1.
This is the 53rd Environmental Monitoring and Audit (EM&A) Report prepared by
the Environmental Team (ET), Cinotech Consultants
Ltd., for “Trunk Road T2”. This report summarized the
monitoring results and audits findings of the EM&A programme under the issued
Environmental Permit (EP) No. EP-451/2013 and in accordance with the EM&A
Manual (AEIAR-174/2013) during the reporting month of July 2024.
2.
The main works of each works
contracts 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
|
·
West Ventilation Building
ABWF, E&M
·
Launching Shaft / Cut &
Cover RC Structure
·
Westbound TBM Tunnelling
·
Eastbound TBM Tunnelling
·
EB Service Gallery
Installation
·
WB Service Gallery
Installation
·
CP Tympanum Construction
·
Cross Passage Finishing
·
Sub-sea Corbel Construction
·
Sub-sea Crown Fire Board
·
Sub-sea Road Level Fire Board
·
Sub-sea OHVD Soffit Fire
Board
·
Sub-sea OHVD Slab
Installation
·
Sub-sea Parapet Installation
·
SUS Remaining Internal Wall
·
SUS Fire Board Installation
·
SUS Skin Wall
·
SUS Bracket Installation
·
Tunnel Segment Delivery
·
MiMEP Module Installation
·
Sub-sea E&M Bracket
Drilling
·
Sub-sea E&M Bracket
Installation
·
Sub-sea E&M Installation
|
|
ED/2020/03
|
Trunk Road T2 - Traffic Control And
Surveillance System (TCSS) and Associated Works (1)
|
·
WVB Installation of cable
containment
·
Tunnel: Site survey
|
|
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
|
Air Quality
·
Water spraying regularly on
construction site area to avoid dust generation.
·
Excavated dusty materials
were covered by impervious sheets.
Noise
·
Air compressor was operated
with door closed and have valid noise labels.
·
Use of Quality Powered
Mechanical Equipment (QPME)
·
Erecting noise barriers on
site to minimize noise impact generated from breaking activities.
Water Quality
·
WetSep was constructed to treat the surface runoff prior to discharge.
Landscape and Visual
·
Tree protection zone was
fenced off to protect the existing tree.
|
|
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
|
4.
Exceedance of Action/Limit levels
during the reporting month (July 2024) and the investigation results and/or
follow-up actions:
Air Quality Monitoring
·
No Action Level exceedance for
24-hour TSP was recorded.
·
No Limit Level exceedance for
24-hour TSP was recorded.
Construction Noise
Monitoring
·
No Limit Level exceedance for
day time construction noise was recorded in this reporting month.
·
No Action Level exceedance was recorded in this reporting month.
Landscape and Visual
Monitoring and Audit
·
No non-compliance of the
landscape and visual impact was recorded in the reporting month. The
implementation of landscape and visual and mitigation measures was checked by a
Registered Landscape Architect (RLA) during the environmental site inspections.
Table III Summary of
Complaint/Summons/Prosecution in the Reporting Month
|
Event
|
Event Details
|
Follow-up/ Remedial Actions
|
Status/ Remarks
|
|
Number
|
Brief Description
|
|
Complaints Received
|
1
|
A complaint
regarding suspected wastewater discharged in the vicinity of Hong Kong
Children Hospital was received by 1823.
|
·
The complaint is considered as non-project related.
·
There is no direct evidence that the discharged yellowish
wastewater was caused by the construction activities.
·
The following recommendations are made to contractor to
further enhance the mitigation measures:
1) Conduct regular maintenance for wastewater treatment
facilities to maintain the quality of effluent.
2) Conduct regular water quality monitoring.
3) Carry out regular visual inspection to the Kai Tak
Approach Channel (near the outfall of discharge point) to prevent illegal
discharge of untreated water.
|
Closed
|
|
Notification of Summons and Prosecutions
Received
|
0
|
-
|
-
|
-
|
|
Public Engagement Activities
|
0
|
-
|
-
|
-
|
5.
No reporting change in this reporting month.
6.
The key works or activities will be anticipated in
the next reporting period are as follows:
Table IV Summary Table for Site
Activities in the next Reporting Period
|
Contract
No. and Project Title
|
Site Activities (August 2024)
|
Key
Environmental Issues
|
|
ED/2018/04 - Trunk Road T2 and Infrastructure Works
for Developments at South Apron
|
·
West Ventilation Building ABWF, E&M
·
Launching Shaft / Cut & Cover RC Structure
·
Westbound TBM Tunnelling
·
Eastbound TBM Tunnelling
·
EB Service Gallery Installation
·
WB Service Gallery Installation
·
CP Tympanum Construction
·
Cross Passage Finishing
·
Sub-sea Corbel Construction
·
Sub-sea Crown Fire Board
·
Sub-sea Road Level Fire Board
·
Sub-sea OHVD Soffit Fire Board
·
Sub-sea OHVD Slab Installation
·
Sub-sea Parapet Installation
·
SUS Remaining Internal Wall
·
SUS Fire Board Installation
·
SUS Skin Wall
·
SUS Bracket Installation
·
SUS E&M Installation
·
Tunnel Segment Delivery
·
MiMEP
Module Installation
·
Sub-sea E&M Bracket Drilling
·
Sub-sea E&M Bracket Installation
·
Sub-sea E&M Installation
|
(A)
/ (B) / (C) / (D)
|
|
ED/2020/03 - Trunk Road T2 - Traffic Control And
Surveillance System (TCSS) and Associated Works(1)
|
·
Mockup inside tunnel – cable containment, ALCS, CCTV, VD
·
Mockup installation inside Service Gallery – PA speaker
·
F& IU Audit on 9 Aug 2024
·
Material delivery: Power cable, fibre cable
|
|
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.
|
7.
