1.
This
is the 9th 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 May
2022 to July 2022.
2. The
construction activities undertaken in the reporting quarter were as follows:
May 2022
East Ventilation Building -
Excavation
Drill & Blast Tunnel - CP33
blasts
West bound Kicker concreting
East bound Service Gallery
Installation, Tunnel Excavation
Logistic Steel Deck
June 2022
Tunnel Segment delivery
West Bound Drill & Blast
Tunnel
West Bound RC Structure
Construction
CP 33 - Excavation
East Bound RC Structure
Construction
East Bound Service Gallery
Drill & Blast
East Bound Service Gallery A Installation
East Ventilation Building WB
Blinding & Waterproofing
East Ventilation Building EB
Excavation
July 2022
East Bound Type A Bench
East Bound Type A Top Heading
East Ventilation Building
Basement Excavation
West Bound Drill & Blast
Tunnel, Blasting
Drill & Blast Tunnel -
Civil Works, Kicker concreting
Service Gallery Installation
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
|
|
May 2022
|
|
Air Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
0
|
1
|
0
|
0
|
Detail refer to App I.
|
|
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
|
|
June 2022
|
|
Air Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
0
|
1
|
0
|
0
|
Detail refer to App I.
|
|
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
|
|
July 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
|
|
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.
The 24 TSP Monitoring at AM4(A)
is suspended and under application for relocation in June 2022. Once the
proposal for relocation is approved, the monitoring at AM4(A) will at conducted
at AM4(B). For the time being, as the station CKL2 for the 24 hr TSP monitoring, carried out under EM&A works for
Trunk Road T2 Project (EP- 451/2013), is located in close proximity to AM4(A);
the results from CKL2 are adopted as reference for the 24 TSP monitoring at
AM4(A), which has similar environment when compared with that for CKL2. Figure 2 shown the location of CKL2.
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 9th
Quarterly EM&A Summary Report summarizing the EM&A works for the
Project in between May 2022 and July 2022
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:
May 2022
East Ventilation Building -
Excavation
Drill & Blast Tunnel - CP33
blasts
West bound Kicker concreting
East bound Service Gallery
Installation, Tunnel Excavation
Logistic Steel Deck
June 2022
Tunnel Segment delivery
West Bound Drill & Blast
Tunnel
West Bound RC Structure
Construction
CP 33 - Excavation
East Bound RC Structure
Construction
East Bound Service Gallery
Drill & Blast
East Bound Service Gallery A
Installation
East Ventilation Building WB
Blinding & Waterproofing
East Ventilation Building EB
Excavation
July 2022
East Bound Type A Bench
East Bound Type A Top Heading
East Ventilation Building
Basement Excavation
West Bound Drill & Blast
Tunnel, Blasting
Drill & Blast Tunnel -
Civil Works, Kicker concreting
Service Gallery Installation
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
|
|
May
2022
|
Sunny, Cloudy, Rainy
|
|
June
2022
|
Sunny, Cloudy
|
|
July
2022
|
Sunny, Cloudy
|
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. No Action/Limit Level exceedance were
recorded.
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 was recorded due to the documented complaints received in this
reporting quarter. Two (2) Limit Level exceedance for day time were recorded in
the 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(A) - Cha Kwo
Ling Public Cargo Working Area Administrative Office
|
Road Traffic at Cha Kwo Ling Road
|
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
|
4.1
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 were recorded in the reporting quarter.
Construction Noise
4.3
No Action Level exceedances was recorded due to the documented
complaints received in the reporting quarter. Two (2) Limit Level exceedance were recorded for day time
construction noise in the reporting quarter.
Review of the Reasons for and the Implications of Non-compliance
4.10
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
4.11
No non-compliance of the landscape and visual
impact was recorded in the reporting quarter.
4.12
No
environmental complaint on this Project was
received in the reporting quarter.
4.13
No environmental warning, prosecution and notification of summons were
received in the reporting quarter.
5.1
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
5.2
The
mitigation measures recommended in the EIA report are considered effective in
minimizing environmental impacts.
5.3
The Contractor has implemented the
recommended mitigation measures except those mitigation measures not applicable
at this stage.
5.4
Environmental
monitoring works were performed in the reporting quarter and all monitoring
results were checked and reviewed.
5.5
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.
5.6
No environmental complaint was received in the reporting quarter. The details were attached in the Appendix J.
5.7
No warning, notification of summon and environmental prosecution was
received in the reporting quarter. The details were attached in the Appendix J.
5.8
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:
Water Quality
Pounding
water should be avoided.
Waste Management
Contractor is suggested to prepare
an emergency spill kit as to clean up spills of oil /chemical.
Designated area for chemical
storage should be provided for proper storage of chemical /oil.
Chemical waste producer license
should be displayed properly.
Drip tray should be provided to
prevent leaked chemical/ oil from entering drainage system directly without any
treatment processes.
