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Contract No: Hy/2019/18 Wanchai
Development Phase II and Central Wanchai Bypass Sampling, Field
Measurement and Testing Works (Stage 4) Environmental
Permit no. EP-356/2009, Further Evironmental permit nos. Fep-04/356/2009
AND FEP-07/356/2009 Monthly Environmental Monitoring & Audit Report
- MAY 2021
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CLIENTS: |
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Civil Engineering and
Development Department and Highways Department |
Lam Geotechnics Limited Telephone:
(852) 2882-3939 Facsimile:
(852) 2882-3331 E-mail:
info@lamenviro.com Website:
http://www.lamenviro.com |
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Certified
by: |
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Raymond
Dai Environmental
Team Leader |
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DATE: |
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09 June 2021 |
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2.2 Scope
of the Project and Site Description
2.3 Division
of the Project Responsibility
2.4 Project
Organization and Contact Personnel
3 Status of
Regulatory Compliance
3.1 Status
of Environmental Licensing and Permitting under the Project
5.3 Water
quality monitoring Results
6.1 Review of the Reasons for and the
Implications of Non-compliance.
6.2 Summary
of action taken in the event of and follow-up on non-compliance
7. Cumulative Construction Impact due
to the Concurrent Projects
9. Complaints,
Notification of Summons and Prosecution
lIST OF TABLES
Table I Summary
of Water Quality Monitoring Exceedances in Reporting Month
Table
II Summary of Enhanced Dissolved Oxygen Monitoring Exceedances in
Reporting Month
Table
2.1 Schedule
2 Designated Projects under this Project
Table
2.2 Details
of Individual Contracts under the Project
Table
2.3 Contact
Details of Key Personnel
Table
3.6 Cumulative
Summary of Valid Licences and Permits under Contract no. HY/2009/15
Table
3.7 Summary
of submission status under FEP-04/356/2009 Condition
Table
3.11 Cumulative Summary of Valid
Licences and Permits under Contract no. HY/2010/08
Table
3.12 Summary of submission status under
EP-356/2009 and FEP-07/356/2009 Condition
Table
4.1 Noise
Monitoring Station
Table 4.2 Air Monitoring Station
Table 4.3 Marine Water Quality
Stations for Water Quality Monitoring
Table 4.4 Marine Water Quality
Monitoring Frequency and Parameters
Table 4.5 Marine Water Quality
Stations for Enhanced Water Quality Monitoring
Table
5.2 Noise
Monitoring Station for Contract no. HY/2009/15
Table 5.4 Noise Monitoring Station for Contract no.
HY/2010/08
Table
5.7 Air
Monitoring Station for Contract no. HY/2009/15
Table 5.10 Air
Monitoring Stations for Contract no. HY/2010/08
Table 5.15 Water quality monitoring Station for Contract
no. HY/2010/08
Table 5.16 Enhance Dissolved Oxygen Monitoring Stations for Contract no.
HY/2010/08
Table
5.19 Details
of Waste Disposal for Contract no. HY/2009/15
Table 5.22 Details of Waste
Disposal for Contract no. HY/2010/08
Table
9.1 Cumulative
Statistics on Complaints
Table
9.2 Cumulative
Statistics on Successful Prosecutions
Table
10.1 Construction
Activities and Recommended Mitigation Measures in Coming Reporting Month
lIST OF FIGUREs
Figure 2.2 Project Organization Chart
Figure 4.1 Locations of Environmental Monitoring Stations
lIST OF APPENDIces
Appendix 3.1 Environmental Mitigation Implementation Schedule
Appendix 4.1 Action and Limit Level
Appendix 6.1 Event Action Plans
EXECUTIVE SUMMARY
i.
This
is the Environmental Monitoring and Audit (EM&A) Monthly Report
– May
2021 for the Project of Wan Chai Development Phase II and Central-Wanchai Bypass
under Environmental Permit no. EP-356/2009 and Further Environmental permit
nos. FEP-04/356/2009 and FEP-07/356/2009. This
report presents the environmental monitoring findings and information recorded
during the period of 27 April 2021 to 26 May 2021. The cut-off date of reporting is at 26th
of each reporting month.
ii.
In
the reporting month, the principal work activities of individual contracts
conducted are as follow:
Contract no. HY/2009/15- Wan Chai
Bypass Tunnel (Causeway Bay Typhoon Shelter Section)
Nil
Contract no. HY/2010/08- Wan Chai
Bypass Tunnel (Slip Road 8)
Nil
Noise Monitoring
iii.
With respect to the shift in major construction site portions at Wan
Chai North, the noise monitoring station M1a – Harbour Sports Centre was finely
adjusted from East of Harbour Road Sports Centre to West of Harbour Road Sports
Centre on 21 June 2016.
iv.
With
respect to the demolition of Ex-Harbour Road Sports Centre, the respective
noise monitoring station M1a – Harbour Road Sports Centre were finely adjusted
on 16 and 25 May 2017 and thereafter to the Footbridge for Harbour Road Sports
for noise monitoring.
v.
As confirmed by CWB RSS, the marine construction works under Contract
HY/2010/08 and relevant reporting have been completed by 21 September 2018, the
noise monitoring station namely M2b – Noon day gun area and M3a - Tung Lo Wan
Fire Station association with Contract HY/2010/08 and relevant reporting has
been ceased in the reporting month.
vi.
As confirmed by WDII RSS, the marine construction works under HK/2012/08
and relevant reporting have been completed by 2 January 2019, the noise
monitoring station namely M1a - Footbridge for Ex-Harbour Road Sports Centre
association with Contract HK/2012/08 and relevant reporting has been ceased in
the reporting month.
vii.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2009/15 at EX-PCWA area on 26 June 2019 and the relevant
noise monitoring station monitoring station namely M2b – Noon day gun area and
M3a - Tung Lo Wan Fire Station would be associated with Contract HY/2009/15 in
the reporting month.
viii.
As confirmed by CWB RSS, the marine construction works under Contract HY/2009/19
and relevant reporting have been completed, the monitoring association with
Contract HY/2009/19 namely M4b – Victoria Centre, M5b – City Garden and M6 –HK Baptist
Church Henrietta Secondary School and relevant reporting has been ceased in the reporting month.
ix.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2010/08 at CBTS area on 7 August 2019 and the relevant noise
monitoring station monitoring station namely M2b – Noon day gun area and M3a -
Tung Lo Wan Fire Station would be associated with Contract HY/2010/08 in the
reporting month.
x.
Referring to WDII RSS confirmation on the completion of marine works
under HK/2009/02 within the EP-356 area on 30 September 2019, the relevant
noise monitoring station namely M1a – Footbridge for Ex-Harbour Road Sports
Centre would not be associated with Contract HK/2009/02 in the reporting month.
xi.
As confirmed by CWB RSS that marine works under HY/2010/08 and
HY/2009/15 under EP-356/2009 was completed on 22 March 2021, noise monitoring stations M2b –
Noon-day gun area and M3a – Tung Lo Wan Fire Station under EP-356/2009 were
suspended from 22 March 2021.
Air Quality Monitoring
xii.
With respect to the proposed demolition of the Oil Street Site Office,
the respective air quality monitoring station CMA1b – Oil Street Site Office
was finely adjusted from the Oil Street Site Office to Harbour Grand Hotel
Boundary Wall from 05 June 2017 onwards.
xiii.
With
respect to the proposed demolition of eastern podium of Oil Street Site Office,
the respective air quality monitoring station CMA1b – Oil Street Site Office
was finely adjusted from East podium of the Oil Street Site Office to the West
podium of the Oil Street Site Office on 21 December 2016.
xiv.
As confirmed by CWB RSS, the marine construction works under Contract
HY/2010/08 and relevant reporting have been completed by 21 September 2018, the
air monitoring stations namely CMA3a - CWB PRE Site Office association with
Contract HY/2010/08 and relevant reporting has been ceased in the reporting
month.
xv.
As confirmed by WDII RSS, the marine construction works under HK/2012/08
and relevant reporting have been completed by 2 January 2019, the air
monitoring stations namely CMA5b - Pedestrian Plaza, CMA6a – WDII PRE Office
association with Contract HK/2012/08 and relevant reporting has been ceased in
the reporting month.
xvi.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2009/15 at EX-PCWA area on 26 June 2019 and the relevant air
monitoring station monitoring station namely CMA3a – CWB PRE Site Office would
be associated with Contract HY/2009/15 in the reporting month.
xvii.
As confirmed by CWB RSS, the marine construction works under Contract
HY/2009/19 and relevant reporting have been completed, the monitoring
association with Contract HY/2009/19 namely CMA1b – Harbour Grand Hotel Boundary
Wall and CMA2a Causeway Bay Community Centre and relevant reporting has been ceased
in June 2019 reporting month.
xviii.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2010/08 at CBTS area on 7 August 2019 and the relevant air
monitoring station monitoring station namely CMA3a – CWB PRE Site Office would
be associated with Contract HY/2010/08 in the reporting month.
xix.
Referring
to WDII RSS confirmation on the completion of marine works under HK/2009/02
within the EP-356 area on 30 September 2019, the relevant air quality
monitoring stations namely CMA3a – CWB PRE Site Office and CMA4a - SPCA would
not be associated with Contract HK/2009/02 in the reporting month.
xx.
As confirmed by CWB RSS that marine works under HY/2010/08 and
HY/2009/15 under EP-356/2009 was completed on 22 March 2021, air quality
monitoring stations CMA3a – CWB PRE Site Office under EP-356/2009 was suspended
from 22 March 2021.
Water Quality Monitoring
xxi.
With respect to the reinstatement of the silt screen system for Cooling
Water Intakes P7, P8, P9 and WSD Water Intake RW21, the respective water
quality monitoring was reverted to the previous monitoring location for Water
Quality Monitoring Station RW21-P789 from water quality stations RW21-P789 East
(RW21-P789E) and RW21-P789 West (RW21-P789W) from 25 January 2017 onwards.
xxii.
With
respect to the removal of silt screen at WQM station RW21-P789 on 26 November
2016, the respective water quality monitoring at RW21-P789 was adjusted to
RW21-P789E and RW21-P789W since 28 November 2016 ebb-tide.
xxiii.
