EXECUTIVE SUMMARY
I.
Introduction
This
is the 10th Monthly EM&A Report prepared by Fugro Technical
Services Limited for the Contract no. HY/2018/08 Central Kowloon Route ¡V
Central Tunnel. The Contract no. HY/2018/08 commenced on 19 September 2019.
This report summarized the monitoring results and audits findings of the
EM&A programme under the issued EP (EP No.: EP-457/2013/C) and in
accordance with the EM&A Manual during the reporting period from 01/06/2020
to 30/06/2020.
II.
Summary
of Main Works Undertaken and Key Measures Implemented
The main construction
works carried out in the reporting period were as follow:
¡P
Drill
and Blast excavation;
¡P
Mucking
out from tunnel;
¡P
Construction
of spoil basin;
¡P
Construction
of noise enclosure;
¡P
Installation
of gantry crane;
¡P
Site
installation;
¡P
Ground
investigation works;
¡P
Extensive
grouting.
III.
Summary
of Exceedances, Investigation and Follow-up
No
Action and Limit Level exceedance was recorded for construction dust monitoring
in the reporting month.
One
(1) Action Level exceedance was recorded for construction noise due to the
noise-related complaints. No Limit Level exceedance was recorded for
construction noise monitoring in the reporting month.
IV.
Complaint
Handling, Prosecution and Public Engagement.
One (1) noise-related and one
(1) landscape and visual related complaints were received in the reporting
month. The complaint cases in June 2020 are summarized in Table I.
Table I Environmental
Complaints Log
Complaint Log No. |
Date of Complaint |
Received From |
Nature of Complaint |
Status |
EC017_CKRCT20200622_059 |
22nd June 2020 |
1823 |
Construction Noise |
Investigation report was finalized on 2 July 2020. |
EC018_CKRCT20200627_061 |
27th June 2020 |
Contract Complaint Hotline |
Landscape and Visual |
Investigation report was finalized on 8 July 2020. |
No notification of
summons and prosecutions were received in the reporting period.
No public engagement
activities were conducted in the reporting period.
V.
Reporting
Change
There were no
reporting changes during the reporting month.
VI.
Future
Key Issues
The main works will be
anticipated in the next reporting period are as follow:
¡P
Drill
and Blast excavation;
¡P
Mucking
out from tunnel;
¡P
Construction
of spoil basin;
¡P
Construction
of noise enclosure;
¡P
Installation
of gantry crane;
¡P
Site
installation;
¡P
Ground
investigation works;
¡P
Extensive
grouting.
The
recommended mitigation measures corresponding to the main works in the next
reporting period are listed as follow:
¡P
Mitigation
measures in form of regular watering under a good site practice should be
adopted, particularly for the earthwork and breaking activities;
¡P
Any
excavated, stockpile of dusty material or load of dusty materials on a vehicle
leaving a construction site should be covered entirely by impervious sheeting;
¡P
All
construction plants / machineries should be checked / serviced on a regular
basis during the courses of construction to minimize the emission of noise
generation and eliminate dark smoke emission;
¡P
All
C&D materials generated should be transported and stored at temporary
storage area. Suitable materials should be sorted for reuse on-site;
¡P
Every
vehicle shall be cleaned thorough at the designated wheel washing area onsite;
¡P
Wastewater
generated from drilling shall be properly collected for reuse or treated by
wastewater treatment facilities before discharge;
¡P
Provision
of drip trays for equipment likely cause spillage of chemical / fuel, and
provide routine maintenance;
¡P
Erecting
temporary noise barrier for noisy Powered Mechanical Equipment (PME) and
deployment of Quality Powered Mechanical Equipment (QPME) as many as
practicable;
¡P
Conditions
in the Environmental Permit and License should be followed;
¡P
All
recommended mitigation measures specified in the approved EIA Report and
EM&A Manual shall be implemented.
