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                   Soft Shore Ecological Monitoring                             

2.5                   EM&A Site Inspection                                                           

2.6                   Waste Management Status                                              

2.7                   Implementation Status of Environmental Mitigation Measures   

2.8                   Summary of Exceedances of the Environmental Quality Performance Limit                                                                                             

2.9                   Summary of Complaints, Notification of Summons and Successful Prosecutions                                                                          

3                      Future Key Issues                                                                 

3.1                   Construction Programme for the Coming Month

3.2                   Key Issues for the Coming Month                                 

3.3                   Monitoring Schedule for the Coming Month          

4                      Conclusion and Recommendation                                

 


 

Annexes

Annex A       Project Organisation

Annex B       Works Programme

Annex C       Environmental Mitigation Implementation Schedule

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

Annex I    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

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 (ížthe ProjectíĘ) 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 August 2018 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

 

 

íP         Construction of site office near Ying Tung Estate

íP         Demolition of site office near Century Link

íP         Removal of rock armour above +2.5mPD

íP         Re-provision of Pak Mong Pier

íP         Dust emission

íP         Waste management for C&D Materials

íP         Noise from barge and plant operation during normal working hours and restricted hours

íP         Good site practices

íP         Regular water spraying on stockpiles

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

 

 

 

Marine-based Works

 

 

íP         Installation of pipe piles and sheetpiles for ground investigation and wave protection measures

íP         Removal of rock armour below +2.5mPD

íP         Marine ground investigation works

íP         Laying of geotextile and sand blanket for reclamation works and Deep Cement Mixing (DCM) trial embankment

íP         Elevation in SS due to sediment loss from sand blanket laying works

íP         Disturbance to Chinese White Dolphin

íP         Provision of perimeter silt curtain for the Project

íP         Implementation of Dolphin Watching for the marine-based works

 

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                          12 sessions

Environmental Site Inspection             5 sessions

Environmental Management Meeting  1 session

Environmental auditing works, including weekly site inspections of construction works conducted by the ET, audit of works vessels and audit of implementation of Dolphin Watching Plan were conducted in the reporting period.  In addition, the ET provided a training on dolphin watching during the reporting period.  Based on information including ETíŽs observations for the reporting period, environmental pollution control and mitigation measures for the Project were properly implemented.

Snapshots of EM&A Activities in the Reporting Period

Dust Monitoring conducted by ET

Spill Response Kit checked by ET

PHOTO-2018-08-22-13-18-02

Silt Curtain visually checked by ET

Noise Monitoring conducted by ET

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, Action Level was triggered from three (3) environmental complaints related to noise nuisances received on 13, 21 and 24 August 2018 during the reporting period.  Investigations were conducted for each of the noise nuisances in accordance with the Event and Action Plan and the complaint handling process as stated in the Complaint Management Plan.  It is concluded that the construction works were conducted in accordance with the relevant statutory requirements, including the EP and the Construction Noise Permit.  Nevertheless, the Contractor was reminded to reduce construction noise levels, as far as practicable, especially when working next to the residential areas around the Project.

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 and Limit Levels.  The preliminary investigation findings suggested that the exceedances were not related to the Project. 

Environmental Complaints, Non-compliance & Summons

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

Three (3) environmental complaints related to noise nuisances were received on 13, 21 and 24 August 2018 during 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.  Based on the information provided by the Contractor, supplemented by the regular and ad-hoc noise monitoring conducted around the Project area, it is considered that the Contractor had complied with the relevant statutory requirements for the construction works, including the EP and the Construction Noise Permit.  Nevertheless, the Contractor was reminded to reduce construction noise levels, as far as practicable, especially when working next to the residential areas around the Project.  The valid construction noise permits shall be displayed at the relevant construction areas for public information.  The ET will continue to check the implementation status of the mitigation measures and conduct noise monitoring as per EM&A requirements.

Reporting Change

There was no reporting change in the reporting period.

