Figure 1.1 Layout of Work Site
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
4.4 Status of Environmental Licensing and Permitting
4.5 Implementation Status of Environmental Mitigation Measures
4.6 Implementation Status of Event/Action Plans
4.7 Implementation Status of Environmental Complaint Handling Procedures
5.1 Status of Natural Gas supply
5.2 Key Issues for the Coming Month
5.3 Monitoring Schedules for the Next 3 Months
5.4 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 Locations
Table 3.2 Noise
Monitoring Equipment
Table 3.3 Noise
Monitoring Duration and Parameter
Table 4.1 Summary
of AL Level Exceedances on Monitoring Parameters
Table 4.2 Estimated
Amounts of Waste Generated in December 2002
Table 4.3 Summary
of Environmental Licensing
and Permit Status
Table
4.4 Environmental
Complaints / Enquiries Received in December 2002
Table
4.5 Outstanding
Environmental Complaints / Enquiries Received Before
List of figures
Figure
1.1 Layout
of Work Site
Figure
1.2 Cable
Route of Transmission System
Figure
1.3 Location of Dumping Area (from 12th June 2002)
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 December 2002
Appendix E Noise
Monitoring Results for December 2002
This is the twenty-first
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 December November 2002.
After successful completion of post-project
monitoring in September 2002, no further marine water quality monitoring for
the reclamation works would be required.
Besides, as there were no activities for the laying of the gas pipeline in the
reporting month, no water quality impact monitoring at the relevant stations
was carried out.
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 |
|
Site
Formation |
Rockfilling, seawall construction, sandfill compaction, piling of foundation
for link bridges and C.W. intake & outfall construction. |
|
Unit L9 |
Bored pipe
construction for piling foundation. |
|
Transmission
System |
No
construction activities. |
Environmental
Monitoring Works
One (1) air quality environmental monitoring work was rescheduled as shown in the following
table.
|
|
|
|
|
|
|
|
|
|
Air Quality
No exceedance
of Action and Limit levels for air
quality was recorded in the
month.
Noise
The hoarding works for the construction of transmission system
were completed on 11 May 2002. The
civil works would tentatively commence in early February 2003 2004.
As there was no construction work in this reporting month, manual noise
measurements for the construction of transmission
system was suspended.
Construction work for Lamma Extension was carried out during the
restricted hours including evening-time, holidays and night-time
under valid Construction Noise Permits.
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 Local Control Office visited Lamma Power Station on 19/12/2002. They inspected the Lamma Extension
Construction Site. 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. All required
mitigation measures were implemented.
As the commencement of construction works of Transmission
System had been deferred to early 2004, the weekly inspection for the site was suspended in the reporting month.
Environmental Licensing and Permitting
|
Description |
Permit No. |
Valid Period |
Issued To |
Date of Issuance |
|
|
From |
To |
||||
|
Varied Environmental Permit |
EP-071/2000/B |
13/07/01 |
- |
HEC |
13/07/01 |
|
Construction Noise Permit |
GW-UW0191-02 |
22/07/02 |
14/01/03 |
Contractor |
22/07/02 |
|
Construction Noise Permit |
GW-UW0262-02 |
10/09/02 |
09/03/03 |
Contractor |
10/09/02 |
|
Construction Noise Permit |
PP-UW0030-02 |
15/11/02 |
14/05/03 |
Contractor |
09/10/02 |
|
Construction Noise Permit |
GW-UW0374-02 |
01/12/02 |
31/05/03 |
Contractor |
28/11/02 |
|
Registration of Chemical Waste Producer |
WPN5213-912-G1050-01 |
01/06/02 |
- |
Contractor |
03/06/02 |
|
Dumping Permit |
EP/MD/03-002 |
12/06/02 |
11/12/02 |
Contractor |
|
|
Dumping Permit |
EP/MD/03-107 |
12/12/02 |
15/05/03 |
Contractor |
22/11/02 |
|
Waste Water Discharge Licence |
EP742/912/006414I |
10/06/02 |
30/06/07 |
Contractor |
10/06/02 |
|
Waste Water Discharge Licence |
EP742/912/006634I |
16/07/02 |
31/07/07 |
Contractor |
16/07/02 |
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 against 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:
Site Formation
-
to continue monitoring the noise level during construction and to
ensure compliance with the CNP’s already obtained;
-
to continue the preventive measures for noise exceedance and keep
monitoring/ reviewing the performance;
-
to
provide de-silting utilities for wastewater before discharge from the piling works;
-
to monitor and review the
sufficiency of the dust suppression measures provided and increase the
resources accordingly if necessary;
Transmission System
-
to closely monitor the construction
activities, if any, in order to avoid disturbance to the rare plants;
-
to provide temporary fire
fighting equipment for prevention of fire within the work sites;
Unit L9 Piling Foundation
-
to continue monitoring the
noise level during construction and to ensure compliance with the CNPs already
obtained;
-
to continue the preventive
measures for noise exceedance and keep monitoring/ reviewing the performance;
-
to spray water on the
ground and road surface to prevent dust emission;
-
to continue monitoring and
reviewing the emission of smoke from construction machines;
-
to recycle wastewater
during site investigation work.;
-
to implement the Waste
Management Plan.