The
following EP submissions (EP-457/2013/C) were submitted during the reporting
month:
Table II Status
of Required Submission under Environmental Permit
EP Condition |
Submission |
Submission
Date |
3.4 |
Monthly EM&A Report (May 2020) |
12 June 2020 |
Contents
1.3 Construction Programme and Activities
1.4 Works undertaken during the month
1.5 Status of Environmental Licences, Notification and
Permits
2.1 Construction Dust and Noise Monitoring Location
2.2 Construction Dust Monitoring
2.3 Construction Noise Monitoring
2.4 Construction Dust and Noise Monitoring Schedule
2.5 The Action and Limit Levels
3.1 Construction Dust Monitoring
3.2 Construction Noise Monitoring
5.1 Complaint Handling, Prosecution and Public
Engagement
5.2 Summary of Environmental Non-Compliance
5.3 Summary of Monitoring Exceedance
Tables
Table I ¡V Environmental Complaints Log
Table II
¡V Status of Required Submission under Environmental Permit
Table 1.1
¡V Contact Information of Key Personnel
Table 1.2
¡V Environmental Licenses, Notification and Permits Summary
Table 2.1
¡V Construction Dust and Noise Monitoring Location
Table 2.2
¡V Construction Dust Monitoring Equipment
Table 2.3
¡V Construction Noise Monitoring Parameters, Frequency and Duration
Table 2.4
¡V Construction Noise Monitoring Equipment
Table 3.1
¡V Summary of 1-hour TSP Monitoring Results in the Reporting Period
Table 3.2
¡V Summary of 24-hour TSP Monitoring Results in the Reporting Period
Table 3.3
¡V Summary of Construction Noise Monitoring Results in the Reporting Period
Table 4.1
¡V Observations and Recommendation of Site Inspection in the Reporting Period
Table 5.1
¡V Environmental Complaints Log
Table 6.1
¡V Status of Required Submission under Environmental Permit
Figures
Figure 1 The Site Layout Plan of the
Contract
Figure 2 The Location of the Construction
Dust and Noise Monitoring Station
Appendices
Appendix A Construction Programme
Appendix
B Project Organization Chart
Appendix
C Calibration Certificate for
Construction Dust Monitoring Equipment
Appendix
D Calibration Certificate for Construction
Noise Monitoring Equipment
Appendix
E Environmental Monitoring Schedule
Appendix
F Action and Limit Levels for
Construction Dust and Noise Monitoring
Appendix
G Construction Dust Monitoring Results and
Meteorological Observations
Appendix
H Construction Noise Monitoring Results
Appendix
I Event and Action Plan
Appendix
J Implementation Status of Environment
Mitigation Measures (Construction Phase)
1.1.2
The Central Kowloon
Route ¡V Design and Construction Environmental Impact Assessment Report
(Register No.: AEIAR-171/2013) was approved with conditions by the
Environmental Protection Department (EPD) on 11 July 2013. An Environmental
Permit (EP-457/2013) was issued on 9 August 2013. Variations of EP (VEP) was
subsequently applied for and the latest EP (EP-457/2013/C) was issued by EPD on
16 January 2017.
1.1.3
Contract no. HY/2018/08
Central Kowloon Route ¡V Central Tunnel (hereinafter referred to as ¡§the
Contract¡¨), is one of the contracts of CKR which included the construction of
the central tunnel, cut-and-cover tunnels at Yau Ma Tei and Ma Tau Kok and
construction of piles and diaphragm walls for Ho Man Tin ventilation building.
1.1.4
Fugro Technical
Services Limited (FTS) was appointed by Bouygues Travaux Publics (BTP) as the
Environmental Team (ET) under the Contract no. HY/2018/08) to execute the
environmental monitoring and audit (EM&A) programme under the issued EP (EP
No.: EP-457/2013/C) and in accordance with the EM&A Manual.
1.1.5
This is the 10th
Monthly EM&A Report prepared by FTS for the Contract no. HY/2018/08 Central
Kowloon Route ¡V Central Tunnel. The Contract no. HY/2018/08 commenced on 19
September 2019. This report summarized the monitoring results and audits
findings of the EM&A programme under the issued EP (EP No.: EP-457/2013/C)
and in accordance with the EM&A Manual during the reporting period from
01/06/2020 to 30/06/2020.