Upcoming Works for the Next Reporting Period

Works to be undertaken in the next monitoring period of September 2018 are summarized in Table 2 below, together with the key issues and the key mitigation measures:

Table 2           Major Activities for the Next Reporting Period

Activities

Key Issues

Key Mitigation Measures

Land-based Works

 

 

íP         Construction of site office near Ying Tung Estate

íP         Demolition of site office near Century Link

íP         Removal of rock armour above +2.5mPD

íP         Re-provision of Pak Mong Pier

íP         Dust emission

íP         Waste management for C&D Materials

íP         Noise from barge and plant operation during normal working hours and restricted hours

íP         Good site practices

íP         Regular water spraying on stockpiles

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

 

 

 

Marine-based Works

 

 

íP         Installation of pipe piles and sheetpiles for ground investigation and wave protection measures

íP         Removal of rock armour below +2.5mPD

íP         Installation of silt curtain near Tai Ho Wan

íP         Laying of geotextile and sand blanket and ground improvement works for reclamation works and Deep Cement Mixing (DCM) trial embankment

íP         Marine filling works

íP         Diversion of existing box culvert

íP         Marine ground investigation works

íP         Elevation in SS due to sediment loss from sand blanket laying and marine filling works

íP         Disturbance to Chinese White Dolphin

íP         Provision of perimeter silt curtain for the Project

íP         Implementation of Dolphin Watching for the marine-based works

íP         Provision of a leading seawall of at least 200m before marine filling 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.

 


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 (ížthe ProjectíĘ) 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 (ížthe ProjectíĘ) 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  August 2018 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

Eddie Lam

2231 4445

Engineer

 

Colin Wong

2231 4417

EngineeríŽs Representative

(AECOM Asia Company Limited)

 

Principal Resident Engineer

Frankie Fan

9325 0903

Senior Resident Engineer

Robo Lo

6622 1130

Resident Engineer

Vincent Leung

9800 0448

Senior Inspector of Works

 

C K Liu

9433 6255

Environmental Team (ET) (ERM-Hong Kong, Limited)

 

ET Leader

Jovy Tam

2271 3113

Deputy ET Leader

Deputy ET Leader

Raymond Chow

Louis Kwan

2271 3114

9275 0975

Independent Environmental Checker (IEC)

(Black & Veatch Hong Kong Limited)

 

 

 

IEC

Manuel Chua

2608 7314

Deputy IEC

 

Ivan Ting

9222 9490

Contractor (Contract No. NL/2017/03 TCNTE íV Reclamation and Advance Works)

(Build King íV 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

The programme of the construction is shown in Annex B.

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

Land-based Works:

Ÿ   Construction of site office near Ying Tung Estate;

Ÿ   Demolition of site office near Century Link;

Ÿ   Removal of rock armour above +2.5mPD; and

Ÿ   Re-provision of Pak Mong Pier.

Marine-based Works:

Ÿ   Installation of pipe piles and sheetpiles for ground investigation and wave protection measures;

Ÿ   Removal of rock armour below +2.5mPD;

Ÿ   Marine ground investigation works; and

Ÿ   Laying of geotextile and sand blanket for reclamation works and Deep Cement Mixing (DCM) trial embankment.

The environmental mitigation implementation schedule is presented in Annex C.

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 1.2        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

 

 

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

Scheduled to be conducted in September 2018

 

 

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 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 Dolphin Watching Plan, Works Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response 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   One (1) dolphin watcher training provided by ET on 15 August 2018;

Ÿ   One (1) environmental management meeting was held with the Contractor, ER, ET, IEC and CEDD on 23 August 2018;

Ÿ   Environmental toolbox trainings on light pollution control and noise mitigation measure provided by the contractor for the workers on 4 and 27 August 2018;.

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 Table 1.3. 

Table 1.3        Status of Submissions and Implementation Status of Mitigation Measures under EP

EP Condition

Submission / Implementation Status

Status

2.1

Set up of Community and Professional Liaison Groups

Community and Professional Liaison Groups were set up.

2.1

Complaint Management Plan

Updated Plan was submitted on 1 August 2018 and accepted by EPD on 7 August 2018

2.5

Employment of Qualified Ecologist(s)

Qualified Ecologists have been employed to carry out work relating to ecological aspects.

2.6

Employment of Surveillance Team

Surveillance Team has been employed to conduct regular site inspection.

