Revision History
Rev. |
Description of Modification |
Date |
1. |
1st Issue |
19/12/2024 |
2. |
2nd Issue |
16/01/2025 |
3. |
3rd Issue |
20/01/2025 |
CONTENTS
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|
|
|
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Summary of
Exceedance, Complaint, Notification of Summons and Prosecutions 32
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Conclusions
and Recommendations 36
Appendix A |
Master Programme |
Appendix B |
Overview of Desalination Plant in Tseung Kwan O |
Appendix C |
Summary of Implementation Status of Environmental Mitigation |
Appendix D |
Water Quality Monitoring Graphical Presentation |
Appendix E |
Summary of Exceedances |
Appendix F |
Waste Flow Table |
Appendix G |
Complaint Log |
Appendix H |
Event/Action Plan for Water Quality Monitoring |
Appendix I |
Event/Action Plan for Construction Noise Exceedance |
Appendix J |
Event/Action Plan for Coral Monitoring Exceedance |
Acuity Sustainability Consulting Limited
Executive Summary
Introduction
A1. The Project,
Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant
(TKODP), is a Designated Project under the Environmental Impact Assessment
Ordinance (Cap. 499) (EIAO) and is currently governed by a Further
Environmental Permit (EP No. FEP – 01/503/2015/B) for the construction and
operation of the Contract.
A2. In accordance
with the Environmental Monitoring and Audit (EM&A) Manual for the Contract,
EM&A works for marine water quality, noise, waste management and ecology
should be carried out by Environmental Team (ET), Acuity Sustainability
Consulting Limited (ASCL), during the construction phase of the Contract.
A3. According to
the contractor’s information, the works of TKODP were substantially completed
on 30 June 2024 and the plant commenced the operation phase on 1 July 2024. The
outstanding construction works were being carried out during this reporting
period.
A4. This is the 19th Quarterly EM&A Report, prepared by ASCL, for
the Contract summarizing the monitoring results and audit findings of the
EM&A programme at and around Tseung Kwan O Area
137 (TKO 137) during the reporting period from 1 September 2024 to 30 November
2024.
A5. The EM&A programme for this contract has covered environmental
monitoring on construction noise level at selected NSRs and Contractor’s
environmental performance auditing in the aspects of construction dust,
construction noise, water quality, waste management, Landscape and Visual and
Ecology.
Summary of Main Works Undertaken & Key
Mitigation Measures Implemented
A6. Key activities carried out in
this reporting period for the Project included the followings:
All
Area ·
Security Fence footing
construction work ·
Footpath Construction ·
Landscape Construction ·
Irrigation System
Construction ·
Water Pressure Test for FS
and PL system ·
Landscape planting work ·
Traffic signage work · E&M Works and Mechanical Installation |
PWST ·
Water Test in Tank A ·
Waterproofing work at Roof
Slab on Tank A · Installation of building services, electrical switchboards and cables Installation of mechanical equipment, steel pipe, Pressure Test |
Administration
Building ·
External wall aluminum
features installation ·
Finishing works for dog house ·
Minor Installation of
building services, electrical switchboards & cables, Pressure Test,
T&C ·
Fitting out works · Painting Works |
Chemical
building ·
Defect rectification · Repairing the defects inside the dangerous store |
ActiDAFF ·
Installation of access
opening covers for filtered water tank ·
Carrying out finishing works
for staircase no. 3. ·
Minor Installation of
mechanical equipment, piping system · Minor Installation of building services, electrical switchboards and cables, Installation of FRP Enclosure System |
Product
Water Storage Tank Building · Minor Installation of building services, cable laying and termination, PV Panel Installation, Testing & Commissioning |
OSCG
Building ·
Protective Coating for DG
Rooms ·
Installation of Railing on
Brine Maker Tank ·
Minor Installation of
building services, cables and pipe works, T&C · Tank surface cleaning, T&C |
Reverse
Osmosis Building ·
Installation of Signage, AP
doors, sanitary fitting, sanitary ware in toilet, tiling work and water meter
cabinets · Minor Installation of building services, minor cable laying and termination, Testing & Commissioning, PV Panel Installation |
Post
Treatment Building ·
Installation of Cat Ladders
in Water Tanks ·
Placing Soil Mix at Roof · Curb Construction for Rescue Opening at Water Tanks |
· Installation of building services, piping system, mechanical equipment and piping system, Pressure Test |
Inspection
gallery ·
Construction of roof tiling
works ·
Installation of steel
balustrade at roof ·
Installation of movement
joints ·
Construction of block works · Minor Installation of building service, T&C |
RO and
Electrical Building ·
Installation of Glass House ·
Minor Installation of
building services, electrical switchboards and cables ·
Minor Installation of
mechanical pipework and raised Floor, · PV Panel Installation, T&C Chiller plant
& Main Electrical Building · Minor Installation of building services, electrical switchboards and cables, Pressure Test, T&C Others ·
Slope works* · Construction works of extended access road |
Remark:
*The slope works were completed in October 2024, and there was
no site activities related to the slope works conducted in November 2024.
