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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, Quarterly Environmental Monitoring
and Audit Report
- March 2022 to April 2022 -
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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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CHECKED by: |
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Raymond Dai Environmental Team Leader |
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DATE: |
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02 June 2022 |
2.2 Scope of the Project and Site
Description
2.3 Division
of the Project Responsibility
2.4 Project
Organization and Contact Personnel
2.5 Principal Work and Activities
5.5. Review of the Reasons for and the
Implications of Non-compliance.
6. Complaints,
Notification of Summons and Prosecution
7. Cumulative
Construction Impact due to the Concurrent Projects
lIST OF TABLES
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 3.1 Noise
Monitoring Stations
Table 3.2 Air
Monitoring Stations
Table 3.3 Marine
Water Quality Stations for Water Quality Monitoring
Table 3.4 Marine
Water Quality Monitoring Frequency and Parameters
Table 3.5 Marine Water Quality Stations for Enhanced
Water Quality Monitoring
Table 4.1 Noise Monitoring Stations for
Contract Nos. HY/2009/15 and HY/2010/08
Table 4.2
Air Monitoring Stations for
Contract Nos. HY/2009/15 and HY/2010/08
Table 6.1 Cumulative
Statistics on Complaints
Table 6.2 Cumulative
Statistics on Successful Prosecutions
lIST OF FIGUREs
Figure 2.2 Project Organization Chart
Figure
3.1 Locations
of Environmental Monitoring Stations
lIST OF APPENDIces
Appendix 2.1 Environmental
Mitigation Implementation Schedule
Appendix 3.1 Action
and Limit Level
Appendix 5.1 Event
Action Plans
Construction Activities for the Reported Period
Noise Monitoring
Air Quality Monitoring
Water Quality Monitoring
Complaints, Notifications of Summons and Successful
Prosecutions
1.1.1.
Lam
Geotechnics Limited (LGL) has been appointed to work as the Environmental Team
(ET) under Environmental Permit no. EP-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 10.4 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
during the period from 27th February to 7th
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 locations, monitoring frequency, duration and action plan.
Section 4 Monitoring Results ¡V summarizes the monitoring results obtained in the
reporting period.
Section 5 Compliance Audit ¡V summarizes the auditing
of monitoring results, all exceedances environmental parameters.
Section 6 Complaints,
Notification of summons and Prosecution ¡V summarizes the cumulative statistics on complaints,
notification of summons and prosecution
Section 7 Cumulative
Construction Impact due to the Concurrent Projects ¡V summarizes
the relevant cumulative construction impact due to the concurrent activities of
the concurrent Projects.
Section 8 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:
¡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 |
Reason for inclusion |
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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 |
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DP2 |
Road P2 and other roads which are classified as primary/district
distributor roads |
Schedule 2, Part I, A.1 |
Primary / district distributor roads |
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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 |
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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 Table2.2.
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 ¡V Central ¡VWanchai Bypass at Hong Kong
Convention and Exhibition Centre |
DP3, DP6 |
23 July 2010 (Completed) |
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DP1, DP2 |
25 August 2011 (Completed) |
||
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HK/2009/02 |
Wan Chai Development Phase II ¡V Central ¡V Wan Chai Bypass at WanChai
East |
DP3, DP5 |
5 July 2010 (Completed) |
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DP1 |
26 April 2011 (Completed) |
||
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HY/2009/11 |
Wan Chai Development Phase II and Central ¡V Wan Chai Bypass ¡V North
Point Reclamation |
DP3 |
17 March 2010 (Completed) |
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HY/2009/15 |
Central-Wanchai Bypass ¡V Tunnel (Causeway Bay Typhoon Shelter Section) |
DP3 |
10 November 2010 (Completed) |
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DP1 |
13 July 2011 (Completed) |
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HK/2010/06 |
Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen
Wan Line |
DP3 |
22 March 2011 (Completed) |
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04/HY/2006 |
Reconstruction of Bus Terminus near Man Yiu Street and Man Kwong
Street |
DP1 |
September 2010 (Completed) |
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HY/2009/17 |
Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced
piling works. |
DP1 |
5 October 2010 (Completed) |
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HY/2009/18 |
Central - Wan Chai Bypass (CWB) ¡V Central Interchange |
DP1 |
21 April 2011 (Completed) |
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HY/2009/19 |
Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link |
DP1 |
24 March 2011 |
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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
¡V Tunnel (Slip Road 8) |
DP1,DP2, DP3 |
21 March 2013 (Completed) |
|
HY/2011/08 |
Central-Wan Chai Bypass (CWB) ¡V
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 |
Chief
Resident Engineer |
Ms.
