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
2019 for the Project in accordance with the Updated EM&A Manual.
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 13
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, audit of implementation of Dolphin Watching Plan, Works Vessel
Travel Route Plan, Silt Curtain Deployment Plan, Spill Response Plan and Waste
Management Plan were conducted in the reporting period. Based on the
audit results and the observation for the reporting period, environmental
pollution control and mitigation measures for the Project were properly
implemented.
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, two (2) Action Level were triggered from two (2) environmental
complaints related to noise nuisance in the reporting period.
Investigations were conducted for the exceedances in accordance with the Event
and Action Plan.
Breaches of Action and Limit Levels for
Water Quality
Dissolved Oxygen (DO) and Suspended
Solids (SS) exceedances were recorded during the reporting period.
Relevant investigations and follow-up actions were conducted according to the
EM&A programme. The exceedances were considered not related to this
Project after investigations.
Soft Shore Ecological Monitoring
No impact soft shore ecological
monitoring at Tung Chung Bay and Tai Ho Wan was scheduled during the reporting
period.
Environmental Complaints, Non-compliance
& Summons
There was no notification of summons or
prosecution recorded in the reporting period.
Two (2) environmental
complaints related to noise nuisance from barges and noise along with dark
smoke from sand barges and tug boats were received during the reporting
period. Investigations were conducted for the environmental complaints in
accordance with the
complaint handling process as stated in the Complaint Management Plan.
Reporting Change
There was no
reporting change in the reporting period.
Key Issues For The Coming Month
Potential environmental
impacts arising from the upcoming construction activities in the next reporting
period of September 2019 are mainly associated with 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, handling and storage of
C&D materials generated from construction activities, efficiency of wastewater and drainage
management, efficiency of flood management for rainy season and dust
emission. 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 ET will also recommend to the
Contractor about the environmental toolbox topics on the abovementioned key
issues for the coming month.
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 2019 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
|
Lo
Siu Keung
|
2231
4426
|
|
Marine
Conservation Officer
|
Wo
King Tai
|
3894
9707
|
|
Engineer’s
Representative
(ER)
(AECOM
Asia Company Limited)
|
Principal
Resident Engineer
Chief
Resident Engineer
|
Frankie
Fan
Dennis
Leung
|
3894
9403
3894
9404
|
|
Senior
Resident Engineer
|
Chris
Cheung
|
3894
9605
|
|
Resident
Engineer
|
Vincent
Leung
|
3894
9645
|
|
Senior
Inspector of Works
|
C
K Liu
|
3894
9733
|
|
Environmental
Team (ET)
(ERM-Hong
Kong, Limited)
|
ET
Leader
|
Jovy
Tam
|
3894
9507
|
|
Deputy
ET Leader
|
Raymond
Chow
|
3894
9504
|
|
Independent Environmental Checker (IEC)
(Black & Veatch Hong Kong Limited)
|
IEC
|
Manuel
Chua
|
3894 9501
|
|
Deputy
IEC
|
Ivan
Ting
|
3894 9502
|
|
Contractor
(Contract No. NL/2017/03 TCNTE – Reclamation and Advance Works)
(Build
King – SCT Joint Venture)
|
Site
Agent
|
Keith
Tse
|
9383
6173
|
|
Construction
Team Leader
|
Lee
Wai Man
|
9481
6024
|
|
Environmental
Officer
|
Edward
Tam
|
9287
8270
|
|
24-hour
Complaint Hotline
|
-
|
9862
2910
|
As informed by the Contractor, details
of the major works carried out in this reporting period are listed below:
Table 1.2 Major
Activities in the Reporting Period
|
Activities
|
Key Issues
|
Key Mitigation Measures
|
|
Land-based Works
|
|
|
|
·
Roads,
drainage, sewerage works and backfilling works at Area 58 (near Man
Tung Road)
·
Land-based
ground investigation works
·
Land
DCM works
·
Placing
of sorted public fill
|
·
Dust
emission
·
Handling
and storage of C&D materials generated from construction activities
·
Noise
from plant operation
·
Emission
