C&D	Construction and Demolition
CAP	Contamination Assessment Plan
CEDD	Civil Engineering and Development Department
CWD	Chinese White Dolphin
DCM	Deep Cement Mixing
DO	Dissolved Oxygen
EIA	Environmental Impact Assessment
EIAO	Environmental Impact Assessment Ordinance
EIS	Ecologically Important Stream
EM&A	Environmental Monitoring and Audit
EP	Environmental Permit
EPD	Environmental Protection Department
ER	Engineer's Representative
ERM	ERM-Hong Kong, Limited
ET	Environmental Team
HVS	High Volume Sampler
IEC	Independent Environmental Checker
PDA	Planned Development Area
PME	Powered Mechanical Equipment
QPME	Quality Powered Mechanical Equipment
RAP	Remediation Action Plan
RR	Remediation Report
RTTM	Real Time Tracking and Monitoring
SS	Suspended Solid
TCB	Tung Chung Bay
TCE	Tung Chung East
TCNTE	Tung Chung New Town Extension
TCW	Tung Chung West
The Project	Tung Chung New Town Extension (East)
THW	Tai Ho Wan
TSP	Total Suspended Particulate
Updated EM&A Manual	Updated Environmental Monitoring and Audit Manual for Tung Chung New Town Extension prepared by ERM under Agreement No. CE 60/2017 (EP) and deposited to EPD under Environmental Permit No. EP-519/2016

Executive Summary

Tung Chung New Town Extension (TCNTE) is one of the major initiatives under the Government's multi-pronged approach to increase land supply to meet Hong Kong's medium- to long-term needs for housing, economic and social developments. The Environmental Impact Assessment (EIA) Report for TCNTE (Register No. AEIAR-196/2016) was approved on 8 April 2016 and the Environmental Permit (EP) No. EP-519/2016, covering the construction and operation of TCNTE, was granted on 9 August 2016. The EIA Report and EP cover both Tung Chung East (TCE) and Tung Chung West (TCW). ERM-Hong Kong, Limited (ERM) is commissioned to undertake the role of Environmental Team (ET) for the construction and operation of TCE Project (“the Project”) in accordance with the requirements specified in the EP, Updated Environmental Monitoring and Audit (EM&A) Manual, EIA Report of the TCNTE project and other relevant statutory requirements.

The construction of the Contract No. NL/2017/03 - Tung Chung New Town Extension – Reclamation and Advance Works (“Contract 1”) at TCE commenced on 9 July 2018.

The construction of the Contract No. NL/2020/02 - Tung Chung New Town Extension – Salt Water Supply System (“Contract 2”) at TCE commenced on 4 September 2021.

The construction of the Contract No. NL/2020/03 - Tung Chung New Town Extension – Major Infrastructure Works in Tung Chung East (“Contract 3”) at TCE commenced on 5 November 2021.

The construction of the Contract No. NL/2020/07 - Tung Chung New Town Extension – Tai Ho Interchange (“Contract 7”) at TCE commenced on 15 March 2022.

This is the Monthly EM&A report presenting the EM&A works carried out during the period from 1 to 31 May 2022 for the TCE Project in accordance with the Updated EM&A Manual.

A summary of monitoring and audit activities conducted in the reporting period is listed below:

Air Quality Monitoring 5 sessions

Noise Monitoring 5 sessions

Water Quality Monitoring 13 sessions

Preserved Plant Species Monitoring 1 session

Transplanted Plant Species Monitoring 4 session

Environmental Site Inspection

- Contract 1 4 sessions

- Contract 2 4 sessions

- Contract 3 4 sessions

- Contract 7 5 sessions

Environmental Management Meeting

- Contract 1 1 session

- Contract 2 1 session

- Contract 3 1 session

- Contract 7 1 session

Environmental auditing works, including weekly site inspections of construction works conducted by the ET, audit of works vessels, audit of implementation of Complaint Management Plan, Dolphin Watching Plan, Works Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response, Waste Management Plan and Detailed Preservation and/or Translocation of Plant Species of Conservation Importance were conducted in the reporting period. Based on the audit results and the observation for the reporting period, environmental pollution control and mitigation measures for the Project were properly implemented.

Breaches of Action and Limit Levels for Air Quality

No exceedance of Action and Limit Levels was recorded for construction air quality monitoring in the reporting period.

Breaches of Action and Limit Levels for Noise

No exceedance of Limit Levels was recorded for construction noise monitoring in the reporting period. However, two (2) Action Level were triggered from two (2) environmental complaints related to noise nuisance in the reporting period. Investigations were conducted for the exceedances in accordance with the Event and Action Plan.

Breaches of Action and Limit Levels for Water Quality

No exceedance of Action and Limit Levels was recorded for water quality impact monitoring in the reporting period.

Soft Shore Ecological Monitoring

No impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan was scheduled during the reporting period.

Environmental Complaints, Non-compliance & Summons

There was no notification of summons or prosecution recorded in the reporting period.

Three (3) environmental complaints related to Contract 3 were received in the reporting period. Investigations were conducted for the environmental complaints in accordance with the complaint handling process as stated in the Complaint Management Plan.

Reporting Change

There was no reporting change in the reporting period.

Key Issues For The Coming Month

Potential environmental impacts arising from the upcoming construction activities in the next reporting period of June 2022 are mainly associated with dust emission, noise from barge and plant operation during normal working hours and restricted hours, elevation in SS due to marine filling works, disturbance to Chinese White Dolphin (CWD) during marine works, handling and storage of C&D materials generated from construction activities, efficiency of wastewater and drainage management and tree protection. The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures. The ET will also recommend to the Contractor about the environmental toolbox topics on the abovementioned key issues for the coming month.

1 Introduction

1.1 Background

ERM-Hong Kong, Limited (ERM) is commissioned to undertake the role of Environmental Team (ET) for the construction and operation of TCE Project (“the Project”) in accordance with the requirements specified in the EP, Updated Environmental Monitoring and Audit (EM&A) Manual ([1]), EIA Report of the TCNTE project ([2]) and other relevant statutory requirements.

The TCNTE comprises the following elements:

(a) TCE Project

1. Reclamation of the seabed by a non-dredged method at TCE to form a total of about 130 hectares of land;

2. Construction of about 4.9 kilometers of seawalls, with an eco-shoreline, three drainage box culvert outfalls, three circulation drains and a seawater intake at TCE;

3. Provision of infrastructure for Tung Chung Area 58, including construction of a single two-lane road with a footpath and the associated utility works;

4. Construction of proposed open space;

5. Construction of roads, footpaths, cycle tracks and the associated junction / road improvement works;

6. Engineering infrastructure works covering drainage, sewerage, waterworks (including a fresh water service reservoir, a salt water service reservoir and a salt water pumping station), common utility tunnels and landscaping works; and

7. Implementation of environmental mitigation measures and environmental monitoring and audit programme for the works.

(b) TCW Project

1. Site formation works at TCW;

2. Construction of proposed open space;

3. Construction of the River Park including a visitor centre at TCW; and

4. Construction of sustainable urban drainage systems at TCW.

The locations of Contracts 1, 2, 3 and 7 are shown in Figure 1.1 to 1.4. The construction and the reclamation related marine works of Contract 1 commenced on 9 and 13 July 2018, respectively. The construction of Contracts 2, 3 and 7 commenced on 4 September 2021, 5 November 2021 and 15 March 2022, respectively.

