1.
This
is the 11th Quarterly Environmental
Monitoring and Audit (EM&A) Report prepared by the Environmental Team (ET),
Cinotech Consultants Ltd., for “Trunk Road T2 and Infrastructure Works at the
Former South Apron”. This report summarized the monitoring results and audits
findings of the EM&A programme under the issued Environmental Permit (EP)
No. EP-458/2013/C and in accordance with the EM&A Manual (AEIAR-173/2013)
during the reporting period from November 2022 to January 2023.
2. The
construction activities undertaken in the reporting quarter were as follows:
November 2022
·
East Bound – RC Structure Construction,
Service Gallery Drill & Blast, Service Gallery A Installation
·
East Ventilation Building – WB
Blinding & Waterproofing and RC Structure
·
West Bound – Extension &
Blast Tunnel, RC Structure Construction
December 2022
·
East Bound – RC Structure Construction,
Service Gallery Drill & Blast, Pre-tunnel, Blast Door removal.
·
East Ventilation Building – WB
Blinding & Waterproofing and RC Structure.
·
West Bound – Extension &
Blast Tunnel, RC Structure Construction.
January 2023
·
East Bound – RC Structure
Construction, Service Gallery Drill & Blast, Pre-tunnel, Blast Door
removal.
·
East Ventilation Building – WB
Blinding & Waterproofing and RC Structure.
·
West Bound – Extension & Blast
Tunnel, RC Structure Construction.
3. Implementation of the key mitigation measures during the reporting period are as
follows:
Construction Noise
·
Construction activities were
scheduled to minimize noise nuisance to the nearby sensitive receiver.
·
Use of Quality Powered
Mechanical Equipment (QPME) on site.
·
Erected the noise barrier on
site.
Air Quality
·
Regularly watering on site to
avoid dust generation.
Landscape and Visual
·
Tree protection zones were
fenced off to protect the existing trees on site.
4.
Environmental
monitoring for the Project was performed in accordance with the EM&A Manual and the monitoring results were checked and reviewed. Site Inspections/Audits were conducted once per week. The implementation of the environmental
mitigation measures, Event Action Plans and environmental complaint handling
procedures were also checked.
5. Summary of the non-compliance in the reporting
quarter for the Project is tabulated in Table
I. Details of the environmental monitoring results is presented in Section 3.
Table I
Non-compliance (Exceedance) Record for the Project in the Reporting Quarter
|
Parameter
|
No. of Exceedance
|
No. of Exceedance due to Construction Activities of this Project
|
Action Taken
|
|
Action Level
|
Limit Level
|
Action Level
|
Limit Level
|
|
November
2022
|
|
Air
Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
0
|
0
|
0
|
0
|
N/A
|
|
Marine Water Quality
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Groundwater Level Monitoring (Piezometer
Monitoring)
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Ecological
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Cultural Heritage
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Landfill Gas
|
N/A
|
N/A
|
N/A
|
0
|
N/A
|
|
December
2022
|
|
Air
Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
0
|
0
|
0
|
0
|
N/A
|
|
Marine Water Quality
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Groundwater Level Monitoring (Piezometer
Monitoring)
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Ecological
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Cultural Heritage
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Landfill Gas
|
N/A
|
N/A
|
N/A
|
0
|
N/A
|
|
January
2023
|
|
Air Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
0
|
0
|
0
|
0
|
N/A
|
|
Marine Water Quality
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Groundwater Level Monitoring (Piezometer
Monitoring)
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Ecological
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Cultural Heritage
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
Landfill Gas
|
N/A
|
N/A
|
N/A
|
0
|
N/A
|
|
Note:
N/A - Not Applicable.
|
6.
Summary of key information in the reporting quarter is tabulated in Table II.
Table
II
Summary Table for Key Information in the Reporting Quarter
|
Event
|
Event Details
|
Action Taken
|
Status
|
|
Number
|
Nature
|
|
Complaints Received
|
0
|
---
|
N/A
|
N/A
|
|
Notifications of any summons
& prosecutions received
|
0
|
---
|
N/A
|
N/A
|
|
N/A – Not Applicable
|
7. Environmental
monitoring works for the Project are considered effective and is generating
data to categorically identify the environmental impacts from the works and influencing factors in the vicinity of monitoring stations.