2.11

Management Organizations

Accepted by EPD

2.12

Construction Works Schedule and Location Plans

Accepted by EPD

2.13

Works Vessel Travel Route Plan

Accepted by EPD

2.14

Eco-shoreline Implementation Plan

To be prepared no later than 3 months before the commencement of construction of the eco-shoreline at TCE

2.15

Dolphin Watching Plan

Accepted by EPD

2.16

Silt Curtain Deployment Plan

Accepted by EPD

2.17

Spill Response Plan

Accepted by EPD

2.18

Plan on Provision of Buffer Zones

To be prepared no later than 3 months before the commencement of construction works at Tung Chung Valley

2.19

River Park Plan

To be prepared no later than 3 months before the commencement of construction works at Tung Chung Valley

2.20

Habitat Enhancement and Translocation Plan for Amphibian Species of Conservation Importance

To be prepared no later than 3 months before the commencement of construction works at Tung Chung Valley

2.21

Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance

To be prepared no later than 3 months before the commencement of construction works at Tung Chung Valley

2.22

Detailed Compensatory Woodland Planting Plan

To be prepared no later than 3 months before the commencement of construction works at Tung Chung Valley

2.23

Plan for Review of Use of New Low Noise Road Surfacing Material(s)

To be prepared no later than 3 months before the commencement of roadworks

2.24

Waste Management Plan

Accepted by EPD

2.25

(i) no dredging of marine sediment shall be carried out for the Project

(ii) all reclamation filling works shall be carried out within a leading seawall of at least 200m; and

(iii) silt curtains surrounding the reclamation area shall be deployed in accordance with the Silt Curtain Deployment Plan

Under implementation

 

Under implementation

 

 

Under implementation

 

2.26

Implement Silt Curtain Deployment Plan and Spill Response Plan

Under implementation

 

2.27

Implement dolphin exclusion zone of 250m around the reclamation site at Tung Chung East during the installation of the perimeter silt curtains and any re-deployment of the perimeter silt curtains by Qualified Ecologist(s)

Under implementation

 

2.28

Once the perimeter silt curtains are installed or re-deployed, the Dolphin Watching Plan shall be implemented as part of the EM&A programme

Under implementation

 

2.29

(i) no underwater blasting and percussive piling shall be carried out for the Project; and

(ii) air compressors and other noisy equipment mounted on works vessels shall be acoustically-decoupled

Under implementation

 

 

Under implementation

 

2.30

Implement Works Vessel Travel Route Plan

Implement Eco-shoreline Implementation Plan

Implement Dolphin Watching Plan

Under implementation

 

To be implemented

 

Under implementation

2.31

Implement Plan on Provision of Buffer Zones, River Park Plan, Habitat Enhancement and Translocation Plan for Amphibian Species of Conservation Importance, Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance and Detailed Compensatory Woodland Planting Plan

To be implemented

2.32

Implement Plan for review of the use of new road surfacing material(s)
Implement Waste Management Plan

To be implemented

 

Under implementation

2.33

Install noise barriers and low noise road surfacing at the extended Chung Mun Road and Road D3

All noise mitigation measures implemented shall be properly maintained during the operation of the above roads

To be implemented

 

2.34

Implement a deodouriser with an odour removal efficiency of at least 95% shall be installed, operated and maintained within each sewage pumping station.  The exhaust of the deodouriser shall be oriented away from sensitive receivers; and all odourous facilities of each sewage pumping station shall be enclosed and negative pressure shall be maintained within the facilities.

To be implemented

 

2.35

Enclose all the pumps inside a building structure

To be implemented

 

2.36

(i) a 100% standby pumping capacity shall be installed and maintained

(ii) a 50% spare pumping capacity shall be installed and maintained

(iii)  dual-feed power supply shall be installed and maintained; and

(iv)  an emergency facility with a 6-hour storage capacity of average dry weather flow shall be installed and maintained.

To be implemented

 

To be implemented

 

To be implemented

 

To be implemented

 

 

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 íV Planned Public Rental Housing Development

1-hour TSP

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

6, 10, 16, 22 & 28 Aug 2018

1-hour TSP Dust Meter

SIBATA LD-5R (S/N: 620402)

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

75

29-205

279

500

The major dust sources in the reporting period included excavation and sand blanket laying works under the Project as well as nearby traffic emissions.

