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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-364/2009/D, Further Evironmental permit nos. fep-01/364/2009,
fep-02/364/2009, FEP-05/364/2009/A,
FEp-06/364/2009/a, FEp-07/364/2009/D, FEP-09/364/2009/B, fep-10/364/2009/B
and fep-11/364/2009/B Quarterly Environmental Monitoring
and Audit Report
- SEPTEMBER
2015 to NOVEMBER 2015 -
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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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December 2015 |
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
4.3. Air quality monitoring Results
5.3. Real Time Noise
Monitoring
5.5. Review
of the Reasons for and the Implications of Non-compliance
5.6. 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/2009/18
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. 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 VIII Principal Work Activities for Contract no.
HY/2011/08
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. HY/2009/18
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. HY/2009/19
Table 2.9 Principal
Work Activities for Contract no. HK/2012/08
Table 2.10 Principal Work
Activities for Contract no. HY/2010/08
Table 2.11 Principal Work
Activities for Contract no. HY/2011/08
Table 3.1 Noise
Monitoring Stations
Table 3.2 Real
Time Noise Monitoring Stations
Table 3.3 Air
quality monitoring Stations
Table 4.1 Noise Monitoring Station
for Contract no. HY/2009/18
Table 4.2 Noise Monitoring
Stations 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 Noise
Monitoring Stations for Contract no. HY/2009/19
Table 4.5 Noise Monitoring Stations for Contract
no. HY/2010/08
Table 4.6 Noise Monitoring Stations for Contract no.
HY/2011/08
Table 4.7 Real
Time Noise Monitoring Stations for Contract no. HY/2009/19
Table 4.8 Real Time
Noise Monitoring Stations for Contract
no. HY/2011/08
Table 4.9 Air
quality monitoring Stations for Contract no. HY/2009/18
Table 4.10 Air
quality monitoring Stations for Contract no. HK/2009/01
Table 4.11 Air
quality monitoring Station for Contract no. HK/2009/02
Table 4.12 Air
quality monitoring Station for Contract no. HY/2009/15
Table 4.13 Air
quality monitoring Stations for Contract no. HY/2009/19
Table 4.14 Air quality
monitoring Stations for Contract no. HK/2012/08
Table 4.15 Air
quality monitoring Stations for Contract no. HY/2010/08
Table 4.16 Air quality monitoring Stations for
Contract no. HY/2011/08
Table 4.17 Details
of Waste Disposal for Contract no. HK/2009/01
Table 4.18 Details
of Waste Disposal for Contract no. HK/2009/02
Table 4.19 Details
of Waste Disposal for Contract no. HY/2009/18
Table 4.20 Details
of Waste Disposal for Contract no. HY/2009/15
Table 4.21 Details
of Waste Disposal for Contract no. HY/2009/19
Table 4.22 Details
of Waste Disposal for Contract no. HK/2012/08
Table 4.23 Details of Waste Disposal for Contract no.
HY/2010/08
Table 4.24 Details of
Waste Disposal for Contract no. HY/2011/08
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 Results and
Graphical Presentations
Appendix 4.2 Real-time Noise Monitoring
Results and Graphical Presentations
Appendix 4.3 Air Quality Monitoring Results
and Graphical Presentations
Appendix 5.1 Event Action Plans
Appendix 6.1 Complaint Log
Appendix 6.2 Notification of Exceedance
Appendix 8.1 Construction Programme of
Individual Contracts
EXECUTIVE
SUMMARY
Contract no.
HY/2009/18 - Central - Wan Chai Bypass (CWB)
- Central Interchange under FEP-05/364/2009/
Major construction activities for Contract no. HY/2009/18 have been
commenced on 21
Table I Principal Work Activities for Contract
no. HY/2009/18
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ Drainage works Ÿ Road works Ÿ Bridges construction |
Ÿ Drainage works Ÿ Road works Ÿ Bridges construction |
Ÿ Drainage works Ÿ Road works Ÿ Bridges construction |
Contract no.
HK/2009/01 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Hong
Kong Convention and Exhibition Centre - Tunnel Works under FEP-02/364/2009
Major construction activities
for Contract no. HK/2009/01 have been commenced on 25 August 2011. During this
reporting period, the principal work activities are summarized as below:
Table II Principal Work
Activities for Contract no. HK/2009/01
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ Stage 1 & 2 Backfilling of CWB
Tunnel top slab Ÿ Stage 2 Construction of slip road 2
and 3 Ÿ Stage 3 RC structure for CWB Tunnel
Bay 11 to 17 Ÿ Stage 3 Box culvert diversion Ÿ Removal of abandoned cooling main (P7/P9)
at Convention Avenue Ÿ Reinstatement of outfall Ÿ Reinstatement of triangular planter at
Fenwick Pier Street Ÿ Roadworks /drains for Expo Drive East Ÿ Stage 4 Piling works |
Ÿ Stage 1 & 2 Backfilling works at
CWB Tunnel top slab Ÿ Stage 2 Construction of slip road 2
and 3 Ÿ Stage 3 RC structure for CWB Tunnel
Bay 11 to 17 Ÿ Removal of abandoned cooling main
(P7/P9) at Convention Avenue Ÿ Reinstatement of outfall Ÿ Reinstatement of triangular planter at
Fenwick Pier Street Ÿ Roadworks /drains for Expo Drive East Ÿ Stage 4 Piling works was completed and
ELS works |
Ÿ Stage 1 & 2 Backfilling works at
CWB Tunnel top slab Ÿ Stage 2 Construction of slip road 2
and 3 Ÿ Stage 3 RC structure for CWB Tunnel
Bay 18 to 20 Ÿ Removal of abandoned cooling main
(P7/P9) at Convention Avenue Ÿ Reinstatement of outfall Ÿ Reinstatement of triangular planter at
Fenwick Pier Street Ÿ Roadworks /drains for Expo Drive East Ÿ Stage 4 ELS works |
Contract no.