A7. The major environmental impacts brought by the above construction works
and slope works include:
·
Construction
dust and noise generation from excavation works, construction works;
·
Waste
generation from the construction activities
A8. The key environmental mitigation
measures implemented for the Project in this reporting period associated with
the above construction works include:
·
Dust
suppression by regular wetting and water spraying for construction works and
slope works;
·
Reduction
of noise from equipment and machinery on-site and regularly inspection to
machinery and plants/vehicles on-site to ensure proper functioning;
·
Sorting
and storage of general refuse and construction waste;
·
Deployment
of silt curtain at the inshore water outflow; and
·
Deployment
protective fencing for trees.
Summary of Exceedance & Investigation &
Follow-up
A9. No noise
monitoring was conducted during the reporting period since there are no
project- related construction activities undertaken within a radius of 300m
from the monitoring locations. No exceedance of the Action Level was recorded
during the reporting period.
A10. Referring to
EM&A Manual, the general water quality monitoring should be carried out
when there are marine-related construction activities undertaken. General water
quality monitoring at the ten monitoring stations (CE, CF, WSR1, WSR2, WSR3,
WSR4, WSR16, WSR33, WSR36 and WSR37) was ceased from 1 September 2023 due to
the completion of marine-related construction works.
A11. The operation
phase water quality was conducted from 1 September 2024 to 30 November 2024. Thirty-six (36) of the operation phase water quality monitoring results of SS obtained had
exceeded the Action Level. Eighty-five (85) of the
operation phase water quality monitoring results of SS obtained during the
reporting period had exceeded the Limit Level. After investigation, all
exceedances were concluded unrelated to the Project.
A12. The
continuous monitoring of effluent quality was conducted from 1 September 2024 to 30 November
2024 in accordance with the
EM&A Manual. No exceedance of the sampling was obtained during the
reporting period had exceeded the Limit Level. The plant was shut down from 7
a.m. to 7 p.m. on 3 November 2024. No effluent discharge from TKODP occurred
during this period. Due to the plant has suspended production, there was no
effluent discharge from the TKODP during the period between 24 November 2024
and 30 November 2024.
A13. In this
reporting period, 132 times of Construction Phase landfill gas monitoring were
recorded at Wan Po Road (Ch0+390 – Ch0+780) and (Ch0+400 - Ch1+200). No action and
limit level exceedance for methane, oxygen and carbon dioxide was recorded. The
Construction Phase landfill gas monitoring was ceased from 31 October 2024.
A14. In this
reporting period, Operation Phase landfill gas monitoring was conducted on 25, 26 and 27 September 2024, 9 and 10 October 2024, 14 and 15 November 2024. No exceedances of action level and limit
level was observed.
A15. Operation
phase monthly coral monitoring was conducted during the reporting period on 18 September 2024, 21 October
2024, 11 November 2024. There
is no AL/LL exceedance during the monitoring period.
A16. Operation
phase fishery monitoring for wet season 2024 was carried out on 24 and 31 August 2024. The detail of the monitoring was
presented in the 4th Operation Phase Monthly EM&A Report.
A17. Total thirteen (13) times of Weekly site inspections of the
construction works were also carried out by ET to audit the mitigation measures
implementation status. Three (3) times of
monthly Joint site inspections were carried out by ET and IEC.
A18. A summary of
the EM&A activities in this reporting period is listed in Table I and
summary of the environmental exceedance of the reporting period is tabulated in
Table II.
