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-01/356/2009, FEP-02/356/2009, FEP-03/356/2009,
Fep-04/356/2009, FEP-05/356/2009, FEP-06/356/2009, FEP-07/356/2009
and FEP-08/356/2009 Final environmental monitoring & audit report
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CLIENTS: |
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Civil Engineering and
Development Department and Highways Department |
Lam Geotechnics Limited 19/F, Remex Centre 42
Wong Chuk Hang Road, H.K. Telephone:
(852) 2882-3939 Facsimile:
(852) 2882-3331 E-mail:
info@lamenviro.com Website:
http://www.lamenviro.com |
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Certified
by: |
|
Raymond
Dai Environmental
Team Leader |
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DATE: 22 |
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2.2 Scope of the Project and Site Description
2.3 Division of the Project Responsibility
2.4 Major construction works undertaken during the course of
the Project
2.5 Project Organization and Contact Personnel
4.2 Air Quality Monitoring and Odour Patrol Results
6. Complaints,
Notification of Summons and Prosecution
7. Comments, Conclusions and
Recommendations
lIST OF FIGUREs
Figure 2.2 Project
Organization Chart
Figure 3.1 Locations of Environmental Monitoring Stations
lIST OF APPENDIces
Appendix 3.1 Action and Limit Level
Appendix 4.1 Event Action Plans
Appendix 4.2 Noise Monitoring Graphical Presentations
Appendix 4.3 Continuous Noise Monitoring Graphical Presentations
Appendix 4.4 Air Quality Monitoring Graphical Presentations
Appendix 4.5 Water Quality Monitoring Graphical Presentations
Appendix 5.1 Environmental Mitigation Implementation Schedule
EXECUTIVE SUMMARY
i.
This
is the Final Environmental Monitoring and Audit (EM&A) Review Report
prepared by Lam Geotechnics Limited for Wan Chai Development Phase II and
Central-Wan Baypass ¡V Sampling, Field Measurement and Testing work under
EM&A manual Section 10.5
specific for Environmental Permit no. EP-356/2009. This report presents the environmental monitoring
and audit findings during the period of March 2010 to April 2022.
Major construction works under taken during
construction phase monitoring programme
ii.
The
designated project work III (DP3) was awarded to China Harbour ¡V CRBC JV
(Contract HY/2009/11) as part of the Project works by the Highways Department
(HyD). The Further Environmental Permit FEP-01/356/2009 was issued on 18
February 2010 and surrendered on 22 October 2012. The construction site was
handed over to Contract no. HY/2009/19 on 31 December 2011. The major
construction activities of Contract no. HY/2009/19 under EP-356/2009 were
marine piling works, box culvert construction and seawall reinstatement. According to CWB RSS confirmation,
HY/2009/19 works under EP-356/2009 was completed on 09 July 2019.
iii.
The
designated project work III (DP3) and VI (DP6) were awarded to Chun Wo ¡V Leader
JV (Contract HK/2009/01) as part of the Project works by the Civil Engineering
and Development Department (CEDD). The Further Environmental Permit
FEP-02/356/2009 was issued on 24 March 2010 and surrendered on 19 April 2018.
iv.
The
designated project work III (DP3) and V (DP5) were awarded to Chun Wo ¡V CRGL JV
(Contract HK/2009/02) as part of the Project works by CEDD. The Further
Environmental Permit FEP-03/356/2009 was issued on 24 March 2010 and
surrendered on 27
March 2020.
v.
The
designated project work III (DP3) was awarded to China State Construction
Engineering (HK) Ltd (Contract HY/2009/15) as part of the Project works by HyD.
The Further Environmental Permit FEP-04/356/2009 was issued on 22 November 2010
and surrendered on 12 May 2021.
vi.
The
designated project work III (DP3) was awarded to Gammon ¡V Leader JV (Contract
HK/2010/06) as part of the Project works by CEDD. The Further Environmental
Permit FEP-05/356/2009 was issued on 24 March 2011and surrendered on 03 October
2014.
vii.
The
designated project work III (DP3) was awarded to China State ¡V Leader JV
(Contract HK/2012/08) as part of the Project works by CEDD. The Further
Environmental Permit FEP-06/356/2009 was issued on 05 March 2013. Contractor
China State ¡V Leader JV of Contract HK/2012/08 later renamed as China State ¡V
Build King JV. The Further Environmental Permit FEP-08/356/2009 was issued on 1
August 2016 for China State ¡V Build King JV. The Further Environmental Permits
FEP-06/356/2009 and FEP-08/356/2009 were surrendered on 15 October 2019.
viii.
