Table of Contents Page

1.2 Report Structure. 5

2......... Project Information. 6

2.1 Background. 6

2.2 Site Description. 6

2.3 Construction Programme and Activities. 7

2.4 Project Organization. 8

2.5 Status of Environmental Licences, Notification and Permits. 9

3......... Environmental Monitoring Requirements. 10

3.1 Construction Dust Monitoring. 10

3.2 Construction Noise Monitoring. 11

3.3 Landscape and Visual 12

4......... Implementation Status of Environmental Mitigation Measures. 12

5......... Monitoring Results. 13

5.1 Construction Dust Monitoring. 13

5.2 Regular Construction Noise Monitoring. 13

5.3 Waste Management 14

5.4 Landscape and Visual 14

6......... ENVIRONMENTAL SITE INSPECTION AND AUDIT. 15

7......... Environmental Non-conformance. 16

7.1 Summary of Monitoring Exceedances. 16

7.2 Summary of Environmental Non-Compliance. 16

7.3 Summary of Environmental Complaints. 16

7.4 Summary of Environmental Summon and Successful Prosecutions. 16

8......... FUTURE KEY ISSUES. 17

8.1 Construction Programme for the Next Three Months. 17

8.2 Key Issues for the Coming Month. 17

8.3 Monitoring Schedule for the Coming Month. 17

9......... ConclusionS AND RECOMMENDATIONS. 18

9.1 Conclusions. 18

9.2 Recommendations. 18

List of Tables

Table 2.1......... Construction Activities in the reporting month. 7

Table 2.2......... Contact Information of Key Personnel 8

Table 2.3......... Status of Environmental Licenses, Notifications and Permits. 9

Table 3.2 ........ Location of Construction Dust Monitoring Station. 10

Table 3.3 ........ Noise Monitoring Parameters, Frequency and Duration. 11

Table 3.5 ........ Noise Monitoring Stations during Construction Phase. 11

Table 4.1......... Status of Required Submission under Environmental Permit 12

Table 6.1 ........ Observations and Recommendations of Site Audit 15

Table 8.1......... Construction Activities in the coming month. 17

List of Figures

Figure 1.1	Site Layout Plan
Figure 3.1	Location of Air Quality Monitoring Station
Figure 3.2	Locations of Noise Monitoring Station

List of Appendices

Appendix A	Construction Programme
Appendix B	Project Organization Structure
Appendix C	Implementation Schedule of Environmental Mitigation Measures
Appendix D	Summary of Action and Limit Levels
Appendix E	Event and Action Plan
Appendix F	Cumulative Statistics on Complaints, Notification of Summons and Successful Prosecutions
Appendix G	Monthly Summary Waste Flow Table

EXECUTIVE SUMMARY

Central Kowloon Route – Kai Tak West (CKR-KTW; Contract No. HY/2014/07) (hereafter called “the Project”) covers part of the construction of the Central Kowloon Route (CKR).

The Project comprises the follow works:

· 50x30m access shaft with noise enclosure at Ma Tau Kok (MTK);

· 100m long cut-and-cover (C&C) tunnel at MTK;

· Demolition and re-provisioning of MTK Public Pier;

· 160m long underwater tunnel (UWT) (Stage 1);

· 210m long UWT (Stage 2);

· 60m long C&C tunnel at Kai Tak;

· 130m long depressed road and 200m long underpass at Kai Tak;

· 390m long underground tunnel ventilation audit at Kai Tak;

· Seawall demolition and construction of new landing steps; and

· Barging Point enclosure and conveyor system.

The EM&A programme commenced on 4 April 2018.The impact EM&A for the Project includes air quality and noise monitoring. The EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) and construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025.

All construction works of Contract No. HY/2014/07 Central Kowloon Route – Kai Tak West (FEP-01/457/2013/C) are substantially completed in September 2025. The proposal of termination of the EM&A Programme under FEP-01/457/2013/C was submitted on 28 November 2025.

EPD has approved the submission of the proposal for termination of EM&A programme for construction stage of the captioned Project covered under the EP No. FEP-01/457/2013/C issued on 23 December 2025. This Monthly EM&A Report (December 2025) would be the last Monthly EM&A Report of Contract No. HY/2014/07.

This is the 93^rd monthly EM&A Report presenting the EM&A works carried out during the period between 1 and 31 December 2025. As informed by the Contractor, major activities in the reporting period were:

Locations	Site Activities
Kai Tak	- Defect rectification works at depressed road;
Ma Tau Kok	- Defect rectification works at Public Transport Interchange
Kowloon Bay	- Nil

Breaches of Action and Limit Levels for Air Quality

The EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring results, and wind data, could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

Breaches of Action and Limit Levels for Noise

Regular Noise Monitoring

The EM&A monitoring, construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring results could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

No exceedance of Action and Limit level of noise was recorded in the reporting month.

Complaint, Notification of Summons and Successful Prosecution

No environmental related complaints, notification of summons and successful prosecution were received in the reporting month.

Reporting Changes

No report changes in the reporting period.

Future Key Issues

Key issues to be considered in the next month included:

Locations	Site Activities
Kai Tak	- Defect rectification works at depressed road;
Ma Tau Kok	- Defect rectification works at Public Transport Interchange
Kowloon Bay	- Nil.

Potential environmental impacts arising from the above construction activities are mainly associated with construction dust, construction noise, water pollution control, and waste management.

1 INTRODUCTION

Gammon Construction Limited was commissioned by the Highways Department as the Civil Contractor for Works Contract HY/2014/07. AECOM Asia Company Limited (AECOM) was appointed by Gammon Construction Limited as the Environmental Team (ET) to undertake the Environmental Monitoring and Audit (EM&A) programme during construction phase of the Project.

1.1 Purpose of the Report

1.1.1 This is the 93^rd monthly EM&A Report which summaries the impact monitoring results and audit findings for the Project during the reporting period between 1 and 31 December 2025.

1.2 Report Structure

1.2.1 This monthly EM&A Report is organized as follows:

· Section 1: Introduction

· Section 2: Project Information

· Section 3: Environmental Monitoring Requirement

· Section 4: Implementation Status of Environmental Mitigation Measures

· Section 5: Monitoring Results

· Section 6: Environmental Site Inspection and Audit

· Section 7: Environmental Non-conformance

· Section 8: Future Key Issues

· Section 9: Conclusions and Recommendations

2 Project Information

2.1 Background

2.1.1 CKR is a dual 3-lane trunk road across central Kowloon linking the West Kowloon in the west and the Kai Tak Development (KTD) in the east. The CKR will be about 4.7 km long with an underground tunnel section of about 3.9 km long, in particular, there will be an underwater tunnel of about 370 m long in Kowloon Bay to the north of the To Kwa Wan Typhoon Shelter. It will connect the West Kowloon Highway at Yau Ma Tei Interchange with the road network at Kowloon Bay and the future Trunk Road T2 at KTD which will connect to the future Tseung Kwan O – Lam Tin Tunnel (TKO-LTT) and Cross Bay Link (CBL). CKR, Trunk Road T2 and TKO-LTT will form a strategic highway link, namely Route 6, connecting West Kowloon and Tseung Kwan O. In addition, 3 ventilation buildings, which will be located in Ya Ma Tei, Ho Man Tin and ex-Kai Tak airport area, are proposed to ensure acceptable air quality within the tunnel.

2.1.2 The Environmental Impact Assessment (EIA) Report for Central Kowloon Route (Register No.: AEIAR-171/2013) was approved on 11 July 2013 under the Environmental Impact Assessment Ordinance (EIAO). Following the approval of the EIA Report, an Environmental Permit (EP) for CKR was granted on 9 August 2013 (EP No.: EP- 457/2013) for the construction and operation. Variation of EP (VEP) was subsequently applied and the latest EP (EP No. EP-457/2013/D) was issued by the Director of Environmental Protection (DEP) on 15 June 2021. Further Environmental Permit (EP No. FEP-01/457/2013/C) for CKR – Kai Tak West was issued on 28 February 2018.

2.1.3 The construction of the CKR had been divided into different sections. This Work Contract HY/2014/07 – Kai Tak West (KTW) (“The Project”) will include a road which is a trunk road, including new roads, and major extensions or improvements to existing roads; a road fully enclosed by decking above and by structure on the sides for more than 100 m; and reclamation works (including associated dredging works) more than 1 ha in size and a boundary of which is less than 100 m from an existing residential area.

2.1.4 The site layout plan of the Project is shown in Figure 1.1.

2.2 Site Description

2.2.1 The major construction activities under this Project include:

(a) construction of approximately 160m long cut-and-cover tunnel and 370m long underwater tunnel between the tunnel section at Ma Tau Kok and the depressed road of the CKR within Kai Tak Development;

(b) reconstruction of the seawall at Ma Tau Kok public pier, and the sloping seawall at the Former Kai Tak Airport Runway;

(c) construction of approximately 125m long depressed road and 200m long underpass of the CKR within Kai Tak Development;

(d) construction of approximately 360m long underground tunnel ventilation adit of the CKR;

(e) reconstruction of Kowloon City Ferry Pier Public Transport Interchange; and

(f) other associated works.

2.3 Construction Programme and Activities

2.3.1 The major construction activities undertaken in the reporting month are summarized in Table 2.1.

Table 2.1 Construction Activities in the reporting month

Locations	Site Activities
Kai Tak	- Defect rectification works at depressed road;
Ma Tau Kok	- Defect rectification works at Public Transport Interchange
Kowloon Bay	- Nil

2.3.2 The construction programme is presented in Appendix A.

2.4 Project Organization

2.4.1 The project organization structure is shown in Appendix B. The key personnel contact names and numbers for the Project are summarized in Table 2.2.