With
respect to the temporarily suspension of marine construction works at WCR3 Area
by Contract HK/2009/02, the installed silt screen for intake group (P7, P8, P9
and WSD21) was removed on 26 November 2016.
xxiv.
As
advised by the Contractor of HK/2009/01, all silt screen remains removal works
at P1, P3, P4, P5 and C1 water quality monitoring stations were completed on 8
May 2016.
xxv.
With respect to the marine works undertaken at WCR3 by Contract HK/2009/02,
the respective water quality monitoring station C1 associated with Contract
HK/2009/01 was updated as in association with Contract HK/2009/01 and Contract
HK/2009/02.
xxvi.
With respect to the marine works undertaken at CBTS by Contract
HY/2010/08, the respective water quality monitoring station C7 associated with
Contract HY/2009/15 was updated as in association with Contract HY/2009/15 and
Contract HY/2010/08.
xxvii.
With respect to the marine works undertaken at HKCEC2 by Contract HK/2012/08,
the respective water quality monitoring station WSD19, P1, P3, P4, and P5 were
associated with Contract HK/2012/08.
xxviii.
As confirmed by WDII RSS, the marine construction works under Contract
HK/2009/01 have been completed since 24 July 2017, the monitoring association
with Contract HK/2009/01 and relevant reporting has been ceased in the
reporting month.
xxix.
Enhanced DO monitoring at Windsor House Cooling (Station Ref: C7) was
temporarily suspended since
22 October 2014 with respect to the formation of temporary reclamation zone TS3
xxx.
Referring to CWB RSS confirmation on the completion of marine
construction activities within the Ex-PCWA
area and the completion of the post construction water quality monitoring, the respective Enhance DO Monitoring within Ex-PCWA for
monitoring station Ex-PCWA SE and Ex-PCWA SW was
temporarily suspended since 07 March 2017 ebb tide onwards.
xxxi.
Water quality monitoring station C7 and Enhance DO monitoring station C6
shall be associated with
Contract HY/2010/08, upon confirmation of marine construction works completion under Contract HY/2009/15 at CBTS area
and Ex-PCWA area since 19 June 2017.
xxxii.
Enhanced DO monitoring at Windsor House Cooling (Station Ref: C7) was
resumed from 1 February 2018 onwards with respect to the completion of removal
of temporary reclamation zone.
xxxiii.
Referring to CWB RSS confirmation on the completion of removal of
temporary reclamation within the TS3 area
and the completion of the post construction water quality monitoring, the
respective Enhance DO Monitoring within TS3 for monitoring station C6 and C7
was temporarily suspended since 05 March 2018 onwards.
xxxiv.
Referring to CWB RSS confirmation on the completion of marine works
within the TS3 area
and the completion of the post construction water quality monitoring, the respective
water quality monitoring within TS3 for monitoring station C7 was temporarily
suspended since 29 October 2018 onwards.
xxxv.
Referring to WDII RSS confirmation on the completion of marine works
under HK/2012/08 within the EP-356 area
on 2 January 2019 and the completion of the post construction water quality
monitoring (From 2 January 2019 to 30 January 2019), the respective water
quality monitoring stations P1, P3, P4, P5 and WSD19 within EP-356 area was temporarily
suspended since 15 February 2019 onwards.
xxxvi.
Referring to CWB RSS confirmation on the resumption of marine works
within the CBTS area
the respective water quality monitoring within CBTS for monitoring station C7
was resumed since 7 August 2019 and associated with Contract HY/2009/15 and
HY/2010/08.
xxxvii.
Referring
to WDII RSS confirmation on the completion of marine works under HK/2009/02
within the EP-356 area on 30 September 2019 and the completion of the post
construction water quality monitoring (From 30 September 2019 to 26 October 2019),
the respective water quality monitoring stations C1 and RW21-P789 within EP-356
area was temporarily suspended from 26 October 2019 onwards.
xxxviii.
Referring
to CWB RSS confirmation, there was no marine works under EP-356/2009 until
mid-September 2020. The respective water quality monitoring station C7 within
EP-356 area was temporarily suspended from 15 May 2020 onwards.
xxxix.
Referring
to CWB RSS confirmation on the resumption of marine works within the CBTS area
the respective water quality monitoring within CBTS for monitoring station C7
was resumed since 16 September 2020.
xl.
As confirmed by CWB RSS that marine works under HY/2010/08 and
HY/2009/15 under EP-356/2009 was completed on 22 March 2021, 4 week post-construction water quality monitoring at C7 was commenced
on 22 March 2021 and ended on 19 April 2021.
xli.
The water quality monitoring at Station C7 has been temporarily
suspended since 20 April 2021 after the 4-week post-construction water quality
monitoring as agreed with IEC.
Complaints, Notifications of Summons and Successful
Prosecutions
xlii.
No environmental complaint, summons and prosecution were received in the
reporting period.
Site Inspections and Audit
Future Key Issues
xliv.
In
coming reporting month, the principal work activities of individual contracts
are anticipated as follows:
Contract no. HY/2009/15- Wan Chai
Bypass Tunnel (Causeway Bay Typhoon Shelter Section)
Nil
Contract no. HY/2010/08- Wan Chai Bypass Tunnel (Slip Road 8 Section)
Nil
1.1.1.
Lam Geotechnics Limited (LGL) has been appointed to work as the
Environmental Team (ET) under Environmental Permit no. EP-356/2009 and Further
Environmental permit nos. FEP-04/356/2009 and FEP-07/356/2009 to implement the
Environmental Monitoring and Audit (EM&A) programme as stipulated in the
EM&A Manual of the approved Environmental Impact Assessment (EIA) Report
for Wan Chai Development phase II and Central-Wan Chai Bypass (Register No.:
AEIAR-125/2008) and in the EM&A Manual of the approved EIA Report for
Central-Wan Chai Bypass and Island Eastern Corridor Link (Register No. AEIAR-041/2001).
1.1.2.
This report presents the environmental monitoring and auditing work
carried out in accordance to the Section 10.3 of EM&A Manual and “Environmental
Monitoring and Audit Requirements” under Particular Specification Section
27.
1.1.3.
This report documents the finding of EM&A works for Environmental
Permit no. EP-356/2009, Further Environmental Permit no. FEP-04/356/2009 and FEP-07/356/2009
during the period of 27 April 2021 to 26 May 2021. The cut-off date of reporting is at 26th of each reporting
month.
Section 1 Introduction – details the scope and structure of the report.
Section 2 Project
Background – summarizes background and
scope of the project, site description, project organization and contact
details of key personnel during the reporting period.
Section 3 Status of Regulatory Compliance – summarizes the status of valid Environmental Permits /
Licenses during the reporting period.
Section 4 Monitoring
Requirements – summarizes all monitoring
parameters, monitoring methodology and equipment, monitoring locations,
monitoring frequency, criteria and respective event and action plan and
monitoring programmes.
Section 5 Monitoring
Results – summarizes the monitoring
results obtained in the reporting period.
Section 6 Compliance Audit – summarizes
the auditing of monitoring results, all exceedances environmental
parameters.
Section 7 Cumulative Construction Impact due
to the Concurrent Projects – summarizes the relevant cumulative
construction impact due to the concurrent activities of the concurrent Projects.
Section 8 Environmental Site Audit – summarizes the findings of weekly site inspections
undertaken within the reporting period, with a review of any relevant follow-up actions within the reporting period.
Section 9 Complaints,
Notification of summons and Prosecution – summarizes the cumulative statistics on complaints, notification of summons and
prosecution
Section 10 Conclusion
2.1.1.
“Wan Chai Development phase II and Central-Wan Chai Bypass” and
“Central-Wan Chai Bypass and Island Eastern Corridor Link” (hereafter called
“the Project”) are Designed Project (DP) under the Environmental Impact
Assessment Ordinance (Cap. 499) (EIAO). The Environmental Impact Assessment
(EIA) Reports for Central-Wan Chai Bypass and Island Eastern Corridor Link
(Register No. AEIAR-041/2001) and Wan Chai Development phase II and Central-Wan
Chai Bypass (Register No.: AEIAR-125/2008) have been approved on 31 August 2001
and 11 December 2008 respectively.
2.1.2.
The key purpose of Wan Chai Development Phase II (WDII) is to provide
land at Wan Chai North and North Point for construction of the Central-Wan Chai
Bypass and Island Eastern Corridor Link (CWB). Land formed under the project
will be developed as a world-class waterfront promenade joining that at the new
Central waterfront for public enjoyment.
2.1.3.
There is a compelling and present need for the CWB to provide relief to
the very congested east-west Connaught Road Central/Harcourt Road / Gloucester
Road Corridor (the Corridor) which is currently operating beyond its capacity.
The CWB will provide relief to the existing congestion along the Corridor and
cater for the anticipated growth of traffic on Hong Kong Island. Without the
CWB and its access roads, there will not be sufficient capacity to serve the
heavy traffic demands at both strategic and local levels.
2.2.1.
The Project is located mainly in Wan Chai North, Causeway Bay and North
Point, and is demarcated by Gloucester Road and Victoria Park Road to the
south, Fenwick Pier Street to the west and Tong Shui Road Interchange to the
east, as shown in Figure 2.1.
2.2.2.
The study area encompasses existing developments along the Wan Chai,
Causeway Bay and North Point shorelines. Major land uses include the Hong Kong
Convention & Exhibition Centre (HKCEC) Extension, the Wan Chai Ferry Pier,
the ex-Wan Chai Public Cargo Working Area (ex-PCWA), the Royal Hong Kong Yacht
Club (RHKYC), the Police Officers’ Club, the Causeway Bay Typhoon Shelter
(CBTS) and commercial and residential developments.
2.2.3.
The scope of the Project
comprises:
·
Land
formation for key transport infrastructure and facilities, including the Trunk
Road (i.e.
CWB) and the associated slip roads for connection to the Trunk Road and for through
traffic from Central to Wan Chai and Causeway Bay. The land formed for the above
transport infrastructure will provide opportunities for the development of an
attractive waterfront promenade for the enjoyment of the public
·
Reprovisioning
/ protection of the existing facilities and structures affected by the land
formation works mentioned above
·
Extension,
modification, reprovisioning or protection of existing storm water drainage
outfalls, sewerage outfalls and watermains affected by the revised land use and
land formation works mentioned above
·
Upgrading
of hinterland storm water drainage system and sewerage system, which would be
rendered insufficient by the land formation works mentioned above
·
Provision
of the ground level roads, flyovers, footbridges, necessary transport
facilities and the associated utility services
·
Construction
of the new waterfront promenade, landscape works and the associated utility
services
·
The
Trunk Road (i.e. CWB) within the study area and the associated slip roads for
connection to the Trunk Road.
