Contract No. 13/WSD/16
Mainlaying in Tseung Kwan O
Monthly EM&A Report No. 25
(Period from 1 to 31 August 2020)
September 2020
(Rev. 0)
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Prepared by: |
Certified by: |
Name |
Karen Cheung |
Jacky Leung |
Position |
Environmental Team |
Environmental Team Leader |
Signature |
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Date: |
18/09/2020 |
18/09/2020 |
Revision History
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0 |
1st Submission |
18 SEP 2020 |
Rev. |
Description of Modification |
Date |
Content
Executive Summary
5. Summary of Monitoring Exceedance, Complaints, Notification of Summons and Prosecutions
8. Conclusion and Recommendations
Overview of Mainlaying in Tseung Kwan O |
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Summary of Implementation Status of Environmental Mitigation |
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Noise Monitoring Data (Blank) |
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Appendix H |
Waste Flow Table |
Appendix I |
Landfill Gas Monitoring Equipment Calibration Certificate |
Appendix J |
Landfill Gas Monitoring Data |
Appendix K |
Complaint Log and Regulatory Compliance Proforma |
Appendix L |
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Appendix M |
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Appendix N |
Executive Summary
Introduction
A1. Penta-Ocean - Concentric Joint Venture (POCJV) is contracted to carry out the Mainlaying in Tseung Kwan O under Contract No. 13/WSD/16 (hereinafter known as “the Project”).
A2. In accordance with the Environmental Monitoring and Audit (EM&A) Manual for the Project, EM&A works should be carried out by Environmental Team (ET), Acuity Sustainability Consulting Limited (ASCL), during the construction phase of the Project.
A3. This is the 25th Monthly EM&A Report, prepared by ASCL, for the Project summarizing the monitoring results and audit findings of the EM&A programme at and around Tseung Kwan O (TKO) during the reporting period from 1 August 2020 to 31 August 2020.
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 works carried out in this reporting period for the Project included the followings:
Location |
Works Conducted in the reporting month |
Portion H of the Project Site |
· Pipes had been laid from CH.CT0+07~CH.CT2+64. · Concreting work of the top slab and wall of DN900 HSV chamber at CH.CA4+30 was completed in August 2020. · Construction of washout chamber and DAV/IT combined chamber were completed. |
Portion J of the Project Site |
· Laying work of 30 degrees bend DN1200 MS pipe at CH.A6+53 was completed. · Backfilling and road reinstatement work of the bus lay-by and carriageway were completed at CHA12+45. · Sheetpiling work in pit A was completed. · Excavation to 9mBG and installation of 6th layer of waling and strut were completed at Pit C. · Pipes were laid between CH.FB1+98 to CH.FB3+27 and was in progress between CH.FB3+27 to CH.FB3+60 at Area A. · Trench excavation and Pipe mainlaying works were completed at CH.FC2+16 1st work front at the cycle track. · Pipe mainlaying and reinstatement works were completed at CH.FC5+49 2nd work front at the cycle track. · Pipes were laid between CH.FC13+26 and Ch.FC12+05 in Area B. Backfilling work and reinstatement of existing geotextile of these trenches were in-progress. · Excavation work for 1st layer of struts and waling was in-progress at Pit O. · Excavation work for 2nd layer of struts and waling was in-progress at Pit M. · Excavation work for 1st layer of struts and waling was in-progress at Pit N. · The driving work of sheet piles at Pit P was in-progress. |
A6. The major environmental impacts brought by the above construction works include:
· Construction dust and noise generation saw cutting of concrete surface, mainlaying of pipes, sheet pilling, excavation works and installation works.
· Waste generation from the construction activities
A7. The key environmental mitigation measures implemented for the Project in this reporting period associated with the above construction works include:
· Dust suppression by regular wetting and water spraying for trial pits works and mainlaying of pipes and saw cutting of the concrete surfaces
· Reduction of noise from equipment and machinery on-site
· Sorting and storage of general refuse and construction waste
Summary of Exceedance & Investigation & Follow-up
A8. No noise monitoring was conducted in the reporting month due to the overly distant monitoring station from the works location. No project-related exceedance of the Action Level was recorded during the reporting period.
Complaint Handling and Prosecution
A9. No project-related environmental complaint was received during the reporting period.
A10. Neither notifications of summons nor prosecution was received for the Project.
Reporting Change
A11. There were no changes reported that may affect the on-going EM&A programme.
