_V0-1_files/image002.jpg)
_V0-1_files/image004.jpg)
_V0-1_files/image006.jpg)
_V0-1_files/image008.jpg)
Table
of Contents
2.......... Project Information
2.3 Construction Programme and Activities
2.5 Status of Environmental Licences, Notification and
Permits
3.......... Environmental
Monitoring Requirements
3.1 Construction Dust Monitoring
3.2 Construction Noise Monitoring
4.......... Implementation Status of Environmental
Mitigation Measures
5.......... Monitoring Results
5.1 Construction Dust Monitoring
5.2 Regular Construction Noise Monitoring
6.......... ENVIRONMENTAL SITE INSPECTION AND AUDIT
7.......... Environmental
Non-conformance
7.1 Summary of Monitoring Exceedances
7.2 Summary of Environmental Non-Compliance
7.3 Summary of Environmental Complaints
7.4 Summary of Environmental Summon and Successful
Prosecutions
8.1 Construction Programme for the Next Three Months
8.2 Key Issues for the Coming Month
8.3 Monitoring Schedule for the Coming Month
9.......... ConclusionS AND RECOMMENDATIONS
List of Tables
Table 2.1.......... Construction Activities in the reporting month
Table 2.2.......... Contact Information of Key Personnel
Table 2.3.......... Status of Environmental Licenses, Notifications and
Permits
Table 3.1
........ Air
Quality Monitoring Equipment
Table 3.2
........ Location
of Construction Dust Monitoring Station
Table 3.3 ........ Noise Monitoring Parameters, Frequency and Duration
Table 3.4
........ Noise
Monitoring Equipment for Regular Noise Monitoring
Table 3.5 ........ Noise Monitoring Stations during Construction Phase
Table 3.6 ........ Noise Monitoring Parameters, Frequency and Duration
Table 4.1.......... Status of Required Submission under Environmental Permit
Table 5.1 ........ Summary of 24-hour TSP Monitoring Result in the
Reporting Period
Table 5.2 ........ Summary of 1-hour TSP Monitoring Result in the
Reporting Period
Table 5.3 ........ Summary of Construction Noise Monitoring Results in the
Reporting Period
Table 6.1 ........ Observations and Recommendations of Site Audit
Table 8.1.......... Construction Activities in the coming three months
List of Figures
|
Site Layout Plan |
|
|
Location of Air
Quality Monitoring Station |
|
|
Locations of Noise
Monitoring Station |
|
|
|
|
List
of Appendices
|
Construction Programme |
|
|
Project Organization
Structure |
|
|
Implementation
Schedule of Environmental Mitigation Measures |
|
|
Summary of Action
and Limit Levels |
|
|
Calibration
Certificates of Equipment |
|
|
EM&A Monitoring
Schedules |
|
|
Air Quality
Monitoring Results and their Graphical Presentations |
|
|
Noise Monitoring
Results and their Graphical Presentations |
|
|
Event and Action
Plan Cumulative
Statistics on Complaints, Notification of Summons and Successful Prosecutions |
|
|
Monthly Summary
Waste Flow Table Shatin to Central
Link (Hung Hom – Admiralty Section) Kai Tak Barging
Facility under FEP-01/436/2012/F Monthly EM&A Report for February 2022 |
|
|
|
|
EXECUTIVE
SUMMARY
Central Kowloon Route – Kai Tak West (CKR-KTW; Contract No. HY/2014/07)
(hereafter called “the Project”) covers part of the construction of the Central
Kowloon Route (CKR).
The Project comprises
the follow works:
·
50x30m access shaft with noise enclosure
at Ma Tau Kok (MTK);
·
100m long cut-and-cover (C&C) tunnel
at MTK;
·
Demolition and re-provisioning of MTK
Public Pier;
·
160m long underwater tunnel (UWT) (Stage 1);
·
210m long UWT (Stage 2);
·
60m long C&C tunnel at Kai Tak;
·
130m long depressed road and 200m long
underpass at Kai Tak;
·
390m long underground tunnel ventilation adit at Kai Tak;
·
Seawall demolition and construction of new
landing steps; and
·
Barging Point enclosure and conveyor
system.
The EM&A programme commenced on 4 April 2018.The impact EM&A for the Project includes air
quality and noise monitoring.