The
designated project work III (DP3) was awarded to China State (Contract HY/2010/08)
as part of the Project works by HyD. The Further Environmental Permit
FEP-07/356/2009 was issued on 26 July 2013 and surrendered on 17 May 2021.
ix.
The
principle construction activities undertaken during the monitoring period
included as follows:
¡P Permanent
and temporary reclamation works including associated dredging works in Wan Chai
Development Phase II (WDII) area (DP3)
¡P Wan
Chai East Sewage Outfall (DP5)
¡P Dredging
for the Cross-harbour Water Mains from Wan Chai to Tsim Sha Tsui (DP6)
x.
Contract
HY/2009/19 was responsible for marine piling works, box culvert construction
and seawall reinstatement in North Point Reclamation area under EP-356/2009.
xi.
Summaries of
construction works for individual contracts undertaken during
the construction period are shown as follows:
Contract HY/2009/11 - Wan Chai
Development Phase II and Central ¡V Wan Chai Bypass ¡V
North Point Reclamation
¡P Permanent
reclamation
works;
¡P Dredging;
¡P Seawall construction;
¡P Stormwater
outfall diversion, stormwater drainage
modification/improvement; and
¡P Translocation
of corals at Ex-Wan Chai Public Cargoes Working Area (Ex-PCWA) Basin and North
Point.
Contract HY/2009/19 - Central-Wanchai
Bypass Tunnel (North Point Section) and Island Eastern Corridor Link
¡P Marine
piling works;
¡P Box
culvert construction; and
¡P Seawall
reinstatement.
Contract HK/2009/01 - Wan Chai Development Phase II ¡V Central
¡VWanchai Bypass at Hong Kong Convention and
Exhibition Centre
¡P Permanent
reclamation works;
¡P
Dredging; and
¡P Construction of new cross
harbour water mains.
Contract HK/2009/02 - Wan Chai Development Phase II ¡V Central ¡V Wan
Chai Bypass at
WanChai East
¡P Permanent and temporary reclamation works;
¡P Dredging; and
¡P construction of a new
sewage outfall
Contract HY/2009/15 - Central-Wanchai Bypass ¡V Tunnel (Causeway
Bay Typhoon Shelter
Section)
¡P Temporary
reclamation works;
¡P Dredging;
¡P Construction of the Trunk
Road; and
¡P Reinstatement
of the ex-PCWA basin and the Causeway
Bay Typhoon Shelter (CBTS).
Contract HK/2010/06 - Wan Chai Development Phase II-Central-Wan
Chai Bypass
over MTR Tsuen Wan Line
¡P Installation of marine bored piles; and
¡P Dredging.
Contract HK/2012/08 - Wan Chai Development Phase II
Central-Wan Chai Bypass at Wan Chai West
¡P Permanent reclamation works;
¡P Dredging;
¡P Seawall
construction;
¡P Watermains
laying; and
¡P Demolition
of existing Expo Drive West Bridge.
Contract HY/2010/08 - Central- Wanchai Bypass Tunnel ¡V Tunnel (Slip
Road 8)
¡P Temporary
reclamation works;
¡P Dredging;
¡P Construction
of the Trunk Road; and
¡P Reinstatement
of CBTS.
Environmental Monitoring and Audit Works
i.
