Contents 

                        Abbreviations                                                                         

                        Executive Summary                                                              

1                      Introduction                                                                           

1.1                   Background                                                                            

1.2                   Scope of the EM&A Report                                                

1.3                   Organization Structure                                                   

1.4                   Summary of Construction Works                                

1.5                   Summary of EM&A Programme Requirements          

1.6                   Status of Statutory Environmental Compliance with the Environmental Permit                                                

1.7                   Status of Other Statutory Environmental Requirements                                                                         

2                      EM&A Results for Tung Chung East                             

2.1                   Air Quality                                                                                

2.2                   Noise Monitoring                                                                   

2.3                   Water Quality Monitoring                                                

2.4                   Compensation Woodland Monitoring                         

2.5                   Preserved/Transplanted Plant Species of Conservation Importance Monitoring                       

2.6                   Eco-shoreline Monitoring                                                

2.7                   Soft Shore Ecological Monitoring                             

2.8                   EM&A Site Inspection                                                            

2.9                   Waste Management Status                                              

2.10                 Landscape and Visual Monitoring                                

2.11                 Implementation Status of Environmental Mitigation Measures                                                                                  

2.12                 Summary of Exceedances of the Environmental Quality Performance Limit                                               

2.13                 Summary of Complaints, Notification of Summons and Successful Prosecutions                                                

3                      Future Key Issues                                                                 

3.1                   Construction Programme for the Coming Month

3.2                   Monitoring Schedule for the Coming Month          

4                      Conclusion and Recommendation                                 

 

 

Annexes

 

Annex A   Project Organisation

Annex B   Environmental Mitigation Implementation Schedule

Annex C   Status of Submissions and Implementation Status of Mitigation Measures under EP

Annex D   Status of Statutory Environmental Requirements

Annex E   Air Quality
Annex E1 Calibration Certificates
Annex E2 Monitoring Schedule
Annex E3 Monitoring Results
Annex E4 Event and Action Plan

Annex F   Noise
Annex F1 Calibration Certificates
Annex F2 Monitoring Schedule
Annex F3 Monitoring Results
Annex F4 Event and Action Plan

Annex G  Water Quality
Annex G1 Calibration Certificates
Annex G2 Monitoring Schedule
Annex G3 Monitoring Results
Annex G4 Event and Action Plan

Annex H  Compensation Woodland Monitoring

Annex I    Preserved/Transplanted Plant Species of Conservation Importance Monitoring

Annex J   Eco-shoreline Monitoring

Annex K  Landscape and Visual Monitoring

Annex K1 Examples of Landscape and Visual Mitigation Measures

Annex K2 Event and Action Plan

Annex L   Cumulative Statistics on Exceedances, Environmental Complaints, Notification of Summons and Status of Prosecutions

Annex M  Monitoring Schedule for the Next Reporting Period

 

 

Abbreviations

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 October 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 ([1])

Preserved Plant Species Monitoring        1 session

Environmental Site Inspection

-        Contract 1                                     4 sessions

-        Contract 2                                     4 sessions

-        Contract 3                                     4 sessions

-        Contract 7                                     4 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 Plan, Detailed Preservation and/or Translocation of Plant Species of Conservation Importance, Detailed Compensatory Woodland Planting 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

No exceedance of Limit Levels was recorded for construction noise monitoring in the reporting period.  However, one (1) 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.

Breaches of Action and Limit Levels for Water Quality

Dissolved Oxygen (DO) exceedances were recorded during the reporting period.  Relevant investigations and follow-up actions were conducted according to the EM&A programme.  The exceedances were considered not related to this Project after investigations.

 

Eco-shoreline Monitoring

Mangrove eco-shoreline and rocky eco-shoreline are under construction while the construction of vertical eco-shoreline has been substantially completed.

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.

