evision
History
|
Rev. |
Description of Modification |
Date |
|
1. |
First Issue for Comments |
12/06/2024 |
|
2. |
Revised According to Comments |
19/07/2024 |
|
3. |
Revised According to Comments |
23/07/2024 |
CONTENTS
Summary of Monitoring Exceedance, Complaints, Notification of Summons and Prosecutions29
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
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. This is the 17th 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 March 2024 to 31 May 2024.
A4. The EM&A programme for this contract has covered environmental monitoring on construction noise level at selected NSRs and Contractor’s environmental performance auditing in the aspects of construction dust, construction noise, water quality, waste management, Landscape and Visual and Ecology.
Summary of Main Works Undertaken & Key Mitigation Measures Implemented
A5. Key activities carried out in this reporting period for the Project included the followings:
|
Administration Building - Carrying out the floor tiles works at G/F - External wall painting works - Construction of block work for pipe duct - Installation of building services, cable laying, electrical switchboard, testing and commissioning |
|
Chemical building - Installation of leakage collection pit cover - Underground utility construction work - Landscape work at roof - Defect rectification |
|
Main Electrical & Central Chiller Plant Building - Installation of chillers, building services, electrical switchboard and cable laying - Installation of Roof Tile for Fuel Tank Room |
|
ActiDAFF - Underground utility construction work - Installation of access opening cover - Construction of staircase no 2 - Installation of mechanical equipment, piping system, installation of building services, electrical switchboards and cable laying, fiber-reinforced plastic cover Installation |
|
Product Water Storage Tank Building - Installation of Cat Ladders in Water Tank A - Sealing slab opening in water Tank A - Re-construction of Wall PW8 in Water Tank A -
Installation of metal
cladding, building
services, cable laying, mechanical equipment, steel pipe - Underground utility construction |
|
OSCG Building - Protective Coating for dangerous goods Rooms - Placing Soil Mix at Roof - Installation of Metal Cladding (at East Side) and Roller Shutters and Window - Underground utility construction work - Installation of building services, mechanical equipment and cable laying, testing and commissioning |
|
Reverse Osmosis Building - Installation of building services, electrical switchboard, cable laying, Installation of mechanical equipment, steel pipe, Glass Reinforced Plastic pipe, raised floor, testing and commissioning - Installation of metal cladding, handrailing, roller shutters, glass canopy and glass house - Underground utility construction work - Construction of Reinforced Concrete External Wall for Male Toilet |
|
Post Treatment Building - Installation of building services, Installation of mechanical equipment and piping system, Pressure Test - Underground utility construction work - Installation of Cat Ladders in Water Tanks - Installation of Metal Cladding - Placing Soil Mix at Roof |
|
Inspection corridor - Installation of building services, Lift installation - Construction of roof tiling works and staircases no. 2 - Installation of Movement Joints and glass window |
|
CO2 Tanks - Installation of pipes and electrical wiring, testing and commissioning Combined Shaft and Pump room - Finishing, Grating; window; louvre installation Other - Watermain works at CLP 132 kV Substation - Staircases construction; Steel Bridge assembly and installation at elevated walkway - Road Construction, Footpath Construction, Landscape Construction, Irrigation System Construction, Water Pressure Test for Fire Services and Plumbing System in Zone A, B, C - Structure Construction, steel fence erection of Wave Deflector Wall at seawall area - Slope work* |
*Remark: No site activity for the slope works since 4 May 2024 due to number of landslides occurred during the rainstorm.
A6. The major environmental impacts brought by the above construction works include:
- Construction dust and noise generation from excavation works, construction works, slope works and rock cutting works; and
- No site activity for the slope works since 4 May 2024 due to number of landslides occurred during the rainstorm Waste generation from the construction activities
A7. 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;
- 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
A8. 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.
A9. 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.
A10. The pre-operation (testing and commissioning) phase of desalination plant started in reporting period. The EM&A works for pre-operation phase water quality were conducted during the reporting period in accordance with the EM&A Manual. Ninety-four (94) of the pre- operation phase water quality monitoring results of SS obtained had exceeded the Action Level. Fifty-eight (58) of the pre-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.
A11. In this reporting period, 372 times of 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.
A12. Pre-operation phase monthly coral monitoring was conducted during the reporting period on 26 March 2024, 17 April 2024 and 17 May 2024. The incidents of sediment plume and
trespassers were reported on 9, 10, 13 and 30 May 2024 from the nearby lands (Country Park). There is no AL/LL exceedance during the monitoring period.
A13. Pre-operation phase fishery monitoring for dry season was carried out on 17 and 24 February 2024. There is no AL/LL exceedance during the monitoring period.
A14. 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. Four (4) times of weekly Joint site inspections were carried out by ET and IEC.
A15. 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 |
Mar 2024 |
Apr 2024 |
May 2024 |
|
Noise Monitoring |
N/A |
N/A |
N/A |
|
Pre-operation Phase Water Quality Monitoring |
2, 5, 7, 9, 12, 14, 16, 19, 21 ,23 ,26, 28 and 30 March 2024 |
2, 4, 6, 9, 11, 13, 16, 18, 20, 23, 25, 27 and 30 April 2024 |
2, 7, 9, 11, 14, 16, 18, 21, 23, 25, 28 and 30 May 2024 |
|
TRC Monitoring for Main Disinfection |
N/A |
N/A |
N/A |
|
Pre-operation Phase Coral Monitoring |
26 March 2024 |
17 April 2024 |
17 May 2024 |
|
Pre-operation Phase Fishery Monitoring |
N/A |
N/A |
N/A |
|
Landfill Gas monitoring |
1, 2, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 26 and 27 March 2024 |
1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 29 and 30 April 2024 |
2, 3, 4, 6, 7, 8, 9, 10, 13, 14, 16, 17, 18, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30 and 31 May 2024 |
|
Environmental Site Inspection |
5, 12, 19 and 25 March 2024 |
2, 9, 16, 23 and 29 April 2024 |
7, 14, 21 and 28 May 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 |
|
|
SS |
94 |
58 |
152 |
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 |
|
Complaint Handling and Prosecution
A16. No environmental complaint was received during the reporting period. No notifications of summons or prosecution was received during the reporting period.
Reporting Change
A17. There was no change to be reported that may affect the on-going EM&A programme.
Basic Project
InformationThe 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 (DPTKO) 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.
This is the 17th Quarterly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 March 2024 to 31 May 2024.
The Project Organization structure for Construction Phase is presented in Figure 1.1.
Figure 1.1 Project Organization Chart
Contact details of the key personnel are presented in Table 1.1 below:
Table 1.1 Contact Details of Key Personnel
|
Party |
Position |
Name |
Telephone no. |
Remark |
|
Project Proponent |
SE/CM2 |
Milton Law |
2634-3573 |
/ |
|
Supervising Officer (Binnies Hong Kong Limited) |
Project Manager |
Christina Ko |
2608-7302 |
/ |
|
Chief Resident Engineer |
Roger Wu |
6343-1002 |
/ |
|
|
The Jardine Engineering Corporation, Limited, China State Construction Engineering (Hong Kong) Limited and Acciona Agua, S.A. Trading |
Project Manager |
Stephen Yeung |
2807-4665 |
/ |
|
Environmental Monitoring Manager |
Brian Kam |
9456-9541 |
/ |
|
|
Environmental Monitoring Manager |
Joy Chan |
6468-1782 |
(Until 24 March 2024) |
|
|
Environmental Monitoring Manager |
Tommy Law |
6468-1782 |
(Started from 25 April 2024) |
|
|
Acuity Sustainability Consulting Limited |
Environmental Team Leader |
Jacky Leung |
2698-6833 |
(Until 21 April 2024) |
|
Toby Wan |
9719-5422 |
(Started from 22 April 2024) |
||
|
Lam Environmental Services Limited |
Independent Environmental Checker (IEC) |
Serena Shek |
6149-6683 |
/ |
Details of the major construction activities undertaken in this reporting period are shown as below. The construction programme is presented in Appendix A.
|
Administration Building - Carrying out the floor tiles works at G/F - External wall painting works - Construction of block work for pipe duct - Installation of building services, cable laying, electrical switchboard, testing and commissioning |
|
Chemical building - Installation of leakage collection pit cover - Underground utility construction work - Landscape work at roof - Defect rectification |
|
Main Electrical & Central Chiller Plant Building - Installation of chillers, building services, electrical switchboard and cable laying - Installation of Roof Tile for Fuel Tank Room |
|
ActiDAFF - Underground utility construction work - Installation of access opening cover - Construction of staircase no 2 - Installation of mechanical equipment, piping system, installation of building services, electrical switchboards and cable laying, fiber-reinforced plastic cover Installation |
|
Product Water Storage Tank Building - Installation of Cat Ladders in Water Tank A - Sealing slab opening in water Tank A - Re-construction of Wall PW8 in Water Tank A -
Installation of metal
cladding, building
services, cable laying, mechanical equipment,
steel pipe - Underground utility construction |
|
OSCG Building - Protective Coating for dangerous goods Rooms - Placing Soil Mix at Roof - Installation of Metal Cladding (at East Side) and Roller Shutters and Window - Underground utility construction work - Installation of building services, mechanical equipment and cable laying, testing and commissioning |
|
Reverse Osmosis Building - Installation of building services, electrical switchboard, cable laying, Installation of mechanical equipment, steel pipe, Glass Reinforced Plastic pipe, raised floor, testing and commissioning - Installation of metal cladding, handrailing, roller shutters, glass canopy and glass house - Underground utility construction work - Construction of Reinforced Concrete External Wall for Male Toilet |
|
Post Treatment Building - Installation of building services, Installation of mechanical equipment and piping system, Pressure Test - Underground utility construction work - Installation of Cat Ladders in Water Tanks - Installation of Metal Cladding - Placing Soil Mix at Roof |
|
Inspection corridor - Installation of building services, Lift installation - Construction of roof tiling works and staircases no. 2 - Installation of Movement Joints and glass window |
|
CO2 Tanks - Installation of pipes and electrical wiring, testing and commissioning Combined Shaft and Pump room - Finishing, Grating; window; louvre installation Other - Watermain works at CLP 132 kV Substation - Staircases construction; Steel Bridge assembly and installation at elevated walkway - Road Construction, Footpath Construction, Landscape Construction, Irrigation System Construction, Water Pressure Test for Fire Services and Plumbing System in Zone A, B, C - Structure Construction, steel fence erection of Wave Deflector Wall at seawall area - Slope work* |
*Remark: No site activity for the slope works since 4 May 2024 due to number of landslides occurred during the rainstorm.
A summary of the valid permits, licences, and /or notifications on environmental protection for this Project is presented in Table 1.2.
Table 1.2 Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations
|
Permit/ Licences |
Valid Period |
Status |
Remark |
|
|
From |
To |
|||
|
Environmental Permit |
||||
|
EP - 503/2015/A |
Throughout the Contract |
Valid |
- |
|
|
FEP - 01/503/2015/A |
Throughout the Contract |
Valid |
- |
|
|
EP - 503/2015/B |
Throughout the Contract |
Valid |
-Issued on 3 April 2024 |
|
|
FEP - 01/503/2015/B |
Throughout the Contract |
Valid |
-Issued on 3 April 2024 |
|
|
Notification of Construction Works
under the Air Pollution Control (Construction Dust)
Regulation (Form NA) |
||||
|
451539 |
Throughout the Contract |
Valid |
- |
|
|
Billing Account
for Disposal of Construction Waste |
||||
|
7036276 |
Throughout the Contract |
Valid |
- |
|
|
Sludge (Special Waste) Disposal (Admission Ticket) |
||||
|
17674 |
04/01/2024 |
30/06/2024 |
Valid |
- The renewal application of “Sludge (Special Waste) Disposal (Admission Ticket)” was submitted. |
|
Chemical Waste
Producer Registration |
||||
|
5213-839-A2987-01 |
Throughout the Contract |
Valid |
- |
|
|
Wastewater Discharge Licence (Land and Marine works) |
||||
|
WT00035775-2020 |
23/08/2021 |
31/07/2025 |
Valid |
- |
|
WT00044188-2023 |
16/06/2023 |
30/06/2025 |
Valid |
- For Plant T&C and operation. - Variation of sampling point for the Discharge Licence Part 1 is in process. |
|
Construction Noise
Permit |
||||
|
GW-RE1514-23 |
22/12/2023 |
21/06/2024 |
Valid |
-Renewal of CNP is in process. |
The status for all environmental aspects is presented
in Table 1.3
Table 1.3 Summary of Status for Key Environmental Aspects under the EM&A Manual
|
Parameters |
Status |
|
Water Quality |
|
|
Baseline Monitoring under EM&A Manual |
The baseline water quality monitoring was conducted between 12 May 2020 and 6 June 2020 |
|
Construction Phase Impact Monitoring |
Ceased from 1 September 2023 |
|
Pre-operation Phase Impact Monitoring |
On-going |
|
TRC Monitoring for Main Disinfection |
Completed |
|
Noise |
|
|
Baseline Monitoring |
The baseline noise monitoring result has been reported in Baseline Monitoring Report and submitted to EPD under EP Condition 3.4 |
|
Impact Monitoring |
Completed |
|
Waste Management |
|
|
Mitigation Measures in Waste Management Plan |
On-going |
|
Landfill Gas |
|
|
Regular Monitoring when Construction Works are within the 250m Consultation Zone |
In this reporting period, 372 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780) and (Ch0+400 - Ch1+200). No exceedance of action or limit level for methane, oxygen and carbon dioxide was observed |
|
Ecology (Coral) |
|
|
Pre-operation phase Regular Coral Monitoring (Monthly) |
On-going |
|
Ecology (Fishery) |
|
|
Pre-operation phase Regular Fishery Monitoring (Seasonally) |
On-going |
|
Ecology (Landscape) |
|
|
Pre-operation phase Landscape and Visual Site Inspection |
On-going |
|
Environmental Audit |
|
|
Site Inspection covering Measures of Air Quality, Noise Impact, Water Quality, Waste, Ecological Quality, Fisheries, Landscape and Visual |
On-going |
Other than the EM&A work by ET, environmental briefings, trainings and regular environmental management meetings were conducted, in order to enhance environmental awareness and closely monitor the environmental performance of the contractors.
