Tai O and Fan Lau. In SWL, the CWD sightings scattered amongst the entire survey area, with the majority scattered at the northern water of Soko Islands. In NWL, the only two CWD sightings were recorded in western waters of the Airport. No CWD sightings were recorded in NEL survey area during the reporting period. Details of the sighting data are presented in Appendix C.

Figure 2.3: Sightings Distribution of Chinese White Dolphins from April to June 2024

Remarks: (1) Please note that there are 35 pink circles on the map indicating the sighting locations of CWD. Some of them were very close to each other and therefore appear overlapped on this sighting distribution map. (2) Marine Park excludes land area and the landward boundary generally follows the high water mark along the coastline.

 

 

Group Size

Between April to June 2024, the group size of CWD sightings ranged from one to nine dolphins. The average group size of CWD was 2.89 dolphins per group, which is smaller than that of the last quarter (3.57 dolphins per group). The average group size of CWD in this reporting quarter is smaller than that of the same quarter of last year (3.56 dolphins per group).

In this reporting quarter, over half of the CWD sightings were in small group size (i.e., 1-2 dolphins). There was no CWD sighting with large group size (i.e., 10 or more dolphins) recorded in this reporting period.

There was no apparent pattern in the distribution of small-sized dolphin groups and medium-sized dolphin groups in all survey areas. Sighting locations of CWD groups with different group sizes are depicted in Figure 2.4.

Figure 2.4: Sighting Locations of Chinese White Dolphins with Different Group Sizes

Remarks: (1) Please note that there are 35 circles on the map indicating the sighting locations of CWD. Some of them were very close to each other and therefore appear overlapped on this sighting distribution map. (2) Marine park excludes land area and the landward boundary generally follows the high water mark along the coastline.

 

 

 

Activities and Association with Fishing Boats

From April to June 2024, eight sightings of CWD were recorded with foraging activities. Amongst them, two sighting were observed associated with operating purse seiner in WL while one sighting was observed associated with operating gillnetter in SWL.

Sightings with foraging activities recorded in the current reporting period was higher than that in the previous reporting period (i.e., six sightings involved foraging activities between January and March 2024). The number of CWD sightings with foraging activities in this reporting period was also lower than that in the same quarter of last year (i.e., 12 sightings between April to June 2023).

The sighting locations of CWDs engaged in different behaviours during the current reporting period are illustrated in Figure 2.5.

Figure 2.5: Sighting Locations of Chinese White Dolphins Engaged in Different Behaviours

Remarks: (1) Marine park excludes land area and the landward boundary generally follows the high water mark along the coastline.


Mother-calf Pairs

From April to June 2024, four sightings of CWD were recorded with the presence of mother-and-unspotted juvenile pairs and/or mother-and-calf pair, which was lower than that recorded in the previous reporting quarter (i.e., seven sightings between January and March 2024). The number of CWD sightings with the presence of mother-calf pairs was lower than that recorded in the same quarter of last year (i.e., nine sightings between April to June 2023).

These four sightings with the presence of mother-calf pairs recording during the reporting period were recorded in WL and SWL survey area. The locations of CWD sightings with the presence of mother-calf pairs are shown in Figure 2.6.

Figure 2.6: Sighting Locations of Mother-calf Pairs  

Remarks: (1) Please note that there are 4 circles on the map indicating the sighting locations of CWD. Some of them were very close to each other and therefore appear overlapped on this sighting distribution map. (2) Marine park excludes land area and the landward boundary generally follows the high water mark along the coastline.

Photo Identification

Between April and June 2024, a total number of 45 different CWD individuals were identified altogether for 62 times. Re-sighting information of CWD individuals provides an initial idea of their range use and apparent connection between different areas of Lantau waters. Amongst these 45 different CWD individuals, 13 animals (i.e., SLMM003, SLMM014, SLMM025, SLMM027, SLMM029, SLMM052, WLMM004, WLMM007, WLMM056, WLMM073, WLMM080, WLMM163 and WLMM192) were sighted for more than once.