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/B, 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. As the post-project marine water monitoring was successfully completed in September 2002, no further water quality monitoring for the reclamation works 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 new 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
December November 2002.
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 undertaken during the reporting month for site formation were rockfilling,
construction of seawall, sandfill compaction, piling foundation for link bridge
and C.W. intake & outfall construction. Construction activity for Unit L9 was the construction of bored
pile for piling foundation. There
was no construction activity for Unit L9’s associated transmission system. Layout plans for site formation and transmission
system are shown in Figure 1.1
and Figure 1.2 respectively. Uncontaminated dredged/excavated
materials arising from both the piling foundation work of
Unit L9 and Main & East Bridges were dumped at
the assigned location within the South Cheung Chau Spoil Disposal Area. Figure 1.3 shows the
dumping location in December November 2002.
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 |
|
Site Formation |
||
|
1 |
Rockfilling, Seawall Construction & Sandfill
Compaction |
Noise
-
General noise mitigation measures employed at all
work sites throughout the construction phase. Waste Management
-
Waste Management Plan submitted and implemented. Marine Ecology
- All construction related vessels approached the site from the designated route/channel to avoid possible disturbance to the finless porpoise. |
|
2 |
Piling Foundation for Link Bridge |
Water Quality
- De-silting system is installed to treat the wastewater before being discharged.
|
|
3 |
C.W. Intake & Outfall |
Noise
-
General noise mitigation measures implemented and
silenced type equipment deployed. |
Construction of Transmission System
|
||
|
4 |
No construction activities |
Terrestrial Ecology
- Special care and close monitoring to avoid disturbances to the rare plant species. - Temporary fire fighting equipment provided within the work area during construction. |
Construction of Unit L9 Piling Foundation
|
||
|
5 |
Bored Pile Construction for Piling Foundation |
Water Quality
- Wastewater is recycled during construction. Noise
- General noise mitigation measures implemented. Air
-
Dust suppression measures implemented. Waste Management
- Waste is sorted, stored & recycled. - Chemical waste is stored and collected. |
1.4 Summary of EM&A Requirements
The EM&A program requires environmental monitoring
for air, noise and water
quality. As the post-project marine
water monitoring was successfully completed in September 2002, no further water
quality monitoring for the reclamation works would be required. 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.
Figure 1.2 Cable
Route of Transmission System
Figure 1.3 Location of Dumping Area (from 12th June 2002)
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 |
Continuous 24-hour TSP air quality
monitoring was performed using the GS2310 High Volume Air Samplers (HVAS),
Partisol Model 2000 Sampler and the MINIVOL Portable Sampler at AM1&2, AM3
and AM4 respectively. TEOM Model
1400a 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: HVAS Sampler Partisol Air Sampler MINIVOL Portable Sampler 1-hour sampling: Continuous TSP Dust Meter |
Model GS2310 Anderson
Instruments Inc. Partisol Model
2000 Rupprecht &
Patashnick AIRMETRICS TEOM Model 1400a Rupprecht &
Patashnick |
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
24- hour TSP
Monitor:
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 labelled 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 flow record chart for the previous sampling was checked to see if there was any abnormality.
· 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;
· A new flow record chart was loaded into the flow recorder;
· The programmable timer was set for the next 24 hrs sampling period, ! 1/2 hr;
· The post-sampling filter papers were equilibrated at room temperature and relative humidity < 50% for at least 24 hours before weighing.
