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Contract
No: HK/2011/07 Wanchai Development Phase II and Sampling, Field Measurement and
Testing Work (Stage 2) Environmental
Permit no. EP-356/2009, Further
Evironmental permit nos. fep-02/356/2009, FEP-03/356/2009, Fep-04/356/2009,
fep-05/356/2009, Fep-06/356/2009 and FEP-07/356/2009 Quarterly Environmental Monitoring
and Audit Report
- December 2013 to February 2014 -
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CLIENTS: |
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Civil
Engineering and Development Department and Highways
Department |
Lam Geotechnics
Limited 11/F Centre
Point Wanchai, H.K. 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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25 March 2014 |
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
4.2. Real Time Noise
Monitoring Results
5.2. Real-time Noise Monitoring
5.6. Review of the Reasons for and the Implications of
Non-compliance
5.7. Summary of action taken in the event of and follow-up
on non-compliance
6. Complaints,
Notification of Summons and Prosecution
7. Cumulative
Construction Impact due to the Concurrent Projects
lIST
OF TABLES
Table I Principal Work
Activities for Contract no. HK/2009/01
Table II Principal Work
Activities for Contract no. HK/2009/02
Table III Principal Work
Activities for Contract no. HY/2009/15
Table IV Principal Work Activities for Contract no. HK/2010/06
Table V Principal Work
Activities for Contract no. HY/2009/19
Table VI Principal Work Activities for Contract no. HK/2012/08
Table VII Principal Work Activities for Contract no. HY/2010/08
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 2.4 Principal Work Activities for Contract no. HK/2009/01
Table 2.5 Principal Work Activities for Contract no. HK/2009/02
Table 2.6 Principal Work
Activities for Contract no. HY/2009/15
Table 2.7 Principal Work Activities
for Contract no. HK/2010/06
Table 2.8 Principal Work
Activities for Contract no. HY/2009/19
Table 2.9I Principal Work Activities for Contract no. HK/2012/08
Table 2.10 Principal Work Activities for Contract no. HY/2010/08
Table 3.1 Noise Monitoring
Stations
Table 3.2 Real Time Noise
Monitoring Station
Table 3.3 Air Monitoring
Stations
Table 3.4 Marine Water Quality
Stations for Water Quality Monitoring
Table 3.5 Marine Water Quality
Monitoring Frequency and Parameters
Table
3.6 Marine Water Quality Stations for Enhanced Water
Quality Monitoring
Table
3.7 Marine Water Quality Stations for Additional DO
Monitoring
Table 4.1 Noise Monitoring Station for Contract nos. HK/2009/01
and HK/2009/02 and HK/2010/06
Table 4.2 Noise Monitoring
Station for Contract nos. HY/2009/15
Table 4.3 Noise Monitoring Stations for Contract no. HY/2009/19
Table 4.4 Real Time Noise
Monitoring Station for Contract no. HY/2009/11 and HY/2009/19
Table 4.6 Air Monitoring Stations for Contract no. HK/2009/01
Table 4.7 Air Monitoring Station for Contract no. HK/2009/02
Table 4.8 Air Monitoring Station
for Contract no. HY/2009/15
Table 4.9 Air Monitoring Stations for Contract no. HY/2009/19
Table 4.10 Water Monitoring
Stations for Contract no. HY/2009/11
Table 4.11 Water Monitoring Stations for Contract no. HK/2009/01
Table 4.12 Water Monitoring Stations for Contract no. HK/2009/02
Table 4.13 Water Monitoring Stations for Contract no. HK/2010/06
Table 4.15 Water Monitoring Stations for
Contract no. HY/2009/19
Table 4.15a Summary of
Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting period
Table 4.16 Summary of Water Quality Monitoring Exceedances in Reporting
period
Table 4.17 Details of Waste Disposal for Contract no. HK/2009/02
Table 4.18 Details of Waste Disposal for Contract no. HK/2009/01
Table 4.19 Details of Waste Disposal for Contract no. HK/2009/02
Table 4.20 Details of Waste Disposal for Contract no. HY/2009/15
Table 4.21 Details of Waste Disposal for Contract no. HK/2010/06
Table 4.22 Details
of Waste Disposal for Contract no. HY/2009/19
Table 5.1 Summary of Water
Quality Monitoring Exceedances in Reporting period
Table 5.1a Summary of Enhanced
Dissolved Oxygen Monitoring Exceedances in Reporting period
Table 6.1 Cumulative Statistics
on Complaints
Table 6.2 Cumulative Statistics
on Successful Prosecutions
lIST OF FIGUREs
Figure
2.1 Project Layout
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
4.1 Noise Monitoring
Graphical Presentations
Appendix
4.2 Air Quality Monitoring
Graphical Presentations
Appendix
4.3 Water Quality Monitoring
Graphical Presentations
Appenidx
4.3a Additional Dissolved Oxygen Monitoring
Results
Appendix 4.4 Real-time Noise Monitoring Results and Graphical Presentations
Appendix 5.1 Event Action Plans
Appendix 6.1 Complaint Log
Appendix 7.1 Construction Programme of
Individual Contracts
Construction Activities for the
Reported Period
Table I Principal Work Activities for Contract
no. HK/2009/01
|
December 2013 |
January 2014 |
February 2014 |
|
Marine Works (at Wan Chai) Ÿ Further
rock filling from HATS at East side of Area 8 in order to extend the work
area. Ÿ Concreting
of roof slab of bay 9. Ÿ The
construction of D-Wall at C1/C2 interface. The guide wall and ground
treatment for construction from CH325 to CH360. Ÿ Reinstatement
works at Tsim Sha Tsi Site B. Ÿ Footpath
diversion for construction of discharge pipes ata Expo Drive East. Waterworks Ÿ Reinstatement
works at HKCEC northwest. Ÿ Cooling
main laying works along Expo Drive East to Fleming Road in C1-3 and Zone X2-1.
Ÿ Salt
watermain laying works near Grand Hyatt Hotel. Zone A5-2, A1-5C and A1-5B.
