|
Contract
No: HK/2015/01 Wanchai Development Phase II and Sampling, Field Measurement and
Testing Work (Stage 3) 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
- MARCH 2016
to MAY 2016 -
|
|
CLIENTS: |
|
|
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 |
|
|
|
|
|
|
|
|
CHECKED by: |
|
|
Raymond Dai Environmental Team Leader |
|
|
DATE: |
|
|
29 June 2016 |
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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Drainage works Ÿ Road works Ÿ Landscaping works Ÿ Maintenance works |
Ÿ Drainage works Ÿ Road works Ÿ Landscaping works Ÿ Modification and Construction of Sign
Gantries / Traffic Signs Ÿ Maintenance works |
Ÿ Drainage works Ÿ Road works Ÿ Landscaping works Ÿ Modification and Construction of Sign
Gantries / Traffic Signs Ÿ Maintenance works |
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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Stage 3a backfilling works Ÿ Stage 3b backfilling works Ÿ Stage 4 demolition of the bulkhead wall
Ÿ Stage 4 construction tunnel structure Ÿ Reinstatement of outfall Ÿ Reinstatement of triangular planter at
Fenwick Pier Street |
Ÿ Stage 3a backfilling works Ÿ Stage 3b backfilling works Ÿ Stage 4 construction tunnel structure Ÿ Reinstatement of outfall Ÿ Reinstatement of triangular planter at
Fenwick Pier Street |
Ÿ Stage 3b backfilling works Ÿ Stage 4 construction tunnel structure Ÿ Reinstatement of outfall Ÿ Reinstatement of triangular planter at
Fenwick Pier Street |
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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Installation of steel angles for
trough cover Ÿ Site clearance works was on going at
OHVD at Tunnel Portion 1. Ÿ Construction of road side barriers Ÿ Construction of manhole frame &
cover, gully frame and grating Ÿ Installation of steel angles for
trough cover Ÿ Site clearance works was on going at
OHVD at Tunnel Portion 1. Ÿ Construction of road side barriers Ÿ Construction of manhole frame &
cover, gully frame and grating Ÿ 100% excavation for formation level Ÿ 100% blinding layer Ÿ 95% Waterproofing works and base slab
construction Ÿ Approximately 10% middle wall Ÿ Casting of Bored pile Ÿ Diaphragm wall panel construction Ÿ King post works Ÿ Demolition of existing Sun Hung Kai
cooling water pumping station Ÿ Demolition of the existing structure |
Ÿ Site clearance works was on going at
OHVD at Tunnel Portion 1. Ÿ Waterproofing works and base slab
construction were completed Ÿ Middle wall and side wall construction Ÿ Diaphragm wall panel construction Ÿ King post work was completed Ÿ Instrumentation work was on going |
Ÿ Site clearance works was on going at
OHVD at Tunnel Portion 1. Ÿ Site clearance works was on going at
OHVD at Tunnel Portion 2. Ÿ Waterproofing work for side wall Ÿ Middle wall and side wall construction Ÿ Tunnel top slab construction Ÿ Diaphragm wall panel construction Ÿ Instrumentation work was on going Ÿ Excavation work |
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
|
April
2016 |
May
2016 |
|
|
Ÿ Construction RC structure at TPCWAW Ÿ Dismantle steel work at TPCWAW Ÿ Remaining works inside tunnel at TS4
and TPCWAE Ÿ Remedial works at Mined Tunnel |
Ÿ Backfilling works at TPCWAW Ÿ Dismantle steel work at TPCWAW Ÿ Remaining works inside tunnel at TS4
and TPCWAE Ÿ Remedial works at Mined Tunnel Ÿ Reinstatement of Shaft B between
TPCWAW and TPCWAE |
Ÿ Dismantle steel work at TPCWAW Ÿ Remedial works at Mined Tunnel Ÿ Remedial works at TS4, TPCWAE Ÿ Reinstatement of Shaft B between
TPCWAW and TPCWAE |
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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Pier construction for IEC Ÿ Construction of EVB Ÿ Column modification at F1 to F8 Ÿ Watson Road laying of new water pipe Ÿ Oil Street drainage works Ÿ Excavation / Construction of retaining
wall Ÿ Bridge segment erections Ÿ Pre-bored H-pile for Approach Ramp Ÿ Hing Fat Street modification works Ÿ EVA Temporary works Ÿ Hing Fat Street Slip Road Bridge E
parapet construction |
Ÿ Pier construction for IEC Ÿ Construction of EVB Ÿ Column modification at F1 to F8 Ÿ Watson Road laying of new water pipe Ÿ Oil Street drainage works Ÿ Excavation / Construction of retaining
wall/Piling works/Approach Ramp Ÿ Bridge segment erections Ÿ Hing Fat Street modification works Ÿ EVA bulkhead removal Ÿ Hing Fat Street Slip Road Bridge E
parapet construction |
Ÿ Pier construction for IEC Ÿ Construction of EVB Ÿ Column modification at F1 to F8 Ÿ Oil Street drainage works Ÿ Bridge construction and segment erection Ÿ Hing Fat Street modification works Ÿ EVA structure construction Ÿ Hing Fat Street Slip Road Bridge E L3
railing construction Ÿ Approach ramp sheet piling works Ÿ EVB waterproofing 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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Grouting Ÿ Construction of MVB Ÿ Pre-bored H-pile construction Ÿ Construction of concrete plug Ÿ Excavation and lateral support
installation for CWB tunnel |
Ÿ Grouting Ÿ Construction of MVB Ÿ Pre-bored H-pile construction Ÿ Construction of concrete plug Ÿ Excavation and lateral support
installation for CWB tunnel |
Ÿ Grouting Ÿ Construction of MVB Ÿ Construction of concrete plug Ÿ Excavation and lateral support
installation for CWB tunnel Ÿ Structural works for CWB tunnel
construction |
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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Tree protection works next to existing
BGO, Ÿ Drainage improvement works, Ÿ Excavation and Lateral Support for
U-structure, Ÿ Grouting works, Ÿ Utility diversion works, Ÿ Retaining wall works Ÿ ELS works, Ÿ D-wall drill cutting works Ÿ Construction works for subway
extension Ÿ |
Ÿ Tree protection works next to existing
BGO, Ÿ Drainage improvement works, Ÿ Excavation and Lateral Support for
U-structure, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Retaining wall works Ÿ ELS 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 Excavation and Lateral Support for
U-structure, Ÿ Pipe piling & grouting works, Ÿ Utility diversion works, Ÿ Retaining wall works Ÿ ELS 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
|
March 2016 |
April 2016 |
May 2016 |
|
Ÿ Construction of Ventilation Buildings,
inclusive of Administrative Building, East Ventilation Shaft/Building, West
Ventilation Building Ÿ Construction of Tunnel Thermal Barrier Ÿ Installation of Electricals and
Mechanicals |
Ÿ Construction of Ventilation Buildings,
inclusive of Administrative Building, East Ventilation Shaft, West
Ventilation Building Ÿ Construction of Tunnel Thermal Barrier Ÿ Installation of Electricals and
Mechanicals Ÿ Installation of Tunnel Features |
Ÿ Construction of Ventilation Buildings,
inclusive of Administration Building, East Ventilation Shaft West Ventilation
Building Ÿ Construction of Tunnel Thermal Barrier Ÿ Installation of Electricals and
Mechanicals Ÿ Installation of Tunnel Features |
Noise
Monitoring
Real time Noise Monitoring
Air Quality
Monitoring
Complaints,
Notifications of Summons and Successful Prosecutions
Further information was referred by RSS
on 15 March 2016, the complainant clarified on 15 March 2016 that construction
noise was emanated from road works located between Lung Wo Road and Lung Wui
Road Interface during midnight and has lasted for one and half month resulting
in nuisance to nearby residence.
Further information was referred by RSS
on 18 March 2016, the complainant further clarified on 18 March 2016 that the
concerned location shall be Lung King Street near the parking spaces for
motorcycles and the Contract no. as stated on the publicity board is
HK/2012/08. Furthermore, the complainant identified the noise was from power
generators.
ET confirmed with the Resident Site
Staff that there was neither construction works nor operation of power
generators under Contract HK/2012/08 at the concerned location from 1900hrs to
0700hrs during the period from 23 February 2016 to 14 March 2016.
Based on the complaint information
referred by ICC on 3 March 2016, according to the relevant site records
provided by RSS, from 0800hrs to 1800hrs on both 29 February 2016 and 01 March
2016, drainage works was undertaken by Contract HK/2012/08 at Lung Wo Road and
one excavator was in operation for soil excavation. Follow up inspection was
conducted during the weekly environmental site inspection on 08 March 2016 and
no particular noise emanating works was observed.
Based on the further information
provided by the complainant on 15 March 2016, the complainant clarified on 15
March 2016 that Construction noise was emanated from road works located between
Lung Wo Road and Lung Wui Road Interface during midnight and has lasted for one
and half month resulting in nuisance to nearby residence. On 18 March 2016, the
complainant further clarified on 18 March 2016 that the concerned location
shall be Lung King Street near the parking spaces for motorcycles and the
Contract no. as stated on the publicity board is HK/2012/08. Furthermore, the
complainant identified the noise was from power generators. According to the
relevant site records provided by RSS, there was neither construction works nor
operation of power generators under Contract HK/2012/08 at the concerned
location from 1900hrs to 0700hrs during the period from 23 February 2016 to 14
March 2016.
Nevertheless, in view of the public
concern, the Contractor is recommended to maintain regular maintenance of the
plant and equipment deployed to avoid potential nuisance to the nearby public.
ET confirmed with the Resident Site
Staff that soil excavation at ELS area, Zone A2(2), was carried out, where at
approx. 100m from the waterfront of Lung King Street from 08:00 hrs to 18:00
hrs on 07 March 2016 under Contract HK/2012/08.
Two excavators were involved at that location. Erection of falsework for
culvert L was carried out near the waterfront of Lung King Street from 08:00
hrs to 18:00 hrs on 07 March 2016 under Contract HK/2012/08. One lorry crane was involved for lifting
falsework elements. Dust suppression measures including the water sprinklers
were installed along site haul road.
Regularly removed the floating refuse at
the waterfront of Lung King Street was conducted by the Contractor of
HK/2012/08. The concerned observed floating foam at the waterfront of Lung King
Street was found originating from the diverted cooling mains discharge.
According to the relevant site records
provided by RSS, soil excavation at ELS area, Zone A2(2) was carried out, where
at approx.100m from the waterfront of Lung King Street under Contract
HK/2012/08 from 08:00hrs to 18:00hrs on 07 March 2016 and two excavators were
in operation at that location while erection of falsework for culvert L was
carried out near the waterfront of Lung King Street from 08:00hrs and 18:00hrs
on 07 March 2016 under Contract HK/2012/08 and one lorry crane was involved for
lifting falsework elements. Dust suppression measures including the use of
water sprinklers along the site haul road was implemented by the Contractor of
HK/2012/08 and removal of floating refuse was regularly conducted at the
waterfront of Lung King Street by the Contractor of HK/2012/08. Upon
investigation, the concerned observed floating foam at the waterfront of Lung
King Street was found originating from the diverted cooling mains discharge.
Follow up inspection was conducted
during the weekly environmental site inspection on 15 March 2016 and dust
suppression measures including watering for haul road, tarpaulin sheet covering
for cement bags stored on site and three side and top covering for grouting
station were implemented while and no dark smoke emission from the plant and
machinery deployed on site was observed. Noise mitigation measures including
acoustic covering was implementing for excavator mounted breaker. In addition,
removal of floating refuse on site was observed implemented by the Contractor
of HK/2012/08 and no accumulation of floating refuse was found. The concerned
foam originating from diverted cooling mains discharge was observed during
inspection and the dispersion of the concerned foam of unknown chemical nature
was observed isolated from the nearby public area.
Nevertheless, in view of the public concern,
the Contractor was recommended to maintain regular checking of the plants and
equipment deployed on site to avoid potential air quality impact to the nearby
public and to maintain adequate dust suppression measures on site to avoid
potential dust impact to the surroundings. The Contractor was reminded to
maintain regular cleaning of floating refuse within the construction site area
to avoid potential nuisance to the surroundings. The Contractor was also
reminded to maintain the noise mitigation measure if breaking works would be
required. The Contractor was also suggested to reflect the observed foam to
relevant Cooling Mains owners.
ET confirmed with the Resident Site
Staff that pipe Laying works between Pier 32 and Pier 33 and excavation and
blinding works for Manhole at Pier 34 were in progress on 22 March 2016.
The observed drain hole was identified
to be the outlet point of a manhole and a section of an abandoned U-channel
(extending from the concerned manhole to the Hong Kong Electric Substation in
length along the site boundary) was adjoining the concerned manhole and sandbag
was previously placed at the U-channel at the location near the inlet point to
the concerned manhole.
Based on the site records confirmed by
RSS, pipe laying works between Pier 32 and Pier 33 and excavation and blinding
works for Manhole at Pier 34 were in progress on 22 March 2016. The observed
drain hole was identified to be the outlet point of a manhole and a section of
an abandoned U-channel (extending from the concerned manhole to the Hong Kong
Electric Substation in length along the site boundary) was adjoining the concerned
manhole and sandbag was previously placed at the U-channel at the location near
the inlet point to the concerned manhole. In addition, no site discharge point
was connected to the aforesaid U-channel and the concerned manhole. In view of
the environmental concern, the following remedial and precautionary actions
were taken by the Contractor of HY/2009/19 on 29 March 2016.
i)
Plugging the inlet point of the concerned manhole (connecting to the
abandoned U-channel) with concrete;
ii)
Plugging the outlet of the concerned manhole (connecting to the observed
drain hole) with concrete;
iii)
Filling the concerned manhole with rubbles;
iv)
Shifting the unused wastewater treatment plant around the concerned
location to other site location for use.
Follow-up inspection was conducted by
the Environmental Team on 06 April 2016. No further contaminated runoff
discharge was observed from the concerned drain hole and precautionary measures
including provision of concrete bunding was implemented along the site boundary
at the concerned location to avoid potential surface overflow. The pipe laying
works and the excavation works was found at distant location away from the
concerned drain hole with no surface drain connection and no particular
effluent was generated from the work. As such, no information indicate the
discharge was related to the above construction activities.
However, it was noted that another
section of surface drainage channel within the construction site (perpendicular
in direction to the initial identified abandoned U-channel) was also in
connection to concerned manhole and minor residue mud deposition was observed
within the surface drainage channel. Despite the above additional surface
drainage channel identified, the outlet point of concerned final manhole (in
connection with the observed drain hole) was observed plugged with concrete and
filled with rubbles as rectification measure to avoid any further contaminated
runoff discharge via the observed drain hole.
Nevertheless, the Contractor of
HY/2009/19 was reminded to conduct regular cleaning works for site surface
drainage channel to avoid accumulation of silt and soil and avoid potential
overflow by directing the surface runoff within the surface drainage channel to
proper collection point for necessary treatment prior to discharge. The
Contractor of HY/2009/19 was also reminded to check and review other surface
drainage channel within the construction site to avoid potential runoff related
impact via surface drainage channel to the nearby waters.
In addition, it was noticed that water
was discharged from a piping extending from City Garden and the discharged
water would result in seepage across the site hoarding into the abandoned
U-channel. The Contractor of HY/2009/19 was suggested to liaise with the City
Garden Management Office for proper connection of the observed pipping with
discharge to prevent further seepage water into the construction site.