of dark smoke from PMEs
·
Efficiency of
wastewater and drainage management
·
Efficiency of
flood management for rainy season
|
·
Good
site practices
·
Regular
water spraying on stockpiles, unpaved haul road and land filling area
·
Sorting
and reuse of C&D materials as far as practicable
·
Use
of QPME and noise
barrier/acoustic mat
·
Regular
maintenance of PMEs
·
Implementation of
wastewater and drainage management
|
|
Marine-based Works
|
|
|
|
·
Laying
of sand blanket for reclamation works and DCM works
·
Placing
of sorted public fill
·
DCM
works
·
Marine
ground investigation works
|
·
Elevation
in impact on Water Quality due to sediment loss from sand blanket laying and
marine filling works
·
Potential surface
runoff
·
Potential
filling material drop from barges
·
Disturbance
to Chinese White Dolphin
·
Noise
from marine vessels and plant operation during normal working hours or
restricted hours
·
Dust
emission during storage and transfer of sand/ sorted public fill
·
Emission
of dark smoke from marine vessel
|
·
Provision
of perimeter silt curtain
·
Provision
of a leading seawall of at least 200m before marine filling works
·
Regular cleaning
of accumulated sand/fill materials at the edge of the barges
·
Implementation
of Dolphin Watching for the marine-based works
·
Strictly
follow requirement under CNP for the use of PMEs and works within restricted
period
·
Use
of acoustic mat and other noise mitigation measures when necessary
·
Regular
water spraying and provide tarpaulin sheets coverage on stockpiles
·
Regular
maintenance of engines and mechanical equipment
|
The
environmental mitigation implementation schedule is presented in Annex B.
The status for all environmental aspects
are presented in Table 1.3. The EM&A requirements remained
unchanged during the reporting period.
Table 1.3 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 before operation of TCNTE
|
|
|
|
|
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
|
On-going
for TCE, monitoring conducted quarterly
|
|
|
|
|
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) environmental management committee meeting was held with the Contractor,
ER, ET, IEC and CEDD on 22 August 2019; and
Ÿ
Environmental
toolbox trainings on Marine Travel Route Plan, dolphin watching, chemical waste
management, dust prevention, mitigation measures on filling material drop,
chemical spillage procedures, light pollution control and dark smoke control
were held on 7, 14, 16, 19, 21, 23, 28 and 30 August 2019.
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 Annex C.
1.7
Status of Other Statutory
Environmental Requirements
The environmental licenses and permits,
including environmental permit, waste discharge license, registration as
chemical waste producer and construction noise permit, which were 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 – Ying Tung Estate
|
1-hour
TSP
|
Three
times per six days during the construction period of the Project
|
5,
10, 15, 21 and 27 August 2019
|
1-hour
TSP Dust Meter
SIBATA
LD-3B (S/N: 235780
|
|
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
|
38
|
18-57
|
279
|
500
|
The major dust sources in the reporting
period included haul road traffic, unloading of sand/fill material, filling
works and operation of marine vessels under the Project as well as nearby
traffic emissions.
No exceedance of Action and Limit Levels
was recorded for construction air quality monitoring 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 stations NMS-CA-1A ()
()
and 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 (a)
|
Location
|
Parameter
|
Frequency and Duration
|
Monitoring Dates
|
Equipment
|
|
NMS-CA-1A (b)
|
Residential
premise in Tung Chung East – Century Link/Ying Hong Road (c)
|
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
|
5, 10, 15, 21 and 27 August 2019
|
Sound Level Meter: Rion NL-52 (S/N:
00643049)
Acoustic Calibrator: LARSON DAVIS
CAL200 (S/N: 11333)
|
|
NMS-CA-4
|
Residential
premise in the reclamation area next to Tung Chung East – Ying Tung Estate
|
|
|
Remarks:
(a) 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 Station NMS-CA-1) and operation of schools (for Monitoring Stations NMS-CA-2
and NMS-CA-3).
