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
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
QPME	Quality Powered Mechanical Equipment
PME	Powered Mechanical Equipment
RAP	Remediation Action Plan
RR	Remediation Report
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 Project commenced on 9 July 2018.

This is the Monthly EM&A report presenting the EM&A works carried out during the period from 1 to 31 March 2019 for the Project in accordance with the Updated EM&A Manual. As informed by the Contractor, major activities in the reporting period are summarised in Table 1 below, together with the key issues and the key mitigation measures:

Table 1 Major Activities in the Reporting Period

Activities	Key Issues	Key Mitigation Measures
Land-based Works
· Roads, drainage, sewerage works and backfilling work at Area 58 (near Man Tung Road) · Preparation works for diversion of existing box culvert · Land-based ground investigation works · Installation of prefabricated vertical drain · Land DCM works · Demolition of existing Pak Mong Pier	· Dust emission · Waste management for C&D Materials · Noise from plant operation · Emission of dark smoke from PMEs · Wastewater and drainage management	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · 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
· Installation of sheet piles and pipe piles · Laying of geotextile and sand blanket for reclamation works and DCM works · Placing of sorted public fill · DCM works · Marine ground investigation works · Installation of prefabricated vertical drain	· Elevation in impact on Water Quality due to sediment loss from sand blanket laying and marine filling works · 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 · Wastewater and drainage management	· Provision of perimeter silt curtain · Implementation of Dolphin Watching for the marine-based works · Provision of a leading seawall of at least 200m before marine filling works · Strictly follow requirement under CNP for the use of PMEs and works within restricted period · Regular water spraying and provide tarpaulin sheets coverage on stockpiles · Regular maintenance of engines and mechanical equipment · Use of acoustic mat and other noise mitigation measures when necessary · Implementation of wastewater and drainage management

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

Soft Shore Ecological Monitoring 1 session

Environmental Site Inspection 4 sessions

Environmental Management Meeting 1 session

Environmental auditing works, including weekly site inspections of construction works conducted by the ET, audit of works vessels, audit of implementation of Dolphin Watching Plan, Works Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response Plan and Waste Management Plan 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

Action Level was triggered from one (1) environmental complaint related to noise nuisance in the reporting period. Investigation was conducted for the exceedance in accordance with the Event and Action Plan.

No exceedance of Limit Levels was recorded for construction noise monitoring in the reporting period.

Breaches of Action and Limit Levels for Water Quality

The water quality monitoring results obtained during the reporting period generally complied with the corresponding Action and Limit Levels stipulated in the Baseline Monitoring Report. Relevant investigation and follow-up actions were conducted according to the EM&A programme when the water quality in terms of Dissolved Oxygen (DO), Turbidity and Suspended Solids (SS) exceeded the corresponding Action/Limit Levels. Investigation findings was conducted for the exceedance during reporting period in accordance with the Event and Action Plan. Investigation findings are summarized in Table 2.10.

Soft Shore Ecological Monitoring

The impact monitoring conducted during the reporting period showed that there was no significant change in intertidal communities when compared against the data obtained during baseline monitoring. The ET will continue to observe the change in density and the distribution pattern of horseshoe crab, seagrass and intertidal soft shore communities taking into account natural fluctuation in the occurrence and distribution pattern such as due to seasonal change.

Environmental Complaints, Non-compliance & Summons

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

Environmental complaints were received in the reporting period. Investigations were conducted for each of the environmental complaints in accordance with the complaint handling process as stated in the Complaint Management Plan. Environmental complaints in the reporting period are summarized in Table 2.

Table 2 Summary of Environmental Complaints

	Complaint(s)	Investigation/Follow up action(s)

1	Environmental complaint related to suspected reddish pollutants in waterbody along the shore of Tung Chung New Town was received on 11 March 2019.	Based on the information provided by the ER and the Contractor, supplemented results of water quality monitoring and ad-hoc site inspections, there was no non-compliance observed. Nevertheless, the Contractor was reminded to implement proper discharge management of wastewater and provide sufficient site drainage mitigation.
2	Environmental complaint related to pink fluid spread off in the Tung Chung Reclamation Area and strong fuel smell was received on 11 March 2019.