The EM&A programme has been implemented in accordance with the recommendations presented in the approved EIA Report and the EM&A Manual. A summary of implementation status of the environmental mitigation measures for the construction phase and pre-operation phase of the Project during the reporting period is provided in Appendix C.
NoiseTo ensure no adverse noise impact, construction noise monitoring is recommended to be carried out within 300m radius from the nearby noise sensitive receivers (NSRs), during construction phase. The NSRs selected as monitoring station are (i) NSR4 - Creative Secondary School, (ii) NSR24 - PLK Laws Foundation College, and (iii) NSR31 - School of Continuing and Professional Studies - CUHK respectively.
No impact construction noise monitoring was conducted in the reporting period due to the overly distant monitoring station from the works location, where they were farther than 1 km from the closet monitoring station NSR4 to the works location.
Construction noise level would be measured in terms of the A-weighted equivalent continuous sound pressure level (LAeq). Leq 30min was used as the monitoring parameter for the time period between 0700 and 1900 on normal weekdays. Table 2.1 summarizes the monitoring parameters, frequency and duration of the impact noise monitoring.
Table 2.1 Noise Monitoring Parameters, Time, Frequency and Duration
|
Time |
Duration |
Interval |
Parameters |
|
Daytime: 0700-1900 |
Day time: 0700-1900 (during normal weekdays) |
Continuously in Leq 5min/Leq 30min (average of 6 consecutive Leq 5min) |
Leq 30min L10 30min & L90 30min |
The monitoring locations should normally be made at a point 1m from the exterior of the NSRs building façade and be at a position 1.2m above the ground. A correction of +3dB(A) should be made to the free-field measurements.
According to the environmental findings detailed in the EIA report and Baseline Monitoring Report, the designated locations for the construction noise monitoring are listed in Table 2.2 below.
Table 2.2 Noise Sensitive Receivers
|
NSR ID |
Noise Sensitive Receivers |
Monitoring Location |
Position |
|
NSR 4 |
Creative Secondary School |
Roof Floor |
1 m from facade |
|
NSR 24 |
PLK Laws Foundation College |
Pedestrian Road on Ground
Floor |
Free-field |
|
NSR 31 |
School of Continuing and Professional
Studies - CUHK |
Roof Floor |
1 m from facade |
The monitoring locations should normally be made at a point 1m from the exterior of the NSRs building façade and be at a position 1.2m above the ground. A correction of +3dB(A) should be made to the free-field measurements. Three noise monitoring locations for impact monitoring at the nearby sensitive receivers are shown in Figure 2.1-2.3.
|
|
|
Figure 2.1 NSR4
Creative Secondary School |
|
|
|
Figure 2.2 NSR24
PLK Laws Foundation College |
|
|
|
Figure 2.3
NSR31 School of Continuing and Professional Studies - CUHK |
The Action/Limit Levels are in line with the criteria of Practice Note for Professional Persons (ProPECC PN 2/93) “Noise from Construction Activities - Non-statutory Controls” and Technical Memorandum on Environmental Impact Assessment Process issued by HKSAR Environmental Protection Department [“EPD”] under the Environmental Impact Assessment Ordinance, Cap 499,
S.16 are presented in Table 2.3.
Table 2.3 Action and Limit Levels for Construction Noise Monitoring per EM&A Manual
|
Time Period |
Action Level |
Limit Level (dB(A)) |
|
0700-1900 on normal weekdays |
When one documented complaint is received from any one of the noise sensitive receivers |
· 70 dB(A) for school and · 65 dB(A) during examination period |
Notes: Limits specified
in the GW-TM and IND-TM
for construction and operation noise,
respectively.
If exceedances were found during noise monitoring, the actions in accordance with the Event and Action Plan shall be carried out according to Appendix E.
Referring to EM&A manual Section 4.1.2, the impact noise monitoring should be carried out when there are project-related construction activities undertaken within a radius of 300m from the monitoring stations. As no Contract-related construction activities were undertaken in the reporting period within a radius of 300m from the monitoring stations of the Project site as shown in Figure 2.4, no impact noise monitoring was conducted in the reporting period.
Figure 2.4 Site Layout Plan with Noise Sensitive Receivers and Desalination Plant
Water QualityIn accordance with the recommendations of the EIA, water quality monitoring is required during dredging for the submarine pipelines and, during operation phase. In addition, baseline water quality monitoring was conducted prior to the commencement of marine construction activities. Additional water quality monitoring was conducted during pre-operation.
The following Section provides details of the water quality monitoring to be undertaken by the Environmental Team (ET) to verify the distance of sediment and brine plume dispersion and to identify whether the potential exists for any indirect impacts to occur to ecological sensitive receivers. The water quality monitoring programme was carried out to allow any deteriorating water quality to be readily detected and timely action taken to rectify the situation.
Water quality monitoring for the Project can be divided into the following stages:
- Dredging activities during construction phase;
- Discharge of effluent from main disinfection during construction phase;
- Commissioning activities during pre-operation (testing and commissioning) phase
- Operation phase - first year upon operation; and,
- Continuous monitoring of effluent quality.
The parameters that have been selected for measurement
in situ and in the laboratory are those that were either determined in
the EIA to be those with the most potential to be affected by the construction works or are a standard
check on water
quality conditions. Parameters measured in the
impact monitoring are listed in Table
3.1
Table 3.1 Parameters measured in the impact marine water quality monitoring
|
Parameters |
Unit |
Abbreviation |
|
In-situ measurements |
||
|
Dissolved oxygen |
mg/L |
DO |
|
Temperature |
oC |
- |
|
pH |
- |
- |
|
Turbidity |
NTU |
- |
|
Salinity |
0/00 |
- |
|
Total Residual Chlorine |
mg/L |
TRC |
|
Total Residual Chlorine (Disinfection) |
mg/L |
TRC |
|
Laboratory measurements |
||
|
Suspended Solids |
mg/L |
SS |
|
Iron |
mg/L |
|
|
Anti-scalant |
mg/L |
- |
NOTE 1: Monitoring of Total
Residual Chlorine (Disinfection) will be conducted when cleaning and sterilization of the new freshwater
main is carried out.
In addition to the water quality parameters, other relevant data were measured and recorded in Water Quality Monitoring Logs, including the location of the sampling stations, water depth, time, weather conditions, sea conditions, tidal stage, current direction and velocity, special phenomena and work activities undertaken around the monitoring and works area that may influence the monitoring results.
Pre-operation (testing and commissioning) Phase
The impact
water quality monitoring locations are detailed
in Table 3.2 and
shown in Figure 3.1
below.
Table 3.2 Location of Impact Water Quality Monitoring Station
|
Station |
Easting |
Northing |
Description |
|
CE |
843550 |
815243 |
Upstream control station at ebb tide |
|
CF |
846843 |
810193 |
Upstream control station at flood tide |
|
WSR1 |
846864 |
812014 |
Ecological sensitive receiver at Tung Lung Chau |
|
WSR2 |
847645 |
812993 |
Fisheries sensitive receiver at Tung Lung Chau |
|
WSR3 |
848023 |
813262 |
Ecological sensitive receiver at Tung Lung Chau |
|
WSR4 |
847886 |
814154 |
Ecological sensitive receiver at Tai Miu Wan |
|
WSR16 |
845039 |
815287 |
Ecological sensitive receiver at Fat Tong Chau |
|
WSR33 |
847159 |
814488 |
Ecological sensitive receiver at Tai Miu Wan |
|
WSR36 |
846878 |
814081 |
Ecological sensitive receiver at Kwun Tsai |
|
WSR37 |
846655 |
813810 |
Ecological sensitive receiver at Tit Cham Chau |
|
NF1 |
846542 |
813614 |
Edge of mixing zone, ~ 200m west of outfall diffuser |
|
NF2 |
846942 |
813614 |
Edge of mixing zone, ~ 200m east of outfall diffuser |
|
NF3 |
846742 |
813414 |
Edge of mixing zone, ~ 200m south of outfall diffuser |
Figure 3.1 Impact Water Quality Monitoring Locations under EM&A Manual
The monitoring methodology, equipment used, and QA/QC procedures could be referred to Section 3.1.2 -3.1.4, 3.1.6-3.1.7 and 3.2 of the Monthly EM&A Report.
The Action and Limit Levels have been set based on the derivation criteria specified in the EM&A Manual and based on the baseline water quality monitoring data and the derivation criteria, the Action/Limit Levels have been derived and are presented in Table 3.4.
Table 3.4 Derived Action and Limit Levels for Water Quality
|
Parameters |
Action |
Limit |
|
Pre-Operation (Testing and Commissioning) Phase
Impact Monitoring |
||
|
DO in mg/L |
Surface and Middle 7.30 mg L-1 Bottom 7.31 mg L-1 Tung Lung
Chau Fish Culture Zone 5.1 mgL-1 or level
at control station
(Whichever the lower) |
Surface and Middle 4 mg L-1 Bottom 2 mg L-1 Tung Lung
Chau Fish Culture Zone 5.0 mgL-1 or level
at control station (Whichever the lower) |
|
SS in mg/L
(Depth- averaged) |
5.00 mg L-1 or 20% exceedance of value at any impact
station compared with corresponding data
from control station |
6.00 mg L-1 or 30% exceedance of value at any impact station compared with corresponding data from
control station |
|
Parameters |
Action |
Limit |
|
Pre-Operation (Testing and Commissioning) Phase
Impact Monitoring |
||
|
Turbidity in NTU (Depth- averaged) |
2.41 NTU or
20% exceedance of value at any impact station
compared with corresponding data from control station |
2.84 NTU or 30% exceedance of value at any impact station
compared with corresponding data from control
station |
|
Salinity in PSU (Depth- averaged) |
34.28 PSU or 9% exceedance of value at any impact station
compared with corresponding data from control station |
34.60 PSU or 10% exceedance of value at any impact
station compared with corresponding
data from control station |
|
Iron in mg/L (Depth- averaged) |
0.3 mg/L |
0.3 mg/L |
|
Total residual chlorine in mg/L |
0.01 mg/L |
0.01 mg/L |
|
Total residual chlorine in mg/L (Disinfection) |
0.1 mg/L |
0.1 mg/L |
Notes:
i.
"Depth-averaged" is calculated by taking the arithmetic means of reading of all three depths.
ii.
For DO, non-compliance of the water quality limits
occurs when monitoring result is lower
than the limits.
iii.
For Turbidity, SS, iron and Salinity, non-compliance of the water quality limits
occurs when monitoring result is higher than
the limits.
Construction Phase
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.
Pre-operation (testing and commissioning) Phase
Considering the first pre-operation phase of Tseung Kwan O Desalination Plant was started in the reporting period, additional marine water quality monitoring was conducted at the thirteen monitoring stations (CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36, WSR37, NF1,
NF2 and NF3) from 12 December 2023. The Action and Limit Level would be referred to the approved EM&A Manual Table 5.4 First-year Operation Phase Marine Water Monitoring.
The additional marine water quality monitoring was conducted at the thirteen monitoring stations on 2, 5, 7, 9, 12, 14, 16, 19, 21 ,23 ,26, 28 and 30 March 2024, 2, 4, 6, 9, 11, 13, 16, 18, 20,
23, 25, 27 and 30 April 2024 and 2, 7, 9, 11, 14, 16, 18, 21, 23, 25, 28 and 30 May 2024 during the reporting quarter. The result of the reporting quarterly is presented in Table 3.5.
Ninety-four (94) of the pre-operation phase water quality monitoring results of SS obtained had exceeded the Action Level. Fifty-eight (58) of the pre-operation phase water quality monitoring results of SS obtained during the reporting period had exceeded the Limit Level. The incidents of sediment plume and trespassers were reported on 30 May 2024 from the nearby lands (Country Park).