Zone A1-5A3 near the Urban Car Park. Salt watermain laying works at Harbour
Road and Zone A5-3, A5-4 toward the eastbound. Night works for salt watermain
laying near Renaissance Harbour View hotel. Tunnel Works Ÿ Installation
of pre-bored H-pile in CWB Stage 2 Atrium Link. Ÿ Installation
of pre-bored H-pile in CWB Stage 3 Atrium Link. Ÿ Construction
of the Common D-wall in Stage 2. Ÿ Backfilling
of Temporary Water Chanel & Reclaim Land at CH220 – CH260 Ÿ Installation
of sheet pile for demolition of P5 house and the works for tie-back. Ÿ
Installation of ELS at first layer
for Stage 1. |
Marine Works (at Wan Chai) Ÿ Further
rock filling at East side of Area 8 in order to extend the work area for
future road construction. Ÿ Construction
of bay 8 and subsequent backfilling work. Ÿ The
construction of D-wall at C1/C2 interface except T-panels. Ÿ Footpath
diversion for construction of discharge pipes at Expo Drive East. ELS work
for installation of discharge pipes. Waterworks Ÿ Reinstatement
works at Tsim Sha Tsui near Salisbury Garden. Tree transplanting works was in
discussion with the relevant stakeholders.
Ÿ Reinstatement
works at HKCEC northwest. Ÿ Cooling
Mainlaying works for BI, BG & BF along Expo Drive East to Fleming Road. Ÿ Pedestrian
crossing relocation at Zone X2-1 at J/O Convention Avenue & Expo Drive
East. Ÿ Salt
Watermain Laying works for S8B along Convention Avenue. Zones of Grand Hyatt
Hotel nearby in A1-5A2, A1-5B1, A1-5B2 and A1-5C. Zone A1-5A3 outside the
hotel carriageway. Zone A4-2B & A4-2C at east of Convention Ave near
Renaissance Harbour View Hotel. Ÿ Capping
works for SOC and APA. Reinstatement works area in Zone A2-2. Ÿ Salt
Watermain Laying works for S8B at Harbour Road and Fenwick Pier Street. Zone
A3-5C Salt Watermain Laying works for S9. Ÿ Treatment
for the abandoned cooling main works at Convention Avenue near JV’s site
office. Tunnel Works Ÿ Installation
of pre-bored H-pile in CWB Stage 2 Atrium Link. Ÿ Installation
of pre-bored H-pile in CWB Stage 3 Atrium Link. Ÿ Construction
of the CWB-South D-wall in Stage 2 was in progress. Ÿ Backfilling
of Temporary Water Channel & Reclaim Land at CH220 – CH260. Ÿ Installation
of sheet pile for demolition of P5 Pump house and the demolition works. Ÿ Installation
of ELS at first layer for Stage 1. The excavation work to -5.5 mPD was followed
by pumping test for CWB Tunnel Structure Works. |
Ÿ Remedial
work at the box culvert Bay 8 and 9. Ÿ The
construction of D-wall at C1/C2 interface Ÿ Footpath
diversion for construction of discharge pipes at Expo Drive East. ELS work
for installation of discharge pipes. Ÿ Trimming
works for Wan Chai and Fairway in Victoria Harbour and followed by the survey
works. Grabbing of high spots. Ÿ Backfilling
works for temporary road construction. Extension of steel deck for UU
diversion. Ÿ Reinstatement
works at Tsim Sha Tsui. Tree transplanting. Ÿ Reinstatement
works at HKCEC northwest. Ÿ Cooling
Mainlaying works for BI, BG & BF along Expo Drive East to Fleming Road.
Zone C1-5 followed by Zone C1-7 & C1-9 at the J/O Expo Drive East and
Expo Drive. Ÿ Salt
Watermain Laying works for S8B along Convention Avenue which released the access
to Urban Carpark at Convention Avenue westbound. Zones outside Grand Hyatt
Hotel carriageway A1-5A3. Ÿ Salt
Watermain Laying works for S8B at Harbour Road and Fenwick Pier Street. Zone
A3-4D at Fenwick Pier Street westbound. Zone A3-5C Salt Watermain Laying
works for S9 after completion of pressure test. Ÿ The
installation of pre-bored H-piles in CWB stage 2 Atrium Link. Ÿ The
overall piling work. Ÿ The
installation of pre-bored H-piles in CWB stage 3 Atrium Link. Ÿ Demolition
of P5 Pump house at Promenade Deck. Ÿ Installation
of ELS at first layer for Stage 1. Installation of ELS at second layer. The
excavation work to -5.5 mPD. Ÿ Pumping
test for CWB Tunnel Structure Works at Stage 1 |
Table II Principal Work Activities for Contract no.
