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
and fep-05/356/2009 Quarterly Environmental Monitoring
and Audit Report
- December 2012 to FeBruary 2013 -
|
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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|
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CHECKED by: |
|
Raymond Dai Environmental Team Leader |
|
DATE: |
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March 2013 |
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.
HY/2009/11
Table II Principal Work Activities for Contract no.
HK/2009/01
Table III Principal Work Activities for Contract no.
HK/2009/02
Table IV Principal Work Activities for Contract no.
HY/2009/15
Table V Principal Work Activities for Contract no.
HK/2010/06
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.
HY/2009/11
Table 2.5 Principal Work Activities for Contract no.
HK/2009/01
Table 2.6 Principal Work Activities for Contract no.
HK/2009/02
Table 2.7 Principal Work Activities for Contract no.
HY/2009/15
Table 2.8 Principal Work Activities for Contract no.
HK/2010/06
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 Stations for Contract
no. HY/2009/11
Table 4.2 Noise Monitoring Station for Contract
nos. HK/2009/01 and HK/2009/02
Table 4.3 Noise Monitoring Station for Contract
nos. HY/2009/15
Table 4.4 Real Time Noise Monitoring Station for
Contract no. HY/2009/11 and HY/2009/19
Table 4.6 Real Time Noise Monitoring Station for
Contract no. HY/2009/11 andHY/2009/19
Table 4.7 Air Monitoring Stations for Contract
no. HY/2009/11
Table 4.8 Air
Monitoring Stations for Contract no. HK/2009/01
Table 4.9
Air Monitoring Stations for Contract
no. HY/2009/19
Table 4.10 Air Monitoring Station for Contract no. HY/2009/15
Table 4.11 Air Monitoring Station for Contract no.
HY/2009/19
Table 4.12 Water Monitoring Stations for Contract
no. HY/2009/11
Table 4.13 Water Monitoring Stations for Contract
no. HK/2009/01
Table 4.14 Water Monitoring Stations for Contract
no. HK/2009/02
Table 4.15 Water Monitoring Stations for Contract
no. HK/2010/06
Table 4.16 Water Monitoring Stations for Contract
no. HY/2009/15
Table 4.16a Summary
of Enhanced Dissolved Oxygen Monitoring Exceedances in Reporting period
Table 4.18 Summary
of Water Quality Monitoring Exceedances in Reporting period
Table 4.19 Details
of Waste Disposal for Contract no. HY/2009/11
Table 4.20 Details
of Waste Disposal for Contract no. HK/2009/01
Table 4.21 Details
of Waste Disposal for Contract no. HK/2009/02
Table 4.22 Details
of Waste Disposal for Contract no. HY/2009/15
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 2012 |
January 2013 |
February 2013 |
Marine Works (at Wan Chai) Rockfilling
of HKCEC3E (East of HKCEC) between CH290 and CH385 Lateral
supporting temporary pipe pile wall including grouting and tie back
installation works Removal of
existing seawall and rock armour at Dredging
works for Type 2 sediment beneath Installation
of precast seawall blocks for caisson and box culvert (Bay 10) installation Fabrication
of 3 nos. precast concrete caisson seawall, 1 no. precast concrete box
culvert (namely Bay10) and 2 nos. precast discharge outfall in precasting
yard at Cross-Harbour Watermains Installation (CHA
& CHB) and Marine Works (at TST) Rockfilling
and rock protection to cross-harbour watermains Thrust
block construction for A18B18 Reinstatement
works for the TST landfall was temporary suspended and the site area was
handed over to LCSD Construction
of transformer rectifier at new reclaimed area Fresh Watermains, Cooling Watermains and Salt
Watermains (On Land) Mainlaying
works at Zone B6-1, B6-3, B6-5, B3-1, A1-1, A1-2, A1-4, A1-2A & A1-3A,
A2-3D, A3-2A, A3-4A, A3-5A, A3-3C, C1-6 and Run-out of Renaissance Hotel Mainlaying
works and partially reinstatement in Zone A1-1 & A1-2 Mainlaying
works and subsequent reinstatement in Zone A2-3D (Stage 1), A3-2A &
Heading No. 1 and A3-4B Mainlaying
works at Zone A3-4A, A3-5A and A3-3C Mainlaying
and chamber construction works at the traffic island near junction of Mainlaying
works in Zone C1-6 of Mainlaying
works for proposed sewerage system in Zone B6-1, B6-3 (previously named
