Table of Content
1.3 Construction Works undertaken
during the Reporting Month
1.4 Summary of EM&A Requirements
2.4 Monitoring Parameters,
Frequency and Duration
2.5 Monitoring
Procedures and Calibration Details
3.4 Monitoring Parameters, Frequency
and Duration
3.5 Monitoring Procedures
and Calibration Details
4.1 Review of Environmental
Monitoring Procedures
4.2 Assessment
of Environmental Monitoring Results
4.5 Status of Environmental Licensing
and Permitting
4.6 Implementation Status of
Environmental Mitigation Measures
4.7 Implementation Status of Event/Action
Plans
4.8 Implementation Status of Environmental
Complaint Handling Procedures
5.1 Key Issues for the Coming Month
5.2 Monitoring Schedules for the
Next 3 Months
5.3 Construction Program for the
Next 3 Months
List of Tables
Table 1.1......... Construction Activities and Their
Corresponding Environmental Mitigation Measures
Table 2.1......... Air Quality
Monitoring Locations
Table 2.2......... Air Quality Monitoring Equipment
Table 2.3......... Air
Quality Monitoring Parameter, Duration and Frequency
Table 3.1......... Noise Monitoring Equipment
Table 3.2......... Noise Monitoring Duration and Parameter
Table 4.1......... Summary of AL Level Exceedances on Monitoring Parameters
Table 4.2......... Estimated Amounts of Waste in September
2022
Table 4.3......... Summary of Environmental Licensing and Permit Status
Table 4.4......... Environmental Complaints Received in September 2022
Table 4.5......... Outstanding Environmental Complaints Carried Over
List of figures
Figure 1.1 Layout of Work Site
Figure 2.1 Location of Air Quality
Monitoring Stations
Figure 3.1 Location of Noise
Monitoring Stations
Appendices
Appendix B Action and Limit Levels for Air Quality and Noise
Appendix C Environmental Monitoring Schedule
Appendix D Air Quality Monitoring
Results for September 2022
Appendix E Noise Monitoring
Results for September 2022
Appendix F The QA/QC Procedures and Results
Appendix J Tentative Construction
Programme
Appendix K Monthly
Waste Flow Table for September 2022
This is the 149th monthly Environmental Monitoring and
Audit (EM&A) report for the Project “Construction of Lamma Power
Station Extension” prepared by the Environmental Team (ET). This report presents the results of impact
monitoring on air quality and noise for the said project in September 2022.
The reclamation and submarine
pipeline works were completed with the first gas-fired combined cycle unit
(viz. Unit L9) commissioned in October 2006, working currently on base load
operation. To cope with the scheduled
retirement of the existing units at Lamma Power Station, the second gas-fired
combined cycle unit (viz. Unit L10) L10 was commissioned for reliable operation
in February 2020.
In September 2016, the
Government approved HK Electric to construct the third combined cycle gas-fired
generating unit (Unit L11) to implement the 2020 Fuel Mix Target. L11 was commissioned for reliable operation
effective in May 2022. The operational
EM&A work for L9, L10 and L11 is recorded in the separate monthly EM&A
report for the Project “Operation of Lamma Power Station
Extension”.
With the Government’s approval to build the fourth combined cycle gas-fired generating unit (L12) in July 2018, the associated construction work commenced in April 2019. When L12 is commissioned in 2023, the total gas-fired electricity generation will further rise to reach about 70% of our total output.
Air and noise
monitoring were performed. The results were checked
against
the established Action/Limit (AL) levels. An on-site audit was conducted once per week.
The implementation status of the environmental
mitigation measures, Event/Action Plan and environmental
complaint handling procedures were also checked.
Construction
Activities Undertaken
Construction
activities for Lamma Extension during the reporting month are tabulated as
follows:
Item |
Construction
Activities |
Unit L12 Civil and
Building Works |
Construction of
Main Station Building, construction of No. 5 Chimney, construction of L12
GRS, construction of superstructure and cable trench works for ACB, construction
of cable trench and installation of precast parapet for Cable Bridge (North
& South), construction of superstructure for shunt reactor compound
extension and reinstatement of seawall blocks and construction of external
wall of intake chamber for No. 5 C.W. Intake. |
Unit L12 Mechanical
Erection |
Condenser
installation, HRSG installation and turbine block installation |
Unit L12 Electrical,
Instrumentation & Control Erection |
Cable
installation |
Environmental
Monitoring Works
All monitoring work
at designated stations was performed as scheduled satisfactorily.
