Tung Chung New Town Extension (TCNTE) is
one of the major initiatives under the Government's multi-pronged approach to
increase land supply to meet Hong Kong's medium- to long-term needs for
housing, economic and social developments. The Environmental Impact Assessment
(EIA) Report for TCNTE (Register No. AEIAR-196/2016) was approved on 8 April
2016 and the Environmental Permit (EP) No. EP-519/2016, covering the
construction and operation of TCNTE, was granted on 9 August 2016. The EIA
Report and EP cover both Tung Chung East (TCE) and Tung Chung West (TCW). ERM-Hong Kong, Limited (ERM) is
commissioned to undertake the role of Environmental Team (ET) for the
construction and operation of TCE Project (¡§the Project¡¨) in accordance with
the requirements specified
in the EP, Updated Environmental Monitoring and Audit (EM&A) Manual, EIA
Report of the TCNTE project and other relevant statutory requirements. The construction of the Project
commenced on 9 July 2018.
This is the Monthly EM&A report presenting the EM&A works
carried out during the period from 1 to 31 August 2018 for the Project in
accordance with the Updated EM&A Manual. As informed by the Contractor, major
activities in the reporting period are summarised in Table 1 below, together with the key issues and the key mitigation
measures:
Table 1 Major
Activities in the Reporting Period
|
Activities
|
Key Issues
|
Key
Mitigation Measures
|
|
Land-based
Works
|
|
|
|
¡P
Construction
of site office near Ying Tung Estate
¡P
Demolition
of site office near Century Link
¡P
Removal
of rock armour above +2.5mPD
¡P
Re-provision
of Pak Mong Pier
|
¡P
Dust
emission
¡P
Waste
management for C&D Materials
¡P
Noise
from barge and plant operation during normal working hours and restricted
hours
|
¡P
Good
site practices
¡P
Regular
water spraying on stockpiles
¡P
Sorting
and reuse of C&D materials as far as practicable
|
|
|
|
|
|
Marine-based
Works
|
|
|
|
¡P
Installation
of pipe piles and sheetpiles for ground investigation and wave protection
measures
¡P
Removal
of rock armour below +2.5mPD
¡P
Marine
ground investigation works
¡P
Laying
of geotextile and sand blanket for reclamation works and Deep Cement Mixing
(DCM) trial embankment
|
¡P
Elevation
in SS due to sediment loss from sand blanket laying works
¡P
Disturbance
to Chinese White Dolphin
|
¡P
Provision
of perimeter silt curtain for the Project
¡P
Implementation
of Dolphin Watching for the marine-based works
|
A summary of monitoring and audit activities conducted in the reporting
period is listed below:
Air Quality Monitoring 5
sessions
Noise Monitoring 5
sessions
Water Quality Monitoring 12
sessions
Environmental Site Inspection 5
sessions
Environmental Management Meeting 1
session
Environmental auditing works, including weekly site inspections of
construction works conducted by the ET, audit of works vessels and audit of
implementation of Dolphin Watching Plan were conducted in the reporting
period. In addition, the ET
provided a training on dolphin watching during the reporting period. Based on information including ET¡¦s
observations for the reporting period, environmental pollution control and
mitigation measures for the Project were properly implemented.
Snapshots of EM&A Activities in the Reporting
Period
|
|
|
|
Dust
Monitoring conducted by ET
|
Spill
Response Kit checked by ET
|
|
|
|
|
Silt Curtain
visually checked by ET
|
Noise
Monitoring conducted by ET
|
Breaches of Action
and Limit Levels for Air Quality
No exceedance of Action and Limit Levels was recorded for construction
air quality monitoring in the reporting period.
Breaches of
Action and Limit Levels for Noise
No exceedance of Limit Levels was recorded for construction noise
monitoring in the reporting period.
However, Action Level was triggered from three (3) environmental
complaints related to noise nuisances received on 13, 21 and 24 August 2018
during the reporting period.
Investigations were conducted for each of the noise nuisances in
accordance with the Event and Action Plan and the complaint handling process as
stated in the Complaint Management Plan.
It is concluded that the construction works were conducted in accordance
with the relevant statutory requirements, including the EP and the Construction
Noise Permit. Nevertheless, the
Contractor was reminded to reduce construction noise levels, as far as
practicable, especially when working next to the residential areas around the
Project.
Breaches of Action
and Limit Levels for Water Quality
The water quality monitoring results obtained during the reporting
period generally complied with the corresponding Action and Limit Levels
stipulated in the Baseline Monitoring Report. Relevant investigation and follow-up
actions were conducted according to the EM&A programme when the water
quality in terms of Dissolved Oxygen (DO), Turbidity and Suspended Solids (SS)
exceeded the corresponding Action and Limit Levels. The preliminary investigation findings
suggested that the exceedances were not related to the Project.
Environmental
Complaints, Non-compliance & Summons
There was no notification of summons or successful prosecution recorded
in the reporting period.
Three (3) environmental complaints related to noise nuisances were
received on 13, 21 and 24 August 2018 during the reporting period. Investigations were conducted for each
of the environmental complaints in accordance with the complaint handling
process as stated in the Complaint Management Plan. Based on the information provided by the
Contractor, supplemented by the regular and ad-hoc noise monitoring conducted
around the Project area, it is considered that the Contractor had complied with
the relevant statutory requirements for the construction works, including the
EP and the Construction Noise Permit.
Nevertheless, the Contractor was reminded to reduce construction noise
levels, as far as practicable, especially when working next to the residential
areas around the Project. The valid
construction noise permits shall be displayed at the relevant construction
areas for public information. The
ET will continue to check the implementation status of the mitigation measures
and conduct noise monitoring as per EM&A requirements.
Reporting Change
There was no reporting change in the reporting period.