(b) Impact
monitoring at monitoring station NMS-CA-1A commenced on 19 September 2018 in
view of the close vicinity of the construction works near the residential
area at Century Link.
(c) Due to land handover
issue, NMS-CA-1A was relocated to Ying Hong Road which is located 60m away
from the original location. Proposal on the relocation of NMS-CA-1A was
approved by IEC on 23 November 2018. Noise monitoring at the relocated
location commenced since 24 November 2018.
|
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-1A
|
64.2
|
62.8-65.8
|
75
|
|
NMS-CA-4
|
65.9
|
65.2-66.7
|
75
|
Major noise sources during the noise
monitoring included noise from barge and plant operation, DCM works, craning,
haul road traffic and nearby traffic noise and aircraft noise.
No Limit Level exceedance was recorded
for construction noise monitoring in the reporting period. However, two
(2) Action Level were triggered from two (2) environmental complaints related
to noise nuisance received in the reporting period. Investigations were
conducted for the complaints in accordance with the Event and Action Plan (Annex F4) and the details
are provided in Section 2.9.
2.3
Water Quality Monitoring
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 (a)
|
Frequency
|
Monitoring Dates
|
Depth
|
|
|
|
Easting
|
Northing
|
|
|
|
|
TCE-WQM1
|
Near Airport Channel
|
811838
|
817341
|
Ÿ
Dissolved
Oxygen
(DO)
(mg/L and % saturation)
Ÿ
Temperature (°C)
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
|
2,
5, 7, 9, 12, 14, 16, 19, 21, 23, 26, 28 and 30 August 2019
|
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
|
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:
(a) 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.
|
|
|
|
|
|
|
|
|
|
|
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: 15M100005;
S/N: 17H105557; S/N: 18A104824)
YSI
6920 v2 (S/N: 0001C6A7; S/N: 00019CB2)
|
|
Note
1: One multi-parameter water quality system was 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 13 monitoring events for
impact water quality monitoring were conducted at all designated monitoring
stations during the reporting period. Impact water quality monitoring
results and graphical presentations are provided in Annex G3.
Action and
limit level exceedances were recorded for water quality impact monitoring in
the reporting period and the event and action plan (Annex
G4) was
undertaken. 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
|
Date
|
Tide
|
Parameter
|
Station
|
Type
|
Justification
|
|
2
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM3A
|
Action
|
(d)
(f)
|
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
(a)
(c) (e)
|
|
5
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
MF
|
SS
|
TCE-WQM1
|
Action
|
(a)
(c) (e)
|
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
|
MF
|
SS
|
TCE-WQM4
|
Action
|
|
7 August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
9
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
(a)
(d)
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
SS
|
TCE-WQM4
|
Action
|
(b)
(c)
|
|
12
August 2019
|
MF
|
SS
|
TCE-WQM2a
|
Limit
|
(a)
(b) (e)
|
|
MF
|
SS
|
TCE-WQM3A
|
Limit
|
|
14
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
(a)
(d) (f)
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
16
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
ME
|
SS
|
TCE-WQM3A
|
Action
|
(c)
(e)
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
19 August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
ME
|
SS
|
TCE-WQM1
|
Action
|
(a)
(c) (e)
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
MF
|
SS
|
TCE-WQM2b
|
Action
|
(a)
(c) (e)
|
|
21
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
23
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
(d)
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
26 August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(a)
(d)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(a)
(d) (e)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
28
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
30
August 2019
|
ME
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
ME
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
ME
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
ME
|
SS
|
TCE-WQM2b
|
Action
|
(a)
(b) (c)
|
|
MF
|
DO
(S&M)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(S&M)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(S&M)
|
TCE-WQM4
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM1
|
Action
|
(d)
(f)
|
|
MF
|
DO
(B)
|
TCE-WQM2a
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM2b
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM3A
|
Action
|
|
MF
|
DO
(B)
|
TCE-WQM4
|
Action
|
|
MF
|
SS
|
TCE-WQM4
|
Action
|
(a)
(b) (c)
|
|
Remarks:
|
|
(a)
|
The exceedance was
not considered
as caused by the construction of the Project due to the monitoring
stations are located upstream/further away from the Project works area.