Table 2.2 Contact Information of Key Personnel

Party	Role	Position	Name	Telephone	Fax
Arup-Mott MacDonald Joint Venture	Residential Engineer (ER)	Engineer’s Representative	Mr. Patrick Lo	36195901	2268 3954
ERM	Independent Environmental Checker (IEC)	Independent Environmental Checker	Ms. Mandy To	2271 3113	3015 8052
Gammon	Contractor	Contracts Manager	Mr. Kin Fai Tam	2516 8823	2516 6260
Gammon	Contractor	Environmental Manager	Ms. Michelle Tang	9267 8866	2516 6260
AECOM	Contractor’s Environmental Team (ET)	ET Leader	Mr. Y. W. Fung	3856 5681	2317 7609

2.5 Status of Environmental Licences, Notification and Permits

2.5.1 Relevant environmental licenses, permits and/or notifications on environmental protection for this Project and valid in the reporting month are summarized in Table 2.3.

Table 2.3 Status of Environmental Licenses, Notifications and Permits

Permit / License No. / Notification/ Reference No.	Valid Period		Status	Remarks
Permit / License No. / Notification/ Reference No.	From	To	Status	Remarks
*Further Environmental Permit*
FEP-01/457/2013/C	28 Feb 2018	End of Project	Valid	--
*Wastewater Discharge License*
WT00043692-2023	1 Apr 2023	31 Mar 2028	Valid	Ma Tau Kok
WT00043881-2023	30 Jun 2023	30 Jun 2028	Valid	Underwater Tunnel Stage 2
WT00044013-2023	7 May 2025	30 Apr 2028	Valid	Kai Tak and Underwater Tunnel Stage 1
*Construction Noise Permit*
GW-RE0157-25	7 Mar 2025	6 Sep 2025	No further renewal by KTW	General Works at Ma Tau Kok
GW-RE0631-25	15 Jun 2025	14 Dec 2025	No further renewal by KTW	General Works at Kai Tak
GW-RE0418-25	30 Apr 2025	29 Oct 2025	No further renewal by KTW	General Works at Stage 1 Underwater Tunnel
GW-RE0581-25	7 Jun 2025	6 Nov 2025	No further renewal by KTW	General Works at Stage 2 Underwater Tunnel
GW-RE0233-25	19 Mar 2025	18 Sep 2025	No further renewal by KTW	Kai Tak Access Road
*Chemical Waste Producer Registration*
5118-247-G2347-47	30 Jan 2018	End of Project	Valid	--
5118-247-G2347-48	30 Jan 2018	End of Project	Valid	--
*Marine Dumping Permit*
--	--	--	--	--
*Billing Account for Construction Waste Disposal*
7029909	22 Jan 2018	End of Project	Account Active	--
*Notification Under Air Pollution Control (Construction Dust) Regulation*
429442	5 Jan 2018	End of Project	Notified	--

3 Environmental Monitoring Requirements

3.1 Construction Dust Monitoring

Monitoring Requirements

3.1.1 In accordance with the approved EM&A Manual, measurement of 24-hour and 1-hour Total Suspended Particulates (TSP) level at the designated air quality monitoring station is required. Impact 24-hour TSP monitoring should be carried out for at least once every 6 days, and 1-hour TSP monitoring should be done at least 3 times every 6 days while the highest dust impact is expected. The Action and Limit Levels of the air quality monitoring is provided in Appendix D.

Monitoring Equipment

3.1.2 The EM&A monitoring, construction dust monitoring (monitoring station E-A14a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring equipment could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

Monitoring Locations

3.1.3 The monitoring station for construction dust monitoring pertinent to the Project has been identified based on the approved EM&A Manual for the Project. The location of the construction dust monitoring station is summarized in Table 3.1 and shown in Figure 3.1.

Table 3.1 Location of Construction Dust Monitoring Station

Location	Monitoring Station	Description
E-A14a^[1]	Block B of Merit Industrial Centre	Rooftop (13/F)

Note:

[1] The air monitoring station proposed in the EM&A Manual (i.e. Wyler Gardens with ID: E-A14) was not available for impact dust monitoring, therefore impact monitoring was conducted at E-A14a as an alternative which was agreed by the ER, IEC and EPD.

Monitoring Methodology

3.1.4 The EM&A monitoring, construction dust monitoring (monitoring station E-A14a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring methodology could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

Monitoring Schedule for the Reporting Month

3.1.5 The EM&A monitoring, construction dust monitoring (monitoring station E-A14a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring schedule could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

3.2 Construction Noise Monitoring

Monitoring Requirements

3.2.1 In accordance with the EM&A Manual, impact noise monitoring should be conducted for at least once a week during the construction phase of the Project. Table 3.2 summarizes the monitoring parameters, frequency and duration of impact noise monitoring. The Action and Limit Levels of the noise monitoring is provided in Appendix D.

Table 3.2 Noise Monitoring Parameters, Frequency and Duration

Parameter and Duration	Frequency
30-mins measurement at each monitoring station between 0700 and 1900 on normal weekdays. L_eq, L₁₀ and L₉₀ would be recorded.	At least once per week

Monitoring Equipment

3.2.2 The EM&A monitoring, construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding equipment could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

Monitoring Locations

3.2.3 The monitoring stations for construction noise monitoring pertinent to the Project have been identified based on the approved EM&A Manual for the Project. Locations of the noise monitoring stations are summarized in Table 3.3 and shown in Figure 3.2.

Table 3.3 Noise Monitoring Stations during Construction Phase

Location	Monitoring Station	Description	Measurement
E-N12a ^[1]	19 Hing Yan Street	Rooftop (9/F)	Façade
E-N21a ^[1]	Block B of Merit Industrial Centre	Rooftop (13/F)	Free field^[2]

Notes:

[1] The noise monitoring stations proposed in the EM&A Manual (i.e. Grand Waterfront Tower 3 with ID: E-N12 and Hang Chien Court Block J with ID: E-N21) were not available for impact noise monitoring, therefore impact monitoring was conducted at E-N12a and E-N21a as an alternative which was agreed by the ER, IEC and EPD.

[2] A correction of +3 dB(A) was made to the free field measurements.

Monitoring Parameters, Frequency and Duration

3.2.4 The EM&A monitoring, construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring parameters, frequency and duration could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

Monitoring Methodology

3.2.5 The EM&A monitoring, construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring methodology could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

Monitoring Schedule for the Reporting Month

3.2.6 The EM&A monitoring, construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring schedule could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

3.3 Landscape and Visual

3.3.1 As per the EM&A Manuals, the landscape and visual mitigation measures shall be implemented and site inspections should be undertaken once every two weeks during the construction period. A summary of the implementation status is presented in Section 6.

4 Implementation Status of Environmental Mitigation Measures

4.1.1 The Contractor has implemented environmental mitigation measures and requirements as stated in the EIA Reports, the EP and EM&A Manuals. The implementation status of the environmental mitigation measures during the reporting period is summarized in Appendix C. Status of required submissions under the EP during the reporting period is summarised in Table 4.1.

Table 4.1 Status of Required Submission under Environmental Permit

EP Condition	Submission	Submission Date
Condition 3.4 of EP-457/2013/D and Condition 3.4 of FEP-01/457/2013/C	Monthly EM&A Report for November 2025	12 December 2025

EP Condition

Submission

Submission Date

Condition 3.4 of
EP-457/2013/D
and
Condition 3.4 of
FEP-01/457/2013/C

Monthly EM&A Report for

November 2025

12 December 2025

5 Monitoring Results

5.1 Construction Dust Monitoring

5.1.1 The EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring results, and wind data, could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

5.1.2 The event and action plan are annexed in Appendix E.

5.1.3 Major dust sources during the monitoring included construction dust and nearby traffic emission.

5.2 Regular Construction Noise Monitoring

5.2.1 The EM&A monitoring, construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring results could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

5.2.2 No exceedance of Action and Limit level of noise was recorded in the reporting month.

5.2.3 The event and action plan are annexed in Appendix E.

5.2.4 Major noise sources during the monitoring included construction noise from the Project site and nearby traffic noise.

5.3 Waste Management

5.3.1 C&D materials and wastes sorting were carried out on site. Receptacles were available for C&D wastes and general refuse collection.

5.3.2 As advised by the Contractor, 27 m³ of C&D material were generatedand 27 m³ C&D material was disposed to public fill. No inert C&D were reused in the contract in the reporting month. 40,760 kgof general refuse was generated and sent to NENT Landfill in the reporting month. No metal, no paper/cardboard packaging and no plastics were collected by recycle contractor in the reporting month. No chemical waste was collected by licensed contractor in the reporting month. No Type 1, Type 2 and Type 3 Marine sediment were disposed at Confined Marine Disposal Facility to the East of Sha Chau. The waste flow table is annexed in Appendix G.

5.3.3 The Contractor is advised to properly maintain on site C&D materials and wastes collection, sorting and recording system and maximize reuse / recycle of C&D materials and wastes. The Contractor is reminded to properly maintain the site tidiness and dispose of the wastes accumulated on site regularly and properly.

5.3.4 The Contractor is reminded that chemical waste containers should be properly treated and stored temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.

5.4 Landscape and Visual

5.4.1 Bi-weekly inspection of the implementation of landscape and visual mitigation measures was conducted on 10 and 24 December 2025. A summary of the site inspection is provided in Appendix C. The observations and recommendations made during the site inspections are presented in Table 6.1.

6 ENVIRONMENTAL SITE INSPECTION AND AUDIT

6.1.1 Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures for the Project. A summary of the mitigation measures implementation schedule is provided in Appendix C.

6.1.2 In the reporting month, 4 site inspections were carried out on 3, 10, 17 and 24 December 2025. Joint inspections with the IEC, ER, the Contractor and ET were conducted on 24 December 2025. No non-compliance was recorded during the site inspection. Details of observations recorded during the site inspections are presented in Table 6.1.

Table 6.1 Observations and Recommendations of Site Audit

Parameters	Date	Observations and Recommendations	Follow-up
Air Quality	17 December 2025	· Reminder: · The contractor was reminded to provide sandbags at the boundary of breaking area, to prevent surface runoff by watering at MTK site.	The item was rectified by the Contractor on 24 December 2025.
Noise	Nil	· Nil	Nil
Water Quality	Nil	· Nil	Nil
Waste/ Chemical Management	10 December 2025	· Reminder: · The contractor was reminded to provide sandbag to prevent the soil and concrete into the drainages.	The item was rectified by the Contractor on 17 December 2025.
Landscape & Visual	Nil	· Nil	Nil
Permits/ Licenses	Nil	Nil	Nil

*The item was under rectification on last reporting month.

