EXECUTIVE SUMMARY
Introduction
1.
This is the 53rd Environmental Monitoring and Audit (EM&A) Report prepared by
the Environmental Team (ET), Cinotech Consultants
Ltd., for Contract No. ED/2018/04 “Trunk Road T2 and Infrastructure Works for
Developments at the Former South Apron”, and Contract No. ED/2020/03 “Trunk
Road T2 - Traffic Control And Surveillance System
(TCSS) and Associated Works”. This report summarized the monitoring results and
audits findings of the EM&A programme under the issued Environmental Permit
(EP) No. EP-458/2013/C and in accordance with the EM&A Manual
(AEIAR-173/2013) during the reporting month of September 2024.
Summary of Main Works
Undertaken and Key Measures Implemented
2.
The main works undertaken
during the reporting period are as follows:
Table I Summary of Key
Construction Work in the Reporting Month
|
Contract No.
|
Project Title
|
Site Activities
|
|
ED/2018/04
|
Trunk Road T2 and Infrastructure Works for
Developments at South Apron
|
·
East Ventilation Building RC
Structure
·
East Ventilation Building
ABWF
·
East Ventilation Building E&M works
·
East Bound – Additional Cavern Excavation
·
East Bound – Type A1 OHVD
·
East Bound – Type C Crown
·
West Bound – Pre-tunnel
invert excavation
|
|
ED/2020/03
|
Trunk Road T2 - Traffic Control And
Surveillance System (TCSS) and Associated Works (1)
|
N/A
|
|
Notes:
(1): No major
construction work was undertaken during reporting month.
N/A: Not applicable
|
3.
Implementation of the key
mitigation measures during the reporting period are as follows:
Table II Summary of Key Mitigation
Measures Implemented in the Reporting Month
|
Contract No. and Project
Title
|
Key Mitigation Measures Implemented
|
|
ED/2018/04 - Trunk Road T2 and Infrastructure Works for
Developments at South Apron
|
Construction Noise
·
Construction activities were
scheduled to minimize noise nuisance to the nearby sensitive receiver.
·
Use of Quality Powered
Mechanical Equipment (QPME) on site.
·
Erected the noise barrier on
site.
Air Quality
·
Regularly watering on site to
avoid dust generation.
Landscape and Visual
·
Tree protection zones were
fenced off to protect the existing trees on site.
|
|
ED/2020/03 - Trunk Road T2 - Traffic Control And
Surveillance System (TCSS) and Associated Works (1)
|
N/A
|
|
Notes:
(1): No major
construction work was undertaken during reporting month.
N/A: Not
applicable
|
Environmental Monitoring
Works
4.
Environmental monitoring for
the Project was performed in accordance with the EM&A Manual and the
monitoring results were checked and reviewed. Site Inspections/Audits were
conducted once per week. The implementation of the environmental mitigation measures,
Event Action Plans and environmental complaint handling procedures were also
checked.
5.
Summary of the non-compliance
(exceedance) in the reporting month for the Project is tabulated in Table I.
Table III Non-compliance (exceedance)
Record for the Project in the Reporting Month
|
Environmental Monitoring
|
No. of Non-compliance (Exceedance)
|
No. of Non-compliance (Exceedance)
due to Construction Activities of this
Project
|
Action Taken
|
|
Action Level
|
Limit Level
|
Action Level
|
Limit Level
|
|
Air Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
1
|
0
|
1
|
0
|
Refers to App M
|
|
Marine Water Quality
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Groundwater Level Monitoring (Piezometer Monitoring)
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Ecological
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Cultural Heritage
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Landfill Gas
|
N/A (1)
|
N/A
|
N/A (1)
|
N/A
|
N/A
|
|
Note: (1): No
Action Level for Landfill Gas Monitoring.
|
Air Quality Monitoring
6.
No Action/Limit Level exceedance
for 1-hour TSP monitoring was recorded.
7.
No Action Level exceedance and
no Limit Level exceedance was recorded for 24-hour TSP monitoring in the
reporting month.
Construction
Noise Monitoring
8.
One (1) Action Level exceedance was recorded due
to documented complaint in the reporting month. The Summary of Documented
Complaints in the Reporting Month is tabulated in Table IV.
9.
No Limit Level exceedance for
day time construction noise monitoring were recorded in the reporting month.
Detail shall refer to Appendix N.
Water Quality Monitoring
10. Groundwater quality monitoring had been suspended since October 2019
upon the agreement by EPD. Further details should be founded at Section 4.1.
11. No marine water quality monitoring is required as no marine works
will be conducted at the Cha Kwo Ling and Lam Tin areas for this project.
12. As the construction activity is approximately 120m away from the
piezometer gate, no piezometer monitoring is required.
Waste
Management
13. Wastes generated from this Project include inert construction and
demolition (C&D) materials, and non-inert C&D materials. Details of
waste management data is presented in Appendix
H.
Ecological Monitoring
14.
No coral monitoring is required
as no marine works will be conducted at the Cha Kwo Ling and Lam Tin areas for
this project.
Fisheries Impact Monitoring
15. No specific fisheries monitoring programme is required during the
construction phase.
Monitoring
on Cultural Heritage
16. As the construction works of Cha Kwo Ling Tunnel from the end of
Trunk Road T2 to the TKOLTT at the Eastern Ventilation Building are located
more than 100m away from the Cha Kwo Ling Tin Hau temple, no monitoring on
cultural heritage is required.
Landscape and Visual Monitoring and Audit
17.
The implementation of landscape
and visual mitigation measures was checked by a registered landscape architect.
Recommended follow-up actions have been discharged by the Contractor. Details of the audit findings and
implementation status are presented in Section
12.
Landfill Gas Monitoring
18.
Monitoring of landfill gases
was commenced in December 2016. Since no excavation activity for this Project
was carried out within the Sai Tso Wan Landfill Consultation Zone in the
reporting month, no landfill gas monitoring is required
Hazard to Life Monitoring
19. No environmental monitoring
and audit are required as no hazard assessment was conducted.
Environmental
Site Inspection
20. Joint weekly site inspections were conducted by representatives of
the Contractor, Engineer and Environmental Team. Details of the audit findings
and implementation status are presented in Section
12.
Key Information in the
Reporting Month
21. Summary of key information in the reporting month is tabulated in Table II.
Table IV Summary
of Complaints, Notifications of Summons and Successful Prosecutions in the
Reporting Month
|
Event
|
Event Details
|
Action Taken
|
Status
|
|
Number
|
Nature
|
|
Complaints Received
|
1
|
Noise
|
Detail refers to App M
|
Closed
|
|
Notifications of
any summons & prosecutions received
|
0
|
--
|
N/A
|
N/A
|
22. Summary of complaints received in the reporting month is tabulated
in Table III.