This is the 47th
monthly EM&A Report presenting the EM&A works carried out during the
period between 1 and 28 February 2022. As informed by the Contractor, major
activities in the reporting period were:
|
Locations |
Site Activities |
|
Kai Tak |
·
Backfilling at depressed road and C&C; ·
Drainage construction at cut & cover; ·
Tunnel walkway construction. |
|
Ma Tau Kok |
·
TTM implementation; ·
Pre-grouting works for pipe piling works for MTK C&C Tunnel; ·
Pipe piling works for MTK C&C tunnel; ·
Double sheet pile wall construction at MTK |
|
Kowloon Bay |
·
Seawall Reinstatement at Stage 1 UWT; ·
Pipe pile and sheet pile removal at Stage 1 UWT; ·
Piling Works for Stage 2 UWT; ·
Marine King Post and Access Platform Construction. |
Breaches
of Action and Limit Levels for Air Quality
All
24-hour TSP result was below the Action and Limit Levels at all monitoring
locations in the reporting month.
All
1-hour TSP result was below the Action and Limit Levels at all monitoring
locations in the reporting month.
Breaches
of Action and Limit Levels for Noise
One
(1) noise-related complaint was received in the reporting month. Therefore,
one action level of construction noise was triggered, and the investigation
report was finalized on 21 February 2022. Based on the investigation results
from finalized investigation report, it was concluded that the complaint was no-project
related
Regular
Noise Monitoring
No
exceedance of Limit level of noise was recorded in the reporting month.
Complaint,
Notification of Summons and Successful Prosecution
One
(1) environmental related complaint was received in the reporting month as
follows:
|
No. |
Date received |
Complaint No. |
Parameter |
Status |
|
1 |
6 February 2022 (Referred by Gammon Construction Limited on 7 February 2022) |
EC-048- K10/RE/00003196-22 |
Noise
and Water |
Closed |
No notification of summons
and successful prosecution were received in the reporting month.
Reporting
Changes
No report changes in the reporting period.
Future
Key Issues
Key issues to be
considered in the next three months included:
|
Locations |
Site Activities |
|
Kai Tak |
- Backfilling works and re-prop
removal at underpass and C&C; |
|
Ma Tau Kok |
- TTM implementation; |
|
Kowloon Bay |
- Piling Works at Stage 2 UWT; |
|
|
|
Potential environmental impacts
arising from the above construction activities are mainly associated with construction
dust, construction noise, water
pollution control, and waste management.
1
INTRODUCTION
Gammon Construction Limited was commissioned
by the Highways Department as the Civil Contractor for Works Contract HY/2014/07.
AECOM Asia Company Limited (AECOM) was appointed by Gammon Construction Limited
as the Environmental Team (ET) to undertake the Environmental Monitoring and Audit
(EM&A) programme during construction phase of the
Project.
1.1 Purpose of the Report
1.1.1
This is the 47th monthly
EM&A Report which summaries the impact monitoring results and audit findings
for the Project during the reporting period between 1 and 28 February 2022.
1.2 Report Structure
1.2.1
This monthly EM&A
Report is organized as follows:
· Section 1: Introduction
· Section 2: Project Information
· Section 3: Environmental Monitoring Requirement
· Section 4: Implementation Status of Environmental Mitigation Measures
· Section 5: Monitoring Results
· Section 6: Environmental Site Inspection and Audit
· Section 7: Environmental Non-conformance
· Section 8: Future Key Issues
· Section 9: Conclusions and Recommendations
2
Project Information
2.1 Background
2.1.1
CKR
is a dual 3-lane trunk road across central Kowloon linking the West Kowloon in
the west and the Kai Tak Development (KTD) in the east. The CKR will be about
4.7 km long with an underground tunnel section of about 3.9 km long, in particular, there will be an underwater tunnel of about
370 m long in Kowloon Bay to the north of the To Kwa Wan Typhoon Shelter. It
will connect the West Kowloon Highway at Yau Ma Tei Interchange with the road network at Kowloon Bay and
the future Trunk Road T2 at KTD which will connect to the future Tseung Kwan O – Lam Tin Tunnel (TKO-LTT) and Cross Bay Link
(CBL). CKR, Trunk Road T2 and TKO-LTT will form a strategic highway link,
namely Route 6, connecting West Kowloon and Tseung
Kwan O. In addition, 3 ventilation buildings, which will be
located in Ya Ma Tei,
Ho Man Tin and ex-Kai Tak airport area, are proposed to ensure acceptable air
quality within the tunnel.