Four (4) 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 November 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

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 ([2]), EIA Report of the TCNTE project ([3]) 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 October 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

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

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

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

Senior Engineer

Phoebe Tang

2231 4423

Engineer

Timothy H M Chan

2231 4473

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’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

·        Mangrove planting

·        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

·        Seawall construction (including vertical seawall, slopping seawall & eco-shoreline)

·        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 installing struts for ELS at Portion 6

·        Excavation for service reservoir, construction of valve chamber and soil nailing works at Portion 3

·        Watermain laying works at Portion 3 along Yu Tung Road

·        Sheet piling works for ELS for pipe jacking at Portion 3

·        Trench excavation for watermain laying works at Yi Tung Road at Portion 5

·        Trench excavation works and manhole construction for drainage works at Portion 5A

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

·        Preparation works for fabrication works at box-culvert at Portion 5B

·        Establishment works for the compensatory woodland planting at Potion 1 and 2

·        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

 

 

·        Excavation and ELS works at Portion 104

·        Excavation and ELS works at CUT no.1,2 & 3 and supporting building

·        Construction works for CUT no. 1 structure

·        Construction works and furniture installation of PM office at WA9

·        Construction works of Contractor office at WA6

·        Drainage, Sewerage and watermain works at Road L4, L3 and L5

·        Pipe laying works for twin rising mains/ watermain laying at Man Tung Road

·        Trial pits for pipe jacking works at Ying Tung Road

·        Preparation works for pipe jacking at Yi Tung Road

·        Foundation works for noise barrier at Portion 11

·        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

·        Open cut excavation for rising main and watermain at Portion 146-5

·        Trench excavation and pipe laying works at Portions 32 (Sham Shui Kok Drive), Portion 34 Phase 1 and Portions 36-38

·        Set up of temporary haul road and working platform at Portion 31 Slip Road A3 (RW-R7) & A4 (RW-FR1)

·        Sheetpilings for construction of retaining walls RW-R7 and RW-FR1

·        Demolition for Pak Mong Subway Extension Phase 1

·        Pipe pile installation and ELS works at Portion 32 (Access Road adjacent to MTRC Siu Ho Wan Depot)

·        Pre-drilling for 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 is planted.  Compensatory woodland planting was commenced on 26 August 2022 and completed on 30 September 2022.

 

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 for the first three months; 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

 

Impact Monitoring

On-going

 

 

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

Detailed Compensatory Woodland Planting Plan 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, Detailed Compensatory Woodland Planting Plan 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 20 and 11 October 2022, respectively, and Contractors of Contract 2 and 3 on 19 October 2022;

Ÿ   Environmental toolbox trainings on waste management and disposal, dust control for dump truck, dark smoke, use of spill kits, prevention of air pollution from site plants, dust suppression/waste management, operation of cement silo tank, nuisance to residence (light pollution/sudden noise/dusty work), site hygiene and wastewater handling, discharge and treatment facilities on 5, 7, 12, 14, 19, 21, 26 and 28 October 2022 were conducted for Contract 1;

Ÿ   Environmental toolbox trainings on waste collection, handling and disposal and wastewater handling, discharge and treatment facilities on 6, 10, 13, 20 and 27 October 2022 were conducted for Contract 2;

Ÿ   Environmental toolbox trainings on site clearance, formwork and falsework, fencing, excavation, breaking, drilling, cutting and polishing, loading, unloading and transfer of material and cement debagging and mixing on 6, 11, 13, 18, 20, 25 and 27 October 2022 were conducted for Contract 3;

Ÿ   Environmental toolbox trainings on scaffolding, rock bolts, rock dowels, soil nailing, shotcreting and percussive piling on 5, 12, 19 and 26 October 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, discharge license under Water Pollution Control Ordinance, registration as chemical waste producer, construction noise permit and specified processes license, 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

3, 8, 14, 20 and 26 October 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

22

12-41

279

500

Major dust sources in the reporting period included haul road traffic, excavation, loading and 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 ([4]) ([5]) 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

3, 8, 14, 20 and 26 October 2022

Sound Level Meter: Rion NL-52 (S/N: 00542913)

 

Acoustic Calibrator: LARSON DAVIS CAL200 (S/N: 11334)

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

67.4

66.7-68.5

75

NMS-CA-4

64.5

63.9-65.0

75

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, 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 were provided in Section 2.11. 

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 (b)

Depth

 

 

Easting

Northing

 

 

 

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

 

3, 5, 7, 10, 12, 14, 17, 19, 21, 24, 26, 28 and 31 October 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.