6.1.3 All follow-up actions requested by Contractor's ET during the site inspection were undertaken as reported by the Contractor and confirmed in the following weekly site inspection conducted during the reporting period.

7 Environmental Non-conformance

7.1 Summary of Monitoring Exceedances

7.1.1 The The EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) and construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring parameters, equipment, methodology, monitoring schedule wind data, results and the established Action and Limit Levels could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

7.1.2 No exceedance of Action and Limit level of noise was recorded in the reporting month.

7.2 Summary of Environmental Non-Compliance

7.2.1 No environmental non-compliance was recorded in the reporting month.

7.3 Summary of Environmental Complaints

7.3.1 No environmental related complaints, notification of summons and successful prosecution were received in the reporting month. Cumulative statistics on environmental complaint is provided in Appendix F.

7.4 Summary of Environmental Summon and Successful Prosecutions

7.4.1 No environmental related prosecution or notification of summons was received in the reporting month. Cumulative statistics on notification of summons and successful prosecutions is provided in Appendix F.

8 FUTURE KEY ISSUES

8.1 Construction Programme for the Next Three Months

8.1.1 The major construction works in January 2026 is provided in Table 8.1.

8.1.2 All construction works of Contract No. HY/2014/07 Central Kowloon Route – Kai Tak West (FEP-01/457/2013/C) are substantially completed in September 2025. The proposal of termination of the EM&A Programme under FEP-01/457/2013/C was submitted on 28 November 2025.

8.1.3 EPD has approved the submission of the proposal for termination of EM&A programme for construction stage of the captioned Project covered under the EP No. FEP-01/457/2013/C issued on 23 December 2025. This Monthly EM&A Report (December 2025) would be the last Monthly EM&A Report of Contract No. HY/2014/07.

Table 8.1 Construction Activities in the coming month

Locations	Site Activities
Kai Tak	- Defect rectification works at depressed road;
Ma Tau Kok	- Defect rectification works at Public Transport Interchange
Kowloon Bay	- Nil.

8.2 Key Issues for the Coming Month

8.2.1 Potential environmental impacts arising from the above construction activities are mainly associated with construction dust, construction noise, and waste management.

8.3 Monitoring Schedule for the Coming Month

8.3.1 EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) and construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025.

9 ConclusionS AND RECOMMENDATIONS

9.1 Conclusions

9.1.1 The EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) and construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025. Details of the corresponding monitoring parameters, equipment, methodology, monitoring schedule wind data, results and the established Action and Limit Levels could be referred to Sections 3 of the corresponding Monthly EM&A Report for Contract No. HY/2023/08.

9.1.2 No exceedance of Action and Limit level of noise was recorded in the reporting month.

9.1.3 4 nos. of environmental site inspections were carried out in December 2025. Recommendations on remedial actions were given by ET and IEC to the Contractor for the deficiencies identified during the site audit.

9.1.4 No environmental related complaints, notification of summons and successful prosecution were received in the reporting month.

9.1.5 No environmental related notification of summons and successful prosecution were received in the reporting month.

9.1.6 All construction works of Contract No. HY/2014/07 Central Kowloon Route – Kai Tak West (FEP-01/457/2013/C) are substantially completed in September 2025. The proposal of termination of the EM&A Programme under FEP-01/457/2013/C was submitted on 28 November 2025.

9.1.7 EPD has approved the submission of the proposal for termination of EM&A programme for construction stage of the captioned Project covered under the EP No. FEP-01/457/2013/C issued on 23 December 2025. This Monthly EM&A Report (December 2025) would be the last Monthly EM&A Report of Contract No. HY/2014/07.

9.2 Recommendations

9.2.1 According to the environmental site inspections performed in the reporting month, the following recommendations were provided:

Air Quality Impact

· The contractor was reminded to provide sandbags at the boundary of breaking area, to prevent surface runoff by watering at MTK site.

Construction Noise Impact

· No specific observation was identified in the reporting month.

Water Quality Impact

· No specific observation was identified in the reporting month.

Chemical and Waste Management

· The contractor was reminded to provide sandbag to prevent the soil and concrete into the drainages.

Landscape & Visual Impact

· No specific observation was identified in the reporting month.

Permits/licenses

· No specific observation was identified in the reporting month.

Permit/ License/ Notification / Reference No.	Valid Period	Status	Remark
Environmental Permit
EP-457/2013/D	15 June 2021	--	Valid	--
Wastewater Discharge License
WT00046473-2025	9 May 2025	End of Project	Valid	--
Notification of Construction Works Under the Air Pollution Control (Construction Dust Regulation)
10007346	25 July 2024	End of Project	Notified	--
Chemical Waste Producer Registration
5213-286-B2767-02	19 March 2025	--	Valid	--
Billing Account for Disposal of Construction Waste
7051793	6 August 2024	--	Valid	--
Y-Park Membership
C0280	12 August 2024	--	Valid	--
Construction Noise Permit
GW-RE1157-25	25 September 2025	21 March 2026	Valid	General Activities at Kai Tak Phase 2B Landscaped Deck
Collection of Public Fill at Public Fill Reception Facility
TKO137-HY/2023/08-02	1 July 2025	31 December 2025	Valid	--

3 Air Quality and Noise Monitoring

3.1 Air Quality

Monitoring Requirements

3.1.1 In accordance with the approved EM&A Manual, measurement of 24-hour and 1-hour Total Suspended Particulates (TSP) level at the designated air quality monitoring station is required. Impact 24-hour TSP monitoring should be carried out for at least once every 6 days, and 1-hour TSP monitoring should be done at least 3 times every 6 days while the highest dust impact is expected.

Monitoring Equipment

3.1.2 24-hour TSP air quality monitoring was performed using High Volume Sampler (HVS) located at the designated monitoring station. The HVS meets all the requirements of the EM&A Manual. A portable direct reading dust meter was used to carry out the 1-hour TSP monitoring.

3.1.3 A summary of the equipment that was deployed for the air quality monitoring is shown in Table 3.1.

Table 3.1 Air Quality Monitoring Equipment

Monitoring Parameter	Monitoring Equipment	Serial Number	Date of Calibration
24-hour TSP	High Volume Sampler (Model No. TE-5170X)	1087	28 November 2025
24-hour TSP	Calibration Kit (Model No. TE-5025A)	4166	8 May 2025
1-hour TSP	Digital Dust Indicator (Model: Sibata LD-5R)	467361	15 August 2025

Monitoring Locations

3.1.4 The monitoring station for air quality monitoring pertinent to the Project has been identified based on the approved EM&A Manual for the Project. The location of the air quality monitoring station is summarized in Table 3.2 and shown in Appendix G.

Table 3.2 Air Quality Monitoring Station

Location I.D.

Monitoring Station

Description

E-A14a ⁽¹⁾

Block B of Merit Industrial Centre

Rooftop (13/F)

Note:

(1) The air monitoring station proposed in the EM&A Manual (i.e. Wyler Gardens with ID: E-A14) was not available for impact dust monitoring, therefore impact monitoring was conducted at E-A14a as an alternative which was agreed by the ER, IEC and EPD.

Monitoring Methodology and QA/QC

3.1.5 24-hour TSP Monitoring

The HVS was installed in the vicinity of the air sensitive receivers. The following criteria were considered in the installation of the HVS as far as practicable: -

- A horizontal platform with appropriate support to secure the sampler against gusty wind was provided.

- Two samplers should not be placed less than 2m apart from each other.

- The distance between the HVS and any obstacles, such as buildings, was at least twice the height that the obstacle protrudes above the HVS.

- A minimum of 2 meters separation from walls, parapets and penthouse for rooftop sampler.

- A minimum of 2 meters separation from any supporting structure, measured horizontally is required.

- No furnace or incinerator flues nearby.

- Airflow around the sampler was unrestricted.

- The sampler was located more than 20 meters from any dripline.

- Any wire fence and gate, required to protect the sampler, did not obstruct the monitoring process.

- Permission was obtained to set up the samplers and access to the monitoring station.

- A secured supply of electricity was obtained to operate the sampler.

Preparation of Filter Paper

- Glass fibre filters, G810 were labelled and sufficient filters that were clean and without pinholes were selected.

- All filters were equilibrated in the conditioning environment for 24 hours before weighing. The conditioning environment temperature was around 25 °C and not variable by more than ±3 °C; the relative humidity (RH) was < 50% and not variable by more than ±5%. A convenient working RH was 40%.

- All filter papers were prepared and analysed by Acumen Laboratory and Testing Limited, which is a HOKLAS accredited laboratory and has comprehensive quality assurance and quality control programmes.

Field Monitoring

- The power supply was checked to ensure the HVS works properly.

- The filter holder and the area surrounding the filter were cleaned.

- The filter holder was removed by loosening the four bolts and a new filter, with stamped number upward, on a supporting screen was aligned carefully.

- The filter was properly aligned on the screen so that the gasket formed an airtight seal on the outer edges of the filter.

- The swing bolts were fastened to hold the filter holder down to the frame. The pressure applied was sufficient to avoid air leakage at the edges.

- Then the shelter lid was closed and was secured with the aluminium strip.

- The HVS was warmed-up for about 5 minutes to establish run-temperature conditions.

- A new flow rate record sheet was set into the flow recorder.

- On site temperature and atmospheric pressure readings were taken and the flow rate of the HVS was checked and adjusted at around 1.3 m3/min, and complied with the range specified in the EM&A Manual (i.e. 0.6-1.7 m3/min).

- The programmable digital timer was set for a sampling period of 24 hrs, and the starting time, weather condition and the filter number were recorded.

- The initial elapsed time was recorded.

- At the end of sampling, on site temperature and atmospheric pressure readings were taken and the final flow rate of the HVS was checked and recorded.

- The final elapsed time was recorded.

- The sampled filter was removed carefully and folded in half length so that only surfaces with collected particulate matter were in contact.

- It was then placed in a clean envelope and sealed.

- All monitoring information was recorded on a standard data sheet.

- Filters were then sent to Acumen Laboratory and Testing Limited for analysis.