2.2.4.
The project also contains various Schedule 2 DPs that, under the EIAO,
require Environmental Permits (Eps) to be granted by the DEP before they may be
either constructed or operated. Table 2.1 summarises the five
individual DPs under this Project. Figure 2.1 shows the locations of these Schedule 2 DPs.
Table 2.1 Schedule 2 Designated Projects under this
Project
|
Item |
Designated Project |
EIAO Reference |
Reason for inclusion |
|
DP1
|
Central-Wanchai
Bypass (CWB) including its road tunnel and slip roads |
Schedule
2, Part I, A.1 and A.7 |
Trunk
road and road tunnel more than 800 m in length |
|
DP2
|
Road
P2 and other roads which are classified as primary/district distributor roads
|
Schedule
2, Part I, A.1 |
Primary
/ district distributor roads |
|
DP3
|
Reclamation
works including associated dredging works |
Schedule
2, Part I, C.1 and C.12 |
Reclamation
more than 5 ha in size and a dredging operation less than 100 m from a
seawater intake point |
|
DP5
|
Wan
Chai East Sewage Outfall |
Schedule
2, Part I, F.5 and F.6 |
Submarine
sewage pipelines with a total diameter more than 1,200 mm and include a
submarine sewage outfall |
|
DP6
|
Dredging
for the Cross-harbour Water Mains from Wan Chai to Tsim Sha Tsui |
Schedule
2, Part I, C.12 |
A
dredging operation less than 100 m from a seawater intake point |
2.3.1.
Due to the multi-contract nature of the Project, there are a number of
contracts sub-dividing the whole works area into different work areas to be
commenced. Contractors of individual contracts will be required by the EP
holder to apply Further Environmental Permits (FEP) such that the impact
monitoring stations are sub-divided accordingly to facilitate the
implementation of EM&A programme and to streamline the EM&A reporting
for individual FEP holders correspondingly.
2.3.2.
The details of individual contracts are summarized in Table 2.2.
Table 2.2 Details of Individual Contracts under the Project
|
Contract No. |
Contract Title |
Associated DP(s) |
Construction
Commencement Date |
|
HK/2009/01 |
Wan
Chai Development Phase II – Central –Wanchai Bypass at Hong Kong Convention
and Exhibition Centre |
DP3,
DP6 |
23
July 2010 (Completed) |
|
DP1,
DP2 |
25
August 2011 (Completed) |
||
|
HK/2009/02 |
Wan
Chai Development Phase II – Central – Wan Chai Bypass at WanChai East |
DP3,
DP5 |
5
July 2010 (Completed) |
|
DP1 |
26
April 2011 (Completed) |
||
|
HY/2009/11 |
Wan
Chai Development Phase II and Central – Wan Chai Bypass – North Point
Reclamation |
DP3 |
17
March 2010 (Completed) |
|
HY/2009/15 |
Central-Wanchai
Bypass – Tunnel (Causeway Bay Typhoon Shelter Section) |
DP3 |
10
November 2010 (Completed) |
|
DP1 |
13
July 2011 (Completed) |
||
|
HK/2010/06 |
Wan
Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen Wan Line |
DP3 |
22
March 2011 (Completed) |
|
04/HY/2006 |
Reconstruction
of Bus Terminus near Man Yiu Street and Man Kwong Street |
DP1 |
September 2010 (Completed) |
|
HY/2009/17 |
Central
– Wan Chai Bypass (CWB) at FEHD Whitfield Depot – Advanced piling works. |
DP1 |
5
October 2010 (Completed) |
|
HY/2009/18 |
Central
– Wan Chai Bypass (CWB) – Central Interchange |
DP1 |
21
April 2011 (Completed) |
|
HY/2009/19 |
Central
– Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor
Link |
DP1 |
24
March 2011 |
|
HK/2012/08 |
Wan Chai Development Phase II Central- Wan Chai Bypass at Wan Chai West |
DP1,DP2, DP3 |
10
March 2014 (Completed) |
|
HY/2010/08 |
Central-
Wanchai Bypass Tunnel – Tunnel (Slip Road 8) |
DP1,
DP2, DP3 |
21
March 2013 (Completed) |
|
HY/2011/08 |
Central-Wan
Chai Bypass (CWB) – Tunnel Buildings, Systems and Fittings, and Works
Associated with Tunnel Commissioning |
DP1 |
8
October 2014 (Completed) |
2.4.1.
Civil Engineering and Development Department and Highways Department are
the overall project controllers for the Wan Chai Development Phase II and
Central-Wan Chai Bypass respectively. For the construction phase of the
Project, Project Engineer, Contractor(s), Environmental Team and Independent
Environmental Checker are appointed to manage and control environmental issues.
2.4.2.
The proposed project organization and lines of communication with
respect to environmental protection works are shown in Figure 2.2. Key personnel and contact particulars are summarized in Table 2.3:
Table 2.3 Contact Details of Key Personnel
|
Party |
Role |
Post |
Name |
Contact
No. |
Contact
Fax |
|
AECOM |
Engineer’s
Representative for WDII |
Senior Resident
Engineer |
Mr. S.K. Lo |
3519 9033 |
2587 1877 |
|
Engineer’s
Representative for CWB |
Principal
Resident Engineer |
Mr. David Kwan |
3762 2759 |
2142 5577 |
|
|
China
State Construction Engineering (HK) Ltd. |
Contractor
under Contract no. HY/2009/15 |
Project
Director |
Mr. Chris Leung |
3557 6393 |
2566 2192 |
|
Site
Agent |
Mr. Patrick Ho |
3557 6405 |
|||
|
Construction
Manager |
Mr. Tom Tong |
3557 6415 |
|||
|
Environmental
Officer |
Mr. Gabriel Wong |
6114 9590 |
|||
|
Environmental
Supervisor |
Mr. Gordon Lai |
6145 6365 |
|||
|
China State |
Contractor under Contract no.
HY/2010/08 |
Project Director |
Mr. Chris Leung |
3467 4299 |
2566 8061 |
|
Project Manager |
Mr. Chan Ying Lun |
3418 3001 |
|||
|
Site
Agent |
Mr. Danny Chan |
3557 6452 |
|||
|
Marine
Manager |
Mr. Nickael Chan |
3557 6333 |
|||
|
Construction
Manager |
Mr. Tom Tong |
3557 6367 |
|||
|
Environmental Officer |
Mr. Gabriel Wong |
3557 6466 |
|||
|
Ramboll Hong
Kong Limited |
Independent Environmental
Checker (IEC) |
Independent Environmental Checker (IEC) |
Mr. David Yeung |
3465 2888 |
3465 2899 |
|
Lam Geotechnics Limited |
Environmental Team (ET) |
Environmental Team Leader (ETL) |
Mr. Raymond Dai |
2882 3939 |
2882 3331 |
2.4.3.
In the reporting month, the principal work activities of individual
contracts conducted are as follow:
Contract no. HY/2009/15- Wan Chai
Bypass Tunnel (Causeway Bay Typhoon Shelter Section)
Nil
Contract no. HY/2010/08- Wan Chai
Bypass Tunnel (Slip Road 8)
Nil
2.4.4.
In coming reporting month, the principal work activities of individual contracts
are anticipated as follows:
Contract no. HY/2009/15- Wan Chai
Bypass Tunnel (Causeway Bay Typhoon Shelter Section)
Nil
Contract no. HY/2010/08- Wan Chai
Bypass Tunnel (Slip Road 8)
Nil
3.1.1.
A summary of the current status on licences and/or permits on
environmental protection pertinent to the Project is shown in Table 3.1.
Table 3.1 Summary of the
current status on licences and/or permits on environmental protection pertinent
to the Project
|
Permits
and/or Licences |
Reference
No. |
Issued
Date |
Status |
|
Environmental Permit |
EP-356/2009 |
30 Jul 2009 |
Valid |
|
Further
Environmental Permit |
FEP-01/356/2009 |
18 Feb 2010 |
Surrendered |
|
Further
Environmental Permit |
FEP-02/356/2009 |
24 Mar 2010 |
Surrendered |
|
Further
Environmental Permit |
FEP-03/356/2009 |
24 Mar 2010 |
Surrendered |
|
Further Environmental Permit |
FEP-04/356/2009 |
22 Nov 2010 |
Valid |
|
Further Environmental Permit |
FEP-05/356/2009 |
24 Mar 2011 |
Surrendered |
|
Further Environmental Permit |
FEP-06/356/2009 |
5 Mar 2013 |
Surrendered |
|
Further Environmental Permit |
FEP-07/356/2009 |
26 July 2013 |
Valid |
|
Further Environmental Permit |
FEP-08/356/2009 |
1 Aug 2016 |
Surrendered |
|
Environmental Permit |
EP-364/2009/H |
22 Apr 2020 |
Valid |
|
Further Environmental Permit |
FEP-01/364/2009 |
24 Mar 2010 |
Valid |
|
Further Environmental Permit |
FEP-02/364/2009 |
21 Apr 2010 |
Surrendered |
|
Further Environmental Permit |
FEP-03/364/2009 |
12 Jul 2010 |
Surrendered |
|
Further Environmental Permit |
FEP-04/364/2009/A |
14 Oct 2010 |
Surrendered |
|
Further Environmental Permit |
FEP-05/364/2009/A |
15 Nov 2010 |
Surrendered |
|
Further Environmental Permit |
FEP-06/364/2009/A |
22 Nov 2010 |
Valid |
|
Further Environmental Permit |
FEP-07/364/2009/H |
22 Apr 2020 |
Valid |
|
Further Environmental Permit |
FEP-08/364/2009/A |
15 Jun 2012 |
Surrendered |
|
Further Environmental Permit |
FEP-09/364/2009/B |
5 March 2013 |
Surrendered |
|
Further Environmental Permit |
FEP-10/364/2009/B |
26 July 2013 |
Valid |
|
Further Environmental Permit |
FEP-11/364/2009/E |
22 Dec 2016 |
Surrendered |
|
Further Environmental Permit |
FEP-12/364/2009/D |
1 Aug 2016 |
Surrendered |
|
Environmental Permit |
EP-376/2009 |
13 Nov 2009 |
Valid |
|
Further Environmental Permit |
FEP-01/376/2009 |
31 Mar 2015 |
Surrendered |
|
Further Environmental Permit |
FEP-02/376/2009 |
1 Aug 2016 |
Surrendered |
3.1.2.