HK/2009/02 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Wan
Chai East (CWB Tunnel) under FEP-01/364/2009
Major construction activities
for Contract no. HK/2009/02 have been commenced on 26
Table III Principal Work Activities for Contract no.
HK/2009/02
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ Removal of strut, clearance works was
on going at OHVD at Tunnel Portion 1 Ÿ Construction of road side barrier Ÿ Removal of strut layer S3 Ÿ Waterproofing and screeding works for
top slab Ÿ Construction of road side barrier Ÿ Excavation in Layer S3 Ÿ Struts installation for layer S4 Ÿ Struts installation for layer S5 |
Ÿ Removal of strut, clearance works was
on going at OHVD at Tunnel Portion 1. Ÿ Construction of road side barriers Ÿ Removal of strut layer S2 was on going Ÿ Waterproofing and screeding works for
top slab were on going Ÿ Backfilling works and access shaft
construction Ÿ Construction of road side barriers Ÿ Struts installation for layer S5 is
now in progress Ÿ Excavation for layer S6 is now in
progress |
Ÿ Removal of stockpile of material,
clearance works was on going at OHVD at Tunnel Portion 1. Ÿ Construction of road side barriers Ÿ Removal of strut layer S1 was on going Ÿ Backfilling works and access shaft
construction Ÿ Construction of road side barriers Ÿ Tunnel Portion 3 & 4: Ÿ Struts installation for layer S5 is
now in progress Ÿ Excavation for layer S6 is now in
progress Ÿ Breaking through bulkhead wall BW3 was
in progress |
Contract no. HY/2009/15 - Central-Wanchai
Bypass – Tunnel (Causeway Bay Typhoon Shelter Section) under FEP-06/364/2009/A
Major construction activities
for Contract no. HY/2009/15 has been commenced on 13 July 2011. During this
reporting period, the principal work activities are summarized as below:
Table IV Principal Work Activities for Contract no.
HY/2009/15
|
October
2015 |
November
2015 |
|
|
Ÿ Construction of OHVD and roadside
barrier at Mined Tunnel Ÿ Permanent lining structure at Mined
Tunnel Ÿ Fabrication of ELS steel works for
TPCWAW Ÿ Excavation and installation of ELS at
TPCWAW |
Ÿ Construction of OHVD and roadside
barrier at Mined Tunnel Ÿ Permanent lining structure at Mined
Tunnel Ÿ Fabrication of ELS steel works for
TPCWAW Ÿ Excavation and installation of ELS at
TPCWAW Ÿ Remaining works inside tunnel at TS4
and TPCWAE |
Ÿ Construction roadside barrier at Mined
Tunnel Ÿ Fabrication of ELS steel works for
TPCWAW Ÿ Excavation and installation of ELS
works at TPCWAW Ÿ Construction RC structure at TPCWAW Ÿ Remaining works inside tunnel at TS4
and TPCWAE Ÿ Removal of standby Dewatering System
and monitoring instrument along Hung Hing road |
Contract no. HY/2009/19 - Central -
Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link under
FEP-07/364/2009/D
Major construction activities
for Contract no. HY/2009/19 have been commenced on March 2011. During this
reporting period, the principal work activities are summarized as below:
Table V Principal Work
Activities for Contract no. HY/2009/19
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ Pile cap construction for IEC Ÿ Construction of EVB and APS structure Ÿ Column modification at F1 to F8 Ÿ Demolition of IEC west bound
deck/crosshead/column/pile cap Ÿ Bridge E pile
cap/column/crosshead/deck construction Ÿ Tunnel Bay 14 backfilling Ÿ Watson Road laying of new water pipe Ÿ Oil Street drainage works Ÿ Excavation / Construction of retaining
wall/Approach Ramp |
Ÿ Pier construction for IEC Ÿ Construction of EVB and APS structure Ÿ Column modification at F1 to F8 Ÿ Demolition of IEC west bound
deck/crosshead/column/pile cap Ÿ Bridge E crosshead/deck construction Ÿ Watson Road laying of new water pipe Ÿ Oil Street drainage works Ÿ Excavation / Construction of retaining
wall/ADB Ÿ Pier 28 to 33 segment erections |
Ÿ Pier construction for IEC Ÿ Construction of EVB and APS structure Ÿ Column modification at F1 to F8 Ÿ Demolition of IEC west bound
deck/crosshead/column/pile cap Ÿ Bridge E crosshead/deck construction Ÿ Watson Road laying of new water pipe Ÿ Oil Street drainage works Ÿ Excavation / Construction of retaining
wall/ADB Ÿ Bridge segment erections Ÿ Pre-bored H-pile for Approach Ramp Ÿ Hing Fat Street modification works |
Contract
no. HK/2012/08 – Wan Chai Development Phase II – Central- Wan Chai Bypass at
Wan Chai West under FEP-09/364/2009B
Table VI Principal
Work Activities for Contract no. HK/2012/08
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ Diaphragm wall construction Ÿ Grouting Ÿ Construction of ELS at MVB Ÿ Pre-bored H-pile construction |
Ÿ Diaphragm wall construction Ÿ Grouting Ÿ Construction of MVB Ÿ Pre-bored H-pile construction |
Ÿ Diaphragm wall construction Ÿ Grouting Ÿ Construction of MVB Ÿ Pre-bored H-pile construction Ÿ Construction of concrete plug Ÿ Excavation and lateral support