Air Quality
No exceedance of Action/Limit levels on 1-hour TSP and 24-hour
TSP for air quality was recorded in the month.
Noise
No exceedance of Action and Limit
levels for
noise arising from the construction of Lamma Extension was recorded in the month.
Site Environmental Audit
EPD officials from Regional Office (South) visited Lamma Power Station
on 8/9/2022. There was no adverse
comment from EPD regarding the construction site.
Site audits were carried out on a weekly basis to monitor environmental
issues on the construction site. The
site conditions were generally satisfactory.
Environmental Licensing
and Permitting
Description |
Permit No. |
Valid Period |
Issued To |
Date of Issuance |
|
From |
To |
||||
Varied Environmental Permit |
EP-071/2000/D |
28/09/20 |
- |
HK Electric |
28/09/20 |
Construction Noise Permit |
GW-RS0222-22 |
13/04/22 |
12/10/22 |
Contractor |
11/04/22 |
Construction Noise Permit |
GW-RS0551-22 |
10/07/22 |
07/01/23 |
Contractor |
08/07/22 |
Construction Noise Permit |
GW-RS0613-22 |
29/07/22 |
27/01/23 |
Contractor |
27/07/22 |
Construction Noise Permit |
GW-RS0674-22 |
01/09/22 |
28/02/23 |
Contractor |
17/08/22 |
WPCO Discharge Licence |
WT00037613-2021 |
15/04/21 |
30/04/26 |
Contractor |
15/04/21 |
WPCO Discharge Licence |
WT00037665-2021 |
06/05/21 |
31/05/26 |
Contractor |
06/05/21 |
Registration of Chemical Waste Producer |
WPN5213-912-P2781-22 |
22/02/16 |
- |
Contractor |
22/02/16 |
Registration of Chemical Waste Producer |
WPN5517-912-T2007-02 |
17/03/05 |
- |
Contractor |
17/03/05 |
Waste
Disposal Billing Account |
Account No.:
7038672 |
27/10/20 |
- |
Contractor |
27/10/20 |
Waste
Disposal Billing Account |
Account No.:
7039272 |
08/01/21 |
- |
Contractor |
08/01/21 |
Waste
Disposal Billing Account |
Account No.:
7041942 |
21/10/21 |
- |
Contractor |
21/10/21 |
Implementation
Status of Environmental Mitigation Measures
Environmental mitigation measures for the construction activities
as
recommended in the EM&A manual were implemented in the reporting
month.
Environmental
Complaints
No complaint in
relation to the environmental impact of the construction activities was
received in the reporting month.
Future
Key Issues
The future key
issues to be considered in the coming month are as follows:
Unit L12 Civil and
Building Works
-
to continue
monitoring the noise level during construction and to ensure compliance with the
CNP’s already obtained;
-
to monitor and review the sufficiency of the dust suppression measures
provided and increase the resources accordingly if necessary;
-
to treat wastewater in sedimentation pit and tanks before
discharge and to ensure compliance with the WPCO discharge licence already
obtained;
Unit L12 Mechanical
Erection
-
to continue
monitoring the noise level during construction and to ensure compliance with the
CNP’s already obtained;
-
to continue executing the preventive measures for avoiding noise
exceedance and keep monitoring/ reviewing the performance;
-
to monitor and review the sufficiency of the dust suppression measures
provided and increase the resources accordingly if necessary.
Unit L12 Electrical,
Instrumentation & Control Erection
-
to continue
monitoring the noise level during construction and to ensure compliance with the
CNP’s already obtained;
-
to continue executing the preventive measures for avoiding noise
exceedance and keep monitoring/ reviewing the performance;
-
to monitor and review the sufficiency of the dust suppression measures
provided and increase the resources accordingly if necessary.
Concluding
Remarks
The environmental
performance of the project was generally satisfactory.
The Environmental Team (hereinafter
called the “ET”) was formed
within the Hongkong Electric Co. Ltd (HEC) to undertake Environmental Monitoring and Audit for “Construction of Lamma Power Station Extension”
(hereinafter called the “Project”). Under the
requirements of Section 6 of
Environmental Permit EP-071/2000/D, an EM&A
programme for impact
environmental monitoring set out in the EM&A Manual (Construction Phase) is required to be implemented. In accordance with the EM&A Manual,
environmental monitoring of air quality,
noise and water quality
and regular environmental audits are required
for the Project. With the completion of reclamation and submarine pipeline works,
no further marine water quality monitoring would be required.
