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 Site Audit for CWD-related Mitigation Measures

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 Station

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 Station

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: Landscape and Visual – Construction Phase Audit Summary

Table 2.10: Summary of the Number of Retained, Transplanted and To-be-transplanted Trees in the Reporting Period

Table 2.11: Summary of the Transplanted Trees Updated in the Reporting Period

Table 3.1: Statistics for Valid Exceedances for the Environmental Monitoring

Table 3.2: Statistics for Non-compliance, Complaints, Notifications of Summons and Prosecution

Figures

Figure 1.1	Locations of Key Construction Activities (after commissioning of 3RS)
Figure 2.1	Locations of Air and Noise Monitoring Stations and Chek Lap Kok Wind Station
Figure 2.2	Summary of SkyPier High Speed Ferried Monitoring Results

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 Identification 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
HDD	Horizontal Directional Drilling
HKBCF	Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities
HKIA	Hong Kong International Airport
HSFs	High Speed Ferries
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
MTRMP-CAV	Updated Marine Travel Routes and Management Plan for Construction and Associated Vessel
NEL	Northeast Lantau
NLMP	North Lantau Marine Park
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 41^st 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 2026 to 31 March 2026.

The new North Runway was commissioned in November 2022. Following the completion of reconfiguration works on the Centre Runway, the Three-Runway System (3RS) was commissioned on 28 November 2024.

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 concourse superstructure works, pavement works, tunnel works for Automated People Mover (APM) and Baggage Handling System (BHS) and associated works. Meanwhile, works on the existing airport island involved T2 expansion works, modification and tunnel works for APM and BHS, utilities works, road and drainage 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	45
Noise monitoring	12

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), audits of SkyPier High Speed Ferries (HSFs), and audits of construction and associated vessels and audits of implementation of Dolphin Exclusion Zone (DEZ) Plan were conducted in the reporting period. Based on the information including ET’s observations, 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.

Snapshots of Good Environmental Practices in the Reporting Period

Provision of oil spillage drill training for site personnel	Provision of water spraying along main haul road	Provision of wheel washing at site exit

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

1. Provision of oil spillage drill training for site personnel by the contractor.

2. Provision of water spraying along main haul road for dust suppression.

3. Provision of wheel washing for construction vehicles leaving the site area.

Summary Findings of the EM&A Programme

Following the full commissioning of the 3RS, the scope of active construction activities has been significantly reduced. A proposal to scale down the air quality and construction noise impact monitoring was submitted to EPD and subsequently approved by EPD on 31 December 2025. Starting from January 2026, monitoring stations AR1A and NM1A have been retained to continue air quality and construction noise impact monitoring, respectively.

The monitoring works for construction dust, construction noise, construction waste and landscape & visual 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-conformities were 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	√		A complaint and a subsequent follow-up complaint regarding dust nuisance were received on 6 March and 13 March 2026 respectively.	The ET investigated the case and identified the concerned area as Area 3408/9a. The relevant contractor reviewed and updated the dust suppression plan to strengthen dust control measures. No dust related issues were observed during ET’s inspections. The case is considered closed.
			A complaint regarding construction noise from breaking works near the bus terminus was received on 23 March 2026. A similar complaint was subsequently received from EPD on 9 April 2026.	The ET investigated the case and identified the concerned area as Area 22 near the bus terminus, where the underground utility works were undertaken. Site inspections were carried out and it was observed site barriers and hoardings were properly installed. The relevant contractor would keep reviewing their works schedule and construction works status in the concerned area. The ET would continue to monitor the relevant contractor’s performance. The case is 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.

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 (T2), 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 41^st 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 2026 to 31 March 2026.

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 Leader	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 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 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	Terry Chow	6031 0887
	Environmental Officer	Federick Wong	9842 2703

Terminal 2 Concourse and Apron Works:

Party	Position	Name	Telephone
Contract 3404 Integrated Airport Control System (Shun Hing Systems Integration Co., Ltd.)	Project Manager	Andy Ng	9102 2739
	Environmental Office	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	Ivan Mak	9422 4805

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 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	Zhang Jinyuan	6708 0506
	Environmental Representative	Karis Lam	6084 9745
Contract 3805 New Airport District Police Operational Base (Chinney Construction Co., Ltd.)	Project Manager	Peter Li	9628 0768
	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 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
	Works Supervisor	Bosco Leung	6370 0780

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

1.5 Summary of Construction Works

The new North Runway was commissioned in November 2022. Following the completion of reconfiguration works on the Centre Runway, the 3RS was commissioned on 28 November 2024.