Upcoming
Works for the Next Reporting Period
Works to be undertaken in the next monitoring period of September 2018
are summarized in Table 2 below,
together with the key issues and the key mitigation measures:
Table 2 Major
Activities for the Next Reporting Period
|
Activities
|
Key Issues
|
Key
Mitigation Measures
|
|
Land-based
Works
|
|
|
|
¡P
Construction
of site office near Ying Tung Estate
¡P
Demolition
of site office near Century Link
¡P
Removal
of rock armour above +2.5mPD
¡P
Re-provision
of Pak Mong Pier
|
¡P
Dust
emission
¡P
Waste
management for C&D Materials
¡P
Noise
from barge and plant operation during normal working hours and restricted
hours
|
¡P
Good
site practices
¡P
Regular
water spraying on stockpiles
¡P
Sorting
and reuse of C&D materials as far as practicable
|
|
|
|
|
|
Marine-based
Works
|
|
|
|
¡P
Installation
of pipe piles and sheetpiles for ground investigation and wave protection
measures
¡P
Removal
of rock armour below +2.5mPD
¡P
Installation
of silt curtain near Tai Ho Wan
¡P
Laying
of geotextile and sand blanket and ground improvement works for reclamation
works and Deep Cement Mixing (DCM) trial embankment
¡P
Marine
filling works
¡P
Diversion
of existing box culvert
¡P
Marine
ground investigation works
|
¡P
Elevation
in SS due to sediment loss from sand blanket laying and marine filling works
¡P
Disturbance
to Chinese White Dolphin
|
¡P
Provision
of perimeter silt curtain for the Project
¡P
Implementation
of Dolphin Watching for the marine-based works
¡P
Provision
of a leading seawall of at least 200m before marine filling works
|
The ET will keep track on the construction works to confirm compliance
of environmental requirements and the proper implementation of all necessary
mitigation measures.
1
Introduction
Tung Chung New Town Extension (TCNTE) is
one of the major initiatives under the Government's multi-pronged approach to
increase land supply to meet Hong Kong's medium- to long-term needs for housing,
economic and social developments. The Environmental Impact Assessment (EIA)
Report for TCNTE (Register No. AEIAR-196/2016) was approved on 8 April 2016 and
the Environmental Permit (EP) No. EP-519/2016, covering the construction and
operation of TCNTE, was granted on 9 August 2016. The EIA Report and EP cover
both Tung Chung East (TCE) and Tung Chung West (TCW).
ERM-Hong Kong, Limited (ERM) is
commissioned to undertake the role of Environmental Team (ET) for the
construction and operation of TCE Project (¡§the Project¡¨) in accordance with
the requirements specified
in the EP, Updated Environmental Monitoring and Audit (EM&A) Manual (),
EIA Report of the TCNTE project () and other relevant statutory requirements.
The
TCE Project (¡§the Project¡¨) comprises the following elements:
1.
Reclamation
of the seabed by a non-dredged method at TCE to form a total of about 130
hectares of land;
2.
Construction
of about 4.9 kilometres of seawalls, with an eco-shoreline, three drainage box
culvert outfalls, three circulation drains and a seawater intake at TCE;
3.
Construction
of a 470-metre (m) long multi-cell drainage box culvert at TCE;
4.
Provision
of infrastructure for Tung Chung Area 58, including construction of a single
two-lane road with a footpath of about 270 m in length and the associated
utility works;
5.
Construction
of roads, footbridges, drainage, sewerage, waterworks, sewage and salt water
pumping stations, fresh water and salt water service reservoirs, and flood
protection measures;
6.
Provision
of new cycle tracks connecting to the existing cycle track network;
7.
Landscaping,
reprovisioning and ancillary works; and
8.
Implementation
of environmental mitigation measures and environmental monitoring and audit
works.
The location of the Project, including the
associated infrastructure works, is shown in Figure 1.1. The construction and the reclamation
related marine works of the Project commenced on 9 and 13 July 2018,
respectively.
This is the Monthly EM&A Report for the Project which summarises the
key findings of the EM&A programme during the reporting period from 1 to
31 August 2018 for the construction
works.
The organization structure of the Project is shown in Annex
A. The key personnel
contact names and contact details are summarized in Table 1.1 below.
Table 1.1 Contact Information of Key
Personnel
|
Party
|
Position
|
Name
|
Telephone
|
|
Civil Engineering and Development Department
|
Senior Engineer
|
Eddie Lam
|
2231 4445
|
|
Engineer
|
Colin Wong
|
2231 4417
|
|
Engineer¡¦s Representative
(AECOM Asia Company Limited)
|
Principal Resident Engineer
|
Frankie Fan
|
9325 0903
|
|
Senior Resident Engineer
|
Robo Lo
|
6622 1130
|
|
Resident Engineer
|
Vincent Leung
|
9800 0448
|
|
Senior Inspector of Works
|
C K Liu
|
9433 6255
|
|
Environmental Team (ET) (ERM-Hong Kong, Limited)
|
ET Leader
|
Jovy Tam
|
2271 3113
|
|
Deputy ET Leader
Deputy ET Leader
|
Raymond Chow
Louis Kwan
|
2271 3114
9275 0975
|
|
Independent Environmental Checker
(IEC)
(Black & Veatch Hong Kong
Limited)
|
IEC
|
Manuel Chua
|
2608
7314
|
|
Deputy IEC
|
Ivan Ting
|
9222
9490
|
|
Contractor (Contract No. NL/2017/03 TCNTE ¡V
Reclamation and Advance Works)
(Build King ¡V SCT Joint Venture)
|
Site Agent
|
Keith Tse
|
9383 6173
|
|
Construction Team Leader
|
Lee Wai Man
|
9481 6024
|
|
Environmental Officer
|
Calvin Sze
|
9205 9277
|
|
|
24-hour Complaint Hotline
|
-
|
9862 2910
|
The programme of the construction is shown in Annex B.
As informed by the Contractor, details of the major works carried out in
this reporting period are listed below:
Land-based Works:
Ÿ
Construction
of site office near Ying Tung Estate;
Ÿ
Demolition
of site office near Century Link;
Ÿ
Removal
of rock armour above +2.5mPD; and
Ÿ
Re-provision
of Pak Mong Pier.
Marine-based Works:
Ÿ Installation of pipe piles and sheetpiles for ground
investigation and wave protection measures;
Ÿ Removal of rock armour below +2.5mPD;
Ÿ Marine ground investigation works; and
Ÿ Laying of geotextile and sand blanket for reclamation
works and Deep Cement Mixing (DCM) trial embankment.
The environmental mitigation implementation schedule
is presented in Annex C.
The status for all environmental aspects are presented in Table 1.2. The EM&A requirements remained
unchanged during the reporting period.