Table 1.1 Contact
Information of Key Personnel
Party |
Position |
Name |
Telephone |
Highways Department (HyD) |
E13/CKR |
Mr. Joe Lam |
2762 3380 |
Arup-Mott MacDonald Joint Venture (AMMJV) |
Senior Resident Engineer |
Mr. Ben Poon |
3619 5967 |
ERM-Hong Kong, Limited (ERM) |
Independent Environmental
Checker (IEC) |
Ms. Mandy To |
2271 3000 |
Bouygues Travaux Publics (BTP) |
Environmental Manager |
Mr. Simon Wong |
9281 4346 |
Fugro Technical Services Limited |
ET Leader |
Mr. David Hung |
3565 4371 |
1.3
Construction Programme and Activities
1.3.2
The construction programme
of this Contract is shown in Appendix A.
1.4
Works undertaken during the month
¡P
Drill
and Blast excavation;
¡P
Mucking
out from tunnel;
¡P
Construction
of spoil basin;
¡P
Construction
of noise enclosure;
¡P
Installation
of gantry crane;
¡P
Site
installation;
¡P
Ground
investigation works;
¡P
Extensive
grouting.
1.5
Status of Environmental Licences, Notification and Permits
Table 1.2 Environmental
Licenses, Notification and Permits Summary
Permit/
Notification/ License |
Reference No |
Valid From |
Valid Till |
Form NB |
448930, 448970, 448971 |
Mid-Sep 2019 |
NA |
Billing Account for
Disposal of C&D waste |
Account no. 7034790 |
6 Aug 2019 |
NA |
Chemical Waste
Producer Registration |
5111-236-B2557-02 |
25 Sep 2019 |
NA |
Construction Noise
Permit (Ho Man Tin Construction site) |
GW-RE1081-19 |
6 Jan 2020 |
1 Jun 2020 |
Construction Noise
Permit (Ho Man Tin Construction site)* |
GW-RE0256-20 |
16 Apr 2020 |
21 Jun 2020 |
Construction Noise
Permit (Ho Man Tin Construction site)* |
GW-RE0365-20 |
15 May 2020 |
21 Jun 2020 |
Construction Noise
Permit (Ho Man Tin Construction site) |
GW-RE0533-20 |
22 Jun
2020 |
15 Nov
2020 |
Water Discharge
License |
WT00034873-2019 |
22 Nov
2019 |
30 Nov
2024 |
WT00035436-2019 |
2 Apr
2020 |
30 Apr
2025 |
Construction
Noise Permit No. GW-RE0256-20
and GW-RE0365-20 have been cancelled since 22 June 2020.
2.
ENVIRONMENTAL MONITORING
REQUIREMENTS
Table 2.1
Construction Dust and Noise Monitoring Location
Dust
Monitoring Station ID |
Noise
Monitoring Station ID |
Monitoring
Location |
M-A3 |
M-N3 |
SKH Tsoi Kung Po Secondary School |
Notes:
1. The dust and noise monitoring station
proposed in the EM&A Manual (i.e. Ko Fai House, Kwun Fai Court with ID:
M-A6/ M-N6) was not available for impact dust and noise monitoring, therefore
impact monitoring was conducted at M-A3/M-N3 as an alternative which was agreed
by the ER, IEC and EPD;
2. The coordinates of SKH Tsoi Kung Po
Secondary School can be represented as follow:
Latitude: 22.314719, Longitude: 114.180694
(HK80 Geographical Coordinates)
2.2
Construction Dust Monitoring
Monitoring Requirement
Monitoring Equipment
2.2.2
24-hour TSP air quality
monitoring was performed using High Volume Sampler (HVS) deployed at the
designated monitoring station. The HVS shall meet all the requirements of the
EM&A Manual.
2.2.3
A portable direct
reading dust meter was used to carry out the 1-hour TSP monitoring.
2.2.4
The model of the dust
monitoring equipment used is summarized in Table
2.2.
Table 2.2 Construction
Dust Monitoring Equipment
Equipment |
Brand |
Model |
Serial No. |
High Volume Sampler (24-hour TSP) |
Tisch |
TE-5170 |
4388 |
Calibrator |
Tisch |
TE-5025A |
2456 |
Portable direct reading dust meter (1-hour TSP) |
Sibata |
LD-5R |
882148 |
Monitoring Methodology for HVS
2.2.5
The following
guidelines were adopted during the installation of HVS:
¡P
Sufficient
support is provided to secure the samplers against gusty wind.