Summary of Upcoming Key Issues and Key Mitigation Measures
A12. Key works in September 2020 (the next reporting month) for the Project will include the followings:
Location |
Works Conducting in the next reporting month |
· Construction of DN900 HSV chamber near SENTX (SENT Landfill Extension) Entrance including installation of DN150 by-pass pipe and casting of thrust block concrete will be continued in September 2020. · Preparation work for the construction of 137PitA, 137PitB and 137pitC near SENTX Entrance Gate will be continued. · Casting of tee thrust block concrete at washout chamber will be continued in September 2020. · Preparation work for the water pressure test of DN1200 MS pipe in Area 137 will be continued. · Pipe Mainlaying works will be continued at the proposed location of the desalination plant. |
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· Continue 3 nos. of work fronts implemented as scheduled for the open-trench at CH.A2+14, CH. A6+53 to 12+14. · Pipe jacking at working Pit A, Pit B and Pit C will be continued at CH.A 13+70, CH.A 16+00 and CH.A 19+26. · Grouting work in Pit A at Wan Po Road will be commenced. · Grouting and following excavation works in Pit B at Wan Po Road will be continued. · Excavation work and installation of temporary shoring system (7th layer of waling) in working Pit C in Wan Po Road will be continued. · Mainlaying work at Landfill Stage 1’s cycle track will be continued between CH.FC2+16 and CH.FC5+83. · Mainlaying works in Area A and B in Landfill Stage 1 will be continued. · Excavation and ELS installation work at Pit O near HK Velodrome will be continued. · Excavation and ELS installation work in Pit M will be continued. · Excavation and ELS installation work in Pit N will be continued. · Inspection pit excavation at STLA (Simplified Temporary Land Allocation) land near Pung Loi Road will be continued. · Sheet Pilling Works in Pit P near Po Shun Road will be continued. |
A13. The major environmental impacts brought by the above construction works will include:
· Construction dust and noise generation from inspection pit excavation works, pipes mainlaying, grouting, sheet pile driving and open-trench works
· Waste generation from construction activities
A14. The key environmental mitigation measures for the Project in the coming reporting period associated with the above construction works will include:
· Dust suppression by regular wetting and water spraying for inspection pit excavation works, pipes mainlaying, grouting, sheet pile driving and open-trench works
· Reduction of noise from equipment and machinery on-site
·
Sorting and storage of general refuse and
construction waste
Figure 1.1 Project Organization Chart
Party |
Position |
Name |
Telephone no. |
Penta-Ocean -Concentric Joint Venture |
Environmental Officer |
Calvin Chik |
9863 5630 |
Acuity Sustainability Consulting Limited |
Environmental Team Leader |
Jacky Leung |
2698 6833 |
ANewR Consulting Limited |
Independent Environmental Checker |
James Choi |
2618 2831 |
Table 1.2 Summary of the Construction Works Undertaken during the Reporting Month
Location of works |
Construction works undertaken |
Remarks on progress |
Portion H of the Project Site |
· Pipes had been laid from CH.CT0+07~CH.CT2+64. · Concreting work of the top slab and wall of DN900 HSV chamber at CH.CA4+30 was completed in August 2020. · Construction of washout chamber and DAV/IT combined chamber were completed. |
Completed |
Portion J of the Project Site |
· Laying work of 30 degrees bend DN1200 MS pipe at CH.A6+53 was completed. · Backfilling and road reinstatement work of the bus lay-by and carriageway were completed at CHA12+45. · Sheetpiling work in pit A was completed. · Excavation to 9mBG and installation of 6th layer of waling and strut were completed at Pit C. · Trench excavation and Pipe mainlaying works were completed at CH.FC2+16 1st work front at the cycle track. · Pipe mainlaying and reinstatement works were completed at CH.FC5+49 2nd work front at the cycle track. |
Completed |
· Pipes were laid between CH.FC13+26 and Ch.FC12+05 in Area B. Backfilling work and reinstatement of existing geotextile of these trenches were in-progress. · Pipes were laid between CH.FB1+98 to CH.FB3+27 and was in progress between CH.FB3+27 to CH.FB3+60 at Area A. · Pipes were laid between CH.FC13+26 and Ch.FC12+05 in Area B. Backfilling work and reinstatement of existing geotextile of these trenches were in-progress. · Excavation work for 1st layer of struts and waling was in-progress at Pit O. · Excavation work for 2nd layer of struts and waling was in-progress at Pit M. · Excavation work for 1st layer of struts and waling was in-progress at Pit N. · The driving work of sheet piles at Pit P was in-progress. |
In progress |
Table 1.3 Summary of the Status of Valid Environmental Licence, Notification, Permit and Documentations
Permit/ Licences/ Notification |
Reference |
Validity Period |
Remarks |
Variation of Environmental Permit |
EP no.: EP-503/2015/A |