Table 1.2 Summary of Status for the
Environmental Aspects under the Updated EM&A Manual
|
Parameters
|
Status
|
|
Air
Quality
|
|
Baseline Monitoring
|
The results of baseline air quality monitoring for
TCE were reported in Baseline Monitoring Report and submitted to EPD under EP
Condition 3.4
|
|
Impact Monitoring
|
On-going for TCE, monitoring conducted three times
every six days
|
|
|
|
|
Noise
|
|
Baseline Monitoring
|
The results of baseline noise monitoring for TCE
were reported in Baseline Monitoring Report and submitted to EPD under EP
Condition 3.4
|
|
Impact Monitoring
|
On-going for TCE, monitoring conducted once per week
|
|
Impact Monitoring for Road Traffic Noise during
Operational Phase
|
To be conducted during operational phase
|
|
Fixed Noise Commissioning Test
|
To be implemented by the Contractor
|
|
|
|
|
Water
Quality
|
|
Baseline Monitoring
|
The results of baseline water quality monitoring for
TCE were reported in Baseline Monitoring Report and submitted to EPD under EP
Condition 3.4
|
|
Impact Monitoring
|
On-going for TCE, monitoring conducted three times
per week
|
|
|
|
|
Waste
Management
|
|
Waste Monitoring
|
On-going
|
|
|
|
|
Land
Contamination
|
|
Contamination Assessment Plan (CAP), Remediation
Action Plan (RAP) and Remediation Report (RR)
|
Pending environmental site investigation and lab
testing works for TCW
|
|
|
|
|
Ecology
|
|
Monitoring for Compensation Woodland
|
To be conducted when compensation woodland are
planted
|
|
Monitoring for Emergent Plant inside the future
River Park
|
To be conducted in the future River Park
|
|
Monitoring for Translocated Amphibians of
Conservation Importance
|
To be conducted after translocation
|
|
Monitoring for Preserved/Transplanted Plant Species
of Conservation Importance
|
To be conducted after preservation/ transplantation
|
|
Monitoring for Tung Chung Stream EIS and Wong Lung
Hang EIS
|
To be conducted under TCW
|
|
Eco-shoreline Monitoring
|
To be conducted when eco-shoreline at TCE PDA and
Road P1 is built
|
|
Tung Chung Bay and Tai Ho Wan Baseline Monitoring
|
The results of baseline soft shore ecological
monitoring at Tung Chung Bay and Tai Ho Wan were reported in Baseline
Monitoring Report and submitted to EPD under EP Condition 3.4
|
|
Tung Chung Bay and Tai Ho Wan Impact Monitoring
|
Scheduled to be conducted in September
2018
|
|
|
|
|
Landscape
and Visual
|
|
|
Baseline Monitoring
|
The results of baseline landscape and visual
monitoring were reported in Baseline Monitoring Report and submitted to EPD
under EP Condition 3.4
|
|
|
|
|
Site
Environmental Audit
|
|
Regular Site Inspection
|
On-going
|
|
Dolphin Watching Plan implementation measures
|
Under implementation by the Contractor
|
|
Works Vessel Travel Route Plan implementation
measures
|
Under implementation by the Contractor
|
|
Silt Curtain Deployment Plan implementation measures
|
Under implementation by the Contractor
|
|
|
|
|
Spill Response Plan implementation measures
|
Under implementation by the Contractor
|
|
|
|
|
Waste Management Plan implementation measures
|
Under implementation by the Contractor
|
|
|
|
|
Complaint Hotline and Email Channel
|
Under implementation by the Contractor
|
|
Environmental Log Book
|
On-going
|
Taking into account the construction works, impact monitoring of air
quality, noise, water quality and waste management were carried out in the
reporting period. The monitoring schedule
of air quality, noise and water quality monitoring are provided in Annex
E2, Annex F2 and Annex G2, respectively.
The EM&A programme also involved environmental site inspections and
related auditing conducted by the ET for checking the implementation of the
required environmental mitigation measures recommended in the approved EIA
Report and relevant EP submissions, including Dolphin Watching Plan, Works
Vessel Travel Route Plan, Silt Curtain Deployment Plan, Spill Response Plan and
Waste Management Plan. To promote
the environmental awareness and enhance the environmental performance of the
contractors, environmental trainings and regular environmental management
meetings were conducted during the reporting period, which are summarized as
below:
Ÿ One (1) dolphin watcher
training
provided by ET on 15 August 2018;
Ÿ One (1) environmental management meeting was held with
the Contractor, ER, ET, IEC and CEDD on 23 August 2018;
Ÿ Environmental toolbox trainings on light pollution
control and noise mitigation measure provided by the contractor for the workers
on 4 and 27 August 2018;.
The status
of statutory environmental compliance with the EP conditions under the EIAO,
submission status under the EP and implementation status of mitigation measures
are presented in Table 1.3.
Table 1.3 Status
of Submissions and Implementation Status of Mitigation Measures under EP
|
EP
Condition
|
Submission
/ Implementation Status
|
Status
|
|
2.1
|
Set up of Community and Professional Liaison Groups
|
Community and Professional Liaison Groups were set
up.
|
|
2.1
|
Complaint Management Plan
|
Updated Plan was submitted on 1 August 2018 and
accepted by EPD on 7 August 2018
|
|
2.5
|
Employment of Qualified Ecologist(s)
|
Qualified Ecologists have been employed to carry out
work relating to ecological aspects.
|
|
2.6
|
Employment of Surveillance Team
|
Surveillance Team has been employed to conduct
regular site inspection.