Summary table of the impact monitoring activities is listed below:
Air Quality Monitoring Station ID |
Commencement Date |
Suspension Date |
CMA1b - Harbour Grand Hotel Boundary Wall |
11 August 2010 |
23 May 2019 |
11
August 2010 |
23
May 2019 |
|
CMA3a - CWB PRE Site Office |
15
March 2011 |
|
CMA4a - Society for the Prevention of Cruelty to Animals |
29
December 2010 |
30
September 2019 |
CMA5a / CMA5b - Children Playgrounds
opposite to Pedestrian Plaza / Pedestrian Plaza |
01
April 2011 |
26
February 2019 |
CMA6a - WDII PRE Site Office |
01 April 2011 |
26 February 2019 |
Noise Monitoring Station ID |
Commencement Date |
Suspension Date |
M1a ¡V Footbridge for Ex-Harbour
Road Sports Centre |
06 July 2010 |
30 September 2019 |
M2b ¡V Noon Gun Area |
10
November 2010 |
22 March 2021 |
M3a ¡V Tung Lo Wan Fire Station |
10
November 2010 |
22 March 2021 |
M4b ¡V Victoria Centre |
23
March 2010 |
01
June 2019 |
M5b ¡V City Garden |
23
March 2010 |
01
June 2019 |
M6 ¡V HK Baptist Church Henrietta Secondary School |
28 February 2012 |
01 June 2019 |
RTN1 ¡V FEHD Hong Kong Transport
Section Whitefield Depot |
05 October 2010 |
01 November 2012 |
RTN2 / RTN2a ¡V Oil Street
Community Liaison Centre / Electric Centre |
05 October 2010 |
01 January 2016 |
Water Quality Monitoring Station ID |
Commencement Date |
Suspension Date |
WSD7 ¡V Kowloon South |
28 July 2010 |
28 April 2012 |
WSD9 ¡V Tai Wan |
19 March 2010 |
09 September 2014 |
WSD10 ¡V Cha Kwo Ling |
19 March 2010 |
07 February 2012 |
WSD15 ¡V Sai Wan Ho |
19 March 2010 |
07 February 2012 |
WSD17 ¡V Quarry Bay |
19 March 2010 |
09 September 2014 |
WSD19 ¡V Sheung Wan |
28 July 2010 |
15 February 2019 |
WSD20 ¡V Kennedy Town |
28 July 2010 |
28 April 2012 |
WSD21 ¡V Wan Chai |
08 July 2010 |
10 March 2014 |
C1 ¡V HKCEC Extension |
08 July 2010 |
27 October 2019 |
C2 ¡V Telecom House |
30 July 2010 |
22 April 2013 |
C3 ¡V HKCEC Phase I |
30 July 2010 |
22 April 2013 |
C4e ¡V Wan Chai Tower and Great
Eagle Centre (Eastern) |
30 July 2010 |
22 April 2013 |
C4w ¡V Wan Chai Tower and Great
Eagle Centre (Western) |
30 July 2010 |
22 April 2013 |
C5e ¡V Sun Hung Kai Centre
(Eastern) |
28 July 2010 |
26 July 2013 |
C5w ¡V Sun Hung Kai Centre
(Western) |
28 July 2010 |
26 July 2013 |
C6 ¡V Excelsior Hotel |
09 November 2010 |
26 May 2011 |
C7 ¡V Windsor House |
09 November 2010 |
20 April 2021 |
C8 ¡V City Garden |
19 March 2010 |
30 March 2013 |
C9 ¡V Provident Garden |
19 March 2010 |
30 March 2013 |
P1 ¡V HKCEC Phase I |
24 April 2013 |
16 February 2019 |
P3 ¡V The Academy of performing
Arts |
24 April 2013 |
16 February 2019 |
P4 ¡V Shui on Centre |
24 April 2013 |
16 February 2019 |
P5 ¡V Government Buildings
(Wanchai Tower / Revenue Tower / Immigration Tower) |
24 April 2013 |
16 February 2019 |
Water Quality Monitoring Station ID |
Commencement Date |
Suspension Date |
RW21-P789 ¡V Great Eagle Centre/
Sun Hung Kai Centre/ WSD Wanchai salt water intake / China Resources Building |
01 August 2013 |
27 October 2019 |
Ex-PCWA
SE - South-eastern corners of ex-Public Cargo Works Area |
13 January 2011 |
07 March 2017 |
Ex-PCWA
SW - South-western corners of ex-Public Cargo Works Area |
13 January 2011 |
07 March 2017 |
Odour Patrol
ii.
Odour patrol was conducted according to EM&A requirement during the
reporting.
iii.
The construction phase odour patrol was commenced in 2011 and completed
in 2017.
iv.
The operation phase odour patrol was commenced in 2019 and completed in
2021.
Waste Management
v.
Wastes generated from this Project include inert construction and
demolition (C&D) materials
and non-inert C&D materials. Details of waste management data is presented
in Section 4.4.
Complaints, Notifications of Summons and Successful
Prosecutions
vi.
Total
51 environmental complaints were received in the reporting period. No
notification of summons and successful prosecutions were received in the
reporting period. The summary of complaint received shall refer to Section 6.
Site Inspections and Audit
vii.
The
weekly site inspections were conducted according to EM&A manual requirement
throughout the construction period. No non-compliance
from the site audits was recorded throughout the reporting period.
Conclusion
viii.