B1-5A) and B6-5 (previously named B2-1) Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains
23 out of 27 sections of cooling mains pipeline has been satisfied the
pressure test. E&M Full
commissioning test for Cooling Water Pumping Station P1 Site test
for all E&M equipment and facilities in Cooling Water Pumping Station P5
Preparation works including testing and
commissioning of all E&M equipment, BMS system and facilities in Cooling
Water Pumping Station P3 and P4 |
Marine Works (at Wan Chai) Rockfilling
of HKCEC3E (East of HKCEC) between CH290 and CH385 Dredging
works for Type 2 sediment near Wan Chai West Ferry Pier Rockfilling
at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for
subsequent open channel construction Installation
of precast seawall blocks for caisson and box culvert (Bay 10) installation Installation
of precast units including caisson seawalls, box culvert (namely Bay10) and
discharge outfall was commenced and substantially completed Cross-Harbour Watermains Installation (CHA
& CHB) and Marine Works (at TST) Rockfilling
and rock protection to cross-harbour watermains Reinstatement
works including seawall coping, gully, drawpit and tree transplantation for
the TST landfall was resumed. Construction
of transformer rectifier at new reclaimed area was completed in reporting
month and its cabling work Fresh Watermains, Cooling Watermains and Salt
Watermains (On Land) Mainlaying
works at Zone B6-1, B6-3, B6-5, A1-2A & A1-3A, A2-3D (Stage 2), A3-3B,
A3-4A, A3-5A, A3-3C and C1-4. Mainlaying
works and substantially reinstatements in combined Zone A1-1 & A1-2, Zone
A1-4 and Run-out of Renaissance Hotel. Mainlaying
works at Zone A1-3 (CHWM). Mainlaying
works at Zone A1-2 (CHWM), Zone A2-3D (Stage 2) and A3-3B. Mainlaying
works at Zone A3-4A and A3-5A. Mainlaying
works at Zone A3-3C. Mainlaying
and chamber construction works at the traffic island near junction of The
preparation works (including exposure of installed gate valve and repair of
gate valve) at Mainlaying
works at Zone C1-4. Mainlaying
works for proposed sewerage system in Zone B6-1, B6-3 (previously named
B1-5A) and B6-5 (previously named B2-1) Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains
25 out of 27 sections of cooling mains pipeline has been satisfied the
pressure test. Tunnel Works Backfilling
works on top of SCL protection works. Pre-bored
H piling works for the proposed CWB and altogether 10 nos. and 9 nos. of
pre-bored H piles. Pre-drilling
works for CWB (Stage 2). Ground
treatment works for proposed CWB diaphragm wall. Plant
Mobilization for diaphragm wall construction works at Stage 2. E&M Full
commissioning test for Cooling Water Pumping Station P1
Site test for all E&M equipment and
facilities in Cooling Water Pumping Station P5 |
Marine Works (at Wan Chai) Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Rockfilling
at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for
subsequent open channel construction. Installation
of precast block seawall (Type 1, 2 & 3). Construction
of mass concrete coping for new seawall. Cross-Harbour Watermains Installation (CHA
& CHB) and Marine Works (at TST) Rockfilling
and rock protection to cross-harbour watermains. Reinstatement
works including seawall coping, gully, drawpit and tree transplantation for
the TST landfall. CCTV
inspection for cross-harbour water main (including CHA, CHB, CHE & CHF). Fresh Watermains, Cooling Watermains and Salt
Watermains (On Land) Mainlaying
works at Zone B6-1, B6-3, B6-5, A1-2A & A1-3A, A3-3C and C1-2 . Mainlaying
works and substantially reinstatements in Zone A1-2, A2-3D (Stage 2), C1-4
and A3-4A. Grouting,
pipe connection and reinstatement works in combined Zone A1-2A & A1-3A. Grouting,
pipe connection and reinstatement works in Zone A1-3B. Mainlaying
works and substantially reinstatements in Zone A3-5A, A3-3B and footpath of Preparation
works at Zone A3-3C for subsequent connection works. The
preparation works (including exposure of installed gate valve and repair of
butterfly valve) at The
preparation works (including exposure of installed gate valve and repair of
gate valve) at Mainlaying
works at Zone C1-2. Mainlaying