1.2 Scope of the EM&A Report

This is the Monthly EM&A Report for the TCE Project which summarises the key findings of the EM&A programme during the reporting period from 1 to 31 May 2022 for the construction works.

1.3 Organization Structure

The organization structure of the Project is shown in Annex A. The key personnel contact names and contact details are summarized in Table 1.1 below.

Table 1.1 Contact Information of Key Personnel

Party	Position	Name	Telephone
Environmental Team (ET) (ERM-Hong Kong, Limited)	ET Leader	Kelvin So	3894 9504
Environmental Team (ET) (ERM-Hong Kong, Limited)	Deputy ET Leader Deputy ET Leader	Raymond Chow Candy Wong	3894 9509 3894 9508

Independent Environmental Checker (IEC) (Binnies Hong Kong Limited)	IEC	Manuel Chua	3894 9501
	Deputy IEC	Edward Lau	3894 9502

Contract No. NL/2017/03 - Tung Chung New Town Extension – Reclamation and Advance Works (Contract 1)
Civil Engineering and Development Department	Senior Geotechnical Engineer	C H Yan	3894 9702
Civil Engineering and Development Department	Marine Conservation Officer	Wo King Tai	3894 9707
Engineer’s Representative (ER) (AECOM Asia Company Limited)	Principal Resident Engineer Chief Resident Engineer Senior Resident Engineer Senior Resident Engineer	Frankie Fan Chris Cheung Chris Chow Edwin Fu	3894 9603 3894 9604 3894 9651 3894 9644
	Resident Engineer	Nelson Ling	3894 9647
	Senior Inspector of Works	C K Liu	3894 9733
Contractor (Build King – SCT Joint Venture)	Site Agent	David Wong	9653 8635
	Civil Division Head	Marco Chan	9257 7033
	Environmental Officer	Issac Wong	9873 8968
	24-hour Complaint Hotline	-	9862 2910

Contract No. NL/2020/02 - Tung Chung New Town Extension – Salt Water Supply System (Contract 2)
Civil Engineering and Development Department	Senior Engineer	Patrick C Y Yeung	2231 4435
Civil Engineering and Development Department	Electrical & Mechanical Engineer	Samson K L Yip	2231 4460
Engineer’s Representative (ER) (AECOM Asia Company Limited)	Principal Resident Engineer Senior Resident Engineer	Frankie Fan Sunny Ng	3894 9603 3894 9605
	Senior Resident Engineer	Vincent Leung	3894 9645
	Resident Engineer	Terence Chan	3894 9683
	Senior Inspector of Works	Wong Ting Yu	3894 9706
Contractor (China Geo-Engineering Corporation)	Construction Manager	Ambrose Kwong	6198 7787
	Site Agent	Timothy Lo	9661 2662
	Construction Team Leader	Edward Mok	6498 4306
	Environmental Officer	Dixon Lee	6100 1005
	24-hour Complaint Hotline (a)	-	5484 9233

Contract No. NL/2020/03 - Tung Chung New Town Extension – Major Infrastructure Works in Tung Chung East (Contract 3)
Civil Engineering and Development Department	Senior Engineer	Eddie W C Lam	2231 4445
	Engineer	Timothy H M Chan	2231 4473

	Senior Engineer	Vincent S H Chow	2231 4426
	Engineer	Colin K C Wong	2231 4417
	Engineer	Wing Chen	3894 9704

Engineer’s Representative (ER) (AECOM Asia Company Limited)	Principal Resident Engineer Senior Resident Engineer	Frankie Fan Boris Lo	3894 9603 3894 9650
	Resident Engineer	David Li	3894 9684
	Resident Engineer	Carl Yu	3894 9671
	Senior Inspector of Works	Douglas Ng	3894 9737
Contractor (Build King Civil Engineering Limited)	Construction Manager	Cheung Siu Lun	2272 3680
	Site Agent	Paul Lui	9095 7922
	Deputy Site Agent	Aldous Lo	9225 0368
	Construction Team Leader	Ken Yau	9197 2219
	Environmental Officer	Allen Wong	6012 2643
	24-hour Complaint Hotline (a)	-	9806 0726

Contract No. NL/2020/07 - Tung Chung New Town Extension – Tai Ho Interchange (Contract 7)
Civil Engineering and Development Department	Senior Engineer	Phoebe Tang	2231 4423
	Engineer	Matthew Ng	2231 4449
	Engineer	Candy Lau	2231 4420

Engineer’s Representative (ER) (AECOM Asia Company Limited)	Principal Resident Engineer	Frankie Fan	3894 9603
	Senior Resident Engineer	Kelvin Kwan	3894 9641
	Senior Resident Engineer	Brian Li	3894 9556
	Resident Engineer	Kingsley Ho	3894 9552
	Resident Engineer	Carl Yu	3894 9671
	Senior Inspector of Works	Douglas Ng	3894 9554
Contractor (Build King Civil Engineering Limited)	Site Agent	Hon Yee	9090 3109
	Deputy Site Agent	Vincent Kwan	9833 1313
	Construction Team Leader	Vincent Lo	9883 9229
	Environmental Officer	Nash Wong	9810 1946
	24-hour Complaint Hotline (a)	-	5976 1853

Note: (a) The 24-hour complaint hotline is subjected for approval.

1.4 Summary of Construction Works

As informed by the Contractor, details of the major works carried out in this reporting period are listed below:

Table 1.2 Major Activities in the Reporting Period

Activities	Key Issues	Key Mitigation Measures
Contract No. NL/2017/03 - Tung Chung New Town Extension – Reclamation and Advance Works (Contract 1)
Land-based Works
· Ground investigation works · Land DCM works · Jet grouting works · Placing of sorted public fill · Box culvert construction · Installation of PVD · Chain link fence erection and U-channel construction	· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management
Marine-based Works
· Laying of geotextile for seawall construction · Marine-based instruments monitoring works · Placing of sorted public fill · Seawall construction	· Elevation in impact on Water Quality due to sediment loss from sand blanket laying and marine filling works · Potential surface runoff · Potential filling material drop from barges · Disturbance to Chinese White Dolphin · Noise from marine vessels and plant operation during normal working hours or restricted hours · Dust emission during storage and transfer of sand/ sorted public fill · Emission of dark smoke from marine vessel	· Provision of perimeter silt curtain · Provision of a leading seawall of at least 200m before marine filling works · Regular cleaning of accumulated sand/fill materials at the edge of the barges · Implementation of Dolphin Watching for the marine-based works · Strictly follow requirement under CNP for the use of PMEs and works within restricted period · Use of acoustic mat and other noise mitigation measures when necessary · Regular maintenance of engines and mechanical equipment

Contract No. NL/2020/02 - Tung Chung New Town Extension – Salt Water Supply System (Contract 2)
Land-based Works
· Initial survey (land survey prior to the commencement of construction works) · Excavation and ELS works at Portion 6 · Site formation, retaining wall, road diversion and soil nailing works at Portion 3 · Watermain laying works at Portion 3 along Yu Tung Road · Ground investigation to determine the rockhead for HDD works at Portion 3 · Excavation of trial pit at WSD area near Tung Chung Road at Portion 3 · Sheet piling works and trench excavation and pipe laying for drainage works at Portion 5A · Sheet piling works for ELS at box-culvert at Portion 5B	· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management · Tree protection	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management · Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works
Contract No. NL/2020/03 - Tung Chung New Town Extension – Major Infrastructure Works in Tung Chung East (Contract 3)
Land-based Works
· Installation of sheetpile at Portion 104 · Installation of sheetpile at CUT no.1 & 2 · Erection of PM office at WA9 · Installation of sheetpile at Portion 8 and 8A · Drainage/ sewerage works at Portion 12 · Setting up of TTA for twin rising mains/ watermain laying at Man Tung Road · Setting up of TTA for pipe jacking works for drainage and sewerage works at Ying Tung Road	· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management

