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

Construction Phase Quarterly EM&A Report No.33 (1 January to 31 March 2024)

May 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 2.15: Photos of the Existing Transplanted Trees Inspected 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 33rd 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 January 2024 to 31 March 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 included reclamation areas and existing airport island respectively. Works in the reclamation areas included rock armour laying works, land improvement works and filling works, pavement works, Terminal 2 Concourse superstructure works, 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 expansion works, modification and tunnel work for APM and BHS, utilities works, road and drainage works, demolition, piling, 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), audit of construction and associated vessels, and audit of implementation of Dolphin Exclusion Zone (DEZ) Plan, 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

 

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Installed automatic wheel washing facilities in series

Automatic drip irrigation system

Provision of water spray at the stockpiling area

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

1.     Three automatic wheel washing facilities were installed in series by the contractor to ensure the vehicle was washed thoroughly, and all dusty materials from its underneath and wheels were removed before leaving the construction site.

2.     Automatic drip irrigation system was provided by the contractor to maintain good health condition of the trees.

3.     Water spraying was provided at the stockpiling area for dust suppression purposes.

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 this reporting period

 

In the previous reporting period, a complaint regarding alleged environmental nuisance at Cheong Yip Road was received on 12 December 2023.

ET requested the relevant contractors to submit details concerning the complaint received and one of them replied they had concrete mixer trucks leaving 3RS construction site via Cheong Yip Road in which workers were assigned by the contractor to conduct road sweeping and road washing at the road. Subsequent inspections by the ET did not identify any environmental nuisances on Cheong Yip Road. The relevant contractor was reminded to continue and properly implement environmental mitigation measures when concrete mixer trucks leave the 3RS construction site via Cheong Yip Road. Hence, the case was considered closed.

In the previous reporting period, a complaint regarding alleged dust nuisance at South Perimeter Road was received on 18 December 2023.

ET requested the relevant contractors to provide information regarding the complaint and replies indicated dust suppression measures including automatic and manual wheel washing facilities, road washing and sweeping arrangements, and water spraying during breaking activities were implemented. During the ET’s inspections, no alleged nuisance was recorded at the concerned area. The relevant contractors were reminded to ensure vehicles are properly washed before leaving the 3RS construction site area and continue to implement dust mitigation measures and ensure no dust nuisance. Hence, the case was considered closed. 

A complaint regarding dust issue at 3RS construction site was received on 22 January 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 haul roads and works areas. Hence, the case was considered closed. 

A complaint regarding construction dust at Airport North Interchange and South Perimeter Road was received on 15 March 2024. 

The complaint was under investigation during the reporting period. Findings would be reported in the next Quarterly EM&A Report.

A complaint regarding noise issue at Cheong Tat Road was received on 15 March 2024.

The complaint was under investigation during the reporting period. Findings would be reported in the next Quarterly EM&A Report.

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 designation date (i.e. effective date of the NLMP) 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 33rd 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 January 2024 to 31 March 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

Endy Tse

6228 7768

 

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

Ms. Kimberly Wong

5542 1669

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

Project Engineer

Ivan Shek

9822 5836

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 rock armour laying works, land improvement works and filling works, pavement works, Terminal 2 Concourse superstructure works, tunnel work for APM and BHS and associated works. Land-based works on existing airport island involved Terminal 2 expansion works, modification and tunnel work for APM and BHS, utilities works, road and drainage works, demolition, piling, 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

Dolphin Exclusion Zone was implemented in January 2024.

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, environmental trainings and regular environmental management meetings were conducted during the reporting period which are summarised as below:

   Fifty-three 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 designation date (i.e. effective date of the NLMP) 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

Jan 2024

100%

100%

Feb 2024

100%

100%

Mar 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

Dec 2023

Sunny

Northwest to East

Jan 2024

Sunny to Cloudy

Northwest to East

Feb 2024

Cloudy

West to East

Mar 2024

Sunny to Cloudy

West 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

Jan 2024

100%

100%

100%

100%

Feb 2024

100%

100%

100%

100%

Mar 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

Dec 2023

Sunny to Cloudy

Jan 2024

Sunny to Overcast

Feb 2024

Sunny to Overcast

Mar 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

In the first quarter of 2023, the land formation works including seawall construction and all marine filling works were completed.  As a precautionary measure, construction phase water quality impact monitoring continued until the end of the rainy season. Subsequently, a proposal for terminating the general impact water quality monitoring during the construction phase was submitted to the EPD and received approval on 30 October 2023. The water quality impact monitoring was terminated after 31 October 2023. 

