Expansion of Hong Kong
International Airport into a
Three-Runway System
Construction Phase Monthly EM&A
Report No. 91
(For July 2023)
August 2023
Contents
1.4 Summary
of Construction Works
1.5 Summary
of EM&A Programme Requirements
2.3.2
Maintenance and Calibration
2.4 Summary
of Monitoring Results
3.3.2
Maintenance and Calibration
3.4 Summary
of Monitoring Results
4.3.2
Maintenance and Calibration
4.3.3
Laboratory Measurement / Analysis
4.4 Summary
of Monitoring Results
5.3 Marine
Sediment Management
6 Chinese
White Dolphin Monitoring
6.2 CWD
Monitoring Transects and Stations
6.2.1
Small Vessel Line-transect Survey
6.2.2
Land-based Theodolite Tracking Survey
6.3 CWD
Monitoring Methodology
6.3.1
Small Vessel Line-transect Survey
6.3.3
Land-based Theodolite Tracking Survey
6.4 Monitoring
Results and Observations
6.4.1
Small Vessel Line-transect Survey
6.4.3
Land-based Theodolite Tracking Survey
6.5 Progress Update on Passive Acoustic
Monitoring
6.6 Site
Audit for CWD-related Mitigation Measures
6.7 Timing
of reporting CWD Monitoring Results
7 Environmental
Site Inspection and Audit
7.1 Environmental
Site Inspection
7.2 Landscape
and Visual Mitigation Measures
7.3 Land
Contamination Assessment
7.4 Audit
of SkyPier High Speed Ferries
7.5 Audit
of Construction and Associated Vessels
7.6 Implementation
of Dolphin Exclusion Zone
7.7 Status
of Submissions under Environmental Permits
7.8 Compliance
with Other Statutory Environmental Requirements
7.9 Analysis
and Interpretation of Complaints, Notification of Summons and Status of
Prosecutions
7.9.2
Notifications of Summons or Status of Prosecution
8 Future
Key Issues and Other EIA & EM&A Issues
8.1 Construction
Programme for the Coming Reporting Period
8.2 Key
Environmental Issues for the Coming Reporting Period
8.3 Monitoring
Schedule for the Coming Reporting Period
8.4 Review
of the Key Assumptions Adopted in the EIA Report
9 Conclusion
and Recommendation
Table
1.1: Contact Information of Key Personnel
Table
1.2: Summary of Status of All Environmental Aspects under the Updated EM&A
Manual
Table
2.1: Locations of Impact Air Quality Monitoring Stations
Table
2.2: Action and Limit Levels of Air Quality Monitoring
Table
2.3: Air Quality Monitoring Equipment
Table
2.4: Summary of Air Quality Monitoring Results
Table
3.1: Locations of Impact Noise Monitoring Stations
Table
3.2: Action and Limit Levels for Noise Monitoring
Table
3.3: Noise Monitoring Equipment
Table
3.4: Summary of Construction Noise Monitoring Results
Table
4.1: Monitoring Locations of Impact Water Quality Monitoring
Table
4.2: Action and Limit Levels for General Water Quality Monitoring
Table
4.4: Water Quality Monitoring Equipment
Table
4.5: Other Monitoring Equipment
Table
4.6: Laboratory Measurement/ Analysis of SS
Table
4.7: Summary of DO (Surface and Middle) Compliance Status (Mid-Ebb Tide)
Table
4.8: Summary of DO (Bottom) Compliance Status (Mid-Ebb Tide)
Table
4.9: Summary of DO (Bottom) Compliance Status (Mid-Flood Tide)
Table
4.10: Summary of Findings from Investigation of DO Monitoring Results
Table
5.1: Action and Limit Levels for Construction Waste
Table
5.2: Construction Waste Statistics
Table
6.1: Derived Values of Action and Limit Levels for Chinese White Dolphin
Monitoring
Table
6.2: Coordinates of Transect Lines in NEL, NWL, AW, WL and SWL Survey Areas
Table
6.3: Land-based Theodolite Survey Station Details
Table 6.4: Comparison of CWD Encounter Rates of the Whole Survey Area with Action
Levels
Table 6.5: Summary of Photo Identification
Table 6.6: Summary of Survey Effort and CWD Group of Land-based Theodolite Tracking
Table
7.1: Landscape and Visual – Construction Phase Audit Summary
Table
7.2: Examples of Landscape and Visual Mitigation Measures in the Reporting
Periods
Table
7.3: Monitoring Programme for Landscape and Visual
Table
7.4: Event and Action Plan for Landscape and Visual
Table
7.6: Summary of the Transplanted Trees Updated in the Reporting Period
Table
7.7: Photos of the Existing Transplanted Trees Inspection in this Reporting
Month
Table
7.8: Summary of Key Audit Findings against the SkyPier
Plan
Table
7.9: Status of Submissions under Environmental Permit
Appendices
Abbreviations
|
3RS |
Three-Runway System |
|
AAHK |
Airport Authority Hong Kong |
|
AECOM |
AECOM Asia Company Limited |
|
AFCD |
Agriculture, Fisheries and Conservation Department |
|
AIS |
Automatic Information System |
|
ANI |
Encounter Rate of Number of Dolphins |
|
APM |
Automated People Mover |
|
AW |
Airport West |
|
BHS |
Baggage Handling System |
|
C&D |
Construction and Demolition |
|
CAP |
Contamination Assessment Plan |
|
CAR |
Contamination Assessment Report |
|
CTCC |
Construction Traffic Control Centre |
|
CWD |
Chinese White Dolphin |
|
DCM |
Deep Cement Mixing |
|
DEZ |
Dolphin Exclusion Zone |
|
DO |
Dissolved Oxygen |
|
EIA |
Environmental Impact Assessment |
|
EM&A |
Environmental Monitoring & Audit |
|
EP |
Environmental Permit |
|
EPD |
Environmental Protection Department |
|
EPSS |
Emergency Power Supply Systems |
|
ET |
Environmental Team |
|
FCZ |
Fish Culture Zone |
|
HKBCF |
Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities |
|
HKIA |
Hong Kong International Airport |
|
HOKLAS |
Hong Kong Laboratory Accreditation Scheme |
|
HSF |
High Speed Ferry |
|
HVS |
High Volume Sampler |
|
IEC |
Independent Environmental Checker |
|
LKC |
Lung Kwu Chau |
|
MMHK |
Mott MacDonald Hong Kong Limited |
|
MMWP |
Marine Mammal Watching Plan |
|
MSS |
Maritime Surveillance System |
|
MTRMP-CAV |
Marine Travel Routes and Management Plan for Construction and Associated Vessel |
|
NEL |
Northeast Lantau |
|
NWL |
Northwest Lantau |
|
PAM |
Passive Acoustic Monitoring |
|
PM |
Project Manager |
|
SC |
Sha Chau |
|
SCZ |
Speed Control Zone |
|
SCLKCMP |
Sha Chau and Lung Kwu Chau Marine Park |
|
SS |
Suspended Solids |
|
SSSI |
Site of Special Scientific Interest |
|
STG |
Encounter Rate of Number of Dolphin Sightings |
|
SWL |
Southwest Lantau |
|
T2 |
Terminal 2 |
|
The Project |
The Expansion of Hong Kong International Airport into a Three-Runway System |
|
The SkyPier Plan |
Marine Travel Routes and Management Plan for High Speed Ferries of SkyPier |
|
The Manual |
The Updated EM&A Manual |
|
TSP |
Total Suspended Particulates |
|
WL |
West Lantau |
|
WMP |
Waste Management Plan |
The “Expansion of Hong Kong
International Airport into a Three-Runway System” (the Project) serves to meet
the future air traffic demands at Hong Kong International Airport (HKIA). On 7
November 2014, the Environmental Impact Assessment (EIA) Report (Register No.:
AEIAR-185/2014) for the Project was approved and an Environmental Permit (EP)
(Permit No.: EP-489/2014) was issued for the construction and operation of the
Project.
Airport Authority Hong Kong
(AAHK) commissioned Mott MacDonald Hong Kong Limited (MMHK) to undertake the
role of Environmental Team (ET) for carrying out the Environmental Monitoring
& Audit (EM&A) works during the construction phase of the Project in
accordance with the Updated EM&A Manual (the Manual).
This is the 91st
Construction Phase Monthly EM&A Report for the Project which summarises the
monitoring results and audit findings of the EM&A programme during the
reporting period from 1 to 31 July 2023.
Key Activities in the Reporting Period
The key
activities of the Project carried out in the reporting period are located in
reclamation areas and existing airport island respectively. Works in the
reclamation areas included seawall construction, land improvement works and
filling together with taxiways, concourse, tunnel work for Automated People
Mover (APM) and Baggage Handling System (BHS) and associated works. Land-based
works on existing airport island involved mainly airfield works, Terminal 2
expansion works, modification and tunnel work for APM and BHS, and preparation
work for utilities, with activities include road and drainage works, cable
ducting, demolition, piling, and excavation works.
EM&A Activities
Conducted in the Reporting Period
The
monthly EM&A programme was undertaken in accordance with the Manual of the
Project. Summary of the monitoring activities during this reporting period is
presented as below:
|
Monitoring Activities |
Number of Sessions |
|
1-hour Total Suspended Particulates (TSP) air quality monitoring |
30 |
|
Noise monitoring |
16 |
|
Water quality monitoring |
13 |
|
Vessel line-transect surveys for Chinese White Dolphin (CWD) monitoring |
2 |
|
Land-based theodolite tracking survey effort for CWD monitoring |
2 |
Environmental auditing works,
including weekly site inspections of construction works conducted by the ET and
bi-weekly site inspections conducted by the Independent Environmental Checker
(IEC), audit of SkyPier High Speed Ferries (HSF),
audit of construction and associated vessels, and audit of implementation of
Dolphin Exclusion Zone (DEZ) Plan, were conducted in the reporting period.
Based on the information
including ET’s observations, records of Maritime Surveillance System (MSS), and
contractors’ site records, it is noted that environmental pollution control and
mitigation measures were properly implemented and construction activities of
the Project in the reporting period did not introduce adverse impacts to the
sensitive receivers.
Snapshots of EM&A
Activities in the Reporting Period
|
|
|
|
|
Land-based Theodolite Tracking Survey for CWD conducted by ET |
Noise Impact Monitoring conducted by ET in Tin Sum Village House |
Checking of Wheel Washing Facilities by Contractor |
Results of Impact
Monitoring
The monitoring works for
construction dust, construction noise, water quality, construction waste, landscape & visual, and CWD were conducted during
the reporting period in accordance with the Manual.
Monitoring results of
construction dust, construction noise, construction
waste and CWD did not trigger the corresponding Action and Limit Levels in the
reporting period.
The water quality monitoring
results for all parameters, except dissolved oxygen (DO), obtained during the
reporting period were within the corresponding Action and Limit Levels
stipulated in the EM&A programme. Relevant investigation and follow-up actions
were conducted for DO results triggering the relevant Action Level and the
investigation findings revealed that the cases were not related to the Project.
To conclude, the construction activities during the reporting period did not
introduce adverse impact to all water quality sensitive receivers.
Summary of Upcoming Key
Issues
Contract 3206 Main Reclamation Works
● Filling materials delivery.
Airfield Works
Contract
3302 Eastern Vehicular Tunnel Advance Works
● Construction
of tunnel structure;
● Pipe and
drainage diversion works;
● Utilities
and backfilling works; and
● Stockpiling.
Contract 3305 Airfield Ground Lighting System
● Enhanced
vehicular warning light hardware installation;
● Power supply
system installation;
● Rectification
work for airfield ground lighting system; and
● Cable
containment installation.
Contract 3306 Observation
Facility Control System Supporting Interim 2RS and 3RS
● Equipment
installation;
● Structured
cabling.
Contract 3308 Foreign Object
Debris Detection System
● Rectification
work for handover sensor system.
Contract 3310 North
Runway Modification Works
● Architectural,
builder's work and finishing works;
● Seawall
construction;
● Construction
of stormwater drainage;
● Piling
works;
● Aviation
fuel pipe works;
● Pipe pile
works;
● Construction
of box culvert; and
● Land
improvement works (Transition layer and backfilling works).
Third Runway Concourse:
Contract
3403 New Integrated Airport Centres Building and Civil Works
● Architectural,
builder's work and finishing works; and
● Electrical
and mechanical works.
Contract
3404 Integrated Airport Control System
● System
maintenance.
Contract 3405 Third Runway Concourse Foundation and
Substructure Works
● Structure
works;
● Marine
sediment treatment works; and
● Tunnel
concreting and backfilling works;
Contract 3408 Third Runway Concourse and Apron Works
● Building
services and architectural, builder's work and finishing works;
● Erection
works for concrete batching plant; and
● Excavation
and reinforced concrete works.
Terminal 2 Expansion:
Contract 3508 Terminal 2 Expansion Works
● Bridge
demolition;
● Pier and
temporary road construction;
● Pump station
and electrical station works; and
● Architectural,
builder's work and finishing works.
Automated People Mover (APM) and Baggage Handling System
(BHS):
Contract 3601 New Automated People Mover System (TRC Line)
● Guide beam
installation.
Contract 3602 Existing APM System Modification Works
● Concrete
plinth construction.
Contract 3603 Baggage Handling
System (BHS)
● BHS
installation; and
● Steel work
installation.
Construction Support (Facilities):
Contract
3721 Construction Support Infrastructure Works
● Provision of
backup services.
Airport Support Infrastructure:
Contract 3801 APM and BHS Tunnels on Existing Airport
Island
● Backfilling works;
● Gas main pipe laying;
● Road reinstatement works; and
● Coring works at bulkhead wall.
Contract 3802 APM and BHS Tunnels and Related Works
● Excavation
and lateral supports;
● Box culvert
construction;
● Tunnel
construction; and
● Electrical
and mechanical works.
Contract 3804 East and Landside Fire Stations
● Site setup
and formation works;
● Bored pile
works;
● Raft
foundation and footing works; and
● Tower crane
footing and erection works.
Contract 3805 New Airport District Police Operational Base
● Bored pile
works; and
● Construction
of temporary working platform.
Construction Support (Services / Licences):
Contract 3901A Concrete Batching Facility
● Operation of
concrete batching plant and material conveyor belt.
Contract 3901B
Concrete Batching Facility
● Operation of
concrete batching plant and material conveyor belt.