works and coring works at external wall of seawater pumping stations for
proposed sewerage system in Zone B6-1. Mainlaying
works and substantially reinstatements in Zone B6-3 (previously named B1-5A)
and B6-5 (previously named B2-1). Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling
watermains. CCTV
inspection for cross-harbour watermains (land pipe at Wan Chai). Pressure
test for cross harbour watermains (whole length of land pipes in Wan Chai). Trench
excavation for HEC and PCCW cabling works connected to the proposed
transformer rectifier at new reclaimed area. Tunnel Works Backfilling
works on top of SCL protection works. Pre-bored
H piling works for the proposed CWB stage 1b Pre-drilling
works for CWB (Stage 2). Diaphragm
wall construction works at Stage 2. Removal of
remaining guide wall along E & M Full
commissioning test for Cooling Water Pumping Station P1. Site test
for all E&M equipment and facilities in Cooling Water Pumping Station P5. Initial
commissioning test for Cooling Water Pumping Station P5. |
Table II Principal Work Activities
for Contract no. HK/2009/02
December 2012 |
January 2013 |
February 2013 |
Concreting
the slab with hanger wall for planting area (+13.55mPD) between G.L.3-6/B-C
& E-F on Observation Deck Level (+14.65mPD) Concreting
the base slab and wall of sprinkler water tank machine room and the slab of
Machine Room Installation
of concrete block wall for store room 1 and room 2 on Level 1 Erecting
the wall stem formwork for caisson seawall precast unit 2X on flat-top barge Modification
work of PTI at Modification
work of bus station at Breaking
up the existing covered walkway footing at Rectification
works at bending block of cooling mains E&M
works and ABWFs installation at WSD Salt Water Pumping Station Drilling
hole and installation of pipe bracket for aeration and chlorination pipe
inside salt water intake Concreting
of the structure at salt water intake Steel
fixing of the shaft of Bay 2a in salt water intake seaside cofferdam Breaking
the existing concrete road slab for DN800 salt water mains at Ex-pet garden
near gate 1 Installation
the shoring to trial pit of the permanent connection point to existing DN 600
water main at Installation
of precast concrete short pipe extended from the existing 1800 drainage at
Box Culvert N landside |
Modification
work of PTI at Modification
work of bus station at Breaking
up the existing covered walkway footing at Concreting
the retaining wall base slab of Bay1, Bay 2 and Bay 5 at Rectification
works at bending block of cooling mains. Backfilling
at the conjunction between Tonnochy road and E&M
works and ABWFs installation at WSD Salt Water Pumping Station. Concreting
infill mass concrete at both sides and concreting 1m width x 300mm high mass
for cover M.J. at Bay 9 to Bay 11 in salt water intake landside cofferdam. Backfilling
grade 200mm rock material in the trench at Bay 6 to Bay 8 in salt water
intake landside cofferdam. Drilling
hole and installation of pipe bracket for aeration and chlorination pipe
inside salt water intake The shafts
of Intake chamber No.1 and No.2 for Bay 2A in salt water intake seaside
cofferdam were casted the 2nd layer of the horizontal struts. Placing
concrete for bend blocks btw CHS8A 150-165 at Ex-pet garden near new Gate
No.2. Installation
the shoring to trial pit of the permanent connection point to existing DN 600
water main at Saw
cutting of southern diaphragm wall for the connection between existing
drainage and Bay 1 of box culvert N1. Laying
1800mm dia. concrete pipe for the connection between existing drainage and
Bay 1 of box culvert N1. Erecting
formwork for concrete surround for concrete pipe. Concreting
of columns (total 6nos.) from M/F (+11.15mPD) to Observation Deck Level
(+14.65mPD) and Slab with beam between G.L.1-3/B-F on Level 2 (+7.65mPD). Concreting
of columns (total 9nos.) from Level 2 (+7.65mPD) to Observation Deck Level
(+14.65mPD). Concreting
of portion 2 for column C2C from +11.65mPD to +13.90mPD up to Observation
Deck Level (+14.65mPD). Concreting
of portion 1 for column C2E from +7.65mPD to +11.65mPD up to Observation Deck
Level (+14.65mPD). Steel