(b)    Water Quality Monitoring on 17 October 2022 during mid-flood tide and 31 October 2022 during mid-flood tide were cancelled due to issue of Strong Wind Signal No.3 by the Hong Kong Observatory.

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: 15M100005, 16H104234, 17E100747 and 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.  Monitoring event on 17 October 2022 during mid-flood tide and 31 October 2022 during mid-flood tide were cancelled due to issue of Strong Wind Signal No.3 by the Hong Kong Observatory.  Impact water quality monitoring results and graphical presentations were provided in Annex G3. 

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

Table 2.10 Details of Exceedances Recorded for Water Quality Monitoring

Date

Tide

Parameter

Station

Type

Justification

3 October 2022

ME

DO (S&M)

TCE-WQM1

Action

(a) (b)

ME

DO (S&M)

TCE-WQM2a

Action

ME

DO (S&M)

TCE-WQM2b

Action

ME

DO (S&M)

TCE-WQM3A

Action

ME

DO (S&M)

TCE-WQM4

Action

ME

DO (B)

TCE-WQM2a

Action

ME

DO (B)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM1

Action

MF

DO (S&M)

TCE-WQM2a

Action

MF

DO (S&M)

TCE-WQM2b

Action

MF

DO (S&M)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM4

Action

MF

DO (B)

TCE-WQM2a

Action

MF

DO (B)

TCE-WQM2b

Action

5 October 2022

ME

DO (S&M)

TCE-WQM1

Action

(a) (b)

ME

DO (S&M)

TCE-WQM2a

Action

ME

DO (S&M)

TCE-WQM2b

Action

ME

DO (S&M)

TCE-WQM3A

Action

(b) (d)

ME

DO (S&M)

TCE-WQM4

Action

(a) (b)

 

ME

DO (B)

TCE-WQM1

Action

ME

DO (B)

TCE-WQM2a

Action

(b) (c)

ME

DO (B)

TCE-WQM2b

Action

(a) (b)

ME

DO (B)

TCE-WQM3A

Action

(b) (d)

ME

DO (B)

TCE-WQM4

Action

(a) (b)

 

MF

DO (S&M)

TCE-WQM1

Action

MF

DO (S&M)

TCE-WQM2b

Action

MF

DO (S&M)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM4

Action

MF

DO (B)

TCE-WQM1

Action

MF

DO (B)

TCE-WQM2b

Action

MF

DO (B)

TCE-WQM3A

Action

7 October 2022

ME

DO (S&M)

TCE-WQM1

Action

(a) (b)

ME

DO (S&M)

TCE-WQM2a

Action

ME

DO (S&M)

TCE-WQM2b

Action

ME

DO (S&M)

TCE-WQM3A

Action

ME

DO (S&M)

TCE-WQM4

Action

ME

DO (B)

TCE-WQM2a

Action

ME

DO (B)

TCE-WQM2b

Action

ME

DO (B)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM1

Action

MF

DO (S&M)

TCE-WQM2a

Action

MF

DO (S&M)

TCE-WQM2b

Action

MF

DO (S&M)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM4

Action

MF

DO (B)

TCE-WQM2a

Action

MF

DO (B)

TCE-WQM3A

Action

(b) (d)

10 October 2022

ME

DO (S&M)

TCE-WQM2a

Action

(a) (b)

ME

DO (S&M)

TCE-WQM2b

Action

MF

DO (S&M)

TCE-WQM1

Action

MF

DO (S&M)

TCE-WQM2a

Action

MF

DO (S&M)

TCE-WQM2b

Action

MF

DO (S&M)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM4

Action

MF

DO (B)

TCE-WQM2b

Action

12 October 2022

ME

DO (S&M)

TCE-WQM2b

Action

(a) (b)

MF

DO (S&M)

TCE-WQM2a

Action

MF

DO (S&M)

TCE-WQM2b

Action

MF

DO (S&M)

TCE-WQM3A

Action

MF

DO (S&M)

TCE-WQM4

Action

 

 

 

 

 

 

Remarks:

(a)    The exceedance was not considered as caused by the construction of the Project due to the monitoring result was similar to the corresponding upstream/control station(s).

