Contents

Executive summary

1 Introduction

1.1 Background

1.2 Project Organisation

1.3 Environmental Status in the Reporting Period

2 Summary of EM&A Requirements and Mitigation Measures

2.1 Monitoring Requirements

2.2 Environmental Mitigation Measures

3 Summary of EM&A Results

3.1 Monitoring Data

3.2 Monitoring Exceedances

3.2.1 1-hour TSP Monitoring

3.2.2 24-hour TSP Monitoring

3.2.3 Construction Noise Monitoring

3.2.4 Landscape and Visual Monitoring

4 Waste Management

4.1 Zone s 2A, 2B & 2C (Contract No.: CC/2023/2B/095)

5 Environmental Non-conformance

6 Comments, Recommendations and Conclusion

6.1 Comments

6.2 Recommendations

6.3 Conclusion

Figure 1 Site Layout Plan and Monitoring Stations

Appendices

A. Project Organisation

B. Construction Programme

C. Environmental Mitigation Measures – Implementation Status

D. Meteorological Data Extracted from Hong Kong Observatory

E. Graphical Plots of the Monitoring Results

F. Waste Flow table

G. Cumulative Statistics on Complaints, Notifications of Summons and Successful Prosecutions

Executive summary

This Quarterly EM&A Report presents the monitoring works conducted at Zones 2A, 2B & 2C from 01 November 2025 to 3 1 January 202 6.

Exceedance of Action and Limit Levels

There was no breach of Action or Limit Levels for Air Quality (1-hour TSP and 24-hour TSP) and Noise in this reporting quarter.

Implementation of Mitigation Measures

Construction phase weekly site inspections were carried out to confirm the implementation measures undertaken by the Contractors in the reporting quarter. The status of implementation of mitigation measures during the reporting quarter is shown in Appendix C.

Landscape and visual impact inspections were conducted as part of the above-mentioned weekly site inspections during the reporting quarter. No adverse comment on landscape and visual aspects were made during these inspections.

Record of Complaints

1 environmental complaint was received during the reporting quarter.

Record of Notifications of Summons and Successful Prosecutions

No notifications of summons and successful prosecutions were recorded in the reporting quarter.

# 1 Introduction

## 1.1 Background

Apex Testing & Certification Limited (Apex) was commissioned to undertake the Environmental Team (ET) services (including environmental monitoring and audit (EM&A)) for the construction activities in Zone 2A, consisting of Foundation, Excavation and Lateral Support Works for Integrated Basement and Underground Road (Contract No.: GW/2020/05/073) ; Zone 2B & 2C consisting of Piling Works for Integrated Basement and Underground Road (Contract No.: CC/2020/2B/088); and Zones 2A, 2B & 2C consisting of Excavation and Lateral Support Works (Stages 1 & 2) for The Integrated Basement and Underground Road (Contract No.: CC/2023/2B/095) at WKCD. The construction works and EM&A programme for Zone 2A (Contract No.: GW/2020/05/073) was commenced on 03 October 2020 and handed over on 31 March 2023; while the construction works and EM&A programme for Zone 2B & 2C (Contract No.: CC/2020/2B/088) was commenced on 30 September 2021 and handed over on 05 July 2024. The construction works and EM&A programme for Zones 2A, 2B & 2C (Contract No.: CC/2023/2B/095) was commenced on 05 July 2024.

The overall works for the WKCD fall under two separate categories of Designated Project (DP) of the Environmental Impact Assessment Ordinance (EIAO), namely an “engineering feasibility study of urban development projects with a study area covering more than 20 ha or involving a total population of more than 100 000” (Item 1 of Schedule 3) and “an underpass more than 100m in length under the built areas” (Item A.9, Part I, Schedule 2). An Environmental Permit No. EP-453/2013/B (EP) was issued with respect to the “Underpass Road and Austin Road Flyover Serving the West Kowloon Cultural District” which specifically includes the abovementioned category of DP under Item A.9, Part I, Schedule 2 of the EIAO. The captioned projects include part of the abovementioned underpass road located within the site boundary falls under this same category.

The purpose of the development in Zone s 2A, 2B & 2C is to reserve for Integrated Basement (IB) and Underground Road (UR). The Zone 2A (Contract No.: GW/2020/05/073) construction activities involve the foundation, excavation and lateral support (ELS) works, road works, drainage diversion works, and temporary car parking. The Zone 2B & 2C (Contract No.: CC/2020/2B/088) construction activities involve the piling works. The Zones 2A, 2B & 2C (Contract No.: CC/2023/2B/095) construction activities involve the excavation and lateral support works.

