Agreement No. CE 20/2004(EP) North East
New Territories (NENT) Landfill Extension Quarterly Environmental Monitoring and Audit
Report (No. 6) – April to June 2024 |
Contents
12 Environmental Non-conformance
13 Implementation Status on Environmental Mitigation
Measures
Figure
Location of the Project Site |
|
Impact Monitoring Locations |
|
Landfill Gas Monitoring Locations |
Appendix
Construction Programme & Construction Site Activities |
|
Project Organization Chart & Management Structure |
|
Detail Status of FEP & EP Submission |
|
Graphical Presentations |
|
Notification of Environmental Quality Limits Exceedance |
|
Waste Flow Table |
|
Environmental Mitigation Implementation Schedule (EMIS) |
|
Mitigation Measures of Cultural Landscape Features |
|
Cumulative complaint / enquiry log and Summaries of complaints and enquiry |
Aurecon Hong Kong Limited (Aurecon) was appointed to undertake the
role of Environmental Team (ET) and carry out Environmental Monitoring and
Audit for the North East New Territories (NENT) Landfill Extension.
The
construction phase and EM&A programme of the Project commenced on 1 December
2022.
This
6th Quarterly EM&A Report presents the EM&A works conducted
from 1 April to 30 June 2024 in accordance with the EM&A Manual.
Summary
of Construction Works undertaken during Report Period
The major construction works undertaken during the reporting period include:
Reporting Month |
|||
Apr 2024 |
May 2024 |
Jun 2024 |
|
- Material
loading and unloading, site traffic |
✓ |
✓ |
✓ |
- Construction of site buildings |
✓ |
✓ |
✓ |
- Site
clearance |
✓ |
✓ |
✓ |
- Installation of
permanent fencing |
✓ |
✓ |
✓ |
- Site
formation |
✓ |
✓ |
✓ |
- Tree
felling |
✓ |
✓ |
✓ |
Shotcreting (Permanent
and Temporary) |
✓ |
✓ |
✓ |
Soil Nail Installation |
✓ |
✓ |
✓ |
Environmental
Exceedance
Air Quality, Noise, Surface Water Quality
& Landfill Gas Monitoring
No exceedance of the Action and Limit
Levels were recorded at designated monitoring stations during the reporting
period.
Environmental
Non-conformance/Compliant/Summons and Prosecution
No
non-conformance event, summons/prosecutions were recorded and received in this
reporting period.
One
complaint on 9 May 2024 was recorded and received in this reporting period.
1.1. Background
1.1.1. The North East New Territories Landfill Extension (the NENTX Project) is located adjacent to the existing North East New Territories (NENT) Landfill at Ta Kwu Ling. The extension site is located in a valley covering mainly the existing NENT Landfill Stockpile and Borrow Area that was formed to the east of the existing landfill as part of the original site development of the landfill, and layout plan shown in Figure 1.
1.1.2. The NENTX is a designated project. The Environmental Impact Assessment (EIA) Report (AEIAR-111/2007) and an Environmental Monitoring and Audit Manual were approved on 20 September 2007. The project is governed by an Environmental Permit (EP) (EP-292/2007) which was granted on 26 November 2007. A further of EP (FEP) was applied and the FEP (FEP-01/292/2007) was subsequently granted on 28 April 2022. Another further of EP (FEP-02/292/2007) was subsequently granted on 23 August 2023.
1.1.3. In accordance with the requirements specified in Section 2.7 to 2.11 and Section 12.3 of the approved Environmental Monitoring and Audit (EM&A) Manual, Quarterly EM&A report should be submitted to the Director of Environmental Protection (DEP) within 10 working days after the end of the reporting quarter. The submissions shall be certified by the Environmental Team (ET) Leader and verified by the Independent Environmental Checker (IEC).
1.1.4. The construction phase and EM&A programme of the Project commenced on 1 December 2022.
1.2. Nature, Scale and Scope of the captioned Designated Project
1.2.1 The Nature, Scale and Scope of the captioned Designated Project is presented in Table 1-1.
Table 1-1 Nature, Scale and Scope of the captioned
Designated Project
Item(s) |
Content |
Nature of Designated
Project |
Construction and operation of a landfill for waste as defined in the
“Waste Disposal Ordinance” (Cap. 354) |
Scale and Scope of Designated Project |
The Project mainly consists of the followings: - Construction and operation of a landfill extension of about 70 hectares
with a target void space of at least 19 million cubic metres on the eastern
side of the existing NENT Landfill, including the followings: - i.
Site formation and
preparation; ii. Installation of liner system; iii. Installation of leachate collection, treatment and disposal facilities; iv. Installation of gas collection, utilization and management facilities; v. Utilities provisions and drainage diversion; vi. Landfilling operation; vii. Restoration and aftercare in subsequent stages; and viii.
Measures to mitigate
environmental impacts as well as environmental monitoring and auditing to be
implemented. |
1.3. Purpose of this Report
1.3.1. This is the 6th Quarterly EM&A Report which summarises the impact monitoring results and audit findings for the EM&A programme during the reporting period from 01 April to 30 June 2024.
1.4.1. The structure of the report is as follows:
-
details the background, purpose and structure of the report.
Section 2 – Project Information
-
summarises background and scope of the Project, site description, project
organization and contact details, construction programme, the construction
works undertaken and the status of Environmental Permit(s)/License(s) during
the reporting period.
Section 3 – Air Quality Monitoring
Section 5 – Water Quality Monitoring
Section 6 – Waste Management
Section
7 – Landfill Gas Monitoring
Section 8 – Landscape and Visual
Section 10 – Ecological Monitoring
Section 11 – Site Inspection and Audit
Section 12 – Environmental Non-Conformance
Section 13 – Implementation Status on Environmental Mitigation Measures
Section 14 – Conclusion
2.1.1. A summary of the major construction activities undertaken in this reporting period is shown in Table 2-1. Construction programme and detailed construction activities are illustrated in Appendix A.
Table 2-1 Major
Construction Activities Undertaken in the Reporting Period
Construction Activities
Undertaken |
Reporting Month |
||
Apr 2024 |
May 2024 |
Jun 2024 |
|
- Material
loading and unloading, site traffic |
✓ |
✓ |
✓ |
- Construction of site
buildings |
✓ |
✓ |
✓ |
- Site
clearance |
✓ |
✓ |
✓ |
- Installation of
permanent fencing |
✓ |
✓ |
✓ |
- Site
formation |
✓ |
✓ |
✓ |
- Tree
felling |
✓ |
✓ |
✓ |
Shotcreting (Permanent
and Temporary) |
✓ |
✓ |
✓ |
Soil Nail Installation |
✓ |
✓ |
✓ |
2.2. Project Organization & Management Structure
2.2.1. The Project Organization Chart & Management Structure are shown in Appendix B. The key personnel contact information is summarized in Table 2-2.
Table 2-2 Contact Information of Key Personnel
Party |
Name |
Contact
Number |
Contractor (Veolia Hong Kong Holding Ltd.) |
Mr. Matt Choy |
2902 5296 |
Independent
Environmental Checker (IEC) (Meinhardt
Infrastructure and Environment Ltd.) |
Ms. Claudine Lee |
2859 5409 |
Environmental Team Leader
(ETL) (Aurecon Hong Kong
Limited) |
Mr. Fredrick Leong |
3664 6888 |
2.3. Status of Submission required under the FEP & EP during reporting period
2.3.1. The status of statutory environmental compliance with the EP conditions under the EIAO, submission status under the FEP & EP during reporting period are presented in Table 2-3. The detail status of statutory environmental compliance with the EP conditions under the EIAO, submission status under the FEP & EP for NENTX project are shown in Appendix C.