¡P
No
two samplers are placed less than 2 meters apart.
¡P
The
distance between the sampler and an obstacle, such as buildings, is at least
twice the height that the obstacle protrudes above the sampler.
¡P
A
minimum of 2 meters of separation from walls, parapets and penthouses is
required for rooftop samples.
¡P
A
minimum of 2 meters separation from any supporting structure, measured
horizontally is required.
¡P
No
furnaces or incineration flues are nearby.
¡P
Airflow
around the samplers is unrestricted.
¡P
The
samplers are more than 20 meters from the drip line.
¡P
Any
wire fence and gate, to protect the sampler, should not cause any obstruction
during monitoring.
¡P
Permission
must be obtained to set up the samplers and to obtain access to the monitoring
stations.
¡P
A
secured supply of electricity is needed to operate the samplers.
2.2.6
Prior to the
commencement of the dust sampling, the flow rate of the high volume sampler
shall be properly set. The power supply should be checked to ensure the proper
functioning of the sampler. The sampler is recommended to be operated for 5
minutes to establish thermal equilibrium before placing any filter media at the
designated air monitoring station.
2.2.7
The filter holding
frame should be removed by loosening the four nuts and placing carefully a
weighted and conditioned filter at the centre with the stamped number upwards
on a supporting screen.
2.2.8
The filter should be
aligned on the screen so that the gasket formed an airtight seal on the outer
edges of the filter. The filter holding frame should be tightened to the filter
holder with swing bolts. The applied pressure should be sufficient to avoid air
leakage at the edges.
2.2.9
A programmed timer
should be used to control the duration of operation. Information should be
recorded on the record sheet, which included the starting time, the weather
condition and the filter number.
2.2.10
After sampling process
is finished, the filter should be removed and sent to the laboratory for
weighting. The elapsed time should also be recorded.
2.2.11
All filters should be
equilibrated in a conditioning environment for 24 hours before weighting. The
conditioning environment temperature should be between 25¢XC and 30¢XC and not
vary by more than ¡Ó3¢XC;
the relative humidity (RH) should be <50% and not vary by more than ¡Ó5%.
A convenient working RH is 40%.
Maintenance and Calibration for HVS
2.2.12
The high volume motors
and their accessories should be properly maintained, including routine motor
brushes replacement and electrical wiring checking, to ensure that the
equipment and a continuous power supply were in good working condition.
2.2.13
Initial calibration of
dust monitoring equipment shall be conducted upon installation and thereafter
at fortnightly intervals. The transfer standard shall be traceable to the
internationally recognized primary standard and be calibrated annually. The
calibration certificate for the HVS is provided in Appendix C.
Monitoring Methodology for Direct Reading Dust Meter
2.2.14
Portable Laser Particle
Photometer Monitors should be operated in accordance with the Manufacturer¡¦s
instruction Manual as below:
a) Pulling up the air sampling inlet cover
b) Changing the Mode 0 to BG
c) Pressing Start/Stop switch
d) Turning the knob to SENSI.ADJ and press it
e) Pressing Start/Stop switch again
f) Returning the knob to the position MEASURE slowly
g) Pressing the timer set switch to set measuring time
h) Removing the cap and start the measurement
Maintenance and Calibration for Direct Reading Dust Meter
2.2.15
ET shall submit
sufficient information to the IEC to prove that the instrument is capable of
achieving comparable results to the HVS. The instrument should also be
calibrated regularly, and the 1-hour sampling shall be determined periodically
by the HVS to check the validity and accuracy of the results measured by direct
reading method. The calibration certificate for the direct reading dust meter
is provided in Appendix C.
2.3
Construction Noise Monitoring
Monitoring Requirement
Table 2.3
Construction Noise Monitoring Parameters, Frequency and Duration
Parameter |
Duration |
Frequency |
A-weighted equivalent
continuous sound pressure level (Leq). L10 and L90 were also recorded |
30 minutes |
At least once per week |
Monitoring Equipment
2.3.2
Noise monitoring was
performed using sound level meter at the designated monitoring station. The
sound level meters deployed comply with the International Electrotechnical
Commission Publications 651:1979 (Type 1) and 804:1985 (Type 1) specifications.