2.1.2
The
Environmental Impact Assessment (EIA) Report for Central
Kowloon Route (Register No.: AEIAR-171/2013) was approved on 11 July
2013 under the Environmental Impact Assessment Ordinance (EIAO). Following the
approval of the EIA Report, an Environmental Permit (EP) for CKR was granted on
9 August 2013 (EP No.: EP- 457/2013) for the construction and operation. Variation
of EP (VEP) was subsequently applied and the latest EP (EP No. EP-457/2013/D)
was issued by the Director of Environmental Protection (DEP) on 15 June 2021.
Further Environmental Permit (EP No.
FEP-01/457/2013/C) for CKR – Kai Tak West was issued on 28 February 2018.
2.1.3 The construction of the CKR had been divided into different sections.
This Work Contract HY/2014/07 – Kai Tak West (KTW) (“The Project”) will include a road which
is a trunk road, including new roads, and major extensions or improvements to
existing roads; a road fully enclosed by decking above and by structure on the
sides for more than 100 m; and reclamation works (including associated dredging
works) more than 1 ha in size and a boundary of which is less than 100 m from
an existing residential area.
2.1.4 The site layout plan of the Project
is shown in Figure 1.1.
2.2 Site Description
2.2.1 The major construction activities
under this Project include:
(a)
construction of approximately 160m long
cut-and-cover tunnel and 370m long underwater tunnel between the tunnel section
at Ma Tau Kok and the depressed road of the CKR
within Kai Tak Development;
(b)
reconstruction of the seawall at Ma Tau
Kok public pier, and the sloping seawall at the
Former Kai Tak Airport Runway;
(c)
construction of approximately 125m long
depressed road and 200m long underpass of the CKR within Kai Tak Development;
(d)
construction of approximately 360m long
underground tunnel ventilation adit of the CKR;
(e)
reconstruction of Kowloon City Ferry
Pier Public Transport Interchange; and
(f)
other associated works.
2.3 Construction Programme and Activities
2.3.1 The major construction activities
undertaken in the reporting month are summarized in Table 2.1.
Table 2.1 Construction Activities in the reporting month
|
Locations |
Site Activities |
|
Kai
Tak |
·
Backfilling at depressed road and C&C; ·
Drainage construction at cut & cover; ·
Tunnel walkway construction. |
|
Ma
Tau Kok |
·
TTM implementation; ·
Pre-grouting works for pipe piling works for MTK C&C Tunnel; ·
Pipe piling works for MTK C&C tunnel; ·
Double sheet pile wall construction at MTK |
|
Kowloon
Bay |
·
Seawall Reinstatement at Stage 1 UWT; ·
Pipe pile and sheet pile removal at Stage 1 UWT; ·
Piling Works for Stage 2 UWT; ·
Marine King Post and Access Platform Construction. |
2.3.2
The construction programme is presented in Appendix A.
2.4 Project Organization
2.4.1
The project
organization structure is shown in Appendix
B. The key personnel contact names and numbers for the Project are summarized
in Table 2.2.
Table 2.2 Contact Information of Key Personnel
|
Party |
Role |
Position |
Name |
Telephone |
Fax |
|
Arup-Mott
MacDonald Joint Venture |
Residential
Engineer (ER) |
Engineer’s
Representative |
Mr. Jeffrey
Lau |
2268 3640 |
2268 3954 |
|
ERM |
Independent
Environmental Checker (IEC) |
Independent
Environmental Checker |
Ms. Mandy To |
2271 3113 |
3015 8052 |
|
Gammon |
Contractor |
Contracts Manager |
Mr. Kin Fai Tam |
2516 8823 |
2516 6260 |
|
Environmental Manager |
Ms Michelle Tang |
9267 8866 |
2516 6260 |
||
|
AECOM |
Contractor’s
Environmental Team (ET) |
ET Leader |
Mr. Y T Tang |
3922 9393 |
2317 7609 |
2.5 Status of Environmental Licences, Notification and Permits
2.5.1 Relevant environmental licenses, permits and/or
notifications on environmental protection for this Project and valid in the
reporting month are summarized in Table 2.3.