Throughout the Contract |
- |
Notification of Construction Works under the Air Pollution Control (Construction Dust) Regulation (Form NA) |
Ref no.: 423775 |
Throughout the Contract |
- |
Chemical Waste Producer Registration |
WPN: 5213-839-P3287-01 |
Throughout the Contract |
- |
Billing Account for Disposal of Construction Waste |
A/C no.: 7029491 |
Throughout the Contract |
- |
Water Discharge Licence |
WT00032336-2018 |
Until 31 Dec 2023 |
- |
Construction Noise Permit |
GW-RE0563-20 |
Until 28 Sep 2020 |
- |
Construction Noise Permit (Hong Kong Velodrome) |
GW-RE0364-20 |
Until 17 Nov 2020 |
- |
Table 1.4 Summary of Status for Key Environmental Aspects under the EM&A Manual
The baseline noise monitoring result has been reported in Baseline Monitoring Report and submitted to EPD under VEP Condition 3.4. |
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Landfill Gas |
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Impact Monitoring |
On-going |
Table 2.1 Noise Monitoring Parameters, Time, Frequency and Duration
Time |
Frequency |
Duration |
Parameters |
Daytime: 0700-1900 |
Once per week |
Continuously in Leq 5min/Leq 30min (average of 6 consecutive Leq 5min) |
Leq, L10 & L90 |
Table 2.2 Noise Monitoring Location
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 |
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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 |
Table 2.3 Impact Noise Monitoring Equipment
Equipment |
Brand and Model |
Detection Limit |
Sound Level Meter |
Nti XL2 |
30-130 dB(A) |
Sound Level Meter Calibrator |
Rion NC-74 |
Nil |
Pocket Wind Meter Anemometer |
Kestrel 1000 Wind Meter |
Nil |
Table 2.4 Action and Limit Levels for Noise
Time Period |
Action |
Limit (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: (a) Limits specified in the GW-TM and IND-TM for construction and operation noise, respectively. |
3.1 The 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 month are summarised in Table 3.1. Details of cumulative waste management data are presented as a waste flow table in Appendix H.
Table 3.1 Quantities of waste generated from the Project
Reporting period |
Quantity |
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Inert C&D Materials (in ‘000m3) |
Chemical Waste (in ‘000kg) |
Non-inert C&D Materials |
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Others, e.g. General Refuse disposed at Landfill (in ‘000m3) |
Recycled materials |
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Paper/card board (in ‘000kg) |
Plastics (in ‘000kg) |
Metals (in ‘000kg) |
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August-20 |
1.272 |
0.000 |
0.000 |
0.048 |
0.000 |
0.000 |
4.1 Monitoring Requirement
4.2 Monitoring Location
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Figure 4.1 Monitoring Location - CH.A 6+70 |
Figure 4.2 Monitoring Location – CH.A 12+30 ~ 12+50 |
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Figure 4.3 Monitoring Location – CH.A 13+50 ~ 14+00 (Pit A) |
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Figure 4.4 Monitoring Location – CH.A 15+50 ~16+50 (Jacking Pit B) |
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Figure 4.5 Monitoring Location – CH.A 19+15 ~19+50 (Pit C) |
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Figure 4.6a Monitoring Location – Mau Wu Tsai 1 |
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Figure 4.6b Monitoring Location – Mau Wu Tsai 2 |
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Figure 4.6c Monitoring Location – Mau Wu Tsai 3 |
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Figure 4.7 Monitoring Location –CH.CA 0+00 to CH.CA 04+25 (CH.C 7+40 ~ 12+00) |
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Figure 4.8a Monitoring Location – Pit 137A (137 Pit A) |
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Figure 4.8b Monitoring Location – Pit 137B (137 Pit B) |
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Figure 4.8c Monitoring Location – Pit 137C (137 Pit C) |
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Figure 4.9 Monitoring Location – Jacking Pit F |
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Figure 4.10a Monitoring Location – Landfill Stage 1 (Area B01-B02) |
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Figure 4.10b Monitoring Location – Landfill Stage 1 (FC0+50-FC0+92) |
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Figure 4.10c Monitoring Location – Landfill Stage 1 (FC4+30-FC5+30) |
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Figure 4.11a Monitoring Location – Pit L-M-N, J1A, K |
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Figure 4.11b Monitoring Location – Pit N-O-P |
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Figure 4.11c Monitoring Location – Pit Q |
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Figure 4.12 Po Lam South Road |
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Figure 4.13 Monitoring Location – Area A02 |