All the 1-hour TSP results were below the Action and Limit Levels at the monitoring location 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 station 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

Location

Parameter

Frequency and Duration

Monitoring Dates

Equipment

NMS-CA-4

Residential premise in the reclamation area next to Tung Chung East

30-minute measurement between 0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10 and L90 would be recorded.

Once per week for 30 mins during the construction period of the Project

6, 10, 16, 22 & 28 August 2018

Sound Level Meter: Rion NL-52 (S/N: 00331805)

 

Acoustic Calibrator: LARSON DAVIS CAL200 (S/N: 11333)

Remark:

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 Stations NMS-CA-1) and operation of schools (for Monitoring Stations NMS-CA-2 and NMS-CA-3).

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-4

65.1

59.9-67.2

75

Major noise sources during the noise monitoring included noise from armour rock removal, sheet piling and grab barge works, and nearby traffic noise and aircraft noise.

No noise Limit Level exceedance was recorded in the reporting period. However, Action Level was triggered from three (3) environmental complaints related to noise nuisances received on 13, 21 and 24 August 2018 during the reporting period.  Investigation was conducted for each of the complaints in accordance with the Event and Action Plan (Annex F4) and the details are provided in Section 2.9.

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

Depth

 

 

Easting

Northing

 

 

TCE-WQM1

Near Airport Channel

811838

817341

Ÿ Dissolved Oxygen (DO) (mg/L and % saturation)

Ÿ Temperature (óXC)

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 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 (2)

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.

(2) The sampling location was shifted for ~80m north with coordinates 814680 (Easting) and 817940 (Northing) due to the presence of nearby work barges since 26 July 2018.  The ET was liaising with the Contractor to obtain information on the expected duration and extent of the works for further proposal of alternative monitoring location.

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)

YSI 6920 v2 (S/N: 0001C6A7; S/N: 00019CB2)

Note 1: Two of the multi-parameter water quality systems were 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 12 monitoring events for impact water quality monitoring were conducted at all designated monitoring stations during the reporting period.  The monitoring event on 14 August 2018 was cancelled due to the issue of Strong Wind Signal No. 3.  Impact water quality monitoring results and graphical presentations are provided in Annex G3. 

Action level exceedances were recorded for water quality impact monitoring in the reporting period.  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

Group

Date

Tide

Parameter

Station

Type

Remarks

1

02 Aug 2018

ME

DO(B)

TCE-WQM1

Action

The exceedances were 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 endorsed by ER and observed to be in good condition and functioning well.

Ÿ   DO levels at the monitoring stations were higher than or similar to those at corresponding control/upstream stations.

Ÿ   During summer season, the marine water experienced temperature and salinity stratification, where layers of water build up with different levels of temperature and salinity which prevent mixing of water masses, leading to hypoxia (low oxygen levels) at the sea bottom.

 

 

 

 

 

ME

DO(B)

TCE-WQM2a

Action

 

 

MF

DO(B)

TCE-WQM1

Action

 

 

MF

DO(B)

TCE-WQM2a

Action

 

 

MF

DO

TCE-WQM2b

Action

 

04 Aug 2018

ME

DO(B)

TCE-WQM1

Action

 

 

ME

DO

TCE-WQM2a

Action

 

 

ME

DO(B)

TCE-WQM2b

Action

 

 

ME

DO(B)

TCE-WQM3A

Action

 

 

MF

DO(B)

TCE-WQM1

Action

 

 

MF

DO

TCE-WQM2a

Action

 

 

MF

DO

TCE-WQM2b

Action

 

07 Aug 2018

ME

DO

All Stations

Action

 

 

MF

DO

TCE-WQM1

Action

 

 

MF

DO(B)

TCE-WQM2a

Action

 

 

MF

DO

TCE-WQM2b

Action

 

 

MF

DO(S&M)

TCE-WQM4

Action

 

09 Aug 2018

ME

DO

TCE-WQM1

Action

 

 

ME

DO(B)

TCE-WQM2a

Action

 

 

ME

DO

TCE-WQM2b

Action

 

 

ME

DO

TCE-WQM3A

Action

 

 

MF

DO(B)

TCE-WQM1

Action

 

 

MF

DO

TCE-WQM2b

Action

 

 

MF

DO(B)

TCE_WQM3A

Action

 

11 Aug 2018

ME

DO

All Stations

Action

 

 