The
EM&A programme were found to be effective in monitoring impacts arising
from the Project. The findings of the environmental monitoring program suggest
that no adverse impacts on sensitive receivers at the designated monitoring
locations were brought about the Project.
ix.
In
conclusion the Project was environmentally acceptable in terms of air, water
quality and noise impact.
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-01/356/2009, FEP-02/356/2009, FEP-03/356/2009,
FEP-04/356/2009, FEP-05/356/2009, FEP-06/356/2009, FEP-07/356/2009 and FEP-08/356/2009
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 audit findings during
the period of March 2010 to April 2022.
Section 1 Introduction ¡V details the scope and structure of the report.
Section 2 Project Background ¡V summarizes background and scope of the project, site description,
project organization and contact details of key personnel during the reporting
period.
Section 3 Monitoring Requirements ¡V summarizes all monitoring parameters, monitoring
methodology and equipment, monitoring locations, monitoring frequency, criteria
and respective event and action plan and monitoring programmes.
Section 4 Monitoring Results ¡V summarizes the monitoring results and exceedances recorded
throughout the monitoring programme.
Section 5 Environmental Site
Audit ¡V summarizes
the findings of site inspections undertaken during the construction period,
with a
review of any
relevant follow-up actions during the construction period.
Section 6 Complaints,
Notification of summons and Prosecution ¡V summarizes the cumulative statistics on complaints, notification of summons and
prosecution.
Section 7 Comments,
Conclusions and Recommendations
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:
¡P 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
¡P
Reprovisioning
/ protection of the existing facilities and structures affected by the land
formation works mentioned above
¡P
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
¡P
Upgrading
of hinterland storm water drainage system and sewerage system, which would be
rendered insufficient by the land formation works mentioned above
¡P
Provision
of the ground level roads, flyovers, footbridges, necessary transport
facilities and the associated utility services
¡P
Construction
of the new waterfront promenade, landscape works and the associated utility
services
¡P 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 |
DP3
|
Reclamation
works including associated dredging works |
Schedule
2, Part I, C.1 and C.12 |
DP5
|
Wan
Chai East Sewage Outfall |
Schedule
2, Part I, F.5 and F.6 |
DP6
|
Dredging
for the Cross-harbour Water Mains from Wan Chai to Tsim Sha Tsui |
Schedule
2, Part I, C.12 |
2.3.1.
Due to the multi-contract nature of the Project, there were a number of
contracts sub-dividing the whole works area into different work areas. 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 |
HY/2009/11 |
Wan
Chai Development Phase II and Central ¡V Wan Chai Bypass ¡V North Point
Reclamation |
DP3 |
17
March 2010 |
Wan
Chai Development Phase II ¡V Central ¡VWanchai Bypass at Hong Kong Convention
and Exhibition Centre |
DP3,
DP6 |
23
July 2010 |
|
HK/2009/02 |
Wan
Chai Development Phase II ¡V Central ¡V Wan Chai Bypass at WanChai East |
DP3, DP5 |
5
July 2010 |
HY/2009/15 |
Central-Wanchai
Bypass ¡V Tunnel (Causeway Bay Typhoon Shelter Section) |
DP3 |
10
November 2010 |
HK/2010/06 |
Wan
Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen Wan Line |
DP3 |
22
March 2011 |
HY/2009/19 |
Central-Wanchai
Bypass Tunnel (North Point Section)and Island Eastern Corridor Link |
/ |
28
January 2012 |
HY/2010/08 |
Central- Wanchai Bypass Tunnel ¡V Tunnel (Slip
Road 8) |
DP3 |
21
March 2013 |
HK/2012/08 |
Wan Chai Development Phase II Central- Wan Chai Bypass at Wan Chai West |
DP3 |
10
March 2014 |
¡P
Permanent and temporary
reclamation works including associated dredging works in Wan Chai Development Phase
II area
¡P
Construct a new sewage outfall
and upgrade the existing Wan Chai East sewage outfall
¡P
Dredging for the Cross-harbour
Water Mains from Wan Chai to Tsim Sha Tsui (DP6)
2.5.1.
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.
2.5.2.