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Figure 4.14 Monitoring Location – WPR IP1 |
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Figure 4.15a Monitoring Location - CH.CT 0+07 ~ 2+58 |
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Figure 4.15b Monitoring Location - CH.CT 2+58 ~ 2+66 |
4.3 Monitoring Parameters
4.4 Action and Limit Level
Parameters |
Action Level |
Limit Level |
Oxygen (O2) |
<19% O2 |
<19% O2 |
Methane (CH4) |
>10% LEL |
>80% LEL |
Carbon Dioxide (CO2) |
>0.5% CO2 |
>1.5% CO2 |
4.5 Monitoring Equipment
methane |
4.5.2 0-100% Lower Explosion Limit (LEL) and 0-100% v/v; |
oxygen |
4.5.3 0-25% v/v; |
carbon dioxide |
0-100% v/v; and |
barometric pressure |
mBar (absolute) |
methane |
4.5.4 >10% LEL; |
oxygen |
4.5.5 >0.5% by volume; and |
carbon dioxide |
<19% by volume |
barometric pressure |
mBar (absolute) |
Table 4.2 Landfill Gas Monitoring Equipment
Equipment |
Brand and Model |
Calibration Expiry Date |
Portable Gas Detector |
QRAE II |
28 August 2020 |
Portable Gas Detector |
QRAE III |
27 July 2021 |
4.6 Monitoring Results
Figure 5.1 Environmental Complaint Handling Procedure
Table 6.1 Site Inspection Record
Date |
Inspected Site Portion |
Time |
06 August 2020 |
Portion J |
9:36am – 11:20am |
13 August 2020 |
Portion J and H |
9:15am – 12:30pm |
20 August 2020 |
Portion J |
9:35am – 12:00pm |
24 August 2020 |
Portion J |
9:18am – 11:30am |
Table 6.2 Site Observations
Date |
Environmental Observations |
Follow-up Status |
06 August 2020 |
1. Chemicals were not placed inside a drip tray at Pit C. 2. Dust suppression mitigations were not implemented at CHA6+64. 3. Gully was not protected by a geo-textile at CHA6+64. 4. Environmental permit was not observed at the vehicle entrance/exit at the Hong Kong Velodrome. |
1. Chemicals were placed inside a drip tray. 2. Dusty materials were removed. 3. Gully was protected by a geo-textile at CHA6+64. 4. Environmental permit was added at the vehicle entrance/exit at the Hong Kong Velodrome. |
13 August 2020 |
1. Chemicals were not placed inside a drip tray at Pit C. 2. Drainage system was not fully protected by a geo-textile at CHA6+64. 3. Construction boundaries were not protected fully by sandbags at Jacking Pit A. 4. Construction exit/entrance was not free from dusty materials at CHA12+50. |
1. Chemicals were placed inside a drip tray. 2. Gully was fully protected by a geo-textile at CHA6+64. 3. Construction boundaries were protected fully by sandbags at Jacking Pit A. 4. Construction exit/entrance was free from dusty materials at CHA12+50. |
20 August 2020 |
1. Chemicals were not placed inside the drip tray at Pit C and Landfill Stage 1 Area A. 2. Gully was not protected fully by sandbags and geo-textile at CHA6+64. 3. Construction exit/entrance was not free from dusty materials at CHA12+50. 4. Construction boundaries were not protected fully by sandbags at Pit A. |
1. Chemicals were removed or placed inside the drip tray at Pit C and Landfill Stage 1 Area A. 2. Gully was protected fully by sandbags and geo-textile at CHA6+64. 3. Construction exit/entrance was cleaned at CHA12+50. 4. Construction boundaries were protected fully by sandbags at Pit A. |
24 August 2020 |
1. The contractor was reminded to place an environmental permit at the site entrance/exit at Hong Kong Velodrome. |
1. The environmental permit was placed at the site entrance/exit at Hong Kong Velodrome. |
Table 7.1. Key works for the next reporting month
Location |
Works Conducting in the next reporting month |
Portion H of the Project Site |
· Construction of DN900 HSV chamber near SENTX (SENT Landfill Extension) Entrance including installation of DN150 by-pass pipe and casting of thrust block concrete will be continued in September 2020. · Preparation work for the construction of 137PitA, 137PitB and 137pitC near SENTX Entrance Gate will be continued. · Casting of tee thrust block concrete at washout chamber will be continued in September 2020. · Preparation work for the water pressure test of DN1200 MS pipe in Area 137 will be continued. · Pipe Mainlaying works will be continued at the proposed location of the desalination plant. |
Portion J of the Project Site |
· Continue 3 nos. of work fronts implemented as scheduled for the open-trench at CH.A2+14, CH. A6+53 to 12+14. · Pipe jacking at working Pit A, Pit B and Pit C will be continued at CH.A 13+70, CH.A 16+00 and CH.A 19+26. · Grouting work in Pit A at Wan Po Road will be commenced. · Grouting and following excavation works in Pit B at Wan Po Road will be continued. · Excavation work and installation of temporary shoring system (7th layer of waling) in working Pit C in Wan Po Road will be continued. · Mainlaying work at Landfill Stage 1’s cycle track will be continued between CH.FC2+16 and CH.FC5+83. · Mainlaying works in Area A and B in Landfill Stage 1 will be continued. · Excavation and ELS installation work at Pit O near HK Velodrome will be continued. · Excavation and ELS installation work in Pit M will be continued. · Excavation and ELS installation work in Pit N will be continued. · Inspection pit excavation at STLA (Simplified Temporary Land Allocation) land near Pung Loi Road will be continued. · Sheet Pilling Works in Pit P near Po Shun Road will be continued. |