Table 2.3 Status of Environmental Licenses, Notifications and Permits
|
Permit / License No. / Notification/
Reference No. |
Valid Period |
Status |
Remarks |
|
|
From |
To |
|||
|
Further Environmental Permit |
||||
|
FEP-01/457/2013/C |
28 Feb 2018 |
End of Project |
Valid |
-- |
|
Wastewater Discharge License |
||||
|
WT00030290-2018 |
22 Mar 2018 |
31 May 2023 |
Valid |
Ma Tau Kok |
|
WT00030668-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Site Office at Kai Tak West |
|
WT00030358-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Kai Tak West |
|
WT00030330-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Kowloon Bay |
|
Construction Noise Permit |
||||
|
GW-RE0732-21 |
3 Aug 2021 |
2 Feb 2022 |
Superseded by
GW-RE0045-22 |
General Works at Ma Tau Kok |
|
GW-RE0045-22 |
2 Feb 2022 |
1 Aug 2022 |
Valid |
|
|
GW-RE1311-22 |
11 Jan 2022 |
10 Jul 2022 |
Valid |
General Works at Kai Tak |
|
GW-RE1152-21 |
21 Nov 2021 |
20 May 2022 |
Valid |
General Works at Stage 1 Underwater Tunnel |
|
GW-RE0052-22 |
31 Jan 2022 |
30 Apr 2022 |
Valid |
General Works at Stage 2 Underwater Tunnel |
|
PP-RE0002-22 |
31 Jan 2022 |
30 Jul 2022 |
Valid |
Percussive Piling at Stage 2 Underwater Tunnel |
|
Chemical
Waste Producer Registration |
||||
|
5118-247-G2347-47 |
30 Jan 2018 |
End of Project |
Valid |
-- |
|
5118-247-G2347-48 |
30 Jan 2018 |
End of Project |
Valid |
-- |
|
Marine Dumping Permit |
||||
|
-- |
-- |
-- |
-- |
-- |
|
Billing Account for Construction
Waste Disposal |
||||
|
7029909 |
22 Jan 2018 |
End of Project |
Account Active |
-- |
|
7031949 |
26 Nov 2021 |
28 Feb 2022 |
Account Active |
Billing Account for Disposal of Construction Waste (by
vessels) |
|
Notification Under Air Pollution
Control (Construction Dust) Regulation |
||||
|
429442 |
5 Jan 2018 |
5 Jul 2025 |
Notified |
-- |
|
|
||||
3
Environmental Monitoring Requirements
3.1 Construction Dust Monitoring
Monitoring Requirements
3.1.1
In accordance with the approved EM&A Manual, measurement of 24-hour and
1-hour Total Suspended Particulates (TSP) level at the designated air quality
monitoring station is required. Impact 24-hour TSP
monitoring should be carried out for at least once every 6 days, and 1-hour TSP monitoring should be done at least 3 times
every 6 days while the highest dust impact is expected. The Action and Limit Levels
of the air quality monitoring is provided in Appendix D.
Monitoring Equipment
3.1.2
24-hour TSP
air quality monitoring was performed using High Volume Sampler (HVS) located at
the designated monitoring station. The HVS meets all the requirements of the
EM&A Manual.
3.1.3
A portable
direct reading dust meter was used to carry out the 1-hour TSP monitoring.
3.1.4
Brand and
model of the equipment is given in Table 3.1.
Table 3.1 Air Quality Monitoring Equipment
|
Tisch
Total Suspended Particulate Mass Flow Controlled High Volume Air Sampler |
|
|
Calibration
Kit (24-hour
TSP) |
TISCH
Environmental Orifice |
|
Portable
direct reading dust meter |
Sibata Digital Dust Monitor |
Monitoring Locations
3.1.5
The
monitoring station for construction dust monitoring pertinent to the Project
has been identified based on the approved EM&A Manual for the Project. The
location of the construction dust monitoring station is summarized in Table 3.2 and
shown in Figure 3.1.
Table 3.2 Location of Construction Dust Monitoring Station
|
Location |
Monitoring Station |
Description |
|
E-A14a
[1] |
Block
B of Merit Industrial Centre |
Rooftop
(13/F) |
[1] The air monitoring station proposed in the
EM&A Manual (i.e. Wyler Gardens with ID: E-A14)
was not available for impact dust monitoring, therefore impact monitoring was
conducted at E-A14a as an alternative which was agreed by the ER, IEC and EPD.
Monitoring
Methodology
3.1.6 24-hour
TSP Monitoring
(a)
The HVS was
installed in the vicinity of the air sensitive receivers. The following criteria were considered in the
installation of the
HVS as far as practicable: -
(i)
A horizontal platform with
appropriate support to secure the sampler against gusty wind was provided.
(ii)
Two samplers should
not be placed less than 2m apart from each other;
(iii)
The distance between the HVS and
any obstacles, such as buildings, was at least twice the height that the
obstacle protrudes above the HVS.