The proposed project organization and 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 |
Chief Resident Engineer |
Ms. Lydia Lee |
3762 2760 |
2142 5577 |
|
China Harbour- CRBC Joint Venture |
Contractor under HY/2009/11 |
Project Director |
Mr. Cho Yu Fun |
3157 1086 |
3157 1085 |
Site Agent |
Mr. Daniel Cheung |
3157 1086 |
|||
Chun Wo ¡V Leader Joint Venture |
Contractor under HK/2009/01 |
Project Manager |
Mr. Simon Liu |
9304 8355 |
2587 1878 |
Chun Wo ¡V CRGL Joint Venture |
Contractor under HK/2009/02 |
Project Manager |
Mr. David Yan |
9106 3890 |
2827 9996 |
China State Construction Engineering (HK) Ltd. |
Contractor under HY/2009/15 |
Project Director |
Mr. Chris Leung |
3557 6393 |
2566 2192 |
Site Agent |
Mr. Patrick Ho |
3557 6405 |
|||
Contractor under HY/2010/08 |
Project
Director |
Mr.
Chris Leung |
3467
4299 |
2566
8061 |
|
Site Agent |
Mr.
Danny Chan |
9232
4754 |
|||
Chun Wo - CRGL - MBEC Joint Venture |
Contractor under Contract no. HY/2009/19 |
Project Manager |
Mr. William Leung |
3758 8879 |
3757 8901 |
Site Agent |
Mr. William Luk |
3758 6868 |
|||
Gammon -Leader JV |
Contractor under HK/2010/06 |
Project Manager |
Mr. Paul Lui |
9095 7922 |
2529 2880 |
Site Agent |
Mr. Eric Yip |
2529 2068 |
|||
China State- Build King Joint Venture |
Contractor under HK/2012/08 |
Project
Director |
Mr. C. N. Lai |
9106 5806 |
2877 1522 |
Site
Agent |
Mr. George Cheung |
9268 1918 |
|||
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 |
Noise Monitoring
Stations
3.1.1.
The noise monitoring stations for the Project are listed in Table 3.1 and shown in Figure 3.1. Appendix 3.1 shows the established
Action/Limit Levels for the monitoring works.
Table 3.1 Noise
Monitoring Station
Station |
Description |
M1a1 |
Footbridge for Ex-Harbour Road Sports Centre |
M2b |
Noon
Gun Area |
M3a |
Tung
Lo Wan Fire Station |
M4b |
Victoria Centre |
M5b |
City Garden |
M64 |
HK
Baptist Church Henrietta Secondary School |
RTN12 |
FEHD
Hong Kong Transport Section Whitefield Depot |
RTN2/RTN2a3 |
Electric
Centre |
Remark 1: With respect to the demolition of
Ex-Harbour Road Sports Centre, the respective noise monitoring station M1a ¡V
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.
Remark 2: Real-time on-site monitoring systems of
the noise level around the works sites at North Point and Tin Hau area were
established during the construction period.
Remark 3: Real-time noise monitoring at RTN2-Oil
Street Community Liaison Centre had been relocated to City Garden Electric
Centre (RTN2a- Electric Centre) on 5 Oct 2012, which was a representative of noise
sensitive receiver- City Garden.
Remark 4: The major work activities under Contract
no. HY/2009/11 under EP-356/2009 was substantial completed on 04 January 2012
and the construction site was handed over to Contract no. HY/2009/19 on 31
December 2011. Noise monitoring station M6 was associated with Contract no.
HY/2009/19 for the marine piling works, box culvert construction and seawall
reinstatement which were inside EP-356/2009 boundary.
Noise Monitoring
Parameters, Frequency and Duration
3.1.2.
The construction noise level was
measured in terms of the A-weighted equivalent continuous sound pressure level
(Leq). Leq (30 minutes) was 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) was employed for
comparison with the Noise Control Ordinance (NCO) criteria. Supplementary information for
data auditing, statistical results such as L10 and L90 were also obtained for
reference.
3.1.3.
Noise monitoring was carried out at all the designated monitoring
stations. The monitoring frequency depended 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 were
underway:
¡P
One
set of measurements between 0700 and 1900 hours on normal weekdays.
3.1.4.
If construction works were extended to include works during the hours of
1900 ¡V 0700 as well as public holidays and Sundays, additional weekly impact
monitoring was carried out during respective restricted hour¡¦s periods.
Monitoring Equipment
3.1.5.
As referred to 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 were used
for carrying out the noise monitoring. Immediately prior to and following each
noise measurement the accuracy of the sound level meter was checked using an
acoustic calibrator generating a known sound pressure level at a known
frequency. Measurements were accepted as valid only if the calibration level
from before and after the noise measurement agree to within 1.0 dB.
3.1.6.