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 concourse superstructure works, pavement works, tunnel works for Automated People Mover (APM) and Baggage Handling System (BHS) and associated works. Meanwhile, works on the existing airport island involved T2 expansion works, modification and tunnel works for APM and BHS, utilities works, road and drainage works.

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 is 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.	Details of the routine H2S monitoring system for sewerage systems of 3RS was approved by EPD. The H2S monitoring is on-going.
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 Horizontal Directional Drilling (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 completed in December 2024.
Operation Phase Monitoring	12 months of operation phase CWD monitoring upon full implementation of North Lantau Marine Park; and Vessel line transect surveys: Two full surveys per month.	The operation phase CWD monitoring was completed in December 2025.
Operation Phase Audit	SkyPier High Speed Ferries (HSF) implementation measures: Once every three months for a period of one year upon operation of 3RS. Spill Response Plan implementation measures: Once every 6 months for a period of one year upon operation of 3RS.	Quarterly audits were conducted for one year following 3RS operation. The 4^th audit was completed in November 2025, thereby completing the one-year audit programme. Half-yearly audits were conducted for one year following 3RS operation. The 2^nd audit was completed in November 2025, thereby completing the one-year audit programme.
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 MMWP implementation measures were conducted during the reporting period.
Dolphin Exclusion Zone (DEZ) Plan implementation measures	Monitor and check	DEZ Plan implementation measures were conducted in January and February 2026.
SkyPier High Speed Ferries (HSFs) 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	All monitoring required under Silt Curtain Deployment Plan was completed on 17 March 2025.
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 and landscape & visual 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:

· Twenty-nine 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.

2 Environmental Monitoring and Auditing

2.1 Air Quality Monitoring

Following the full commissioning of the 3RS, the scope of active construction activities has been significantly reduced. A proposal to scale down the air quality monitoring was submitted to EPD and subsequently approved by EPD on 31 December 2025. Starting from January 2026, monitoring station AR2 was terminated and only AR1A has been retained to continue air quality monitoring.

Impact air quality monitoring of 1-hour Total Suspended Particulates (TSP) was conducted three times every six days at the representative monitoring station AR1A in the vicinity of air sensitive receivers in Tung Chung in accordance with the Manual. Table 2.1 describes the details of the monitoring station. Figure 2.1 shows the location of the monitoring station.

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 Station

Monitoring Station	Location	Action Level (mg/m^3)	Limit Level (mg/m^3)
AR1A	Man Tung Road Park	306	500

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
Jan 2026	100%
Feb 2026	100%
Mar 2026	100%
Overall	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 the corresponding Action and Limit Levels at AR1A in the reporting period.

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

Table 2.3: General Meteorological Condition during Impact Air Quality Monitoring

	Weather	Dominant Wind Direction
Dec 2025	Sunny	Northwest to North
Jan 2026	Sunny to Overcast	Northwest to North
Feb 2026	Sunny to Overcast	West to Northwest
Mar 2026	Sunny to Overcast	North to Northwest

2.1.3 Conclusion

No dust emission sources were observed at the monitoring station 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

Following the full commissioning of the 3RS, the scope of active construction activities has been significantly reduced. A proposal to scale down the construction noise impact monitoring was submitted to EPD and subsequently approved by EPD on 31 December 2025. Starting from January 2026, monitoring stations NM2, NM3A, NM4, NM5 and NM6 were terminated and only NM1A has been retained to continue construction noise impact monitoring.

Impact noise monitoring in the form of 30-minute measurements of L_eq, L₁₀, and L₉₀ levels was conducted once per week between 0700 and 1900 on normal weekdays at the representative monitoring station NM1A in the vicinity of noise sensitive receivers in Tung Chung in accordance with the Manual. Table 2.4 describes the details of the monitoring station. Figure 2.1 shows the location of the monitoring station.