7.2 The major environmental impacts brought by the above construction works will include:
· Construction dust and noise generation from inspection pit excavation works, pipes mainlaying, grouting, sheet pile driving and open-trench works
· Waste generation from construction activities
· Dust suppression by regular wetting and water spraying for inspection pit excavation works, pipes mainlaying, grouting, sheet pile driving and open-trench works
· Reduction of noise from equipment and machinery on-site
· Sorting and storage of general refuse and construction waste
Construction Programme
Overview of Mainlaying in Tseung Kwan O
Figure B1. Overview of Mainlaying in TKO |
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Figure B2. Location Plan for Portion J - CH.A 0+00 to CH.A 0+78 |
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Figure B3a. Location Plan for Portion J - CH.A 5+00 to CH.A 6+64 |
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Figure B3b. Location Plan for Portion J - CH.A 6+70 |
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Figure B4. Location Plan for Portion J - CH.A 12+30 to CH.A 12+50 Figure B5. Location Plan for Portion J – CH. A13+50 to CH.A 14+00 (Pit A) |
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Figure B6. Location Plan for Portion J – CH. A15+50 to CH.A 16+50 (Pit B) |
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Figure B7. Location Plan for Portion J – CH.A 19+15 to CH.A 19+50 (Pit C) Figure B8a. Location Plan for Portion J – Pit L-M-N, K, J1A Figure B8b. Location Plan for Portion J – Pit N-O-P Figure B8c. Location Plan for Portion J – Pit Q
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Figure B9a. Location Plan for Mau Wu Tsai 1 |
Figure B9b. Location Plan for Mau Wu Tsai 2 & 3 |
Figure B10. Location Plan for Jacking Pit F Figure B11a. Location Plan – Landfill Stage 1 (Area B01-B02)
Figure B11b. Location Plan – Landfill Stage 1 (Area FC0+50 -FC0+92) Figure B11c. Location Plan – Landfill Stage 1 (Area FC4+30 -FC5+30)
Figure B12. Monitoring Location – Po Lam South Road Figure B13. Monitoring Location – Area A02 Figure B14. Location Plan for WPR IP1 |
Figure B15a. Location Plan for CH.CT 0+07 – 2+58 Figure B15b. Location Plan for CH.CT 2+58 – 2+66 |
Figure
B16. Location Plan for Portion H– CH.C 7+40~CH.C 12+00 (CH.CA 0+00 ~
CH.CA4+25)
Figure B17a. Location Plan for Portion H– Pit 137B |
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Figure B17b. Location Plan for Portion H– Pit 137A |
Figure B17c. Location Plan for Portion H– Pit 137C
Summary of Implementation Status of Environmental Mitigation
Recommended Environmental Protection Measures/ Mitigation Measures |
Objectives of the recommended measures & main concerns to address |
Implementation Agent |
Implementation Stage |
Implementation status |
Relevant Legislation & Guidelines |
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D |
C |
O |
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Air Quality |
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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 |
|
N/A |
Air Pollution Control (Construction Dust) |
S4.8.1 |
Impervious sheet will be provided for skip hoist for material transport. |
Land site/ During Construction, particularly dry season |
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 |
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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 |
|
N/A |
|
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) |
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ü |
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N/A |
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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, rectified after observation |
|
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, rectified after observation |
|
S4.8.1 |
Stockpiles of more than 20 bags of cement, dry pulverised 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 |
|
Implemented |
|
S4.8.1 |
All exposed areas will be kept wet always to minimise dust emission. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
|
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 |
Guidance Note on a Best |
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 |
|
Note: D – Design stage C – Construction O – Operation
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 |
||||||
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, |
S5.7 |
Silencers or mufflers on construction equipment will be utilised and will be properly maintained during the construction phase. |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the Reduction of Noise from Construction Works, |
S5.7 |
Mobile plant, if any, will be sited as far away from NSRs as possible. |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