The Project involves
the construction of a gas-fired power station employing combined cycled gas
turbine technology, forming an extension to the existing Lamma Power
Station. The key elements of the Project
including the construction activities associated with the transmission system
and submarine gas pipeline are outlined as follows.
·
dredging and
reclamation to form approximately 22 hectares of usable area;
·
construction of six
300MW class gas-fired combined cycle units;
·
construction of a
gas receiving station;
·
construction of a
transmission system linking the Lamma Extension to load centres on Hong Kong
Island;
·
laying of a gas
pipeline for the supply of natural gas to the new power station
This report summarizes the
environmental monitoring and audit work for the Project for the month of
September 2022.
An Environmental
Management Committee (EMC) has been set up in HEC to oversee the Project. The management structure includes the
following:
·
Environmental
Protection Department (The Authority);
·
Environmental
Manager (The Chairman of the Environmental Management Committee);
·
Engineer;
·
Independent
Environmental Checker (IEC);
·
Environmental
Team (ET);
·
Contractor.
The project organisation chart for the construction EM&A programme is shown in Appendix A.
1.3
Construction
Works undertaken during the Reporting Month
Construction activities for Unit L12 civil
and building works were, construction of Main Station Building, construction of
No.5 Chimney, construction of L12 GRS, construction of superstructure and cable
trench works for ACB, and construction of cable trench and
installation of precast parapet for Cable Bridge (North & South), construction
of superstructure for shunt reactor compound extension, reinstatement of seawall
blocks and construction of external wall of intake chamber for No. 5 C.W.
Intake. Construction activities for Unit L12 mechanical erection were condenser
installation, HRSG installation and turbine block installation. Construction activity for Unit L12
electrical, instrumentation & control erection was cable installation. Layout
plan for construction site is shown in Figure 1.1.
The main construction activities carried out during
the reporting month and the corresponding environmental mitigation measures are
summarized in Table 1.1. The implementation of major mitigation
measures in the month is provided in Appendix I.
Table 1.1 Construction Activities and Their
Corresponding Environmental Mitigation Measures
Item |
Construction
Activities |
Environmental Mitigation Measures |
Unit L12 Civil and Building
Works
|
||
1. |
Construction of Main Station Building Construction of No.5 Chimney Construction of L12 GRS ACB Construction of superstructure Cable trench works |
Air
-
All regulated
machine attached with valid exception/approval NRMM labels. -
Water truck and
water sprinkler system would be used. -
Water spraying
for concrete breaking works. -
Soil stock would
be covered with cement or tarpaulin or keep the entire surface wet. Wheel washing facility was provided. Noise
-
Works conducted
during restricted hours should comply with the valid CNP. -
Noise emission
label was provided for air compressor. Wastewater
- Wastewater should be treated in desilting pit and tanks before discharge. Solution should be added to speed up the sedimentation process. Sediment in pit and tanks must be removed regularly. The frequency would be in weekly basis depends on the volume of sediment accumulated in order to maintain sufficient volume for wastewater treatment. -
Waste
Management
-
Excavated soil was temporary stored for backfilling and
reuse in other projects.
-
Scrape metal would
be recycled. -
Chemical waste
should be collected by licensed collector. |
2. |
Cable Bridge (North & South): Construction of cable trench
and installation of precast parapet Shunt Reactor Compound Extension Construction of superstructure No. 5 C.W. Intake Reinstatement of
seawall blocks and construction of external wall of intake chamber |
Air
-
All regulated
machine attached with valid exception/approval NRMM labels. -
Water truck,
water sprinkler system and mist cannon were used. -
Excavated soil
slop covered with tarpaulin. -
Wheel washing
facilities was provided. -
Water spraying
on haul road and during concrete breaking. Noise
-
Noise emission
label was provided for air compressor. -
Works conducted
during restricted hours should comply with the valid CNP. Waste
Management
-
Excavated soil would
be transferred to other project for reuse. Wastewater -
Wastewater would
be treated in desilting tanks or wastewater treatment facility before
discharge. -
Silt curtain was provided as preventive
measures at Intake 5. |
Unit L12 Mechanical Erection
|
||
3. |
Condenser installation HRSG installation Turbine block installation |
Air
-
Dust
suppression measures implemented according to the EMP. Noise
-
General noise
mitigation measures employed at all work sites throughout the construction
phase. Waste
Management
-
Waste Management Plan submitted and implemented
|
Unit L12 Electrical, Instrumentation & Control Erection
|
||
4. |
Cable installation |
Air
-
Dust
suppression measures implemented according to the EMP. Noise
-
General noise
mitigation measures employed at all work sites throughout the construction
phase. Waste
Management
-
Waste Management Plan submitted and implemented.
