Contents
Abbreviations
Executive Summary
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 Preserved/Transplanted Plant Species of Conservation Importance Monitoring
2.5 Soft Shore Ecological Monitoring
2.6 EM&A Site Inspection
2.7 Waste Management Status
2.8 Implementation Status of Environmental Mitigation Measures
2.9 Summary of Exceedances of the Environmental Quality Performance Limit
2.10 Summary of Complaints, Notification of Summons and Successful Prosecutions
3.1 Construction Programme for the Coming Month
3.2 Monitoring Schedule for the Coming Month
4 Conclusion and Recommendation
Annexes
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 Preserved/Transplanted Plant Species of Conservation Importance Monitoring
Annex J 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 July 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 12 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, Waste Management Plan and Detailed Preservation and/or Translocation of Plant Species of Conservation Importance were conducted in the reporting period. Based on the audit results and the observation for the reporting period, environmental pollution control and mitigation measures for the Project were properly implemented.
Breaches of Action and Limit Levels for Air Quality
No exceedance of Action and Limit Levels was recorded for construction air quality monitoring in the reporting period.
Breaches of Action and Limit Levels for Noise
No exceedance of Action and Limit Levels was recorded for construction noise monitoring in the reporting period.
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.
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.
Two (2) 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 August 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 July 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 · Installation of PVD · Chain link fence erection and U-channel construction |
· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management |
· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management |
|
Marine-based Works |
|
|
|
· Laying of geotextile for seawall construction · Marine-based instruments monitoring works · Placing of sorted public fill · Seawall construction (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 · Site formation, road diversion and soil nailing works at Portion 3 · Watermain laying works at Portion 3 along Yu Tung Road · Sheet piling works and trench excavation, manhole construction and pipe laying for drainage works at Portion 5A · Construction works for mud pit for HDD works at Portion 3 · Preparation works for compensatory woodland planting at Portion 1 and 2 · Excavation works for box culvert at Portion 5B |
· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management · Tree protection |
· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management · Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works
|
|
Contract No. NL/2020/03 - Tung Chung New Town Extension – Major Infrastructure Works in Tung Chung East (Contract 3) |
||
|
Land-based Works |
|
|
|
· Installation of kingpost and instrumentations at Portion 104 · Excavation and ELS works at CUT no.1,2 & 3 · Construction works, furniture and skylight installation of PM office at WA9 · Installation of sheetpile, ELS works and drainage/ sewerage works at Portion 8 and 8A · ELS for pipe laying works for twin rising mains/ watermain laying at Man Tung Road · Setting up of TTA for trial pits for pipe jacking works at Ying Tung Road · Sewerage and watermain laying and connection works at Yi Tung Road |
· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management
|
· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management
|
|
Contract No. NL/2020/07 - Tung Chung New Town Extension – Tai Ho Interchange (Contract 7) |
||
|
Land-based Works |
||
|
· Construction of temporary haul road at 146-4 and 146-7, open cut excavation for rising main and watermain · Trench excavation at Portion 34 Phase 1 and Portions 32 (Sham Shui Kok Drive) · Trench excavation and pipe laying works at Portions 36-38 · Tree felling works / site clearance works at Portion 30, 31, 32, 33, 34 · Set up of temporary haul road at Portion 31 Slip Road A4 (RW-FR1) · Excavation works for Pak Mong Subway Extension Phase 1 · Pipe pile installation at Portion 32 (Access Road adjacent to MTRC Siu Ho Wan Depot) · Ground investigation works for Bridge C · 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 are planted |
|
Monitoring for Emergent Plant inside the future River Park
|
To be conducted under TCW. Refer to the EM&A Reports of TCW. |
|
Monitoring for Translocated Amphibians of Conservation Importance
|
To be conducted under TCW. Refer to the EM&A Reports of TCW. |