Table V Summary
of Complaints Details in Reporting Month
|
Complaint Type
|
Investigation Findings
|
Follow-up Action / Mitigation Measure
|
|
Noise nuisance generated from the construction
activities at Portion T1 (11
September 2024)
|
· The weekly noise monitoring and additional
noise assessments have verified that the noise levels remain within the set
limits. Moreover, the ground borne noise measurements data suggests that the
noise levels are well within the criteria outlined in the TM.
· As works (i.e. rock breaking) was carried
during the complaint period, the complaint is considered as project-related
in terms of construction noise.
|
·
No
violation of the NMP was recorded as the numbers and types of PMEs operated
during the period of complaint comply with the latest NMP.
·
The
contractor has taken steps to address noise concerns by implementing noise control measures
such as covering all the noisy operating PME/equipment with silencer and
noise enclosure.
·
In
addition, the Contractor should still maintain good site practices, such as
schedule noisy work to the less sensitive hours and provide regularly
maintenance for PMEs.
·
The
Contractor is recommended to strictly follow the conditions and requirements
of the valid NMP and ensure the construction activities being taken were
complied with the relevant NMP.
|
23. No reporting change is recorded in the reporting months.
Future Key Issues
24. The key works or activities will be anticipated in the next
reporting period are as follows:
Table VI Summary
Table for Site Activities in the next Reporting Period
|
Contract No. and Project Title
|
Site Activities (October 2024)
|
Key Environmental Issues
|
|
ED/2018/04 - Trunk Road T2 and
Infrastructure Works for Developments at South Apron
|
·
East Ventilation Building RC
Structure
·
East Ventilation Building
ABWF
·
East Ventilation Building E&M works
·
East Bound – Additional
Cavern Excavation
·
East Bound – Type C Crown
·
East Bound – Type A1 OHVD
·
West Bound – Pre-tunnel invert excavation
|
(A) / (B) / (C) / (D)
|
|
ED/2020/03 - Trunk Road T2 -
Traffic Control And Surveillance System (TCSS) and
Associated Works (1)
|
N/A
|
|
Notes:
(1): No major
construction work was undertaken during reporting month.
N/A: Not
applicable
(A) Dust
generation from haul road, stockpile of dusty materials, exposed site area, excavation
works and rock breaking activities;
(B) Noisy construction activity such as
rock-breaking activities and piling works
(C) Runoff from exposed slope or site area;
and
(D) Wastewater and runoff discharge from
site.
|
Background
1.1
In 2009, Civil Engineering and Development Department (CEDD) commissioned a Kai Tak Development (KTD) – Trunk Road T2 and Infrastructure at
South Apron Investigation. The assignment covers the provision of the Trunk Road T2 and its
connections with the Central Kowloon Route (CKR) at the north apron area and
the Tseung Kwan O – Lam Tin Tunnel (TKOLTT) to the south in the Cha Kwo Ling
area.
1.2
The Trunk Road T2 Project is one of the designated Projects under
Schedule 2 of the EIAO proposed in the KTD. CEDD submitted the
Project Profile (No. PP-379/2009) on 24 March 2009 for application for an EIA
study brief for the Trunk Road T2 Project under the EIAO. Accordingly, an EIA
Study Brief (ESB-203/2009) for the Trunk Road T2 Project was issued on 30 April
2009. The Environmental Impact Assessment (EIA) Report for the Trunk Road T2
Project was approved under the Environmental Impact Assessment Ordinance (EIAO)
on 19 September 2013. The corresponding Environmental Permit (EP) was issued on
19 September 2013 (EP no.: EP-451/2013).
1.3
The Contract No. ED/2018/04 is the main contract of Trunk Road T2 (“T2
Main Works”) which comprises mainly the design and construction of a dual
two-lane trunk road of approximately 3.0km long with about 2.7km of the trunk
road in form of tunnel; ventilation and administration buildings, environmental
protection and mitigation works and etc. Moreover, the Contract No. ED/2020/03
is the other contract under Truck Road T2 Project which comprises mainly design
and construction of the TCSS for this Project. The EM&A programme under the
Contract ED/2018/04 and ED/2020/03 are governed by the two EPs (EP-451/2013 and
EP-458/2013/C) and two EM&A Manuals (AEIAR-174/2013 and AEIAR-173/2013).
The work areas of the T2 Main Works are shown in Figure 1 and the works to be executed under these Contracts and
corresponding EPs are summarized as follows:
|
Environmental Permit
|
Works Description
|
|
EP-451/2013
– Trunk Road T2
|
ED/2018/04
●
Construction
of highway and sub-sea tunnel connecting between Central Kowloon Route and
Cha Kwo Ling Tunnel
●
Western
& Eastern Ventilation Buildings
ED/2020/03
Design and construction of TCSS for Trunk Road T2
|
|
EP-458/2013/C
– Tseung Kwan O – Lam Tin Tunnel (TKOLTT) and Associated Works
|
ED/2018/04
●
Construction
of Cha Kwo Ling Tunnel from the end of Trunk Road T2 to the TKOLTT at the
Eastern Ventilation Building
ED/2020/03
●
Design
and construction of TCSS for Trunk Road T2
|
Monitoring Works in Lam Tin under
EP-458/2013/C
1.4
Under Agreement No. CE 59/2015
(EP) – Tseung Kwan O – Lam Tin Tunnel (TKOLLT) and Associated Works, the
baseline monitoring works in Lam Tin under the EM&A Manual (AEIAR-173/2013)
were conducted by the Environmental Team (ET) for the Agreement No. CE 59/2015
(EP) at the approved monitoring locations, namely AM1, AM2, AM3, AM4, AM4 (A)
CM1, CM2, CM3, CM4 and CM5. Impact monitoring within the Lam Tin area shall be
conducted by the ET of Contract No. ED/2018/04 upon cessation of Agreement No.
CE 59/2015 (EP). The data obtained from the impact monitoring works completed
by the ET of Agreement No. CE 59/2015 (EP) will be adopted in this report.
1.5
Cinotech Consultants Ltd. was designated as the Environmental Team (ET) to
undertake the EM&A works for “Trunk Road T2 and Infrastructure Works for
Developments at the Former South Apron” (hereinafter called the
“Project”).
Purpose of the Report
1.6
This is the 53rd Monthly EM&A Report which summarises the impact monitoring
results and audit findings for the EM&A programme during the reporting
period in September
2024.