Maintenance and Calibration

- The HVS and its accessories were maintained in good working condition, such as replacing motor brushes routinely and checking electrical wiring to ensure a continuous power supply.

- HVSs were calibrated using TE-5025A Calibration Kit upon installation and thereafter at bi-monthly intervals.

- Calibration certificate of the TE-5025A Calibration Kit and the HVSs are provided in Appendix I.

Wind Data Monitoring

- The wind speed has been recorded from Hong Kong Observatory- King’s Park meteorological station, along with portable wind speed meter stand by as back up when the information is not available from HKO.

3.1.6 1-hour TSP Monitoring

The measuring procedures of the 1-hour dust meter are in accordance with the Manufacturer’s Instruction Manual as follows:

- Turn the power on.

- Close the air collecting opening cover.

- Push the “TIME SETTING” switch to [BG]

- Push “START/STOP” switch to perform background measurement for 6 seconds.

- Turn the knob at SENSI ADJ position to insert the light scattering plate.

- Leave the equipment for 1 minute upon “SPAN CHECK” is indicated in the display.

- Push “START/STOP” switch to perform automatic sensitivity adjustment. This measurement takes 1 minute.

- Pull out the knob and return it to MEASURE position.

- Push the “TIME SETTING” switch the time set in the display to 3 hours.

- Lower down the air collection opening cover.

- Push “START/STOP” switch to start measurement.

Maintenance and Calibration

- The 1-hour TSP meter was calibrated at 1-year intervals against a High Volume Sampler. Calibration certificates of the Laser Dust Monitors are provided in Appendix I.

Monitoring Schedule for the Reporting Month

3.1.7 The schedule for impact air quality monitoring in November 2025 is provided in Appendix H.

Monitoring Results

3.1.8 The monitoring results for 24-hour TSP and 1-hour TSP are summarized in Table 3.3 and Table 3.4 respectively. Detailed air quality monitoring results and daily extract of meteorological observations are presented in Appendix J.

Table 3.3 Summary of 24-hour TSP Monitoring Result in the Reporting Period

Location I.D.	Range (μg/m³)	Action Level (μg/m³)	Limit Level (μg/m³)
E-A14a	43 – 73	197.3	260

Table 3.4 Summary of 1-hour TSP Monitoring Result in the Reporting Period

Location I.D.	Range (μg/m³)	Action Level (μg/m³)	Limit Level (μg/m³)
E-A14a	32 – 72	302.4	500

3.1.9 Major dust sources during the monitoring included construction dust and nearby traffic emission.

Observations

3.1.10 No Action/ Limit Level exceedance was recorded for all 1-hour TSP and 24-hour TSP monitoring at the monitoring location in the reporting period.

3.1.11 The event and action plan are annexed in Appendix D.

3.1.12 Site audits were carried out on a weekly basis to monitor and audit the timely implementation of air quality mitigation measures within the site boundaries of this Project. A summary of observation during the site audits is shown in Table 7.1 of this report.

3.2 Noise

Monitoring Requirements

3.2.1 In accordance with the EM&A Manual, impact noise monitoring should be conducted for at least once a week during the construction phase of the Project. Table 3.5 summaries the monitoring parameters, frequency and duration of impact noise monitoring.

Table 3.5 Noise Monitoring Parameter, Frequency and Duration

Parameter and Duration	Frequency
30-mins measurement at each monitoring station between 0700 and 1900 on normal weekdays. L_eq, L₁₀ and L₉₀ would be recorded.	At least once per week

Monitoring Equipment

3.2.2 Noise monitoring was performed using sound level meter at each designated monitoring station. The sound level meters deployed comply with the International Electrotechnical Commission Publications (IEC) 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic calibrator was deployed to check the sound level meters at a known sound pressure level. A summary of equipment is given in Table 3.6.

Table 3.6 Summary of Noise Monitoring Equipment

Equipment	Manufacturer and Model	Serial Number	Date of Calibration
Sound Level Meter	NTi XL3	A3A-01229-F0	24 July 2025
Acoustic Calibrator	RION NC-75	34724244	11 July 2025

Monitoring Locations

3.2.3 The monitoring stations for construction noise monitoring pertinent to the Project have been identified based on the approved EM&A Manual for the Project. Locations of the noise monitoring stations are summarized in Table 3.7 and shown in Appendix G.

Table 3.7 Noise Monitoring Station for Construction Phase

Location I.D.	Monitoring Station	Description	Measurement
E-N12a ⁽¹⁾	19 Hing Yan Street	Rooftop (9/F)	Façade
E-N21a	Block B of Merit Industrial Centre	Rooftop (13/F)	Free-field ⁽²⁾
Note: (1) The noise monitoring stations proposed in the EM&A Manual (i.e. Grand Waterfront Tower 3 with ID: E-N12 and Hang Chien Court Block J with ID: E-N21) were not available for impact noise monitoring, therefore impact monitoring was conducted at E-N12a and E-N21a as an alternative which was agreed by the ER, IEC and EPD. (2) A correction of +3 dB(A) was made to the free-field measurements.

Monitoring Methodology and QA/QC

Monitoring Procedures

- The sound level meter was set on a tripod at a height of 1.2 m above the ground.

- Façade measurement was made at E-N12a.

- Free field measurements was made at monitoring location E-N21a. A correction of +3 dB(A) shall be made to the free field measurements.

- The battery condition was checked to ensure the correct functioning of the meter.

- Parameters such as frequency weighting, the time weighting and the measurement time were set as follows:

§ frequency weighting

§ time weighting: Fast

§ time measurement: L_{eq(30-minutes)}during non-restricted hours i.e. 0700 – 1900 on normal weekdays.

- Prior to and after each noise measurement, the meter was calibrated using the acoustic calibrator for 94 dB(A) at 1000 Hz. If the difference in the calibration level before and after measurement was more than 1 dB(A), the measurement would be considered invalid and repeat of noise measurement would be required after re-calibration or repair of the equipment.

- During the monitoring period, the L_eq, L₁₀ and L₉₀ were recorded. In addition, site conditions and noise sources were recorded on a standard record sheet.

- Noise measurement was paused during periods of high intrusive noise (e.g. dog barking, helicopter noise) if possible. Observations were recorded when intrusive noise was unavoidable.

- Noise monitoring was cancelled in the presence of fog, rain, wind with a steady speed exceeding 5m/s, or wind with gusts exceeding 10m/s.

Maintenance and Calibration

- The microphone head of the sound level meter was cleaned with soft cloth at regular intervals.

- The meter and calibrator were sent to the supplier or HOKLAS laboratory to check and calibrate at yearly intervals.

- Calibration certificates of the sound level meters and acoustic calibrators are provided in Appendix K.

Monitoring Schedule for the Reporting Month

3.2.4 The schedule for impact air quality monitoring in November 2025 is provided in Appendix H.

Monitoring Results

3.2.5 The monitoring results for noise are summarized in Table 3.8 and the monitoring data is provided in Appendix L.

Table 3.8 Summary of Construction Noise Monitoring Results in the Reporting Period

Location I.D.	Range, dB(A), L_{eq (30 mins)}	Limit Level, L_{eq (30 mins)}
E-N12a	54.7 – 62.6	75.0
E-N21a	60.9 – 70.7⁽¹⁾	75.0
Note: (1) A correction of +3 dB(A) was made to the free-field measurements.

3.2.6 Major noise sources during the monitoring included construction noise from the nearby construction and nearby traffic noise.

Observations

3.2.7 No Action/ Limit Level exceedance was recorded for construction noise monitoring in the reporting period.

3.2.8 Site audits were carried out on a weekly basis to monitor and audit the timely implementation of noise mitigation measures within the site boundaries of this Project. A summary of observations during the site audits is shown in Table 7.1 of this report.

EVENT	ACTION
ACTION LEVEL
Exceedance for one sample	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Inform IEC and ER; 3. Repeat measurement to confirm finding; 4. Increase monitoring frequency to daily.	1. Check monitoring data submitted by ET; 2. Check Contractor’s working method.	1. Notify Contractor.	1. Rectify any unacceptable practice; 2. Amend working methods if appropriate.
Exceedance for two or more consecutive samples	1. Identify source; 2. Inform IEC and ER; 3. Advise the ER on the effectiveness of the proposed remedial measures; 4. Repeat measurements to confirm findings; 5. Increase monitoring frequency to daily; 6. Discuss with IEC and Contractor on remedial actions required; 7. If exceedance continues, arrange meeting with IEC and ER; 8. If exceedance stops, cease additional monitoring.	1. Check monitoring data submitted by ET; 2. Check Contractor’s working method; 3. Discuss with ET and Contractor on possible remedial measures; 4. Advise the ET on the effectiveness of the proposed remedial measures; 5. Supervise implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Ensure remedial measures properly implemented.	1. Submit proposals for remedial actions to ER within 3 working days of notification; 2. Implement the agreed proposals; 3. Amend proposal if appropriate.
LIMIT LEVEL
Exceedance for one sample	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Inform ER, Contractor and EPD; 3. Repeat measurement to confirm finding; 4. Increase monitoring frequency to daily; 5. Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results.	1. Check monitoring data submitted by ET; 2. Check Contractor’s working method; 3. Discuss with ET and Contractor on possible remedial measures; 4. Advise the ER on the effectiveness of the proposed remedial measures; 5. Supervise implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Ensure remedial measures properly implemented.	1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; 3. Implement the agreed proposals; 4. Amend proposal if appropriate.
Exceedance for two or more consecutive samples	1. Notify IEC, ER, Contractor and EPD; 2. Identify source; 3. Repeat measurement to confirm findings; 4. Increase monitoring frequency to daily; 5. Carry out analysis of Contractor’s working procedures to determine possible mitigation to be implemented; 6. Arrange meeting with IEC and ER to discuss the remedial actions to be taken; 7. Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and ER informed of the results; 8. If exceedance stops, cease additional monitoring.	1. Discuss amongst ER, ET, and Contractor on the potential remedial actions; 2. Review Contractor’s remedial actions whenever necessary to assure their effectiveness and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. In consultation with the IEC, agree with the Contractor on the remedial measures to be implemented; 4. Ensure remedial measures properly implemented; 5. If exceedance continues, consider what portion of the work is responsible and instruct the Contractor to stop that portion of work until the exceedance is abated.	1. Take immediate action to avoid further exceedance; 2. Submit proposals for remedial actions to IEC within 3 working days of notification; 3. Implement the agreed proposals; 4. Resubmit proposals if problem still not under control; 5. Stop the relevant portion of works as determined by the ER until the exceedance is abated.