Table 2-3 Status of Submissions required under the FEP
& EP during reporting period
EP
Condition |
Submission / Measures |
Status |
|
2.1 |
2.3 |
Management
Organization of Main Construction Companies |
Submitted |
2.2 |
2.4 |
Setting up
of Community Liaison Group |
Community Liaison Group
was set up. |
2.3 |
2.5 |
Submission
of EM&A Manual |
Submitted |
2.5 |
2.7 |
Submission
of Vegetation Survey (Transplantation Proposal) |
Submitted |
2.6 |
2.8 |
Submission
of translocation proposal |
Submitted |
2.7 |
2.9 |
Submission
of Transplantation Report and Post-Transplantation Monitoring |
Submitted |
2.8 |
2.10 |
Submission
of Translocation Report and Post-Translocation Monitoring |
Submitted |
2.9 |
2.11 |
Submission of Detailed Landfill Gas Hazard
Assessment Report |
Submitted |
2.10 |
2.12 |
Submission
of Waste Management Plan |
Submitted |
3.2 |
3.2 |
Submission
of Baseline Monitoring Report |
Submitted |
3.3 |
3.3 |
Submission of Monthly
EM&A Report |
17th report (Apr
2024) 18th report (May
2024) 19th report (Jun
2024) |
2.4. Status of Environmental Approval Document
2.4.1. A summary of the relevant valid permits, licences, and/or notifications on environmental protection for this Project since the granting of the EP is presented in Table 2-4.
Reference |
Expiry
Date |
Remark |
|
Environmental Permit (EP) |
EP-292/2007 |
Throughout the Contract |
Permit granted on 26 November 2007 |
Further Environmental Permit (FEP) |
FEP-01/292/2007 |
Throughout the Contract |
Permit granted on 28 April 2022 |
Further Environmental Permit (FEP) |
FEP-02/292/2007 |
Throughout the Contract |
Permit granted on23 August 2023 |
Notification of Construction
Works as required under Air Pollution Control (Construction Dust) Regulation |
479809 |
Throughout the Construction
Phase |
Notified on 13 May 2022 |
Registration of Waste Producer
under Waste Disposal Ordinance |
7043692 |
Throughout the Contract |
Registered on 13 April 2022 |
Registration as Chemical Waste
Producer |
5213-642-P1034-18 |
Throughout the Contract |
Registered on 11 July 2022 |
Construction Noise Permit |
GW-RN0240-24 |
7 June 2024 |
Permit granted on 1 March 2024 |
Construction Noise Permit |
GW-RN0702-24 |
18 September 2024 |
Permit granted on 17 June 2024 |
Effluent Discharge License
under Water Pollution Control Ordinance |
WT00042301-2022 |
31 October 2027 |
Permit granted on 18 October 2022 Variation
of Licence (Permit granted on 7 February 2023) |
3.1.1.1
In accordance with the EM&A Manual, 1-hr & 24-hr Total Suspended
Particulates (TSP) levels should be measured at the designated air quality
monitoring stations in every 6 days to ensure that any deteriorating air
quality could be readily detected, and timely action shall be undertaken to
rectify such situation. For 1-hr TSP monitoring, the sampling frequency of at
least three times in every six-days should be undertaken when the highest dust
impact occurs. The specific time to start and stop the 24- hr TSP monitoring
shall be clearly defined for each location.
3.1.2 Monitoring Parameters, Frequency and Location
3.1.2.1
According to the EM&A
Manual, three monitoring stations namely AM(D)1, AM(D)2 and AM(D)3 are selected
for the impact monitoring.
3.1.2.2 A baseline monitoring plan has been submitted to IEC and EPD on 31 May 2022 including the proposal with justification of change of monitoring locations. Due to limited access to the original monitoring locations at AM(D)1, AM(D)2 and AM(D)3, the adjusted stations at AM1, AM2 and AM3 were agreed with IEC prior to the baseline and impact monitoring. The locations of adjusted dust monitoring locations are shown in Figure 2.
3.1.2.3 The locations of dust monitoring stations are shown in Table 3-1. The monitoring parameters, frequency and duration are shown in Table 3-2.
Table 3-1 Locations of Dust Monitoring Stations
Monitoring Station |
Representative for |
Monitoring Parameters |
|
AM1 |
Tung Lo Hang |
1-hr and
24-hr TSP |
|
AM2 |
Heung Yuen Wai |
1-hr and 24-hr TSP |
|
AM3 |
Wo Keng Shan Tsuen |
1-hr and
24-hr TSP |
Remarks:
The contractor passed
correspondence including original monitoring locations specified on the Approved
EM&A Manual to the village representatives on 26 April 2022. After a
meeting with Ta Kwu Ling District Rural Committee (RC) Chairman, representative
from the RC and a few villagers on 1 May 2022, all the Village Heads of Wo Keng
Shan Tsuen, Heung Yuen Wai and Lin Ma Hang verbally refused to accept our
proposal for installation of dust and / or noise monitoring equipment within or
next to their villages, for the baseline & impact monitoring.
AM(D)1 Tung Lo
Hang, AM(D)2 Heung Yuen Wai, AM(D)3 Wo Keng Shan Tsuen are the air monitoring
stations for the construction phase EM&A programme as identified in the
approved EM&A Manual for the Project. The access to Tung Lo Hang, Heung
Yuen Wai and Wo Keng Shan Tsuen were denied.
A search for alternative air monitoring locations (AM1, AM2 & AM3)
was carried out during the site visit.
The Baseline
Monitoring Plan has been submitted to IEC and EPD including the proposal of
change of monitoring locations on 31 May 2022. This arrangement was conducted
between baseline and impact monitoring and has been agreed by the Independent
Environmental Checker (IEC) and no comment received from EPD.
Due to the
adjustment of the location of AM(D)1, AM(D)2 & AM(D)3to AM1, AM2 & AM3,
the measured air quality levels at AM1, AM2 & AM3 would represent the air
quality levels at AM(D)1, AM(D)2 & AM(D)3.
Table 3-2 Dust
Impact Monitoring Parameters, Frequency and Duration
Monitoring
Station |
Parameter |
Frequency and Duration |
AM1, AM2, AM3 |
1-hr TSP |
At least 3 times per 6 days |
24-hr TSP |
1 time per 6 days |
3.1.3.1 The impact dust monitoring results are summarized in Table 3-3 and Table 3-4. The graphical presentations of monitoring data are presented in Appendix D.
Month |
Average
1-hr TSP Concentration, µg/m³ (Range) |
||
Dust Monitoring Station |
|||
AM1 |
AM2 |
AM3 |
|
Apr 2024 |
27 (20 – 33) |
48 (40 – 53) |
55 (50 – 60) |
May 2024 |
24 (20 – 31) |
44 (39 – 51) |
49 (39 – 56) |
Jun 2024 |
25 (19 – 36) |
43 (38 – 52) |
51 (40 – 61) |
Action Level |
>285 |
>279 |
>285 |
Limit Level |
>500 |
Month |
Average
24-hr TSP Concentration, µg/m³ (Range) |
||
Dust Monitoring Station |
|||
AM1 |
AM2 |
AM3 |
|
Apr 2024 |
90 (70 – 125) |
122 (107 – 137) |
122 (110 – 131) |
May 2024 |
115 (92 – 137) |
127 (116 – 138) |
118 (95 – 135) |
Jun 2024 |
90 (71 – 122) |
107 (87 – 138) |
109 (91 – 143) |
Action Level |
>164 |
>152 |
>163 |
Limit Level |
>260 |
3.1.3.2 The Summary of Impact 1-hr & 24-hr TSP Exceedance are shown in Table 3-5.
Dust
Monitoring Station |
AM1 |
AM2 |
AM3 |
||||
Level
Exceedance Parameters |
Action
Level |
Limit
Level |
Action
Level |
Limit
Level |
Action
Level |
Limit
Level |
|
1-hr TSP |
Exceedance Date |
- |
- |
- |
- |
- |
- |
Exceedance Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
24-hr TSP |
Exceedance Date |
- |
- |
- |
- |
- |
- |
Exceedance Count |
0 |
0 |
0 |
0 |
0 |
0 |
Remarks: * equal
to non-project related
3.1.3.3 No Action / Limit Level exceedance for 1-hr & 24-hr TSP impact monitoring at AM1, AM2 & AM3 was recorded during the reporting period. The Notification of Environmental Quality Limits Exceedances are presented in Appendix E.
3.1.4 Recommended Mitigation Measures
3.1.4.1 The recommended dust mitigation measures from EIA report are listed as followed:
• The contractor shall follow the procedures and requirements given in the Air Pollution Control (Construction Dust) Regulation.
• Dust emission from construction vehicle movement is confined within the worksites area.
• Watering facilities will be provided at every designated vehicular exit point.
• Good site practice is recommended during construction phase.
3.1.5.1 Should non-compliance of the criteria occur, action in accordance with the action plan in Table 3-6 shall be carried out.