|
|
(b)
|
The exceedance was
not considered
as caused by the construction of the Project due to areas of reclamation
related marine works undertaken under the Project were surrounded by silt
curtain which were inspected daily by the Contractor and inspected periodically
by ER. The silt curtain nearby the water quality monitoring stations
was observed to be in good condition/well-functioning.
|
|
(c)
|
The exceedance was
not considered
as caused by the construction of the Project due to no
sediment plume was observed nearby the water quality monitoring station
during the sampling in mid-ebb/mid-flood tide.
|
|
(d)
|
The exceedance was
not considered as caused by the construction of the Project due to the
monitoring result was similar to the corresponding upstream/control
station(s).
|
|
(e)
|
The exceedance was
not considered as caused by the construction of the Project due to no marine
construction activity under the Project was conducted near the water quality
monitoring station.
|
|
(f)
|
The exceedance was
not considered as caused by the construction of the Project due to the
corresponding upstream/control station(s) already exceeded the Action Level
during the same tide.
|
Based on the investigations conducted for each of the monitoring
day with exceedances, the exceedances of DO are likely caused by seasonal
fluctuation and the exceedances of SS are not likely caused by the work
activities related to the Project.
In addition, low levels
of DO were recorded during previous summer period. This further suggested
that exceedances of DO are
likely caused by seasonal fluctuation and a similar trend of lower levels of DO
would likely occur again during summer period.
Nevertheless, the Contractor was
reminded to implement all relevant mitigation measures for the marine works,
including regular checking of silt curtain integrity, provide periodic
maintenance and maintain good site practice. The ET will keep on checking
monitoring data, plant, equipment and Contractor’s working methods.
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 2019 in
accordance with the Updated EM&A Manual.
2.5
EM&A Site Inspection
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 1, 7, 15,
22 and 29 August 2019.
Key observations during the site inspections are summarized
in Table 2.11.
Table 2.11 Key
Observations Identified during the Site Inspection in this Reporting Month
|
Inspection Date
|
Environmental Observations
|
Recommendations/ Remarks
|
|
1 August 2019
|
Tung
Chung East Reclamation Area
Ÿ
Defect was
observed on the silt curtain.
|
Tung
Chung East Reclamation Area
Ÿ
The Contractor was
reminded to review the condition of the silt curtain, in particular after typhoon
event.
|
|
7 August 2019
|
DCM
barge (ESC-51)
Ÿ
Chemicals were
placed without drip tray.
Ÿ
Chemical waste
container was not properly locked.
|
DCM
barge (ESC-51)
Ÿ
The Contractor was
reminded to place chemicals in the drip tray.
Ÿ
The Contractor was
reminded to lock the chemical waste container.
|
|
15 August 2019
|
WA1
Ÿ
Dust was observed
emitted from the silo.
Ÿ
Drip tray was not
plugged.
Portion
VIII
Ÿ
Tarpaulin sheet
was missing during material transfer.
Ÿ
Oil stain was
observed nearby the excavator.
Tug
boat (Leader T3)
Ÿ
Black smoke was
observed from a tug boat.
|
WA1
Ÿ
The Contractor was
reminded to review the transfer procedures of the dusty materials.
Ÿ
The Contractor was
reminded to plug the drip tray.
Portion
VIII
Ÿ
The Contractor was
reminded to provide tarpaulin sheet during material transfer to avoid
material dumping at sea.
Ÿ
The Contractor was
reminded to clear the oil stain.
