1.
This is the 9th
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 November 2020.
2.
The main works undertaken
during the reporting period are as follows:
Kai Tak:
·
Depressed Road – King Post
Installation
·
Depressed Road – Pump Well /
Pump Test
·
Depressed Road – Capping Beam
·
West Ventilation Building –
Slurry Wall
·
West Ventilation Building –
Sheet Pile
·
Launching Shaft / C&C
Tunnel / Break-in Plug - Diaphragm Wall
·
Launching Shaft / C&C
Tunnel – Capping Beam
·
Launching Shaft / C&C
Tunnel – Pump Well Installation
·
Launching Shaft / C&C
Tunnel – Gantry Beam
·
C&C Strutting Slab
·
C&C Tunnel – Pumping Test
·
CKL Junction Improvement works
·
132kV substation E&M Works
·
Road S20 / AMAWBC – Road &
Drain
·
CUE Section 6A - ELS
·
CUE Section 6A – Excavation
·
Road L10 (North) ELS
·
Mortar Plant Civil Works
3.
Implementation of the key
mitigation measures during the reporting period are as follows:
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)
Water Quality
·
WetSep was constructed to treat
the surface runoff prior to discharge.
Landscape and
Visual
·
Tree protection zone were
fenced off to protect the existing tree.
4.
Exceedance of Action/Limit levels
during the reporting month (November 2020)
and the investigation results and/or follow-up actions:
Air Quality Monitoring
·
Four (4) Action Level
exceedance for 24-hour TSP were recorded.
·
One (1) 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 for
construction noise 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 I Summary of
Complaint/Summons/Prosecution in the Reporting Month
|
Event
|
Event Details
|
Follow-up/
Remedial Actions
|
Status/
Remarks
|
|
Number
|
Brief
Description
|
|
Complaints Received
|
0
|
-
|
-
|
-
|
|
Notification of Summons and Prosecutions
Received
|
0
|
-
|
-
|
-
|
|
Public Engagement Activities
|
0
|
-
|
-
|
-
|
5.
No reporting change in the
reporting period.
6.
The key works or activities
will be anticipated in the next reporting period are as follows:
Table II Summary Table for Site
Activities in the next Reporting Period
|
Site Activities (December 2020)
|
Key
Environmental Issues
|
|
|
|
1. Depressed
Road – TAM Grouting
2. Depressed
Road – Excavation
3. SUS Bulkhead
Removal
4. C&C Bulk
Excavation
5. C&C
Tunnel – Excavation
6. District
Cooling System (DCS)
7. Hoi Bun Road
Junction Improvement
8. Amenities
Civil Works
|
(A) / (B) / (C) / (D)
|
|
|
Note:
(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.
|
|
1
INTRODUCTION
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. The EM&A programme at Kai Tak area under this
Contract is governed by the EP-451/2013 and EM&A Manual (AEIAR-174/2013).
The work areas of the T2 Main Works are shown in Figure 1 and the works to be executed under this Contract and
corresponding EP is summarized as follows:
|
Environmental
Permit
|
Works
Description
|
|
EP-451/2013 – Trunk Road T2
|
Trunk Road T2
· Construction of highway and sub-sea tunnel
connecting between Central Kowloon Route and Cha Kwo Ling Tunnel
· Western & Eastern Ventilation Buildings
|
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. The impact monitoring for the three stations KTD1, KTD2c 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”).
1.7
This is
the 9th Monthly EM&A Report which summarises the impact
monitoring results and audit findings for the EM&A programme during the
reporting period in November 2020.
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)
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
|
Mr. Joe Nam
|
5183 0830
|
|
Cinotech
|
Environmental Team
|
Mr. KS Lee (ETL)
|
2151 2091
|
|
Ms. Karina Chan
|
2157 3880
|
|
Ramboll
|
Independent Environmental Checker
|
Mr. Manson Yeung
|
3465 2888
|
|
BTP
|
Contractor
|
Mr. Bryan Lee
|
5588 3891
|
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:
Kai Tak:
·
Depressed Road – King Post
Installation
·
Depressed Road – Pump Well /
Pump Test
·
Depressed Road – Capping Beam
·
West Ventilation Building –
Slurry Wall
·
West Ventilation Building –
Sheet Pile
·
Launching Shaft / C&C
Tunnel / Break-in Plug - Diaphragm Wall
·
Launching Shaft / C&C
Tunnel – Capping Beam
·
Launching Shaft / C&C
Tunnel – Pump Well Installation
·
Launching Shaft / C&C
Tunnel – Gantry Beam
·
C&C Strutting Slab
·
C&C Tunnel – Pumping Test
·
CKL Junction Improvement works
·
132kV substation E&M Works
·
Road S20 / AMAWBC – Road &
Drain
·
CUE Section 6A - ELS
·
CUE Section 6A – Excavation
·
Road L10 (North) ELS
·
Mortar Plant Civil Works
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 November 2020.