1- hour TSP Monitor:
· The following parameters of the TEOM model dust meters are regularly checked to ensure proper functionality:
o Mass concentration;
o Total mass;
o Frequency of the tapered element;
o Electrical noise;
o Main flow;
o Auxiliary 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.Appendix F.
24
hour TSP sampling at AM4 (Tai Yuen Village) on 7th November 2002 was void,
as the timer of MiniVol TSP sampler was found defective during the collection
of filter paper on 8th
November 2002. The defect was
immediately rectified on the same day.
A make-up TSP sampling was conducted on 9th
November 2002. Other than this incident,
d Dust monitoring was conducted as
scheduled in the reporting month. 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 5 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.
The hoarding works for the construction of transmission
system were completed on 11 May 2002. The civil works would tentatively commence in early February 2003 2004.
As there was no construction work in November December 2002, manual noise measurements
at Pak Kok Tsui residences was
suspended in this reporting month.
In accordance with the EM&A manual, the identified noise monitoring locations are listed in Table 3.1 and shown in Figure 3.1.
Table
3.1 Noise Monitoring
Locations
|
Purpose of noise monitoring |
Monitoring Location |
|
Lamma Extension |
Ash Lagoon |
|
Lamma Extension |
Ching Lam |
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 3.2.
Table 3.2 Noise Monitoring Equipment
|
Equipment |
Model |
|
Sound level meter |
Rion NA-27
and NL-31 |
|
Sound level calibrator |
Rion NC-74 |
3.4 Monitoring Parameters, Frequency and Duration
Continuous alarm monitoring of A-weighted Leq levels was
carried out at Ash Lagoon and Ching Lam.
The measurement duration and parameter of noise
monitoring were presented in Table 3.3 as
follows:
Table 3.3 Noise Monitoring Duration and
Parameter
|
Location |
Time Period |
Frequency |
Parameter |
|
Ash Lagoon Ching Lam |
Daytime: 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 |
Daytime: 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%.
When
calibrating the noise measuring equipment, all
observations around the monitoring stations, which might have affected
the monitoring results, were recorded.
Equipment Calibration
The sound level meters and calibrators have been verified
by the manufacturer or accredited laboratory. Equipment for continuous noise monitoring was calibrated at
site on a monthly basis. Calibration details are shown in Appendix G.
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, 3 and 4 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) |
01/12/02-31/12/02 |
0 |
0 |
|
|
|
2 |
Ambient TSP (1-hour) |
01/12/02-31/12/02 |
0 |
0 |
|
|
|
Noise |
||||||
|
1 |
Noise level at the critical NSR’s predicted by the noise alarm monitoring system |
01/12/02-31/12/02 |
0 |
0 |
|
|
|
2 |
Manual noise monitoring at the Pak Kok Tsui residences |
01/12/02-31/12/02 |
N/A |
N/A |
Hoarding works at Pak Kok Tsui were completed on
11/5/2002. Civil works would
tentatively commence in early |
|
Waste
Management Records
The estimated amounts of different types of waste
generated in December November 2002 are shown in Table 4.2.
Table
4.2 Estimated Amounts of Waste Generated
in December November 2002
|
Waste Type |
Examples |
Estimated
Amount |
|
Construction Waste |
Concrete Waste, Used formwork |
10 Ton |
|
General Refuse |
Domestic wastes collected on site |
492 |
|
Recycled Paper |
Domestic wastes collected on site |
7 kg |
|
Aluminum Cans |
Domestic wastes collected on site |
108 kg |
EPD officials from Local Control Office visited Lamma Power Station on 19/12/2002. They inspected the Lamma Extension
Construction Site. 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
conditions were generally satisfactory.
All required mitigation measures were implemented. The weekly site
inspection results are
attached in Appendix H.
As the commencement of construction works of Transmission
System had been deferred to early 2004, the weekly inspection for the site was suspended in the reporting month.
4.4 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/B |
13/07/01 |
- |
The whole construction work site. |
Valid |
|
Construction Noise Permit |
GW-UW0191-02 |
22/07/02 |
14/01/03 |
Operation of specified PME’s allowed during the restricted hours (07:00-23:00 on holidays and
19:00-23:00 on all other days) |
Valid |
|
Construction Noise Permit |
GW-UW0262-02 |
10/09/02 |
09/03/03 |
8 groups (A-H) of PME’s are assigned.
