Content
Executive Summary
5. Summary of
Exceedance, Complaints, Notification of Summons and Prosecutions
8. Conclusion and Recommendations
Overview
of Mainlaying in Tseung Kwan O |
|
Summary of Implementation Status of
Environmental Mitigation |
|
Appendix
H |
Waste
Flow Table |
Appendix I |
Landfill Gas Monitoring Equipment
Calibration Certificate |
Appendix
J |
Landfill
Gas Monitoring Data |
Appendix K |
Complaint Log and Regulatory Compliance Proforma |
Appendix
L |
|
Appendix M |
|
Appendix
N |
|
Appendix O |
Academic Calendar(s) |
Executive Summary
Introduction
A1.
Penta-Ocean - Concentric Joint Venture (POCJV) is contracted to carry out the Mainlaying in Tseung Kwan O under Contract No. 13/WSD/16 (hereinafter known as
“the Project”).
A2.
In
accordance with the Environmental Monitoring and Audit (EM&A) Manual for
the Project, EM&A works should be carried out by Environmental Team (ET),
Acuity Sustainability Consulting Limited (ASCL), during the construction phase
of the Project.
A3.
This is the 72nd Monthly
EM&A Report,
prepared by ASCL, for the
Project summarizing the monitoring results and audit findings of the EM&A
programme at and around Tseung Kwan O (TKO) during the reporting period from 1 July to 31 July 2024.
A4.
The EM&A programme for this
contract has covered environmental monitoring on construction noise level at
selected NSRs and Contractor’s environmental performance auditing in the
aspects of construction dust, construction noise, water quality, waste
management, landscape and visual and ecology.
Summary of Main Works Undertaken & Key Mitigation Measures
Implemented
A5.
Key works carried out in this reporting period for
the Project included the followings:
Location |
Construction activities
carried in the reporting month |
Wan Po Road and
TKO Area 137 |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
TKO Promenade
(Stage 1 Landfill) & Po Yap Road Roundabout |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
HK Velodrome |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
Po Lam Road
South / Ling Hong Road |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
Tsui Lam Road /
Abandoned Road |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
A6.
The major environmental impacts
brought by the above construction works
include:
·
Construction
dust and noise generation from road reinstatement and chambers construction;
·
Waste
generation from the construction activities; and
·
Impact on
water quality from construction activities
A7.
The key environmental
mitigation measures implemented for the Project in this reporting period
associated with the above
construction works include:
·
Reduction of
construction dust generation from road reinstatement and chambers construction;
·
Reduction of
noise from equipment and machinery on-site;
·
Sorting and
storage of general refuse and construction waste; and
·
Treatment of
wastewater through water treatment facilities before discharge
Summary of Exceedance & Investigation & Follow-up
A8.
Noise
monitoring was scheduled in the reporting month for NSR4 Creative Secondary
School on 5, 11, 17 and 23 July 2024 as construction works were conducted within
300m to the noise sensitive receiver. No Action or Limit Level exceedance was
recorded during the reporting period.
A9.
Water quality monitoring was
carried out during the disinfection procedure. According to Water Supply Department, the
discharge of dechlorinated effluent arranged on 13 – 19 December 2023 and TRC
monitoring at the sampling locations (outlet of the Service Reservoir) was
carried out during the discharge. The TRC for the discharge are recorded less
than 0.1mg/L and all results are below the action level.
A10.
According to the Contractors,
all pits or trenches were backfilled and undergo reinstatement. The landfill
gas monitoring was ceased from February 2024.
Complaint Handling and Prosecution
A11.
No environmental complaint was received in the
reporting month. No notifications of summons and prosecution was received in
the reporting month.
Reporting
Change
A12.
There were
no changes reported that may affect the on-going EM&A programme.
Summary of Upcoming Key Issues and Key Mitigation
Measures
A13.
Key works in the next reporting month for the
Project will include the followings:
Location |
Construction activities
to be carried out in next reporting month |
Wan Po Road and
TKO Area 137 |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
TKO Promenade
(Stage 1 Landfill) & Po Yap Road Roundabout |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
HK Velodrome |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
Po Lam Road
South / Ling Hong Road |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
Tsui Lam Road /
Abandoned Road |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
A14.
The major environmental impacts brought by the above construction works
will include:
·
Construction
dust and noise generation of road reinstatement and chambers construction;
·
Waste
generation from construction activities; and
·
Impact on
water quality from construction activities.