Contract 3908 Quay
Management Services
● Provision of services
of site management and logistic control of 3RS quays; and
● Provision of
flat top barge and vehicle delivery services between the launching point in
Hong Kong and 3RS quays.
Contract 3913
Asphalt Batching Plant
● Operation
of asphalt batching plant.
Summary Table
The following table summarises the key findings of the
EM&A programme during the reporting period:
|
Yes |
No |
Details |
Analysis / Recommendation / Remedial Actions |
|
|
Breach of Limit Level^ |
|
√ |
No breach of Limit Level was recorded. |
Nil |
|
Breach of Action Level^ |
|
√ |
No breach of Action Level was recorded. |
Nil |
|
Complaint Received |
|
√ |
No construction activities-related complaint was received during the reporting period. |
Nil |
|
Notification of any summons and status of prosecutions |
|
√ |
No notification of summons nor prosecution was received. |
Nil |
|
Change that affect the EM&A |
|
√ |
There was no change to the construction works that may affect the EM&A. |
Nil |
Note:
^ Only triggering of Action or Limit Level found related to Project works is counted as Breach of Action or Limit Level.
1
Introduction
1.1
Background
On 7 November 2014, the
Environmental Impact Assessment (EIA) Report (Register No.: AEIAR-185/2014) for
the “Expansion of Hong Kong International Airport into a Three-Runway System”
(the Project) was approved and an Environmental Permit (EP) (Permit No.:
EP-489/2014) was issued for the construction and operation of the Project.
Airport Authority Hong Kong
(AAHK) commissioned Mott MacDonald Hong Kong Limited (MMHK) to undertake the
role of Environmental Team (ET) for carrying out the Environmental Monitoring
& Audit (EM&A) works during the construction phase of the Project in
accordance with the Updated EM&A Manual (the Manual) submitted under EP
Condition 3.1[1].
AECOM Asia Company Limited (AECOM) was employed by AAHK as the Independent
Environmental Checker (IEC) for the Project.
The Project covers the expansion
of the existing airport into a three-runway system (3RS) with key project
components comprising land formation of about 650 ha and all associated
facilities and infrastructure including taxiways, aprons, aircraft stands, a
passenger concourse, an expanded Terminal 2, all related airside and landside
works and associated ancillary and supporting facilities. The submarine
aviation fuel pipelines and submarine power cables also require diversion as
part of the works.
Construction of the Project is to
proceed in the general order of diversion of the submarine aviation fuel
pipelines, diversion of the submarine power cables, land formation, and
construction of infrastructure, followed by construction of superstructures.
The
summary of construction works programme can be referred to Section 1.4.
1.2
Scope of this Report
This is the 91st
Construction Phase 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
July 2023.
1.3
Project Organisation
The
Project’s organisation structure presented in Appendix B of the Construction
Phase Monthly EM&A Report No.1 remained unchanged during the reporting
period. Contact details of the key personnel are presented in Table 1.1.
Table 1.1: Contact Information of Key
Personnel
|
Party |
Position |
Name |
Telephone |
|
Project Manager’s Representative (Airport Authority Hong Kong) |
Principal Manager, Environmental Compliance, Sustainability |
Lawrence Tsui |
2183 2734 |
|
Environmental Team (ET) (Mott MacDonald Hong Kong Limited) |
Environmental Team Leader |
Terence Kong |
2828 5919 |
|
Deputy Environmental Team Leaders |
Heidi Yu |
2828 5704 |
|
|
Ken Wong |
2828 5817 |
||
|
Independent Environmental Checker (IEC) (AECOM Asia Company Limited) |
Independent Environmental Checker |
Roy Man |
3922 9141 |
|
Deputy Independent Environmental Checker |
Jackel Law |
3922 9376 |
Reclamation
Works:
|
Party |
Position |
Name |
Telephone |
|
Contract 3206 Main Reclamation Works (ZHEC-CCCC-CDC Joint Venture) |
Project Manager |
Alan Mong |
3763 1352 |
|
Environmental Officer |
Zhang Bin Wang |
3763 1525 |
Airfield
Works:
|
Party |
Position |
Name |
Telephone |
|
Contract 3302 Eastern Vehicular Tunnel Advance Works (China Road and Bridge Corporation) |
Project Manager |
Dickey Yau |
5699 4503 |
|
Environmental Officer |
Dennis Ho |
5645 0563 |
|
|
Contract 3305 Airfield Ground Lighting System (ADB Safegate Hong Kong Limited) |
Project Manager |
Allam Al-Turk |
2944 9725 |
|
Environmental Officer |
Ivan Ting |
9222 9490 |
|
|
Contract 3306 Observation Facility Control System Supporting Interim 2RS and 3RS (Chinney Alliance Engineering Limited) |
Project Director |
Dennis Yam |
9551 9920 |
|
Environmental Officer |
Richard Liu |
9216 8990 |
|
|
Contract 3307 Fire Training Facility (Paul Y. Construction Company Limited) |
Project Manager |
Ken Tang |
9640 5397 |
|
Environmental Officer |
Ferddy Leung |
5585 6746 |
|
|
Contract 3308 Foreign Object Debris Detection System (DAS Aviation Services Group) |
Project Manager |
Jeffrey Yau |
9873 7422 |
|
Contract 3310 North Runway Modification Works (China State Construction Engineering (Hong Kong) Ltd.) |
Project Manager |
Kingsley Chiang |
9424 8437 |
|
Environmental Officer |
Federick Wong |
9842 2703 |
Third
Runway Concourse:
|
Party |
Position |
Name |
Telephone |
|
Contract 3402 New Integrated Airport Centres Enabling Works (Wing Hing Construction Co., Ltd.) |
Project Manager |
Wyman Lau |
6112 9753 |
|
Health Safety Environmental Manager |
Mike Leung |
6625 2550 |
|
|
Contract 3403 New Integrated Airport Centres Building and Civil Works (Sun Fook Kong Construction Limited) |
Project Manager |
Alice Leung |
9220 3162 |
|
Environmental Officer |
Ray Cheung |
9785 1566 |
|
|
Contract 3404 Integrated Airport Control System (Shun Hing Systems Integration Co., Ltd.) |
Project Manager |
Andy Ng |
9102 2739 |
|
Safety and Environmental Manager |
Josephine Chang |
9383 7705 |
|
|
Contract 3405 Third Runway Concourse Foundation and Substructure Works (China Road and Bridge Corporation – Bachy Soletanche Group Limited – LT Sambo Co., Ltd. Joint Venture) |
Project Manager |
Francis Choi |
9423 3469 |
|
Environmental Officer |
Jacky Lai |
9028 8975 |
|
|
Contract 3408 Third Runway Concourse and Apron Works (Beijing Urban Construction Group Company Limited and Chevalier (Construction) Company Limited Joint Venture) |
Assistant Project Manager |
Qian Zhang |
5377 7976 |
|
Environmental Officer |
Malcolm Leung |
7073 7559 |
Terminal 2
(T2) Expansion:
|
Party |
Position |
Name |
Telephone |
|
Contract 3508 Terminal 2 Expansion Works (Gammon Engineering & Construction Company Limited) |
Project Director |
Richard Ellis |
6201 5637 |
|
Environmental Officer |
Fanny Law |
6184 4650 |
Automated
People Mover (APM) and Baggage Handling System (BHS):
|
Party |
Position |
Name |
Telephone |
|
Contract 3601 New Automated People Mover System (TRC Line) (CRRC Puzhen Bombardier Transportation Systems Limited and CRRC Nanjing Puzhen Co., Ltd. Joint Venture) |
Project Manager |
Hongdan Wei |
158 6180 9450 |
|
Environmental Officer |
H Y Yue |
9185 8186 |
|
|
Contract 3602 Existing APM System Modification Works (Niigata Transys Co., Ltd.) |
Project Manager |
Xia Bo |
6586 4950 |
|
Environmental Officer |
Y M Tong |
5316 9801 |
|
|
Contract 3603 3RS Baggage Handling System (VISH Consortium) |
Project Manager |
K C Ho |
9272 9626 |
|
Environmental Officer |
Richard Ng |
9802 9577 |
Construction Support (Facilities):
|
Party |
Position |
Name |
Telephone |
|
Contract 3721 Construction Support Infrastructure Works (China State Construction Engineering (Hong Kong) Ltd.) |
Site Agent |
Thomas Lui |
9011 5340 |
|
Environmental Officer |
John Mak |
6273 8703 |
|
|
Contract 3728 Minor Site Works (Shun Yuen Construction Company Limited) |
Contract Manager |
C K Liu |
9194 8739 |
|
Environmental Officer |
Dan Leung |
6856 5899 |
|
|
Contract 3733 Emergency Repair Service (Wing Hing Construction Co., Ltd.) |
Project Manager
|
Michael Kan |
9206 0550 |
|
Safety Health Environmental Manager |
Mike Leung |
6625 2550 |
Airport
Support Infrastructure:
|
Party |
Position |
Name |
Telephone |
|
Contract 3801 APM and BHS Tunnels on Existing Airport Island (China State Construction Engineering (Hong Kong) Ltd.) |
Project Manager |
Kingsley Chiang |
9424 8437 |
|
Environmental Officer |
Eunice Kwok |
9243 1331 |
|
|
Contract 3802 APM and BHS Tunnels and Related Works (Gammon Engineering & Construction Company Limited) |
Project Director |
John Adams |
6111 6989 |
|
Environmental Officer* |
Phoebe Ng |
9869 1105 |
|
|
Environmental Supervisor |
Yan Ng |
5345 8555 |
|
|
Contract 3804 East and Landside Fire Stations (Beijing Urban Construction Group Company Limited - Beijing Urban Construction International Company Limited - Kin Shing (Leung's) General Contractors Ltd Joint Venture) |
Project Manager |
Mr. Zhang Xianda |
4661 6818 |
|
Environmental Officer |
Ms. Kimberly Wong |
5542 1669 |
|
|
Contract 3805 New Airport District Police Operational Base (Chinney Construction Co., Ltd.) |
Project Manager |
Cheuk Wing Wai |
9339 8321 |
|
Environmental Officer |
Mike Li |
6306 8547 |
* Environmental Officer of C3802 left on 24 July 2023 and was replaced by
Environmental Supervisor Yan Ng.
Construction Support (Services / Licences):
|
Party |
Position |
Name |
Telephone |
|
Contract 3901A Concrete Batching Facility (K. Wah Concrete Company Limited) |
Project Manager |
Benedict Wong |
9553 2806 |
|
Environmental Officer |
C P Fung |
9874 2872 |
|
|
Contract 3901B Concrete Batching Facility (Gammon Construction Limited) |
General Manager |
Gabriel Chan |
2435 3260 |
|
Environmental Officer |
Rex Wong |
2695 6319 |
|
|
Contract 3908 Quay Management Services (Gitanes – Crown Asia Joint Venture) |
Project Manager |
Mr. Ian Li |
9750 6438 |
|
Environmental Officer |
Mr. Tang Kai Fun |
9406 3526 |
|
|
Contract 3913 Asphalt Batching Plant (SPR Joint Venture) |
Project Manager |
Xie Yi Sheng |
6580 6005 |
|
Environmental Officer |
Kenneth Chan |
9300 2182 |
1.4
Summary of
Construction Works
The key activities
of the Project carried out in the reporting period are located in reclamation
areas and existing airport island respectively. Works in the reclamation areas
included seawall construction and filling, together with taxiways, concourse, tunnel
work for Automated People Mover (APM) and Baggage Handling System (BHS) and
associated works. Land-based works on existing airport island involved mainly
airfield works, Terminal 2 expansion works, modification and tunnel work for
APM and BHS, and preparation work for utilities, with activities include road
and drainage works, cable ducting, demolition, piling, and excavation works.
The
locations of key construction activities are presented in Figure 1.1.