1.15
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
|
|
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
|
|
Billing Account for Vessel Disposal
|
|
A/C No.:7037747
|
19 Oct 2020
|
13 Jan 2021
|
Valid
|
|
Construction Noise Permit
|
|
CNP No. (For Portion Depressed Road):
GW-RE0729-20
|
7 Sept 2020
|
26 Feb 2021
|
Valid
|
|
CNP No. (For Launching Shaft and Barging Point): GW-RE0459-20
|
15 Jun 2020
|
10 Dec 2020
|
Valid
|
|
CNP No. (For Launching Shaft and Barging Point):
GW-RE0653-20
|
5 Aug 2020
|
29 Dec 2020
|
Valid
|
|
CNP No. (For Site Office and Support Area):
GW-RE0588-20
|
15 Jul 2020
|
14 Jan 2021
|
Valid
|
|
CNP No.: GW-RE0871-20
|
1 Nov 2020
|
15 Dec 2020
|
Valid
|
|
Wastewater Discharge License
|
|
WT00036183-2020 (For Depressed Road Area)
|
28 Jul 2020
|
31 Jul 2025
|
Valid
|
|
WT00036228-2020 (For Launching Shaft)
|
28 Jul 2020
|
31 Jul 2025
|
Valid
|
|
Chemical Waste Producer License
|
|
WPN: 5213-286-B2557-03
|
09 Mar 2020
|
N/A
|
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.
Table 2.1
Air Quality Monitoring Locations
|
Monitoring
Stations
|
Location
|
|
KTD1
|
Centre of Excellence in Paediatrics
(Children’s Hospital)
|
|
KTD2c
|
G/IC Zone next to Kwun Tong Bypass (Next to
the Kowloon Bay Sewage Interception Station)
|
|
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, KTD2c,
KER1, CKL1 & CKL2
|
1-hour TSP
|
0700 – 1900
|
3 times per 6 days (as required in
case of complaints)
|
|
KTD1, KTD2c,
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. 3746)
|
1
|
|
Wind Anemometer
|
Davis Weather Monitor II, Model no. 7440
|
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 meter 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 aluminum 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. and Wellab 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
Four (4) Action Level and One
(1) Limit Level exceedance were recorded for 24-hour TSP monitoring in the
reporting month.
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)
|
·
Loading and
unloading of C&D wastes in the site;
·
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.
|
|
KTD 2c - G/IC Zone next to Kwun Tong Bypass (Next
to the Kowloon Bay Sewage Interception Station
|
|
KER 1 – Future Residential Development at Kerry Godown
|
|
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
(November 2020),
μg/m3
|
|
KTD 1 - Centre of
Excellence in Paediatrics (Children’s Hospital)
|
KTD3
|
126
|
114.8
|
|
KTD 2c - G/IC Zone next
to Kwun Tong Bypass (Next to the Kowloon Bay Sewage Interception Station
|
N/A(1)
|
N/A(1)
|
294.4
|
|
KER 1 – Future
Residential Development at Kerry Godown
|
KTD6
|
169
|
174.0
|
|
CKL1 - Flat 121 Cha Kwo Ling Village
|
N/A(1)
|
N/A(1)
|
159.2
|
|
CKL2 - Flat 103 Cha Kwo Ling Village
|
N/A(1)
|
N/A(1)
|
157.9
|
Remarks:
(1)
No 24-hr TSP concentration was predicted in EIA
Report (AEIAR-174/2013)
2.1
In the reporting month the
24-hour TSP concentration at KER1 was higher than the prediction in the EIA
Report, AEIAR-174/2013 (as approved in 2013), this may due to the fluctuation of
road traffic along Kai Hing Road which affected the result of 24-hour TSP concentration at KER1. Besides, the 24-hour TSP
concentration at KTD1 was lower than the prediction in the EIA Report,
AEIAR-174/2013 (as
approved in 2013). Four (4) Action Level and One (1)
Limit level exceedance for 24-hour TSP were recorded in the reporting period.
Details of the exceedance are presented in Appendix
M.
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, KTD2c, 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.
Table 3.1 Noise Monitoring Stations
|
Monitoring
Stations
|
Location
|
|
KTD1
|
Centre of Excellence in Paediatrics
(Children’s Hospital)
|
|
KTD2c
|
G/IC Zone next to Kwun Tong Bypass (Next to
the Kowloon Bay Sewage Interception Station)
|
|
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
|
|
KTD2c
|
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
|
SVAN 957 (Serial no. 23851, 23852)
|
2
|
|
SVAN 979 (Serial no. 27190, 27189)
|
2
|
|
Calibrator
|
B&K 4231 (Serial no. 2326353)
|
1
|
|
SV30A (Serial no. 10965)
|
1
|
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
Limit Level exceedance was recorded for day time construction noise monitoring
in the reporting month. No Action Level exceedance was recorded 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 Fung Road; and,
·
Non-project related
construction activities at the nearby construction site of New Acute
Hospital.