The Quarterly EM&A Report is prepared in accordance with the Clause 3.4 of the Environmental Permit No. EP-453/2013/B. This Quarterly EM&A Report presents the monitoring works Zones 2A, 2B & 2C from 01 November 2025 to 3 1 January 202 6. The purpose of this report is to summarise the findings in the EM&A of the project over the reporting period.

## 1.2 Project Organisation

The organisation chart and lines of communication with respect to the on-site environmental management structure together with the contact information of the key personnel are shown in Appendix A.

## 1.3 Environmental Status in the Reporting Period

During the reporting period, construction works at Zones 2A, 2B & 2C (Contract No.: CC/2023/2B/095) undertaken include:

● Pipe Pile and King Post Works

● Jet Grouting Works

● D ouble D eck H oarding W orks

● T emporary S teel P latform

● ELS installation

The Construction Works Programme of the Project is provided in Appendix B. A layout plan of the Project is provided in Figure 1.

# 2 Summary of EM&A Requirements and Mitigation Measures

## 2.1 Monitoring Requirements

In accordance with the EM&A Manual, environmental parameters including air quality, noise, landscape and visual have been monitored. The specific parameters, monitoring frequency and the respective Action and Limit Levels are given in Table 2.1. Locations of the monitoring stations are provided in Figure 1.

Table 2.1: Summary of Impact EM&A Requirements

Parameters | Descriptions | Locations | Frequencies | Action Level | Limit Level
Air Quality | 24-Hour TSP | AM3 - The Victoria Towers Tower 1 | At least once every 6 days | 152.4 μg/m3 | 260 μg/m3
1-Hour TSP | AM3 - The Victoria Towers Tower 1 | At least 3 times every 6 days | 280.4 μg/m3 | 500 μg/m3
24-Hour TSP | AM4 - Canton Road Government Primary School | At least once every 6 days | 152.6 μg/m3 | 260 μg/m3
1-Hour TSP | AM4 - Canton Road Government Primary School | At least 3 times every 6 days | 278.5 μg/m3 | 500 μg/m3
24-Hour TSP | AM5 - Topside Developments at West Kowloon Terminus Site | At least once every 6 days | 141.1 μg/m3 | 260 μg/m3
1-Hour TSP | AM5 - Topside Developments at West Kowloon Terminus Site | At least 3 times every 6 days | 275.4 μg/m3 | 500 μg/m3
Noise | Leq, 30 minutes | NM2 - The Arch, Sun Tower | Weekly | When one documented complaint is received from any one of the sensitive receivers | 75 dB(A)
Leq, 30 minutes | NM3 - The Victoria Towers Tower 1 | Weekly | When one documented complaint is received from any one of the sensitive receivers | 75 dB(A)
Leq, 30 minutes | NM4 - Canton Road Government Primary School | Weekly | When one documented complaint is received from any one of the sensitive receivers | 70/65 dB(A)^
Leq, 30 minutes | NM5 -Development next to Austin Station | Weekly | When one documented complaint is received from any one of the sensitive receivers | 75 dB(A)
Landscape & Visual | Monitor implementation of proposed mitigation measures during the construction stage | As described in Table 9.1 and 9.2 of the EM&A Manual | Bi-weekly | N/A | N/A

Note:

^70 dB(A) for schools and 65 dB(A) during school examination periods.

The EM&A programme for the Project require 5 air monitoring stations and 5 noise quality monitoring stations located closest to the Project area. With regard to the monitoring activities at M+ Museum and the Lyric Complex, three monitoring stations had been considered, including AM1, AM2 for air monitoring, and NM1 for noise monitoring. In the context of the construction activities in Zone 2A and Zone 2B & 2C, all other monitoring locations including AM3, AM4, and AM5 for air monitoring; and NM2, NM3, NM4 and NM5 for noise monitoring, have been taken into account. However, access to all these originally designated monitoring stations was declined. Therefore, alternative monitoring stations was identified and proposed.

With regard to air monitoring, alternative monitoring locations (AM3A, AM4A, and AM5A) were identified at ground floor at the Northeast corner of West Kowloon Station’s station box, at ground floor at the Southeast corner of West Kowloon Station’s station box, and at ground floor at the North of West Kowloon Station’s station box respectively. AM3A, AM4A, and AM5A were set in same direction to the area of major construction site activities in Zone 2A. These alternative air monitoring locations (AM3A, AM4A, and AM5A) were approved by EPD on 29 September 2020.

