1.
This is
the 4th 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 2021 to April 2021.
2.
The construction activities undertaken in the reporting
quarter were as follows:
February 2021
·
West Bound – Drill & Break
Tunnel
·
East Bound – Drill & Blast
Tunnel
March 2021
·
West Bound – Drill & Break
Tunnel
·
East Bound – Drill & Blast
Tunnel
April 2021
·
West Bound – Drill & Break
Tunnel
·
East Bound – Drill & Blast
Tunnel
·
WB 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
|
|
February 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
|
|
March 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
|
|
April 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:
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
|
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
|
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 4th
Quarterly EM&A Summary Report summarizing the EM&A works for the
Project in between February 2021 and April 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
(from 12 April 2021)
|
3465 2850
|
|
Mr. Manson
Yeung (until 11 April 2021)
|
3465 2888
|
|
BTP
|
Contractor
|
Mr. Bryan
Lee
|
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:
February 2021
·
West Bound – Drill & Break
Tunnel
·
East Bound – Drill & Blast
Tunnel
March 2021
·
West Bound – Drill & Break
Tunnel
·
East Bound – Drill & Blast
Tunnel
April 2021
·
West Bound – Drill & Break
Tunnel
·
East Bound – Drill & Blast
Tunnel
·
WB 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
|
|
February 2021
|
Sunny, Cloudy
|
|
March 2021
|
Sunny, Cloudy, Rainy
|
|
April 2021
|
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
The HVS at monitoring station AM2 was broken-down
during the first week of February 2021 and the 24-hour TSP monitoring at such
station was temporary suspended during the aforementioned period. Other than
the aforesaid monitoring, all 24-hour TSP monitoring was conducted as scheduled
in the reporting quarter. No Action / 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
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. 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.
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 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
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
·
Noise
mitigation measures, i.e. erecting noise barriers, shall always be implemented
on site to minimize construction noise generated from construction activities.
Waste/ Chemical
Management
·
A reputable waste collector
should be employed by the contractor to remove general refuse from the site,
separately from C&D material.