Project Organizations
1.7
Different Parties with
different levels of involvement in the Project organization include:
•
Permit Holder – Civil
Engineering and Development Department (CEDD)
•
Supervisor Representative –
Hyder-Meinhardt Joint Venture (HMJV)
•
Environmental Team (ET) – Cinotech Consultants Limited (Cinotech)
•
Independent Environmental
Checker (IEC) – Ramboll Hong Kong Limited (Ramboll)
•
Contractor – Bouygues Travaux
Publics (BTP) (For ED/2018/04) & GTECH Services (Hong Kong) Limited (For
ED/2020/03)
1.8
The key contacts of the Project
are shown in Table 1.1.
Table 1.1 Key Project Contacts
|
Party
|
Role
|
Contact Person
|
Phone No.
|
|
CEDD
|
Permit Holder
|
Mr. Wong Chi Wai, Tommy
|
3842 7111
|
|
HMJV
|
Supervisor Representative
|
Ms. Hazel Tang
|
2149 8524
|
|
Cinotech
|
Environmental Team
|
Mr. KS Lee (ETL)
|
2151 2091
|
|
Ms. Karina Chan
|
2157 3880
|
|
Ramboll
|
Independent Environmental Checker
|
Mr. YH Hui
|
3465 2850
|
|
BTP
|
Contractor (ED/2018/04)
|
Mr. Roy Leung
|
6628 2685
|
|
GTECH
|
Contractor (ED/2020/03)
|
Mr. Deacon Choi
|
6038 3568
|
|
|
1.9
The Organizational Structure
for Environmental Management is shown in Figure
1.2.
Construction Activities
undertaken during the Reporting Month
1.10 The major site activities undertaken in the reporting month
included:
Table 1.2 Summary of Key Construction Work in the
Reporting Month
|
Contract No.
|
Project Title
|
Site Activities
|
|
ED/2018/04
|
Trunk Road T2 and Infrastructure Works for
Developments at South Apron
|
·
East Ventilation Building RC
Structure
·
East Ventilation Building
ABWF
·
East Ventilation Building E&M works
·
East Bound – Additional Cavern Excavation
·
East Bound – Type A1 OHVD
·
East Bound – Type C Crown
·
West Bound – Pre-tunnel
invert excavation
|
|
ED/2020/03
|
Trunk Road T2 – Traffic Control And
Surveillance System (TCSS) and Associated Works (1)
|
N/A
|
|
Notes:
(1): No major
construction work was undertaken during reporting month.
N/A: Not applicable
|
1.11 The EM&A programme requires construction noise, air quality
monitoring and environmental site audit, etc. The EM&A requirements for
each parameter are described in the following sections, including:
•
All monitoring parameters;
•
Action and Limit levels for all
environmental parameters;
•
Event Action Plans;
•
Environmental mitigation
measures, as recommended in the Project EIA Report.
1.12
The advice on the
implementation status of environmental protection and pollution
control/mitigation measures is summarized in Section 12 of this report.
1.13 This report presents the monitoring results, observations,
locations, equipment, period, methodology and QA/QC procedures of the
monitoring parameters of the required environmental monitoring works and audit
works for the Project in September 2024.
Status of Environmental
Licensing and Permitting
1.14 All permits/licenses obtained for the Project are summarized
in Table 1.3.
Table 1.3 Summary of Environmental License and
Permit
|
Permit / License No.
|
Valid Period
|
Status
|
|
From
|
To
|
|
Environmental
Permit (EP)
|
|
EP-451/2013
|
19 Sep 2013
|
N/A
|
Valid
|
|
EP-458/2013/C
|
20 Jan 2017
|
N/A
|
Valid
|
|
Notification pursuant to Air Pollution
(Construction Dust) Regulation
|
|
Ref. No.: 451120
|
20 Nov 2019
|
N/A
|
Valid
|
|
Billing Account for Construction Waste
Disposal
|
|
A/C No.: 7036016
|
09 Dec 2019
|
N/A
|
Valid
|
|
Construction Noise Permit
|
|
CNP No. (For Portion U): GW-RE0314-24
|
01 Apr 2024
|
30 Sep 2024
|
Valid until 30 Sep 2024
|
|
CNP No. (For Portion T1): GW-RE0930-24
|
10
Aug 2024
|
09 Nov 2024
|
Valid
|
|
CNP No. (For Portion Q): GW-RE1005-24
|
01 Sep 2024
|
31 Dec 2024
|
Valid
|
|
Wastewater Discharge License
|
|
WT00036699-2020
|
14 Jan 2021
|
31 Jan 2026
|
Valid
|
|
Chemical Waste Producer License
|
|
WPN: 5213-286-B2557-03
|
09 Mar 2020
|
N/A
|
Valid
|
2.
AIR
QUALITY
Monitoring Requirement
2.1
According to Section 2.2.4 of
the EM&A Manual (AEIAR-173/2013), 1-hour and 24-hour Total Suspended
Particulates (TSP) monitoring was conducted to monitor the air quality for this
Project. For regular impact monitoring, a sampling frequency of at least once
in every six days at all of the monitoring stations for 1-hour and 24-hour TSP
monitoring. Appendix A shows the established Action/Limit
Levels for the environmental monitoring works.
Monitoring Locations
2.2
Five designated monitoring
stations were selected for air quality monitoring programme. Table 2.1 describes the air quality
monitoring locations, which are also depicted in Figure 2.
Table 2.1 Air Quality Monitoring Locations
|
Monitoring Stations
|
Location
|
Location of Measurement
|
|
AM1
|
Tin Hau Temple
|
Ground Level
|
|
AM2
|
Sai Tso Wan Recreation Ground
|
Ground Level
|
|
AM3
|
Yau Lai Estate Bik Lai House
|
Rooftop (41/F)
|
|
AM4(1)
|
Sitting-out Area at Cha Kwo Ling Village
|
Ground Level
|
|
AM4(B)(2) (*) (**)
|
Flat 103 Cha Kwo Ling Village
|
Ground Level
|
Remarks:
(1) For 1-hour TSP
monitoring;
(2) For 24-hour TSP
monitoring
(*)
Air quality monitoring at designated station AM4 (24-hr TSP) was rejected by
the premise owners.
Therefore, baseline and impact air quality
monitoring works were carried out at alternative air quality monitoring
stations AM4 (A) (24-hr TSP only)
(**)
AM4(A) is not available for conducing monitoring due to the demolition of
administrative office.
Monitoring Parameters and
Frequency
2.3
Table 2.2 summarizes the monitoring
parameters, monitoring period and frequencies of impact air quality monitoring.
The monitoring schedule is shown in
Appendix D.
