Executive
summary
Apex Testing & Certification Limited (Apex) was commissioned to
undertake the Environmental Team (ET) services (including environmental
monitoring and audit (EM&A)) for the construction activities in Zone 2A,
consisting of Foundation, Excavation and Lateral Support Works for Integrated
Basement and Underground Road (Contract No.: GW/2020/05/073); and Zone 2B
& 2C consisting of Piling Works for Integrated Basement and Underground
Road (Contract No.: CC/2020/2B/088) at WKCD. The major construction works and
EM&A programme for Zone 2A and Zone 2B & 2C commenced on 03 October
2020 and 30 September 2021 respectively.
The Project Proponent is the West Kowloon Cultural District Authority
(WKCDA). The overall works for the WKCD fall under two
separate categories of Designated Project (DP) of the Environmental Impact
Assessment Ordinance (EIAO), namely an “engineering feasibility study of urban
development projects with a study area covering more than 20 ha or involving a
total population of more than 100 000” (Item 1 of Schedule 3) and “an underpass
more than 100m in length under the built areas” (Item A.9, Part I, Schedule 2).
An Environmental Permit No. EP-453/2013/B (EP) was issued with respect to the
“Underpass Road and Austin Road Flyover Serving the West Kowloon Cultural
District” which specifically includes the abovementioned category of DP under
Item A.9, Part I, Schedule 2 of the EIAO.
This Monthly EM&A Report presents the
monitoring works at Zone 2A and
Zone 2B & 2C from 01 to 31 October 2022.
Exceedance of Action and Limit Levels
There was no breach of Action or Limit levels for Air Quality
(1-hour TSP and 24-hour TSP) in this reporting month.
Two Action Level exceedance due to two complaints with no Limit
Level exceedance of Construction Noise was recorded in the reporting month.
Implementation of
Mitigation Measures
Construction phase weekly site inspections
were carried out on 06, 13, 21 and 27 October 2022
for Foundation, Excavation and Lateral Support Works in Zone 2A and on 05, 12,
19 and 26 October 2022 for Piling Works in Zone 2B & 2C to confirm the implementation measures undertaken by the Contractors
in the reporting month. The outcomes are presented in Section 4 and the status
of implementation of mitigation measures in the site is shown in Appendix J.
Landscape and visual impact inspections were conducted as part of
the abovementioned weekly site inspections during the reporting month. No
adverse comment on landscape and visual aspects was made during these
inspections.
FEHD inspection was conducted at Zone 2B & 2C on 12 October 2022.
Record of Complaints
Two environmental complaints were recorded in the reporting month.
Record of Notifications
of Summons and Successful Prosecutions
No notifications of summons and successful prosecutions were
recorded in the reporting month.
Future Key Issues
The major site works for Zone 2A scheduled to be commissioned in the
coming month include:
Zone 2A-1
●
Site Works before Handover
–
Site Clearance
Zone 2A-2
●
Site Works before Handover
–
Site Clearance
The major site works for Zone 2B & 2C scheduled to be commissioned
in the coming month include:
KD05
(Section 1), KD06 (Section 2), KD07 (Section 3), KD08 (Section 4) and KD09 (Section 5)
● Bored Pile Works
– RCD Drilling, Airlifting, Cage Installation & Concreting and
Excavation
Potential environmental impacts due to the construction activities,
including air, noise, water quality, waste, landscape and visual, will be
monitored or reviewed. The recommended environmental mitigation measures shall
be implemented on site and regular inspections as required will be carried out
to ensure that the environmental conditions are acceptable.
Apex Testing & Certification Limited (Apex) was commissioned to
undertake the Environmental Team (ET) services (including environmental
monitoring and audit (EM&A)) for the construction activities in Zone 2A,
consisting of Foundation, Excavation and Lateral Support Works for Integrated
Basement and Underground Road (Contract No.: GW/2020/05/073) ; and Zone 2B
& 2C consisting of Piling Works for Integrated Basement and Underground Road
(Contract No.: CC/2020/2B/088) at WKCD. The purpose of the development in Zone
2A and Zone 2B & 2C is to reserve for Integrated Basement (IB) and
Underground Road (UR). The Zone 2A construction activities involve the
foundation, excavation and lateral support (ELS) works, road works, drainage
diversion works, and temporary car parking. The Zone 2B & 2C construction
activities involve the piling works. The major construction works and EM&A
programme for Zone 2A and Zone 2B & 2C commenced on 03 October 2020 and 30
September 2021 respectively.
The overall works for the WKCD fall under two separate categories of
Designated Project (DP) of the Environmental Impact Assessment Ordinance
(EIAO), namely an “engineering feasibility study of urban development projects
with a study area covering more than 20 ha or involving a total population of
more than 100 000” (Item 1 of Schedule 3) and “an underpass more than 100m in length
under the built areas” (Item A.9, Part I, Schedule 2). An Environmental Permit
No. EP-453/2013/B (EP) was issued with respect to the “Underpass Road and
Austin Road Flyover Serving the West Kowloon Cultural District” which
specifically includes the abovementioned category of DP under Item A.9, Part I,
Schedule 2 of the EIAO. The captioned projects include part of the
abovementioned underpass road located within the site boundary falls under this
same category.
The Monthly EM&A Report is
prepared in accordance with the Condition 3.4 of the Environmental Permit No.
EP-453/2013/B. This Monthly EM&A Report presents
the monitoring works at Zone 2A and Zone 2B & 2C from 01 to 31 October
2022. The purpose of
this report is to summarise the findings in the EM&A of the project over
the reporting period.
The
organisation chart and lines of communication with respect to the on-site
environmental management structure together with the contact information of the
key personnel are shown in Appendix
A.
During the reporting period, construction works at Zone 2A
undertaken include:
Zone 2A-1
●
BA14 Submission
–
BD Acknowledgement of BA14
●
Hoarding Modification
–
Hoarding Modification
Zone 2A-2
●
BA14 Submission
–
BD Acknowledgement of BA14
During the reporting period, construction works at Zone 2B & 2C
undertaken include:
KD05 (Section 1)
●
Predrilling
●
Bored Pile Works
–
RCD Drilling, Airlifting, Cage
Installation & Concreting and Excavation
KD06 (Section
2), KD07
(Section 3), KD08 (Section 4) and KD09 (Section 5)
●
Bored Pile Works
–
RCD Drilling, Airlifting, Cage
Installation & Concreting and Excavation
The Construction Works Programme of Zone 2A and Zone 2B & 2C is provided in Appendix B. A layout plan of the Project is provided in Figure 1. Please refer to Table 4.3 and Table 4.4 on the status of the environmental
licenses.