According to the EM&A Manual (AEIAR-174/2013),
the number and location of the monitoring stations and parameters should be
reviewed in every six months, or on as -needed basis, in order to cater for any
changes in the surrounding environmental and the nature of works in progress.
The latest review was conducted in July 2024 and the review of status and
location of monitoring stations are summarized as follow:
Table V Summary Table for Review of
Status and Location of Monitoring Stations
|
Monitoring
Station ID
|
Review
Status
|
Follow-up
Action/ Recommendation
|
|
KTD 2d
|
ET has reviewed the status and location of KER1, KTD 1, KTD2d,
CKL1 and CKL2. To conclude, the environmental monitoring conducted at KER1,
KTD 1, KTD2d, CKL 1 and CKL 2 are appropriate, and the monitoring results
reflect how the sensitive receiver(s) is/are impacted by the construction
activities of the Project.
|
N/A
|
|
KER1
|
|
KTD 1
|
|
CKL 1
|
|
CKL 2
|
|
N/A: Not Applicable
|
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 3.4km long with
about 3.1km 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 at Kai Tak area under the Contract
ED/2018/04 and ED/2020/03 are governed by the EP-451/2013 and EM&A Manual
(AEIAR-174/2013). The work areas of the Trunk Road T2 Project are shown in Figure 1 and the works to be executed
under each Contract and corresponding EP 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
|
Monitoring
Works in Kai Tak under EP-451/2013
1.4
Under
Contract No. KL/2014/03 – Kai Tak Development – Stage 3 Infrastructure Works
for Development at the Southern Part of the Former Runway (“T2 Advance Works”),
the baseline monitoring works in Kai Tak under the EM&A Manual
(AEIAR-174/2013) were conducted by the Environmental Team
(ET) for the Contract
No. KL/2014/03 at the approved relocated monitoring locations (EPD reference:
EP2/K19/A/21 pt.5), namely KTD1a, KTD2a & KER1a. During the impact
monitoring period, monitoring locations KTD 2a and KER 1a were relocated to new
locations, i.e. KTD 2b and KER 1b (EPD reference: ( ) in EP2/K19/A/21 pt. 6 and (
) in EP2/K19/A/21 pt. 5) respectively. Location KTD2b
was then further relocated to location KTD2c, the proposal of such relocation
was submitted to EPD on 24 March 2020 and was approved by EPD on 6 April 2020
(EPD reference: ( ) in EP2/K19/A/21 pt.7). The
aforementioned relocation was effective from 9 April 2020. Since the major part
of work under Contract No. KL/2014/03 has been completed and monitoring works
conducted by the ET of
Contract No. KL/2014/03 was determined to be ceased,
the impact monitoring
within the Kai Tak area was then handed over to the ET of Contract No.
ED/2018/04 on 1 August 2020.The monitoring location has been reviewed and
updated to obtain the data with higher representative based on several
conditions, such as distance between monitoring location and the sensitive
receiver, non-project related interference, obstruction to the construction
works on site and the power supply problem. The monitoring location KTD1a and
KER1b has been updated to the monitoring location KTD1 and KER1 on 3 August
2020, where are the original location as proposed in the EM&A manual
(AEIAR-174/2013). And the monitoring location KTD2c was remained unchanged after
the aforementioned review. Location KTD2c was then
further relocated to location KTD2d, the proposal of such relocation was
submitted on 9 March 2021 and was approved by EPD on 27 March 2021 (EPD
reference: ( ) in EP2/K19/A/21 pt.8). The
aforementioned relocation was effective from 24 May 2021. The impact monitoring for the three stations KTD1,
KTD2d and KER1 are currently conducted by the ET of T2 Main Works
Monitoring Works in Cha Kwo Ling under
EP-451/2013
1.5
The environmental impact of the remaining works in Cha Kwo Ling,
under EP-451/2013, shall be monitored at the two proposed stations, namely
CKL1, CKL2, in accordance to the EM&A Manual (AEIAR-174/2013). The impact monitoring for the two proposed stations
shall be conducted by the ET of T2 Main Works.
1.6
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”) and “Trunk Road T2
–Traffic Control & Surveillance System (TCSS) and Associated Works”.
1.7
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 July 2024.
1.8
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)
1.9
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
|
1.10
The Organizational Structure for Environmental Management is shown in Figure 1.2.
1.11
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
|
·
West Ventilation Building ABWF, E&M
·
Launching Shaft / Cut & Cover RC Structure
·
Westbound TBM Tunnelling
·
Eastbound TBM Tunnelling
·
EB Service Gallery Installation
·
WB Service Gallery Installation
·
CP Tympanum Construction
·
Cross Passage Finishing
·
Sub-sea Corbel Construction
·
Sub-sea Crown Fire Board
·
Sub-sea Road Level Fire Board
·
Sub-sea OHVD Soffit Fire Board
·
Sub-sea OHVD Slab Installation
·
Sub-sea Parapet Installation
·
SUS Remaining Internal Wall
·
SUS Fire Board Installation
·
SUS Skin Wall
·
SUS Bracket Installation
·
Tunnel Segment Delivery
·
MiMEP Module Installation
·
Sub-sea E&M Bracket Drilling
·
Sub-sea E&M Bracket Installation
·
Sub-sea E&M Installation
|
|
ED/2020/03
|
Trunk Road
T2 – Traffic Control And Surveillance System (TCSS)
and Associated Works (1)
|
· WVB Installation of cable containment
· Tunnel: Site survey
|
|
Notes:
(1): No major construction work was undertaken
during reporting month.