|
|
2.11
|
Management Organizations
|
Accepted by EPD
|
|
2.12
|
Construction Works Schedule and Location Plans
|
Accepted by EPD
|
|
2.13
|
Works Vessel Travel Route Plan
|
Accepted by EPD
|
|
2.14
|
Eco-shoreline Implementation Plan
|
To be prepared no
later than 3 months before the commencement of construction of the
eco-shoreline at TCE
|
|
2.15
|
Dolphin Watching Plan
|
Accepted by EPD
|
|
2.16
|
Silt Curtain Deployment Plan
|
Accepted by EPD
|
|
2.17
|
Spill Response Plan
|
Accepted by EPD
|
|
2.18
|
Plan on Provision of Buffer Zones
|
To be prepared no later than 3 months before the
commencement of construction works at Tung Chung Valley
|
|
2.19
|
River Park Plan
|
To be prepared no later than 3 months before the
commencement of construction works at Tung Chung Valley
|
|
2.20
|
Habitat Enhancement and Translocation Plan for
Amphibian Species of Conservation Importance
|
To be prepared no later than 3 months before the
commencement of construction works at Tung Chung Valley
|
|
2.21
|
Detailed Preservation and/or Translocation Plan for
Plant Species of Conservation Importance
|
To be prepared no later than 3 months before the
commencement of construction works at Tung Chung Valley
|
|
2.22
|
Detailed Compensatory Woodland Planting Plan
|
To be prepared no later than 3 months before the
commencement of construction works at Tung Chung Valley
|
|
2.23
|
Plan for Review of Use of New Low Noise Road
Surfacing Material(s)
|
To be prepared no later than 3 months before the
commencement of roadworks
|
|
2.24
|
Waste Management Plan
|
Accepted by EPD
|
|
2.25
|
(i) no dredging of marine sediment shall be carried
out for the Project
(ii) all reclamation filling
works shall be carried out within a leading seawall of at least 200m; and
(iii)
silt curtains surrounding the reclamation area shall be deployed in
accordance with the Silt Curtain Deployment Plan
|
Under implementation
Under implementation
Under implementation
|
|
2.26
|
Implement Silt Curtain Deployment Plan and Spill
Response Plan
|
Under implementation
|
|
2.27
|
Implement dolphin exclusion zone of 250m around the
reclamation site at Tung Chung East during the installation of the perimeter
silt curtains and any re-deployment of the perimeter silt curtains by
Qualified Ecologist(s)
|
Under implementation
|
|
2.28
|
Once the perimeter silt curtains are installed or
re-deployed, the Dolphin Watching Plan shall be implemented as part of the
EM&A programme
|
Under implementation
|
|
2.29
|
(i) no underwater blasting and percussive piling
shall be carried out for the Project; and
(ii)
air compressors and other noisy equipment mounted on works vessels shall
be acoustically-decoupled
|
Under implementation
Under implementation
|
|
2.30
|
Implement Works Vessel Travel Route Plan
Implement Eco-shoreline Implementation Plan
Implement Dolphin Watching Plan
|
Under implementation
To be implemented
Under implementation
|
|
2.31
|
Implement Plan on Provision of Buffer Zones, River
Park Plan, Habitat Enhancement and Translocation Plan for Amphibian Species
of Conservation Importance, Detailed Preservation and/or Translocation Plan
for Plant Species of Conservation Importance and Detailed Compensatory
Woodland Planting Plan
|
To be implemented
|
|
2.32
|
Implement Plan for review of the use of new road
surfacing material(s)
Implement Waste Management Plan
|
To be implemented
Under implementation
|
|
2.33
|
Install
noise barriers and low noise road surfacing at the extended Chung Mun
Road and Road D3
All
noise mitigation measures implemented shall be properly maintained during the
operation of the above roads
|
To be implemented
|
|
2.34
|
Implement a deodouriser with an odour removal
efficiency of at least 95% shall be installed, operated and maintained within
each sewage pumping station. The exhaust
of the deodouriser shall be oriented away from sensitive receivers; and all odourous facilities of each sewage pumping station shall
be enclosed and negative pressure shall be maintained within the facilities.
|
To be implemented
|
|
2.35
|
Enclose
all the pumps inside a building structure
|
To be implemented
|
|
2.36
|
(i) a
100% standby pumping capacity shall be installed and maintained
(ii) a
50% spare pumping capacity shall be installed and maintained
(iii) dual-feed
power supply shall be installed and maintained; and
(iv) an emergency
facility with a 6-hour storage capacity of average dry weather flow shall be
installed and maintained.
|
To be implemented
To be implemented
To be implemented
To be implemented
|
The environmental licenses and permits, including environmental permit,
waste discharge license, registration as chemical waste producer and
construction noise permit, which are valid in the reporting period are
presented in Annex D. No
non-compliance with environmental statutory requirements was recorded.
2
EM&A Results for Tung Chung East
The EM&A programme for the Project required environmental monitoring
for air quality, noise, water quality and marine ecology as well as
environmental site inspections for air quality, noise, water quality, waste
management, marine ecology and landscape and visual impacts. The EM&A requirements and related
findings for each component are summarized in the following sections.
2.1.1
Monitoring
Requirements and Equipment
According to the Updated
EM&A
Manual ()
of the Project, impact air quality monitoring in terms of 1-hour Total Suspended Particulate (TSP) was
conducted three (3) times every six (6) days when the highest dust impact was
expected. The Action and Limit
Levels of the air quality monitoring is provided in Table 2.1 below.
Table 2.1 Action
and Limit Levels for 1-hour TSP
|
Location
|
Action Level, µg/m3
|
Limit Level, µg/m3
|
|
Monitoring station for Tung Chung East
|
279
|
500
|
Portable
direct reading dust meters were used to measure 1-hour TSP levels in
undertaking the air quality monitoring for the Project. The proposed use of portable direct
reading dust meters was submitted to IEC and obtained agreement from the IEC as
stated in Section 5.5 of the Updated EM&A Manual. With the use of direct reading dust meter,
it can allow prompt and direct results for the EM&A reporting and the
implementation of the event and action plan. The portable direct reading dust meter
would be calibrated every year against High Volume Sampler (HVS) to check the validity
and accuracy
of the results measured by direct reading method.
The monitoring location and equipment used in the
impact air quality monitoring programme
are summarized in Table 2.2 and
illustrated in Figure 2.1. Copies of the calibration certificates
for the equipment are presented in Annex
E1, which showed that the portable direct
reading dust meter is capable of providing comparable results with that
provided by a HVS.
Table 2.2 Air
Quality Monitoring Details
|
Monitoring
Station
|
Location
|
Parameter
|
Frequency
and Duration
|
Monitoring
Dates
|
Equipment
|
|
DM-1
|
Tung
Chung Area 56 ¡V Planned Public Rental Housing Development
|
1-hour TSP
|
Three times per six days during
the construction period of the Project
|
6, 10, 16, 22 & 28 Aug 2018
|
1-hour TSP Dust Meter
SIBATA LD-5R (S/N:
620402)
|
|
Remark:
It should be noted that
impact monitoring at other construction dust monitoring locations at TCE as stated in the Updated EM&A Manual will commence after the flat
intake (for Monitoring Stations DM-2, DM-3 and DM-4).
|
2.1.2
Monitoring
Schedule for the Reporting Month
The schedule for air quality monitoring during the reporting period is
provided in Annex E2.
2.1.3
Results and
Observations
The monitoring results for 1-hour TSP are summarized in Table 2.3. The monitoring data and the graphical
presentation are provided in Annex E3.
Table 2.3 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
|
Monitoring Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level
(µg/m3)
|
Limit Level
(µg/m3)
|
|
DM-1
|
75
|
29-205
|
279
|
500
|
The major dust sources in the reporting period included excavation and
sand blanket laying works under the Project as well as nearby traffic
emissions.
All the 1-hour TSP results were below the
Action and Limit Levels at the monitoring location in the reporting
period. No action is thus required
to be undertaken in accordance with the Event and Action Plan presented in Annex
E4.