For noise monitoring, alternative noise monitoring location (NM2A) was identified at the ground floor in front of The Arch - Sun Tower, which is at the same location as stated in the EM&A Manual for consistency. This alternative noise monitoring location was approved by EPD on 29 September 2020. Other alternative noise monitoring locations (NM3A, NM4A, and NM5A) were identified at the ground floor in front of the Xiqu Centre, at the ground floor next to Tsim Sha Tsui Fire Station, and at the Pedestrian road (ground floor) outside West Kowloon Station respectively. NM3A, NM4A and NM5A were set closer to the construction site boundary with more direct line sight to the major site activities and higher exposure to the construction noise with no disturbance to the premises’ occupants during noise monitoring activities. These alternative noise monitoring locations (NM3A, NM4A, and NM5A) were approved by EPD on 29 September 2020.

Therefore, 3 air quality monitoring stations and 4 noise impact monitoring station were confirmed for the impact monitoring for construction activities in Zone 2A and Zone 2B & 2C.

## 2.2 Environmental Mitigation Measures

Environmental mitigation measures have been recommended in the EM&A Manual. Summary of implementation status of the environmental mitigation measures is provided in Appendix C.

# 3 Summary of EM&A Results

## 3.1 Monitoring Data

In accordance with the EM&A Manual, impact monitoring has been conducted in the reporting quarter. Meteorological data for the reporting quarter have been extracted from Hong Kong Observatory and presented in Appendix D. Monitoring data with graphical presentation for the reporting quarter are shown in Appendix E. A summary on the monitoring results is presented in Table 3.1.

Table 3.1: Summary of Monitoring Data

Parameter | Monitoring Location | Minimum | Maximum | Average
Air Quality |  |  |  |
1 hour TSP | AM3A | 35 | 70 | 46
1 hour TSP | AM4A | 32 | 66 | 47
1 hour TSP | AM5A | 32 | 70 | 47
24 hour TSP | AM3A | 34 | 64 | 44
24 hour TSP | AM4A | 34 | 60 | 45
24 hour TSP | AM5A | 34 | 63 | 44
Construction Noise |  |  |  |
Leq(30min) | NM2A | 62 | 63 | 63
Leq(30min) | NM3A | 60 | 61 | 61
Leq(30min) | NM4A | 58 | 59 | 58
Leq(30min) | NM5A | 63 | 64 | 64

## 3.2 Monitoring Exceedances

Summary of the exceedances in the reporting quarter is tabulated in Table 3.2.

Table 3.2: Summary of Exceedances

Monitoring Station | Parameter | No. of Exceedance | Action Taken
Action Level | Limit Level
Air Quality |  |  |  |
AM3A | 1 hour TSP | 0 | 0 | N/A
24 hour TSP | 0 | 0 | N/A
AM4A | 1 hour TSP | 0 | 0 | N/A
24 hour TSP | 0 | 0 | N/A
AM5A | 1 hour TSP | 0 | 0 | N/A
24 hour TSP | 0 | 0 | N/A
Construction Noise |  |  |  |
NM2A | Leq(30min) | 0 | 0 | N/A
NM3A | Leq(30min) | 0 | 0 | N/A
NM4A | Leq(30min) | 0 | 0 | N/A
NM5A | Leq(30min) | 0 | 0 | N/A

### 3.2.1 1-hour TSP Monitoring

All 1-hour TSP monitoring was conducted as scheduled in the reporting quarter. No Action/ Limit Level exceedance of 1-hour TSP for Air Quality was recorded.

### 3.2.2 24-hour TSP Monitoring

All 24-hour TSP monitoring was conducted as scheduled in the reporting quarter. No Action/ Limit Level exceedance of 24-hour TSP for Air Quality was recorded.

### 3.2.3 Construction Noise Monitoring

All construction noise monitoring was conducted as scheduled in the reporting quarter. No Action/ Limit Level exceedance of Noise was recorded in the reporting quarter.

### 3.2.4 Landscape and Visual Monitoring

All landscape and visual impact inspections were conducted as scheduled in the reporting quarter. No adverse comment on landscape and visual aspects were recorded.

