·
This
is the 13th 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 2023 to July 2023.
·
The construction activities undertaken in the reporting
quarter were as follows:
May 2023
·
East Bound – RC Structure Construction, Service Gallery Drill &
Blast, Civil work preparation for TBM pilot, Pilot Tunnel Assembly, Pilot
Tunnel Excavation.
· East Ventilation Building – WB
Blinding & Waterproofing, RC Structure
· West Bound – RC Structure
Construction.
June 2023
· East Bound – RC Structure
Construction, Pilot Tunnel Excavation.
· East Ventilation Building – WB
Blinding & Waterproofing, RC Structure.
· West Bound – RC Structure
Construction.
July 2023
· East Bound – RC Structure
Construction, Pilot Tunnel Excavation.
· East Ventilation Building – WB Blinding
& Waterproofing, RC Structure.
· West Bound –RC Structure
Construction.
·
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.
·
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.
·
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
2023
|
|
Air
Quality
|
2
|
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
|
|
June
2023
|
|
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
|
|
July
2023
|
|
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.
|
·
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
|
·
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.
·
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 13th Quarterly EM&A Summary Report
summarizing the EM&A works for the Project in between May 2023 and July 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.
Roy Leung
|
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:
May 2023
· East Bound – RC Structure
Construction, Service Gallery Drill & Blast, Civil work preparation for TBM
pilot, Pilot Tunnel Assembly, Pilot Tunnel Excavation.
· East Ventilation Building – WB
Blinding & Waterproofing, RC Structure
· West Bound – RC Structure
Construction.
June 2023
· East Bound – RC Structure
Construction, Pilot Tunnel Excavation.
· East Ventilation Building – WB
Blinding & Waterproofing, RC Structure.
·
West
Bound – RC Structure Construction.
July 2023
· East Bound – RC Structure
Construction, Pilot Tunnel Excavation.
· East Ventilation Building – WB
Blinding & Waterproofing, RC Structure.
· West Bound –RC Structure
Construction.
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 2023
|
Sunny, Cloudy, Fine
|
|
June 2023
|
Sunny, Cloudy, Fine, Rainy
|
|
July 2023
|
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. Two (2) Action Level exceedance was
recorded in the reporting quarter. No 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
Two (2) Action Level exceedance was recorded in
the reporting quarter. No 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 valid NRMM
label should be displayed on the machinery.
Noise:
·
The valid
QPME label should be displayed on the machinery.
Water quality:
·
Regular clean the stagnant
water on the drip tray after raining to avoid water ponding
·
The stagnant water in the
tray should be removed regularly, make sure the drainage system should be well
maintenance and avoid water ponding.
Waste / Chemical Management
·
Drip tray should be provided for the chemical
containers to avoid 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.
·
Make sure the chemical label
on the chemical containers is valid, it should be replaced when it is
damaged.