(b)    The exceedance was not considered as caused by the construction of the Project due to the corresponding upstream/control station(s) already exceeded the Action Level during the same tide.

(c)    The exceedance was not considered as caused by the construction of the Project due to the station was located further away/upstream from the Project works area.

(d)    The exceedance was not considered as caused by the construction of the Project due to areas of reclamation related marine works undertaken under the Project were surrounded by silt curtain which were inspected daily by the Contractor and inspected periodically by ER.  The silt curtain nearby the water quality monitoring stations was observed to be in good condition/well-functioning.

 

Based on the investigations conducted for each of the monitoring day with exceedances, the exceedances of DO were not likely caused by the work activities related to the Project. 

In addition, low levels of DO were recorded during previous three summer periods.  This further suggested that exceedances of DO are likely caused by seasonal fluctuation and a similar trend of lower levels of DO would likely occur again during this summer period.

Nevertheless, the Contractors were reminded to implement all relevant mitigation measures for the marine works, including regular checking of silt curtain integrity, provide periodic maintenance and maintain good site practice.  The ET will keep on checking monitoring data, plant, equipment and Contractor’s working methods. 

2.4                               Compensation Woodland Monitoring

Compensation woodland planting under Contract 2 was completed on 30 September 2022.  Monitoring for compensation woodland will be carried out after the confirmation of the monitoring proposal.  Photographic record of the compensation woodland planting is provided in Annex H.

2.5                               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.

2.5.1                          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 24 October 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 I.

The ET will continue to monitor the implementation of monitoring of in-situ preserved plant species of conservation importance.

2.5.2                          Transplanted Plant Species of Conservation Importance

Site visit to the receptor site for the transplanted plant species of conservation importance under Contract 2 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. 

The transplanted plant species of conservation importance were both certified as dead trees by the QP on 15 June 2022 as no living signs were observed.  Replacement planting of new trees of the same species, or other species to the satisfaction of the Project Manager, at the Contractors’ expense would be deemed necessary in accordance with the conditions under the approved Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance.  Replacement planting proposal prepared by the QP was submitted to EPD and under further revision on replacement plant species selection according to the suggestion by EPD and Agriculture, Fisheries and Conservation Department.

2.6                               Eco-shoreline Monitoring

Mangrove eco-shoreline and rocky eco-shoreline are under construction while the construction of vertical eco-shoreline has been substantially completed.  Photographic record is provided in Annex J.

No eco-shoreline monitoring was scheduled during the reporting period.  Monitoring shall be conducted for at least 3 years after the completion of reclamation works, twice in wet season and twice in dry season, in order to determine the effectiveness of the eco-shoreline in accordance with the Updated EM&A Manual.

2.7                               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 December 2022 in accordance with the Updated EM&A Manual.

2.8                               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 6, 14, 20 and 27 October 2022 for Contract 1, four (4) site inspections were carried out on 5, 12, 19 and 26 October 2022 for Contract 2, four (4) site inspections were carried out on 7, 13, 19 and 28 October 2022 for Contract 3 and four (4) site inspections were carried out on 5, 11, 18 and 25 October 2022 for Contract 7.

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

Contract No.

Inspection Date

Environmental Observations

Recommendations/ Remarks

Contract 1

6 October 2022

 

Tung Chung Reclamation Area (Near VS1)

Ÿ   Gaps were observed in the silt curtain.

Barge (Lantau Pioneer 05)

Ÿ   Dark smoke was observed generated from barge.

Tung Chung Reclamation Area (Near VS1)

Ÿ   The Contractor was urged to carry out maintenance.

Barge (Lantau Pioneer 05)

Ÿ   The Contractor was reminded to remove the water in drip tray.

14 October 2022

Area E

Ÿ   Chemical stains were observed on ground.

Area E

Ÿ   The Contractor was urged to remove the chemical stains.

20 October 2022

IORC, VS2, VS3, VS4

Ÿ   No deficiency was observed.

Ÿ   Nil

27 October 2022

Breakwater

Ÿ   No deficiency was observed.

Ÿ   Nil

Contract 2

5 October 2022

TTA, Portion 3

Ÿ   Mud trail was observed on public road.

 

HDD

Ÿ   Construction materials were observed inside tree protection zone.