Acoustic calibrator was deployed to check the sound level meters at a known
sound pressure level.
2.3.3
The model of the noise
monitoring equipment used is summarized in Table
2.4.
Table 2.4 Construction
Noise Monitoring Equipment
Equipment |
Brand |
Model |
Serial No. |
Acoustic Calibrator |
Casella |
CEL-120/1 |
4358443 |
Sound Level Meter |
Casella |
CEL-63X |
4181568 |
Monitoring Methodology
2.3.4
Noise measurement
should be conducted as the following procedures:
a) Free field measurements was made at monitoring location M-N3. A
correction of +3 dB(A) shall be made to the free field measurements.
b) The battery condition should be checked to ensure good functioning of
the meter.
c) Parameters such as frequency weighting, the time weighting and the
measurement time should set as follow:
(i) Frequency
weighting: A
(ii) Time
weighting: Fast
(iii) Measurement
time: continuous 5 minutes interval
d) Prior to and after noise measurement, the meter shall be calibrated
using the calibrator for 94.0 dB at 1000 Hz. If the difference in the
calibration level before and after measurement is more than 1.0 dB, the
measurement will be considered invalid and repeat of noise measurement is
required after re-calibration or repair of the equipment.
e) The wind speed at the monitoring station shall be checked with the
portable wind meter. Noise monitoring should be cancelled in the presence of
fog, rain, and wind with a steady speed exceeding 5 m/s, or wind with gusts
exceeding 10 m/s.
f) Noise measurement should be paused during periods of high intrusive
noise if possible and observation shall be recorded when intrusive noise is not
avoided.
g) At the end of the monitoring period, the Leq, L10 and L90 should be
recorded. In addition, site conditions and noise sources should also be
recorded on a standard record sheet.
Maintenance and Calibration
2.3.5
Maintenance and
calibration procedures should also be carried out, including:
a) The microphone head of the sound level
meter and calibrator should be cleaned with a soft cloth at quarterly
intervals.
b) The sound level meter and calibrator
should be calibrated annually by a HOKLAS laboratory or the manufacturer.
The
calibration certificates for noise monitoring equipment are provided in Appendix
D
2.4
Construction Dust and Noise Monitoring Schedule
2.5
The Action and Limit Levels
2.5.0
The Action and Limit
Levels for construction dust and noise monitoring are provided in Appendix F.
2.6.0
As per the EM&A
Manuals, the landscape and visual mitigation measures shall be implemented and
site inspections should be undertaken once every two weeks during the
construction period. A summary of the implementation status is presented in Section
4.
3.
ENVIRONMENTAL MONITORING
RESULTS
Table 3.1 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
Station ID |
Average (µg/m3) |
Range (µg/m3) |
Action Level
(µg/m3) |
Limit Level (µg/m3) |
M-A3 |
25 |
14-50 |
333 |
500 |
Table 3.2 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
Station ID |
Average (µg/m3) |
Range (µg/m3) |
Action Level
(µg/m3) |
Limit Level (µg/m3) |
M-A3 |
27 |
10-49 |
153 |
260 |
3.1.2
No Action and Limit
Level exceedance was recorded for 1-hour TSP monitoring and 24-hour TSP
monitoring at the monitoring location in the reporting month.
3.1.3
Major dust sources
during the monitoring included nearby traffic emission.
3.1.4
The Event and Action
Plan for the construction dust monitoring is given in Appendix I.
3.2
Construction Noise Monitoring
Table 3.3 Summary
of Construction Noise Monitoring Results in the Reporting Period
Station ID |
1Measured
Noise Level, dB(A), Leq (30 mins) |
2Corrected
Noise Level, dB(A), Leq (30 mins) |
Action Level |
3Limit Level
dB(A), Leq (30 mins) |
M-N3 |
68.3-69.3 |
59.4 |
When one documented compliant is received |
For Schools: 70dB(A) during normal teaching period and 65 dB(A) during examination
periods |
Notes:
1.