3	Environmental complaint related to suspected reddish pollutants in waterbody near Tung Chung Reclamation Area was received on 11 March 2019.

4	Environmental complaint related noise nuisance from construction vessels in the morning was received on 15 March 2019.	Based on the information provided by the ER and the Contractor, supplemented results of noise monitoring and ad-hoc site inspections, there was no non-compliance observed. Nevertheless, the Contractor was reminded to further enhance the work sequence during the morning period to avoid starting up of multiple work vessels at the same time that located near resident and implement noise mitigation measures.

Reporting Change

There was no reporting change in the reporting period.

Key Issues For The Coming Month

Potential environmental impacts arising from the above upcoming construction activities in the next reporting period of April 2019 are mainly associated with noise from barge and plant operation during normal working hours and restricted hours, elevation in SS due to sediment loss from sand blanket laying and marine filling works, disturbance to Chinese White Dolphin (CWD) during marine works, waste management for C&D materials, wastewater and drainage management and dust emission. 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 TCE Project (“the Project”) comprises the following elements:

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 kilometres of seawalls, with an eco-shoreline, three drainage box culvert outfalls, three circulation drains and a seawater intake at TCE;

3. Construction of a 470-metre (m) long multi-cell drainage box culvert at TCE;

4. Provision of infrastructure for Tung Chung Area 58, including construction of a single two-lane road with a footpath of about 270 m in length and the associated utility works;

5. Construction of roads, footbridges, drainage, sewerage, waterworks, sewage and salt water pumping stations, fresh water and salt water service reservoirs, and flood protection measures;

6. Provision of new cycle tracks connecting to the existing cycle track network;

7. Landscaping, reprovisioning and ancillary works; and

8. Implementation of environmental mitigation measures and environmental monitoring and audit works.

The location of the Project, including the associated infrastructure works, is shown in Figure 1.1. The construction and the reclamation related marine works of the Project commenced on 9 and 13 July 2018, respectively.

1.2 Scope of the EM&A Report

This is the Monthly EM&A Report for the Project which summarises the key findings of the EM&A programme during the reporting period from 1 to 31 March 2019 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
Civil Engineering and Development Department	Senior Engineer	Lo Siu Keung	2231 4530
Civil Engineering and Development Department	Marine Conservation Officer	Wo King Tai	3894 9707
Engineer’s Representative (ER) (AECOM Asia Company Limited)	Principal Resident Engineer	Frankie Fan	3894 9403
	Senior Resident Engineer	Chris Cheung	3894 9605
	Resident Engineer	Vincent Leung	3894 9645
	Senior Inspector of Works	C K Liu	3894 9733
Environmental Team (ET) (ERM-Hong Kong, Limited)	ET Leader	Jovy Tam	3894 9507
Environmental Team (ET) (ERM-Hong Kong, Limited)	Deputy ET Leader	Raymond Chow	3894 9504
Independent Environmental Checker (IEC) (Black & Veatch Hong Kong Limited)	IEC	Manuel Chua	3894 9501
	Deputy IEC	Ivan Ting	3894 9502
Contractor (Contract No. NL/2017/03 TCNTE – Reclamation and Advance Works) (Build King – SCT Joint Venture)	Site Agent	Keith Tse	9383 6173
	Construction Team Leader	Lee Wai Man	9481 6024
	Environmental Officer	Calvin Sze	9205 9277
	24-hour Complaint Hotline	-	9862 2910