Table 3-6 Event and
Action Plan for dust impact
Event |
ET |
IEC |
Contractor |
Exceedance of Action Level |
|||
Exceedance
for one sample |
• Identify source • Prepare Notification of Exceedance • Inform IEC and Contractor • Repeat measurement to confirm findings • Increase monitoring frequency to daily
if exceedance is due to the Project and continue until the monitoring results
reduce to below action level |
• Verify the Notification of Exceedance • Check monitoring data submitted by ET and
Contractor's working methods • Discuss with ET and Contractor on proposed remedial
measures |
• Rectify any unacceptable practice • Amend working methods if appropriate |
Exceedance for two or more consecutive samples |
• Identify source • Prepare Notification of Exceedance • Inform Contractor and IEC • Repeat measurements to confirm
findings •
Increase
monitoring frequency to daily if exceedance is due to the Project and continue
until the monitoring results reduce to below action level • Discuss with IEC for remedial action
required • Ensure remedial measures are properly
implemented • Continue monitoring at daily intervals
if exceedance is due to the Project • If no exceedance for 3 consecutive days,
cease additional monitoring |
• Verify the Notification of Exceedance • Check monitoring data submitted by ET
and Contractor's working methods • Discuss with ET and Contractor on
proposed remedial measures • Review with analysed results submitted
by ET • Review the proposed remedial measures
by Contractor • Supervise the implementation of
remedial measures |
• Submit proposals for remedial actions
to IEC within 3 working days of notification • Implement the agreed proposals • Amend proposal if appropriate |
Event |
ET |
IEC |
Contractor |
Exceedance of Limit Level |
|||
Exceedance
for one sample |
• Identify source • Prepare Notification of Exceedance • Inform IEC and Contractor • Repeat measurement to confirm findings •
Increase
monitoring frequency to daily if exceedance is due to the Project and
continue until the monitoring results reduce to below limit level • Assess effectiveness of Contractor's
remedial actions and keep EPD and IEC informed of the results |
• Verify the Notification of Exceedance • Check monitoring data submitted by ET and
Contractor's working methods • Discuss with ET and Contractor potential remedial
actions • Supervise the implementation of remedial measures |
• Take immediate action to avoid further exceedance • Submit proposals for remedial actions to IEC within
3 working days of notification • Implement the agreed proposals • Amend proposal if appropriate |
Exceedance for two or more consecutive samples |
•
Identify source •
Prepare Notification of Exceedance •
Inform IEC and EPD the causes and actions taken for the
exceedances •
Discuss with IEC for remedial action required •
Ensure remedial measures are properly implemented •
Assess effectiveness of Contractor’s remedial actions and keep
IEC, EPD and informed of the results •
Increase monitoring frequency to confirm findings •
If exceedance stops, cease additional monitoring |
•
Verify the Notification of Exceedance •
Check monitoring data submitted by ET and Contractor's working
methods •
Discuss amongst ET and Contractor on the potential remedial
actions. •
Review Contractor's remedial actions whenever necessary to
assure their effectiveness •
Supervise the implementation of remedial measures |
•
Take immediate action to avoid further exceedance •
Submit proposals for remedial actions to IEC of notification •
Implement the agreed proposals •
Resubmit proposals if problem still not under control •
Stop the relevant activity of works until the exceedance is
abated |
4.1.1
In
accordance with the EM&A manual, noise impact monitoring shall be carried
out at 2 monitoring stations NM1 and NM2 once a week during normal construction
working hour (0700-1900 Monday to Saturday). The minimum logging interval shall
be 30 minutes with average of 6 consecutive Leq 5 mins. L10 and L90 shall also
be measured at 5 mins intervals.
4.2 Monitoring Locations, Parameters and Frequency
4.2.1
According
to the EM&A Manual, two monitoring stations namely NM1 and NM2 are selected
for the impact monitoring.
4.2.2
A baseline
monitoring plan has been submitted to IEC and EPD on 31 May 2022 including the
proposal with justification of change of monitoring locations. Due to limited
access to the original monitoring locations at NM1 and NM2, the adjusted
stations at NM1a and NM2a were agreed with IEC prior to the baseline and impact
monitoring. The noise monitoring locations are summarized in Table 4-1
and shown in Figure 2. The
frequency and duration are shown in Table 4-2.
Monitoring
Station |
Representative
for |
Type of
Measurement |
NM1a |
Wo Keng Shan Tsuen |
Free field |
NM2a |
Lin Ma Hang |
Free field |
The contractor passed correspondence including original
monitoring locations specified on the Approved EM&A Manual to the village
representatives on 26 April 2022. After a meeting with Ta Kwu Ling District
Rural Committee (RC) Chairman, representative from the RC and a few villagers
on 1 May 2022, all the Village Heads of Wo Keng Shan Tsuen, Heung Yuen Wai and
Lin Ma Hang verbally refused to accept our proposal for installation of dust
and / or noise monitoring equipment within or next to their villages, for the
baseline & impact monitoring.
NM1 Wo Keng Shan Tsuen & NM2 Lin Ma Hang are the noise
monitoring stations for the construction phase EM&A programme as identified
in the approved EM&A Manual for the Project. The access to Tung Lo Hang,
Heung Yuen Wai and Wo Keng Shan Tsuen were denied. A search for alternative noise monitoring
locations (NM1a & NM2a) was carried out during the site visit.
The Baseline Monitoring Plan has been submitted to IEC and
EPD including the proposal of change of monitoring locations on 31 May 2022. This
arrangement was conducted between baseline and impact monitoring and has been
agreed by the Independent Environmental Checker (IEC) and no comments received
from EPD. Noise measurement at NM1a & NM2a will be considered as free-field
and a correction of +3dB(A) would be made to the noise monitoring results.
Due to the adjustment of the location of NM1 & NM2 to
NM1a & NM2a, the measured noise levels at NM1 & NM2 would represent the
noise levels at NM1 & NM2.
Monitoring Station
|
Parameter
|
Frequency and
Duration
|
NM1a and NM2a |
LAeq
(30mins) average of
6 consecutive Leq (5min); L10 (5min) & L90 (5min) |
once a week during normal construction working hour (0700-1900
Monday to Saturday) |
4.3.1
The impact
noise monitoring results are summarized in Table 4-3. The graphical
presentations of monitoring data are presented in Appendix D.
Month |
Average
Leq, 30min, dB(A) (Range) |
|
Noise Monitoring Station |
||
NM1a |
NM2a |
|
Apr 2024 |
60.9 (60.1 – 62.5) |
54.1 (48.5 – 56.2) |
May 2024 |
60.6 (60.1 – 61.6) |
55.4 (48.1 – 57.4) |
Jun 2024 |
60.5 (59.3 – 61.3) |
57.5 (56.3 – 58.5) |
Action Level |
When one documented
complaint is received |
|
Limit Level |
>75dB(A) |
Remark:
(1)
* A correction of +3 dB(A) was made to the free field
measurements
(2)
If works are to be carried out during restricted hours, the
conditions stipulated in the construction noise permit issued by the Noise
Control Authority have to be followed.
4.3.2
No
exceedance of Action and Limit Levels of construction noise was recorded during
the reporting period. Therefore, there was no record of Notification of
Environmental Quality Limits Exceedance in the Appendix E.
4.3.3
No
particular observations are identified near the monitoring stations during the
monitoring period.
4.4 Recommended Mitigation Measures
4.4.1 The recommended noise mitigation measures from EIA report are listed as followed:
1. Use of good site practices to limit noise emissions by considering the following:
• Only well-maintained plant should be operated on-site and plant should be serviced regularly during the construction programme;
• Machines and plant (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum;
• Plant known to emit noise strongly in one direction, where possible, be orientated so that the noise is directed away from nearby NSRs;
• Silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works;
• Mobile plant should be sited as far away from NSRs as possible and practicable;
• Material stockpiles, mobile container site officer and other structures should be effectively utilised, where practicable, to screen noise from on-site construction activities.
2. Select “Quiet plants” which comply with the BS 5228 Part 1 or TM standards.
4.5.1
Should
non-compliance of the criteria occurs, action in accordance with the action
plan in Table 4-4 shall be carried out.