1.4
Summary of EM&A Requirements and Alternative Monitoring Locations
The EM&A programme requires environmental monitoring of air
quality, noise, landscape and visual as specified in the approved EM&A Manual.
A summary of impact EM&A requirements
is presented in Table 1.1.
Table 1.1: Summary
of Impact EM&A Requirements
|
Parameters
|
Descriptions
|
Locations
|
Frequencies
|
|
Air Quality
|
24-Hours TSP
|
AM3-The Victoria Towers Tower 1
|
At least once every 6 days
|
|
1-Hour TSP
|
AM3-The Victoria Towers Tower 1
|
At least 3 times every 6 days
|
|
24-Hours TSP
|
AM4-Canton Road Government Primary School
|
At least once every 6 days
|
|
1-Hour TSP
|
AM4-Canton Road Government Primary School
|
At least 3 times every 6 days
|
|
24-Hours TSP
|
AM5-Topside Developments at West Kowloon Terminus Site
|
At least once every 6 days
|
|
1-Hour TSP
|
AM5-Topside Developments at West Kowloon Terminus Site
|
At least 3 times every 6 days
|
|
Noise
|
Leq, 30 minutes
|
NM2-The Arch, Sun Tower
|
Weekly
|
|
Leq, 30 minutes
|
NM3-The Victoria Towers Tower 1
|
Weekly
|
|
Leq, 30 minutes
|
NM4-Canton Road Government Primary School
|
Weekly
|
|
Leq, 30 minutes
|
NM5-Development next to Austin Station
|
Weekly
|
|
Landscape & Visual
|
Monitor implementation of proposed mitigation measures during the
construction stage
|
As described in Table 9.1 and 9.2 of the EM&A Manual
|
Bi-Weekly
|
The EM&A programme for the Project should require 5 noise monitoring
station and 5 air quality monitoring stations located closest to the Project
area. With regard to the
monitoring activities at M+ Museum and the Lyric Complex, three monitoring
stations had been considered, including AM1 (International Commerce Centre),
AM2 (The Harbourside Tower 1) for air monitoring, and NM1 (The Harbourside
Tower 1) for noise monitoring.
In the context of the construction
activities in Zone 2A and Zone 2B & 2C, all other monitoring locations
including AM3 (The Victoria Towers
Tower 1), AM4 (Canton Road Government Primary School), and AM5 (Topside
Developments at West Kowloon Terminus Site) for air monitoring; and NM2 (The Arch, Sun Tower), NM3 (The Victoria Towers Tower 1), NM4 (Canton
Road Government Primary School) and NM5 (Development next to Austin Station) for noise
monitoring, have
been taken into account. However, access to all these originally designated
monitoring stations was declined as described below point-by-point.
The Arch management office and owners’
committee have formally declined the proposal of setting up noise monitoring
instrument on its premises at the podium level of Sun Tower (NM2) on 24 July
2014. Thus, alternative
noise monitoring location was identified at the ground floor in front of The Arch – Sun Tower (NM2A),
which is at the same location as stated in the EM&A Manual for consistency. No management
approval is required at the ground floor for conducting the noise monitoring. This alternative air monitoring location was approved by EPD on 29
September 2020.
The Victoria Towers management
office formally declined the proposal of setting up air
quality and noise monitoring instruments on its premises at the podium area
of Tower 1 (AM3/NM3) on 16 June 2020. Alternative air monitoring location was
identified at ground floor at the Northeast corner of West Kowloon Station’s
station box (AM3A), in the same direction to the area of major construction
site activities in Zone 2A. This alternative air monitoring location was
approved by EPD on 29 September 2020. An alternative noise monitoring location
was identified at the ground floor in front of the Xiqu
Centre (NM3A), which is set closer to the construction site boundary with more
direct line sight to the major site activities and higher exposure to the
construction noise with no disturbance to the premises’ occupants during noise
monitoring activities. No management approval is required at the ground floor
for conducting the noise monitoring. This alternative air monitoring location
was approved by EPD on 29 September 2020.
Canton Road Government Primary
School formally declined the proposal of setting up air
quality and noise monitoring instruments on its premise at the podium level (AM4/NM4) on 16 June 2020. Alternative air monitoring
location was identified at ground floor at the Southeast corner of West Kowloon Station’s station box
(AM4A), in same direction to the area of major construction site activities in
Zone 2A. This alternative air monitoring location was approved by EPD on 29
September 2020. An alternative noise monitoring
location was identified at the ground floor next to Tsim Sha Tsui Fire
Station (NM4A), which is set closer to the construction site boundary
with more direct line sight to the major site activities and higher exposure to
the construction noise with no disturbance to the premises’ occupants during noise monitoring
activities. No management approval is required at the ground floor for
conducting the noise monitoring. This alternative air monitoring location was
approved by EPD on 29 September 2020.
MTR also formally declined the
access to the designated AM5 location (topside developments at West Kowloon
Terminus Site) on 15 July 2020. Alternative air monitoring location was
identified at ground floor at the North
of West Kowloon Station’s station box (AM5A), in same direction
to the area of major construction site activities in Zone 2A. This alternative
air monitoring location was approved by EPD on 29 September 2020.
Grand Austin property management
office formally declined our proposal of setting up noise monitoring instrument on its premises at the podium
level (NM5) on 10 July 2020. Alternative noise monitoring location was
identified at the Pedestrian road (ground floor) outside West Kowloon Station
(NM5A), which is set closer to the
construction site boundary with more direct line sight to the major site
activities and higher exposure to the construction noise with no disturbance to
the premises’ occupants during noise monitoring activities. No management
approval is required at the ground floor for conducting the noise monitoring.
This alternative air monitoring location was approved by EPD on 29 September
2020.
The Environmental Quality Performance Limits for air quality and
noise are shown in Appendix
C.
The Event and Action Plan for air quality, construction noise, and landscape and visual are shown in Appendix D.
The EM&A programme followed
the recommended mitigation measures in the EM&A Manual. The EM&A
requirements as well as the summary of implementation status of the
environmental mitigation measures are provided in Appendix J.
Air quality and noise monitoring
methodology, including the monitoring locations, equipment used, parameters, frequency
and duration etc., are described in this Section. The environmental monitoring
schedules for the reporting period and the tentative monitoring Schedule for
the coming month are provided in Appendix
E.
The relevant EM&A monitoring
requirements and details for landscape and audit impact, are also presented in
this Section.