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
Land-based Works
· Roads, drainage, sewerage works and backfilling work at Area 58 (near Man Tung Road) · Preparation works for diversion of existing box culvert · Land-based ground investigation works · Installation of prefabricated vertical drain · Land DCM works · Demolition of existing Pak Mong Pier	· Dust emission · Waste management for C&D Materials · Noise from plant operation · Emission of dark smoke from PMEs · Wastewater and drainage management	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · 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
· Installation of sheet piles and pipe piles · Laying of geotextile and sand blanket for reclamation works and DCM works · Placing of sorted public fill · DCM works · Marine ground investigation works · Installation of prefabricated vertical drain	· Elevation in impact on Water Quality due to sediment loss from sand blanket laying and marine filling works · 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 Wastewater and drainage management	· Provision of perimeter silt curtain · Implementation of Dolphin Watching for the marine-based works · Provision of a leading seawall of at least 200m before marine filling works · Strictly follow requirement under CNP for the use of PMEs and works within restricted period · Regular water spraying and provide tarpaulin sheets coverage on stockpiles · Regular maintenance of engines and mechanical equipment · Use of acoustic mat and other noise mitigation measures when necessary Implementation of wastewater and drainage management

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 1.2. 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)	Pending environmental site investigation and lab testing works for 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 in the future River Park
Monitoring for Translocated Amphibians of Conservation Importance	To be conducted after translocation
Monitoring for Preserved/Transplanted Plant Species of Conservation Importance	To be conducted after preservation/ transplantation
Monitoring for Tung Chung Stream EIS and Wong Lung Hang EIS	To be conducted under TCW
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
Works Vessel Travel Route Plan implementation measures	Under implementation by the Contractor
Silt Curtain Deployment Plan implementation measures	Under implementation by the Contractor

Spill Response Plan implementation measures	Under implementation by the Contractor

Waste Management Plan implementation measures	Under implementation by the Contractor

Complaint Hotline and Email Channel	Under implementation by the Contractor
Environmental Log Book	On-going

Taking into account the construction works, impact monitoring of air quality, noise, water quality, soft shore ecological monitoring and waste management were carried out in the reporting period. The monitoring schedule of air quality, noise, water quality monitoring and soft shore ecological monitoring are provided in Annex E2, Annex F2, Annex G2 and Annex H1, 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 Dolphin Watching Plan, Works Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response Plan and Waste Management Plan.

Snapshots of EM&A Activities in the Reporting Period


Noise Monitoring conducted by ET (Photo taken on 27 March 2019)	Drill on dolphin sighting conducted by the Contractor (Photo taken on 22 March 2019)

Soft Shore Ecological Monitoring conducted by ET (Photo taken on 7 March 2019)	Water Quality Monitoring conducted by ET (Photo taken on 22 March 2019)

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 One (1) environmental management committee meeting was held with the Contractor, ER, ET, IEC and CEDD on 21 March 2019; and

Ÿ Environmental toolbox trainings on water pollution prevention and water discharge, response on dolphin observation, chemical waste storage, waste management, dust management and work vessel travel route plan on 1, 8, 13, 15, 20 and 22 March 2019.

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 are 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 ([3]) 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	5, 11, 16, 21 and 27 Mar 2019	1-hour TSP Dust Meter SIBATA LD-3B (S/N: 235780
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

5, 11, 16, 21 and 27 Mar 2019

1-hour TSP Dust Meter

SIBATA LD-3B (S/N: 235780

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	47	22-112	279	500

The major dust sources in the reporting period included haul road traffic, transfer of sand/fill material, filling works and operation of marine vessels under the Project as well as nearby traffic emissions.

