Revision History
|
Rev. |
Description of Modification |
Date |
|
1. |
First Issue for Comments |
22/08/2023 |
|
2. |
Second Issue for Comments |
29/08/2023 |
|
Rev. |
Description of Modification |
Date |
|
1. |
First Issue for Comments |
22/08/2023 |
|
2. |
Second Issue for Comments |
29/08/2023 |
CONTENTS
Summary of Monitoring Exceedance, Complaints, Notification of Summons and Prosecutions 24
|
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 |
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/A) 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 13th 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 2023 to 31 May 2023.
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 - Installation of glass balustrade, metal cladding, building services, electrical switchboard, lift, cable laying - carrying out interior finishes at 2/F, 3/F and 4/F - Construction of staircase - Construction of block wall in the pipe duct. |
|
Chemical building - Installation of handrail, permanent doors, building services, mechanical equipment, and cable laying - Construction of staircase - Underground utility construction work |
|
Main Electrical & Central Chiller Plant Building - Construction of fuel tank room - Installation metal Doors, chillers, building services, electrical switchboard, cable laying |
|
ActiDAFF - Underground utility construction work - Laying of roof floor screed and tiles |
|
- Construction of plinths for saturator tanks - Erection and dismantling of scaffolding, installation of mechanical equipment and piping, bubble test - Installation of underdrain |
|
Product Water Storage Tank Building - Resin Injection Work & Water Test for 1 Water Tanks - Installation of cat ladders in Water Tanks, and door -
Installation of louvres, metal
cladding, building services, cable
laying, mechanical equipment, steel pipe - Underground utility construction |
|
OSCG Building - Installation of Design for Manufacturing and Assembly Panel and metal door - Underground utility construction work - Installation of building services and mechanical equipment |
|
Reverse Osmosis Building - Installation of Design for Manufacturing and Assembly Panels at East Sides - Installation of metal door, metal cladding, hand railings, Louvres & Windows - Installation of building services, electrical switchboard, mechanical equipment, steel pipe, Glass Reinforced Plastics (GRP) pipe and cable laying - Underground utility construction work |
|
Post Treatment Building - Installation of Louvres & Windows, metal door and cat ladders - Installation of Design for Manufacturing and Assembly Panels - Installation of building services, mechanical equipment and GRP pipe - Underground utility construction work |
|
Inspection corridor - Construction of bondek for segments 7 - construction of staircase 8 |
|
CO2 Tanks - Installation of pipes and building services Outfall Shaft -
GRP Diffuser Pipe
installation and rock
material back fill - Dredging for diffuser pipe; Glass Reinforced Plastics Diffuser Pipe installation; rock material back fill - Shafts backfill rock and excavation and lateral support (ELS) removal Combined Shaft -
Installation of building services, electrical equipment, switchboard, cable laying, mechanical equipment and pipes,
stoplogs and band
screens - Underground utility construction work -
Staircases and internal finishing - Waterproofing works |
|
Pump room - internal finishing and screeding Other -
Excavation at slope
toe and access
erection, Soil anchor
and grouting construction -
Foundation & structure construction at Elevated Walkway - Watermain works at CLP 132 kV Substation -
Concrete Breaking, Structure Construction at Seawall - Rock anchor installation; rock drilling, grouting |
A6. The major environmental impacts brought by the above construction works include:
- Construction dust and noise generation from marine construction works, excavation works, excavation works, construction works, rock cutting works and pipe pilling driving works;
- Waste generation from the construction activities
- Impact on water quality from marine construction works and inland construction works
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; and
- Deployment of temporary silt curtain in the area where marine construction works were conducted and deployment of water sedimentation tanks for treatment of wastewater at inland areas before discharge
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. The EM&A works for water quality were conducted during the reporting period in accordance with the EM&A Manual.
A10. Water quality monitoring was conducted as scheduled in the reporting period. One hundred and twenty-nine (129) action level exceedances and one hundred and six (106) limit level exceedances for suspended solids (SS) of impact water quality monitoring were recorded in the reporting period. All action and limit level exceedances were concluded non-project related.
A11. In this reporting period, 146 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780). No action and limit level exceedance for methane, oxygen and carbon dioxide was recorded.
A12. Weekly site inspections of the construction works were also carried out by ET to audit the mitigation measures implementation status. Thirteen (13) times of weekly Joint site inspections were carried out by ET and IEC.
A13. 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.
|
EM&A Activities |
Mar 2023 |
Apr 2023 |
May 2023 |
|
Noise Monitoring |
N/A |
N/A |
N/A |
|
Water Quality Monitoring |
2, 5, 7, 9, 11, 14, 16, 18, 21, 23, 25, 28 and 30 March 2023 |
1, 4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27 and 29 April 2023 |
2, 4, 6, 9, 11, 13, 16, 18, 20, 23, 25, 27 and 30 May 2023 |
|
Landfill Gas monitoring |
1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30 and 31 March 2023 |
3, 4, 6, 11, 23, 13, 14, 15, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29 April 2023 |
2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23,24, 25, 26, 27, 29, 30 and 31 May 2023 |
|
Environmental Site Inspection |
7, 14, 22 and 31 March 2023 |
4, 11, 18 and 24 April 2023 |
2, 9, 16, 23 and 30 May 2023 |
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 |
129 |
106 |
235 |
0 |
0 |
0 |
|
|
pH |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Salinity |
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
A14. No environmental complaint, notifications of summons or prosecution was received during the reporting period.
Reporting Change
A15. 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/A) to Water Supplies Department (WSD); and granted the Further Environmental Permit (No. FEP-01/503/2015/A) to AJCJV for the Contract.
This is the 13th Quarterly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 March 2023 to 31 May 2023.
The Project Organization structure for Construction Phase is presented in Figure 1.1.