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 of All Environmental Aspects under the Updated EM&A Manual
|
Parameters |
EM&A Requirements |
Status |
|
Air Quality |
||
|
Baseline Monitoring |
At least 14 consecutive days before commencement of construction work |
The baseline air quality monitoring result was reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4. |
|
Impact Monitoring |
At least 3 times every 6 days |
On-going |
|
Noise |
||
|
Baseline Monitoring |
Daily for a period of at least two weeks prior to the commencement of construction works |
The baseline noise monitoring result was reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4. |
|
Impact Monitoring |
Weekly |
On-going |
|
Water Quality |
||
|
General Baseline Water Quality Monitoring for reclamation, water jetting and field joint works |
Three days per week, at mid-flood and mid-ebb tides, for at least four weeks prior to the commencement of marine works. |
The baseline water quality monitoring result was reported in Baseline Water Quality Monitoring Report and submitted to EPD under EP Condition 3.4. |
|
General Impact Water Quality Monitoring for reclamation, water jetting and field joint works |
Three days per week, at mid-flood and mid-ebb tides. |
On-going for reclamation works. General impact water quality monitoring for water jetting works was completed on 23 May 2017. |
|
Initial Intensive Deep Cement Mixing (DCM) Water Quality Monitoring |
At least four weeks |
The Initial Intensive DCM Monitoring Report was submitted and approved by EPD in accordance with the Detailed Plan on DCM. |
|
Regular DCM Water Quality Monitoring |
Three times per week until completion of DCM works. |
Due to the completion of all marine-based DCM works within April 2022, regular DCM monitoring was ceased at all monitoring stations starting from 28 April 2022 and would be resumed if there are marine-based DCM works in the coming future. |
|
Sewerage and Sewage Treatment |
||
|
Methodology for carrying out annual sewage flow monitoring for concerned gravity sewer |
Methodology to be prepared and submitted to EPD one year before the scheduled commencement of operation of the proposed third runway |
The proposed methodology of the annual sewage flow monitoring was approved by EPD. The annual flow monitoring was started from June 2021 and completed in 2022. |
|
Details of the routine H2S monitoring system for the sewerage system of 3RS |
Details to be prepared and submitted to EPD at least one year before commencement of the operation of 3RS |
The H2S monitoring proposal was accepted by EPD in Jun 2023. |
|
Waste Management |
||
|
Waste Monitoring |
At least weekly |
On-going |
|
Land Contamination |
||
|
Supplementary Contamination Assessment Plan (CAP) |
At least 3 months before commencement of any soil remediation works. |
The Supplementary CAP was submitted and approved by EPD under EP Condition 2.20. |
|
Contamination Assessment Report (CAR) for Golf Course |
CAR to be submitted for golf course |
The CAR for Golf Course was submitted and accepted by EPD. |
|
Contamination Assessment Reports (CAR) for Terminal 2 Emergency Power Supply Systems |
CAR to be submitted for Terminal 2 Emergency Power Supply Systems |
The CARs for Terminal 2 Emergency Power Supply Systems were submitted and accepted by EPD. |
|
Terrestrial Ecology |
||
|
Pre-construction Egretry Survey Plan |
Once per month in the breeding season between April and July, prior to the commencement of HDD drilling works. |
The Egretry Survey Plan was submitted and approved by EPD under EP Condition 2.14. |
|
Ecological Monitoring |
Monthly monitoring during the HDD construction works period from August to March. |
The terrestrial ecological monitoring at Sheung Sha Chau was completed in January 2019. |
|
Marine Ecology |
||
|
Pre-Construction Phase Coral Dive Survey |
Prior to marine construction works |
The Coral Translocation Plan was submitted and approved by EPD under EP Condition 2.12. |
|
Coral Translocation |
- |
The coral translocation was completed. |
|
Post-Translocation Coral Monitoring |
As per an enhanced monitoring programme based on the Coral Translocation Plan |
The post-translocation monitoring programme according to the Coral Translocation Plan was completed in April 2018. |
|
Chinese White Dolphins (CWD) |
||
|
Baseline Monitoring |
6 months of baseline surveys before the commencement of land formation related construction works. Vessel line transect surveys: Two full surveys per month; Land-based theodolite tracking surveys: Two days per month at the Sha Chau station and two days per month at the Lung Kwu Chau station; and Passive Acoustic Monitoring (PAM): For the whole duration of baseline period. |
Baseline CWD results were reported in the CWD Baseline Monitoring Report and submitted to EPD in accordance with EP Condition 3.4. |
|
Impact Monitoring |
Vessel line transect surveys: Two full surveys per month; Land-based theodolite tracking surveys: One day per month at the Sha Chau station and one day per month at the Lung Kwu Chau station; and PAM: For the whole duration for land formation related construction works. |
On-going |
|
Landscape & Visual |
|
|
|
Landscape & Visual Plan |
At least 3 months before the commencement of construction works on the formed land of the Project. |
The Landscape & Visual Plan was submitted and approved by EPD under EP Condition 2.18 |
|
Baseline Monitoring |
One-off survey within the Project site boundary prior to commencement of any construction works |
The baseline landscape & visual monitoring result was reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4. |
|
Impact Monitoring |
Weekly |
On-going |
|
Establishment Works Monitoring |
Bi-monthly |
On-going |
|
Long Term Management (10 years) Monitoring |
Annually |
On-going |
|
Environmental Auditing |
|
|
|
Regular site inspection |
Weekly |
On-going |
|
Marine Mammal Watching Plan (MMWP) implementation measures |
Monitor and check |
No Marine Mammal Watching Plan (MMWP) implementation measures during this reporting period. |
|
Dolphin Exclusion Zone (DEZ) Plan implementation measures |
Monitor and check |
On-going |
|
SkyPier High Speed Ferries (HSF) implementation measures |
Monitor and check |
On-going |
|
Construction and Associated Vessels Implementation measures |
Monitor and check |
On-going |
|
Silt Curtain Deployment Plan implementation measures |
Monitor and check |
On-going |
|
Spill Response Plan implementation measures |
Monitor and check |
On-going |
|
Complaint Hotline and Email channel |
Construction phase |
On-going |
|
Environmental Log Book |
Construction phase |
On-going |
Taking into account the
construction works in this reporting period, impact monitoring of air quality,
noise, water quality, waste management, landscape & visual, and CWD were
carried out in the reporting period.
The EM&A programme also
involved weekly 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. To promote
the environmental awareness and enhance the environmental performance of the
contractors, regular environmental management meetings were conducted
during the reporting period, which are summarised as below:
● Seventeen environmental management
meetings for EM&A review with works contracts: 5, 6, 7, 11, 13, 18, 19, 20,
21, 24, 25, 26 & 27 July 2023.
The EM&A programme has been
following the recommendations presented in the approved EIA Report and the
Manual. A summary of implementation status of the environmental mitigation
measures for the construction phase of the Project during the reporting period
is provided in Appendix
A.
2
Air Quality Monitoring
Air quality monitoring of 1-hour
Total Suspended Particulates (TSP) was conducted three times every six days at
two representative monitoring stations in the vicinity of air sensitive
receivers in Tung Chung and villages in North Lantau in accordance with the
Manual. Table 2.1 describes the details of the
monitoring stations. Figure
2.1 shows the locations of the monitoring stations.
Table 2.1: Locations of
Impact Air Quality Monitoring Stations
|
Monitoring Station |
Location |
|
AR1A |
Man Tung Road Park |
|
AR2 |
Village House at Tin Sum |
2.1
Action and Limit Levels
In accordance with the Manual,
baseline air quality monitoring of 1-hour TSP levels at the two air quality
monitoring stations were established as presented in the Baseline Monitoring
Report. The Action and Limit Levels of the air quality monitoring stipulated in
the EM&A programme for triggering the relevant investigation and follow-up
procedures under the programme are provided in Table 2.2.
Table 2.2: Action and
Limit Levels of Air Quality Monitoring
|
Monitoring Station |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
AR1A |
306 |
500 |
|
AR2 |
298 |
2.2
Monitoring Equipment
Portable direct reading dust
meter was used to carry out the air quality monitoring. Details of equipment
used in the reporting period are given in Table 2.3.
Table 2.3: Air Quality
Monitoring Equipment
|
Brand and Model |
Last Calibration Date |
Calibration Certificate Provided in |
|
|
Portable direct reading dust meter (Laser dust monitor)
|
SIBATA LD-3B-2 (Serial No. 296098) |
16 Sep 2022 |
Appendix D of Monthly EM&A Report No. 83 |
2.3
Monitoring Methodology
2.3.1
Measuring Procedure
The measurement procedures
involved in the impact air quality monitoring can be summarised as
follows:
a. The portable direct reading dust meter was
mounted on a tripod at a height of 1.2m above the ground.
b. Prior to the measurement, the equipment was
set up for 1 minute span check and 6 second background check.
c. The one hour dust measurement was started.
Site conditions and dust sources at the nearby area were recorded on a record
sheet.
d. When the measurement completed, the “Count”
reading per hour was recorded for result calculation.
2.3.2
Maintenance and Calibration
The portable direct reading dust
meter is calibrated every year against high volume sampler (HVS) to check the
validity and accuracy of the results measured by direct reading method. The
calibration record of the HVS provided in Appendix D of the Monthly EM&A
Report No. 77 and the calibration certificates of portable
direct reading dust meters listed in Table 2.3 are valid in the reporting period.
2.4
Summary of Monitoring Results
The air quality monitoring
schedule of the reporting period is provided
in Appendix B.
The air quality monitoring
results in the reporting period are summarised in Table 2.4.
Detailed impact monitoring results are presented in Appendix C.
Table 2.4: Summary of Air
Quality Monitoring Results
|
Monitoring Station |
1-hr TSP Concentration Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
AR1A |
10 - 96 |
306 |
500 |
|
AR2 |
9 - 45 |
298 |
The monitoring results were
within the corresponding Action and Limit Levels at all monitoring stations in
the reporting period.
General meteorological conditions
throughout the impact monitoring period were recorded. Wind data including wind
speed and wind direction for each monitoring day were collected from the Chek Lap Kok Wind Station.
2.5
Conclusion
No dust emission source was
observed at the monitoring stations during the monitoring sessions. As the
sensitive receivers were far away from the construction activities, with the
implementation of dust control measures, there was no adverse impact at the
sensitive receivers attributable to the works of the Project.
3
Noise Monitoring
Noise monitoring in the form of
30-minute measurements of Leq, L10,
and L90 levels was conducted once per week between 0700 and 1900 on
normal weekdays at four representative monitoring stations in the vicinity of
noise sensitive receivers in Tung Chung and villages in North Lantau in
accordance with the Manual. Table 3.1 describes the
details of the monitoring stations. Figure 2.1 shows the
locations of the monitoring stations.
Table 3.1: Locations of
Impact Noise Monitoring Stations
|
Monitoring Station |
Location |
Type of measurement |
|
NM1A |
Man Tung Road Park |
Free field |
|
NM2(1) |
Tung Chung West Development |
To be determined |
|
NM3A(2) |
Site Office |
Facade |
|
NM4 |
Ching Chung Hau Po Woon Primary School |
Free field |
|
NM5 |
Village House in Tin Sum |
Free field |
|
NM6 |
House No. 1, Sha Lo Wan |
Free field |
Notes:
(1) As
described in Section 4.3.3 of the Manual, noise monitoring at NM2 will only
commence after occupation of the future Tung Chung West Development.
(2) According to Section 4.3.3 of the
Manual, the noise monitoring at NM3A was temporarily suspended starting from 1
September 2018 and would be resumed with the completion of the Tung Chung East
Development.
3.1
Action and Limit Levels
In accordance with the Manual,
baseline noise levels at the noise monitoring stations were established as
presented in the Baseline Monitoring Report. The Action and Limit Levels of the
noise monitoring stipulated in the EM&A programme for triggering the
relevant investigation and follow-up procedures under the programme are
provided in Table 3.2.
Table 3.2: Action and
Limit Levels for Noise Monitoring
|
Monitoring Stations |
Time Period |
Action Level |
Limit Level, Leq(30mins) dB(A) |
|
NM1A, NM2, NM3A, NM4, NM5 and NM6 |
0700-1900 hours on normal weekdays |
When one documented complaint is received from any one of the sensitive receivers |
75dB(A)(1) |
Note:
(1) The
Limit Level for NM4 is reduced to 70dB(A) for being an educational institution.
During school examination period, the Limit Level is further reduced to
65dB(A).
3.2
Monitoring Equipment
Noise monitoring was performed
using sound level meter at each designated monitoring station. The sound
level meters deployed comply with the International Electrotechnical Commission
Publications 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic
calibrator was used to check the sound level meters by a known sound pressure
level for field measurement. Details of equipment used in the reporting
period are given in Table 3.3.
Table 3.3: Noise
Monitoring Equipment
|
Equipment |
Brand and Model |
Last Calibration Date |
Calibration Certificate Provided in |
|
Integrated Sound Level Meter |
Rion NL-52 (Serial No. 00998505) |
19 Mar 2023 |
Appendix D of Monthly EM&A Report No.87 |
|
Integrated Sound Level Meter |
Rion NL-52 (Serial No. 01287679) |
10 Oct 2022 |
Appendix D of Monthly EM&A Report No. 82 |
|
Acoustic Calibrator |
Castle GA607 (Serial No. 040162) |
19 Mar 2023 |
Appendix D of Monthly EM&A Report No.87 |
|
Acoustic Calibrator |
Casella CEL-120 (Serial No. 2383737) |
18 Jun 2023 |
3.3
Monitoring Methodology
3.3.1
Monitoring Procedure
The monitoring procedures involved in the noise monitoring
can be summarised as follows:
a. The sound level meter was set on a tripod at
least a height of 1.2m above the ground for free-field measurements at
monitoring stations NM1A, NM4, NM5 and NM6. A correction of +3dB(A) was applied
to the free field measurements.
b. Façade measurements were made at the
monitoring station NM3A.
c. Parameters such as frequency weighting, time
weighting and measurement time were set.
d. Prior to and after each noise measurement,
the meter was calibrated using the acoustic calibrator. If the difference
in the calibration level before and after measurement was more than 1dB(A), the
measurement would be considered invalid and repeat of noise measurement would
be required after re-calibration or repair of the equipment.
e. During the monitoring period, Leq, L10 and L90 were
recorded. In addition, site conditions and noise sources were recorded on a
record sheet.
f. Noise measurement results, when higher
than the baseline monitoring levels, were corrected with reference to the
baseline monitoring levels.
g. Observations were recorded when high
intrusive noise (e.g. dog barking, helicopter noise) was observed during the
monitoring.
3.3.2
Maintenance and Calibration
The maintenance and calibration procedures are summarised
below:
a. The microphone head of the sound level meter
was cleaned with soft cloth at regular intervals.
b. The meter and calibrator were sent to the
supplier or laboratory accredited under Hong Kong Laboratory Accreditation
Scheme (HOKLAS) to check and calibrate at yearly intervals.
Calibration
certificates of the sound level meters and acoustic
calibrators used in the noise monitoring listed in Table 3.3
are valid in the reporting period.
3.4
Summary of Monitoring Results
The noise monitoring
schedule of reporting period is provided in Appendix B.
The noise monitoring results in the
reporting period are summarised in Table 3.4.
Detailed impact monitoring results are presented in Appendix C.
Table 3.4: Summary of
Construction Noise Monitoring Results
|
Monitoring Station |
Noise Level Range, dB(A) Leq (30mins) |
Limit Level, dB(A) Leq (30mins) |
|
NM1A(1) |
64 - 71 |
75 |
|
NM4(1) (3) |
62 - 65 |
70(2) |
|
NM5(1) (3) |
65 - 66 |
75 |
|
NM6(1) (3) |
61 - 68 |
75 |
Notes:
(1) +3dB(A)
Façade correction included;
(2) The
limit level will be reduced to 65dB(A) during school examination periods at
NM4. School examination took place on 18 July 2023 during this reporting
period.
(3) Some
of the noise measurement results were higher than the baseline monitoring
levels. In order to reduce the influence of non-Project related noise on the
monitoring results, these measurement results were corrected with reference to
the baseline monitoring results.
No complaints were received from any
sensitive receiver that triggered the Action Level. All monitoring results were
within the corresponding Limit Levels at all monitoring stations in the
reporting period.
3.5
Conclusion
As the construction activities were far away from the monitoring stations, major sources of noise dominating the monitoring stations observed during the construction noise impact monitoring were traffic noise near NM1A, school activities near NM4 and aircraft noise near NM6 during this reporting period. It is considered that the monitoring work during the reporting period was effective and there was no adverse impact attributable to the Project activities.