Seven individuals including SLMM003, SLMM029, SLMM052, WLMM004, WLMM007, WLMM073 and WLMM192 were re-sighted in different survey areas during this reporting period. The most frequently re-sighted individuals in this reporting quarter were SLMM003, SLMM014, WLMM007 and WLMM163 that were all successfully identified for three times. The numbers of CWD individuals re-sighted more than once was lower than that of the last report reporting period from January to March 2024 while the number of identified individuals showed cross-area movement is in opposite trend (i.e. 7 CWD individuals in current reporting period versus and 3 in last reporting period).

A summary of photo identification works is presented in Table 2.10. Representative photos of the 45 identified individuals and figures depicting the sighting locations of the aforementioned 7 individuals re-sighted in different survey areas in this reporting period are presented in Appendix C.

Table 2.10: Summary of Photo Identification

Individual ID

Date of sighting

Sighting Group No.

Area

 

Individual
ID

Date of sighting

Sighting Group No.

Area

NLMM012

12-Apr-24

5

WL

 

WLMM027

12-Apr-24

4

WL

NLMM013

14-May-24

1

NWL

 

WLMM038

13-May-24

1

WL

NLMM020

12-Apr-24

3

WL

 

WLMM039

12-Apr-24

12

WL

NLMM023

25-Jun-24

1

NWL

 

WLMM056

12-Apr-24

3

WL

NLMM039

11-Jun-24

3

WL

 

 

 

9

WL

NLMM089

20-Jun-24

6

SWL

 

WLMM063

20-Jun-24

5

SWL

SLMM002

12-Apr-24

9

WL

 

WLMM067

12-Apr-24

12

WL

SLMM003

13-May-24

3

WL

 

WLMM068

12-Apr-24

12

WL

 

11-Jun-24

2

WL

 

WLMM071

6-May-24

10

SWL

 

20-Jun-24

1

SWL

 

WLMM073

5-Jun-24

1

WL

SLMM014

6-May-24

6

SWL

 

 

20-Jun-24

4

SWL

 

 

8

SWL

 

WLMM080

12-Apr-24

1

WL

 

20-Jun-24

3

SWL

 

 

17-Apr-24

1

WL

SLMM023

12-Apr-24

3

WL

 

WLMM114

11-Jun-24

4

WL

SLMM025

12-Apr-24

3

WL

 

WLMM118

12-Apr-24

3

WL

 

5-Jun-24

1

WL

 

WLMM141

20-Jun-24

5

SWL

SLMM027

12-Apr-24

3

WL

 

WLMM150

12-Apr-24

9

WL

 

5-Jun-24

1

WL

 

WLMM152

12-Apr-24

5

WL

SLMM029

12-Apr-24

11

WL

 

WLMM159

17-Apr-24

1

WL

 

20-Jun-24

5

SWL

 

WLMM162

12-Apr-24

12

WL

SLMM031

6-May-24

6

SWL

 

WLMM163

12-Apr-24

3

WL

SLMM052

12-Apr-24

12

WL

 

 

 

4

WL

 

20-Jun-24

5

SWL

 

 

 

6

WL

SLMM060

20-Jun-24

2

SWL

 

WLMM178

13-May-24

1

WL

SLMM074

12-Apr-24

7

WL

 

WLMM192

12-Apr-24

12

WL

WLMM004

13-May-24

2

WL

 

 

20-Jun-24

5

SWL

 

20-Jun-24

5

SWL

 

WLMM195

12-Apr-24

2

WL

WLMM007

12-Apr-24

9

WL

 

WLMM196

12-Apr-24

2

WL

 

20-Jun-24

4

SWL

 

WLMM197

12-Apr-24

2

WL

 

 

5

SWL

 

WLMM198

12-Apr-24

2

WL

WLMM018

20-Jun-24

4

SWL

 

WLMM199

11-Jun-24

4

WL

2.5.1.2           Site Audit for CWD-related Mitigation Measures

During the reporting period, no dolphin observation station was deployed by the contractor for continuous monitoring of the DEZ in accordance with the DEZ Plan. During this reporting period, no training session were provided by the ET for the proposed dolphin observers.