Lydia Lee |
3762 2760 |
2142 5577 |
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Ramboll Hong Kong Limited |
Independent
Environmental Checker (IEC) |
Independent Environmental Checker (IEC) |
Mr. David Yeung |
3465 2888 |
3465 2899 |
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Lam Geotechnics Limited |
Environmental Team
(ET) |
Environmental Team Leader (ETL) |
Mr. Raymond Dai |
2882 3939 |
2882 3331 |
2.5.1. 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.
2.5.2.
Implementation
status of the recommended mitigation measures during this reporting period is
presented in Appendix 2.1.
Noise Monitoring Stations
3.1.1. The noise monitoring stations for the Project
are listed and shown in Table 3.1 and Figure 3.1. Appendix 3.1 shows the established Action/Limit
Levels for the monitoring works.
Table
3.1 Noise Monitoring Stations
|
Station |
Description |
|
M1a |
Footbridge
at Ex-Harbour Road Sports Centre* |
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M2b |
Noon Gun Area |
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M3a |
Tung Lo Wan Fire Station |
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M4b |
Victoria Centre |
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M5b |
City Garden |
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M6 |
HK Baptist Church Henrietta Secondary School |
Remarks*: 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 at Harbour Road Sports Centre
for noise monitoring.
Noise Monitoring Parameters, Frequency and Duration
3.1.2. 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.
3.1.3. 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:
¡P
one set of
measurements between 0700 and 1900 hours on normal weekdays.
3.1.4. If construction works are extended to include works
during the hours of 1900 ¡V 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.
3.1.5. Real time noise shall be carried out at the
designated monitoring stations. The following is an initial guide on the
regular monitoring frequency for each station on a 24 hours daily basis when
noise generating activities are underway:
¡P
One set of
measurements between 0700 and 1900 hours on normal weekdays.
¡P
One set of
measurements between 1900 and 2300 hours on normal weekdays and 0700 and 2300
hours on public holidays.
¡P
One set of
measurements between 2300 and 0700 hours on next day on everyday.
Monitoring Equipment
3.1.6. 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.
3.1.7. 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
3.2.1. The air monitoring stations for the Project are
listed and shown in Table 3.2 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the
monitoring works.
Table 3.2 Air Monitoring Stations
|
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 and CMA6a - Future AECOM site office at Work
Area were 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
3.2.2. 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.
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., shall be
recorded down in detail.
3.2.4. 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
3.2.5 High
volume samplers (HVSs) in compliance with the following specifications shall be
used for carrying out the 1-hour and 24-hour TSP monitoring:
¡P
0.6 - 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 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
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, shall be available for sample analysis, and equipment calibration
and maintenance. The laboratory should be 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 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.
3.2.9 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.
3.2.10 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.
3.2.11 All the
collected samples shall be kept in a good condition for 6 months before
disposal.
impact 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 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:
¡P
be at least 16 years
of age;
¡P
be free from any
respiratory illnesses; and
¡P
not be allowed to
smoke, eat, drink (except water) or use chewing gum or sweets 30 min
¡P
before and during
odour patrol
3.2.13 Odour patrol shall be 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 (afternoon is preferred for higher daily temperature).
3.2.14 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.
3.2.15 The perceived odour intensity is to be divided into
5 levels which are ranked in the descending order as follows:
¡P
0 - Not detected. No
odour perceived or an odour so weak that it cannot be easily characterized or
described;
¡P
1 - Slight
Identifiable odour, and slight chance to have odour nuisance;
¡P
2 - Moderate
Identifiable odour, and moderate chance to have odour nuisance;
¡P
3 - Strong
Identifiable, likely to have odour nuisance;
¡P
4 - Extreme Severe
odour, and unacceptable odour level.
3.2.16 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 3.1.
3.3.1. 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.