(iv)
A minimum of 2 meters separation
from walls, parapets and penthouse for rooftop
sampler.
(v)
A minimum of 2 meters separation
from any supporting structure, measured horizontally is required.
(vi)
No furnace or incinerator flues
nearby.
(vii)
Airflow around the sampler was
unrestricted.
(viii)
The sampler was located more than
20 meters from any dripline.
(ix)
Any wire fence and gate, required
to protect the sampler, did not obstruct the monitoring process.
(x)
Permission was obtained to set up
the samplers and access to the monitoring station.
(xi)
A secured supply of electricity
was obtained to operate the sampler.
(b)
Preparation of
Filter Papers
(i)
Glass fibre filters, G810 were
labelled and sufficient filters that were clean and without pinholes were
selected.
(ii)
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;
the relative humidity (RH) was < 50% and not variable by more than ±5%. A
convenient working RH was 40%.
(iii)
All filter papers were prepared
and analysed by ALS Technichem
(HK) Pty Ltd., which is a HOKLAS accredited laboratory and has comprehensive quality assurance and quality control programmes.
(c)
Field
Monitoring
(i)
The power supply was checked to ensure the HVS works properly.
(ii)
The filter holder and the area
surrounding the filter were cleaned.
(iii)
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.
(iv)
The filter was properly aligned
on the screen so that the gasket formed an airtight seal on the outer edges of
the filter.
(v)
The swing bolts were fastened to
hold the filter holder down to the frame.
The pressure applied was sufficient to avoid air leakage at the edges.
(vi)
Then the shelter lid was closed
and was secured with the aluminium strip.
(vii)
The HVS was warmed-up for about 5
minutes to establish run-temperature conditions.
(viii)
A new flow rate record sheet was
set into the flow recorder.
(ix)
On site temperature and
atmospheric pressure readings were taken and the flow rate of the HVS was
checked and adjusted at around 1.3 m3/min, and complied with the
range specified in the EM&A Manual (i.e. 0.6-1.7 m3/min).
(x)
The programmable digital timer
was set for a sampling period of 24 hrs, and the starting time, weather
condition and the filter number were recorded.
(xi)
The initial elapsed time was
recorded.
(xii)
At the end of sampling, on site temperature
and atmospheric pressure readings were taken and the final flow rate of the HVS
was checked and recorded.
(xiii)
The final elapsed time was
recorded.
(xiv)
The sampled filter was removed
carefully and folded in half length so that only
surfaces with collected particulate matter were in contact.
(xv)
It was then placed in a clean
envelope and sealed.
(xvi)
All monitoring information was
recorded on a standard data sheet.
(xvii) Filters were then sent to ALS Technichem (HK) Pty Ltd. for analysis.
(d)
Maintenance and
Calibration
(i)
The HVS and its accessories were maintained in good working condition, such as
replacing motor brushes routinely and checking electrical wiring to ensure a
continuous power supply.
(ii)
HVSs were calibrated using
TE-5025A Calibration Kit upon installation and thereafter at bi-monthly
intervals.
(iii)
Calibration certificate of the TE-5025A Calibration Kit and the HVSs are provided in Appendix E.
3.1.7 1-hour
TSP Monitoring
(a)
Measuring Procedures
The measuring procedures of the 1-hour dust meter are in accordance with
the Manufacturer’s Instruction Manual as follows:
(i)
Turn the power on.
(ii)
Close the air collecting opening cover.
(iii)
Push the “TIME SETTING” switch to [BG]
(iv)
Push “START/STOP”
switch to perform background measurement for 6 seconds.
(v)
Turn the knob at SENSI ADJ position to insert
the light scattering plate.
(vi)
Leave the equipment for 1 minute upon “SPAN
CHECK” is indicated in the display.
(vii)
Push “START/STOP” switch to perform automatic
sensitivity adjustment. This measurement takes 1 minute.
(viii)
Pull out the knob and return it to MEASURE
position.
(ix)
Push the “TIME SETTING” switch the time set
in the display to 3 hours.
(x)
Lower down the air collection opening cover.
(xi)
Push “START/STOP” switch to start
measurement.
(b)
Maintenance and Calibration
(i)
The 1-hour TSP meter was
calibrated at 1-year intervals against a continuous particulate TEOM Monitor,
Series 1400ab. Calibration certificates of the Laser Dust Monitors are provided in Appendix E.
Monitoring Schedule for the
Reporting Month
3.1.8 The schedule for environmental
monitoring in February 2022 is provided in Appendix F.