8. No reporting change in the reporting quarter.
1.1
In 2009, Civil Engineering and
Development Department (CEDD) commissioned a Kai Tak Development (KTD) – Trunk
Road T2 and Infrastructure at South Apron Investigation. The assignment covers
the provision of the Trunk Road T2 and its connections with the Central Kowloon
Route (CKR) at the north apron area and the Tseung Kwan O – Lam Tin Tunnel
(TKOLTT) to the south in the Cha Kwo Ling area.
1.2
The Trunk Road T2 Project is one of the designated Projects under
Schedule 2 of the EIAO proposed in the KTD. CEDD submitted the Project Profile
(No. PP-379/2009) on 24 March 2009 for application for an EIA study brief for
the Trunk Road T2 Project under the EIAO. Accordingly, an EIA Study Brief
(ESB-203/2009) for the Trunk Road T2 Project was issued on 30 April 2009. The
Environmental Impact Assessment (EIA) Report for the Trunk Road T2 Project was approved under the Environmental Impact Assessment Ordinance (EIAO) on 19
September 2013. The corresponding Environmental Permit (EP) was issued on 19
September 2013 (EP no.: EP-451/2013).
1.3
The
Contract No. ED/2018/04 is the main contract
of Trunk Road T2 (“T2 Main Works”) which comprises mainly the design and
construction of a dual two-lane trunk road of approximately 3.0km long with
about 2.7km of the trunk road in form of tunnel; ventilation and administration
buildings, environmental protection and mitigation works and etc. The EM&A
programme under this Contract is governed by the two EPs (EP-451/2013 and EP-458/2013/C)
and two EM&A Manuals (AEIAR-174/2013 and AEIAR-173/2013). The work areas of
the T2 Main Works are shown in Figure 1
and the works to be executed under this Contract and corresponding EPs are
summarized as follows:
|
Environmental Permit
|
Works Description
|
|
EP-451/2013 – Trunk Road T2
|
Trunk Road T2
· Construction of highway and sub-sea tunnel
connecting between Central Kowloon Route and Cha Kwo Ling Tunnel
· Western & Eastern Ventilation Buildings
|
|
EP-458/2013/C – Tseung Kwan O – Lam Tin Tunnel (TKOLTT) and Associated
Works
|
Cha Kwo Ling Tunnel
Construction of Cha Kwo Ling Tunnel from the end of Trunk Road T2 to
the TKOLTT at the Eastern Ventilation Building
|
Monitoring
Works in Lam Tin under EP-458/2013/C
1.4
Under
Agreement No. CE 59/2015 (EP) – Tseung Kwan O – Lam Tin Tunnel (TKOLLT) and
Associated Works, the baseline monitoring works in Lam Tin under the EM&A
Manual (AEIAR-173/2013) were conducted by the Environmental Team (ET) for the Agreement No. CE
59/2015 (EP) at the approved monitoring locations, namely AM1, AM2, AM3, AM4,
AM4 (A) CM1, CM2, CM3, CM4 and CM5. Impact monitoring within the Lam Tin area
shall be conducted by the ET of Contract No. ED/2018/04 upon cessation of
Agreement No. CE 59/2015 (EP). The data obtained from the impact monitoring
works completed by the ET of Agreement No. CE 59/2015 (EP) will be adopted in
this report
1.5
Cinotech Consultants Ltd. was designated as
the Environmental Team (ET) to undertake the EM&A works for “Trunk Road T2
and Infrastructure Works for Developments at the Former South Apron”
(hereinafter called the “Project”).
1.6
This is the 11th Quarterly
EM&A Summary Report summarizing the EM&A works for the Project in
between November 2022 and January 2023.
1.7
Different parties with
different levels of involvement in the project organization include:
·
Permit Holder – Civil
Engineering and Development Department (CEDD)
·
Supervisor Representative –
Hyder-Meinhardt Joint Venture (HMJV)
·
Environmental Team (ET) –
Cinotech Consultants Limited (Cinotech)
·
Independent Environmental
Checker (IEC) – Ramboll Hong Kong Limited (Ramboll)
·
Contractor – Bouygues Travaux
Publics (BTP)
1.8
The key contacts of the Project
are shown in Table 1.1.