HK/2009/02
|
December 2013 |
January 2014 |
February 2014 |
|
Ÿ Special
movement joint rectification works for P8 discharge mains at CHBH Ÿ Hatch
box replacement for P7 intake mains and cable relocation works for subsequent
construction of 8x8 pit. Ÿ All
outstanding works for handing over P7, P8 and P9 Cooling Water Pumping
Stations. Ÿ The
connection with the existing DN600 salt watermains at Ÿ The
water tightness test for Salt Water Intake Culvert. Ÿ Removal
of temporary bulkhead for commencement of wet test of the WSD Salt Water
Pumping Station. Ÿ Wet
test of the WSD Salt Water Pumping Station and connection with existing
saltwater system at Ÿ Outstanding
works at WSD Salt Water Pumping Station. Ÿ Box
Culvert N1 & Drain FRP-N and the associated testing for handing over to
DSD Ÿ Drainage
re-diversion from temp 1800 dia. drain to the completed Box Culvert N1. Ÿ ABWF
works in Ferry Pier. Ÿ Rectifying
the defects in movable ramps. Ÿ Most
of the individual T&C of E&M equipment at Ferry Pier Ÿ Utility
installation works and EVA construction extending from P7 Cooling Water
Pumping Station to the Ferry Pier. Ÿ Construction
of Temporary Covered Walkway footing at GL Ÿ Design
verification works of the Eastern Bulkhead by the CSD Designer for
substantial handing over to Section IXA of the Works. Ÿ Seawall
blocks installation and filling works at WCR4/TWCR4 after abandonment of
existing temp 1800 dia. drain at WCR4. |
Ÿ Modification
of existing covered walkway along Ÿ Modification
of road junction between Ÿ For
rectification works of the special movement joint for P8 discharge main at
CHBH152m, pipe and re-installation; the hydraulic pressure test for P8
discharge pipeline and the backfilling works. Ÿ Replacement
of P7 hatch box. Ÿ Relocation
of cables at 8x8 pit. Ÿ Stage
2 CCTV survey test of P9 intake mains at existing carriageway CHAI 267 - CHAI
433. Ÿ Installation
of the Y-tee pipe for the connection to existing main and the thrust block
for DN600 tee block and DN800 end block. Ÿ Installation
of the aeration diffuser matrix with flexible pipes and the chlorination pipe
inside the intake chambers. Ÿ Seawater
infilling for Salt Water Intake Culvert and Inlet Chamber of WSD Salt Water
Pumping Station. Ÿ Removed
the seaside temporary bulkhead for the Salt Water Intake Culvert and the
landside temporary bulkhead for Salt Water Intake B. Ÿ Wet
test of WSD Pumping Station and WSD witness test. Ÿ The
remaining ABWF works and boundary wall in WSD Salt Water Pumping Station,
including maintenance platform and external finishes. Ÿ Watertightness
test of Box Culvert N1 was eventually. Ÿ Re-diversion
of temp 1800 dia. drain to the completed Box Culvert N1. Ÿ DSD
site inspection for access shaft |
Section III Ÿ Modification
of existing covered walkway along Expo Drive East. Ÿ Modification
of road junction between Expo Drive and Expo Drive East. Ÿ Sections
IVA, IVB & IVC Ÿ For
rectification works of the special movement joint for P8 discharge main at
CHBH 1.
The backfilling works and EVA
reinstatement. 2.
The pressure testing for P8
discharge main. 3.
The remaining pipe connection near
outfall and subsequently connected with the existing system. Ÿ Steel
fixing for wall and top slab of 8x8 pit. Section V Ÿ Wet
test of WSD Pumping Station. Ÿ WSD
witness test. Ÿ Connection
between proposed DN800 and existing DN600 pipe at Hung Hing Road. Ÿ Defect
for DN800 collar joint. Ÿ The
remaining ABWF works and boundary wall in WSD Salt Water Pumping Station,
including maintenance platform and external finishes Section VII: Ÿ Construction
of remaining DN1050 drain and manhole MH2, the manhole was casted and rectification
works for laid DN1050 FRP. Ÿ The
top slab for re-diversion of temp 1800 dia. drain to the completed Box
Culvert N1. Ÿ The
existing stoplog at SLO-1 for diverting the existing drainage to the
completed Box Culvert N1. Section VIIIA: Ÿ Pre-Handing
over meeting with ASD & EMSD without major comment. Ÿ Remaining
installation works for Movable Ramp. Ÿ T&C
of fresh watermains by passing the water sterilisation testing. Connection
with the existing fresh water supply system. Section XI: WCR4/TWCR4 Reclamation: Ÿ Further
reclamation to WCR4/TWCR4 by derrick barge and the reclamation. Ÿ Work
related to HHR Flyover Diversion (Stage 2): Ÿ
Mini-piling works for the
foundation of Bridge 3. |
Table III
Principal Work Activities for
Contract no. HY/2009/15
|
December 2013 |
January 2014 |
February 2014 |
|
Ÿ Construction
of EVA |
Ÿ Construction
of EVA |
Ÿ Construction
of EVA |
Table IV Principal
Work Activities for Contract no. HK/2010/06
|
December 2013 |
January 2014 |
February 2014 |
|
Ÿ Sheet
piling works |
Ÿ Sheet
piling works |
Ÿ Nil |
Table V Principal Work Activities for Contract no.
HY/2009/19
|
December 2013 |
January 2014 |
February 2014 |
|
Ÿ Removal
of strut at ELS will commence Ÿ Construction
works for Box Culvert T1 Ÿ Removal
of marine platform Ÿ Construction
of pile cap, pier & cross head (Marine) Ÿ ELS,
EVB and Cut & Cover Tunnel Ÿ Installation
of dewatering well Ÿ Laying
of 1500f
pipe Ÿ Launching
of segments Ÿ Extraction
of temporary pile from marine section Ÿ Construction
of bridge truss TA1 |
Ÿ Construction
works for Box Culvert T1 Ÿ Removal
of marine platform Ÿ Construction
of pile cap, pier & cross head (Marine) Ÿ ELS,
EVB and Cut & Cover Tunnel Ÿ Installation
of dewatering well Ÿ Laying
of 1500f
pipe Ÿ Launching
of segments Ÿ Extraction
of temporary pile from marine section Ÿ Construction
of bridge truss TA1 |
Ÿ Removal
of strut at ELS Ÿ Removal
of marine platform Ÿ Construction
of cross head (Marine) Ÿ Construction
of Dolphin Cap Ÿ ELS,
EVB and Cut & Cover Tunnel Ÿ Installation
of dewatering well Ÿ Laying
of 1500f
pipe Ÿ Launching
of segments Ÿ Extraction
of temporary pile from marine section Ÿ Construction
of bridge TA1 Ÿ
Pre-bored H-pile for Admin.