Summary of audits of SkyPier HSFs route diversion and speed control and construction vessel management are presented in Section 2.7 and Section 2.8 respectively.

2.6        Environmental Site Inspection

Site inspections of the construction works to audit the implementation of proper environmental pollution control and mitigation measures for the Project were conducted by ET and IEC on a weekly and bi-weekly basis, respectively. Besides, ad-hoc site inspections were also conducted by ET and IEC if environmental problems were identified, or subsequent to receipt of an environmental complaint, or as part of the investigation work. These site inspections provided a direct means to reinforce the specified environmental protection requirements and pollution control measures in construction sites.

During site inspections, environmental situation, status of implementation of pollution control and mitigation measures were observed. Environmental documents and site records, including waste disposal record, maintenance record of environmental equipment, and relevant environmental permit and licences, were also checked on-site. Observations were recorded in the site inspection checklist and passed to the contractor together with the appropriate recommended mitigation measures where necessary in order to advise contractors on environmental improvement, awareness and on-site enhancement measures. The observations were made with reference to the following information during the site inspections:

·         The EIA and EM&A requirements;

·         Relevant environmental protection laws, guidelines, and practice notes;

·         The EP conditions and other submissions under the EP;

·         Monitoring results of EM&A programme;

·         Works progress and programme;

·         Proposal of individual works;

·         Contract specifications on environmental protection; and

·         Previous site inspection results.

Good site practices were implemented in the project to enhance environmental performance. Key examples implemented in the Project are highlighted as below:

1.     Metals including iron and steel generated were segregated to improve material reuse and recycling by contractor.

2.     Erection of acoustic barrier around the breaker part of excavator mounted breaker to enhance the noise mitigation measures.

3.     Environmental training was provided by contractor to site personnel for proper waste management and chemical waste handling procedures.

Metal recycling by contractor

Erection of acoustic barrier

Provision of environmental training for site personnel by contractor

Besides, advice was given when necessary to ensure the construction workforce were familiar with relevant procedures, and to maintain good environmental performance on site. Regular toolbox talks on environmental issues were organised for the construction workforce by the contractors to ensure understanding and proper implementation of environmental protection and pollution control mitigation measures.

A summary of implementation status of the environmental mitigation measures for the construction phase of the Project during the reporting period is provided in Appendix B.

2.6.1         Landscape and Visual Mitigation Measures

Implementation of applicable landscape and visual mitigation measures (reference to the environmental protection measures CM1 – CM10 and OM7 in Appendix B) was monitored regularly in accordance with the Manual. The implementation status of the environmental protection measures is summarised in Table 2.11. For trees which were managed under the Project during the reporting period, relevant measures (i.e., CM1 CM9) were implemented by Contract 3508. For CM10, the advanced hydroseeding works around taxiways and runways were carried out during the reporting period. The total number of retained trees, transplanted trees and to-be-transplanted trees under the management of Project are summarized in Table 2.12.

The total number of retained trees of the Project as of June 2024 was 33. Compared to 34 retained trees reported in the previous reporting period, the change in number was due to the following reason:

·         1 no. of tree under Contract 3508 was found dead and removed (-1 no.).

Table 2.13 lists the affected tree ID together with the reason for change of retained tree status of the Project.

The cumulative total number of transplanted trees of the Project remained unchanged (i.e. 26 nos.) comparing with previous reporting quarter. Details of the summary of transplanted trees are shown in Table 2.14.

For OM7, the bi-monthly site inspections for 12-month establishment period were undertaken in April, May and June 2024 during the reporting period.