2.2.1
Monitoring
Requirements and Equipment
According to the Updated EM&A Manual ()
of the Project, impact noise monitoring was conducted
once per week during the construction phase of the Project. The Action and Limit Level for
construction noise of the Project is provided in Table 2.4 below.
Table 2.4 Action and Limit Levels
for Construction Noise
|
Time Period
|
Action Level
|
Limit Level
|
|
0700 - 1900 hours on normal weekdays
|
When one documented complaint is received
|
75 dB(A) *
|
Notes:
Limit level is exceeded
when Leq ≥ 75
dB(A). If works
are to be carried out during restricted hours, the conditions stipulated in the
construction noise permit issued by the Noise Control Authority have to be
followed.
* Reduce to 70 dB (A) for schools and 65
dB (A) during school examination periods.
Noise monitoring was performed using sound level meter at the designated
monitoring station NMS-CA-4 (Figure 2.2; Table 2.5) in
accordance with the requirements stipulated in the Updated EM&A
Manual. Acoustic calibrator was
deployed to check the sound level meters at a known sound pressure level. Details of the deployed equipment are
provided in Table 2.5. Copies of the calibration certificates
for the equipment are presented in Annex F1.
Table 2.5 Noise
Monitoring Details
|
Monitoring
Station
|
Location
|
Parameter
|
Frequency
and Duration
|
Monitoring
Dates
|
Equipment
|
|
NMS-CA-4
|
Residential
premise in the reclamation area next to Tung Chung East
|
30-minute measurement between 0700 and 1900 on
normal weekdays (Monday to Saturday). Leq, L10 and L90
would be recorded.
|
Once per week for 30 mins
during the construction period of the Project
|
6, 10, 16, 22 & 28 August 2018
|
Sound Level Meter: Rion NL-52 (S/N: 00331805)
Acoustic Calibrator: LARSON DAVIS CAL200 (S/N:
11333)
|
|
Remark:
It should be noted that
impact monitoring at other construction noise monitoring locations at TCE as stated in the Updated EM&A Manual will commence after the flat intake of residential premise in TCE (for Monitoring Stations NMS-CA-1) and operation of schools (for Monitoring Stations NMS-CA-2 and NMS-CA-3).
|
2.2.2
Monitoring
Schedule for the Reporting Month
The schedule for noise monitoring during the reporting period is provided
in Annex F2.
2.2.3
Results and
Observations
Results for noise monitoring are summarized in Table 2.6. The
monitoring data and the graphical presentation are provided in Annex
F3.
Table 2.6 Summary
of Construction Noise Monitoring Results in the Reporting Period
|
Monitoring
Station
|
Average , dB(A),
Leq (30mins)
|
Range, dB(A),
Leq (30mins)
|
Limit Level, dB(A),
Leq (30mins)
|
|
NMS-CA-4
|
65.1
|
59.9-67.2
|
75
|
Major noise sources during the noise monitoring included noise from
armour rock removal, sheet piling and grab barge works, and nearby traffic
noise and aircraft noise.
No noise Limit Level exceedance was recorded in the reporting period. However,
Action Level was triggered from three (3) environmental complaints related to
noise nuisances received on 13, 21 and 24 August 2018 during the reporting
period. Investigation was conducted
for each of the complaints in accordance with the Event and Action Plan (Annex
F4) and the details are provided
in Section 2.9.
2.3.1
Monitoring
Requirements and Equipment
Impact water quality monitoring was carried out to ensure that any deterioration
of water quality was detected, and that timely action was taken to rectify the
situation. Impact water quality
monitoring was undertaken three days per week since the commencement of marine
works during the reporting period in accordance with the Updated EM&A
Manual. Each impact water quality
monitoring was scheduled such that the interval between two impact water
quality monitoring was more than 36 hours to record representative water
quality data throughout the week during the marine works.
Two
(2) replicate in-situ measurements
and samples were collected at each monitored water depth of each designated
monitoring stations. Dissolved
Oxygen (DO), pH value, salinity, temperature and turbidity were measured in-situ whereas the level of suspended
solids (SS) were determined by ALS Technichem (HK) Pty
Ltd which is a HOKLAS accredited laboratory.
The Action and Limit Levels of the water quality monitoring are provided
in Table 2.7.
Table 2.7 Action and Limit Levels
for Water Quality
|
Parameters
|
Action Level
|
Limit Level
|
|
DO in mg/L
(Surface, Middle & Bottom)
|
Surface and Middle
5.9 mg/L [1]
Bottom
5.6 mg/L
|
Surface and Middle
4 mg/L [1]
Bottom
2 mg/L
|
|
SS in mg/L (Depth-averaged)
|
13.5 mg/L
or
120% of upstream control station at the same tide of the same day, whichever is higher. [2]
|
23.5 mg/L
or
130% of upstream control station at the same tide of the same day, whichever is higher. [2]
|
|
Turbidity in NTU (Depth-averaged)
|
17.1 NTU
or
120% of upstream control station at the same tide of the same day, whichever is higher. [2]
|
23.5 NTU
or
130% of upstream control station at the same tide of the same day, whichever is higher. [2]
|
Notes:
(1) For
DO, non-compliance occurs when monitoring results is lower than the limits.
(2) For SS and Turbidity,
non-compliance occurs when monitoring results is larger than the limits
The locations of the monitoring stations under the
Project are shown in Figure 2.3 and Table 2.8.
Table 2.8 Locations
of Impact Water Quality Monitoring Stations and the Corresponding Monitoring
Requirements
|
Monitoring
Station
|
Description
|
Coordinates
|
Parameters (1)
|
Frequency
|
Depth
|
|
|
|
Easting
|
Northing
|
|
|
|
TCE-WQM1
|
Near Airport Channel
|
811838
|
817341
|
Ÿ Dissolved Oxygen (DO) (mg/L and % saturation)
Ÿ Temperature (¢XC)
Ÿ Turbidity (NTU)
Ÿ Salinity (ppt)
Ÿ pH
Ÿ Water depth (m)
Ÿ Suspended Solid (SS)
(mg/L)
|
Impact monitoring: 3 days per week, at mid-flood and mid-ebb
tides during the construction period of the Project
|
3 water depths: 1m
below sea surface,
mid-depth and 1m
above seabed. If the water depth is less than 3m,
mid-depth sampling only. If water
depth less than 6m, mid-depth may be omitted
|
|
TCE-WQM2a
|
Marine Park 1
|
814439
|
819879
|
|
TCE-WQM2b
|
Marine Park 2
|
814439
|
821905
|
|
TCE-WQM3A (2)
|
Outlet of Tai Ho Wan
|
814705
|
817859
|
|
TCE-WQM4
|
HKBCF
|
813344
|
818849
|
|
TCE-C1
|
Control Station - Outside
Airport Channel
|
804247
|
815620
|
|
TCE-C2
|
Control Station - Sunny Bay
|
819460
|
821473
|
|
Notes:
(1) In addition to the abovementioned parameters, other relevant data shall
also be recorded, including monitoring location / position, time, water depth,
tidal stages, weather conditions and any special phenomena or work underway
at the construction site.