Table 2.2
Frequency and Parameters of Air Quality
Monitoring
|
Monitoring Stations
|
Parameter
|
Period
|
Frequency
|
|
AM1, AM2, AM3, AM4
|
1-hour TSP
|
0700 – 1900
|
3 times per 6 days
|
|
AM1, AM2, AM3, AM4(B)
|
24-hour TSP
|
24 hours
|
Once every 6 days
|
|
|
Monitoring Equipment
2.4
High Volume Samplers (HVS) in
compliance with the specification stipulated in the EM&A Manual
(AEIAR-173/2013), Section 2.3.1, were used to carry out 24-hour TSP monitoring.
Direct reading dust meter were also used to measure 1-hour average TSP levels.
The 1-hour sampling was determined by HVS to check the validity and accuracy of
the results measured by direct reading method.
2.5
Wind data monitoring equipment
was set at rooftop (about 41/F) of Yau Lai Estate Bik Lai House for logging
wind speed and wind direction such that the wind sensors are clear of
obstructions or turbulence caused by building. The wind data monitoring equipment
is re-calibrated at least once every six months and the wind directions are
divided into 16 sectors of 22.5 degrees each. The location is shown in Figure 2. This weather information for
the reporting month is summarized in Appendix
C.
2.6
Table 2.3 summarizes the equipment used
for air quality monitoring by the ET for Contract No. CE 59/2015 (EP). Copies
of calibration certificates are attached in Appendix B.
Table 2.3 Air Quality Monitoring Equipment
|
Equipment
|
Model
|
Quantity
|
|
1-hour TSP Dust Meter
|
Sibata Model No. LD-3B
(Serial No.: 2Y6194)
Sibata Model No. LD-5R
(Serial No.: 972777, 972778, 972780,
8Y2374, 8Y2373)
|
6
|
|
HVS Sampler
|
GMW model: GS2310
(Serial No.: 1287, 10379, 10599)
|
3
|
|
TE 5170 (Serial No.: 1956)
|
1
|
|
Calibrator
|
TISCH Model: TE-5025A
(Serial No.: 3864)
|
1
|
|
Wind Anemometer
|
Davis Weather Monitor II, Model no. 7440
(Serial No.: MC01010A44)
|
1
|
Monitoring Methodology
1-hour TSP Monitoring
Measuring Procedures
2.7
The measuring procedures of the
1-hour dust meter are in accordance with the Manufacturer’s Instruction Manual
as follows:
(Sibata Model No.:
LD-5R)
●
The 1-hour dust meter is placed
at least 1.3 meters above ground.
●
Set POWER to “ON” and make sure
that the battery level was not flash or in low level.
●
Allow the instrument to stand
for about 3 minutes and then the cap of the air sampling inlet has been
released.
●
Push the knob at MEASURE
position.
●
Set time/mode setting to [BG]
by pushing the time setting switch.
Then, start the background measurement by pushing the start/stop switch
once. It will take 6 sec. to complete the
background measurement.
●
Push the time setting switch to
change the time setting display to [MANUAL] at the bottom left of the liquid
crystal display. Finally, push the start/stop switch to stop the measuring
after 1 hour sampling.
●
Information such as sampling
date, time, count value and site condition were recorded during the monitoring
period.
Maintenance/Calibration
2.8
The following
maintenance/calibration is required for the 1-hour dust meter:
●
Check and calibrate the meter
by HVS to check the validity and accuracy of the results measured by direct
reading method at 2-month intervals throughout all stages of the air quality
monitoring.
24-hour TSP Monitoring
Instrumentation
2.9
High volume samplers (HVS)
(TISCH Model: TE-5170 and GMW Model: GS2310) completed with appropriate
sampling inlets were employed for 24-hour TSP monitoring. The sampler was composed of a motor, a filter
holder, a flow controller and a sampling inlet and its performance
specification complied with that required by USEPA Standard Title 40, Code of
Federation Regulations Chapter 1 (Part 50).
2.10
The positioning of the HVS
samplers are as follows:
●
A horizontal platform with
appropriate support to secure the samplers against gusty wind shall be
provided;
●
No two samplers shall be placed
less than 2 meters apart;
●
The distance between the
sampler and an obstacle, such as buildings, must be at least twice the height
that the obstacle protrudes above the sampler;
●
A minimum of 2 metres of
separation from walls, parapets and penthouses is required for rooftop
samplers;
●
A minimum of 2 metres of
separation from any supporting structure, measured horizontally is required;
●
No furnace or incinerator flue
is nearby;
●
Airflow around the sampler is
unrestricted;
●
The sampler is more than 20
metres from the dripline;
●
Any wire fence and gate, to
protect the sampler, shall not cause any obstruction during monitoring;
●
Permission must be obtained to
set up the samplers and to obtain access to the monitoring stations; and
●
A secured supply of electricity
is needed to operate the samplers.
Operating/analytical procedures for the
operation of HVS
2.11
Operating/analytical procedures
for the air quality monitoring are highlighted as follows:
●
Prior to the commencement of
the dust sampling, the flow rate of the high-volume sampler was properly set
(between 0.6 m3/min. and 1.7 m3/min.) in accordance with
the EM&A manual (AEIAR-173/2013). The flow rate shall be indicated on the
flow rate chart.
●
For TSP sampling, fiberglass
filters with a collection efficiency of > 99% for particles of 0.3μm
diameter were used.
●
The power supply was checked to
ensure the sampler worked properly. On
sampling, the sampler was operated for 5 minutes to establish thermal
equilibrium before placing any filter media at the designated air monitoring
station.
●
The filter holding frame was
then removed by loosening the four nuts and a weighted and conditioned filter
was carefully centered with the stamped number
upwards, on a supporting screen.
●
The filter was aligned on the
screen so that the gasket formed an airtight seal on the outer edges of the
filter. Then the filter holding frame
was tightened to the filter holder with swing bolts. The applied pressure
should be sufficient to avoid air leakage at the edges.
●
The shelter lid was closed and
secured with the aluminium strip.
●
The timer was then
programmed. Information was recorded on
the record sheet, which included the starting time, the weather condition and
the filter number (the initial weight of the filter paper can be found out by using
the filter number).
●
After sampling, the filter was
removed and sent to the HOKLAS laboratory (ALS Technichem
(HK) Pty Ltd.) for weighing. The elapsed
time was also recorded.
●
Before weighing, all filters
were equilibrated in a conditioning environment for 24 hours. The conditioning
environment temperature should be between 25°C and 30°C and not vary by more
than ±3°C; the relative humidity (RH) should be < 50% and not vary by more
than ±5%. A convenient working RH is 40%.
Maintenance/Calibration
2.12
The following
maintenance/calibration is required for the HVS:
●
The high-volume motors and
their accessories were properly maintained. Appropriate maintenance such as
routine motor brushes replacement and electrical wiring checking were made to
ensure that the equipment and necessary power supply are in good working condition.