Table 2.11: Landscape and Visual – Construction Phase Audit Summary

Landscape and Visual Mitigation Measures during Construction

Implementation Status

Implementation Status

Relevant Contract(s) in the Reporting Period

CM1 – The construction area and contractor’s temporary works areas shall be minimised to avoid impacts on adjacent landscape.

The implementation of mitigation measures were checked by ET during weekly site inspection and clarified by the Contractors during the monthly Environmental Management Meetings. Implementation of the measures CM5, CM6 and CM7 by Contractors was observed.

All works contracts

CM2 – Reduction of construction period to practical minimum.

CM3 – Phasing of the construction stage to reduce visual impacts during the construction phase.

CM4 – Construction traffic (land and sea) including construction plants, construction vessels and barges shall be kept to a practical minimum.

CM5 – Erection of decorative mesh screens or construction hoardings around works areas in visually unobtrusive colours.

CM6 – Avoidance of excessive height and bulk of site buildings and structures

CM7 – Control of night-time lighting by hooding all lights and through minimisation of night working periods

CM8 – All existing trees shall be carefully protected during construction.  Detailed Tree Protection Specification shall be provided in the Contract Specification. Under this specification, the Contractor shall be required to submit, for approval, a detailed working method statement for the protection of trees prior to undertaking any works adjacent to all retained trees, including trees in contractor’s works areas

Tree Protection Specifications were provided in the relevant Contract Specifications respectively for implementation by the Contractors under the Project. 

 

The Contractors’ performance on the implementation of the trees maintenance and protection measures were observed and checked by the ET weekly during construction period.

3508

 

 

CM9 – Trees unavoidably affected by the works shall be transplanted where practical.  A detailed Tree Transplanting Specification shall be provided in the Contract Specification, if applicable. Sufficient time for necessary tree root and crown preparation periods shall be allowed in the project programme

Tree Transplanting Specifications were provided in the relevant Contract Specifications respectively for implementation by the Contractors under the Project where trees will unavoidably be affected by the construction works. 

 

The Contractors were required to submit Method Statements for tree transplanting prior to the transplanting works. Tree inspections were conducted by ET to check the tree transplanting works implemented by the Contractors on site.

 

The Contractors’ performance on the implementation of trees maintenance and protection measures on transplanted trees were observed and checked by the ET bi-monthly during the 12-month establishment period after the completion of each batch of transplanting works.

 

Long term management of the transplanted trees were currently monitored by ET annually.  

3508

CM 10 – Land formation works shall be followed with advanced hydroseeding around taxiways and runways as soon as practical

The Contractor’s performance on the implementation of advanced hydroseeding works was observed and checked by the ET during the weekly site inspection.

3310

OM7 – Compensatory tree planting for all felled trees shall be provided to the satisfaction of relevant Government departments.  Required numbers and locations of compensatory trees shall be determined and agreed separately with Government during the Tree Felling Application process under the relevant technical circulars.(1)

Compensatory trees have been planted in batches at different time periods.

 

The compensatory trees were checked by ET bi-monthly during the 12-month establishment period after the completion of each batch of compensatory tree planting works.

AAHK

Note:

(1) AAHK is the management and maintenance agency of the compensatory trees. Tree Felling Application is not required for 3RS project.

Table 2.12: Summary of the Number of Retained, Transplanted and To-be-transplanted Trees in the Reporting Period

Contract No.

Retained (nos.)

Transplanted (nos.)

To-be-transplanted (nos.)

Establishment Period

Maintenance Period

3503(1)

0

0

9

0

3508

33

0

12

0

3801(2)

0

0

5

0

Grand Total

33

0

26

0

Notes:

(1)   Contract 3503 was completed and the 9 transplanted trees, including T835, T836, T838, T812, T814, T815, T829, T830 and T831, have been handed over to AAHK in February 2022.

(2)   The 5 transplanted trees, including CT276, CT1253, CT1194, CT1794 and CT1795, have been handed over to other management agencies. Details of the management agency are presented in Table 2.14.