No exceedance of Action and Limit Levels was recorded for construction air quality monitoring in the reporting period. No action is 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 ([4]) 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 ([5]) ([6]) 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 (1)	Location	Parameter	Frequency and Duration	Monitoring Dates	Equipment
NMS-CA-1A (2)	Residential premise in Tung Chung East – Century Link/Ying Hong Road (3)	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	5, 11, 16, 21 and 27 Mar 2019	Sound Level Meter: Rion NL-52 (S/N: 00331805) 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: (1) 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). (2) 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. (3) 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	66.6	63.7-68.4	75
NMS-CA-4	68.4	64.3-71.7	75

Monitoring Station

Average , dB(A),

Leq (30mins)

Range, dB(A),

Leq (30mins)

Limit Level, dB(A),

Leq (30mins)

NMS-CA-1A

66.6

63.7-68.4

NMS-CA-4

68.4

64.3-71.7

Major noise sources during the noise monitoring included noise from barge and plant operation, DCM works, craning, haul road traffic and nearby traffic noise and aircraft noise.

One (1) Action Level was triggered from one (1) environmental complaint related to noise nuisance received in the reporting period. Investigation was conducted for the complaint in accordance with the Event and Action Plan (Annex F4) and the details are provided in Section 2.9.

No Limit Level exceedance was recorded for construction noise monitoring 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 (1)	Frequency	Monitoring Dates	Depth
			Easting	Northing	Parameters (1)
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	1, 4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27 and 29 Mar 2019	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: (1) 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) (Note 1)	YSI ProDSS (S/N: 16H104233; S/N: 16H104234; S/N: 17E100747; S/N: 17H105557)
Note 1: One multi-parameter water quality system was used at each monitoring station during each survey day.

2.3.2 Monitoring Schedule for the Reporting Month

The schedule for water quality monitoring during the reporting period is 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 are provided in Annex G3.

Limit level exceedance was recorded for water quality impact monitoring in the reporting period and the event and action plan (Annex G4) was undertaken. Investigations on the limit level exceedance was conducted and summarized in Table 2.10 below.

Table 2.10 Details of Exceedances Recorded for Water Quality Monitoring

Group	Date	Tide	Parameter	Station	Type	Remarks
1	22 Mar 2019	ME	SS	TCE-WQM2b	Limit	The exceedance was not considered as caused by the construction of the Project due to the following reasons: Ÿ Areas of reclamation related marine works undertaken under the Project were surrounded by silt curtain, which was inspected daily by the Contractor and inspected periodically by ER and observed overall to be in good condition and functioning well. Ÿ The monitoring station is located further away from the works area when compared with monitoring stations TCE-WQM1, TCE-WQM3A and TCE-WQM4 where exceedance was not recorded.

Group

Date

Tide

Parameter

Station

Type

Remarks

22 Mar 2019

TCE-WQM2b

Limit

The exceedance was not considered as caused by the construction of the Project due to the following reasons:

Ÿ Areas of reclamation related marine works undertaken under the Project were surrounded by silt curtain, which was inspected daily by the Contractor and inspected periodically by ER and observed overall to be in good condition and functioning well.

Ÿ The monitoring station is located further away from the works area when compared with monitoring stations TCE-WQM1, TCE-WQM3A and TCE-WQM4 where exceedance was not recorded.

Based on the preliminary investigation conducted for each of the monitoring day with potential limit level exceedance with the Contractor, the ER and the IEC, there is no evidence showing the exceedance was related to the Project. Nevertheless, the Contractor was reminded to implement all relevant mitigation measures for the marine works, including regular checking of silt curtain integrity and maintain good site practice. The ET will keep on checking monitoring data, plant, equipment and Contractor’s working methods. The ET will also conduct further investigation, including the review of water quality monitoring data from adjacent projects, to substantiate the exceedance was not considered as caused by the construction of the Project.

2.4 Soft Shore Ecological Monitoring

2.4.1 Monitoring Requirements

According to the Updated EM&A Manual ([7]) of the Project, impact soft shore ecological monitoring has to be conducted quarterly at each survey location at Tung Chung Bay (TCB) and Tai Ho Wan (THW) covering wet and dry seasons during the marine construction of the Project. The soft shore ecological monitoring consisted of qualitative walk-through surveys, quantitative transect surveys and sedimentation rate monitoring at the accessible survey locations of TCB and THW.