High volume samplers were calibrated at bi-monthly intervals using
TE-5025A Calibration Kit throughout all stages of the air quality monitoring.
Results and Observations
2.13
The impact monitoring works for
air quality monitoring locations AM1, AM2, AM3 and AM4 are completed by the ET
of Agreement No. CE 59/2015 (EP), and the data will be adopted in this report.
As the proposal for relocation approved, the monitoring at AM4(A) will be
conducted at AM4(B). For the time being, as the station CKL2 for the 24 hr TSP
monitoring, carried out under EM&A works for Trunk Road T2 Project (EP-
451/2013), is located in close proximity to AM4(B); the results from CKL2 are
adopted as reference for the 24 TSP monitoring at AM4(B), which has similar
environment when compared with that for CKL2. The location of monitoring
station CKL2 is shown in Figure 2.
2.14
The impact air quality
monitoring was conducted at all five monitoring stations as scheduled. The
monitoring schedule is shown in Appendix
D.
2.15
No Action Level exceedance was recorded for
24-hour TSP monitoring in the reporting month and No Limit Level exceedance was
recorded for 24-hour TSP monitoring in the reporting month.
2.16
No Action/Limit Level
exceedance was recorded for 1-hour TSP monitoring in the reporting month.
2.17
The monitoring data and graphical
presentations of 1-hour and 24-hour TSP monitoring results are shown in Appendix E and Appendix F respectively.
2.18
According to field observations
by ET for Agreement No. CE 59/2015 (EP) in the reporting period, the major dust
source identified at the designated air quality monitoring stations are as
follows:
Table 2.4 Major Dust Source during Air Quality
Monitoring
|
Monitoring Stations
|
Major Dust Source
|
|
AM1 – Tin Hau Temple
|
Road Traffic at Cha Kwo Ling Road,
non-project related influence and the construction activity from other
construction site (i.e underground utility work in
TKOLTT project)
|
|
AM2 – Sai Tso Wan Recreation
Ground
|
Road Traffic along Sin Fat Road
|
|
AM3 – Yau Lai Estate Bik Lai
House
|
Road Traffic near Eastern Cross Harbour
Tunnel Toll Plaza, non-project related influence and the construction
activity from other construction site (i.e road
paving work in TKOLTT project)
|
|
AM4 - Sitting-out Area at Cha
Kwo Ling Village
|
Road Traffic at Cha Kwo Ling Road
|
|
AM4(B) (**) - Flat
103 Cha Kwo Ling Village
|
Road Traffic at Cha Kwo Ling Road
(*)
|
|
(*): Field
observation observed at CKL2 during monitoring is presented. Detail refers to
S2.13.
(**) AM4(A) is not
available for conducing monitoring due to the demolition of administrative
office.
|
Comparison of EM&A Result with EIA Prediction
2.19
The air monitoring data was
compared with the predictions (with the assessment height of 1.5 mAG) in Table 3.17 of EIA Report, AEIAR-173/2013 (as
approved in 2013) as summarised in Table
2.5 and Table 2.6.
Table 2.5 Comparison of 1-hr TSP Monitoring Data with Predictions in EIA
Report
|
Monitoring Stations
|
ASR ID
|
Predicted Maximum 1-hr TSP Concentration in EIA
Report (AEIAR-173/2013), μg/m3
|
Maximum 1-hr TSP Concentration
in the Reporting Month
(September 2024),
μg/m3
|
|
AM1 – Tin Hau Temple
|
CL1
|
707
|
195.7
|
|
AM2 – Sai Tso Wan Recreation
Ground
|
CL6
|
266
|
58.9
|
|
AM3 – Yau Lai Estate Bik Lai
House
|
CL9
|
507
|
38.4
|
|
AM4 - Sitting-out Area at Cha
Kwo Ling Village
|
CL16
|
430
|
68.8
|
Table 2.6 Comparison of 24-hr TSP Monitoring Data
with Predictions in EIA Report
|
Monitoring Stations
|
ASR ID
|
Predicted Maximum 24-hr TSP Concentration in EIA
Report (AEIAR-173/2013), μg/m3
|
Maximum 24-hr TSP Concentration
in the Reporting Month
(September 2024),
μg/m3
|
|
AM1 – Tin Hau Temple
|
CL1
|
199
|
55.7
|
|
AM2 – Sai Tso Wan Recreation
Ground
|
CL6
|
109
|
26.9
|
|
AM3 – Yau Lai Estate Bik Lai
House
|
CL9
|
123
|
26.5
|
|
AM4(B) – Flat 103 Cha Kwo Ling
Village (*)
|
N/A (1)
|
N/A (1)
|
160.1 (**)
|
Remarks:
(1)
No
24-hr TSP concentration was predicted in EIA Report (AEIAR-173/2013)
(*) Air quality
monitoring at designated station AM4 (24-hr TSP) was rejected by the premise
owners. Therefore, baseline and impact air quality monitoring works were
carried out at alternative air quality monitoring stations AM4 (B) (24-hr TSP
only)
(**): Monitoring
results at CKL2 is presented. Detail refers to S2.13
2.20
In the reporting month, the
1-hour TSP concentrations at AM1, AM2, AM3 and AM4 were lower than the
prediction in the EIA Report, AEIAR-173/2013 (as approved in 2013). No
Action/Limit level exceedance was recorded in the reporting period.
2.21
In the reporting month, the 24-hour
TSP concentrations at AM1, AM2 and AM3 were lower than the prediction in the
EIA Report, AEIAR-173/2013 (as approved in 2013). No Action Level exceedance
was recorded for 24-hour TSP monitoring in the reporting month and no Limit
Level exceedance was recorded for 24-hour TSP monitoring in the reporting
month.
Monitoring
Requirements
3.1
According to Section 3.2.1 of
the EM&A Manual (AEIAR-173/2013), construction noise monitoring was
conducted to monitor the construction noise arising from the construction
activities. The regular monitoring frequency for each monitoring station shall
be on a weekly basis and conduct one set of measurements between 0700 and 1900
hours on normal weekdays. Appendix A
shows the established Action and Limit Levels for the environmental monitoring
works.
Monitoring
Locations
3.2
Noise monitoring was conducted
at five designated monitoring stations, namely CM1, CM2, CM3, CM4 and CM5 in
the reporting period. Table 3.1 and Figure 2 show the locations of these
stations.