fixing and Formwork erection to Observation Deck Level at from GL 3-8 &
9-15. Installation
of concrete block wall for store room 1 and room 2 on Level 1. Placing
concrete of the final portion for precast scission seawall 2X. |
Modification
work of PTI at Modification
of existing covered walkway along Pressure
tests and the necessary rectification works for the installed cooling
watermains. Backfilling
for trench at the junction between E&M
works and their T&C in Cooling Water Pumping Stations P7, P8 and P9. Wet Tests
at WSD Salt Water Pumping Station. Backfilling
grade Drilling
hole and installation of pipe bracket for aeration and chlorination pipe
inside salt water intake Diver work
for excavation down to formation level at Bay 1B in salt water intake seaside
cofferdam. Mainlaying
works for DN800 salt watermains (CHS Works for
the Outfall B had been and the dye test. Switching
over works for sewage to WCE PTW. RC
structures for the proposed Ferry Pier. Construction
of eastern concrete staircase to Observation Deck Level. Concreting
of base slab with stem wall for PT2 & PT3 at Level 1 (under +4.15mPD). Installation
of concrete block wall for store room 1 and store room 2 on Level 1. Application
of protective coating to proposed precast caisson seawall 2X Eastern
Bulkhead Wall, Panel BHP3, BHP7 and BHP9 were cast (3 out of 13 panels) and
excavation for Panel BHP5. |
Table III
Principal Work
Activities for Contract no. HY/2009/15
December 2012 |
January 2013 |
February 2013 |
TZ1 and
TS2 reclamation works Formation
of temporary seawall at TS2 |
TZ1 and
TS2 reclamation works Formation
of temporary seawall at TS2 |
Removal of
eastern breakwater of CBTS |
Table IV Principal
Work Activities for Contract no. HK/2010/06
December 2012 |
January 2013 |
February 2013 |
Sheet
piling Platform
Disassembly Bored pile
casing cutting Grouting |
Disassembly
of staging platform Pile case
cutting Sheet pile
installation Dredging Construction
of pre-cast unit in mainland |
Pile Head
Breaking Pile
Casing Cutting Sheet
Piling Works Dredging Utility
Diversion Works Precast
Unit Box Construction (mainland |
Table
V
Principal Work
Activities for Contract no. HY/2009/19
December 2012 |
January 2013 |
February 2013 |
Marine
bored piling Construction
works for Box Culvert T Construction
of 1500f drainage
pipe |
Road works
at Bored
piling (Land) Pre-drilling
works for bored pile and Diaphragm wall D-wall Construction
(North & South Section) Guide wall
construction for D-wall / Barrette at North side Construction
works for Box Culvert T1 Marine
Piling Construct
ion of socket-H pile Construction
works for Culvert U1 Construction
of Pile cap & column (Land) Dismantling
of marine platform Demolition
of parapet at IEC Link Construction
of Pile caps & columns (Marine) Cut &
Cover Tunnel sheet piling works and installation of King Post Construction
of dewatering well for Cut & Cover Tunnel |
Road works
at Bored
piling (Land) Pre-drilling
works for bored pile and Diaphragm wall D-wall Construction
(North & South Section) Guide wall
construction for D-wall / Barrette at North side Construction
works for Box Culvert T1 Marine
Piling Construct
ion of socket-H pile Construction
works for Culvert U1 Construction
of Pile cap & column (Land) Dismantling
of marine platform Demolition
of parapet at IEC Link Construction
of Pile caps & columns (Marine) Cut &
Cover Tunnel sheet piling works and installation of King Post D8-D9
Gantry Fabrication for precast segment will continue Construction
of dewatering well for Cut & Cover Tunnel ELS for
Cut & Cover Tunnel |
Noise Monitoring
Real-time Noise Monitoring
Air Quality Monitoring
CMA2a: from 13 December 2012 to 14 December 2012
CMA3a: from 22 December 2012 to 24 December 2012
from 26 Jan 2013 to 28 Jan 2013
CMA6a: from 1 December 2012 to 3 December 2012
CMA5a: from 26 Feb 2013 to 27 Feb 2013
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 and Further Environmental
permit nos. FEP-01/356/2009, FEP-02/356/2009, FEP-03/356/2009, FEP-04/356/2009 and FEP-05/356/2009 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 2012 to February 2013
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 April 2011 |
||
HY/2009/11 |