A post-construction phase water quality monitoring exercise was then carried out for four weeks according to Section 5.1.10.1 of the Updated EM&A Manual, in the same manner as the impact monitoring at all impact monitoring stations, sensitive receivers stations and control stations during construction phase, from 14 November 2023 to 9 December 2023. The comparison between the baseline, construction phase and post-construction phase monitoring results will be presented in the Annual EM&A report for 2023 and Final EM&A report.

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)

Jan 2024(3)

0

1,508

1,530

6,897

2,500

0

4,501

Feb 2024(3)

0

486

0

5,373

0

600

3,383

Mar 2024(3)

0

137

10,381

8,814

0

1,800

4,825

Total

      0

2,131

11,911

21,084

2,500

2,400

12,709

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 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.7.

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 January to March 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 1,353 km of survey effort was collected from these surveys, with around 92.9% 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 January to March 2024, there were a total of 21 sightings of CWD, with 75 dolphins sighted (Table 2.9). There were 20 sightings and 73 dolphins were recorded during on-effort searches under favourable weather condition.

When breaking down the sightings by survey areas, 18 sightings with a total of 68 dolphins and 2 sightings with a total of 6 dolphins were recorded in, WL and SWL respectively during the current reporting period. One sighting of one dolphin was recorded on AW transect within NWL survey area. No CWD was sighted in NEL survey area.

Compared with the previous quarter (i.e. October to December 2023), the total number of CWD sightings and the total number of the dolphins have decreased by 36% and 24% respectively. There was a notable reduction 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., January to March 2023), there were notable decrease in both the total number of sightings and the total number of dolphins by 51% and 55% respectively. In WL, there was a decrease in both the number of sightings and number of dolphins by 22% and 31% respectively. On the other hand, there were also significant decrease in both number of sightings and number of dolphins in SWL by 60% and 45% respectively. Moreover, there were significant decrease in both total number of sightings and total number of dolphins to 0 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

 

January to March 2023

October to December 2023

January to March 2024

NEL

0 (0)

0 (0)

0 (0)

NWL

13 (52)

       0 (0)

0 (0)

AW

2(4)

1 (3)

1 (1)

WL

23 (99)

24 (67)

18 (68)

SWL

5 (11)

8 (29)

2 (6)

Total

43 (166)

33 (99)

21 (75)

Note: Values in ( ) represent number of dolphins

The distribution of CWD sightings recorded from January to March 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 only two CWD sightings were recorded in waters between Fan Lau and Fan Lau Tung Wan. In NWL, the only sighting was recorded on the Airport West transect. 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 January to March 2024

Remarks: (1) Please note that there are 21 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 January to March 2024, the group size of CWD sightings ranged from one to 11 dolphins. The average group size of CWD was 3.57 dolphins per group, which is larger than that of the last quarter (3.00 dolphins per group). The average group size of CWD in this reporting quarter is slightly smaller than that of the same quarter of last year (3.86 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 one CWD sighting with large group size (i.e., 10 or more dolphins) recorded in WL near Yi O 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 21 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 January to March 2024, six sightings of CWD were recorded with foraging activities. Amongst them, one sighting was observed associated with operating gillnetter in WL.

Sightings with foraging activities recorded in the current reporting period was lower than that in the previous reporting period (i.e., 13 sightings involved foraging activities between October and December 2023). The number of CWD sightings with foraging activities in this reporting period was also significantly lower than that in the same quarter of last year (i.e., 16 sightings between January and March 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 January to March 2024, seven sightings of CWD were recorded with the presence of mother-and-unspotted juvenile pairs and/or mother-and-calf pair, which was higher than that recorded in the previous reporting quarter (i.e., five sightings between October and December 2023). 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 January to March 2023).

These seven sightings with the presence of mother-calf pairs recording during the reporting period were all recorded in WL 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 7 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 January and March 2024, a total number of 31 different CWD individuals were identified altogether for 55 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 31 different CWD individuals, 16 animals (i.e., SLMM003, SLMM007, SLMM014, SLMM037, SLMM052, WLMM001, WLMM007, WLMM029, WLMM056, WLMM068, WLMM079, WLMM114, WLMM147, WLMM159, WLMM162 and WLMM192) were sighted for more than once.

Three individuals including SLMM003, WLMM056 and WLMM114 were re-sighted in different survey areas during this reporting period. The most frequently re-sighted individuals in this reporting quarter were SLMM003 which was successfully identified for five times. The numbers of CWD individuals re-sighted more than once was higher than that of the last report reporting period from October to December 2023 while the number of identified individuals showed cross-area movement is in opposite trend (i.e. 12 and 5 CWD individuals respectively).