A15.
The key environmental mitigation measures for the Project in the coming
reporting period associated with the above construction works will include:
·
Reduction of
construction dust generation of road reinstatement and chambers construction by regular water
spraying and covering of dusty materials with screenings;
·
Reduction of
noise from equipment and machinery on-site;
·
Sorting and
storage of general refuse and construction waste; and
1.1.
Background
The proposed
Desalination Plant at Tseung Kwan O (DPTKO) will produce potable water with an
initial capacity of 135 million liters per day (MLD), expandable to an ultimate
capacity of 270 MLD in the future to provide a secure and alternative freshwater
resource complying with the World Health Organization (WHO) standards. The
plant will adopt the Seawater Reverse Osmosis (SWRO) technology, which
dominates the market due to its reliability and progressive reduction in cost
as the technology advances.
This is the 72nd
Monthly EM&A Report for the Project which summarizes the key
findings of the EM&A programme during the reporting period from 1 July to 31 July 2024.
The Project
Organization structure for Construction Phase is presented in Figure 1.1.
Figure 1.1 Project
Organization Chart
Contact details of the key personnel are
presented in Table 1.1 below:
Table 1.1 Contact details of the key personnel
Party |
Position |
Name |
Telephone no. |
Penta-Ocean
- Concentric Joint Venture |
Environmental Officer |
Calvin Chik |
9863 5630 |
Acuity Sustainability
Consulting Limited |
Environmental Team
Leader |
Jacky Leung |
2698 6833 |
ANewR Consulting Limited |
Independent
Environmental Checker |
James Choi |
2618 2831 |
1.3.
Summary of Construction Works
Details of
the major construction works undertaken in this reporting period are shown in Table 1.2 and the construction works
locations are shown in Appendix B.
The construction programme is presented in Appendix
A.
Table 1.2 Summary of
the Construction Works Undertaken during the Reporting Month
Location |
Construction activities
carried out in the reporting month |
Wan Po Road and
TKO Area 137 |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
TKO Promenade
(Stage 1 Landfill) & Po Yap Road Roundabout |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
HK Velodrome |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
Po Lam Road
South / Ling Hong Road |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
Tsui Lam Road /
Abandoned Road |
·
Road pavement reinstatement ·
Remaining works installation of accessories for completed chambers |
A summary of the valid permits, licences, and or notifications on
environmental protection for this Project is presented in Table 1.3.
Table 1.3
Summary of the Status of Environmental Licence, Notification and Permit
Reference
No. |
Valid
Period |
Status |
Remark |
|
From |
To |
|||
Environmental
Permit |
||||
EP-503/2015/B |
-- |
-- |
Valid |
N/A |
FEP-01/503/2015/B |
-- |
-- |
Valid |
N/A |
Notification
of Construction Works under the Air Pollution Control (Construction Dust)
Regulation |
||||
423775 |
-- |
-- |
Valid |
N/A |
Chemical
Waste Producer Registration |
||||
5213-839-P3287-01 |
-- |
-- |
Valid |
N/A |
Billing
Account for Disposal of Construction Waste |
||||
A/C no.: 7029491 |
-- |
-- |
Valid |
N/A |
Water
Discharge Licence |
||||
WT0002035-2023 |
16 Feb 2024 |
31 Dec 2028 |
Valid |
N/A |
The status for all environmental aspects is presented Table 1.4.
Table
1.4 Summary of Status for Key Environmental
Aspects under
the EM&A Manual
The
baseline noise monitoring result has been reported in Baseline Monitoring
Report and submitted to EPD under VEP Condition 3.4. |
|
Water |
|
Impact
monitoring of disinfection procedure |
Completed |
Landfill
Gas |
|
Impact
Monitoring |
Ceased
from February 2024 |
Other than the EM&A works by ET, regular environmental management
meetings were conducted in order to enhance
environmental awareness and closely monitor the environmental performance of
the contractors.
The EM&A
programme has been implemented in accordance with the recommendations presented
in the approved EIA Report and the EM&A Manual. A summary of implementation
status of the environmental mitigation measures for the construction phase of
the Project during the reporting period is provided in Appendix C.