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. |
|
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 |
|
|
Acuity Sustainability Consulting Limited |
Environmental Team Leader |
Jacky Leung |
2698-6833 |
|
ANewR Consulting Limited |
Independent Environmental Checker (IEC) |
Louis Kwan |
2618-2831 |
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 - Installation of glass balustrade, metal cladding, building services, electrical switchboard, lift, cable laying - carrying out interior finishes at 2/F, 3/F, and 4/F - Construction of staircase - Construction of block wall in the pipe duct. |
|
Chemical building - Installation of handrail, permanent doors, building services, mechanical equipment, and cable laying - Construction of staircase - Underground utility construction work |
|
Main Electrical & Central Chiller Plant Building - Construction of fuel tank room - Installation metal Doors, chillers, building services, electrical switchboard, cable laying |
|
ActiDAFF - Underground utility construction work - Laying of roof floor screed and tiles - Construction of plinths for saturator tanks - Erection and dismantling of scaffolding, installation of mechanical equipment and piping, bubble test - Installation of underdrain |
|
Product Water Storage Tank Building - Resin Injection Work & Water Test for 1 Water Tanks - Installation of cat ladders in Water Tanks, and door -
Installation of louvres, metal
cladding, building services, cable
laying, mechanical
equipment, steel pipe - Underground utility construction |
|
OSCG Building - Installation of Design for Manufacturing and Assembly Panel and metal door - Underground utility construction work - Installation of building services and mechanical equipment |
|
Reverse Osmosis Building - Installation of Design for Manufacturing and Assembly Panels at East Sides - Installation of metal door, metal cladding, hand railings, Louvres & Windows - Installation of building services, electrical switchboard, mechanical equipment, steel pipe, Glass Reinforced Plastics (GRP) pipe and cable laying - Underground utility construction work |
|
Post Treatment Building - Installation of Louvres & Windows, metal door and cat ladders - Installation of Design for Manufacturing and Assembly Panels - Installation of building services, mechanical equipment and GRP pipe - Underground utility construction work |
|
Inspection corridor - Construction of bondek for segments 7 - construction of staircase 8 |
|
CO2 Tanks - Installation of pipes and building services Outfall Shaft -
GRP Diffuser Pipe
installation and rock
material back fill - Dredging for diffuser pipe; Glass Reinforced Plastics Diffuser Pipe installation; rock material back fill - Shafts backfill rock and excavation and lateral support (ELS) removal Combined Shaft -
Installation of building services, electrical equipment, switchboard, cable laying,
mechanical equipment and pipes, stoplogs and band screens |
|
- Underground utility construction work -
Staircases and internal finishing - Waterproofing works Pump room - internal finishing and screeding Other -
Excavation at slope
toe and access
erection, Soil anchor
and grouting construction -
Foundation & structure construction at Elevated Walkway - Watermain works at CLP 132 kV Substation -
Concrete Breaking, Structure Construction at Seawall - Rock anchor installation; rock drilling, grouting |
A summary of the valid permits, licences, and /or notifications on environmental protection for this Project is presented in Table 1.2.
|
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 |
- |
|
|
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 |
- |
|
|
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 |
- |
|
Marine Dumping
Permits |
||||
|
EP/MD/23-053 |
07/12/2023 |
30/03/2023 |
Expired in the reporting period |
- |
|
Permit/ Licences |
Valid Period |
Status |
Remark |
|
|
From |
To |
|||
|
EP/MD/23-122 |
31/03/2023 |
30/06/2023 |
Valid |
|
|
Vessel CHITs
for fill disposal |
||||
|
7039300 |
14/02/2023 |
08/05/2023 |
Expired in the reporting period |
- |
|
Construction Noise
Permit |
||||
|
GW-RE1338-22 |
22/12/2022 |
21/06/2023 |
Valid |
- |
The status for all environmental aspects is presented in Table 1.3.
|
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 |
|
Impact Monitoring |
On-going |
|
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 |
On-going |
|
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, 146 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780). No exceedance of action or limit level for methane, oxygen and carbon dioxide was observed |
|
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 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.
|
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.
|
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. No noise monitoring station was located within a radius of 300m of the Project site as shown in Figure 2.4, no impact monitoring for noise impact 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.
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;
- Operation phase - first year upon commissioning; 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
|
Parameters |
Unit |
Abbreviation |
|
In-situ measurements |
||
|
Dissolved oxygen |
mg/L |
DO |
|
Temperature |
oC |
- |
|
pH |
- |
- |
|
Turbidity |
NTU |
- |
|
Salinity |
0/00 |
- |
|
Laboratory measurements |
||
|
Suspended Solids |
mg/L |
SS |
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.
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 3.3.
|
Parameters |
Action |
Limit |
|
|
Construction Phase
Impact Monitoring |
|||
|
DO in mg/L |
Surface and Middle |
Surface and Middle |
|
|
|
7.30 mg L-1 |
4 mg L-1 |
|
|
|
Bottom |
Bottom |
|
|
|
7.31 mg L-1 |
2 mg L-1 |
|
|
|
Tung Lung Chau Fish Culture Zone |
Tung Lung Chau Fish Culture Zone |
|
|
|
5.1 mgL-1 or level at control station |
5.0 mgL-1 or level at control station |
|
|
|
(Whichever the lower) |
(Whichever the lower) |
|
|
SS in |
mg/L |
5.00 mg L-1 or 20% exceedance of |
6.00 mg L-1 or 30% exceedance of |
|
(Depth- |
|
value at any impact station compared |
value at any impact station |
|
averaged) |
|
with corresponding data from control |
compared with corresponding data |
|
|
|
station |
from control station |
|
Turbidity in NTU |
2.41 NTU or 20% exceedance of value |
2.84 NTU or 30% exceedance of |
|
|
(Depth- |
at any impact station compared with |
value at any impact station |
|
|
averaged) |
corresponding data from control |
compared with corresponding data |
|
|
|
station |
from control station |
|
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.
General water quality monitoring at the ten monitoring stations (CE, CF, WSR1, WSR2, WSR3, WSR4, WSR16, WSR33, WSR36 and WSR37) were conducted as scheduled in the reporting month.