(2) The sampling location was shifted for ~80m north
with coordinates 814680 (Easting) and 817940 (Northing) due to the presence
of nearby work barges since 26 July 2018. The ET was liaising with the
Contractor to obtain information on the expected duration and extent of the
works for further proposal of alternative monitoring location.
|
Table 2.9 summarizes the equipment
used in the impact water quality monitoring
works. Copies of the calibration
certificates are attached in Annex
G1.
Table 2.9 Water Quality
Monitoring Equipment
|
Equipment
|
Model
|
|
Water Sampler
|
Kahlsico Water Samplers
|
|
Multi-parameter Water
Quality System (measurement of DO,
Temperature, Turbidity, Salinity and pH) (Note 1)
|
YSI ProDSS (S/N:
16H104233; S/N: 16H104234; S/N: 17E100747; S/N: 17H105557)
YSI 6920 v2 (S/N: 0001C6A7; S/N: 00019CB2)
|
|
Note 1: Two of the
multi-parameter water quality systems were used at each monitoring station
during each survey day.
|
2.3.2
Monitoring
Schedule for the Reporting Month
The schedule for water quality monitoring during the reporting period is
provided in Annex G2.
2.3.3
Results and
Observations
A total of 12 monitoring events for impact water quality monitoring were
conducted at all designated monitoring stations during the reporting
period. The monitoring event on 14
August 2018 was cancelled due to the issue of Strong Wind Signal No. 3. Impact water quality monitoring results
and graphical presentations are provided in Annex G3.
Action level exceedances were recorded for water
quality impact monitoring in the reporting period. Investigations on the action level
exceedances were conducted and summarized in Table 2.10 below.
Table
2.10 Details
of Exceedances Recorded for Water Quality Monitoring
|
Group
|
Date
|
Tide
|
Parameter
|
Station
|
Type
|
Remarks
|
|
1
|
02 Aug 2018
|
ME
|
DO(B)
|
TCE-WQM1
|
Action
|
The
exceedances were not considered as caused by the construction of the Project
due to the following reasons:
Ÿ Areas of reclamation
related marine works undertaken under the Project were surrounded by silt
curtain, which was inspected daily by the Contractor and endorsed by ER and
observed to be in good condition and functioning well.
Ÿ DO levels at
the monitoring stations were higher than or similar to those at corresponding
control/upstream stations.
Ÿ During summer
season, the marine water experienced temperature and salinity stratification,
where layers of water build up with different levels of temperature and
salinity which prevent mixing of water masses, leading to hypoxia (low oxygen
levels) at the sea bottom.
|
|
|
|
ME
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2b
|
Action
|
|
|
04 Aug 2018
|
ME
|
DO(B)
|
TCE-WQM1
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2a
|
Action
|
|
|
|
ME
|
DO(B)
|
TCE-WQM2b
|
Action
|
|
|
|
ME
|
DO(B)
|
TCE-WQM3A
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2b
|
Action
|
|
|
07 Aug 2018
|
ME
|
DO
|
All Stations
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
DO(S&M)
|
TCE-WQM4
|
Action
|
|
|
09 Aug 2018
|
ME
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
ME
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM3A
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE_WQM3A
|
Action
|
|
|
11 Aug 2018
|
ME
|
DO
|
All Stations
|
Action
|
|
|
|
MF
|
DO
|
All Stations
|
Action
|
|
|
16 Aug 2018
|
ME
|
DO
|
All Stations
|
Action
|
|
|
|
MF
|
DO
|
All Stations
|
Action
|
|
|
18 Aug 2018
|
ME
|
DO
|
All Stations
|
Action
|
|
|
|
MF
|
DO
|
All Stations
|
Action
|
|
|
21 Aug 2018
|
ME
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2a
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM3A
|
Action
|
|
|
|
ME
|
DO(S&M)
|
TCE-WQM4
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM3A
|
Action
|
|
|
23 Aug 2018
|
ME
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
ME
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
ME
|
DO(B)
|
TCE-WQM3A
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM2b
|
Action
|
|
|
25 Aug 2018
|
ME
|
DO(B)
|
TCE-WQM1
|
Action
|
|
|
|
ME
|
DO(B)
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO(B)
|
TCE-WQM2b
|
Action
|
|
|
28 Aug 2018
|
ME
|
DO
|
All Stations
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2a
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
DO
|
TCE-WQM3A
|
Action
|
|
|
|
MF
|
DO(S&M)
|
TCE-WQM4
|
Action
|
|
|
30 Aug 2018
|
ME
|
DO
|
TCE-WQM1
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2a
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM2b
|
Action
|
|
|
|
ME
|
DO
|
TCE-WQM3A
|
Action
|
|
|
|
ME
|
DO(S&M)
|
TCE-WQM4
|
Action
|
|
|
|
MF
|
DO
|
All Stations
|
Action
|
|
|
|
|
|
|
|
|
|
2
|
2 Aug 2018
|
MF
|
SS
|
TCE-WQM4
|
Action
|
The exceedances
were not considered as caused by the construction of the Project due to the
following reasons:
Ÿ Areas of
reclamation related marine works undertaken under the Project were surrounded
by silt curtain, which was inspected daily by the Contractor and endorsed by
ER and observed to be in good condition and functioning well.
Ÿ The monitoring stations are
located upstream from the Project works area and no action / limit level
exceedances were recorded at other monitoring stations during the same tide
of monitoring event.
|
|
|
9 Aug 2018
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
|
|
21 Aug 2018
|
MF
|
SS
|
TCE-WQM4
|
Action
|
|
|
28 Aug 2018
|
ME
|
SS
|
TCE-WQM1
|
Action
|
|
|
28 Aug 2018
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
|
|
30 Aug 2018
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3
|
11 Aug 2018
|
ME
|
SS
|
TCE-WQM3A
|
Action
|
The
exceedances were not considered as caused by the construction of the Project
due to the following reasons:
Ÿ Areas of
reclamation related marine works undertaken under the Project were surrounded
by silt curtain, which was inspected daily by the Contractor and endorsed by
ER and observed to be in good condition and functioning well.