Contract No. NL/2020/07 - Tung Chung New Town Extension – Tai Ho Interchange (Contract 7)

Land-based Works

· Chain link fence at WA4

· Trench excavation at Portions 32 (Sham Shui Kok Drive), 36-38

· Tree felling works / site clearance works at Portion 30, 31, 32, 33, 34

· Hoarding installation at Pak Mong Subway

· Ground investigation works for Bridge C and Pak Mong Channel Bridge

· Site clearance and tidiness

· Dust emission

· Handling and storage of C&D materials generated from construction activities

· Noise from plant operation

· Emission of dark smoke from PMEs

· Efficiency of wastewater and drainage management

· Tree protection

· Good site practices

· Regular water spraying on stockpiles, unpaved haul road and land filling area

· Provide tarpaulin sheets coverage on stockpiles

· Sorting and reuse of C&D materials as far as practicable

· Use of QPME and noise barrier/acoustic mat

· Regular maintenance of PMEs

· Implementation of wastewater and drainage management

· Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works

The environmental mitigation implementation schedule is presented in Annex B.

1.5 Summary of EM&A Programme Requirements

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

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

Parameters	Status
Air Quality
Baseline Monitoring	The results of baseline air quality monitoring for TCE were reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4
Impact Monitoring	On-going for TCE, monitoring conducted three times every six days

Noise
Baseline Monitoring	The results of baseline noise monitoring for TCE were reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4
Impact Monitoring	On-going for TCE, monitoring conducted once per week
Impact Monitoring for Road Traffic Noise during Operational Phase	To be conducted during operational phase
Fixed Noise Commissioning Test	To be implemented by the Contractor before operation of TCNTE

Water Quality
Baseline Monitoring	The results of baseline water quality monitoring for TCE were reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4
Impact Monitoring	On-going for TCE, monitoring conducted three times per week

Waste Management
Waste Monitoring	On-going

Land Contamination
Contamination Assessment Plan (CAP), Remediation Action Plan (RAP) and Remediation Report (RR)	To be conducted under TCW. Refer to the EM&A Reports of TCW.

Ecology
Monitoring for Compensation Woodland	To be conducted when compensation woodland are planted
Monitoring for Emergent Plant inside the future River Park	To be conducted under TCW. Refer to the EM&A Reports of TCW.
Monitoring for Translocated Amphibians of Conservation Importance	To be conducted under TCW. Refer to the EM&A Reports of TCW.
Monitoring for Preserved/Transplanted Plant Species of Conservation Importance	On-going, for transplanted plant species, transplantation works was carried out on 21 January 2022 and monitoring conducted once per week until end of July; for preserved plant species, monitoring conducted once per month
Monitoring for Tung Chung Stream EIS and Wong Lung Hang EIS	To be conducted under TCW. Refer to the EM&A Reports of TCW. Monitoring for Wong Lung Hang was not required and the proposal was accepted by EPD on 2 September 2021

Eco-shoreline Monitoring	To be conducted when eco-shoreline at TCE PDA and Road P1 is built
Tung Chung Bay and Tai Ho Wan Baseline Monitoring	The results of baseline soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan were reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4
Tung Chung Bay and Tai Ho Wan Impact Monitoring	On-going for TCE, monitoring conducted quarterly

Landscape and Visual
Baseline Monitoring	The results of baseline landscape and visual monitoring were reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4

Site Environmental Audit
Regular Site Inspection	On-going
Dolphin Watching Plan implementation measures	Under implementation by the Contractor of Contract 1
Works Vessel Travel Route Plan implementation measures	Under implementation by the Contractor of Contract 1
Silt Curtain Deployment Plan implementation measures	Under implementation by the Contractor of Contract 1

Spill Response Plan implementation measures	Under implementation by the Contractor of Contract 1
Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance implementation measures	Under implementation by the Contractor of Contract 2

Waste Management Plan implementation measures	Under implementation by the Contractor of Contract 1

Complaint Hotline and Email Channel	Under implementation by the Contractor of Contract 1. The 24-hour complaint hotline/email channel under Contracts 2, 3, and 7 are subjected for approval

Environmental Log Book	On-going

Taking into account the construction works, impact monitoring of air quality, noise, water quality and waste management were carried out in the reporting period. The monitoring schedule of air quality, noise and water quality monitoring are provided in Annex E2, Annex F2 and Annex G2, respectively.

The EM&A programme also involved environmental site inspections and related auditing conducted by the ET for checking the implementation of the required environmental mitigation measures recommended in the approved EIA Report and relevant EP submissions, including Complaint Management Plan, Dolphin Watching Plan, Works Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response Plan, Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance and Waste Management Plan.

To promote the environmental awareness and enhance the environmental performance of the contractors, environmental trainings and regular environmental management meetings were conducted during the reporting period, which are summarized as below:

Ÿ Four (4) environmental management committee meetings were held with the Contractors of Contract 1 and 7 and ER, ET, IEC and CEDD on 19 and 10 May 2022, respectively, and Contractors of Contract 2 and 3 on 18 May 2022;

Ÿ Environmental toolbox trainings on nuisance to residence (light pollution/sudden noise /dusty work), site hygiene, wastewater handling, discharge, treatment facilities and spill control, dust control, works vessel travel route plan, nuisance to residence at midnight (light pollution/sudden noise/dusty work), transferring of cement, water truck routing and GPD navigation and construction noise permit on 4, 6, 13, 18, 19, 20, 23 and 27 May 2022 were conducted for Contract 1;

Ÿ Environmental toolbox trainings on site clearance on 5 and 12 May 2022 were conducted for Contract 2;

Ÿ Environmental toolbox trainings on construction dust and suppression, wastewater handling, discharge and treatment facilities, waste collection, handling and disposal, handling and storage of chemicals, excavation, protection and preservation of trees on 3, 10, 12, 17, 19 and 31 May 2022 were conducted for Contract 3;

Ÿ Environmental toolbox trainings on emergency preparedness, emergency response on rainstorm, thunderstorm and typhoon, and environmental policy on 4, 11 and 18 May 2022 were conducted for Contract 7.

1.6 Status of Statutory Environmental Compliance with the Environmental Permit

The status of statutory environmental compliance with the EP conditions under the EIAO, submission status under the EP and implementation status of mitigation measures are presented in Annex C.

1.7 Status of Other Statutory Environmental Requirements

The environmental licenses and permits, including environmental permit, waste discharge license, registration as chemical waste producer and construction noise permit, which were valid in the reporting period are presented in Annex D. No non-compliance with environmental statutory requirements was recorded.

2 EM&A Results for Tung Chung East

The EM&A programme for the Project required environmental monitoring for air quality, noise, water quality and marine ecology as well as environmental site inspections for air quality, noise, water quality, waste management, marine ecology and landscape and visual impacts. The EM&A requirements and related findings for each component are summarized in the following sections.