Table 2.1 summarizes the monitoring
parameters, frequency and duration of the TSP monitoring.
Table
2.1: Air
Quality Monitoring Parameters, Frequency and Duration
|
Parameter
|
Frequency
|
Duration
|
|
24-hour TSP
|
At least once in every six-days
|
24 hours
|
|
1-hour TSP
|
At least 3 times every six-days
|
60 minutes
|
2.2.2
Monitoring Locations
Monitoring
stations and locations are given in Table
2.2
and shown in Figure 1.
Table 2.2: Air Quality
Monitoring Station
|
Monitoring Station
|
Location Description
|
|
AM3A
|
Northeast corner of West Kowloon Station’s station box
(G/F)
|
|
AM4A
|
Southeast corner of West Kowloon Station’s station box
(G/F)
|
|
AM5A
|
North of West Kowloon Station’s station box (G/F)
|
2.2.3
Monitoring Equipment
Continuous 24-hour TSP air quality monitoring was conducted using
High Volume Sampler (HVS) (Model: TE-5170) located at the designated monitoring
station. The HVS meets all the requirements stated in of the EM&A Manual.
Portable direct reading dust meter was used to carry out the 1-hour TSP
monitoring. Table 2.3 summarizes the equipment used in the
impact air quality monitoring. Copies of the calibration certificates for the
HVS, calibration kit and portable dust meters are attached in Appendix F.
Table 2.3: TSP
Monitoring Equipment
|
Equipment
|
Model
|
|
24-hour TSP monitoring
|
|
High Volume Sampler
|
TE-5170 (Serial No.: 4340; 3998; 4344)
|
|
Calibrator
|
TE-5025A (Orifice I.D.: 3543)
|
|
1-hour TSP monitoring
|
|
Portable direct reading dust meter
|
Sibata LD-3B (Serial No.: 235811,
336338, 567188)
|
Calibration of the HVS (five-point
calibration) using Calibration Kit was carried out every two months. The HVS
calibration orifice will be calibrated annually. Calibration certificate of the
TE-5025A Calibration Kit and the HVS are provided in Appendix F.
The 1-hour TSP monitoring
should be determined periodically (e.g. annually) by the HVS to check the
validity and accuracy of the results measured by direct reading method.
24-hour TSP Monitoring
Installation
The HVS was installed at the site boundary. The following criteria
were considered in the installation of the HVS.
–
A horizontal platform with
appropriate support to secure the sampler against gusty wind was provided.
–
The distance between the HVS
and any obstacles, such as buildings, was at least twice the height that the
obstacle protrudes above the HVS.
–
A minimum of 2 metres
separation from walls, parapets and penthouse was required for rooftop sampler.
–
A minimum of 2 metres
separation from any supporting structure, measured horizontally was required.
–
No furnace or incinerator flues
or building vent were nearby.
–
Airflow around the sampler was
unrestricted.
–
The sampler has been more than
20 metres from any drip line.
–
Permission was obtained to set
up the sampler and to obtain access to the monitoring station.
–
A secured supply of electricity
is needed to operate the sampler.
Preparation of Filter
Papers
–
Glass fibre filters were
labelled and sufficient filters that were clean and without pinholes were
selected.
–
The filters used are specified
to have a minimum collection efficiency of 99 percent for 0.3 µm (DOP)
particles.
–
All filters were equilibrated
in the conditioning environment for 24 hours before weighing. The conditioning
environment temperature was around 25 °C and not variable by more than ±3 °C
with relative humidity (RH) < 50% and was not variable by more than ±5
%. A convenient working RH was 40%. All preparation of filters was done by Hong Kong Laboratory Accreditation Scheme (HOKLAS) accredited laboratory.
Field Monitoring
Procedures
–
The power supply was checked to
ensure the HVS works properly.
–
The filter holder and the area
surrounding the filter were cleaned.
–
The filter holder was removed
by loosening the four bolts and a new filter, with stamped number upward, on a
supporting screen was aligned carefully.
–
The filter was properly aligned
on the screen so that the gasket formed an airtight seal on the outer edges of
the filter.
–
The swing bolts were fastened
to hold the filter holder down to the frame. The pressure applied should be
sufficient to avoid air leakage at the edges.
–
The shelter lid was closed and
was secured with the aluminium strip.
–
The HVS was warmed-up for about
5 minutes to establish run-temperature conditions.
–
A new flow rate record sheet
was set into the flow recorder.
–
The flow rate of the HVS was
checked and adjusted at around 1.3 m3/min. The range specified in the
EM&A Manual was between 0.6-1.7 m3/min.
–
The programmable timer was set
for a sampling period of 24 hours, and the starting time, weather condition and
the filter number were recorded.
–
The initial elapsed time was
recorded.
–
At the end of sampling, the
sampled filter was removed carefully and folded in half
length so that only surfaces with collected particulate matter were in
contact.
–
It was then placed in a clean
plastic envelope and sealed.
–
All monitoring information was
recorded on a standard data sheet.
–
Filters were sent to a Hong
Kong Laboratory Accreditation Scheme (HOKLAS) accredited laboratory for
analysis.
Maintenance and
Calibration
–
The HVS and its accessories are
maintained in good working condition, such as replacing motor brushes routinely
and checking electrical wiring to ensure a continuous power supply.
–
HVSs were calibrated upon
installation and thereafter at bi-monthly intervals. The calibration kits were
calibrated annually.
–
Calibration
records for HVS and calibration kit are shown in Appendix F.
1-hour TSP Monitoring
Field Monitoring
The measuring procedures of the 1-hour dust meter are in accordance with
the Manufacturer’s Instruction Manual as follows:
–
Turn the power on.
–
Close the air collecting
opening cover.
–
Push the “TIME SETTING” switch
to [BG].
–
Push “START/STOP” switch to
perform background measurement for 6 seconds.
–
Turn the knob at SENSI ADJ position
to insert the light scattering plate.
–
Leave the equipment for 1
minute upon “SPAN CHECK” is indicated in the display.
–
Push “START/STOP” switch to
perform automatic sensitivity adjustment. This measurement takes 1 minute.
–
Pull out the knob and return it
to MEASURE position.
–
Setting time period of 1 hour for the 1-hour TSP
measurement.
–
Push
“START/STOP” to start the 1-hour TSP measurement.
–
Regular checking of the time period setting to ensure monitoring time of
1 hour.
Maintenance and Calibration
–
The 1-hour dust meter would be
checked at 3-month intervals and calibrated at 1-year intervals throughout all
stages of the air quality monitoring.
–
Calibration records for direct
dust meters are shown in Appendix F.