Ÿ No construction works were
conducted near Tai Ho Wan, as such, the exceedances for station TCE-WQM3A
were unlikely to be caused by the
construction of the Project.
Ÿ The monitoring was
conducted during adverse weather.
Surface runoff from the nearby land mass (e.g. Tai Ho Wan, near
airport channel) to the sea might be resulted due to heavy rain, thus
increasing turbidity and suspended solids of the water.
|
|
|
|
MF
|
Turbidity
|
TCE-WQM1
|
Action
|
|
|
|
MF
|
Turbidity
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
|
|
|
MF
|
SS
|
TCE-WQM3A
|
Action
|
|
|
|
MF
|
Turbidity
|
TCE-WQM4
|
Action
|
|
|
|
|
|
|
|
|
|
4
|
16 Aug 2018
|
MF
|
SS
|
TCE-WQM1
|
Action
|
The exceedances
were not considered as caused by the construction of the Project due to the
following reasons:
Ÿ Areas of
reclamation related marine works undertaken under the Project were surrounded
by silt curtain, which was inspected daily by the Contractor and endorsed by
ER and observed to be in good condition and functioning well.
Ÿ The monitoring
station is located further away from the Project works area and no action /
limit level exceedances were recorded at the monitoring stations located
closer to the works area (e.g. TCE-WQM4) during the same monitoring event.
|
|
|
|
|
|
|
|
|
|
5
|
25 Aug 2018
|
MF
|
SS
|
TCE-WQM3A
|
Limit
|
The
exceedances were not considered as caused by the construction of the Project
due to the following reasons:
Ÿ Areas of
reclamation related marine works undertaken under the Project were surrounded
by silt curtain, which was inspected daily by the Contractor and endorsed by
ER and observed to be in good condition and functioning well.
Ÿ Sand blanket
laying was conducted at Tai Ho Wan, surrounded by a frame type silt curtain
and an outer silt curtain. Both
silt curtains were in good condition to isolate sediment plume during sand
blanket laying based on site investigation. No action or limit level exceedances
were recorded during the subsequent water quality monitoring conducted on 28
August 2018 when sand blanket laying was conducted.
|
|
|
|
|
|
|
|
|
|
6
|
30 Aug 2018
|
ME
|
SS
|
TCE-WQM1
|
Action
|
The
exceedances were not considered as caused by the construction of the Project
due to the following reasons:
Ÿ Areas of reclamation
related marine works undertaken under the Project were surrounded by silt
curtain, which was inspected daily by the Contractor and endorsed by ER and
observed to be in good condition and functioning well.
Ÿ Site
observations confirmed no silt plumes or observable issues during marine
works (pipe-piling and laying of geotextile and sand blanket laying).
|
|
|
|
ME
|
SS
|
TCE-WQM3A
|
Action
|
|
|
|
ME
|
SS
|
TCE-WQM4
|
Action
|
|
ME: Mid-ebb;
MF: Mid-flood
DO(B):
Bottom-depth DO; DO (S&M): Surface and middle-depth averaged DO
All Stations:
TCE-WQM1, TCE-WQM2a, TCE-WQM2b, TCE-WQM3A and TCE-WQM4
|
Based on the
preliminary investigation with the ER, the Contractor and the IEC, there is no evidence
showing the exceedances were related to the Project. Nevertheless,
the Contractor was reminded to implement all relevant mitigation measures for
the marine works, including regular checking of silt curtain integrity and
maintain good site practice. The ET
will keep on checking monitoring data, plant, equipment and Contractor¡¦s
working methods. The ET will also
conduct further investigation, including the review of water quality monitoring
data from adjacent projects, to substantiate the exceedances were not
considered as caused by the construction of the Project.
No impact soft shore ecological monitoring at Tung Chung Bay and Tai Ho
Wan was scheduled during the reporting period. The impact soft shore ecological monitoring
at Tung Chung Bay and Tai Ho Wan is scheduled to be conducted in September 2018
in accordance with the Updated EM&A Manual.
Site
inspections were carried
out on a weekly basis with the Contractor and ER to monitor the implementation
of proper environmental pollution control and mitigation measures for air
quality, noise, water quality, waste management, marine ecology and landscape
and visual impacts
under the Project. In the reporting
period, five (5) site inspections were carried out on 2, 9, 16, 24 and 30
August 2018.
Key
observations during
the site inspections are summarized in Table
2.12.
Table 2.12 Key Observations
Identified during the Site Inspection in this Reporting Month
|
Inspection
Date
|
Environmental
Observations
|
Recommendations/
Remarks
|
|
2
August 2018
|
Works Area near Ying Tung Estate
Ÿ General refuse
at site office
Ÿ Chemicals next
to site office
|
Works Area near Ying Tung Estate
Ÿ The contractor
was reminded to regularly clear debris;
Ÿ The contractor
was reminded to properly store chemicals with drip tray.
|
|
9
August 2018
|
Vessel (Leader GD2)
Ÿ Chemical
without drip tray
Works Area near Ying Tung Estate
Ÿ General refuse
Ÿ Debris and
chemicals without drip tray
|
Vessel (Leader GD2)
Ÿ The contractor
was reminded to provide drip tray for chemicals;
Works Area near Ying Tung Estate
Ÿ The contractor
was reminded to regularly clear debris and provide drip tray for chemicals
|
|
16
August 2018
|
Works Area near Ying Tung Estate
Ÿ Chemical next
to the generator without label
|
Works Area near Ying Tung Estate
Ÿ The contractor
was reminded to provide labels and drip trays for chemicals.
|
|
24 August 2018
|
Works Area near Ying Tung Estate
Ÿ Nil
Works Area near CenturyLink
Ÿ Debris
Vessel (Tat Fat No.11)
Ÿ Stagnant water
in the waste tires attached to the vessel
Ÿ Stagnant water
in the vessel
Ÿ Chemicals
without drip tray
|
Works Area near Ying Tung Estate
Ÿ Nil
Works Area near CenturyLink
Ÿ The contractor
was reminded to clear debris regularly.