Investigation on the reason of exceedance has been carried out, where the exceedances of SS were concluded to be unrelated to the Contract as detailed in the Incident Reports on Action Level or Limit Level. Summary of the exceedance is presented in Appendix E.
Table 3.5 Summary of Impact Water Quality Monitoring Results
|
Location |
Parameter |
|||||||||||||||||||||||||||
|
Salinity (ppt) |
Dissolved Oxygen
(mg/L) |
pH |
Turbidity (NTU) |
Suspended Solids (mg/L) |
Temp. (oC) |
TRC (mg/L) |
Iron (mg/L) |
|||||||||||||||||||||
|
Surface & Middle |
Bottom |
|||||||||||||||||||||||||||
|
Mar |
Apr |
May |
Ma |
Ap |
Ma |
Ma |
Ap |
Ma |
Ma |
Ap |
Ma |
Ma |
Ap |
Ma |
Mar |
Apr |
Ma |
Mar |
Apr |
May |
Mar |
Apr |
May |
Ma |
Ap |
Ma |
||
|
CE |
Avg. |
32.6 |
33.1 |
32.5 |
8.35 |
8.49 |
8.75 |
8.37 |
8.50 |
8.75 |
8.10 |
8.27 |
8.23 |
2.44 |
2.36 |
2.03 |
3.17 |
3.80 |
2.76 |
22.8 |
24.5 |
26.3 |
<0.01 |
<0.01 |
<0.01 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
32.0 |
32.2 |
31.8 |
7.89 |
8.02 |
8.10 |
7.93 |
7.98 |
8.11 |
7.73 |
8.14 |
8.09 |
1.91 |
1.70 |
1.22 |
2.50 |
2.50 |
2.50 |
22.1 |
23.1 |
25.8 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.0 |
34.1 |
33.1 |
8.79 |
9.42 |
9.48 |
8.79 |
9.55 |
9.54 |
8.38 |
8.45 |
8.33 |
2.85 |
2.80 |
2.51 |
6.00 |
9.00 |
5.00 |
23.8 |
25.9 |
26.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
CF |
Avg. |
32.7 |
33.1 |
32.4 |
8.47 |
8.59 |
8.79 |
8.45 |
8.59 |
8.79 |
8.09 |
8.26 |
8.22 |
2.52 |
2.46 |
2.09 |
3.31 |
3.92 |
2.85 |
22.8 |
24.6 |
26.3 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.7 |
32.4 |
31.9 |
7.82 |
8.01 |
8.28 |
7.78 |
7.94 |
8.31 |
7.84 |
8.13 |
8.05 |
2.07 |
2.10 |
1.40 |
2.50 |
2.50 |
2.50 |
22.0 |
23.2 |
25.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.6 |
33.9 |
33.3 |
9.11 |
9.11 |
9.45 |
9.10 |
9.06 |
9.45 |
8.40 |
8.43 |
8.35 |
3.77 |
3.33 |
2.59 |
5.00 |
9.00 |
5.00 |
24.0 |
26.0 |
26.8 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR1 |
Avg. |
32.7 |
33.0 |
32.9 |
8.40 |
8.72 |
9.05 |
8.42 |
8.74 |
9.04 |
8.10 |
8.25 |
8.27 |
1.95 |
1.85 |
1.68 |
3.61 |
3.56 |
2.81 |
22.8 |
24.6 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.7 |
31.8 |
31.4 |
7.62 |
7.78 |
8.43 |
7.74 |
7.79 |
8.47 |
7.80 |
8.13 |
8.11 |
1.41 |
1.24 |
1.24 |
2.50 |
2.50 |
2.50 |
22.0 |
23.3 |
25.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.6 |
34.1 |
33.9 |
8.97 |
9.50 |
9.60 |
9.01 |
9.62 |
9.58 |
8.28 |
8.45 |
8.43 |
2.38 |
2.39 |
2.15 |
9.00 |
9.00 |
5.00 |
23.7 |
25.8 |
26.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR2 |
Avg. |
32.6 |
33.3 |
32.6 |
8.45 |
8.60 |
8.97 |
8.45 |
8.61 |
8.94 |
8.11 |
8.29 |
8.23 |
1.92 |
1.89 |
1.71 |
3.59 |
3.65 |
2.79 |
22.8 |
24.6 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.8 |
32.4 |
31.7 |
7.45 |
7.69 |
8.06 |
7.41 |
7.66 |
8.08 |
7.89 |
8.05 |
8.07 |
1.43 |
1.51 |
1.39 |
2.50 |
2.50 |
2.50 |
21.9 |
23.2 |
25.8 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.4 |
33.8 |
33.8 |
9.14 |
9.18 |
9.62 |
9.14 |
9.18 |
9.64 |
8.38 |
8.42 |
8.44 |
2.35 |
2.34 |
2.20 |
10.0 |
8.00 |
6.00 |
23.8 |
26.0 |
26.9 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR3 |
Avg. |
32.9 |
32.9 |
32.6 |
8.47 |
8.50 |
9.06 |
8.45 |
8.49 |
9.06 |
8.08 |
8.24 |
8.27 |
1.97 |
1.93 |
1.66 |
3.92 |
4.13 |
3.10 |
22.8 |
24.6 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
32.0 |
32.0 |
31.3 |
7.89 |
7.93 |
8.44 |
7.86 |
7.88 |
8.55 |
7.79 |
8.07 |
8.10 |
1.57 |
1.57 |
1.21 |
2.50 |
2.50 |
2.50 |
21.9 |
23.3 |
25.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.6 |
33.9 |
34.0 |
9.03 |
9.07 |
9.54 |
9.11 |
9.02 |
9.57 |
8.33 |
8.43 |
8.42 |
2.31 |
2.24 |
1.98 |
11.0 |
8.00 |
8.00 |
23.8 |
25.7 |
26.5 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR4 |
Avg. |
32.5 |
33.0 |
32.6 |
8.33 |
8.66 |
9.11 |
8.34 |
8.63 |
9.09 |
8.06 |
8.21 |
8.25 |
1.92 |
1.96 |
1.71 |
4.24 |
4.23 |
2.91 |
22.9 |
24.6 |
26.1 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.4 |
32.4 |
31.7 |
7.54 |
7.87 |
8.47 |
7.55 |
7.88 |
8.45 |
7.74 |
8.06 |
8.13 |
1.43 |
1.49 |
1.38 |
2.50 |
2.50 |
2.50 |
21.8 |
23.5 |
25.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.5 |
33.7 |
33.4 |
9.21 |
9.19 |
9.65 |
9.04 |
9.14 |
9.67 |
8.28 |
8.34 |
8.38 |
2.31 |
2.25 |
2.07 |
12.0 |
10.0 |
7.00 |
23.8 |
26.1 |
26.5 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR16 |
Avg. |
32.6 |
33.0 |
32.5 |
8.51 |
8.68 |
9.01 |
8.53 |
8.69 |
9.02 |
8.09 |
8.21 |
8.23 |
1.89 |
2.02 |
1.82 |
3.59 |
3.96 |
3.02 |
22.8 |
24.6 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.8 |
32.2 |
31.5 |
7.87 |
7.92 |
8.53 |
7.86 |
7.96 |
8.58 |
7.60 |
8.09 |
8.08 |
1.57 |
1.56 |
1.46 |
2.50 |
2.50 |
2.50 |
22.1 |
23.3 |
25.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
34.2 |
33.8 |
33.1 |
9.06 |
9.21 |
9.62 |
9.13 |
9.16 |
9.55 |
8.43 |
8.36 |
8.41 |
2.36 |
2.26 |
2.13 |
10.0 |
10.0 |
6.00 |
24.0 |
25.9 |
26.5 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR33 |
Avg. |
32.7 |
33.0 |
32.6 |
8.36 |
8.80 |
8.93 |
8.39 |
8.81 |
8.93 |
8.07 |
8.26 |
8.25 |
1.87 |
1.82 |
1.95 |
3.40 |
3.92 |
3.00 |
22.9 |
24.6 |
26.3 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.8 |
32.2 |
31.4 |
7.71 |
7.73 |
8.36 |
7.71 |
7.75 |
8.40 |
7.75 |
8.12 |
8.08 |
1.31 |
1.43 |
1.60 |
2.50 |
2.50 |
2.50 |
22.1 |
23.2 |
25.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
34.1 |
33.9 |
33.7 |
9.12 |
9.40 |
9.42 |
9.17 |
9.48 |
9.47 |
8.36 |
8.42 |
8.43 |
2.35 |
2.27 |
2.29 |
6.00 |
17.0 |
6.00 |
23.9 |
25.8 |
26.8 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR36 |
Avg. |
32.5 |
33.0 |
32.6 |
8.30 |
8.58 |
8.95 |
8.29 |
8.57 |
8.96 |
8.10 |
8.24 |
8.22 |
2.00 |
1.89 |
1.78 |
3.93 |
3.50 |
2.90 |
22.8 |
24.5 |
26.3 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.6 |
32.3 |
31.8 |
7.53 |
7.77 |
8.41 |
7.44 |
7.78 |
8.41 |
7.80 |
8.14 |
8.10 |
1.55 |
1.36 |
1.30 |
2.50 |
2.50 |
2.50 |
21.9 |
23.1 |
25.8 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.6 |
34.1 |
33.3 |
9.15 |
9.58 |
9.28 |
9.12 |
9.59 |
9.28 |
8.31 |
8.40 |
8.42 |
2.35 |
2.29 |
2.22 |
10.0 |
8.00 |
6.00 |
23.6 |
26.0 |
26.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
WSR37 |
Avg. |
32.6 |
33.1 |
32.6 |
8.33 |
8.47 |
8.96 |
8.34 |
8.49 |
8.94 |
8.05 |
8.29 |
8.23 |
1.92 |
1.97 |
1.67 |
3.82 |
3.86 |
3.14 |
22.9 |
24.5 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.7 |
32.3 |
31.7 |
7.98 |
7.85 |
8.00 |
8.03 |
7.90 |
8.03 |
7.62 |
8.14 |
8.09 |
1.45 |
1.52 |
1.21 |
2.50 |
2.50 |
2.50 |
22.0 |
23.3 |
25.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.5 |
33.9 |
33.3 |
8.89 |
9.67 |
9.58 |
8.89 |
9.62 |
9.59 |
8.24 |
8.43 |
8.41 |
2.28 |
2.28 |
2.09 |
9.00 |
11.0 |
7.00 |
23.9 |
25.8 |
26.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Location |
Parameter |
|||||||||||||||||||||||||||
|
Salinity (ppt) |
Dissolved Oxygen
(mg/L) |
pH |
Turbidity (NTU) |
Suspended Solids (mg/L) |
Temp. (oC) |
TRC (mg/L) |
Iron (mg/L) |
|||||||||||||||||||||
|
Surface & Middle |
Bottom |
|||||||||||||||||||||||||||
|
Mar |
Apr |
May |
Ma |
Ap |
Ma |
Ma |
Ap |
Ma |
Ma |
Ap |
Ma |
Ma |
Ap |
Ma |
Mar |
Apr |
Ma |
Mar |
Apr |
May |
Mar |
Apr |
May |
Ma |
Ap |
Ma |
||
|
NF1 |
Avg. |
32.5 |
33.0 |
32.5 |
8.45 |
8.63 |
9.03 |
8.42 |
8.62 |
9.01 |
8.09 |
8.22 |
8.24 |
1.92 |
1.96 |
1.70 |
3.97 |
3.94 |
2.81 |
22.8 |
24.6 |
26.3 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.9 |
32.2 |
31.2 |
7.76 |
7.96 |
8.51 |
7.73 |
7.90 |
8.48 |
7.76 |
8.06 |
8.11 |
1.50 |
1.55 |
1.24 |
2.50 |
2.50 |
2.50 |
22.2 |
23.6 |
25.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.4 |
33.8 |
33.9 |
9.10 |
9.37 |
9.42 |
9.03 |
9.39 |
9.47 |
8.34 |
8.39 |
8.37 |
2.23 |
2.42 |
2.14 |
11.0 |
9.00 |
5.00 |
23.5 |
25.9 |
26.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
NF2 |
Avg. |
32.8 |
33.1 |
32.8 |
8.42 |
8.47 |
8.89 |
8.42 |
8.47 |
8.90 |
8.05 |
8.22 |
8.28 |
1.90 |
1.90 |
1.76 |
3.43 |
4.27 |
2.85 |
22.9 |
24.6 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
32.1 |
32.4 |
31.7 |
7.76 |
7.96 |
8.14 |
7.72 |
7.90 |
8.12 |
7.76 |
8.07 |
8.09 |
1.47 |
1.50 |
1.23 |
2.50 |
2.50 |
2.50 |
22.0 |
23.4 |
25.8 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
33.7 |
33.7 |
33.6 |
9.54 |
9.25 |
9.44 |
9.54 |
9.16 |
9.40 |
8.36 |
8.35 |
8.44 |
2.31 |
2.24 |
2.27 |
8.00 |
13.0 |
6.00 |
23.7 |
25.9 |
26.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
NF3 |
Avg. |
32.7 |
33.0 |
32.6 |
8.31 |
8.56 |
8.77 |
8.31 |
8.54 |
8.77 |
8.05 |
8.27 |
8.26 |
1.91 |
1.95 |
1.81 |
3.31 |
4.37 |
3.12 |
22.9 |
24.6 |
26.2 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
Min. |
31.5 |
32.1 |
31.7 |
8.02 |
7.99 |
7.88 |
7.99 |
8.09 |
7.91 |
7.73 |
8.14 |
8.16 |
1.32 |
1.46 |
1.35 |
2.50 |
2.50 |
2.50 |
22.1 |
23.5 |
25.7 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
|
Max. |
34.0 |
33.8 |
33.5 |
9.05 |
9.54 |
9.22 |
9.05 |
9.55 |
9.19 |
8.30 |
8.42 |
8.40 |
2.35 |
2.44 |
2.14 |
6.00 |
15.0 |
7.00 |
23.8 |
26.0 |
26.6 |
<0.0 |
<0.0 |
<0.0 |
<0.1 |
<0.1 |
<0.1 |
|
WasteThe waste generated from this Project
includes inert construction and demolition (C&D) materials, and non-inert
C&D materials. Non-inert C&D materials are made up of general refuse,
vegetative wastes, and recyclable wastes such as plastics and paper/cardboard
packaging waste. Steel materials generated from the project are also grouped
into non-inert C&D materials as 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 period are summarized in Table 4.1. Details of cumulative waste management data are presented as a waste flow table in Appendix F.