Free field noise levels were adjusted with a correlation of +3 dB(A);
2.
Corrected Noise Level was applied on 30 June 2020;
Corrected Noise Level = Measured Noise Level - Baseline Noise Level
(i.e. 67.7 dB (A));
3.
The Limit Level was 70 dB(A) for teaching period (from 1 to 26 June
2020) and 65 dB(A) for
examination period (from 29 to 30 June 2020).
3.2.2
No Limit Level
exceedance was recorded for construction noise monitoring at the monitoring
location in the reporting month.
3.2.3
One (1) Action Level
exceedance was recorded for construction noise due to the noise-related
complaints received in the reporting month.
3.2.4
Major noise sources
during the monitoring included nearby traffic emission and school activities.
3.2.5
The Event and Action
Plan for the construction noise monitoring is given in Appendix I.
3.3.2
The implemented
environmental mitigation measures for the waste management in the reporting
period are summarized in Appendix J. The
summary of observations and recommendations made for waste management during
the site inspections are presented in Table 4.1
3.3.3
Monthly summary of
waste flow table is detailed in Appendix L.
3.4.0
Bi-weekly inspection of
the implementation of landscape and visual mitigation measures were conducted
on 9 and 23 June 2020. The implementation the landscape and visual mitigation
measures in the reporting period are summarized in Appendix J.
The summary of observations and recommendations made for landscape and visual
mitigation measures during the site inspections are presented in Table 4.1.
3.4.1
The Event and Action
Plan for landscape and visual during construction phase is given in Appendix
I.
4.
ENVIRONMENTAL SITE
INSPECTION AND AUDIT
4.0.0
Site inspections were
carried out on a weekly basis to monitor the implementation of proper
environmental pollution control and mitigation measures for the Project. A
summary of the mitigation measures implementation status is provided in Appendix J.
4.0.1
In the reporting month,
five site inspections were carried out on 2, 9, 16, 23 and 30 June 2020.
Details of observations recorded during the site inspections are presented in Table
4.1.
Table 4.1 Observations
and Recommendation of Site Inspection in the Reporting Period
Environmental
Aspect |
Date |
Observations
and Recommendations |
Follow-up
Actions |
Air Quality |
Nil |
Nil |
Nil |
Noise |
Nil |
Nil |
Nil |
Water Quality |
2 June 2020 |
All drainage facilities should be regularly inspected and maintained
to ensure proper and efficient operation. |
The item was rectified by
the Contractor on 9 June 2020. |
Waste Management |
Nil |
Nil |
Nil |
Landscape and Visual |
Nil |
Nil |
Nil |
Permit/ Licenses |
Nil |
Nil |
Nil |
5.
ENVIRONMENTAL COMPLAINT AND
NON-COMPLIANCE
5.1
Complaint Handling, Prosecution and Public Engagement
5.1.0
No environmental
related prosecutions or notification of summons were received in the reporting
period.
5.1.1
One (1) noise-related
and one (1) landscape and visual related complaints were received in the
reporting month. The complaint cases in June 2020 are summarized in Table 5.1.
Table 5.1 Environmental
Complaints Log
Complaint
Log No. |
Date of
Complaint |
Received
From |
Nature of
Complaint |
Status |
EC017_CKRCT20200622_059 |
22nd
June 2020 |
1823 |
Construction
Noise |
Investigation
report was finalized on 2 July 2020. |
EC018_CKRCT20200627_061 |
27th
June 2020 |
Contract
Complaint Hotline |
Landscape and Visual |
Investigation
report was finalized on 8 July 2020. |
5.1.2
Cumulative complaint
log, summaries of complaints, notification of summons and successful
prosecutions are presented in Appendix K.
5.1.3
No public engagement
activities were conducted in the reporting period.
5.2
Summary of Environmental Non-Compliance
5.3
Summary of Monitoring Exceedance
5.3.0
One (1) Action Level
exceedance was recorded for construction noise due to the noise-related
complaints received in the reporting month. No Limit Level exceedance was
recorded for construction noise monitoring in the reporting month..