Table 4-4 Event and action plan for
construction noise monitoring
Event |
ET |
IEC |
Contractor |
Exceedance of Action Level |
•
Identify source, investigate the causes of exceedance •
Prepare Notification of Exceedance •
Inform IEC and Contractor •
Report the results of investigation to IEC, and Contractor •
Discuss with Contractor and IEC for formulate remedial measures •
Ensure remedial measures are properly implemented • Have additional monitoring if exceedance
is due to the Project. If exceedance stops, cease additional monitoring |
•
Verify the Notification of Exceedance •
Review the analysed results submitted by ET • Discuss with ET, and Contractor on the potential remedial
actions •
Review the proposed remedial measures • Supervise the implementation of remedial
measures |
•
Submit noise mitigation proposals to IEC •
Implement the agreed noise mitigation proposals |
Exceedance
of Limit Level |
•
Identify
source, investigate the causes of exceedance •
Prepare
Notification of Exceedance •
Inform IEC and
Contractor •
Repeat
measurements to confirm findings •
Discuss with
Contractor and IEC for remedial measures •
Ensure remedial
measures are properly implemented •
Assess
effectiveness of Contractor’s remedial actions and keep IEC and EPD informed
of the results •
Have additional
monitoring if exceedance is due to the Project. If exceedance stops, cease
additional monitoring |
•
Verify the
Notification of Exceedance •
Review the
analysed results submitted by ET • Discuss
with ET, and Contractor on the potential remedial actions • Review the proposed remedial measures • Supervise
the implementation of remedial measures |
• Take
immediate action to avoid further exceedance • Submit
proposals for remedial actions to IEC of notification • Implement
the agreed proposals • Resubmit
proposals if problem still not under control • Stop
the relevant portion of works as determined by project proponent until the
exceedance is abated. |
5.1.1.1
In
accordance with the EM&A manual, groundwater quality monitoring shall be
carried out at least once per month at the 35 designated groundwater monitoring
locations (i.e ED1 to ED35). Based on the existing construction programme, site
clearance and site formation works for future landfilling area are in progress.
The groundwater monitoring locations ED1 to ED35 will be installed after the
site formation work of the landfilling area. No
groundwater monitoring is required before the completion of site formation work
of the landfilling area.
5.2.1.1
In
accordance with the EM&A manual, impact surface water quality monitoring
was carried out at the two designated surface water discharge points (i.e WM1
and WM2) for once per month from commencement of construction works of the
Project.
5.2.2 Monitoring Locations, Parameters and Frequency
5.2.2.1
Impact
surface water monitoring was carried out at WM1 and WM2. The monitoring
locations are indicated in Table 5-1 and Figure 2.
5.2.2.2
The
monitoring parameters, frequency and duration of surface water quality
monitoring are summarized in Table 5-2.
Table 5-1 Surface water quality monitoring locations
Monitoring Station
|
Location
|
Coordinates (HK Grid)
|
|
Easting
|
Northing
|
||
WM1 |
Upstream of Lin Ma Hang River |
836665 |
845020 |
WM2 |
Ping Yuen River |
835592 |
844186 |
GR3* |
Ping Yuen River |
835361 |
844134 |
“*” The monitoring location only conducted based on the environmental
complaint.
Table 5-2 Surface water quality monitoring Parameters, Frequency and
Duration
Parameter
|
Frequency
|
pH, Electrical conductivity, DO,
Turbidity, SS, Alkalinity, COD, BOD5, TOC, Ammonia-nitrogen, TKN,
Nitrate, Sulphate, Sulphite, Phosphate, Chloride, Sodium, Mg, Ca, K, Fe, Ni,
Zn, Mn, Cu, Pb, Cd, Coliform Count, Oil and Grease |
Once per month |
5.2.3.1
The summary of monitoring results is presented
in Table 5-3 & Table 5-4. Detailed graphical presentations at
each monitoring station of surface water quality (DO, SS and Turbidity) at the
monitoring stations are given in Appendix
D.
Table 5-3 Summary of Impact Surface Water Monitoring Results at WM1
Monitoring Parameter(s) |
Monitoring
Station WM1 |
||||
Monitoring Results |
Action Level |
Limit Level |
|||
Apr 2024 |
May 2024 |
Jun 2024 |
|||
pH |
6.0 |
6.9 |
6.5 |
>7.7 |
>7.8 |
DO in mg/L |
8.1 |
8.5 |
8.2 |
<7.4 |
<4 |
Turbidity in NTU |
3.0 |
7.1 |
4.2 |
>9.2 |
>9.5 |
Electrical Conductivity in μS/cm |
92 |
47 |
56 |
--- |
--- |
SS in mg/L |
2.0 |
2.9 |
3.5 |
>9.7 |
>11.4 |
Alkalinity |
5 |
9 |
4 |
--- |
|
COD |
10 |
9 |
7 |
||
BOD5 |
<2 |
<2 |
2.0 |
||
TOC |
2 |
2 |
4 |
||
Ammonia-nitrogen |
0.06 |
0.02 |
0.12 |
||
TKN |
0.3 |
0.3 |
1.0 |
||
Nitrate |
0.05 |
0.05 |
0.04 |
||
Sulphate |
24 |
3 |
9 |
||
Sulphite |
<2 |
<2 |
<2 |
||
Phosphate |
<0.01 |
0.01 |
0.01 |
||
Chloride |
9 |
6 |
8 |
||
Sodium |
10800 |
6630 |
8400 |
||
Mg |
820 |
400 |
460 |
||
Ca |
5910 |
2440 |
3000 |
||
K |
620 |
570 |
870 |
||
Fe |
570 |
220 |
290 |
||
Ni |
<1 |
<1 |
1.0 |
||
Zn |
18 |
<10 |
32 |
||
Mn |
105 |
24 |
26 |
||
Cu |
2.0 |
2.0 |
5.0 |
||
Pb |
<1 |
<1 |
1.0 |
||
Cd |
<0.2 |
<0.2 |
<0.2 |
||
Coliform Count |
4200 |
4400 |
6200 |
||
Oil and Grease |
<5 |
<5 |
<5 |
“TBC” equal to To Be Confirm
Monitoring Parameter(s) |
Monitoring
Station WM2 |
||||
Monitoring Results |
Action Level |
Limit Level |
|||
Apr 2024 |
May 2024 |
Jun 2024 |
|||
pH |
7.1 |
6.9 |
7.1 |
>7.6 |
>7.7 |
DO in mg/L |
8.0 |
8.8 |
8.7 |
<5 |
<4 |
Turbidity in
NTU |
74.6 |
17.1 |
8.6 |
>108.3 |
>108.9 |
Electrical Conductivity in μS/cm |
253 |
111 |
131 |
--- |
--- |
SS in mg/L |
67.6 |
13.8 |
5.1 |
>94.7 |
>94.7 |
Alkalinity |
66 |
28 |
37 |
--- |
|
COD |
14 |
6 |
8 |
||
BOD5 |
<2 |
<2 |
<2 |
||
TOC |
2 |
1 |
3 |
||
Ammonia-nitrogen |
0.16 |
0.03 |
0.07 |
||
TKN |
0.6 |
0.2 |
0.5 |
||
Nitrate |
0.90 |
0.30 |
0.29 |
||
Sulphate |
42 |
24 |
26 |
||
Sulphite |
<2 |
<2 |
<2 |
||
Phosphate |
<0.01 |
<0.01 |
<0.01 |
||
Chloride |
11 |
5 |
4 |
||
Sodium |
12300 |
5190 |
4950 |
||
Mg |
1660 |
890 |
1220 |
||
Ca |
34400 |
16200 |
20800 |
||
K |
6970 |
1980 |
2200 |
||
Fe |
3560 |
1030 |
520 |
||
Ni |
2 |
<1 |
<1 |
||
Zn |
40 |
11 |
75 |
||
Mn |
694 |
393 |
308 |
||
Cu |
4 |
1 |
2 |
||
Pb |
7 |
2 |
<1 |
||
Cd |
<0.2 |
<0.2 |
<0.2 |
||
Coliform Count |
4900 |
2100 |
5000 |
||
Oil and Grease |
<5 |
<5 |
<5 |
“TBC” equal to To
Be Confirm
5.2.3.2
The Summary of Impact Surface Water Quality
Exceedance are shown in Table 5-5.
Surface Water Quality Monitoring Station |
WM1 |
WM2 |
|||
Level Exceedance Parameters |
Action Level |
Limit Level |
Action Level |
Limit Level |
|
pH |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
DO |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
Turbidity |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
SS |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
Remarks: * equal to non-project related
5.2.3.3
No exceedance of Action and Limit Levels of
surface water monitoring was recorded during the reporting period. The
Notification of Environmental Quality Limits Exceedance is presented in Appendix E.