Wan Chai Development Phase II and Central – Wan Chai Bypass – North
Point Reclamation |
DP3 |
17 March 2010 (Under applicationof surrender) |
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 |
HY/2009/17 |
Central - Wan Chai Bypass (CWB) at FEHD Whitfield Depot - Advanced
piling works. |
DP1 |
5 October 2010 |
HY/2009/18 |
Central - Wan Chai Bypass (CWB) – Central Interchange |
DP1 |
21 April 2011 |
HY/2009/19 |
Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link |
DP1 |
24 March 2011 |
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 |
3916 1818 |
3529 2829 |
|
Chun Wo – Leader Joint Venture |
Contractor under Contract no. HK/2009/01 |
Joint
Venture Board Representative |
|
2162 9909 |
2587 1878 |
Site Agent |
Mr. Paul Yu |
9456 9819 |
|||
Deputy Site
Agent |
Mr Andy Yu |
9648 4896 |
|||
Sub-Agent |
Mr Terry
Wong |
9757 9846 |
|||
Construction
Manager |
Mr. Wyman
Wong |
9627 2467 |
|||
Construction
Manager |
Mr. Jack Chu |
9775 3008 |
|||
Environmental
Officer (Compliance Manager) |
Mr. Andy
Mak |
9103 2370 |
|||
Environmental
Supervisor |
Kwong Weng
Kit |
6253 3356 |
|||
Chun Wo – CRGL Joint Venture |
Contractor under Contract no. HK/2009/02 |
Deputy Project
Manager |
Mr. Chan Sing Cho |
3658 3002 |
2827 9996 |
Quality & Environmental Manager (Environmental Officer) |
Mr. C.P. Ho |
3658 3000 |
|||
|
Contractor under Contract no. HY/2009/15 |
Project Director |
Chan Wai Hung |
2823 7813 |
2865 5229 |
Site Manager |
P J Fan |
3557 6368 |
2566 2192 |
||
|
|
Contractor’s Representative |
Mr. David Lau |
3557 6368 |
2566 2192 |
|
|
Head of Construction Manager |
Roger Cheung |
3557 6371 |
2566 2192 |
|
|
Senior Construction Manager |
Gene Cheung |
3557 6395 |
2566 2192 |
Environmental Officer |
Mr. Daniel Sin |
3557 6215 |
|
||
Gammon -Leader JV |
Contractor under Contract no. HK/2010/06 |
Project
Manager |
Mr. Paul Lui |
9095 7922 |
2529 2880 |
Site Agent |
Mr. Keith Tse |
2529 2068 |
|||
Environmental Officer |
Mr. Lee Wai Man |
9481 6024 |
|||
Environmental
Supervisor |
|
9735 9200 |
|||
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. Cheung Kit Cheung |
6909 1555 |
|||
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 |
|||
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
2012 |
January 2013 |
February
2013 |
Marine
Works (at Wan Chai) Rockfilling
of HKCEC3E (East of HKCEC) between CH290 and CH385 Lateral
supporting temporary pipe pile wall including grouting and tie back
installation works Removal of
existing seawall and rock armour at Dredging
works for Type 2 sediment beneath Installation
of precast seawall blocks for caisson and box culvert (Bay 10) installation Fabrication
of 3 nos. precast concrete caisson seawall, 1 no. precast concrete box
culvert (namely Bay10) and 2 nos. precast discharge outfall in precasting
yard at Cross-Harbour
Watermains Installation (CHA & CHB) and Marine Works (at TST) Rockfilling
and rock protection to cross-harbour watermains Thrust
block construction for A18B18 Reinstatement
works for the TST landfall was temporary suspended and the site area was
handed over to LCSD Construction
of transformer rectifier at new reclaimed area Fresh
Watermains, Cooling Watermains and Salt Watermains (On Land) Mainlaying
works at Zone B6-1, B6-3, B6-5, B3-1, A1-1, A1-2, A1-4, A1-2A & A1-3A,
A2-3D, A3-2A, A3-4A, A3-5A, A3-3C, C1-6 and Run-out of Renaissance Hotel Mainlaying
works and partially reinstatement in Zone A1-1 & A1-2 Mainlaying
works and subsequent reinstatement in Zone A2-3D (Stage 1), A3-2A &
Heading No. 1 and A3-4B Mainlaying
works at Zone A3-4A, A3-5A and A3-3C Mainlaying
and chamber construction works at the traffic island near junction of Mainlaying
works in Zone C1-6 of Mainlaying
works for proposed sewerage system in Zone B6-1, B6-3 (previously named
B1-5A) and B6-5 (previously named B2-1) Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains
23 out of 27 sections of cooling mains pipeline has been satisfied the
pressure test. E&M Full
commissioning test for Cooling Water Pumping Station P1 Site test
for all E&M equipment and facilities in Cooling Water Pumping Station P5 Preparation
works including testing and commissioning of all E&M equipment, BMS