Weather Condition
–
Meteorological data extracted
from Hong Kong Observatory for the reporting month is provided in Appendix H.
Table 2.4 summarizes the monitoring parameters, frequency and duration of
noise monitoring. The noise in A-weighted levels Leq,
L10 and L90 are recorded in a 30-minute interval between
0700 and 1900 hours.
Table 2.4: Noise Monitoring
Parameters, Period and Frequency
|
Time Period
|
Parameters
|
Frequency
|
|
Daytime
on normal weekdays
(0700-1900
hours)
|
Leq(30 min), L90(30 min) & L10(30
min)
|
Once
every week
|
Note: *70 dB(A) for
schools and 65 dB(A) during school examination periods.
If works are to be carried out during restricted hours, the conditions
stipulated in the Construction Noise Permit (CNP) issued by the Noise Control
Authority have to be followed.
Noise monitoring stations and locations are given in Table
2.5 and shown in Figure 1.
Table 2.5: Noise
Monitoring Station
|
Monitoring Station
|
Location
|
|
NM2A
|
The Arch – Sun
Tower (G/F)
|
|
NM3A
|
Xiqu Centre (G/F)
|
|
NM4A
|
Next to Tsim Sha Tsui Fire Station (G/F)
|
|
NM5A
|
Pedestrian road (G/F) outside West Kowloon
Station
|
2.3.3
Monitoring Equipment
Integrating Sound Level
Meter was used for noise monitoring. It was a Type 1 sound level meter capable
of giving a continuous readout of the noise level readings including equivalent
continuous sound pressure level (LAeq) and percentile
sound pressure level (Lx). They comply with International
Electrotechnical Commission Publications 651:1979 (Type 1) and 804:1985 (Type
1). Table 2.6 summarizes the noise monitoring equipment model being used.
Table 2.6: Noise
Monitoring Equipment
|
Equipment Model
|
|
|
Integrating Sound Level Meter
|
Calibrator
|
|
AWA5661 (Serial No.: 377204, 301135)
|
Quest
QC-10 (Serial No.: Q19010183)
|
2.3.4
Monitoring Methodology
Field Monitoring
–
The microphone of the Sound
Level Meter was set at least 1.2 m above the ground.
–
Free Field measurement was made
at NM5A monitoring location.
–
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 intervals (between 0700-1900 on normal
weekdays)
–
Prior to and after each noise
measurement, the meter was calibrated using a Calibrator for 94 dB at 1
kHz. If the difference in the calibration
level before and after measurement was more than 1 dB, the measurement would be
considered invalid and has to be repeated
after re-calibration or repair of the equipment.
–
During the monitoring period,
the Leq, L10 and L90
were recorded. In addition, any
site observations and noise sources were recorded on a standard record sheet.
–
A correction of +3dB(A) was
made to the free field measurements.
Maintenance and Calibration
–
The microphone head of the
sound level meter and calibrator is cleaned with soft cloth at quarterly
intervals.
–
The sound level meter and
calibrator are sent to the supplier or HOKLAS laboratory to check and calibrate
at yearly intervals.
–
Calibration records are shown
in Appendix F.
Weather Condition
–
Meteorological data extracted
from Hong Kong Observatory for the reporting month is provided in Appendix H.
2.4
Landscape and Visual
Table
2.7 details the monitoring program (as
proposed in the WKCD EIA report) for landscape and visual impact during the
construction phase.
Table 2.7: Monitoring Program
for Landscape and Visual Impact during Construction Phase
|
Stage
|
Monitoring
Task
|
Frequency
|
Report
|
Approval
|
|
Construction
|
Monitor implementation of proposed mitigation
measures during the construction stage.
|
Bi-weekly
|
ET to report on Contractor’s compliance
|
Counter-signed by IEC
|
During the landscape and visual impact monitoring, any changes in
relation to the landscape and visual amenity should be monitored with reference
to the baseline conditions of the site. In addition, mitigation measures were
proposed in the WKCD EIA report to minimise the landscape and visual impacts
during the construction phase. The proposed mitigation measures as shown in
Table 9.1 and Table 9.2 of the EM&A Manual should be checked for proper
implementation.
Air quality, noise
and landscape and visual impact
monitoring was undertaken in compliance
with the EM&A Manual during the reporting
month.
3.2
Air Quality Monitoring
Results of 1-hour TSP are summarised in Table 3.1.
Graphical plots of the monitoring results are shown in Appendix G.
Table 3.1: Summary
of 1-hour TSP monitoring results
|
Monitoring Station
|
Monitoring Date
|
Start Time
|
1-hour TSP (μg/m3)
|
Range (μg/m3)
|
Action Level (μg/m3)
|
Limit Level (μg/m3)
|
|
1st Result
|
2nd Result
|
3rd Result
|
|
AM3A
|
06-Oct-22
|
08:01
|
42
|
47
|
45
|
42-66
|
280.4
|
500
|
|
12-Oct-22
|
14:05
|
63
|
58
|
62
|
|
18-Oct-22
|
08:03
|
66
|
63
|
65
|
|
24-Oct-22
|
14:06
|
60
|
60
|
59
|
|
29-Oct-22
|
08:07
|
56
|
56
|
54
|
|
AM4A
|
06-Oct-22
|
08:09
|
48
|
40
|
46
|
40-67
|
278.5
|
500
|
|
12-Oct-22
|
14:13
|
64
|
59
|
63
|
|
18-Oct-22
|
08:11
|
62
|
63
|
67
|
|
24-Oct-22
|
14:14
|
61
|
58
|
58
|
|
29-Oct-22
|
08:15
|
47
|
50
|
49
|
|
AM5A
|
06-Oct-22
|
08:24
|
43
|
41
|
44
|
41-70
|
275.4
|
500
|
|
12-Oct-22
|
14:30
|
58
|
60
|
59
|
|
18-Oct-22
|
08:26
|
65
|
70
|
68
|
|
24-Oct-22
|
14:31
|
60
|
67
|
66
|
|
29-Oct-22
|
08:30
|
56
|
51
|
51
|
3.2.2
24-hour TSP
Results of 24-hour TSP are summarised in Table 3.2.
Graphical plots of the monitoring results are shown in Appendix G.