2.1 Air Quality

2.1.1 Monitoring Requirements and Equipment

According to the Updated EM&A Manual of the Project, impact air quality monitoring in terms of 1-hour Total Suspended Particulate (TSP) was conducted three (3) times every six (6) days when the highest dust impact was expected. The Action and Limit Levels of the air quality monitoring is provided in Table 2.1 below.

Table 2.1 Action and Limit Levels for 1-hour TSP

Location	Action Level, µg/m3	Limit Level, µg/m3
Monitoring station for Tung Chung East	279	500

Portable direct reading dust meters were used to measure 1-hour TSP levels in undertaking the air quality monitoring for the Project. The proposed use of portable direct reading dust meters was submitted to IEC and obtained agreement from the IEC as stated in Section 5.5 of the Updated EM&A Manual. With the use of direct reading dust meter, it can allow prompt and direct results for the EM&A reporting and the implementation of the event and action plan. The portable direct reading dust meter would be calibrated every year against High Volume Sampler (HVS) to check the validity and accuracy of the results measured by direct reading method.

The monitoring location and equipment used in the impact air quality monitoring programme are summarized in Table 2.2 and illustrated in Figure 2.1. Copies of the calibration certificates for the equipment are presented in Annex E1, which showed that the portable direct reading dust meter is capable of providing comparable results with that provided by a HVS.

Table 2.2 Air Quality Monitoring Details

Monitoring Station	Location	Parameter	Frequency and Duration	Monitoring Dates	Equipment
DM-1	Tung Chung Area 56 – Ying Tung Estate	1-hour TSP	Three times per six days during the construction period of the Project	6, 12, 18, 24 and 30 May 2022	1-hour TSP Dust Meter SIBATA LD-3B (S/N: 276019)
Remark: It should be noted that impact monitoring at other construction dust monitoring locations at TCE as stated in the Updated EM&A Manual will commence after the flat intake (for Monitoring Stations DM-2, DM-3 and DM-4).

Monitoring Station

Location

Parameter

Frequency and Duration

Monitoring Dates

Equipment

DM-1

Tung Chung Area 56 – Ying Tung Estate

1-hour TSP

Three times per six days during the construction period of the Project

6, 12, 18, 24 and 30 May 2022

1-hour TSP Dust Meter

SIBATA LD-3B (S/N: 276019)

Remark:

It should be noted that impact monitoring at other construction dust monitoring locations at TCE as stated in the Updated EM&A Manual will commence after the flat intake (for Monitoring Stations DM-2, DM-3 and DM-4).

2.1.2 Monitoring Schedule for the Reporting Month

The schedule for air quality monitoring during the reporting period is provided in Annex E2.

2.1.3 Results and Observations

The monitoring results for 1-hour TSP are summarized in Table 2.3. The monitoring data and the graphical presentation are provided in Annex E3.

Table 2.3 Summary of 1-hour TSP Monitoring Results in the Reporting Period

Monitoring Station	Average (µg/m3)	Range (µg/m3)	Action Level (µg/m3)	Limit Level (µg/m3)
DM-1	25	12-48	279	500

Major dust sources in the reporting period included haul road traffic, unloading of sand/fill material and filling works under the Project.

No exceedance of Action and Limit Levels was recorded for construction air quality monitoring in the reporting period. No action was thus required to be undertaken in accordance with the Event and Action Plan presented in Annex E4.

2.2 Noise Monitoring

2.2.1 Monitoring Requirements and Equipment

According to the Updated EM&A Manual of the Project, impact noise monitoring was conducted once per week during the construction phase of the Project. The Action and Limit Level for construction noise of the Project is provided in Table 2.4 below.

Table 2.4 Action and Limit Levels for Construction Noise

Time Period	Action Level	Limit Level
0700 - 1900 hours on normal weekdays	When one documented complaint is received	75 dB(A) *

Notes:

Limit level is exceeded when Leq ≥ 75 dB(A). If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed.

* Reduce to 70 dB (A) for schools and 65 dB (A) during school examination periods.

Noise monitoring was performed using sound level meter at the designated monitoring stations NMS-CA-1A ([3]) ([4]) and NMS-CA-4 (Figure 2.2; Table 2.5) in accordance with the requirements stipulated in the Updated EM&A Manual. Acoustic calibrator was deployed to check the sound level meters at a known sound pressure level. Details of the deployed equipment are provided in Table 2.5. Copies of the calibration certificates for the equipment are presented in Annex F1.

Table 2.5 Noise Monitoring Details

Monitoring Station (a)	Location	Parameter	Frequency and Duration	Monitoring Dates	Equipment
NMS-CA-1A (b)	Residential premise in Tung Chung East – Century Link/Ying Hong Road (c)	30-minute measurement between 0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10 and L90 would be recorded.	Once per week for 30 mins during the construction period of the Project	6, 12, 18, 24 and 30 May 2022	Sound Level Meter: Rion NL-52 (S/N: 00710259) Acoustic Calibrator: LARSON DAVIS CAL200 (S/N: 11333)
NMS-CA-4	Residential premise in the reclamation area next to Tung Chung East – Ying Tung Estate
Remarks: (a) It should be noted that impact monitoring at other construction noise monitoring locations at TCE as stated in the Updated EM&A Manual will commence after the flat intake of residential premise in TCE (for Monitoring Station NMS-CA-1) and operation of schools (for Monitoring Stations NMS-CA-2 and NMS-CA-3). (b) Impact monitoring at monitoring station NMS-CA-1A commenced on 19 September 2018 in view of the close vicinity of the construction works near the residential area at Century Link. (c) Due to land handover issue, NMS-CA-1A was relocated to Ying Hong Road which is located 60m away from the original location. Proposal on the relocation of NMS-CA-1A was approved by IEC on 23 November 2018. Noise monitoring at the relocated location commenced since 24 November 2018.

2.2.2 Monitoring Schedule for the Reporting Month

The schedule for noise monitoring during the reporting period is provided in Annex F2.

2.2.3 Results and Observations

Results for noise monitoring are summarized in Table 2.6. The monitoring data and the graphical presentation are provided in Annex F3.

Table 2.6 Summary of Construction Noise Monitoring Results in the Reporting Period

Monitoring Station	Average , dB(A), Leq (30mins)	Range, dB(A), Leq (30mins)	Limit Level, dB(A), Leq (30mins)
NMS-CA-1A	66.2	64.9-67.6	75
NMS-CA-4	64.2	63.1-66.5	75

Monitoring Station

Average , dB(A),

Leq (30mins)

Range, dB(A),

Leq (30mins)

Limit Level, dB(A),

Leq (30mins)

NMS-CA-1A

66.2

64.9-67.6

NMS-CA-4

64.2

63.1-66.5

Major noise sources during the noise monitoring included noise from plant operation, craning, piling, haul road traffic, nearby traffic and aircraft as well as nearby construction sites.

No Limit Level exceedance was recorded for construction noise monitoring in the reporting period. However, two (2) Action Levels were triggered from two (2) environmental complaints related to noise nuisance in the reporting period.

2.3 Water Quality Monitoring

2.3.1 Monitoring Requirements and Equipment

Impact water quality monitoring was carried out to ensure that any deterioration of water quality was detected, and that timely action was taken to rectify the situation. Impact water quality monitoring was undertaken three days per week since the commencement of marine works during the reporting period in accordance with the Updated EM&A Manual. Each impact water quality monitoring was scheduled such that the interval between two impact water quality monitoring was more than 36 hours to record representative water quality data throughout the week during the marine works.