|
Monitoring for Preserved/Transplanted Plant Species of Conservation Importance
|
On-going, for transplanted plant species, transplantation works was carried out on 21 January 2022 and monitoring conducted once per week 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 |
|
|
|
|
Site Environmental Audit |
|
|
Regular Site Inspection
|
On-going |
|
Dolphin Watching Plan implementation measures
|
Under implementation by the Contractor of Contract 1 |
|
Works Vessel Travel Route Plan implementation measures
|
Under implementation by the Contractor of Contract 1 |
|
Silt Curtain Deployment Plan implementation measures |
Under implementation by the Contractor of Contract 1 |
|
|
|
|
Spill Response Plan implementation measures
|
Under implementation by the Contractor of Contract 1 |
|
Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance implementation measures |
Under implementation by the Contractor of Contract 2 |
|
|
|
|
Waste Management Plan implementation measures |
Under implementation by the Contractor of Contract 1 |
|
|
|
|
Complaint Hotline and Email Channel
|
Under implementation by the Contractor of Contract 1. The 24-hour complaint hotline/email channel under Contracts 2, 3, and 7 are subjected for approval |
|
|
|
|
Environmental Log Book |
On-going |
Taking into account the construction works, impact monitoring of air quality, noise, water quality and waste management were carried out in the reporting period. The monitoring schedule of air quality, noise and water quality monitoring are provided in Annex E2, Annex F2 and Annex G2, respectively.
The EM&A programme also involved environmental site inspections and related auditing conducted by the ET for checking the implementation of the required environmental mitigation measures recommended in the approved EIA Report and relevant EP submissions, including Complaint Management Plan, Dolphin Watching Plan, Works Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response Plan, Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance and Waste Management Plan.
To promote the environmental awareness and enhance the environmental performance of the contractors, environmental trainings and regular environmental management meetings were conducted during the reporting period, which are summarized as below:
Ÿ Four (4) environmental management committee meetings were held with the Contractors of Contract 1 and 7 and ER, ET, IEC and CEDD on 21 and 12 July 2022, respectively, and Contractors of Contract 2 and 3 on 20 July 2022;
Ÿ Environmental toolbox trainings on nuisance to residence (light pollution/sudden noise/dusty work), site hygiene, wastewater handling, discharge, treatment facilities, works vessel travel route plan and use of spill kits on 6, 8, 15, 20 and 27 July 2022 were conducted for Contract 1;
Ÿ Environmental toolbox trainings on construction dust and suppression and construction noise and suppression on 7, 12, 18 and 21 July 2022 were conducted for Contract 2;
Ÿ Environmental toolbox trainings on shotcreting, percussive piling and bored piling on 7, 12 and 14 July 2022 were conducted for Contract 3;
Ÿ Environmental toolbox trainings on maintenance of site access, site boundary and haul road and protection and preservation of trees on 13 and 20 July 2022 were conducted for Contract 7.
1.6
Status of Statutory Environmental Compliance with the Environmental
Permit
The status of statutory environmental compliance with the EP conditions under the EIAO, submission status under the EP and implementation status of mitigation measures are presented in Annex C.
1.7
Status of Other Statutory
Environmental Requirements
The environmental licenses and permits, including environmental permit, waste discharge license, registration as chemical waste producer and construction noise permit, which were valid in the reporting period are presented in Annex D. No non-compliance with environmental statutory requirements was recorded.
2
EM&A Results for Tung Chung East
The EM&A programme for the Project required environmental monitoring for air quality, noise, water quality and marine ecology as well as environmental site inspections for air quality, noise, water quality, waste management, marine ecology and landscape and visual impacts. The EM&A requirements and related findings for each component are summarized in the following sections.
2.1
Air Quality
2.1.1
Monitoring Requirements and Equipment
According to the Updated EM&A Manual of the Project, impact air quality monitoring in terms of 1-hour Total Suspended Particulate (TSP) was conducted three (3) times every six (6) days when the highest dust impact was expected. The Action and Limit Levels of the air quality monitoring is provided in Table 2.1 below.
