1.
This
is the 5th 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
2021 to July 2021.
2. The
construction activities undertaken in the reporting quarter were as follows:
May 2021
• West Bound – Drill & Break Tunnel
• East Bound – Drill & Blast Tunnel
• WB East Ventilation Building Excavation
• CKL Junction Reinstatement works
June 2021
• West Bound – Drill & Break Tunnel
• East Bound – Drill & Blast Tunnel
• WB East Ventilation Building Excavation
• CKL Junction Reinstatement works
• East Bound – Enlargement Drill & Blast
July 2021
• West Bound – Drill & Break Tunnel
• West Bound – Service Gallery Drill and Blast
• East Ventilation Building Excavation
• CKL Junction Reinstatement works
• East Bound – Enlargement Drill & Blast
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 2021
|
|
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
|
0
|
N/A
|
0
|
N/A
|
|
June 2021
|
|
Air Quality
|
0
|
1
|
0
|
0
|
N/A
|
|
Noise
|
0
|
1
|
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
|
0
|
N/A
|
0
|
N/A
|
|
July 2021
|
|
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
|
0
|
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
|
1
|
Noise
|
Details refer to App J
|
Closed
|
|
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 5th
Quarterly EM&A Summary Report summarizing the EM&A works for the
Project in between May 2021 and July 2021.
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
|
Mr.
Joe Nam
|
3742
3820
|
|
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 (From 16 July 2021)
|
5185
4462
|
|
Mr.
Bryan Lee (Until 15 July 2021)
|
5588
3891
|
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 2021
• West Bound – Drill & Break Tunnel
• East Bound – Drill & Blast Tunnel
• WB East Ventilation Building Excavation
• CKL Junction Reinstatement works
June 2021
• West Bound – Drill & Break Tunnel
• East Bound – Drill & Blast Tunnel
• WB East Ventilation Building Excavation
• CKL Junction Reinstatement works
• East Bound – Enlargement Drill & Blast
July 2021
• West Bound – Drill & Break Tunnel
•
West Bound – Service Gallery
Drill and Blast
•
East Ventilation Building
Excavation
•
CKL Junction Reinstatement
works
•
East Bound – Enlargement Drill
& Blast
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
2021
|
Sunny, Cloudy
|
|
June
2021
|
Sunny, Cloudy
|
|
July
2021
|
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.
3.4
As the Tin Hau Temple was
closed for their renovation works and no electricity supply can be provided for
the HVS at AM1 on 25 May 2021, the 24 hour TSP monitoring at AM1 on 25 May 2021
was suspended. Other than the aforesaid monitoring, all 24-hour TSP monitoring
was conducted as scheduled in the reporting quarter. No Action Level but one
(1) Limit Level exceedance was 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. One (1) Limit Level exceedance for day time was 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
Monitoring of landfill gases was commenced in March 2016 and were
carried out by the Contractors of Agreement No. CE
59/2015 (EP) in the reporting quarter. Since no excavation activity for this
Project was carried out within the Sai Tso Wan Landfill Consultation Zone after
22 May 2021, no landfill gas monitoring is required after that. No Limit Level
exceedance was recorded. The graphical presentations of the
landfill gas monitoring results are shown in Appendix
E.
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 Level but one (1) Limit Level exceedance was 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. One (1) Limit Level exceedance was recorded for day time
construction noise in the reporting quarter.
Landfill Gas
4.4
No
Limit Level exceedance was recorded 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
One
(1) 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
One (1) 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:
Construction Noise
• All flaps and panels of the air
compressor shall be closed when they are operating.
Waste/ Chemical
Management
•
Drip tray shall be provided to
contain any potential leakage of fuel/ oil, and prevent leaked oil accidentally
drain into drainage system through the surface runoff on site.