4
Water Quality Monitoring
Water
quality monitoring of DO, pH, temperature, salinity, turbidity, and suspended
solids (SS) was conducted three days per week, at mid-ebb and mid-flood tides,
at a total of 14 water quality monitoring stations, comprising 6 impact (IM)
stations, 5 sensitive receiver (SR) stations and 3 control (C) stations in the
vicinity of water quality sensitive receivers around the airport island in
accordance with the Manual. The purpose of water
quality monitoring at the IM stations is to promptly capture any potential
water quality impact from the Project before it could become apparent at
sensitive receivers (represented by the SR stations). Table 4.1 describes the details of the monitoring
stations. Figure 4.1
shows the locations of the monitoring stations.
Table 4.1: Monitoring
Locations of Impact Water Quality Monitoring
|
Monitoring Station |
Description |
Coordinates |
Parameters |
|
|
|
|
Easting |
Northing |
|
|
C1 |
Control Station |
804247 |
815620 |
General Parameters DO, pH, Temperature, Salinity, Turbidity, SS
|
|
C2 |
Control Station |
806945 |
825682 |
|
|
C3(2) |
Control Station |
817803 |
822109 |
|
|
IM1(4) |
Impact Station |
806458 |
818351 |
|
|
IM2(4) |
Impact Station |
806236 |
819183 |
|
|
IM7(4) |
Impact Station |
806835 |
821349 |
|
|
IM10(4) |
Impact Station |
809838 |
822240 |
|
|
IM11(4) |
Impact Station |
810545 |
821501 |
|
|
IM12(4) |
Impact Station |
811519 |
821162 |
|
|
SR1A(1) |
Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) Seawater Intake for cooling |
812660 |
819977 |
General Parameters DO, pH, Temperature, Salinity, Turbidity, SS |
|
SR2 |
Planned marine park / hard corals at The Brothers / Tai Mo To |
814166 |
821463 |
General Parameters DO, pH, Temperature, Salinity, Turbidity, SS
|
|
SR3 |
Sha Chau and Lung Kwu Chau Marine Park / fishing and spawning grounds in North Lantau |
807571 |
822147 |
General Parameters DO, pH, Temperature, Salinity, Turbidity, SS
|
|
SR4A |
Sha Lo Wan |
807810 |
817189 |
|
|
SR8(3) |
Seawater Intake for cooling at Hong Kong International Airport (East) |
811623 |
820390 |
|
Notes:
(1) With
the operation of HKBCF, water quality monitoring at SR1A station was commenced
on 25 October 2018. To better reflect the water quality in the immediate
vicinity of the intake, the monitoring location of SR1A has been shifted closer
to the intake starting from 5 January 2019.
(2) According to the Baseline Water Quality
Monitoring Report, C3 station is not adequately representative as a control
station of impact/ SR stations during the flood tide. The control reference has
been changed from C3 to SR2 from 1 September 2016 onwards.
(3) The monitoring location for SR8 is subject to further changes
due to silt curtain arrangements and the progressive relocation of this
seawater intake.
(4) With the seawall completion and removal of enhanced open sea
silt curtains, these monitoring stations were relocated back to their original
locations. For IM2, there was minor adjustment of the monitoring location.
4.1
Action and Limit Levels
In accordance with the Manual,
baseline water quality levels at the representative water quality monitoring
stations were established as presented in the Baseline Water Quality Monitoring
Report. The
Action and Limit Levels of general water quality monitoring stipulated in the
EM&A programme for triggering the relevant investigation and follow-up
procedures under the programme are provided in Table 4.2.
The control and impact stations during ebb tide and flood tide for general
water quality monitoring are presented in Table 4.3.
Table 4.2: Action and
Limit Levels for General Water Quality Monitoring
|
Parameters |
Action Level (AL) |
Limit Level (LL) |
|||
|
Action and Limit Levels for general water quality monitoring (excluding SR1A & SR8) |
|||||
|
General Water Quality Monitoring |
DO in mg/l (Surface, Middle & Bottom) |
Surface and Middle 4.5mg/l |
Surface and Middle 4.1mg/l |
||
|
Bottom 3.4mg/l |
Bottom 2.7mg/l |
||||
|
Suspended Solids (SS) in mg/l |
23 |
or 120% of upstream control station at the same tide of the same day, whichever is higher |
37 |
or 130% of upstream control station at the same tide of the same day, whichever is higher |
|
|
Turbidity in NTU |
22.6 |
36.1 |
|||
|
Action and Limit Levels SR1A |
|
|
|
||
|
SS (mg/l)) |
33 |
|
42 |
|
|
|
Action and Limit Levels SR8 |
|
|
|
|
|
|
SS (mg/l) |
52 |
|
60 |
|
|
Notes:
(1) For
DO measurement, non-compliance occurs when monitoring result is lower than the
limits.
(2)
For parameters other than DO, non-compliance of water quality results
when monitoring results is higher than the limits.
(3)
Depth-averaged results are used unless specified otherwise.
Table
4.3: The Control and Impact Stations during Flood Tide and Ebb Tide for General
Water Quality Monitoring
|
Control Station |
Impact Stations |
|
Flood Tide |
|
|
C1 |
IM1, IM2, IM7, SR3 |
|
SR2(1) |
IM7, IM10, IM11, IM12, SR1A, SR3, SR4A, SR8 |
|
Ebb Tide |
|
|
C1 |
SR4A |
|
C2 |
IM1, IM2, IM7, IM10, IM11, IM12, SR1A, SR2, SR3, SR8 |
(1)
As per
findings of Baseline Water Quality Monitoring Report, the control reference has
been changed from C3 to SR2 from 1 September 2016 onwards.
4.2
Monitoring Equipment
Table 4.4
summarises the equipment used in the reporting period for monitoring of
specific water quality parameters under the water quality monitoring programme.
Table 4.4: Water Quality
Monitoring Equipment
|
Equipment |
Brand and Model |
Last Calibration Date |
Calibration Certificate Provided in |
|
Multifunctional Meter (measurement of DO, pH, temperature, salinity and turbidity) |
YSI ProDSS (Serial No. 15M100005) |
23 Jun 2023 |
|
|
YSI ProDSS (Serial No. 17E100747) |
23 Jun 2023 |
||
|
YSI ProDSS (Serial No. 16H104233) |
2 Jun 2023 |
Appendix D of Monthly EM&A Report No. 90 |
|
|
YSI ProDSS (Serial No. 21K101468) |
2 Jun 2023 |
Appendix D of Monthly EM&A Report No. 90 |
Other equipment used as part of
the impact water quality monitoring programme are listed in Table
4.5.
Table 4.5: Other Monitoring
Equipment
|
Equipment |
Brand and Model |
|
Water Sampler |
Van Dorn Water Sampler |
|
Positioning Device (measurement of GPS) |
Garmin eTrex Vista HCx |
|
Current Meter (measurement of current speed and direction, and water depth) |
Sontek HydroSurveyor |
4.3
Monitoring Methodology
4.3.1
Measuring Procedure
Water quality monitoring samples
were taken at three depths (at 1m below surface, at mid-depth, and at 1m above
bottom) for locations with water depth >6m. For locations with water depth
between 3m and 6m, water samples were taken at two depths (surface and bottom).
For locations with water depth <3m, only the mid-depth was taken. Duplicate
water samples were taken and analysed.
The water samples for all
monitoring parameters were collected, stored, preserved and analysed
according to the Standard Methods, APHA 22nd ed. and/or other
methods as agreed by the EPD. In-situ measurements at monitoring locations
including temperature, pH, DO, turbidity, salinity, and water depth were
collected by equipment listed in Table 4.4 and Table 4.5. Water samples for SS analysis were stored in
high density polythene bottles with no preservative added, packed in ice
(cooled to 4ºC without being frozen), delivered to the laboratory within 24
hours of collection.
4.3.2
Maintenance and Calibration
Calibration of In-situ Instruments
All in-situ monitoring instrument
was checked, calibrated and certified by a laboratory accredited under HOKLAS
before use. Responses of sensors and electrodes were checked with certified
standard solutions before each use.
Wet bulb calibration for a DO
meter was carried out before commencement of monitoring and after completion of
all measurements each day. Calibration was not conducted at each monitoring
location as daily calibration is adequate for the type of DO meter employed. A
zero check in distilled water was performed with the turbidity probe at least
once per monitoring day. The probe was then calibrated with a solution of known
NTU. In addition, the turbidity probe was calibrated at least twice per month
to establish the relationship between turbidity readings (in NTU) and levels of
SS (in mg/l).
Calibration certificates of the
monitoring equipment used in the reporting period are listed in Table 4.4.
4.3.3
Laboratory Measurement / Analysis
Analysis of
SS have been carried out by a HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd (Reg. No. HOKLAS 066). Sufficient
water samples were collected at all the monitoring stations for carrying out
the laboratory SS determination. The SS determination works were started within
24 hours after collection of the water samples. The analysis of SS have followed the standard methods summarised in Table 4.6. The QA/QC procedures for laboratory measurement/
analysis of SS were presented in Appendix F of the Construction Phase Monthly
EM&A Report No.8.
Table 4.6: Laboratory
Measurement/ Analysis of SS
|
Parameters |
Instrumentation |
Analytical Method |
Reporting Limit |
|
SS |
Analytical Balance |
APHA 2540D |
2mg/l |
4.4
Summary of
Monitoring Results
The water quality monitoring
schedule for the reporting period is provided in Appendix B.
The water quality monitoring results for all
parameters, except DO, obtained during the reporting period were within their
corresponding Action and Limit Levels. The detailed monitoring results are presented in Appendix C.
For DO, some of the testing
results triggered the corresponding Action Level, and investigations were
conducted accordingly.
Table 4.7 to Table 4.9 present the summary of the DO compliance
status at IM and SR stations during mid-ebb and mid-flood tides for the
reporting period.
Table 4.7: Summary of DO (Surface and
Middle) Compliance Status (Mid-Ebb Tide)
|
|
IM1 |
IM2 |
IM7 |
IM10 |
IM11 |
IM12 |
SR2 |
SR3 |
SR4A |
|
01-07-23 |
|
|
|
|
|
|
|
|
|
|
04-07-23 |
|
D |
|
|
|
|
|
|
|
|
06-07-23 |
|
|
|
|
|
|
|
|
|
|
08-07-23 |
|
|
|
|
|
|
|
|
|
|
11-07-23 |
|
|
|
|
|
|
|
|
|
|
13-07-23 |
|
|
|
|
|
|
|
|
|
|
15-07-23 |
|
|
|
|
|
|
|
|
|
|
18-07-23 |
|
|
|
|
|
|
|
|
|
|
20-07-23 |
|
|
|
|
|
|
|
|
|
|
22-07-23 |
|
|
|
|
|
|
|
|
|
|
25-07-23 |
|
|
|
|
|
|
|
|
|
|
27-07-23 |
|
|
|
|
|
|
|
|
|
|
29-07-23 |
|
|
|
|
|
|
|
|
|
|
No. of result triggering Action or Limit Level |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Table 4.8: Summary of DO (Bottom)
Compliance Status (Mid-Ebb Tide)
|
|
IM1 |
IM2 |
IM7 |
IM10 |
IM11 |
IM12 |
SR2 |
SR3 |
SR4A |
|
01-07-23 |
|
|
|
|
|
|
|
|
|
|
04-07-23 |
D |
D |
|
|
|
|
|
|
|
|
06-07-23 |
|
|
|
|
|
|
|
|
|
|
08-07-23 |
|
|
|
|
|
|
|
|
|
|
11-07-23 |
|
|
|
|
|
|
|
|
|
|
13-07-23 |
|
|
|
|
|
|
|
|
|
|
15-07-23 |
|
|
|
|
|
|
|
|
|
|
18-07-23 |
|
|
|
|
|
|
|
|
|
|
20-07-23 |
|
|
|
|
|
|
|
|
|
|
22-07-23 |
|
|
|
|
|
|
|
|
|
|
25-07-23 |
|
|
|
|
|
|
|
|
|
|
27-07-23 |
|
|
|
|
|
|
|
|
|
|
29-07-23 |
|
|
|
|
|
|
|
|
|
|
No. of result triggering Action or Limit Level |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Table 4.9: Summary of
DO (Bottom) Compliance Status (Mid-Flood Tide)
|
|
IM1 |
IM2 |
IM7 |
IM10 |
IM11 |
IM12 |
SR3 |
SR4A |
|
01-07-23 |
|
|
|
|
|
|
|
|
|
04-07-23 |
|
|
|
|
|
|
|
|
|
06-07-23 |
|
|
|
|
|
|
|
|
|
08-07-23 |
|
|
|
|
|
|
|
|
|
11-07-23 |
|
|
|
|
|
|
|
|
|
13-07-23 |
|
|
|
|
|
|
|
|
|
15-07-23 |
|
|
|
|
|
|
|
|
|
18-07-23 |
|
|
|
|
|
|
|
|
|
20-07-23 |
|
|
|
|
|
|
|
|
|
22-07-23 |
|
|
|
|
|
|
|
|
|
25-07-23 |
|
|
|
|
|
|
|
|
|
27-07-23 |
|
|
|
|
|
|
|
|
|
29-07-23 |
|
|
|
|
|
|
|
|
|
No. of result triggering Action or Limit Level |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
|
Note: Detailed results are presented in Appendix C. |
|
|
Legend: |
|
|
|
The monitoring results were within the corresponding Action and Limit Levels |
|
|
Monitoring result triggered the Action Level at monitoring station located upstream of the Project based on dominant tidal flow |
|
D |
Monitoring result triggered the Action Level at monitoring station located downstream of the Project based on dominant tidal flow |
|
|
Monitoring result triggered the Limit Level at monitoring station located upstream of the Project based on dominant tidal flow |
|
D |
Monitoring result triggered the Limit Level at monitoring station located downstream of the Project based on dominant tidal flow |
|
|
Upstream station with respect to the Project during the respective tide based on dominant tidal flow |
Monitoring results triggered the
corresponding Action Level on two monitoring days. In accordance with Event and
Action Plan stipulated in the Manual, IEC and Contractors were informed when
the corresponding Action Level was triggered. Repeat in-situ measurements were
conducted for monitoring stations located downstream during ebb tide on 5 July
2023 according to the requirements as stipulated in the Manual.
Monitoring result triggered the
corresponding Action Level at IM1, IM2 and SR4A on 27 July 2023. The case
occurred at monitoring stations upstream of the Project during flood tide and
would unlikely be affected by the Project.
Investigations focusing on the
cases which occurred at monitoring stations located downstream of the Project
were carried out. Details of the Project’s marine construction activities and
site observations of the concerned monitoring days were collected. Findings
were summarised in Table 4.10.