Table
1.1 Key Project
Contacts
|
Party
|
Role
|
Contact
Person
|
Phone No.
|
|
CEDD
|
Permit
Holder
|
Mr.
Wong Chi Wai, Tommy
|
3842
7111
|
|
HMJV
|
Supervisor
Representative
|
Ms.
Hazel Tang
|
2149
8524
|
|
Cinotech
|
Environmental
Team
|
Mr.
KS Lee (ETL)
|
2151
2091
|
|
Ms.
Karina Chan
|
2157
3880
|
|
Ramboll
|
Independent
Environmental Checker
|
Mr.
YH Hui
|
3465
2850
|
|
BTP
|
Contractor
|
Ms.
Ality Chan
|
5185
4462
|
1.9
The Organizational Structure for Environmental Management is shown in Figure 1.2.
1.10
The major site activities undertaken in the reporting quarter are shown as follow:
November 2022
·
East Bound – RC Structure
Construction, Service Gallery Drill & Blast, Service Gallery A Installation
·
East Ventilation Building – WB
Blinding & Waterproofing and RC Structure
·
West Bound – Extension &
Blast Tunnel, RC Structure Construction
December 2022
·
East Bound – RC Structure
Construction, Service Gallery Drill & Blast, Pre-tunnel, Blast Door
removal.
·
East Ventilation Building – WB
Blinding & Waterproofing and RC Structure.
·
West Bound – Extension &
Blast Tunnel, RC Structure Construction.
January 2023
·
East Bound – RC Structure
Construction, Service Gallery Drill & Blast, Pre-tunnel, Blast Door
removal.
·
East Ventilation Building – WB
Blinding & Waterproofing and RC Structure.
·
West Bound – Extension &
Blast Tunnel, RC Structure Construction.
2.
ENVIRONMENTAL MONITORING AND AUDIT REQUIREMENTS
2.1
The EM&A Manual designates locations for environmental monitoring in
terms of air quality, noise, and landfill gas due to the Project. The Project area
and monitoring locations are depicted in Figures
2. Appendix A gives details of
monitoring requirements.
2.2
Monitoring works/equipment were conducted/calibrated regularly in
accordance with the EM&A Manual. Copies of calibration certificates are
attached in the appendices of the corresponding Monthly EM&A Reports.
2.3
The environmental quality performance limits, i.e. Action and Limit
Levels were derived from the baseline monitoring results. Should the measured
environmental quality parameters exceed the Action/Limit Levels, the respective
action plans would be implemented. The
Action/Limit Levels for each environmental parameter are given in Appendix B.
2.4
Should the
monitoring results of the environmental monitoring parameters at any designated
monitoring stations indicate that the Action / Limit Levels are exceeded, the
actions in accordance with the Event and Action Plans in Appendix K was carried out.
2.5
Relevant mitigation measures as recommended in the project EIA report
have been stipulated in the EM&A Manual for implementation by the
Contractor. The implementation status of environmental
mitigation measures (EMIS) is given in Appendix
G.
2.6
During site inspections in the reporting period, no non-compliances was recorded.
The observations and recommendations made during the reporting period are
summarized in Appendix F.
2.7
The amount of wastes generated by the construction activities during the
reporting period is shown in Appendix H.
3.
MONITORING
RESULTS
3.1
The weather
during monitoring sessions was summarized in Table 3.1.
Table 3.1 Summary
of Weather Conditions in the
Reporting Period
|
Reporting Month
|
General Weather Conditions
|
|
November 2022
|
Sunny, Cloudy
|
|
December 2022
|
Sunny, Cloudy
|
|
January 2023
|
Sunny, Cloudy,
Rainy
|
3.2
The detail of weather conditions for
each individual monitoring session was presented in the corresponding monthly
EM&A report.
3.3
All 1-hour TSP monitoring was conducted as scheduled in the
reporting quarter. No Action/Limit Level exceedance was recorded in the
reporting quarter.
3.4
All 24-hour TSP monitoring was conducted as
scheduled in the reporting quarter. No Action/Limit Level
exceedance was recorded in the reporting quarter.