ET confirmed with the Resident Site
Staff that drilling holes for installation of starter bars was carried out
under Contract HY/2009/19 at the vertical cut face of the existing IEC road
slab on 05 April 2016
Based on the site records confirmed by
RSS, drilling holes for installation of starter bars was carried out under
Contract HY/2009/19 at the vertical cut face of the existing IEC road slab on
05 April 2016 and according to the photo information provided by the EPD, no
dust suppression measures was implemented during the observed drilling works on
05 April 2016.
According to Air Pollution Control
Ordinance, for pneumatic or power-driven drilling, cutting and polishing, water
or a dust suppression chemical shall be continuously sprayed on the surface
where any pneumatic or power-driven drilling, cutting, polishing or other
mechanical breaking operation that causes dust emission is carried out, unless
the process is accompanied by the operation of an effective dust extraction and
filtering device.
Follow-up inspection was conducted on 06
April 2016, rectification actions including the use of vacuum suction to
extract dust generated during the concerned drilling works was observed
implemented by the Contractor of HY/2009/19 for starter bars drilling works.
ET confirmed with the Resident Site
Staff that the concerned tree was identified as T710 and no construction
activity in the vicinity of tree T710 on 27 March 2016 and no construction
works are required in or near its vicinity.
Based on the site records confirmed by
RSS, the concerned tree was identified as the retained tree T710 maintained
under the Contract of HY/2010/08 and the concerned tree T710 was located
outside the assessment area in the relevant Project EIA Report. No construction
works are required in the vicinity of concerned tree T710 and no construction
activity was conducted in the vicinity of tree T710 on 27 March 2016.
Nevertheless, based on RSS information, recent tree monitoring report indicates
an existing cavity at trunk and the concerned tree T710 has been recommended to
be felled in the tree risk assessment Form 2.
With respect to the observed incident of
the toppling of the concerned tree T710, the Contractor of HY/2010/08 was
instructed by RSS to remove the broken trunk/ remains to avoid impact to the
surroundings. The concerned tree T710 shall be compensated by the Contractor of
HY/2010/08 in accordance with the Development Bureau Technical Circular (Works)
No. 7/2015 and the detail on compensation would be further agreed with Victoria
Park Management Office. Follow-up inspection was conducted on 13 April 2016,
and the remaining parts of the concerned tree T710 was observed felled to avoid
further impact to nearby public road.
ET confirmed with the Resident Site
Staff that no marine construction activities or land construction activities
under Contract HK/2009/02 at the concerned location on 12 April 2016.
Surface runoff control measures
including provision of concrete bund at the concerned location was implemented
by Contract HK/2009/02.
No soil & silt deposition along the
seawall at the concerned location on 12 April 2016.
No discharge point located in the
vicinity of the concerned location under Contract HK/2009/02.
Silt curtain with buoyancy floats acting
as anchor points was installed at Monitoring Station RW21-P789 for Water
intakes.
Based on the site records confirmed by
RSS, no marine construction activities or land construction activities was
carried out under Contract HK/2009/02 at the concerned location on 12 April
2016 and no soil and silt deposition was found along the seawall at the
concerned location and precautionary measures for site runoff control including
provision of concrete bund along boundary of site area near the waterfront
around the concerned location was implemented by the Contractor HK/2009/02. In
addition, no discharge point under Contract HK/2009/02 was located in the
vicinity of the concerned location. Based on information confirmed by RSS, the
buoyancy floats deployed at the concerned location are acting as the anchor
points for the silt curtain deployed around the WQM Station RW21-P789 for the
WSD and Cooling Water Intakes group.
Follow-up inspection was conducted on 14
April 2016, no surface runoff from the construction site nor discharge of
contaminated effluent was observed around the concerned location and
precautionary measures including the provision of concrete bund at the
concerned location was observed maintained by the Contractor of HK/2009/02 and
the silt curtain deployed around the WQM station RW21-P789 was generally in
order.
In view of the public concern on the
water quality, the Contractor of HK/2009/02 was reminded to maintain effective
surface runoff protection and provide proper collection point of construction
effluent around the concerned location to avoid potential surface runoff
related impact.
ET confirmed with the Resident Site
Staff that internal transport of soil to the hopper barge for storage via
landing barge was conducted by Contractor of HK/2012/08 during 0800 hours to
1000 hours on 13 April 2016 at the sea outside the concerned location and 3
nos. of dump trucks were deployed for the operation.
Protection measure including provision
of sandbag bunding along the side of the landing barge was implemented by the
Contractor of HK/2012/08.
According to the relevant site records
provided by RSS, internal transport of soil to the hopper barge for storage via
landing barge was conducted by Contractor of HK/2012/08 during 0800 hours to
1000 hours on 13 April 2016 at the sea outside the concerned location and 3
nos. of dump trucks were deployed for the operation. Protection measure
including provision of sandbag bunding along the side of the landing barge was
implemented by the Contractor of HK/2012/08. In addition, amber rainstorm
warning signal was hoisted from 0630 hours to 1200 hours on 13 April 2016 and
during the above time period, muddy water was observed from the upstream of
culvert L outside the HK/2012/08 site.
Follow up inspection was conducted on 19
April 2016, protection measures including provision of sandbag bunding along
the side of the landing barge was implemented and no mud or soil deposition was
observed along the seawall and no discharge point was located within the
temporary water channel connecting the Culvert L outfall location to the
Victoria Harbour. In addition, piling works was observed at the north side of
Zone A1 on 19 April 2016 and construction effluent collection from piling work
via sedimentation tank to wastewater treatment facility was implemented and
steel barrier was installed around the piling works area to mitigate against
potential surface runoff related impact.
Nevertheless, in view of the public
concern, the Contractor was reminded to maintain adequate perimeter embankment
protection along the seawall boundary and maintain proper construction effluent
collection system to avoid potential runoff related impact to nearby waters.
ET confirmed with the Resident Site
Staff that a generator deployed under Contract HK/2009/02 near the covered
walkway for Wanchai Ferry Pier at Portion 2 area and was operated from 1900hrs
on 24 May 2016 to 0700hrs on 25 May 2016 and from 1900hrs on 25 May 2016 to
0700hrs on 26 May 2016. The generator was used for the power supply of lighting
inside Tunnel Portions 1 and 2.
According to the relevant site records
provided by RSS, a generator deployed under Contract HK/2009/02 near the
covered walkway for Wanchai Ferry Pier at Portion 2 area and was operated from
1900hrs on 24 May 2016 to 0700hrs on 25 May 2016 and from 1900hrs on 25 May
2016 to 0700hrs on 26 May 2016. The generator was used for the power supply of
lighting inside Tunnel Portions 1 and 2. Based on review on site information,
relevant Construction Noise Permits GW-RS0516-16 and GW-RS0390-16 for the
operation of the concerned generator were confirmed in place while no sufficient
site information was considered available to demonstrate the use of acoustic
enclosure for the operation of the generator following the special condition 3d
item 4. Despite the above, the Contractor of HK/2009/02 has suspended the use
of the generator at the concerned location after 2300hours to minimize
potential noise concern to the surroundings from 28 May 2016.
Nevertheless, the Contractor of
HK/2009/02 was reminded to upkeep the site control system for construction
works carried out during restricted hours and night time for Construction Noise
Permit compliance and maintain regular maintenance of the plant and equipment
deployed to avoid potential nuisance to the nearby public.
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 27 February
2016 to 26 May 2016.
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 |
10 March 2014 |
|
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. Rex Chan |
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 |
Mr. Andrew Wong |
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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Drainage works Ÿ
Road works Ÿ
Landscaping works Ÿ
Maintenance works |
Ÿ
Drainage works Ÿ
Road works Ÿ
Landscaping works Ÿ
Modification and Construction of Sign Gantries / Traffic Signs Ÿ
Maintenance works |
Ÿ
Drainage works Ÿ
Road works Ÿ
Landscaping works Ÿ
Modification and Construction of Sign Gantries / Traffic Signs Ÿ
Maintenance works |
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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Stage 3a backfilling works Ÿ
Stage 3b backfilling works Ÿ
Stage 4 demolition of the bulkhead wall Ÿ
Stage 4 construction tunnel structure Ÿ
Reinstatement of outfall Ÿ
Reinstatement of triangular planter at Fenwick Pier Street |
Ÿ
Stage 3a backfilling works Ÿ
Stage 3b backfilling works Ÿ
Stage 4 construction tunnel structure Ÿ
Reinstatement of outfall Ÿ
Reinstatement of triangular planter at Fenwick Pier Street |
Ÿ
Stage 3b backfilling works Ÿ
Stage 4 construction tunnel structure Ÿ
Reinstatement of outfall Ÿ
Reinstatement of triangular planter at Fenwick Pier Street |
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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Installation of steel angles for trough cover Ÿ
Site clearance works was on going at OHVD at Tunnel Portion 1. Ÿ
Construction of road side barriers Ÿ
Construction of manhole frame & cover, gully frame and grating Ÿ
Installation of steel angles for trough cover Ÿ
Site clearance works was on going at OHVD at Tunnel Portion 1. Ÿ
Construction of road side barriers Ÿ
Construction of manhole frame & cover, gully frame and grating Ÿ
100% excavation for formation level Ÿ
100% blinding layer Ÿ
95% Waterproofing works and base slab construction Ÿ
Approximately 10% middle wall Ÿ
Casting of Bored pile Ÿ
Diaphragm wall panel construction Ÿ
King post works Ÿ
Demolition of existing Sun Hung Kai cooling water pumping station Ÿ
Demolition of the existing structure |
Ÿ
Site clearance works was on going at OHVD at Tunnel Portion 1. Ÿ
Waterproofing works and base slab construction were completed Ÿ
Middle wall and side wall construction Ÿ
Diaphragm wall panel construction Ÿ
King post work was completed Ÿ
Instrumentation work was on going |
Ÿ
Site clearance works was on going at OHVD at Tunnel Portion 1. Ÿ
Site clearance works was on going at OHVD at Tunnel Portion 2. Ÿ
Waterproofing work for side wall Ÿ
Middle wall and side wall construction Ÿ
Tunnel top slab construction Ÿ
Diaphragm wall panel construction Ÿ
Instrumentation work was on going Ÿ
Excavation work |
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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Construction RC structure at TPCWAW Ÿ
Dismantle steel work at TPCWAW Ÿ
Remaining works inside tunnel at TS4 and TPCWAE Ÿ
Remedial works at Mined Tunnel |
Ÿ
Backfilling works at TPCWAW Ÿ
Dismantle steel work at TPCWAW Ÿ
Remaining works inside tunnel at TS4 and TPCWAE Ÿ
Remedial works at Mined Tunnel Ÿ
Reinstatement of Shaft B between TPCWAW and TPCWAE |
Ÿ
Dismantle steel work at TPCWAW Ÿ
Remedial works at Mined Tunnel Ÿ
Remedial works at TS4, TPCWAE Ÿ
Reinstatement of Shaft B between TPCWAW and TPCWAE |
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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Pier construction for IEC Ÿ
Construction of EVB Ÿ
Column modification at F1 to F8 Ÿ
Watson Road laying of new water pipe Ÿ
Oil Street drainage works Ÿ
Excavation / Construction of retaining wall Ÿ
Bridge segment erections Ÿ
Pre-bored H-pile for Approach Ramp Ÿ
Hing Fat Street modification works Ÿ
EVA Temporary works Ÿ
Hing Fat Street Slip Road Bridge E parapet construction |
Ÿ
Pier construction for IEC Ÿ
Construction of EVB Ÿ
Column modification at F1 to F8 Ÿ
Watson Road laying of new water pipe Ÿ
Oil Street drainage works Ÿ
Excavation / Construction of retaining wall/Piling works/Approach Ramp Ÿ
Bridge segment erections Ÿ
Hing Fat Street modification works Ÿ
EVA bulkhead removal Ÿ
Hing Fat Street Slip Road Bridge E parapet construction |
Ÿ
Pier construction for IEC Ÿ
Construction of EVB Ÿ
Column modification at F1 to F8 Ÿ
Oil Street drainage works Ÿ
Bridge construction and segment
erection Ÿ
Hing Fat Street modification works Ÿ
EVA structure construction Ÿ
Hing Fat Street Slip Road Bridge E L3 railing construction Ÿ
Approach ramp sheet piling works Ÿ
EVB waterproofing 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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Grouting Ÿ
Construction of MVB Ÿ
Pre-bored H-pile construction Ÿ
Construction of concrete plug Ÿ
Excavation and lateral support installation for CWB tunnel |
Ÿ
Grouting Ÿ
Construction of MVB Ÿ
Pre-bored H-pile construction Ÿ
Construction of concrete plug Ÿ
Excavation and lateral support installation for CWB tunnel |
Ÿ
Grouting Ÿ
Construction of MVB Ÿ
Construction of concrete plug Ÿ
Excavation and lateral support installation for CWB tunnel Ÿ
Structural works for CWB tunnel construction |
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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Tree protection works next to existing BGO, Ÿ
Drainage improvement works, Ÿ
Excavation and Lateral Support for U-structure, Ÿ
Grouting works, Ÿ
Utility diversion works, Ÿ
Retaining wall works Ÿ
ELS works, Ÿ
D-wall drill cutting works Ÿ
Construction works for subway extension Ÿ
|
Ÿ
Tree protection works next to existing BGO, Ÿ
Drainage improvement works, Ÿ
Excavation and Lateral Support for U-structure, Ÿ
Pipe piling & grouting works, Ÿ
Utility diversion works, Ÿ
Retaining wall works Ÿ
ELS 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
Excavation and Lateral Support for U-structure, Ÿ
Pipe piling & grouting works, Ÿ
Utility diversion works, Ÿ
Retaining wall works Ÿ
ELS 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
|
March
2016 |
April
2016 |
May
2016 |
|
Ÿ
Construction of Ventilation Buildings, inclusive of Administrative
Building, East Ventilation Shaft/Building, West Ventilation Building Ÿ
Construction of Tunnel Thermal Barrier Ÿ
Installation of Electricals and Mechanicals |
Ÿ
Construction of Ventilation Buildings, inclusive of Administrative
Building, East Ventilation Shaft, West Ventilation Building Ÿ
Construction of Tunnel Thermal Barrier Ÿ
Installation of Electricals and Mechanicals Ÿ
Installation of Tunnel Features |
Ÿ
Construction of Ventilation Buildings, inclusive of Administration
Building, East Ventilation Shaft West Ventilation Building Ÿ
Construction of Tunnel Thermal Barrier Ÿ
Installation of Electricals and Mechanicals Ÿ
Installation of Tunnel Features |
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
Ÿ
Contract
no. HY/2009/19 – Central – Wanchai Bypass Tunnel (North Point
Section) and Island Eastern Corridor Link under FEP-07/364/2009
Ÿ
Contract
no. HK/2009/01 –Wanchai Development Phase II – Central –Wanchai Bypass at Hong
Kong Convention and Exhibition Centre under FEP-02/364/2009
Ÿ
Contract
no. HK/2009/02 Wanchai Development Phase II – Central- Wanchai Bypass at Wanchai
East under FEP-01/364/2009
Ÿ
Contract
no. HK/2012/08 – Wan Chai Development Phase II – Central- Wan Chai Bypass at
Wan Chai West under FEP-09/364/200/B
Ÿ
Contract
no. HY/2010/08 – Central and WanChai Bypass – Slip road 8 Section under
FEP-10/364/2009/B
Ÿ Contract no. HY/2011/08 –Central - Wan
Chai Bypass (CWB) –Tunnel Buildings, Systems and Fittings, and Works Associated
with Tunnel Commissioning under FEP-11/364/2009/B
Contract no.
HY/2009/18 – Central – Wanchai Bypass (CWB) – Central Interchange under
FEP-05/364/2009/A
4.1.1.