Table 3.2: Summary
of 24-hour TSP monitoring results
|
Monitoring Station
|
Monitoring Date
|
Start Time
|
Monitoring Results (μg/m3)
|
Range (μg/m3)
|
Action Level (μg/m3)
|
Limit Level (μg/m3)
|
|
AM3A
|
06-Oct-22
|
10:00
|
44.2
|
44.2-67.5
|
152.4
|
260
|
|
12-Oct-22
|
10:00
|
59.4
|
|
18-Oct-22
|
10:00
|
67.5
|
|
24-Oct-22
|
10:00
|
54.6
|
|
29-Oct-22
|
10:00
|
53.3
|
|
AM4A
|
06-Oct-22
|
10:00
|
40.6
|
40.6-62.4
|
152.6
|
260
|
|
12-Oct-22
|
10:00
|
56.7
|
|
18-Oct-22
|
10:00
|
62.4
|
|
24-Oct-22
|
10:00
|
59.0
|
|
29-Oct-22
|
10:00
|
46.2
|
|
AM5A
|
06-Oct-22
|
10:00
|
41.2
|
41.2-62.2
|
141.1
|
260
|
|
12-Oct-22
|
10:00
|
57.2
|
|
18-Oct-22
|
10:00
|
62.2
|
|
24-Oct-22
|
10:00
|
57.6
|
|
29-Oct-22
|
10:00
|
50.2
|
No exceedance of 1-hour and 24-hour TSP
(Action or Limit Level) was recorded in the reporting period.
The construction noise
monitoring results are summarized in Table 3.3. Graphical plots of the monitoring data and the station set-up as façade
and free-field measurements are shown in Appendix G.
Table 3.3: Summary
of noise monitoring results during normal weekdays
|
Monitoring
Stations
|
Monitoring
Date
|
Start Time
|
End Time
|
Leq
(30 mins) dB(A)
|
Limit Level
for Leq (dB(A))
|
|
NM2A
|
06-Oct-22
|
08:31
|
09:01
|
62.1
|
75
|
|
12-Oct-22
|
14:35
|
15:05
|
61.6
|
|
18-Oct-22
|
08:33
|
09:03
|
61.3
|
|
24-Oct-22
|
14:36
|
15:06
|
61.5
|
|
29-Oct-22
|
08:37
|
09:07
|
61.8
|
|
NM3A
|
06-Oct-22
|
10:01
|
10:31
|
63.6
|
75
|
|
12-Oct-22
|
16:08
|
16:38
|
62.6
|
|
18-Oct-22
|
10:03
|
10:33
|
62.4
|
|
24-Oct-22
|
16:09
|
16:39
|
62.1
|
|
29-Oct-22
|
10:07
|
10:37
|
62.5
|
|
NM4A
|
06-Oct-22
|
10:36
|
11:06
|
63.0
|
70/65^#
|
|
12-Oct-22
|
16:43
|
17:13
|
61.7
|
|
18-Oct-22
|
10:38
|
11:08
|
61.3
|
|
24-Oct-22
|
16:44
|
17:14
|
61.6
|
|
29-Oct-22
|
10:42
|
11:12
|
61.5
|
|
NM5A*
|
06-Oct-22
|
09:21
|
09:51
|
65.8
|
75
|
|
12-Oct-22
|
15:27
|
15:57
|
64.5
|
|
18-Oct-22
|
09:23
|
09:53
|
64.4
|
|
24-Oct-22
|
15:28
|
15:58
|
64.2
|
|
29-Oct-22
|
09:27
|
09:57
|
64.2
|
|
Remarks:
* +3dB (A) correction was applied to
free-field measurement.
^
70 dB(A) for schools and 65 dB(A) during school examination
periods.
# School examination was
conducted on 21 and 24 October 2022 in the reporting period.
|
Two Action Level exceedance
due to two complaints with no Limit Level exceedance of Construction Noise was
recorded in the reporting month
Construction works
were extended to 1900-2300 hours on 05 to 08, 10 to 11, 13 to 15, 17, 19, 21, 25
to 29 and 31 October 2022; and to holidays 1000-1900 hours on 02, 09, 16, 23
and 30 October 2022. In accordance with the EM&A Manual, additional
monitoring was carried out during the restricted hours on 02, 06, 09, 13, 16,
19, 23, 25, and 30 October 2022. The Leq
(5 mins) is in the range of 56.1-65.1 dB(A). Construction Noise Permits for the
works carried out during restricted hours were obtained and listed in Table 4.3 and Table 4.4.
Landscape and visual impact inspections were conducted as part of
the weekly site inspections on 13 and 27 October 2022 for Zone 2A and 05 and 19
October 2022 for Zone 2B & 2C during the reporting month. As reviewed by
the registered Landscape Architect, no adverse comment on landscape and visual
aspects was made during these inspections.
The landscape and visual mitigation measures were implemented during
the reporting period. The summary of implementation status of the environmental mitigation
measures is provided in Appendix J.
Construction phase weekly site inspections were carried out on 06, 13,
21 and 27 October 2022 at Zone 2A. The joint site
inspection with IEC, ET, ER and Contractor for Zone 2A was held on 21 October
2022. All observations have been recorded in the site inspection checklist and
passed to the Contractor together with the appropriate recommended mitigation
measures where necessary.
The key observations from the
site inspections and associated recommendations are summarized in Table 4.1.
Table 4.1: Summary
of Site Inspections and Recommendations for Zone 2A
|
Inspection Date
|
Parameter
|
Observation / Recommendation
|
Contactor’s Responses /
Action(s) Undertaken
|
Close-out (Date)
|
|
13-Oct-22
|
Noise impact
|
The contractor was reminded that movable noise
barriers must be properly set at the concrete braking area (prior to the work
resuming) to minimize noise impact to the NSRs.
|
The contractor has set up the movable noise
barrier during breaking work to minimize noise impact.
|
14-Oct-22
|
|
13-Oct-22
|
Waste
Management
|
The contractor was reminded that waste stored on-site
should be removed from site as soon as possible.
|
The contractor has removed the waste off
site.
|
14-Oct-22
|
|
27-Oct-22
|
Water Quality
|
The contractor was reminded that gap at the
seaside protective measure should be avoided.
|
The contractor has filled the gap at the
seaside protective measure. A layer of sandbags has also provided for seaside
protective measure.
|
29-Oct-22
|
Construction phase weekly site
inspections were carried out on 05, 12, 19 and 26 October 2022 at Zone 2B &
2C. The joint site inspection with IEC, ET, ER and Contractor for Zone 2B &
2C was held on 12 October 2022. All observations have been recorded in the site
inspection checklist and passed to the Contractor together with the appropriate
recommended mitigation measures where necessary.
FEHD
inspection was carried out on 12 October
2022 at Zone 2B & 2C site. The purpose of the FEHD visit was to inspect the
potential mosquito breeding. No adverse comments have been received. FEHD officer advised
contractor on some potential stagnant water area that needs to pay attention
with and raised their concern on flies issue in construction site.