N/A: Not applicable
|
1.12
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.
1.13
The advice on the
implementation status of environmental protection and pollution
control/mitigation measures is summarized in Section 10 of this report.
1.14
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 July 2024.
1.15
All permits/licenses obtained for the Project are summarized
in Table 1.3.
Table 1.3 Summary of
Environmental License and Permit
|
Contract No.
|
Permit / License No.
|
Valid Period
|
Status
|
|
From
|
To
|
|
Environmental
Permit (EP)
|
|
N/A
|
EP-451/2013
|
19 Sep 2013
|
N/A
|
Valid
|
|
Notification pursuant to Air Pollution
(Construction Dust) Regulation
|
|
ED/2018/04
|
Ref. No.: 451120
|
20 Nov 2019
|
N/A
|
Valid
|
|
ED/2020/03
|
Ref. No.: 483143
|
15 Aug 2022
|
N/A
|
Valid
|
|
Billing Account for Construction Waste
Disposal
|
|
ED/2018/04
|
A/C No.: 7036016
|
09 Dec 2019
|
N/A
|
Valid
|
|
ED/2020/03
|
A/C No.: 7043158
|
31 Jan 2022
|
N/A
|
Valid
|
|
Billing Account for Vessel Disposal
|
|
ED/2018/04
|
A/C No.: 7037747 (Application No.: CEDD01228)
|
11 Apr 2024
|
25 Jul 2024
|
Valid until 25 Jul 2024
|
|
A/C No.: 7037747 (Application No.: CEDD01244)
|
25 Jul 2024
|
25 Oct 2024
|
Valid
|
|
Construction Noise Permit
|
|
ED/2018/04
|
CNP No. (For Portion Q): GW- RE0309-24
|
21 Mar 2024
|
31 Aug 2024
|
Valid
|
|
CNP No. (For Depressed
Road): GW-RE0447-24
|
30 Apr 2024
|
29 Oct 2024
|
Valid
|
|
CNP No. (For Launching
Shaft and Barging Point): GW-RE0701-24
|
14 Jun 2024
|
05 Dec 2024
|
Valid
|
|
CNP No. (For Kai Fuk Road):
GW-RE0826-24
|
16 Jul 2024
|
12 Sep 2024
|
Valid
|
|
Wastewater Discharge License
|
|
ED/2018/04
|
WT00036183-2020 (For Depressed Road Area)
|
27 Jul 2020
|
31 Jul 2025
|
Valid
|
|
WT00039117-2021 (For Site Office and Support Area)
|
28 Sep 2021
|
30 Sep 2026
|
Valid
|
|
WT00036228-2020 (For Launching Shaft)
|
10 Nov 2021
|
31 Jul 2025
|
Valid
|
|
WT10001495-2023 (For TBM Consumable Storage Area)
|
12 Mar 2024
|
31 Mar 2029
|
Valid
|
|
Chemical Waste Producer License
|
|
ED/2018/04
|
WPN: 5213-286-B2557-03
|
09 Mar 2020
|
N/A
|
Valid
|
|
Marine Dumping Permit
|
|
ED/2018/04
|
EP/MD/24-083
|
5 Apr 2024
|
4 Jul 2024
|
Valid until 4 Jul 2024
|
|
EP/MD/25-012
|
5 Jul
2024
|
4 Oct
2024
|
Valid
|
2.1
According to the EM&A
Manual (AEIAR-174/2013), 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 24-hour TSP monitoring. In case of complaints,
1-hour TSP monitoring should be conducted at least three times in every six
days when the highest dust impacts are likely to occur. Appendix A shows the
established Action/Limit Levels for the environmental monitoring works.
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.
2.3
The monitoring location at Kai
Tak area has been reviewed and updated to obtain the data with higher
representative based on several conditions, such as distance between monitoring
location and the sensitive receiver, non-project related interference, obstruction
to the construction works on site and the power supply problem. The monitoring
location KTD1a and KER1b has been updated to KTD1 and KER1 respectively, where
are the original location as proposed in the EM&A manual (AEIAR-174/2013).
And the monitoring location KTD2c was remained unchanged after the
aforementioned review. Monitoring location KTD2c was then further relocated to
KTD2d after the review of status and location of monitoring station conducted
in between February and March 2021.
Table 2.1 Air Quality Monitoring Locations
|
Monitoring Stations
|
Location
|
|
KTD1
|
Centre of Excellence in Paediatrics
(Children’s Hospital)
|
|
KTD2d
|
Next to the SOR Office of Trunk Road T2 in
Kai Tak Area
|
|
KER1
|
Future Residential Development at Kerry
Godown
|
|
CKL1
|
Flat 121 Cha Kwo Ling Village
|
|
CKL2
|
Flat 103 Cha Kwo Ling Village
|
|
|
2.4
Table 2.2 summarizes the monitoring parameters,
monitoring period and frequencies of impact air quality monitoring. The
monitoring schedule is shown in Appendix
B.