|
1.4
Summary of
EM&A Requirements
The detailed EM&A monitoring work for air quality and noise are described
in Sections 2 and 3 respectively. Regular environmental
site audits for air
quality, noise, water quality and waste management were carried out.
The following
environmental audits are summarized in Section 4 of this report:
·
Environmental
monitoring results;
·
Waste Management
Records;
·
Weekly site audit
results;
·
The status of environmental
licensing and permits for the Project;
·
The
implementation status of environmental protection and pollution control/ mitigation
measures.
Future key issues will be reported in Section 5 of
this report.
1-hour and 24-hour TSP monitoring
at agreed frequencies were conducted to monitor air
quality. The
impact monitoring data were checked against the Action/Limit Levels as determined
in the Baseline Monitoring Report (Construction Phase). Appendix B shows the established
Action/Limit Levels for Air Quality.
Three dust monitoring locations were selected for 1-hour TSP sampling
(AM1, AM2 & AM3) while four monitoring locations were selected for 24-hour
TSP sampling (AM1, AM2, AM3 and AM4). Table 2.1 tabulates the monitoring stations. The locations of the monitoring stations are
shown in Figure 2.1.
Table 2.1 Air Quality Monitoring
Locations
Location I.D. |
Description |
AM1 |
Reservoir |
AM2 |
East Gate |
AM3 |
Ash Lagoon |
AM4 |
Tai Yuen Village |
It is agreed with EPD that continuous 24-hour TSP air quality monitoring
would be performed using TEOM continuous dust monitor and the MINIVOL Portable
Sampler at AM1,2&3 and AM4 respectively.
TEOM continuous dust monitors were used to carry out 1-hour TSP
monitoring at AM1, AM2 and AM3. Table 2.2 summarises the equipment used in dust monitoring.
Table 2.2 Air Quality Monitoring
Equipment
Equipment |
Model and Make |
24-hour sampling: Continuous TSP Dust Meter MINIVOL Portable Sampler 1-hour sampling: Continuous TSP Dust Meter |
TEOM continuous dust monitor Thermo Scientific AIRMETRICS TEOM continuous dust monitor Thermo Scientific |
2.4
Monitoring Parameters, Frequency and Duration
Table 2.3 summarises the monitoring parameters,
duration and frequency of air quality monitoring. The monitoring schedule for the reporting
month is shown in Appendix C.
Table 2.3 Air Quality
Monitoring Parameter, Duration and Frequency
Monitoring Stations |
Parameter |
Duration |
Frequency |
AM1 |
1-hour TSP |
1 |
3 hourly samples
every 6 days |
24-hour TSP |
24 |
Once every 6 days |
|
AM2 |
1-hour TSP |
1 |
3 hourly samples
every 6 days |
24-hour TSP |
24 |
Once every 6 days |
|
AM3 |
1-hour TSP |
1 |
3 hourly samples
every 6 days |
24-hour TSP |
24 |
Once every 6 days |
|
AM4 |
24-hour TSP |
24 |
Once every 6 days |
2.5
Monitoring Procedures and Calibration Details
MINIVOL (24- hour TSP Monitoring):
Preparation
of Filter Papers
·
Visual inspection
of filter papers was carried out to ensure that there were no pinholes, tears
and creases;
·
The filter papers
were then labeled before sampling.
·
The filter papers
were equilibrated at room temperature and relative humidity < 50% for at
least 24 hours before weighing.
Field Monitoring
·
During collection
of the sampled filter paper, the information on the elapse timer was
logged. Site observations around the
monitoring stations, which might have affected the monitoring results, were
also recorded. Major pollution sources,
if any, would be identified and reported.
