1.
This is
the 6th 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
August 2021 to October 2021.
2.
The construction activities undertaken in the reporting
quarter were as follows:
August 2021
•
West bound – Drill & Blast
Tunnel, Service Gallery Drill & Blast, Service Gallery A Installation
•
East bound – type C Bench Drill
& Blast, Drill & Break Tunnel
•
East bound Enlargement Drill
& Blast
•
CKL Junction Reinstatement
works
•
East Ventilation Building
excavation
September 2021
•
West bound – Drill & Blast Tunnel,
Service Gallery Drill & Blast,
•
East bound – type C Bench Drill
& Blast, Drill & Break Tunnel
•
East bound Enlargement Drill
& Blast
•
CKL Junction Reinstatement
works
•
East Ventilation Building
excavation
October 2021
•
West bound – Drill & Blast
Tunnel, Service Gallery Drill & Blast, Service Gallery A Installation
•
West bound – RC Structure
Construction , Blast Door installation
•
East bound – type C Bench Drill
& Blast, Drill & Break Tunnel, Service Gallery Drill & Blast
•
East bound Enlargement Drill
& Blast
•
CKL Junction Reinstatement
works
•
Branch Tunnel – Drill &
Blast
•
East Ventilation Building
excavation
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
|
|
August 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
|
|
September 2021
|
|
Air Quality
|
1
|
1
|
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
|
|
October 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
|
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 6th
Quarterly EM&A Summary Report summarizing the EM&A works for the
Project in between August 2021 and October 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
|
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:
August 2021
•
West bound – Drill & Blast
Tunnel, Service Gallery Drill & Blast, Service Gallery A Installation
•
East bound – type C Bench Drill
& Blast, Drill & Break Tunnel
•
East bound Enlargement Drill
& Blast
•
CKL Junction Reinstatement
works
•
East Ventilation Building
excavation
September 2021
•
West bound – Drill & Blast
Tunnel, Service Gallery Drill & Blast,
•
East bound – type C Bench Drill
& Blast, Drill & Break Tunnel
•
East bound Enlargement Drill
& Blast
•
CKL Junction Reinstatement
works
•
East Ventilation Building
excavation
October 2021
•
West bound – Drill & Blast
Tunnel, Service Gallery Drill & Blast, Service Gallery A Installation
•
West bound – RC Structure
Construction , Blast Door installation
•
East bound – type C Bench Drill
& Blast, Drill & Break Tunnel, Service Gallery Drill & Blast
•
East bound Enlargement Drill
& Blast
•
CKL Junction Reinstatement
works
•
Branch Tunnel – Drill &
Blast
•
East Ventilation Building
excavation
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
|
|
August 2021
|
Sunny, Cloudy, Rainy
|
|
September 2021
|
Sunny, Cloudy, Rainy
|
|
October 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
All 24-hour TSP monitoring was conducted as
scheduled in the reporting quarter. One (1) Action Level and 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. No 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
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
One
(1) Action Level and one (1) 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. No 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
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:
Construction Noise
•
Noise mitigation measures, such
as erection of noise barrier to block the direct view of noise source from NSR,
shall always implemented on site to minimize noise nuisance generated from
construction activities.
Air Quality
•
Regular watering on active
works areas, exposed areas and paved haul roads to minimize dust generation
•
NRMM labels shall be displayed
at the conspicuous position of regulated machines