Table
4.10: Summary of Findings from Investigation of DO Monitoring Results
|
|
Date |
Marine construction works nearby |
Approximate distance from marine construction works
|
Status of water quality measures (if applicable) |
Construction vessels in the vicinity |
Turbidity / Silt plume observed near the monitoring station |
Action or Limit Level triggered due to Project |
|
04/07/2023 |
Seawall construction |
At least 1 km |
Implemented |
No |
No |
No |
|
The investigations confirmed that
seawall construction works were conducted with proper implementation of
mitigation measures during the concerned monitoring days.
For the DO results recorded at
the Surface and Middle water depth during mid-ebb tide (please refer to Table 4.7), only one downstream stations,
IM2 triggered Action Level on 4 July 2023. It is noted that the monitoring
station is located in the western side of the Project, which had similar
previous records of widespread low DO level during wet season, implying the
cases might be due to presence of external factors out of the project area.
For the DO results recorded at
the Bottom water depth during mid-ebb tide (please refer to Table 4.8), only downstream stations triggered Action
Level on 4 July 2023. For both IM1 and IM2, it is noted that these stations are
located in the western side of the Project, which had similar previous records
of widespread low DO level during wet season. Similar low DO levels were also
recorded at control stations C1 and C2, and the seawall construction works were
undertaken more than 1 km away from the monitoring stations, which might
possibly suggest the presence of external factors affecting the DO concentration.
No
silt plume, construction vessel, spillage incident or specific observation at
outfalls were observed in the vicinity when monitoring was undertaken at the
monitoring stations. Therefore, the case was considered unlikely due to the
Project.
4.5
Conclusion
During the reporting period, it
is noted that most of the monitoring results were within their corresponding
Action and Limit Levels, while some DO measurement results triggered the
corresponding Action Level. Investigations were conducted accordingly.
Based on the investigation
findings, all results that triggered the corresponding Action Level were not
due to the project. Therefore, the Project did not cause adverse impact at the
water quality sensitive receivers. All required actions under the Event and
Action Plan were followed. These cases appeared to be due to natural
fluctuation or other sources not related to the Project.
Nevertheless, as part of the
EM&A programme, the construction methods and mitigation measures for water
quality will continue to be monitored and opportunities for further enhancement
will continue to be explored and implemented where possible, to strive for
better protection of water quality and the marine environment.
In the meantime, the contractors were reminded to implement and maintain all mitigation measures as recommended in the Manual during weekly site inspection and regular environmental management meetings.
5
Waste Management
In accordance with the Manual,
the waste generated from construction activities was audited once per week to
determine if wastes are being managed in accordance with the Waste Management
Plan (WMP) prepared for the Project, contract-specific WMP, and any statutory
and contractual requirements. All aspects of waste management including waste
generation, storage, transportation and disposal were assessed during the
audits.
5.1
Action and Limit Levels
The Action and Limit Levels of
the construction waste are provided in Table 5.1.
Table 5.1: Action and
Limit Levels for Construction Waste
|
Monitoring Stations |
Action Level |
Limit Level |
|
Construction Area |
When one valid documented complaint is received |
Non-compliance of the WMP, contract-specific WMPs, any statutory and contractual requirements |
5.2
Waste Management Status
Weekly monitoring on all works
contracts were carried out by the ET to check and monitor the implementation of
proper waste management practices during the construction phase.
Recommendations made included
provision and maintenance of proper chemical waste storage area, as well as
handling, segregation, and regular disposal of general refuse. The contractors
have taken actions to implement the recommended measures. Waste management
audits were carried out by ET according to the requirement of the Waste
Management Plan, Updated EM&A Manual and the implementation schedule of the
waste management mitigation measures in Appendix A.
Based on updated contractors’
information, construction waste generated in the reporting period is summarised
in Table 5.2.
The ET and IEC have carried out site audits
regularly and reviewed the trip ticket system. Dedicated areas for sorting of
materials are established on site. Recyclable materials such as steel bar,
metal strip, aluminium, paper and plastic are sorted on-site and transported off-site
for recycling during this reporting period.
Table 5.2: Construction Waste
Statistics
|
|
C&D Material Stockpiled for Reuse or Recycle(1) (m3) |
C&D Material Reused in the Project (m3) |
C&D Material Reused in other Projects (m3) |
C&D Material Transferred to Public Fill (m3) |
Chemical Waste (kg) |
Chemical Waste (l) |
General Refuse (tonne) |
|
|
June 2023(2) |
45 |
9,019* |
4,462 |
4,750 |
0 |
0 |
3,216 |
|
|
July 2023(3) |
848 |
2,627 |
1,301 |
5,319 |
0 |
0 |
3,304 |
|
|
Notes: (1) C&D refers to Construction and Demolition. (2) Updated figure for the previous month is reported and marked with an asterisk(*). Updated figures for earlier months will be reported in the forthcoming Quarterly and Annual EM&A reports. (3) The data was based on the information provided by contractors up to the submission date of this Monthly EM&A Report, and might be updated in the forthcoming Monthly EM&A Report. |
||||||||
There were no complaints,
non-compliance of the WMP, contract-specific WMPs,
statutory and contractual requirements that triggered Action and Limit Levels
in the reporting period.
5.3
Marine Sediment Management
Marine sediment is managed
according to the EIA Report, Updated EM&A Manual, Waste Management Plan and
the proposal of Further Development on Treatment Level / Details and the Reuse
Mode for Marine Sediment (hereinafter referred to as “Further Development
Proposal”) of the Project. The sampling process, storage conditions of the
excavated marine sediment, treatment process, final backfilling location as
well as associated records were inspected and checked by ET and verified by IEC
to ensure they were in compliance with the requirements as stipulated in the
Waste Management Plan and Further Development Proposal.
Backfilling works for treated
marine sediment were conducted during the reporting period. The details of the
marine sediment sampling, treatment and backfilling can be referred to Annual
EM&A Report No.7.
6
Chinese White Dolphin Monitoring
In accordance with the Manual,
CWD monitoring by small vessel line-transect survey supplemented by land-based
theodolite tracking survey and passive acoustic monitoring should be conducted
during construction phase.
The small vessel line-transect
survey should be conducted at a frequency of two full surveys per month, while
land-based theodolite tracking survey should be conducted at a frequency of one
day per month per station at Sha Chau (SC) and Lung Kwu
Chau (LKC) during the construction phase as stipulated in the Manual.
6.1
Action and Limit Levels
The Action and Limit Levels for
CWD monitoring were formulated by the action response approach using the
running quarterly dolphin encounter rates STG and ANI derived from the baseline
monitoring data, as presented in the CWD Baseline Monitoring Report. The
derived values of Action and Limit Levels for CWD monitoring were summarised in
Table 6.1.
Table
6.1: Derived Values of Action and Limit Levels for Chinese White Dolphin
Monitoring
|
|
NEL, NWL, AW, WL and SWL as a Whole |
|
Action Level(3) |
Running quarterly(1) STG < 1.86 & ANI < 9.35 |
|
Limit Level(3) |
Two consecutive running quarterly(2) (3-month) STG < 1.86 & ANI < 9.35 |
|
Notes: (referring to the baseline monitoring report) (1) Action Level – running quarterly encounter rates STG & ANI of this month will be calculated from the reporting period and the two preceding survey months. (2) Limit Level – two consecutive running quarters mean both the running quarterly encounter rates of the preceding month and the running quarterly encounter rates of this month. (3) Action Level and/or Limit Level will be triggered if both STG and ANI fall below the criteria. |
|
6.2
CWD Monitoring Transects and Stations
6.2.1
Small Vessel Line-transect Survey
Small vessel line-transect
surveys were conducted along the transects covering Northeast Lantau (NEL),
Northwest Lantau (NWL), Airport West (AW), West Lantau (WL) and Southwest
Lantau (SWL) areas as proposed in the Manual, which are consistent with the
Agriculture, Fisheries and Conservation Department (AFCD) long-term monitoring
programme (except the addition of AW). The AW transect has not been previously
surveyed in the AFCD programme due to the restrictions of HKIA Approach Area,
nevertheless, this transect was established during the EIA of the 3RS Project
and refined in the Manual with the aim to collect project specific baseline
information within the HKIA Approach Area to fill the data gap that was not
covered by the AFCD programme. This also provided a larger sample size for
estimating the density, abundance and patterns of movements in the broader
study area of the project.
The planned vessel survey
transect lines following the waypoints set for construction phase monitoring as
proposed in the Manual are depicted in Figure 6.1 with the
waypoint coordinates of all transect lines given in Table
6.2, which are subject to on-site refinement based on the actual survey
conditions and constraints.
Table 6.2:
Coordinates of Transect Lines in NEL, NWL, AW, WL and SWL Survey Areas
|
Waypoint |
Easting |
Northing |
Waypoint |
Easting |
Northing |
|
NEL |
|||||
|
1S |
813525 |
820900 |
6N |
818568 |
824433 |
|
1N |
813525 |
824657 |
7S |
819532 |
821420 |
|
2S |
814556 |
818449 |
7N |
819532 |
824209 |
|
2N |
814559 |
824768 |
8S |
820451 |
822125 |
|
3S |
815542 |
818807 |
8N |
820451 |
823671 |
|
3N |
815542 |
824882 |
9S |
821504 |
822371 |
|
4S |
816506 |
819480 |
9N |
821504 |
823761 |
|
4N |
816506 |
824859 |
10S |
822513 |
823268 |
|
5S |
817537 |
820220 |
10N |
822513 |
824321 |
|
5N |
817537 |
824613 |
11S |
823477 |
823402 |
|
6S |
818568 |
820735 |
11N |
823477 |
824613 |
|
NWL |
|||||
|
1S |
804671 |
814577 |
5S |
808504 |
821735 |
|
1N |
804671 |
831404 |
5N |
808504 |
828602 |
|
2Sb |
805475 |
815457 |
6S |
809490 |
822075 |
|
2Nb |
805476 |
818571 |
6N |
809490 |
825352 |
|
2Sa |
805476 |
820770 |
7S |
810499 |
822323 |
|
2Na |
805476 |
830562 |
7N |
810499 |
824613 |
|
3S |
806464 |
821033 |
8S |
811508 |
821839 |
|
3N |
806464 |
829598 |
8N |
811508 |
824254 |
|
4S |
807518 |
821395 |
9S |
812516 |
821356 |
|
4N |
807518 |
829230 |
9N |
812516 |
824254 |
|
AW |
|||||
|
1W |
804733 |
818205 |
2W |
805045 |
816912 |
|
1E |
806708 |
818017 |
2E |
805960 |
816633 |
|
WL |
|||||
|
1W |
800600 |
805450 |
7W |
800400 |
811450 |
|
1E |
801760 |
805450 |
7E |
802400 |
811450 |
|
2W |
800300 |
806450 |
8W |
800800 |
812450 |
|
2E |
801750 |
806450 |
8E |
802900 |
812450 |
|
3W |
799600 |
807450 |
9W |
801500 |
813550 |
|
3E |
801500 |
807450 |
9E |
803120 |
813550 |
|
4W |
799400 |
808450 |
10W |
801880 |
814500 |
|
4E |
801430 |
808450 |
10E |
803700 |
814500 |
|
5W |
799500 |
809450 |
11W |
802860 |
815500 |
|
5E |
801300 |
809450 |
12S/11E |
803750 |
815500 |
|
6W |
799800 |
810450 |
12N |
803750 |
818500 |
|
6E |
801400 |
810450 |
|
|
|
|
SWL |
|||||
|
1S |
802494 |
803961 |
6S |
807467 |
801137 |
|
1N |
802494 |
806174 |
6N |
807467 |
808458 |
|
2S |
803489 |
803280 |
7S |
808553 |
800329 |
|
2N |
803489 |
806720 |
7N |
808553 |
807377 |
|
3S |
804484 |
802509 |
8S |
809547 |
800338 |
|
3N |
804484 |
807048 |
8N |
809547 |
807396 |
|
4S |
805478 |
802105 |
9S |
810542 |
800423 |
|
4N |
805478 |
807556 |
9N |
810542 |
807462 |
|
5S |
806473 |
801250 |
10S |
811446 |
801335 |
|
5N |
806473 |
808458 |
10N |
811446 |
809436 |
6.2.2
Land-based Theodolite Tracking Survey
Land-based theodolite tracking
survey stations were set up at two locations, one facing east/south/west on the
southern slopes of Sha Chau (SC), and the other facing
north/northeast/northwest at Lung Kwu Chau (LKC). The
stations (D and E) are depicted in Figure 6.2 and shown in
Table 6.3 with position coordinates, height of
station and approximate distance of consistent theodolite tracking capabilities
for CWD.
Table 6.3: Land-based
Theodolite Survey Station Details
|
Stations |
Location |
Geographical Coordinates |
Station Height (m) |
Approximate Tracking Distance (km) |
|
D |
Sha Chau (SC) |
22° 20’ 43.5” N 113° 53’ 24.66” E |
45.66 |
2 |
|
E |
Lung Kwu Chau (LKC) |
22° 22’ 44.83” N 113° 53’ 0.2” E |
70.40 |
3 |
6.3
CWD Monitoring Methodology
6.3.1
Small Vessel Line-transect Survey
Small vessel line-transect
surveys provided data for density and abundance estimation and other
assessments using distance-sampling methodologies, specifically, line-transect
methods.
The surveys involved small vessel
line-transect data collection and have been designed to be similar to, and
consistent with, previous surveys for the AFCD for their long-term monitoring
of small cetaceans in Hong Kong. The survey was designed to provide systematic,
quantitative measurements of density, abundance and habitat use.
As mentioned in Section 6.2.1,
the transects covered NEL, NWL, AW, WL and SWL areas as proposed in the Manual,
which are consistent with the AFCD long-term monitoring programme (except AW).
There are two types of transect lines:
● Primary transect lines: the parallel
and zigzag transect lines as shown in Figure 6.1; and
● Secondary transect lines: transect
lines connecting between the primary transect lines and going around islands.
All data collected on both
primary and secondary transect lines were used for analysis of sighting
distribution, group size, activities including association with fishing boat,
and mother-calf pairs. Only on-effort data collected under favourable
conditions of Beaufort 0-3 and visibility of approximately 1200 m or beyond
were used for analysis of the CWD encounter rates.