Noise
monitoring for the Central Interchange works under contract no. HY/2009/18 was
commenced on 22
Table
4.1
Noise Monitoring Station for Contract no. HY/2009/18
|
Station |
Description |
|
*M7e |
International Finance Centre (Eastern End of Podium) |
|
M7w |
International Finance Centre (Western End of Podium) |
|
M8 |
City Hall |
* Remark: M7e has become a reference station starting from 7 Aug 2012
4.1.2. No exceedance was recorded in this
reporting quarter.
4.1.3. Noise
monitoring results measured in this reporting period are reviewed and
summarized. Details of noise monitoring
results and graphical presentation can be referred in Appendix 4.1.
Contract no. HK/2009/01 - Wanchai Development Phase
II - Central - Wanchai Bypass at Hong Kong Convention and Exhibition Centre -
Tunnel Works under FEP-02/364/2009 and Contract no. HK/2009/02 - Wanchai
Development Phase II - Central - Wanchai Bypass at Wanchai East (CWB Tunnel)
under FEP-01/364/2009
4.1.4.
The
commencement of construction works for Contract no. HK/2009/01 under
FEP-02/364/2009 is on 25 August 2011
and HK/2009/02 under FEP-01/364/2009 is on 26
Table
4.2
Noise
Monitoring Stations
for Contract nos. HK/2009/01 and HK/2009/02
|
Station |
Description |
|
M1a |
Harbour Road Sports Centre |
Reporting Month
of March 2016
4.1.1
Three limit level
exceedances were recorded at M1a- Harbour Road Sports Centre on 02, 08 and 15 March 2016 in this
reporting month.
4.1.2
Operation of multiple air compressor at Ex-
Wan Chai Swimming Pool (adjacent to Habour Road Sports Centre directly opposite
to the monitoring station) under non WDII-CWB Contractor was observed as the
major noise contribution during monitoring on 02 and 08 March 2016 while operation
of multiple air compressor and piling works at Ex- Wan Chai Swimming Pool
(adjacent to Habour Road Sports Centre directly opposite to the monitoring
station) under non WDII-CWB Contractor as major noise contribution during
monitoring on 15 March 2016. As such,
the exceedances were considered as non-Project related.
Reporting Month
of April 2016
4.1.5.
Two limit level exceedances were recorded at M1a- Harbour Road Sports
Centre on 29 March 2016 and 12 April 2016 in this reporting month.
4.1.6.
Operation of multiple air compressor at Ex- Wan Chai Swimming Pool
(adjacent to Habour Road Sports Centre directly opposite to the monitoring
station) under non WDII-CWB Contractor was observed as the major noise
contribution during monitoring on 29 March 2016 while breaking works at Ex- Wan
Chai Swimming Pool (adjacent to Habour Road Sports Centre directly opposite to
the monitoring station) under non WDII-CWB Contractor as major noise
contribution during monitoring on 12 April 2016. As such, the exceedances were considered as
non-Project related.
Reporting Month
of May 2016
4.1.7.
Two limit level
exceedances were recorded at M1a- Harbour Road Sports Centre on 04 and 24 May 2016 in this
reporting month.
4.1.8.
Breaking works at Ex- Wan Chai Swimming Pool
(adjacent to Harbour Road Sports Centre directly opposite to the monitoring
station) under non WDII-CWB Contractor was observed as the major noise
contribution during monitoring on 04 May 2016 while operation of Hydromil Trench Cutter at
Ex- Wan Chai Swimming Pool (adjacent to Harbour Road Sports Centre directly
opposite to the monitoring station) under non WDII-CWB Contractor as major
noise contribution during monitoring on 24 May 2016. As such, the exceedances were considered as
non-Project related.
4.1.9. Noise
monitoring results measured in this reporting period are reviewed and
summarized. Details of noise monitoring
results and graphical presentation can be referred in Appendix 4.1.
Contract no.
HY/2009/15 - Central-Wanchai Bypass – Tunnel (
4.1.10.
The
commencement of construction works for Contract no. HY/2009/15 under
FEP-06/364/2009/A was on 13 July 2011. Noise
monitoring was commenced on 13 July 2011. The proposed
division of noise monitoring stations are summarized in Table 4.3 below.
Table
4.3
Noise Monitoring
Station for Contract nos. HY/2009/15
|
Station |
Description |
|
M2b |
Noon Gun Area |
|
M3a |
Tung Lo Wan Fire Station |
4.1.11.
No action or limit level exceedance was recorded in this reporting quarter.
4.1.12. Details of
noise monitoring results and graphical presentation can be referred in Appendix 4.1.
Contract no. HY/2009/19 - Central -
Wanchai Bypass Tunnel (North Point Section) and Island Eastern Corridor Link
under FEP-07/364/2009/D
4.1.13. Noise monitoring for the tunnel works under
contract no. HY/2009/19 was commenced on 24
Table 4.4
Noise Monitoring
Stations for Contract no. HY/2009/19
|
Station |
Description |
|
M4b |
Victoria Centre |
|
M5b |
|
|
M6 |
HK |
Reporting Month
of March 2016
4.1.14.
No action or limit level exceedance was
recorded in this reporting month.
Reporting Month
of April 2016
4.1.15.
Two limit level exceedances were recorded at
M6 – HK Baptist Church Henrietta Secondary School on 11 and 19 April 2016 in
the reporting month.
4.1.16.
Traffic noise was observed during monitoring on
11 and 19 April 2016 and it was considered as the major noise contribution. As
such, the limit level exceedances were concluded as non-project related.
Reporting Month
of May 2016
4.1.17.
No action or limit level exceedance was
recorded in this reporting month.
4.1.18. Noise
monitoring results measured in this reporting period are reviewed and
summarized. Details of noise monitoring
results and graphical presentation can be referred in Appendix 4.1 and the Notification of Exceedance can be
referred in Appendix 6.2.
Contract no. HY/2010/08 –
Central-Wanchai Bypass –Wanchai Bypass Tunnel (Slip Raod 8 Section) under FEP-09/364/2009/B
4.1.19. The commencement of construction works
for Contract no. HY/2010/08 under FEP-10/364/2009/B was on 02 September 2013.
Noise monitoring was commenced on 02 September 2013. The proposed divisions of
noise monitoring stations are summarized in Table 4.5 below.
Table 4.5
Noise Monitoring Stations
for Contract
no. HY/2010/08
|
Station |
Description |
|
M3a |
Tung Lo Wan Fire Station |
4.1.20.
No action or limit level exceedance was recorded in this reporting quarter.
4.1.21.
Noise monitoring results measured in this reporting period are reviewed
and summarized. Details of noise
monitoring results and graphical presentation can be referred in Appendix
4.1.
Contract no.
HY/2011/08 – Central - Wan Chai Bypass (CWB) – Tunnel Buildings, Systems and
Fittings, and Works Associated with Tunnel Commissioning
4.1.22. Noise monitoring for the Central Interchange
works under contract no. HY/2009/18 was commenced on 22 April 2011.The proposed
division of noise monitoring stations for Contract no. HY/2009/18 are
summarized in Table 4.6 below:
Table 4.6 Noise
Monitoring Stations for
Contract no. HY/2011/08
|
Station |
Description |
|
M4b |
Victoria Centre |
|
*M7e |
International Finance Centre (Eastern End of
Podium) |
|
M7w |
International Finance Centre (Western End of
Podium) |
|
M8 |
City Hall |
*
Remark: M7e has become a reference station starting from 7 Aug 2012
4.1.23.
No action or limit level exceedance was recorded in this reporting quarter.
4.1.24.
Noise monitoring results measured in this reporting period are reviewed
and summarized. Details of noise
monitoring results and graphical presentation can be referred in Appendix 4.1.
Contract no.
HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link under FEP-07/364/2009/D
4.2.1.
Real
time noise monitoring results measured in this reporting period are reviewed
and summarized. Details
of real time noise monitoring results and graphical presentation can be
referred to Appendix 4.2
4.2.2.
The
proposed division of noise monitoring stations are summarized in Table 4.7
below. Real time noise monitoring for major construction works under contract
no. HY/2009/19 was commenced on 24
Table 4.7 Real Time Noise
Monitoring Stations
for Contract no. HY/2009/19
|
Location ID |
District |
Description |
|
RTN1 |
Tin Hau |
FEHD Hong Kong Transport Section Whitefield Depot |
|
RTN2a |
North Point |
Electric Centre
(Replacement of RTN2) |
|
RTN3 |
North Point |
Pok Leung Kuk Yu |
|
RTN4 |
Tin Hau |
|
* Real time noise monitoring results and graphical presentation during
night time period are for information only.
*Real-time noise monitoring results and graphical presentation for RTN3
during restricted hours are for information only as no night classes were
conducted at the educational institute.
Reporting month of March
2016
4.2.3.
No limit level exceedance was recorded at RTN1-FEHD Hong Kong Transport Section
Whitfield Depot in the reporting month.
4.2.4.
Limit level exceedances were recorded at RTN2a-Electric Centre on 01 and 02
March 2016 during daytime in the reporting month. On 01 March 2016, sheet
piling and excavation works were undertaken by Contract HY/2009/19 and
mitigation measures including erection of temporary noise barrier was
implemented while roof top cleaning works by non-CWB Contractor was undertaken
immediately next to the noise monitoring station and was considered as major
noise contribution. On 02 March 2016, sheet piling, excavation and concreting
works were undertaken by Contract HY/2009/19 and noise mitigation measures
including the erection of noise barrier was implemented while roof top floor
cleaning works at the roof top by non-CWB Contractor was undertaken immediately
next to the noise monitoring station and was considered as major noise
contribution. As such, the exceedances were considered as non-Project related.
4.2.5.
No limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School in the reporting month.
4.2.6.
No limit level exceedances were recorded at
RTN4-Causeway Bay Community Centre in the reporting month.
Reporting month of April
2016
4.2.7.
No limit level exceedance was recorded at RTN1-FEHD Hong Kong Transport Section
Whitfield Depot in the reporting month.
4.2.8.
Limit level exceedances were recorded at RTN2a-Electric Centre on 02, 05, 06,
08, 21, 23, 25 and 26 April 2016 during daytime in the reporting month. On 02,
05 and 06 April 2016, only installation of pre-cast parapet, pipe laying works
and concreting of blinding layer for pipe laying were undertaken by Contract
HY/2009/19, no major noise concern of the works was considered. On 08 April
2016, excavation and backfilling works and erection of concrete surround were
conducted and no major noise concern was considered for the works. On 23 April
2016, backfilling works and concreting for manhole cover were conducted and no
major noise concern was considered for the works. On 21, 25 and 26 April 2016, concreting
and excavation for drain pipe were conducted and no major noise concern was
considered for the works. Nevertheless,
roof top water proofing works by non-CWB Contractor was undertaken immediately
next to the noise monitoring station across the monitoring period across April
2016 and was considered as major noise contribution As such, the exceedances
were considered as non-Project related.
4.2.9.
Limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School on 13, 18 and 25 April 2016 in the
reporting month. On 13, 18 and 25 April 2016 during the monitoring period, no
construction works was undertaken under Contract HY/2009/19. Nevertheless,
based on relevant data from Hong Kong observatory, adverse weather condition
with significant rainfall was recorded on 13, 18 and 25 April 2016 and
thunderstorm warning signal was hoisted on 13 and 25 April 2016 and considered
as the major noise contribution. As such, the exceedances were considered as
non-project related.
4.2.10.
Limit level exceedances were recorded at
RTN4-Causeway Bay Community Centre on 08 and 09 April 2016 in the reporting
month. On 8 April 2016, minor vertical face drilling works was conducted and on
09 April 2016 crosshead concreting was conducted under HY/2009/19. In view of
the same construction sequence of vertical face drilling was extended to other
time period with no noise emanation recorded and drilling works immediately
next to the monitoring station by non-CWB Contractor for external panel
installation at Causeway Bay Community Centre was conducted on the monitoring
date, the exceedances were considered as non- Project related.
Reporting month
of May 2016
4.2.11.
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
4.2.12.
No limit level exceedances
were recorded at RTN2a-Electric Centre in the reporting month.
4.2.13.
Limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School on 27 April 2016, 3 and 10 May2016 in the
reporting month. On 27 April 2016 during the monitoring period, no construction
works was undertaken under Contract HY/2009/19 and cast-in-item installation
and erection of formwork was conducted under Contract HY/2009/19 on 03 and 10
May 2016 respectively. Based on relevant data from Hong Kong observatory,
adverse weather condition with significant rainfall was recorded on 27 April
2016 amber rainstorm warning signal and red rainstorm warning signal was
hoisted on 03 and 10 May 2016 respectively and considered as the major noise
contribution. As such, the exceedances were considered as non-project related.
4.2.14.
Limit level exceedances were recorded at RTN4-Causeway Bay Community
Centre on 04 May 2016 in the reporting month. On 04 May 2016, segment
installation was conducted under HY/2009/19 while external panel installation
works was observed undertaken by non-CWB Contractor at Causeway Bay Community
Centre near the monitoring station and considered as the major noise
contribution. As such, the exceedance was considered as non- Project related.
4.2.15.
Real
time noise monitoring results measured in this reporting quarter are reviewed
and summarized. Details of real time noise monitoring results and graphical
presentation can be referred to Appendix 4.2
Contract no.
HY/2011/08 – Central - Wan Chai Bypass (CWB) – Tunnel Buildings, Systems and
Fittings, and Works Associated with Tunnel Commissioning
4.2.16.
The proposed division of noise monitoring
stations are summarized in Table 4.8 below. Real time noise
monitoring for major construction works under contract no. HY/2011/08 was
commenced on 19 March 2015.
Table 4.8 Real
Time Noise
Monitoring Stations for Contract
no. HY/2011/08
|
Location ID |
District |
Description |
|
RTN1 |
Tin Hau |
FEHD
Hong Kong Transport Section Whitfield Depot |
|
RTN2a1 |
North Point |
Hong
Kong Electric Centre |
* Real time noise monitoring results and graphical presentation during
restrict hours and night time period are for information only and noise during
CNP period shall be controlled under NCO.
Remarks 1: With
respect to the possession of site area Portion Xa and Portion Xb since 7 March
2016 as confirmed by CWB RSS, real time
noise monitoring station RTN2a was associated with Contract no. HY/2011/08 from
07 March 2016 onwards
Reporting month of March 2016
4.2.17.
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
4.2.18.
Limit level exceedances were recorded at
RTN2a- Electric Centre on 01 and 02 March 2016 during daytime in the reporting
month. No construction works was undertaken under Contract HY/2011/08 while
roof top floor cleaning works at the roof top by non-CWB Contractor was
undertaken immediately next to the noise monitoring station and was considered
as major noise contribution. As such, the exceedances were considered as
non-Project related.
Reporting month of April 2016
4.2.19.
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
4.2.20.
Limit level exceedances
were recorded at RTN2a-Electric Centre on 02, 05, 06, 08, 21, 23, 25 and 26
April 2016 during daytime in the reporting month. No construction works was
undertaken under Contract HY/2011/08 on 02, 05, 06, 08, 21, 23 April 2016. On
25 April 2016, site formation with one excavator in operation and on 26 April
2016, manual rebar installation with coupler was conducted and no major noise
concern was considered for the above works Nevertheless, roof top water
proofing works by non-CWB Contractor was undertaken immediately next to the noise
monitoring station across the monitoring period across April 2016 and was
considered as major noise contribution As such, the exceedances were considered
as non-Project related.
Reporting month of May 2016
4.2.21.
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
4.2.22.
No limit level exceedances
were recorded at RTN2a-Electric Centre in the reporting month.
4.2.23.