Noise measurements was not carried out in fog, rain, wind with a steady
speed exceeding 5 m/s or wind with gusts exceeding 10 m/s. The wind speed was
checked with a portable wind speed meter capable of measuring the wind speed in
m/s.
Air Quality
Monitoring Stations
3.2.1.
The air monitoring stations for the Project are listed in Table 3.2 and shown in Figure 3.1. Appendix 3.1 shows the
established Action/Limit Levels for the monitoring works.
Table 3.2 Air Monitoring Station
Station ID |
Monitoring Location |
Description |
CMA1b1 |
Harbour
Grand Hotel Boundary Wall |
North Point |
CMA2a |
Causeway
Bay Community Centre |
Causeway Bay |
CMA3a2 |
CWB PRE Site Office |
Causeway Bay |
CMA4a |
Society
for the Prevention of Cruelty to Animals |
Wan Chai |
CMA5b3 |
Pedestrian
Plaza |
Wan Chai |
CMA6a |
WDII PRE Site Office |
Wan Chai |
Remarks 1: Due to
extension of site boundary by Contractor HY/2009/19, location of CMA1b at Oil
Street Community Liaison Centre has been finely adjusted on 21 April 2012 and
the ID was updated as Oil Street Site Office from April 2013. CMA1b was
adjusted from Oil Street site office to Harbour Grand Hotel Boundary Wall on
June 2017 w.r.t demolition of Oil Street Site Office.
Remarks 2: As per
the ENPC meeting in March 2011, the monitoring stations CMA3a ¡V Future CWB site
office at Wanchai Waterfront Promenade was renamed.
Remarks 3: Station
CMA5a at Children Playgrounds opposite to the Pedestrian Plaza was relocated to
the Pedestrian Plaza in December 2014. The station reference and location ID
CMA5a was updated as CMA5b and Pedestrian Plaza respectively. The proposal for
relocation was submitted to EPD by CEDD on 24 November 2014 and approved by EPD
on 10 December 2014.
Air Monitoring
Parameters, Frequency and Duration
3.2.2.
One-hour and 24-hour TSP levels were measured to indicate the impacts of
construction dust on air quality. The 24-hour TSP level was 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.
3.2.3.
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., were recorded down in
detail.
3.2.4.
For regular impact monitoring, the sampling frequency of at least once
in every six-days, was 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 was undertaken when the highest dust impact
occurred.
Sampling Procedure
and Monitoring Equipment
3.2.5.
High volume samplers (HVSs) in compliance with the following
specifications were used for carrying out the 1-hour and 24-hour TSP
monitoring:
¡P
0.6
¡V 1.7 m3 per minute adjustable flow range;
¡P
equipped
with a timing / control device with +/- 5 minutes accuracy for 24 hours
operation;
¡P
installed
with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
¡P
capable
of providing a minimum exposed area of 406 cm2;
¡P
flow
control accuracy: +/- 2.5% deviation over 24-hour sampling period;
¡P
equipped
with a shelter to protect the filter and sampler;
¡P
incorporated
with an electronic mass flow rate controller or other equivalent devices;
¡P
equipped
with a flow recorder for continuous monitoring;
¡P
provided
with a peaked roof inlet;
¡P
incorporated
with a manometer;
¡P
able
to hold and seal the filter paper to the sampler housing at horizontal
position;
¡P
easily
changeable filter; and
¡P capable of operating continuously for a 24-hour
period.
3.2.6.
Initial calibration of dust monitoring equipment was conducted upon
installation and thereafter at bi-monthly intervals. The transfer standard was
traceable to the internationally recognized primary standard and be calibrated
annually. The concern parties such as IEC was properly document the calibration
data for future reference. All the data was converted into standard temperature
and pressure condition.
Laboratory
Measurement / Analysis
3.2.7.
A clean laboratory with constant temperature and humidity control, and
equipped with necessary measuring and conditioning instruments to handle the
dust samples collected, was available for sample analysis, and equipment
calibration and maintenance. The laboratory was HOKLAS accredited.
3.2.8.
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 demonstrated to the satisfaction of the
ER and IEC. IEC was regularly audit to the measurement performed by the
laboratory to ensure the accuracy of measurement results.
3.2.9.
Filter paper of size 8¡¨ x 10¡¨ was labelled before sampling. It was a
clean filter paper with no pinholes, and conditioned in a humidity-controlled
chamber for over 24-hours and pre-weighed before used for the sampling.