MF

DO

All Stations

Action

 

16 Aug 2018

ME

DO

All Stations

Action

 

 

MF

DO

All Stations

Action

 

18 Aug 2018

ME

DO

All Stations

Action

 

 

MF

DO

All Stations

Action

 

21 Aug 2018

ME

DO

TCE-WQM1

Action

 

 

ME

DO

TCE-WQM2a

Action

 

 

ME

DO

TCE-WQM2b

Action

 

 

ME

DO

TCE-WQM3A

Action

 

 

ME

DO(S&M)

TCE-WQM4

Action

 

 

MF

DO

TCE-WQM1

Action

 

 

MF

DO

TCE-WQM2a

Action

 

 

MF

DO

TCE-WQM2b

Action

 

 

MF

DO(B)

TCE-WQM3A

Action

 

23 Aug 2018

ME

DO

TCE-WQM1

Action

 

 

ME

DO(B)

TCE-WQM2a

Action

 

 

ME

DO

TCE-WQM2b

Action

 

 

ME

DO(B)

TCE-WQM3A

Action

 

 

MF

DO(B)

TCE-WQM1

Action

 

 

MF

DO(B)

TCE-WQM2a

Action

 

 

MF

DO(B)

TCE-WQM2b

Action

 

25 Aug 2018

ME

DO(B)

TCE-WQM1

Action

 

 

ME

DO(B)

TCE-WQM2b

Action

 

 

MF

DO(B)

TCE-WQM2a

Action

 

 

MF

DO(B)

TCE-WQM2b

Action

 

28 Aug 2018

ME

DO

All Stations

Action

 

 

MF

DO

TCE-WQM1

Action

 

 

MF

DO

TCE-WQM2a

Action

 

 

MF

DO

TCE-WQM2b

Action

 

 

MF

DO

TCE-WQM3A

Action

 

 

MF

DO(S&M)

TCE-WQM4

Action

 

30 Aug 2018

ME

DO

TCE-WQM1

Action

 

 

ME

DO

TCE-WQM2a

Action

 

 

ME

DO

TCE-WQM2b

Action

 

 

ME

DO

TCE-WQM3A

Action

 

 

ME

DO(S&M)

TCE-WQM4

Action

 

 

MF

DO

All Stations

Action

 

 

 

 

 

 

 

2

2 Aug 2018

MF

SS

TCE-WQM4

Action

The exceedances were 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 endorsed by ER and observed to be in good condition and functioning well.

Ÿ   The monitoring stations are located upstream from the Project works area and no action / limit level exceedances were recorded at other monitoring stations during the same tide of monitoring event.

 

 

 

9 Aug 2018

MF

SS

TCE-WQM2b

Action

 

21 Aug 2018

MF

SS

TCE-WQM4

Action

 

28 Aug 2018

ME

SS

TCE-WQM1

Action

 

28 Aug 2018

MF

SS

TCE-WQM2b

Action

 

30 Aug 2018

MF

SS

TCE-WQM2b

Action

 

 

 

 

 

 

 

 

 

 

 

 

 

3

11 Aug 2018

ME

SS

TCE-WQM3A

Action

The exceedances were 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 endorsed by ER and observed to be in good condition and functioning well.

Ÿ   No construction works were conducted near Tai Ho Wan, as such, the exceedances for station TCE-WQM3A were unlikely to be caused by the construction of the Project.

Ÿ   The monitoring was conducted during adverse weather.  Surface runoff from the nearby land mass (e.g. Tai Ho Wan, near airport channel) to the sea might be resulted due to heavy rain, thus increasing turbidity and suspended solids of the water.

 

 

 

MF

Turbidity

TCE-WQM1

Action

 

 

MF

Turbidity

TCE-WQM2b

Action

 

 

MF

SS

TCE-WQM2b

Action

 

 

MF

SS

TCE-WQM3A

Action

 

 

MF

Turbidity

TCE-WQM4

Action

 

 

 

 

 

 

 

4

16 Aug 2018

MF

SS

TCE-WQM1

Action

The exceedances were 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 endorsed by ER and observed to be in good condition and functioning well.

Ÿ   The monitoring station is located further away from the Project works area and no action / limit level exceedances were recorded at the monitoring stations located closer to the works area (e.g. TCE-WQM4) during the same monitoring event.