installation |
Contract
no. HY/2010/08 – Central and WanChai Bypass – Slip road 8 section under
FEP-10/364/2009B
Table VII Principal Work
Activities for Contract no. HY/2010/08
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ Tree protection works next to existing
BGO, Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for
U-structure, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Retaining wall works Ÿ Reprovisional of Bowling Green, Ÿ ELS works Ÿ Diaphragm Wall, Barrette construction
and king post installation works Ÿ D-wall drill cutting works Ÿ Construction works for subway
extension |
Ÿ Tree protection works next to existing
BGO, Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for
U-structure, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Retaining wall works Ÿ Re-provisional of Bowling Green, Ÿ ELS works, Ÿ Diaphragm Wall, Barrette construction
and king post installation works Ÿ D-wall drill cutting works Ÿ Construction works for subway
extension |
Ÿ Tree protection works next to existing
BGO, Ÿ Drainage improvement works, Ÿ Sheet piling works, Ÿ Excavation and Lateral Support for
U-structure, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Retaining wall works Ÿ Reprovisional of Bowling Green, Ÿ ELS works, Ÿ Diaphragm Wall, Barrette construction
and king post installation works Ÿ D-wall drill cutting works Ÿ Construction works for subway
extension |
Contract
no. HY/2011/08 –Central - Wan Chai Bypass (CWB) –Tunnel Buildings, Systems and
Fittings, and Works Associated with Tunnel Commissioning under FEP-11/364/2009B
Table VIII Principal Work
Activities for Contract no. HY/2011/08
|
September 2015 |
October 2015 |
November 2015 |
|
Ÿ West Ventilation Building Construction Ÿ East Ventilation Shaft Construction Ÿ Install VE panels bracket and thermal
barrier for Tunnel |
Ÿ West Ventilation Building Construction Ÿ East Ventilation Shaft Construction Ÿ Install VE panels bracket and thermal
barrier for Tunnel |
Ÿ West Ventilation Building Construction Ÿ East Ventilation Shaft Construction Ÿ Install VE panels bracket and thermal
barrier for Tunnel |
Noise Monitoring
Real
time Noise Monitoring
Air Quality Monitoring
Complaints, Notifications of
Summons and Successful Prosecutions
ET confirmed with the Resident Site
Staff that transferring of C&D materials from land to hopper barge by
excavator at seaside along CWB Tunnel Portions 3 and 4 was undertaken by
Contract HK/2009/02 on 01 September 2015.Mitigation measure including providing
tarpaulin sheet to cover the gap between seawall and the hopper barge to
prevent dropping of material to the sea was implemented by the Contractor.
According to the relevant site records
under Contract HK/2009/02, transferring of C&D materials from land to
hopper barge by excavator at seaside along CWB Tunnel Portions 3 and 4 was
carried out on 01 September 2015 and mitigation measures including provision of
tarpaulin sheet between seawall and the hopper barge was implemented by the
Contractor of HK/2009/02 on the concerned date. Follow-up inspection was
conducted during weekly environmental inspection on 10 September 2015.
Transferring of C&D materials from land to barge by excavator was observed
at the concerned location and mitigation measures including provision of
tarpaulin sheet between seawall and hopper barge and the material transfer works
was generally in order. Nevertheless, the Contractor of HK/2009/02 was reminded
to maintain the handling procedure for C&D materials transfer from land to
hopper barge and regularly inspect the condition of the tarpaulin sheet
provided to ensure the nearby water quality are not affected by the loading and
unloading of material from land side to hopper barge.
The Contractor was reminded to maintain
the handling procedure for C&D materials transfer from land to hopper barge
and regularly inspect the condition of the tarpaulin sheet provided to ensure
the nearby water quality are not affected by the loading and unloading of
material from land side to hopper barge.
ET confirmed with the Resident Site
Staff that from 0800 hrs to 1800 hrs on 30 August 2015, removal of scaffold and
timber and installation of bulkhead was undertaken by the Contractor of
HK/2012/08 at the concerned location. Total one generator and one circular saw
were in operation. From 1900hrs on 30 August 2015 to 0700 on 31 August 2015, no
construction works was undertaken by the Contractor of HK/2012/08 at the
concerned location.
From 1900hrs on 31 August 2015 to
0700hrs on 01 September 2015, no construction works was undertaken by the
Contractor of HK/2012/08 at the concerned location.
From 1900hrs to 2115 hrs on 01 September
2015, unloading of soil was undertaken by the Contractor of HK/2012/08 at the concerned
location. Total one derrick barge was in operation.