Real
time noise monitoring results measured in this reporting quarter are reviewed
and summarized. Details of real time noise monitoring results and graphical
presentation can be referred to Appendix 4.2
4.3.1 Due to extension of site boundary by
contractor of HY/2009/19, location of air quality monitoring station CMA1b –
Oil Street Community Liaison Centre has been finely adjusted on 21
Contract no.
HY/2009/18 - Central - Wan Chai Bypass (CWB) – Central Interchange under
FEP-05/364/2009/A
4.3.2
Air quality monitoring for the Central
Interchange works under contract no. HY/2009/18 was commenced on 21 April 2011.
The proposed division of air quality monitoring stations are summarized in Table
4.9 below.
Table 4.9
Air quality monitoring
Stations for Contract no. HY/2009/18
|
Station |
Description |
|
MA1e |
International Finance Centre (Eastern End of Podium) |
|
MA1w |
International Finance Centre (Western End of Podium) |
4.3.3
No action or limit level exceedance was
recorded in the reporting period.
4.3.4
Air quality monitoring results measured in this reporting period are
reviewed and summarized. Details of air quality monitoring
results and graphical presentation can be referred in Appendix 4.3.
Contract no. HK/2009/01 - Wan Chai Development
Phase II - Central - Wan Chai Bypass at
4.3.5
The
commencement of construction works for Contract no. HK/2009/01 under
FEP-02/364/2009 is on 25 August 2011. The
proposed division of air quality monitoring stations are summarized in Table
4.10 below.
Table 4.10
Air quality monitoring
Station for Contract no. HK/2009/01
|
Station |
Description |
|
CMA5b |
Pedestrian Plaza |
Reporting month
of March 2016
4.3.6
No action or limit level exceedance was
recorded in this reporting month.
Reporting month
of April 2016
4.3.7
One action level exceedance was recorded at
monitoring station CMA5b on 14 April 2016 during 1hr TSP monitoring in the
reporting month.
4.3.8
Only work activities within tunnel section
and no construction activities at ground was undertaken on the monitoring date
around Pedestrian Plaza under Contract HK/2009/01 and no particular observation
regarding air quality impact was observed during sampling. In view of the
above, the action level exceedance was considered to be non-project related and
contributed by local ambient condition.
Reporting month
of May 2016
4.3.9
No action or limit level exceedance was recorded
in this reporting month.
4.3.10 Air quality monitoring results measured in this
reporting period are reviewed and summarized.
Details of air quality monitoring results and graphical presentation can
be referred in Appendix 4.3.
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
4.3.11 The commencement of construction works for
HK/2009/02 under FEP-01/364/2009 is on 26
Table
4.11
Air quality monitoring
Station for Contract no. HK/2009/02
|
Station |
Description |
|
CMA4a |
Society for the Prevention of Cruelty to Animals |
4.3.12
No action or limit level exceedance was
recorded in the reporting period.
4.3.13 Air quality monitoring results measured in this
reporting period are reviewed and summarized.
Details of air quality monitoring results and graphical presentation can
be referred in Appendix 4.3.
Contract no.
HY/2009/15 - Central-Wanchai Bypass – Tunnel (
4.3.14
The
commencement of construction works for Contract no. HY/2009/15 under
FEP-06/364/2009/A was on 13 July 2011. The proposed division of air
quality monitoring stations are summarized in Table 4.12
below.
Table 4.12 Air quality monitoring Station for Contract no. HY/2009/15
|
Station |
Description |
|
CMA3a |
CWB site office at Wanchai
Waterfront Promenade |
4.3.15
No action or limit level exceedance was
recorded in the reporting period.
4.3.16 Air quality monitoring results measured
in this reporting period are reviewed and summarized. Details of air quality monitoring results and
graphical presentation can be referred in Appendix 4.13.
Contract no.
HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link under FEP-07/364/2009/D
4.3.17 Air quality monitoring for the tunnel works was
commenced on 26
Table
4.13
Air quality monitoring
Stations
for Contract no. HY/2009/19
|
Station |
Description |
|
CMA1b |
Oil Street Site Office |
|
CMA2a |
|
4.3.18
No action or limit level exceedance was recorded
in the reporting period.
4.3.19
Air quality monitoring results measured in this reporting period are
reviewed and summarized. Details of air quality monitoring results and graphical presentation can
be referred in Appendix 4.3.
Contract
no. HK/2012/08- Wan Chai Development Phase II – Central-Wan Chai Bypass at Wan
Chai West
4.3.20
The commencement of construction works for
Contract no. HK/2012/08 under FEP-09/364/2009/C was on May 2014. Air quality
monitoring was commenced on 14 July 2011. The proposed division of air quality
monitoring stations are summarized in Table 4.14 below.
Table 4.14
Air quality monitoring
Station for Contract
no. HK/2012/08
|
Station |
Description |
|
CMA5b |
Pedestrian
Plaza |
Reporting month of March 2016
4.3.21
No action or limit level exceedance was
recorded in this reporting month.
Reporting month of April 2016
4.3.22
One action level exceedance was recorded at
monitoring station CMA5b on 14 April 2016 during 1hr TSP monitoring in the
reporting month.
4.3.23
After investigation, formwork erection and
internal transfer of excavated material were undertaken on the monitoring date
at around Pedestrian Plaza under Contractor of HK/2012/08, dust suppression
measure including haul road and excavated soil maintained in dampened condition
were implemented and no particular observation regarding air quality impact was
observed during sampling. In view of the above, the action level exceedance was
considered to be non-project related and contributed by local ambient
condition.
Reporting month of May 2016
4.3.24
No action or limit level exceedance was
recorded in this reporting month.
4.3.25
Air quality monitoring results measured in this reporting period are
reviewed and summarized. Details of air quality monitoring results and
graphical presentation can be referred in Appendix 4.3.
Contract no. HY/2010/08 – Central-Wanchai Bypass –Wanchai Bypass Tunnel
(Slip Raod 8 Section) under FEP-09/364/2009/B
4.3.26
The commencement of construction works for
Contract no. HY/2010/08 under FEP-09/364/2009/B was on July 2014. Air quality
monitoring was commenced on 14 July 2011. The proposed division of air quality
monitoring stations are summarized in Table 4.15 below.
Table 4.15
Air quality monitoring
Station for Contract
no. HY/2010/08
|
Station |
Description |
|
CMA3a |
CWB
PRE Site Office |
4.3.27
No action or limit level exceedance was
recorded in the reporting period.
4.3.28
Air quality monitoring results measured in this reporting period are
reviewed and summarized. Details of air quality monitoring results and
graphical presentation can be referred in Appendix 4.3.
Contract no. HY/2011/08 – Central - Wan Chai
Bypass (CWB) – Tunnel Buildings, Systems and Fittings, and Works Associated
with Tunnel Commissioning
4.3.29
Air quality monitoring for the Central
Interchange works under contract no. HY/2011/08 was commenced on 21 April 2011.
The proposed division of air quality monitoring stations are summarized in Table
4.16 below.
Table 4.16 Air quality monitoring
Stations for Contract
no. HY/2011/08
|
Station |
Description |
|
MA1e |
International
Finance Centre (Eastern End of Podium) |
|
MA1w |
International
Finance Centre (Western End of Podium) |
|
CMA1b |
Oil
Street Site Office |
|
CMA2a |
Causeway
Bay Community Centre |
4.3.30
No action or limit level exceedance was
recorded in the reporting period.
4.3.31
Air quality monitoring results measured in this reporting period are
reviewed and summarized. Details of air quality monitoring results and
graphical presentation can be referred in Appendix 4.3.
Contract no. HK/2009/01 - Wan Chai Development
Phase II - Central - Wan Chai Bypass at
4.4.1.
Inert
and non-inert C&D waste was disposed of in this reporting period. Details
of the waste flow table are summarized in Table 4.17.
Table
4.17 Details of Waste Disposal for Contract no. HK/2009/01
|
Inert C&D materials
disposed |
1661.15 |
107791.73 |
TKO137, TM38 |
|
Inert C&D materials
recycled |
439.5 |
98512.03 |
N/A |
|
Non-inert C&D
materials disposed |
333.14 |
4590.2 |
SENT Landfill |
|
Non-inert C&D
materials recycled |
91905 |
1209071 |
N/A |
|
Chemical waste disposed |
Nil |
10400 |
Kwun Kee (Chemical Waste Collector) |
|
Marine Sediment (Type 1- Open Seas
Disposal), m3 |
Nil |
11527 |
South of Cheung Chau |
|
Marine Sediment (Type 1 – Open Sea Disposal
(Dedicate Sites) & Type 2 – Confined Marine Disposal) , m3 |
Nil |
16261 |
East
of Cha Chau South
Brothers |
Remarks:
The cumulative amount of inert C&D materials recycled was clarified in the
reporting quarterly
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
4.4.2.
Inert and non-inert C&D waste were disposed of in this reporting
period. Details of the waste flow table are summarized in Table 4.18.
Table 4.18 Details of Waste Disposal for Contract no.
HK/2009/02
|
Inert C&D materials
disposed |
15844 |
483137.412 |
TKO137, TM 38 |
|
Inert C&D materials
recycled |
Nil |
46520 |
WCR2 |
|
Non-inert C&D
materials disposed |
436 |
2792.317 |
SENT Landfill |
|
Non-inert C&D
materials recycled |
Nil |
N/A |
N/A |
|
Chemical waste disposed |
Nil |
17718 |
N/A |
|
Marine Sediment (Type 1
– Open Sea Disposal) , m3 |
Nil |
27889 |
South Cheung Chau |
Contract no. HY/2009/18 - Central - Wan Chai Bypass
(CWB) – Central Interchange under FEP-05/364/2009/A
4.4.3.
Inert and non-inert C&D waste was disposed of in this reporting
period. Details of the waste flow table are summarized in Table 4.19.
Table 4.19 Details of Waste Disposal for
Contract no. HY/2009/18
|
Inert C&D materials
disposed |
1752.96 |
140233.94 |
T.K.O. 137 |
|
Inert C&D materials
recycled |
Nil |
58787.05 |
N/A |
|
Non-inert C&D
materials disposed |
122.27 |
4090.69 |
SENT Landfill |
|
Non-inert C&D materials recycled (tonnes) |
2.16 |
878.37 |
N/A |
|
Chemical waste disposed |
Nil |
4440 |
N/A |
Contract no. HY/2009/15 - Central-Wanchai Bypass –
Tunnel (Causeway Bay Typhoon Shelter Section) under FEP-06/364/2009/A
4.4.4.
Inert and non-inert C&D waste was disposed of in this reporting
period. Details of the waste flow table are summarized in Table 4.20.
Table 4.20 Details of Waste Disposal for
Contract no. HY/2009/15
|
Inert C&D materials
disposed |
Nil Nil |
619723.37 245453.3 |
Tuen Mun Area 38 TKO137 FB |
|
Inert C&D materials
recycled |
Nil |
358660.77 |
HY/2009/11, ex-PCWA TS4 |
|
Non-inert C&D
materials disposed |
442.81 |
4309.81 |
SENT Landfill |
|
Non-inert C&D
materials recycled |
Nil |
5496446.2 |
Xun Xiang Metal ware Skylight Recycle (paper) |
|
Chemical waste disposed |
Nil |
22755 |
Dunwell Group |
|
Marine Sediment (Type1-Open
Sea Disposal (Dedicate Sites) &Type 2 – Confined Marine Disposal), m3 |
Nil |
5684 |
South of the Brothers |
Contract no. HY/2009/19 – Central – Wanchai Bypass Tunnel (North Point
Section) and Island Eastern Corridor Link under FEP-07/364/2009/D
4.4.5.
Inert C&D materials was recycled non-inert C&D waste was disposed of in this reporting period. Details
of the waste flow table are summarized in Table 4.21.
Table 4.21 Details of Waste Disposal for
Contract no. HY/2009/19
|
Inert C&D materials
disposed |
4498.39 |
649146.32 |
N/A |
|
Nil |
82349.7 |
N/A |
|
|
Non-inert C&D
materials disposed |
486.96 |
4815.89 |
SENT Landfill |
|
Non-inert C&D
materials recycled |
18.79 |
548.4 |
N/A |
|
Chemical waste disposed |
0.49 |
9.92 |
N/A |
|
Marine Sediment (Tunnel) (Type 1- Open Sea
Disposal), m3 |
Nil |
20556 |
South of Cheung Chau |
|
Marine Sediment (Tunnel) (Type 1- Open Sea
Disposal (Dedicated Sites) & Type 2 – Confined Marine Disposal), m3 |
Nil |
30751 |
East
of Sha Chau |
Contract no.
HK/2012/08 Wan Chai Development Phase II - Central-Wan Chai Bypass at Wan Chai
West under FEP-09/364/2009/B
4.4.6.
No inert and Non-inert C&D wastes were
disposed of in this reporting month. Details of the waste flow table are
summarized in Table 4.22.
Table
4.22 Details of Waste Disposal for Contract no. HK/2012/08
|
Waste
Type* |
Quantity
this quarter, m3 |
Cumulative-to-Date,
m3 |
Disposal
/ Dumping Grounds |
|
Inert C&D materials disposed |
23097 |
161438 |
N/A |
|
Inert C&D materials recycled |
32664 |
69618 |
N/A |
|
Non-inert C&D materials disposed |
387 |
1502 |
N/A |
|
Non-inert C&D materials recycled |
NIL |
NIL |
N/A |
|
Chemical waste disposed |
NIL |
NIL |
N/A |
|
Marine Sediment (Type 1) Disposal, m3 |
Nil |
3145 |
South of Cheung Chau/ South of Brothers |
Contract no. HY/2010/08
Central – Wan Chai Bypass (CWB) –
Tunnel (Slip Road 8) under FEP-10/364/2009/B
4.4.7.
No inert and Non-inert C&D wastes were
disposed of in this reporting month. Details of the waste flow table are
summarized in Table 4.23.
Table 4.23 Details of Waste Disposal for Contract no. HY/2010/08
|
Waste Type* |
Quantity this quarter, m3 |
Cumulative-to-Date, m3 |
Disposal / Dumping Grounds |
|
Inert C&D materials disposed |
84793.3 120521.1 60929.7 37641.6 |
541124.2 204874.6 71381.7 38030.6 |
TM 38 WENT SENT TKO area 137 |
|
Inert C&D
materials recycled |
Nil |
Nil |
Nil |
|
Non-inert C&D
materials disposed |
322.66 |
1905.66 |
SENT |
|
Non-inert C&D
materials recycled |
Nil |
Nil |
Nil |
|
Chemical waste
disposed |
Nil |
979 |
Nil |
|
Type 1 – Open Sea
Disposal |
10900.4 |
10900.4 |
East Sha Chau/ South Brothers Island |
|
Type 2 – Confined
Marine disposal |
549.2 |
549.2 |
East Sha Chau |
Remarks: The
cumulative amount of inert C&D material disposed was clarified by the
Contractor in the reporting period.
Contract no. HY/2011/08
Central –Central - Wan Chai Bypass
(CWB) –Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel
Commissioning under FEP-11/364/2009B
4.4.8.
No inert and Non-inert C&D wastes were
disposed of in this reporting month. Details of the waste flow table are
summarized in Table 4.24.
Table
4.24 Details
of Waste Disposal for Contract no. HY/2011/08
|
Waste Type* |
Quantity this quarter, m3 |
Cumulative-to-Date, m3 |
Disposal / Dumping Grounds |
|
Inert
C&D materials disposed |
9.82 |
367.68 |
Nil |
|
Inert
C&D materials recycled |
Nil |
Nil |
Nil |
|
Non-inert
C&D materials disposed |
147.39 |
729.57 |
Nil |
|
Non-inert
C&D materials recycled |
Nil |
31.72 |
Nil |
|
Chemical
waste disposed(kg) |
Nil |
3800 |
Nil |
5.0.1. The Event Action Plan for construction noise and air
quality are presented in Appendix 5.1.