Table 4.1 Quantities of Waste Generated from the Project during reporting period
|
Reporting Months |
Actual Quantities of Inert C&D Materials Generated Monthly |
Actual Quantities of C&D Wastes
Generated Monthly |
|||||||||
|
Total Quantity Generated |
Hard Rock and Large Broken Concrete |
Reused in the Contract |
Reused in other
Projects |
Disposed as Public Fill |
Imported Fill |
Metals |
Paper / cardboard packaging |
Plastics (1) |
Chemical Waste |
Others, e.g. general
refuse |
|
|
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
(in ,000kg) |
|
|
Mar 2024 |
81.140 |
0.000 |
0.000 |
0.000 |
81.140 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
52.260 |
|
Apr 2024 |
57.130 |
0.000 |
0.000 |
0.000 |
57.130 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
47.390 |
|
May 2024 |
91.370 |
0.000 |
0.000 |
0.000 |
91.370 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
77.260 |
Notes: (1) Plastics
refer to plastic
bottles / containers, plastic sheets / foam from packaging material
Landfill Gas
MonitoringIn accordance with Section 11 of the EM&A Manual, monitoring of landfill gas is required for construction works within the 250m Consultation Zone. Part of the desalination plant and the indicative area of natural slope mitigation works fall within the SENT Landfill Extension Consultation Zone; and part of the 1,200 mm diameter fresh water mains along Wan Po Road falls within the SENT Landfill and SENT Landfill Extension Consultation Zones, TKO Stage II/III Restored Landfill and TKO Stage I Restored Landfill Consultation Zones.
Monitoring of oxygen, methane, carbon dioxide and barometric pressure was performed for excavations at 1m depth or more within the consultation Zone.
During construction of works within the consultation zones, excavations of 1m depth or more was monitored:
- At the ground surface before excavation commences;
- Immediately before any worker enters the excavation;
- At the beginning of each working day for the entire period the excavation remains open; and
- Periodically through the working day whilst workers are in the excavation.
For excavations between 300mm and 1m deep, measurements should be carried out:
- Directly after the excavation has been completed; and
- Periodically whilst the excavation remains open.
LFG monitoring was carried out to identify any migration between the landfill and the Project and to ensure the safety of the construction, operation and maintenance personnel working on- site, visitors and any other person within the Project area.
The following parameters were monitored:
- Methane.
- Oxygen.
- Carbon Dioxide.
- Barometric Pressure.
The area required
to be monitored for landfill
gas in the reporting period
is shown in Figure 5.1.
Figure 5.1 Overview of the SENT Extension Consultation Zone and the Project Site Area
Action and Limit Level are provided in Table 5.1.
Table 5.1 Action and Limit Level for Landfill Gas Monitoring
|
Parameters |
Action Level |
Limit Level |
|
Oxygen (O2) |
<19% O2 |
<19% O2 |
|
Methane (CH4) |
>10% LEL |
>20% LEL |
|
Carbon Dioxide (CO2) |
>0.5% CO2 |
>1.5%
CO2 |
The monitoring equipment used in the reporting period could be referring to Section 5.10 - 5.11 of the Monthly EM&A Report.
In this reporting period, 372 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780) and (Ch0+400 - Ch1+200). No exceedance of action and limit levels for methane, oxygen and carbon dioxide was observed. Monitoring was conducted during excavations at 1m depth or more within the consultation zone and whenever workers entered the excavation on the day. The Loation Map for Landfill Gas Monitoring at TKO Area 137 are shown in Figure 5.2 and 5.3.
Figure 5.2 Location Map for Landfill
Gas Monitoring at TKO Area 137 (-0+440 - -0+760)
Figure 5.3 Location Map for Landfill Gas Monitoring at TKO Area 137 (-0+740 - -1+060)
Summary of Exceedance, Complaint, Notification of Summons and
Prosecutions
The Environmental Complaint Handling Procedure
is shown in below
Figure
6.1:
Figure 6.1 Environmental Complaint Handling Procedures
No noise monitoring was conducted during the reporting period since there are no Contract- related construction activities undertaken within a radius of 300m from the monitoring locations. No Action Level exceedance was recorded during the reporting period.
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.
The EM&A works for pre-operation phase water quality were conducted during the reporting period in accordance with the EM&A Manual
Ninety-four (94) of the pre-operation phase water quality monitoring results of SS obtained had exceeded the Action Level. Fifty-eight (58) of the pre-operation phase water quality monitoring results of SS obtained during the reporting period had exceeded the Limit Level. After investigation, all exceedances were considered non-project related.
In this reporting period, 372 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780) and (Ch0+400 - Ch1+200). No exceedance of action and limit levels for methane, oxygen and carbon dioxide was observed. Monitoring was conducted during excavations at 1m depth or more within the consultation zone and whenever workers entered the excavation on the day.
Pre-operation phase monthly coral monitoring was conducted during the reporting period on 26 March 2024, 17 April 2024 and 17 May 2024. No sediment, bleaching or increased mortality in the general condition of all other tagged coral colonies were observed during the monthly operation phase monitoring period. No deterioration of the coral community was observed in the ecological monitoring results when compared with the baseline ecological monitoring results. There is no AL/LL exceedance during the monitoring period.
Pre-operation phase fishery monitoring for dry season 2024 was carried out on 17 and 24 February 2024. The survey findings showed that the abundance and diversity of fish eggs and larvae are on the low side for the Study Area, and the abundance and diversity of juveniles are very low for the Study Area. Survey findings also showed that there was a very week relationship in recorded families between ichthyoplankton assemblages, adult fish and juvenile fish in the Study Area, which implies that the Study Area does not appear to be an important spawning or nursery grounds for commercial fishes.
ET will keep closely monitoring the performance of Contractor, implementation of water quality mitigation measure and other contamination issue around the Project site, to ensure the EM&A requirement is properly implemented.
No environmental complaint was received in the reporting period. No notification of summons and prosecution was received in the reporting period.
Statistics on complaints and regulatory compliance are summarized in Appendix G.
Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract.
ET weekly site inspections were carried out by ET on 5, 12, 19 and 25 March 2024, 2, 9, 16, 23
and 29 April 2024 and 7, 14, 21 and 28 May 2024.
Joint site inspections were also carried out by ET and IEC on 19 and 25 March 2024, 29 April 2024 and 28 May 2024.
Minor deficiencies were observed during weekly site inspection. Key observations during the site inspections are summarized below:
· The contractor is reminded to maintain the landscape works after the adverse weather near RO building.
The Contractor has rectified the observations identified during environmental site inspections in the reporting period.
According to the EIA Study Report, Environmental Permit, contract documents and EM&A Manual, the mitigation measures detailed in the documents should be implemented as much as practical during the reporting period. An updated Implementation Status of Environmental Mitigation Measures (EMIS) is provided in Appendix C.
Conclusions and
RecommendationsThis is the 17th Quarterly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 March 2024 to 31 May 2024, in accordance with the EM&A Manual and the requirement under FEP-01/503/2015/B.
No noise monitoring was conducted in the reporting period due to the over distant monitoring station from the works location.
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.
The EM&A works for pre-operation phase water quality were conducted during the reporting period in accordance with the EM&A Manual Ninety-four (94) of the pre-operation phase water quality monitoring results of SS obtained had exceeded the Action Level. Fifty-eight (58) of the pre-operation phase water quality monitoring results of SS obtained during the reporting period had exceeded the Limit Level. The incidents of sediment plume and trespassers were reported on 30 May 2024 from the nearby lands (Country Park). After investigation, all exceedances were considered non-project related.
In this reporting period, 372 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780) and (Ch0+400 - Ch1+200). No exceedance of action and limit levels for methane, oxygen and carbon dioxide was observed. Monitoring was conducted during excavations at 1m depth or more within the consultation zone and whenever workers entered the excavation on the day.
Pre-operation phase monthly coral monitoring was conducted during the reporting period on26 March 2024, 17 April 2024 and 17 May 2024. No sediment, bleaching or increased mortality in the general condition of all other tagged coral colonies were observed during the monthly operation phase monitoring period. No deterioration of the coral community was observed in the ecological monitoring results when compared with the baseline ecological monitoring results. There is no AL/LL exceedance during the monitoring period.
Pre-operation phase fishery monitoring for dry season 2024 was carried out on 17 and 24 February 2024. The survey findings showed that the abundance and diversity of fish eggs and larvae are on the low side for the Study Area, and the abundance and diversity of juveniles are very low for the Study Area. Survey findings also showed that there was a very week relationship in recorded families between ichthyoplankton assemblages, adult fish and juvenile fish in the Study Area, which implies that the Study Area does not appear to be an important spawning or nursery grounds for commercial fishes.
Weekly environmental site inspection was conducted during the reporting period. Minor deficiency was observed during site inspection and was rectified. The environmental performance of the project was therefore considered satisfactory.
According to the environmental site inspections performed in the reporting period, the Contractor is reminded to pay attention on maintaining proper materials storage.
Two (2) environmental complaints were received of Contract since commencement of the Contract. No notification of summons or prosecution was received of the Contract since commencement of the Contract quarter.
The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.
