Table of Contents
Page
........... EXECUTIVE SUMMARY
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 |
|
|
|
|
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 audit 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 74th monthly
EM&A Report presenting the EM&A works carried out during the period
between 1 and 31 May 2024. As informed by the Contractor, major activities in
the reporting period were:
|
Locations |
Site Activities |
|
Kai Tak |
- Defect rectification works at
underpass, depressed road and C&C |
|
Ma Tau Kok |
- Temporary traffic management (TTM) implementation; |
|
Kowloon Bay |
- Removal of Excavation and
Lateral Support (ELS) at 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
No exceedance of Action
and Limit level of noise was recorded in the reporting month.
Complaint, Notification of Summons and Successful Prosecution
No environmental related complaints, 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 |
- Defect rectification works at
underpass, depressed road and C&C |
|
Ma Tau Kok |
- TTM implementation; |
|
Kowloon Bay |
- Removal of Excavation and
Lateral Support (ELS) at 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 |
-
Defect rectification works at underpass, depressed road and C&C |
|
Ma Tau Kok |
-
Temporary traffic management (TTM) implementation; |
|
Kowloon Bay |
-
Removal of Excavation and Lateral Support (ELS) at 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. Patrick Lo |
36195901 |
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.
W. Fung |
3856 5681 |
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 |
||||
|
WT00043692-2023 |
1 Apr 2023 |
31 Mar 2028 |
Valid |
Ma Tau Kok |
|
WT00043881-2023 |
30 Jun 2023 |
30 Jun 2028 |
Valid |
Underwater Tunnel Stage 2 |
|
WT00044013-2023 |
1 May 2023 |
30 Apr 2028 |
Valid |
Kai Tak and Underwater Tunnel Stage 1 |
|
Construction Noise Permit |
||||
|
GW-RE0276-24 |
24 Mar 2024 |
26 Sep 2024 |
Valid |
General Works at Ma Tau Kok |
|
GW-RE0369-24 |
1
Apr 2024 |
30 Sep 2024 |
Valid |
General Works at Kai Tak |
|
GW-RE0449-24 |
21
Apr 2024 |
30 Sep 2024 |
Valid |
General Works at Promenade |
|
GW-RE1393-23 |
19 Nov 2023 |
18 May 2024 |
Expired |
General Works at Stage 1 Underwater Tunnel |
|
GW-RE0585-24 |
19 May 2024 |
18 Nov 2024 |
Valid |
|
|
GW-RE0458-24 |
27 Apr 2024 |
26 Oct 2024 |
Valid |
General Works at Stage 2 Underwater Tunnel |
|
GW-RE0324-24 |
1 Apr 2024 |
30 Sep 2024 |
Valid |
Kai Tak Access Road |
|
GW-RE0359-24 |
29 Mar 2024 |
28 Sep 2024 |
Valid |
CNP for Road Paving at Gate 2A, Kai Tak |
|
|
|
|
|
|
|
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 |
-- |
|
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 High Volume Samplers. 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, 2250L & 2270) |
|
|
Acoustic
Calibrator |
B&K (Model
No. 4231) Rion(Model No.
NC-74) MVI(Model No.
CAL21) |
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 April 2024 |
14 May 2024 |
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 |
46.8 |
28.3 - 70.4 |
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 |
59.6 |
58.1 – 61.6 |
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 |
63.2 – 65.0 |
75 |
|
E-N21a |
58.3 – 58.7 |
75 |
Table 6.1 Observations
and Recommendations of Site Audit
|
Parameters |
Date |
Observations
and Recommendations |
Follow-up |
|
Air
Quality |
Nil |
Nil |
Nil |
|
Noise |
14
May 2024 |
Reminder: The Contractor was reminded to warp with acoustic
mat to the breaker head at KT Promenade area. |
The
item was rectified by the Contractor on |
|
Water
Quality |
Nil |
Nil |
Nil |
|
Waste/
Chemical Management |
14
May 2024 |
Reminder: The
Contractor was reminded to clean the stagnant water in drip tray regularly at
marine platform stage 2. |
The
item was rectified by the Contractor on |
|
22
May 2024 |
Reminder: The
contractor was reminded to provide a container for the general refuse at UWT
Stage 2. |
The
item was rectified by the Contractor on |
|
|
Landscape &
Visual |
Nil |
Nil |
Nil |
|
Permits/ Licenses |
Nil |
Nil |
Nil |
*The
item was under rectification on last reporting month.
Table 8.1 Construction Activities in the coming three months
|
Locations |
Site Activities |
|
Kai Tak |
-
Defect rectification works at underpass, depressed road and C&C |
|
Ma Tau Kok |
-
TTM implementation; |
|
Kowloon Bay |
-
Removal of Excavation and Lateral Support (ELS) at Stage 2 UWT; |