To ensure no adverse noise
impact, noise monitoring is recommended to be carried out within 300m radius
from the nearby noise sensitive receivers (NSRs), during construction phase. The NSRs
selected as monitoring station are (i) NSR4 –
Creative Secondary School, (ii) NSR24 – PLK Laws Foundation College, and (iii)
NSR31 – School of Continuing and Professional Studies – CUHK respectively.
Referring to
EM&A Manual Section 4.1.2, the impact noise monitoring should be carried
out at all the designated monitoring stations when there are project-related
construction activities undertaken within a radius of 300m from the monitoring
stations.
Impact
monitoring for noise impact was conducted in the reporting month for NSR4 –
Creative Secondary School on 5, 11, 17 and 23 July
2024 as construction works were
conducted within 300m to the noise sensitive receiver. Detailed monitoring
results can be found in Appendix G.
2.2. Noise Monitoring Parameters, Time,
Frequency
Impact noise monitoring was conducted
weekly in the reporting period between 0700-1900 on normal weekdays. Construction works will follow
the requirements as stipulated in the valid CNPs if works have
to be conducted in the restricted hours.
Construction
noise level was measured in terms of the A-weighted equivalent continuous sound
pressure level (LAeq). Leq
30min was used as the monitoring parameter for the time
period between 0700 and 1900 on normal weekdays. Table 2.1 summarizes the monitoring parameters, frequency,
and duration of the impact noise monitoring. The monitoring schedule is
provided in Appendix D.
Table 2.1 Noise Monitoring Parameters, Time, Frequency and Duration
Time |
Frequency |
Duration |
Parameters |
Daytime: 0700-1900 |
Once per week |
Continuously
in Leq 5min/Leq
30min (average of 6 consecutive Leq
5min) |
Leq, L10
& L90 |
2.3. Noise Monitoring Locations
The monitoring locations should
normally be made at a point 1m from the exterior of the NSRs building façade
and be at a position 1.2m above the ground. A correction of +3dB(A) should be
made to the free-field measurements.
According to
the environmental findings detailed in the EIA report and Baseline Monitoring
Report, the designated locations for the construction noise monitoring are
listed in Table 2.2 below.
Table 2.2 Noise Monitoring Location
NSR ID |
Noise Sensitive Receivers |
Monitoring Location |
Position |
NSR 4 |
Creative
Secondary School |
Roof Floor |
1 m from facade |
NSR 24 |
PLK Laws
Foundation College |
Pedestrian Road
on Ground Floor |
Free-field |
NSR 31 |
School of
Continuing and Professional Studies - CUHK |
Roof Floor |
1 m from facade |
Three noise
monitoring locations for impact monitoring at the nearby sensitive receivers
are shown in Figure 2.1-2.3.
Figure 2.1 NSR4 Creative Secondary School |
Figure 2.2 NSR24 PLK Laws Foundation College |
Figure 2.3 NSR31 School of Continuing and Professional Studies - CUHK |
2.4. Impact Monitoring Methodology
Integrated sound level meters
were used for the noise monitoring. The meters were in compliance with the International Electrotechnical
Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1)
specifications. Immediately prior to and following each noise measurement the
accuracy of the sound level meters was checked using an acoustic calibrator
generating a known sound pressure level at a known frequency. Measurements may
be accepted as valid only if the calibration level before and after the noise
measurements agree to within 1.0 dB(A).
Calibration
certificates of the instruments used are presented in Appendix E. Noise
measurements were not made in the presence of fog, rain, wind with a steady
speed exceeding 5 m/s or wind with gusts exceeding 10 m/s. The wind speed was
checked with a portable wind speed meter capable of measuring the wind speed in
m/s.
Equipment |
Brand and Model |
Serial Number |
Date of
Calibration |
Expiry Date |
Sound Level Meter |
SVANTEK 971 |
C132261 |
27 Oct 2023 |
26 Oct 2024 |
Sound Level Meter Calibrator |
RION NC-75 |
35124527 |
27 Oct 2023 |
26 Oct 2024 |
Pocket Wind Meter Anemometer |
Kestrel 1000 Wind Meter |
Nil |
Nil |
Nil |
The Action/Limit Levels are in
line with the criteria of Practice Note for Professional Persons (ProPECC PN 2/93) “Noise from Construction Activities
– Non-statutory Controls” and Technical Memorandum on Environmental Impact
Assessment Process issued by HKSAR Environmental Protection Department [“EPD”]
under the Environmental Impact Assessment Ordinance, Cap 499, S.16 are
presented in Table 2.4.