Appendix A
Master Programme
Appendix B
Overview of Desalination Plant in Tseung Kwan O
Appendix C
Summary of Implementation Status of
Environmental Mitigation
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
Air Quality |
||||||||
|
S4.8.1 |
Impervious dust screen
or sheeting will be provided to enclose scaffolding from the ground floor level
of building for construction of
superstructure of the new buildings. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
Air Pollution Control
(Construction Dust) |
|
S4.8.1 |
Impervious sheet
will be provided for skip hoist for material
transport. |
Land site/ During
Construction |
Contractor(s) |
|
ü |
|
NA |
- |
|
S4.8.1 |
The area where
dusty work takes
place should be sprayed with water
or a dust suppression chemical immediately prior to, during and immediately after dusty activities as far as practicable. |
Land site/ During
Construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
All dusty materials should be sprayed with water
or a dust suppression chemical
immediately prior to any loading, unloading
or transfer operation. |
Land site/ During
Construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
Dropping heights for excavated materials should be controlled to a practical height to minimize the fugitive dust
arising from unloading. |
Land site/ During
Construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
During transportation by truck, materials should not be loaded to a level higher than the side and tail
boards and should be dampened or
covered before transport. |
Land site/ During Construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
Wheel washing device should be provided at the exits of the work sites. Immediately before leaving a
construction site, every vehicle shall
be washed to remove any dusty material from
its body and wheels as far as practicable. |
Land site/ During
Construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
Road sections between vehicle-wash areas
and vehicular entrance will be paved. |
Land site/ During
Construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
Hoarding of not less than 2.4m high from ground level will be provided along the length of the Project Site boundary. |
Land site/ During construction |
Contractor(s) |
ü |
ü |
|
N/A |
- |
|
S4.8.1 |
Haul roads will be kept clear of dusty materials and will be sprayed with water so as to maintain the
entire road surface wet at all
times. |
Land site/ During
construction |
Contractor(s) |
|
ü |
|
Implemented after
reminder |
- |
|
S4.8.1 |
Temporary stockpiles of dusty materials will be either
covered entirely by
impervious sheets or sprayed with water to
maintain the entire surface wet all the time. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented after
reminder |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S4.8.1 |
Stockpiles of more
than 20 bags
of cement, dry
pulverized fuel ash and dusty construction materials
will be covered entirely by
impervious sheeting sheltered on top and 3-sides. |
Land site/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S4.8.1 |
All exposed
areas will be kept wet always to minimize dust emission. |
Land site/ During
construction |
Contractor(s) |
|
ü |
|
Implemented after
reminder |
- |
|
S4.8.1 |
Ultra-low-Sulphur diesel (ULSD) will be used for all construction plant on-site, as defined
as diesel fuel containing not more than 0.005% Sulphur by weight)
as stipulated in Environment, Transport and Works Bureau
Technical Circular (ETWB-TC(W)) No 19/2005 on Environmental
Management on Construction Sites. |
Land site/
During construction/ During
Operation |
Contractor(s) |
|
ü |
ü |
Implemented |
Environment, Transport and Works Bureau Technical Circular (ETWB- TC(W)) No 19/2005 on Environmental Management on Construction Sites |
|
S4.8.1 |
The engine
of the construction equipment during idling
will be switched off. |
Land site/ During
construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.8.1 |
Concrete batching plant will be required on site. control measures recommended in the Guidance
Note on a Best Practicable Means
for Cement Works (Concrete Batching Plant)
(BPM 3/2 (93)) will be implemented. The control measures recommended in the Guidance Note on a Best Practicable Means for Cement Works (Concrete
Batching Plant) (BPM 3/2 (93)) will
be implemented. |
Land site/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S4.8.1 |
Regular maintenance of construction equipment deployed on- site will be conducted to prevent black
smoke emission. |
Land site/ During
construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S4.10 |
To ensure proper implementation of the recommended dust mitigation measures and good
construction site practices during
the construction phase, environmental site audits on weekly basis is recommended throughout the construction period. |
Land site/ During
construction |
Contractor(s)/ Environmental Team (ET) & Independent Environmental Checker (IEC) |
|
ü |
|
Implemented |
- |
|
Noise |
||||||||
|
S5.7 |
Only well-maintained plant will be operated on-site, and plant will be serviced regularly during the
construction phase. |
All area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
A Practical Guide
for the Reduction of Noise from Construction
Works A Practical Guide for the Reduction of Noise from Construction
Works |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S5.7 |
Silencers or mufflers on construction equipment will be utilized and will be properly maintained
during the construction phase. |
Noise control/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S5.7 |
Mobile plant,
if any, will be sited
as far away
from NSRs as possible. |
Noise control/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S5.7 |
Machines and plant (such as trucks) that may be in intermittent use will be shut down
between work periods or will be
throttled down to a minimum. |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S5.7 |
Plants known to emit noise strongly in one direction will, wherever possible, be orientated so that
the noise is directed away from the
nearby NSRs. |
Noise control/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S5.7 |
Material stockpiles and other structures will be effectively utilized, wherever practicable, in screening noise
from on-site construction activities. |
Noise control/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S5.7 |
Use of Quite Powered Mechanical Equipment (QPME). |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S5.7 |
Movable noise barriers of 3m in height with skid footing should be used and located within a few
meters of stationary plant and
mobile plant such that
the line of sight to the
NSR is blocked by the barriers. The length of the
barrier should be at least five times greater than its
height. The noise barrier material should have a superficial surface
density of at least
7 kg m-2 and have no o or
gappeningss. |
Noise control/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S5.7 |
The noise
insulating sheet should
be deployed such
that there would be no opening or gaps on the
joints. |
Noise control/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S5.7 |
Construction activities (e.g., excavation/shoring, reinstatement (asphalt), and pipe
jacking) will be planned and carried
out in sequence, such that items of PME proposed for these activities will not be operated simultaneously. |
Noise control/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
- |
|
S5.7 |
PMEs will not be used at the works areas near educational institutions with residual impact (i.e.,
the “influence area” within a radius of 40m) during
school hours in order to reduce impact to the educational institutions. |
Noise control / During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S5.7 |
Noise enclosures
or acoustic sheds would be used to cover stationary
PME such as generators. Portable/Movable noise enclosure made of material with superficial surface density of at
least 7 kg m-2 may be used for screening the noise from operation of the saw/groover, concrete. |
Noise control/
Pre- construction/ During
construction |
Contractor(s) |
ü |
ü |
|
N/A |
- |
|
5.9 |
Sawcutting pavement, breaking up of pavement, excavation /shoring, pipe laying,
backfilling, reinstatement (concrete) and pipe jacking
shall be scheduled outside the examination
period. |
Noise control/
Pre- construction/ During
construction |
Contractor(s) |
ü |
ü |
|
N/A |
- |
|
S5.9 |
In view the duration of noise exceedance at Creative Secondary School, PLK Laws Foundation College, TKO Kei Tak Primary
School and School of Continuing and Professional Studies-CUHK is limited to 8 weeks, the construction work in the influence areas near the four
schools shall be scheduled during
long school holidays (eg summer holiday, Easter holiday or Christmas holiday, etc) as far as practicable. Scheduling the construction work
for the four
schools. |
Noise control/ Pre- construction/ During
construction |
Contractor(s) |
ü |
ü |
|
N/A |
- |
|
S5.10 |
A noise
monitoring programme shall be implemented for the construction phase. |
Designated monitoring stations as defined in EM&A Manual/During construction phase |
Environmental Team |
|
ü |
|
N/A |
- |
|
S5.10 |
The effectiveness of on-site control
measures could also be evaluated through the regular site
audits. |
All facilities/ During
construction |
Contractor(s)/ ET &
IEC |
|
ü |
|
Implemented |
- |
|
Water Quality |
||||||||
|
S6.9 |
Dredged marine sediment will be disposed of in a gazette marine disposal area in accordance with
marine dumping permit conditions of
the Dumping at Sea Ordinance (DASO). |
Marine Dredging/ During
construction |
Contractor(s) |
|
ü |
|
Implemented |
Dumping at Sea Ordinance (DASO) |
|
S6.9 |
Disposal vessels
will be fitted with tight
bottom seals in order to prevent leakage of material during transport. |
Marine Dredging/ During
construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
Barges will be filled to a level, which ensures that material does not spill over during transport to
the disposal site and that adequate freeboard is maintained to ensure that the decks
are not washed by wave action. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
After dredging, any excess materials will be cleaned from decks
and exposed fittings before the vessel
is moved from the dredging area. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S6.9 |
All vessels
should be well maintained and inspected before
use to limit any potential discharges
to the marine environment. |
Marine Dredging/ During
construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
All vessels must have a clean
ballast system. |
Marine Dredging/ During
construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
No discharge of sewage/grey wastewater should be allowed. Wastewater from potentially contaminated
area on working vessels should be
minimized and collected. These
kinds of wastewater should be
brought back to port
and discharged at appropriate
collection and treatment system. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
|
S6.9 |
No soil waste is allowed to be disposed overboard. |
Marine Dredging/ During
construction |
Contractor(s) |
|
ü |
|
N/A |
|
|
S6.9 |
Silt removal facilities such as silt traps or sedimentation facilities will be provided to remove
silt particles from runoff to meet the requirements of the TM standard under
the WPCO. The design of silt removal facilities
will be based on the guidelines
provided in ProPECC PN 1/94. All
drainage facilities and erosion and
sediment control structures will be inspected on a regular basis and maintained to confirm proper
and efficient operation at all times and particularly during rainstorms. Deposited silt and grit will
be removed regularly. |
Land site &
drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
ProPECC PN 1/94 TM Standard under
the WPCO |
|
S6.9 |
Earthworks to form
the final surfaces will be followed up with surface protection and drainage works to
prevent erosion caused by
rainstorms. |
Land site &
drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
Appropriate
surface drainage will be designed and provided where necessary. |
Land site &
drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
The precautions to be taken at any time of year when rainstorms are likely together with the
actions to be taken when a rainstorm is imminent or forecasted
and actions to be taken during
or after rainstorms are summarised in Appendix A2 of ProPECC PN 1/94. |
Land site &
drainage/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
ProPECC PN 1/94 |
|
S6.9 |
Oil interceptors will be provided in the drainage system where necessary and regularly emptied to
prevent the release of oil and
grease into the storm water drainage system after accidental spillages. |
Land site &
drainage/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S6.9 |
Temporary and permanent drainage pipes and culverts provided to facilitate runoff discharge,
if any, will be adequately designed for the controlled release of storm
flows. |
Land site &
drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 |
The temporary diverted drainage, if any, will be
reinstated to the original
condition when the construction work has finished
or when the temporary diversion is no longer
required. |
Land site & drainage/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S6.9 |
Appropriate numbers of portable toilets shall be provided by a licensed contractor to serve the
construction workers over the
construction site to prevent direct
disposal of sewage
into the water environment. |
Land site &
drainage/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S6.9 and S6.12 |
The sterilization water should be dechlorinated with total residual chlorine (TRC) level below 1
mg/L before discharge to public
sewer. In situ testing of TRC should
also be conducted for the discharge of chlorinated water
for pipeline disinfection to ensure sufficient dechlorination before discharge to public sewer. |
Sterilization of water mains prior to commissioning |
Contractor(s) |
|
ü |
ü |
N/A |
Technical Memorandum for Effluents Discharged into Drainage and Sewerage Systems Inland
and Coastal Waters |
|
S6.9 |
The cleaning and flushing water should also be treated and desilted to the relevant discharge requirement
stipulated in TM-DSS before
discharging. |
Sterilization of water mains prior to commissioning |
Contractor(s) |
|
ü |
ü |
Implemented |
|
|
S6.9 |
Site drainage should be well maintained, and good construction practices should be
observed to ensure that oil, fuels,
solvents and other chemicals are managed, stored and handled properly and do not enter the nearby water streams. |
Land site & drainage/ During construction/ During
operation |
Contractor(s) |
|
ü |
ü |
Implemented after
reminder |
- |
|
S6.12 |
Regular site
inspections will be carried out in order
to confirm that regulatory requirements are being
met and that contractors are
implementing the standard site practice and
mitigation measures as proposed to reduce potential impacts to water quality. |
During construction |
Contractor(s)/ ET & IEC |
|
ü |
|
Implemented |
- |
|
Waste Management |
||||||||
|
S8.5 |
Nomination of
approved personnel to be responsible for standard
site practices, arrangements for collection and effective disposal to an appropriate facility of all wastes generated at the site. |
Contract mobilization/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S8.5 |
Training of site personnel in proper waste management and chemical handling procedures. Training
will be provided to workers on the
concepts of site cleanliness and appropriate
waste management procedures, including waste reduction, reuse and recycling
at the beginning of the construction works. |
Contract mobilization/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
Provision of sufficient waste
disposal points and regular collection for disposal. |
All area/ During construction/ During operation |
Contractor(s) |
|
ü |
ü |
Implemented |
DEVB TC(W) No. 8/2010, Enhanced Specification for Site
Cleanliness and Tidiness. |
|
S8.5 |
Appropriate measures to reduce windblown litter and dust transportation of waste by either
covering trucks or by transporting
wastes in enclosed containers. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
|
S8.5 |
A waste management plan (WMP) as stated in the “ETWB TC(W) No. 19/2005, Environmental
Management on Construction Sites”
for the amount of waste generated, recycled
and disposed of (including the disposal sites) will be established and implemented
during the construction phase as part
of the Environmental Management Plan (EMP).