3.2 Construction Noise Monitoring
Monitoring Requirements
3.2.1 In
accordance with the EM&A Manual, impact
noise monitoring should be conducted for at
least once a week during the construction phase of the Project. Table 3.3 summarizes
the monitoring parameters, frequency and duration of
impact noise monitoring. The Action and Limit Levels of the noise monitoring is
provided in Appendix D.
Table 3.3 Noise Monitoring Parameters, Frequency and Duration
|
Parameter and Duration |
Frequency |
|
30-mins
measurement at each monitoring station between 0700 and 1900 on normal
weekdays. Leq, L10 and L90
would be recorded. |
At least once per week |
3.2.2 Noise monitoring was performed using sound level
meter at each designated monitoring station.
The sound level meters deployed comply with the International
Electrotechnical Commission Publications (IEC) 651:1979 (Type 1) and 804:1985
(Type 1) specifications. Acoustic
calibrator was deployed to check the sound level meters at a known sound
pressure level. Brand and model of the
equipment is given in Table 3.4.
Table 3.4 Noise Monitoring Equipment for Regular Noise Monitoring
|
B&K (Model No. 2250-L & 2270) |
|
|
Acoustic
Calibrator |
MVI (Model No. CAL21)
& B&K (Model No. 4231) |
Monitoring Locations
3.2.3
The
monitoring stations for construction noise monitoring pertinent to the Project have
been identified based on the approved EM&A Manual for the Project. Locations of the noise monitoring stations are
summarized in Table 3.5 and
shown in Figure 3.2.
Table 3.5 Noise Monitoring Stations during Construction Phase
|
Location |
Monitoring Station |
Description |
Measurement |
|
E-N12a [1] |
19 Hing Yan Street |
Rooftop (9/F) |
Façade |
|
E-N21a [1] |
Block B of Merit Industrial Centre |
Rooftop (13/F) |
Free field[2] |
Notes:
[1] The noise monitoring stations proposed in the EM&A Manual (i.e. Grand Waterfront Tower 3 with ID: E-N12 and Hang Chien Court Block J with ID: E-N21) were not available for
impact noise monitoring, therefore impact monitoring was conducted at E-N12a
and E-N21a as an alternative which was agreed by the ER, IEC and EPD.
[2] A correction of +3 dB(A)
was made to the free field measurements.
Monitoring Parameters, Frequency and Duration
3.2.4 Table 3.6 summarizes the monitoring parameters, frequency and duration of impact noise monitoring.
Table 3.6 Noise Monitoring Parameters, Frequency and Duration
|
Location |
Parameter and Duration |
Frequency |
|
E-N12a
and E-N21a |
30-mins measurement at each
monitoring station between 0700 and 1900 on normal weekdays. Leq, L10 and L90 would
be recorded. |
At
least once per week |
Monitoring Methodology
3.2.5 Monitoring
Procedure
(a)
The sound level meter was set on
a tripod at a height of 1.2 m above the ground.
(b)
Façade measurement was made at E-N12a.
(c)
Free field measurements was made at monitoring location E-N21a. A correction of +3 dB(A)
shall be made to the free field measurements.
(d)
The battery condition was checked to ensure the correct
functioning of the meter.
(e)
Parameters such as frequency
weighting, the time weighting and the measurement time were set as follows:
(i)
frequency weighting
(ii)
time weighting: Fast
(iii)
time measurement: Leq(30-minutes) during non-restricted
hours i.e. 0700 – 1900 on normal weekdays.
(f)
Prior to and after each noise
measurement, the meter was calibrated using the acoustic calibrator for 94
dB(A) at 1000 Hz. If the difference in
the calibration level before and after measurement was more than 1 dB(A), the
measurement would be considered invalid and repeat of noise measurement would
be required after re-calibration or repair of the equipment.
(g)
During the monitoring period, the
Leq, L10 and L90
were recorded. In addition, site
conditions and noise sources were recorded on a standard record sheet.
(h)
Noise measurement was paused
during periods of high intrusive noise (e.g. dog
barking, helicopter noise) if possible. Observations were recorded when
intrusive noise was unavoidable.
(i)
Noise monitoring was cancelled in
the presence of fog, rain, wind with a steady speed exceeding 5m/s, or wind
with gusts exceeding 10m/s.
3.2.6 Maintenance
and Calibration
(a)
The microphone
head of the sound level meter was cleaned with soft cloth at
regular intervals.