Table 2.2
Frequency and Parameters of Air Quality Monitoring
|
Monitoring
Stations
|
Parameter
|
Period
|
Frequency
|
|
KTD1, KTD2d,
KER1, CKL1 & CKL2
|
1-hour TSP
|
0700 – 1900
|
3 times per 6 days (as required in
case of complaints)
|
|
KTD1, KTD2d,
KER1, CKL1 & CKL2
|
24-hour TSP
|
24 hours
|
Once every 6
days
|
|
|
2.5
High Volume Samplers (HVS) in
compliance with the specification stipulated in the EM&A Manual (AEIAR-174/2013), Section 2.2.1.4, 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.
2.6
Wind data monitoring equipment
was set at rooftop (about 41/F) of Yau Lai
Estate Bik Lai House, Lam Tin for logging wind speed and
wind direction such that the wind sensors were clear of obstructions or
turbulence caused by building. The wind data monitoring equipment was
re-calibrated at least once every six months and the wind directions were
divided into 16 sectors of 22.5 degrees each. Wind data is attached in Appendix D.
2.7
Table 2.3 summarizes the equipment used
for air quality monitoring. Copies of calibration certificates are attached in Appendix C.
Table
2.3
Air Quality Monitoring Equipment
|
Equipment
|
Model
|
Quantity
|
|
HVS Sampler
|
TISCH Model: TE-5170 (Serial no. 0723, 1956, 10595, 1316, 5280)
|
5
|
|
Calibrator
|
TISCH Model: TE-5025A (Serial no. 3864)
|
1
|
|
Wind Anemometer
|
Davis Weather Monitor II, Model no. 7440 (Serial no. MC01010A44)
|
1
|
1-hour TSP Monitoring
Measuring Procedures
2.8
The measuring procedures of the 1-hour dust
meter are in accordance with the Manufacturer’s Instruction Manual as follows:
(Sibata Model No.:
LD-3B/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
2.9
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
2.10
High volume samplers (HVS) (TISCH Model: TE-5170) complete with
appropriate sampling inlets was 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). Moreover, the HVS also met all the requirements in Section 2.2 of the Annex II Specification.
2.11
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
2.12
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-174/2013). 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 (High
Precision Chemical Testing 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
2.13
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.
2.14
Impact air quality
monitoring was conducted at five monitoring stations as scheduled. The
monitoring schedule is shown in Appendix
B.
2.15
No Action and no Limit
Level exceedance was recorded for 24-hour TSP monitoring in the reporting
month. No exceedance of 24-hour TSP were considered as project related and no exceedance of 24-hour TSP were
considered as non-project related.
Details of the exceedance are presented in Appendix
M.
2.16
The air temperature, relative humidity, and the precipitation data were obtained from
daily extracts of Hong Kong Observatory Climate Information Service. This
weather information for the reporting month is summarized in Appendix D.
2.17
The monitoring data and
graphical presentations of 24-hour TSP monitoring results are shown in Appendix F.
2.18
According to field observations observed 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
|
|
KTD 1 - Centre of Excellence in Paediatrics
(Children’s Hospital)
|
·
Project
related construction activities (i.e., Loading and unloading of C&D
wastes, drilling, crushing of material);
·
Vehicle
movement in the site;
·
Construction
activities at the nearby construction sites of New Acute Hospital; and,
·
Road
traffic along Shing Fung Road, Shing Cheong Road, Cheung Yip Street, Kai Hing
Road and Kwun Tong Bypass.
|
|
KER 1 – Future Residential Development at Kerry
Godown
|
|
KTD 2d – Next to the SOR Office of Trunk Road T2
in Kai Tak Area
|
·
Project
related construction activities (i.e., Loading and unloading of C&D
material, crushing of material);
·
Vehicle
movement in the site; and,
·
Non-project
related construction activities (i.e excavating
work, Loading and unloading of C&D wastes at the nearby construction site
of Additional District Cooling System at Kai Tak Development, Paul Y.
Engineering.)
|
|
CKL1 - Flat 121 Cha Kwo Ling Village
|
·
Road
Traffic along Cha Kwo Ling Road
|
|
CKL2 - Flat 103 Cha Kwo Ling Village
|
·
Road
Traffic along Cha Kwo Ling Road
|
|
|
2.19
The air monitoring data was compared with
the predictions in Table 4.14 of EIA Report, AEIAR-174/2013 (as approved in
2013) as summarised in Table 2.6 for
24-hour TSP.
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-174/2013),
μg/m3
|
Maximum 24-hr TSP
Concentration
in the Reporting Month
(July 2024),
μg/m3
|
|
KTD 1 - Centre of Excellence
in Paediatrics (Children’s Hospital)
|
KTD3
|
126
|
16.0
|
|
KTD 2d – Next to the SOR Office of Trunk Road T2
in Kai Tak Area
|
N/A
(1)
|
N/A
(1)
|
95.2
|
|
KER 1 – Future
Residential Development at Kerry Godown
|
KTD6
|
169
|
121.0
|
|
CKL1 - Flat 121 Cha Kwo Ling Village
|
N/A
(1)
|
N/A
(1)
|
101.4
|
|
CKL2 - Flat 103 Cha Kwo Ling Village
|
N/A
(1)
|
N/A
(1)
|
97.3
|
Remarks:
(1)
No 24-hr TSP concentration was predicted in EIA
Report (AEIAR-174/2013)
2.20
In the reporting month,
the 24-hour TSP concentration at KER1 and KTD1 were lower than the prediction
in the EIA Report, AEIAR-174/2013 (as approved in 2013). No Action and
Limit level exceedance for 24-hour TSP was recorded in the reporting period.