Building commenced |
Table VI Principal
Work Activities for Contract no. HK/2012/08
|
December 2013 |
January 2014 |
February 2014 |
|
Ÿ Dredging Ÿ ELS
for box culvert La at Ÿ Filling
for seawall rock mound formation Ÿ Filling
for reclamation at sea area of former Ÿ Caisson
seawall units installation Ÿ Works
for abandoning submarine sewerage outfall |
Ÿ ELS
for box culvert La at Lung King Street Ÿ Dredging Ÿ Filling
for seawall rock mound formation Ÿ Filling
for reclamation at sea area of former Expo Drive West Bridge Ÿ Works
for abandoning submarine sewerage outfall |
Ÿ ELS
for box culvert La at Lung King Street Ÿ Filling
for seawall rock mound formation Ÿ Filling
for reclamation at sea area of former Expo Drive West Bridge and to the west
of MTR tunnel Ÿ Works
for abandoning submarine sewerage outfall and watermain Ÿ Installation
of caisson seawall unit |
Table VII Principal Work Activities
for Contract no. HY/2010/08
|
December 2013 |
January 2014 |
February 2014 |
|
Ÿ Dredging
works |
Ÿ Dredging
works Ÿ Rock
filling works |
Ÿ Rock
filling works |
Noise Monitoring
Real-time Noise Monitoring
Air Quality Monitoring
CMA2a: from 23 December 2013 to 24
December 2013
CMA4a: from 28 January 2013 to 30
January 2014.
Water Quality Monitoring
xxvi.
No DO
exceedances, 6 turbidity exceedances and 10 SS exceedances were recorded during
mid-flood while no DO exceedance, 6 turbidity exceedances and 7 SS exceedances
were recorded during mid-ebb in the reporting quarter. All the exceedances were
concluded as non-project-related. The details of the recorded exceedances can
be referred to the Section 5.4.
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 and Further Environmental
permit nos. FEP-02/356/2009,
FEP-03/356/2009,
FEP-04/356/2009, FEP-05/356/2009, FEP-06/356/2009 and FEP-07/356/2009 to
implement the Environmental Monitoring and Audit (EM&A) programme as
stipulated in the EM&A Manual of the approved Environmental Impact
Assessment (EIA) Report for Wan Chai Development phase II and Central-Wan Chai
Bypass (Register No.: AEIAR-125/2008) and in the EM&A Manual of the
approved EIA Report for Central-Wan Chai Bypass and Island Eastern Corridor
Link (Register No. AEIAR-014/2001).
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 December 2013 to February 2014.
Section 1 Introduction – details the scope and structure of the
report.
Section 2 Project Background – summarizes background and scope of the
project, site description, project organization and contact details of key
personnel during the reporting period.
Section 3 Monitoring Requirements – summarizes all monitoring parameters,
monitoring locations, monitoring frequency, duration and action plan.
Section 4 Monitoring Results – summarizes the monitoring results
obtained in the reporting period.
Section 5 Compliance Audit – summarizes the auditing of monitoring results, all
exceedances environmental parameters.
Section 6 Complaints,
Notification of summons and Prosecution – summarizes the cumulative
statistics on complaints, notification of summons and prosecution
Section 7 Cumulative
Construction Impact due to the Concurrent Projects – summarizes the
relevant cumulative construction impact due to the concurrent activities of the
concurrent Projects.
Section 8 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
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
2.2.1.
The
Project is located mainly in Wan Chai North,
2.2.2.
The
study area encompasses existing developments along the Wan Chai,
2.2.3.
The scope of the Project comprises:
·
Land formation for key transport infrastructure and
facilities, including the Trunk Road (i.e. CWB) and the associated slip roads for
connection to the Trunk Road and for through traffic from Central to Wan Chai and
Causeway Bay. The land formed for the above transport infrastructure will provide
opportunities for the development of an attractive waterfront promenade for the
enjoyment of the public
·
Reprovisioning / protection of the existing
facilities and structures affected by the land formation works mentioned above
·
Extension, modification, reprovisioning or
protection of existing storm water drainage outfalls, sewerage outfalls and
watermains affected by the revised land use and land formation works mentioned
above
·
Upgrading of hinterland storm water drainage system
and sewerage system, which would be rendered insufficient by the land formation
works mentioned above
·
Provision of the ground level roads, flyovers,
footbridges, necessary transport facilities and the associated utility services
·
Construction of the new waterfront promenade,
landscape works and the associated utility services
·
The Trunk Road (i.e. CWB) within the study area and
the associated slip roads for connection to the Trunk Road.
2.2.4.
The
project also contains various Schedule 2 DPs that, under the EIAO, require
Environmental Permits (EPs) to be granted by the DEP before they may be either
constructed or operated. Table 2.1 summarises the five
individual DPs under this Project. Figure 2.1 shows the locations of these Schedule 2 DPs.
Table
2.1 Schedule 2 Designated Projects
under this Project
|
Item |
Designated Project |
EIAO Reference |
Reason for inclusion |
|
DP1 |
Central-Wanchai Bypass (CWB) including its road tunnel and slip roads |
Schedule 2, Part I, A.1 and A.7 |
Trunk road and road tunnel more than 800 m in length |
|
DP2 |
Road P2 and other roads which are classified as primary/district
distributor roads |
Schedule 2, Part I, A.1 |
Primary / district distributor roads |
|
DP3 |
Reclamation works including associated dredging works |
Schedule 2, Part I, C.1 and C.12 |
Reclamation more than 5 ha in size and a dredging operation less than
100 m from a seawater intake point |
|
DP5 |
Wan Chai East Sewage Outfall |
Schedule 2, Part I, F.5 and F.6 |
Submarine sewage pipelines with a total diameter more than 1,200 mm
and include a submarine sewage outfall |
|
DP6 |
Dredging for the Cross-harbour Water Mains from Wan Chai to Tsim Sha
Tsui |
Schedule 2, Part I, C.12 |
A dredging operation less than 100 m from a seawater intake point |
2.3.1.
Due
to the multi-contract nature of the Project, there are a number of contracts
sub-dividing the whole works area into different work areas to be
commenced. Contractors of individual
contracts will be required by the EP holder to apply Further Environmental
Permits (FEP) such that the impact monitoring stations are sub-divided
accordingly to facilitate the implementation of EM&A programme and to
streamline the EM&A reporting for individual FEP holders correspondingly.
2.3.2.