Due to the multi-contract nature of the Project, the status of permits
and/or licences under the individual contract(s) are presented as below:
Contract no. HY/2009/15 – Central-Wanchai Bypass – Tunnel (Causeway Bay
Typhoon Shelter Section)
3.1.3.
Summary of the current status on licences and/or permits on
environmental protection pertinent and submission for contract no. HY/2009/15
under FEP-04/356/2009 are shown in Table 3.6 and Table 3.7.
Table 3.6 Cumulative Summary
of Valid Licences and Permits under Contract no. HY/2009/15
|
Permits
and/or Licences |
Reference
No. |
Issued
Date |
Valid Period/ Expiry Date |
Status |
|
Further Environmental Permit |
FEP-04/356/2009 |
22 Nov 2010 |
N/A |
Valid |
|
Notification of Works Under APCO |
321822 |
24 Sep 2010 |
N/A |
Valid |
|
Registration as a Chemical Waste Producer |
WPN5213-147-C1169-35 |
15 Nov 2010 |
N/A |
Valid |
|
Billing Account
under Waste Disposal Ordinance |
7011553 |
30 Sep 2010 |
N/A |
Valid |
Table 3.7 Summary of submission status under
FEP-04/356/2009 Condition
|
FEP Condition |
Submission |
Date of Submission |
|
Condition
2.6 |
Management
Organization of Main Construction Companies |
30
Sep 2010 |
|
Amendment
for Management Organization of Main Construction Companies |
16 May 2011 |
|
|
Condition 2.7 |
Works Schedule and Location
Plans |
27 Oct 2010 |
|
|
Amendment for Works Schedule
and Location Plans |
12 Nov 2010 |
|
Condition 2.8 |
Silt Curtain Deployment Plan |
30 Nov 2010 |
|
Amendment for Silt Curtain
Deployment Plan |
24 Feb 2011 |
|
|
Amendment for Silt Curtain
Deployment Plan |
11 May 2011 |
|
|
Amendment for Silt Curtain
Deployment Plan |
11 Sep 2012 |
|
|
Amendment for Silt Curtain
Deployment Plan |
30 Oct
2012 |
|
|
Silt Curtain Deployment Plan
(Rev.8) |
28 Nov 2020 |
|
|
Condition 2.9 |
Silt
Screen Deployment Plan |
19 Oct
2010 |
|
Amendment for Silt Screen
Deployment Plan |
18 Feb
2011 |
|
|
Amendment for Silt Screen
Deployment Plan |
15 Jun
2011 |
|
|
Silt Screen Deployment Plan
(Rev.4) |
26 Nov
2019 |
|
|
Condition 2.18 |
Proposal
for the Removal of Odorous Sediment and Slime |
13 Jan
2011 |
|
Amendment for Proposal for
the Removal of Odorous Sediment and Slime |
8 Mar 2011 |
|
|
Amendment for Proposal for
the Removal of Odorous Sediment and Slime |
2 Aug 2011 |
|
|
Condition 2.21 |
Landscape Plan |
18 Feb
2011 |
|
Condition 2.23 |
Noise Management Plan |
20 Oct
2010 |
|
Amendment for Noise Management
Plan |
27 Jan 2011 |
Contract no. HY/2010/08 –Central - Wan Chai Bypass
(CWB) –Tunnel (Slip Road 8)
3.1.4.
Summary of the current status on licences and/or permits on
environmental protection pertinent and submission for contract no. HY/2010/08
under FEP-07/356/2009 are shown in Table 3.11 and Table 3.12.
Table
3.11 Cumulative
Summary of Valid Licences and Permits under Contract no. HY/2010/08
|
Permits
and/or Licences |
Reference
No. |
Issued Date |
Valid Period/ Expiry Date |
Status |
|
Further
Environmental Permit |
FEP-07/356/2009 |
26 Jul 2013 |
NA |
Valid |
|
FEP-10/364/2009/B |
26 Jul 2013 |
NA |
Valid |
|
|
Notification
of Works Under APCO |
357176 |
2 Apr 2013 |
N/A |
Valid |
|
Registration
as a Chemical Waste Producer |
WPN5213-147-C1169-44 |
27 Mar 2013 |
N/A |
Valid |
|
Billing
Account under Waste Disposal Ordinance |
7017170 |
27 Mar 2013 |
N/A |
Valid |
|
Billing Account under Waste
Disposal Ordinance (Dumping by Vessel) |
7020947 |
22 Dec 2014 |
N/A |
Valid |
Table 3.12 Summary of
submission status under EP-356/2009 and FEP-07/356/2009 Condition
|
FEP Condition |
Submission |
Date of Submission |
|
Condition
2.8 |
Silt
Curtain Deployment Plan (Rev 7) |
28 Nov
2020 |
|
Condition 2.9 |
Silt Screen Deployment Plan (Rev 5) |
1 March 2019 |
|
Condition
2.23 |
Noise
Management Plan (Rev 2) |
25 Mar 2014 |
|
Condition
2.24 |
Landscape
Plan (Rev 2) |
23 Sep
2014 |
Noise Monitoring Stations
4.1.1.
The noise monitoring stations for the Project are listed and shown in Table
4.1 and Figure
4.1. Appendix 4.1 shows the established
Action/Limit Levels for the monitoring works.
Table 4.1 Noise Monitoring Station
|
Station |
Description |
|
M1b |
Wan Chai Ferry Pier* |
|
M2b |
Noon
Gun Area |
|
M3a |
Tung
Lo Wan Fire Station |
|
M4b |
Victoria Centre |
|
M5b |
City Garden |
|
M6 |
HK
Baptist Church Henrietta Secondary School |
Remarks*: With respect to the demolition of the
temporary Footbridge for Harbour Road Sports, the respective noise monitoring
station M1a was relocated to the rooftop of Wan Chai Ferry Pier, renamed M1b.
Noise Monitoring
Parameters, Frequency and Duration
4.1.2.
The construction noise level shall
be measured in terms of the A-weighted equivalent continuous sound pressure
level (Leq). Leq (30 minutes) shall be used as the
monitoring parameter for the time period between 0700 and 1900 hours on normal
weekdays. For all other time periods, Leq (5 minutes) shall be
employed for comparison with the Noise Control Ordinance (NCO) criteria. Supplementary information for
data auditing, statistical results such as L10 and L90 shall also be obtained
for reference.
4.1.3.
Noise monitoring shall be carried out at all the designated monitoring
stations. The monitoring frequency shall depend on the scale of the
construction activities. The following is an initial guide on the regular
monitoring frequency for each station on a weekly basis when noise generating
activities are underway:
·
One
set of measurements between 0700 and 1900 hours on normal weekdays.
4.1.4.
If construction works are extended to include works during the hours of
1900 – 0700 as well as public holidays and Sundays, additional weekly impact
monitoring shall be carried out during respective restricted hours periods.
Applicable permits under NCO shall be obtained by the Contractor.
Monitoring Equipment
4.1.5.
As referred to in the Technical Memorandum ™ issued under the NCO, sound
level meters in compliance with the International Electrotechnical Commission
Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be
used for carrying out the noise monitoring. Immediately prior to and following
each noise measurement the accuracy of the sound level meter shall be checked
using an acoustic calibrator generating a known sound pressure level at a known
frequency. Measurements may be accepted as valid only if the calibration level
from before and after the noise measurement agree to within 1.0 dB.
4.1.6.
Noise measurements shall not be made in fog, rain, wind with a steady
speed exceeding 5 m/s or wind with gusts exceeding 10 m/s. The wind speed shall
be checked with a portable wind speed meter capable of measuring the wind speed
in m/s.
Air Quality Monitoring
Stations
4.2.1.
The air monitoring stations for the Project are listed and shown in Table
4.2 and Figure 4.1. Appendix 4.1 shows the established
Action/Limit Levels for the monitoring works.
Table 4.2 Air Monitoring
Station
|
Station ID |
Monitoring Location |
Description |
|
CMA1b |
Harbour
Grand Hotel Boundary Wall** |
North Point |
|
CMA2a |
Causeway
Bay Community Centre |
Causeway Bay |
|
CMA3a |
CWB PRE Site Office * |
Causeway Bay |
|
CMA4a |
Society
for the Prevention of Cruelty to Animals |
Wan Chai |
|
CMA5b |
Pedestrian
Plaza*** |
Wan Chai |
|
CMA6a |
WDII PRE Site Office * |
Wan Chai |
Remarks*:
As per the ENPC meeting in March 2011, the monitoring stations CMA3a – Future
CWB site office at Wanchai Waterfront Promenade was renamed as remark.
Remarks**:
The location ID of monitoring station CMA1b was updated as “Harbour Grand Hotel
Boundary Wall” from 05 June 2017 onwards.
Remarks***:
The station ID and monitoring location was updated in December 2014 with
respect to monitoring station relocation.
Air Monitoring Parameters,
Frequency and Duration
4.2.2.
One-hour and 24-hour TSP levels should be measured to indicate the
impacts of construction dust on air quality. The 24-hour TSP levels shall be
measured by following the standard high volume sampling method as set out in
the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix
B.
4.2.3.
All relevant data including temperature, pressure, weather conditions,
elapsed-time meter reading for the start and stop of the sampler,
identification and weight of the filter paper, and any other local atmospheric
factors affecting or affected by site conditions, etc., shall be recorded down
in detail.
4.2.4.
For regular impact monitoring, the sampling frequency of at least once
in every six-days, shall be strictly observed at all the monitoring stations
for 24-hour TSP monitoring. For 1-hour TSP monitoring, the sampling frequency
of at least three times in every six-days should be undertaken when the highest
dust impact occurs.
Sampling Procedure and
Monitoring Equipment
4.2.5.