Monitoring
Requirement
3.1
According to the
EM&A Manual (AEIAR-174/2013), 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.
3.2
Noise monitoring was conducted at
five designated monitoring stations, namely KTD1, KTD2d, KER1, CKL1 and CKL2 in
the reporting period. Table 3.1 and Figure 2 show the locations of these
stations.
3.3
The monitoring location at Kai
Tak area has been reviewed and updated to obtain the data with higher
representative based on several conditions, such as distance between monitoring
location and the sensitive receiver, non-project related interference, obstruction
to the construction works on site and the power supply problem. The monitoring
location KTD1a and KER1b has been updated to KTD1 and KER1 respectively, where
are the original location as proposed in the EM&A manual (AEIAR-174/2013).
And the monitoring location KTD2c was remained unchanged after the
aforementioned review. Monitoring location KTD2c was then further relocated to
KTD2d after the review of status and location of monitoring station conducted
in between February and March 2021.
Table 3.1 Noise Monitoring Stations
|
Monitoring Stations
|
Location
|
|
KTD1
|
Centre of Excellence in Paediatrics
(Children’s Hospital)
|
|
KTD2d
|
Next to the SOR Office of Trunk Road T2 in
Kai Tak Area
|
|
KER1
|
Future
Residential Development at Kerry Godown
|
|
CKL1
|
Flat 121 Cha Kwo Ling Village
|
|
CKL2
|
Flat 103 Cha Kwo Ling Village
|
|
|
3.4
Table 3.2 summarizes the monitoring
parameters, frequency and total duration of monitoring. The noise monitoring schedule is shown
in Appendix B.
Table
3.2
Frequency and Parameters of Noise Monitoring
|
Monitoring Stations
|
Time Period
|
Duration
|
Frequency
|
Parameter
|
Measurement
|
|
KTD1
|
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
|
|
KTD2d
|
Free Field Measurement
|
|
KER1
|
Free Field Measurement
|
|
CKL1
|
Free Field Measurement
|
|
CKL2
|
Free Field Measurement
|
3.5
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 within the reporting period. Copies of calibration
certificates are attached in Appendix G.
Table
3.3
Noise Monitoring Equipment
|
Equipment
|
Model
|
Quantity
|
|
Integrating Sound Level Meter
|
BSWA 308 (Serial no. 580238, 580156)
SVAN 957 (Serial no. 21455,
23852)
|
4
|
|
Calibrator
|
ST-120 (Serial no. 181001636)
AWA6021A (Serial no. 1023064)
|
2
|
3.6
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.
3.7
The microphone head of the
sound level meter and calibrator were cleaned with a soft cloth at quarterly
intervals.
3.8
The sound level meter and
calibrator were checked and calibrated at yearly intervals.
3.9
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.
3.10
Impact noise monitoring was
conducted at five monitoring stations as scheduled. The monitoring
schedule is shown in Appendix B. No
Action and Level exceedance was recorded for day time construction noise
monitoring in the reporting month.
3.11
Noise monitoring results and
graphical presentations are shown in Appendix
H.
3.12
According to field observations
observed 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
|
|
KTD 1
|
·
Project
related construction activities (Loading and unloading of C&D waste,
travel of vehicles, use of PME and other plants, and other construction
activities);
·
Vehicle
movement in the site;
·
Road
traffic along Shing Cheong Road; and,
·
Non-project
related construction activities at the nearby construction site of New Acute
Hospital.
|
|
KTD 2d
|
·
Project
related construction activities (Loading and unloading of C&D waste,
travel of vehicles, use of PME and other plants, and other construction
activities);
·
Vehicle
movement in the site; and,
·
Non-project
related construction activities. (i.e excavating
work, Loading and unloading of C&D wastes at the nearby construction site
of Additional District Cooling System at Kai Tak Development, Paul Y.
Engineering.)
|
|
KER 1
|
·
Road
traffic along Kai Hing Road.
·
Project
related construction activities (Travel of vehicles, use of PME and other
plants, and other construction activities)
|
|
CKL1
|
·
Road
traffic along Cha Kwo Ling Road.
|
|
CKL2
|
·
Road
traffic along Cha Kwo Ling Road
|
3.13
The baseline noise level and
the Noise Limit Level at each designated noise monitoring station are presented
in Table 3.5.
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)
|
|
KTD1
|
78
|
75
|
|
KTD2d
|
64
|
|
KER1
|
65
|
|
CKL1
|
72.4
|
|
CKL2
|
71.4
|
3.14
The noise monitoring data was
compared with the predictions in Table 5.13 of EIA Report (AEIAR-174/2013) 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-174/2013),
dB(A)
|
Maximum Construction
Noise Levels in the Reporting Month
(July 2024),
Leq (30min) dB(A)
|
|
KTD1 - Centre of
Excellence in Paediatrics (Children’s Hospital)
|
KTD1
|
74
|
71.8
|
|
KTD2d – Next to the
SOR Office of Trunk Road T2 in Kai Tak Area
|
N/A (1)
|
N/A (1)
|
63
|
|
KER1 – Future
Residential Development at Kerry Godown
|
KER1
|
75
|
75
|
|
CKL1 - Flat 121 Cha Kwo Ling
Village
|
CKL4
|
71
|
69
|
|
CKL2 - Flat 103 Cha Kwo Ling
Village
|
CKL5
|
69
|
75
|
|
Remarks:
(1): No Maximum
Predicted Mitigated Construction Noise Levels was predicted in EIA Report
(AEIAR-174/2013)
|
3.15
The result at CKL2 was higher
than the maximum predicted mitigated construction noise level in the EIA
Report, AEIAR-174/2013 (as approved in 2013), this may be due to fluctuations of traffic flow along the traffic flow along Cha Kwo
Ling Road throughout the day. Besides, the
result at KTD1,
KER1 and CKL1 were lower
than the maximum predicted mitigated construction noise level in the EIA
Report. No Action and Limit Level exceedance were
recorded in the reporting period.