|
|
KTD 2c
|
·
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
alongKwun Tong By-pass; and,
·
Non-project
related construction activities at the nearby construction site of New Acute
Hospital
|
|
KER 1
|
Road traffic along Kai Hing Road.
|
|
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
|
|
KTD2c
|
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
(November 2020),
Leq (30min) dB(A)
|
|
KTD 1 - Centre of
Excellence in Paediatrics (Children’s Hospital)
|
KTD1
|
74
|
75.3
|
|
KTD 2c - G/IC
Zone next to Kwun Tong Bypass (Next to the Kowloon Bay Sewage Interception
Station
|
N/A(1)
|
N/A(1)
|
73.6
|
|
KER 1 – Future
Residential Development at Kerry Godown
|
KER1
|
75
|
74.9
|
|
CKL1 - Flat 121 Cha Kwo Ling
Village
|
CKL4
|
71
|
73.0
|
|
CKL2 - Flat 103 Cha Kwo Ling
Village
|
CKL5
|
69
|
73.4
|
Remarks:
(1) No Maximum
Predicted Mitigated Construction Noise Levels was predicted in EIA Report (AEIAR-174/2013)
3.15 The results at CKL1 and CKL2 were 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 Cha Kwo Ling Road throughout the day. Moreover, the result at KTD1 was
also higher than the maximum predicted mitigated construction noise level in
the EIA Report. Based on the field observation, it was due to the non-project
related construction noise generated from the construction activity at the
adjacent construction site (New Acute
Hospital at Kai Tak Development Area) and the fluctuations of traffic
flow along Shing Fung Road throughout the day. Besides,
the results at KER1 was lower than the maximum predicted mitigated construction
moise level in the EIA Report. No Limit level exceedance was 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 is 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.
6.1
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 were conducted on
05, 12, 19, and 26 November 2020 in the reporting month. Site inspection of the
IEC was conducted on 12 November2020. No non-compliance was observed during the
site audit.
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
|
|
Air Quality
|
N/A
|
There was no observation
in the reporting period.
|
N/A
|
|
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
|
10.5
The Event and Action Plans for
air quality, construction noise, and landscape and visual are presented in Appendix J.
Air Quality Monitoring
·
Four (4) Action Level and One
(1) Limit Level exceedance for 24-hour TSP monitoring were recorded.
Construction Noise
Monitoring
·
No Limit Level exceedance for
construction noise monitoring was recorded in the reporting month.
·
No Action Level exceedance for
construction noise was recorded in the reporting month;
Landscape and Visual
·
No landscape and visual
non-conformity was 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
|
|
EP-451/2013
|
|
Condition 2.3
|
Management Organization
of Main Construction Companies
|
20 January 2020
|
|
Condition 2.4
|
Design Drawing of the
Project
|
20 January 2020
|
|
Condition 2.5
|
Landscape Mitigation
Plan(s)
|
7 May 2020
|
|
Condition 2.10 (a)
|
Supplementary
Contamination Assessment Plan
|
18 December 2015
|
|
Condition 2.10 (b)
|
Supplementary
Contamination Assessment Report
|
6 December 2016
|
|
Condition 3.3
|
Updated Baseline
Monitoring Report
|
11 August 2020
|
|
Condition 3.4
|
Monthly EM&A Report
(October 2020)
|
18 November 2020
|
11
Environmental non-conformance
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.
Tentative construction programmes for the
next three months are provided in Appendix
N.
12.1 Major site activities undertaken for the coming months are
summarized as follows:
·
Depressed Road – TAM Grouting
·
Depressed Road – Excavation
·
SUS Bulkhead Removal
·
C&C Bulk Excavation
·
C&C Tunnel – Excavation
·
District Cooling System (DCS)
·
Hoi Bun Road Junction Improvement
·
Amenities Civil Works
12.2
Key environmental issues in the
coming months include:
·
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.
12.3
The tentative environmental
monitoring schedule for the next three months are shown in Appendix B.
13.1
This is the 9th
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
Four (4) Action Level and One (1) Limit Level exceedance were recorded for
24-hour TSP monitoring in the reporting month.
Construction
Noise Monitoring
13.3
No Limit Level exceedance was recorded for all noise monitoring in the
reporting month.
13.4
No Action Level exceedance was recorded in the reporting month.
Site Audit
13.5
4 ET joint weekly environmental
site inspections were conducted in the reporting month.
Complaint,
Notification of Summons and Successful Prosecution
13.6
No environmental complaint was
received in the reporting month. No notifications of summons and successful
prosecutions were received in the reporting month.
13.7
According to the environmental
audit performed in the reporting month, the following recommendations was made:
Air Quality
·
Wet by water spraying on any unpaved main
haul road to minimize dust emission during dry weather.