Contract no. HY/2009/18 - Central - Wan Chai Bypass (CWB) – Central
Interchange under FEP-05/364/2009/A
5.1.1.
No limit or action level exceedance was
recorded in this reporting quarter.
Contract no. HK/2009/01 - Wan Chai
Development Phase II - Central - Wan Chai Bypass at
5.1.2. Three
limit level exceedances were recorded at M1a- Harbour Road Sports Centre on 02,
08 and 15 March 2016 in this reporting month.
5.1.3. Operation
of multiple air compressor at Ex- Wan Chai Swimming Pool (adjacent to Habour Road
Sports Centre directly opposite to the monitoring station) under non WDII-CWB
Contractor was observed as the major noise contribution during monitoring on 02
and 08 March 2016 while operation of multiple air compressor and piling works
at Ex- Wan Chai Swimming Pool (adjacent to Habour Road Sports Centre directly
opposite to the monitoring station) under non WDII-CWB Contractor as major
noise contribution during monitoring on 15 March 2016. As such, the exceedances were considered as
non-Project related.
5.1.4. Two limit
level exceedances were recorded at M1a- Harbour Road Sports Centre on 29 March
2016 and 12 April 2016 in this reporting month.
5.1.5. Operation
of multiple air compressor at Ex- Wan Chai Swimming Pool (adjacent to Habour
Road Sports Centre directly opposite to the monitoring station) under non
WDII-CWB Contractor was observed as the major noise contribution during
monitoring on 29 March 2016 while breaking works at Ex- Wan Chai Swimming Pool
(adjacent to Habour Road Sports Centre directly opposite to the monitoring
station) under non WDII-CWB Contractor as major noise contribution during
monitoring on 12 April 2016. As such,
the exceedances were considered as non-Project related.
5.1.6. Two limit
level exceedances were recorded at M1a- Harbour Road Sports Centre on 04 and 24
May 2016 in this reporting month.
5.1.7. Breaking
works at Ex- Wan Chai Swimming Pool (adjacent to Harbour Road Sports Centre
directly opposite to the monitoring station) under non WDII-CWB Contractor was
observed as the major noise contribution during monitoring on 04 May 2016 while
operation of Hydromil Trench Cutter at Ex- Wan Chai Swimming Pool (adjacent to
Harbour Road Sports Centre directly opposite to the monitoring station) under
non WDII-CWB Contractor as major noise contribution during monitoring on 24 May
2016. As such, the exceedances were
considered as non-Project related.
Contract no. HK/2009/02 - Wan Chai
Development Phase II - Central - Wan Chai Bypass at Wan Chai East (CWB Tunnel)
5.1.8. Three
limit level exceedances were recorded at M1a- Harbour Road Sports Centre on 02,
08 and 15 March 2016 in this reporting month.
5.1.9. Operation
of multiple air compressor at Ex- Wan Chai Swimming Pool (adjacent to Habour
Road Sports Centre directly opposite to the monitoring station) under non
WDII-CWB Contractor was observed as the major noise contribution during
monitoring on 02 and 08 March 2016 while operation of multiple air compressor
and piling works at Ex- Wan Chai Swimming Pool (adjacent to Habour Road Sports
Centre directly opposite to the monitoring station) under non WDII-CWB
Contractor as major noise contribution during monitoring on 15 March 2016. As such, the exceedances were considered as
non-Project related.
5.1.10. Two limit
level exceedances were recorded at M1a- Harbour Road Sports Centre on 29 March
2016 and 12 April 2016 in this reporting month.
5.1.11. Operation
of multiple air compressor at Ex- Wan Chai Swimming Pool (adjacent to Habour
Road Sports Centre directly opposite to the monitoring station) under non
WDII-CWB Contractor was observed as the major noise contribution during
monitoring on 29 March 2016 while breaking works at Ex- Wan Chai Swimming Pool
(adjacent to Habour Road Sports Centre directly opposite to the monitoring
station) under non WDII-CWB Contractor as major noise contribution during
monitoring on 12 April 2016. As such,
the exceedances were considered as non-Project related.
5.1.12. Two limit
level exceedances were recorded at M1a- Harbour Road Sports Centre on 04 and 24
May 2016 in this reporting month.
5.1.13. Breaking
works at Ex- Wan Chai Swimming Pool (adjacent to Harbour Road Sports Centre
directly opposite to the monitoring station) under non WDII-CWB Contractor was
observed as the major noise contribution during monitoring on 04 May 2016 while
operation of Hydromil Trench Cutter at Ex- Wan Chai Swimming Pool (adjacent to
Harbour Road Sports Centre directly opposite to the monitoring station) under
non WDII-CWB Contractor as major noise contribution during monitoring on 24 May
2016. As such, the exceedances were
considered as non-Project related.
Contract no. HY/2009/15 - Central-Wanchai Bypass –
Tunnel (
5.1.14.
No limit or action level exceedance was
recorded in this reporting quarter.
Contract
no. HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and
Island Eastern Corridor Link under FEP-07/364/2009/A
4.1.25.
Two limit level exceedances were recorded at
M6 – HK Baptist Church Henrietta Secondary School on 11 and 19 April 2016 in
the reporting month.
4.1.26.
Traffic noise was observed during monitoring on
11 and 19 April 2016 and it was considered as the major noise contribution. As
such, the limit level exceedances were concluded as non-project related.
Contract
no. HY/2010/08 – Central-Wanchai Bypass – Tunnel (Slip Road 8 Section) under
FEP-10/364/2009/B
5.1.15.
No limit or action level exceedance was recorded in the reporting
quarter
Contract
no. HY/2011/08 Central –Central - Wan Chai Bypass (CWB) –Tunnel Buildings,
Systems and Fittings, and Works Associated with Tunnel Commissioning under
FEP-11/364/2009B
5.1.16.
No limit or action level exceedance was recorded in the reporting
quarter.
5.2.1.
No
exceedance was recorded in the reporting quarter.
Contract no.
HK/2009/01 - Wan Chai Development Phase II - Central - Wan Chai Bypass at
5.2.2.
No
exceedance was recorded in the reporting quarter.
Contract nos.
HK/2009/02 - Wan Chai Development Phase II - Central - Wan Chai Bypass at Wan
Chai East (CWB Tunnel)
5.2.3.
No
exceedance was recorded in the reporting quarter.
Contract no. HY/2009/15 - Central-Wanchai Bypass – Tunnel (
5.2.4.
No
exceedance was recorded in the reporting quarter.
Contract no.
HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link under FEP-07/364/2009/A
5.2.5. No exceedance was recorded in the reporting
quarter.
Contract no. HK/2012/08 Wan Chai Development Phase
II - Central-Wan Chai Bypass at Wan Chai West under FEP-09/364/2009/B
5.2.6.
No
exceedance was recorded in the reporting quarter.
Contract no. HY/2010/08 – Central-Wanchai Bypass –
Tunnel (Slip Raod 8 Section) under FEP-10/364/2009/B
5.2.1
No exceedance was recorded in the reporting
quarter
Contract no. HY/2011/08 Central –Central - Wan Chai Bypass
(CWB) –Tunnel Buildings, Systems and Fittings, and Works Associated with Tunnel
Commissioning under FEP-11/364/2009B
5.2.2
No
exceedance was recorded in the reporting quarter.
Contract no.
HY/2009/19 - Central - Wanchai Bypass Tunnel (North Point Section) and Island
Eastern Corridor Link under FEP-07/364/2009/D
Reporting
month of March 2016
4.2.24.
No limit level exceedance was recorded at RTN1-FEHD
Hong Kong Transport Section Whitfield Depot in the reporting month.
4.2.25.
Limit level exceedances were recorded at
RTN2a-Electric Centre on 01 and 02 March 2016 during daytime in the reporting
month. On 01 March 2016, sheet piling and excavation works were undertaken by
Contract HY/2009/19 and mitigation measures including erection of temporary
noise barrier was implemented while roof top cleaning works by non-CWB
Contractor was undertaken immediately next to the noise monitoring station and
was considered as major noise contribution. On 02 March 2016, sheet piling,
excavation and concreting works were undertaken by Contract HY/2009/19 and
noise mitigation measures including the erection of noise barrier was
implemented while roof top floor cleaning works at the roof top by non-CWB
Contractor was undertaken immediately next to the noise monitoring station and
was considered as major noise contribution. As such, the exceedances were
considered as non-Project related.
4.2.26.
No limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School in the reporting month.
4.2.27.
No limit level exceedances were recorded at
RTN4-Causeway Bay Community Centre in the reporting month.
Reporting month of April
2016
4.2.28.
No limit level exceedance was recorded at RTN1-FEHD
Hong Kong Transport Section Whitfield Depot in the reporting month.
4.2.29.
Limit level exceedances were recorded at
RTN2a-Electric Centre on 02, 05, 06, 08, 21, 23, 25 and 26 April 2016 during
daytime in the reporting month. On 02, 05 and 06 April 2016, only installation
of pre-cast parapet, pipe laying works and concreting of blinding layer for
pipe laying were undertaken by Contract HY/2009/19, no major noise concern of
the works was considered. On 08 April 2016, excavation and backfilling works and
erection of concrete surround were conducted and no major noise concern was
considered for the works. On 23 April 2016, backfilling works and concreting
for manhole cover were conducted and no major noise concern was considered for
the works. On 21, 25 and 26 April 2016, concreting and excavation for drain
pipe were conducted and no major noise concern was considered for the
works. Nevertheless, roof top water
proofing works by non-CWB Contractor was undertaken immediately next to the
noise monitoring station across the monitoring period across April 2016 and was
considered as major noise contribution As such, the exceedances were considered
as non-Project related.
4.2.30.
Limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School on 13, 18 and 25 April 2016 in the
reporting month. On 13, 18 and 25 April 2016 during the monitoring period, no
construction works was undertaken under Contract HY/2009/19. Nevertheless,
based on relevant data from Hong Kong observatory, adverse weather condition
with significant rainfall was recorded on 13, 18 and 25 April 2016 and
thunderstorm warning signal was hoisted on 13 and 25 April 2016 and considered
as the major noise contribution. As such, the exceedances were considered as
non-project related.
4.2.31.
Limit level exceedances were recorded at
RTN4-Causeway Bay Community Centre on 08 and 09 April 2016 in the reporting
month. On 8 April 2016, minor vertical face drilling works was conducted and on
09 April 2016 crosshead concreting was conducted under HY/2009/19. In view of
the same construction sequence of vertical face drilling was extended to other
time period with no noise emanation recorded and drilling works immediately
next to the monitoring station by non-CWB Contractor for external panel
installation at Causeway Bay Community Centre was conducted on the monitoring
date, the exceedances were considered as non- Project related.
Reporting month
of May 2016
4.2.32.
No limit level exceedance was recorded at RTN1-FEHD
Hong Kong Transport Section Whitfield Depot in the reporting month.
4.2.33.
No limit level exceedances were recorded at
RTN2a-Electric Centre in the reporting month.
4.2.34.
Limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School on 27 April 2016, 3 and 10 May2016 in the
reporting month. On 27 April 2016 during the monitoring period, no construction
works was undertaken under Contract HY/2009/19 and cast-in-item installation
and erection of formwork was conducted under Contract HY/2009/19 on 03 and 10
May 2016 respectively. Based on relevant data from Hong Kong observatory,
adverse weather condition with significant rainfall was recorded on 27 April
2016 amber rainstorm warning signal and red rainstorm warning signal was
hoisted on 03 and 10 May 2016 respectively and considered as the major noise
contribution. As such, the exceedances were considered as non-project related.
Limit level exceedances were recorded at RTN4-Causeway Bay Community
Centre on 04 May 2016 in the reporting month. On 04 May 2016, segment
installation was conducted under HY/2009/19 while external panel installation
works was observed undertaken by non-CWB Contractor at Causeway Bay Community
Centre near the monitoring station and considered as the major noise
contribution. As such, the exceedance was considered as non- Project related.
Contract no. HY/2011/08 Central –Central - Wan Chai Bypass (CWB) –Tunnel
Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioning
under FEP-11/364/2009B
Reporting month of March 2016
5.3.1
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
5.3.2
Limit level exceedances were recorded at
RTN2a- Electric Centre on 01 and 02 March 2016 during daytime in the reporting
month. No construction works was undertaken under Contract HY/2011/08 while
roof top floor cleaning works at the roof top by non-CWB Contractor was
undertaken immediately next to the noise monitoring station and was considered
as major noise contribution. As such, the exceedances were considered as
non-Project related.
Reporting month of April 2016
5.3.3
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
5.3.4
Limit level exceedances
were recorded at RTN2a-Electric Centre on 02, 05, 06, 08, 21, 23, 25 and 26 April
2016 during daytime in the reporting month. No construction works was
undertaken under Contract HY/2011/08 on 02, 05, 06, 08, 21, 23 April 2016. On
25 April 2016, site formation with one excavator in operation and on 26 April
2016, manual rebar installation with coupler was conducted and no major noise
concern was considered for the above works Nevertheless, roof top water
proofing works by non-CWB Contractor was undertaken immediately next to the
noise monitoring station across the monitoring period across April 2016 and was
considered as major noise contribution As such, the exceedances were considered
as non-Project related.
Reporting month
of May 2016
5.3.5
No limit level exceedance
was recorded at RTN1-FEHD Hong Kong Transport Section Whitfield Depot in the
reporting month.
5.3.6
No limit level exceedances were recorded at
RTN2a-Electric Centre in the reporting month.
5.4.1. There was no non-compliance from the site audits in
the reporting period. During environmental site inspections conducted during
the reporting quarter, minor deficiencies were noted. However, the Contractor rectified all
deficiencies after receipt of notification.
5.5.2
With respect to the complaint case referred
by EPD received by ET on 05 April 2016 (Case Ref.:H08/RS/00007662-16). The
complainant reported that construction dust emission arising from drilling
activity from the construction site of Central – Wan Chai Bypass – Tunnel
(North Point Section) and Island Eastern Corridor Link (Contract No.
HY/2009/19).
5.5.3
Based on the site records confirmed by RSS,
drilling holes for installation of starter bars was carried out under Contract
HY/2009/19 at the vertical cut face of the existing IEC road slab on 05 April
2016 and according to the photo information provided by the EPD, no dust
suppression measures was implemented during the observed drilling works on 05
April 2016. According to Air Pollution Control
Ordinance, for pneumatic or power-driven drilling, cutting and polishing, water
or a dust suppression chemical shall be continuously sprayed on the surface
where any pneumatic or power-driven drilling, cutting, polishing or other
mechanical breaking operation that causes dust emission is carried out, unless
the process is accompanied by the operation of an effective dust extraction and
filtering device.
5.5.4
Based on the information advised by the CWB RSS on 05 May 2016, a case
of construction noise permit contravention under Contract HY/2009/19 was
identified by the EPD on 24 April 2016.
5.6.1
There was no particular action taken since no
non-compliance was recorded from the monitoring and site audits in the
reporting period.
5.6.2
With respect to the identified case on
drilling works without dust suppression measures, follow-up inspection was
conducted on 06 April 2016, rectification actions including the use of vacuum
suction to extract dust generated during the concerned drilling works was
observed implemented by the Contractor of HY/2009/19 for starter bars drilling
works.
5.6.3
A Record of Inspection regarding the drilling
works conducted on 05 April 2016 was subsequently issued by the EPD to the
Contractor of HY/2009/19 on 21 April 2016.