For qualitative walk-through surveys, the accessible shoreline of TCB and THW at each of the three shore heights: 2 m, 1.5 m and 1 m above Chart Datum was surveyed, and organisms encountered were recorded and their relative abundance noted. In particular, active search of horseshoe crabs and seagrasses were conducted to confirm whether these species are present along the sites.

For quantitative transect survey, one 50 – 100 m horizontal (belt) transect (actual length subject to the site conditions) was surveyed at each of the three shore heights: 2 m, 1.5 m and 1 m above Chart Datum of each survey location. On each transect, five quadrats (50 cm x 50 cm) were placed randomly in each transect to assess the abundance and distribution of flora and fauna. For each quadrat, surface layer to 5 cm depth was sieved and microbenthic organisms (e.g. crustaceans) were recorded and identified. Density of organisms was expressed as individuals / m2. Areas with seagrass were also recorded and identified and other information, such as the percentage cover, were also recorded. Sessile animals such as barnacles and oysters in each quadrat were not counted but estimated as percentage cover on the rock surface. All species of algae (encrusting, foliose and filamentous) were also identified and recorded by estimating the percentage cover on the rock surface. All organisms were identified to the lowest possible taxonomic level (at least Genus level). Species encountered outside the quadrat but in the vicinity of survey transect were also recorded.

For sedimentation rate monitoring, to avoid disturbance to the mudflat and nuisance to navigation, no fixed marker/monitoring rod was installed at the monitoring stations. A high precision Global Navigation Satellite System (GNSS) real time location fixing system (or equivalent technology) was used to locate the station in the precision of 1 mm, which is reasonable under flat mudflat topography with uneven mudflat surface only at micro level.

Measurements were taken directly on the mudflat surface. The Real Time Kinematic GNSS (RTK GNSS) surveying technology was used to measure mudflat surface levels and 3D coordinates of a survey point. The RTK GNSS survey was calibrated against a reference station in the field before and after each survey. The reference station is a survey control point established by the Lands Department of the HKSAR Government or traditional land surveying methods using professional surveying instruments such as total station, level and/or geodetic global navigation satellite system. The coordinates system is in HK1980 GRID system. The reference control station was surveyed and established by traditional land surveying methods using professional surveying instruments such as total station, level and/or geodetic GNSS. The accuracy was down to mm level and higher than the proposed RTK GNSS cm level so that the reference control station has relatively higher accuracy. As the reference control station has higher accuracy, it was set as true evaluation relative to the RTK GNSS measurement. All position and height correction were adjusted and corrected to the reference control station.

The precision of the measured mudflat surface level reading (vertical precision setting) was within 10 mm (standard deviation) after averaging the valid survey records of the XYZ HK1980 GRID coordinates. Each survey record at each station was computed by averaging at least three measurements that are within the above specified precision setting. Both digital data logging and written records were collected in the field. Field data on station fixing and mudflat surface measurement were recorded.

2.4.2 Monitoring Schedule for the Reporting Month

The schedule for soft shore ecological monitoring during the reporting period is provided in Annex H1.

2.4.3 Results and Observations

Impact soft shore ecological monitoring was conducted at three (3) monitoring locations at Tung Chung Bay (TCB), situated in the eastern side (TCB1), southern side (TCB2) and western side (TCB3) as well as one (1) monitoring location at Tai Ho Wan (THW) as shown in Figure 2.4 during the reporting period. Representative photographs taken during the impact monitoring are presented in Figure 2.5.

For qualitative walk-through surveys, the March 2019 monitoring results were similar to those recorded in the baseline monitoring conducted in April - June 2018. Horseshoe crabs and intertidal soft shore communities were recorded while seagrass beds were not observed. The survey results for each monitoring location are summarized in Table 2.11 below and detailed in Annex H2.