A 15-20m vessel with a flying
bridge observation platform about 4 to 5m above water level and unobstructed
forward view, and a team of three to four observers were deployed to undertake
the surveys. Two observers were on search effort at all times when
following the transect lines with a constant speed of 7 to 8 knots (i.e. 13 to
15 km per hour), one using 7X handheld binoculars and the other using unaided
eyes and recording data.
During on-effort survey periods,
the survey team recorded effort data including time, position (waypoints),
weather conditions (Beaufort sea state and visibility) and distance travelled
in each series with assistance of a handheld GPS device. The GPS device also
continuously and automatically logged data including time, position (latitude
and longitude) and vessel speed throughout the entire survey.
When CWDs were seen, the survey
team was taken off-effort, the dolphins were approached and photographed for
photo-ID information (using a Canon 7D [or similar] camera and long 300 mm+
telephoto lens), then followed until they were lost from view. At that
point, the boat returned (off effort) to the survey line at the closest point
after obtaining photo records of the dolphin group and began to survey on
effort again.
Focal follows of dolphins would
be used for providing supplementary information only where practicable (i.e.
when individual dolphins or small stable groups of dolphins with at least one
member that could be readily identifiable with unaided eyes during observations
and weather conditions are favourable). These would involve the boat following
(at an appropriate distance to minimise disturbance) an identifiable individual
dolphin for an extended period of time, and collecting detailed data on its
location, behaviour, response to vessels, and associates.
6.3.2
Photo Identification
CWDs can be identified by their unique features
like presence of scratches, nick marks, cuts, wounds, deformities of
their dorsal fin and distinguished colouration and spotting patterns.
When CWDs were observed, the survey team was
taken off-effort, the dolphins were approached and photographed for
photo-ID information (using a Canon 7D [or similar] camera and long 300 mm+
telephoto lens). The survey team attempted to photograph both sides of every
single dolphin in the group as the colouration and spotting pattern on both
sides may not be identical. The photos were taken at the highest available
resolution and stored on Compact Flash memory cards for transferring into a
computer.
All photos taken were initially
examined to sort out those containing potentially identifiable individuals.
These sorted-out images would then be examined in detail and compared to the
CWD photo-identification catalogue established for 3RS Project during the
baseline monitoring stage.
6.3.3
Land-based Theodolite Tracking Survey
Land-based theodolite tracking survey obtains
fine-scale information on the time of day and movement patterns of the
CWDs. A digital theodolite (Sokkia/Sokkisha
Model DT5 or similar equipment) with 30-power
magnification and 5-s precision was used to obtain the vertical and horizontal angle of each
dolphin and vessel position. Angles
were converted to geographic coordinates (latitude and longitude) and
data were recorded using Pythagoras software, Version 1.2. This
method delivers precise positions of multiple
spatially distant targets in a short period of time. The
technique is fully non-invasive, and allows for time and cost-effective
descriptions of dolphin habitat use patterns at all times of daylight.
Three surveyors (one theodolite
operator, one computer operator, and one observer) were involved in each
survey. Observers searched for dolphins using unaided eyes and handheld
binoculars (7X50). Theodolite tracking sessions were initiated whenever an
individual CWD or group of CWDs was located. Where possible, a
distinguishable individual was selected, based on colouration, within the
group. The focal individual was then continuously tracked via the
theodolite, with a position recorded each time the dolphin surfaced. In case an
individual could not be positively distinguished from other members, the group
was tracked by recording positions based on a central point within the group
whenever the CWD surfaced. Tracking continued until animals were lost from
view; moved beyond the range of reliable visibility (>1-3km, depending on
station height); or environmental conditions obstructed visibility (e.g.,
intense haze, Beaufort sea state >4, or sunset), at which time the research
effort was terminated. In addition to the tracking of CWD, all vessels
that moved within 2-3km of the station were tracked, with effort made to obtain
at least two positions for each vessel.
Theodolite tracking included
focal follows of CWD groups and vessels. Priority was given to tracking
individual or groups of CWD. The survey team also attempted to track all
vessels moving within 1 km of the focal CWD.
6.4
Monitoring Results and Observations
6.4.1
Small Vessel Line-transect Survey
Survey
Effort
Within this reporting period, two complete sets
of small vessel line-transect surveys were conducted on the 4, 6, 7, 10, 11,
12, 13 and 14 July 2023 covering all transects in NEL, NWL, AW, WL and SWL
survey areas for twice.
A total of around 450.01 km of survey effort
was collected from these surveys and around 448.98 km of these survey effort was being conducted under favourable weather condition (i.e. Beaufort Sea State 3 or
below with favourable visibility). Details of the
survey effort are given in Appendix
C.
Sighting Distribution
In the current reporting period, 12 sightings
with 40 dolphins were sighted. All these sightings were on-effort records under
favourable weather condition (i.e. Beaufort Sea State
3 or below with favourable visibility). Details of
dolphin sightings are presented in Appendix C.
Distribution of all CWD sightings recorded in
the current reporting period is illustrated in Figure
6.3. In WL, CWD
sightings were scattered at the waters between Yi O and Fan Lau. In SWL, CWD
sightings were recorded at the waters north off Siu A Chau and at the water
between Fan Lau and Soko Islands respectively. There
was no CWD sighting recorded in NWL and NEL survey areas during the reporting
period.
Figure 6.3: Sightings Distribution of Chinese
White Dolphins
Remarks: (1)
Please note that there are 12 pink circles on the map indicating the sighting
locations of CWDs. Some of them were very close to each other and therefore may
appear overlapped on this distribution map. (2) Marine park excludes land area
and the landward boundary generally follows the high water mark along the
coastline.
Encounter Rate
Two types of dolphin encounter rates were
calculated based on the vessel survey data. They included the number of dolphin
sightings per 100 km survey effort (STG) and total number of dolphins per 100
km survey effort (ANI) in the whole survey area (i.e. NEL, NWL, AW, WL and
SWL). In the calculation of dolphin encounter rates, only survey data collected
under favourable weather condition (i.e. Beaufort Sea
State 3 or below with favourable visibility) were
used. The formulae used for calculation of the encounter rates are shown below:
Encounter
Rate by Number of Dolphin Sightings (STG)
Encounter
Rate by Number of Dolphins (ANI)
(Notes: Only data
collected under Beaufort 3 or below condition were used)
In this reporting period, a total of around
448.98 km of survey effort was conducted under Beaufort Sea State 3 or below
with favourable visibility, whilst a total number of
12 on-effort sightings with 40 dolphins were sighted under such condition.
Calculation of the encounter rates for the month are shown in Appendix C.
For the running quarter of the reporting period
(i.e., from May to July 2023), a total of around 1324.49 km of survey effort
was conducted under Beaufort Sea State 3 or below with favourable
visibility, whilst a total number of 44 on-effort sightings and a total number
of 138 dolphins from on-effort sightings were obtained under such condition.
Calculation of the running quarterly encounter rates are shown in Appendix C.
The STG and ANI of CWD in the whole survey area
(i.e. NEL, NWL, AW, WL and SWL) during the reporting
period and during the running quarter are presented in Table
6.4 below and compared with the Action Level. Both the running
quarterly encounter rate STG and ANI remain above the Action Level, and the
Action Level is not triggered.
Table
6.4: Comparison of CWD Encounter Rates of the Whole Survey Area with
Action Levels
|
|
Encounter Rate (STG) |
Encounter Rate (ANI) |
|
July 2023 |
2.67 |
8.91 |
|
Running Quarter from May to July 2023(1) |
3.32 |
10.42 |
|
Action Level |
Running quarterly(1) STG < 1.86 & ANI < 9.35 |
|
|
Note: (1) Running quarterly encounter rates STG & ANI were calculated from data collected in the reporting period and the two preceding survey months, containing six sets of transect surveys for all monitoring areas. Action Level will be triggered if both STG and ANI fall below the criteria. |
||
Group Size
In the current reporting period, 12 groups of
40 dolphins in total were sighted, and the average group size of CWDs was 3.33
dolphins per group. The majority of the CWD sightings was having small group
size (i.e. 1-2 dolphins). There was a CWD sighting with large group size (i.e.
10 or more dolphins) recorded in WL in the current reporting period.
Activities and Association with
Fishing Boats
There were three CWD sightings
recorded engaging in foraging activities in the current reporting period in WL
and SWL survey areas. No sighting was observed in association with
fishing boats.
Mother-calf Pair
In this reporting period, there were two
sightings with the presences of mother-and-unspotted juvenile pair and
mother-and-unspotted calf pair. These sightings were all recorded in WL.
6.4.2
Photo
Identification
In the current reporting period, a total number
of 22 different CWD individuals were identified for totally 27 times. A summary
of photo identification works is presented in Table 6.5.
Representative photos of these individuals are given in Appendix C.
Table
6.5: Summary of Photo Identification
|
Individual ID |
Date of Sighting (dd-mmm-yy) |
Sighting Group No. |
Area |
|
Individual ID |
Date of Sighting (dd-mmm-yy) |
Sighting Group No. |
Area |
|
NLMM055 |
07-Jul-23 |
3 |
WL |
|
WLMM007 |
07-Jul-23 |
3 |
WL |
|
SLMM007 |
07-Jul-23 |
3 |
WL |
|
|
11-Jul-23 |
3 |
WL |
|
SLMM010 |
11-Jul-23 |
3 |
WL |
|
WLMM028 |
07-Jul-23 |
3 |
WL |
|
SLMM014 |
13-Jul-23 |
2 |
SWL |
|
|
11-Jul-23 |
5 |
WL |
|
SLMM023 |
07-Jul-23 |
3 |
WL |
|
WLMM030 |
07-Jul-23 |
3 |
WL |
|
|
11-Jul-23 |
1 |
WL |
|
WLMM067 |
11-Jul-23 |
3 |
WL |
|
SLMM037 |
11-Jul-23 |
6 |
WL |
|
WLMM079 |
07-Jul-23 |
3 |
WL |
|
SLMM044 |
11-Jul-23 |
1 |
WL |
|
WLMM080 |
11-Jul-23 |
1 |
WL |
|
|
12-Jul-23 |
4 |
SWL |
|
WLMM102 |
07-Jul-23 |
3 |
WL |
|
SLMM052 |
07-Jul-23 |
3 |
WL |
|
WLMM147 |
07-Jul-23 |
3 |
WL |
|
|
11-Jul-23 |
3 |
WL |
|
WLMM160 |
11-Jul-23 |
5 |
WL |
|
SLMM073 |
07-Jul-23 |
3 |
WL |
|
WLMM167 |
07-Jul-23 |
3 |
WL |
|
WLMM004 |
07-Jul-23 |
3 |
WL |
|
WLMM189 |
11-Jul-23 |
5 |
WL |
|
WLMM005 |
07-Jul-23 |
3 |
WL |
|
|
|
|
|
6.4.3
Land-based Theodolite Tracking Survey
Survey
Effort
Land-based theodolite tracking surveys were
conducted at LKC on 20 July 2023 and at SC on 21 July 2023, with a total of two
days of land-based theodolite tracking survey effort accomplished in this
reporting period. One group of CWD were tracked off LKC Station while no CWD
were tracked off SC station during the reporting period. Information of survey
effort and CWD groups are presented in Table 6.6.
Details of the survey effort are presented in Appendix C. The first
sighting locations of CWD groups tracked at LKC station during land-based
theodolite tracking survey in July 2023 were depicted in Figure
6.4
Table
6.6: Summary of Survey Effort and CWD Group of Land-based Theodolite
Tracking
|
Land-based Station |
No. of Survey Sessions |
Survey Effort (hh:mm) |
No. of CWD Groups Sighted |
CWD Group Sighting per Survey Hour |
|
Lung Kwu Chau (LKC) |
1 |
6:00 |
1 |
0.17 |
|
Sha Chau (SC) |
1 |
6:00 |
0 |
0 |
|
TOTAL |
2 |
12:00 |
1 |
0.08 |
Figure 6.4:
Plots of First Sightings of All CWD Groups obtained from Land-based
Stations
6.5
Progress
Update on Passive Acoustic Monitoring
Underwater acoustic monitoring
using Passive Acoustic Monitoring (PAM) should be undertaken during land
formation related construction works. Both C-POD and F-POD are considered as
effective PAM devices in detecting CWD occurrence, and F-POD was the main PAM
device deployed where feasible. During this reporting period, the F-POD was
remained underwater and positioned at south of Sha Chau Island inside the
SCLKCMP (Figure 6.5).
The F-POD was last retrieved on 23 May 2023 and the next retrieval and re-deployment
is scheduled in early August. Acoustic data would be reviewed to give an
indication of CWD occurrence patterns and anthropogenic noise information.
Analysis would involve use of proprietary software for objective automated data
analyses and experienced analysts to perform visual validation for assessment
of dolphin detection. As the period of data collection and analysis takes about
four months, PAM results could not be reported in monthly intervals but report
for supplementing the annual CWD monitoring analysis.
6.6
Site Audit for CWD-related Mitigation Measures
During the reporting period, two
dolphin observation stations and teams of at least two dolphin observers were
deployed by the contractor for continuous monitoring of the DEZ for seawall
construction works in accordance with the DEZ Plan. No trainings for the
proposed dolphin observers on the implementation of DEZ monitoring were
provided by the ET during this reporting period, with a cumulative total of 705
individuals being trained and the training records kept by the ET. From the
contractors’ records, no dolphin or other marine mammals were observed during
this reporting month. These contractors’ records were also audited by the ET
during site inspection.
Audits of SkyPier
high speed ferries route diversion and speed control and construction vessel
management are presented in Section 7.4 and Section 7.5
respectively.
6.7
Timing of reporting CWD Monitoring Results
Detailed analysis of CWD
monitoring results collected by small vessel line-transect survey will be
provided in future quarterly reports. Detailed analysis of CWD monitoring
results collected by land-based theodolite tracking survey and PAM will be
provided in future annual reports after a larger sample size of data has been
collected.
6.8
Summary of CWD Monitoring
Monitoring of CWD was conducted with two complete sets of small vessel line-transect surveys and two days of land-based theodolite tracking survey effort. The running quarterly encounter rates STG and ANI in the reporting period did not trigger the Action Level for CWD monitoring.
