1.
This
is the 12th 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 February 2023 to April
2023.
2. The
construction activities undertaken in the reporting quarter were as follows:
February 2023
·
East Bound – RC Structure
Construction, Service Gallery Drill & Blast. Pre-tunnel.
·
East Ventilation Building – WB
Blinding & Waterproofing.
·
West Bound – Extension &
Blast Tunnel, RC Structure Construction.
March 2023
· East Bound – RC Structure Construction, Service Gallery Drill &
Blast, Pre-tunnel, Civil work preparation for TBM pilot.
· East Ventilation Building – WB Blinding & Waterproofing, RC
Structure.
· West Bound – Extension & Blast Tunnel, RC Structure
Construction, Pre-tunnel.
April 2023
· East Bound – RC Structure Construction, Service Gallery Drill &
Blast, Pre-tunnel, Civil work preparation for TBM pilot.
· East Ventilation Building – WB Blinding & Waterproofing, RC
Structure.
· West Bound –RC Structure Construction, Pre-tunnel.
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
|
|
February
2023
|
|
Air
Quality
|
1
|
0
|
0
|
0
|
Detail refer to App I.
|
|
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
|
|
March
2023
|
|
Air
Quality
|
2
|
3
|
0
|
0
|
Detail refer to App I.
|
|
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
|
|
April
2023
|
|
Air Quality
|
1
|
1
|
0
|
0
|
Detail refer to App I.
|
|
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 12th Quarterly EM&A Summary Report summarizing the
EM&A works for the Project in between February 2023 and April 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
|
Mr.
Marcus Cheung
|
6628 2685
|
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:
February 2023
· East Bound – RC Structure Construction, Service Gallery Drill &
Blast. Pre-tunnel.
· East Ventilation Building – WB Blinding & Waterproofing.
· West Bound – Extension & Blast Tunnel, RC Structure
Construction.
March 2023
· East Bound – RC Structure Construction, Service Gallery Drill &
Blast, Pre-tunnel, Civil work preparation for TBM pilot.
· East Ventilation Building – WB Blinding & Waterproofing, RC
Structure.
· West Bound – Extension & Blast Tunnel, RC Structure
Construction, Pre-tunnel.
April 2023
· East Bound – RC Structure Construction, Service Gallery Drill &
Blast, Pre-tunnel, Civil work preparation for TBM pilot.
· East Ventilation Building – WB Blinding & Waterproofing, RC
Structure.
· West Bound –RC Structure Construction, Pre-tunnel.
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
|
|
February 2023
|
Sunny, Cloudy, Fine
|
|
March 2023
|
Sunny, Cloudy, Fine
|
|
April 2023
|
Sunny, Cloudy,
Fine, 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.
3.4
All 24-hour TSP monitoring was conducted as
scheduled in the reporting quarter. Four (4) Action Level exceedance was
recorded in the reporting quarter. Four (4) 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 Level exceedance were recorded in this reporting quarter and
no 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
Four (4) Action Level exceedance was recorded in
the reporting quarter. Four (4) Limit Level exceedance was recorded in the
reporting quarter
Construction
Noise
4.3
No Action Level exceedance was recorded due to the documented complaint
in the reporting quarter.
No Limit Level
exceedance for construction noise monitoring was recorded 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 on this
Project was received in the reporting quarter.
4.7
No environmental warning, prosecution and notification of summons were
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 was received in the
reporting quarter. The details were attached in the Appendix J.
No warning,
notification of summon and environmental prosecution 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 stockpile of dusty material
should be removed or covered when not in used.
·
The valid NRMM labels should be
displayed at a conspicuous position on PME
·
The dusty material (i.e cement bag) should be covered with impervious sheet
when not in used.
Water
quality:
·
The drainage system should be well maintenance and avoid water ponding.
Waste / Chemical Management
·
Regular
maintenance and check the machinery to prevent the leakage of oil.
·
Drip Tray should be provided
for chemical containers to prevent chemical leakage.
·
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.
· Chemical waste should be cleaned regularly and avoid
accumulation.