EVENT	ACTION
Action Level	1. Identify source, investigate the causes of exceedance and propose remedial measures; 2. Notify IEC and Contractor; 3. Report the results of investigation to the IEC, ER and Contractor; 4. Discuss with the Contractor and formulate remedial measures; 5. Increase monitoring frequency to check mitigation effectiveness.	1. Review the analysed results submitted by the ET; 2. Review the proposed remedial measures by the Contractor and advise the ER accordingly; 3. Supervise the implementation of remedial measures.	1. Confirm receipt of notification of failure in writing; 2. Notify Contractor; 3. Require Contractor to propose remedial measures for the analysed noise problem; 4. Ensure remedial measures are properly implemented	1. Submit noise mitigation proposals to IEC; 2. Implement noise mitigation proposals.

Environmental Mitigation Implementation Schedule

EIA Ref.	EM&A Log Ref.	Recommended Mitigation Measures	Objectives of the Recommended Measures & Main Concerns to address	Implementation Agent	Location / Timing	Implementation Stage		Requirements and/ or standards to be achieved	Implementation Status
Construction Dust Impact
S4.3.10	D1	The contractor shall follow the procedures and requirements given in the Air Pollution Control (Construction Dust) Regulation and Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation.	Minimize dust impact and adverse health effects at the nearby sensitive receivers	Contractor	All construction sites	Construction stage		· APCO · To control the dust impact to meet HKAQO and TM-EIA criteria	Implemented.
S4.3.10	D2	· Mitigation measures in form of regular watering under a good site practice should be adopted. Watering once per hour on exposed worksites and haul road should be conducted to achieve dust removal efficiencies of 91.7%. While the above watering frequencies are to be followed, the extent of watering may vary depending on actual site conditions but should be sufficient to maintain an equivalent intensity of no less than 1.3 L/m² to achieve the dust removal efficiency.	Minimize dust impact at the nearby sensitive receivers	Contractor	All construction sites	Construction stage		· APCO · To control the dust impact to meet HKAQO and TM-EIA criteria	Implemented.
S4.3.10	D3	· Proper watering at exposed spoil should be undertaken throughout the construction phase; · Any excavated or stockpile of dusty material should be covered entirely by impervious sheeting or sprayed with water to maintain the entire surface wet and then removed or backfilled or reinstated where practicable within 24 hours of the excavation or unloading; · Any dusty materials remaining after a stockpile is removed should be wetted with water and cleared from the surface of roads; · A stockpile of dusty material should not be extended beyond the pedestrian barriers, fencing or traffic cones; · The load of dusty materials on a vehicle leaving a construction site should be covered entirely by impervious sheeting to ensure that the dusty materials do not leak from the vehicle. · Where practicable, vehicle washing facilities with high pressure water jet should be provided at every discernible or designated vehicle exit point. The area where vehicle washing takes place and the road section between the washing facilities and the exit point should be paved with concrete, bituminous materials or hardcores; · When there are open excavation and reinstatement works, hoarding of not less than 2.4m high should be provided and properly maintained as far as practicable along the site boundary with provision for public crossing. Good site practice shall also be adopted by the Contractor to ensure the conditions of the hoardings are properly maintained throughout the construction period; · The portion of any road leading only to construction site that is within 30m of a vehicle entrance or exit should be kept clear of dusty materials; · Surfaces where any pneumatic or power-driven drilling, cutting, polishing or other mechanical breaking operation takes place should be sprayed with water or a dust suppression chemical continuously; · Any area that involves demolition activities should be sprayed with water or a dust suppression chemical immediately prior to, during and immediately after the activities so as to maintain the entire surface wet; · Any skip hoist for material transport should be totally enclosed by impervious sheeting; · Every stock of more than 20 bags of cement or dry-pulverised fuel ash (PFA) should be covered entirely by impervious sheeting or placed in an area sheltered on the top and the 3 sides; · Loading, unloading, transfer, handling or storage of bulk cement or dry PFA should be carried out in a totally enclosed system or facility, and any vent or exhaust should be fitted with an effective fabric filter or equivalent air pollution control system · Exposed earth should be properly treated by compaction, turfing, hydroseeding, vegetation planting or sealing with latex, vinyl, bitumen, shotcrete or other suitable surface stabilizer within six months after the last construction activity on the construction site or part of the construction site where the exposed earth lies.	Minimize dust impact at the nearby sensitive receivers	Contractor	All construction sites	Construction stage		· APCO · To control the dust impact to meet HKAQO and TM-EIA criteria	Implemented, rectified after reminder for 1^st bullet. Implemented for the 2^nd to 6^th bullet. N/A for other bullets.
S4.3.10	D6	Implement regular dust monitoring under EM&A programme during the construction stage.	Monitoring of dust impact	Contractor	Selected rep. dust monitoring station		Construction stage	· TM-EIA	Implemented
Construction Noise (Airborne)
S5.4.1	N1	Implement the following good site practices: · Only well-maintained plant should be operated on-site, and plant should be serviced regularly during the construction programme; · Machines and plant (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum; · Plant known to emit noise strongly in one direction, where possible, be orientated so that the noise is directed away from nearby NSRs; · Silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works; · Mobile plant should be sited as far away from NSRs as possible and practicable; · Material stockpiles, mobile container site office and other structures should be effectively utilized, where practicable, to screen noise from on-site construction activities.	Control construction airborne noise	Contractor	All construction sites	Construction stage		· Annex 5, TM-EIAO	Implemented for the 1^st, 2^nd, 5^th bullets, N/A for other bullets
S5.4.1	N2	Install temporary hoarding located on the site boundaries between noisy construction activities and NSRs. The conditions of hoardings shall be properly maintained throughout the construction period.	Reduce the construction noise levels at low-level zone of NSRs through partial screening	Contractor	All construction sites	Construction stage		· Annex 5, TM-EIAO	N/A
S5.4.1	N3	Install movable noise barriers (typical design is wooden framed barrier with a small-cantilevered on a skid footing with 25mm thick internal sound absorptive lining), acoustic mat or full enclosure, screen the noisy plants including air compressors, generators and handheld breakers, etc.	Screen the noisy plant items to be used at all construction sites	Contractor	All construction sites where practicable	Construction stage		· Annex 5, TM-EIAO	N/A
S5.4.1	N4	Use ‘Quiet plant’	Reduce the noise levels of plant items	Contractor	All construction sites where practicable	Construction stage		· Annex 5, TM-EIAO	Implemented
S5.4.1	N5	Loading/ unloading activities should be carried out inside the full enclosure of mucking out points.	Reduce the noise levels of loading/ unloading activities	Contractor	Mucking out locations	Construction stage		· Annex 5, TM-EIAO	N/A
S5.4.1	N6	Sequencing operation of construction plants where practicable.	Operate sequentially within the same work site to reduce the construction airborne noise	Contractor	All construction sites where practicable	Construction stage		· Annex 5, TM-EIAO	N/A
S5.4.1	N7	Implement a noise monitoring programme under EM&A programme.	Monitor the construction noise levels at the selected representative locations	Contractor	Selected rep. noise monitoring station	Construction stage		· TM-EIAO	Implemented
Water Quality (Construction Phase)
S6.9.1.1	W1	In accordance with the Practice Note for Professional Persons on Construction Site Drainage, Environmental Protection Department, 2023 (ProPECC PN 2/23), construction phase mitigation measures shall include the following: Construction Runoff · At the start of site establishment, perimeter cut-off drains to direct off-site water around the site should be constructed with internal drainage works and erosion and sedimentation control facilities implemented. Channels (both temporary and permanent drainage pipes and culverts), earth bunds or sandbag barriers should be provided on site to direct stormwater to silt removal facilities. The design of the temporary on-site drainage system will be undertaken by the contractor prior to the commencement of construction; · The dikes or embankments for flood protection should be implemented around the boundaries of earthwork areas. Temporary ditches should be provided to facilitate the runoff discharge into an appropriate watercourse, through a silt/ sediment trap. The sediment/ silt traps should be incorporated in the permanent drainage channels to enhance deposition rates; · The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 2/23, which states that the retention time for silt/ sand traps should be 5 minutes under maximum flow conditions. Sizes may vary depending upon the flow rate, but for a flow rate of 0.1 m³/s a sedimentation basin of 30 m³ would be required and for a flow rate of 0.5 m³/s the basin would be 150 m³. The detailed design of the sand/ silt traps shall be undertaken by the contractor prior to the commencement of construction; · All exposed earth areas should be completed and vegetated as soon as possible after earthworks have been completed, or alternatively, within 14 days of the cessation of earthworks where practicable. Exposed slope surfaces should be covered by tarpaulin or other means; · The overall slope of the site should be kept to a minimum to reduce the erosive potential of surface water flows, and all traffic areas and access roads protected by coarse stone ballast. An additional advantage accruing from the use of crushed stone is the positive traction gained during prolonged periods of inclement weather and the reduction of surface sheet flows; · All drainage facilities and erosion and sediment control structures should be regularly inspected and maintained to ensure proper and efficient operation at all times and particularly following rainstorms. Deposited silt and grit should be removed regularly and disposed of by spreading evenly over stable, vegetated areas; · Measures should be taken to minimize the ingress of site drainage into excavations. If the excavation of trenches in wet periods is necessary, they should be dug and backfilled in short sections wherever practicable. Water pumped out from trenches or foundation excavations should be discharged into storm drains via silt removal facilities; · Open stockpiles of construction materials (for example, aggregates, sand and fill material) of more than 50m³ should be covered with tarpaulin or similar fabric during rainstorms. Measures should be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system; · Manholes should always be adequately covered and temporarily sealed so as to prevent silt, construction materials or debris being washed into the drainage system and storm runoff being directed into foul sewers; · Precautions be taken at any time of year when rainstorms are likely, actions to be taken when a rainstorm is imminent or forecasted, and actions to be taken during or after rainstorms are summarized in Appendix A2 of ProPECC PN 2/23. Particular attention should be paid to the control of silty surface runoff during storm events, especially for areas located near steep slopes; · All vehicles and plant should be cleaned before leaving a construction site to ensure no earth, mud, debris and the like is deposited by them on roads. An adequately designed and site wheel washing facilities should be provided at every construction site exit where practicable. Wash-water should have sand and silt settled out and removed at least on a weekly basis to ensure the continued efficiency of the process. The section of access road leading to, and exiting from, the wheel wash bay to the public road should be paved with sufficient backfall toward the wheel wash bay to prevent vehicle tracking of soil and silty water to public roads and drains; · Oil interceptors should be provided in the drainage system downstream of any oil/ fuel pollution sources. The oil interceptors should be emptied and cleaned regularly to prevent the release of oil and grease into the storm water drainage system after accidental spillage. A bypass should be provided for the oil interceptors to prevent flushing during heavy rain; · Construction solid waste, debris and rubbish on site should be collected, handled and disposed of properly to avoid water quality impacts; · All fuel tanks and storage areas should be provided with locks and sited on sealed areas, within bunds of a capacity equal to 110% of the storage capacity of the largest tank to prevent spilled fuel oils from reaching water sensitive receivers nearby; · Adopt best management practices; · All earth works should be conducted sequentially to limit the amount of construction runoff generated from exposed areas during the wet season (April to September) as far as practicable.	