Table 2.13: Summary of the Tree Status Updated in the Reporting Period

Tree ID(s) 

Contract

Previous  

Status  

(Mar 2024) 

Current 

Status  

(Jun 2024) 

Remarks 

Impact to Retained Tree Number 

T1390A

3508

Retain 

Fell

1 no. of tree was found dead and removed in June 2024.

-  1 no. 

Table 2.14: Summary of the Transplanted Trees Updated in the Reporting Period

Tree ID

Transplant Date

Management Stage

Management Agency

Remarks

CT276

3 May 2018

Long Term Management period

Jun 2019 – May 2028

Southern Landside Petrol Filling Station

Next inspection will be conducted in February 2025. Photos of the last inspection in February 2024 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No. 98.

CT1253

4 May 2018

Long Term Management period

Jun 2019 – May 2028

Southern Landside Petrol Filling Station

T835

22 Jan 2020

Long Term Management period

Feb 2021 – Jan 2030

AAHK

Establishment Period was completed. The trees within the land parcel was acquired for construction of infrastructure. The trees were felled in 2023.

T836

13 Dec 2019

Long Term Management period

Feb 2021 – Jan 2030

AAHK

T838

22 Jan 2020

Long Term Management period

Feb 2021 – Jan 2030

AAHK

T812

21 Dec 2020

Long Term Management period

Jan 2022 – Dec 2031

AAHK

Next inspection will be conducted in December 2024. Photos of the last inspection in December 2023 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No. 96.

T814

20 Dec 2020

Long Term Management period

Jan 2022 – Dec 2031

AAHK

T815

15 Dec 2020

Long Term Management period

Jan 2022 – Dec 2031

AAHK

T829

18 Dec 2020

Long Term Management period

Jan 2022 – Dec 2031

AAHK

T830

14 Dec 2020

Long Term Management period

Jan 2022 – Dec 2031

AAHK

T831

19 Dec 2020

Long Term Management period

Jan 2022 – Dec 2031

AAHK

T1493

6 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

Next inspection will be conducted in July 2024. Photos of the last inspection in July 2023 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No.91.

T1494

6 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1495

10 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1496

5 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1497

5 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1498

29 Jun 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1499

29 Jun 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

T1500

30 Jun 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

T1501

30 Jun 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

T1502

5 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1503

6 Jul 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

 

T1504

24 Jun 2021

Long Term Management period

Aug 2022 – Jul 2031

Contract 3508

CT1194

4 May 2018

Long Term Management period

Jun 2019 – May 2028

Southern Landside Petrol Filling Station

 

Uprooted and collapsed due to Typhoon Higos on 18 August 2020. Tree removal was conducted as recommended by tree specialist of the contractor of Southern Landside Petrol Filing Station.

CT1794

3 May 2018

Long Term Management period

Jun 2019 – May 2028

AsiaWorld-Expo

The tree within the land parcel was acquired by the government for construction of emergency hospital to handle COVID19 pandemic at AsiaWorld-Expo. The tree was felled in late 2020.

CT1795

3 May 2018

Long Term Management period

Jun 2019 – May 2028

AsiaWorld-Expo

The tree within the land parcel was acquired by the government for construction of emergency hospital to handle COVID19 pandemic at AsiaWorld-Expo. The tree was felled in late 2020.

 

2.6.2         Land Contamination Assessment

The Supplementary CAP was submitted to EPD pursuant to EP Condition 2.20. The CARs for Golf Course and T2 Emergency Power Supply Systems (EPSS) were submitted to EPD in accordance with EP Condition 1.9 and the Supplementary CAP in which no land contamination issues were identified. EPD has issued no further comment for aforesaid CARs.  No leakage was found after the removal of underground fuel pipelines and all required additional photos were submitted to EPD.