One hundred and twenty-nine (129) of the general water quality monitoring results of suspended solids (SS) obtained had exceeded the Action Level. One hundred and six (106) of the general water quality monitoring results of SS obtained during the reporting quarter had exceeded the Limit Level.
Investigation on the reason of exceedance has been carried out, where the exceedances of SS were concluded to be unrelated to the project. Details of the instigation could be referred to Monthly EM&A Report Appendix O
Table 3.4 Summary of Regular Impact
Water Quality Monitoring Results (Mid-Flood)
|
Location |
Parameter |
|||||||||||||||||||||
|
Salinity (ppt) |
Dissolved Oxygen
(mg/L) |
pH |
Turbidity (NTU) |
Suspended Solids (mg/L) |
Temp. (oC) |
|||||||||||||||||
|
Surface &
Middle |
Bottom |
|||||||||||||||||||||
|
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
||
|
CE |
Avg. |
32.8 |
32.7 |
32.7 |
8.7 |
8.9 |
8.9 |
8.7 |
8.9 |
8.9 |
8.2 |
8.2 |
8.3 |
2.5 |
2.6 |
2.5 |
3.5 |
2.9 |
2.7 |
21.2 |
22.9 |
25.7 |
|
Min. |
30.7 |
31.4 |
30.9 |
8.2 |
8.2 |
8.4 |
8.2 |
8.2 |
8.4 |
8.1 |
8.1 |
8.2 |
1.9 |
2.2 |
2.2 |
2.5 |
2.5 |
2.5 |
19.7 |
20.8 |
21.5 |
|
|
Max |
34.2 |
33.8 |
33.5 |
9.5 |
9.5 |
9.7 |
9.4 |
9.6 |
9.7 |
8.4 |
8.4 |
8.4 |
3.0 |
3.0 |
2.9 |
22.0 |
5.0 |
5.0 |
22.6 |
25.1 |
27.5 |
|
|
CF |
Avg. |
32.6 |
32.5 |
32.8 |
8.7 |
8.8 |
8.9 |
8.7 |
8.8 |
8.9 |
8.3 |
8.2 |
8.3 |
2.9 |
3.0 |
2.9 |
4.4 |
2.9 |
2.9 |
21.2 |
23.1 |
26.0 |
|
Min. |
30.6 |
31.5 |
31.7 |
8.2 |
8.2 |
8.4 |
8.2 |
8.2 |
8.5 |
8.1 |
8.1 |
8.2 |
2.3 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
20.0 |
20.6 |
25.1 |
|
|
Max |
34.3 |
33.2 |
33.8 |
9.6 |
9.5 |
9.6 |
9.6 |
9.5 |
9.6 |
8.5 |
8.4 |
8.4 |
3.4 |
3.6 |
3.3 |
22.0 |
9.0 |
7.0 |
22.4 |
25.0 |
27.2 |
|
|
WSR1 |
Avg. |
32.6 |
32.5 |
32.6 |
8.8 |
9.0 |
8.7 |
8.8 |
9.0 |
8.7 |
8.2 |
8.2 |
8.3 |
2.0 |
2.1 |
2.0 |
4.4 |
3.1 |
2.6 |
21.2 |
23.0 |
25.9 |
|
Min. |
31.2 |
31.8 |
31.4 |
8.1 |
8.3 |
8.3 |
8.1 |
8.3 |
8.2 |
8.2 |
8.1 |
8.2 |
1.7 |
1.6 |
1.6 |
2.5 |
2.5 |
2.5 |
19.8 |
21.3 |
24.9 |
|
|
Max |
33.8 |
33.8 |
33.7 |
9.5 |
9.8 |
9.2 |
9.5 |
9.7 |
9.2 |
8.4 |
8.4 |
8.4 |
2.4 |
2.4 |
2.4 |
22.0 |
6.0 |
5.0 |
22.6 |
25.4 |
27.0 |
|
|
WSR2 |
Avg. |
32.5 |
32.7 |
32.6 |
9.1 |
8.9 |
8.9 |
9.1 |
8.9 |
8.9 |
8.2 |
8.2 |
8.3 |
2.0 |
2.1 |
2.1 |
3.7 |
2.8 |
2.7 |
21.1 |
23.0 |
25.9 |
|
Min. |
31.3 |
31.5 |
31.8 |
8.3 |
8.4 |
8.2 |
8.3 |
8.3 |
8.2 |
8.1 |
8.2 |
8.1 |
1.7 |
1.6 |
1.7 |
2.5 |
2.5 |
2.5 |
20.1 |
21.0 |
24.7 |
|
|
Max |
33.7 |
33.9 |
33.3 |
9.7 |
9.6 |
9.5 |
9.8 |
9.5 |
9.5 |
8.4 |
8.4 |
8.4 |
2.3 |
2.5 |
2.5 |
11.0 |
6.0 |
4.0 |
22.5 |
25.4 |
27.2 |
|
|
WSR3 |
Avg. |
32.6 |
32.7 |
32.8 |
8.8 |
8.8 |
9.1 |
8.8 |
8.8 |
9.1 |
8.2 |
8.3 |
8.3 |
2.1 |
2.1 |
2.1 |
3.5 |
2.7 |
2.8 |
21.2 |
23.1 |
26.0 |
|
Min. |
30.7 |
31.5 |
31.8 |
8.3 |
8.2 |
8.7 |
8.3 |
8.2 |
8.6 |
8.1 |
8.1 |
8.1 |
1.7 |
1.7 |
1.7 |
2.5 |
2.5 |
2.5 |
20.1 |
20.5 |
24.6 |
|
|
Max |
34.1 |
33.6 |
33.7 |
9.5 |
9.3 |
9.4 |
9.5 |
9.3 |
9.5 |
8.4 |
8.4 |
8.4 |
2.4 |
2.4 |
2.5 |
14.0 |
6.0 |
6.0 |
22.5 |
25.5 |
27.8 |
|
|
WSR4 |
Avg. |
32.7 |
32.6 |
32.6 |
8.9 |
8.9 |
8.8 |
8.9 |
8.9 |
8.8 |
8.3 |
8.2 |
8.3 |
2.0 |
2.1 |
2.1 |
3.7 |
2.7 |
2.9 |
21.1 |
23.0 |
26.0 |
|
Min. |
31.2 |
31.2 |
31.9 |
8.2 |
8.3 |
8.3 |
8.3 |
8.3 |
8.4 |
8.1 |
8.1 |
8.1 |
1.6 |
1.7 |
1.6 |
2.5 |
2.5 |
