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 January 2021 |
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 thirty-seventh
monthly EM&A Report presenting the EM&A works carried out during the
period between 1 and 30 April 2021. As informed by the Contractor, major activities
in the reporting period were:
Locations |
Site Activities |
Kai Tak |
·
Casting tunnel wall at underpass and ventilation adit; ·
Wall and roof slab construction at cut & cover,
underpass and depressed road; ·
Backfilling at Underpass and depressed road; ·
Removal of ELS at cut & cover, underpass and depressed
road. |
Ma Tau Kok |
·
TTM implementation; ·
Trial trench for piling works; ·
Pre-grouting works for pipe piling works for MTK C&C
Tunnel; ·
Pipe piling works for MTK C&C tunnel; ·
Demolition of Kowloon City Public Pier. |
Kowloon Bay |
·
Concrete packing between wailing and CPP Wall at Stage 1
UWT; ·
Roof slab construction at Stage 1 UWT; ·
Waterproofing application at Stage 1 UWT; ·
Backfilling and ELS Removal at Stage 1 UWT; ·
Pipe Piling works for Stage 2 UWT. |
|
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
Regular Noise Monitoring
One (1) noise-related complaint was received
in the reporting month. Based on the investigation result from finalized
investigation report, no construction works were conducted by the Contractor on
25 April 2021 during restricted hours, so the related noise nuisance was
considered not related to the project. Therefore, one action level of
construction noise was triggered, and the investigation report was finalized on
4 May 2021.
Complaint, Notification of Summons and Successful Prosecution
One (1) complaint in noise (received by Environmental
Protection Department on 26 April 2021) was referred by the Contractor on 30 April
2021. The investigation report was finalized on 4 May 2021.
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 |
·
Wall and roof slab construction at cut & cover,
underpass and depressed road; ·
Backfilling works and ELS removal at cut & cover,
underpass and depressed road; ·
Dismantle of working platform. |
Ma Tau Kok |
·
TTM implementation; ·
Pre-grouting works for pipe piling works of MTK C&C
Tunnel; ·
Pipe piling works for cut and cover tunnel; ·
Temporary storm drain diversion works; ·
Demolition of Kowloon City Public Pier. |
Kowloon Bay |
·
Backfilling and ELS removal works at Stage 1 UWT; ·
Waterproofing application at Stage 1 UWT; ·
Seawall Reinstatement at Stage 1 UWT; ·
Pipe piling and other preparation works for Stage 2 UWT. |
·
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
(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.
Table 2.1 Construction Activities in the reporting month
Locations |
Site Activities |
Kai
Tak |
·
Casting tunnel wall at underpass and ventilation adit; ·
Wall and roof slab construction at cut & cover,
underpass and depressed road; ·
Backfilling at Underpass and depressed road; ·
Removal of ELS at cut & cover, underpass and depressed
road. |
Ma Tau
Kok |
·
TTM implementation; ·
Trial trench for piling works; ·
Pre-grouting works for pipe piling works for MTK C&C
Tunnel; ·
Pipe piling works for MTK C&C tunnel; ·
Demolition of Kowloon City Public Pier. |
Kowloon
Bay |
·
Concrete packing between wailing and CPP Wall at Stage 1
UWT; ·
Roof slab construction at Stage 1 UWT; ·
Waterproofing application at Stage 1 UWT; ·
Backfilling and ELS Removal at Stage 1 UWT; ·
Pipe Piling works for Stage 2 UWT. |
|
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 3313 |
2723 5660 |
Gammon |
Contractor |
Contracts Manager |
Mr. Alan Yan |
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 |
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 |
WT00030333-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Barging Point at
Portions 4B & 4C |
WT00030330-2018 |
27 Apr 2018 |
30 Apr 2023 |
Valid |
Kowloon Bay |
Construction Noise Permit |
||||
GW-RE0074-21 |
4 Feb 2021 |
3 May 2021 |
Valid |
General Works at Ma Tau Kok |
GW-RE0012-21 |
20 Jan 2021 |
10 Jul 2021 |
Valid |
General Works at Kai Tak |
GW-RE0989-20 |
25 Nov 2020 |
20 May 2021 |
Valid |
ELS Removal at Stage 1 UWT |
GW-RE0259-21 |
1 Apr 2021 |
30 Sep 2021 |
Valid on 1 Apr
2021 |
Kai Tak Haul Road |
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 |
||||
EP/MD/21-038 |
8 Oct 2020 |
7 Apr 2021 |
Valid until 7 Apr 2021 |
Sediments requiring Type 1
- Open Sea Disposal |
Billing Account for Construction
Waste Disposal |
||||
7029909 |
22 Jan 2018 |
End of Project |
Account Active |
-- |
7031949 |
27 Feb 2021 |
26 May 2021 |
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 |
-- |
|
Monitoring Requirements
Monitoring Equipment
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
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
(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.