A summary of photo identification works is presented in Table 2.10. Representative photos of the 31 identified individuals and figures depicting the sighting locations of the aforementioned 3 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

NLMM027

15-Jan-24

1

AW

 

WLMM029

19-Feb-24

2

WL

NLMM081

15-Jan-24

3

WL

 

 

22-Mar-24

3

WL

SLMM002

15-Jan-24

8

WL

 

WLMM043

2-Feb-24

1

WL

SLMM003

15-Jan-24

8

WL

 

WLMM056

23-Jan-24

2

SWL

 

23-Jan-24

2

SWL

 

 

19-Feb-24

1

WL

 

 

3

SWL

 

WLMM058

2-Feb-24

1

WL

 

19-Feb-24

1

WL

 

WLMM067

15-Jan-24

2

WL

 

22-Mar-24

5

WL

 

WLMM068

15-Jan-24

3

WL

SLMM007

2-Feb-24

1

WL

 

 

2-Feb-24

1

WL

 

19-Feb-24

1

WL

 

WLMM071

2-Feb-24

1

WL

 

22-Mar-24

2

WL

 

WLMM073

15-Jan-24

6

WL

SLMM014

19-Feb-24

2

WL

 

WLMM079

2-Feb-24

3

WL

 

22-Mar-24

3

WL

 

 

19-Feb-24

1

WL

SLMM027

15-Jan-24

6

WL

 

WLMM109

15-Jan-24

6

WL

SLMM037

19-Feb-24

1

WL

 

WLMM114

15-Jan-24

8

WL

 

22-Mar-24

3

WL

 

 

23-Jan-24

2

SWL

SLMM052

15-Jan-24

4

WL

 

 

19-Feb-24

1

WL

 

 

6

WL

 

WLMM147

2-Feb-24

3

WL

 

2-Feb-24

3

WL

 

 

19-Feb-24

1

WL

 

19-Feb-24

1

WL

 

WLMM150

22-Mar-24

3

WL

SLMM060

22-Mar-24

4

WL

 

WLMM159

15-Jan-24

2

WL

SLMM073

22-Mar-24

2

WL

 

 

2-Feb-24

3

WL

WLMM001

15-Jan-24

4

WL

 

WLMM162

15-Jan-24

3

WL

 

2-Feb-24

3

WL

 

 

2-Feb-24

1

WL

WLMM007

15-Jan-24

4

WL

 

WLMM192

15-Jan-24

4

WL

 

 

6

WL

 

 

 

6

WL

WLMM027

2-Feb-24

1

WL

 

 

2-Feb-24

3

WL

WLMM028

15-Jan-24

6

WL

 

 

 

 

 

2.5.1.2           Site Audit for CWD-related Mitigation Measures

During the reporting period, a dolphin observation station and team of at least two dolphin observers was deployed by the contractors for continuous monitoring of the DEZ for armour rock laying works in accordance with the DEZ Plan. From the contractors’ DEZ monitoring records, no dolphin or other marine mammals were observed within or around the DEZ in this reporting period. The contractor’s records were also audited by the ET during site inspection.

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.    Three automatic wheel washing facilities were installed in series by the contractor ensure the vehicle was washed thoroughly, and all dusty materials from its underneath and wheels were removed before leaving the construction site.

2.     Automatic drip irrigation system was provided by the contractor to maintain good health condition of the trees.

3.     Water spraying was provided at the stockpiling area for dust suppression purposes.

A black hose on the ground

Description automatically generated

  

Installed automatic wheel washing facilities in series

Automatic drip irrigation system

Provision of water spray at the stockpiling area

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 Contracts 3508 and 3801. For CM10, the advanced hydroseeding works around taxiways and runways were partially completed and would resume in next phase. 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 March 2024 was 34. Compared to 37 retained trees reported in the previous reporting period, the change in number was due to the following reason:

·         3 nos. of trees under Contract 3801 were handed over to AAHK (-3 nos.).

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. Photos of the transplanted trees are presented in Table 2.15.

For OM7, the bi-monthly site inspections for 12-month establishment period were undertaken in February and March 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, 3801

 

 

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 advanced hydroseeding works around taxiways and runways were partially completed at this stage and would resume in next phase.

To be implemented

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

34

0

12

0

3801(2)

0

0

5

0

Grand Total

34

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  

(Dec 2023) 

Current 

Status  

(Mar 2024) 

Remarks 

Impact to Retained Tree Number 

CT1885

CT1886

CT1887

3801

Retain 

Retain

3 nos. of trees were handed over to AAHK in February 2024.

-  3 nos. 

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 are shown in Table 2.15.

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