Table 2.1 Action and Limit Levels for 1-hour TSP
|
Location |
Action Level, µg/m3 |
Limit Level, µg/m3 |
|
Monitoring station for Tung Chung East |
279 |
500 |
Portable direct reading dust meters were used to measure 1-hour TSP levels in undertaking the air quality monitoring for the Project. The proposed use of portable direct reading dust meters was submitted to IEC and obtained agreement from the IEC as stated in Section 5.5 of the Updated EM&A Manual. With the use of direct reading dust meter, it can allow prompt and direct results for the EM&A reporting and the implementation of the event and action plan. The portable direct reading dust meter would be calibrated every year against High Volume Sampler (HVS) to check the validity and accuracy of the results measured by direct reading method.
The monitoring location and equipment used in the impact air quality monitoring programme are summarized in Table 2.2 and illustrated in Figure 2.1. Copies of the calibration certificates for the equipment are presented in Annex E1, which showed that the portable direct reading dust meter is capable of providing comparable results with that provided by a HVS.
Table 2.2 Air Quality Monitoring Details
|
Monitoring Station |
Location |
Parameter |
Frequency and Duration |
Monitoring Dates |
Equipment |
|
DM-1 |
Tung Chung Area 56 – Ying Tung Estate |
1-hour TSP |
Three times per six days during the construction period of the Project |
4, 9, 15, 21 and 27 July 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). |
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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 |
17 |
10-24 |
279 |
500 |
Major dust sources in the reporting period included haul road traffic, unloading of sand/fill material and filling works under the Project.
No exceedance of Action and Limit Levels was recorded for construction air quality monitoring in the reporting period. No action was thus required to be undertaken in accordance with the Event and Action Plan presented in Annex E4.
2.2
Noise Monitoring
2.2.1
Monitoring Requirements and Equipment
According to the Updated EM&A Manual of the Project, impact noise monitoring was conducted once per week during the construction phase of the Project. The Action and Limit Level for construction noise of the Project is provided in Table 2.4 below.
Table 2.4 Action and Limit Levels for Construction Noise
|
Time Period |
Action Level |
Limit Level |
|
0700 - 1900 hours on normal weekdays |
When one documented complaint is received |
75 dB(A) * |
Notes:
Limit level is exceeded when Leq ≥ 75 dB(A). If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed.
* Reduce to 70 dB (A) for schools and 65 dB (A) during school examination periods.
Noise monitoring was performed using sound level meter at the designated monitoring stations NMS-CA-1A ([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 |
4, 9, 15, 21 and 27 July 2022 |
Sound Level Meter: Rion NL-52 (S/N: 00710259 and 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. |
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2.2.2
Monitoring Schedule for the Reporting Month
The schedule for noise monitoring during the reporting period is provided in Annex F2.
2.2.3
Results and Observations
Results for noise monitoring are summarized in Table 2.6. The monitoring data and the graphical presentation are provided in Annex F3.
Table 2.6 Summary of Construction Noise Monitoring Results in the Reporting Period
|
Monitoring Station |
Average, dB(A), Leq (30mins) |
Range, dB(A), Leq (30mins) |
Limit Level, dB(A), Leq (30mins) |
|
NMS-CA-1A |
66.8 |
66.3-67.8 |
75 |
|
NMS-CA-4 |
65.2 |
63.9-66.5 |
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 Action and Limit Level exceedance was recorded for construction noise monitoring in the reporting period.
2.3
Water Quality Monitoring
2.3.1
Monitoring Requirements and Equipment
Impact water quality monitoring was carried out to ensure that any deterioration of water quality was detected, and that timely action was taken to rectify the situation. Impact water quality monitoring was undertaken three days per week since the commencement of marine works during the reporting period in accordance with the Updated EM&A Manual. Each impact water quality monitoring was scheduled such that the interval between two impact water quality monitoring was more than 36 hours to record representative water quality data throughout the week during the marine works.