5.2.4 Recommended Mitigation Measure
5.2.4.1 The recommended surface water mitigation measures from EIA report are listed as followed:
• Channels (both temporary and permanent drainage pipes and culverts), earth bunds or sand bag barriers should be provided on site to direct stormwater to silt removal facilities.
• The overall slope of the site should be kept to a minimum to reduce the erosive potential of surface water flows.
• The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 1/94, which states that the retention time for silts and sediment traps should be 5 minutes under maximum flow conditions.
• All vehicles and plant should be cleaned before leaving a construction site to ensure no earth, mud, debris and the like is deposited by them on roads.
• Construction solid waste, debris and rubbish on site should be collected, handled and disposed of properly to avoid water quality impacts.
• Measures should be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system.
5.2.5.1
Should non-compliance of the criteria occurs,
action in accordance with the action plan in Table 5-6 shall be carried
out.
Table
5-6 Event and Action Plan for Water
Quality
Event |
ET |
IEC |
Contractor |
Action level being exceeded by one sampling day |
• Repeat in situ measurement to confirm
findings • Identify source(s) of impact • Prepare Notification of Exceedance • Inform IEC and Contractor • Check monitoring data, all plant,
equipment and Contractor’s working methods • Repeat measurement on next day of
exceedance |
• Verify Notification of Exceedance •
Check monitoring
data and Contractor’s working methods |
•
Rectify
unacceptable practice •
Amend working
methods if appropriate |
Action level being exceeded by two or
more consecutive sampling days |
•
Repeat in situ
measurement to confirm findings • Identify
source(s) of impact •
Prepare Notification
of Exceedance • Inform
IEC and Contractor •
Check
monitoring data, all plant, equipment and Contractor’s working methods • Discuss
with Contractor and IEC for remedial measures • Ensure
mitigation measures are implemented • Increase
the monitoring frequency to daily until no exceedance of Action level • Repeat measurement on next day of exceedance |
•
Verify Notification of
Exceedance • Check
monitoring data and Contractor's working method • Discuss
with ET and Contractor on possible remedial actions • Review
the proposed mitigation measures • Supervise
the implementation of mitigation measures |
• Submit
proposal of additional mitigation measures to IEC of notification • Implement
the agreed mitigation measures • Amend
proposal if appropriate |
Event |
ET |
IEC |
Contractor |
Limit Level being exceeded by one sampling day |
• Repeat in situ measurement to confirm
findings •
Identify
source(s) of impact • Prepare Notification of Exceedance •
Inform IEC and
Contractor; •
Check monitoring
data, all plant, equipment and Contractor's working methods •
Discuss
mitigation measures with IEC and Contractor • Ensure mitigation measure are implemented |
• Verify Notification of Exceedance •
Check monitoring
data submitted By ET and Contractor’s working method •
Discuss with ET
and Contractor on possible remedial actions •
Review the
proposed mitigation measures •
Supervise the
implementation of mitigation measures |
•
Critically review
the working method •
Rectify
unacceptable practice •
Take immediate
corrective actions to avoid further exceedance •
Submit proposal
of mitigation measures to IEC •
Implement the
agreed mitigation measures |
Limit level being exceeded by two or
more consecutive sampling days |
•
Repeat in situ
measurement to confirm findings • Identify
source(s) of impact •
Prepare
Notification of Exceedance • Inform
IEC, contractor and EPD • Check
monitoring data, all plant, equipment and Contractor's working methods • Discuss
mitigation measures with IEC and Contractor • Ensure
mitigation measure are implemented |
•
Verify Notification of
Exceedance • Check
monitoring data submitted by ET and Contractor’s working method • Discuss
with ET and Contractor on possible remedial actions • Review
the proposed mitigation measures • Supervise
the implementation of mitigation measures |
• Critically
review the working method • Rectify
unacceptable practice • Take
immediate corrective actions to avoid further exceedance • Submit
proposal of mitigation measures to IEC • Implement
the agreed mitigation measures • Resubmit
proposals if problem still not under control • Slow
down or to stop relevant activity until exceedance is abated |
6.1
Wastes generated from this Project include
inert construction and demolition (C&D) materials and non-inert C&D
materials. Non-inert C&D materials were made up of general refuse, steels
and paper/cardboard packaging materials. Steel materials generated from the
Project were also grouped into non-inert C&D materials as the 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 Appendix F.
6.2
The recommended waste management mitigation
measures from EIA report are listed as followed:
• Implement
a trip-ticket system to ensure that the movement of C&D materials are
properly documented and verified in accordance with DEVB TC(W) No. 6/2010.
• Concrete and masonry should be used as general fill and steel reinforcement bars can be used by scrap steel mills.
• Proper areas should be designated for waste segregation and storage wherever site conditions permit.
• Maximise the use of reusable steel formwork to reduce the amount of C&D material.
• Maintain temporary stockpiles and reuse excavated fill material for backfilling and reinstatement.
• On-site sorting and segregation facility of all type of wastes is considered as one of the best practice in waste management and hence, should be implemented in all projects generating construction waste.
• The sorted public fill and C&D waste should be properly reused.
• Excavated slope, stockpiled material and bund walls should be covered by tarpaulin until used in order to prevent wind-blown dust during dry weather, and to reduce muddy runoff during wet weather.
7.1 Monitoring Requirement during Construction
Monitoring for Construction
Works
· CH4: >10% Lower Explosion Limit (LEL);
· CO2: >0.5%; and
· O2: <18% by volume.
7.2.3 For excavation works deeper than 1m, measurements should be made:
• at ground surface prior to
excavation;
• immediately before any worker enters
the excavation;
• at the beginning of each working day
for the entire period the excavation remains open; and
• periodically through the working day
whilst workers are in the excavation.
7.2.4 For excavation between 300mm and 1m deep, measurements should be made:
• directly after the excavation
has been completed; and
• periodically whilst the excavation
remains open.
7.2.6 The locations of LFG monitoring locations during reporting period
are shown in Table 7-1. The Site formation layout plan is shown
in Figure 2 and the
Layout of LFG monitoring locations is presented in Figure 3.
Table 7-1 Locations of LFG Monitoring during reporting period
Monitoring Period |
Monitoring Location |
Type of
works |
Apr to Jun 2024 |
Portion A +50
mpD to 70 mpD Platform |
Excavation Works |
May 2024 |
Portion
B2/E1 |
7.3.1 The LFG monitoring was conducted at Portion A +50 mpD to 70 mpD Platform from April to June (conducted on working days) and Portion B2/E1 in May (conducted on working days). The LFG monitoring results are summarized in Table 7-2.
Table 7-2 Summary of LFG Monitoring Results
LFG Monitoring Station |
Monitoring Date |
Monitoring Parameter(s) |
|||
CH4 in % |
LEL in %/v |
CO2 in % |
O2 in % |
||
Average Monitoring Results (Range) |
|||||
Portion A +50 mpD
to 70 mpD Platform |
Apr 2024 |
0 |
0 |
0 |
20.1 (20.0 – 20.1) |
May 2024 |
0 |
0 |
0 |
20.1 (20.0 – 20.2) |
|
June 2024 |
0 |
0 |
0 |
20.1 (20.0 – 20.2) |
|
Portion B2/E1 |
May 2024 |
0 |
0 |
0 |
20.1 (20.0 – 20.2) |
Action Level |
>10% LEL |
--- |
>0.5%** CO2 |
<19% |
|
Limit Level |
>20% LEL |
--- |
>1.5% CO2 |
<18% |
* LEL: Lower Explosive
Limit - concentrations in air below which there is not enough fuel to continue
an explosion.
** This Limit Level of CO2
at 0.5% is set for reference only, assuming no CO2 emission from a
particular location.
7.3.2 No exceedance of Action and Limit Levels of LFG was recorded during the reporting period. The Notification of Environmental Quality Limits Exceedance is presented in Appendix E.
7.3.3 No effect that arose from the other special phenomena and work progress of the concerned site was noted during the current monitoring month.
7.4 Recommended Mitigation
Measures
7.4.1 The recommended landfill gas mitigation measures from EIA report are listed as followed:
• Special LFG precautions should be taken due to close proximity of NENT landfill extension site to existing landfill to avoid potential hazards of LFG exposure (ignition, explosion, asphyxiation, toxicity).