Table 3.1 Noise Monitoring
Stations
|
Monitoring Stations
|
Location
|
Location of Measurement
|
|
CM1
|
Nga Lai House,
Yau Lai Estate Phase 1, Yau Tong
|
Rooftop (41/F)
|
|
CM2
|
Bik Lai House,
Yau Lai Estate Phase 1, Yau Tong
|
Rooftop (41/F)
|
|
CM3
|
Block S, Yau Lai
Estate Phase 5, Yau Tong
|
Rooftop (40/F)
|
|
CM4
|
Tin Hau Temple,
Cha Kwo Ling
|
Ground Level
|
|
CM5
|
CCC Kei Faat
Primary School, Yau Tong
|
Rooftop (6/F)
|
Monitoring
Parameters, Frequency and Duration
3.3
Table 3.2 summarizes the monitoring
parameters, frequency and total duration of monitoring. The noise monitoring schedule is shown in Appendix D.
Table 3.2 Frequency and Parameters of Noise
Monitoring
|
Monitoring Stations
|
Time Period
|
Duration
|
Frequency
|
Parameter
|
Measurement
|
|
CM1
|
0700-1900 hrs on normal weekdays
|
30 minutes
|
Once per week
|
L10(30 min.) dB(A)
L90(30 min.) dB(A)
Leq(30 min.) dB(A)
|
Façade Measurement
|
|
CM2
|
Façade Measurement
|
|
CM3
|
Façade Measurement
|
|
CM4
|
Façade Measurement
|
|
CM5
|
Façade Measurement
|
Monitoring
Equipment
3.4
Integrating Sound Level Meter
was used for impact noise monitoring. The meters were Type 1 sound level meter
capable of giving a continuous readout of the noise level readings including
equivalent continuous sound pressure level (Leq)
and percentile sound pressure level (Lx) that also complied with
International Electrotechnical Commission Publications 651:1979 (Type 1) and
804:1985 (Type 1) specifications. Table
3.3 summarizes the noise monitoring equipment being used by the ET for
Agreement No. CE 59/2015 (EP) within the reporting period. Copies of
calibration certificates are attached in Appendix
B.
Table 3.3 Noise Monitoring Equipment
|
Equipment
|
Model
|
Quantity
|
|
Integrating Sound Level Meter
|
BSWA 308 (Serial No.: 580287, 580156,
570183)
SVAN 957 (Serial No.: 21455)
|
4
|
|
Calibrator
|
AWA6021A (Serial No.: 1023253, 1023064)
|
2
|
Monitoring
Methodology and QA/QC Procedure
3.5
The monitoring procedures are
as follows:
●
The monitoring station was
normally be at a point 1m from the exterior of the sensitive receivers building
façade and be at a position 1.2m above the ground.
●
For free field measurement, the
meter was positioned away from any nearby reflective surfaces. All records for
free field noise levels were adjusted with a correction of +3 dB(A).
●
The battery condition was
checked to ensure the correct functioning of the meter.
●
Parameters such as frequency
weighting, the time weighting and the measurement time were set as follows:
-
Frequency weighting: A
-
Time weighting: Fast
-
Time measurement: 30 minutes
●
Prior to and after each noise
measurement, the meter was calibrated using a Calibrator for 94.0 dB at 1000
Hz. If the difference in the calibration
level before and after measurement was more than 1.0 dB, the measurement would
be considered invalid and repeat of noise measurement would be required after
re-calibration or repair of the equipment.
●
The wind speed was frequently
checked with the portable wind meter.
●
At the end of the monitoring
period, the Leq, L90 and L10
were recorded. In addition, site
conditions and noise sources were recorded on a standard record sheet.
●
Noise monitoring would be
cancelled in the presence of fog, rain, and wind with a steady speed exceeding
5 m/s, or wind with gusts exceeding 10 m/s. Supplementary monitoring would be
provided to ensure sufficient data would be obtained.
Maintenance
and Calibration
3.6
The microphone head of the
sound level meter and calibrator were cleaned with a soft cloth at quarterly
intervals.
3.7
The sound level meter and
calibrator were checked and calibrated at yearly intervals.
3.8
Immediately prior to and
following each noise measurement the accuracy of the sound level meter was
checked using an acoustic calibrator generating a known sound pressure level at
a known frequency. Measurements were accepted as valid only if the calibration
levels from before and after the noise measurement agree to within 1.0 dB.
Results
and Observations
3.9
The data obtained from the
impact monitoring works completed by the ET of Agreement No. CE 59/2015 (EP)
will be adopted in this report.
3.10 One (1)
Action Level exceedance was recorded due to the documented complaint in the
reporting month.
3.11 No Limit Level exceedance was recorded for day-time construction
noise monitoring in the reporting month.
3.12 Noise monitoring results and graphical presentations are shown in Appendix
G.
3.13 According to field observations by ET for Agreement No. CE 59/2015
(EP) in the reporting period, the major noise sources identified at the noise
monitoring stations are shown in Table 3.4.
Table 3.4 Other Noise Source
Identified during Noise Monitoring
|
Monitoring Stations
|
Major Noise Source
|
|
CM1
|
Road Traffic near Eastern Cross Harbour Tunnel Toll
Plaza, non-project related construction activities (i.e
road paving work in TKOLTT project)
|
|
CM2
|
Road Traffic near Eastern Cross Harbour Tunnel Toll
Plaza, non-project related construction activities (i.e
road paving work in TKOLTT project)
|
|
CM3
|
Road Traffic near Eastern Cross Harbour Tunnel Toll
Plaza non-project related construction activities (i.e
road paving work in TKOLTT project)
|
|
CM4
|
Road Traffic at
Cha Kwo Ling Road, non-project related construction activities (i.e underground utility work in
TKOLTT project)
|
|
CM5
|
Road Traffic
near Eastern Cross Harbour Tunnel Toll Plaza,
Road Traffic at
Yau Tong Road
|
.
Table 3.5 Baseline Noise
Level and Noise Limit Level for Monitoring Stations
|
Monitoring Stations
|
Baseline Noise Level, dB (A)
(at 0700 – 1900 hrs on normal weekdays)
|
Noise Limit Level, dB (A) (at 0700 – 1900 hrs on normal weekdays)
|
|
CM1
|
65.5
|
75
|
|
CM2
|
63.6
|
|
CM3
|
65.6
|
|
CM4
|
62.0
|
|
CM5
|
68.2
|
70*
|
(*) Noise Limit Level is 65 dB(A) during
school examination periods.
Comparison
of EM&A Result with EIA Prediction
3.14 The noise monitoring data was compared with the predictions in Table
4.15 of EIA Report (AEIAR-173/2013) as summarised in Table 3.6.