system and facilities in Cooling Water Pumping Station P3 and P4 |
Marine
Works (at Wan Chai) Rockfilling
of HKCEC3E (East of HKCEC) between CH290 and CH385 Dredging
works for Type 2 sediment near Wan Chai West Ferry Pier Rockfilling
at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for
subsequent open channel construction Installation
of precast seawall blocks for caisson and box culvert (Bay 10) installation Installation
of precast units including caisson seawalls, box culvert (namely Bay10) and
discharge outfall was commenced and substantially completed Cross-Harbour
Watermains Installation (CHA & CHB) and Marine Works (at TST) Rockfilling
and rock protection to cross-harbour watermains Reinstatement
works including seawall coping, gully, drawpit and tree transplantation for
the TST landfall
was resumed. Construction
of transformer rectifier at new reclaimed area was completed in reporting
month and its cabling work Fresh
Watermains, Cooling Watermains and Salt Watermains (On Land) Mainlaying
works at Zone B6-1, B6-3, B6-5, A1-2A & A1-3A, A2-3D (Stage 2), A3-3B,
A3-4A, A3-5A, A3-3C and C1-4. Mainlaying
works and substantially reinstatements in combined Zone A1-1 & A1-2, Zone
A1-4 and Run-out of Renaissance Hotel. Mainlaying
works at Zone A1-3 (CHWM). Mainlaying
works at Zone A1-2 (CHWM), Zone A2-3D (Stage 2) and A3-3B. Mainlaying
works at Zone A3-4A and A3-5A. Mainlaying
works at Zone A3-3C. Mainlaying
and chamber construction works at the traffic island near junction of The
preparation works (including exposure of installed gate valve and repair of
gate valve) at Mainlaying
works at Zone C1-4. Mainlaying
works for proposed sewerage system in Zone B6-1, B6-3 (previously named
B1-5A) and B6-5 (previously named B2-1) Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling watermains
25 out of 27 sections of cooling mains pipeline has been satisfied the
pressure test. Tunnel
Works Backfilling
works on top of SCL protection works. Pre-bored
H piling works for the proposed CWB and altogether 10 nos. and 9 nos. of
pre-bored H piles. Pre-drilling
works for CWB (Stage 2). Ground
treatment works for proposed CWB diaphragm wall. Plant
Mobilization for diaphragm wall construction works at Stage 2. E&M Full
commissioning test for Cooling Water Pumping Station P1
Site test for all E&M equipment and
facilities in Cooling Water Pumping Station P5 |
Marine
Works (at Wan Chai) Rockfilling
at the northern part of HKCEC3E (East of HKCEC) between CH290 and CH385. Rockfilling
at the southern part of HKCEC3E (East of HKCEC) between CH290 and CH385 for
subsequent open channel construction. Installation
of precast block seawall (Type 1, 2 & 3). Construction
of mass concrete coping for new seawall. Cross-Harbour
Watermains Installation (CHA & CHB) and Marine Works (at TST) Rockfilling
and rock protection to cross-harbour watermains. Reinstatement
works including seawall coping, gully, drawpit and tree transplantation for
the TST landfall. CCTV
inspection for cross-harbour water main (including CHA, CHB, CHE & CHF). Fresh
Watermains, Cooling Watermains and Salt Watermains (On Land) Mainlaying
works at Zone B6-1, B6-3, B6-5, A1-2A & A1-3A, A3-3C and C1-2 . Mainlaying
works and substantially reinstatements in Zone A1-2, A2-3D (Stage 2), C1-4
and A3-4A. Grouting,
pipe connection and reinstatement works in combined Zone A1-2A & A1-3A. Grouting,
pipe connection and reinstatement works in Zone A1-3B. Mainlaying
works and substantially reinstatements in Zone A3-5A, A3-3B and footpath of Preparation
works at Zone A3-3C for subsequent connection works. The
preparation works (including exposure of installed gate valve and repair of
butterfly valve) at The
preparation works (including exposure of installed gate valve and repair of
gate valve) at Mainlaying
works at Zone C1-2. Mainlaying
works and coring works at external wall of seawater pumping stations for
proposed sewerage system in Zone B6-1. Mainlaying
works and substantially reinstatements in Zone B6-3 (previously named B1-5A)
and B6-5 (previously named B2-1). Final
cleaning, CCTV inspection and pressure test for the 9 nos. cooling
watermains. CCTV