• Prominent safety warning signs should be erected on-site to alert all personnel and visitors of LFG hazards during excavation works.
• No smoking or burning should be permitted on-site.
• Prominent 'No smoking' and ‘No Naked Flames’ signs should be erected on-site.
• No worker should be allowed to work alone at any time in excavated trenches or confined areas on-site.
• Adequate fire fighting equipment should be provided on-site.
• Construction equipment should be equipped with vertical exhaust at least 0.6m above ground installed with spark arrestors.
• Electrical motors and extension cords should be explosion-proof and intrinsically safe for use on-site.
• ’Permit to Work' system should be implemented.
• Welding, flame-cutting or other hot works should be conducted only under ‘Permit to Work’ system following clear safety requirements, gas monitoring procedures and presence of qualified persons to supervise the works.
7.5 Event and Action Plan (EAP)
7.5.1 Should non-compliance of the criteria occur, action in accordance with the action plan in Table 7-3 shall be carried out.
Table 7-3 Action Plan for the monitoring during construction phase
Parameter |
Monitoring Result |
Action |
Oxygen (O2) |
Action Level <19% O2 |
Ventilate trench/void to restore O2
to >19% |
Limit Level <18% O2 |
Stop works Evacuate personnel/prohibit entry Increase ventilation to restore O2 to
>19% |
|
Methane (CH4) |
Action Level >10% LEL* |
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% |
** This Action Level of CO2
at 0.5% is set for reference only, assuming no CO2 emission from a
particular location.
Depending on the baseline
CO2 levels, the Action Level at a particular location will be
changed.
8.1.2 All relevant environmental mitigation
measures listed in the approved EIA Report and the EM&A Manual, and their
implementation status are summarised in Appendix G.
9.1.1 The
Mitigation measures for preservation of the cultural landscape
feature located within the project area was conducted before commencement of
construction of the project based on the requirement of Survey Report and
Mapping Records for Boulder Paths BP1 & 2 & Conditions of G2, G4, G5
G6, G7, G8, G14, G15, G25, G26 and G27 within NENTX.
9.1.2 The
survey and mapping works carried out on 25 April 2022 and the verification works carried out on 23 August
22 confirmed that both 2 boulder paths BP1 and BP2 are fall outside the site boundary and the
Project area.
9.1.3 All the
affected graves within the waste boundary have been removed in accordance with section
119(1) of the Public Health and Municipal Services Ordinance (Cap 132). Removal of the graves as
shown on Figure 2 attached to the FEP was proven by the visit of graves on 22 August 2022. All
the graves as shown on Figure 2 attached to the FEP were abandoned and removed
and no mitigation or preservation measures is necessary.
9.1.5 Implementation
of the mitigation measures such as permanent fencing to protect the boulder
path and setting up warning notices during construction phase of the Project
has been monitored through the regular site inspection/audit. The permanent
fencing locations are shown in Appendix
H. In case of any
presence of undiscovered grave during construction phase, AMO will be informed
as soon as possible.
10.1.1
The post-transplantation
monitoring had been
completed in October 2023. No further
post-transplantation monitoring will be conducted in accordance with the requirement of the approved Transplantation Proposal for Plant Species of Conservation
Importance (Rev.1).
10.1.2
The post-translocation monitoring had been
completed in July 2023. No further post-translocation monitoring will be
conducted in accordance with the requirements of the Revised Translocation
Proposal for the Endemic Freshwater Crab Somanniathelphusa zanklon.
10.1.3
The details of requirements, monitoring results
and site inspection with photos for the post-translocation monitoring and post-transplantation monitoring would be
reported separately.
10.1.4
The milestone of the ecological monitoring is
presented in Table 10-1. The softcopies of the submissions are
provided in https://www.nentx-ema.com/ep-submissions/.
Table 10-1 Milestone of the Ecological Monitoring
Type of Monitoring |
Monitoring Event No. |
Monitoring Date |
Post-transplantation Monitoring |
1st |
24 Nov 2022 |
2nd |
9 Dec 2022 |
|
3rd |
21 Dec 2022 |
|
4th |
13 Jan 2023 |
|
5th |
26 Jan 2023 |
|
6th |
8 Feb 2023 |
|
7th |
24 Feb 2023 |
|
8th |
20 Mar 2023 |
|
9th |
21 Apr 2023 |
|
10th |
12 May 2023 |
|
11th |
16 Jun 2023 |
|
12th |
18 Jul 2023 |
|
13th |
11 Aug 2023 |
|
14th |
15 Sep 2023 |
|
15th |
13 Oct 2023 |
|
Post-translocation
Monitoring |
1st
(Aug 2022) |
29 Aug 2022 |
2nd
(Sep 2022) |
28 Sep 2022 |
|
3rd
(Oct 2022) |
28 Oct 2022 |
|
4th
(Nov 2022) |
22 Nov 2022 |
|
5th
(Dec 2022) |
29 Dec 2022 |
|
6th
(Jan 2023) |
30 Jan 2023 |
|
7th
(Feb 2023) |
24 Feb 2023 |
|
8th
(Mar 2023) |
20 Mar 2023 |
|
9th
(Apr 2023) |
19 Apr 2023 |
|
10th
(May 2023) |
17 May 2023 |
|
11th
(Jun 2023) |
7 Jun 2023 |
|
12th
(Jul 2023) |
12 Jul 2023 |
11 Site Inspection and Audit
11.1.1
Site Inspection and audits were carried out by
ET on weekly basis to monitor the implementation of proper environmental
management practices and mitigation measures in the Project Site.
11.1.3
Details of observations and recommendations are
summarized in Table 11-1.
Table 11-1 Observations and Recommendations of Site
Audit
Parameter |
Date |
Observation
and Reminders |
Follow-up
Action Taken |
Air Quality |
02 Apr 2024 |
Observation: Unpaved main haul
road at SBA and Portion E3-1A are dry and fugitive dust were found. |
The Contractor was advised to increase the
frequency of watering to prevent dust dispersion. |
02 Apr 2024 |
Observation: Stockpiling of excavated materials at SBA without
covering impervious sheet were found. |
The Contractor was recommended that stockpiling
of excavated materials at SBA shall be covered by impervious sheet or
removed. |
|
08 Apr 2024 |
Observation: The section between the site entrance /
exit where located from main access road to Portion E3-1 without paving with
concrete, bituminous materials or hardcores and without wheel washing
facilities were found. |
The Contractor was recommended that the
section between the site entrance / exit where located from main access road
to Portion E3-1 and wheel washing facilities within 30m should be paved with
concrete, bituminous materials or hardcores. The wheel washing facilities
with high pressure water jet should be provided at the entrance / exit. |
|
15 April
2024 |
Reminder: The Contractor was reminded that the stockpiling
of dusty materials should be covered entirely by impervious sheeting at SBA
to prevent dust dispersion. |
|
|
29 Apr 2024 |
Observation: The exposed slope surface at Portion E4
shall be covered by tarpaulin sheets properly. |
The Contractor was advised to provide impervious
sheet to cover the exposed slope surface properly at Portion E4 for slope protection. |
|
13
May 2024 |
Observation: The activity of handing of bulk cement or dry PFA
shall be carried out at a totally enclosed system or facility at Portion
B2-E1. |
The Contractor was advised that the activity of
handing of bulk cement or dry PFA carried out in a totally enclosed system or
facility or placed in an area sheltered on the top and 3 sides to prevent
dust dispersion. |
Parameter |
Date |
Observation
and Reminders |
Follow-up
Action Taken |
Air Quality |
27 May 2024 |
Observation: Working area at Portion E3 is dry and
fugitive dust was observed. |
The Contractor was reminded to arrange for
watering regularly at the work sites of Portion E3 to ensure the work sites
are wetted and to prevent dust dispersion. |
27
May 2024 |
Observation: The generator at Portion B2-E1 without NRMM label
was observed. |
The Contractor was recommended that NRMM label
should be fixed and displayed on the generator at Portion B2-E1. |
|
11 June 2024 |
Observation: The stockpiling of dusty materials without
covering by impervious sheets properly is observed at SBA. |
The Contractor was advised that the stockpiling
of dusty materials should be covered properly and entirely by impervious
sheeting to prevent dust dispersion at SBA. |
|
24 June 2024 |
Reminder: The Contractor was reminded that the frequency of
water spraying should be increased under the sunny weather. |
|
|
Noise |
No specific observation was identified in the