Table 2.4 Action and Limit Levels for Noise
Time Period |
Action Level |
Limit Level (dB(A)) |
0700-1900 on
normal weekdays |
When one documented complaint is received from
any one of the noise sensitive receivers |
·
70 dB(A) for school and ·
65 dB(A) during examination period |
Notes: (a) Limits
specified in the GW-TM and IND-TM for construction and operation noise,
respectively. |
If exceedances are found during noise
monitoring, the actions in accordance with the Event and Action Plan will be
carried out according to Appendix F.
2.6. Monitoring Results and Observations
Referring to EM&A Manual
Section 4.1.2, impact monitoring for noise impact was scheduled weekly in the
reporting month for NSR4 – Creative Secondary School on 5, 11, 17 and 23 July 2024. Detailed monitoring results are presented in Appendix G.
No action or limit level exceedance was
recorded for construction noise monitoring during the reporting period.
The waste
generated from this Project includes inert construction and demolition
(C&D) materials, and non-inert C&D materials. Non-inert C&D
materials are made up of general refuse, vegetative wastes, and recyclable
wastes such as plastics and paper/cardboard packaging waste. Steel materials
generated from the project are also grouped into non-inert C&D materials as
these materials were not disposed of with other inert C&D materials. With
reference to relevant handling records and trip tickets of this Project, the
quantities of different types of waste generated in the reporting month are
summarised in Table 3.1. Details of
cumulative waste management data are presented as a waste flow table in Appendix H.
Table
3.1 Quantities of waste generated from the Project
Reporting
period |
Quantity
|
|||||
Inert
C&D Materials (in
‘000m3) |
Chemical
Waste (in
‘000kg) |
Non-inert
C&D Materials |
||||
Others, e.g., General Refuse disposed at
Landfill (in
‘000m3) |
Recycled
materials |
|||||
Paper/cardboard (in
‘000kg) |
Plastics (in
‘000kg) |
Metals
(in
‘000kg) |
||||
July 2024 |
0.029 |
0.000 |
0.005 |
0.021 |
0.000 |
0.000 |
In accordance with Section 11 of the EM&A
Manual, monitoring of landfill gas is required for construction works within
the 250m Consultation Zone. Part of the desalination plant and the indicative area of natural
slope mitigation works fall within the SENT Landfill Extension Consultation
Zone; and part of the 1,200 mm diameter fresh water
mains along Wan Po Road falls within the SENT Landfill and SENT Landfill
Extension Consultation Zones, TKO Stage II/III Restored Landfill and TKO Stage
I Restored Landfill Consultation Zones.
4.2.
Monitoring Location
Monitoring of oxygen, methane, carbon dioxide
and barometric pressure was performed for excavations at 1m depth or more
within the Consultation Zone.
During
construction of works within the consultation zones, excavations of 1m depth or
more was monitored:
·
At the
ground surface before excavation commences;
·
Immediately
before any worker enters the excavation;
·
At the
beginning of each working day for the entire period when the excavation remains
open; and
·
Periodically
through the working day whilst workers are in the excavation.
For
excavations between 300mm and 1m deep, measurements should be carried out:
·
Directly
after the excavation has been completed; and
·
Periodically
whilst the excavation remains open.
The area
required to be monitored for landfill gas in the reporting period are shown in Figure 4.1 to Figure 4.9.
Figure 4.1 Monitoring Location - CH.A 6+70 |
|
Figure 4.2 Monitoring Location – CH.A 13+50 ~ 14+00 (Pit
A) |
|
Figure 4.4 Monitoring Location – Pit 137A (137 Pit A) |
. |
Figure 4.5 Monitoring Location – Pit 137B (137 Pit B) |
|
Figure 4.6 Monitoring Location – Pit 137C (137 Pit C) |
|
Figure 4.7
Monitoring Location – Wan Po Road 4 |
|
Figure 4.8
Monitoring Location – Wan Po Road 5 |
|
Figure 4.9 Monitoring
Location –CH.CA 0+00 to
CH.CA 04+25 (CH.C 7+40 ~
12+00) |
4.3.
Monitoring Parameters
Landfill Gas monitoring was carried out to
identify any migration between the landfill and the Project and to ensure the
safety of the construction, operation and maintenance personnel working
on-site, visitors and any other person within the Project area.
The following parameters were monitored:
·
Methane.
