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 |
|
|
|
|
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 66th
monthly EM&A Report presenting the EM&A works carried out during the
period between 1 and 30 September 2023. As informed by the Contractor, major
activities in the reporting period were:
|
Locations |
Site Activities |
|
Kai Tak |
- Road pavement at underpass,
depressed road and C&C; |
|
Ma Tau Kok |
- Temporary traffic management (TTM) implementation; |
|
Kowloon Bay |
- Road pavement at Stage 1 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 |
- Road Pavement at underpass,
depressed road and C&C; |
|
Ma Tau Kok |
- TTM implementation; |
|
Kowloon Bay |
- Road pavement at Stage 1 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 66th 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
2023.
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 |
-
Road pavement at underpass, depressed road and C&C; |
|
Ma
Tau Kok |
-
Temporary traffic management (TTM) implementation; |
|
Kowloon
Bay |
-
Road pavement at Stage 1 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 |
3922 9366 |
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 |
|
Construction Noise Permit |
||||
|
GW-RE0672-23 |
1 Jul 2023 |
30 Sep 2023 |
Valid |
General Works at Ma Tau Kok |
|
GW-RE0990-23 |
1 Sep 2023 |
30 Nov 2023 |
Valid |
General Works at Kai Tak |
|
GW-RE0516-23 |
19 May 2023 |
18 Nov 2023 |
Valid |
General Works at Stage 1 Underwater Tunnel |
|
GW-RE0835-23 |
27 Jul 2023 |
26 Nov 2023 |
Valid |
General Works 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 |
||||
|
EP/MD/23-106 |
10 Mar 2023 |
9 Sep 2023 |
Surrendered on 31 Aug 2023 |
Sediments of Category L -
Suitable for Capping Exhausted Contaminated Mud Pits |
|
EP/MD/24-018 |
1 Jul 2023 |
30 Sep 2023 |
Surrendered on 31 Aug 2023 |
Uncontaminated Natural
Excavated Materials for Capping - Routine Disposal (Alluvium) |
|
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 2023 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 |
Rion (Model No.
NC-74) & 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 September 2023 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
2023 |
14 September 2023 |
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 |
31.0 |
21.9 – 39.6 |
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 |
61.9 |
59.2
– 64.2 |
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 |
66.0 – 67.9 |
75 |
|
E-N21a |
59.6 – 60.1 |
75 |
5.2.2
No exceedance of Action and Limit level of
noise was recorded 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, no C&D material were generated
and no C&D material was disposed to public fill. No inert C&D was reused in the Contract
and no other projects respectively in the reporting month. 128,140 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 6
and 20 September 2023. 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 6, 13, 20 and 27 September 2023. Joint
inspections with the IEC, ER, the Contractor and ET were conducted on 20 September 2023. 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 |
13
September 2023 |
Observation: ·
The NRMM label was observed
missing on the generator at stage 2 marine platform. |
The
item was rectified by the Contractor on |
|
Noise |
27
September 2023 |
Observation: ·
Two generators
and a crawler crane were observed missing acoustic sheet at MTK site. |
The
item was rectified by the Contractor on |
|
Water Quality |
Nil |
Nil |
Nil |
|
Waste/ Chemical Management |
20
September 2023 |
Reminder: ·
Stagnant water was found
inside the drip tray at Kai Tak underpass. |
The
item was rectified by the Contractor on |
|
Reminder: ·
The contractor was reminded
to provide enough rubbin bin for disposing at stage 2 marine tunnel. |
The
item was rectified by the Contractor on |
||
|
27
September 2023 |
Reminder: ·
Stagnant water was found
inside the drip tray at Kai Tak underpass. |
The
item was rectified by the Contractor on |
|
|
Landscape & Visual |
Nil |
Nil |
Nil |
|
Permits/ Licenses |
Nil |
Nil |
Nil |
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
No
exceedance of Action and Limit level of noise was recorded 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
No environmental related complaints, notification of summons and
successful prosecution were received in the reporting month. 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 2023 to December 2023 are provided
in Table 8.1.
Table 8.1 Construction Activities in the coming three months
|
Locations |
Site Activities |
|
Kai
Tak |
- Road
Pavement at underpass, depressed road and C&C; |
|
Ma
Tau Kok |
-
TTM implementation; |
|
Kowloon
Bay |
-
Road pavement at Stage 1 UWT; |