 

 

 

 

 

 

 

5

25 Aug 2018

MF

SS

TCE-WQM3A

Limit

The exceedances were 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 endorsed by ER and observed to be in good condition and functioning well.

Ÿ   Sand blanket laying was conducted at Tai Ho Wan, surrounded by a frame type silt curtain and an outer silt curtain.  Both silt curtains were in good condition to isolate sediment plume during sand blanket laying based on site investigation.  No action or limit level exceedances were recorded during the subsequent water quality monitoring conducted on 28 August 2018 when sand blanket laying was conducted.       

 

 

 

 

 

 

 

6

30 Aug 2018

ME

SS

TCE-WQM1

Action

The exceedances were 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 endorsed by ER and observed to be in good condition and functioning well.

Ÿ   Site observations confirmed no silt plumes or observable issues during marine works (pipe-piling and laying of geotextile and sand blanket laying).

 

 

ME

SS

TCE-WQM3A

Action

 

 

ME

SS

TCE-WQM4

Action

ME: Mid-ebb; MF: Mid-flood

DO(B): Bottom-depth DO; DO (S&M): Surface and middle-depth averaged DO

All Stations: TCE-WQM1, TCE-WQM2a, TCE-WQM2b, TCE-WQM3A and TCE-WQM4

Based on the preliminary investigation with the ER, the Contractor and the IEC, there is no evidence showing the exceedances were 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 ContractoríŽs working methods.  The ET will also conduct further investigation, including the review of water quality monitoring data from adjacent projects, to substantiate the exceedances were not considered as caused by the construction of the Project.

2.4                                   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 is scheduled to be conducted in September 2018 in accordance with the Updated EM&A Manual.

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, five (5) site inspections were carried out on 2, 9, 16, 24 and 30 August 2018.

Key observations during the site inspections are summarized in Table 2.12.

Table 2.12      Key Observations Identified during the Site Inspection in this Reporting Month

Inspection Date

Environmental Observations

Recommendations/ Remarks

2 August 2018

 

 

Works Area near Ying Tung Estate

Ÿ   General refuse at site office

Ÿ   Chemicals next to site office

 

Works Area near Ying Tung Estate

Ÿ   The contractor was reminded to regularly clear debris;

Ÿ   The contractor was reminded to properly store chemicals with drip tray.

 

9 August 2018

Vessel (Leader GD2)

Ÿ   Chemical without drip tray

Works Area near Ying Tung Estate

Ÿ   General refuse

Ÿ   Debris and chemicals without drip tray

 

Vessel (Leader GD2)

Ÿ   The contractor was reminded to provide drip tray for chemicals;

Works Area near Ying Tung Estate

Ÿ   The contractor was reminded to regularly clear debris and provide drip tray for chemicals

 

16 August 2018

Works Area near Ying Tung Estate

Ÿ   Chemical next to the generator without label

 

Works Area near Ying Tung Estate

Ÿ   The contractor was reminded to provide labels and drip trays for chemicals.

24 August 2018

 

Works Area near Ying Tung Estate

Ÿ   Nil

Works Area near CenturyLink

Ÿ   Debris

Vessel (Tat Fat No.11)

Ÿ   Stagnant water in the waste tires attached to the vessel

Ÿ   Stagnant water in the vessel

Ÿ   Chemicals without drip tray

 

Works Area near Ying Tung Estate

Ÿ   Nil

Works Area near CenturyLink

Ÿ   The contractor was reminded to clear debris regularly.

Vessel (Tat Fat No.11)

Ÿ   The contractor was reminded to clear such water;

Ÿ   The contractor was reminded to remove such chemical or provide drip tray.

 

30 August 2018

Works Area near Ying Tung Estate

Ÿ   Nil

Works Area near CenturyLink

Ÿ   Chemicals without drip tray

Ÿ   Diesel drum without drip tray

Vessel (Kong Wai 28)

Ÿ   Suspected chemical leakage

 

Works Area near Ying Tung Estate

Ÿ   Nil

Works Area near CenturyLink

Ÿ   The contractor was reminded to provide drip tray for chemicals

Vessel (Kong Wai 28)

Ÿ   The contractor was reminded to clear such leakage.