reporting period. |
||
Water
Quality |
02 Apr 2024 |
Observation: Stockpiling of excavated materials at SBA without
covering impervious sheet were found. |
The Contractor was recommended that stockpiling
of excavated materials at SBA shall be covered by impervious sheet or
removed. |
|
2 Apr 2024 |
Reminder: The Contractor was reminded that the
precaution shall be taken with Appendix A2 of ProPECC PN 1/94 before, during
and after rainstorm. |
|
8
Apr 2024 |
|||
15 Apr 2024 |
|||
|
22
Apr 2024 |
Observation: The silt fence at SBA shall be maintained
properly to prevent sediment from entering the drainage system. |
The Contractor has been reminded to conduct
regular maintenance of the silt fence in each layer to prevent sediment from
entering the surface water drainage system. |
|
22 Apr 2024 |
Reminder: The Contractor was reminded that the
precaution shall be taken with Appendix A2 of ProPECC PN 1/94 before, during
and after rainstorm. |
|
|
29
Apr 2024 |
Observation: The exposed slope surface at Portion E4 shall be
covered by tarpaulin sheets properly. |
The Contractor was advised to provide impervious
sheet to cover the exposed slope surface properly at Portion E4 for slope
protection. |
Parameter |
Date |
Observation
and Reminders |
Follow-up
Action Taken |
Water Quality |
29 Apr 2024 |
Reminder: The Contractor was reminded that the
precautions should be taken in accordance with Appendix A2 of ProPECC PN
1/94, especially the removal of deposited silt at the sedimentation basins
and ponds of Portion E3-1 and E4. |
|
6
May 2024 |
Reminder: The Contractor was reminded that the precaution
shall be taken with Appendix A2 of ProPECC PN 1/94 before, during and after
rainstorm. |
|
|
13 May 2024 |
|||
13
May 2024 |
Reminder: The Contractor was reminded that the exposed
slope surfaces at Portion B2-E1 should be covered by tarpaulin. |
|
|
20 May 2024 |
Reminder: The Contractor was reminded that the
precautions should be taken in accordance with Appendix A2 of ProPECC PN
1/94, especially the removal of deposited silt at the sedimentation basins
and ponds of Portion E3-1 and E4. |
|
|
27
May 2024 |
Reminder: The Contractor was reminded that the precaution
shall be taken with Appendix A2 of ProPECC PN 1/94 before, during and after
rainstorm. |
|
|
27 May 2024 |
Reminder: The Contractor was reminded that the
temporary drainage system e.g. channel and earth bund should be provided and
protected properly at Portion E4 to direct stormwater to slit removal
facility. |
|
|
3
Jun 2024 |
Reminder: The Contractor was reminded that the precautions
should be taken in accordance with Appendix A2 of ProPECC PN 1/94, especially
the wet-sep operation. |
|
|
11 Jun 2024 |
|||
17
Jun 2024 |
|||
17 Jun 2024 |
Reminder: The Contractor was reminded that the
efficient silt fence should be maintained regularly at SBA. |
|
Parameter |
Date |
Observation
and Reminders |
Follow-up
Action Taken |
Water Quality |
24 Jun 2024 |
Reminder: The Contractor was reminded that the
precautions should be taken in accordance with Appendix A2 of ProPECC PN
1/94. |
|
24
Jun 2024 |
Reminder: The Contractor was reminded that the inspection
and maintenance for slope protective layer should be enhanced to ensure the
effectiveness of the slope surface protective layers. |
|
|
Waste and Chemical Management |
8 Apr 2024 |
Observation: The accumulation of C&D Materials and
General Refuse (i.e. food waste) were found on the floor at Portion E3-1 near
the rest area for workforce. |
The Contractor
was advised to provide the enclosed bins with clearly label near each the
rest area for workforce and the waste skip for collection of C&D
Materials should be provided at the designated storage area of Portion E3-1. |
8 Apr 2024 |
Observation: The chemical container without drip tray was
found at Portion E3-1. |
The
Contractor was advised to provide the drip tray under the chemical container. |
|
15 Apr 2024 |
Observation: Oil drums at SBA without chemical drip tray
and label was observed. |
The Contractor
was recommended to provide a chemical drip tray at SBA for storing and
placing the oil drums to prevent oil leakage and subsequent land
contamination, and the oil drums at SBA should be labelled in English and
Chinese. |
|
29 Apr 2024 |
Observation: The chemical containers at Portion E3-1 shall be
placed and stored in the chemical drip tray and included chemical label. |
The Contractor
was reminded to provide chemical drip tray for chemical storage at Portion
E3-1 to prevent chemical leakage and land contamination and should be
included chemical label. |
|
13 May 2024 |
Observation: General waste and C&D waste on the
floor was observed at Portion A and D. |
The Contractor
was reminded to provide and arrange sufficient waste skip and enclosed bins
for waste collection and storage at Portion A and D. |
|
20 May 2024 |
Observation: Rubbish bins shall be covered and enclosed, and
the waste skip shall be placed and designed in a flat area at Portion A. |
The Contractor was reminded that rubbish bin for
general waste collection should be covered and enclosed, and the waste skip
for C&D waste collection and storage should be placed properly in the
flat area to prevent water stagnation at Portion A. |
Parameter |
Date |
Observation
and Reminders |
Follow-up
Action Taken |
Waste and Chemical Management |
20 May 2024 |
Observation: Oil drum and chemical container at Portion A
without the drip tray and chemical label in chinses and English was observed. |
The Contractor
was recommended to provide chemical drip trays for chemical storage at
Portion A to prevent chemical leakage and land contamination, and to provide
chemical labels in Chinese and English. |
27 May 2024 |
Observation: The general waste at Portion E4 shall be
collected and stored in the enclosed rubbish bin. |
The Contractor was reminded to provide sufficient
enclosed rubbish bin for general waste collection and storage at Portion E4. |
|
27 May 2024 |
Observation: The chemical container without drip tray
was observed at Portion B2-E1. |
The Contractor
was reminded that the chemical container should be placed in the drip tray
properly at Portion B2-E1to prevent chemical leakage and land contamination. |
|
11 Jun 2024 |
Observation: The chemical containers without chemical drip
tray were observed at Portion A. |
The
Contractor was reminded
that the chemical containers should be placed and stored in the chemical drip
tray to prevent chemical leakage and land contamination at Portion A. |
|
11 Jun 2024 |
Observation: The chemical container without chemical
drip tray was observed at Portion A. |
The Contractor was reminded to provide chemical drip tray for placing chemical container
to prevent chemical leakage and land contamination. |
|
24 Jun 2024 |
Observation: A damaged chemical container and chemical
containers without drip tray were found at Portion A. |
The
Contractor was advised
that the chemical containers should be placed on the drip tray and the
damaged chemical containers should be handled properly to avoid the potential
contamination risk in the project site. |
|
Landscape and Visual Impact |
20 May 2024 |
Reminder: The Contractor
was reminded that the exposed slope surface at Portion A should be covered
with green netting after the excavation activity in order to reduce visual
impact. |
|
Permit
/ Licenses |
No specific observation was identified in the reporting
period. |
11.1.4 One general site inspection on 30 May 2024
was conducted by Environmental Protection Department-Regional
Office (North) (EPD-RNG).
12 Environmental Non-conformance
12.1 Summary of Monitoring Exceedance
12.1.1
No Action / Limit Level exceedance impact
monitoring was recorded at designated monitoring stations during the reporting period. The
Summary of Impact 1-hr & 24-hr TSP Exceedance are shown in Table 12-1.
Dust
Monitoring Station |
AM1 |
AM2 |
AM3 |
||||
Level
Exceedance Parameters |
Action
Level |
Limit
Level |
Action
Level |
Limit
Level |
Action
Level |
Limit
Level |
|
1-hr TSP |
Exceedance Date |
- |
- |
- |
- |
- |
- |
Exceedance Count |
0 |
0 |
0 |
0 |
0 |
0 |
|
24-hr TSP |
Exceedance Date |
- |
- |
- |
- |
- |
- |
Exceedance Count |
0 |
0 |
0 |
0 |
0 |
0 |
Remarks: * equal
to non-project related
Noise Monitoring
12.1.2
No exceedance of the Action and Limit Levels
was recorded at designated monitoring stations during the reporting period. The
Summary of Impact Noise Exceedance are shown in Table
12-2.