Two (2) replicate in-situ measurements and samples were collected at each monitored water depth of each designated monitoring stations. Dissolved Oxygen (DO), pH value, salinity, temperature and turbidity were measured in-situ whereas the level of suspended solids (SS) were determined by ALS Technichem (HK) Pty Ltd which is a HOKLAS accredited laboratory.

The Action and Limit Levels of the water quality monitoring are provided in Table 2.7.

Table 2.7 Action and Limit Levels for Water Quality

Parameters	Action Level	Limit Level
DO in mg/L (Surface, Middle & Bottom)	Surface and Middle 5.9 mg/L [1] Bottom 5.6 mg/L	Surface and Middle 4 mg/L [1] Bottom 2 mg/L
SS in mg/L (Depth-averaged)	13.5 mg/L or 120% of upstream control station at the same tide of the same day, whichever is higher. [2]	23.5 mg/L or 130% of upstream control station at the same tide of the same day, whichever is higher. [2]
Turbidity in NTU (Depth-averaged)	17.1 NTU or 120% of upstream control station at the same tide of the same day, whichever is higher. [2]	23.5 NTU or 130% of upstream control station at the same tide of the same day, whichever is higher. [2]

Notes:

(1) For DO, non-compliance occurs when monitoring results is lower than the limits.

(2) For SS and Turbidity, non-compliance occurs when monitoring results is larger than the limits

The locations of the monitoring stations under the Project are shown in Figure 2.3 and Table 2.8.

Table 2.8 Locations of Impact Water Quality Monitoring Stations and the Corresponding Monitoring Requirements

Monitoring Station	Description		Coordinates		Parameters (a)	Frequency	Monitoring Dates	Depth
			Easting	Northing	Parameters (a)
TCE-WQM1	Near Airport Channel		811838	817341	Ÿ Dissolved Oxygen (DO) (mg/L and % saturation) Ÿ Temperature (°C) Ÿ Turbidity (NTU) Ÿ Salinity (ppt) Ÿ pH Ÿ Water depth (m) Ÿ Suspended Solid (SS) (mg/L)	Impact monitoring: 3 days per week, at mid-flood and mid-ebb tides during the construction period of the Project	2, 4, 6, 9, 11, 13, 16, 18, 20, 23, 25, 27 and 30 May 2022	3 water depths: 1m below sea surface, mid-depth and 1m above seabed. If the water depth is less than 3m, mid-depth sampling only. If water depth less than 6m, mid-depth may be omitted
TCE-WQM2a	Marine Park 1		814439	819879
TCE-WQM2b	Marine Park 2		814439	821905
TCE-WQM3A	Outlet of Tai Ho Wan		814705	817859
TCE-WQM4	HKBCF		813344	818849
TCE-C1	Control Station - Outside Airport Channel		804247	815620
TCE-C2	Control Station - Sunny Bay		819460	821473
		Notes:
		(a) In addition to the abovementioned parameters, other relevant data shall also be recorded, including monitoring location / position, time, water depth, tidal stages, weather conditions and any special phenomena or work underway at the construction site.

Table 2.9 summarizes the equipment used in the impact water quality monitoring works. Copies of the calibration certificates are attached in Annex G1.

Table 2.9 Water Quality Monitoring Equipment

Equipment	Model
Water Sampler	Kahlsico Water Samplers
Multi-parameter Water Quality System (measurement of DO, Temperature, Turbidity, Salinity and pH)	YSI ProDSS (S/N: 16H104233, 16H104234, 17E100747, 21G105356)

2.3.2 Monitoring Schedule for the Reporting Month

The schedule for water quality monitoring during the reporting period was provided in Annex G2.

2.3.3 Results and Observations

A total of 13 monitoring events for impact water quality monitoring were conducted at all designated monitoring stations during the reporting period. Impact water quality monitoring results and graphical presentations were provided in Annex G3.

No exceedance of Action and Limit Levels was recorded for water quality impact monitoring in the reporting period. No action was thus required to be undertaken in accordance with the Event and Action Plan presented in Annex E4.

2.4 Preserved/Transplanted Plant Species of Conservation Importance Monitoring

Plant species of conservation importance, including three individuals of Aquilaria sinensis and 33 individuals of Gmelina chinensis, were identified within works areas for Contract 2. All individuals of Aquilaria sinensis and 31 individuals of Gmelina chinensis were recommended being preserved in-situ while two individuals of Gmelina chinensis (RT-07 and RT-08) were recommended being transplanted to the receptor site in accordance with the Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance approved under Condition 2.21 of EP-519/2016. Initial tree survey was conducted in September 2021 under Contract No. NL/2020/02 before the commencement of construction works. According to the initial tree survey conducted, the in-situ preserved plant species of conservation importance of which one individual of Aquilaria sinensis and six individuals of Gmelina chinensis were found missing.

2.4.1 Preserved Plant Species of Conservation Importance

Monthly monitoring of the in-situ preserved plant species of conservation importance by the Qualified Personnel (QP) appointed under Contract 2 was implemented in the reporting period. Health condition was considered fair for the majority of the in-situ preserved plant species of conservation importance, of which two individuals of Gmelina chinensis could not be monitored as a result of unsafe access to the locations, as recorded during the monitoring carried out on 27 May 2022.

Tree protection zones for the in-situ preserved plant species of conservation importance were demarcated. No injuries and/or damages to the individuals of the in-situ preserved plant species of conservation importance were reported by the QP since the previous monitoring events. Photographic record and tree schedule of the preserved plant species of conservation importance monitoring are provided in Annex H1.

2.4.2 Transplanted Plant Species of Conservation Importance

Site visit to the receptor site for the transplanted plant species of conservation importance was carried out on 20 January 2022 prior to the commencement of transplantation works for the transplanted plant species of conservation importance on 21 January 2022.

Four monitoring of the transplanted plant species of conservation importance events were implemented as part of the ET’s regular site inspection on 4, 11, 18 May and 1 June([5]) 2022. Key observations during the monitoring events are summarized in Table 2.11. Photographic record and the suitable receptor site location of the transplanted plant species of conservation importance monitoring are provided in Annex H2.

The transplanted plant species of conservation importance were watered daily to keep the soil moist except in days with heavy rainfall. The ET will continue to monitor the implementation of monitoring of in-situ preserved/ transplanted plant species of conservation importance.

2.5 Soft Shore Ecological Monitoring

No impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan was scheduled during the reporting period. The impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan was scheduled to be conducted in June 2022 in accordance with the Updated EM&A Manual.

2.6 EM&A Site Inspection

Site inspections were carried out on a weekly basis with the Contractor and ER to monitor the implementation of proper environmental pollution control and mitigation measures for air quality, noise, water quality, waste management, marine ecology, landscape and visual impacts and preservation and/or transplantation of plant species of conservation importance under the Project. In the reporting period, four (4) site inspections were carried out on 5, 12, 19 and 26 May 2022 for Contract 1, four (4) site inspections were carried out on 4, 11, 18 and 25 May 2022 for Contract 2, four (4) site inspections were carried out on 6, 13, 18 and 27 May 2022 for Contract 3 and five (5) site inspections were carried out on 3, 10, 17, 24 and 31 May 2022 for Contract 7.

Key observations during the site inspections are summarized in Table 2.11.