A Practical Guide for the Reduction of Noise from Construction Works, |
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 |
A Practical Guide for the Reduction of Noise from Construction Works, |
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 |
A Practical Guide for the Reduction of Noise from Construction Works, |
S5.7 |
Material stockpiles and other structures will be effectively utilised, wherever practicable, in screening noise from on-site construction activities. |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the Reduction of Noise from Construction Works, |
S5.7 |
Use of Quite Powered Mechanical Equipment (QPME). |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
A Practical Guide for the Reduction of Noise from Construction Works, |
S5.7 |
Movable noise barriers of 3m in height with skid footing should be used and located within a few metres 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 openings or gaps. |
Noise control/ During construction |
Contractor(s) |
|
ü |
|
N/A |
A Practical Guide for the Reduction of Noise from Construction Works, |
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 |
A Practical Guide for the Reduction of Noise from Construction Works, |
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 |
|
Implemented |
A Practical Guide for the Reduction of Noise from Construction Works |
S5.7 |
PMEs will not be used at the works areas near educational institutions with residual impact (ie 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 |
|
Implemented |
A Practical Guide for the Reduction of Noise from Construction Works |
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 |
|
S5.9 |
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 (ET) |
|
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)/ Environmental Team (ET) & Independent Environmental Checker (IEC) |
|
ü |
|
Implemented |
- |
Note: D – Design stage C – Construction O – Operation
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 |
||||||
Water Quality |
||||||||
S6.9 |
Dredged marine sediment will be disposed of in a gazetted marine disposal area in accordance with marine dumping permit conditions of the Dumping at Sea Ordinance (DASO). |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
S6.9 |
All vessels must have a clean ballast system. |
Marine Dredging/ During construction |
Contractor(s) |
|
ü |
|
N/A |
- |
S6.9 |
No discharge of sewage/grey wastewater should be allowed. Waste water 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 |
|
N/A |
- |
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, rectified after observation |
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 |
|
N/A |
- |
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 |
|
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 |
|
Implemented |
- |
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 |
|
N/A |
- |
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 |
N/A |
Technical Memorandum for Effluents Discharged into Drainage and Sewerage Systems Inland and Coastal Waters |
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, rectified after observation |
- |
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)/ Environmental Team (ET) & Independent Environmental Checker (IEC) |
|
ü |
|
Implemented |
- |
Note: D – Design stage C – Construction O – Operation
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 |
||||||
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 mobilisation/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
- |
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 mobilisation/ 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 |
DEVB TC(W) No. 8/2010, Enhanced Specification for Site Cleanliness and Tidiness. |
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 |
|
N/A |
Chapters 2 & 3 Code of Practice on the Packaging, Labelling & Storage of Chemical Wastes published under the Waste Disposal Ordinance (Cap 354), Section 35 |
S8.5 |
Regular cleaning and maintenance programme for drainage systems, sumps and oil interceptors. |
Land site/ During construction |
Contractor(s) |
|
ü |
|
Implemented, rectified after observation |
Waste Disposal Ordinance (Cap 354) |
S8.5 |
A recording system for the amount of wastes 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 & Demolition Materials |
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 |
S8.5 |
Encourage collection of aluminium cans and waste paper 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 Demolition Material Including Rock |
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 |
|
N/A |
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, rectified after observation |
- |
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 mobilisation/ 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 mobilisation/ During construction |
Contractor(s) |
|
ü |
|
Implemented |
DEVB TC(W) No. 6/2010, Trip Ticket System for Disposal of Construction & Demolition Materials |