The Contractor will be required to prepare the EMP and submits it to
the Architect/ Engineer under the Contract for approval prior to implementation. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
ETWB TC(W)
No. 19/2005, Environmental Management on Construction Sites |
|
S8.5 |
Separation of chemical wastes for special handling and appropriate treatment at the Chemical
Waste Treatment Centre at Tsing Yi. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
Chapters 2 & 3 Code of Practice on the Packaging, Labelling
& Storage of Chemical Wastes published under the
Waste Disposal Ordinance (Cap 354), |
|
S8.5 |
Regular cleaning and maintenance programme for drainage systems, sumps and oil interceptors. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
Waste Disposal Ordinance (Cap
354) |
|
S8.5 |
A recording system for the amount of waste generated/ recycled and disposal sites. The trip- ticket system will be included as one of the contractual requirements
and implemented by the
contractor(s). |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
DEVB TC(W) No. 6/2010, Trip Ticket System for Disposal of Construction & |
|
S8.5 |
Segregation and storage of different types
of waste in different containers, skips or stockpiles to enhance reuse
or recycling of material
and their proper disposal. |
Land site/
During construction/ During
operation |
Contractor(s) |
|
ü |
|
Implemented |
WBTC 32/92,
The Use of Tropical
Hard Wood on Construction Site |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S8.5 |
Encourage collection of aluminium cans and wastepaper by individual collectors during
construction with separate labelled
bins provided to segregate these wastes from other general refuse by the workforce. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
ETWB TCW No. 33/2002, Management of Construction and |
|
S8.5 |
Any unused
chemicals and those
with remaining functional capacity will be recycled as far as possible. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
|
S8.5 |
Use of reusable non-timber formwork to reduce the amount of C&D
materials. |
All areas/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
WBTC 32/92,
The Use of Tropical
Hard Wood on Construction Site |
|
S8.5 |
Prior to disposal of construction waste, wood, steel and other metals will be separated to the extent
practical, for re-use and/or
recycling to reduce the quantity of waste to be disposed of to landfill. |
All areas/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
DEVB TC(W) No. 6/2010, Trip Ticket System for Disposal of Construction &
Demolition Materials |
|
S8.5 |
Proper storage and site practices to reduce the
potential for damage or
contamination of construction materials. |
All areas/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
Plan and stock construction materials carefully to reduce amount
of waste generated and avoid unnecessary generation of
waste. |
All areas/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
A Sediment Quality Report (SQR) for sampling and chemical testing of the sediment will be prepared
and submitted to the EPD for
approval. The approved detailed
sampling and chemical testing will
be carried out prior to the commencement
of the dredging activities to confirm the sediment
disposal method. |
Marine works/ During construction |
Contractor(s) |
|
ü |
|
N/A |
ETWB TC(W) No. 34/2002 and Dumping
at Sea Ordinance (DASO) |
|
S8.5 |
The management of dredged/ excavated sediment management requirement from ETWB TC(W) No. 34/2002 will be incorporated in the Specification
of the Contract Documents. |
Marine works/ During construction |
WSD/ Contractor(s) |
|
ü |
|
Implemented |
ETWB TC(W) No. 34/2002 and Dumping
at Sea Ordinance (DASO) |
|
S8.5 |
The contractor will open a billing account with EPD in accordance with the Waste Disposal
(Charges for Disposal of Construction
Waste) Regulation for the payment of disposal charges. |
Contract mobilization/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
Cap 354N Waste Disposal (Charges for Disposal of Construction
Waste) Regulation |
|
S8.5 |
A trip-ticket
system will be established in accordance with DEVB TC(W) No. 6/2010 to monitor the reuse of surplus excavated
materials off-site and disposal of construction waste and general refuse at transfer
facilities/ landfills, and to control fly-tipping. |
Contract mobilization/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
DEVB TC(W) No. 6/2010, Trip Ticket System for Disposal of Construction &
Demolition Materials |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S8.5 |
The project proponent will
also conduct regular inspection of the
waste management measures implemented on site as described in the Waste Management Plan. |
All area/
During construction |
Contractor(s)/ Environmental Team (ET) &
Independent Environmental Checker (IEC) |
|
ü |
|
Implemented |
ETWB TC(W) No. 19/2005, Environmental Management on Construction Sites |
|
S8.5 |
A recording system (similar to summary table as shown in Annex 5 and Annex 6 of Appendix G of
ETWB TC(W) No. 19/2005) for the amount
of waste generated, recycled and disposed of
(including the disposal sites) will be established during the construction phase. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
Annex 5 and Annex
6 of Appendix G of ETWB TC(W)
No. 19/2005 |
|
S8.5 |
Inert C&D materials (public fill)
will be reused
within the Project as far as practicable. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
Public fill and construction waste shall be segregated and stored in different containers or skips
to facilitate reuse or recycling of
materials and their proper disposal. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
Specific areas
of the work
site will be designated for
such segregation and storage
if immediate use is not practicable. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
To reduce the potential dust and water
quality impacts of site formation works, C&D materials will
be wetted as quickly as possible to
the extent practice after filling. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
Air Pollution Control (Construction
Dust) Regulation (Cap 311R); WPCO (Cap 358) |
|
S8.5 |
Open stockpiles of excavated/ fill materials or construction wastes on-site should be covered with
tarpaulin or similar fabric. |
Land site/ During Construction, particularly dry season |
Contractor(s) |
|
ü |
|
Implemented |
Air Pollution Control (Construction
Dust) Regulation (Cap 311R) |
|
S8.5 |
Chemical waste container shall be suitable for the substance they are holding, resistant to
corrosion, maintained in a good condition,
and securely closed. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage
of Chemical Wastes |
|
S8.5 |
Chemical waste
container shall have a capacity of less than
450 L unless the
specifications have been approved by the EPD. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
S8.5 |
A label in English and Chinese shall be displayed on the chemical container in accordance with instructions prescribed in Schedule 2 of the Regulations. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S8.5 |
Storage areas
for chemical waste shall be enclosed on at least 3 sides. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
S8.5 |
Storage areas for chemical waste shall have an
impermeable floor and bunding, of
capacity to accommodate 110% of the volume
of the largest container or 20% by volume of the chemical waste stored in that area, whichever is the greatest. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
S8.5 |
Storage areas
for chemical waste
shall have adequate ventilation. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
S8.5 |
Storage areas for chemical waste shall be covered
to prevent rainfall entering (water
collected within the bund must be tested
and disposed of as chemical waste, if necessary). |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
S8.5 |
Storage areas
for chemical waste
shall be arranged so that incompatible materials are appropriately
separated. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
|
|
S8.5 |
General refuse
will be stored in enclosed bins or compaction units separately from construction and chemical wastes. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented after
reminder |
|
|
S8.5 |
Adequate number
of waste containers will be provided to avoid
over-spillage of waste. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
DEVB TC(W) No. 8/2010 Enhanced Specification for Site Cleanliness and Tidiness. |
|
S8.5 |
A reputable waste collector will be employed by the Contractor to remove general refuse from
the site, separately from
construction and chemical wastes, on a daily basis to minimise odour, pest and litter impacts. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented after
reminder |
- |
|
S8.5 |
Recycling bins will be provided at strategic locations within the Site to facilitate recovery of recyclable materials (including aluminum
can, waste paper, glass bottles and plastic bottles) from the Site. Materials recovered will be sold for recycling. |
All area/ During construction/ During operation |
Contractor(s)/ WSD |
|
ü |
ü |
Implemented |
- |
|
S8.5 |
To avoid
any odour and litter impact, accurate number of portable
toilets will be provided for workers on-site. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S8.5 |
The burning
of refuse on construction sites is prohibited by law. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
Air Pollution Control Ordinance (Cap 311) |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S8.7 |
To facilitate monitoring and control over the
contractors’ performance on waste
management, a waste inspection and audit
programme will be implemented throughout the
construction phase. |
All facilities/ During construction |
ET/ IEC |
|
ü |
|
Implemented |
- |
|
Ecology |
||||||||
|
S9.7 |
For slope mitigation works within the Clear Water Bay Country Park, to avoid tree felling and
damages to trees, the exact locations
of the flexible barrier foundation plates, soil nails and rock dowels can be adjusted during detailed design, and a setback distance from existing trees
is recommended to be
maintained as far as practical. A detailed specification describing
the exact locations of the flexible barrier foundation plates,
soil nails and rock dowels
will be prepared to illustrate how the setback distance from existing
trees would be implemented for tree
avoidance. |
Slope
mitigation works area/ During detailed design/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
- |
|
S9.7 |
Pruning of tree canopies along the alignment of the flexible barriers shall be limited to a minimum. |
Slope mitigation works area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
|
S9.7 |
The alignment of flexible barriers shall be
optimized to preserve all species of conservation interest and minimize the impact
to the existing vegetation as far as practicable. All individuals of
Marsdenia lachnostoma within the slope mitigation
areas shall be retained in- situ, by positioning the alignment of flexible barrier at a minimum 1.5m in a radius away from these individuals. |
Slope
mitigation works area/ During detailed design/ During construction |
Contractor(s) |
ü |
ü |
|
Implemented |
- |
|
S9.7 and 9.10 |
At the detailed design stage prior
to the commencement of the slope mitigation works, a vegetation
survey shall be carried out at the
slope mitigation areas within the Clear Water Bay Country Park to assess
the condition and identify the location of each individual of Marsdenia lachnostoma and other flora species of conservation interest that
may be directly affected by the
construction works. |
Slope
mitigation works area/ During detailed design/ During construction |
Contractor(s) |
ü |
|
|
Implemented |
- |
|
S9.7 |
Temporary fencing will
be installed to fence off the concerned species either in groups of individually within the works area and in the close proximity to prevent from
being damaged and disturbed during
construction. A sign identifying the site shall
be attached to the fence
and flagging tape shall be attached to the
individuals to visualize their locations. |
Slope mitigation works area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S9.7 and S9.10 |
A specification for fencing and demarcating individuals of Marsdenai lachnostoma (or other
flora species of conservation interest, if found) adjacent to the
proposed alignment of the flexible
barriers will be prepared to protect the species. |
Slope mitigation works area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S9.7 |
Induction training shall also be provided to all site personnel in order to brief them on this flora of
conservation interest including the
locations and their importance. |
Slope mitigation works area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S9.7 |
The resident site supervisory staff will closely monitor the conditions of concerned individuals
during construction of flexible
barriers in the close proximity. |
Slope mitigation works area/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S9.7 |
Erect fences along the boundary of the works area before the commencement of works to prevent vehicle
movements and encroachment of
personnel onto adjacent areas. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S9.7 |
Regularly check the work site boundaries to ensure that they are not breached and that damage does
not occur to surrounding areas. |
All area/
During construction |
Contractor(s)/ ET |
|
ü |
|
Implemented after
reminder |
- |
|
S9.7 |
Avoid any damage and
disturbance, particularly those caused by
filling and illegal dumping, to the surrounding habitats through proper management of waste
disposal. |
All area/
During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
|
S9.7 |
Reinstate
temporarily affected areas,
particularly the habitats of
plantation and shrubland-grassland immediately after completion of construction works, through on-site
tree/shrub planting. The tree/shrub species will be chosen
with reference to those in the surrounding area. |
All area/
During construction |
Contractor(s) |
|
ü |
|
To be Implemented |
- |
|
S9.7 |
Affected habitats within
the Clear Water
Bay Country Bay shall be reinstated by hydro-seeding and
planting of climbers and native shrub
seedlings where practical upon completion of the slope mitigation works. |
All area/
During construction |
Contractor(s) |
|
ü |
|
To be Implemented |
- |
|
Landscape & Visual |
||||||||
|
S11.10 & 11.11 |
The construction area and area allowed for temporary structures, such as the contractor’s office, will be minimized to a practical
minimum. (MM1) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S11.10 & 11.11 |
At the detailed design stage, the design team will seek to minimize the landscape footprint of the
Project and above ground
facilities, while satisfying all other requirements. (MM2) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S11.10 & 11.11 |
Design principles will be adopted to take into account the surrounding area, particularly Clear Water Bay Country Park behind and the nearby waterfront, with due consideration given to: - green roofs
where practical (i.e.
without equipment on the roof); - roadside planting; - aesthetic treatment of all structures; - vertical greening; - screen planting along application site; and -
landscape enhancement with amenity planting where practical including planting along the
edge (site boundary) fence
with native shrubs
where feasible, to reduce their
visual impact and blend them
into the surrounding landscape. (MM3) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented |
-- |
|
S11.10 & 11.11 |
All trees within the Project Site or the potential slope mitigation works area will be carefully
protected during construction
according to DEVB TCW No. 10/2013 - Tree Preservation
(MM4) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented after
reminder |
ETWB TCW No. 3/2006
- Tree Preservation. |
|
S11.10 & 11.11 |
No tree within
the Country Park will be felled. Trees
within the Site unavoidably affected by the works
will be transplanted where necessary and practical. For trees that need to be felled, compensatory planting will be provided to the satisfaction of relevant Government departments. A compensatory tree planting proposal including locations of tree compensation will be submitted to
seek relevant government department’s approval, in accordance with DEVB TC(W) No. 10/2013. (MM5) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented |
DEVB TC(W) No. 10/2013 |
|
S11.10 & 11.11 |
Any slope mitigation works necessary to address natural terrain hazards, will be minimized to
minimize any potential environmental impact
to the Country Park e.g. soil
nailing and rock stabilization will aim to avoid
existing trees e.g. should any
restoration of vegetation be necessary, the best planting matrix
with native species will be established, with the aim of resembling
the existing vegetation. (MM6) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
N/A |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S11.10 & 11.11 |
Dredging works for the installation of intake structures and outfall diffusers should be minimized to
avoid or reduce any potential
environmental impacts to as low as reasonably practicable (ALARP). The intake and outfall structures (e.g. intake openings and diffuser heads)
will be prefabricated and transferred
to site for installation. (MM7) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S11.10 & 11.11 |
All night-time lighting will be reduced
to a practical minimum both in terms of number of level and
will be hooded and directional.
(MM8) units and lux level and will
be hooded and directional. (MM8) |
All area/ Detailed design/ During construction/ During operation |
WSD/ Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
Landfill Gas Hazard |
||||||||
|
S12.7 |
During all works,
safety procedures should
be implemented to minimise
the risks of fires and explosions, asphyxiation of workers and toxicity effects resulting from
contact with contaminated soil
and groundwater. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
During trenching and excavation as well as creation of confined spaces at near to or below
ground level, precautions should be
clearly laid down and rigidly Gas detection
equipment and appropriate breathing apparatus should be available and used when entering confined spaces or trenches deeper than 1 meter. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
The Contractor should make the workers are aware of potential hazards of working
in confined spaces
(any chamber, manhole or culvert which is large enough
to permit access to personnel).
