Table of Contents
Page
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 |
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 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 78th monthly
EM&A Report presenting the EM&A works carried out during the period
between 1 and 30 September 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
One (1) action level exceedance was recorded
regarding to complaint on noise nuisance received in the reporting month. No
limit level exceedance was recorded at all monitoring stations in the reporting
month.
Complaint, Notification of Summons and Successful Prosecution
Two (2) complaints
were received in the reporting month (September 2024). The complaint were
investigated and have been provided in this reporting month (September 2024).
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; |
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 78th
monthly EM&A Report which summaries the impact monitoring results
and audit findings for the Project during the reporting period between 1 and 30 September 2024.
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 |
- 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; |
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. 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 |
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 |
||||
|
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-RE0618-24 |
1 Jun 2024 |
30 Nov 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 |
20 Oct 2024 |
Valid |
General Works at Promenade |
|
GW-RE0585-24 |
19 May 2024 |
18 Nov 2024 |
Valid |
General Works at Stage 1 Underwater Tunnel |
|
GW-RE0627-24 |
7 Jun 2024 |
6 Dec 2024 |
Valid |
General Works at Stage 2 Underwater Tunnel |
|
GW-RE0324-24 GW-RE1149-24 |
1 Apr 2024 19 Sep 2024 |
30 Sep 2024 18 Mar 2025 |
Superseded Valid |
Kai Tak Access 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 |
||||
|
-- |
-- |
-- |
-- |
-- |
|
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 |
-- |
|
|
||||
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 High Volume Samplers. 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
September 2024 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, 2250L & 2270) |
|
|
Acoustic
Calibrator |
B&K (Model
No. 4231) Rion(Model No.
NC-74) MVI(Model No.
CAL21) |
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 September 2024 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 August 2024 |
13 September
2024 |
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 |
24.3 |
11.2 - 41.4 |
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 |
60.8 |
58.1 – 63.5 |
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 are 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 |
63.6
– 66.8 |
75 |
|
E-N21a |
58.1
– 58.8 |
75 |
5.2.2
One (1)
action level exceedance was recorded regarding to complaint on noise nuisance
received in the reporting month. No limit level exceedance was recorded at all
monitoring stations in the reporting month.
5.2.3
The event
and action plan are annexed in Appendix I.
5.2.4 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, 28,447 m3 of C&D material
were generated and
no C&D material was disposed to public fill. 28,447 m3 of inert C&D were reused in the
contract in the reporting month. 75,810 kg of general refuse was generated and sent to NENT Landfill in the reporting month. No metal, no plastics and no 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 Practice 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 4 and
18 September 2024. 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, 4 site inspections were carried out on 4, 11, 19 and 25 September
2024. Joint
inspections with the IEC, ER, the Contractor and ET were conducted on 25 September 2024. 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 |
4
September 2024 |
Reminder: The
Contractor was reminded to provide a NRMM label on the vibratory roller at
Promenade. |
The
item was rectified by the Contractor on |
|
Noise |
Nil |
Nil |
Nil |
|
Water
Quality |
4
September 2024 |
Reminder: The
Contractor was reminded to provide better tarpaulin sheet placement between
the derrick lighter and the stage 2 marine platform. |
The
item was rectified by the Contractor on |
|
19
September 2024 |
Observation: Poor
condition of the tarpaulin sheet between Stage 2 marine platform and Derrick
lighter was observed at Stage 2 marine platform during the operation. The
Contractor should ensure the tarpaulin sheet is in a good conditon to prevent
consctuion material from accidentally drop into the sea. |
The
item was rectified by the Contractor on |
|
|
25 September
2024 |
Observation: The silt
curtain was observed damaged at Stage 2 marine platform. The Contractor was
advised to repair the silt curtain to prevent any pullution leakage. |
The
item was rectified by the Contractor on |
|
|
Waste/
Chemical Management |
11
September 2024 |
Reminder: The
Contractor was reminded to remove the mud and stagnant water inside the drip
tray at stage 2 marine platform. |
The
item was rectified by the Contractor on |
|
25
September 2024 |
Observation: Chemical
containers and oil stain was observed floating on the sea inside the silt
curtain at Stage 2 underwater tunnel. The Contractor was advised to remove
the chemical containers and oil stain to keep clean and prevent marine pollution
inside the silt curtain. |
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.
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.
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)
action level exceedance was recorded regarding to complaints on noise nuisance
received in the reporting month. No limit level exceedance 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
Two (2) complaints were received in the reporting month (September 2024) and the
investigation were conducted in the current reporting month (September 2024). Cumulative statistics on environmental complaint is provided in Appendix
J.
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 October
2024 to December 2024 are provided in Table 8.1.
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; |