Portion 3

Ÿ   Discharge of muddy runoff into open channel was observed.

 

TTA, Portion 3

Ÿ   The Contractor was reminded to provide mitigation measures and keep the public road clean.

HDD

Ÿ   The Contractor was reminded to remove construction materials and keep the tree protection zone clean.

Portion 6

Ÿ   The Contractor was urged to provide mitigation measures and rectify the situation immediately.

12 October 2022

 

HDD, TTA, Portion 3, 6

Ÿ   No deficiency was observed.

 

Ÿ   Nil

19 October 2022

HDD

Ÿ   Muddy runoff into drainage was observed.

 

 

 

Portion 3

Ÿ   Discharge of muddy water into drainage was observed.

HDD

Ÿ   The Contractor was urged to implement mitigation measures to prevent polluted site runoff from discharging into near drainage systems/waterbodies.

Portion 3

Ÿ   The Contractor was urged to provide mitigation measures and rectify the situation immediately.

26 October  2022

TTA

Ÿ   Mud trail was observed on public road.

 

HDD

Ÿ   Construction materials were observed inside tree protection zone.

Section 132

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

 

 

Ÿ   Stockpile of dusty materials was observed not covered.

TTA

Ÿ   The Contractor was reminded to provide mitigation measures and keep the public road clean.

HDD

Ÿ   The Contractor was reminded to remove construction materials and keep the tree protection zone clean.

Section 132

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

Ÿ   The Contractor was urged to provide mitigation measures for dust emission, such as covering the stockpile of dusty materials with impervious sheeting.

Contract 3

7 October 2022

 

CUT Area

Ÿ   Accumulated general refuse was observed on ground.

CUT Area

Ÿ   The Contractor was reminded to clear the general refuse regularly and provide mitigation measures, such as providing more rubbish bins for workers.

13 October 2022

CUT Area

Ÿ  Dust was observed generated from dry haul road.

CUT Area

Ÿ  The Contractor was urged to carry out dust mitigation measures, such as watering.

19 October 2022

CUT Area

Ÿ  No sorting of chemical waste, general refuse and construction waste was observed.

 

TTA

Ÿ  Appropriate Non-Road Mobile Machinery (NRMM) label was not observed on excavator.

CUT Area

Ÿ  The Contractor was urged to carry out material sorting for chemical waste, general refuse and construction waste.

TTA

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

28 October 2022

TTA

Ÿ  Mud trail was observed on public road.

TTA

Ÿ  The Contractor was reminded to provide mitigation measures and keep the public road clean.

Contract 7

5 October 2022

Portion 146-5

Ÿ  Noise mitigation measures were not sufficient.

 

Portion 146-5

Ÿ  The Contractor was reminded to provide adequate noise mitigation measures.

11 October 2022

Area E near Pak Mong

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

Area E near Pak Mong

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

18 and 25 October 2022

Area E near Pak Mong, Portion 30, 31, 32, 146-5

Ÿ  No deficiency was observed.

Ÿ  Nil

The Contractors have rectified all of the observations identified during environmental site inspections in the reporting period.  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. 

2.9                               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 2.14. 

Table 2.14 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 Aug 22

0.0

0.0

5,577.0

43,455.0

291.6

118,677.0 (g)

0.0

1 to 30 Sep 22

0.0

0.0

3,584.0

62,276.0

247.9

0.0

4,000.0

 

1 to 31 Oct 22

0.0

0.0

150.0

54,849.0

123.8

255.0

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) 118,677kg of steel was recycled from demolition of the previous site office.

2.10                            Landscape and Visual Monitoring

Implementation of applicable landscape and visual mitigation measures was monitored in accordance with the Updated EM&A Manual.  All measures undertaken by the Contractor during the construction phase and establishment work phase shall be audited by ET to ensure compliance with the intended aims of the measures.

The implementation status of the environmental protection measures is summarized below in Table 2.15.  Examples of landscape and visual mitigation measures are presented in Annex K1.  The monitoring programme for detailed design, construction and establishment stages is presented in Table 2.16.  Event and Action Plan for Landscape and Visual impacts is stated in Annex K2.