5.6.4
With respect to the identified case on
contravention on construction noise permit (Contract HY/2009/19), the
construction noise permit no. GW-RS197-16 was cancelled by the Authority on 27
April 2016.Further information to be submitted by the Contractor of HY/2009/19
and CWB RSS team was requested by the Environmental Team for follow up.
6.0.1 Eight environmental complaints were received in the reporting quarter.
6.0.2 First public complaint regarding construction noise referred by ICC was
received by ET on 03 March 2016 (ICC Ref.: CASE#2-1938637403 dated 01 March
2016). The complainant reported that construction noise was emanated from road
works located between Lung Wo Road and Lung Wui Road Interface.
Further information was referred by RSS
on 15 March 2016, the complainant clarified on 15 March 2016 that construction
noise was emanated from road works located between Lung Wo Road and Lung Wui
Road Interface during midnight and has lasted for one and half month resulting
in nuisance to nearby residence.
Further information was referred by RSS
on 18 March 2016, the complainant further clarified on 18 March 2016 that the
concerned location shall be Lung King Street near the parking spaces for
motorcycles and the Contract no. as stated on the publicity board is
HK/2012/08. Furthermore, the complainant identified the noise was from power
generators.
ET confirmed with the Resident Site
Staff that there was neither construction works nor operation of power
generators under Contract HK/2012/08 at the concerned location from 1900hrs to
0700hrs during the period from 23 February 2016 to 14 March 2016.
Based on the complaint information
referred by ICC on 3 March 2016, according to the relevant site records
provided by RSS, from 0800hrs to 1800hrs on both 29 February 2016 and 01 March
2016, drainage works was undertaken by Contract HK/2012/08 at Lung Wo Road and
one excavator was in operation for soil excavation. Follow up inspection was
conducted during the weekly environmental site inspection on 08 March 2016 and
no particular noise emanating works was observed.
Based on the further information provided
by the complainant on 15 March 2016, the complainant clarified on 15 March 2016
that Construction noise was emanated from road works located between Lung Wo
Road and Lung Wui Road Interface during midnight and has lasted for one and
half month resulting in nuisance to nearby residence. On 18 March 2016, the
complainant further clarified on 18 March 2016 that the concerned location
shall be Lung King Street near the parking spaces for motorcycles and the
Contract no. as stated on the publicity board is HK/2012/08. Furthermore, the
complainant identified the noise was from power generators. According to the
relevant site records provided by RSS, there was neither construction works nor
operation of power generators under Contract HK/2012/08 at the concerned
location from 1900hrs to 0700hrs during the period from 23 February 2016 to 14
March 2016.
Nevertheless, in view of the public
concern, the Contractor is recommended to maintain regular maintenance of the
plant and equipment deployed to avoid potential nuisance to the nearby public.
6.0.3 Second public complaint regarding construction dust, plant exhaust,
construction noise and water quality referred by EPD was received by ET on 10
March 2016 (EPD Ref.: H05/RS/00005206-16 dated 10 March 2016). The complainant reported
that construction dust, plant exhaust and construction noise generated from the
construction work of Contract HK/2012/08 at waterfront of Lung King Street
caused nuisance, and the water quality at the waterfront of Lung King Street
was becoming worse that accumulation of the floating refuse and foam was found.
ET confirmed with the Resident Site
Staff that soil excavation at ELS area, Zone A2(2), was carried out, where at
approx. 100m from the waterfront of Lung King Street from 08:00 hrs to 18:00
hrs on 07 March 2016 under Contract HK/2012/08.
Two excavators were involved at that location. Erection of falsework for
culvert L was carried out near the waterfront of Lung King Street from 08:00
hrs to 18:00 hrs on 07 March 2016 under Contract HK/2012/08. One lorry crane was involved for lifting
falsework elements. Dust suppression measures including the water sprinklers
were installed along site haul road.
Regularly removed the floating refuse at
the waterfront of Lung King Street was conducted by the Contractor of
HK/2012/08. The concerned observed floating foam at the waterfront of Lung King
Street was found originating from the diverted cooling mains discharge.
According to the relevant site records
provided by RSS, soil excavation at ELS area, Zone A2(2) was carried out, where
at approx.100m from the waterfront of Lung King Street under Contract
HK/2012/08 from 08:00hrs to 18:00hrs on 07 March 2016 and two excavators were
in operation at that location while erection of falsework for culvert L was carried
out near the waterfront of Lung King Street from 08:00hrs and 18:00hrs on 07
March 2016 under Contract HK/2012/08 and one lorry crane was involved for
lifting falsework elements. Dust suppression measures including the use of
water sprinklers along the site haul road was implemented by the Contractor of
HK/2012/08 and removal of floating refuse was regularly conducted at the
waterfront of Lung King Street by the Contractor of HK/2012/08. Upon
investigation, the concerned observed floating foam at the waterfront of Lung
King Street was found originating from the diverted cooling mains discharge.
Follow up inspection was conducted
during the weekly environmental site inspection on 15 March 2016 and dust
suppression measures including watering for haul road, tarpaulin sheet covering
for cement bags stored on site and three side and top covering for grouting
station were implemented while and no dark smoke emission from the plant and
machinery deployed on site was observed. Noise mitigation measures including
acoustic covering was implementing for excavator mounted breaker. In addition,
removal of floating refuse on site was observed implemented by the Contractor
of HK/2012/08 and no accumulation of floating refuse was found. The concerned
foam originating from diverted cooling mains discharge was observed during
inspection and the dispersion of the concerned foam of unknown chemical nature
was observed isolated from the nearby public area.
Nevertheless, in view of the public
concern, the Contractor was recommended to maintain regular checking of the
plants and equipment deployed on site to avoid potential air quality impact to
the nearby public and to maintain adequate dust suppression measures on site to
avoid potential dust impact to the surroundings. The Contractor was reminded to
maintain regular cleaning of floating refuse within the construction site area
to avoid potential nuisance to the surroundings. The Contractor was also
reminded to maintain the noise mitigation measure if breaking works would be
required. The Contractor was also suggested to reflect the observed foam to
relevant Cooling Mains owners.
6.0.4 Third public complaint regarding direct discharge of muddy effluent
referred by EPD was received by ET on 31 March 2016 (Case Ref.: H08/RS/00006732-16).
The complainant reported that muddy water was observed discharged from the
construction site of Central – Wan Chai Bypass – Tunnel (North Point Section)
and Island Eastern Corridor Link (Contract No. HY/2009/19) into Victoria Habour
via a drain hole.
ET confirmed with the Resident Site
Staff that pipe Laying works between Pier 32 and Pier 33 and excavation and
blinding works for Manhole at Pier 34 were in progress on 22 March 2016.
The observed drain hole was identified
to be the outlet point of a manhole and a section of an abandoned U-channel
(extending from the concerned manhole to the Hong Kong Electric Substation in
length along the site boundary) was adjoining the concerned manhole and sandbag
was previously placed at the U-channel at the location near the inlet point to
the concerned manhole.
Based on the site records confirmed by
RSS, pipe laying works between Pier 32 and Pier 33 and excavation and blinding
works for Manhole at Pier 34 were in progress on 22 March 2016. The observed
drain hole was identified to be the outlet point of a manhole and a section of
an abandoned U-channel (extending from the concerned manhole to the Hong Kong
Electric Substation in length along the site boundary) was adjoining the
concerned manhole and sandbag was previously placed at the U-channel at the
location near the inlet point to the concerned manhole. In addition, no site
discharge point was connected to the aforesaid U-channel and the concerned
manhole. In view of the environmental concern, the following remedial and
precautionary actions were taken by the Contractor of HY/2009/19 on 29 March
2016.
v)
Plugging the inlet point of the concerned manhole (connecting to the
abandoned U-channel) with concrete;
vi)
Plugging the outlet of the concerned manhole (connecting to the observed
drain hole) with concrete;
vii)
Filling the concerned manhole with rubbles;
viii)
Shifting the unused wastewater treatment plant around the concerned
location to other site location for use.
Follow-up inspection was conducted by
the Environmental Team on 06 April 2016. No further contaminated runoff
discharge was observed from the concerned drain hole and precautionary measures
including provision of concrete bunding was implemented along the site boundary
at the concerned location to avoid potential surface overflow. The pipe laying
works and the excavation works was found at distant location away from the
concerned drain hole with no surface drain connection and no particular
effluent was generated from the work. As such, no information indicate the
discharge was related to the above construction activities.
However, it was noted that another
section of surface drainage channel within the construction site (perpendicular
in direction to the initial identified abandoned U-channel) was also in connection
to concerned manhole and minor residue mud deposition was observed within the
surface drainage channel. Despite the above additional surface drainage channel
identified, the outlet point of concerned final manhole (in connection with the
observed drain hole) was observed plugged with concrete and filled with rubbles
as rectification measure to avoid any further contaminated runoff discharge via
the observed drain hole.
Nevertheless, the Contractor of
HY/2009/19 was reminded to conduct regular cleaning works for site surface
drainage channel to avoid accumulation of silt and soil and avoid potential
overflow by directing the surface runoff within the surface drainage channel to
proper collection point for necessary treatment prior to discharge. The Contractor
of HY/2009/19 was also reminded to check and review other surface drainage
channel within the construction site to avoid potential runoff related impact
via surface drainage channel to the nearby waters.
In addition, it was noticed that water
was discharged from a piping extending from City Garden and the discharged
water would result in seepage across the site hoarding into the abandoned
U-channel. The Contractor of HY/2009/19 was suggested to liaise with the City
Garden Management Office for proper connection of the observed pipping with
discharge to prevent further seepage water into the construction site.
6.0.5 Forth public complaint regarding construction dust emission was referred
by EPD was received by ET on 05 April 2016 (Case Ref.: H08/RS/00007662-16). The
complainant reported that construction dust emission arising from drilling
activity from the construction site of Central – Wan Chai Bypass – Tunnel
(North Point Section) and Island Eastern Corridor Link (Contract No.
HY/2009/19).
ET confirmed with the Resident Site
Staff that drilling holes for installation of starter bars was carried out
under Contract HY/2009/19 at the vertical cut face of the existing IEC road
slab on 05 April 2016
Based on the site records confirmed by
RSS, drilling holes for installation of starter bars was carried out under
Contract HY/2009/19 at the vertical cut face of the existing IEC road slab on
05 April 2016 and according to the photo information provided by the EPD, no
dust suppression measures was implemented during the observed drilling works on
05 April 2016.
According to Air Pollution Control
Ordinance, for pneumatic or power-driven drilling, cutting and polishing, water
or a dust suppression chemical shall be continuously sprayed on the surface
where any pneumatic or power-driven drilling, cutting, polishing or other
mechanical breaking operation that causes dust emission is carried out, unless
the process is accompanied by the operation of an effective dust extraction and
filtering device.
Follow-up inspection was conducted on 06
April 2016, rectification actions including the use of vacuum suction to
extract dust generated during the concerned drilling works was observed
implemented by the Contractor of HY/2009/19 for starter bars drilling works.
6.0.6 Fifth public complaint regarding landscape aspect was referred by RSS was
received by ET on 11 April 2016 (Case Ref.:2-2036525055). The complainant
reported that a tree (6 meters in height and 1.5 meters in diameter) was found
toppled at 111 Victoria Park Road, near Lamp post 38632 and blocking the
Pedestrian pathway on 27 March 2016.
ET confirmed with the Resident Site
Staff that the concerned tree was identified as T710 and no construction
activity in the vicinity of tree T710 on 27 March 2016 and no construction
works are required in or near its vicinity.
Based on the site records confirmed by
RSS, the concerned tree was identified as the retained tree T710 maintained
under the Contract of HY/2010/08 and the concerned tree T710 was located
outside the assessment area in the relevant Project EIA Report. No construction
works are required in the vicinity of concerned tree T710 and no construction
activity was conducted in the vicinity of tree T710 on 27 March 2016.
Nevertheless, based on RSS information, recent tree monitoring report indicates
an existing cavity at trunk and the concerned tree T710 has been recommended to
be felled in the tree risk assessment Form 2.
With respect to the observed incident of
the toppling of the concerned tree T710, the Contractor of HY/2010/08 was
instructed by RSS to remove the broken trunk/ remains to avoid impact to the
surroundings. The concerned tree T710 shall be compensated by the Contractor of
HY/2010/08 in accordance with the Development Bureau Technical Circular (Works)
No. 7/2015 and the detail on compensation would be further agreed with Victoria
Park Management Office. Follow-up inspection was conducted on 13 April 2016,
and the remaining parts of the concerned tree T710 was observed felled to avoid
further impact to nearby public road.
6.0.7 Sixth public complaint regarding muddy dispersion referred by RSS was
received by ET on 13 April 2016. The complainant reported that muddy water was
observed to disperse from Contract HK/2009/02 site area to Victoria Harbour
occasionally as there was no silt curtain installed under the buoyancy floats.
The location concerned was the East of Star Ferry Piers (Contract No.
HK/2009/02).
ET confirmed with the Resident Site
Staff that no marine construction activities or land construction activities
under Contract HK/2009/02 at the concerned location on 12 April 2016.
Surface runoff control measures
including provision of concrete bund at the concerned location was implemented
by Contract HK/2009/02.
No soil & silt deposition along the
seawall at the concerned location on 12 April 2016.
No discharge point located in the
vicinity of the concerned location under Contract HK/2009/02.
Silt curtain with buoyancy floats acting
as anchor points was installed at Monitoring Station RW21-P789 for Water
intakes.
Based on the site records confirmed by
RSS, no marine construction activities or land construction activities was
carried out under Contract HK/2009/02 at the concerned location on 12 April
2016 and no soil and silt deposition was found along the seawall at the
concerned location and precautionary measures for site runoff control including
provision of concrete bund along boundary of site area near the waterfront
around the concerned location was implemented by the Contractor HK/2009/02. In
addition, no discharge point under Contract HK/2009/02 was located in the
vicinity of the concerned location. Based on information confirmed by RSS, the
buoyancy floats deployed at the concerned location are acting as the anchor
points for the silt curtain deployed around the WQM Station RW21-P789 for the
WSD and Cooling Water Intakes group.
Follow-up inspection was conducted on 14
April 2016, no surface runoff from the construction site nor discharge of
contaminated effluent was observed around the concerned location and
precautionary measures including the provision of concrete bund at the
concerned location was observed maintained by the Contractor of HK/2009/02 and
the silt curtain deployed around the WQM station RW21-P789 was generally in
order.
In view of the public concern on the
water quality, the Contractor of HK/2009/02 was reminded to maintain effective
surface runoff protection and provide proper collection point of construction
effluent around the concerned location to avoid potential surface runoff
related impact.
6.0.8 Seventh public complaint regarding muddy water discharge referred by EPD
was received by ET on 13 April 2016 (EPD Ref.: H05/RS/00008367-16 dated 13
April 2016). The complainant reported that muddy water was discharged from the
construction work of Contract HK/2012/08 to the sea outside the Hong Kong
Academy for Performing Arts on 13 April 2016 morning.
ET confirmed with the Resident Site
Staff that internal transport of soil to the hopper barge for storage via
landing barge was conducted by Contractor of HK/2012/08 during 0800 hours to
1000 hours on 13 April 2016 at the sea outside the concerned location and 3
nos. of dump trucks were deployed for the operation.
Protection measure including provision
of sandbag bunding along the side of the landing barge was implemented by the
Contractor of HK/2012/08.