According to the approved supplementary CAP, there are 3 remaining locations where site re-appraisal / additional site investigation are proposed. The site re-appraisal summary report for Fire Training Facility was submitted and accepted by EPD on 20 December 2023. The status of site re-appraisal/ additional site investigation of the 2 remaining locations (Fuel Tank Room to the west of CAD Antenna Farm and Airside Petrol Filling Station) shall be further updated upon latest development programme is available. 

2.7        Audit of SkyPier High Speed Ferries

The Marine Travel Routes and Management Plan for High Speed Ferries of SkyPier (the SkyPier Plan) was submitted to the Advisory Council on the Environment for comment and subsequently submitted to and approved by EPD in November 2015 under EP Condition 2.10. The approved SkyPier Plan is available on the dedicated website of the Project. In the SkyPier Plan, AAHK has committed to implement the mitigation measure of requiring HSFs of SkyPier travelling between HKIA and Zhuhai / Macau to start diverting the route with associated speed control across the area, i.e. Speed Control Zone (SCZ), with high CWD abundance. The route diversion and speed restriction at the SCZ have been implemented since 28 December 2015.

In total, 79 ferry movements between HKIA SkyPier and Macau were audited in the reporting period. The daily movements of all SkyPier HSFs in the reporting period, including those not using the diverted route, ranged between 40 and 55, which fell within the maximum daily cap number of 125.

The average speed of the HSF travelling through the Speed Control Zone (SCZ) ranged from 10.5 to 13.6 knots. All HSFs travelled through the SCZ with average speed within 15 knots, used diverted route and entered / left SCZ through gate access points in compliance with the SkyPier Plan. The summary of the SkyPier Plan monitoring result is presented in Graph 1.

 

Graph 1: Summary of SkyPier High Speed Ferries Monitoring Results

  

2.8        Audit of Construction and Associated Vessels

On the implementation of the updated Marine Travel Routes and Management Plan for Construction and Associated Vessels (MTRMP-CAV), the Maritime Surveillance System (MSS) automatically recorded deviation cases such as speeding, and entering no entry zone. ET conducted bi-weekly audit of relevant information including AIS data, vessel tracks and other relevant records to ensure sufficient information were provided by the system and the contractors complied with the requirements of the MTRMP-CAV. The contactors submitted 3-month rolling vessel plans for construction vessel activities to AAHK in order to help maintain the number of construction vessels to a practicable minimum. The IEC also performed audit on the compliance of the requirements as part of the EM&A programme.

During the reporting period, deviations including speeding within the works area, and entering no-entry zones were identified. After investigation by the contractors’ Construction Traffic Control Centre (CTCC) representatives, all the concerned captains were reminded to comply with the requirements of the MTRMP-CAV. 

One skipper training workshop was held with two captains by ET. Two skipper training workshops were held with four captains by contractors’ Environmental Officers and competency tests were conducted subsequently with the trained captains by ET.

2.9        Review of the Key Assumptions Adopted in the EIA Report

With reference to Appendix E of the Manual, it is noted that the key assumptions adopted in approved EIA report for the construction phase are still valid and no major changes are involved. The environmental mitigation measures recommended in the approved EIA Report remain applicable and shall be implemented in undertaking construction works for the Project.

3        Report on Non-compliance, Complaints, Notifications of Summons and Prosecutions

3.1        Compliance with Other Statutory Environmental Requirements

During the reporting period, environmental related licenses and permits required for the construction activities were checked. No non-compliance with environmental statutory requirements was recorded.

3.2        Analysis and Interpretation of Complaints, Notification of Summons and Status of Prosecutions

3.2.1         Complaints

During the previous reporting period, two environmental complaints were received and under investigation during the reporting period. The details are summarized in Table 3.1 below. During the current reporting period, three environmental complaints were received and the details are summarized in Table 3.1 below as well.

Table 3.1: Summary of Environmental Complaints

Date of Complaint Received

Details

Analysis/ Remedial Actions

Status

15 March 2024

In the previous reporting period, a complaint regarding construction dust at Airport North Interchange and South Perimeter Road was received.