inspection for cross-harbour watermains (land pipe at Wan Chai). Pressure
test for cross harbour watermains (whole length of land pipes in Wan Chai). Trench
excavation for HEC and PCCW cabling works connected to the proposed
transformer rectifier at new reclaimed area. Tunnel
Works Backfilling
works on top of SCL protection works. Pre-bored
H piling works for the proposed CWB stage 1b Pre-drilling
works for CWB (Stage 2). Diaphragm
wall construction works at Stage 2. Removal of
remaining guide wall along E & M Full
commissioning test for Cooling Water Pumping Station P1. Site test
for all E&M equipment and facilities in Cooling Water Pumping Station P5. Initial
commissioning test for Cooling Water Pumping Station P5. |
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
2012 |
January 2013 |
February
2013 |
Concreting
the slab with hanger wall for planting area (+13.55mPD) between G.L.3-6/B-C
& E-F on Observation Deck Level (+14.65mPD) Concreting
the base slab and wall of sprinkler water tank machine room and the slab of
Machine Room Installation
of concrete block wall for store room 1 and room 2 on Level 1 Erecting
the wall stem formwork for caisson seawall precast unit 2X on flat-top barge Modification
work of PTI at Modification
work of bus station at Breaking
up the existing covered walkway footing at Rectification
works at bending block of cooling mains E&M
works and ABWFs installation at WSD Salt Water Pumping Station Drilling
hole and installation of pipe bracket for aeration and chlorination pipe
inside salt water intake Concreting
of the structure at salt water intake Steel
fixing of the shaft of Bay 2a in salt water intake seaside cofferdam Breaking
the existing concrete road slab for DN800 salt water mains at Ex-pet garden
near gate 1 Installation
the shoring to trial pit of the permanent connection point to existing DN 600
water main at Installation
of precast concrete short pipe extended from the existing 1800 drainage at
Box Culvert N landside |
Modification
work of PTI at Concreting
the retaining wall base slab of Bay1, Bay 2 and Bay 5 at Rectification
works at bending block of cooling mains. E&M
works and ABWFs installation at WSD Salt Water Pumping Station. Concreting
infill mass concrete at both sides and concreting 1m width x 300mm high mass
for cover M.J. at Bay 9 to Bay 11 in salt water intake landside cofferdam. Backfilling
grade 200mm rock material in the trench at Bay 6 to Bay 8 in salt water
intake landside cofferdam. Drilling
hole and installation of pipe bracket for aeration and chlorination pipe
inside salt water intake The shafts
of Intake chamber No.1 and No.2 for Bay 2A in salt water intake seaside
cofferdam were casted the 2nd layer of the horizontal struts. Placing
concrete for bend blocks btw CHS8A 150-165 at Ex-pet garden near new Gate
No.2. Installation
the shoring to trial pit of the permanent connection point to existing DN 600
water main at Saw
cutting of southern diaphragm wall for the connection between existing
drainage and Bay 1 of box culvert N1. Laying
1800mm dia. concrete pipe for the connection between existing drainage and
Bay 1 of box culvert N1. Erecting
formwork for concrete surround for concrete pipe. Concreting
of columns (total 6nos.) from M/F (+11.15mPD) to Observation Deck Level
(+14.65mPD) and Slab with beam between G.L.1-3/B-F on Level 2 (+7.65mPD). Concreting
of columns (total 9nos.) from Level 2 (+7.65mPD) to Observation Deck Level
(+14.65mPD). Concreting
of portion 2 for column C2C from +11.65mPD to +13.90mPD up to Observation
Deck Level (+14.65mPD). Concreting
of portion 1 for column C2E from +7.65mPD to +11.65mPD up to Observation Deck
Level (+14.65mPD). Steel
fixing and Formwork erection to Observation Deck Level at from GL 3-8 &
9-15. Installation
of concrete block wall for store room 1 and room 2 on Level 1. Placing
concrete of the final portion for precast scission seawall 2X. |
Modification
work of PTI at Modification
of existing covered walkway along Pressure
tests and the necessary rectification works for the installed cooling watermains. Backfilling
for trench at the junction between E&M
works and their T&C in Cooling Water Pumping Stations P7, P8 and P9. Wet Tests