The
details of individual contracts are summarized in 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 – Central –Wanchai Bypass at |
DP3, DP6 |
23 July 2010 |
|
DP1, DP2 |
25 August 2011 |
||
|
HK/2009/02 |
Wan Chai Development Phase II – Central – Wan Chai Bypass at WanChai
East |
DP3, DP5 |
5 July 2010 |
|
DP1 |
26 |
||
|
HY/2009/11 |
Wan Chai Development Phase II and Central – Wan Chai Bypass – North
Point Reclamation |
DP3 |
17 March 2010 (Completed) |
|
HY/2009/15 |
Central-Wanchai Bypass – Tunnel ( |
DP3 |
10 November 2010 |
|
DP1 |
13 July 2011 |
||
|
HK/2010/06 |
Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen
Wan Line |
DP3 |
22 March 2011 |
|
04/HY/2006 |
Reconstruction of Bus Terminus near |
DP1 |
September 2010 (Completed) |
|
HY/2009/17 |
Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced
piling works. |
DP1 |
5 October 2010 (Completed) |
|
HY/2009/18 |
Central - Wan Chai Bypass (CWB) – Central Interchange |
DP1 |
21 |
|
HY/2009/19 |
Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link |
DP1 |
24 March 2011 |
|
HK/2012/08 |
Wan Chai
Development Phase II Central- Wan Chai Bypass at
Wan Chai West |
DP1,DP2,
DP3 |
5 March 2013 |
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 |
Principal Resident Engineer |
Mr. Frankie Fan |
2587 1778 |
2587 1877 |
|
Engineer’s Representative for CWB |
Principal Resident Engineer |
Mr. Peter Poon |
3912 3388 |
3912 3010 |
|
|
Chun Wo – Leader Joint Venture |
Contractor under Contract no. HK/2009/01 |
Joint
Venture Board Representative |
Mr. Simon Liu |
2162 9909 |
2587 1878 |
|
Deputy
Site Agent |
Mr
Andy Yu |
9648 4896 |
|||
|
Construction
Manager |
Mr
Terry Wong |
9757
9846 |
|||
|
Construction
Manager |
Mr.
Wyman Wong |
9627
2467 |
|||
|
Construction
Manager |
Mr
Kenneth Chan |
9160
3850 |
|||
|
Environmental
Officer (Compliance Manager) |
Mr.
Frank So
|
9863 6587 |
|||
|
Environmental
Supervisor |
Stanley
Chan |
9047 6148 |
|||
|
Chun Wo – CRGL Joint Venture |
Contractor under Contract no. HK/2009/02 |
Project
Manager |
Mr. Alfred Leung |
3658-3022 |
2827
9996 |
|
Quality & Environmental Manager |
Mr. C.P. Ho |
9191 8856 |
|||
|
China |
Contractor under Contract no. HY/2009/15 |
Project Director |
K C Cheung |
3557 6399 |
2566 2192 |
|
Site Manager |
J H Chen |
3557 6368 |
|||
|
|
|
Contractor’s Representative |
Andrew Wong |
3557 6358 |
|
|
|
|
Head of Construction Manager |
Roger Cheung |
3557 6371 |
|
|
|
|
Senior Construction Manager |
Gene Cheung |
3557 6395 |
|
|
Environmental Officer |
Mr. Daniel Sin |
3557 6347 |
|||
|
Gammon -Leader JV |
Contractor under Contract no. HK/2010/06 |
Project
Manager |
Mr. Paul Lui |
9095 7922 |
2529 2880 |
|
Site Agent |
Mr. Eric
Yip |
2529 2068 |
|||
|
Environmental Officer |
Clement
Pang |
9735 9200 |
|||
|
Environmental
Supervisor |
Jacky
Cheung |
9779 2292 |
|||
|
Chun Wo - CRGL - MBEC Joint Venture |
Contractor under Contract no. HY/2009/19 |
Project Manager |
Mr. Rayland Lee |
3758 8879 |
2570 8013 |
|
Site Agent |
Mr. Eric
Yip |
252902068 |
|||
|
Environmental Engineer |
Mr. Calvin Leung |
9286 9208 |
|||
|
Environmental Manager / Environmental Officer |
Mr. M.H. Isa |
9884 0810 |
|||
|
Construction Manager (Marine) |
William Luk |
9610 1101 |
|||
|
Construction Manager (Land) |
Patrick Cheung |
9643 3012 |
|||
|
Construction Manager (Land) |
Eric Fong |
6191 9337 |
|||
|
Operation Manager (Land) |
Yung Kwok Wah |
9834 1010 |
|||
|
Leader JV |
Contractor under Contract no. HK/2012/08 |
Project Director |
Andrew Tse |
9137 1811 |
2877 1522 |
|
|
|
Project Manager |
Victor Wu |
9193 8871 |
|
|
|
|
Deputy Project Manager |
George Cheung |
9268 1918 |
|
|
|
|
Site Agent |
Paul Lui |
9095 7922 |
|
|
|
|
Environmental Officer |
James Ma |
9130 9549 |
|
|
|
|
Environmental Supervisor |
Ching Man, Chan |
6050 4919 |
|
|
|
Contractor under
Contract no. HY/2010/08 |
Project Director |
Cheung Kit Cheung |
3557 6399 |
2566 8061 |
|
|
|
Project Manager |
Chan Ying Lun |
9812 0592 |
|
|
|
|
Deputy Project Manager |
Chris Leung |
3467 4299 |
|
|
|
|
Site Agent |
Dave Chan |
3467 4277 |
|
|
|
|
Environmental Officer |
C.M. Wong |
3557 6464 |
|
|
|
|
Environmental Supervisor |
Louis Lam Tsz Kwan |
3557 6470 |
|
|
ENVIRON Hong Kong Limited |
Independent
Environmental Checker (IEC) |
Independent Environmental Checker (IEC) |
Mr. David Yeung |
34652888 |
34652899 |
|
Lam Geotechnics Limited |
Environmental
Team (ET) |
Environmental Team Leader (ETL) |
Mr. Raymond Dai |
2882 3939 |
2882 3331 |
2.5.1.