Only one group can be used. Group G and H shall not be operated
between 23:00 and 07:00 on next day. |
Valid |
|
Construction Noise Permit |
PP-UW0030-02 |
15/11/02 |
14/05/03 |
Percussive piling for Unit L9 piling foundation |
Valid |
|
Construction Noise Permit |
GW-UW0374-02 |
01/12/02 |
31/05/03 |
Operation of specified PME’s allowed during the
restricted hour (23:00-07:00 on next day). 2 groups of PME’s are assigned and only one group can be
used. |
|
|
Registration of Chemical Waste Producer |
WPN5213-912-G1050-01 |
01/06/02 |
- |
Unit L9 piling foundation work. |
Valid |
|
Dumping Permit |
EP/MD/03-002 |
12/06/02 |
11/12/02 |
Dumping at South Cheung Chau Disposal Area; Unit
L9 piling foundation work. |
|
|
Dumping Permit |
EP/MD/03-107 |
12/12/02 |
15/05/03 |
Dumping at South Cheung Chau Disposal Area; Unit
L9 piling foundation work. |
Issued on 22/11/02 |
|
Waste Water Discharge Licence |
EP742/912/006414I |
10/6/02 |
30/6/07 |
Socketted H-piling works |
Valid |
|
Waste Water Discharge Licence |
EP742/912/006634I |
16/7/02 |
31/7/07 |
Bored piling works |
Valid |
4.5
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.
4.6 Implementation Status of Event/Action Plans
The Event/Action Plans for air quality and noise extracted from the EM&A Manual (Construction Phase) are presented in Appendix G.
4.7 Implementation Status of Environmental Complaint Handling Procedures
In December November 2002, no complaint against
the construction activities was received.
Table 4.4 Environmental
Complaints / Enquiries Received in December November 2002
|
Case Reference / Date, Time Received / Date, Time Concerned |
Descriptions /Actions Taken |
Conclusion / Status |
|
Nil |
N/A |
N/A |
Table 4.5 Outstanding
Environmental Complaints / Enquiries Received Before
|
Case Reference / Date, Time Received / Date, Time Concerned |
Descriptions /Actions Taken |
Conclusion / Status |
|
Nil |
N/A |
N/A |
5.1
Status
of Natural Gas supply
Based on current project schedule, HEC anticipates there is no delay in the supply of natural gas.
5.2 Key Issues for the Coming Month
Key issues to be considered in the coming month include:
Site
Formation
Noise Impact
· To continue monitoring the noise level during construction and to ensure compliance with the CNP’s already obtained.
· To continue the preventive measures for noise exceedance and keep monitoring/ reviewing the performance.
Water Impact
·
To provide de-silting utilities for wastewater before
discharge from the piling works.
Air Impact
· To monitor and review the sufficiency of the dust suppression measures provided and increase the resources accordingly if necessary.
Transmission
System
Terrestrial Ecology Impact
· To closely monitor the construction activities, if any, in order to avoid disturbance to the rare plants;
· To provide temporary fire fighting equipment for prevention of fire within the work sites.
Unit L9 Piling Foundation
Noise Impact
· To continue monitoring the noise level during construction and to ensure compliance with the CNPs already obtained.
· To continue the preventive measures for noise exceedance and keep monitoring/ reviewing the performance.
Air Impact
· To spray water on the ground and road surface to prevent dust emission.
· To continue monitoring and reviewing the emission of smoke from construction machines.
Water Impact
· To recycle wastewater during site investigation work.
Waste Management
·
To implement the Waste Management Plan.
5.3 Monitoring Schedules for the Next 3 Months
The hoarding works for the construction of transmission
system at Pak Kok Tsui were completed on 11/5/2002. The civil works would tentatively commence in early February 2003 2004. As there was no construction work during the period from
12/5/2002 to end November December 2002,
the manual noise monitoring at Pak Kok Tsui was suspended in November December 2002.
With the completion of post-project monitoring, no further marine water quality monitoring for the reclamation works is required.
The tentative environmental monitoring schedules for the next 3 months are shown in Appendix C.
5.4 Construction Program for the Next 3 Months
The tentative construction program for the next 3 months is shown in Appendix J.
One
24-hour
TSP
monitoring work was rescheduled due to failure of the monitoring
equipment. Other than this, a All environmental monitoring 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 against 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.