Tug
boat (Leader T3)
Ÿ
The Contractor was
reminded to provide maintenance on the machine/engine.
|
|
22 August 2019
|
Portion
VIII
Ÿ
Dust was observed
during stockpile transfer.
|
Portion
VIII
Ÿ
The Contractor was
reminded to review the transfer procedures of the dusty materials and provide
watering.
|
|
29 August 2019
|
Tung
Chung East Reclamation Area
Ÿ
Several gaps on
silt curtain were observed and the overall silt curtain was in poor condition
with some defects being outstanding/ repeating on certain area of the
location.
|
Tung
Chung East Reclamation Area
Ÿ
The Contractor was
urged to close the gaps on silt curtain, review of the current inspection
system and provide sufficient support on maintenance.
|
The Contractor has rectified all of the
observations identified during environmental site inspections in the reporting
period.
The Contractor was reminded to implement all relevant
mitigation measures outlined in the EIA Report and EM&A Manual.
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 RTTM system during the reporting period. The Surveillance
Team of the ET conducted regular site inspection on the dump trucks and their
track records. No illegal dumping and landfilling of C&D materials
was found during the reporting period.
Wastes generated during this reporting
period include mainly non-inert construction wastes, chemical waste and
recyclable materials. The Project imports fill materials including mainly
sand and public fill. Reference has been made to the waste flow table
prepared by the Contractor. The quantities of different types of wastes
and imported fill materials are summarised in Table 2.12.
Table 2.12 Quantities of Different Waste
Generated and Imported Fill Materials
|
Month/
Year
|
Inert C&D Materials (a)
(m3)
|
Imported Fill (d) (e) (sand)
(m3)
|
Imported Fill (d) (public
fill) (m3)
|
Inert Construction Waste
Re-used
(m3)
|
Non-inert Construction Waste
(b) (m3)
|
Recyclable Materials (c)
(kg)
|
Chemical Wastes (kg)
|
|
|
|
1
to 30 Jun 19
|
0
|
88,073
|
45,364
|
437
|
65.0
|
3
|
1,600
|
|
1
to 31 Jul 19
|
0
|
77,908
|
173,288 (f)
|
282 (f)
|
55.0
|
70
|
0
|
|
1
to 31 Aug 19
|
0
|
81,922
|
266,660
|
379
|
42.0
|
70
|
1,600
|
|
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 and others.
(d)
Imported fill materials include sand and public fill.
(e)
No glass cullet was imported in the reporting period.
(f)
Updated figure is presented.
|
|
2.7
Implementation Status of
Environmental Mitigation Measures
A summary of the Environmental
Mitigation Implementation Schedule is presented in Annex B. The necessary
mitigation measures were implemented properly for the Project.
The monitoring results for air quality
monitoring (1-hour TSP) and construction noise monitoring complied with the
Action/ Limit levels in the reporting period. No Project-related Action/
Limit level exceedances were recorded for water quality after investigations.
Cumulative statistics on exceedances is
provided in Annex H.
There was no
notification of summons or prosecution recorded in the reporting period.
Two
(2) environmental complaints were received in the reporting period.
Investigations were conducted for the environmental complaints in accordance
with the complaint handling process as stated in the Complaint Management
Plan. Environmental complaints in the reporting period are summarized
below.
|
|
Complaint(s)
|
Investigation/Follow up action(s)
|
|
|
|
|
|
1
|
Environmental
complaint related to noise
issue from barges was
received on 21 August 2019.
|
Based
on the information provided by the ER and the Contractor, supplemented
results of noise measurement and ad-hoc site inspections, there was no
non-compliance observed.
Nevertheless, the Contractor was reminded to further review the
work sequence of work vessels to avoid concurrent commencement time for DCM
barges that were located near the residential area and avoid multiple vessels
anchoring at the pier concurrently. In addition, the Contractor was
also reminded to implement noise mitigation measures outlined in the EIA
Report and EM&A Manual (e.g. use of QPME and use of noise barrier).
|
|
2
|
Environmental
complaint related to noise
along with dark smoke from sand barges and tug boats was received on 28 August 2019.
|
Based
on the information provided by the ER and the Contractor, supplemented
results of noise measurement, air quality monitoring and ad-hoc site
inspection, no indication of dust generation of particular concern and noisy
construction activities was noticed. Nevertheless, the
Contractor was reminded to arrange vessels to anchor further away from
residential area. The Contractor was also reminded to suspend any vessels
that were identified of dark smoke emission and provide maintenance to the
vessels. In addition, the Contractor was reminded to implement noise
mitigation measures outlined in the EIA Report and EM&A Manual (e.g. use
of QPME and use of noise barrier).
|
|
|
|
|
Statistics on complaints, notifications
of summons, successful prosecutions are summarised in Annex
H.