During
this reporting period, the principal work activities for Contract no.
HK/2009/01 are summarized in Table 2.4.
Table 2.4 Principal Work Activities for Contract no.
HK/2009/01
|
December
2013 |
January
2014 |
February
2014 |
|
Marine Works (at
Wan Chai) Ÿ Further
rock filling from HATS at East side of Area 8 in order to extend the work
area. Ÿ Concreting
of roof slab of bay 9. Ÿ The
construction of D-Wall at C1/C2 interface. The guide wall and ground
treatment for construction from CH325 to CH360. Ÿ Reinstatement
works at Tsim Sha Tsi Site B. Ÿ Footpath
diversion for construction of discharge pipes ata Expo Drive East. Waterworks Ÿ Reinstatement
works at HKCEC northwest. Ÿ Cooling
main laying works along Expo Drive East to Fleming Road in C1-3 and Zone X2-1.
Ÿ Salt
watermain laying works near Grand Hyatt Hotel. Zone A5-2, A1-5C and A1-5B.
Zone A1-5A3 near the Urban Car Park. Salt watermain laying works at Harbour
Road and Zone A5-3, A5-4 toward the eastbound. Night works for salt watermain
laying near Renaissance Harbour View hotel. Tunnel Works Ÿ Installation
of pre-bored H-pile in CWB Stage 2 Atrium Link. Ÿ Installation
of pre-bored H-pile in CWB Stage 3 Atrium Link. Ÿ Construction
of the Common D-wall in Stage 2. Ÿ Backfilling
of Temporary Water Chanel & Reclaim Land at CH220 – CH260 Ÿ Installation
of sheet pile for demolition of P5 house and the works for tie-back. Ÿ
Installation of ELS at first layer
for Stage 1. |
Marine Works (at
Wan Chai) Ÿ Further
rock filling at East side of Area 8 in order to extend the work area for
future road construction. Ÿ Construction
of bay 8 and subsequent backfilling work. Ÿ The
construction of D-wall at C1/C2 interface except T-panels. Ÿ Footpath
diversion for construction of discharge pipes at Expo Drive East. ELS work
for installation of discharge pipes. Waterworks Ÿ Reinstatement
works at Tsim Sha Tsui near Salisbury Garden. Tree transplanting works was in
discussion with the relevant stakeholders.
Ÿ Reinstatement
works at HKCEC northwest. Ÿ Cooling
Mainlaying works for BI, BG & BF along Expo Drive East to Fleming Road. Ÿ Pedestrian
crossing relocation at Zone X2-1 at J/O Convention Avenue & Expo Drive
East. Ÿ Salt
Watermain Laying works for S8B along Convention Avenue. Zones of Grand Hyatt
Hotel nearby in A1-5A2, A1-5B1, A1-5B2 and A1-5C. Zone A1-5A3 outside the
hotel carriageway. Zone A4-2B & A4-2C at east of Convention Ave near
Renaissance Harbour View Hotel. Ÿ Capping
works for SOC and APA. Reinstatement works area in Zone A2-2. Ÿ Salt
Watermain Laying works for S8B at Harbour Road and Fenwick Pier Street. Zone
A3-5C Salt Watermain Laying works for S9. Ÿ Treatment
for the abandoned cooling main works at Convention Avenue near JV’s site
office. Tunnel Works Ÿ Installation
of pre-bored H-pile in CWB Stage 2 Atrium Link. Ÿ Installation
of pre-bored H-pile in CWB Stage 3 Atrium Link. Ÿ Construction
of the CWB-South D-wall in Stage 2 was in progress. Ÿ Backfilling
of Temporary Water Channel & Reclaim Land at CH220 – CH260. Ÿ Installation
of sheet pile for demolition of P5 Pump house and the demolition works. Ÿ Installation
of ELS at first layer for Stage 1. The excavation work to -5.5 mPD was followed
by pumping test for CWB Tunnel Structure Works. |
Ÿ Remedial
work at the box culvert Bay 8 and 9. Ÿ The
construction of D-wall at C1/C2 interface Ÿ Footpath
diversion for construction of discharge pipes at Expo Drive East. ELS work
for installation of discharge pipes. Ÿ Trimming
works for Wan Chai and Fairway in Victoria Harbour and followed by the survey
works. Grabbing of high spots. Ÿ Backfilling
works for temporary road construction. Extension of steel deck for UU
diversion. Ÿ Reinstatement
works at Tsim Sha Tsui. Tree transplanting. Ÿ Reinstatement
works at HKCEC northwest. Ÿ Cooling
Mainlaying works for BI, BG & BF along Expo Drive East to Fleming Road.
Zone C1-5 followed by Zone C1-7 & C1-9 at the J/O Expo Drive East and
Expo Drive. Ÿ Salt
Watermain Laying works for S8B along Convention Avenue which released the access
to Urban Carpark at Convention Avenue westbound. Zones outside Grand Hyatt
Hotel carriageway A1-5A3. Ÿ Salt
Watermain Laying works for S8B at Harbour Road and Fenwick Pier Street. Zone
A3-4D at Fenwick Pier Street westbound. Zone A3-5C Salt Watermain Laying
works for S9 after completion of pressure test. Ÿ The
installation of pre-bored H-piles in CWB stage 2 Atrium Link. Ÿ The
overall piling work. Ÿ The
installation of pre-bored H-piles in CWB stage 3 Atrium Link. Ÿ Demolition
of P5 Pump house at Promenade Deck. Ÿ Installation
of ELS at first layer for Stage 1. Installation of ELS at second layer. The
excavation work to -5.5 mPD. Ÿ Pumping
test for CWB Tunnel Structure Works at Stage 1 |
2.5.2. During this reporting period, the principal
work activities for Contract no. HK/2009/02 are summarized in Table 2.5.
Table 2.5 Principal Work Activities for Contract no.