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 Station

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)

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
Jan 2026	100%
Feb 2026	100%
Mar 2026	100%
Overall	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 are summarised in Table 2.6.

Table 2.6: General Meteorological Condition during Impact Noise Monitoring

	Weather
Dec 2025	Sunny
Jan 2026	Sunny to Overcast
Feb 2026	Sunny to Overcast
Mar 2026	Sunny to Overcast

2.2.3 Conclusion

As the construction activities were far away from the monitoring station, major source of noise dominating the monitoring station NM1A observed during the construction noise impact monitoring was traffic noise near NM1A during this reporting period. It is considered that the monitoring work during the reporting period was effective and there was no adverse impact attributable to the Project activities.

2.3 Water Quality Monitoring

All water impact monitoring and post-construction phase water quality monitoring have been completed, with results presented in the Annual EM&A Report for 2023.  The analysis in the report indicates that the post-construction phase water quality monitoring did not reveal significant changes compared to the baseline levels.  Therefore, 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. The 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.

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

Table 2.8: Construction Waste Statistics

	C&D^(1) Material Stockpiled for Reuse or Recycle (m^3)	C&D Material Reused in the Project (m^3)	C&D Material Reused in other Projects (m^3)	C&D Material Transferred to Public Fill^(2)(m^3)	Chemical Waste (kg)	Chemical Waste (l)	General Refuse (tonne)
Previous reporting period
Jul 2025^(3)	936	756	0	4,788	0	0	3,533
Aug 2025^(3)	671	4,585	0	6,283	0	2,000	3,217
Sep 2025^(3)	856	7,412	0	4,461	0	0	3,675
Oct 2025	798	1,326	0	4,591	0	0	3,395
Nov 2025^(3)	1,492	65	0	3,834	0	0	2,739
Dec 2025^(3)	839	0	0	4,642	0	0	2,511
Total	5,592	14,144	0	28,599	0	2,000	19,070
This reporting period
Jan 2026	0	0	0	5,648	0	0	2,263
Feb 2026	0	0	0	2,744	0	0	1,650
Mar 2026	0	0	0	2,511	300	6,080	2,432
Total	0	0	0	10,903	300	6,080	6,345
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

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.9.

2.5 Chinese White Dolphin Monitoring

All Chinese White Dolphin monitoring work required under Section 10.2.3 of the Updated EM&A Manual has been completed. Results of baseline monitoring conducted between December 2015 and July 2016, and the results of the construction phase impact monitoring conducted between August and December 2016, were presented in the Annual EM&A Reports No. 1. Annual construction phase impact monitoring results for the period from January 2017 to December 2023 were documented in Annual EM&A Reports No. 2 to No. 8. Post-construction phase monitoring results for January to December 2024 were presented in Annual EM&A Report No. 9. Operation phase monitoring results for January to December 2025 will be reported in the upcoming Annual EM&A Report No. 10. A consolidated summary of all CWD monitoring conducted from December 2015 to December 2025 will be included in the Final EM&A Report.

2.5.1 Site Audit for CWD-related Mitigation Measures

During reporting period, one dolphin observation station and a team of at least two dolphin observers were deployed by the contractor in January and February 2026 to continuously monitor the DEZ for rock armour laying works in accordance with the DEZ Plan. From the contractor’s records, no dolphins or other marine mammals were observed. The contractor’s records were also audited by ET during the site inspection. During this reporting period, no training session were provided by the ET for the proposed dolphin observers.

The construction vessel management are presented in Section 2.8.

According to Section 10.6.2.2 of the Updated EM&A Manual, audits of HSF implementation measures and Spill Response Plan implementation measures were conducted once every three months and every six months respectively for one year upon operation of 3RS. The one-year audit cycle for both measures has been completed and no specific findings were identified throughout the audit period.  

2.6 Environmental Site Inspection

Site inspections of the construction works were conducted by ET and IEC on a weekly and bi-weekly basis, respectively, to audit the implementation of proper environmental pollution control and mitigation measures for the Project. 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 served as a direct mechanism to reinforce the specified environmental protection requirements and pollution control measures at 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 records, maintenance records of environmental equipment, and relevant environmental permits 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. Provision of oil spillage drill training for site personnel by the contractor.