High volume samplers (HVSs) in compliance with the following
specifications shall be used for carrying out the 1-hour and 24-hour TSP
monitoring:
·
0.6
– 1.7 m3 per minute adjustable flow range;
·
equipped
with a timing / control device with +/- 5 minutes accuracy for 24 hours
operation;
·
installed
with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
·
capable
of providing a minimum exposed area of 406 cm2;
·
flow
control accuracy: +/- 2.5% deviation over 24-hour sampling period;
·
equipped
with a shelter to protect the filter and sampler;
·
incorporated
with an electronic mass flow rate controller or other equivalent devices;
·
equipped
with a flow recorder for continuous monitoring;
·
provided
with a peaked roof inlet;
·
incorporated
with a manometer;
·
able
to hold and seal the filter paper to the sampler housing at horizontal
position;
·
easily
changeable filter; and
·
capable
of operating continuously for a 24-hour period.
4.2.6.
Initial calibration of dust monitoring equipment shall be conducted upon
installation and thereafter at bi-monthly intervals. The transfer standard
shall be traceable to the internationally recognized primary standard and be
calibrated annually. The concern parties such as IEC shall properly document
the calibration data for future reference. All the data should be converted
into standard temperature and pressure condition.
Laboratory Measurement /
Analysis
4.2.7.
A clean laboratory with constant temperature and humidity control, and
equipped with necessary measuring and conditioning instruments to handle the
dust samples collected, shall be available for sample analysis, and equipment
calibration and maintenance. The laboratory should be HOKLAS accredited.
4.2.8.
An alternative non-HOKLAS accredited
laboratory was set-up for carrying out the laboratory analysis,
the laboratory equipment was approved by the ER on
8 February 2011 and
the measurement procedures were witnessed by the IEC. Any measurement performed
by the laboratory was be demonstrated to the satisfaction of the ER and IEC. IEC
shall regularly audit to the measurement performed by the laboratory to ensure
the accuracy of measurement results.
4.2.9.
Filter paper of size 8” x 10” shall be labelled before sampling. It
shall be a clean filter paper with no pinholes, and shall be conditioned in a
humidity-controlled chamber for over 24-hours and be pre-weighed before use for
the sampling.
4.2.10.
After sampling, the filter paper loaded with dust shall be kept in a
clean and tightly sealed plastic bag. The filter paper shall then be returned
to the laboratory for reconditioning in the humidity controlled chamber
followed by accurate weighing by an electronic balance with readout down to 0.1
mg. The balance shall be regularly calibrated against a traceable standard.
4.2.11.
All the collected samples shall be kept in a good condition for 6 months
before disposal.
impact monitoring for
odour patrol
4.2.12.
Odour patrols along the shorelines of Causeway Bay Typhoon Shelter and
ex-Wan Chai Public Cargo Working Area when there is temporary reclamation in
Causeway Bay Typhoon Shelter and/or in the ex-Wan Chai Public Cargo Working
Area, or when there is dredging of the odorous sediment and slime at the
south-western corner of the Causeway Bay Typhoon Shelter. Odour patrols will be
carried out at bi-weekly intervals during July, August and September by a
qualified person of the ET who shall:
·
be
at least 16 years of age;
·
be
free from any respiratory illnesses; and
·
not
be allowed to smoke, eat, drink (except water) or use chewing gum or sweets 30
min
·
before
and during odour patrol
4.2.13.
Odour patrol shall be conducted by independent trained personnel /
competent persons patrolling and sniffing around the shore as shown in Figure 4.1 to detect any
odour at the concerned hours (afternoon is preferred for higher daily
temperature).
4.2.14.
The qualified person will use the nose (olfactory sensor) to sniff
odours at different locations. The main odour emission sources and the areas to
be affected by the odour nuisance will be identified.
4.2.15.
The perceived odour intensity is to be divided into 5 levels which are
ranked in the descending order as follows:
·
0 –
Not detected. No odour perceived or an odour so weak that it cannot be easily characterized
or described;
·
1 –
Slight Identifiable odour, and slight chance to have odour nuisance;
·
2 –
Moderate Identifiable odour, and moderate chance to have odour nuisance;
·
3 –
Strong Identifiable, likely to have odour nuisance;
·
4 –
Extreme Severe odour, and unacceptable odour level.
4.2.16.
The findings including odour intensity, odour nature and possible odour
sources, and also the local wind speed and direction at each location will be
recorded. In addition, some relevant meteorological and tidal data such as
daily average temperature, and daily average humidity, on that surveyed day
will be obtained from the Hong Kong Observatory Station for reference. The
Action and Limit levels for odour patrol are shown in Appendix 4.1.
4.2.17.
The qualified odour patrol member has individual n-butanol thresholds
complied with the requirement of European Standard Method of Air Quality –
Determination of Odour Concentration by Dynamic Olfactometry (EN13725) in the
range of 20 to 80 ppb.
4.3.1.
The EIA Report has identified that the key water quality impact would be
associated with the dredging works during the construction phase. Marine water
quality monitoring for dissolved oxygen (DO), suspended solid (SS) and
turbidity is therefore recommended to be carried out at selected WSD flushing
water intakes. The impact monitoring should be carried out during the proposed
dredging works to ensure the compliance with the water quality standards.
4.3.2.
The updated EM&A Manual for EP-356/2009 (Version in March 2011) is
approval by EPD on 29 April 2011. As such, the Action Level and Limit Level for
the wet season (April – September) will be effected and applied to the water
quality monitoring data from 30 April 2011.
Water Quality Monitoring Stations
4.3.3.
Water quality monitoring was undertaken at 8 monitoring stations for WSD
salt water intakes and cooling water intakes along the seafront of the Victoria
Harbour in the reporting month. The proposed water quality monitoring stations
of the Project are shown in Table 4.3 and Figure 4.1. Appendix
4.1 shows the established Action/Limit Levels for the monitoring
works.
Table 4.3 Marine Water
Quality Stations for Water Quality Monitoring
|
Station
Ref. |
Location |
Easting |
Northing |
|
WSD Salt Water Intake |
|||
|
WSD19 |
Sheung
Wan |
833415.0 |
816771.0 |
|
Cooling Water Intake |
|||
|
C1 |
HKCEC
Extension |
835885.6 |
816223.0 |
|
C7 |
Windsor
House |
837193.7 |
816150.0 |
|
P1 |
HKCEC Phase I |
835774.7 |
816179.4 |
|
P3 |
The Academy of performing Arts |
835824.6 |
816212.0 |
|
P4 |
Shui on Centre |
835865.6 |
816220.0 |
|
P5 |
Government
Buildings (Wanchai
Tower / Revenue Tower / Immigration Tower) |
835895.2 |
816215.2 |
|
Cooling
Water Intake / WSD Salt Water Intake |
|||
|
RW21-P789 |
Great
Eagle Centre/
Sun Hung Kai Centre/ WSD Wanchai
salt water intake / China Resources Building |
836268.0 |
816020.0 |
Remarks: - The cessation of seawater intake operation for C6 was confirmed on 17 May 2011 and the water quality monitoring at C6 was then terminated since 17 May 2011.
- 4-week post construction water quality monitoring at WSD9, WSD10, WSD15 and WSD17 were completed on 6 Feb 2012 and the water quality monitoring at WSD 10 and WSD15 were temporary suspended since 8 Feb 2012, and WSD9 and WSD17 was implemented with respect to HK/2009/02 from 8 Feb 2012 onwards.
- C8 and C9
were implemented with respect to HY/2009/19 from 28 Jan 2012.
- C8
& C9 were temporary suspended since 4 March 2013.
- WSD7 and
WSD20 water quality monitoring were temporarily suspended from 27 Apr 2012.
- C2, C3
C4e and C4w water quality monitoring station was temporarily suspended since 22
Apr 2013
- P1, P3,
P4 and P5 were commenced since 24 Apr 2013
- C5e
and C5w water quality monitoring station was temporarily suspended since 29 Jul
2013.
- WSD21
water quality monitoring station was temporarily suspended since 12 Mar 2014
- WSD9
and WSD17 water quality monitoring station was temporarily suspended since 8
Sep 2014 flood tide.
- The water quality monitoring station C1 shall be associated with Contract No. HK/2009/02 upon commencement of marine works under DP3 at WCR3 area.
- The
water quality monitoring station RW21-P789 was adjusted to RW21-P789E and RW21-P789W since 28 November 2016
ebb-tide.
- The water quality monitoring was reverted
to previous monitoring station RW21-P789 from PW21-P789E and RW21-P789W from 25
January 2017 onwards.
Water Quality Parameters
4.3.4.
Monitoring of dissolved oxygen (DO), turbidity and suspended solids (SS)
shall be carried out at WSD flushing water intakes and cooling water intakes.
DO and Turbidity are measured in-situ while SS is determined in laboratory.
4.3.5.
In association with the water quality parameters, other relevant data
shall also be measured, such as monitoring location/position, time, sampling
depth, water temperature, pH, salinity, dissolved oxygen (DO) saturation,
weather conditions, sea conditions, tidal stage, and any special phenomena and
work underway at the construction site etc.
Sampling Procedures and
Monitoring Equipment
4.3.6.
The interval between two sets of monitoring should not be less than 36
hours except where there are exceedances of Action and/or Limit Levels, in
which case the monitoring frequency will be increased. Table 4.4
shows the proposed monitoring frequency and water quality parameters. Duplicate
in-situ measurements and water sampling should be carried out in each sampling
event. For selection of tides for in-situ measurement and water sampling, tidal
range of individual flood and ebb tides should be not less than 0.5m.
Table 4.4 Marine Water
Quality Monitoring Frequency and Parameters
|
Activities |
Monitoring
Frequency1 |
Parameters2 |
|
During
the 4-week baseline monitoring period |
Three
days per week, at mid-flood and mid-ebb tides |
Turbidity,
Suspended Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
|
During
marine construction works |
Three
days per week, at mid-flood and mid-ebb tides |
Turbidity,
Suspended Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
|
After completion of marine construction works |
Three
days per week, at mid-flood and mid-ebb tides |
Turbidity,
Suspended Solids (SS), Dissolved Oxygen (DO), pH, Temperature, Salinity |
Notes:
1. For
selection of tides for in-situ measurement and water sampling, tidal range of
individual flood and ebb tides should be not less than 0.5m.