Two (2) replicate in-situ measurements and samples were collected at each monitored water depth of each designated monitoring stations. Dissolved Oxygen (DO), pH value, salinity, temperature and turbidity were measured in-situ whereas the level of suspended solids (SS) were determined by ALS Technichem (HK) Pty Ltd which is a HOKLAS accredited laboratory.
The Action and Limit Levels of the water quality monitoring are provided in Table 2.7.
Table 2.7 Action and Limit Levels for Water Quality
|
Parameters |
Action Level |
Limit Level |
|
DO in mg/L (Surface, Middle & Bottom) |
Surface and Middle 5.9 mg/L [1]
Bottom 5.6 mg/L |
Surface and Middle 4 mg/L [1]
Bottom 2 mg/L
|
|
SS in mg/L (Depth-averaged) |
13.5 mg/L
|
23.5 mg/L |
|
Turbidity in NTU (Depth-averaged) |
17.1 NTU |
23.5 NTU |
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
|
4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27 and 29 July 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 1 July 2022 was cancelled due to issue of Strong Wind Signal No.3 by the Hong Kong Observatory. |
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Table 2.9 summarizes the equipment used in the impact water quality monitoring works. Copies of the calibration certificates are attached in Annex G1.
Table 2.9 Water Quality Monitoring Equipment
|
Equipment |
Model |
|
Water Sampler |
Kahlsico Water Samplers |
|
Multi-parameter Water Quality System (measurement of DO, Temperature, Turbidity, Salinity and pH) |
YSI ProDSS (S/N: 16H104233 and 17E100747) |
|
|
|
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 12 monitoring events for impact water quality monitoring were conducted at all designated monitoring stations during the reporting period. Monitoring event on 1 July 2022 was 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 |
|
|
|
6 July 2022 |
ME |
DO (B) |
TCE-WQM2b |
Action |
(b) (c) |
|
|
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
8 July 2022 |
ME |
DO (S&M) |
TCE-WQM1 |
Action |
(b) (c) |
|
|
|
ME |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM4 |
Action |
|
|||
|
11 July 2022
|
ME |
DO (B) |
TCE-WQM1 |
Action |
(b) (c) |
|
|
|
ME |
DO (B) |
TCE-WQM3A |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM4 |
Action |
|
|||
|
13 July 2022 |
ME |
DO (B) |
TCE-WQM1 |
Action |
(b) (c) |
|
|
|
MF |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
15 July 2022 |
ME |
DO (S&M) |
TCE-WQM1 |
Action |
(b) (c) |
|
|
|
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-WQM1 |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2a |
Action |
(d) |
|
||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
(b) (c) |
|
||
|
ME |
DO (B) |
TCE-WQM3A |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM4 |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM3A |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM4 |
Action |
|
|||
|
18 July 2022 |
ME |
DO (S&M) |
TCE-WQM2a |
Action |
(b) (c) |
|
|
|
ME |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
20 July 2022 |
ME |
DO (S&M) |
TCE-WQM1 |
Action |
(b) (c) |
|
|
|
ME |
DO (S&M) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
ME |
DO (S&M) |
TCE-WQM3A |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM3A |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
22 July 2022 |
ME |
DO (S&M) |
TCE-WQM1 |
Action |
(d) |
|
|
|
ME |
DO (B) |
TCE-WQM1 |
Action |
(c) (d) |
|
||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
(b) (c) |
|
||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
25 July 2022 |
ME |
DO (B) |
TCE-WQM1 |
Action |
(a) (d) |
|
|
|
ME |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
27 July 2022 |
ME |
DO (S&M) |
TCE-WQM1 |
Action |
(d) |
|
|
|
ME |
DO (B) |
TCE-WQM1 |
Action |
(b) (c) |
|
||
|
ME |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
29 July 2022 |
ME |
DO (S&M) |
TCE-WQM1 |
Action |
(b) (c) |
|
|
|
ME |
DO (S&M) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2a |
Action |
|
|||
|
ME |
DO (B) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM2b |
Action |
|
|||
|
MF |
DO (S&M) |
TCE-WQM3A |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM1 |
Action |
|
|||
|
MF |
DO (B) |
TCE-WQM3A |
Action |
|
|||
|
Remarks: |
|||||||
|
(a) |
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. |
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|
(b) |
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). |
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|
(c) |
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. |
||||||
|
(d) |
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. |
||||||
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
Preserved/Transplanted Plant Species of Conservation Importance
Monitoring
Plant species of conservation importance, including three individuals of Aquilaria sinensis and 33 individuals of Gmelina chinensis, were identified within works areas for Contract 2. All individuals of Aquilaria sinensis and 31 individuals of Gmelina chinensis were recommended being preserved in-situ while two individuals of Gmelina chinensis (RT-07 and RT-08) were recommended being transplanted to the receptor site in accordance with the Detailed Preservation and/or Translocation Plan for Plant Species of Conservation Importance approved under Condition 2.21 of EP-519/2016. Initial tree survey was conducted in September 2021 under Contract No. NL/2020/02 before the commencement of construction works. According to the initial tree survey conducted, the in-situ preserved plant species of conservation importance of which one individual of Aquilaria sinensis and six individuals of Gmelina chinensis were found missing.
