1. This is the 10th 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 2022 to October 2022.
2.
The construction activities undertaken in the reporting
quarter were as follows:
August 2022
·
East Bound – Type A Bench
·
East Ventilation Building Basement
Excavation & Base Slab Construction
·
West Bound – Drill & Blast Tunnel, Blasting
·
Drill & Blast Tunnel - Civil Works,
Kicker concreting
·
Service Gallery Installation
September 2022
·
East Bound – RC Structure Construction, Service Gallery
Drill & Blast, Service Gallery A Installation.
·
East Ventilation Building – WB Blinding & Waterproofing, EB
Excavation and RC Structure.
·
West Bound – Extension & Blast Tunnel, RC Structure
Construction.
October 2022
·
East Bound – RC Structure Construction, Service Gallery
Drill & Blast, Service Gallery A Installation.
·
East Ventilation Building – WB Blinding & Waterproofing, EB
Excavation and RC Structure.
·
West Bound – Extension & Blast Tunnel, RC Structure
Construction.
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 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
|
|
September 2022
|
|
Air Quality
|
1
|
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
|
|
October 2022
|
|
Air Quality
|
0
|
0
|
0
|
0
|
N/A
|
|
Noise
|
2
|
0
|
0
|
0
|
Detail refer to
App J.
|
|
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
|
2
|
Noise
|
Detail 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 10th Quarterly EM&A
Summary Report summarizing the EM&A works for the Project in between August
2022 and October 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:
August
2022
·
East Bound – Type A Bench
·
East Ventilation Building Basement Excavation
& Base Slab Construction
·
West Bound – Drill & Blast Tunnel,
Blasting
·
Drill & Blast Tunnel - Civil Works, Kicker
concreting
·
Service Gallery Installation
September
2022
·
East Bound – RC Structure Construction,
Service Gallery Drill & Blast, Service Gallery A Installation.
·
East Ventilation Building – WB Blinding &
Waterproofing, EB Excavation and RC Structure.
·
West Bound – Extension & Blast Tunnel,
RC Structure Construction.
October
2022
·
East Bound – RC Structure Construction,
Service Gallery Drill & Blast, Service Gallery A Installation.
·
East Ventilation Building – WB Blinding &
Waterproofing, EB Excavation and RC Structure.
·
West Bound – Extension & Blast Tunnel,
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
|
|
August 2022
|
Sunny, Cloudy,
Rainy
|
|
September 2022
|
Sunny, Cloudy,
Rainy
|
|
October 2022
|
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
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. Two (2) 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
|
4.1
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
exceedance was recorded in the reporting quarter. No Limit Level exceedance was
recorded in the reporting quarter
Construction Noise
4.3
Two (2) 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
4.10
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
Two
(2) 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.
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.
Two (2) 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 labels
should be displayed at a conspicuous position on PME
Waste
/ Chemical Management
·
The general refuse should be stored in the enclosed
bin and removed regularly.
·
Drip tray should be provided to prevent leaked oil
from entering drainage system during handling of chemical.
·
Waste, such as oil, should be handled and stored
well to ensure secure containment, thus minimizing the potential of pollution.