7
Environmental Site Inspection and
Audit
7.1
Environmental Site Inspection
Site
inspections of the construction works to audit the implementation of proper
environmental pollution control and mitigation measures for the Project were
conducted by ET and IEC on a weekly and bi-weekly basis, respectively. The
weekly site inspection schedule of the construction works is provided in Appendix B. Besides,
ad-hoc site inspections were also conducted by ET and IEC if environmental
problems were identified, or subsequent to receipt of an environmental
complaint, or as part of the investigation work. These site inspections
provided a direct means to reinforce the specified environmental protection
requirements and pollution control measures in construction sites.
During site inspections,
environmental situation, status of implementation of pollution control and mitigation
measures were observed. Environmental documents and site records, including
waste disposal record, maintenance record of environmental equipment, and
relevant environmental permit and licences, were also checked on site. Observations were recorded in the
site inspection checklist and passed to the contractor together with the
recommended mitigation measures where necessary in order to advise
contractors on environmental improvement, awareness and on-site enhancement
measures. The
observations were made with reference to the following information during the
site inspections:
·
The EIA and EM&A requirements;
·
Relevant environmental protection laws, guidelines, and practice notes;
·
The EP conditions and other submissions under the EP;
·
Monitoring results of EM&A programme;
·
Works progress and programme;
·
Proposal of individual works;
·
Contract specifications on environmental protection; and
·
Previous site inspection results.
Good site practices were observed
in site inspections during the reporting period. Advice was given when
necessary to ensure the construction workforce were familiar with relevant
procedures, and to maintain good environmental performance on site. Regular
toolbox talks on environmental issues were organised for the construction
workforce by the contractors to ensure understanding and proper implementation
of environmental protection and pollution control mitigation measures.
A
summary of implementation status of the environmental mitigation measures for
the construction phase of the Project during the reporting period is provided
in Appendix A.
7.2
Landscape and Visual Mitigation Measures
Implementation of applicable
landscape and visual mitigation measures (reference to the environmental
protection measures CM1 – CM10 and OM7 in Appendix A) was monitored
in accordance with the Manual. All measures undertaken by both the contractor
and the landscape contractor during the construction phase and first year of
the operation phase shall be audited by a landscape architect, as a member of
the ET, on a regular basis to ensure compliance with the intended aims of the
measures. Site inspections shall be undertaken at least once every two months
during the operation phase.
The
implementation status of the environmental protection measures is summarized
below in Table 7.1. Examples of landscape and
visual mitigation measures are shown in Table 7.2.
The monitoring programme for detailed design, construction, establishment works
and long term management (10 years) stages is
presented in Table 7.3. Event and Action Plan
for Landscape and Visual impacts is stated in Table 7.4.
Table 7.1: Landscape
and Visual – Construction Phase Audit Summary
|
Landscape and Visual Mitigation Measures during Construction |
Implementation Status |
Relevant Contract(s) in the Reporting Period |
|
CM1- The construction area and contractor’s temporary works areas shall be minimised to avoid impacts on adjacent landscape. |
The implementation of mitigation measures was checked by ET during weekly site inspection and reported by the Contractors during the monthly Environmental Management Meetings. Implementation of the measures CM5, CM6 and CM7 by Contractors was observed. |
All works contracts |
|
CM2 – Reduction of construction period to practical minimum |
||
|
CM3 – Phasing of the construction stage to reduce visual impacts during the construction phase. |
||
|
CM4 – Construction traffic (land and sea) including construction plants, construction vessels and barges shall be kept to a practical minimum. |
||
|
CM5 – Erection of decorative mesh screens or construction hoardings around works areas in visually unobtrusive colours. |
||
|
CM6 – Avoidance of excessive height and bulk of site buildings and structures |
||
|
CM7 – Control of night-time lighting by hooding all lights and through minimisation of night working periods |
||
|
CM8 – All existing trees shall be carefully protected during construction. Detailed Tree Protection Specification shall be provided in the Contract Specification. Under this specification, the Contractor shall be required to submit, for approval, a detailed working method statement for the protection of trees prior to undertaking any works adjacent to all retained trees, including trees in contractor’s works areas |
Tree Protection Specifications were provided in the relevant Contract Specifications respectively for implementation by the Contractors under the Project.
The Contractors’ performance on the implementation of the tree maintenance and protection measures were observed and checked by the ET weekly during construction period. |
3302, 3508, 3801
|
|
CM9 – Trees unavoidably affected by the works shall be transplanted where practical. A detailed Tree Transplanting Specification shall be provided in the Contract Specification, if applicable. Sufficient time for necessary tree root and crown preparation periods shall be allowed in the project programme |
Tree Transplanting Specifications were provided in the relevant Contract Specifications respectively for implementation by the Contractors under the Project where trees would unavoidably be affected by the construction works.
The Contractors were required to submit Method Statements for tree transplanting prior to the transplanting works. Tree inspections were conducted by ET to check the tree transplanting works implemented by the Contractors on site.
The Contractors’ performance on the implementation of trees maintenance and protection measures on transplanted trees were observed and checked by the ET bi-monthly during the 12-month establishment period after the completion of each batch of transplanting works.
Long term management of the transplanted trees was currently monitored by ET annually. |
3508, 3801
|
|
SCM10 – Land formation works shall be followed with advanced hydroseeding around taxiways and runways as soon as practical |
The advanced hydroseeding works around taxiways and runways were partially completed at this stage and would resume in next phase.
|
To be implemented
|
|
OM7- Compensatory tree planting for all felled trees shall be provided to the satisfaction of relevant Government departments. Required numbers and locations of compensatory trees shall be determined and agreed separately with Government during the Tree Felling Application process under the relevant technical circulars.(1) |
The first batch of compensatory tree was planted and the first bi-monthly site inspection for the 12-month establishment period was undertaken in June 2023. A photo showing the general view of compensatory planting was shown in Table 7.2. Next inspection will be conducted in August 2023. |
3RS Project contracts |
(1) AAHK is the management and
maintenance agency of the compensatory trees. Tree Felling Application is not
required for 3RS project.
Table 7.2: Examples of Landscape and Visual Mitigation
Measures in the Reporting Periods
|
|
|
|
|
Erection of site hoardings around works area in unobtrusive colours (CM5) |
Avoidance of excessive height and bulk of site buildings (CM6) |
Control of night-time lighting using light hooding and minimisation of night working period (CM7) |
|
|
|
|
|
General view of tree protection zone for retained tree (CM8) |
General view of transplanted trees (CM9) |
General view of compensatory tree planting (OM7) |
In accordance with the Updated
EM&A Manual, all existing trees shall be protected carefully during
construction. Trees unavoidably affected by the works shall be transplanted
where practical. In this reporting period, the cumulative total number of retained
trees and transplanted trees under the Project remained unchanged (i.e. 46 and
26 respectively) comparing to the previous reporting
period.
Details of the retained trees,
transplanted trees and to-be-transplanted trees under the Project are
summarized in Table 7.5. Details of the retained
trees are to be discussed in the Quarterly EM&A reports.
Table 7.3: Monitoring Programme for
Landscape and Visual
|
Stage |
Monitoring Task |
Monitoring Report |
Form of Approval |
Frequency |
|
Detailed Design |
Checking of design works against the recommendations of the landscape and visual impact assessments within the EIA shall be undertaken during detailed design and tender stage, to ensure that they fulfil the intention of the mitigation measures. Any changes to the design, including design changes on site shall also be checked. |
Report by AAHK / PM confirming that the design conforms to requirements of EP. |
Approved by Client |
At the end of the Detailed Design Phase |
|
Construction |
Checking of the contractor’s operations during the construction period. |
Report on Contractor's compliance, by ET |
Counter signature of report by IEC |
Weekly |
|
Establishment Works |
Checking of the planting works during the twelve-month Establishment Period after completion of each batch of transplanting works. |
Report on Contractor's compliance, by ET |
Counter signature of report by IEC |
Every two months |
|
Long Term Management (10 year) |
Monitoring of the long-term management of the planting works in the period up to 10 years after completion of each batch of transplanting works. |
Report on compliance by ET or maintenance Agency as appropriate |
Counter signature of report by Management Agency |
Annually |
Table 7.4: Event and Action Plan for Landscape and Visual
|
Event Action Level |
|
Action |
||||||
|
|
|
ET |
IEC |
AAHK / PM |
Contractor |
|||
|
Design Check |
|
Check final design conforms to the requirements of EP and prepare
report. |
Check report. Recommend remedial design if necessary. |
Undertake remedial design if necessary. |
|
|||
|
Non-conformity on one
occasion |
|
Identify source. Inform IEC and
AAHK / PM. Discuss remedial
actions with IEC, AAHK / PM and Contractor. Monitor remedial actions until rectification has
been completed. |
Check report. Check Contractor’s
working method. Discuss with ET
and Contractor on possible remedial measures. Advise AAHK / PM
on effectiveness of proposed remedial measures. Check implementation of remedial measures. |
Notify
Contractor. Ensure remedial measures are properly
implemented. |
Amend working
methods to prevent recurrence of non-conformity. Rectify damage and undertake additional action
necessary. |
|||
|
Repeated Non-conformity |
|
Identify source. Inform IEC and AAHK / PM. Increase monitoring frequency. Discuss remedial actions with IEC, AAHK / PM and Contractor. Monitor remedial actions until rectification has
been completed. If non-conformity stops, cease additional monitoring. |
Check monitoring report. Check Contractor’s working method. Discuss with ET and Contractor on possible
remedial measures. Advise AAHK / PM on effectiveness of proposed
remedial measures. Supervise implementation of remedial measures. |
Notify Contractor. Ensure remedial measures area properly
implemented. |
Amend working methods to prevent recurrence of
non-conformity. Rectify damage and undertake additional action necessary. |
|||
Table 7.5: Summary of the Number of
Retained, Transplanted and To-be-transplanted Trees in the Reporting Period
|
Existing |
|
|
|
|
|
Contract |
Retain (nos.) |
Transplanted (nos.) |
To-be-transplanted (nos.) |
|
|
Establishment Period |
Maintenance Period |
|
||
|
3302 |
9 |
0 |
0 |
0 |
|
3503 |
0 |
0 |
9 |
0 |
|
3508 |
34 |
0 |
12 |
0 |
|
3602 |
0 |
0 |
0 |
0 |
|
3801 |
3 |
0 |
5 |
0 |
|
Grand Total |
46 |
0 |
26 |
0 |
Summary of the updated transplanted trees and photos are
presented in Table 7.6.
Table 7.6: Summary of
the Transplanted Trees Updated in the Reporting Period
|
Tree ID |
Transplant Date |
Management Stage |
Management Agency |
Remarks |
|
CT276 |
3 May 2018
|
Long Term Management period Jun 2019 – May 2028 |
Southern Landside Petrol Filling Station |
Establishment Period was completed. Next inspection will be conducted in February 2024. Photos of the last inspection in February 2023 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No. 86. |
|
CT1253 |
4 May 2018
|
Long Term Management period Jun 2019 – May 2028 |
Southern Landside Petrol Filling Station |
|
|
T835 |
22 Jan 2020 |
Long Term Management period Feb 2021 – Jan 2030 |
AAHK |
Establishment Period was completed. Next inspection will be conducted in February 2024. Photos of the last inspection in February 2023 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No. 86. |
|
T836 |
13 Dec 2019 |
Long Term Management period Feb 2021 – Jan 2030 |
AAHK
|
|
|
T838 |
22 Jan 2020 |
Long Term Management period Feb 2021 – Jan 2030 |
AAHK
|
|
|
T812 |
21 Dec 2020 |
Long Term Management period Jan 2022 – Dec 2031 |
AAHK
|
Establishment Period was completed. Next inspection will be conducted in December 2023. Photos of the last inspection in December 2022 can be referred to Table 7.7 of the Construction Phase Monthly EM&A Report No.84. |
|
T814 |
20 Dec 2020 |
Long Term Management period Jan 2022 – Dec 2031 |
AAHK
|
|
|
T815 |
15 Dec 2020 |
Long Term Management period Jan 2022 – Dec 2031 |
AAHK
|
|
|
T829 |
18 Dec 2020 |
Long Term Management period Jan 2022 – Dec 2031 |
AAHK
|
|
|
T830 |
14 Dec 2020 |
Long Term Management period Jan 2022 – Dec 2031 |
AAHK
|
|
|
T831 |
19 Dec 2020 |
Long Term Management period Jan 2022 – Dec 2031 |
AAHK
|
|
|
T1493 |
6 Jul 2021
|
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
Establishment Period was completed. Next inspection will be conducted in July 2024. Photos of the last inspection in July 2023 were shown in Table 7.7. |
|
T1494 |
6 Jul 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1495 |
10 Jul 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1496 |
5 Jul 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1497 |
5 Jul 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1498 |
29 Jun 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1499 |
29 Jun 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1500 |
30 Jun 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1501 |
30 Jun 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1502 |
5 Jul 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1503 |
6 Jul 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
T1504 |
24 Jun 2021 |
Long Term Management period Aug 2022 – Jul 2031 |
Contract 3508 |
|
|
CT1194 |
4 May 2018 |
Long Term Management period Jun 2019 – May 2028 |
Southern Landside Petrol Filling Station |
Establishment Period was completed. Uprooted and collapsed due to Typhoon Higos on 18 August 2020. Tree removal was conducted as recommended by tree specialist of the contractor of Southern Landside Petrol Filing Station. |
|
CT1794 |
3 May 2018 |
Long Term Management period Jun 2019 – May 2028 |
AsiaWorld-Expo |
Establishment Period was completed. The tree within the land parcel was acquired by the government for construction of emergency hospital to handle COVID19 pandemic at AsiaWorld-Expo. The tree was felled in late 2020. |
|
CT1795 |
3 May 2018 |
Long Term Management period Jun 2019 – May 2028 |
AsiaWorld-Expo |
Establishment Period was completed. The tree within the land parcel was acquired by the government for construction of emergency hospital to handle COVID19 pandemic at AsiaWorld-Expo. The tree was felled in late 2020. |
Table 7.7: Photos of the Existing Transplanted Trees Inspection in this Reporting Month
|
Under 10-year Long-term Management: |
||
|
|
|
|
|
T1493 |
T1494 |
T1495 |
|
|
|
|
|
T1496 |
T1497 |
T1498 |
|
|
|
|
|
T1499 |
T1500 |
T15001 |
|
|
|
|
|
T1502 |
T1503 |
T1504 |
7.3
Land Contamination Assessment
The Supplementary CAP was
submitted to EPD pursuant to EP Condition 2.20. The CARs for Golf Course and T2
Emergency Power Supply Systems (EPSS) were submitted to EPD in accordance with
EP Condition 1.9 and the Supplementary CAP in which no land contamination
issues were identified. EPD issued no further comment for aforesaid CARs.