From 2300hrs on 01 September 2015 to
0700hrs on 02 September 2015, no construction works was undertaken by the
Contractor of HK/2012/08 at the concerned location. One derrick barge was
deployed for unloading of soil on 02 September 2015 during daytime under
Contract HK/2012/08 at the concerned location.
Based on the relevant site records, from
0800 hrs to 1800 hrs on 30 August 2015, removal of scaffold and timber and
installation of bulkhead was undertaken by the Contractor of HK/2012/08 at the
concerned location. Total one generator and one circular saw were in operation
and the relevant Construction Noise Permit GW-RS0296-15 for the concerned
operation was confirmed in place.
From 1900hrs on 30 August 2015 to 0700
on 31 August 2015, no construction works was undertaken by the Contractor of
HK/2012/08 at the concerned location and from 1900hrs on 31 August 2015 to
0700hrs on 01 September 2015, no construction works was undertaken by the
Contractor of HK/2012/08 at the concerned location.
From 1900hrs to 2115 hrs on 01 September
2015, unloading of soil was undertaken by the Contractor of HK/2012/08 at the
concerned location. Total one derrick barge was in operation and the
Construction Noise Permit GW-RS0296-15 for the concerned operation was
confirmed in place. From 2300hrs on 01 September 2015 to 0700hrs on 02
September 2015, no construction works was undertaken by the Contractor of
HK/2012/08 at the concerned location. In view of the above, the construction
activities conducted under Contract HK/2012/08 during the concerned period was
in compliance with the statutory requirement.
In addition, one derrick barge was
deployed for unloading of soil on 02 September 2015 during daytime under
Contract HK/2012/08 at the concerned location. Follow-up inspection was
conducted during weekly environmental inspection on 08 September 2015 and no
dark smoke emission was observed from the derrick barge moored outside the
concerned location. Nevertheless, the Contractor of HK/2012/08 was reminded to
conduct regular checking on the condition of the all derrick barges deployed on
site to ensure only well maintained equipment are used to avoid potential dark
smoke emission affecting nearby public and the Contractor of HK/2012/08 was
reminded to upkeep the site control system for construction works carrying out
at restricted hours and night time for Construction Noise Permit compliance.
The Contractor was reminded to conduct
regular checking on the condition of derrick barges deployed on site to ensure
only well maintained equipments are used on site to avoid potential dark smoke
emission affecting nearby public.
The Contractor of HK/2012/08 was
reminded to upkeep the site control system for construction works carrying out
at restricted hours and night time for Construction Noise Permit compliance.
Interim investigation report was
submitted to EPD on 24 November 2015. Due to further investigation undertaken,
further information and investigation summary shall be further included in
December reporting month.
ET confirmed with the Resident Site
Staff that the noise nuisance was caused by the windblown action of the
corrugated metal sheet loosely affixed onto the temporary noise barrier panel
above a concrete block footing fronting City Garden.
The noise nuisance was caused by the
windblown action of the corrugated metal sheet loosely affixed onto the
temporary noise barrier panel above a concrete blocking footing fronting City
Garden. The concerned corrugated metal sheet was removed by the Contractor of
HY/2009/19 on 27 November 2015 to avoid further generation of noise nuisance.
The Contractor was reminded to check and
ensure metal sheetings and other material stored within the construction site
are properly affixed to avoid potential noise nuisance due to windblown action.
1.1.1.
Lam
Geotechnics Limited (LGL) has been appointed to work as the Environmental Team
(ET) under Environmental Permit no. EP-364/2009/D and Further Environmental permit nos. FEP-01/364/2009, FEP-02/364/2009, FEP-05/364/2009/A, FEP-06/364/2009/A, FEP-07/364/2009/D, FEP-09/364/2009/B, FEP-10/364/2009/B and
FEP-11/364/2009/B to implement the Environmental Monitoring and
Audit (EM&A) programme as stipulated in the EM&A Manual of the approved
Environmental Impact Assessment (EIA) Report for Wan Chai Development phase II
and Central-Wan Chai Bypass (Register No.: AEIAR-125/2008) and in the EM&A
Manual of the approved EIA Report for Central-Wan Chai Bypass and Island
Eastern Corridor Link (Register No. AEIAR-041/2001).
1.1.2.
This
report presents the environmental monitoring and auditing work carried out in
accordance to the Section 10.3 of
EM&A Manual and “Environmental Monitoring and Audit Requirements”
under Particular Specification Section 27.
1.1.3. This report documents the finding of EM&A
works during the period from September
2015 to November 2015.
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.
Design and Construction of Central – Wan Chai
Bypass and Island Eastern Corridor Link under the Project involves the
construction and operation of a trunk road and its road tunnel more than 800m
in length between portals that is shown at Figure 2.1.
2.2.2.
The
study area encompasses existing developments from Central to North Point. The scope of the Central-Wanchai Bypass (CWB)
and Island Eastern Corridor Link (IECL) includes:
·
A dual three-lane trunk road, approximately 4.5 km
in length, and tunnel approximately 3.7 km in length defined from the
connection with the existing Rumsey Street Flyover in Central, through to a
connection with the existing Island Eastern Corridor to the east of the
Causeway Bay Typhoon Shelter (CBTS);
·
The Central Interchange near the Rumsey Street
Flyover to provide road connections to the Central area;
·
Tunnel control buildings and ventilation buildings;
·
Slip roads to connect the CWB to the local road
system in the Wan Chai North and
·
Associated road lighting, road signing, traffic
control and surveillance system; and
·
Other associated works.