(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
Monitoring Requirements
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 |
Table 3.4 Noise Monitoring Equipment for Regular Noise Monitoring
B&K (Model No. 2250 & 2238) |
|
Acoustic
Calibrator |
Rion (Model No.
NC-74) & B&K (Model No. 4231) |
Monitoring Locations
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
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
(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.
(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
Table 4.1 Status of Required Submission under Environmental Permit
EP Condition |
Submission |
Submission
Date |
Condition 3.4 of |
Monthly EM&A Report for
March 2021 |
14 April 2021 |
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 |
56.4 |
29.5 – 81.0 |
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 |
55.3 |
50.2
– 68.0 |
302.4 |
500 |
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 |
61.3
– 66.7 |
75 |
E-N21a |
63.1
– 68.4 |
75 |
Table 6.1 Observations and Recommendations of Site Audit
Parameters |
Date |
Observations and Recommendations |
Follow-up |
Air Quality |
21 April 2021 |
· Haul road at the Marine Platform was observed to be dry.
The Contractor should provide adequate water spraying on the haul road for
dust suppression. |
The item was rectified by the Contractor
on 26 April 2021. |
28 April 2021 |
· NRMM label was not observed on the generator at the vessel
near Ma Tau Kok. The Contractor should affix proper
NRMM label on the generator. |
The item was rectified by the Contractor
on 30 April 2021. |
|
Noise |
28 April 2021 |
Reminder: · The Contractor was reminded to replace damaged noise
barrier around the air compressor at Ma Tau Kok. |
The item was rectified by the Contractor
on 30 April 2021. |
Water Quality |
Nil |
Nil |
Nil |
Waste/ Chemical Management |
7 April 2021 |
· General refuse was observed at access from marine platform
to the roof of UWT stage 1. The Contractor should remove it and dispose to
the designated storage area. |
The item was rectified by the Contractor
on 13 April 2021. |
14 April 2021 |
· General refuse was observed stored without proper handling
at UWT Stage 1 in Kai Tak. The Contractor should provide proper handling for
general refuse storage. |
The item was rectified by the Contractor
on 19 April 2021. |
|
21 April 2021 |
· Chemical containers were observed stored without drip tray
at Marine Platform. The Contractor should provide
proper handling for chemical storage to prevent accidental spillage. |
The item was rectified by the Contractor
on 27 April 2021. |
|
Landscape & Visual |
Nil |
Nil |
Nil |
Permits/ Licenses |
Nil |
Nil |
Nil |
Table 8.1 Construction Activities in the coming three months
Locations |
Site Activities |
Kai
Tak |
·
Wall and roof slab construction at cut & cover,
underpass and depressed road; ·
Backfilling works and ELS removal at cut & cover,
underpass and depressed road; ·
Dismantle of working platform. |
Ma
Tau Kok |
·
TTM implementation; ·
Pre-grouting works for pipe piling works of MTK C&C
Tunnel; ·
Pipe piling works for cut and cover tunnel; ·
Temporary storm drain diversion works; ·
Demolition of Kowloon City Public Pier. |
Kowloon
Bay |
·
Backfilling and ELS removal works at Stage 1 UWT; ·
Waterproofing application at Stage 1 UWT; ·
Seawall Reinstatement at Stage 1 UWT; ·
Pipe piling and other preparation works for Stage 2 UWT. |