To minimize water quality impact from the construction site runoff and general construction activities	Contractor	All construction sites where practicable	Construction stage		· Water Pollution Control Ordinance · ProPECC PN 2/23 · TM-EIAO · TM-DSS	Implemented, rectified after observation for 14^th bullet. Implemented for the 1^st, 3^rd, 7^th to 11^th, 13^th, 14^th to 16^th bullets N/A for other bullets
S6.9.1.2	W2	Tunnelling Works and Underground Works · Cut-&-cover tunnelling work should be conducted sequentially to limit the amount of construction runoff generated from exposed areas during the wet season (April to September) as far as practicable. · Uncontaminated discharge should pass through sedimentation tanks prior to off-site discharge; · The wastewater with a high concentration of SS should be treated (e.g. by sedimentation tanks with sufficient retention time) before discharge. Oil interceptors would also be required to remove oil, lubricants and grease from the wastewater; · Direct discharge of the bentonite slurry (as a result of D-wall) is not allowed. It should be reconditioned and reused wherever practicable. Temporary storage locations (typically a properly closed warehouse) should be provided on site for any unused bentonite that needs to be transported away after all the related construction activities area completed. The requirements in ProPECC PN 2/23 should be adhered to in the handling and disposal of bentonite slurries.	To minimize construction water quality impact from tunnelling works	Contractor	All tunnelling portion	Construction stage		· Water Pollution Control Ordinance · ProPECC PN 2/23 · TM-DSS · TM-EIAO	N/A
S6.9.1.3	W3	Sewage Effluent · Portable chemical toilets and sewage holding tanks are recommended for handling the construction sewage generated by the workforce. A licensed contractor should be employed to provide appropriate and adequate portable toilets and be responsible for appropriate disposal and maintenance.	To minimize water quality from sewage effluent	Contractor	All construction sites where practicable	Construction stage		· Water Pollution Control Ordinance · TM-DSS	Implemented
S6.9.1.5	W4	Groundwater from Potential Contaminated Area: · No direct discharge of groundwater from contaminated areas should be adopted. · A discharge license under the WPCO through the Regional Office of EPD for groundwater discharge should be applied. Prior to the excavation works within these potentially contaminated areas, the groundwater quality should be reviewed during the process of discharge license application. The compliance to the Technical Memorandum on Standards for Effluents Discharged into Drainage on Sewerage Systems, Inland and Coastal Waters (TM-DSS) and the existence of prohibited substance should be confirmed. If the review results indicated that the groundwater to be generated from the excavation works would be contaminated, the contaminated groundwater should be either properly treated in compliance with the requirements of the TM-DSS or properly recharged into the ground. · If wastewater treatment is deployed, the wastewater treatment unit shall deploy suitable treatment process (e.g. oil interceptor / activated carbon) to reduce the pollution level to an acceptable standard and remove any prohibited substances (e.g. TPH) to undetectable range. All treated effluent from wastewater treatment plant shall meet the requirements as stated in TM-DSS and should be discharged into the foul sewers. · If groundwater recharging wells are deployed, recharging wells should be installed as appropriate for recharging the contaminated groundwater back into the ground. The recharging wells should be selected at places where the groundwater quality will not be affected by the recharge operation as indicated in the Section 2.3 of TM-DSS. The baseline groundwater quality shall be determined prior to the selection of the recharge wells, and submit a working plan (including the laboratory analytical results showing the quality of groundwater at the proposed recharge location(s) as well as the pollutant levels of groundwater to be recharged) to EPD for agreement. Pollution levels of groundwater to be recharged shall not be higher than pollutant levels of ambient groundwater at the recharge well. Prior to recharge, any prohibited substances such as TPH products should be removed as necessary by installing the petrol interceptor.	To minimize groundwater quality impact from contaminated area	Contractor	Excavation areas where contamination is found	Construction stage		· Water Pollution Control Ordinance · TM-DSS · TM-EIAO	N/A
S6.9.1.6	W6	Accidental Spillage In order to prevent accidental spillage of chemicals, the following is recommended: · All the tanks, containers, storage area should be bunded and the locations should be locked as far as possible from the sensitive watercourse and stormwater drains; · The Contractor should register as a chemical waste producer if chemical wastes would be generated. Storage of chemical waste arising from the construction activities should be stored with suitable labels and warnings. Disposal of chemical wastes should be conducted in compliance with the requirements as stated in the Waste Disposal (Chemical Waste) (General) Regulation.	To minimize water quality impact from accidental spillage	Contractor	All construction site where practicable	Construction stage		· Water Pollution Control Ordinance · ProPECC PN 2/23 · TM-EIAO · TM-DSS	Implemented, rectified after observation for 1^st bullet. Implemented for others bullet.
Waste Management (Construction Waste)
S7.4.1	WM1	On-site sorting of C&D material · Geological assessment should be carried out by competent persons on site during excavation to identify materials which are not suitable to use as aggregate in structural concrete (e.g. volcanic rock, Aplite dyke rock, etc.). Volcanic rock and Aplite dyke rock should be separated at the source sites as far as practicable and stored at designated stockpile area preventing them from delivering to crushing facilities. The crushing plant operator should also be reminded to set up measures to prevent unsuitable rock from ending up at concrete batching plants and be turned into concrete for structural use. Details regarding control measures at source site and crushing facilities should be submitted by the Contractor for the Engineer to review and agree. In addition, site records should also be kept for the types of rock materials excavated and the traceability of delivery will be ensured with the implementation of Trip Ticket System and enforced by site supervisory staff as stipulated under DEVB TC(W) No. 6/2010 for tracking of the correct delivery to the rock crushing facilities for processing into aggregates. Alternative disposal option for the reuse of volcanic rock and Aplite Dyke rock, etc. should be explored.	Separation of unsuitable rock from ending up at concrete batching plants and be turned into concrete for structural use	Contractor	All construction sites	Construction stage		· DEVB (W) No. 6/2010	N/A
S7.5.1	WM2	Construction and Demolition Material · Maintain temporary stockpiles and reuse excavated fill material for backfilling and reinstatement; · Carry out on-site sorting; · Make provisions in the Contract documents to allow and promote the use of recycled aggregates where appropriate; · Adopt ‘selective demolition’ technique to demolish the existing structures and facilities with a view to recovering broken concrete effectively for recycling purpose, where possible; · Implement a trip-ticket system for each works contract to ensure that the disposal of C&D materials is properly documented and verified; and · Implement an enhanced Waste Management Plan similar to ETWBTC (Works) No. 19/2005 – “Environmental Management on Construction Sites” to encourage on-site sorting of C&D materials and to minimize their generation during the course of construction.	Good site practice to minimize the waste generation and recycle the C&D materials as far as practicable so as to reduce the amount for final disposal	Contractor	All construction sites	Construction stage		· Land (Miscellaneous Provisions) Ordinance · Waste Disposal Ordinance · ETWB TCW No. 19/2005	Implemented for the 1^st, 2^nd, 3^rd, 5^th, 6^th bullets N/A for other bullets
S7.5.1	WM3	C&D Waste · Standard formwork or pre-fabrication should be used as far as practicable in order to minimize the arising of C&D materials. The use of more durable formwork or plastic facing for the construction works should be considered. Use of wooden hoardings should not be used, as in other projects. Metal hoarding should be used to enhance the possibility of recycling. The purchasing of construction materials will be carefully planned in order to avoid over ordering and wastage; · The Contractor should recycle as much of the C&D materials as possible on-site. Public fill and C&D waste should be segregated and stored in different containers or skips to enhance reuse or recycling of materials and their proper disposal. Where practicable, concrete and masonry can be crushed and used as fill. Steel reinforcement bar can be used by scrap steel mills. Different areas of the sites should be considered for such segregation and storage.	Good site practice to minimize the waste generation and recycle the C&D materials as far as practicable so as to reduce the amount for final disposal	Contractor	All construction sites	Construction stage		· Land (Miscellaneous Provisions) Ordinance · Waste Disposal Ordinance · ETWB TCW No. 19/2005	N/A
S7.5.1	WM4	Excavated Contaminated Soils · Details of the mitigation measures on handling of the contaminated soil shall be referred to Section on Land Contamination below.	The contaminated soil will be excavated for on-site reuse	Contractor	PBH4	Prior to commencement of construction works within the contaminated area		· Practice Guide (PG) for Investigation and Remediation of Contaminated Land · GN/GM for land contamination	N/A