3.2.10.
After sampling, the filter paper loaded with dust was kept in a clean
and tightly sealed plastic bag. The filter paper was then 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 was regularly calibrated against a traceable standard.
3.2.11.
All the collected samples were kept in a good condition for 6 months
before disposal.
Monitoring for Odour
Patrol
3.2.12.
Odour patrols along the shorelines of Causeway Bay Typhoon Shelter and
ex-Wan Chai Public Cargo Working Area when there was temporary reclamation in
Causeway Bay Typhoon Shelter and in the ex-Wan Chai Public Cargo Working Area,
or when there was dredging of the odorous sediment and slime at the
south-western corner of the Causeway Bay Typhoon Shelter. The operational odour
monitoring was carried out for 3 years period.
3.2.13.
Odour patrols were carried out at bi-weekly intervals during July,
August and September by a qualified person of the ET who was:
¡P
at
least 16 years of age;
¡P
free
from any respiratory illnesses; and
¡P
not
allowed to smoke, eat, drink (except water) or use chewing gum or sweets 30 min
before and during odour patrol.
3.2.14.
Odour patrol was conducted by independent trained personnel / competent
persons patrolling and sniffing around the shore as shown in Figure 3.1 to detect any odour at the concerned hours.
3.2.15.
The qualified person used 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 was identified.
3.2.16.
The perceived odour intensity was divided into 5 levels which ranked in
the descending order as follows:
¡P
0 ¡V
Not detected. No odour perceived or an odour so weak that it cannot be easily characterized
or described;
¡P
1 ¡V
Slight Identifiable odour, and slight chance to have odour nuisance;
¡P
2 ¡V
Moderate Identifiable odour, and moderate chance to have odour nuisance;
¡P
3 ¡V
Strong Identifiable, likely to have odour nuisance;
¡P
4 ¡V
Extreme Severe odour, and unacceptable odour level.
3.2.17.
The findings including odour intensity, odour nature and possible odour
sources, and also the local wind speed and direction at each location were
recorded. In addition, some relevant meteorological and tidal data such as
daily average temperature, and daily average humidity, on that surveyed day
were obtained from the Hong Kong Observatory Station for reference. The Action
and Limit levels for odour patrol are shown in Appendix 3.1.
3.2.18.
The qualified odour patrol member had individual n-butanol thresholds
complied with the requirement of European Standard Method of Air Quality ¡V
Determination of Odour Concentration by Dynamic Olfactometry (EN13725) in the
range of 20 to 80 ppb.
Water Quality
Monitoring Stations
3.3.1.
The water quality monitoring stations of the Project are listed in Table 3.3 and shown in Figure 3.1. Appendix 3.1 shows the
established Action/Limit Levels for the monitoring works.
Table 3.3 Marine Water Quality
Stations for Water Quality Monitoring
Station Ref. |
Location |
Easting |
Northing |
WSD Salt Water Intake |
|||
WSD7 |
Kowloon South |
834150.0 |
818300.3 |
WSD9 |
Tai Wan |
837921.0 |
818330.0 |
WSD10 |
Cha Kwo Ling |
841900.9 |
817700.1 |
WSD15 |
Sai Wan Ho |
841110.4 |
816450.1 |
WSD17 |
Quarry Bay |
839790.3 |
817032.2 |
WSD19 |
Sheung Wan |
833415.0 |
816771.0 |
WSD20 |
Kennedy Town |
830750.6 |
816030.3 |
WSD21 |
Wan Chai |
836220.8 |
815940.1 |
Cooling Water Intake |
|||
C1 |
HKCEC Extension |
835885.6 |
816223.0 |
C2 |
Telecom House / APA /
SOC |
835647.9 |
815864.4 |
C3 |
HKCEC Phase I |
835836.2 |
815910.0 |
C4e |
Great Eagle Centre |
835932.8 |
815888.2 |
C4w |
Wan Chai Tower |
835629.8 |
815889.2 |
C5e |
Sun Hung Kai Centre
(Eastern) |
836250.1 |
815932.2 |
C5w |
Sun Hung Kai Centre
(Western) |
836248.1 |
815933.2 |
C6 |
Excelsior Hotel |
837009.6 |
815999.3 |
C7 |
Windsor House |
837193.7 |
816150.0 |
C8 |
City Garden |
837970.6 |
816957.3 |
C9 |
Provident Garden |
838355.0 |
817116.6 |
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 |
Remark 2: Due to the
significant location difference, the previous water quality monitoring stations
were considered to be invalid to represent the water quality at relocated
cooling water intake. In addition, the site areas at the previous water quality
monitoring stations were changed and affected by construction activities and no
longer available for water quality monitoring. Under such circumstances, the
water quality monitoring stations shall be relocated to the respective
relocated intake locations. The summary of relocation of water quality
monitoring stations are shown in below table 3.4.