(b)
The meter and
calibrator were sent to the supplier or HOKLAS laboratory to check and
calibrate at yearly intervals.
(c)
Calibration
certificates of the sound level meters and acoustic
calibrators are provided in Appendix E.
Monitoring
Schedule for the Reporting Month
3.2.7
The
schedule for environmental monitoring in February 2022 is provided in Appendix
F.
3.3
Landscape and Visual
3.3.1 As per the EM&A Manuals, the landscape and visual mitigation
measures shall be implemented and site inspections
should be undertaken once every two weeks during the construction period. A
summary of the implementation status is presented in Section 6.
4
Implementation
Status of Environmental Mitigation Measures
4.1.1
The
Contractor has implemented environmental mitigation measures and requirements
as stated in the EIA Reports, the EP and EM&A Manuals. The implementation
status of the environmental mitigation measures during the reporting period is
summarized in Appendix C. Status of required submissions under the EP
during the reporting period is summarised in Table 4.1.
Table 4.1 Status of Required Submission under Environmental Permit
|
EP Condition |
Submission |
Submission
Date |
|
Condition 3.4 of |
Monthly EM&A Report for January 2022 |
14 February 2022 |
5
Monitoring
Results
5.1 Construction Dust Monitoring
5.1.1 The monitoring results for 24-hour TSP and 1-hour TSP are summarized in Table 5.1 and Table 5.2 respectively. Detailed air quality monitoring results and daily extract of meteorological observations are presented in Appendix G.
Table 5.1 Summary of 24-hour
TSP Monitoring Result in the Reporting Period
|
ID |
Average (mg/m3) |
Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
E-A14a |
25.7 |
7.9 – 49.6 |
197.3 |
260 |
Table 5.2 Summary of 1-hour TSP Monitoring Result in the Reporting Period
|
ID |
Average (mg/m3) |
Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
|
E-A14a |
58.0 |
52.4
– 61.4 |
302.4 |
500 |
5.1.2
No Action and Limit Level exceedance was recorded
for 24-hour TSP monitoring at the monitoring
location in the reporting month.
5.1.3 No Action and
Limit Level exceedance was recorded for 1-hour TSP monitoring at the monitoring location in the reporting month.
5.1.4 The event and action plan is annexed in Appendix I.
5.1.5
Major dust
sources during the monitoring included construction dust and nearby traffic
emission.
5.2 Regular Construction Noise Monitoring
5.2.1
The
monitoring results for noise are summarized in Table 5.3 and the monitoring data is provided in Appendix
H.
Table 5.3 Summary of Construction Noise Monitoring Results in the Reporting Period
|
ID |
Range, dB(A), Leq (30 mins) |
Limit Level, dB(A), Leq (30 mins) |
|
E-N12a |
68.1
– 74.4 |
75 |
|
E-N21a |
63.7
– 68.7 |
75 |
5.2.2
One (1)
noise-related complaint was received in the reporting month. Therefore, one
action level of construction noise was triggered.
5.2.3
No Limit
Level exceedance for noise was recorded at all monitoring stations in the
reporting month.
5.2.4 The event and action plan is annexed in Appendix I.
5.2.5 Major noise sources during the monitoring included construction noise from the Project site and nearby traffic noise.
5.3 Waste Management
5.3.1 C&D materials and wastes sorting were carried
out on site. Receptacles were available for C&D wastes and general refuse collection.
5.3.2
As advised by the
Contractor, total 5,488 m3 of inert C&D material were generated and 1,263 m3
disposed of as public fill, 4,225 m3 of inert C&D was
reused in the Contract and no other projects respectively in the reporting
month. 71,820 kg general refuse was generated and sent to NENT Landfill in the reporting month. No metal, plastics and paper/cardboard packaging were collected by
recycle contractor in the reporting month. No chemical waste
was collected by licensed contractor in the reporting month. No Type 1, Type 2 and Type 3
Marine sediment were disposed at Confined Marine Disposal Facility to the East
of Sha Chau. The waste flow table is annexed in Appendix K.
5.3.3 The Contractor is advised to properly maintain on
site C&D materials and wastes collection, sorting and recording system and
maximize reuse / recycle of C&D materials and wastes. The Contractor is
reminded to properly maintain the site tidiness and dispose of the wastes
accumulated on site regularly and properly.
5.3.4 The Contractor is reminded that chemical waste
containers should be properly treated and stored temporarily in designated
chemical waste storage area on site in accordance with the Code of Practise on the Packaging, Labelling and Storage of
Chemical Wastes.