4.1
According to Section 4.3.1.1 of
EM&A Manual (AEIAR-174/2013), no water quality monitoring is required during the construction
phase.
4.2
According to Section 4.3.1.5 of
EM&A Manual (AEIAR-174/2013),
compliance site audits are to be undertaken by the Engineer and ET and escorted
by the Contractor to ensure that a valid discharge license has been issued by
the EPD prior to the discharge of the effluent from the construction activities
of the Project site. Monitoring of the quality of the treated effluent from the
works areas should be carried out in accordance with the Water Pollution
Control Ordinance (WPCO) license. The audit results reflect whether the effluent
quality is in compliance with the discharge license requirements, the summaries of site audits are attached in Appendix I.
4.3
In the event of non-compliance,
the responsibilities of the relevant parties are detailed in the Event / Action
plan attached in Appendix J.
5.1
According to Section 5.3.1.1 of
EM&A Manual (AEIAR-174/2013), ET will be required to undertake audit of good site practice for
habitat protection as detailed below. The summaries of site audits are attached
in Appendix I.
·
Avoid damage and disturbance to
the remaining and surrounding natural habitat;
·
Ensure placement of equipment
is within designated areas within the existing disturbed land;
·
Ensure construction activities
are restricted to within the proposed works boundary;
·
Ensure spoil heaps are be
covered at all times;
·
Ensure that disturbed areas are
reinstated immediately after completion of the works; and
·
Ensure enhancement planting
works undertaken.
6
fisheries
6.1
According to Section 6.3.1.2 of
EM&A Manual (AEIAR-174/2013), no specific fisheries monitoring and audit programme is required
during the construction phase.
6.2
The implementation of the water
quality mitigation measures stated in the Water Quality Impact Assessment
(Refer to Section 6 of the EIA Report (AEIAR-174/2013)) will be audited as part of the
EM&A procedures during the construction period and the details are
presented in Section 4.2 of this
Report. The summaries of site audits are attached in Appendix I.
7.1
According to the EM&A
Manual (AEIAR-174/2013), a series of mitigation measures were recommended to ameliorate the
landscape and visual impacts of the Project. The mitigation measures for
construction stage are summarized in Table
7.1 below and provided in Appendix K:
Table 7.1 Construction Phase
Landscape and Visual Mitigation Measures
|
ID No.
|
Landscape and Visual
Mitigation Measure
|
|
CM1
|
All works shall be carefully designed to minimize impacts
on existing landscape resources and visually sensitive receivers. Existing trees
within works area shall be retained and
protected.
|
|
CM2
|
Existing trees of good quality and condition
that are unavoidably affected by the works should be transplanted.
|
|
CM3
|
Not used.
|
|
CM4
|
Not used.
|
|
CM5
|
Large temporary stockpiles of excavated material shall be
covered with unobtrusive sheeting to prevent dust and dirt spreading to
adjacent landscape areas and vegetation, and to create a neat and tidy visual
appearance.
|
|
CM6
|
Construction plant and building material shall be orderly
and carefully stored in
order to create a neat and tidy visual appearance
|
|
CM7
|
Erection of decorative screen hoarding should be designed
to be compatible with
the existing urban context.
|
|
CM8
|
All lighting in construction site shall be carefully
controlled to minimize light pollution and night-time glare to
nearby residences and GIC user. The contractor shall consider
other security measures, which shall minimize the visual impacts.
|
7.2
A specialist Landscape
Sub-Contractor should be employed by the Contractor for the implementation of
landscape construction works and subsequent maintenance operations during the
establishment period. It is proposed that the planting works will be on-site
and the planting should be completed during the construction contract. The
monitoring of the planting establishment should be undertaken for a 12-month
period which could extend throughout the Contractor’s one-year maintenance
period, which will be within the first operational year of the Project.
7.3
All measures undertaken by both
the Contractor and the specialist Landscape Sub-Contractor during the
construction phase and first year of the operational phase shall be audited by
a Registered Landscape Architect (RLA), as a member of the Environmental Team
(ET), on a regular basis to ensure compliance with the intended aims of the
measures. To fulfil the aforementioned requirements, on-site landscape and
visual mitigation measures were audited by RLA in the reporting month.
7.4
According to Section 7.3.1.2 of
the EM&A Manual (AEIAR-174/2013), site audits shall be undertaken at least
once every two weeks throughout the construction period to monitor and audit
the timely implementation of landscape and visual mitigation measures within
the site boundaries of this Project.