Table 3.4. Summary of relocation
of water quality monitoring stations
Previous Water Quality
Monitoring stations |
Respective relocated water
quality monitoring stations |
Remarks |
C2 |
P3,
P4 |
After
reviewing the cooling intake pump station status with WDII RSS and IEC, the
water quality monitoring at related water quality monitoring stations P1, P3,
P4 and P5 was commenced from 24 April 2013 |
C3 |
P1 |
|
C4w |
P5 |
|
C4e |
RW21-P789 |
With respect to the switching
over of the cooling water intake to re-provisioned cooling water intake, the
water quality monitoring at relocated water quality monitoring station
RW21-P789 was commenced from 29 July 2013. |
C5e |
||
C5w |
||
WSD21 |
Water Quality
Parameters
3.3.2.
Monitoring of dissolved oxygen (DO), turbidity and suspended solids (SS)
were carried out at WSD flushing water intakes and cooling water intakes. DO
and Turbidity were measured in-situ while SS was determined in laboratory.
3.3.3.
In association with the water quality parameters, other relevant data
were also 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
3.3.4.
The interval between two sets of monitoring were less than 36 hours
except where there were exceedances of Action and/or Limit Levels, in which
case the monitoring frequency would be increased. Table 3.5 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 was
not less than 0.5 m.
Table 3.5 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 was not less than 0.5m.
2.
Turbidity was measured in situ
whereas SS was determined by laboratory.
Enhanced Water
Quality Monitoring in the ex-Wan Chai Public Cargo Working Area and the
Causeway Bay Typhoon Shelter
3.3.5.
The enhanced water quality monitoring and audit programme was 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.
3.3.6.
Dissolved oxygen monitoring at the intakes C6 and C7 in Causeway Bay
Typhoon Shelter when there was 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 listed in Table 3.6
and shown in Figure
3.1.
Table 3.6 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 |
3.3.7.
The monitoring of dissolved oxygen were 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).
4.0.1.
The Event Action Plan for construction noise, air quality and water
quality are presented in Appendix 4.1.
Table 4.1 Summary of noise limit level
exceedances
Year |
Limit level |
M1a |
M2b |
M3a |
M4b |
M5b |
M6 |
Total |
2010 |
Non-Project
related |
0 |
0 |
0 |
2 |
2 |
0 |
4 |
Project
related |
0 |
0 |
0 |
0 |
0 |
0 |
||
2011 |
Non-Project
related |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Project
related |
0 |
0 |
0 |
0 |
0 |
0 |
||
2012 |
Non-Project
related |
0 |
0 |
0 |
0 |
0 |
19 |
19 |
Project
related |
0 |
0 |
0 |
0 |
0 |
0 |
||
2013 |
Non-Project
related |
2 |
0 |
0 |
0 |
0 |
35 |
39 |
Project
related |
0 |
0 |
0 |
0 |
0 |
2 |
||
2014 |
Non-Project
related |
0 |
0 |
0 |
0 |
0 |
19 |
22 |
Project
related |
0 |
2 |
0 |
0 |
0 |
1 |
||
2015 |
Non-Project
related |
5 |
0 |
0 |
0 |
0 |
6 |
13 |
Project
related |
0 |
0 |
0 |
0 |
0 |
2 |
||
2016 |
Non-Project
related |
17 |
0 |
0 |
0 |
0 |
8 |
25 |
Project
related |
0 |
0 |
0 |
0 |
0 |
0 |
||
2017 |
Non-Project
related |
14 |
0 |
0 |
0 |
0 |
12 |
31 |
Project
related |
3 |
0 |
0 |
0 |
1 |
1 |
||
2018 |
Non-Project
related |
4 |
0 |
0 |
0 |
0 |
3 |
9 |
Project
related |
1 |
0 |
0 |
0 |
0 |
1 |
||
2019 |
Non-Project
related |
0 |
0 |
0 |
2 |
0 |
6 |
8 |
Project
related |
0 |
0 |
0 |
0 |
0 |
0 |
||
2020 |