The key observations from the site inspections and associated
recommendations are summarized in Table 4.2.
Table 4.2: Summary
of Site Inspections and Recommendations for Zone 2B & 2C
|
Inspection Date
|
Parameter
|
Observation / Recommendation
|
Contactor’s Responses / Action(s) Undertaken
|
Close-out (Date)
|
|
05-Oct-22
|
Noise impact
|
The
contractor was reminded that noise barriers shall be set up properly,
particularly for operating RCD platforms and power packs, to minimize noise
impact to the NSRs.
|
The
contractor has properly set up the noise barriers to minimize noise impact.
|
12-Oct-22
|
|
05-Oct-22
|
Noise impact
|
The
contractor was reminded that noise enclosure or acoustic shed shall be
adopted for the excavator with hydraulic breaker during breaking works.
|
The
contractor has dismantled the hydraulic breaker from excavator and wrapped
with noise barrier.
|
05-Oct-22
|
|
05-Oct-22
|
Water Quality
|
The
contractor was reminded to strengthen and maintain the temporary drainage
system to prevent any potential wastewater runoff.
|
The
contractor has strengthened and maintained the runoff barriers.
|
07-Oct-22
|
|
05-Oct-22
|
Water Quality/Land Contamination
|
The
contractor was reminded that fuel drums shall only be stored in designated
areas which have pollution prevention facilities or drip tray with adequate
capacity.
|
The
contractor has removed the fuel drums to designated areas.
|
05-Oct-22
|
|
05-Oct-22
|
Noise impact
|
The
contractor was reminded to close the door/flap of the air compressor/power pack/generator
when they are in use.
|
The
contractor has closed the door/flap of the air compressor/power
pack/generator.
|
11-Oct-22
|
|
05-Oct-22
|
Waste
Management
|
The
contractor was reminded to remove general refuse to designated landfill
facilities regularly to avoid accumulation.
|
The
contractor has removed
general
refuse to designated
landfill
facilities.
|
11-Oct-22
|
|
05-Oct-22
|
Air Quality
|
The
contractor was reminded that NRMM label shall be properly displayed on all
regulated machineries which can be easily visible.
|
The
contractor has provided the NRMM label for the regulated machineries.
|
10-Oct-22
|
|
12-Oct-22
|
Land Contamination
|
The
contractor was reminded to tidy up the construction area or remove the wasted
construction materials to designated area.
|
The
contractor has tidied up the construction area and removed the wasted
construction materials.
|
19-Oct-22
|
|
12-Oct-22
|
Air Quality
|
The
contractor was reminded that dust suppression measures shall be strengthen at
the access road to minimize dust impact.
|
The
contractor has spayed water at the access road.
|
17-Oct-22
|
|
12-Oct-22
|
Noise impact
|
The
contractor was reminded to close the door/flap of the air compressor/power
pack/generator when they are in use.
|
The
contractor has closed the door/flap of the air compressor/power
pack/generator.
|
17-Oct-22
|
|
12-Oct-22
|
Water Quality/Land Contamination
|
The
contractor was reminded that fuel drums shall only be stored in designated
areas which have pollution prevention facilities or drip tray with adequate
capacity.
|
The
contractor has removed the fuel drums to designated areas.
|
19-Oct-22
|
|
12-Oct-22
|
Noise impact
|
The
contractor was reminded that noise barriers shall be set up properly,
particularly for operating power packs, to minimize noise impact to the NSRs
|
The
contractor has properly set up the noise barriers to minimize noise impact.
|
19-Oct-22
|
|
19-Oct-22
|
Land Contamination
|
The
contractor was reminded to tidy up the construction area or remove the wasted
construction materials to designated area.
|
The
contractor has tidied up the construction area.
|
26-Oct-22
|
|
19-Oct-22
|
Noise impact
|
The
contractor was reminded that noise barriers shall be set up properly,
particularly for operating power packs, to minimize noise impact to the NSRs.
|
The
contractor has properly set up the noise barriers to minimize noise impact.
|
26-Oct-22
|
|
19-Oct-22
|
Noise impact
|
The
contractor was reminded to close the door/flap of the air compressor/power
pack/generator when they are in use.
|
The
contractor has closed the door/flap of the air compressor/power
pack/generator.
|
23-Oct-22
|
|
19-Oct-22
|
Water Quality
|
The
contractor was reminded to strengthen and maintain the temporary drainage
system to prevent any potential wastewater runoff.
|
The
contractor has strengthened and maintained the runoff barriers.
|
20-Oct-22
|
|
26-Oct-22
|
Water Quality/Land Contamination
|
The
contractor was reminded that fuel drums shall only be stored in designated
areas which have pollution prevention facilities or drip tray with adequate
capacity.
|
The
contractor has removed the fuel drums to designated areas.
|
02-Nov-22
|
|
26-Oct-22
|
Air Quality/ Water Quality
|
The
contractor was reminded that idle stockpile of dusty materials shall be fully
covered with tarpaulin or removed off site as frequently as practicable.
|
The
contractor has removed the idle stockpile from the site.
|
02-Nov-22
|
|
26-Oct-22
|
Water Quality
|
The
contractor was reminded to strengthen and maintain the temporary drainage
system to ensure that can be operated efficiently.
|
The
contractor has strengthened and maintained the temporary drainage system.
|
01-Nov-22
|
|
26-Oct-22
|
Noise impact
|
The
contractor was reminded to close the door/flap of the air compressor/power
pack/generator when they are in use.
|
The
contractor has closed the door/flap of the air compressor/power
pack/generator.
|
26-Oct-22
|
|
26-Oct-22
|
Water Quality
|
The
contractor was reminded to clean up the silt to prevent any potential leakage
overflow into the discharge point.
|
The
contractor has cleaned up the silt and erected the runoff barriers.
|
30-Oct-22
|
The Contractors have been
registered as a chemical waste producer for the Project. Construction and
demolition (C&D) material sorting will be carried out on site. A sufficient
number of receptacles were available for general refuse collection.