Table 2.15      Implementation Status of Landscape and Visual Mitigation Measures

Landscape and Visual Mitigation Measures during Construction

Implementation Status

Relevant Contract(s) in the Reporting Period

MM1- Optimization of Construction Areas & Providing Temporary Landscape on Temporary Construction

The implementation of mitigation measures was checked by ET during weekly site inspection.  Implementation of the measures by Contractors was observed.

All works contracts

 

MM3 - Preservation of Potentially Registerable OVTs, Rare and Protective Vegetation

Tree Protection Specifications were provided in the relevant Contract Specifications respectively for implementation by the Contractors under the Project.

 

The Contractors submitted Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance under EP condition 2.21.

 

The Contractors’ performance on the implementation of the tree maintenance and protection measures were observed and checked by the ET weekly during construction period.

All works contracts

MM4 - Transplanting of Existing Trees

 

Tree Transplanting Specifications were provided in the relevant Contract Specifications respectively for implementation by the Contractors under the Project where trees would unavoidably be affected by the construction works.

 

The Contractors submitted Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance under EP condition 2.21.

 

The Contractors’ performance on the implementation of trees maintenance and protection measures on transplanted trees were observed and checked by the ET weekly during construction period.

Contract 2

MM5 – Screen Hoarding

 

The implementation of mitigation measures was checked by ET during weekly site inspection.  Implementation of the measures by Contractors was observed.

All works contracts

MM6 – Adopting Non-dredge Method for the Reclamation

The implementation of mitigation measures was checked by ET during weekly site inspection.  Implementation of the measures by Contractors was observed.

Contract 1

MM9 – Providing Natural Rock Material/ Planting for Artificial Seawall

Rock armour reused and construction of eco-shoreline (mangrove eco-shoreline, rocky eco-shoreline and vertical eco-shoreline) in progress.  The implementation of mitigation measures was checked by ET during weekly site inspection.  Implementation of the measures by Contractors was observed.

Contract 1

MM18 – Landscaping on Slopes

Not applicable during the reporting period

NA

MM20 – Lighting Control

The implementation of mitigation measures was checked by ET during weekly site inspection.  Implementation of the measures by Contractors was observed.

All works contracts

Table 2.16      Monitoring Programme for Landscape and Visual

Stage

Monitoring Task

Monitoring Report

Form of Approval

Frequency

Design

Monitoring of design works against the recommendations of the landscape and visual impact assessments within the EIA should be undertaken by the Engineer and Landscape Architect, to ensure that they fulfil the intentions of the mitigation measures.  Any changes to the design, including design changes on site should also be checked

Report by CEDD / ER confirming that the design conforms to requirements of EP.

Approval by Project Proponent

At completion of design stage

Construction

Monitoring of the contractor’s operations during the construction period.

Report on Contractor's compliance by ET

Counter-signature of report by IEC

Monthly

Establishment Works

Monitoring of the planting works during the 24-months Establishment Period after completion of the construction works.

Report on Contractor's compliance by ET

Counter-signature of report by IEC

Bi-monthly

 

2.11                            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.

2.12                            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, one (1) Action Level was triggered from one (1) environmental complaint 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 L.

2.13                            Summary of Complaints, Notification of Summons and Successful Prosecutions

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

Four (4) environmental complaint 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.  Environmental complaints in the reporting period are summarized below.

 

Complaint(s)

Investigation/Follow up action(s)

1

 

Environmental complaint related to Contract 3 regarding sheet piling noise at Man Tung Road was referred by EPD on 19 October 2022.

Based on the information provided by the Contractor with confirmation by RSS, only concrete blinding, water main installation and general site cleaning were carried out.  No sheet piling was conducted at the concerned area.  Therefore, the complaint was unlikely related to the Project.

2

 

Environmental complaint related to Contract 3 regarding dust at the reclamation site was referred by CEDD on 19 October 2022.

Based on information provided by the Contractor with confirmation by RSS, water trucks and sprinklers were used for regular watering of haul roads and site areas in order to prevent dust emission throughout the site.  In addition, traffic speed of all vehicles were limited to 8km/h or below.  Nevertheless, the Contractor provided toolbox-training regarding construction dust and suppression for workers and frontline staff.