S7.5.1	WM5	Land-based Sediment · All construction plant and equipment shall be designed and maintained to minimize the risk of silt, sediments, contaminants or other pollutants being released into the water column or deposited in the locations other than designated location; · All vessels shall be sized such that adequate draft is maintained between vessels and the sea bed at all states of the tide to ensure that undue turbidity is not generated by turbulence from vessel movement or propeller wash; · Before moving the vessels which are used for transporting dredged material, excess material shall be cleaned from the decks and exposed fittings of vessels and the excess materials shall never be dumped into the sea except at the approved locations; · Adequate freeboard shall be maintained on barges to ensure that decks are not washed by wave action. · The Contractors shall monitor all vessels transporting material to ensure that no dumping outside the approved location takes place. The Contractor shall keep and produce logs and other records to demonstrate compliance and that journeys are consistent with designated locations and copies of such records shall be submitted to the engineers; · The Contractors shall comply with the conditions in the dumping license. · All bottom dumping vessels (Hopper barges) shall be fitted with tight fittings seals to their bottom openings to prevent leakage of material; · The material shall be placed into the disposal pit by bottom dumping; · Contaminated marine mud shall be transported by spit barge of not less than 750m³ capacity and capable of rapid opening and discharge at the disposal site; · Discharge shall be undertaken rapidly, and the hoppers shall be closed immediately. Material adhering to the sides of the hopper shall not be washed out of the hopper and the hopper shall remain closed until the barge returns to the disposal site. · For Type 3 special disposal treatment, sealing of contaminant with geosynthetic containment before dropping designated mud pit would be a possible arrangement. A geosynthetic containment method is a method whereby the sediments are sealed in geosynthetic containers and, the containers would be dropped into the designated contaminated mud pit where they would be covered by further mud disposal and later by the mud pit capping at the disposal site, thereby fulfilling the requirements for fully confined mud disposal.	To control pollution due to marine sediment	Contractor	Along CKR alignment	Construction stage		· ETWB TCW No. 34/2002	N/A
S7.5.1	WM6	Chemical Waste · Chemical waste that is produced, as defined by Schedule 1 of the Waste Disposal (Chemical Waste) (General) Regulation, should be handled in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes; · Containers used for the storage of chemical wastes should be suitable for the substance they are holding, resistant to corrosion, maintained in a good condition, and securely closed, have a capacity of less than 450 L unless the specification has been approved by EPD, and display a label in English and Chinese in accordance with instructions prescribed in Schedule 2 of the regulation; · The storage area for chemical wastes should be clearly labelled and used solely for the storage of chemical waste, enclosed on at least 3 sides, have an impermeable floor and bunding of sufficient capacity to accommodate 110% of the volume of the largest container or 20% of the total volume of waste stored in that area, whichever is the greatest, have adequate ventilation, covered to prevent rainfall entering, and arranged so that incompatible materials are adequately separated; · Disposal of chemical waste should be via a licensed waste collector, be to a facility licensed to receive chemical waste, such as the Chemical Waste Treatment Centre which also offers a chemical waste collection service and can supply the necessary storage containers, or be to a reuser of the waste, under approval from EPD.	Control the chemical waste and ensure proper storage, handling and disposal	Contractor	All construction sites	Construction stage		· Waste Disposal (Chemical Waste) (General) Regulation · Code of Practice on the Packaging, Labelling and Storage of Chemical Waste	Implemented for the 2^nd and 3^rd bullet. N/A for other bullet.
S7.5.1	WM7	General Refuse · General refuse generated on-site should be stored in enclosed bins or compaction units separately from construction and chemical wastes; · A reputable waste collector should be employed by the Contractor to remove general refuse from the site, separately from construction and chemical wastes, on a daily basis to minimize odour, pest and litter impacts. Burning of refuse on construction sites is prohibited by law. · Aluminium cans are often recovered from the waste stream by individual collectors if they are segregated and made easily accessible. Separate labelled bins for their deposit should be provided if feasible; · Office wastes can be reduced through the recycling of paper if volumes are large enough to warrant collection. Participation in a local collection scheme should be considered by the Contractor.	Minimize production of the general refuse and avoid odour, pest and litter impacts	Contractor	All construction sites	Construction stage		· Waste Disposal Ordinance	Implemented.
Hazard to Life
S9.18	H8	The driver and his assistant should be physically healthy, experienced and have good safe driving records. The driver should hold a proper driving licence for the approved transport truck. Dedicated training programme and regular road safety briefing sessions/ workshops should be provided to enhance their safe driving attitude and practice. Smoking should be strictly prohibited.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage		-	N/A
S9.18	H9	Emergency response plans in case of road accident should be prepared and implemented. The driver and his assistant should be familiar with the emergency procedures including evacuation, and proper communication/ fire-fighting equipment should be provided to the driver and his assistant.	To reduce the risk during explosives transport	Contractor	Works areas at which explosives would be used	Construction stage		-	N/A
Landscape & Visual
S10.10.1 Table 10.11	LV3	Good Site Management · Large temporary stockpiles of excavated material shall be covered with unobtrusive sheeting to prevent dust and dirt spreading to adjacent landscape areas and vegetation, and to create a neat and tidy visual appearance. · Construction plant and building material shall be orderly and carefully stored in order to create a neat and tidy visual appearance.	Minimize visual impact	Contractor	Within Project site	Construction stage		-	Implemented for the 2^nd bullet N/A for another bullet
S10.10.1 Table 10.11	LV4	Screen Hoarding · Decorative screen hoarding should be erected to screen the public from the construction area. It should be designed to be compatible with the existing urban context.	Minimize visual impact	Contractor	Within Project site	Construction stage		-	N/A
S10.10.1 Table 10.11	LV5	Lighting Control during Construction · All lighting in the construction site shall be carefully controlled to minimize light pollution and night-time glare to nearby residencies and GIC. The Contractor shall consider other security measures, which shall minimize the visual impacts.	Minimize visual impact	Contractor	Within Project site	Construction stage		-	N/A
S10.10.1 Table 10.11	LV6	Erosion Control · The potential for soil erosion shall be reduced by minimizing the extent of vegetation disturbance on site and by providing a protective cover over newly exposed soil.	Minimize landscape impact	Contractor	Within Project site	Construction stage		-	N/A
S10.10.1 Table 10.11	LV7	Tree Protection & Preservation · Carefully protected during construction. Tree protection measures will be detailed at the Tree Removal Application stage and plans submitted to the relevant Government Department for approval in due course in accordance with ETWB TC No. 3/2006.	Minimize landscape and visual impact	Contractor	Within Project site	Construction stage		· ‘Guidelines for Tree Risk Management and Assessment Arrangement on an Area Basis and on a Tree Basis’, Greening, Landscape and Tree Management (GLTM) Section, DEVB · Latest recommended horticultural practices from GLTM Section, DEVB	N/A
S10.10.1 Table 10.11	LV8	Tree Transplantation · For trees unavoidably affected by the Project that have to be removed, where practical transplantation will be chosen as the top priority method of removal. If this is not possible or practical compensatory planting will be provided for trees unavoidably felled (See LV10). For trees unavoidably affected by the Project works that are transplanted, transplantation must be carried out in accordance with ETWB TCW 2/2004 and 3/2006.	Minimize landscape and visual impact	Contractor	Within Project site and designated off-site locations	Prior to Construction stage		· ETWB TCW 3/2006 · Latest recommended horticultural practices from Greening, Landscape and Tree Management (GLTM) Section, DEVB · ETWB TCW 2/2004	N/A
S10.10.1 Table 10.11	LV9	Compensatory Planting · For trees unavoidably affected by the Project that have to be removed, where practical transportation will be chosen as the top priority method of removal but if this is not possible or practical compensatory planting will be provided for trees unavoidably felled. All felled trees shall be compensated for by planting trees to the satisfaction of relevant Government projects. Required numbers and locations of compensatory trees shall be determined and agreed separately with Government during the Tree Felling Application process under ETWB TC 3/2006. · Compensatory tree planting may be incorporated into public open spaces and along roadside amenity areas affected by the construction works and therefore be part of the bigger wider planting plans. Onsite compensation planting is preferred but, if necessary, additional receptor sites outside the Works Area shall be agreed separately with the Government during the Tree Felling Application process.	Minimize visual impact and also enhance landscape	Contractor	Within Project site	Construction stage		· ETWB TCW 3/2006 · Latest recommended horticultural practices from Greening, Landscape and Tree Management (GLTM) Section, DEVB · ETWB TCW 2/2004	N/A
S10.10.1 Table 10.11	LV10	Screen Planting · Tall screen/buffer trees, shrubs and climbers should be planted, in so far as is possible, to soften and screen proposed structures such as roads and central strip, vertical edges and buildings and to enhance streetscape greening effect where appropriate. Indiscriminate use of trees for screening must be avoided and the principle of ‘right tree for the right place’ must be followed. This detail will be provided at the Detailed Design stage. This measure may additionally form part of the compensatory planting and will improve and create a pleasant pedestrian environment.	Minimize visual impact and also enhance landscape.	Contractor	Within Project Site	Construction Phase		· Guidelines on Greening of Noise Barriers, issued April 2012, GLTMS, DevB · ETWB TCW 2/2004	N/A
S10.10.1 Table 10.11	LV12	Reinstatement · All works areas, excavated areas and disturbed areas for tunnel construction and temporary road diversion or any other proposed works shall be reinstated to former conditions or better, with reasonable landscape treatment and to the satisfaction of the relevant Government departments. (Specific mitigation for disturbance to public open space is detailed separately under LV14.)	Minimize landscape impact	Contractor	Within Project Site	Construction Phase		· N/A	N/A
Cultural Heritage Impact (Construction Phase)
S11.4.4	CH1	The contractor should be alerted during the construction on the possibility of locating archaeological remains and as a precautionary measure, AMO shall be informed immediately in case of discovery of antiquities or supposed antiquities in the subject sites.	To preserve any cultural heritage items which may be removed and damaged by the excavation	Contractor	During construction works for cut and cover tunnels	Construction stage		· AMOs requirements	N/A
EM&A Project
S13.2	EM1	An Independent Environmental Checker needs to be employed as per the EM&A Manual	Control EM&A Performance	Highways Department	All construction sites	Construction stage		· EIAO Guidance Note No. 4/2010 · TM-EIAO	Implemented
S13.2-13.4	EM2	· An Environmental Team needs to be employed as per the EM&A Manual; · Prepare a systematic Environmental Management Plan to ensure effective implementation of the mitigation measures; · An environmental impact monitoring needs to be implemented by the Environmental Team to ensure all the requirements given in the EM&A Manual are fully complied with.	Perform environmental monitoring & auditing	Highways Department/ Contractor	All construction sites	Construction stage		· EIAO Guidance Note No. 4/2010 · TM-EIAO	Implemented