·
The post-sampling
filter papers were removed carefully from the filter holder and folded to avoid
loss of fibres or dust particles from the filter papers;
·
The filter holder
and its surrounding were cleaned;
·
A pre-weighed
blank filter paper for the next sampling was put in place and aligned
carefully. The filter holder was then
tightened firmly to avoid leakage;
·
The programmable
timer was set for the next 24 hrs sampling period;
·
The post-sampling
filter papers were equilibrated at room temperature and relative humidity <
50% for at least 24 hours before weighing.
TEOM continuous dust
monitor (24- hour TSP and 1- hour TSP Monitoring):
·
The following
parameters of the TEOM model dust meters are regularly checked to ensure proper
functionality:
o
Operation Mode;
o
Frequency of the
tapered element;
o
Main flow;
o
Bypass flow.
Maintenance
& Calibration
·
The monitoring
equipment and their accessories are maintained in good working conditions.
·
Monitoring
equipment is calibrated at monthly intervals.
Calibration details are shown in Appendix F.
All dust monitoring works were conducted on schedule. All monitoring data and graphical
presentation of the monitoring results are provided in Appendix
D. Key findings and observations are
provided below:
1-hour
TSP
No exceedance of 1-hour TSP Action/Limit Level was recorded in the
month.
24-hour
TSP
No exceedance of 24-hour TSP
Action/Limit Level was recorded in the month.
Continuous noise alarm
monitoring at Ash Lagoon/Ching Lam were carried out to calculate the noise contributed by the construction activities
at the two critical NSR’s, viz. Long Tsai Tsuen/Hung Shing Ye and the
school within the village of Tai Wan San Tsuen.
The impact monitoring data for construction noise were checked against
the limit levels specified in the
EM&A Manual. With the availability of the
construction noise permits, impact monitoring for the construction work during
the restricted hours was also carried out.
Section 3 presents the details of the construction noise permits.
The impact noise monitoring data were checked against the limit levels specified in the EM&A Manual. Appendix B shows the established Action/Limit Levels for
noise.
In accordance with the
EM&A manual, the identified noise monitoring locations of Ash Lagoon and
Ching Lam are shown in Figure 3.1.
The sound level meters used
for noise monitoring complied with International Electrotechnical Commission
Publications 651:1979 (Type 1) and 804:1985 (Type 1). The noise monitoring equipment used is shown
in Table 3.1.
Table 3.1 Noise Monitoring Equipment
Equipment |
Model |
Sound
level meters |
B&K 2250 |
Sound level calibrator |
B&K 4231 |
3.4
Monitoring
Parameters, Frequency and Duration
Continuous alarm
monitoring was carried out at Ash Lagoon and Ching Lam. The measurement
duration and parameter of noise monitoring were presented in Table 3.2 as
follows:
Table 3.2 Noise
Monitoring Duration and Parameter
Location |
Time Period |
Frequency |
Parameter |
Ash Lagoon Ching
Lam |
Day-time: 0700-1900 hrs on normal weekdays Evening-time & holidays: 0700-2300 hrs on holidays; and 1900-2300 hrs
on all other days Night-time: 2300-0700 hrs of next day |
Day-time: 30 minutes Evening-time & holidays: 5 minutes Night-time: 5 minutes |
30-min
LAeq 5-min LAeq 5-min LAeq |
3.5
Monitoring
Procedures and Calibration
Details
Monitoring
Procedures
Continuous Noise
Monitoring for Lamma Extension Construction
The measured noise levels (MNL's)
were collected at the
noise alarm monitoring stations at Ash Lagoon and Ching Lam. The notional
background noise levels (viz. baseline noise data at
Ash Lagoon and Ching Lam) were applied to correct the corresponding MNL's in 30-min/5-min LAeq.
A wind speed sensor was
installed at Station Building Rooftop.
The wind speed signal was used to determine whether the
data from Ash Lagoon and Ching Lam noise alarm monitoring stations were
affected. The instantaneous data was discarded in case the instantaneous wind speed exceeded 10 m/s. The 30-min/5-min LAeq
was considered valid only if the amount of valid data was equal to or above 70%.
Equipment
Calibration
The sound level meters
and calibrators were verified by the manufacturer or accredited laboratory. With the endorsement of the Independent
Environmental Checker, the enhancement of calibration of sound level meter at
the noise monitoring stations was implemented.