2. Provision of water spraying along main haul road for dust suppression.

3. Provision of wheel washing for construction vehicles leaving the site area.

Provision of oil spillage drill for training site personnel	Provision of water spraying along main haul road	Provision of wheel washing at site exit

Besides, advice was given when necessary to ensure the construction workforces were familiar with relevant procedures, and to maintain good environmental performance on site. Regular toolbox talks on environmental issues were organised for the construction workforces 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 2.9 For trees which were managed under the Project during the reporting period, relevant measures (i.e., CM1 – CM9) were implemented by Contract 3508 and 132kV cable. The total number of retained trees, transplanted trees and to-be-transplanted trees under the management of Project are summarized in Table 2.10.

The total number of retained trees of the Project as of March 2026 was 21. Compared to 66 retained trees reported in the previous reporting quarter, the change in number was due to the following reason:

· 1 nos. of retained tree from 132kV cable works project were dead and removed.

· 44 nos. of retained trees from 132kV cable works project were handed over to AAHK.

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 2.11.

During the reporting period, compensatory tree monitoring was carried out. Bi-monthly site inspections for 12-month establishment period were conducted in January and February 2026, and an annual site inspection for long-term management period were conducted in January 2026.

Table 2.9: Landscape and Visual – Construction Phase Audit Summary

Landscape and Visual Mitigation Measures during Construction	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 was 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 was observed and checked by the ET weekly during construction period.	3508, 132kV Cable
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 was 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.	-
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. Subsequently, the trees were monitored annually throughout the 10-year long-term management period, succeeding the establishment period for each batch of compensatory planting.	AAHK

Note:

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

Table 2.10: Summary of the Number of Retained, Transplanted and To-be-transplanted Trees in the Reporting Period

Contract No. / Works	Retained (nos.)	Transplanted (nos.)		To-be-transplanted (nos.)
		Establishment Period	Maintenance Period
3503	0	0	9^(1)	0
3508	21^(2)	0	12	0
3801	0	0	5 ^(3)	0
132kV Cable	0^(4)(5)	0	0	0
Grand Total	21	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, were handed over to AAHK in February 2022.

(2) The 3 retained trees including T813, T833 & T834 were handed over to AAHK in September 2025.

(3) Contract 3801 was completed and the 5 transplanted trees, including CT276, CT1253, CT1194, CT1794 and CT1795, were handed over to other management agencies. Details of the management agency are presented in Table 2.11.

(4) One retained tree (T021) was dead and removed.

(5) The 44 retained trees, including (Section 5) T001, T002, T004, T007, T013, T014, T016, T017, T019, T020, T031, T045 to T048, T055, T056, T061, T065, T066, T068, T069, T072, T075, T083, T084, T087, T089, T091, T094, T098, T103, T104, T107, T112, T113, T126, T134, T135, T140, T142, T146 & T148, and (Section 6) T136 were handed over to AAHK in March 2026.

Table 2.11: 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	Establishment Period was completed. Next inspection will be conducted in February 2027. Photos of the last inspection in February 2026 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No. 122.
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 were 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	Establishment Period was completed. Next inspection will be conducted in December 2026. Photos of the last inspection in December 2025 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No. 120.
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	Establishment Period was completed. Next inspection will be conducted in July 2026. Photos of the last inspection in July 2025 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No.115.
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	Establishment Period was completed. 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 Filling Station.
CT1794	3 May 2018	Long Term Management period Jun 2019 – May 2028	AsiaWorld-Expo	Establishment Period was completed. 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	Establishment Period was completed. 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 is 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.

During the reporting period, SkyPier HSF services to and from Zhuhai remained suspended. Accordingly, no SkyPier HSFs were recorded travelling between HKIA SkyPier and Zhuhai. A total of 12 ferry movements between HKIA SkyPier and Macau were audited. The average speed of the HSFs travelling through the Speed Control Zone (SCZ) ranged from 8.4 to 13.7 knots. All SkyPier 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. A summary of the SkyPier Plan monitoring results is presented in Figure 2.2.