Table 3.6 Maximum Predicted
Mitigated Construction Noise Levels in EIA Report
|
Monitoring Stations
|
NSR ID
|
Maximum Predicted Mitigated Construction Noise
Levels in EIA Report (AEIAR-173/2013), dB(A)
|
Maximum Construction Noise Levels in the Reporting
Month
(September 2024),
Leq (30min) dB(A)
|
|
CM1 – Nga Lai House, Yau Lai Estate Phase
1, Yau Tong
|
N1102
|
73
|
71
|
|
CM2 – Bik Lai House, Yau Lai Estate Phase
1, Yau Tong
|
N1204
|
75
|
71
|
|
CM3 – Block S, Yau Lai Estate Phase 5, Yau Tong
|
N2105
|
75
|
70
|
|
CM4 – Tin Hau Temple, Cha Kwo Ling
|
N3101a
|
73
|
59
|
|
CM5 – CCC Kei Faat Primary School, Yau
Tong
|
N4101
|
71
|
67
|
3.15
The results at CM1, CM2, CM3,
CM4 and CM5 were lower than the maximum predicted mitigated construction noise
level in EIA Report, AEIAR-173/2013 (as approved in 2013). No Limit level
exceedance was recorded in the reporting period.
4.
WATER QUALITY
Monitoring
Requirement
Groundwater Quality
4.1
The existing groundwater
quality monitoring programme has been suspended as the monitoring results had
been deemed non-representative of the impact from the project justified by two
major factors: (1) influence on the monitoring results from non-project related
factors, such as anthropogenic activities and natural phenomenon; and (2) large
separation between the monitoring stations and works area. In addition, as no
alternative locations for the groundwater quality monitoring were available,
the groundwater quality monitoring has been suspended since October 2019 upon
the agreement by EPD.
Marine Water Quality
4.2
According to Section 4.4.3 of
EM&A Manual (AEIAR-173/2013), marine water quality impact monitoring
stations is carried out during marine construction for TKOLTT reclamation.
Since the construction of Cha Kwo Ling Tunnel from the end of Trunk Road T2 to
the TKOLTT at the Eastern Ventilation Building does not involve reclamation,
the marine water quality monitoring programme stated in Section 4.4 of the
EM&A Manual (AEIAR-173/2013) is therefore not applicable to Contract No.
ED/2018/04.
Groundwater Level Monitoring (Piezometer
Monitoring)
4.3
According to Section 4.1.2 of
EM&A Manual (AEIAR-173/2013), daily piezometer monitoring will be carried
out on a daily basis when any tunnel construction activities are carried out
within +/- 50m of the piezometer gate in plan. As the construction works of Cha
Kwo Ling Tunnel from the end of Trunk Road T2 to the TKOLTT at the Eastern
Ventilation Building is approximately 120m away from the piezometer gate in
plan, the piezometer monitoring programme stated in Section 4.2 of the EM&A
Manual (AEIAR-173/2013) is therefore not applicable to Contract No. ED/2018/04.
5.
WASTE MANGEMENT
5.1
According to Section 5.1.2 of
the EM&A Manual (AEIAR-173/2013), Waste materials generated during
construction activities, such as construction and demolition (C&D)
materials and general refuse, are recommended to be audited at regular
intervals (at least quarterly) to ensure that proper storage, transportation
and disposal practices are being implemented by the Contractor. To fulfil this
requirement, site audits are carried out on a weekly basis. The summaries of
site audits are attached in Appendix I.
5.2
With reference to relevant
handling records of this Project, the quantities of different types of waste
generated in the reporting month are summarised and presented in Appendix H.
6.
ECOLOGY
Post-Translocation Coral Monitoring
6.1
Post-translocation monitoring
survey is recommended in Section 6.2.5 of the EM&A Manual (AEIAR-173/2013),
to audit the success of coral translocation. Since the construction of Cha Kwo
Ling Tunnel from the end of Trunk Road T2 to the TKOLTT at the Eastern
Ventilation Building does not involve any marine works in the concerned area
mentioned in Section 6.1.2 of the EM&A Manual (AEIAR-173/2013), the
post-translocation monitoring survey stated in Section 6.2.5 of the EM&A
Manual (AEIAR-173/2013) is therefore not applicable to Contract No. ED/2018/04.
7.
FISHERIES
7.1
According to Section 7.1.3 of
EM&A Manual (AEIAR-173/2013), no specific fisheries monitoring programme is
required during the construction phase.
7.2
The implementation of the
mitigation measures stated in the Water Quality Impact Assessment (Refer to
Section 5 of EIA Report (AEIAR-173/2013)) will be audited as part of the
EM&A procedures during the construction period. The summaries of site audits
are attached in Appendix I.
8.
CULTURAL HERITAGE
8.1
According to Condition 3.7 of
EP-458/2013/C and Section 8.2.1 of the EM&A Manual (AEIAR-173/2013),
monitoring of vibration impacts was conducted when the construction works
are less than 100m from the Built Heritage in close proximity of the worksite,
namely the Cha Kwo Ling Tin Hau temple. Tilting and settlement monitoring
should be applied on the Cha Kwo Ling Tin Hau Temple.
8.2
As the construction works of
Cha Kwo Ling Tunnel from the end of Trunk Road T2 to the TKOLTT at the Eastern
Ventilation Building are located more than 100m away from the Cha Kwo Ling Tin
Hau temple, the vibration impact monitoring stated in Section 8.3.1 of the
EM&A Manual (AEIAR-173/2013) is not applicable to Contract No. ED/2018/04.
Mitigation Measures for Cultural Heritage
8.3
According to Condition 3.6 of
EP-458/2013/C, to prevent damage to Cha Kwo Ling Tin Hau Temple and its Fung
Shui rocks (Child-given rocks) during the construction phase, a temporarily
fenced-off buffer zone (Rocks buffer zone is 5 m from the edge of Rocks and 15m
from the edge of Rocks alter) with allowance for public access (minimum 1 m)
around the temple and the Fung Shui rocks shall be provided. The open yard in
front of the temple should be kept as usual for annual Tin Hau festival.
8.4
As there is a large buffer
distance from the current works to Cha Kwo Ling Tin Hau Temple and the Fung
Shui rocks (Child-given rocks), the temporarily fenced-off rocks buffer zone
and from the edge of Rocks alter is not required. The fenced-off rocks buffer
zone would be implemented when there are construction activities in vicinity of
the cultural heritage.
9.
LANDSCAPE AND VISUAL IMPACT
9.1
According to Section 9.3 of the
EM&A Manual (AEIAR-173/2013), landscape and visual mitigation measures
during the construction phase shall be checked to ensure that they are fully
realized and implemented on site.
9.2
Site audits were carried out on
a weekly basis to monitor and audit the timely implementation of landscape and
visual mitigation measures listed in “Environmental Mitigation Implementation
Schedule (EMIS)” (shown in Appendix J).