3.3.2. 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 ¡V September) will be effected and applied to the water quality
monitoring data from 30 April 2011.
Water
Quality Monitoring Stations
3.3.3. Water quality monitoring was undertaken at WSD salt
water intakes and cooling water intakes along the seafront of the Victoria
Harbour. The proposed water quality
monitoring stations of the Project are shown in Table 3.3 and 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 |
|||
|
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 |
836268.0 |
816020.0 |
Remarks: - The cessation of seawater intake
operation for C6 was confirmed on 17 May 2011, the water monitoring at C6 was
then terminated since 17 May 2011.
-
4-week post construction water quality
monitoring at WSD9, WSD10, WSD15, WSD17, C8 and C9 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 July 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.
-
4-week post construction water quality
monitoring at C7 was completed on 19 April 2021 and the water quality
monitoring at C7 was temporarily suspended from 20 April 2021.
Water Quality Parameters and frequency
3.3.4. 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.
3.3.5. 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.
3.3.6. 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 3.4 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
3.4 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
3.3.7. 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:
¡P
a dissolved oxygen
level in the range of 0-20 mg/l and 0-200% saturation
¡P
a temperature of
0-45 degree Celsius
3.3.8. 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).
3.3.9. 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
3.3.10 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
3.3.11 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
3.3.12 Water samples
for suspended solids measurement should be collected in high-density polythene
bottles, packed in ice (cooled to 4¢XC without being frozen), and delivered to
ALS Technichem (HK) Pty Ltd. as soon as possible after collection for analysis.
Water Depth Detector
3.3.13 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
3.3.14 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
3.3.15 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
3.3.16 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.
3.3.17 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.
3.3.18 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.
Laboratory Measurement / Analysis
3.3.19 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
3.3.20 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.
3.3.21 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
3.5 and Figure 3.1.
Table 3.5 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 |
3.3.22 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 less than 3m, only the
mid-depth will be monitored).
Daily SS Monitoring and 24
hours Turbidity Monitoring System
3.3.23 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.
3.3.24 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 shall 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
3.3.25 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.
3.3.26 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
3.3.27 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).
4.0.1. 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
3.1. The monitoring results are presented in according to the
Individual Contract(s).
4.0.2. According to
EP-364/2009/A Part B, ¡§Scale and Scope of Designated Project¡¨, Remarks (c),¡¨The
permanent and temporary reclamation and associated dredging works related to
the CWB construction are separately covered by environmental permit No.
EP-356/2009 issued to Civil Engineering and Development Department¡¨, and
marine piling works to be conducted by the Contractor of Contract no. HY/2009/19
from 28 January 2012 was considered to be governed under EP-356/2009. As the
construction site area of Contract no. HY/2009/11 had already been handed over
to Contract no. HY/2009/19, the designated noise, water and air quality
monitoring stations for Contract no. HY/2009/11 would be shared with Contract
no. HY/2009/19 from 28 January 2012.
4.0.3. 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 from November 2017. FEP-02/356/2009 under Contract
HK/2009/01 was surrendered on 19 April 2018.
4.0.4. 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 from November 2017.
4.0.5. 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 ¡V 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 period.
4.0.6. 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 ¡V 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 period.
4.0.7. 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.
4.0.8. 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.
4.0.9. 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
¡V Noon day gun area, M3a - Tung Lo Wan Fire Station and relevant air quality
monitoring stations namely CMA3a ¡V CWB PRE Site Office would be associated with
Contract HY/2009/15 in the June 2019 reporting month.
4.0.10. 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 June 2019 reporting month.
4.0.11. 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 ¡V CWB PRE Site Office, M2b ¡V Noon day gun area and M3a -
Tung Lo Wan Fire Station would be associated with Contract HY/2010/08 in the August
2019 reporting month.
4.0.12. 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 ¡V CWB PRE Site Office, CMA4a - SPCA, and M1a ¡V Footbridge for Ex-Harbour
Road Sports Centre would not be associated with Contract HK/2009/02 in November
2019 reporting month.
4.0.13. 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 ¡V Noon-day gun area and M3a ¡V Tung Lo
Wan Fire Station, air quality monitoring
stations CMA3a ¡V CWB PRE Site Office under EP-356/2009 were suspended from 22
March 2021. 4 week post-construction water quality monitoring at C7 was
commenced on 22 March 2021 and ended on 19 April 2021. 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.