2.
Turbidity should be measured
in situ whereas SS should be determined by laboratory.
Dissolved Oxygen and
Temperature Measuring Equipment
4.3.7.
The instrument should be a portable, weatherproof dissolved oxygen
measuring instrument complete with cable, sensor, comprehensive operation
manuals, and use a DC power source. It should be capable of measuring:
·
a
dissolved oxygen level in the range of 0-20 mg/l and 0-200% saturation
·
a
temperature of 0-45 degree Celsius
4.3.8.
It should have a membrane electrode with automatic temperature
compensation complete with a cable. Sufficient stocks of spare electrodes and
cables should be available for replacement where necessary. (e.g. YSI model 59
meter, YSI 5739 probe, YSI 5795A submersible stirrer with reel and cable or an
approved similar instrument).
4.3.9.
Should salinity compensation not be build-in in the DO equipment,
in-situ salinity shall be measured to calibrate the DO equipment prior to each
DO measurement.
Turbidity Measurement
Instrument
4.3.10.
The instrument should be a portable, weatherproof turbidity-measuring
instrument complete with comprehensive operation manual. The equipment should
use a DC power source. It should have a photoelectric sensor capable of
measuring turbidity between 0‑1000 NTU and be complete with a cable (e.g. Hach
model 2100P or an approved similar instrument).
Sampler
4.3.11.
A water sampler comprises a transparent PVC cylinder, with a capacity of
not less than 2 litres, and can be effectively sealed with latex cups at both
ends. The sampler should have a positive latching system to keep it open and
prevent premature closure until released by a messenger when the sampler is at
the selected water depth (e.g. Kahlsico Water Sampler or an approved similar instrument).
Sample Container and
Storage
4.3.12.
Water samples for suspended solids measurement should be collected in
high-density polythene bottles, packed in ice (cooled to 4°C without being
frozen), and delivered to ALS Technichem (HK) Pty Ltd. as soon as possible
after collection for analysis.
Water Depth Detector
4.3.13.
A portable, battery-operated echo sounder shall be used for the
determination of water depth at each designated monitoring station. This unit
can either be handheld or affixed to the bottom of the workboat, if the same
vessel is to be used throughout the monitoring programme.
Salinity
4.3.14.
A portable salinometer capable of measuring salinity in the range of
0-40 ppt shall be provided for measuring salinity of the water at each of
monitoring location.
Monitoring Position
Equipment
4.3.15.
A hand-held or boat-fixed type digital Global Positioning System (GPS)
with waypoint bearing indication or other equivalent instrument of similar
accuracy shall be provided and used during monitoring to ensure the monitoring
vessel is at the correct location before taking measurements.
Calibration of In-situ
Instruments
4.3.16.
All in-situ monitoring instrument shall be checked, calibrated and
certified by a laboratory accredited under HOKLAS or equivalent before use, and
subsequently re-calibrated at 3 monthly intervals throughout all stages of the
water quality monitoring. Responses of sensors and electrodes should be checked
with certified standard solutions before each use. Wet bulb calibration for a
DO meter shall be carried out before measurement at each monitoring location.
4.3.17.
For the on site calibration of field equipment by the ET, the BS
127:1993, "Guide to Field and on-site test methods for the analysis of
waters" should be observed.
4.3.18.
Sufficient stocks of spare parts should be maintained for replacements
when necessary. Backup monitoring equipment shall also be made available so
that monitoring can proceed uninterrupted even when some equipment is under
maintenance, calibration, etc.
4.3.19.
Current calibration certificates of equipments are presented in Appendix
4.2.
Laboratory Measurement /
Analysis
4.3.20.
Analysis of suspended solids has been carried out in a HOKLAS accredited
laboratory, ALS Technichem (HK) Pty Ltd. Water samples of about 1L shall be
collected at the monitoring stations for carrying out the laboratory SS
determination. The SS determination work shall start within 24 hours after
collection of the water samples. The SS determination shall follow APHA 19ed or
equivalent methods subject to the approval of IEC and EPD.
Enhanced Water Quality Monitoring in the ex-Wan
Chai Public Cargo
Working Area and the Causeway Bay Typhoon Shelter
4.3.21.
The enhanced water quality monitoring and audit programme is to avoid
aggravation of odour nuisance from seawater arising from temporary reclamation
in the ex-Wan Chai Public Cargo Working Area and the Causeway Bay Typhoon
Shelter.
4.3.22.
Dissolved oxygen monitoring at the intakes C6 and C7 in Causeway Bay Typhoon
Shelter when there is temporary reclamation in Causeway Bay Typhoon Shelter and
at the south-western and south-eastern corners of the ex-Wan Chai Public Cargo
Working Area. The proposed water quality monitoring stations of the Project are
shown in Table 4.5 and Figure
4.1.
Table 4.5 Marine Water Quality
Stations for Enhanced Water Quality Monitoring
|
Station |
Location |
|
C6 |
Proposed
Exhibition Station / World Trade Centre |
|
C7 |
Windsor House |
|
Ex-WPCWA-SW |
South-western
of the ex-Wan Chai Public Cargo Working Area |
|
Ex-WPCWA-SE |
South-eastern
of the ex-Wan Chai Public Cargo Working Area |
Remarks:
1. Enhanced DO
monitoring at Windsor House Cooling (Station Ref: C7) was temporarily suspended
since 22 October 2014 with respect to the formation of temporary reclamation
zone TS3 and was resumed from 1 February 2018 onwards with respect to the
completion of removal of temporary reclamation zone.
2. Enhanced DO
monitoring at Monitoring station Ex-WPCWA SE was temporarily suspended from 31
August 2015 with respect to seawall reinstatement works and formation of active
works area. The Enhance DO monitoring at Ex-WPCWA SE was resumed on 11 May 2016
due to completed section of seawall reinstatement works at Ex-PCWA.
4.3.23.
The monitoring of dissolved oxygen are to be carried out 3 days per
week, at mid-flood and mid-ebb tides for 3 water depths (1m below water
surface, mid-depth and 1m above sea bed, except where the water depth less than
6m, the mid-depth may be omitted. If the water depth be equal to or less than
3m, only the mid-depth will be monitored).
Daily SS Monitoring and 24 hours Turbidity
Monitoring System
4.3.24.
During dredging of the sediment at the south-western corner of the
Causeway Bay Typhoon Shelter, daily monitoring of suspended solids and 24
hour monitoring of turbidity at the cooling water intakes (C6 and C7) shall be conducted.
4.3.25.
The 24 hours monitoring of turbidty at the
cooling water intakes (C6 and C7) shall be established
by setting up a continuous water quality monitoring station in front of the
intakes during the dredging activities. The monitoring system include the
turbidity sensor and data logger which is capable of data capturing at every 5 minutes. The data sahll be downloaded daily and compared with the
Action and Limit level determined during the baseline water qualtiy monitoring
at the cooling water intake locations.
Additional Dissovled oxygen Monitoring FOR CULVERT
L WATER DISCHARGE FLOW
4.3.26.
In response to the Condition 2.18 of the Environmental Permit no.
EP-356/2009 requiring that a silt curtain / impermeable barrier system be
installed to channel water discharge flow from Culvert L to locations outside
the embayment area, a proposed replacement of the requirement with additional
dissolved oxygen monitoring has been conducted at three monitoring stations,
namely A, B and C between the eastern seawall of Central Reclamation Phase III
and the HKCEC Extension since November 2011 under EP-356/2009 so that DO level
between the eastern seawall of Central Reclamation Phase II and the HKCEC
extension could be continuously monitored.
4.3.27.
With respect
to the commencement of dredging works under HK/2012/08 and the installation of
MTR precast protection unit, the enhanced water quality monitoring for Culvert
L was temporarily suspended since 24 July 2013
4.3.28.
The monitoring of dissolved oxygen are to be carried out once per week,
at mid-flood and mid-ebb tides for 3 water depths (1m below water surface,
mid-depth and 1m above sea bed, except where the water depth less than 6m, the
mid-depth may be omitted. If the water depth be equal to or less than 3m, only
the mid-depth will be monitored).
5.0.1.
The environmental monitoring will be implemented based on the division
of works areas of each designed project managed under different contracts with
separate FEP applied by individual contractors. Overall layout showing work
areas of various contracts, latest status of work commencement and monitoring
stations is shown in Figure 2.1 and Figure 4.1. The monitoring
results are presented in according to the Individual Contract(s).
5.0.2.
In the reporting month, the concurrent contracts are as follows:
Contract no. HY/2009/15- Central- Wan
Chai Bypass Tunnel (Causeway Bay Typhoon Shelter Section)
Contract no. HY/2010/08- Central- Wan
Chai Bypass Tunnel (Slip Road 8)
5.0.3.
As confirmed by WDII RSS, the marine construction works under Contract
HK/2009/01 have been completed since 24 July 2017, the monitoring association
with Contract HK/2009/01 and relevant reporting has been ceased in the
reporting month.
5.0.4.
As confirmed by CWB RSS, the marine construction works under Contract
HY/2009/15 and relevant reporting have been completed by 19 June 2017, the
monitoring association with Contract HY/2009/15 and relevant reporting has been
ceased in the reporting month.
5.0.5.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2009/15 at EX-PCWA area on 26 June 2019. The relevant noise
monitoring station monitoring stations namely M2b – Noon day gun area, M3a -
Tung Lo Wan Fire Station and relevant air quality monitoring stations namely
CMA3a – CWB PRE Site Office would be associated with Contract HY/2009/15 in the
reporting month.
5.0.6.
As confirmed by CWB RSS, the marine construction works under Contract
HY/2010/08 and relevant reporting have been completed by 21 September 2018, the
air monitoring stations namely CMA3a - CWB PRE Site Office and noise monitoring
station namely M2b – Noon day gun area and M3a - Tung Lo Wan Fire Station association
with Contract HY/2010/08 and relevant reporting has been ceased in the
reporting month.
5.0.7.
As confirmed by WDII RSS, the marine construction works under HK/2012/08
and relevant reporting have been completed by 2 January 2019, the air
monitoring stations namely CMA5b - Pedestrian Plaza, CMA6a – WDII PRE Office
and noise monitoring station namely M1a - Footbridge for Ex-Harbour Road Sports
Centre association with Contract HK/2012/08 and relevant reporting has been
ceased in the reporting month.