2.5 |
20.0 |
21.0 |
24.7 |
|
|
Max |
33.9 |
33.7 |
33.7 |
9.4 |
9.8 |
9.3 |
9.3 |
9.7 |
9.3 |
8.4 |
8.4 |
8.4 |
2.5 |
2.3 |
2.4 |
10.0 |
5.0 |
6.0 |
22.4 |
25.0 |
27.3 |
|
|
WSR16 |
Avg. |
32.7 |
32.5 |
32.7 |
8.9 |
8.8 |
8.9 |
8.9 |
8.7 |
8.9 |
8.3 |
8.3 |
8.2 |
2.1 |
2.1 |
2.1 |
4.3 |
3.3 |
2.7 |
21.0 |
23.0 |
25.9 |
|
Min. |
30.9 |
31.6 |
30.9 |
8.1 |
8.2 |
8.2 |
8.1 |
8.2 |
8.3 |
8.1 |
8.1 |
8.1 |
1.8 |
1.7 |
1.8 |
2.5 |
2.5 |
2.5 |
20.0 |
21.2 |
24.6 |
|
|
Max |
34.2 |
33.6 |
33.7 |
9.5 |
9.5 |
9.4 |
9.5 |
9.4 |
9.5 |
8.4 |
8.4 |
8.4 |
2.4 |
2.5 |
2.6 |
22.0 |
19.0 |
4.0 |
22.0 |
24.7 |
27.4 |
|
|
WSR33 |
Avg. |
32.7 |
32.7 |
32.8 |
8.8 |
8.7 |
8.7 |
8.8 |
8.7 |
8.7 |
8.3 |
8.2 |
8.3 |
2.0 |
2.0 |
2.0 |
3.5 |
3.7 |
2.9 |
21.2 |
23.0 |
26.1 |
|
Min. |
31.3 |
31.3 |
31.1 |
8.0 |
8.2 |
8.2 |
8.0 |
8.2 |
8.2 |
8.2 |
8.1 |
8.1 |
1.7 |
1.6 |
1.7 |
2.5 |
2.5 |
2.5 |
20.1 |
20.9 |
24.8 |
|
|
Max |
34.1 |
34.0 |
33.7 |
9.4 |
9.4 |
9.6 |
9.5 |
9.4 |
9.6 |
8.5 |
8.4 |
8.4 |
2.4 |
2.5 |
2.5 |
10.0 |
29.0 |
6.0 |
22.7 |
25.2 |
27.4 |
|
|
WSR36 |
Avg. |
32.6 |
32.5 |
32.6 |
9.1 |
8.8 |
8.9 |
9.1 |
8.8 |
8.9 |
8.2 |
8.2 |
8.2 |
2.0 |
2.1 |
2.1 |
3.0 |
2.9 |
2.7 |
21.1 |
23.0 |
26.1 |
|
Min. |
30.3 |
31.3 |
31.4 |
8.5 |
8.2 |
8.3 |
8.5 |
8.3 |
8.3 |
8.1 |
8.1 |
8.1 |
1.7 |
1.7 |
1.7 |
2.5 |
2.5 |
2.5 |
20.0 |
21.0 |
24.7 |
|
|
Max |
34.2 |
33.3 |
33.7 |
9.7 |
9.5 |
9.4 |
9.8 |
9.4 |
9.4 |
8.4 |
8.4 |
8.4 |
2.4 |
2.5 |
2.4 |
8.0 |
9.0 |
7.0 |
22.2 |
25.2 |
27.4 |
|
|
WSR37 |
Avg. |
32.7 |
32.7 |
32.9 |
8.9 |
8.7 |
9.1 |
8.9 |
8.7 |
9.1 |
8.3 |
8.3 |
8.3 |
2.0 |
2.1 |
2.1 |
4.1 |
3.0 |
3.7 |
21.3 |
23.0 |
26.0 |
|
Min. |
30.9 |
31.3 |
31.5 |
8.1 |
8.2 |
8.3 |
8.1 |
8.2 |
8.3 |
8.2 |
8.1 |
8.1 |
1.5 |
1.8 |
1.5 |
2.5 |
2.5 |
2.5 |
19.8 |
21.1 |
25.0 |
|
|
Max |
34.1 |
33.7 |
33.8 |
9.6 |
9.3 |
9.8 |
9.5 |
9.2 |
9.8 |
8.4 |
8.4 |
8.4 |
2.4 |
2.5 |
2.6 |
26.0 |
14.0 |
28.0 |
22.4 |
25.1 |
27.5 |
|
Table 3.5 Summary of Regular Impact
Water Quality Monitoring Results (Mid-Ebb)
|
Location |
Parameter |
|||||||||||||||||||||
|
Salinity (ppt) |
Dissolved Oxygen
(mg/L) |
pH |
Turbidity (NTU) |
Suspended Solids (mg/L) |
Temp. (oC) |
|||||||||||||||||
|
Surface &
Middle |
Bottom |
|||||||||||||||||||||
|
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
Mar |
Apr |
May |
||
|
CE |
Avg. |
32.7 |
32.5 |
32.7 |
8.9 |
8.8 |
8.8 |
8.9 |
8.8 |
8.7 |
8.2 |
8.2 |
8.3 |
2.8 |
2.9 |
2.9 |
3.0 |
2.9 |
2.7 |
21.2 |
22.9 |
25.9 |
|
Min. |
31.2 |
31.3 |
30.5 |
8.3 |
8.4 |
8.2 |
8.4 |
8.4 |
8.3 |
8.1 |
8.2 |
8.2 |
2.4 |
2.6 |
2.6 |
2.5 |
2.5 |
2.5 |
20.2 |
20.7 |
24.9 |
|
|
Max |
34.3 |
33.5 |
33.4 |
9.5 |
9.7 |
9.4 |
9.5 |
9.6 |
9.3 |
8.4 |
8.4 |
8.4 |
3.3 |
3.7 |
3.2 |
8.0 |
8.0 |
4.0 |
22.2 |
24.8 |
27.4 |
|
|
CF |
Avg. |
32.6 |
32.7 |
32.5 |
9.0 |
8.7 |
9.1 |
9.0 |
8.7 |
9.0 |
8.3 |
8.3 |
8.2 |
2.4 |
2.5 |
2.5 |
3.1 |
2.9 |
3.4 |
21.1 |
22.9 |
26.0 |
|
Min. |
30.9 |
31.6 |
31.0 |
8.2 |
8.2 |
8.3 |
8.2 |
8.3 |
8.3 |
8.1 |
8.1 |
8.1 |
2.0 |
2.2 |
2.1 |
2.5 |
2.5 |
2.5 |
20.0 |
20.6 |
24.9 |
|
|
Max |
34.2 |
33.5 |
33.7 |
9.5 |
9.4 |
9.8 |
9.4 |
9.4 |
9.6 |
8.4 |
8.4 |
8.4 |
2.9 |
3.0 |
3.0 |
9.0 |
7.0 |
26.0 |
22.0 |
24.8 |
27.5 |
|
|
WSR1 |
Avg. |
32.7 |
32.5 |
32.9 |
8.9 |
8.8 |
8.9 |
8.9 |
8.8 |
8.9 |
8.2 |
8.3 |
8.3 |
2.1 |
2.1 |
2.1 |
3.5 |
3.4 |
3.7 |
21.1 |
23.0 |
25.8 |
|
Min. |
30.8 |