9.3
The implementation of landscape
and visual mitigation measures was checked by a registered landscape architect.
No non-compliance of the landscape and visual impact was recorded in the
reporting month. Details of the audit findings and implementation status are
presented in Appendix I.
10.
LANDFILL GAS MONITORING
Monitoring
Requirement
10.1 In accordance with Section 10.1.1 of the EM&A Manual
(AEIAR-173/2013), monitoring of landfill gas is required for construction works
within the Sai Tso Wan Landfill Consultation Zone during the construction
phase. Since no excavation activity for this Project was carried out within the
Sai Tso Wan Landfill Consultation Zone in the reporting month, no landfill gas
monitoring is required.
11.
HAZARD TO LIFE
11.1 According to Section 11.1.1 of EM&A Manual (AEIAR-173/2013), as
no overnight storage of explosive on site is required for the construction of
the Project, the hazard assessment is deemed not necessary. Thus, environmental
monitoring and audit is not required.
12.
ENVIRONEMNTAL AUDIT
Site
Audits
12.1 Site audits were carried out on a weekly basis to monitor the timely
implementation of proper environmental management practices and mitigation
measures in the Project site. The summaries of site audits are attached in Appendix
I.
12.2 Site audits were conducted on 05, 12, 19 & 26 September 2024 in the reporting month. Site inspection of
the IEC was conducted on 26 September 2024. No non-compliance was observed
during the site audit.
Implementation
Status of Environmental Mitigation Measures
12.3 According to Environmental Permits, the approved EIA Reports
(Register No.: AEIAR-174/2013 and AEIAR-173/2013), and the EM&A Manuals of
the Project (AEIAR-174/2013 and AEIAR-173/2013), the mitigation measures
detailed in the documents are recommended to be implemented during the
construction phase. An Environmental Mitigation Implementation Schedule (EMIS)
is provided in Appendix J.
12.4 The ET weekly site inspections were carried out during the reporting
month and the observations and recommendations are summarized in Table 12.1.
Refer to Appendix I for the site inspection summary reports in the
reporting month.
Table 12.1 Observations and
Recommendations of Site Audit
|
Parameters
|
Date
|
Observations and Recommendations
|
Follow-up
|
|
Air Quality
|
26 September 2024
|
The Contractor is reminded to cover the cement bags
which is more than 20 bags per stack.
|
Follow up in
the next reporting month
|
|
Noise
|
N/A
|
There was no observation in the reporting period.
|
N/A
|
|
Water Quality
|
N/A
|
There was no observation in the reporting period.
|
N/A
|
|
Ecology
|
N/A
|
There was no observation in the reporting period.
|
N/A
|
|
Landscape and Visual
|
N/A
|
There was no observation in the reporting period.
|
N/A
|
|
Waste/Chemical Management
|
N/A
|
There was no observation in the reporting period.
|
N/A
|
|
Permits /Licences
|
N/A
|
There was no observation in the reporting period.
|
N/A
|
Implementation Status of Event and
Action Plans
12.5 The Event and Action Plans for air quality and construction noise
monitoring, and the Limit Levels and Action Plan for landfill gas monitoring
are presented in Appendix L.
Air Quality Monitoring
●
No Action/Limit Level
exceedance for 1-hour TSP monitoring was recorded in the reporting month.
●
No Action Level exceedance for
24-hour TSP monitoring was recorded in the reporting month and no Limit Level
exceedance for 24-hour TSP monitoring was recorded in the reporting month.
Construction Noise Monitoring
●
One (1) Action Level exceedance was recorded due
to the documented complaint in the reporting month.
●
No Limit Level exceedance for
construction noise monitoring was recorded in the reporting month.
13.
ENVIRONMENTAL NON-COMFORMANCE
Summary
of Complaint, Warning, Notification of any Summons and Successful Prosecution
13.1 The summaries of environmental complaint, warning, summon and
notification of successful prosecution for the Project is presented in Appendix M.
Summary
of Exceedance
13.2 The summary of exceedance record in the reporting month is shown in Appendix N.
14.
FUTURE KEY ISSUES
14.1 Tentative construction programmes for the next three months are
provided in Appendix O.
14.2 Major site activities undertaken for the coming months are
summarized as follows:
Table 14.1 Site Activities
and the Key Environmental Issues in the next Reporting Period
|
Contract No. and Project Title
|
Site
Activities (October 2024)
|
Key Environmental Issues
|
|
ED/2018/04
- Trunk Road T2 and Infrastructure Works for Developments at South Apron
|
1)
East Ventilation Building RC
Structure
2)
East Ventilation Building
ABWF
3)
East Ventilation Building E&M works
4)
East Bound – Additional
Cavern Excavation
5)
East Bound – Type C Crown
6)
East Bound – Type A1 OHVD
7)
West Bound – Pre-tunnel invert excavation
|
·
Wheel washing bay at site
exits;
·
Temporary noise barriers for
PMEs;
·
Sedimentation tank for
settling muddy water; and
·
Make sure open stockpiles are
covered during rainstorm.
|
|
ED/2020/03
- Trunk Road T2 - Traffic Control And Surveillance
System (TCSS) and Associated Works (1)
|
N/A
|
|
Notes:
(1): No major
construction work was undertaken during reporting month.
N/A: Not
applicable
|
14.3 The tentative environmental monitoring schedule for the next month
is shown in Appendix D.
15.
CONCLUSION AND RECOMMENDATION
Conclusions
15.1 This is the 53rd Monthly EM&A Report which
presents the EM&A works undertaken during the reporting month in accordance
with the EM&A Manual (AEIAR-173/2013) and the requirement under EP.
Air Quality Monitoring
15.2 No Action/Limit Level exceedance was recorded for 1-hour TSP
monitoring in the reporting month.
15.3 No Action Level exceedance for 24-hour TSP monitoring was recorded
in the reporting month and no Limit Level exceedance for 24-hour TSP monitoring
was recorded in the reporting month.
Construction Noise Monitoring
15.4 One (1)
Action Level exceedance was recorded due to documented complaint in the
reporting month.
15.5 No Limit Level exceedance for construction noise monitoring was
recorded in the reporting month.
Site Audit
15.6 Four (4)
ET joint weekly environmental site inspections were conducted for the Contract
No. ED/2018/04 in the reporting month.
Complaint, Notification of Summons and Successful Prosecution
15.7 One (1)
environmental complaint was received in the reporting period. No notifications
of summons and successful prosecutions were received in the reporting month.
Recommendations
15.8
According to the environmental
audit performed in the reporting month, the following recommendations were
made:
ED/2018/04
Air Quality
·
Cement bags with more 20 bags per stack should be covered by impervious sheeting.