5.0.8.
As confirmed by CWB RSS, the marine construction works under Contract
HY/2009/19 and relevant reporting have been completed, the monitoring
association with Contract HY/2009/19 and relevant reporting has been ceased in
the reporting month.
5.0.9.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2010/08 at CBTS area on 7 August 2019. The relevant noise and
air quality monitoring station monitoring station namely CMA3a – CWB PRE Site
Office, M2b – Noon day gun area and M3a - Tung Lo Wan Fire Station would be
associated with Contract HY/2010/08 in the reporting month.
5.0.10.
Referring to WDII RSS confirmation on the completion of marine works
under HK/2009/02 within the EP-356 area on 30 September 2019, the relevant air
quality and noise monitoring stations namely CMA3a – CWB PRE Site Office, CMA4a
- SPCA, and M1a – Footbridge for Ex-Harbour Road Sports Centre would not be
associated with Contract HK/2009/02 in the reporting month.
5.0.11.
The environment monitoring schedules for reporting month and coming
month are presented in Appendix 5.1.
5.0.12.
The proposed division of noise monitoring stations are summarized in Table
5.2 below.
Table 5.2
Noise Monitoring Station
for Contract nos. HY/2009/15 and HY/2010/08
|
Station |
Description |
|
M2b |
Noon-day
gun area |
|
M3a |
Tung
Lo Wan Fire Station |
5.0.13.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2009/15 at EX-PCWA area on 26 June 2019. The relevant noise
monitoring station monitoring stations namely M2b – Noon day gun area and M3a -
Tung Lo Wan Fire Station would be associated with Contract HY/2009/15 in the
reporting month.
5.0.14.
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2010/08 at CBTS area on 7 August 2019. The relevant noise
monitoring station monitoring stations namely M2b – Noon day gun area and M3a -
Tung Lo Wan Fire Station would be associated with Contract HY/2010/08 in the
reporting month.
5.0.15.
As confirmed by CWB RSS that marine works under HY/2010/08 and
HY/2009/15 under EP-356/2009 was completed on 22 March 2021, noise monitoring
stations M2b – Noon-day gun area and M3a – Tung Lo Wan Fire Station under
EP-356/2009 were suspended from 22 March 2021.
5.2.1
The proposed division of air monitoring stations are summarized in Table
5.7 below.
Table 5.7 Air Monitoring Stations for Contract no. HY/2009/15 and HY/2010/08
|
Station |
Description |
|
CMA3a |
CWB PRE Site Office |
5.2.2
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2009/15 at EX-PCWA area on 26 June 2019. The relevant air
quality monitoring station monitoring station namely CMA3a – CWB PRE Site
Office would be associated with Contract HY/2009/15 in the reporting month.
5.2.3
As confirmed by CWB RSS, the seabed reinstatement works was resumed
under Contract HY/2010/08 at CBTS area on 7 August 2019. The relevant air
quality monitoring station monitoring station namely CMA3a – CWB PRE Site
Office would be associated with Contract HY/2010/08 in the reporting month.
5.2.4
As confirmed by CWB RSS that marine works under HY/2010/08 and
HY/2009/15 under EP-356/2009 was completed on 22 March 2021, air quality
monitoring stations CMA3a – CWB PRE Site Office under EP-356/2009 was suspended
from 22 March 2021.
5.3.1
Water quality monitoring station C7 and Enhance DO monitoring station C6
shall be associated with Contract HY/2010/08, upon confirmation of marine
construction works completion under Contract HY/2009/15 at CBTS area and
Ex-PCWA area since 19 June 2017.
5.3.2
Referring to CWB RSS confirmation on the completion of marine
construction activities within the Ex-PCWA area and the completion of the post
construction water quality monitoring, the respective Enhance DO Monitoring
within Ex-PCWA for monitoring station Ex-PCWA SE and Ex-PCWA SW was temporarily
suspended since 07 March 2017 ebb tide onwards.
5.3.3
With respect to the reinstatement of the silt screen system for Cooling
Water Intakes P7, P8, P9 and WSD Water Intake RW21, the respective water
quality monitoring was reverted to the previous monitoring location for Water
Quality Monitoring Station RW21-P789 from water quality stations RW21-P789 East
(RW21-P789E) and RW21-P789 West (RW21-P789W) from 25 January 2017 onwards.
5.3.4
With respect to the temporarily suspension of marine construction works
at WCR3 Area by Contract HK/2009/02, the installed silt screen for intake group
(P7, P8, P9 and WSD21) was removed on 26 November 2016.
5.3.5
As advised by the Contractor of HK/2009/01, all silt screen remains
removal works at P1, P3, P4, P5 and C1 water quality monitoring stations were
completed on 8 May 2016.
5.3.6
With respect to the marine works undertaken at WCR3 by Contract HK/2009/02,
the respective water quality monitoring station C1 associated with Contract
HK/2009/01 was updated as in association with Contract HK/2009/01 and Contract
HK/2009/02.
5.3.7
With respect to the marine works undertaken at CBTS by Contract
HY/2010/08, the respective water quality monitoring station C7 associated with
Contract HY/2009/15 was updated as in association with Contract HY/2009/15 and
Contract HY/2010/08.
5.3.8
With respect to the marine works undertaken at HKCEC2 by Contract
HK/2012/08, the respective water quality monitoring station WSD19, P1, P3, P4,
and P5 were associated with Contract HK/2012/08.
5.3.9
As confirmed by WDII RSS, the marine construction works under Contract
HK/2009/01 have been completed since 24 July 2017, the monitoring association
with Contract HK/2009/01 and relevant reporting has been ceased in the
reporting month.
5.3.10
As confirmed by CWB RSS, the marine construction works under Contract HY/2009/15
and relevant reporting have been completed by 19 June 2017, the monitoring
association with Contract HY/2009/15 and relevant reporting has been ceased in
the reporting month.
5.3.11
Referring to CWB RSS confirmation on the completion of marine works
within the TS3 area and the completion of the post construction water quality
monitoring, the respective water quality monitoring within TS3 for monitoring
station C7 was temporarily suspended since 29 October 2018 onwards.
5.3.12
Referring to WDII RSS confirmation on the completion of marine works
under HK/2012/08 within the EP-356 area on 2 January 2019 and the completion of
the post construction water quality monitoring (From 2 January 2019 to 30
January 2019), the respective water quality monitoring stations P1, P3, P4, P5
and WSD19 within EP-356 area was temporarily suspended since 15 February 2019
onwards.
5.3.13
Referring to CWB RSS confirmation on the resumption of marine works
within the CBTS area. The respective water quality monitoring within CBTS for
monitoring station C7 was resumed since 7 August 2019 and associated with
HY/2009/15 and HY/2010/08.
5.3.14
Referring to WDII RSS confirmation on the completion of marine works
under HK/2009/02 within the EP-356 area on 30 September 2019 and the completion
of the post construction water quality monitoring (From 30 September 2019 to 26
October 2019), the respective water quality monitoring stations C1 and
RW21-P789 within EP-356 area was temporarily suspended from 26 October 2019
onwards.
Table 5.11 Water quality Monitoring Stations for contracts with
respect to remaining DP3 work areas after the completion of DP5 & DP6 in
2012 and intake diversion in 2013
|
Contract No. |
Remaining DP3 and work
area(s) |
Relevant Water quality
monitoring Stations, |
Division of WQM w.r.t tentative works commenced /
to be commenced |
|
HK/2009/02 |
WCR3,
WCR4, TWCR4 |
RW21-P7892,
C11 |
Apr
2013 |
|
HK/2012/08 |
HKCEC2W,
HKCEC2E |
WSD19,
P13, P33, P43, P53 |
Aug
2013 |
|
HY/2010/08 |
TCBR3,
TCBR4 |
C64,
C74 (plus enhanced DO monitoring) |
Mar
2014 |
Remarks:
1. The water quality monitoring station C1 shall be associated with Contract No. HK/2009/02 upon commencement of marine works under DP3 at WCR3 area.
2. 4 intakes (re-provisioned Wanchai WSD intake, Great Eagle Centre, China Resources Centre & Sun Hung Kai Centre constructed adjacent to each other) taken as a single group for silt screen protection and monitoring. Re-provisioned intake reference: P1: HKCEC Phase 1; P3: APA, P4: Shui On; P5: Government Buildings (Wanchai Tower / Revenue Tower / Immigration Tower)
3. The water quality monitoring stations for WSD19, P1, P3, P4, P5 shall be associated with Contract No. HK/2009/01 prior to their transition to Contract HK/2012/08.
4. Enhance DO monitoring station C6 and water quality monitoring station C7 shall be associated with Contract HY/2010/08, upon confirmation of marine construction works completion under Contract HY/2009/15 at CBTS area and Ex-PCWA area since 19 June 2017.
5. Referring to CWB RSS confirmation on the completion of marine construction activities within the TS3 area and the completion of the post construction water quality monitoring, the respective Enhance DO Monitoring within TS3 for monitoring station C6 and C7 was temporarily suspended since 05 March 2018 onwards.
6. With respect to WDII RSS confirmation on the
completion of marine works under Contract HK/2009/01 since 24 July 2017, the
association of WQM station C1 under Contract HK/2009/01 has been ceased in the
November 2017 reporting month.
7. Referring to CWB RSS confirmation on the
completion of marine works within the TS3 area and the completion of the post
construction water quality monitoring, the respective water quality monitoring
within TS3 for monitoring station C7 was temporarily suspended since 29 October
2018 onwards
8. Referring to WDII RSS confirmation on the
completion of marine works under HK/2012/08 within the EP-356 area on 2 January
2019 and the completion of the post construction water quality monitoring (From
2 January 2019 to 30 January 2019), the respective water quality monitoring
stations P1, P3, P4, P5 and WSD19 within EP-356 area was temporarily suspended
since 15 February 2019 onwards.
9. Referring to WDII RSS confirmation on the
completion of marine works under HK/2009/02 within the EP-356 area on 30
September 2019 and the completion of the post construction water quality
monitoring (From 30 September 2019 to 26 October 219), the respective water
quality monitoring stations C1 and RW21-P789 within EP-356 area was temporarily
suspended from 26 October 2019 onwards.