Figure 2.2: Summary of SkyPier High Speed Ferries Monitoring Results

2.8 Audit of Construction and Associated Vessels

The updated Marine Travel Routes and Management Plan for Construction and Associated Vessels (MTPMP-CAV) was approved by EPD on 16 May 2025 under EP Condition 2.9.

Following its implementation, the ET audited construction and associated vessels activities based on the marine travel routes records submitted by the contractors, ensuring compliance with the MTRMP-CAV requirements.

To support effective vessel management, the contactors continued to submit 3-month rolling vessel plans for construction vessel activities to AAHK in order to help maintain the number of construction vessels at a practicable minimum. The IEC also carried out compliance audits as part of the EM&A programme.

During the reporting period, the ET audited the marine travel routes records submitted by contractors. No deviation cases were identified and all relevant contractors were reminded to comply with the MTRMP-CAV requirements.

No skipper training workshops were held by the ET and contractor’s Environmental Officer.

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

A complaint and a subsequent follow-up complaint were received on 6 March 2026 and 13 March 2026 respectively, concerning dust nuisance at 3RS construction site. In accordance with the Project’s Manual and Complaint Management Plan, the ET initiated an investigation and identified the concerned area as Area 3408/9a. The relevant contractor reported that no construction activities were carried out within the concerned area from September 2025 to February 2026. Therefore, water spraying frequency was increased to cover the concerned haul road. The ET conducted site inspections and did not observe any dust related issues. The contractor was reminded to continue reviewing and updating dust suppression plan to strengthen dust control measures along the haul road at Area 3408/9a. Based on the findings, the complaint case is considered resolved and closed.

Another complaint was received on 23 March 2026 concerning construction noise from suspected breaking works near Airport (Ground Transportation Centre) Bus Terminus. A similar complaint was subsequently received from EPD on 9 April 2026.  In accordance with the Project’s Manual and Complaint Management Plan, the ET initiated an investigation and identified the concerned area as Area 22 near the bus terminus, where underground utility works were undertaken. The ET conducted site inspections and observed site barriers and hoarding were properly installed. The relevant contractor was reminded to keep reviewing their works schedule and construction works status in the concerned area. The ET would continue to monitor the relevant contractor’s performance and remind them to minimize the noise impacts to nearby pedestrians from the concerned works area. Based on the findings, the complaint case is considered 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 3.1 and Table 3.2.

Table 3.1: 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 3.2: 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	2	0	0
From 28 December 2015 to end of the reporting period	0	85	2	2

4 Conclusion and Recommendation

The new North Runway was commissioned in November 2022. Following the completion of reconfiguration works on the Centre Runway, the 3RS was commissioned on 28 November 2024.

In the first quarter of 2026, the EM&A programme has been implemented as planned, including construction air quality, construction noise, and waste monitoring, as well as environmental site inspections.

Key project activities included concourse superstructure, and tunnel works for APM and BHS in reclamation areas, and T2 expansion, utilities, road and drainage works on the existing airport island.

During the reporting period, monitoring results showed no exceedances in construction dust, construction noise, and construction waste and no non-conformities in landscape & visual monitoring. All water impact monitoring and post-construction phase water quality monitoring have been completed. All CWD construction phase impact monitoring, post-construction phase and operation phase monitoring have been completed.

Following the full commissioning of the 3RS, the scope of active construction activities has been significantly reduced. A proposal to scale down the air quality and construction noise impact monitoring was submitted to EPD and subsequently approved by EPD on 31 December 2025. Starting from January 2026, monitoring stations AR1A and NM1A have been retained to continue air quality and construction noise impact monitoring, respectively.

Regular site inspections were conducted to ensure implementation of appropriate environmental pollution control and mitigation measures. Findings from these inspections were recorded in the site inspection checklists and issued to the contractors for their action. No SkyPier HSFs were recorded travelling between HKIA SkyPier and Zhuhai. A total of 12 ferry movements between HKIA SkyPier and Macau were audited. All HSFs travelled through the SCZ were in full compliance with the SkyPier Plan. Audits of the marine travel routes records were conducted, ensuring the contractors fully complied with the requirements of the MTRMP-CAV.

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

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