Table 2.11 Summary of Qualitative Walk-through Surveys

Date and Time (1)	Location	Horseshoe Crabs		Seagrass		No. of Other Intertidal Species
Date and Time (1)	Location	No. of Species	No. of Individuals	No. of Species	Area Coverage (m2)	No. of Other Intertidal Species
20/3/2019 12:00-15:30	THW	1	6	0	0	45
21/3/2019 13:00-16:00	TCB1	1	4	0	0	46
21/3/2019 13:00-16:00	TCB2	0	0	0	0	43
21/3/2019 13:00-16:00	TCB3	1	1	0	0	38

Note:

(1) For qualitative walk-through surveys, surveys were conducted on 20 March 2019 at THW and 21 March 2019 at TCB1, TCB2 and TCB3. For quantitative transect surveys, surveys were conducted on 20 March 2019 at THW and 7 & 21 March 2019 at TCB1, TCB2 and TCB3.

For quantitative transect surveys, a total of 4,439 individuals were recorded from all transects at monitoring stations TCB1-3 and THW. The most abundant group of intertidal soft shore communities recorded was gastropods, with a total of 4,279 individuals (relative abundance of 96.4% and density of 285 individual m-2). The summary of the top three dominant species at each shore height of each monitoring station and the complete list of species and density recorded are presented in Annex H2. When compared with the results obtained during the baseline monitoring as presented in the Baseline Monitoring Report ([8]), higher number of intertidal species were recorded at each monitoring location, though the abundance / density of intertidal communities was observed to be lowered. Nevertheless, there is no indication of change in composition of intertidal communities during the reporting period.

The mudflat surface levels at the four selected monitoring stations in March 2019 and the corresponding XYZ HK1980 GRID coordinates are presented in Table 2.12. When compared with the results obtained during the baseline monitoring as presented in the Baseline Monitoring Report ([9]), the sediment levels at most monitoring station generally decreased, except for THW. The ET will continue to observe the trend of change in sediment levels over time for further comparison and review.

Table 2.12 Results of Sedimentation Rate Monitoring

Monitoring Station	Northing (m)	Easting (m)	Z level at Mar 2019 (mPD)	Remarks
TCB1	816068.615	811129.297	1.243	Soft mudflat
TCB2	815812.710	810917.390	1.038	Soft mudflat
TCB3	816027.442	810696.227	0.979	Soft mudflat
THW	817472.071	815850.394	1.074	Soft mudflat

The impact monitoring results showed that there was no significant change in intertidal communities when compared against the data obtained during baseline monitoring. No action is thus required to be undertaken in accordance with the Event and Action Plan presented in Annex H3. The ET will continue to observe the change in density or the distribution pattern of horseshoe crab, seagrass and intertidal soft shore communities taking into account natural fluctuation in the occurrence and distribution pattern such as due to seasonal change.

2.5 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 and landscape and visual impacts under the Project. In the reporting period, four (4) site inspections were carried out on 8, 13, 21 and 28 March 2019.

Key observations during the site inspections are summarized in Table 2.13.

Table 2.13 Key Observations Identified during the Site Inspection in this Reporting Month

Inspection Date	Environmental Observations	Recommendations/ Remarks
8 March 2019	Site office near Ying Tung Estate Ÿ Accumulated general refuse in the skip was observed. Ÿ Chemicals were not placed in drip tray.	Site office near Ying Tung Estate Ÿ The contractor was reminded to maintain better housekeeping. Ÿ The contractor was reminded to place chemical containers in drip tray to avoid chemicals spillage.
13 March 2019	Site office near Ying Tung Estate Ÿ Accumulated general refuse on unpaved road and in the skip was observed.	Site office near Ying Tung Estate Ÿ The contractor was reminded to maintain better housekeeping.
21 March 2019	DCM Barge (ESC51) Ÿ Chemical waste container was not securely locked.	DCM Barge (ESC51) Ÿ The contractor was reminded to lock the chemical waste container.
28 March 2019	Site office near Ying Tung Estate Ÿ General refuse was observed not properly dispose of.	Site office near Ying Tung Estate Ÿ The contractor was reminded to dispose of the general refuse in designated/enclosed bin.