2.2.3.
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 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.
In
the reporting period, all the contracts were commenced and contract no.
04/HY/2006 had been completed. 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 |
|
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 |
|
04/HY/2006 |
Reconstruction of Bus Terminus near |
DP1 |
September 2010 (Completed) |
|
HK/2009/01 |
Wan Chai Development Phase II – Central – Wan Chai Bypass at |
DP1, DP2 |
25 August 2011 |
|
HK/2009/02 |
Wan Chai Development Phase II – Central – Wan Chai Bypass at Wan Chai
East(CWB Tunnel) |
DP1 |
26 |
|
HY/2009/15 |
Central-Wanchai Bypass – Tunnel ( |
DP1 |
13 July 2011 |
|
HY/2009/19 |
Central – Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link |
DP1 |
24 March 2011 |
|
HK/2010/06 |
Wan Chai Development Phase II-Central-Wan Chai Bypass over MTR Tsuen
Wan Line |
DP3 |
22 March 2011 (Completed) |
|
HK/2012/08 |
Wan Chai Development Phase II- Central-Wan Chai
Bypass at Wan Chai West |
DP1,DP2, DP3 |
DP works under |
|
HY/2010/08 |
Central- Wanchai Bypass Tunnel – Tunnel (Slip
Road 8) |
DP1, DP2, DP3 |
21 March 2013 |
|
HY/2011/08 |
Central - Wan Chai Bypass (CWB) –Tunnel
Buildings, Systems and Fittings, and Works Associated with Tunnel
Commissioning |
DP1 |
8 October 2014 |
2.3.3.
The construction works of Contract no.
04/HY/2006 – Reconstruction of Bus Terminus near Man Yiu Street and Man Kwong
Street under FEP-04/364/2009/A was completed, and the FEP was surrendered by
the Contractor on 11 February 2011.
2.3.4.
Construction of bored pile E3B under HY/2009/17 was confirmed
completed and the respective work area under FEP-03/364/2009 was handover and inspected
under HY/2009/19 from 19 Dec 2012 onwards. Subsequently, the FEP-03/364/2009
was surrendered by the Contractor on 28 March 2013.
2.3.5.
Construction works under HK/2010/06 was confirmed completed and
the respective work area under FEP-08/364/2009/A was handover and inspected
under HK/2012/08 from 22 Sep 2014 onwards. Subsequently, the FEP-08/364/2009/A
was surrendered by the Contractor on 3 October 2014.
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 |
Project Manager |
Mr. Simon Liu |
2162 9909 |
2634 1626 |
|
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 |
Ms. Wendy
Ng |
9103
2370 |
|||
|
Assistant
Environmental Engineer |
Ms. Connie Chan |
9047 6148 |
|||
|
Chun Wo – CRGL Joint Venture |
Contractor under Contract no. HK/2009/02 |
Site Agent |
Mr. K.K. Yuen |
3658-3002 |
2827 9996 |
|
Project Manager |
Mr. Paul Yu |
3658 3085 |
|||
|
Environmental Officer |
Mr. C.P. Ho |
9191 8856 |
|||
|
Chun Wo - CRGL - MBEC Joint Venture |
Contractor under Contract no. HY/2009/19 |
Project Manager |
Mr. David Lau |
3758 8879 |
2570 8013 |
|
Deputy Project Manager |
Mr. William Luk |
9456 9819 |
|||
|
Deputy Site Agent |
Eric Fong |
6191 9337 |
|||
|
Environmental Manager / Environmental Officer |
Mr. M.H. Isa |
9884 0810 |
|||
|
Environmental Engineer |
Mr. Calvin Leung |
9286 9208 |
|||
|
Leighton Contractors (Asia) Limited |
Contractor under Contract no. HY/2009/18 |
Site Agent |
Mr. Jimmy Chu |
2214
7700 |
2140 6799 |
|
Deputy Site Agent |
Mr. Bob Yeung |
2214
7703 |
|||
|
Environmental Officer |
Mr. Chris Chan |
2823
1161 |
|||
|
Assistant Environmental Engineer |
Mr. Christy So |
3937
1065 |
|||
|
China |
Contractor under Contract no. HY/2009/15 |
Project Director |
Mr. Chris Leung |
3557 6393 |
2566 2192 |
|
Site Manager |
Mr. Y. Huo |
3557 6368 |
|||
|
Contractor’s
Representative |
Mr. Andrew Wong |
3557
6371 |
|||
|
Environmental Officer |
Mr. Andy Mak |
3557 6215 |
|||
|
Environmental Supervisor |
Mr. Harry Wong |
3557 6348 |
|||
|
China State- Leader JV |
Contractor under Contract no. HK/2012/08 |
Project
Director |
Mr. C.N.
Lai |
9137
1811 |
2877
1522 |
|
Project
Manager |
Mr. Eddie
Chung |
9193
8871 |
|||
|
Site
Agent |
Mr. Keith
Tse |
9095
7922 |
|||
|
Environmental
Officer |
Mr. James
MA |
9130
9549 |
|||
|
Environmental
Supervisor |
Mr. Y.L.