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 |
|
N/A |
- |
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, rectified after observation |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
S8.5 |
Storage areas for chemical waste shall have adequate ventilation. |
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 |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
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 |
Waste Disposal (Chemical Waste) (General) Regulation; Code of Practice on the Packaging, Handling and Storage of Chemical Wastes |
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 |
N/A |
- |
S8.5 |
Recycling bins will be provided at strategic locations within the Site to facilitate recovery of recyclable materials (including aluminium 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) |
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 |
- |
Note: D – Design stage C – Construction O – Operation
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 |
||||||
|
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 |
|
N/A |
- |
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 |
ü |
|
N/A |
- |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
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)/ Environmental Team (ET) |
|
ü |
|
Implemented |
- |
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 |
|
N/A |
- |
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 |
|
N/A |
- |
Note: D – Design stage C – Construction O – Operation
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 |
||||||
|
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 |
- |
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 (ie 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 |
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 |
|
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 |
N/A |
|
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 |
- |
Note: D – Design stage C – Construction O – Operation
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 |
||||||
|
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 metre. |
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 |
|
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 |
|
S12.7 |
The manholes and utility pits within the Project Site and along the fresh water 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
Noise Monitoring Equipment Calibration Certificate
(BLANK)
Event/Action Plan for Noise Exceedance
Monthly Summary Waste Flow Table
Name of Department: WSD Contract No. / Works Order No.: __13/WSD/16__
Monthly Summary Waste Flow Table for August 2020
Month |
Actual Quantities of Inert Construction Waste Generated Monthly |
|||||||||
Total Quantity Generated (see Note 4) |
Hard Rock and Large Broken Concrete (see Note 3) |
Reused in the Contract |
Reused in other Projects |
Disposed of as Public Fill |
Imported Fill (see Note 1) |
|||||
(in ‘000m3) |
(in ‘000m3) |
(in ‘000m3) |
(in ‘000m3) |
(in ‘000m3) |
(in ‘000m3) |
|||||
2018 |
1.157 |
0.063 |
0.000 |
0.000 |
1.157 |
0.518 |
||||
2019 |
5.178 |
0.043 |
2.211 |
0.000 |
2.520 |
3.200 |
||||
Jan 2020 |
0.153 |
0.003 |
0.000 |
0.000 |
0.153 |
0.077 |
||||
Feb 2020 |
0.186 |
0.000 |
0.000 |
0.000 |
0.186 |
0.170 |
||||
Mar 2020 |
0.282 |
0.000 |
0.000 |
0.000 |
0.282 |
0.201 |
||||
Apr 2020 |
0.497 |
0.000 |
0.000 |
0.000 |
0.497 |
0.069 |
||||
May 2020 |
1.294 |
0.000 |
0.291 |
0.000 |
1.003 |
0.030 |
||||
Sub-total |
2.412 |
0.003
|
0.291 |
0.000 |
2.121 |
0.547 |
||||
Jun 2020 |
0.948 |
0.000 |
0.000 |
0.000 |
0.948 |
0.200 |
||||
Jul-2020 |
1.514 |
0.006 |
0.000 |
0.000 |
1.514 |
0.075 |
||||
Aug-2020 |
1.272 |
0.000 |
0.000 |
0.000 |
1.272 |
0.111 |
||||
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
||||
Total for 2020 |
6.146 |
0.009
|
0.291 |
0.000 |
5.855 |
0.933 |
||||
Month |
Actual Quantities of Non-inert Construction Waste Generated Monthly |
|||||||||
Metals |
Paper/ cardboard packaging |
Plastics (see Note 2) |
Chemical Waste |
Others, e.g. General Refuse disposed at Landfill |
||||||
(in ‘000kg) |
(in ‘000kg) |
(in ‘000kg) |
(in ‘000kg) |
(in ‘000m3) |
||||||
2018 |
0.000 |
0.417 |
0.000 |
0.000 |
0.139 |
|||||
2019 |
0.000 |
0.062 |
0.000 |
0.000 |
0.102 |
|||||
Jan 2020 |
0.000 |
0.055 |
0.000 |
0.000 |
0.002 |
|||||
Feb 2020 |
0.000 |
0.050 |
0.000 |
0.000 |
0.001 |
|||||
Mar 2020 |
0.000 |
0.052 |
0.000 |
0.000 |
0.001 |
|||||
April 2020 |
0.000 |
0.043 |
0.000 |
0.000 |
0.002 |
|||||
May 2020 |
0.000 |
0.058 |
0.000 |
0.000 |
0.020 |
|||||
Sub-total |
0.000 |
0.258 |
0.000 |
0.000 |
0.026 |
|||||
Jun-2020 |
0.000 |
0.057 |
0.000 |
0.000 |
0.003 |
|||||
Jul-2020 |
0.000 |
0.050 |
0.000 |
0.000 |
0.001 |
|||||
Aug-2020 |
0.000 |
0.048 |
0.000 |
0.000 |
0.000 |
|||||
|
|
|
|
|
|
|||||
|
|
|
|
|
|
|||||
|
|
|
|
|
|
|||||
|
|
|
|
|
|
|||||
Total for 2020 |
0.000 |
0.413 |
0.000 |
0.000 |
0.030 |
|||||
Notes:
1. The waste flow table shall also include C&D materials that are specified in the Contract to be imported for use at the Site.