·
Oxygen.
·
Carbon
Dioxide.
·
Barometric
Pressure.
4.4.
Action and Limit Level
Action and
Limit Level are provided in Table 4.1.
Table 4.1
Action and Limit Level for Landfill Gas Monitoring Equipment
Parameters |
Action Level |
Limit Level |
Oxygen (O2) |
<19% O2 |
<19% O2 |
Methane (CH4) |
>10% LEL |
>20% LEL |
Carbon Dioxide (CO2) |
>0.5% CO2 |
>1.5% CO2 |
4.5.
Monitoring Equipment
·
Complying
with the Landfill Gas Hazard Assessment Guidance Note as intrinsically safe;
·
Capable of
continuous barometric pressure and gas pressure measurements;
·
Normally
operated in diffusion mode unless required for spot sampling, when it should be
capable of operating by means of an aspirator or pump;
·
Having low
battery, fault and over range indication incorporated;
·
Capable of
storing monitoring data, and shall be capable of being down-loaded
directly;
·
Measure in
the following ranges:
methane |
0-100% Lower
Explosion Limit (LEL) and 0-100% v/v; |
oxygen |
0-25% v/v; |
carbon dioxide |
0-5% v/v; and |
barometric pressure |
mBar (absolute) |
alarm (both
audibly and visually) in the event that the
concentrations of the following are exceeded:
methane |
>10% LEL; |
oxygen |
<19% by
volume; and |
carbon dioxide |
>0.5% by
volume |
barometric pressure |
mBar (absolute) |
Monitoring
Equipment used in the reporting period are summarised in Table 5.2. The Landfill Gas monitoring equipment
calibration certificate is presented in Appendix
I.
Table 5.2 Landfill Gas Monitoring Equipment
Equipment |
Brand and Model |
Calibration Expiry Date |
Portable Gas Detector |
-- |
-- |
CO2 Analyzer |
-- |
-- |
4.6.
Monitoring Results
According to
the Contractors, all pits or trenches were backfilled and undergo
reinstatement. No landfill gas monitoring was carried out by the Registered
Safety Officer of the Contractor at the excavation locations. The
landfill gas monitoring was ceased from February 2024.
Table 4.3 Action and Limit Levels and Event and
Action Plan for LFG Hazard
Parameters |
Level |
Action |
Oxygen (O2) |
Action Level < 19% O2 |
Ventilate trench/void to restore O2 to
> 19% |
Limit Level < 19% O2 |
Stop works Evacuate personnel/prohibit entry Increase ventilation to restore O2 to > 19% |
|
Methane
(CH4) |
Action Level >10%
LEL |
Post "No Smoking" signs Prohibit hot works Increase ventilation to restore CH4 to
<10% LEL |
Limit
Level >20% LEL |
Stop works Evacuate personnel/prohibit entry Increase ventilation to restore CH4 to<10%
LEL |
|
Carbon
Dioxide (CO2) |
Action
Level >0.5% CO2 |
Ventilate
to restore CO2 to < 0.5% |
Limit
Level >1.5% CO2 |
Stop works Evacuate personnel / prohibit entry Increase ventilation to restore CO2 to
<0.5% |
The Environmental Complaint Handling Procedure is shown in below Figure 5.1:
Figure 5.1 Environmental
Complaint Handling Procedure
Impact monitoring for noise impact was scheduled in the reporting
month for NSR4 – Creative Secondary School on 5, 11, 17 and 23
July 2024 was construction works were conducted within
300m to the noise sensitive receiver. Detailed monitoring results can be found
in Appendix G. No action or limit
levels exceedance was recorded in the reporting period.
According to the Contractors, all pits or
trenches were backfilled and undergo reinstatement. No landfill gas monitoring
was carried out by the Registered Safety Officer of the Contractor at the
excavation locations. The landfill gas monitoring was ceased from February 2024.
No environmental
complaint was received in the reporting period. No notification of summons and
prosecution was received in the reporting period.
Statistics on complaints and regulatory
compliance are summarized in Appendix K.
Site inspections were carried out on a weekly basis to monitor the
implementation of proper environmental pollution control and mitigation
measures under the Contract. In the reporting period, site inspections were
carried out on 4, 11, 18 and 25 July 2024 at
the site portions list in Table 6.1
below. One joint site inspection with IEC was carried
out on 18 July 2024.