As advised by the Zone 2A Contractor, 0.0 tonne and 0.0 tonne of inert C&D material were disposed of as public fill to Tseung Kwan O Area 137 Public Fill and Tuen
Mun Area 38 Public Fill respectively, while 9.68 tonnes of general refuse were
disposed of at SENT landfill respectively. 0.0 tonne of metals, 0.0 tonne of
paper/cardboard packaging, 0.0 tonne of plastics and 0.0 tonne of timber was
collected by recycling contractors in the reporting month. 67.20 tonnes of
inert C&D material were reused on site. 0.0 tonne of inert C&D material
were reused in other projects and 0.0 tonne of inert C&D material was
imported for reuse at site in the reporting month. 0.0 tonne of inert C&D
material were disposed to sorting facility and 0.0 tonne of chemical waste was
collected by licensed contractors in the reporting period.
As
advised by the Zone 2B & 2C Contractor, 20.40 tonnes, 9195.83 tonnes and 25170.91
tonnes of inert C&D material were disposed of as public fill to Chai Wan
Public Fill Barging Point, Tseung Kwan O Area 137 Public Fill and Tuen Mun Area 38 Public Fill respectively, while 28.50
tonnes of general refuse were disposed of at SENT landfill. 86.63 tonne of
metals, 0.0 tonne of paper/cardboard packaging, 0.0 tonne of plastics and 0.0
tonne of timber was collected by recycling contractors in the reporting month. 4340.02
tonnes of inert C&D material were reused on site. 2447.22 tonnes of inert
C&D material were reused in other projects and 0.0 tonne of inert C&D
material was imported for reuse at site in the reporting month. 0.0 tonne of
inert C&D material was disposed to sorting facility and 0.0 tonne of chemical waste was collected by licensed contractors in the
reporting period.
The cumulative waste generation
records for Zone 2A and Zone 2B & 2C are shown in Appendix I.
The environmental permits,
licenses, and/or notifications on environmental protection for this Project
which were valid during the period are summarised in Table 4.3.
Table 4.3: Status
of Environmental Submissions, Licenses and Permits for Zone 2A
|
Permit
/ License No.
/
Notification /
Reference
No.
|
Valid
Period
|
Status
|
Remarks
|
|
From
|
To
|
|
Chemical
Waste Producer Registration
|
|
WPN5113-256-B2597-01
|
10-Sep-20
|
--
|
Valid
|
--
|
|
Billing
Account Construction Waste Disposal
|
|
7037500
|
09-Jun-20
|
--
|
Account Active
|
--
|
|
Construction
Noise Permit
|
|
GW-RE0432-22
|
11-May-22
|
10-Nov-22
|
Valid
|
Pumping Test
|
|
Wastewater
Discharge License
|
|
WT00037344-2021
|
01-Feb-21
|
28-Feb-26
|
Valid
|
--
|
|
Notification
under Air Pollution Control (Construction Dust) Regulation
|
|
456376
|
21-May-20
|
--
|
Notified
|
--
|
The environmental permits,
licenses, and/or notifications on environmental protection for this Project
which were valid during the period are summarised in Table 4.4.
Table 4.4: Status
of Environmental Submissions, Licenses and Permits for Zone 2B & 2C
|
Permit /
License No.
/
Notification /
Reference
No.
|
Valid Period
|
Status
|
Remarks
|
|
From
|
To
|
|
Chemical
Waste Producer Registration
|
|
WPN5113-256-V2302-01
|
17-Aug-21
|
--
|
Valid
|
--
|
|
Billing
Account Construction Waste Disposal
|
|
7041264
|
11-Aug-21
|
--
|
Account Active
|
--
|
|
Construction
Noise Permit
|
|
GW-RE0984-22
|
24-Sep-22
|
23-Nov-22
|
Valid
|
--
|
|
Wastewater
Discharge License
|
|
WT00039734-2021
|
25-Nov-21
|
30-Nov-26
|
Valid
|
--
|
|
Notification
under Air Pollution Control (Construction Dust) Regulation
|
|
470022
|
29-Jul-21
|
--
|
Notified
|
--
|
The EM&A programme followed
the recommended mitigation measures in the EM&A Manual. The EM&A
requirements as well as the summary of implementation status of the
environmental mitigation measures are provided in Appendix J. In particular, the following
mitigation measures were brought to attention during the site inspections:
Noise Impact
– Movable
noise barriers should be properly set up at noisy work area (e.g. breaking
work) to minimize noise impact to NSRs.
Waste Management
–
Waste stored on-site should
be removed from site as soon as possible.
Temporary Water Drainage System
& Water Quality
– Gap
at the seaside protective measure should be avoided to prevent surface runoff
to the nearby waterbody during storm events.
Air
Quality
– NRMM
Label should be provided for all regulated machinery on site.
Noise Impact
– Noise
barriers should be properly set up to minimize noise impact to NSRs.
Waste Management
–
Chemical wastes should
be properly placed with
drip trays/removed to storage area to prevent chemical spillage.
–
Carry out waste
sorting as far as practicable and remove all general waste to designated
landfill facilities regularly.
Temporary Water Drainage System
& Water Quality
– Idle stockpile of construction
materials should be fully covered with tarpaulin when not being used or removed
from the site during rainstorm.
– Temporary
drainage system shall be maintained regularly to ensure efficient operation.
The status
of the required submission under the EP during the reporting period is
summarized in Table 5.1.
Table 5.1: Status of Submissions under the Environmental Permit
|
EP Condition
|
Submission
|
Submission
Date
|
|
Condition 3.4
|
Monthly EM&A Report for September 2022
|
13 October 2022
|
There
was no breach of Action or Limit levels for Air Quality (1-hour TSP and 24-hour
TSP) in this reporting month.
Two
Action Level exceedance due to Two complaints with no Limit Level exceedance of
Construction Noise was recorded in the reporting month.
Two environmental
complaints were received in the reporting month.
On 07 October 2022, the EPD and Communications
and Public Affairs Department/WKCDA have received
a complaint from Mr. Leung, assistant of Mr. HUNG, the district councilor of Yau Tsim Mong
District Council (YTMDC), regarding noise pollution at WKCD construction site.