3
Future Key
Issues
Works to be undertaken in
the next monitoring period of September 2019 are summarized in Table 3.1
below, together with the key issues and the key mitigation measures:
Table 3.1 Major
Activities for the Next Reporting Period
|
Activities
|
Key Issues
|
Key Mitigation Measures
|
|
Land-based Works
|
|
|
|
·
Roads,
drainage, sewerage works and backfilling works at Area 58 (near Man
Tung Road)
·
Land-based
ground investigation works
·
Installation
of prefabricated vertical drain
·
Land
DCM works
·
Placing
of sorted public fill
|
·
Dust
emission
·
Handling
and storage of C&D materials generated from construction activities
·
Noise
from plant operation
·
Emission
of dark smoke from PMEs
·
Efficiency of
wastewater and drainage management
·
Efficiency of
flood management for rainy season
|
·
Good
site practices
·
Regular
water spraying on stockpiles, unpaved haul road and land filling area
·
Sorting
and reuse of C&D materials as far as practicable
·
Use
of QPME and noise
barrier/acoustic mat
·
Regular
maintenance of PMEs
·
Implementation of
wastewater and drainage management
|
|
Marine-based Works
|
|
|
|
·
Laying
of geotextile and sand blanket for reclamation works and DCM works
·
Placing
of sorted public fill
·
DCM
works
·
Marine
ground investigation works
·
Installation of prefabricated vertical drain
|
·
Elevation
in impact on Water Quality due to sediment loss from sand blanket laying and
marine filling works
·
Potential surface
runoff
·
Potential
filling material drop from barges
·
Disturbance
to Chinese White Dolphin
·
Noise
from marine vessels and plant operation during normal working hours or
restricted hours
·
Dust
emission during storage and transfer of sand/ sorted public fill
·
Emission
of dark smoke from marine vessel
|
·
Provision
of perimeter silt curtain
·
Provision
of a leading seawall of at least 200m before marine filling works
·
Regular cleaning
of accumulated sand/fill materials at the edge of the barges
·
Implementation
of Dolphin Watching for the marine-based works
·
Strictly
follow requirement under CNP for the use of PMEs and works within restricted
period
·
Use
of acoustic mat and other noise mitigation measures when necessary
·
Regular
water spraying and provide tarpaulin sheets coverage on stockpiles
·
Regular
maintenance of engines and mechanical equipment
|
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 ET will
also recommend to the Contractor about the environmental toolbox topics on the
abovementioned key issues for the next reporting period.
The tentative schedules for
environmental monitoring in September
2019 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 2019 in accordance with the Updated EM&A Manual and the
requirements of the Environmental Permit (EP-519/2016).
Impact monitoring of air
quality (1-hour TSP), noise and water quality (DO, turbidity and SS) were
carried out in the reporting period.
The
monitoring results for air quality monitoring (1-hour TSP) complied with the
Action/ Limit levels in the reporting.
Two (2) Action level exceedances for construction noise monitoring was recorded
from two (2) environmental complaints related to noise nuisance. The
monitoring results for construction noise monitoring complied with the Limit
levels in the reporting period. No
Project-related Action/ Limit level exceedances were recorded for water quality
after investigations.
Environmental site
inspections were carried out during the reporting period. Recommendations
on remedial actions were given to the Contractor for the deficiencies
identified during the site inspections.
There was no notification of summons or
prosecution recorded in the reporting period. Two (2) environmental
complaints related to noise
nuisance from barges and noise along with dark smoke from sand barges and tug
boats were received during the reporting period. Investigations were conducted for 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.