Table 6.1 Site Inspection Record
Date |
Inspected Site Portion |
Time |
04 July 2024 |
Portion J |
09:30
– 10:30 |
11 July 2024 |
Portion J |
09:30
– 10:30 |
18 July 2024 |
Portion J |
09:30
– 10:30 |
25 July 2024 |
Portion J |
09:30
– 10:30 |
Minor deficiencies were observed during
weekly site inspections. Key observations during the site inspections are
summarized in Table 6.2.
Table 6.2 Site
Observations
Date |
Environmental Observations |
Follow-up Status |
04 July 2024 |
At
area A, no NRMM label was posted in the power generator. |
NRMM label posted on power generator
accordingly. |
11 July 2024 |
No
major environmental deficiency was observed during site inspection. |
N.A. |
18 July 2024 |
The
construction waste should be cleared regularly. (Area A) |
Waste was cleared. |
25 July 2024 |
Chemical
containers should be stored properly. Drip Tray should be provided to prevent
chemical leakage. (near HK Velodrome) |
Chemical containers were removed. |
According to the EIA Study Report,
Environmental Permit, contract documents and EM&A Manual, the mitigation
measures detailed in the documents should be implemented as much as practical
during the reporting period. An updated Implementation Status of Environmental
Mitigation Measures (EMIS) is provided in Appendix
C.
Site inspection proforma of the reporting period is provided in Appendix L.
Table 7.1. Key works for the next reporting month
Location |
Construction activities
to be carried out in next reporting month |
Wan Po Road and
TKO Area 137 |
·
Road pavement reinstatement ·
Shrubs planting |
TKO Promenade
(Stage 1 Landfill) & Po Yap Road Roundabout |
·
Road pavement reinstatement ·
Shrubs planting |
HK Velodrome |
·
Road pavement reinstatement ·
Shrubs planting |
Po Lam Road
South / Ling Hong Road |
·
Road pavement reinstatement ·
Shrubs planting |
Tsui Lam Road /
Abandoned Road |
·
Road pavement reinstatement ·
Shrubs planting |
The major
environmental impacts brought by the above construction works will include:
·
Construction
dust and noise generation of road reinstatement and remaining chambers construction;
·
Waste
generation from construction activities; and
·
Impact on
water quality from construction activities.
·
Dust
suppression by regular wetting and water spraying for Road reinstatement and
remaining chambers construction;
·
Reduction of
noise from equipment and machinery on-site;
·
Sorting and
storage of general refuse and construction waste; and
Referring to EM&A Manual Section 4.1.2, the impact noise
monitoring should be carried out at all the designated monitoring stations when
there are project-related construction activities undertaken within a radius of
300m from the monitoring stations.
The
tentative impact monitoring schedule for the next reporting month is attached
in Appendix N.
This is the 72nd monthly
Environmental Monitoring and Audit (EM&A) Report presenting the EM&A
works undertaken during the period from 1 July to 31 July
2024 in accordance with the EM&A Manual and the requirement under EP-503/2015/B
and FEP-01/503/2015/B.
Impact
monitoring for noise impact was scheduled in the reporting month for NSR4 –
Creative Secondary School on 5, 11, 17 and 23 July
2024 construction works were conducted within 300m
to the noise sensitive received. No action and limit level exceedance for
construction noise monitoring was recorded in the reporting period.
Water quality monitoring was carried out
during the disinfection procedure. According to Water Supply Department, the discharge
of dechlorinated effluent arranged on 13 – 19 December 2023 and TRC monitoring at
the sampling locations (outlet of the Service Reservoir) was carried out during
the discharge. The TRC for the discharge are recorded less than 0.1mg/L and all
results are below the action level.
According to the Contractors, all pits or
trenches were backfilled and undergo reinstatement. No landfill gas monitoring
was carried out by the Registered Safety Officer of the Contractor at the
excavation locations. The landfill gas monitoring was ceased from February 2024.
Weekly environmental site inspections were
conducted during the reporting month. Observations and Recommendation were made
during site inspection, Contractor was reminded that sedimentation facilities
shall be provided on site to remove silt particles from runoff before discharge
and to meet the requirements of the TM standard under the WPCO.
No environmental
complaint was received in the reporting month. No notification of
summons and prosecution was received in the reporting month.
The ET will
keep track on the construction works to confirm compliance of environmental requirements
and the proper implementation of all necessary mitigation measures.