31.6 |
31.6 |
8.3 |
8.3 |
8.3 |
8.3 |
8.3 |
8.3 |
8.0 |
8.2 |
8.2 |
1.7 |
1.6 |
1.7 |
2.5 |
2.5 |
2.5 |
19.8 |
20.9 |
25.0 |
|
|
Max |
33.8 |
33.6 |
33.7 |
9.5 |
9.8 |
9.6 |
9.6 |
9.9 |
9.5 |
8.4 |
8.4 |
8.5 |
2.5 |
2.5 |
2.5 |
9.0 |
8.0 |
27.0 |
22.3 |
25.3 |
27.1 |
|
|
WSR2 |
Avg. |
32.6 |
32.4 |
32.6 |
8.9 |
8.8 |
8.8 |
8.8 |
8.8 |
8.8 |
8.2 |
8.3 |
8.3 |
2.1 |
2.1 |
2.1 |
3.6 |
3.2 |
3.7 |
21.1 |
23.0 |
25.8 |
|
Min. |
30.3 |
31.3 |
31.4 |
8.3 |
8.3 |
8.2 |
8.3 |
8.3 |
8.2 |
8.1 |
8.1 |
8.1 |
1.7 |
1.6 |
1.8 |
2.5 |
2.5 |
2.5 |
20.0 |
20.9 |
24.5 |
|
|
Max |
33.8 |
33.5 |
33.4 |
9.4 |
9.6 |
9.3 |
9.4 |
9.6 |
9.3 |
8.3 |
8.4 |
8.5 |
2.4 |
2.4 |
2.4 |
15.0 |
7.0 |
29.0 |
22.2 |
24.9 |
27.2 |
|
|
WSR3 |
Avg. |
32.6 |
32.8 |
32.4 |
8.7 |
8.9 |
8.8 |
8.7 |
8.9 |
8.8 |
8.3 |
8.2 |
8.2 |
2.1 |
2.1 |
2.1 |
3.1 |
3.1 |
4.5 |
21.3 |
23.0 |
26.0 |
|
Min. |
31.0 |
31.5 |
31.0 |
8.3 |
8.4 |
8.3 |
8.4 |
8.4 |
8.3 |
8.1 |
8.1 |
8.1 |
1.8 |
1.7 |
1.6 |
2.5 |
2.5 |
2.5 |
19.9 |
21.2 |
24.8 |
|
|
Max |
34.0 |
33.7 |
33.0 |
9.3 |
9.4 |
9.5 |
9.3 |
9.4 |
9.5 |
8.4 |
8.4 |
8.5 |
2.5 |
2.5 |
2.4 |
9.0 |
7.0 |
60.0 |
22.5 |
25.2 |
27.5 |
|
|
WSR4 |
Avg. |
32.7 |
32.8 |
32.4 |
9.0 |
8.9 |
8.9 |
9.0 |
8.9 |
8.9 |
8.2 |
8.2 |
8.3 |
2.0 |
2.1 |
2.1 |
3.2 |
3.2 |
3.7 |
21.1 |
23.0 |
26.0 |
|
Min. |
30.1 |
31.9 |
30.9 |
8.4 |
8.2 |
8.3 |
8.3 |
8.2 |
8.4 |
8.0 |
8.1 |
8.1 |
1.6 |
1.6 |
1.6 |
2.5 |
2.5 |
2.5 |
19.9 |
20.9 |
24.9 |
|
|
Max |
34.5 |
33.9 |
33.3 |
9.5 |
9.5 |
9.3 |
9.5 |
9.5 |
9.4 |
8.4 |
8.4 |
8.4 |
2.5 |
2.5 |
2.4 |
7.0 |
9.0 |
24.0 |
22.2 |
25.3 |
27.1 |
|
|
WSR16 |
Avg. |
32.7 |
32.6 |
32.4 |
8.9 |
8.7 |
8.9 |
8.8 |
8.7 |
8.9 |
8.2 |
8.2 |
8.2 |
2.1 |
2.1 |
2.1 |
3.8 |
3.0 |
4.7 |
21.0 |
23.1 |
25.8 |
|
Min. |
31.0 |
31.2 |
30.8 |
8.5 |
8.3 |
8.4 |
8.4 |
8.3 |
8.3 |
8.0 |
8.1 |
8.1 |
1.6 |
1.7 |
1.7 |
2.5 |
2.5 |
2.5 |
19.9 |
21.1 |
24.6 |
|
|
Max |
34.2 |
33.6 |
33.4 |
9.4 |
9.8 |
9.4 |
9.4 |
9.8 |
9.4 |
8.4 |
8.4 |
8.4 |
2.4 |
2.5 |
2.4 |
20.0 |
8.0 |
45.0 |
21.9 |
25.4 |
27.5 |
|
|
WSR33 |
Avg. |
32.6 |
32.5 |
32.4 |
8.8 |
9.0 |
8.9 |
8.8 |
9.0 |
8.9 |
8.3 |
8.2 |
8.3 |
2.1 |
2.1 |
2.1 |
3.6 |
3.2 |
3.9 |
21.1 |
23.0 |
26.1 |
|
Min. |
30.4 |
31.3 |
30.7 |
8.3 |
8.4 |
8.4 |
8.3 |
8.5 |
8.4 |
8.1 |
8.1 |
8.1 |
1.7 |
1.6 |
1.6 |
2.5 |
2.5 |
2.5 |
20.0 |
20.6 |
24.7 |
|
|
Max |
34.0 |
33.5 |
33.5 |
9.2 |
9.8 |
9.4 |
9.2 |
9.7 |
9.3 |
8.4 |
8.4 |
8.4 |
2.5 |
2.4 |
2.4 |
9.0 |
8.0 |
26.0 |
22.5 |
24.8 |
27.5 |
|
|
WSR36 |
Avg. |
32.5 |
32.3 |
32.6 |
8.7 |
8.8 |
8.9 |
8.7 |
8.8 |
8.9 |
8.3 |
8.2 |
8.3 |
2.1 |
2.1 |
2.1 |
3.9 |
3.4 |
3.4 |
21.1 |
23.0 |
25.9 |
|
Min. |
30.1 |
31.1 |
31.4 |
8.3 |
8.2 |
8.3 |
8.3 |
8.2 |
8.4 |
8.0 |
8.1 |
8.2 |
1.7 |
1.8 |
1.7 |
2.5 |
2.5 |
2.5 |
20.0 |
20.7 |
24.9 |
|
|
Max |
33.7 |
33.3 |
33.7 |
9.4 |
9.6 |
9.5 |
9.4 |
9.5 |
9.5 |
8.4 |
8.4 |
8.4 |
2.5 |
2.4 |
2.5 |
12.0 |
9.0 |
8.0 |
22.4 |
25.1 |
27.3 |
|
|
WSR37 |
Avg. |
32.5 |
32.5 |
32.5 |
8.8 |
8.8 |
8.8 |
8.8 |
8.8 |
8.8 |
8.3 |
8.3 |
8.3 |
2.1 |
2.1 |
2.1 |
3.7 |
3.2 |
3.5 |
21.1 |
23.0 |
26.0 |
|
Min. |
30.8 |
31.4 |
31.6 |
8.3 |
8.2 |
8.3 |
8.3 |
8.3 |
8.3 |
8.0 |
8.2 |
8.2 |
1.7 |
1.6 |
1.6 |
2.5 |
2.5 |
2.5 |
19.9 |
21.1 |
24.6 |
|
|
Max |
34.2 |
33.4 |
33.3 |
9.7 |
9.4 |
9.4 |
9.7 |
9.4 |
9.4 |
8.4 |
8.4 |
8.4 |
2.6 |
2.4 |
2.4 |
12.0 |
8.0 |
9.0 |
22.5 |
25.1 |
27.6 |
|