2.4.1
Preserved Plant Species of Conservation Importance
Monthly monitoring of the in-situ preserved plant species of conservation importance by the Qualified Personnel (QP) appointed under Contract 2 was implemented in the reporting period. Health condition was considered fair for the majority of the in-situ preserved plant species of conservation importance, of which two individuals of Gmelina chinensis could not be monitored as a result of unsafe access to the locations, as recorded during the monitoring carried out on 19 July 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 H.
The ET will continue to monitor the implementation of monitoring of in-situ preserved plant species of conservation importance.
2.4.2
Transplanted Plant Species of Conservation Importance
Site visit to the receptor site for the transplanted plant species of conservation importance was carried out on 20 January 2022 prior to the commencement of transplantation works for the transplanted plant species of conservation importance on 21 January 2022.
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 the Project Manager, ET and IEC and subject to satisfaction of the Project Manager.
2.5
Soft Shore Ecological Monitoring
No impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan was scheduled during the reporting period. The impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho Wan was scheduled to be conducted in September 2022 in accordance with the Updated EM&A Manual.
2.6
EM&A Site Inspection
Site inspections were carried out on a weekly basis with the Contractor and ER to monitor the implementation of proper environmental pollution control and mitigation measures for air quality, noise, water quality, waste management, marine ecology, landscape and visual impacts and preservation and/or transplantation of plant species of conservation importance under the Project. In the reporting period, four (4) site inspections were carried out on 7, 14, 21 and 28 July 2022 for Contract 1, four (4) site inspections were carried out on 6, 13, 20 and 27 July 2022 for Contract 2, four (4) site inspections were carried out on 8, 15, 20 and 28 July 2022 for Contract 3 and four (4) site inspections were carried out on 5, 12, 20 and 26 July 2022 for Contract 7.
Key observations during the site inspections are summarized in Table 2.11.
Table 2.11 Key Observations Identified during the Site Inspection in this Reporting Month
|
Contract No. |
Inspection Date |
Environmental Observations |
Recommendations/ Remarks |
|
Contract 1 |
7 July 2022
|
Tung Chung Reclamation Area (Near Marina and Opening at Marina) Ÿ Defects were observed in the silt curtain and overlapping of the silt curtain opening was missing. |
Tung Chung Reclamation Area (Near Marina and Opening at Marina) Ÿ The Contractor was urged to carry out maintenance and extend the silt curtain opening to >150m in accordance with the Silt Curtain Deployment Plan. |
|
14 July 2022 |
VS1 and PVD Area Ÿ Dust was observed generated from dry haul road. |
VS1 and PVD Area · The Contractor was urged to carry out dust mitigation measures, such as watering. |
|
|
21 July 2022 |
Tung Chung Reclamation Area (Near VS1 and VS2) Ÿ Gaps were observed between silt curtains. Silt curtains near VS2 were observed worn out and the alignment of the silt curtain was deformed. Main Haul Road Ÿ Dust was observed
|
Tung Chung Reclamation Area (Near VS1 and VS2) Ÿ The Contractor was urged to carry out maintenance.