7.5
The broad scope of the audit is
detailed below but should also be undertaken with reference to the more
specific checklist provided in Table 7.2. The summaries of site audits
are attached in Appendix I:
·
The
extent of the agreed works areas should be regularly checked during the
construction phase. Any trespass by the Contractor outside the limit of the
works, including any damage to existing trees and soft landscape areas shall be
prohibited;
·
the
progress of the engineering works should be regularly reviewed on site to
identify the earliest practical opportunities for the landscape works to be
undertaken;
·
all
existing trees and vegetation within the study area which are not directly
affected by the works are retained and protected;
·
the
methods of protecting existing vegetation proposed by the Contractor are acceptable
and enforced;
·
preparation,
lifting transport and re-planting operations for any transplanted trees;
·
all
landscaping works are carried out in accordance with the specifications;
·
the
planting of new trees, shrubs, groundcover, climbers, ferns, grasses and other plans,
together with the replanting of any transplanted trees are carried out properly
and within the right season; and
·
all
necessary horticultural operations and replacement planting are undertaken throughout
the Establishment Period to ensure the healthy establishment and growth of
both transplanted trees and all newly established plants.
Table 7.2 Construction Phase
Audit Checklist for Landscape and Visual
Mitigation
Measures
|
Area of Works
|
Items to be Monitored
|
|
Advance planting
|
Monitoring of implementation and maintenance of planting, and
against possible incursion, physical damage, fire, pollution, surface
erosion, etc.
|
|
Protection of all trees
and existing soft landscape areas to be retained
|
Identification and demarcation
of trees / vegetation to be retained, erection of physical protection (e.g.
fencing), monitoring against possible incursion, physical damage, fire,
pollution, surface erosion, etc.
|
|
Clearance of existing
vegetation
|
Identification and
demarcation of trees / vegetation to be cleared, checking of extent of works
to minimise damage, monitoring of adjacent areas against possible incursion,
physical damage, fire, pollution, surface erosion, etc.
|
|
Pruning of trees
|
Identification and
demarcation of trees / vegetation to be pruned, monitoring of extent of
pruning to minimise damage, timing of operations, implementation of all
stages of preparatory and pruning works, and maintenance of pruned
vegetation, etc.
|
|
Plant supply
|
Monitoring of operations
relating to the supply of specialist plant material (including the
collecting, germination and growth of plants from seed) to ensure that plants
will be available in time to be used within the construction works.
|
|
Soiling, planting, etc.
|
Monitoring of
implementation and maintenance of soiling and planting works and against
possible incursion, physical damage, fire, pollution, surface erosion, etc.
|
|
Site fencing and
hoarding
|
Implementation and
maintenance, to ensure compliance with agreed designs and check that it
matches the surrounding environment and does not cause visual intrusion.
|
|
Architectural treatment
of engineering works.
|
Implementation and
maintenance of mitigation measures, to ensure compliance with agreed designs
as applicable.
|
|
Establishment Works
|
Monitoring of
implementation of maintenance operations during Establishment Period.
|
7.6
In the event of non-compliance,
the responsibilities of the relevant parties is
detailed in the Event / Action plan attached in Appendix J.
7.7
In the reporting month, no
non-compliance of the landscape and visual mitigation measures was recorded by
RLA.
8.1
According to Section 8.3.1.1 of
EM&A Manual (AEIAR-174/2013), as a precautionary measure, it is recommended that if any
antiquity or supposed antiquity is discovered during the course of the
excavation works undertaken by the Contractor, the discovery shall be reported
to the AMO immediately and all necessary measures taken to preserve it.
8.2
According to Section 8.3.1.2 of EM&A Manual (AEIAR-174/2013), no EM&A is required during
the construction and operational phase.
9.1
According to Section 9.3.1.1 of EM&A Manual (AEIAR-174/2013), the effective management of waste arisings during the construction
phase will be monitored through the site audit programme. Regular audits and
site inspections should be carried out by the Engineer, ET and Contractor to
ensure that the recommended good site practices and other mitigation measures
are implemented by the Contractor. The summaries of site audits are attached in
Appendix I.
9.2
According to Sections 9.3.1.3
and 9.3.1.4 of
EM&A Manual (AEIAR-174/2013),
documents including licenses, permits, disposal and recycling records should be
reviewed and audited during site audits for the compliance with the legislation
and contract requirements to ensure proper records are being maintained and procedures
undertaken in accordance with the Waste Management Plan.
9.3
With
reference to the relevant handing records of this Project, the quantities of
different types of waste generated in the reporting month are summarized and
presented in the Appendix O.
10.1
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.
10.2
Site audits for each contract
were conducted as follows.
·
ED/2018/04 – Site audit was
conducted on 04, 11, 18
& 25 July 2024 in the reporting month. Site
inspection of the IEC was conducted on 11 July 2024. No
non-compliances were observed during site audits.
·
ED/2020/03 – Site audit was
conducted on 04, 12, 18 & 25 July
2024 in the reporting month. Site inspection of the IEC
was conducted on 12 July
2024. No non-compliance was observed during the site
audits.
10.3
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 K.
10.4
The ET weekly site inspections
were carried out during the reporting month and the observations and
recommendations are summarized in Table
10.1. Refer to Appendix I for
the site inspection summary reports in the reporting month.