Ho |
6050
4919 |
|||
|
China |
Contractor under Contract no.HY/2010/08 |
Project
Director |
Cheung
Kit Cheung |
3557
6399 |
3465 2899 |
|
Project
Manager |
Chan
Ying Lun |
9812
0592 |
|||
|
Deputy
Project Manager |
Chris
Leung |
3467
4299 |
|||
|
Site
Agent |
Dr. Dave
Chan |
3467
4277 |
|||
|
Environmental
Officer |
Mr. Gabriel
Wong |
3557
6464 |
|||
|
Environmental
Supervisor |
Mr. Louis
Lam Tsz Kwan |
3557
6470 |
|||
|
Leighton Joint Venture |
Contractor under Contract no. HY/2011/08 |
Project
Manager |
Paul
Evans |
2823 1111 |
21406799 |
|
Site
Agent |
Colman Wong |
9730 0806 |
|||
|
Environmental
Officer |
Malcom
Leung |
3973 0850 |
|||
|
Environmental
Supervisor |
Christy So |
3973 1065 |
|||
|
Lam Geotechnics Limited |
Environmental
Team (ET) |
Environmental Team Leader (ETL) |
Mr. Raymond Dai |
2882 3939 |
2882 3331 |
|
RAMBOLL ENVIRON Hong Kong Limited |
Independent
Environmental Checker (IEC) |
Independent
Environmental Checker (IEC) |
Mr. David Yeung |
3465 2888 |
3465 2899 |
2.5.1.
Major construction activities for Contract no.
HY/2009/18 have been commenced on 21
Table 2.4 Principal Work Activities
for Contract no. HY/2009/18
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Drainage works Ÿ
Road works Ÿ
Bridges construction |
Ÿ
Drainage works Ÿ
Road works Ÿ
Bridges construction |
Ÿ
Drainage works Ÿ
Road works Ÿ
Bridges construction |
2.5.2. Major
construction activities for Contract no. HK/2009/01 have been commenced on 25
August 2011. During this reporting period, the principal work activities are
summarized in Table2.5:
Table 2.5 Principal Work Activities
for Contract no. HK/2009/01
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Stage 1 & 2 Backfilling of CWB Tunnel top slab Ÿ
Stage 2 Construction of slip road 2 and 3 Ÿ
Stage 3 RC structure for CWB Tunnel Bay 11 to 17 Ÿ
Stage 3 Box culvert diversion Ÿ
Removal of abandoned cooling main (P7/P9) at Convention Avenue Ÿ
Reinstatement of outfall Ÿ
Reinstatement of triangular planter at Fenwick Pier Street Ÿ
Roadworks /drains for Expo Drive East Ÿ
Stage 4 Piling works |
Ÿ
Stage 1 & 2 Backfilling works at CWB Tunnel top slab Ÿ
Stage 2 Construction of slip road 2 and 3 Ÿ
Stage 3 RC structure for CWB Tunnel Bay 11 to 17 Ÿ
Removal of abandoned cooling main (P7/P9) at Convention Avenue Ÿ
Reinstatement of outfall Ÿ
Reinstatement of triangular planter at Fenwick Pier Street Ÿ
Roadworks /drains for Expo Drive East Ÿ
Stage 4 Piling works was completed and ELS works |
Ÿ
Stage 1 & 2 Backfilling works at CWB Tunnel top slab Ÿ
Stage 2 Construction of slip road 2 and 3 Ÿ
Stage 3 RC structure for CWB Tunnel Bay 18 to 20 Ÿ
Removal of abandoned cooling main (P7/P9) at Convention Avenue Ÿ
Reinstatement of outfall Ÿ
Reinstatement of triangular planter at Fenwick Pier Street Ÿ
Roadworks /drains for Expo Drive East Ÿ
Stage 4 ELS works |
2.5.3. Major
construction activities for Contract no. HK/2009/02 have been commenced on 26
Table 2.6 Principal Work Activities
for Contract no. HK/2009/02
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Removal of strut, clearance works was on going at OHVD at Tunnel
Portion 1 Ÿ
Construction of road side barrier Ÿ
Removal of strut layer S3 Ÿ
Waterproofing and screeding works for top slab Ÿ
Construction of road side barrier Ÿ
Excavation in Layer S3 Ÿ
Struts installation for layer S4 Ÿ
Struts installation for layer S5 |
Ÿ
Removal of strut, clearance works was on going at OHVD at Tunnel
Portion 1. Ÿ
Construction of road side barriers Ÿ
Removal of strut layer S2 was on going Ÿ
Waterproofing and screeding works for top slab were on going Ÿ
Backfilling works and access shaft construction Ÿ
Construction of road side barriers Ÿ
Struts installation for layer S5 is now in progress Ÿ
Excavation for layer S6 is now in progress |
Ÿ
Removal of stockpile of material, clearance works was on going at OHVD
at Tunnel Portion 1. Ÿ
Construction of road side barriers Ÿ
Removal of strut layer S1 was on going Ÿ
Backfilling works and access shaft construction Ÿ
Construction of road side barriers Ÿ
Tunnel Portion 3 & 4: Ÿ
Struts installation for layer S5 is now in progress Ÿ
Excavation for layer S6 is now in progress Ÿ
Breaking through bulkhead wall BW3 was in progress |
2.5.4. Major
construction activities for Contract no. HY/2009/15 have been commenced on 13
July 2011. During this reporting period, the principal work activities are
summarized in Table 2.7:
Table 2.7 Principal Work Activities
for Contract no. HY/2009/15