Table I Summary Table for EM&A Activities in
the Reporting Period
EM&A Activities |
Sep 2024 |
Oct 2024 |
Nov 2024 |
Noise Monitoring |
N/A |
N/A |
N/A |
Water Quality Monitoring |
3, 7, 10, 12, 14, 17, 19, 21, 24, 26 and 28 September 2024 |
1, 3, 5, 8, 10, 12, 15, 17, 19, 22, 24, 26, 29 and 31 October 2024 |
2, 5, 7, 9, 12, 16, 19, 21, 23, 26, 28 and 30 November 2024 |
TRC Monitoring for Main Disinfection |
N/A |
N/A |
N/A |
Coral Monitoring |
18 September 2024 |
21 October 2024 |
11 November 2024 |
Fishery Monitoring |
N/A |
N/A |
N/A |
Landfill Gas Monitoring (Construction Phase) |
2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 16, 17, 19, 20, 21, 23, 24, 25, 26, 27, 28 and 30 September 2024 |
1, 2, 3, 4, 5, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24 and 25 October 2024 |
N/A |
Landfill Gas Monitoring (Operation Phase) |
25, 26 and 27 September 2024 |
9 and 10 October 2024 |
14 and 15 November 2024 |
Environmental Site Inspection |
3, 10, 17 and 24 September 2024 |
3, 8, 15, 22 and 28 October 2024 |
5, 14, 18 and 26 November 2024 |
Continuous Monitoring of Effluent Quality |
From 1 to 30 September 2024 |
From 1 to 31 October 2024 |
From 1 to 30 November 2024 |
Table II Summary Table for Exceedance in the
Reporting Period
Environmental Monitoring |
Parameter |
No. of non- Project related exceedance |
Total No. of non-Project related exceedance |
No. of Project related exceedance |
Total No. of Project related exceedance |
||
AL |
LL |
AL |
LL |
||||
Noise |
Leq (30min) |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
Water |
DO |
0 |
0 |
0 |
0 |
0 |
0 |
Turbidity |
0 |
0 |
0 |
0 |
0 |
0 |
Environmental Monitoring |
Parameter |
No. of non- Project related exceedance |
Total No. of non-Project related exceedance |
No. of Project related exceedance |
Total No. of Project related exceedance |
||
AL |
LL |
AL |
LL |
||||
SS |
36 |
85 |
121 |
0 |
0 |
0 |
|
pH |
0 |
0 |
0 |
0 |
0 |
0 |
|
Salinity |
0 |
0 |
0 |
0 |
0 |
0 |
|
TRC |
0 |
0 |
0 |
0 |
0 |
0 |
|
Landfill Gas |
O2 |
0 |
0 |
0 |
0 |
0 |
0 |
CH4 |
0 |
0 |
0 |
0 |
0 |
0 |
|
CO2 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Continuous Monitoring of Effluent Quality |
Temperature |
0 |
0 |
0 |
0 |
0 |
0 |
pH |
0 |
0 |
0 |
0 |
0 |
0 |
|
Salinity |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total Residual Chlorine |
0 |
0 |
0 |
0 |
0 |
0 |
|
Suspended Solids |
0 |
0 |
0 |
0 |
0 |
0 |
|
Iron-Soluble |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total Inorganic Nitrogen |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total Phosphorus |
0 |
0 |
0 |
0 |
0 |
0 |
|
Sodium Metabisulphite |
0 |
0 |
0 |
0 |
0 |
0 |
|
Anti-scalant as Reactive Phosphorus* |
0 |
0 |
0 |
0 |
0 |
0 |
|
Coral Monitoring |
/ |
0 |
0 |
0 |
0 |
0 |
0 |
Fisheries Monitoring |
/ |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
*Remark: Anti-scalant
water quality testing will only be conducted whenever anti-scalant
dosage is adopted.
Complaint Handling and Prosecution
A19. No environmental complaint was received
during the reporting period. No notifications of summons or prosecution was
received during the reporting period.
Reporting Change
A20. There was no change to be
reported that may affect the on-going EM&A programme.
A21. According to
the contractor’s information, the TKODP commenced operation phase on 1 July
2024. The outstanding construction works were being carried out during this
reporting period.
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Basic Project Information
1.
Background
The Acciona Agua, S.A. Trading, Jardine Engineering Corporation
Limited and China State Construction Engineering (Hong Kong) Limited and as AJC
Joint Venture (AJCJV) is contracted to carry out the Design, Build and Operate
First Stage of Tseung Kwan O Desalination Plant (TKODP) under Contract No.
13/WSD/17 (the Contract).
Acuity
Sustainability Consulting Limited (ASCL) is commissioned by AJCJV to undertake
the Environmental Team (ET) services as required and/or implied, both
explicitly and implicitly, in the Environmental Permit (EP), Environmental
Impact Assessment Report (EIA Report) (Register No. AEIAR-192/2015) and
Environmental Monitoring and Audit Manual (EM&A Manual) for the Contract;
and to carry out the Environmental Monitoring and Audit (EM&A) programme in fulfillment of the EIA Report’s EM&A
requirements and Contract No. 13/WSD/17 Specification requirements.
Pursuant to the
Environmental Impact Assessment Ordinance (EIAO), the Director of Environmental
Protection granted the Environmental Permit (No. EP-01/503/2015) and Variation
of Environmental Permit (No. EP-01/503/2015/B) to Water Supplies Department
(WSD); and granted the Further Environmental Permit (No. FEP-01/503/2015/B) to
AJCJV for the Contract.