Main Haul Road Ÿ The Contractor was urged to carry out maintenance. |
|
|
28 July 2022 |
Tung Chung Reclamation Area (Near VS1) Ÿ Silt curtains near VS1 were observed worn out and the alignment of the silt curtain was deformed. VS1 and PVD Area Ÿ Chemicals were observed not placing on drip tray. |
Tung Chung Reclamation Area (Near VS1) Ÿ The Contractor was urged to carry out maintenance.
VS1 and PVD Area Ÿ The Contractor was reminded to place chemicals on drip tray. |
|
|
Contract 2 |
6 July 2022 |
TTA, Portion 3, Portion 6 • No deficiency was observed. |
Ÿ Nil
|
|
13 July 2022 |
Portion 3 Ÿ Drainage blockage was observed.
|
Portion 3 Ÿ The Contractor was reminded to provide measures such as cleaning up the drainage regularly. |
|
|
20 July 2022 |
Portion 3 Ÿ Construction materials are placed nearby retained tree.
Ÿ Mud trail was observed on public road outside site entrance.
Portion 6 Ÿ Dry haul road was observed.
Ÿ Oil stains were observed on ground. |
Portion 3 Ÿ The Contractor was reminded to remove the construction materials away from retained trees. Ÿ The Contractor was reminded to provide mitigation measures and keep the public road clean. Portion 6 Ÿ The Contractor was reminded to carry out dust mitigation measures such as watering. Ÿ The Contractor was urged to remove the oil stains. |
|
|
27 July 2022 |
TTA Ÿ NRMM label was not observed on excavator.
Ÿ Oil stains were observed on ground. |
Portion 3 Ÿ The Contractor was urged to provide valid NRMM label and check all machinery to ensure valid NRMM label is displayed. Ÿ The Contractor was urged to remove the oil stains. |
|
|
Contract 3 |
8 July 2022
|
CUT 1, WA6, WA9 Ÿ No deficiency was observed. |
Ÿ Nil
|
|
15 July 2022 |
CUT Area Ÿ Accumulated general refuse and chemical waste were observed on ground.
Ÿ Retained water was observed in drip tray Ÿ Dump trucks were not properly covered.
|
CUT Area Ÿ The Contractor was reminded to provide mitigation measures, such as clearing accumulated refuse regularly, providing more rubbish bins and drip trays. Ÿ The Contractor was reminded to remove the water in drip tray. Ÿ The Contractor was reminded to ensure dump trucks are properly covered. |
|
|
20 July 2022 |
CUT Area and Portion 8 Ÿ Dust was observed generated from dry haul road. |
CUT Area and Portion 8 Ÿ The Contractor was urged to carry out dust mitigation measures, such as watering. |
|
|
28 July 2022 |
CUT Area Ÿ Dust was observed generated from haul road. |
CUT Area Ÿ The Contractor was urged to carry out dust mitigation measures, such as watering. |
|
|
Contract 7 |
5 July 2022 |
WA4, Near Pak Mong Subway, Portion 32, 37 · No deficiency was observed. |
· Nil
|
|
12 July 2022 |
Portion 32 · Site runoff was observed.
|
Portion 32 · The Contractor was reminded to provide mitigation measures to site runoff. |
|
|
20 July 2022 |
Portion 34 · Construction waste was observed placing nearby retained trees and no tree protection was observed. · Appropriate Non-road Mobile Machinery (NRMM) label was not observed.
|
Portion 34 · The Contractor was reminded to remove the construction waste and provide tree protection. · The Contractor was reminded to affix appropriate NRMM label in accordance with the Air Pollution Control (Non-road Mobile Machinery) (Emission) Regulation. |
|
|
26 July 2022 |
Area E near Pak Mong, Portion 32, 37 · No deficiency was observed. |
· 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.