Table
10.1 Observations and
Recommendations of Site Audit
|
Parameters
|
Date
|
Observations and
Recommendations
|
Follow-up
|
|
|
NA
|
There
was no observation in the reporting period.
|
N/A
|
|
|
N/A
|
There
was no observation in the reporting period.
|
N/A
|
|
|
04 July 2024
|
|
Mosquitoes repellent has been sprayed by
contractor.
|
|
|
N/A
|
There
was no observation in the reporting period.
|
N/A
|
|
|
N/A
|
There
was no observation in the reporting period.
|
N/A
|
|
|
11 July 2024
|
Drip tray should be provided for chemical containers to prevent
leakage. (TBM Tunnel)
|
Chemical containers
are placed in designated storage area with surrounding impervious material.
|
|
|
N/A
|
There
was no observation in the reporting period.
|
N/A
|
10.5
The Event and Action Plans for air quality, construction noise, and landscape and visual
are presented in Appendix J.
Air Quality Monitoring
·
No Action and no Limit Level
exceedance for 24-hour TSP monitoring was recorded.
Construction Noise
Monitoring
·
No Action and Limit Level
exceedance was recorded in the reporting month.
Landscape and Visual
·
No landscape and visual
non-conformity were recorded.
10.6
According the Section 11.3.2.1
(c) of the EM&A Manual (AEIAR-174/2013), status of required submission
under EP-451/2013 during the reporting period are summarized in Table 10.2.
Table 10.2
Status of Required Submission under Environmental Permit
|
EP Condition
|
Submission
|
Submission Date
|
|
|
|
Condition 2.3
|
Management Organization of Main
Construction Companies for ED/2018/04
|
|
|
Condition 2.3
|
Management Organization of Main
Construction Companies for ED/2020/03
|
|
|
Condition 2.4
|
Design Drawing of the Project
|
|
|
Condition 2.5
|
Landscape Mitigation Plan (Rev. F)
|
|
|
Condition 2.10 (a)
|
Supplementary Contamination Assessment
Plan
|
|
|
Condition 2.10 (b)
|
Supplementary Contamination Assessment
Report
|
|
|
Condition 3.3
|
Updated Baseline Monitoring Report
|
|
|
Condition 3.4
|
Monthly EM&A Report (June 2024) for
ED/2018/04 and ED/2020/03
|
|
11.1
The summaries of environmental complaint,
warning, summon and notification of successful prosecution for the Project is
presented in Appendix L.
11.2
The summary of exceedance record in the reporting month is shown in Appendix M.
11.3
No non-conformity was recorded
for landscape and visual inspections conducted in the reporting month.
12.1
Tentative construction
programmes for the next three months are provided in Appendix N.
12.2
Major site activities
undertaken for the coming months and the key environmental issues are
summarized as follows:
Table 12.1 Summary Table for Site Activities and the Key
Environmental Issues in the next Reporting Period
|
Contract
No. and Project Title
|
Site Activities (August 2024)
|
Key
Environmental Issues
|
|
ED/2018/04 - Trunk Road T2 and Infrastructure
Works for Developments at South Apron
|
1.
West Ventilation Building
ABWF, E&M
2.
Launching Shaft / Cut &
Cover RC Structure
3.
Westbound TBM Tunnelling
4.
Eastbound TBM Tunnelling
5.
EB Service Gallery
installation
6.
WB Service Gallery
Installation
7.
CP Tympanum construction
8.
Cross Passage Finishing
9.
Sub-sea Corbel Construction
10. Sub-sea Crown Fire Board
11. Sub-sea Road Level Fire Board
12. Sub-sea OHVD Soffit Fire Board
13. Sub-sea OHVD Slab Installation
14. Sub-sea Parapet Installation
15. SUS Remaining Internal Wall
16. SUS Fire Board installation
17. SUS Skin Wall
18. SUS Bracket installation
19. SUS E&M installation
20. Tunnel Segment delivery
21. MiMEP Module
Installation
22. Sub-sea E&M Bracket drilling
23. Sub-sea E&M Bracket installation
24.
Sub-sea E&M installation
|
·
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)
|
1. Mockup
inside tunnel – cable containment, ALCS, CCTV, VD
2. Mockup
installation inside Service Gallery – PA speaker
3. F& IU Audit on 9
Aug 2024
4. Material delivery:
Power cable, fibre cable
|
· The waste should be removed
regularly and litter free.
· The storage area should be kept
tidy.
· Temporary noise barriers for
PMEs.
|
|
Notes:
(1): No major construction work was undertaken during reporting month.
N/A: Not applicable
|
12.3
The tentative environmental
monitoring schedule for the next three months are shown in Appendix B.
13.1
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-174/2013) and the requirement under EP.
Air
Quality Monitoring
13.2
No Action and no Limit Level exceedance was recorded for 24-hour TSP
monitoring in the reporting month.
Construction
Noise Monitoring
13.3
No Limit Level exceedance was recorded for day-time construction noise
monitoring in the reporting month.
13.4
No Action Level exceedance was recorded in the reporting month.
Site Audit
13.5
Four (4) ET joint weekly environmental site
inspections were conducted for the Contact No. ED/2018/04 in the reporting
month.
13.6
Four (4) ET joint environmental site inspections were
conducted for the Contact No. ED/2020/03 in the reporting month.
Complaint, Notification
of Summons and Successful Prosecution
13.7
One (1) environmental complaint was received in
the reporting month. No notifications of summons and successful prosecutions
were received in the reporting month.
13.8
According to the environmental
audit performed in the reporting month, the following recommendations was made:
ED/2018/04
Water Quality
·
Ponding water should be cleared regularly to avoid mosquitoes.
Waste / Chemical Management
·
The drip tray should be provided for the chemical container / oil drums to
avoid the chemical leakage and remove the used chemical containers / oil drums
regularly.