2. Plastic refer to plastic bottles/containers, plastic sheets/foam from packaging materials.
3. Broken concrete for recycling into aggregate.
4. “Total Quantity Generated” only refers to the actual quantities of inert C&D materials generated monthly excluding those that will be recycled (Hard Rock and Large Broken Concrete, Reused in the Contract, Reused in other Projects). Imported fill will not be included in “Total Quantity Generated” as those C&D materials are not generated from this project.
5. C&D materials in tonnes are converted to meter cube (m3) on a scale of 0.5.
6. Source and types of Imported Fill in the reporting month
i. K. Wah Quarry Company Limited: (Soil) 73.54 m3 (147.08 tonnes/6 cars)
ii. K. Wah Quarry Company Limited: (Sub-base) 37.88 m3 (75.75 tonnes/3 cars)
7. The amount of Hard Rock and Large Broken Concrete are disposed to public fill, the breakdown of C&D materials disposed to public fill is shown as below:
Type of C&D Materials |
Description of C&D Materials |
C&D Waste Disp osed (Volume) (m3) |
Inert |
Bentonite |
-- |
Broken Concrete |
71.2 |
|
Broken Rock |
-- |
|
Mixed Construction Waste (>50% inert) |
-- |
|
Building Debris |
-- |
|
Mixed Rock and Soil |
814.1 |
|
Reclaimed Asphalt Pavement |
117.3 |
|
Slurry |
158.95 |
|
Soil |
110.65 |
|
TOTAL = |
1272.2 |
|
Non-inert |
--0 |
0.00 |
Landfill Gas Monitoring Equipment Calibration Certificate
Landfill Gas Monitoring Data
Complaint Log and Regulatory Compliance Proforma
Statistical Summary of Environmental Complaints
Reporting Period |
Environmental Complaint Statistics |
||
Frequency |
Cumulative |
Complaint Nature |
|
01 August 2020 - 31 August 2020 |
0 |
0 |
N/A |
Statistical Summary of Environmental Summons
Reporting Period |
Environmental Summons Statistics |
||
Frequency |
Cumulative |
Details |
|
01 August 2020 - 31 August 2020 |
0 |
0 |
N/A |
Statistical Summary of Environmental Prosecution
Reporting Period |
Environmental Prosecution Statistics |
||
Frequency |
Cumulative |
Details |
|
01 August 2020 - 31 August 2020 |
0 |
0 |
N/A |
Site Inspection Proforma
Proactive
Environmental Protection Proforma
Proactive Environmental
Protection for the Next Reporting Month
Reporting Period |
Activity |
Major Environmental Impact |
Environmental Mitigation Measure |
1 September 2020 -
|
- Excavation of trench - Mainlaying of pipe - Backfilling of the trench - Work fronts for open trench - Work fronts for pipe jacking - Trial pits works - Pile sheet driving works - Grouting works |
Construction dust and noise generation; constriction wastes |
- Dust suppression by regular wetting and water spraying - Reduction of noise from equipment and machinery on-site - Sorting and storage of general refuse and construction waste |
Impact
Monitoring Schedule of Next Reporting Month
(Blank)