Inspection Date

Environmental Observations

Recommendations/ Remarks

8 March 2019

Site office near Ying Tung Estate

Ÿ Accumulated general refuse in the skip was observed.

Ÿ Chemicals were not placed in drip tray.

Site office near Ying Tung Estate

Ÿ The contractor was reminded to maintain better housekeeping.

Ÿ The contractor was reminded to place chemical containers in drip tray to avoid chemicals spillage.

13 March 2019

Site office near Ying Tung Estate

Ÿ Accumulated general refuse on unpaved road and in the skip was observed.

Site office near Ying Tung Estate

Ÿ The contractor was reminded to maintain better housekeeping.

21 March 2019

DCM Barge (ESC51)

Ÿ Chemical waste container was not securely locked.

DCM Barge (ESC51)

Ÿ The contractor was reminded to lock the chemical waste container.

28 March 2019

Site office near Ying Tung Estate

Ÿ General refuse was observed not properly dispose of.

Site office near Ying Tung Estate

Ÿ The contractor was reminded to dispose of the general refuse in designated/enclosed bin.

The Contractor has rectified all of the observations identified during environmental site inspections in the reporting period. The Contractor was reminded to implement all relevant mitigation measures outlined in the EIA Report and EM&A Manual.

2.6 Waste Management Status

The Contractor has registered as chemical waste producer under the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.

All dump trucks engaged on site was equipped with GPS during the reporting period. The Surveillance Team of the ET conducted regular site inspection on the dump trucks and their track records. Illegal dumping and landfilling of C&D materials were not recorded during the reporting period.

As informed by the Contractor, wastes generated during this reporting period include mainly non-inert construction wastes, recyclable materials and imported fill materials including mainly sand and public fill. The Project reuses inert construction materials from other projects which are not generated by the Project for reclamation activities i.e. imported fill for sand blanket. Reference has been made to the waste flow table prepared by the Contractor. The quantities of different types of wastes and imported fill materials are summarised in Table 2.14.

Table 2.14 Quantities of Different Waste Generated and Imported Fill Materials

Month/ Year	Inert C&D Materials (a) (m3)	Imported Fill (d) (sand) (m3)	Imported Fill (d) (public fill) (m3)	Inert Construction Waste Re-used (m3)	Non-inert Construction Waste (b) (m3)	Recyclable Materials (c) (kg)	Chemical Wastes (kg)
Month/ Year	Inert C&D Materials (a) (m3)	Imported Fill (d) (sand) (m3)	Imported Fill (d) (public fill) (m3)	Inert Construction Waste Re-used (m3)	Non-inert Construction Waste (b) (m3)	Recyclable Materials (c) (kg)
1 to 31 Jan 19	0	108,323	108,257	0	37.3	0	0
1 to 28 Feb 19	0	49,442	64,668	400	34.0	133	0
1 to 31 Mar 19	0	96,846	136,899	3770	67.0	21,515	0
Notes: (a) Inert construction wastes include hard rock and large broken concrete, and materials disposed as public fill. (b) Non-inert construction wastes include general refuse disposed at landfill. (c) Recyclable materials include metals, paper, cardboard, plastics and others. (d) Imported fill materials include sand and public fill.

2.7 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.

2.8 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 and the monitoring results for construction noise monitoring complied with the Limit Levels in the reporting period. No Project-related Action/ Limit level exceedances were recorded for water quality after preliminary investigation.

Cumulative statistics on exceedances is provided in Annex I.

2.9 Summary of Complaints, Notification of Summons and Successful Prosecutions

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

Two (2) environmental complaints related to suspected reddish pollutants in waterbody along the shores of Tung Chung New Town and in waterbody near Tung Chung Reclamation Area were received on 11 March 2019. One (1) environmental complaint related to pink fluid spread off in the Tung Chung Reclamation Area and strong fuel smell was received on 11 March 2019 and one (1) environmental complaint related to construction noise nuisance from construction vessels in the morning was received on 15 March 2019. Investigations were conducted for each of the environmental complaints in accordance with the complaint handling process as stated in the Complaint Management Plan.