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Construction of OHVD and roadside barrier at Mined Tunnel Ÿ
Permanent lining structure at Mined Tunnel Ÿ
Fabrication of ELS steel works for TPCWAW Ÿ
Excavation and installation of ELS at TPCWAW |
Ÿ
Construction of OHVD and roadside barrier at Mined Tunnel Ÿ
Permanent lining structure at Mined Tunnel Ÿ
Fabrication of ELS steel works for TPCWAW Ÿ
Excavation and installation of ELS at TPCWAW Ÿ
Remaining works inside tunnel at TS4 and TPCWAE |
Ÿ
Construction roadside barrier at Mined Tunnel Ÿ
Fabrication of ELS steel works for TPCWAW Ÿ
Excavation and installation of ELS works at TPCWAW Ÿ
Construction RC structure at TPCWAW Ÿ
Remaining works inside tunnel at TS4 and TPCWAE Ÿ
Removal of standby Dewatering System and monitoring instrument along
Hung Hing road |
2.5.5. Major
construction activities for Contract no. HY/2009/19 have been commenced on
March 2011. During this reporting period, the principal work activities are
summarized in Table 2.8:
Table 2.8 Principal Work Activities
for Contract no. HY/2009/19
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Pile cap construction for IEC Ÿ
Construction of EVB and APS structure Ÿ
Column modification at F1 to F8 Ÿ
Demolition of IEC west bound deck/crosshead/column/pile cap Ÿ
Bridge E pile cap/column/crosshead/deck construction Ÿ
Tunnel Bay 14 backfilling Ÿ
Watson Road laying of new water pipe Ÿ
Oil Street drainage works Ÿ
Excavation / Construction of retaining wall/Approach Ramp |
Ÿ
Pier construction for IEC Ÿ
Construction of EVB and APS structure Ÿ
Column modification at F1 to F8 Ÿ
Demolition of IEC west bound deck/crosshead/column/pile cap Ÿ
Bridge E crosshead/deck construction Ÿ
Watson Road laying of new water pipe Ÿ
Oil Street drainage works Ÿ
Excavation / Construction of retaining wall/ADB Ÿ
Pier 28 to 33 segment erections |
Ÿ
Pier construction for IEC Ÿ
Construction of EVB and APS structure Ÿ
Column modification at F1 to F8 Ÿ
Demolition of IEC west bound deck/crosshead/column/pile cap Ÿ
Bridge E crosshead/deck construction Ÿ
Watson Road laying of new water pipe Ÿ
Oil Street drainage works Ÿ
Excavation / Construction of retaining wall/ADB Ÿ
Bridge segment erections Ÿ
Pre-bored H-pile for Approach Ramp Ÿ
Hing Fat Street modification works |
2.5.6.
Major construction activities for
Contract no. HK/2012/08 have been commenced on March 2013. During the reporting
period, the principal work activities are summarized in Table 2.9
Table 2.9 Principal Work Activities for Contract no. HK/2012/08
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Diaphragm wall construction Ÿ
Grouting Ÿ
Construction of ELS at MVB Ÿ
Pre-bored H-pile construction |
Ÿ
Diaphragm wall construction Ÿ
Grouting Ÿ
Construction of MVB Ÿ
Pre-bored H-pile construction |
Ÿ
Diaphragm wall construction Ÿ
Grouting Ÿ
Construction of MVB Ÿ
Pre-bored H-pile construction Ÿ
Construction of concrete plug Ÿ
Excavation and lateral support installation |
2.5.7.
Major construction activities for Contract no.HY/2010/08 have been commenced
on March 2013. During the reporting period, the principal work activities are
summarized in Table 2.10
Table 2.10 Principal Work Activities for Contract no. HY/2010/08
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
Tree protection works next to existing BGO, Ÿ
Drainage improvement works, Ÿ
Sheet piling works, Ÿ
Excavation and Lateral Support for U-structure, Ÿ
Pipe piling & grouting works, Ÿ
Utility diversion works, Ÿ
Retaining wall works Ÿ
Reprovisional of Bowling Green, Ÿ
ELS works Ÿ
Diaphragm Wall, Barrette construction and king post installation works
Ÿ
D-wall drill cutting works Ÿ
Construction works for subway extension |
Ÿ
Tree protection works next to existing BGO, Ÿ
Drainage improvement works, Ÿ
Sheet piling works, Ÿ
Excavation and Lateral Support for U-structure, Ÿ
Pipe piling & grouting works, Ÿ
Utility diversion works, Ÿ
Retaining wall works Ÿ
Re-provisional of Bowling Green, Ÿ
ELS works, Ÿ
Diaphragm Wall, Barrette construction and king post installation works
Ÿ
D-wall drill cutting works Ÿ
Construction works for subway extension |
Ÿ
Tree protection works next to existing BGO, Ÿ
Drainage improvement works, Ÿ
Sheet piling works, Ÿ
Excavation and Lateral Support for U-structure, Ÿ
Pipe piling & grouting works, Ÿ
Utility diversion works, Ÿ
Retaining wall works Ÿ
Reprovisional of Bowling Green, Ÿ
ELS works, Ÿ
Diaphragm Wall, Barrette construction and king post installation works
Ÿ
D-wall drill cutting works Ÿ
Construction works for subway extension |
2.5.8.