Table 2.11 Key Observations Identified during the Site Inspection in this Reporting Month

Contract No.	Inspection Date	Environmental Observations	Recommendations/ Remarks
Contract 1	5 May 2022	Near Pak Mong Ÿ Cement dust leak was observed during cement transfer.	Near Pak Mong Ÿ The Contractor was urged to carry out maintenance and follow the SP license.
12 May 2022	Area E Ÿ No deficiency was observed.	Ÿ Nil.
19 May 2022	Near Interim Open Rectangular Channel (IORC) Ÿ Dark smoke was observed emitting from excavator. Ÿ Accumulated refuse was observed on ground.	Near Interim Open Rectangular Channel (IORC) Ÿ The Contractor was urged to carry out maintenance i.e. filter replacement/cleaning. Ÿ The Contractor was reminded to clear accumulated refuse regularly.
26 May 2022	Near DCM Area Ÿ Chemicals were observed not placing on drip tray. VS2 Ÿ Accumulated general refuse was observed on ground.	Near DCM Area Ÿ The Contractor was reminded to place chemicals on drip tray. VS2 Ÿ The Contractor was reminded to clear accumulated refuse regularly.
Contract 2	4 May 2022	Portion 3 Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT-07 and RT-08). HDD Ÿ Environmental permit was not observed on the gate. Ÿ Muddy runoff was observed.	Portion 3 Ÿ The Contractor was reminded to provide mitigation measures (i.e. daily watering, use of mulch and pruning/weeding) when necessary, keep close monitoring of the plants in terms of their health condition and report to relevant parties in the event of deterioration immediately. HDD Ÿ The Contractor was reminded to affix environmental permit on the gate. Ÿ The Contractor was urged to remove the materials and provide tree protection.
11 May 2022	Portion 3 Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT-07 and RT-08). Ÿ Runoff was observed.	Portion 3 Ÿ The Contractor was reminded to provide mitigation measures (i.e. daily watering, use of mulch and pruning/weeding) when necessary, keep close monitoring of the plants in terms of their health condition and report to relevant parties in the event of deterioration immediately. Ÿ The Contractor was urge to implement mitigation measures to prevent polluted site runoff from discharging into near drainage system / waterbodies, critically review the drainage system immediately.
18 May 2022	Portion 3 Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT07 and RT-08). Ÿ Cement was observed in the tree protection zone. Portion 6 Ÿ Runoff was observed.	Portion 3 Ÿ The Contractor was reminded to provide mitigation measures (i.e. daily watering, use of mulch and pruning/weeding) when necessary, keep close monitoring of the plants in terms of their health condition and report to relevant parties in the event of deterioration immediately. Ÿ The Contractor was urge to remove the cement and keep the tree protection zone clean. Portion 6 Ÿ The Contractor was urge to implement mitigation measures to prevent polluted site runoff from discharging into near waterbodies, critically review the drainage system immediately.
25 May 2022	Portion 6 Ÿ Accumulated general refuse and construction waste was observed. Ÿ Runoff was observed.	Portion 6 Ÿ The Contractor was reminded to carry out material sorting for general refuse and construction waste and clear accumulated refuse regularly. Ÿ The Contractor was urge to implement mitigation measures to prevent polluted site runoff from discharging into near waterbodies, critically review the drainage system immediately.
1 June 2022([6])	Portion 3 Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT-07 and RT-08).	Portion 3 Ÿ The Contractor was reminded to provide mitigation measures (i.e. daily watering, use of mulch and pruning/weeding) when necessary, keep close monitoring of the plants in terms of their health condition and report to relevant parties in the event of deterioration immediately.
Contract 3	6 May 2022	Portion 8 Ÿ Construction waste was observed in drip tray. Portion 16B-1 Ÿ Accumulated general refuse was observed on the ground.	Portion 8 Ÿ The Contractor was reminded to keep drip trays clean. Portion 16B-1 Ÿ The Contractor was reminded to remove the refuse and provide rubbish bins for workers.
13 May 2022	CUT1 and WA6/WA9 Ÿ Appropriate Non-road Mobile Machinery (NRMM) labels were not observed.	CUT1 and WA6/WA9 Ÿ The Contractor was reminded to affix appropriate NRMM labels in accordance with the Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation.
18 May 2022	CUT1 Ÿ Accumulated general refuse and construction waste was observed. Portion 16B-1 Ÿ Chemical waste was observed placing outside the chemical waste storage cabinet.	CUT1 Ÿ The Contractor was reminded to carry out material sorting for general refuse and construction waste and clear accumulated refuse regularly. Portion 16B-1 Ÿ The Contractor was reminded to put chemical waste in proper storage area.
27 May 2022	CUT1, WA6, WA9 Ÿ No deficiency was observed.	Ÿ Nil.
Contract 7	3 May 2022	Portion 37, Area E, Pak Mong Subway Ÿ No deficiency was observed.	Ÿ Nil.
10 May 2022	Portion 32 Ÿ Damage on retained tree was observed.	Portion 32 Ÿ The Contractor was reminded to provide proper measures to retained trees.
17 May 2022	Near Pak Mong Subway Ÿ Non-road Mobile Machinery (NRMM) label was not observed on generator.	Near Pak Mong Subway Ÿ The Contractor was reminded to affix appropriate NRMM labels in accordance with the Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation.
24 May 2022	Portion 32, 37 Ÿ No deficiency was observed.	Ÿ Nil.
31 May 2022	Portion 32 Ÿ No tree protection for retained tree was observed.	Portion 32 Ÿ The Contractor was urged to provide tree protection for retained tree.

Contract No.

Inspection Date

Environmental Observations

Recommendations/ Remarks

Contract 1

5 May 2022

Near Pak Mong

Ÿ Cement dust leak was observed during cement transfer.

Near Pak Mong

Ÿ The Contractor was urged to carry out maintenance and follow the SP license.

12 May 2022

Area E

Ÿ No deficiency was observed.

Ÿ Nil.

19 May 2022

Near Interim Open Rectangular Channel (IORC)

Ÿ Dark smoke was observed emitting from excavator.

Ÿ Accumulated refuse was observed on ground.

Near Interim Open Rectangular Channel (IORC)

Ÿ The Contractor was urged to carry out maintenance i.e. filter replacement/cleaning.

Ÿ The Contractor was reminded to clear accumulated refuse regularly.

26 May 2022

Near DCM Area

Ÿ Chemicals were observed not placing on drip tray.

VS2

Ÿ Accumulated general refuse was observed on ground.

Near DCM Area

Ÿ The Contractor was reminded to place chemicals on drip tray.

VS2

Ÿ The Contractor was reminded to clear accumulated refuse regularly.

Contract 2

4 May 2022

Portion 3

Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT-07 and RT-08).

HDD

Ÿ Environmental permit was not observed on the gate.

Ÿ Muddy runoff was observed.

Portion 3

Ÿ The Contractor was reminded to provide mitigation measures (i.e. daily watering, use of mulch and pruning/weeding) when necessary, keep close monitoring of the plants in terms of their health condition and report to relevant parties in the event of deterioration immediately.

HDD

Ÿ The Contractor was reminded to affix environmental permit on the gate.

Ÿ The Contractor was urged to remove the materials and provide tree protection.

11 May 2022

Portion 3

Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT-07 and RT-08).

Ÿ Runoff was observed.

Portion 3

Ÿ The Contractor was urge to implement mitigation measures to prevent polluted site runoff from discharging into near drainage system / waterbodies, critically review the drainage system immediately.

18 May 2022

Portion 3

Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT07 and RT-08).

Ÿ Cement was observed in the tree protection zone.

Portion 6

Ÿ Runoff was observed.