 

The Contractor has rectified all of the observations identified during environmental site inspections in the reporting period.

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 inspection on the engaged dump trucks and 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 imported fill, non-inert construction wastes and recyclable materials.  Reference has been made to the waste flow table prepared by the Contractor.  The quantities of different types of wastes are summarised in Table 2.13.

Table 2.13      Quantities of Different Waste Generated

Month/

Year

Inert C&D Materials (a) (m3)

Imported Fill (m3)

Inert Construction Waste Re-used

(m3)

Non-inert Construction Waste (b) (m3)

Recyclable Materials (c)  (kg)

Chemical Wastes (kg)

9 to 31 Jul 18

0

6,665 (d)

0

20.7

 

0

0

1 to 31 Aug 18

0

20,036

0

110.1

 

96,740 (e)

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, timber, felled trees and others.

(d) Updated figure is presented.

(e) Metals were recycled in the reporting period.

2.7                                   Implementation Status of Environmental Mitigation Measures

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

2.8                                   Summary of Exceedances of the Environmental Quality Performance Limit

Results for 1-hour TSP complied with the Action/ Limit levels in the reporting period.  Three (3) Action level exceedances for construction noise was recorded from three (3) environmental complaints related to noise nuisance.  No Project-related Action/ Limit level exceedances were recorded for water quality after preliminary investigation. 

Cumulative statistics on exceedances is provided in Annex H.

2.9                                   Summary of Complaints, Notification of Summons and Successful Prosecutions

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

Three (3) environmental complaints related to noise nuisances were received on 13, 21 and 24 August 2018 during the reporting period.  One of the complaints was related to construction activities on Sunday while the other two complaints were related to construction activities near to the adjacent residential areas.  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 Contractor, supplemented by the regular and ad-hoc noise monitoring conducted around the Project area, it is considered that the Contractor had complied with the relevant statutory requirements for the construction works, including the EP and the Construction Noise Permit.  Nevertheless, the Contractor was reminded to reduce construction noise levels, as far as practicable, especially when working next to the residential areas around the Project.  For example, walkie-talkie would be used instead of loud speaker for communication near residential areas.  The valid construction noise permits shall also be displayed at the relevant construction areas for public information.  The ET will continue to check the implementation status of the mitigation measures and conduct noise monitoring as per EM&A requirements.

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

 

3                                          Future Key Issues

3.1                                   Construction Programme for the Coming Month

As informed by the Contractor, the major works for the Project in September 2018 will be:

Land-based Works:

Ÿ   Construction of site office near Ying Tung Estate;

Ÿ   Demolition of site office near Century Link;

Ÿ   Removal of rock armour above +2.5mPD; and

Ÿ   Re-provision existing Pak Mong Pier.

Marine-based Works:

Ÿ   Installation of pipe piles and sheetpiles for ground investigation and wave protection measures;

Ÿ   Removal of rock armour below +2.5mPD;

Ÿ   Installation of silt curtain near Tai Ho Wan;

Ÿ   Laying of geotextile and sand blanket and ground improvement works for reclamation works and Deep Cement Mixing (DCM) trial embankment ;

Ÿ   Marine filling works;

Ÿ   Diversion of existing box culvert; and

Ÿ   Marine ground investigation works.

3.2                                   Key Issues for the Coming Month

Potential environmental impacts arising from the above upcoming construction activities in the next reporting period of September 2018 are mainly associated with dust emission from site office construction, 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, and waste management for C&D materials.  The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

3.3                                   Monitoring Schedule for the Coming Month

The tentative schedules for environmental monitoring in September 2018 are provided in Annex I.

 

4                                          Conclusion and Recommendation

This EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 to 31 August 2018 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) monitoring were carried out in the reporting period.  Results for air quality complied with the Action and Limit levels in the reporting period.  Three (3) Action level exceedances for construction noise was recorded from three (3) environmental complaints related to noise nuisances in the reporting period.  No Project-related Action/ Limit level exceedances were recorded for water quality after preliminary investigation. 

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

There was no notification of summons or successful prosecution recorded in the reporting period.  Three (3) environmental complaints related to noise nuisances were received on 13, 21 and 24 August 2018 during 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.

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 (2018).  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 (2018). Op cit.

(4)       ERM (2018). Op cit.