3.5
The graphical presentations of the air quality monitoring results
are shown in Appendix C.
3.6
All noise monitoring was conducted as scheduled in the reporting
month. No Action/Limit Level exceedance were recorded in this reporting
quarter. The graphical
presentations of the noise monitoring results are shown in Appendix D.
Groundwater Quality
3.7
The existing groundwater
quality monitoring programme has been suspended as the monitoring results had
been deemed non-representative of the impact from the project justified by two
major factors: (1) influence on the monitoring results from non-project related
factors, such as anthropogenic activities and natural phenomenon; and (2) large
separation between the monitoring stations and works area. In addition, as no
alternative locations for the groundwater quality monitoring were available,
the groundwater quality monitoring has been suspended since October 2019 upon
the agreement by EPD
Marine Water Quality
3.8
According to Section 4.4.3 of
EM&A Manual (AEIAR-173/2013), marine water quality
impact monitoring stations is carried out during marine construction for TKOLTT
reclamation. Since the construction of Cha Kwo Ling Tunnel from the end of Trunk
Road T2 to the TKOLTT at the Eastern Ventilation Building does not involve
reclamation, the marine water quality monitoring programme stated in Section
4.4 of the EM&A Manual (AEIAR-173/2013) is
therefore not applicable to Contract No. ED/2018/04.
Groundwater Level Monitoring (Piezometer Monitoring)
3.9
According to Section 4.1.2 of EM&A Manual (AEIAR-173/2013), daily piezometer monitoring will be carried out on
a daily basis when any tunnel construction activities are carried out within
+/- 50m of the piezometer gate in plan. As the construction works of Cha Kwo
Ling Tunnel from the end of Trunk Road T2 to the TKOLTT at the Eastern
Ventilation Building is approximately 120m away from the piezometer gate
in plan, the piezometer monitoring programme stated in
Section 4.2 of the EM&A Manual (AEIAR-173/2013) is
therefore not applicable to Contract No. ED/2018/04
3.10
Post-translocation monitoring survey is recommended
in Section 6.2.5 of the EM&A Manual (AEIAR-173/2013), to audit the success
of coral translocation. Since the construction of Cha Kwo Ling Tunnel from the
end of Trunk Road T2 to the TKOLTT at the Eastern Ventilation Building does not
involve any marine works in the concerned area mentioned in Section 6.1.2 of
the EM&A Manual (AEIAR-173/2013), the post-translocation monitoring survey
stated in Section 6.2.5 of the EM&A Manual (AEIAR-173/2013) is therefore
not applicable to Contract No. ED/2018/04.. .
3.11
As
the construction works of Cha Kwo Ling Tunnel from the end of Trunk Road T2 to
the TKOLTT at the Eastern Ventilation Building are located more than 100m away
from the Cha Kwo Ling Tin Hau temple, the vibration impact monitoring stated in
Section 8.3.1 of the EM&A Manual (AEIAR-173/2013) is not applicable to Contract
No. ED/2018/04.
3.12
The implementation of landscape and visual mitigation measures was
checked during the environmental site inspections. Recommended follow-up
actions have been discharged by the Contractor. Details of the audit findings
and implementation status are presented in Appendix
F.
3.13
Since no excavation activity for this Project was carried out within the
Sai Tso Wan Landfill Consultation Zone in this reporting quarter, therefore, no
landfill gas monitoring was required.
3.14
Site audits were carried out on a weekly basis to monitor and ensures
that proper storage, transportation and disposal practices of wastes generated
from this Project include inert construction and demolition (C&D)
materials, non-inert C&D materials. Details of waste management data is
presented in Appendix H.
3.15
According to Section 7.1.3 of EM&A Manual (AEIAR-173/2013), no
specific fisheries monitoring programme is required during the construction
phase.