2.7
Waste Management Status
The Contractors of Contract 1, 2, 3 and 7 have registered as chemical waste producer. Sufficient numbers of receptacles were available for general refuse collection and sorting.
All dump trucks engaged on site was equipped with RTTM system during the reporting period. The Surveillance Team of the ET conducted regular site inspection on the dump trucks and their track records. No illegal dumping and landfilling of C&D materials was found during the reporting period.
Wastes generated during this reporting period include mainly non-inert construction wastes. Reference has been made to the waste flow tables prepared by the Contractors. The quantities of different types of wastes and imported fill materials are summarised in Table 2.12.
Table 2.12 Quantities of Different Waste Generated and Imported Fill Materials
|
Contract No. |
Month/ Year |
Inert C&D Materials (a) (m3) |
Imported Fill (b) (sand) (m3) |
Imported Fill (c) (public fill) (m3) |
Inert Construction Waste Re-used (d) (m3) |
Non-inert Construction Waste (e) (m3) |
Recyclable Materials (f) (kg) |
Chemical Wastes (kg) |
|
|
|
|||||||
|
TCNTE (East) |
1 to 31 May 22 |
85.1 |
0.0 |
54,452.3 |
30,509.3 |
92.6 |
361.0 |
0.0 |
|
1 to 30 Jun 22 |
0.0 |
0.0 |
46,974.0 |
21,705.0 |
198.8 |
0.0 |
1,600.0 |
|
|
|
1 to 31 Jul 22 |
0.0 |
0.0 |
46,767.0 |
41,967.0 |
212.0 |
6,454.0 |
0.0 |
|
Notes: |
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|
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|
(a) Inert construction wastes include hard rock and large broken concrete, and materials disposed as public fill. |
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|
(b) Imported materials include of sand fill from any source outside of TCNTE. |
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|
(c) Imported sorted public fill include all G200, G400 and glass gullet (local recycling materials) from any source outside of TCNTE. |
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|
(d) Reuse of inert construction waste generated under the TCNTE contracts. (e) Non-inert construction wastes include general refuse disposed at landfill. |
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|
(f) Recyclable materials include metals, paper, cardboard, plastics and others. |
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2.8
Implementation Status of Environmental
Mitigation Measures
A summary of the Environmental Mitigation Implementation Schedule is presented in Annex B. The necessary mitigation measures were implemented properly for the Project.
2.9
Summary of Exceedances of the Environmental Quality Performance
Limit
The monitoring results for air quality monitoring (1-hour TSP) and construction noise monitoring complied with the Action/ Limit levels in the reporting period.
Action level exceedances were recorded for water quality impact monitoring in the reporting period. The investigations on the action level exceedances were conducted and the results were summarized in Section 2.3.3. Cumulative statistics on exceedances is provided in Annex I.
2.10
Summary of Complaints, Notification of Summons and Successful
Prosecutions
There was no notification of summons or prosecution recorded in the reporting period.
Two (2) 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. Environmental complaints in the reporting period are summarized below.
|
|
Complaint(s) |
Investigation/Follow up action(s) |
|
1 |
Environmental complaint related to Contract 3 regarding muddy water and debris was referred by EPD on 8 July 2022. |
Based on ET’s inspection, wheel washing facilities were provided before vehicles exit from the entrance/exit located near Ying Hei Road. In order to prevent mud/debris from falling onto the public roads, Contractor have provided additional workers at wheel washing facilities, patrol team for inspecting the road condition and U-Channel at the site exit to prevent any runoff from site exit onto the public road/gullies. |
|
2 |
Environmental complaint related to Contract 3 regarding dust was referred by EPD on 21 July 2022. |
Based on ET’s investigation, Contractor have implemented mitigation measures, including water trucks, sprinklers and manual watering, to ensure adequate watering would be provided in order to prevent dust emission. |
Statistics on complaints, notifications of summons, successful prosecutions are summarised in Annex I.