# 4 Waste Management

## 4.1 Zone s 2A, 2B & 2C (Contract No.: CC/2023/2B/095)

As advised by the Zones 2A, 2B & 2C Contractor, 68846.68 tonne and 0.0 tonne of inert C&D material were disposed of as public fill to Tseung Kwan O Area 137 and Tuen Mun Area 38 in the reporting quarter, while 311.94 tonne of general refuse were disposed of at SENT and WENT landfill. 217.28 tonne of metals, 0.0 tonne of paper/cardboard packaging, 0.0 tonne of plastics and 0.0 tonne of timber was collected by recycling contractors in the reporting quarter. 0.0 tonne of inert C&D material were reused on site. 0.0 tonne of inert C&D material was imported for reuse at site and 29467.54 tonne of inert C&D material were reused in other projects. 136.68 tonne of inert C&D material was disposed to sorting facility and 1.4 tonne of chemical waste was collected by licensed contractors in the reporting quarter.

The actual amounts of different types of waste generated by the activities of construction works at Zone s 2A, 2B & 2C in the reporting quarter are shown in Appendix F.

# 5 Environmental Non-conformance

There was no breach of Action or Limit Levels for Air Quality (1-hour TSP and 24-hour TSP) and Noise in the reporting quarter.

One complaint w as received in the reporting quarter. No n otifications of summons and successful prosecutions were received in the reporting quarter.

On 27 January 2026 (Tuesday), the site received a complaint from the Harbourside Owners Committee through WKCDA regarding severe dust pollution caused by ongoing construction work in the West Kowloon Cultural District. The Committee has expressed serious concerns about the negative impact this dust is having on the residents' living environment and health. Further to the complaint email received on 27 January 2026, investigation was carried out at WKCD Zone 2A, 2B & 2C site. According to the message from the complaint, the construction site is generating substantial amounts of dust, which is continuously spreading to residential complex, thereby deteriorating the living environment and posing health risks. During the inspection, construction dust generated was considered to be unavoidable due to the construction works, especially for the excavation and concrete breaking works, and site logistic. Meanwhile, the condition of the dust suppression measures were checked. On-site dust suppression measures were found in place and functioning. The dust suppression measures were believed to significantly reduce the dust emission to surrounding.

To minimize the environmental impacts to the surrounding, number of mitigation measures were implemented. After notification of the complaint, immediate actions have been taken on site to improve the dust control for vehicles. It was concluded that the concerned environmental impact might be due to the construction works and transportation in the site. On-site mitigation measures have already been implemented and maintained on site and prompt actions have been taken. We will keep maintain good practice on site, and strengthen the implementation of mitigation measures to reduce impacts to the nearby neighbors.

The cumulative statistics on complaints, notifications of summons and successful prosecutions were provided in Appendix G.

# 6 Comments, Recommendations and Conclusion

## 6.1 C omments

Based on the observations made during site audits and landscape inspections, and construction dust and noise monitoring results, no non-compliances and exceedances of air quality and construction noise were recorded in the reporting quarter.

## 6.2 Recommendations

Reviewing the implementation of the recommended mitigation measures in the EM&A Manual, it was observed that they were effective and efficient in controlling the potential impacts due to construction of the project during the reporting period. Review of the effectiveness and efficiency of the EM&A programme will continue, and recommendations will be provided to remediate any potential impacts due to the project and to improve the EM&A programme if deficiencies of the existing EM&A programme are identified.

## 6.3 Conclusion

The EM&A programme as recommended in the EM&A Manual has been undertaken. The construction works and EM&A programme for Zone 2A (Contract No.: GW/2020/05/073) was commenced on 03 October 2020 and handed over on 31 March 2023; while the construction works and EM&A programme for Zone 2B & 2C (Contract No.: CC/2020/2B/088) was commenced on 30 September 2021 and handed over on 05 July 2024. The construction works and EM&A programme for Zones 2A, 2B & 2C (Contract No.: CC/2023/2B/095) was commenced on 05 July 2024.

Monitoring of air quality and noise with respect to the Project is underway. In particular, the 1-hour TSP, 24-hour TSP and noise level (as Leq, 30 minutes) under monitoring have been checked against established Action and Limit Levels. There was no breach of Action or Limit Levels for Air Quality (1-hour TSP and 24-hour TSP) and Noise in this reporting quarter.

One complaint w as received in the reporting quarter. No notifications of summons and successful prosecutions were received during the reporting quarter.

Weekly construction phase site inspections and bi-weekly landscape and visual impact inspections were conducted during the reporting quarter as required. It was observed that the Contractor had implemented all possible and feasible mitigation measures to mitigate the potential environmental impacts during construction phase works.