Based on the information provided by the ER and the Contractor, supplemented results of water quality monitoring and ad-hoc site inspection, there was no project-related exceedance recorded for water quality after preliminary investigation. The Contractor was reminded to implement all relevant mitigation measures outlined in the EIA Report and EP submissions, in particular, the Contractor was reminded to strictly implement the mitigation measures specified in the Silt Curtain Deployment Plan. In addition, the Contractor was reminded to further enhance the work sequence during the morning period to avoid starting up of multiple work vessels at the same time that located near resident and implement noise mitigation measures to reduce noise nuisance to the nearby residential area. The ET will continue to check the implementation status of the mitigation measures.

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 April 2019 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
Land-based Works
· Roads, drainage, sewerage works and backfilling work at Area 58 (near Man Tung Road) · Preparation works for diversion of existing box culvert · Land-based ground investigation works · Installation of prefabricated vertical drain · Land DCM works	· Dust emission · Waste management for C&D Materials · Noise from plant operation · Emission of dark smoke from PMEs · Wastewater and drainage management	· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · 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

Activities

Key Issues

Key Mitigation Measures

Land-based Works

· Roads, drainage, sewerage works and backfilling work at Area 58 (near Man Tung Road)

· Preparation works for diversion of existing box culvert

· Land-based ground investigation works

· Installation of prefabricated vertical drain

· Land DCM works

· Dust emission

· Waste management for C&D Materials

· Noise from plant operation

· Emission of dark smoke from PMEs

· Wastewater and drainage management

· Good site practices

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

· 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

· Installation of sheet piles and pipe piles

· Laying of geotextile and sand blanket for reclamation works and DCM works

· Placing of sorted public fill

· DCM works

· Marine ground investigation works

· Installation of prefabricated vertical drain

· Elevation in impact on Water Quality due to sediment loss from sand blanket laying and marine filling works

· 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

· Wastewater and drainage management

· Provision of perimeter silt curtain

· Implementation of Dolphin Watching for the marine-based works

· Provision of a leading seawall of at least 200m before marine filling works

· Strictly follow requirement under CNP for the use of PMEs and works within restricted period

· Regular water spraying and provide tarpaulin sheets coverage on stockpiles

· Regular maintenance of engines and mechanical equipment

· Use of acoustic mat and other noise mitigation measures when necessary

· Implementation of wastewater and drainage management

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 next reporting period.

3.2 Monitoring Schedule for the Coming Month

The tentative schedules for environmental monitoring in April 2019 are provided in Annex J.

4 Conclusion and Recommendation

This EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 to 31 March 2019 in accordance with the Updated EM&A Manual and the requirements of the Environmental Permit (EP-519/2016).

Air quality (1-hour TSP), noise and water quality (DO, turbidity and SS) and soft shore ecological monitoring were carried out in the reporting period.

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

There was no notification of summons or prosecution recorded in the reporting period. Two environmental complaints related to suspected reddish pollutants in waterbody along the shores of Tung Chung New Town and in waterbody near Tung Chung Reclamation Area were received on 11 March 2019. One environmental complaint related to pink fluid spread off in the Tung Chung Reclamation Area and strong fuel smell was received on 11 March 2019 and one environmental complaint related to construction noise nuisance from construction vessels in the morning was received on 15 March 2019. Investigations were conducted for each of 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). Op cit.

([3]) ERM (2018a). Op cit.

([4]) ERM (2018a). Op cit.

([5]) 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.

([6]) 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.

([7]) ERM (2018a). Op cit.

([8]) ERM (2018b). Baseline Monitoring Report for Tung Chung New Town Extension (East). Submitted to EPD under EP-519/2016

([9]) ERM (2018b). Op cit.