According to the relevant site records
provided by RSS, internal transport of soil to the hopper barge for storage via
landing barge was conducted by Contractor of HK/2012/08 during 0800 hours to
1000 hours on 13 April 2016 at the sea outside the concerned location and 3
nos. of dump trucks were deployed for the operation. Protection measure
including provision of sandbag bunding along the side of the landing barge was
implemented by the Contractor of HK/2012/08. In addition, amber rainstorm
warning signal was hoisted from 0630 hours to 1200 hours on 13 April 2016 and
during the above time period, muddy water was observed from the upstream of
culvert L outside the HK/2012/08 site.
Follow up inspection was conducted on 19
April 2016, protection measures including provision of sandbag bunding along
the side of the landing barge was implemented and no mud or soil deposition was
observed along the seawall and no discharge point was located within the
temporary water channel connecting the Culvert L outfall location to the
Victoria Harbour. In addition, piling works was observed at the north side of
Zone A1 on 19 April 2016 and construction effluent collection from piling work
via sedimentation tank to wastewater treatment facility was implemented and
steel barrier was installed around the piling works area to mitigate against
potential surface runoff related impact.
Nevertheless, in view of the public
concern, the Contractor was reminded to maintain adequate perimeter embankment
protection along the seawall boundary and maintain proper construction effluent
collection system to avoid potential runoff related impact to nearby waters.
6.0.9 Eighth EPD complaint regarding noise nuisance referred by RSS was
received by ET on 27 May 2016 (EPD Ref: H05/RS/00012646-16 dated 27 May 2016).
The complainant reported that a generator was operated round-the-clock in the
Chun Wo- CRGL JV construction site near Wanchai Ferry Pier that cause noise
nuisance. (Contract No. HK/2009/02).
ET confirmed with the Resident Site
Staff that a generator deployed under Contract HK/2009/02 near the covered
walkway for Wanchai Ferry Pier at Portion 2 area and was operated from 1900hrs
on 24 May 2016 to 0700hrs on 25 May 2016 and from 1900hrs on 25 May 2016 to
0700hrs on 26 May 2016. The generator was used for the power supply of lighting
inside Tunnel Portions 1 and 2.
According to the relevant site records
provided by RSS, a generator deployed under Contract HK/2009/02 near the
covered walkway for Wanchai Ferry Pier at Portion 2 area and was operated from
1900hrs on 24 May 2016 to 0700hrs on 25 May 2016 and from 1900hrs on 25 May
2016 to 0700hrs on 26 May 2016. The generator was used for the power supply of
lighting inside Tunnel Portions 1 and 2. Based on review on site information,
relevant Construction Noise Permits GW-RS0516-16 and GW-RS0390-16 for the
operation of the concerned generator were confirmed in place while no
sufficient site information was considered available to demonstrate the use of
acoustic enclosure for the operation of the generator following the special
condition 3d item 4. Despite the above, the Contractor of HK/2009/02 has
suspended the use of the generator at the concerned location after 2300hours to
minimize potential noise concern to the surroundings from 28 May 2016.
Nevertheless, the Contractor of
HK/2009/02 was reminded to upkeep the site control system for construction
works carried out during restricted hours and night time for Construction Noise
Permit compliance and maintain regular maintenance of the plant and equipment
deployed to avoid potential nuisance to the nearby public.
6.0.1.
The details of cumulative complaint log and summary of
complaints are presented in Appendix 6.1.
6.0.2.
No notification of summons or
prosecution was received in the reporting period. Cumulative statistic on complaints and successful
prosecutions are summarized in Table 6.1 and Table 6.2 respectively.
Table
6.1 Cumulative Statistics on Complaints
|
Reporting Period |
No. of Complaints |
|
Commencement
of Works up to last reporting quarter |
57 |
|
March 2016 – May 2016 |
8 |
|
Project-to-Date |
65 |
Table 6.2 Cumulative Statistics on Successful
Prosecutions
|
Environmental Parameters |
Cumulative No. Brought Forward |
No. of Successful Prosecutions this quarter (Offence Date) |
Cumulative No. Project-to-Date |
|
Air |
- |
0 |
0 |
|
Noise |
- |
0 |
0 |
|
Waste |
- |
0 |
0 |
|
Total |
- |
0 |
0 |
7.0.2.
According to the Final EM&A Report of Central
Reclamation Phase III (CRIII) for Contract HK 12/02, the major construction
activities were completed by end of January 2014 and no construction activities
were undertaken thereafter and the water
quality monitoring was completed in October 2011. As such, it is considered that there were no
cumulative construction impact due to the concurrent activities of the current
projects with the Central Reclamation Phase III (CRIII) undertaken by
contractor HK12/02 in the reporting period.
7.0.3.
According to the construction programme of
Central-Wanchai Bypass at Wanchai West at the Central Reclamation Phase III
area include structural works for tunnel construction, road works and drainage
works, removal of bulkhead wall and seawall modification were performed in May
2016 reporting month. As no project
related exceedance were recorded during the reporting period, cumulative
construction impact due to the concurrent activities of the current projects
with the Central Reclamation Phase III (CRIII) was considered as insignificant.
7.0.4.
According to the construction programme of
Wan Chai Development Phase II, Central-Wan Chai Bypass and Island Eastern
Corridor Link projects, the major construction activities under Wan Chai
Development Phase II were tunnel works, D-wall construction at Wan
Chai East and culvert construction, tunnel construction and ELS works at Wan
Chai West. The major construction activities under Central-Wan Chai
Bypass and Island Eastern Corridor Link Projects were road works at Central
Interchange, backfilling works at Ex-PCWAW, ELS works and retaining wall
construction at Victoria Park, ELS works and tunnel works at TS3; bridge
construction, piling and tunnel works at North Point area in the reporting
month. In addition, other non-Wan Chai Development Phase II, Central-Wan Chai
Bypass and Island Eastern Corridor Link projects was observed undertaken at Wan
Chai North area.
7.0.5.
No significant air impact from construction
activities was anticipated in the reporting month. Besides, no project related
exceedance was recorded during the air and noise environmental monitoring
events in the reporting month. Thus, it is evaluated that the cumulative
construction impact from the concurrent projects including Central Reclamation
Phase III (CRIII), Wan Chai Development Phase II (WDII), Central-WanChai Bypass
(CWB), Island Eastern Corridor Link projects (IECL) was insignificant.
8.0.1.
The
EM&A programme was carried out in accordance with the EM&A Manual
requirements, minor alterations to the programme proposed were made in response
to changing circumstances.
Air quality
monitoring
8.0.2.
One action level exceedance for TSP monitoring was recorded at CMA5b –
Pedestrian Plaza on 14 April 2016 in the reporting month. The exceedance was
concluded as non-project related.
Noise
monitoring
8.0.3.
Three limit level exceedances were recorded at noise monitoring station
M1a – Habour Road Sports Center on 02, 08 and 15 March 2016. The exceedances
were concluded as non-project related.
8.0.4.
Two limit level exceedances were recorded at noise monitoring station
M1a – Habour Road Sports Center on 29 March 2016 and 12 April 2016. The
exceedances were concluded as non-project related.
8.0.5.
Two limit level exceedances were recorded at noise monitoring station M6
– HK Baptist Church Henrietta Secondary School on 11 and 19 April 2016. The
exceedances were concluded as non-project related.
8.0.6.
Two limit level exceedances were recorded at noise monitoring station
M1a – Habour Road Sports Center on 04 and 24 May 2016. The exceedances were
concluded as non-project related.
Real
time noise monitoring
Reporting month of March 2016
8.0.7.
No limit level exceedance was recorded at RTN1-FEHD Hong Kong Transport Section
Whitfield Depot in the reporting month.
8.0.8.
Limit level exceedances were recorded at RTN2a-Electric Centre on 01 and 02
March 2016 during daytime in the reporting month. On 01 March 2016, sheet
piling and excavation works were undertaken by Contract HY/2009/19 and
mitigation measures including erection of temporary noise barrier was
implemented while roof top cleaning works by non-CWB Contractor was undertaken
immediately next to the noise monitoring station and was considered as major
noise contribution. On 02 March 2016, sheet piling, excavation and concreting
works were undertaken by Contract HY/2009/19 and noise mitigation measures
including the erection of noise barrier was implemented while roof top floor
cleaning works at the roof top by non-CWB Contractor was undertaken immediately
next to the noise monitoring station and was considered as major noise
contribution. As such, the exceedances were considered as non-Project related.
8.0.9.
Limit level exceedances were recorded at
RTN2a- Electric Centre on 01 and 02 March 2016 during daytime in the reporting
month. No construction works was undertaken under Contract HY/2011/08 while
roof top floor cleaning works at the roof top by non-CWB Contractor was
undertaken immediately next to the noise monitoring station and was considered
as major noise contribution. As such, the exceedances were considered as
non-Project related.
8.0.10.
No limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School in the reporting month.
8.0.11.
No limit level exceedances were recorded at
RTN4-Causeway Bay Community Centre in the reporting month.
Reporting month of April
2016
8.0.12.
No limit level exceedance was recorded at RTN1-FEHD Hong Kong Transport Section
Whitfield Depot in the reporting month.
8.0.13.
Limit level exceedances were recorded at RTN2a-Electric Centre on 02, 05, 06,
08, 21, 23, 25 and 26 April 2016 during daytime in the reporting month. On 02,
05 and 06 April 2016, only installation of pre-cast parapet, pipe laying works
and concreting of blinding layer for pipe laying were undertaken by Contract
HY/2009/19, no major noise concern of the works was considered. On 08 April
2016, excavation and backfilling works and erection of concrete surround were
conducted and no major noise concern was considered for the works. On 23 April
2016, backfilling works and concreting for manhole cover were conducted and no
major noise concern was considered for the works. On 21, 25 and 26 April 2016, concreting
and excavation for drain pipe were conducted and no major noise concern was
considered for the works. Nevertheless,
roof top water proofing works by non-CWB Contractor was undertaken immediately
next to the noise monitoring station across the monitoring period across April
2016 and was considered as major noise contribution As such, the exceedances
were considered as non-Project related.
8.0.14.
Limit level exceedances were recorded at RTN2a-Electric Centre on 02, 05, 06,
08, 21, 23, 25 and 26 April 2016 during daytime in the reporting month. No
construction works was undertaken under Contract HY/2011/08 on 02, 05, 06, 08,
21, 23 April 2016. On 25 April 2016, site formation with one excavator in
operation and on 26 April 2016, manual rebar installation with coupler was
conducted and no major noise concern was considered for the above works
Nevertheless, roof top water proofing works by non-CWB Contractor was
undertaken immediately next to the noise monitoring station across the
monitoring period across April 2016 and was considered as major noise
contribution As such, the exceedances were considered as non-Project related.
8.0.15.
Limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School on 13, 18 and 25 April 2016 in the
reporting month. On 13, 18 and 25 April 2016 during the monitoring period, no
construction works was undertaken under Contract HY/2009/19. Nevertheless,
based on relevant data from Hong Kong observatory, adverse weather condition
with significant rainfall was recorded on 13, 18 and 25 April 2016 and
thunderstorm warning signal was hoisted on 13 and 25 April 2016 and considered
as the major noise contribution. As such, the exceedances were considered as
non-project related.
8.0.16.
Limit level exceedances were recorded at
RTN4-Causeway Bay Community Centre on 08 and 09 April 2016 in the reporting
month. On 8 April 2016, minor vertical face drilling works was conducted and on
09 April 2016 crosshead concreting was conducted under HY/2009/19. In view of
the same construction sequence of vertical face drilling was extended to other
time period with no noise emanation recorded and drilling works immediately
next to the monitoring station by non-CWB Contractor for external panel
installation at Causeway Bay Community Centre was conducted on the monitoring
date, the exceedances were considered as non- Project related.
Reporting month of May 2016
8.0.17.
No limit level exceedance was recorded at RTN1-FEHD Hong Kong Transport Section
Whitfield Depot in the reporting month.
8.0.18.
No limit level exceedances were recorded at RTN2a-Electric Centre in the
reporting month.
8.0.19.
Limit level exceedances were recorded at
RTN3-Yue Lee Mo Fan Memorial School on 27 April 2016, 3 and 10 May2016 in the
reporting month. On 27 April 2016 during the monitoring period, no construction
works was undertaken under Contract HY/2009/19 and cast-in-item installation
and erection of formwork was conducted under Contract HY/2009/19 on 03 and 10
May 2016 respectively. Based on relevant data from Hong Kong observatory,
adverse weather condition with significant rainfall was recorded on 27 April
2016 amber rainstorm warning signal and red rainstorm warning signal was
hoisted on 03 and 10 May 2016 respectively and considered as the major noise contribution.
As such, the exceedances were considered as non-project related.
8.0.20.
Limit level exceedances were recorded at RTN4-Causeway Bay Community
Centre on 04 May 2016 in the reporting month. On 04 May 2016, segment
installation was conducted under HY/2009/19 while external panel installation
works was observed undertaken by non-CWB Contractor at Causeway Bay Community
Centre near the monitoring station and considered as the major noise
contribution. As such, the exceedance was considered as non- Project related.
Environmental Complaints
8.0.21.
Eight environmental complaints were received in the reporting quarter.
8.0.22.
First public complaint regarding construction noise referred by ICC was
received by ET on 03 March 2016 (ICC Ref.: CASE#2-1938637403 dated 01 March 2016).
The complainant reported that construction noise was emanated from road works
located between Lung Wo Road and Lung Wui Road Interface.
Further information was referred by RSS
on 15 March 2016, the complainant clarified on 15 March 2016 that construction
noise was emanated from road works located between Lung Wo Road and Lung Wui
Road Interface during midnight and has lasted for one and half month resulting
in nuisance to nearby residence.
Further information was referred by RSS
on 18 March 2016, the complainant further clarified on 18 March 2016 that the
concerned location shall be Lung King Street near the parking spaces for
motorcycles and the Contract no. as stated on the publicity board is
HK/2012/08. Furthermore, the complainant identified the noise was from power
generators.
ET confirmed with the Resident Site
Staff that there was neither construction works nor operation of power
generators under Contract HK/2012/08 at the concerned location from 1900hrs to
0700hrs during the period from 23 February 2016 to 14 March 2016.
Based on the complaint information
referred by ICC on 3 March 2016, according to the relevant site records
provided by RSS, from 0800hrs to 1800hrs on both 29 February 2016 and 01 March
2016, drainage works was undertaken by Contract HK/2012/08 at Lung Wo Road and
one excavator was in operation for soil excavation. Follow up inspection was
conducted during the weekly environmental site inspection on 08 March 2016 and
no particular noise emanating works was observed.
Based on the further information
provided by the complainant on 15 March 2016, the complainant clarified on 15
March 2016 that Construction noise was emanated from road works located between
Lung Wo Road and Lung Wui Road Interface during midnight and has lasted for one
and half month resulting in nuisance to nearby residence. On 18 March 2016, the
complainant further clarified on 18 March 2016 that the concerned location
shall be Lung King Street near the parking spaces for motorcycles and the
Contract no. as stated on the publicity board is HK/2012/08. Furthermore, the
complainant identified the noise was from power generators. According to the
relevant site records provided by RSS, there was neither construction works nor
operation of power generators under Contract HK/2012/08 at the concerned
location from 1900hrs to 0700hrs during the period from 23 February 2016 to 14
March 2016.
Nevertheless, in view of the public
concern, the Contractor is recommended to maintain regular maintenance of the
plant and equipment deployed to avoid potential nuisance to the nearby public.
8.0.23.
Second public complaint regarding construction dust, plant exhaust,
construction noise and water quality referred by EPD was received by ET on 10
March 2016 (EPD Ref.: H05/RS/00005206-16 dated 10 March 2016). The complainant
reported that construction dust, plant exhaust and construction noise generated
from the construction work of Contract HK/2012/08 at waterfront of Lung King
Street caused nuisance, and the water quality at the waterfront of Lung King
Street was becoming worse that accumulation of the floating refuse and foam was
found.