at WSD Salt Water Pumping Station. Backfilling
grade Drilling
hole and installation of pipe bracket for aeration and chlorination pipe
inside salt water intake Diver work
for excavation down to formation level at Bay 1B in salt water intake seaside
cofferdam. Mainlaying
works for DN800 salt watermains (CHS Works for
the Outfall B had been and the dye test. Switching
over works for sewage to WCE PTW. RC
structures for the proposed Ferry Pier. Construction
of eastern concrete staircase to Observation Deck Level. Concreting
of base slab with stem wall for PT2 & PT3 at Level 1 (under +4.15mPD). Installation
of concrete block wall for store room 1 and store room 2 on Level 1. Application
of protective coating to proposed precast caisson seawall 2X Eastern
Bulkhead Wall, Panel BHP3, BHP7 and BHP9 were cast (3 out of 13 panels) and
excavation for Panel BHP5. |
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
2012 |
January 2013 |
February
2013 |
TZ1 and
TS2 reclamation works Formation
of temporary seawall at TS2 |
TZ1 and
TS2 reclamation works Formation
of temporary seawall at TS2 |
Removal of
eastern breakwater of CBTS |
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
2012 |
January 2013 |
February
2013 |
Sheet
piling Platform
Disassembly Bored pile
casing cutting Grouting |
Disassembly
of staging platform Pile case cutting Sheet pile
installation Dredging Construction
of pre-cast unit in mainland |
Sheet
Piling Works Utility
Diversion Works Precast
Unit Box Construction (mainland |
Table 2.8 Principal Work Activities for Contract no. HY/2009/19
December
2012 |
January 2013 |
February
2013 |
Marine
bored piling Construction
works for Box Culvert T Construction
of 1500f
drainage pipe |
Road works
at Bored
piling (Land) Pre-drilling
works for bored pile and Diaphragm wall D-wall Construction
(North & South Section) Guide wall
construction for D-wall / Barrette at North side Construction
works for Box Culvert T1 Marine
Piling Construct
ion of socket-H pile Construction
works for Culvert U1 Construction
of Pile cap & column (Land) Dismantling
of marine platform Demolition
of parapet at IEC Link Construction
of Pile caps & columns (Marine) Cut &
Cover Tunnel sheet piling works and installation of King Post Construction
of dewatering well for Cut & Cover Tunnel |
Road works
at Bored
piling (Land) D-wall Construction
(North & South Section) Guide wall
construction for D-wall / Barrette at North side Construction
works for Box Culvert T1 Marine
Piling Construct
ion of socket-H pile Construction
works for Culvert U1 Construction
of Pile caps & columns (Land) Dismantling
of marine platform Demolition
of parapet at IEC Link Construction
of Pile caps & columns (Marine) Construction
of dewatering well for Cut & Cover Tunnel D8-D9
Gantry Fabrication for precast segment will continue ELS for
Cut & Cover Tunnel will continue |
2.5.6.
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.
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 – September) will be effected and applied to the water quality
monitoring data from 30 April 2011.
Water Quality Monitoring Stations
3.3.3. It is proposed to monitor the water quality at 9
WSD salt water intakes and 14 cooling water intakes along the seafront of the
Table
3.4
Marine Water Quality Stations for Water
Quality Monitoring
Station Ref. |
Location |
Easting |
Northing |
WSD Salt Water Intake |
|||
WSD7 |
|
834150.0 |
818300.3 |
WSD9 |
Tai Wan |
837921.0 |
818330.0 |
WSD10 |
Cha Kwo Ling |
841900.9 |
817700.1 |
WSD15 |
Sai Wan Ho |
841110.4 |
816450.1 |
WSD17 |
|
839790.3 |
817032.2 |
WSD19 |
Sheung Wan |
833415.0 |
816771.0 |
WSD20 |
|
830750.6 |
816030.3 |
WSD21 |
Wan Chai |
836220.8 |
815940.1 |
RW1 |
Wan Chai (Reprovision) |
836188.8 |
815911.1 |
Cooling Water Intake |
|||
C1 |
HKCEC Extension |
835885.6 |
816223.0 |
C2 |
Telecom House |
835647.9 |
815864.4 |
C3 |
HKCEC Phase I |
835836.2 |
815910.0 |
C4e |
Wan |
835932.8 |
815888.2 |
C4w |
Wan |
835629.8 |
815889.2 |
C5e |
Sun Hung Kai Centre (Eastern) |
836250.1 |
815932.2 |
C5w |
Sun Hung Kai Centre (Western) |
836248.1 |
815933.2 |
C6 |
World Trade Centre |
837009.6 |
815999.3 |
C7 |
|
837193.7 |