5.4
Landscape and Visual
5.4.1 Bi-weekly inspection of the implementation of
landscape and visual mitigation measures was conducted on 9 and 23 February 2022.
A summary of the site
inspection is provided in Appendix C. The observations and recommendations made during the site inspections are
presented in Table 6.1.
6
ENVIRONMENTAL
SITE INSPECTION AND AUDIT
6.1.1 Site inspections were carried out on a
weekly basis to monitor the implementation of proper environmental pollution
control and mitigation measures for the Project. A summary of the mitigation
measures implementation schedule is provided in Appendix C.
6.1.2
In the reporting
month, 3 site inspections were carried out on 9, 16, and 23 February 2022. Joint
inspections with the IEC, ER, the Contractor and ET were conducted on 23 February 2022. No non-compliance was recorded during the site
inspection. Details of observations recorded during the site inspections are
presented in Table 6.1.
Table 6.1 Observations and Recommendations of Site Audit
|
Parameters |
Date |
Observations and Recommendations |
Follow-up |
|
Air Quality |
9 Feb 2022 |
· Proper NRMM label should
be displayed on the air compressor at Stage 2 Marine Platform. |
The item was rectified by
the Contractor on |
|
9 Feb 2022 |
Reminder · The Contractor was
reminded to provide regular watering for the haul road next to the sea wall. |
The item was rectified by
the Contractor on |
|
|
Noise |
Nil |
Nil |
Nil |
|
Water Quality |
23 Feb 2022 |
· The Contractor was
reminded to remove the floating grease inside the silt curtain at Stage 2
Marine Platform. |
The item was rectified by
the Contractor on |
|
16 Feb 2022 |
Reminder · The Contractor was
reminded to remove the floating grease inside the silt curtain at Stage 2
Marine Platform. |
The item was rectified by
the Contractor on |
|
|
Waste/ Chemical Management |
Nil |
Nil |
Nil |
|
Landscape & Visual |
Nil |
Nil |
Nil |
|
Permits/ Licenses |
9 Feb 2022 |
· The CNP was invalid at
MTK. The Contractor was reminded to display valid CNP at the site entrance of
MTK. |
The item was rectified by
the Contractor on |
6.1.3
All follow-up
actions requested by Contractor's ET during the site inspection were undertaken
as reported by the Contractor and confirmed in the
following weekly site inspection conducted during the reporting period.
6.1.4
No
follow-up action requested by Contractor ET’s during the site inspection on 16 February
2022 in the reporting month.
7 Environmental Non-conformance
7.1 Summary of Monitoring Exceedances
7.1.1 All 24-hour TSP result was below
the Action and Limit Levels at all monitoring locations in the reporting month.
7.1.2 All 1-hour TSP result was below the
Action and Limit Levels at all monitoring locations in the reporting month
7.1.3
One
(1) noise-related complaint was received in the reporting month. Therefore, one
action level of construction noise was triggered, and the investigation report
was finalized on 21 February 2022. Based on the investigation results from
finalized investigation report, it was concluded that the complaint was
no-project related.
7.1.4
No
Limit Level exceedance for noise was recorded at all monitoring stations in the
reporting month.
7.2 Summary of Environmental Non-Compliance
7.2.1 No environmental non-compliance was
recorded in the reporting month.
7.3 Summary of Environmental Complaints
7.3.1 One (1) environmental related
complaint was received in the reporting month as follows:
|
No. |
Date received |
Complaint No. |
Parameter |
Status |
|
1 |
6
February 2022 (Referred by Gammon Construction
Limited on 7 February 2022) |
EC-048-
K10/RE/00003196-22 |
Noise and Water |
Closed |
7.3.2 No notification of summons and
successful prosecution were received in the reporting month.
7.4 Summary of Environmental Summon and Successful Prosecutions
7.4.1
No
environmental related prosecution or notification of summons was received in
the reporting month. Cumulative statistics on notification of summons and
successful prosecutions is provided in Appendix J.
8
FUTURE KEY ISSUES
8.1 Construction Programme for the Next Three Months
8.1.1 The major construction works between March to May 2022 are provided in Table 8.1.
Table 8.1 Construction Activities in the coming three months
|
Locations |
Site Activities |
|
Kai
Tak |
-
Backfilling works and re-prop removal at underpass and C&C; |
|
Ma
Tau Kok |
-
TTM implementation; |
|
Kowloon
Bay |
-
Piling Works at Stage 2 UWT; |
|
|
|