3.16
During the reporting period, the major dust and noise source
identified at the designated monitoring stations are as follows:
Table
3.2 Major
Dust Sources during the Monitoring in the Reporting Period
|
Station
|
Major Dust Source
|
|
AM1 – Tin Hau Temple
|
Road Traffic at Cha
Kwo Ling Road
|
|
AM2 – Sai Tso Wan
Recreation Ground
|
Road Traffic along Sin
Fat Road
|
|
AM3 – Yau Lai Estate
Bik Lai House
|
Road Traffic near
Eastern Cross Harbour Tunnel Toll Plaza
|
|
AM4 - Sitting-out Area
at Cha Kwo Ling Village
|
Road Traffic at Cha
Kwo Ling Road
|
|
AM4(B) - Cha Kwo Ling
Public Cargo Working Area Administrative Office *
|
Road Traffic at Cha
Kwo Ling Road
|
*:
AM4(A) is not available for conducing monitoring due to the demolition of
administrative office, the relocation of monitoring station from AM4(A) to
AM4(B) has been approved by EPD on 11 July 2022.
Table
3.3 Major
Noise Sources during the Monitoring in the Reporting
Period
|
Monitoring Stations
|
Locations
|
Major Noise Source
|
|
CM1
|
Nga Lai House, Yau Lai Estate
Phase 1, Yau Tong
|
Road Traffic near Eastern
Cross Harbour Tunnel Toll Plaza
|
|
CM2
|
Bik Lai House, Yau Lai Estate
Phase 1, Yau Tong
|
Road
Traffic near Eastern Cross Harbour Tunnel Toll Plaza
|
|
CM3
|
Block S, Yau Lai Estate Phase 5,
Yau Tong
|
Road Traffic near Eastern
Cross Harbour Tunnel Toll Plaza
|
|
CM4
|
Tin Hau Temple, Cha Kwo Ling
|
Road Traffic at Cha Kwo Ling
Road
|
|
CM5
|
CCC Kei Faat Primary School, Yau
Tong
|
Road Traffic near Eastern
Cross Harbour Tunnel Toll Plaza
|
4.
NON-COMPLIANCE (EXCEEDANCES) OF THE ENVIRONMENTAL QUALITY
PERFORMANCE LIMITS (ACTION AND LIMIT LEVELS)
4.1
Environmental
monitoring works were performed in the reporting period and all monitoring
results were checked and reviewed. A
summary of exceedances is attached in Appendix
I.
Air Quality
4.2
No Action/Limit Level
exceedance was recorded in the reporting quarter.
Construction
Noise
4.3
No Action/Limit Level exceedance was recorded due to
the documented complaint in the reporting quarter.
Review of
the Reasons for and the Implications of Non-compliance
4.4
During site audits in the reporting quarter, no non-compliance was
recorded. Recommendations made in each individual site audit session were
attached in the Appendix F.
Landscape and Visual
4.5
No non-compliance of the landscape and
visual impact was recorded in the reporting quarter.
4.6
No environmental complaint, environmental warning,
prosecution and notification of summons on this Project was received in the reporting quarter.
The EM&A methodology has been effective in monitoring the
environmental impacts of the Project and the effectiveness of the mitigation
measures. The data collected were useful in determining whether the Project had
caused unacceptable impacts on the sensitive receivers. Analysis of all
EM&A data collected throughout the baseline and the impact periods
demonstrated the environmental acceptability of the Project
The mitigation measures recommended in the EIA report are
considered effective in minimizing environmental impacts.
The Contractor
has implemented the recommended mitigation measures except those mitigation
measures not applicable at this stage.
Environmental monitoring works were performed in the
reporting quarter and all monitoring results were checked and reviewed.
The summary record of non-compliance (exceedances) of Action/Limit Level for
environmental monitoring in the reporting
quarter has been presented in Table I
above and in Appendix I.
No environmental
complaint, environmental warning, prosecution and notification of summons on
this Project was received in the reporting quarter.The details were attached in
the Appendix J.
Joint weekly site
audits by the representatives of the Engineer, Contractor and the ET were
conducted in the reporting quarter. The following recommendations
was made to the Contractor for the coming reporting month:
Air
quality:
·
The valid NRMM labels should be displayed at a conspicuous
position on PME
Water quality:
·
The drainage system should be well maintenance and avoid
water ponding.
Waste / Chemical Management
·
Drip tray should be provided to prevent leaked oil
from entering drainage system during handling of chemical.
·
The C&D waste should be segregated and stored
in the separate containers or skip, the waste in the skips should be cleared
regularly, the site and surrounding should be kept tidy and litter free.