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 G.
|
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) |
|
|
March 2023 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
205.410 |
|
April 2023 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
255.720 |
|
May 2023 |
2088.990 |
0.000 |
0.000 |
0.000 |
2088.990 |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
202.270 |
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, 146 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780). 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 Location 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
The Environmental Complaint Handling Procedure
is shown in below Figure 6.1:
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.
The EM&A works for water quality were conducted during the reporting period in accordance with the EM&A Manual.
During the reporting period, one hundred and twenty-nine (129) of the general water quality monitoring results of SS obtained had exceeded the Action Level. One hundred and six (106) of the general water quality monitoring results of SS obtained during the reporting quarter had exceeded the Limit Level.
After investigation, all exceedances were considered non-project related.
In this reporting period, 146 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780). 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.
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, notification of summons and prosecution was received in the reporting period.
Statistics on complaints and regulatory compliance are summarized in Appendix H.
Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract.
Joint site inspections were also carried out by ET and IEC on 7, 14, 22 and 31 March 2023, 4, 11, 18 and 24 April 2023, and 2, 9, 16, 23 and 30 May 2023.
Minor deficiencies were observed during weekly site inspection. Key observations during the site inspections are summarized below:
- Chemical tanks found near the RO Building shall be properly stored or on a drip tray to prevent leakage. The broken chemical label shall be also replaced asap.
- Chemical containers found near the Chemical Building shall be properly stored or placed on a drip tray to prevent leakage.
- The chemical containers found near mechanic workshop, combined Shaft area shall be properly stored or stored on a drip tray.
- Oil drums found near the shall be provided a proper storage or drip tray to prevent oil leakage.
- Chemical containers found near the South end of the site near the slope shall be provided with a proper storage or drip tray to prevent leakage.
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 13th Quarterly EM&A Report for the Project which summarizes the key findings of the EM&A programme during the reporting period from 1 March 2023 to 31 May 2023, in accordance with the EM&A Manual and the requirement under FEP-01/503/2015/A.
No noise monitoring was conducted in the reporting period due to the over distant monitoring station from the works location.
During the reporting period, one hundred and twenty-nine (129) of the general water quality monitoring results of SS obtained had exceeded the Action Level. One hundred and six (106) of the general water quality monitoring results of SS obtained during the reporting quarter had exceeded the Limit Level.