A complaint regarding construction dust at Airport North Interchange and South Perimeter Road was received on 15 March 2024. The case was investigated by ET in accordance with the Manual and the Complaint Management Plan of the Project. ET requested the relevant contractors to provide information regarding the complaint and replies indicated dust suppression measures including the deployment of water trucks for road washing, water spraying by workers, wheel washing facilities at the vehicular site exit, compaction works for soil stockpiles and erection of bund wall at the bottom of water barriers along public road to prevent sand and gravel from falling onto the road, were implemented. During the ET’s site inspections, no dust related items were recorded. Nevertheless, the relevant contractors were reminded to continuously implement dust mitigation measures at their vehicular site exits and works areas adjacent to public roads. Hence, the case was considered closed.

Closed

15 March 2024

In the previous reporting period, a complaint regarding noise issue at Cheong Tat Road was received.

A complaint regarding noise issue at Cheong Tat Road was received on 15 March 2024. The case was investigated by ET in accordance with the Manual and the Complaint Management Plan of the Project. ET requested the relevant contractor to provide information regarding the complaint and reply indicated noise control measures including wrapping of noise insulation materials on the noisy part/ breaker head of excavator mounted breaker and erection of noise insulation sheets surrounding the works area were implemented. During the ET’s site inspections, no noise nuisance issue was recorded. Nevertheless, the relevant contractor was reminded to continuously implement their current and enhanced noise mitigation measures. Hence, the case was considered closed.

Closed

21 May 2024

A complaint regarding dust nuisance was received.

A complaint regarding dust nuisance at 3RS construction site was received on 21 May 2024. The case was investigated by ET in accordance with the Manual and the Complaint Management Plan of the Project. ET requested the relevant contractor to provide information regarding the complaint and reply indicated dust suppression measures were in place. During the ET’s site inspections, no dust related items were recorded. Nevertheless, the relevant contractor was reminded to continuously implement dust mitigation measures at the concerned haul roads. Hence, the case was considered closed.

Closed

23 May 2024

Two complaints regarding light nuisance were received.

Two complaints regarding light nuisance coming from airport island as observed from Tung Chung were received on 23 May 2024. The cases were investigated by ET in accordance with the Manual and the Complaint Management Plan of the Project. ET requested the relevant contractor to provide information regarding the complaints and reply indicated the concerned contractor, immediately upon receiving the case, adjusted the lighting angles of their spotlights and conducted refresher training with frontline workers on the use of lighting at the concerned area. During the ET’s site inspections, the observed lighting nuisance was minimised. Nevertheless, the relevant contractor was reminded to keep review their control of nighttime lighting at the concerned area and ensure no light nuisance. Hence, the cases were considered closed.

Closed

3.2.2         Notifications of Summons or Status of Prosecution  

Neither notification of summons nor prosecution was received during the reporting period.

3.3        Cumulative Statistics

Cumulative statistics on valid exceedance, non-compliance, complaints, notifications of summons and status of prosecutions are summarised in Table 3.2 and Table 3.3.

Table 3.2: Statistics for Valid Exceedances for the Environmental Monitoring

 

 

Total No. Recorded in the Reporting Period

Total No. Recorded since the Project Commenced

1-hr TSP

Action Level

0

0

 

Limit Level

0

0

Noise

Action Level

0

0

 

Limit Level

0

0

Waste

Action Level

0

1

 

Limit Level

0

0

Water

Action Level

Nil(2)

0

 

Limit Level

Nil(2)

0

CWD

Action Level

Nil(3)

0

 

Limit Level

Nil(3)

0

Remarks: 1) Non-project related triggers of Action or Limit Level are not shown in this table.

              2) With the completion of land formation works including seawall construction and all marine filling works in the first quarter of 2023, the construction phase water quality impact monitoring was terminated after 31 October 2023. No water quality impact monitoring was undertaken during the reporting period.