The monthly manual on-site calibration using sound level calibrator was
replaced by the daily auto charge injection calibration function of the sound
level meter. For additional quality
assurance, manual on-site calibration would still be conducted for the noise
monitoring stations once every 6 months.
The manual on-site calibrations for Ash Lagoon and Ching Lam noise
monitoring stations were carried out in May and September 2022 respectively. The next calibrations for the two corresponding
noise monitoring stations were scheduled in November 2022 and March 2023 respectively.
Continuous noise
monitoring was conducted at the two monitoring stations at Ash Lagoon and Ching
Lam.
All monitoring results and
their graphical presentations are provided in Appendix E. No
exceedance of noise Action/Limit Level was recorded in the month.
4.1
Review of
Environmental Monitoring Procedures
The environmental monitoring procedures were regularly reviewed by the Environmental Team. No modification to the existing monitoring
procedures was recommended.
4.2
Assessment of
Environmental Monitoring Results
Monitoring results for Air
Quality and Noise
The environmental
monitoring results for Air Quality and Noise in the reporting month presented
in Sections 2 and 3 respectively are summarized in Table 4.1.
Table 4.1 Summary
of AL Level Exceedances on Monitoring Parameters
Item |
Parameter
Monitored |
Monitoring
Period |
No. of Exceedances In |
Event/Action
Plan Implementation Status and Results |
||
Action
Level |
Limit Level |
|||||
Air |
||||||
1 |
Ambient TSP (24-hour) |
01/09/2022- 30/09/2022 |
0 |
0 |
|
|
2 |
Ambient TSP (1-hour) |
01/09/2022- 30/09/2022 |
0 |
0 |
|
|
Noise |
||||||
1 |
Noise level at the critical NSR’s predicted by the noise alarm monitoring system |
01/09/2022- 30/09/2022 |
0 |
0 |
|
|
Wastes generated from
this Project include inert construction and demolition (C&D) materials and
non-inert C&D materials. Inert
C&D materials comprise excavated materials and broken concrete. Non-inert
C&D materials comprise general refuse, metals and paper/ cardboard
packaging, plastics, chemical waste, etc.
Inert C&D material and
non-inert C&D material disposed of in September 2022 are shown in Table 4.2.
Table 4.2 Estimated Amounts of Waste in September 2022
Total Inert C&D Waste Materials |
Non-inert C&D Materials |
||
C&D Materials Recycled |
C&D Waste Disposed of at Landfill |
Chemical Waste |
|
0 Tonnes |
11.64 Tonnes |
120.79 Tonnes |
0 Litres |
The
monthly waste flow tables prepared by the contractors are attached in Appendix
K
EPD officials from Regional Office (South) visited
Lamma Power Station on 8/9/2022. There
was no adverse comment from EPD regarding the construction site.
Site audits were carried out by ET on a weekly basis to monitor environmental issues at the construction sites
to ensure that all mitigation measures were implemented timely and properly. The site audit
findings for the reporting month are summarized in Appendix
H. The
site conditions were generally satisfactory. All required mitigation measures were
implemented.
4.5
Status of
Environmental Licensing and Permitting
All
permits/licenses obtained for the project are summarised in Table 4.3.
Table 4.3 Summary of
Environmental Licensing and Permit Status
Description |
Permit No. |
Valid Period |
Highlights |
Status |
|
From |
To |
||||
Varied Environmental Permit |
EP-071/2000/D |
28/09/20 |
- |
The whole construction work site |
Valid |
Construction Noise Permit |
GW-RS0222-22 |
13/04/22 |
12/10/22 |
Construction site of Unit L12.
Operation of PME during restricted hours |
Valid |
Construction Noise Permit |
GW-RS0551-22 |
10/07/22 |
07/01/23 |
Construction site of Unit L12.
Operation of PME during restricted hours |
Valid |
Construction Noise Permit |
GW-RS0613-22 |
29/07/22 |
27/01/23 |
Civil and Building Works for Unit L12.