4.1.1.
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 ¡V Noon-day gun area and M3a ¡V Tung Lo Wan Fire Station under
EP-356/2009 were suspended from 22 March 2021.
4.1.2.
The
proposed division of noise monitoring stations for Contract no. HY/2009/15 and
HY/2010/08 are summarized in Table 4.1 below:
Table 4.1
Noise
Monitoring Stations for Contract Nos. HY/2009/15 and HY/2010/08
|
Station |
Description |
|
M2b |
Noon-day gun
area |
|
M3a |
Tung Lo Wan
Fire Station |
4.2.1
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 ¡V CWB PRE Site Office under EP-356/2009 was suspended
from 22 March 2021.
4.2.2
The proposed division of air monitoring stations is summarized in Table
4.2 below.
Table
4.2 Air
Monitoring Stations for Contract Nos. HY/2009/15 and HY/2010/08
|
Station |
Description |
|
CMA3a |
CWB PRE Site Office |
4.3.1 Referring to CWB RSS confirmation, there
will be no marine work 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 and will be resumed when
recommence the seabed reinstatement work.
4.3.2 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.
4.3.3 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.
4.3.4 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.
5.0.1. The Event Action Plan for construction noise, air
quality and water quality are presented in Appendix 5.1.
5.1.1 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 ¡V Noon-day gun area and M3a ¡V Tung Lo Wan Fire Station under
EP-356/2009 were suspended from 22 March 2021.
5.2.1 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 ¡V CWB PRE Site Office under EP-356/2009 was suspended from 22
March 2021.
5.3.1
Referring to CWB RSS confirmation, there will be no marine work 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 and will be resumed when recommence the seabed reinstatement work.
5.3.2
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.
5.3.3
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.
5.3.4
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.
5.4.1
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.
5.5.1
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.
6.0.1. No environmental complaints, summons and
prosecution were received in the reporting period.
6.0.2.
The details of cumulative complaint
log and summary of complaints are presented in Appendix 6.1.
6.0.3. Cumulative statistic on complaints and successful
prosecutions are summarized in Table 6.1 and Table 6.2 respectively.
Table 6.1 Cumulative Statistics on Complaints
|
Reporting Period |
No. of Complaints |
|
Commencement works
(Mar 2010) to last reporting quarter |
51 |
|
March 2022 to
April 2022 |
0 |
|
Project-to-Date |
51 |
Table 6.2 Cumulative Statistics on Successful
Prosecutions
|
Environmental Parameters |
Cumulative No. Brought Forward |
No. of Successful Prosecutions this quarter (Offence Date) |
Cumulative No. Project-to-Date |
|
Air |
- |
0 |
0 |
|
Noise |
- |
0 |
0 |
|
Water |
- |
0 |
0 |
|
Waste |
- |
0 |
0 |
|
Total |
- |
0 |
0 |
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.
7.0.2. According
to the Final EM&A Report of Central Reclamation Phase III (CRIII) for
Contract HK 12/02, the major construction activities were completed by end of
January 2014 and no construction activities were undertaken thereafter and the
water quality monitoring was completed in October 2011 and no Project-related exceedance
was recorded for air and noise monitoring.
It can be concluded that cumulative construction impact due to the
concurrent activities of the current projects with the Central Reclamation
Phase III (CRIII) was insignificant.
7.0.3.
According
to the Final EM&A Report of EP-122/2002/E, the construction works at the
area of EP-122/2002/E were completed. 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 were bridge noise enclosure installation works, road
works, drainage works and soft landscape works 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.
8.0.1. 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.
8.0.2.
There was
no non-compliance from the site audits in this reporting quarter.
8.0.3.
Upon the completion of construction works of
Contract HY/2009/11, HK/2009/01, HK/2009/02, HY/2009/15, HK/2010/06,
HY/2009/19, HY/2010/08 and HK/2012/08, a proposal prepared by ET and verified
by IEC to cease the EM&A programme has been submitted to EPD on 9 February
2022. Approval for termination of EM&A programme from EPD was confirmed on
7 April 2022.