Contract
no. HY/2009/15 – Central- Wan Chai Bypass Tunnel (Causeway Bay Typhoon Shelter
Section) and HY/2010/08 - Central- Wan Chai Bypass Tunnel (Slip Road 8)
5.3.15
The proposed division of water quality monitoring stations are
summarized in Table 5.17 below:
Table 5.17 Water quality monitoring Stations for
Contract no. HY/2009/15 and HY/2010/08
|
Station
Ref. |
Location |
Easting |
Northing |
|
Cooling Water Intake |
|||
|
C7 |
Windsor
House |
837193.7 |
816150.0 |
5.3.16
Referring to CWB RSS confirmation on the resumption of marine works
within the CBTS area. The respective water quality monitoring within CBTS for
monitoring station C7 was resumed since 7 August 2019 and associated
with HY/2009/15 and HY/2010/08
5.3.17
Referring to CWB RSS confirmation, there was no marine works under
EP-356/2009 until mid-September 2020. The respective water quality monitoring
station C7 within EP-356 area was temporarily suspended from 15 May 2020.
5.3.18
Referring to CWB RSS confirmation on the resumption of marine works
within the CBTS area the respective water quality monitoring within CBTS for
monitoring station C7 was resumed since 16 September 2020.
5.3.19
As confirmed by CWB RSS that marine works under HY/2010/08 and
HY/2009/15 under EP-356/2009 was completed on 22 March 2021, 4 week
post-construction water quality monitoring at C7 was commenced on 22 March 2021
and ended on 19 April 2021.
5.3.20
The water quality monitoring at Station C7 has been temporarily
suspended since 20 April 2021 after the 4-week post-construction water quality
monitoring as agreed with IEC.
5.3.21
Water quality monitoring results measured in this reporting period are
reviewed and summarized. Details of water quality monitoring results and
graphical presentation can be referred in Appendix 5.4.
Contract no. HY/2009/15 - Central-Wanchai Bypass –
Tunnel (Causeway Bay Typhoon Shelter Section)
5.3.22
Details of the waste disposal in the reporting period are summarized in Table
5.19
Table 5.19 Details
of Waste Disposal for Contract no. HY/2009/15
|
Waste Type |
Quantity this month |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
Remarks |
|
Inert
C&D materials disposed, m3 |
NIL |
141579.2 |
Tuen
Mun Area 38 |
NIL |
|
NIL |
65216 |
TKO137
FB |
NIL |
|
|
Inert
C&D materials recycled, m3 |
NIL |
8127.21 |
HY/2010/08 |
NIL |
|
NIL |
304 |
Ex-PCWA |
NIL |
|
|
NIL |
111.9 |
TS4 |
NIL |
|
|
Non-inert
C&D materials disposed, m3 |
NIL |
252.2 |
SENT
Landfill |
NIL |
|
Non-inert
C&D materials recycled, kg |
NIL |
299361.5 |
N/A |
NIL |
|
Chemical
waste disposed, kg |
NIL |
8,200 |
N/A |
NIL |
|
Marine
Sediment (Type 1 – Open Sea Disposal), m3 |
NIL (Bulk
Volume) |
156909 (Bulk
Volume) |
Cheung
Chau South |
Dredging
from TCBR1E / TCBR1W / TCBR2/ TCBR3 / TCBR4 / Maintenance dredging |
|
Marine
Sediment (Type 1 – Open Sea Disposal (Dedicate Sites) & Type 2 – Confined
Marine Disposal) , m3 |
NIL (Bulk
Volume) |
327746 (Bulk
Volume) |
East
of Sha Chau / South of the Brothers |
Dredging
from TCBR1E / TCBR1W / TCBR2/ TCBR3 / TCBR4 / Maintenance dredging |
|
Marine
Sediment (Type 3 – Special Treatment / Disposal contained in Geosynthetic
Containers) m3 |
NIL (Bulk
Volume) |
12640 (Bulk
Volume) |
East
of Sha Chau / South of the Brothers |
Dredging
from TCBR1W / Maintenance dredging |
|
Marine
Sediment (Type 2 – Confined Marine Disposal), m3 |
NIL |
9350 (Bulk
Volume) |
East
of Sha Chau |
Dredging
from Eastern Breakwater of CBTS |
|
Marine
Sediment (Type 1 – Open Sea Disposal) , m3 |
NIL (Bulk
Volume) |
600 (Bulk
Volume) |
East
Sha Chau / South of The Brothers |
Dredging from Phase 3 Mooring Re-arrangement |
|
Marine
Sediment (Type 2– Confined Marine Disposal) , m3 |
NIL (Bulk
Volume) |
14,780 (Bulk
Volume) |
South
of The Brothers |
Dredging from Phase 3 Mooring Re-arrangement |
|
Marine
Sediment (Type 3 – Special Treatment / Disposal contained in Geosynehetic
Containers) , m3 |
NIL (Bulk
Volume) |
2,760 (Bulk
Volume) |
South
of The Brothers |
Dredging from Phase 3 Mooring Re-arrangement |
Contract
no. HY/2010/08 –Central - Wan Chai Bypass (CWB) –Tunnel (Slip Road 8)
5.3.23
Details of the waste disposal in
the reporting period are summarized in Table 5.22
Table 5.22 Details of Waste Disposal for Contract no. HY/2010/08
|
Waste Type |
Quantity this month |
Cumulative Quantity-to-Date |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed, m3 |
NIL NIL |
95973.148 33381.84 |
TM38 TKO137 |
|
Inert C&D materials recycled, m3 |
NIL |
NIL |
N/A |
|
Non-inert C&D materials disposed, m3 |
NIL |
NIL |
N/A |
|
Non-inert C&D materials recycled, kg |
NIL |
NIL |
N/A |
|
Chemical waste disposed, L |
NIL |
NIL |
N/A |
|
Marine Sediment (Type 1 – Open Sea Disposal) |
NIL |
62559.4 |
South Cheung Chau / Brothers Island * |
|
Marine Sediment (Type 1 – Open Sea Disposal (Dedicate Sites) & Type
2 – Confined Marine disposal) |
NIL |
28309.2 |
Brothers Island |
|
Marine Sediment (Type 3 – Special Treatment) |
NIL |
7780 |
Brothers Island |
6.0.1.
The Event Action Plan for construction noise, air quality and water
quality are presented in Appendix 6.1.
6.1.1
As confirmed by CWB RSS that marine works for Contract no. HY/2010/08
and HY/2009/15 under EP-356/2009 was completed on 22 March 2021, weekly site
inspection was suspended on 22 March 2021 as agreed with IEC.
7.0.1.
According to Condition 3.4 of the EP-356/2009, this section addresses
the relevant cumulative construction impact due to the concurrent activities of
the current projects including the Central Reclamation Phase III,
Central-Wanchai Bypass and Island Eastern Corridor Link projects.
7.0.3.
According to the construction programme of Central-Wanchai Bypass at
Wanchai West at the Central Reclamation Phase III area, no construction works
was conducted in May 2021 reporting period. In view of the above, the
cumulative construction impact due to the Central Reclamation Phase III (CRIII)
was not anticipated.
7.0.4.
According to the construction programme of Wan Chai Development Phase
II, Central-Wan Chai Bypass and Island Eastern Corridor Link projects, no
construction works under Wan Chai Development Phase II was conducted at Wan
Chai. The major construction activities under Central-Wan Chai Bypass and
Island Eastern Corridor Link Projects was modification works at Central; bridge
noise enclosure installation works, road works, drainage works, soft landscape
works and ventilation building ABWF work at North Point area in the reporting
period. In addition, other non-Wan Chai Development Phase II, Central-Wan Chai
Bypass and Island Eastern Corridor Link projects were observed undertaken at
Wan Chai North and North Point area.
7.0.5.
As relevant site mitigation measures for
air quality, construction noise and water quality were implemented, no significant
air quality, noise and water quality impact was concluded in the reporting
period. No construction work was conducted under EP-356/2009 in the reporting
period. Thus, it is evaluated that the cumulative construction impact from the
concurrent projects including Wan Chai Development Phase II (WDII), Central-
WanChai Bypass (CWB), Island Eastern Corridor Link projects (IECL) was
insignificant.
9.0.1.
No environmental complaints, summons and prosecution were received in
the reporting period.
9.0.2.
The details of cumulative complaint log and updated summary of
complaints are presented in Appendix 9.1
9.0.3.
Cumulative statistic on complaints and successful prosecutions are
summarized in Table 9.1 and Table 9.2 respectively.
Table 9.1 Cumulative
Statistics on Complaints
|
Reporting
Period |
No.
of Complaints |
|
Commencement works (Mar 2010) to last reporting month |
51 |
|
May
2021 |
0 |
|
Total |
51 |
Table 9.2 Cumulative Statistics on Successful
Prosecutions
|
Environmental
Parameters |
Cumulative
No. Brought Forward |
No.
of Successful Prosecutions this month (Offence Date) |
Cumulative
No. Project-to-Date |
|
Air |
- |
0 |
0 |
|
Noise |
- |
0 |
0 |
|
Water |
- |
0 |
0 |
|
Waste |
- |
0 |
0 |
|
Total |
- |
0 |
0 |
10.0.1.
The EM&A programme was carried out in accordance with the EM&A
Manual requirements, minor alterations to the programme proposed were made in
response to changing circumstances.
10.0.2.
The scheduled construction activities and the recommended mitigation
measures for the coming month are listed in Table 10.1.
Table 10.1 Construction
Activities and Recommended Mitigation Measures in Coming Reporting Month
|
Contract
No. |
Key Construction Works |
Recommended Mitigation Measures |
|
HY/2009/15 |
·
Nil |
·
Daily visual
inspection of silt screen to ensure the integrity and condition of silt
screen. ·
Implement silt
screen in accordance with the associated plans submitted to EPD. ·
Ensure proper
deployment of silt curtain around marine construction works area. |
|
HY/2010/08 |
·
Nil |
·
Daily visual
inspection of silt screen to ensure the integrity and condition of silt
screen. ·
Implement silt
screen in accordance with the associated plans submitted to EPD. ·
Ensure proper
deployment of silt curtain around marine construction works area. |