Portion 3

Ÿ The Contractor was urge to remove the cement and keep the tree protection zone clean.

Portion 6

Ÿ The Contractor was urge to implement mitigation measures to prevent polluted site runoff from discharging into near waterbodies, critically review the drainage system immediately.

25 May 2022

Portion 6

Ÿ Accumulated general refuse and construction waste was observed.

Ÿ Runoff was observed.

Portion 6

Ÿ The Contractor was reminded to carry out material sorting for general refuse and construction waste and clear accumulated refuse regularly.

Ÿ The Contractor was urge to implement mitigation measures to prevent polluted site runoff from discharging into near waterbodies, critically review the drainage system immediately.

1 June 2022([6])

Portion 3

Ÿ The health condition of the transplanted plant species of conservation importance was poor (RT-07 and RT-08).

Portion 3

Contract 3

6 May 2022

Portion 8

Ÿ Construction waste was observed in drip tray.

Portion 16B-1

Ÿ Accumulated general refuse was observed on the ground.

Portion 8

Ÿ The Contractor was reminded to keep drip trays clean.

Portion 16B-1

Ÿ The Contractor was reminded to remove the refuse and provide rubbish bins for workers.

13 May 2022

CUT1 and WA6/WA9

Ÿ Appropriate Non-road Mobile Machinery (NRMM) labels were not observed.

CUT1 and WA6/WA9

Ÿ The Contractor was reminded to affix appropriate NRMM labels in accordance with the Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation.

18 May 2022

CUT1

Ÿ Accumulated general refuse and construction waste was observed.

Portion 16B-1

Ÿ Chemical waste was observed placing outside the chemical waste storage cabinet.

CUT1

Ÿ The Contractor was reminded to carry out material sorting for general refuse and construction waste and clear accumulated refuse regularly.

Portion 16B-1

Ÿ The Contractor was reminded to put chemical waste in proper storage area.

27 May 2022

CUT1, WA6, WA9

Ÿ No deficiency was observed.

Ÿ Nil.

Contract 7

3 May 2022

Portion 37, Area E, Pak Mong Subway

Ÿ No deficiency was observed.

Ÿ Nil.

10 May 2022

Portion 32

Ÿ Damage on retained tree was observed.

Portion 32

Ÿ The Contractor was reminded to provide proper measures to retained trees.

17 May 2022

Near Pak Mong Subway

Ÿ Non-road Mobile Machinery (NRMM) label was not observed on generator.

Near Pak Mong Subway

Ÿ The Contractor was reminded to affix appropriate NRMM labels in accordance with the Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation.

24 May 2022

Portion 32, 37

Ÿ No deficiency was observed.

Ÿ Nil.

31 May 2022

Portion 32

Ÿ No tree protection for retained tree was observed.

Portion 32

Ÿ The Contractor was urged to provide tree protection for retained tree.

The Contractors have rectified all of the observations identified during environmental site inspections in the reporting period([7]). The Contractors were reminded to implement all relevant mitigation measures related to construction dust, construction noise, water quality and waste management outlined in the EIA Report and Updated EM&A Manual.

2.7 Waste Management Status

The Contractors of Contract 1, 2, 3 and 7 have registered as chemical waste producer. Sufficient numbers of receptacles were available for general refuse collection and sorting.

All dump trucks engaged on site was equipped with RTTM system during the reporting period. The Surveillance Team of the ET conducted regular site inspection on the dump trucks and their track records. No illegal dumping and landfilling of C&D materials was found during the reporting period.

Wastes generated during this reporting period include mainly non-inert construction wastes. Reference has been made to the waste flow tables prepared by the Contractors. The quantities of different types of wastes and imported fill materials are summarised in Table 2.12.

Table 2.12 Quantities of Different Waste Generated and Imported Fill Materials

Contract No.	Month/ Year	Inert C&D Materials (a) (m3)	Imported Fill (b) (sand) (m3)	Imported Fill (c) (public fill) (m3)	Inert Construction Waste Re-used (d) (m3)	Non-inert Construction Waste (e) (m3)	Recyclable Materials (f) (kg)	Chemical Wastes (kg)

TCNTE (East)	1 to 31 Mar 22	0.0	19,815.0	152,054.0	7,418.0	201.4	3,550,479.0 (g)		90.0
	1 to 30 Apr 22	0.0	0.0	198,976.0	14,144.0	100.0	1,424,989.0 (h)		0.0
	1 to 31 May 22	85.1	0.0	54,452.3	30,509.3	92.6	361.0		0.0
Notes:
(a) Inert construction wastes include hard rock and large broken concrete, and materials disposed as public fill.
(b) Imported materials include of sand fill from any source outside of TCNTE.
(c) Imported sorted public fill include all G200, G400 and glass gullet (local recycling materials) from any source outside of TCNTE.
(d) Reuse of inert construction waste generated under the TCNTE contracts. (e) Non-inert construction wastes include general refuse disposed at landfill.
(f) Recyclable materials include metals, paper, cardboard, plastics and others.
(g) 3,550,090kg of steel was recycled from dismantlement of berth. (h) 1,424,989kg of steel was recycled from dismantlement of berth.

2.8 Implementation Status of Environmental Mitigation Measures

A summary of the Environmental Mitigation Implementation Schedule is presented in Annex B. The necessary mitigation measures were implemented properly for the Project.

2.9 Summary of Exceedances of the Environmental Quality Performance Limit

The monitoring results for air quality monitoring (1-hour TSP) complied with the Action/ Limit levels in the reporting period. No Limit Level exceedance was recorded for construction noise monitoring in the reporting period. However, two (2) Action Level were triggered from two (2) environmental complaints related to noise nuisance received in the reporting period.

Action level exceedances were recorded for water quality impact monitoring in the reporting period. The investigations on the action level exceedances were conducted and the results were summarized in Section 2.3.3. Cumulative statistics on exceedances is provided in Annex I.

2.10 Summary of Complaints, Notification of Summons and Successful Prosecutions

There was no notification of summons or prosecution recorded in the reporting period.

	Complaint(s)	Investigation/Follow up action(s)
1	Environmental complaint related to Contract 3 regarding dust/mud and debris was referred by EPD on 11 May 2022.	Based on ET’s inspection, wheel washing facilities were provided before vehicles exit from the entrance/exit located near Ying Hei Road. In order to prevent mud/debris from falling onto the public roads, Contractor have provided additional workers at wheel washing facilities, patrol team for inspecting the road condition, mechanical covers of all dump trucks with loading and installed CCTV at site exit.
2	Environmental complaint related to Contract 3 regarding percussive piling noise in the morning was referred by EPD on 27 May 2022.	Based on ET’s inspection and information provided by Contractor and RSS, percussive piling was conducted with compliance to the environmental regulations/conditions stated in the granted CNP PP-RS0002-22. Contractor have implemented the “Permit to work system for Percussive Piling” to ensure the percussive piling would only be conducted within the allowed time period and provided briefing on noise control to foreman and workers.
3	Environmental complaint related to Contract 3 regarding noise nuisance on Saturday was referred by EPD on 27 May 2022.	Based on ET’s weekly noise monitoring, no project related exceedance was recorded and no significant difference between weekdays and Saturday was found. In order to further reduce noise impact, Contractor have also implemented mitigation measures including use of noise barriers, tuned mass dampers and acoustics mats.

Statistics on complaints, notifications of summons, successful prosecutions are summarised in Annex I.