3

 

Environmental complaint related to Contract 3 regarding debris at the junction at Ying Hei Road and Yi Tung Road was referred by EPD on 27 October 2022.

Based on information provided by the Contractor with confirmation by RSS, no inert C&D materials was delivered or disposed offsite and all dump trucks employed by Contract 3 were empty when leaving site.  In addition, the junction of Ying Hei Road and Yi Tung Road is located approximately 600m away from the site exit.  Therefore, the complaint was unlikely related to the Project.

4

 

Environmental complaint related to Contract 3 regarding water splashing from road cleaning and light nuisance was referred by EPD on 27 October 2022.

Based on information provided by the Contractor with confirmation by RSS and the regular inspections conducted by ET, wheel washing works were only carried out inside the site exit, which is approximately 200m away from the concerned area.  In addition, road sweepers only provide road cleaning service along Ying Hei Road (Westbound), whereas the concerned area is located at Ying Hei Road (Eastbound).  As for the light nuisance, no tower crane was under the Project.  Therefore, the complaint was unlikely related to the Project.

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

3                 Future Key Issues

3.1                               Construction Programme for the Coming Month

Works to be undertaken in the next monitoring period of November 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

·        Placing of sorted public fill

·        Box culvert construction

·        Mangrove planting

·        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

·        Seawall construction (including vertical seawall, slopping seawall & eco-shoreline)

·        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)

·        Pile Head Treatment and Pile Cap Construction at Portion 6

·        Construction for valve chamber, service reservoir and soil nailing works at Portion 3

·        Watermain laying works at Portion 3 along Yu Tung Road

·        Sheet piling works for ELS and excavation works for pipe jacking at Portion 3

·        Excavation and watermain laying works at Yi Tung Road at Portion 5

·        Trench excavation, manhole construction and pipe laying for drainage works at Portion 5A

·        Plant setup and drilling works for HDD works at Portion 3

·        Preparation works for fabrication of precast unit for box culvert at Portion 5B

·        Establishment works for the compensatory woodland planting at Potion 1 and 2

·        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

 

 

·        Excavation and ELS works at Portion 104

·        Excavation and ELS works at CUT no.1,2 & 3 and supporting building

·        Construction works for CUT no. 1 structure

·        Construction works and furniture installation of PM office at WA9

·        Construction works of Contractor office at WA6

·        Drainage, Sewerage and watermain works at Road L4, L3 and L5

·        Pipe laying works for twin rising mains/ watermain laying at Man Tung Road

·        Preparation works for pipe jacking works at Ying Tung Road

·        Preparation works for pipe jacking at Yi Tung Road

·        Foundation works for noise barrier at Portion 11

·        Road widening works at Ying Hei 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

·        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

·        Open cut excavation and pipe laying for rising main and watermain at Portion 146-5

·        Trench excavation and pipe laying works at Portions 32 (Sham Shui Kok Drive), Portion 34 Phase 1 and Portions 36-38

·        Sheetpilings for construction of retaining walls RW-R7 and RW-FR1

·        Demolition for Pak Mong Subway Extension Phase 1

·        Pipe pile installation and ELS works at Portion 32 (Access Road adjacent to MTRC Siu Ho Wan Depot)

·        Pre-drilling for 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 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 November 2022 are provided in Annex M.

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 October 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) and in-situ preserved plant species of conservation importance monitoring were carried out in the reporting period. 

The monitoring results for air quality monitoring (1-hour TSP) 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, one (1) Action Level was triggered from one (1) environmental complaint related to noise nuisance in the reporting period.

No Project-related Action/Limit level exceedances were recorded for water quality after investigation.

Mangrove eco-shoreline and rocky eco-shoreline are under construction while the construction of vertical eco-shoreline has been substantially completed.

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 was carried out in the reporting period.  Replacement planting proposal prepared by the QP was submitted to EPD and under further revision on replacement plant species selection according to the suggestion by EPD and Agriculture, Fisheries and Conservation Department.

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.  Four (4) 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])       Water quality monitoring on 17 October 2022 during mid-flood tide and 31 October 2022 during mid-flood tide were cancelled due to issue of Strong Wind Signal No.3 by the Hong Kong Observatory.

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

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

([4])       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.

([5])       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.