HK/2009/02
|
December
2013 |
January
2014 |
February
2014 |
|
Ÿ Special
movement joint rectification works for P8 discharge mains at CHBH Ÿ Hatch
box replacement for P7 intake mains and cable relocation works for subsequent
construction of 8x8 pit. Ÿ All
outstanding works for handing over P7, P8 and P9 Cooling Water Pumping
Stations. Ÿ The
connection with the existing DN600 salt watermains at Ÿ The
water tightness test for Salt Water Intake Culvert. Ÿ Removal
of temporary bulkhead for commencement of wet test of the WSD Salt Water
Pumping Station. Ÿ Wet
test of the WSD Salt Water Pumping Station and connection with existing
saltwater system at Ÿ Outstanding
works at WSD Salt Water Pumping Station. Ÿ Box
Culvert N1 & Drain FRP-N and the associated testing for handing over to
DSD Ÿ Drainage
re-diversion from temp 1800 dia. drain to the completed Box Culvert N1. Ÿ ABWF
works in Ferry Pier. Ÿ Rectifying
the defects in movable ramps. Ÿ Most
of the individual T&C of E&M equipment at Ferry Pier Ÿ Utility
installation works and EVA construction extending from P7 Cooling Water
Pumping Station to the Ferry Pier. Ÿ Construction
of Temporary Covered Walkway footing at GL Ÿ Design
verification works of the Eastern Bulkhead by the CSD Designer for
substantial handing over to Section IXA of the Works. Ÿ Seawall
blocks installation and filling works at WCR4/TWCR4 after abandonment of
existing temp 1800 dia. drain at WCR4. |
Ÿ Modification
of existing covered walkway along Ÿ Modification
of road junction between Ÿ For
rectification works of the special movement joint for P8 discharge main at
CHBH152m, pipe and re-installation; the hydraulic pressure test for P8
discharge pipeline and the backfilling works. Ÿ Replacement
of P7 hatch box. Ÿ Relocation
of cables at 8x8 pit. Ÿ Stage
2 CCTV survey test of P9 intake mains at existing carriageway CHAI 267 - CHAI
433. Ÿ Installation
of the Y-tee pipe for the connection to existing main and the thrust block
for DN600 tee block and DN800 end block. Ÿ Installation
of the aeration diffuser matrix with flexible pipes and the chlorination pipe
inside the intake chambers. Ÿ Seawater
infilling for Salt Water Intake Culvert and Inlet Chamber of WSD Salt Water
Pumping Station. Ÿ Removed
the seaside temporary bulkhead for the Salt Water Intake Culvert and the
landside temporary bulkhead for Salt Water Intake B. Ÿ Wet
test of WSD Pumping Station and WSD witness test. Ÿ The
remaining ABWF works and boundary wall in WSD Salt Water Pumping Station,
including maintenance platform and external finishes. Ÿ Watertightness
test of Box Culvert N1 was eventually. Ÿ Re-diversion
of temp 1800 dia. drain to the completed Box Culvert N1. Ÿ DSD
site inspection for access shaft |
Section III Ÿ Modification
of existing covered walkway along Expo Drive East. Ÿ Modification
of road junction between Expo Drive and Expo Drive East. Ÿ Sections
IVA, IVB & IVC Ÿ For
rectification works of the special movement joint for P8 discharge main at
CHBH 4.
The backfilling works and EVA
reinstatement. 5.
The pressure testing for P8
discharge main. 6.
The remaining pipe connection near
outfall and subsequently connected with the existing system. Ÿ Steel
fixing for wall and top slab of 8x8 pit. Section V Ÿ Wet
test of WSD Pumping Station. Ÿ WSD
witness test. Ÿ Connection
between proposed DN800 and existing DN600 pipe at Hung Hing Road. Ÿ Defect
for DN800 collar joint. Ÿ The
remaining ABWF works and boundary wall in WSD Salt Water Pumping Station,
including maintenance platform and external finishes Section VII: Ÿ Construction
of remaining DN1050 drain and manhole MH2, the manhole was casted and
rectification works for laid DN1050 FRP. Ÿ The
top slab for re-diversion of temp 1800 dia. drain to the completed Box
Culvert N1. Ÿ The
existing stoplog at SLO-1 for diverting the existing drainage to the
completed Box Culvert N1. Section VIIIA: Ÿ Pre-Handing
over meeting with ASD & EMSD without major comment. Ÿ Remaining
installation works for Movable Ramp. Ÿ T&C
of fresh watermains by passing the water sterilisation testing. Connection
with the existing fresh water supply system. Section XI: WCR4/TWCR4
Reclamation: Ÿ Further
reclamation to WCR4/TWCR4 by derrick barge and the reclamation. Ÿ Work
related to HHR Flyover Diversion (Stage 2): Ÿ
Mini-piling works for the
foundation of Bridge 3. |
2.5.3. Major
construction activities for Contract no. HY/2009/15 was commenced on 10
November 2010. During this reporting period, the principal work activities for
Contract no. HY/2009/15 are summarized as below:
Table 2.6 Principal Work Activities for Contract no. HY/2009/15
|
December
2013 |
January
2014 |
February
2014 |
|
Ÿ Construction
of EVA |
Ÿ Construction
of EVA |
Ÿ Construction
of EVA |
2.5.4.
Contract no. HK/2010/06 was commenced on 22 March 2011. During
this reporting period, the principal work activities for Contract no.
HK/2010/06 are summarized as below:
Table 2.7 Principal Work Activities for Contract no. HK/2010/06
|
December
2013 |
January
2014 |
February
2014 |
|
Ÿ Sheet
piling works |
Ÿ Sheet
piling works |
Ÿ Nil |
2.5.5.