3 Future Key Issues

3.1 Construction Programme for the Coming Month

Works to be undertaken in the next monitoring period of June 2022 are summarized in Table 3.1 below, together with the key issues and the key mitigation measures:

Table 3.1 Major Activities for the Next Reporting Period

Activities	Key Issues	Key Mitigation Measures
Contract No. NL/2017/03 - Tung Chung New Town Extension – Reclamation and Advance Works (Contract 1)
Land-based Works
· Ground investigation works · Land DCM works · Jet grouting works · Placing of sorted public fill · Box culvert construction · Installation of PVD	· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management
Marine-based Works
· Laying of geotextile for seawall construction · Marine-based instruments monitoring works · Placing of sorted public fill · Seawall construction	· Elevation in impact on Water Quality due to marine filling works · Potential surface runoff · Potential filling material drop from barges · Disturbance to Chinese White Dolphin · Noise from marine vessels and plant operation during normal working hours or restricted hours · Dust emission during storage and transfer of sand/ sorted public fill · Emission of dark smoke from marine vessel	· Provision of perimeter silt curtain · Provision of a leading seawall of at least 200m before marine filling works · Regular cleaning of accumulated sand/fill materials at the edge of the barges · Implementation of Dolphin Watching for the marine-based works · Strictly follow requirement under CNP for the use of PMEs and works within restricted period · Use of acoustic mat and other noise mitigation measures when necessary · Regular maintenance of engines and mechanical equipment

Contract No. NL/2020/02 - Tung Chung New Town Extension – Salt Water Supply System (Contract 2)

Land-based Works

· Initial survey (land survey prior to the commencement of construction works)

· Excavation and ELS works at Portion 6

· Site formation, retaining wall, road diversion and soil nailing works at Portion 3

· Watermain laying works at Portion 3 along Yu Tung Road

· Sheet piling works and trench excavation, manhole construction and pipe laying for drainage works at Portion 5A

· Construction works for mud pit for HDD works at Portion 3

· Compensatory woodland planting at Portion 1 and 2

· Excavation works for box culvert at Portion 5B

· Dust emission

· Handling and storage of C&D materials generated from construction activities

· Noise from plant operation

· Emission of dark smoke from PMEs

· Efficiency of wastewater and drainage management

· Tree protection

· Good site practices

· Regular water spraying on stockpiles, unpaved haul road and land filling area

· Provide tarpaulin sheets coverage on stockpiles

· Sorting and reuse of C&D materials as far as practicable

· Use of QPME and noise barrier/acoustic mat

· Regular maintenance of PMEs

· Implementation of wastewater and drainage management

· Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works


Contract No. NL/2020/03 - Tung Chung New Town Extension – Major Infrastructure Works in Tung Chung East (Contract 3)
Land-based Works
· Complete installation of sheetpile and commence excavation at Portion 104 · Complete installation of sheetpile and commence excavation at CUT no.1 & 2 · Erection of PM office at WA9 · Installation of sheetpile at Portion 8 and 8A · Drainage/ sewerage works at Portion 12 · ELS for pipe laying for twin rising mains/ watermain laying at Man Tung Road · Setting up of TTA for trial pits for pipe jacking works at Ying Tung Road · CCTV inspection and drainage connection works at Yi Tung Road · Construction of Pak Mong walkway diversion at Portion 13-7	· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management · Tree protection	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management · Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works

Contract No. NL/2020/07 - Tung Chung New Town Extension – Tai Ho Interchange (Contract 7)

Land-based Works

· Construction of temporary haul road at 146-4 and 146-7

· Inspection pit excavation at Portion 34

· Trench excavation and pipe laying works at Portions 32 (Sham Shui Kok Drive), and Portions 36-38

· Tree felling works / site clearance works at Portion 30,31, 32, 33

· Set up of temporary haul road at Portion 31 (Slip Road A3 & A4)

· Excavation works for Pak Mong Subway Extension Phase 1

· Trial installation of pipe pile at Portion 32 (Access Road adjacent to MTRC Siu Ho Wan Depot)

· Ground investigation works for Bridge C

· Site clearance and tidiness

· Dust emission

· Handling and storage of C&D materials generated from construction activities

· Noise from plant operation

· Emission of dark smoke from PMEs

· Efficiency of wastewater and drainage management

· Tree protection

· Good site practices

· Regular water spraying on stockpiles, unpaved haul road and land filling area

· Provide tarpaulin sheets coverage on stockpiles

· Sorting and reuse of C&D materials as far as practicable

· Use of QPME and noise barrier/acoustic mat

· Regular maintenance of PMEs

· Implementation of wastewater and drainage management

· Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works

The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures. The ET will also recommend to the Contractors about the environmental toolbox topics on the abovementioned key issues for the next reporting period.

3.2 Monitoring Schedule for the Coming Month

The tentative schedules for environmental monitoring in June 2022 are provided in Annex J.

4 Conclusion and Recommendation

This EM&A Report presents the findings of the EM&A activities undertaken for the TCE Project during the period from 1 to 31 May 2022 in accordance with the Updated EM&A Manual and the requirements of the Environmental Permit (EP-519/2016).

Air quality (1-hour TSP), noise, water quality (DO, turbidity and SS), monitoring of the in-situ preserved plant species of conservation importance and monitoring of the transplanted plant species of conservation importance were carried out in the reporting period.

The monitoring results for air quality monitoring (1-hour TSP) and water quality impact monitoring complied with the Action/ Limit levels in the reporting period.

No exceedance of Limit Levels was recorded for construction noise monitoring in the reporting period. However, two (2) Action Levels were triggered from two (2) environmental complaints related to noise nuisance in the reporting period.

No impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan was scheduled during the reporting period.

Monitoring of the in-situ preserved plant species of conservation importance and monitoring of the transplanted plant species of conservation importance were carried out in the reporting period. Recommendations were given to the Contractors for the deficiencies identified during the inspections.

Environmental site inspections were carried out during the reporting period. Recommendations on remedial actions were given to the Contractors for the deficiencies identified during the site inspections.

There were no notification of summons or prosecution recorded in the reporting period. Three (3) environmental complaints related to Contract 3 were received in the reporting period. Investigations were conducted for the environmental complaints in accordance with the complaint handling process as stated in the Complaint Management Plan.

The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

([1]) ERM (2018a). Updated Environmental Monitoring and Audit Manual for Tung Chung New Town Extension. Deposited to EPD under EP-519/2016

([2]) Arup (2015). Environmental Impact Assessment Report for Tung Chung New Town Extension. Deposited to EPD under Register No. AEIAR-196/2016

([3]) Impact monitoring at monitoring station NMS-CA-1A commenced on 19 September 2018 in view of the close vicinity of the construction works near the residential area at Century Link.

([4]) Due to land handover issue, NMS-CA-1A was relocated to Ying Hong Road which is located 60m away from the original location. Proposal on the relocation of NMS-CA-1A was approved by IEC on 23 November 2018. Noise monitoring at the relocated location commenced since 24 November 2018.

([5]) Monitoring of in-situ preserved plant species of conservation importance for the week ending 28 May 2022 was carried out on 1 June 2022 due to sick leave of QP.

([6]) Monitoring of in-situ preserved plant species of conservation importance for the week ending 28 May 2022 was carried out on 1 June 2022 due to sick leave of QP.

([7]) Rectification for runoff observed in Contract 2 was provided but effectiveness of the mitigation should be reviewed and enhanced according to ET regular inspection.