After investigation, all exceedances were considered non-project related.
In this reporting period, 146 times of landfill gas monitoring were recorded at Wan Po Road (Ch0+390 - Ch0+780). 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.
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.
No environmental complaint, notification of summons or prosecution was received since commencement of the Contract.
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
Table E1 Summary of Exceedance in March 2023
|
Date |
Station |
Tide |
SS Level (mg/L) |
Action Level |
Limit Level |
|
02/03/2023 |
WSR1 |
Flood |
19.17 |
Y |
Y |
|
WSR16 |
Flood |
15.67 |
Y |
Y |
|
|
WSR33 |
Flood |
6.17 |
Y |
Y |
|
|
WSR37 |
Flood |
6.67 |
Y |
Y |
|
|
WSR3 |
Ebb |
4.00 |
Y |
Y |
|
|
WSR16 |
Ebb |
8.67 |
Y |
Y |
|
|
05/03/2023 |
WSR1 |
Flood |
3.92 |
Y |
Y |
|
WSR37 |
Flood |
3.83 |
Y |
Y |
|
|
WSR36 |
Ebb |
5.17 |
Y |
Y |
|
|
WSR37 |
Ebb |
4.25 |
Y |
Y |
|
|
07/03/2023 |
WSR1 |
Flood |
4.00 |
Y |
N |
|
WSR2 |
Flood |
5.75 |
Y |
Y |
|
|
WSR37 |
Flood |
4.00 |
Y |
N |
|
|
WSR2 |
Ebb |
4.50 |
Y |
Y |
|
|
WSR3 |
Ebb |
3.42 |
Y |
N |
|
|
WSR33 |
Ebb |
3.58 |
Y |
Y |
|
|
WSR36 |
Ebb |
3.50 |
Y |
Y |
|
|
WSR37 |
Ebb |
3.67 |
Y |
Y |
|
|
09/03/2023 |
WSR1 |
Flood |
3.25 |
Y |
N |
|
WSR2 |
Flood |
4.50 |
Y |
Y |
|
|
WSR3 |
Flood |
3.67 |
Y |
Y |
|
|
WSR16 |
Flood |
3.25 |
Y |
N |
|
|
WSR2 |
Ebb |
3.75 |
Y |
Y |
|
|
WSR4 |
Ebb |
4.50 |
Y |
Y |
|
|
WSR16 |
Ebb |
6.17 |
Y |
Y |
|
|
WSR37 |
Ebb |
4.25 |
Y |
Y |
|
|
11/03/2023 |
WSR2 |
Flood |
3.33 |
Y |
N |
|
WSR3 |
Flood |
6.42 |
Y |
Y |
|
|
WSR1 |
Ebb |
5.00 |
Y |
Y |
|
|
WSR2 |
Ebb |
6.33 |
Y |
Y |
|
|
14/03/2023 |
WSR4 |
Flood |
4.83 |
Y |
Y |
|
WSR37 |
Flood |
10.00 |
Y |
Y |
|
|
WSR1 |
Ebb |
5.25 |
Y |
Y |
|
|
16/03/2023 |
WSR2 |
Flood |
8.50 |
Y |
Y |
|
WSR4 |
Flood |
6.17 |
Y |
Y |
|
|
WSR16 |
Flood |
5.83 |
Y |
N |
|
|
WSR33 |
Flood |
6.50 |
Y |
Y |
|
|
18/03/2023 |
WSR3 |
Flood |
3.83 |
Y |
Y |
|
WSR4 |
Flood |
7.00 |
Y |
Y |
|
|
WSR16 |
Flood |
5.67 |
Y |
Y |
|
|
WSR33 |
Flood |
3.67 |
Y |
Y |
|
|
WSR36 |
Flood |
3.67 |
Y |
Y |
|
|
WSR37 |
Flood |
4.92 |
Y |
Y |
|
|
WSR4 |
Ebb |
3.83 |
Y |
N |
|
|
WSR33 |
Ebb |
6.00 |
Y |
Y |
|
Date |
Station |
Tide |
SS Level (mg/L) |
Action Level |
Limit Level |
|
|
WSR36 |
Ebb |
9.33 |
Y |
Y |
|
WSR37 |
Ebb |
7.83 |
Y |
Y |
|
|
21/03/2023 |
WSR33 |
Flood |
4.08 |
Y |
N |
|
WSR1 |
Ebb |
5.75 |
Y |
Y |
|
|
WSR33 |
Ebb |
5.50 |
Y |
Y |
|
|
23/03/2023 |
WSR2 |
Ebb |
4.25 |
Y |
Y |
|
WSR16 |
Ebb |
4.00 |
Y |
N |
|
|
28/03/2023 |
WSR1 |
Ebb |
4.17 |
Y |
Y |
|
WSR2 |
Ebb |
5.50 |
Y |
Y |
|
|
WSR3 |
Ebb |
4.58 |
Y |
Y |
|
|
WSR4 |
Ebb |
4.42 |
Y |
Y |
|
|
WSR16 |
Ebb |
5.17 |
Y |
Y |
|
|
WSR33 |
Ebb |
6.67 |
Y |
Y |
|
|
WSR36 |
Ebb |
5.17 |
Y |
Y |
|
|
WSR37 |
Ebb |
3.83 |
Y |
Y |
Table E2 Summary of Exceedance in April 2023
|
Date |
Station |
Tide |
SS Level
(mg/L) |
Action Level |
Limit Level |
|
01/04/2023 |
WSR16 |
Flood |
7.92 |
Y |
Y |
|
WSR33 |
Flood |
12.50 |
Y |
Y |
|
|
WSR36 |
Flood |
5.08 |
Y |
Y |
|
|
WSR37 |
Flood |
7.00 |
Y |
Y |
|
|
WSR2 |
Ebb |
3.42 |
Y |
Y |
|
|
WSR3 |