Contract no. HY/2009/19 was commenced
on 24 March 2011. During this reporting period, the principal work activities
for Contract no. HY/2009/19 are summarized as below:
Table 2.8 Principal Work Activities for Contract no. HY/2009/19
|
December
2013 |
January
2014 |
February
2014 |
|
Ÿ Removal
of strut at ELS will commence Ÿ Construction
works for Box Culvert T1 Ÿ Removal
of marine platform Ÿ Construction
of pile cap, pier & cross head (Marine) Ÿ ELS,
EVB and Cut & Cover Tunnel Ÿ Installation
of dewatering well Ÿ Laying
of 1500f pipe Ÿ Launching
of segments Ÿ Extraction
of temporary pile from marine section Ÿ Construction
of bridge truss TA1 |
Ÿ Construction
works for Box Culvert T1 Ÿ Removal
of marine platform Ÿ Construction
of pile cap, pier & cross head (Marine) Ÿ ELS,
EVB and Cut & Cover Tunnel Ÿ Installation
of dewatering well Ÿ Laying
of 1500f pipe Ÿ Launching
of segments Ÿ Extraction
of temporary pile from marine section Ÿ Construction
of bridge truss TA1 |
Ÿ Removal
of strut at ELS Ÿ Removal
of marine platform Ÿ Construction
of cross head (Marine) Ÿ Construction
of Dolphin Cap Ÿ ELS,
EVB and Cut & Cover Tunnel Ÿ Installation
of dewatering well Ÿ Laying
of 1500f pipe Ÿ Launching
of segments Ÿ Extraction
of temporary pile from marine section Ÿ Construction
of bridge TA1 Ÿ
Pre-bored H-pile for Admin.
Building commenced |
2.5.6.
Contract no. HK/2012/08 was commenced
on March 2013. During this reporting period, the principal work activities for
Contract no. HK/2012/08 are summarized as below:
Table 2.9 Principal Work Activities for Contract no. HK/2012/08
|
December
2013 |
January
2014 |
February
2014 |
|
Ÿ Dredging Ÿ ELS
for box culvert La at Ÿ Filling
for seawall rock mound formation Ÿ Filling
for reclamation at sea area of former Ÿ Caisson
seawall units installation Ÿ Works
for abandoning submarine sewerage outfall |
Ÿ ELS
for box culvert La at Lung King Street Ÿ Dredging Ÿ Filling
for seawall rock mound formation Ÿ Filling
for reclamation at sea area of former Expo Drive West Bridge Ÿ Works
for abandoning submarine sewerage outfall |
Ÿ ELS
for box culvert La at Lung King Street Ÿ Filling
for seawall rock mound formation Ÿ Filling
for reclamation at sea area of former Expo Drive West Bridge and to the west
of MTR tunnel Ÿ Works
for abandoning submarine sewerage outfall and watermain Ÿ Installation
of caisson seawall unit |
2.5.7.
Contract no. HY/2010/08 was commenced
on 21 March 2013. During this reporting period, the principal work activities
for Contract no. HY/2010/08 are summarized as below:
Table 2.10
Principal Work
Activities for Contract no. HY/2010/08
|
December
2013 |
January
2014 |
February
2014 |
|
Ÿ Dredging
works |
Ÿ Dredging
works Ÿ Rock
filling works |
Ÿ Rock
filling works |
2.5.8.
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 |
Harbour Road Sports Centre |
|
M2b |
Noon Gun Area |
|
M3a |
Tung Lo Wan Fire
Station |
|
M4b |
Victoria Centre |
|
M5b |
|
|
M6 |
HK |
Real
time Noise Monitoring Stations
3.1.1.
The real-noise 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 Real Time Noise
Monitoring Station
|
District |
Station |
Description |
|
Tin Hau |
RTN1 |
FEHD Hong Kong Transport Section Whitefield Depot |
|
North Point |
RTN2 |
Oil Street Community Liaison Centre |
|
North Point |
RTN2a |
Electric Centre |
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:
·
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 – 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:
·
One
set of measurements between 0700 and 1900 hours on normal weekdays.
·
One
set of measurements between 1900 and 2300 hours on normal weekdays and 0700 and
2300 hours on public holidays.
·
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
3.3 and Figure 3.1. Appendix 3.1 shows the established Action/Limit Levels for the
monitoring works.
Table 3.3 Air Monitoring Stations
|
Station ID |
Monitoring
Location |
Description |
|
CMA1b |
Oil Street Community
Liaison Centre |
North Point |
|
CMA2a |
|
|
|
CMA3a |
CWB PRE Site Office * |
|
|
CMA4a |
Society for the
Prevention of Cruelty to Animals |
Wan Chai |
|
CMA5a |
Children Playgrounds
opposite to |
Wan Chai |
|
CMA6a |
WDII PRE Site Office * |
Wan Chai |
* Remarks: As per the ENPC
meeting in January 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.
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:
·
0.6
- 1.7 m3 per minute adjustable flow range;
·
equipped
with a timing / control device with +/- 5 minutes accuracy for 24 hours
operation;
·
installed
with elapsed-time meter with +/- 2 minutes accuracy for 24 hours operation;
·
capable
of providing a minimum exposed area of 406 cm2;
·
flow
control accuracy: +/- 2.5% deviation over 24-hour sampling period;
·
equipped
with a shelter to protect the filter and sampler;
·
incorporated
with an electronic mass flow rate controller or other equivalent devices;
·
equipped
with a flow recorder for continuous monitoring;
·
provided
with a peaked roof inlet;
·
incorporated
with a manometer;
·
able
to hold and seal the filter paper to the sampler housing at horizontal
position;
·
easily
changeable filter; and
·
capable
of operating continuously for a 24-hour period.
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:
·
be
at least 16 years of age;
·
be
free from any respiratory illnesses; and
·
not
be allowed to smoke, eat, drink (except water) or use chewing gum or sweets 30
min
·
before
and during odour patrol
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:
·
0 -
Not detected. No odour perceived or an odour so weak that it cannot be easily
characterized or described;
·
1 -
Slight Identifiable odour, and slight chance to have odour nuisance;
·
2 -
Moderate Identifiable odour, and moderate chance to have odour nuisance;
·
3 -
Strong Identifiable, likely to have odour nuisance;
·
4 -
Extreme Severe odour, and unacceptable odour level.