5.3.1
No Action and Limit
Level exceedance was recorded for construction dust monitoring in the reporting
month.
6.
IMPLEMENTATION STATUS OF
ENVIRONMENTAL MITIGATION MEASURE
6.0.1
The Contractor had
implemented environmental mitigation measures and requirements as stated in the
EIA Reports, the EP and EM&A Manuals. The implementation status of the
environmental mitigation measures during the reporting period is summarized in Appendix J. Status of required
submissions under the EP during the reporting period is summarised in Table
6.1.
Table 6.1
Status of Required Submission under Environmental Permit
EP Condition |
Submission |
Submission
Date |
3.4 |
Monthly EM&A Report (May 2020) |
12 June 2020 |
¡P
Drill
and Blast excavation;
¡P
Mucking
out from tunnel;
¡P
Construction
of spoil basin;
¡P
Construction
of noise enclosure;
¡P
Installation
of gantry crane;
¡P
Site
installation;
¡P
Ground
investigation works;
¡P
Extensive
grouting.
7.1.2
The recommended
mitigation measures corresponding to the main works in the next reporting
period are listed as follow:
¡P
Mitigation
measures in form of regular watering under a good site practice should be
adopted, particularly for the earthwork and breaking activities;
¡P
Any
excavated, stockpile of dusty material or load of dusty materials on a vehicle
leaving a construction site should be covered entirely by impervious sheeting;
¡P
All
construction plants / machineries should be checked / serviced on a regular basis
during the courses of construction to minimize the emission of noise generation
and eliminate dark smoke emission;
¡P
All
C&D materials generated should be transported and stored at temporary
storage area. Suitable materials should be sorted for reuse on-site;
¡P
Every
vehicle shall be cleaned thorough at the designated wheel washing area onsite;
¡P
Wastewater
generated from drilling shall be properly collected for reuse or treated by
wastewater treatment facilities before discharge;
¡P
Provision
of drip trays for equipment likely cause spillage of chemical / fuel, and
provide routine maintenance;
¡P
Erecting
temporary noise barrier for noisy Powered Mechanical Equipment (PME) and
deployment of Quality Powered Mechanical Equipment (QPME) as many as
practicable;
¡P
Conditions
in the Environmental Permit and License should be followed;
¡P
All
recommended mitigation measures specified in the approved EIA Report and
EM&A Manual shall be implemented.
7.1.3
The environmental
monitoring schedule for the next reporting month is provided in Appendix E.
8.
CONCLUSION AND
RECOMMENDATIONS
8.1.2
Construction dust
(including 1-hour and 24-hour TSP) and noise monitoring were carried out in the
reporting period.
8.1.3
One (1) Action Level
exceedance was recorded for construction noise due to the noise-related
complaints received in the reporting month. No Limit Level exceedance was
recorded for construction noise monitoring in the reporting month. No Action
and Limit Level exceedance was recorded for construction dust monitoring in the
reporting month.
8.1.4
Weekly environmental
site inspections were conducted during the reporting period. In general, the
Contractor had implemented environmental mitigation measures and requirements
as stated in the EIA Reports, the EP and EM&A Manuals.
8.1.5
One (1) noise-related
and one (1) landscape and visual related complaints were received respectively
on 22 and 27 June 2020 via the 1823 and the complaint hotline of the Contractor.
The investigation reports for the complaints were finalized on 2 July 2020 and
8 July 2020 respectively.
8.1.6
No environmental
related prosecutions or notification of summons were received in the reporting
period.
8.1.7
No environmental
non-compliance was recorded in the reporting period.
8.1.8
According to the
environmental site inspections performed in the reporting month, the following
recommendations were provided:
Air Quality Impact
¡P
No specific observation was identified in the
reporting month.
Construction Noise Impact
¡P
No specific observation was identified in the
reporting month.
Water Quality Impact
¡P
All drainage facilities should be regularly inspected and maintained to
ensure proper and efficient operation.
Waste Management
¡P
No specific observation was identified in the
reporting month.
Landscape and Visual Impact
¡P
No specific observation was identified in the
reporting month.
Permit/ Licenses
¡P
No specific observation was identified in the
reporting month.