3
Future Key Issues
3.1
Construction Programme for the Coming Month
Works to be undertaken in the next monitoring period of August 2022 are summarized in Table 3.1 below, together with the key issues and the key mitigation measures:
Table 3.1 Major Activities for the Next Reporting Period
|
Activities |
Key Issues |
Key Mitigation Measures |
|
Contract No. NL/2017/03 - Tung Chung New Town Extension – Reclamation and Advance Works (Contract 1) |
||
|
Land-based Works |
|
|
|
· Ground investigation works · Land DCM works · Jet grouting works · Placing of sorted public fill · Box culvert construction · Installation of PVD
|
· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management |
· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management |
|
Marine-based Works |
|
|
|
· Laying of geotextile for seawall construction · Marine-based instruments monitoring works · Placing of sorted public fill · Seawall construction (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) · Excavation and ELS erection at Portion 6 · Site formation, road diversion and soil nailing works at Portion 3 · Watermain laying works at Portion 3 along Yu Tung Road · Preparation works for pipe jacking at Portion 3 · Sheet piling works and trench excavation, manhole construction and pipe laying for drainage works at Portion 5A · Construction works for mud pit, plant setup and drilling works for HDD works at Portion 3 · Compensatory woodland planting at Portion 1 and 2 · Excavation works and fabrication of precast unit for box culvert at Portion 5B |
· Dust emission · Handling and storage of C&D materials generated from construction activities · Noise from plant operation · Emission of dark smoke from PMEs · Efficiency of wastewater and drainage management · Tree protection |
· Good site practices · Regular water spraying on stockpiles, unpaved haul road and land filling area · Provide tarpaulin sheets coverage on stockpiles · Sorting and reuse of C&D materials as far as practicable · Use of QPME and noise barrier/acoustic mat · Regular maintenance of PMEs · Implementation of wastewater and drainage management · Retain and protect all existing trees and vegetation within the study area which are not directly affected by the works |
|
Contract No. NL/2020/03 - Tung Chung New Town Extension – Major Infrastructure Works in Tung Chung East (Contract 3) |
||
|
Land-based Works |
|
|
|
· Installation of kingpost and instrumentations at Portion 104 · Excavation and ELS works at CUT no.1,2 & 3 · Construction works and furniture installation of PM office at WA9 · Installation of sheetpile, ELS works and drainage/ sewerage works at Portion 8 and 8A · pipe laying works for twin rising mains/ watermain laying at Man Tung Road · Trial pits for pipe jacking works at Ying Tung Road · Drainage pipe laying and connection works at Yi Tung Road · Preparation 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 · 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 for rising main and watermain at Portion 146-5 · Trench excavation at Portion 34 Phase 1 · Trench excavation and pipe laying works at Portions 32 (Sham Shui Kok Drive), and Portions 36-38 · Tree felling works / site clearance works at Portion 30, 31, 32, 33, 34 · Set up of temporary haul road and working platform at Portion 31 Slip Road A3 (RW-R7) & A4 (RW-FR1) · Demolition for Pak Mong Subway Extension Phase 1 · Pipe pile installation at Portion 32 (Access Road adjacent to MTRC Siu Ho Wan Depot) · Ground investigation works for Bridge C · 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 August 2022 are provided in Annex J.
4
Conclusion and Recommendation
This EM&A Report presents the findings of the EM&A activities undertaken for the TCE Project during the period from 1 to 31 July 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 monitoring of the in-situ preserved plant species of conservation importance were carried out in the reporting period.
The monitoring results for air quality monitoring (1-hour TSP) and construction noise monitoring complied with the Action/ Limit levels in the reporting period.
No Project-related Action/ Limit level exceedances were recorded for water quality after investigation.
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 of the transplanted plant species of conservation importance prepared by the QP was submitted to the Project Manager, ET and IEC and subject to satisfaction of the Project Manager.
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. Two (2) 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 1 July 2022 was 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