Operation of PME during restricted hours |
Valid |
Construction Noise Permit |
GW-RS0674-22 |
01/09/22 |
28/02/23 |
Power Block Facilities works for Unit L12. Operation of PME during restricted hours |
Valid |
WPCO Discharge Licence# |
WT00037613-2021 |
15/04/21 |
30/04/26 |
Civil and Building Works for No.5 C.W. Intake and Cable Bridge |
Valid |
WPCO Discharge Licence## |
WT00037665-2021 |
06/05/21 |
31/05/26 |
Civil and Building Works for Unit L12 |
Valid |
Registration of Chemical Waste Producer |
WPN5213-912-P2781-22 |
22/02/16 |
- |
Civil and Building Works |
Valid |
Registration of Chemical Waste Producer |
WPN5517-912-T2007-02 |
17/03/05 |
- |
E&M Equipment Installation and Maintenance |
Valid |
Waste Disposal Billing Account |
Account No.: 7038672 |
27/10/20 |
- |
Civil works for Unit L12 No.5 C.W. intake and cable bridge |
Valid |
Waste Disposal Billing Account |
Account No.: 7039272 |
08/01/21 |
- |
Civil and building works for Unit L12 |
Valid |
Waste Disposal Billing Account |
Account No.: 7041942 |
21/10/21 |
- |
E&M Erection of Power Block Facilities – L12 |
Valid |
Notes: # and ## - Water quality monitoring was carried out in August 2022
and the results of which would be reported separately by the contractor.
4.6
Implementation
Status of Environmental Mitigation Measures
Mitigation measures detailed in
the permits and
the EM&A Manual (Construction Phase) are
required to be implemented. An updated
summary of the Environmental Mitigation Implementation Schedule (EMIS) is presented in Appendix I.
4.7
Implementation
Status of Event/Action Plans
The Event/Action Plans extracted
from the EM&A Manual (Construction Phase) are
presented in Appendix G.
4.8
Implementation
Status of Environmental Complaint Handling Procedures
In September 2022, no complaint
in relation to the environmental impact of the construction activities was
received.
Table 4.4 Environmental Complaints Received in September
2022
Case Reference / Date, Time Received / Date, Time Concerned |
Descriptions / Actions Taken |
Conclusion
/ Status |
Nil |
N/A |
N/A |
Table
4.5 Outstanding Environmental
Complaints Carried Over
Case Reference / Date, Time Received / Date, Time Concerned |
Descriptions / Actions Taken |
Conclusion / Status |
Nil |
N/A |
N/A |
5.1
Key Issues for
the Coming Month
Key issues to be considered in
the coming month include:
Unit L12 Civil and Building Works
Noise Impact
·
To continue monitoring
the noise level during construction and to ensure compliance with the
CNP’s already obtained.
Air Impact
·
To monitor and review
the sufficiency of the dust suppression measures provided and increase the
resources accordingly if necessary.
Water Impact
·
To treat
wastewater in sedimentation pit and tanks before discharge and to ensure
compliance in accordance with the WPCO discharge licence already obtained.
Unit L12 Mechanical Erection
Noise
Impact
·
To continue monitoring
the noise level during construction and to ensure compliance with the
CNP’s already obtained.
·
To continue executing the preventive measures for
avoiding noise exceedance and keep monitoring/ reviewing the noise performance.
Air
Impact
·
To monitor and review the sufficiency of the dust
suppression measures provided and increase the resources accordingly if
necessary.
Unit L12 Electrical, Instrumentation & Control Erection
Noise
Impact
·
To continue monitoring
the noise level during construction and to ensure compliance with the
CNP’s already obtained.
·
To continue executing the preventive measures for
avoiding noise exceedance and keep monitoring/ reviewing the noise performance.
Air
Impact
·
To monitor and review the sufficiency of the dust
suppression measures provided and increase the resources accordingly if
necessary.
5.2
Monitoring
Schedules for the Next 3 Months
The tentative environmental monitoring schedules for the next 3
months are shown in Appendix C.
5.3
Construction
Program for the Next 3 Months
The tentative
construction programs for the next 3 months are shown in Appendix
JAppendix
J.
All monitoring work at designated
stations was performed as scheduled
satisfactorily. The environmental monitoring works and site inspection were performed as scheduled in the reporting month. All monitoring results were checked and
reviewed.
No Action/Limit level exceedance on 1-hour and 24-hour TSP level was recorded in the reporting month.
No Action/Limit level exceedance on noise was recorded in the reporting month.
Environmental mitigation measures recommended in the EM&A manual
for the construction activities were implemented in the reporting month. No complaint
in relation to the environmental impact of the construction activities was
received in the reporting month. No
prosecution was received for this Project
in the reporting period.
The environmental performance of the Project
was generally satisfactory.