Construction Activities Undertaken in Kai Tak West Area	Progress
· Finishes (floor & wall) at Kai Tak Phase 2B Landscaped Deck	95%
· Staircase Construction at Kai Tak Phase 2B Landscaped Deck	40%

Party	Role	Position	Name	Contact No.
Arup – Mott MacDonald Joint Venture	Engineer’s Representative (“ER”)	Resident Engineer (Environmental)	Ms. Jim Li	9120 1157
ERM – Hong Kong Limited	Independent Environmental Checker (“IEC”)	IEC	Ms. Mandy To	2271 3313
Aurecon Hong Kong Limited	Environmental Team (“ET”)	ET Leader	Mr. F.C. Tsang	3664 6801
Build King – Tung Lee Joint Venture	Contractor	Environmental Officer	Mr. Tony Tsoi	9689 8956

Reporting period	Quantity
	Inert C&D Materials (in ‘000 kg)	Chemical Waste (in ‘kg)	Non-inert C&D Materials
			Others, e.g. General Refuse disposed of at Landfill (in ‘000kg)	Recycled materials
				Paper/ cardboard (in ‘000kg)	Plastics (in ‘000 kg)	Metals (in ‘000 kg)
December 2025	0.00	0.00	15.27	0.00	0.00	0.00

Complaint Received via Project Hotline			Complaint Received via 1823 or from other government departments

Contractor notify ER, ET and IEC			ER notify Contractor, ET and IEC

Contractor log complaint and date of receipt onto the complaint database. Contractor, ER and ET to conduct investigation of complaint

If complaint is considered not valid			If complaint is found valid

ET or ER to reply to the complainant if necessary			Contractor to identify and implement remedial measures in consultation with the IEC, ET and ER.

			The ER, ET and IEC to review the effectiveness of the Contractor’s remedial measures and the updated situation; ET to undertake additional monitoring and audit to verify the situation if necessary and oversee that circumstances leading to the complaint do not recur. ER to conduct further inspection as necessary.

If the complaint is referred by the EPD, the Contractor to prepare interim report on the status of the complaint investigation and follow-up actions stipulated above, including the details of the remedial measures and additional monitoring identified or already taken, for submission to EPD within the timeframe assigned by the EPD

The ET to record the details of the complaint, results of the investigation, subsequent actions taken to address the complaint and updated situation including the effectiveness of the remedial measures, supported by regular and additional monitoring results in the monthly EM&A reports

Date	Environmental Observations	Follow-up Status
3 December 2025	1. Chemical containers were observed without drip tray(s), drip tray(s) should be provided to chemicals to avoid leakage.	1. Chemical containers were relocated and place inside the drip tray. (Rectified on 9 December 2025)
12 December 2025	Nil.	Nil.
19 December 2025	1. A chemical container was without drip tray, chemical container should be kept on drip tray to avoid leakage.	1. The concerned chemical container was removed. (Rectified on 23 December 2025)
24 December 2025	1. Drip tray should be provided to chemical tank at landscape deck to avoid leakage.	1. The concerned chemical container was removed. (Rectified on 31 December 2025)

EP Condition (EP–457/2013/D)	Submission	Submission Date
3.4	Monthly EM&A Report – Kai Tak Phase 2B Landscape Deck (November 2025)	12 December 2025

EXECUTIVE SUMMARY

Potential environmental impacts arising from the above construction activities are mainly associated with construction dust, construction noise, water pollution control, and waste management.

1 INTRODUCTION

1.1 Purpose of the Report

1.1.1 This is the 93rd monthly EM&A Report which summaries the impact monitoring results and audit findings for the Project during the reporting period between 1 and 31 December 2025.

1.2 Report Structure

1.2.1 This monthly EM&A Report is organized as follows:

2 Project Information

2.1 Background

2.1.4 The site layout plan of the Project is shown in Figure 1.1.

2.2 Site Description

2.2.1 The major construction activities under this Project include:

2.3 Construction Programme and Activities

2.3.1 The major construction activities undertaken in the reporting month are summarized in Table 2.1.

2.3.2 The construction programme is presented in Appendix A.

2.4 Project Organization

2.4.1 The project organization structure is shown in Appendix B. The key personnel contact names and numbers for the Project are summarized in Table 2.2.

2.5 Status of Environmental Licences, Notification and Permits

2.5.1 Relevant environmental licenses, permits and/or notifications on environmental protection for this Project and valid in the reporting month are summarized in Table 2.3.

3 Environmental Monitoring Requirements

3.1 Construction Dust Monitoring

3.1.3 The monitoring station for construction dust monitoring pertinent to the Project has been identified based on the approved EM&A Manual for the Project. The location of the construction dust monitoring station is summarized in Table 3.1 and shown in Figure 3.1.

3.2 Construction Noise Monitoring

3.2.3 The monitoring stations for construction noise monitoring pertinent to the Project have been identified based on the approved EM&A Manual for the Project. Locations of the noise monitoring stations are summarized in Table 3.3 and shown in Figure 3.2.

3.3 Landscape and Visual

3.3.1 As per the EM&A Manuals, the landscape and visual mitigation measures shall be implemented and site inspections should be undertaken once every two weeks during the construction period. A summary of the implementation status is presented in Section 6.

4 Implementation Status of Environmental Mitigation Measures

5 Monitoring Results

5.1 Construction Dust Monitoring

5.1.2 The event and action plan are annexed in Appendix E.

5.1.3 Major dust sources during the monitoring included construction dust and nearby traffic emission.

5.2 Regular Construction Noise Monitoring

5.2.2 No exceedance of Action and Limit level of noise was recorded in the reporting month.

5.2.3 The event and action plan are annexed in Appendix E.

5.2.4 Major noise sources during the monitoring included construction noise from the Project site and nearby traffic noise.

5.3 Waste Management

5.3.1 C&D materials and wastes sorting were carried out on site. Receptacles were available for C&D wastes and general refuse collection.

5.3.4 The Contractor is reminded that chemical waste containers should be properly treated and stored temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.

5.4 Landscape and Visual

5.4.1 Bi-weekly inspection of the implementation of landscape and visual mitigation measures was conducted on 10 and 24 December 2025. A summary of the site inspection is provided in Appendix C. The observations and recommendations made during the site inspections are presented in Table 6.1.

6 ENVIRONMENTAL SITE INSPECTION AND AUDIT

6.1.1 Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures for the Project. A summary of the mitigation measures implementation schedule is provided in Appendix C.

6.1.3 All follow-up actions requested by Contractor's ET during the site inspection were undertaken as reported by the Contractor and confirmed in the following weekly site inspection conducted during the reporting period.

7 Environmental Non-conformance

7.1 Summary of Monitoring Exceedances

7.1.2 No exceedance of Action and Limit level of noise was recorded in the reporting month.

7.2 Summary of Environmental Non-Compliance

7.2.1 No environmental non-compliance was recorded in the reporting month.

7.3 Summary of Environmental Complaints

7.3.1 No environmental related complaints, notification of summons and successful prosecution were received in the reporting month. Cumulative statistics on environmental complaint is provided in Appendix F.

7.4 Summary of Environmental Summon and Successful Prosecutions

7.4.1 No environmental related prosecution or notification of summons was received in the reporting month. Cumulative statistics on notification of summons and successful prosecutions is provided in Appendix F.

8 FUTURE KEY ISSUES

8.1 Construction Programme for the Next Three Months

8.1.1 The major construction works in January 2026 is provided in Table 8.1.

8.1.2 All construction works of Contract No. HY/2014/07 Central Kowloon Route – Kai Tak West (FEP-01/457/2013/C) are substantially completed in September 2025. The proposal of termination of the EM&A Programme under FEP-01/457/2013/C was submitted on 28 November 2025.

8.2 Key Issues for the Coming Month

8.2.1 Potential environmental impacts arising from the above construction activities are mainly associated with construction dust, construction noise, and waste management.

8.3 Monitoring Schedule for the Coming Month

8.3.1 EM&A monitoring, including both construction dust monitoring (monitoring station E-A14a) and construction noise monitoring (monitoring station E-N12a and E-N21a) will be conducted by Contract No. HY/2023/08 Central Kowloon Route – Remaining Works under EP-457/2013/D from 1 October 2025.

9 ConclusionS AND RECOMMENDATIONS

9.1 Conclusions

9.1.2 No exceedance of Action and Limit level of noise was recorded in the reporting month.

9.1.3 4 nos. of environmental site inspections were carried out in December 2025. Recommendations on remedial actions were given by ET and IEC to the Contractor for the deficiencies identified during the site audit.

9.1.4 No environmental related complaints, notification of summons and successful prosecution were received in the reporting month.

9.1.5 No environmental related notification of summons and successful prosecution were received in the reporting month.

9.1.6 All construction works of Contract No. HY/2014/07 Central Kowloon Route – Kai Tak West (FEP-01/457/2013/C) are substantially completed in September 2025. The proposal of termination of the EM&A Programme under FEP-01/457/2013/C was submitted on 28 November 2025.

9.2 Recommendations

9.2.1 According to the environmental site inspections performed in the reporting month, the following recommendations were provided:

Air Quality Impact

· The contractor was reminded to provide sandbags at the boundary of breaking area, to prevent surface runoff by watering at MTK site.

Construction Noise Impact

· No specific observation was identified in the reporting month.

Water Quality Impact

· No specific observation was identified in the reporting month.

Chemical and Waste Management

· The contractor was reminded to provide sandbag to prevent the soil and concrete into the drainages.

Landscape & Visual Impact

· No specific observation was identified in the reporting month.

Permits/licenses

1.1.1 This is the 93^rd monthly EM&A Report which summaries the impact monitoring results and audit findings for the Project during the reporting period between 1 and 31 December 2025.