              3) Construction phase CWD monitoring by small vessel line-transect survey supplemented by land-based theodolite tracking survey and passive acoustic monitoring was completed in December 2023. No CWD impact monitoring was undertaken during the reporting period.

 

Table 3.3: Statistics for Non-compliance, Complaints, Notifications of Summons and Prosecution

Reporting Period

Cumulative Statistics

 

Non-compliance

Complaints

Notifications of Summons

Prosecutions

This reporting period

0

3

0

0

From 28 December 2015 to end of the reporting period

0

76

2

2

 

4        Conclusion and Recommendation

In the second quarter of 2024, the EM&A programme has been implemented as planned, including 96 sets of air quality measurements, 52 sets of construction noise measurements, 6 complete sets of vessel line transect surveys for post-construction phase CWD monitoring, as well as environmental site inspections and waste monitoring for the Project’s construction works.

The key activities of the Project carried out in the reporting period are located in reclamation areas and existing airport island respectively. Works in the reclamation areas included drainage works, land improvement works, filling works, pavement works, superstructure works for Terminal 2 Concourse,  tunnel works for APM and BHS and associated works. Land-based works on existing airport island involved T2 expansion works, modification and tunnel works for APM and BHS, utilities works, road and drainage works, excavation works, and 132kV cable laying works.

Monitoring results of construction dust, construction noise, and construction waste did not trigger the corresponding Action and Limit Levels during the reporting period. No non-conformity was recorded for landscape & visual monitoring in the reporting period.

All water impact monitoring work has been completed, with results presented in the Annual EM&A Report for 2023 and to be included in the Final EM&A Report. Based on the analysis presented in Annual EM&A report for 2023, the post-construction phase water quality monitoring did not reveal significant changes of the water quality when comparing with baseline water quality monitoring, and it can be concluded that the marine works of the Project during construction phase did not cause deterioration in or adverse impacts on the marine water quality surrounding the Project site.

Post-construction phase CWD monitoring by vessel line transect survey were conducted following the same methodology as adopted in construction phase monitoring. A total of around 1,355 km of survey effort was collected from these surveys during the reporting period, with around 95.2% of the total survey effort being conducted under favourable weather condition (i.e. Beaufort Sea State 3 or below with favourable visibility) and a total of 35 sightings and with 101 dolphins were recorded during on-effort searches under such favourable weather condition.

Site inspections of the construction works to audit the implementation of proper environmental pollution control and mitigation measures for the Project were conducted by ET and IEC on a weekly and bi-weekly basis, respectively. Site inspection findings were recorded in the site inspection checklists and provided to the contractors to follow up.

In total of 79 HSF movements under the SkyPier Plan were audited in the reporting period. All HSFs were travelled through the SCZ with average speed under 15 knots, used diverted route and entered / left SCZ through gate access points in compliance with the SkyPier Plan. In summary, the ET and IEC audited the HSF movements against the SkyPier Plan and conducted follow up investigations or actions accordingly.

During the reporting period, ET conducted bi-weekly audit of the MSS to ensure the system recorded all deviation cases accurately and the contractors fully complied with the requirements of the MTRMP-CAV.

On the implementation of DEZ Plan, no dolphin observation station was deployed by the contractor for continuous monitoring of the DEZ.

In accordance with Condition 2.6 of EP, AAHK has assisted AFCD in taking forward the statutory procedures for the designation of the NLMP. A gazette notice regarding the approved map was published by the Government on 29 September 2023 with a Draft Designation Order and a relevant Executive Council paper was prepared. The NLMP will come into effect on 1 November 2024 and shall tie in with the commissioning of the 3RS.

The recommended environmental mitigation measures, as included in the EM&A programme, were effectively implemented during the reporting period. Also, the EM&A programme implemented by the ET has effectively monitored the construction activities and ensured the proper implementation of mitigation measures.


[1] The Manual is available on the Project’s dedicated website (accessible at: http://env.threerunwaysystem.com/en/index.html)