The complainant claimed that:“本年3月至4月期間，就本辦事處轉介九龍站住戶投訴有關西九文化區地盤每天早上持續發出高頻率的施工噪音滋擾問題，感謝閣下於本年5月份回函並採取了多項措施，有關施工噪音滋擾情況亦見有所改善。然而，近日再次接連收到有居民投訴，上述地盤的噪音滋擾又趨嚴重，每天早上7時已經開動大型機器，直至晚上8時地盤仍有很大的噪音發出(請見附件由居民拍攝的短片)，實在非常擾民。由於西九文化區地盤頗為鄰近九龍站民居，希望 貴局正視施工噪音嚴重影響附近居民作息和日常生活，敦促承辦商避免在平日早上9 時前及晚上7時後及公眾假期進行高噪音工序，盡量減低對居民的滋擾。”(Residents from
The Arch claim that noise generated from WKCD construction site starting from
7:00 am and until 8:00 pm caused disturbance to nearby resident. Mr. Leung has
reminded WKCDA and the Contractors avoid noisy works before 9:00 am and after
7:00 pm on normal weekdays and on public holidays to minimise nuisance to the
residents.) The complainant has also provided a video clip demonstrating the
concerned noise during nighttime on 05 October 2022. Investigation at Zone 2A
site revealed that no site
activity was conducted before 8:00 am and after 7:00 pm (no nighttime work) on
Zone 2A site in October 2022. Thereby, the complaint might not be attributable
to the Zone 2A site (based on the described noise source and video clip
provided by the complainant). Nonetheless, the Contractor is recommended to
maintain close monitoring of noise control on site, and strengthen the
implementation of noise mitigation measures to reduce impacts to the nearby
residents. Investigation at Zone 2B & 2C site
revealed that some noise might be related to the construction activities
conducted at Zone 2B & 2C site. However, those construction activities were
conducted within statutory working hours and under the approved construction
noise permit (GW-RE0984-22) during restricted hours. Nonetheless, the
Contractor is recommended to maintain close monitoring of noise control on
site, and strengthen the implementation of noise mitigation measures to reduce
impacts to the nearby residents.
On 29 October 2022, the EPD has received a complaint from Mr. Leung,
assistant of Mr. HUNG, the district councilor of Yau Tsim Mong District Council
(YTMDC), regarding noise pollution at WKCD construction site, and referred to
WKCDA on 31 October 2022. The complainant claimed that:“本辦事處持續收到九龍站居民投訴西九文化區地盤施工造成噪音和塵埃滋擾，近日再有投訴，指西九文化區地盤晚上10時多仍在施工，噪音影響居民正常作息 (請見附件短片) 。現特函促請 環保署派員巡查確保地盤施工符合環保條例規定，敦促承辦商加強地盤的隔音措施，避免在早上9 時前及晚上7時後進行高噪音工序，盡量減低對居民的滋擾。”(The complainant claimed that WKCD construction site is still under
construction after 10:00 pm, and the noise caused disturbance to nearby
residents. The complainant also reminded the Contractors to strengthen the
noise mitigation measures and avoid noisy works before 9:00 am and after 7:00
pm to minimise nuisance to the residents.) The complainant has also provided a
video clip showing the concerned noise source during nighttime works. Investigation
at Zone 2A site revealed that no site
activity was conducted before 8:00 am and after 7:00 pm (no nighttime works) on
WKCD Zone 2A site in October 2022. Thereby, the complaint may not be
attributable to the Zone 2A site. Nonetheless, the Contractor is recommended to
maintain close monitoring of noise control on site, and strengthen the
implementation of noise mitigation measures to reduce impacts to the nearby
residents. Investigation at Zone 2B & 2C site revealed that the concerned noise might
be related to the construction activities carried out on 28 October 2022 at
Zone 2B & 2C site. Therefore, the complaint might be attributable to the
Zone 2B & 2C site. However, those construction activities were conducted under
the approved construction noise permit (No. GW-RE0984-22) during the restricted
hours. Nonetheless, the Contractor is recommended to maintain close monitoring
of noise control on site, and strengthen the implementation of noise mitigation
measures to reduce impacts to the nearby residents.
The cumulative statistics
on complaints were provided in Appendix K.
No notifications of summons
or successful prosecutions were received this month. The cumulative statistics
on notifications of summons and successful prosecutions were provided in Appendix K.
The major
site works for Zone 2A scheduled to be commissioned in the coming month include:
Zone 2A-1
● Site
Works before Handover
– Site
Clearance
Zone 2A-2
● Site
Works before Handover
– Site
Clearance
The major site works for Zone 2B
& 2C scheduled to be commissioned in the coming month include:
KD05 (Section 1), KD06 (Section 2), KD07 (Section 3), KD08 (Section 4) and KD09 (Section 5)
● Bored Pile Works
– RCD Drilling, Airlifting, Cage Installation & Concreting and
Excavation
Key issues to be considered in
the coming month include:
●
Generation of dust from construction works;
● Noise impact from construction
works;
● Generation of site surface
runoffs and wastewater from activities on-site;
● The temporary drainage system
should be well managed and updated with the site condition, particularly on
rainy days;
● Management of stockpiles and
slopes, particularly on rainy days;
● Management of chemicals and
avoidance of oil spillage on-site.
● Sorting, recycling, storage and
disposal of general refuse and construction waste; and
Key issues to be considered in
the coming month include:
● Generation of dust from
construction works;
● Noise impact from piling works;
● Generation of site surface
runoffs and wastewater from activities on-site;
● Management of stockpiles and
slopes, particularly on rainy days;
● Sorting, recycling, storage and
disposal of general refuse and construction waste; and
● Management of chemicals and
avoidance of oil spillage on-site.
The environmental site inspection and environmental
monitoring will be continued in the coming month. Impact monitoring for air
quality and noise
for Zone 2A and Zone 2B & 2C in accordance with the
approved EM&A Manual has commenced since 03 October 2020 and 30 September 2021
respectively. The tentative monitoring schedule for the
coming month is shown in the Appendix E.
The EM&A programme as recommended in the EM&A Manual has
been undertaken with the commencement of the construction activities at Zone 2A
on 03 October 2020, and the major construction works of Zone 2B & 2C
commenced on 30 September 2021.
Monitoring of air quality and noise with respect to the Projects is
underway. In particular, the 1-hour TSP, 24-hour TSP,
noise level (as Leq, 30 minutes) under monitoring have been
checked against established Action and Limit levels. There was no breach of
Action or Limit levels for Air Quality (1-hour TSP and 24-hour TSP) in this
reporting month. Two Action Level exceedance due to two complaints with no
Limit Level exceedance of Construction Noise was recorded in the reporting
month.
Two environmental complaints were
recorded in the reporting month. No notifications of summons or successful prosecutions were
received during the reporting month.
Weekly
construction phase site inspections and bi-weekly landscape and visual impact
inspections were conducted during the reporting month as required. It was
observed that the Contractors had implemented all possible and feasible
mitigation measures to mitigate the potential environmental impacts during
construction phase works.
Potential environmental impacts
due to the construction activities, including air quality, noise, water quality, waste, landscape and visual, will
be monitored or reviewed. The recommended environmental mitigation measures
shall be implemented on site and regular inspections as required will be
carried out to ensure that the environmental conditions are acceptable.