Noise
Monitoring Station |
NM1(a) |
NM2(a) |
|||
Level
Exceedance Parameters |
Action
Level |
Limit
Level |
Action
Level |
Limit
Level |
|
LAeq(30mins) |
Exceedance Date |
- |
- |
- |
- |
Exceedance Count |
0 |
0 |
0 |
0 |
Remarks: * equal to non-project related
Surface Water Quality Monitoring
12.1.3
No exceedance of Action and Limit Levels of
surface was recorded at designated monitoring stations during the reporting
period. The Summary of Impact Surface Water Quality Exceedance are shown in Table
12-3.
Surface Water Quality Monitoring Station |
WM1 |
WM2 |
|||
Level Exceedance Parameters |
Action Level |
Limit Level |
Action Level |
Limit Level |
|
pH |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
DO |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
Turbidity |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
SS |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
Remarks: * equal to non-project related
Landfill Gas Monitoring
12.1.4 No exceedance of the Action and Limit Levels for were recorded at designated monitoring stations during the reporting period. The Summary of Landfill Gas Exceedance are shown in Table 12-4.
Landfill Gas Monitoring Station |
Portion A +50 mpD to 70 mpD
Platform |
Portion B2/E1 |
|||
Level Exceedance Parameters |
Action Level |
Limit Level |
Action Level |
Limit Level |
|
CH4 |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
CO2 |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
|
O2 |
Exceedance Date |
- |
- |
- |
- |
Exceedance
Count |
0 |
0 |
0 |
0 |
Remarks: * equal to non-project related
12.2 Summary of Environmental Non-compliance
12.2.1 No non- compliance event was recorded during the
reporting period.
12.3 Summary of Environmental Complaint
12.3.1 1 environmental complaint was recorded during the
reporting period. The
cumulative statistics on environmental complaints are presented in Table 12-5.
Table 12-5
Cumulative Statistics on Environmental Complaints
Reporting Period |
Environmental Aspects |
|||||
Air
Quality |
Noise
|
Water
Quality |
Waste |
Ecology |
||
Apr 2024 |
Complaint Date |
- |
- |
- |
- |
- |
No. of Complaint |
0 |
0 |
0 |
0 |
0 |
|
May 2024 |
Complaint Date |
- |
- |
9 May 2024 |
- |
- |
No. of Complaint |
0 |
0 |
1 |
0 |
0 |
|
Jun 2024 |
Complaint Date |
- |
- |
- |
- |
- |
No. of Complaint |
0 |
0 |
0 |
0 |
0 |
|
Total during the reporting period |
0 |
0 |
1# |
0 |
0 |
|
Accumulate of project |
1 |
0 |
6(1* & 1#) |
0 |
0 |
Remarks: * equal to
non-project related after the investigation.
12.3.2 Cumulative complaint / enquiry log, Summaries of
complaints and enquiries & Environmental complaint reports are presented in
Appendix
I.
12.4 Summary of Environmental Summons and Successful Prosecution
12.4.1 No summons and prosecution were received during
the reporting period.
13 Implementation Status on Environmental Mitigation Measures
13.1.1
The Contractor has
generally implemented part of environmental mitigation measures and requirements
as stated in the EIA Report, the EP and EM&A Manual and the contract
documents. The implemented mitigation measures are considered effective. The
implementation status during the reporting period is summarized in Appendix G.
14.1.1 1-hr & 24-hr TSP impact monitoring was carried
out in the reporting period. No Action / Limit
Level exceedance for 1-hr & 24-hr TSP impact monitoring at AM1, AM2 &
AM3 was recorded during the reporting period.
14.1.2 Construction noise monitoring was carried out in
the reporting period. No Action / Limit Level exceedance for construction noise
monitoring at NM1a & NM2a was recorded during the reporting period.
14.1.4 Surface water monitoring was carried out in the
reporting period. No Action / Limit Level exceedance for surface
water monitoring at WM1 & WM2 was recorded during the reporting period.
14.1.5 Landfill Gas Monitoring was carried out in the
reporting period. No exceedance of Action and Limit Levels of LFG was recorded
during the reporting period.
14.1.6 In terms of cultural heritage, implementation of
the mitigation measures such as permanent fencing to protect the boulder path and
setting up warning notices during construction phase of the Project has been
monitored through the regular site inspection/audit in the reporting period. All
the mitigation measures are in order.
14.1.7 no post-transplantation
monitoring, and no post-translocation monitoring was conducted during the
reporting period.
14.1.8 13 environmental site inspections were carried out
in the reporting period. Recommendations on mitigation measures for Permit/
Licenses were given to the Contractor for remediating the deficiencies
identified during the site inspections.
14.1.9 One environmental complaint was recorded during the
reporting period.
14.1.10 No non-compliance event was recorded during the
reporting period.
14.1.11 No notification of summons and prosecution was
received during the reporting period.
Comment and Recommendations
14.1.12 The recommended environmental mitigation measures,
as proposed in the EIA reports and EM&A Manuals shall be effectively
implemented to minimize the potential environmental impacts from the Project.
The EM&A programme would effectively monitor the environmental impacts
generated from the construction activities and ensure the proper implementation
of mitigation measures.
14.1.13
According to the environmental audit performed
in the reporting period, the following recommendations were made:
Air Quality Impact
•
The Contractor was advised to increase the
frequency of watering to prevent dust dispersion.
•
The Contractor was recommended that stockpiling of
excavated materials at SBA shall be covered by impervious sheet or removed.
•
The Contractor was recommended that the section
between the site entrance / exit where located from main access road to Portion
E3-1 and wheel washing facilities within 30m should be paved with concrete,
bituminous materials or hardcores. The wheel washing facilities with high
pressure water jet should be provided at the entrance / exit.
•
The Contractor was advised to provide impervious
sheet to cover the exposed slope surface properly for slope protection.
•
The Contractor was advised that the activity of
handing of bulk cement or dry PFA carried out in a totally enclosed system or
facility or placed in an area sheltered on the top and 3 sides to prevent dust
dispersion.
•
The Contractor was reminded to arrange for watering
regularly at the work sites to ensure the work sites are wetted and to prevent
dust dispersion.
•
The Contractor was recommended that NRMM label
should be fixed and displayed on the generator.
Construction Noise Impact
•
No specific
observation was identified in the reporting period.
Water Quality Impact
•
The Contractor was
recommended that stockpiling of excavated materials at SBA shall be covered by
impervious sheet or removed.
•
The Contractor was
reminded that the precaution shall be taken with Appendix A2 of ProPECC PN 1/94
before, during and after rainstorm.
•
The Contractor has
been reminded to conduct regular maintenance of the silt fence in each layer to
prevent sediment from entering the surface water drainage system.
•
The Contractor was
advised to provide impervious sheet to cover the exposed slope surface properly
for slope protection.
•
The Contractor was
reminded that the temporary drainage system e.g. channel and earth bund should
be provided and protected properly to direct stormwater to slit removal
facility.
•
The Contractor was
reminded that the efficient silt fence should be maintained regularly.
•
The Contractor was
reminded that the inspection and maintenance for slope protective layer should
be enhanced to ensure the effectiveness of the slope surface protective layers.
Waste and Chemical Management
•
The Contractor was advised to provide the enclosed
bins with clearly label near each the rest area for workforce and the waste
skip for collection of C&D Materials should be provided at the designated
storage area.
•
The Contractor was recommended to provide a
chemical drip tray for storing and placing the oil drums and chemical
containers to prevent oil leakage and subsequent land contamination, and the
oil drums and chemical containers should be labelled in English and Chinese.
•
The Contractor was reminded that the waste skip for
C&D waste collection and storage should be placed properly in the flat area
to prevent water stagnation.
Landscape and Visual Impact
•
The Contractor was reminded that the exposed slope
surface should be covered with green netting after the excavation activity in
order to reduce visual impact.
Permit / Licenses
•
No specific observation was identified in the
reporting period.
14.1.14
The Contractor has generally implemented
environmental mitigation measures and requirements as stated in the EIA Report,
the EP and EM&A Manual and the contract documents. The implemented
mitigation measures are considered effective.
14.1.15
The ET will keep track on the EM&A
programme to ensure compliance of environmental requirements and the proper
implementation of all necessary mitigation measures.