ET confirmed with the Resident Site
Staff that soil excavation at ELS area, Zone A2(2), was carried out, where at
approx. 100m from the waterfront of Lung King Street from 08:00 hrs to 18:00
hrs on 07 March 2016 under Contract HK/2012/08.
Two excavators were involved at that location. Erection of falsework for
culvert L was carried out near the waterfront of Lung King Street from 08:00
hrs to 18:00 hrs on 07 March 2016 under Contract HK/2012/08. One lorry crane was involved for lifting
falsework elements. Dust suppression measures including the water sprinklers
were installed along site haul road.
Regularly removed the floating refuse at
the waterfront of Lung King Street was conducted by the Contractor of
HK/2012/08. The concerned observed floating foam at the waterfront of Lung King
Street was found originating from the diverted cooling mains discharge.
According to the relevant site records
provided by RSS, soil excavation at ELS area, Zone A2(2) was carried out, where
at approx.100m from the waterfront of Lung King Street under Contract
HK/2012/08 from 08:00hrs to 18:00hrs on 07 March 2016 and two excavators were
in operation at that location while erection of falsework for culvert L was
carried out near the waterfront of Lung King Street from 08:00hrs and 18:00hrs
on 07 March 2016 under Contract HK/2012/08 and one lorry crane was involved for
lifting falsework elements. Dust suppression measures including the use of
water sprinklers along the site haul road was implemented by the Contractor of
HK/2012/08 and removal of floating refuse was regularly conducted at the
waterfront of Lung King Street by the Contractor of HK/2012/08. Upon
investigation, the concerned observed floating foam at the waterfront of Lung
King Street was found originating from the diverted cooling mains discharge.
Follow up inspection was conducted
during the weekly environmental site inspection on 15 March 2016 and dust
suppression measures including watering for haul road, tarpaulin sheet covering
for cement bags stored on site and three side and top covering for grouting
station were implemented while and no dark smoke emission from the plant and
machinery deployed on site was observed. Noise mitigation measures including
acoustic covering was implementing for excavator mounted breaker. In addition,
removal of floating refuse on site was observed implemented by the Contractor
of HK/2012/08 and no accumulation of floating refuse was found. The concerned
foam originating from diverted cooling mains discharge was observed during
inspection and the dispersion of the concerned foam of unknown chemical nature
was observed isolated from the nearby public area.
Nevertheless, in view of the public concern,
the Contractor was recommended to maintain regular checking of the plants and
equipment deployed on site to avoid potential air quality impact to the nearby
public and to maintain adequate dust suppression measures on site to avoid
potential dust impact to the surroundings. The Contractor was reminded to
maintain regular cleaning of floating refuse within the construction site area
to avoid potential nuisance to the surroundings. The Contractor was also
reminded to maintain the noise mitigation measure if breaking works would be
required. The Contractor was also suggested to reflect the observed foam to
relevant Cooling Mains owners.
8.0.24.
Third public complaint regarding direct discharge of muddy effluent
referred by EPD was received by ET on 31 March 2016 (Case Ref.:
H08/RS/00006732-16). The complainant reported that muddy water was observed
discharged from the construction site of Central – Wan Chai Bypass – Tunnel
(North Point Section) and Island Eastern Corridor Link (Contract No.
HY/2009/19) into Victoria Habour via a drain hole.
ET confirmed with the Resident Site
Staff that pipe Laying works between Pier 32 and Pier 33 and excavation and
blinding works for Manhole at Pier 34 were in progress on 22 March 2016.
The observed drain hole was identified
to be the outlet point of a manhole and a section of an abandoned U-channel
(extending from the concerned manhole to the Hong Kong Electric Substation in
length along the site boundary) was adjoining the concerned manhole and sandbag
was previously placed at the U-channel at the location near the inlet point to
the concerned manhole.
Based on the site records confirmed by
RSS, pipe laying works between Pier 32 and Pier 33 and excavation and blinding
works for Manhole at Pier 34 were in progress on 22 March 2016. The observed
drain hole was identified to be the outlet point of a manhole and a section of
an abandoned U-channel (extending from the concerned manhole to the Hong Kong
Electric Substation in length along the site boundary) was adjoining the concerned
manhole and sandbag was previously placed at the U-channel at the location near
the inlet point to the concerned manhole. In addition, no site discharge point
was connected to the aforesaid U-channel and the concerned manhole. In view of
the environmental concern, the following remedial and precautionary actions
were taken by the Contractor of HY/2009/19 on 29 March 2016.
ix)
Plugging the inlet point of the concerned manhole (connecting to the
abandoned U-channel) with concrete;
x)
Plugging the outlet of the concerned manhole (connecting to the observed
drain hole) with concrete;
xi)
Filling the concerned manhole with rubbles;
xii)
Shifting the unused wastewater treatment plant around the concerned
location to other site location for use.
Follow-up inspection was conducted by
the Environmental Team on 06 April 2016. No further contaminated runoff
discharge was observed from the concerned drain hole and precautionary measures
including provision of concrete bunding was implemented along the site boundary
at the concerned location to avoid potential surface overflow. The pipe laying
works and the excavation works was found at distant location away from the
concerned drain hole with no surface drain connection and no particular
effluent was generated from the work. As such, no information indicate the
discharge was related to the above construction activities.
However, it was noted that another
section of surface drainage channel within the construction site (perpendicular
in direction to the initial identified abandoned U-channel) was also in
connection to concerned manhole and minor residue mud deposition was observed
within the surface drainage channel. Despite the above additional surface
drainage channel identified, the outlet point of concerned final manhole (in
connection with the observed drain hole) was observed plugged with concrete and
filled with rubbles as rectification measure to avoid any further contaminated
runoff discharge via the observed drain hole.
Nevertheless, the Contractor of
HY/2009/19 was reminded to conduct regular cleaning works for site surface
drainage channel to avoid accumulation of silt and soil and avoid potential
overflow by directing the surface runoff within the surface drainage channel to
proper collection point for necessary treatment prior to discharge. The
Contractor of HY/2009/19 was also reminded to check and review other surface
drainage channel within the construction site to avoid potential runoff related
impact via surface drainage channel to the nearby waters.
In addition, it was noticed that water
was discharged from a piping extending from City Garden and the discharged
water would result in seepage across the site hoarding into the abandoned
U-channel. The Contractor of HY/2009/19 was suggested to liaise with the City
Garden Management Office for proper connection of the observed pipping with
discharge to prevent further seepage water into the construction site.
8.0.25.
Forth public complaint regarding construction dust emission was referred
by EPD was received by ET on 05 April 2016 (Case Ref.: H08/RS/00007662-16). The
complainant reported that construction dust emission arising from drilling
activity from the construction site of Central – Wan Chai Bypass – Tunnel
(North Point Section) and Island Eastern Corridor Link (Contract No.
HY/2009/19).
ET confirmed with the Resident Site
Staff that drilling holes for installation of starter bars was carried out
under Contract HY/2009/19 at the vertical cut face of the existing IEC road
slab on 05 April 2016
Based on the site records confirmed by
RSS, drilling holes for installation of starter bars was carried out under
Contract HY/2009/19 at the vertical cut face of the existing IEC road slab on
05 April 2016 and according to the photo information provided by the EPD, no
dust suppression measures was implemented during the observed drilling works on
05 April 2016.
According to Air Pollution Control
Ordinance, for pneumatic or power-driven drilling, cutting and polishing, water
or a dust suppression chemical shall be continuously sprayed on the surface
where any pneumatic or power-driven drilling, cutting, polishing or other
mechanical breaking operation that causes dust emission is carried out, unless
the process is accompanied by the operation of an effective dust extraction and
filtering device.
Follow-up inspection was conducted on 06
April 2016, rectification actions including the use of vacuum suction to
extract dust generated during the concerned drilling works was observed
implemented by the Contractor of HY/2009/19 for starter bars drilling works.
8.0.26.
Fifth public complaint regarding landscape aspect was referred by RSS
was received by ET on 11 April 2016 (Case Ref.:2-2036525055). The complainant
reported that a tree (6 meters in height and 1.5 meters in diameter) was found
toppled at 111 Victoria Park Road, near Lamp post 38632 and blocking the
Pedestrian pathway on 27 March 2016.
ET confirmed with the Resident Site
Staff that the concerned tree was identified as T710 and no construction
activity in the vicinity of tree T710 on 27 March 2016 and no construction
works are required in or near its vicinity.
Based on the site records confirmed by
RSS, the concerned tree was identified as the retained tree T710 maintained
under the Contract of HY/2010/08 and the concerned tree T710 was located
outside the assessment area in the relevant Project EIA Report. No construction
works are required in the vicinity of concerned tree T710 and no construction
activity was conducted in the vicinity of tree T710 on 27 March 2016.
Nevertheless, based on RSS information, recent tree monitoring report indicates
an existing cavity at trunk and the concerned tree T710 has been recommended to
be felled in the tree risk assessment Form 2.
With respect to the observed incident of
the toppling of the concerned tree T710, the Contractor of HY/2010/08 was
instructed by RSS to remove the broken trunk/ remains to avoid impact to the
surroundings. The concerned tree T710 shall be compensated by the Contractor of
HY/2010/08 in accordance with the Development Bureau Technical Circular (Works)
No. 7/2015 and the detail on compensation would be further agreed with Victoria
Park Management Office. Follow-up inspection was conducted on 13 April 2016,
and the remaining parts of the concerned tree T710 was observed felled to avoid
further impact to nearby public road.
8.0.27.
Sixth public complaint regarding muddy dispersion referred by RSS was
received by ET on 13 April 2016. The complainant reported that muddy water was
observed to disperse from Contract HK/2009/02 site area to Victoria Harbour
occasionally as there was no silt curtain installed under the buoyancy floats.
The location concerned was the East of Star Ferry Piers (Contract No.
HK/2009/02).
ET confirmed with the Resident Site
Staff that no marine construction activities or land construction activities
under Contract HK/2009/02 at the concerned location on 12 April 2016.
Surface runoff control measures
including provision of concrete bund at the concerned location was implemented
by Contract HK/2009/02.
No soil & silt deposition along the
seawall at the concerned location on 12 April 2016.
No discharge point located in the
vicinity of the concerned location under Contract HK/2009/02.
Silt curtain with buoyancy floats acting
as anchor points was installed at Monitoring Station RW21-P789 for Water
intakes.
Based on the site records confirmed by
RSS, no marine construction activities or land construction activities was
carried out under Contract HK/2009/02 at the concerned location on 12 April
2016 and no soil and silt deposition was found along the seawall at the
concerned location and precautionary measures for site runoff control including
provision of concrete bund along boundary of site area near the waterfront
around the concerned location was implemented by the Contractor HK/2009/02. In
addition, no discharge point under Contract HK/2009/02 was located in the
vicinity of the concerned location. Based on information confirmed by RSS, the
buoyancy floats deployed at the concerned location are acting as the anchor
points for the silt curtain deployed around the WQM Station RW21-P789 for the
WSD and Cooling Water Intakes group.
Follow-up inspection was conducted on 14
April 2016, no surface runoff from the construction site nor discharge of
contaminated effluent was observed around the concerned location and
precautionary measures including the provision of concrete bund at the
concerned location was observed maintained by the Contractor of HK/2009/02 and
the silt curtain deployed around the WQM station RW21-P789 was generally in
order.
In view of the public concern on the
water quality, the Contractor of HK/2009/02 was reminded to maintain effective
surface runoff protection and provide proper collection point of construction
effluent around the concerned location to avoid potential surface runoff
related impact.
8.0.28.
Seventh public complaint regarding muddy water discharge referred by EPD
was received by ET on 13 April 2016 (EPD Ref.: H05/RS/00008367-16 dated 13
April 2016). The complainant reported that muddy water was discharged from the
construction work of Contract HK/2012/08 to the sea outside the Hong Kong
Academy for Performing Arts on 13 April 2016 morning.
ET confirmed with the Resident Site
Staff that internal transport of soil to the hopper barge for storage via
landing barge was conducted by Contractor of HK/2012/08 during 0800 hours to
1000 hours on 13 April 2016 at the sea outside the concerned location and 3
nos. of dump trucks were deployed for the operation.
Protection measure including provision
of sandbag bunding along the side of the landing barge was implemented by the
Contractor of HK/2012/08.
According to the relevant site records
provided by RSS, internal transport of soil to the hopper barge for storage via
landing barge was conducted by Contractor of HK/2012/08 during 0800 hours to
1000 hours on 13 April 2016 at the sea outside the concerned location and 3
nos. of dump trucks were deployed for the operation. Protection measure
including provision of sandbag bunding along the side of the landing barge was
implemented by the Contractor of HK/2012/08. In addition, amber rainstorm
warning signal was hoisted from 0630 hours to 1200 hours on 13 April 2016 and
during the above time period, muddy water was observed from the upstream of
culvert L outside the HK/2012/08 site.
Follow up inspection was conducted on 19
April 2016, protection measures including provision of sandbag bunding along
the side of the landing barge was implemented and no mud or soil deposition was
observed along the seawall and no discharge point was located within the
temporary water channel connecting the Culvert L outfall location to the
Victoria Harbour. In addition, piling works was observed at the north side of
Zone A1 on 19 April 2016 and construction effluent collection from piling work
via sedimentation tank to wastewater treatment facility was implemented and
steel barrier was installed around the piling works area to mitigate against
potential surface runoff related impact.
Nevertheless, in view of the public
concern, the Contractor was reminded to maintain adequate perimeter embankment
protection along the seawall boundary and maintain proper construction effluent
collection system to avoid potential runoff related impact to nearby waters.
8.0.29.
Eighth EPD complaint regarding noise nuisance referred by RSS was
received by ET on 27 May 2016 (EPD Ref: H05/RS/00012646-16 dated 27 May 2016).
The complainant reported that a generator was operated round-the-clock in the
Chun Wo- CRGL JV construction site near Wanchai Ferry Pier that cause noise
nuisance. (Contract No. HK/2009/02).
ET confirmed with the Resident Site
Staff that a generator deployed under Contract HK/2009/02 near the covered
walkway for Wanchai Ferry Pier at Portion 2 area and was operated from 1900hrs
on 24 May 2016 to 0700hrs on 25 May 2016 and from 1900hrs on 25 May 2016 to
0700hrs on 26 May 2016. The generator was used for the power supply of lighting
inside Tunnel Portions 1 and 2.
According to the relevant site records
provided by RSS, a generator deployed under Contract HK/2009/02 near the
covered walkway for Wanchai Ferry Pier at Portion 2 area and was operated from
1900hrs on 24 May 2016 to 0700hrs on 25 May 2016 and from 1900hrs on 25 May
2016 to 0700hrs on 26 May 2016. The generator was used for the power supply of
lighting inside Tunnel Portions 1 and 2. Based on review on site information,
relevant Construction Noise Permits GW-RS0516-16 and GW-RS0390-16 for the
operation of the concerned generator were confirmed in place while no
sufficient site information was considered available to demonstrate the use of
acoustic enclosure for the operation of the generator following the special
condition 3d item 4. Despite the above, the Contractor of HK/2009/02 has
suspended the use of the generator at the concerned location after 2300hours to
minimize potential noise concern to the surroundings from 28 May 2016.
Nevertheless, the Contractor of
HK/2009/02 was reminded to upkeep the site control system for construction
works carried out during restricted hours and night time for Construction Noise
Permit compliance and maintain regular maintenance of the plant and equipment
deployed to avoid potential nuisance to the nearby public.
8.0.30.
The construction programmes of individual contracts are provided in Appendix
8.1.