No leakage was found after the removal of underground fuel pipelines of T2 EPSS
and all required additional photos have been submitted to EPD.
According to the approved
supplementary CAP, there are 3 remaining locations where site re-appraisal /
additional site investigation are proposed. Based on the latest construction
information, there is no development programme for these locations at this
stage. As such, the status of site re-appraisal/ additional site investigation
shall be further updated upon latest development programme is available.
7.4
Audit of SkyPier High Speed
Ferries
The Marine Travel Routes and
Management Plan for High Speed Ferries of SkyPier
(the SkyPier Plan) was submitted to the Advisory
Council on the Environment for comment and subsequently submitted to and
approved by EPD in November 2015 under EP Condition 2.10. The approved SkyPier Plan is available on the dedicated website of the
Project. In the SkyPier Plan, AAHK has committed to
implement the mitigation measure of requiring HSFs of SkyPier
travelling between HKIA and Zhuhai / Macau to start diverting the route with
associated speed control across the area, i.e. Speed Control Zone (SCZ), with
high CWD abundance. The route diversion and speed restriction at the SCZ have
been implemented since 28 December 2015.
Due to the operational needs, the
SkyPier HSF services to/from Zhuhai has been
suspended until further notice. Key audit findings for the SkyPier
HSF travelling to/from Macau against the requirements of the SkyPier Plan during the reporting period are summarised in Table 7.8. The daily movement of all SkyPier HSFs, including those not using the diverted route,
in this reporting period (i.e., 33 to 48 daily movements) were within the
maximum daily cap of 125 daily movements. Status of compliance with the annual
daily average of 99 movements will be further reviewed in the Annual EM&A
Report.
In total, 22 ferry movements
between HKIA SkyPier and Macau were recorded in July
2023 and the data are presented in Appendix G. The time
spent by the SkyPier HSF travelling through the SCZ
in July 2023 was presented in Figure 7.1. It
will take 9.6 minutes to travel through the SCZ when the SkyPier
HSFs adopt the maximum allowable speed of 15 knots within the SCZ. Figure 7.1 shows
that all the SkyPier HSF spent more than 9.6 minutes
to travel through the SCZ.
Figure 7.1: Duration of the SkyPier HSFs travelling
through the SCZ for July 2023
Note: Data above the red line indicated that the time spent
by the SkyPier HSFs travelling through the SCZ is
more than 9.6 minutes, which is in compliance with the SkyPier
Plan.
Table 7.8:
Summary of Key Audit Findings against the SkyPier
Plan
|
Requirements in the SkyPier Plan |
1 to 31 July 2023 |
|
Total number of ferry movements recorded and audited for HSF to/from Macau |
22 |
|
Use diverted route and enter / leave SCZ through Gate Access Points |
0 deviation |
|
Speed control in speed control zone |
The average speed of all HSFs travelling through the SCZ ranged from 10.9 to 13.3 knots. All HSFs had travelled through the SCZ with average speed under 15 knots in compliance with the SkyPier Plan. The time used by HSFs to travel through SCZ is presented in Figure 7.1. |
|
A maximum daily cap of 125 movements for all SkyPier HSFs including those not using diverted route |
33 to 48 daily movements |
7.5
Audit of Construction and Associated Vessels
The updated
MTRMP-CAV was approved by EPD on 31 May 2022 under EP
Condition 2.9. The approved Plan is available on the
dedicated website of the Project.
ET carried out the following
actions during the reporting period:
·
The MSS automatically recorded deviation cases such as speeding,
entering no entry zone and not travelling through the designated gate. ET
conducted checking to ensure the MSS records deviation cases accurately.
·
Deviations such as speeding within the works area, entering from
non-designated gates and entering no entry zone were identified. All the
concerned contractors were reminded to comply with the requirements of the
MTRMP-CAV during the bi-weekly Construction Traffic Control Centre (CTCC)
audit.
·
Three-month rolling programmes (one month record and three months
forecast) for construction vessel activities were received from the contractors
in order to help maintain the number of construction and associated vessels on
site to a practicable minimal level.
7.6
Implementation of Dolphin Exclusion Zone
During the reporting period,
there was no dolphin sighting within the DEZ.
7.7
Status of Submissions under Environmental Permits
The current
status of submissions under the EP up to the reporting period is
presented in Table 7.9.
Table 7.9: Status of
Submissions under Environmental Permit
|
EP Condition |
Submission |
Status |
|
2.1 |
Complaint Management Plan |
Accepted / approved by EPD
|
|
2.4 |
Management Organizations |
|
|
2.5 |
Construction Works Schedule and Location Plans |
|
|
2.7 |
Marine Park Proposal |
|
|
2.8 |
Marine Ecology Conservation Plan |
|
|
2.9 |
Marine Travel Routes and Management Plan for Construction and Associated Vessels |
|
|
2.10 |
Marine Travel Routes and Management Plan for High Speed Ferries of SkyPier |
|
|
2.11 |
Marine Mammal Watching Plan |
|
|
2.12 |
Coral Translocation Plan |
|
|
2.13 |
Fisheries Management Plan |
|
|
2.14 |
Egretry Survey Plan |
|
|
2.15 |
Silt Curtain Deployment Plan |
|
|
2.16 |
Spill Response Plan |
|
|
2.17 |
Detailed Plan on Deep Cement Mixing |
|
|
2.18 |
Landscape & Visual Plan |
|
|
2.19 |
Waste Management Plan |
|
|
2.20 |
Supplementary Contamination Assessment Plan |
|
|
3.1 |
Updated EM&A Manual |
|
|
3.4 |
Baseline Monitoring Reports |
7.8
Compliance with Other Statutory Environmental Requirements
During the reporting period,
environmental related licenses and permits required for the construction
activities were checked. No non-compliance with environmental statutory
requirements was recorded. The latest statuses of the environmental licenses
and permits in the reporting period are presented in Appendix E.
7.9
Analysis and Interpretation of Complaints, Notification of
Summons and Status of Prosecutions
7.9.1
Complaints
No construction activities-related complaint was received
during the reporting period.
7.9.2
Notifications of
Summons or Status of Prosecution
Neither notification of summons nor prosecution was received
during the reporting period.
7.9.3
Cumulative
Statistics
Cumulative statistics on complaints, notifications of summons and status of prosecutions are summarised in Appendix F.
8
Future Key Issues and Other EIA
& EM&A Issues
8.1
Construction Programme for the Coming Reporting Period
Key activities anticipated in the next reporting period for
the Project will include the following:
Contract 3206 Main Reclamation Works
● Filling materials delivery.
Airfield Works
Contract
3302 Eastern Vehicular Tunnel Advance Works
● Construction
of tunnel structure;
● Pipe and
drainage diversion works;
● Utilities
and backfilling works; and
● Stockpiling.
Contract 3305 Airfield Ground Lighting System
● Enhanced vehicular
warning light hardware installation;
● Power supply
system installation;
● Rectification
work for airfield ground lighting system; and
● Cable
containment installation.
Contract 3306 Observation
Facility Control System Supporting Interim 2RS and 3RS
● Equipment
installation;
● Structured
cabling.
Contract 3308 Foreign Object
Debris Detection System
● Rectification
work for handover sensor system.
Contract 3310 North
Runway Modification Works
● Architectural,
builder's work and finishing works;
● Seawall
construction;
● Construction
of stormwater drainage;
● Piling
works;
● Aviation
fuel pipe works;
● Pipe pile
works;
● Construction
of box culvert; and
● Land
improvement works (Transition layer and backfilling works).
Third Runway Concourse:
Contract
3403 New Integrated Airport Centres Building and Civil Works
● Architectural,
builder's work and finishing works; and
● Electrical
and mechanical works.
Contract
3404 Integrated Airport Control System
● System
maintenance.
Contract 3405 Third Runway Concourse Foundation and
Substructure Works
● Structure
works;
● Marine
sediment treatment works; and
● Tunnel
concreting and backfilling works;
Contract 3408 Third Runway Concourse and Apron Works
● Building
services and architectural, builder's work and finishing works;
● Foundation
works for concrete batching plant; and
● Excavation
and reinforced concrete works.
Terminal 2 Expansion:
Contract 3508 Terminal 2 Expansion Works
● Bridge
demolition;
● Pier and
temporary road construction;
● Pump station
and electrical station works; and
● Architectural,
builder's work and finishing works.
Automated People Mover (APM) and Baggage Handling System
(BHS):
Contract 3601 New Automated People Mover System (TRC Line)
● Guide beam
installation.
Contract 3602 Existing APM System Modification Works
● Concrete
plinth construction.
Contract 3603 Baggage Handling
System (BHS)
● BHS
installation; and
● Steel work
installation.
Construction Support (Facilities):
Contract
3721 Construction Support Infrastructure Works
● Provision of
backup services.
Airport Support Infrastructure:
Contract 3801 APM and BHS Tunnels on Existing Airport
Island
● Backfilling works;
● Gas main pipe laying;
● Road reinstatement works; and
● Coring works at bulkhead wall.
Contract 3802 APM and BHS Tunnels and Related Works
● Excavation
and lateral supports;
● Box culvert
construction;
● Tunnel
construction; and
● Electrical
and mechanical works.
Contract 3804 East and Landside Fire Stations
● Site setup
and formation works;
● Bored pile
works;
● Raft
foundation and footing works; and
● Tower crane
footing and erection works.
Contract 3805 New Airport District Police Operational Base
● Bored pile
works; and
● Construction
of temporary working platform.
Construction Support (Services / Licences):
Contract 3901A Concrete Batching Facility
● Operation of
concrete batching plant and material conveyor belt.
Contract 3901B
Concrete Batching Facility
● Operation of
concrete batching plant and material conveyor belt.
Contract 3908 Quay
Management Services
● Provision of services
of site management and logistic control of 3RS quays; and
● Provision of
flat top barge and vehicle delivery services between the launching point in
Hong Kong and 3RS quays.
Contract 3913
Asphalt Batching Plant
● Operation of asphalt batching plant.
8.2
Key Environmental Issues for the Coming Reporting Period
The key environmental issues for
the Project in the coming reporting period expected to be associated with the
construction activities include:
● Generation of dust from construction
works and stockpiles;
● Noise from operating equipment and
machinery on-site;
● Generation of site surface runoffs and
wastewater from activities on-site;
● DEZ monitoring for seawall
construction;
● Sorting, recycling, storage and
disposal of general refuse and construction waste;
● Reuse of treated marine sediments from
piling and excavation works; and
● Management of chemicals and avoidance
of oil spillage on-site.
The implementation of required
mitigation measures by the contractors will be monitored by the ET.
8.3
Monitoring Schedule for the Coming Reporting Period
A tentative schedule of the
planned environmental monitoring work in the next reporting period is provided
in Appendix B.
8.4
Review of the Key Assumptions Adopted in the EIA Report
With reference to Appendix E of
the Manual, it is noted that the key assumptions adopted in approved EIA report
for the construction phase are still valid and no major changes are involved.
The environmental mitigation measures recommended in the approved EIA Report
remain applicable and shall be implemented in undertaking construction works
for the Project.
9
Conclusion and Recommendation
The key
activities of the Project carried out in the reporting period are located in
reclamation areas and existing airport island respectively. Works in the
reclamation areas included seawall construction, land improvement works and
filling together with taxiways, concourse and associated works. Land-based
works on existing airport island involved mainly airfield works, Terminal 2
expansion works, modification and tunnel work for Automated People Mover (APM)
and Baggage Handling System (BHS), and preparation work for utilities, with
activities include road and drainage works, cable ducting, demolition, piling,
and excavation works. All the monitoring works
for construction dust, construction noise, water quality, construction waste,
landscape & visual, and CWD were conducted during the reporting period in
accordance with the Manual.
All the
monitoring works for construction dust,
construction noise, water quality, construction waste, landscape & visual,
and CWD were conducted during the reporting period in accordance with the
Manual.
Monitoring results of construction dust, construction noise, construction
waste and CWD did not trigger the corresponding Action and Limit Levels during
the reporting period.
The water quality monitoring
results for all parameters, except DO, obtained during the reporting period
were within the corresponding Action and Limit Levels stipulated in the
EM&A programme. Relevant investigation and follow-up actions were conducted
for the DO results triggering the relevant Action Level and the investigation
findings concluded that the cases were not related to the Project. To conclude,
the construction activities during the reporting period did not introduce
adverse impact to all water quality sensitive receivers.
Weekly site inspections of the
construction works were carried out by the ET to audit the implementation of
proper environmental pollution control and mitigation measures for the Project.
Bi-weekly site inspections were also conducted by the IEC. Site inspection
findings were recorded in the site inspection checklists and provided to the
contractors to follow up.
On the implementation of the SkyPier Plan, the daily movements of all SkyPier HSFs in the reporting period, including those not
using the diverted route, were in the range of 33 to 48 daily movements, which
are within the maximum daily cap of 125 daily movements. A total of 22 HSFs movements under the SkyPier
Plan were recorded in the reporting period. The average speed of all HSFs
travelling through the SCZ ranged from 10.9 to
13.3 knots. All HSFs travelled through the SCZ
with average speed under 15 knots in compliance with the SkyPier
Plan. In summary, the ET and IEC audited the HSF movements against the SkyPier Plan and conducted follow up investigations or
actions accordingly.
On the implementation of
MTRMP-CAV, the MSS automatically recorded the deviation case such as speeding,
entering no entry zone and not travelling through the designated gates. ET
conducted checking to ensure the MSS records all deviation cases accurately.
Deviations including speeding within the works area, entering from
non-designated gates and entering no entry zone were reviewed by ET. All the
concerned captains were reminded by the contractor’s CTCC representative to
comply with the requirements of the MTRMP-CAV. The ET reminded contractors that
all vessels shall avoid entering the no-entry zone, in particular the Brothers
Marine Park and the Sha Chau & Lung Kwu Chau
Marine Park. Three-month rolling programmes for construction vessel activities,
which ensures the proposed vessels are necessary and minimal through good
planning, were also received from contractors.
[1] The Manual is available on the Project’s dedicated
website (accessible at: http://env.threerunwaysystem.com/en/index.html).