Such work in confined spaces is controlled by the Factories and Industrial Undertakings (Confined Spaces) Regulations of the Factories and
Industrial Undertakings Ordinance. Following the Safety Guide
to Working in Confined Spaces ensures compliance with the above
regulations. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
Safety officers, specifically trained with regard to landfill gas and leachate related hazards and the
appropriate actions to take in adverse circumstances, should be present
on the site throughout the works, in particular, when works
are undertaken below grade. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
All personnel who work on site and
all visitors to the site
should be made aware of the possibility of ignition of gas in the vicinity of the works, the
possible presence of contaminated water and the need to avoid physical
contact with it. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S12.7 |
Monitoring for landfill gas should be undertaken in all excavations, manholes, chambers
(particularly during pipe jacking)
and any confined spaces through the use of an intrinsically safe portable instrument, appropriately calibrated and capable of measuring the
concentrations of methane. carbon
dioxide and oxygen. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
Monitoring
frequency and areas to be monitored should be specified prior to commencement of groundwork, either by the Safety Officer, or by an appropriately qualified person. All measurements
should be recorded and documented. |
All area/
Detailed design/ During
construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
Proceed drilling
with adequate care and precautions against
the potential hazards which may be encountered. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
Prior to the commencement of the site works, the drilling contractor should devise a 'method-of-
working' statement covering all
normal and emergency procedures (including but not
limited to number of operatives, experience and special skills of operatives, normal method of
operations, emergency procedures,
supervisors responsibilities, storage and use of safety equipment, safety procedures and signs, barriers and guarding). The site
supervisor and all operatives must
be familiar with
this statement. |
All area/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
Where below ground service entries are necessary
to the Incoming Switchgear Room,
132 kV Substation and Chlorine Store
(I) and (II), the entry point should be sealed to prevent gas entry. In addition, any below grade cable trenches entering the Incoming Switchgear Room
and 132 kV Substation can
become the pathway for landfill gas and hence grilled metal covers should be used. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
N/A |
- |
|
S12.7 |
It is recommended regular landfill gas monitoring should be carried out at the Incoming Switchgear
Room, 132 kV Substation and
Chlorine Store (I) and (II). The monitoring
frequency will be monthly for the first
year of operation. If the monitoring results show no sign of
landfill gas migration, reduce the
monitoring frequency to once every six months. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
N/A |
- |
|
EIA Reference |
Recommended
Environmental Protection Measures/ Mitigation Measures |
Objectives of the
recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
||
|
D |
C |
O |
||||||
|
S12.7 |
The manholes and utility pits
within the Project
Site and along
the freshwater mains. Each manhole/ utility pit should be monitored with two measurements (at mid
depth and base). Each measurement should be monitored for a minimum of 10 minutes. A steady reading and peak
reading should be recorded at each
manhole/ utility pit and for each measurement. The need for venting the manhole/
utility pit and further monitoring
will be reviewed after the initial monitoring. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
|
S12.7 |
All construction, operation and maintenance personnel working
on-site as well as visitors should be made aware of the hazards of landfill gas and its possible
presence on-site. This should be achieved through
a combination of posting warning
signs in prominent places and also by access to detailed information on landfill gas hazards and
the designs and procedural means by
which these hazards are being minimized
on-site. |
All area/ Detailed design/ During construction/ During operation |
Contractor(s) |
ü |
ü |
ü |
Implemented |
- |
Note: D - Design stage
C - Construction O - Operation
Appendix D
Water Quality Monitoring Graphical Presentation
Appendix D.1
Weather Condition
Appendix D.2
Key Activities Carried Out During the Reporting Quarter
|
Administration Building -
Sealing up wall opening -
External wall painting works -
Construction of block
work for pipe
duct. -
Installation of glass
door for laboratory Minor Installation of
building services, cable laying and
termination, Photovoltaic Panel Installation, Testing & Commissioning |
|
Chemical building -
Installation of Irrigation system -
Construction of hose
reel cabinet. -
Defect rectification |
|
Main Electrical &
Central Chiller Plant
Building -
Installation of Roof
Tile for Fuel
Tank Room -
Minor Installation of building services, electrical switchboard, cable
laying, pressure test |
|
ActiDAFF -
Underground utility construction work -
Installation of drainpipe on corridor -
Minor Installation of mechanical equipment, installation of building
services, Minor cable laying and termination, Installation of Lightning
System, Installation of Fiber Reinforced Polymer Cover Installation, Testing
& Commissioning |
|
Product Water Storage Tank Building -
Underground utility construction work -
Water Test in Tank A and defect rectification -
Waterproofing work at Roof Slab on Tank
A -
Tank A water
test and defect
rectification -
Installation of building services, cable laying
and termination, Testing
& Commissioning |
|
OSCG Building -
Installation of Railing
on Brine Maker
Tank -
Protective Coating for dangerous goods
Rooms -
Installation of building services, mechanical equipment and cable
laying and termination, testing and commissioning |
|
Reverse Osmosis Building -
Placing Soil Mix at Roof -
Installation of Glass
House -
Underground utility construction work -
Installation of building services, electrical switchboard of cable laying
and termination, Minor Installation of mechanical equipment and raised
floor, testing and commissioning, Photovoltaic Panel Installation |
|
Post Treatment Building -
Installation of Cat Ladders in Irrigation Tanks -
Placing Soil Mix at Roof -
Curb Construction for Rescue Opening
at Water Tanks -
Minor Installation of building services, Minor Installation of
mechanical equipment, Cable laying and termination, Pressure Test |
|
Inspection corridor -
Construction of roof
tiling -
Internal decoration and
finishing works -
Installation of building services, Lift Installation |
|
CO2 Tanks -
Tank surface cleaning, testing and commissioning Combined Shaft and Pump
room -
CCTV Installation, Installation of Lightning
System, Minor building services Installation, testing and commissioning -
Internal finishing, defect
rectification Guard House -
Installation of Building Services -
Workshop construction work -
Architectural
Builders Works and Finishes
Other -
Master meter Room
Architectural Builders Works
and Finishes -
Open Channel and Wave deflector Wall -
Glass Roof and Glass Canopy
installation at elevated walkway -
Security Fence footing construction work -
Manhole 5 Glass
Reinforced Plastic Pipe
Installation work -
Underground utility rectification work -
Road Construction -
Traffic signage work -
Footpath Construction -
Landscape Construction -
Landscape planting work -
Irrigation System Construction -
Slope work - Shotcreting; Rock
anchor installation, Rock
break -
Water Pressure Test
for Fire Services and Plumbing System -
Open Channel and Wave deflector Wall -
Traffic signage work |
|
- Administration Building - Installation of Internal partition wall - External wall finishing works - Construction of block work for meter cabinet - Installation of glass door for laboratory - Minor Installation of building services, cable laying and termination, Photovoltaic Panel Installation, Testing & Commissioning |
|
- Chemical building - Roof planting works - Construction of hose reel cabinet. - Defect rectification |
|
- Main Electrical & Central Chiller Plant Building - Minor Installation of building services, electrical switchboard, cable laying, pressure test |
|
- ActiDAFF - Underground utility construction work - Rectification works for roof tiles - Minor Installation of mechanical equipment, installation of building services, Minor cable laying and termination, Installation of Lightning System, Installation of Fibre Reinforced Polymer Cover Installation, Testing & Commissioning |
|
- Product Water Storage Tank Building - Waterproofing work at Roof Slab on Tank A - Tank A defect rectification, Water proofing, - Installation of building services, cable laying and termination, Testing & Commissioning - Underground utility construction work (Sewerage and Waterworks) - |
|
- OSCG Building - Installation of Promat Board in Skid Room - Installation of Railing on Brine Maker Tank Installation of building services, mechanical equipment and cable laying and termination, testing and commissioning |
|
- Reverse Osmosis Building - Sanitary Ware Installation in Toilet - Wall Painting and False Ceiling Installation in Toilet - Installation of Water Meter Cabinets - Construction of External Concrete Walls - Underground utility construction work - Installation of building services, electrical switchboard of cable laying and termination, Minor Installation of mechanical equipment and raised floor, testing and commissioning, Photovoltaic Panel Installation |
|
- Post Treatment Building - Installation of Cat Ladders in Irrigation Tanks - Placing Soil Mix at Roof - Curb Construction for Rescue Opening at Water Tanks - Minor Installation of building services, Minor Installation of mechanical equipment, Cable laying and termination, Pressure Test |
|
- Inspection corridor - Construction of roof tiling - Internal decoration and finishing works - Installation of building services, Lift Installation |
|
- Combined Shaft and Pump room - CCTV Installation, Installation of Lightning System, Minor building services Installation, testing and commissioning - Internal finishing, defect rectification - Guard House - Installation of Building Services - Guard House B Guard House, Workshop construction work - Other - Underground utility rectification work (Manhole and Draw pit) - - Watermain installation works at CLP 132 Kv Substation - Security Fence footing construction work - Light Pole installation work - Road Construction - Footpath Construction - Landscape Construction - Irrigation System installation - Water Pressure Test for Fire Services and Plumbing System - Landscape planting work - Traffic signage work - Cladding installation for Elevated Walkway - Slope work -Rock anchors installation, Rock break, Concreting - Open Channel and Wave deflector Wall |
|
Administration Building - Installation of signage - Installation of ceiling - Painting works - Installation of sanitary fitting - Installation of vinyl flooring - Installation of Aluminium Fins - Installation of Internal partition wall and ceiling - External wall finishing works - Installation of AP doors and cat ladders - Installation of wood decking - Minor Installation of building services, cable laying and termination, Photovoltaic Panel Installation, Testing & Commissioning |
|
Chemical building - Roof planting works - Defect rectification |
|
Main Electrical & Central Chiller Plant Building - Minor Installation of building services, electrical switchboard, cable laying, pressure test - Ladder and Cover installation at Roof |
|
ActiDAFF - Rectification works for roof tiles - Installation of signage - Minor Installation of mechanical equipment, building services, minor cable laying and termination, Installation of Fibre Reinforced Polymer Cover, Testing & Commissioning |
|
Product Water Storage Tank Building - Installation of signage - Installation of cladding works - Tiling work at Roof Slab on Tank A - Ladder and Cover installation at Roof - Roof Tiles installation - Minor Installation of building services, cable laying and termination, Testing & Commissioning |
|
OSCG Building - Installation of Promat Board in Skid Room - Installation of cladding works - Installation of Railing on Brine Maker Tank - Installation of building services, mechanical equipment and cable laying and termination, testing and commissioning |
|
Reverse Osmosis Building - Installation of AP doors - Installation of sanitary fitting - Sanitary Ware Installation in Toilet - Tiling Work in Toilet - Installation of Water Meter Cabinets - Installation of building services, electrical switchboard of cable laying and termination, Minor Installation of mechanical equipment and raised floor, testing and commissioning, Photovoltaic Panel Installation |
|
Post Treatment Building - Installation of Cat Ladders in Irrigation Tanks - Green Roof - Minor Installation of building services, Minor Installation of mechanical equipment, Cable laying and termination, Pressure Test |
|
Inspection corridor - Installation of cat ladder - Internal decoration and finishing works |
|
Combined Shaft and Pump room - Minor cable laying and termination, testing and commissioning - Defect rectification Guard House - Installation of Building Services, testing and commissioning Slope Work - Rock Dowel Installation - Buttress Construction - Wire Mesh Laying - Drilling; Rock anchors installation, Rock break, Concreting Other - Watermain installation works at CLP 132 Kv Substation - Underground utility rectification work for Manhole and Draw pit - Underground utility Construction Work for Watermain water - Underground utility repair Work for Sewerage, Watermains work) - Security Fence footing construction work - Light Pole installation work - Road Construction - Footpath Construction - Landscape Construction - Irrigation System installation - Water Pressure Test for Fire Services and Plumbing System - Landscape planting work - Traffic signage work - Workshop construction - Cladding installation for Elevated Walkway |
|
- Wave deflector Wall |
|
Administration Building - Installation of ceiling - Painting works - Installation of sanitary fitting - Installation of vinyl flooring - Installation of Aluminium Fins - Installation of Internal partition wall and ceiling - External wall finishing works - Installation of AP doors and cat ladders - Installation of wood decking - Minor Installation of building services, cable laying and termination, Photovoltaic Panel Installation, Testing & Commissioning |
|
Chemical building - External wall painting works - Defect rectification |
|
Main Electrical & Central Chiller Plant Building - Minor Installation of building services, electrical switchboard, cable laying, pressure test - Ladder and Cover installation at Roof |
|
ActiDAFF - Sealing gap and wall openings - Installation of signage - Minor Installation of mechanical equipment, building services, minor cable laying and termination, Installation of Fibre Reinforced Polymer Cover, Testing & Commissioning |
|
Product Water Storage Tank Building - Installation of signage - Installation of cladding works - Tiling work at Roof Slab on Tank A - Ladder and Cover installation at Roof - Roof Tiles installation - Minor Installation of building services, cable laying and termination, Testing & Commissioning |
|
OSCG Building - Core Opening at Cladding - Installation of cladding works - Installation of Railing on Brine Maker Tank - Installation of building services, mechanical equipment and cable laying and termination, testing and commissioning and pressure test |
|
Reverse Osmosis Building - Installation of AP doors - Installation of sanitary fitting - Sanitary Ware Installation in Toilet - Tiling Work in Toilet - Installation of Water Meter Cabinets - Installation of building services, electrical switchboard of cable laying and termination, Minor Installation of mechanical equipment and raised floor, testing and commissioning, Photovoltaic Panel Installation |
|
Post Treatment Building - DFMA Gap Seal Up - Minor Installation of building services, Minor Installation of mechanical equipment, Cable laying and termination, Pressure Test |
|
Inspection corridor - Interior painting works - Interior fitting out works |
|
Combined Shaft and Pump room - Installation of outfall grating and defect rectification . - Minor cable laying and termination, testing and commissioning Guard House - Guard house A defect rectification - Guard house B defect rectification - Minor Cable laying and Termination Slope Work* (Suspended due to landslides occurred during the rainstorm since 4 May 2024) - Rock Dowel Installation - Buttress Construction - Wire Mesh Laying - Drilling; Rock anchors installation, Rock break, Concreting Other - Watermain installation works at CLP 132 Kv Substation - Underground utility rectification work for Manhole and Draw pit - Underground utility Construction Work for Watermain water - Underground utility repair Work for Sewerage, Watermains work - Security Fence footing construction work - Light Pole installation work - Road Construction - Footpath Construction - Landscape Construction - Irrigation System installation - Landscape planting work - Traffic signage work - Workshop construction work, Tiling work, green roof and irrigation pipe - Workshop Building Services Installation, cable laying and termination |
|
- Tiling work and cladding installation for Elevated Walkway - Master meter defect rectification - Wave deflector Wall |
*Remark: No site activity for the slope
works since 4 May 2024 due to number of landslides
occurred during the rainstorm.