Vessel (Tat Fat No.11)
Ÿ The contractor
was reminded to clear such water;
Ÿ The contractor
was reminded to remove such chemical or provide drip tray.
|
|
30
August 2018
|
Works Area near Ying Tung Estate
Ÿ Nil
Works Area near CenturyLink
Ÿ Chemicals
without drip tray
Ÿ Diesel drum
without drip tray
Vessel (Kong Wai 28)
Ÿ Suspected
chemical leakage
|
Works Area near Ying Tung Estate
Ÿ Nil
Works Area near CenturyLink
Ÿ The contractor
was reminded to provide drip tray for chemicals
Vessel (Kong Wai 28)
Ÿ The contractor
was reminded to clear such leakage.
|
The Contractor has rectified all of the observations identified during
environmental site inspections in the reporting period.
The Contractor has registered as chemical waste producer under the
Contract. Sufficient numbers of
receptacles were available for general refuse collection and sorting.
All dump trucks engaged on site was equipped with GPS during the
reporting period. The Surveillance
Team of the ET conducted regular inspection on the engaged dump trucks and
illegal dumping and landfilling of C&D materials were not recorded during
the reporting period.
As informed by the Contractor, wastes generated during this reporting
period include mainly imported fill, non-inert construction wastes and
recyclable materials. Reference has
been made to the waste flow table prepared by the Contractor. The quantities of different types of
wastes are summarised in Table 2.13.
Table 2.13 Quantities of
Different Waste Generated
|
Month/
Year
|
Inert C&D Materials (a)
(m3)
|
Imported Fill (m3)
|
Inert Construction Waste Re-used
(m3)
|
Non-inert Construction Waste (b)
(m3)
|
Recyclable Materials (c) (kg)
|
Chemical Wastes (kg)
|
|
|
|
9 to 31 Jul 18
|
0
|
6,665
(d)
|
0
|
20.7
|
0
|
0
|
|
|
1 to 31 Aug 18
|
0
|
20,036
|
0
|
110.1
|
96,740
(e)
|
0
|
|
|
Notes:
(a) Inert construction wastes
include hard rock and large broken concrete, and materials disposed as public
fill.
(b) Non-inert construction wastes
include general refuse disposed at landfill.
(c) Recyclable materials include
metals, paper, cardboard, plastics, timber, felled trees and others.
(d) Updated figure is presented.
(e) Metals were recycled in the
reporting period.
|
|
2.7
Implementation Status of Environmental Mitigation
Measures
A summary of the Environmental Mitigation Implementation Schedule is
presented in Annex C.
The necessary mitigation measures were implemented properly for the
Project.
Results for 1-hour TSP complied with the Action/ Limit levels in the
reporting period. Three (3) Action
level exceedances for construction noise was recorded from three (3)
environmental complaints related to noise nuisance. No Project-related Action/ Limit level
exceedances were recorded for water quality after preliminary
investigation.
Cumulative statistics on exceedances is provided in Annex H.
There was no notification of summons or successful prosecution recorded
in the reporting period.
Three (3) environmental complaints related to noise nuisances were
received on 13, 21 and 24 August 2018 during the reporting period. One of the complaints was related to
construction activities on Sunday while the other two complaints were related
to construction activities near to the adjacent residential areas. Investigations were conducted for each
of the environmental complaints in accordance with the complaint handling
process as stated in the Complaint Management Plan. Based on the information provided by the
Contractor, supplemented by the regular and ad-hoc noise monitoring conducted
around the Project area, it is considered that the Contractor had complied with
the relevant statutory requirements for the construction works, including the
EP and the Construction Noise Permit.
Nevertheless, the Contractor was reminded to reduce construction noise
levels, as far as practicable, especially when working next to the residential
areas around the Project. For
example, walkie-talkie would be used instead of loud speaker for communication
near residential areas. The valid
construction noise permits shall also be displayed at the relevant construction
areas for public information. The
ET will continue to check the implementation status of the mitigation measures
and conduct noise monitoring as per EM&A requirements.
Statistics on complaints, notifications of summons, successful
prosecutions are summarised in Annex H.
3
Future Key Issues
As informed by the Contractor, the major works for the Project in
September 2018 will be:
Land-based Works:
Ÿ
Construction
of site office near Ying Tung Estate;
Ÿ
Demolition
of site office near Century Link;
Ÿ
Removal
of rock armour above +2.5mPD; and
Ÿ
Re-provision
existing Pak Mong Pier.
Marine-based Works:
Ÿ Installation of pipe piles and sheetpiles for ground
investigation and wave protection measures;
Ÿ Removal of rock armour below +2.5mPD;
Ÿ Installation of silt curtain near Tai Ho Wan;
Ÿ Laying of geotextile and sand blanket and ground
improvement works for reclamation works and Deep Cement Mixing (DCM) trial
embankment ;
Ÿ Marine filling works;
Ÿ Diversion of existing box culvert; and
Ÿ Marine ground investigation works.
3.2
Key Issues for the Coming
Month
Potential environmental impacts arising from the above upcoming
construction activities in the next reporting period of September 2018 are
mainly associated with dust emission from site office construction, noise from
barge and plant operation during normal working hours and restricted hours,
elevation in SS due to sediment loss from sand blanket laying and marine
filling works, disturbance to Chinese White Dolphin (CWD) during marine works,
and waste management for C&D materials. The ET will keep track on the
construction works to confirm compliance of environmental requirements and the
proper implementation of all necessary mitigation measures.
The tentative schedules for environmental monitoring in September
2018
are provided in Annex I.
4
Conclusion and Recommendation
This EM&A Report presents the findings of the
EM&A activities undertaken during the period from 1 to 31 August 2018 in
accordance with the Updated EM&A Manual and the requirements of the Environmental Permit (EP-519/2016).
Air quality (1-hour TSP), noise and water quality (DO,
turbidity and SS) monitoring were carried out in the reporting period. Results for air quality complied with
the Action and Limit levels in the reporting period. Three (3) Action level exceedances for
construction noise was recorded from three (3) environmental complaints related
to noise nuisances in the reporting period. No Project-related Action/ Limit level
exceedances were recorded for water quality after preliminary investigation.
Environmental site inspection was carried out during the reporting
period. Recommendations on remedial
actions were given to the Contractor for the deficiencies identified during the
site inspection.
There was no notification of summons or successful prosecution recorded
in the reporting period. Three (3)
environmental complaints related to noise nuisances were received on 13, 21 and
24 August 2018 during the reporting period. Investigations were conducted for each
of the environmental complaints in accordance with the complaint handling
process as stated in the Complaint Management Plan.
The ET will keep track on the construction works to confirm compliance
of environmental requirements and the proper implementation of all necessary
mitigation measures.