Ebb |
3.83 |
Y |
Y |
|
|
WSR4 |
Ebb |
4.67 |
Y |
Y |
|
|
WSR16 |
Ebb |
3.17 |
Y |
N |
|
|
04/04/2023 |
WSR33 |
Flood |
3.58 |
Y |
N |
|
WSR37 |
Flood |
3.50 |
Y |
N |
|
|
06/04/2023 |
WSR1 |
Flood |
4.25 |
Y |
Y |
|
WSR1 |
Ebb |
3.42 |
Y |
N |
|
|
WSR2 |
Ebb |
4.08 |
Y |
Y |
|
|
WSR36 |
Ebb |
5.33 |
Y |
Y |
|
|
08/04/2023 |
WSR1 |
Ebb |
4.17 |
Y |
Y |
|
WSR2 |
Ebb |
3.25 |
Y |
N |
|
|
11/04/2023 |
WSR16 |
Ebb |
4.17 |
Y |
N |
|
WSR33 |
Ebb |
4.75 |
Y |
Y |
|
|
WSR37 |
Ebb |
4.75 |
Y |
Y |
|
|
13/04/2023 |
WSR33 |
Flood |
3.58 |
Y |
N |
|
WSR1 |
Ebb |
5.83 |
Y |
Y |
|
|
15/04/2023 |
WSR36 |
Flood |
3.08 |
Y |
N |
|
18/04/2023 |
WSR33 |
Ebb |
4.83 |
Y |
N |
|
WSR37 |
Ebb |
5.17 |
Y |
Y |
|
|
20/04/2023 |
WSR1 |
Ebb |
4.50 |
Y |
Y |
|
WSR2 |
Ebb |
3.92 |
Y |
Y |
|
|
WSR3 |
Ebb |
4.50 |
Y |
Y |
|
|
WSR4 |
Ebb |
3.42 |
Y |
Y |
|
Date |
Station |
Tide |
SS Level
(mg/L) |
Action Level |
Limit Level |
|
|
WSR16 |
Ebb |
4.83 |
Y |
Y |
|
WSR33 |
Ebb |
4.67 |
Y |
Y |
|
|
WSR36 |
Ebb |
4.33 |
Y |
Y |
|
|
WSR37 |
Ebb |
4.50 |
Y |
Y |
Table E3 Summary of Exceedance in May 2023
|
Date |
Station |
Tide |
SS Level (mg/L) |
Action Level |
Limit Level |
|
02/05/2023 |
WSR33 |
Flood |
3.75 |
Y |
Y |
|
WSR1 |
Ebb |
14.92 |
Y |
Y |
|
|
WSR2 |
Ebb |
11.17 |
Y |
Y |
|
|
11/05/2023 |
WSR3 |
Ebb |
3.08 |
Y |
N |
|
16/05/2023 |
WSR2 |
Flood |
3.33 |
Y |
N |
|
WSR3 |
Flood |
3.67 |
Y |
Y |
|
|
WSR4 |
Flood |
4.50 |
Y |
Y |
|
|
WSR16 |
Flood |
3.83 |
Y |
Y |
|
|
WSR33 |
Flood |
5.17 |
Y |
Y |
|
|
WSR36 |
Flood |
4.75 |
Y |
Y |
|
|
WSR37 |
Flood |
6.17 |
Y |
Y |
|
|
WSR1 |
Ebb |
3.83 |
Y |
Y |
|
|
WSR2 |
Ebb |
4.33 |
Y |
Y |
|
|
WSR3 |
Ebb |
5.83 |
Y |
Y |
|
|
WSR4 |
Ebb |
4.83 |
Y |
Y |
|
|
WSR16 |
Ebb |
18.00 |
Y |
Y |
|
|
WSR33 |
Ebb |
6.17 |
Y |
Y |
|
|
WSR36 |
Ebb |
6.83 |
Y |
Y |
|
|
WSR37 |
Ebb |
7.00 |
Y |
Y |
|
|
18/05/2023 |
WSR3 |
Flood |
3.67 |
Y |
N |
|
WSR4 |
Flood |
3.83 |
Y |
Y |
|
|
WSR37 |
Flood |
11.08 |
Y |
Y |
|
|
WSR4 |
Ebb |
9.42 |
Y |
Y |
|
|
WSR33 |
Ebb |
10.33 |
Y |
Y |
|
|
23/05/2023 |
WSR2 |
Ebb |
3.58 |
Y |
N |
|
WSR4 |
Ebb |
5.00 |
Y |
Y |
|
|
WSR16 |
Ebb |
5.50 |
Y |
Y |
|
|
WSR33 |
Ebb |
6.33 |
Y |
Y |
|
|
WSR36 |
Ebb |
6.67 |
Y |
Y |
|
|
WSR37 |
Ebb |
7.17 |
Y |
Y |
|
|
27/05/2023 |
WSR2 |
Ebb |
5.17 |
Y |
Y |
|
WSR3 |
Ebb |
21.58 |
Y |
Y |
|
|
WSR4 |
Ebb |
4.33 |
Y |
Y |
|
|
WSR16 |
Ebb |
11.00 |
Y |
Y |
|
|
WSR33 |
Ebb |
4.67 |
Y |
Y |
|
|
WSR36 |
Ebb |
4.67 |
Y |
Y |
|
|
WSR37 |
Ebb |
5.00 |
Y |
Y |
Table G1 Statistical Summary of Environmental Complaints
|
Reporting Period |
Environmental Complaint Statistics |
||
|
Frequency |
Cumulative |
Complaint Nature |
|
|
1 March 2023 - 31 May 2023 |
0 |
1 |
N/A |
Table G2 Statistical Summary of Environmental Summons
|
Reporting Period |
Environmental Summons Statistics |
||
|
Frequency |
Cumulative |
Details |
|
|
1 March 2023 - 31 May 2023 |
0 |
0 |
N/A |
Table G3 Statistical Summary of Environmental Prosecution
|
Reporting Period |
Environmental Prosecution Statistics |
||
|
Frequency |
Cumulative |
Details |
|
|
1 March 2023 - 31 May 2023 |
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