Contract no. HY/2011/08 –Central - Wan Chai Bypass (CWB) –Tunnel
Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning
under FEP-11/364/2009B. During the reporting period, the principal work
activities are summarized in Table 2.11
Table 2.11 Principal Work Activities for Contract no. HY/2011/08
|
September
2015 |
October
2015 |
November
2015 |
|
Ÿ
West Ventilation Building Construction Ÿ
East Ventilation Shaft Construction Ÿ
Install VE panels bracket and thermal barrier for Tunnel |
Ÿ
West Ventilation Building Construction Ÿ
East Ventilation Shaft Construction Ÿ
Install VE panels bracket and thermal barrier for Tunnel |
Ÿ
West Ventilation Building Construction Ÿ
East Ventilation Shaft Construction Ÿ
Install VE panels bracket and thermal barrier for Tunnel |
2.5.9.
Implementation status of the recommended mitigation measures
during this reporting period is presented in Appendix 2.1.
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 Station
|
Station |
Description |
|
M1a |
Harbour Road Sports Centre |
|
M2b |
Noon Gun
Area |
|
M3a |
Tung Lo Wan
Fire Station |
|
M4b |
Victoria Centre |
|
M5b |
|
|
M6 |
HK |
|
*M7e |
International Finance Centre (Eastern End of Podium) |
|
M7w |
International Finance Centre (Western End of Podium) |
|
M8 |
City Hall |
* Remark 1: Location
ID has been updated from M7 to M8 for City Hall
* Remark 2: M7e has
become a reference station starting from 7 Aug 2012
Real time Noise Monitoring Stations
3.1.2.
The
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 |
RTN2a |
Electric Centre |
|
North Point |
RTN3 |
Po Leung Kuk Yu Lee Mo Fan
Memorial School |
|
Tin Hau |
RTN4 |
|
* RTN2 was relocated from
Oil Street Community Liaison Centre to Electric Centre on
05 Oct 2012 and re-designated
as RTN2a.
Noise Monitoring
Parameters, Frequency and Duration
3.1.3.
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.
3.1.4.
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.
3.1.5.
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.
3.1.6.
If
construction works are extended to include works during the hours of 1900 –
0700 as well as public holidays and Sundays, additional weekly impact
monitoring shall be carried out during respective restricted hours periods.
Applicable permits under NCO shall be obtained by the Contractor.
Monitoring Equipment
3.1.7.
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.
3.1.8.
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.
3.1.9.
The
sound level meter shall be checked using an acoustic calibrator generating a
known sound pressure level at a known frequency before deployment to the site
and during each site visit. Measurements may be accepted as valid only if the
calibration level from before and after the noise measurement agree to within
1.0 dB.
Air Quality Monitoring
Stations
3.2.1. The air quality 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 quality monitoring
Stations
|
Station ID |
Monitoring
Location |
Description |
|
CMA1b |
Oil Street Site Office* |
North Point |
|
CMA2a |
|
|
|
CMA3a |
CWB PRE Site Office |
|
|
CMA4a |
Society for the
Prevention of Cruelty to Animals |
Wan Chai |
|
CMA5b |
Pedestrian Plaza** |
Wan Chai |
|
MA1e |
International Finance Centre (Eastern End of Podium) |
Central |
|
MA1w |
International Finance Centre (Western End of Podium) |
Central |
Remarks*: The location ID of monitoring
station CMA1b was updated as “Oil Street Site Office” in
Remarks**: With respect to the area handover, the air quality
monitoring station CMA5a at Children Playgrounds opposite to the Pedestrian
Plaza was relocated to the Pedestrian Plaza on 3 December 2014. The station
reference and location ID of the air quality monitoring station CMA5a was
updated as CMA5b and Pedestrian Plaza respectively.
Air quality 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.
3.2.7. Laboratory Measurement / Analysis
3.2.8. 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.
3.2.9. 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.
4.0.1. Per EPD’s letter
dated 3 Aug 2012 (received by ET on 6 Aug 2012 through HyD), noise monitoring
at M8 – City Hall commenced on 7 Aug 2012, and the monitoring station M7e –
International Finance Centre (Eastern Podium) has become a reference station
starting from 7 Aug 2012.
4.0.2. Due to safety
concerns, the monitoring location for M4b – Victoria Centre has been finely
adjusted from 7 June 2012.
4.0.3. Monitoring for report of review baseline noise
level was performed from 11
4.0.4. The environmental monitoring will be implemented
based on the division of works areas of each designed project managed under
different contracts with separate FEP applied by individual contractors. Overall layout showing work areas of various
contracts, latest status of work commencement and monitoring stations is shown
in Figure 2.1 and Figure 3.1. The monitoring results
are presented in according to the Individual Contract(s).
4.0.5. In the reporting period, the concurrent contracts are
as follows:
Ÿ
Contract
no. HY/2009/15 – Central-Wanchai Bypass – Tunnel (
Ÿ
Contract
no. HY/2009/18 – Central –Wanchai Bypass (CWB) – Central Interchange under
FEP-05/364/2009/A