Appendix D.3
Other Factor Might Affect the Monitoring Results
|
Other Factors might affect the monitoring results |
|||
|
Reporting Period |
|||
|
Feb 2024 |
Mar 2024 |
Apr 2024 |
May 2024 |
|
N/A |
N/A |
N/A |
The incidents of
sediment plume and trespassers were reported on 9, 10, 13 and 30 May 2024 from the nearby lands
(Country Park). |
Appendix E
Summary of Exceedances
|
Date |
Station |
Tide |
SS Level (mg/L) |
Action
Level |
Limit Level |
|
02/03/2024 |
WSR2 |
Flood |
5.17 |
Y |
Y |
|
WSR3 |
4.33 |
Y |
Y |
||
|
WSR4 |
5.00 |
Y |
Y |
||
|
WSR16 |
4.50 |
Y |
Y |
||
|
WSR33 |
4.83 |
Y |
Y |
||
|
WSR36 |
3.83 |
Y |
N |
||
|
WSR37 |
4.00 |
Y |
N |
||
|
NF1 |
4.17 |
Y |
Y |
||
|
NF2 |
8.00 |
Y |
Y |
||
|
NF3 |
5.17 |
Y |
Y |
||
|
05/03/2024 |
WSR16 |
Flood |
3.33 |
Y |
N |
|
07/03/2024 |
WSR3 |
Ebb |
4.17 |
Y |
Y |
|
WSR33 |
3.42 |
Y |
N |
||
|
09/03/2024 |
WSR37 |
Ebb |
5.00 |
Y |
Y |
|
NF2 |
7.00 |
Y |
Y |
||
|
12/03/2024 |
WSR4 |
Flood |
4.67 |
Y |
N |
|
14/03/2024 |
WSR1 |
Flood |
6.83 |
Y |
Y |
|
WSR2 |
7.33 |
Y |
Y |
||
|
WSR3 |
4.83 |
Y |
N |
||
|
WSR36 |
6.33 |
Y |
Y |
||
|
16/03/2024 |
WSR4 |
Flood |
3.75 |
Y |
Y |
|
WSR16 |
3.33 |
Y |
N |
||
|
WSR33 |
3.75 |
Y |
Y |
||
|
WSR36 |
4.08 |
Y |
Y |
||
|
NF1 |
3.42 |
Y |
Y |
||
|
19/03/2024 |
WSR4 |
Flood |
5.33 |
Y |
Y |
|
WS37 |
3.50 |
Y |
N |
||
|
NF1 |
7.83 |
Y |
Y |
||
|
23/03/2024 |
WSR1 |
Ebb |
3.83 |
Y |
N |
|
WSR3 |
3.67 |
Y |
N |
||
|
WSR4 |
3.83 |
Y |
N |
||
|
26/03/2024 |
NF1 |
Ebb |
4.50 |
Y |
N |
|
NF3 |
4.50 |
Y |
N |
||
|
28/03/2024 |
WSR36 |
Flood |
5.08 |
Y |
Y |
|
30/03/2024 |
WSR1 |
Flood |
5.08 |
Y |
Y |
|
WSR3 |
8.00 |
Y |
Y |
||
|
WSR4 |
9.33 |
Y |
Y |
||
|
WSR16 |
5.92 |
Y |
Y |
||
|
WSR36 |
6.67 |
Y |
Y |
||
|
WSR37 |
7.33 |
Y |
Y |
|
Date |
Station |
Tide |
SS Level (mg/L) |
Action
Level |
Limit Level |
|
02/04/2024 |
WSR3 |
Flood |
4.33 |
Y |
Y |
|
WSR4 |
5.33 |
Y |
Y |
||
|
WSR37 |
4.17 |
Y |
N |
||
|
NF1 |
6.17 |
Y |
Y |
||
|
NF2 |
6.83 |
Y |
Y |
||
|
NF3 |
6.67 |
Y |
Y |
||
|
04/04/2024 |
NF2 |
Flood |
4.83 |
Y |
Y |
|
06/04/2024 |
NF2 |
Ebb |
5.00 |
Y |
Y |
|
NF3 |
5.08 |
Y |
Y |
||
|
09/04/2024 |
WSR3 |
Ebb |
5.83 |
Y |
N |
|
WSR4 |
5.33 |
Y |
N |
||
|
11/04/2024 |
WSR16 |
Flood |
5.75 |
Y |
N |
|
WSR33 |
7.42 |
Y |
Y |
||
|
WSR37 |
5.92 |
Y |
N |
||
|
NF2 |
6.50 |
Y |
N |
||
|
NF3 |
6.58 |
Y |
N |
||
|
13/04/2024 |
WSR1 |
Flood |
4.50 |
Y |
N |
|
WSR2 |
4.58 |
Y |
N |
||
|
WSR4 |
4.33 |
Y |
N |
||
|
WSR16 |
5.00 |
Y |
Y |
||
|
NF1 |
4.67 |
Y |
N |
||
|
16/04/2024 |
WSR4 |
Flood |
5.00 |
Y |
N |
|
WSR16 |
5.33 |
Y |
N |
||
|
WSR33 |
6.00 |
Y |
Y |
||
|
WSR36 |
6.00 |
Y |
Y |
||
|
18/04/2024 |
NF2 |
Flood |
5.33 |
Y |
N |
|
23/04/2024 |
WSR1 |
Ebb |
7.17 |
Y |
Y |
|
WSR2 |
6.83 |
Y |
Y |
||
|
WSR3 |
6.67 |
Y |
Y |
||
|
WSR4 |
8.00 |
Y |
Y |
||
|
WSR16 |
5.42 |
Y |
Y |
||
|
NF1 |
7.50 |
Y |
Y |
||
|
NF2 |
6.17 |
Y |
Y |
||
|
NF3 |
7.67 |
Y |
Y |
||
|
25/04/2024 |
WSR3 |
Ebb |
3.42 |
Y |
N |
|
WSR33 |
3.58 |
Y |
Y |
||
|
27/04/2024 |
WSR2 |
Ebb |
3.17 |
Y |
N |
|
WSR37 |
3.42 |
Y |
Y |
|
Date |
Station |
Tide |
SS Level
(mg/L) |
Action Level |
Limit Level |
|
02/05/2024 |
NF2 |
Flood |
3.17 |
Y |
N |
|
07/05/2024 |
WSR4 |
Ebb |
3.42 |
Y |
N |
|
14/05/2024 |
WSR4 |
Ebb |
4.17 |
Y |
Y |
|
16/05/2024 |
WSR2 |
Flood |
3.25 |
Y |
N |
|
WSR16 |
3.50 |
Y |
Y |
||
|
18/05/2024 |
NF3 |
Ebb |
3.17 |
Y |
N |
|
23/05/2024 |
WSR33 |
Ebb |
3.08 |
Y |
N |
|
WSR37 |
3.08 |
Y |
N |
||
|
NF1 |
3.08 |
Y |
N |
||
|
25/05/2024 |
WSR3 |
Flood |
3.50 |
Y |
N |
|
30/05/2024 |
WSR3 |
Flood |
4.42 |
Y |
Y |
|
WSR16 |
4.83 |
Y |
Y |
||
|
WSR33 |
4.50 |
Y |
Y |
||
|
WSR37 |
5.67 |
Y |
Y |
||
|
NF1 |
4.50 |
Y |
Y |
||
|
NF2 |
3.83 |
Y |
Y |
||
|
NF3 |
5.33 |
Y |
Y |
Appendix F
Waste Flow Table
Appendix F - Monthly
Summary Waste Flow Table
Name of Department: WSD Contract No.: 13/WSD/17
Monthly Summary Waste Flow Table for 2024 (year)
Month Actual Quantities of Inert C&D Materials Generated Monthly Actual Quantities of C&D Wastes Generated Monthly Total Quantity Generated Hard Rock and Large Broken Concrete Reused in the Contract Reused in other Projects Disposed as Public Fill Imported Fill Metals Paper/ cardboard packaging Plastics (see Note 3) Chemical Waste Others, e.g. general refuse (in '000kg) (in '000kg) (in '000kg) (in '000kg) (in '000kg) (in '000kg) (in '000 kg) (in '000kg) (in '000kg) (in '000kg) (in '000kg) Jan 4978.345 0.000 0.000 4667.745 310.600 0.000 0.000 0.000 0.000 0.000 77.800 Feb 22561.796 0.000 0.000 21883.006 678.790 0.000 0.000 0.000 0.000 0.000 53.480 Mar 81.140 0.000 0.000 0.000 81.140 0.000 0.000 0.000 0.000 0.000 52.260 Apr 57.130 0.000 0.000 0.000 57.130 0.000 0.000 0.000 0.000 0.000 47.390 May 91.370 0.000 0.000 0.000 91.370 0.000 0.000 0.000 0.000 0.000 77.260 Jun Sub-total 27769.781 0.000 0.000 26550.751 1219.030 0.000 0.000 0.000 0.000 0.000 308.190 Jul Aug Sep Oct Nov Dec Total 27769.781 0.000 0.000 26550.751 1219.030 0.000 0.000 0.000 0.000 0.000 308.190
w
Notes: (1) The performance targets
are given in Section 1.69 of Specification B
(2) The waste flow table shall also include C&D
materials that are specified in the Contract
to be imported for use at the Site.
(3) Plastics refer to plastic
bottles/containers, plastic sheets/
foam from packaging material
Appendix G
Complaint Log
Table G1 Statistical Summary of Environmental Complaints
|
Reporting Period |
Environmental Complaint Statistics |
||
|
Frequency |
Cumulative |
Complaint Nature |
|
|
1 March 2024 - 31 May 2024 |
0 |
2 |
N/A |
Table G2 Statistical Summary of Environmental Summons
|
Reporting Period |
Environmental Summons Statistics |
||
|
Frequency |
Cumulative |
Details |
|
|
1 March 2024 - 31 May 2024 |
0 |
0 |
N/A |
Table G3 Statistical Summary of Environmental Prosecution
|
Reporting Period |
Environmental Prosecution Statistics |
||
|
Frequency |
Cumulative |
Details |
|
|
1 March 2024 - 31 May 2024 |
0 |
0 |
N/A |
Appendix H
Event/ Action Plan for Water Quality Exceedance
Table G1 Event and Action Plan for Water Quality Monitoring
Appendix I
Event/
Action Plan for Construction Noise Exceedance
Table E1 Event and Action Plan for Construction Noise Monitoring
Appendix J
Event/ Action Plan for Pre-Operation Phase Coral Monitoring
Exceedance
Table E3 Event and Action Plan for Pre-Operation Phase Coral Monitoring
