Executive Summary
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
2.1 Air quality
2.2 EM&A Site Inspection
2.3 Landfill Gas Hazard Monitoring
2.4 Waste Management Status
2.5 Environmental Licenses and Permits
2.6 Implementation Status of Environmental Mitigation Measures
2.7 Summary of Exceedances of the Environmental Quality Performance Limit
2.8 Summary of Complaints, Notification of Summons and Successful Prosecutions
3.1 Construction Activities for the Coming Quarter
3.2 Key Issues for the Coming Quarter
4 Conclusions and recommendations
4.1 Conclusions
List of Appendices
Appendix A Project Organization for Environmental Works
Appendix B Construction Programmes
Appendix C Implementation Schedule of Environmental Mitigation Measures (EMIS)
Appendix D Summary of Action and Limit Levels
Appendix F EM&A Monitoring Schedule
Appendix G Landfill Gas Monitoring Graphical Presentation
Appendix H Quarterly Summary of Waste Flow Table
Under Contract No. HY/2017/10, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake Northern Connection Tunnel Buildings, Electrical and Mechanical Works of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM Asia Company Limited was appointed by HyD as the Engineer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET) in accordance with Environmental Permit No. EP-354/2009/A. Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO). Subsequent applications for variation of environmental permits (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.
The construction phase of the Contract commenced on 7 June 2018 and will tentatively be completed by 2021. The impact monitoring of the EM&A programme, including air quality and environmental site inspections, were commenced on 7 June 2018.
This is the Sixth Quarterly EM&A Report presenting the EM&A works carried out during the period from 1 September to 30 November 2019 for the Contract No. HY/2017/10 Northern Connection Tunnel Buildings, Electrical and Mechanical Works (the “Contract”) in accordance with the Updated EM&A Manual of the TM-CLK Link Project. As informed by the Contractor, major activities in the reporting period included:
September 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Building structure at Fire Services Department Building;
· Building Structure at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Building Structure, Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Building Structure at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
October 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Building Structure at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Building Structure, Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Building Structure at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
November 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
A summary of monitoring and audit activities conducted in the reporting period is listed below ([1]):
24-hour TSP Monitoring 30 sessions
1-hour TSP Monitoring 30 sessions
Landfill Gas Hazard Monitoring 75 days
Joint Environmental Site Inspection 13 sessions
Summary of Breaches of Action/Limit Levels
Breaches of Action and Limit Levels for Air Quality
Eight (8) Action Level and four (4) Limit Level exceedances of 1-hour TSP and no exceedance of 24-hour TSP Action and Limit Levels were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period.
Breaches of Action Level for Landfill Gas Hazard Monitoring
Results of landfill gas hazard monitoring in the reporting period complied with the Action Level.
Environmental Complaints, Non-compliance & Summons
There was no environmental complaint, notification of summons or successful prosecution recorded in the reporting period.
Reporting Change
There was no reporting change in the reporting period.
Upcoming Works for the Next Reporting Period
Works to be undertaken in the coming quarter include the following:
December 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at N1;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
January 2020
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at N1;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
February 2020
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at N1;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
Future Key Issues
Potential environmental impacts arising from the above upcoming construction activities in the coming quarterly period are mainly associated with dust and waste management issues.
According to the findings of the Northwest New Territories (NWNT) Traffic and Infrastructure Review conducted by the Transport Department, Tuen Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be operating beyond capacity after 2016. This forecast has been based on the estimated increase in cross boundary traffic, developments in the Northwest New Territories (NWNT), and possible developments in North Lantau, including the Airport developments, the Lantau Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.
An Environmental Impact Assessment (EIA) of TM-CLKL (the Project) was prepared in accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical Memorandum of the Environmental Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report (EIAO Register Number AEIAR-146/2009), an Environmental Permit (EP-354/2009) for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4 November 2009, and EP variation (VEP) (EP-354/2009/A) was issued on 8 December 2010. Subsequent applications for variation of environmental permits (VEPs), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.
Under Contract No. HY/2017/10, Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the Northern Connection Tunnel Buildings, Electrical and Mechanical Works of TM-CLKL while AECOM Asia Company Limited was appointed by HyD as the Engineer. For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET). Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).
The construction phase of the Contract commenced on 7 June 2018 and will be tentatively completed by 2021. The impact monitoring phase of the EM&A programme, including air quality and environmental site inspections, commenced on 7 June 2018.
The general layout plan of the Contract components is presented in Figures 1.1 & 1.2a to c.
The organization structure of the Contract is shown in Appendix A. The key personnel contact names and contact details are summarized in Table 1.1 below.
Table 1.1 Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
HyD (Highways Department) |
Project Coordinator |
Joseph Lee |
2762 4958 |
3188 6614 |
|
Senior Engineer |
Cheng Pan
|
2762 3383 |
3188 6614 |
ER (AECOM Asia Company Limited)
|
Principle Resident Engineer |
S. W. Fok |
2293 6200 |
2293 6300 |
|
Resident Engineer
|
Desmond Fung |
2293 6200 |
2293 6300 |
ENPO / IEC (Ramboll Hong Kong Ltd.) |
ENPO Leader
|
Y.H. Hui |
3465 2850 |
3465 2899 |
IEC
|
Dr. F.C. Tsang |
3465 2851 |
3465 2899 |
|
Contractor (Gammon Construction Limited) |
Site Agent
|
Kenneth Tai |
9039 4723 |
- |
Environmental Officer |
Max Poon |
9103 6303 |
- |
|
|
|
|
|
|
ET (ERM-HK) |
ET Leader |
Dr. Jasmine Ng |
2271 3311 |
2723 5660 |
The construction phase of the Contract commenced on 7 June 2018. The rolling construction programme for the period of September to November 2019 is shown in Appendix B.
As informed by the Contractor, details of the major works carried out in this reporting period are listed below:
September 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Building structure at Fire Services Department Building;
· Building Structure at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Building Structure, Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Building Structure at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
October 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Building Structure at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Building Structure, Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Building Structure at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
November 2019
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
The locations of the construction activities are shown in Figure 1.3. The Environmental Sensitive Receivers in the vicinity of the Contract are shown in Figure 1.4.
Figure 1.3 Locations of Major Construction Activities in the Reporting Period
The EM&A programme required environmental monitoring for air quality and environmental site inspections for air quality, water quality and waste management. The EM&A requirements and related findings for each component are summarized in the following sections
In accordance with the Updated EM&A Manual and the Enhanced TSP Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3) times every six (6) days and impact 24-hour TSP monitoring was carried out once every six (6) days when the highest dust impact was expected. 1-hr and 24-hr TSP monitoring frequency was increased to three times per day every three days and daily every three days, respectively, as excavation works for launching shaft under Contract No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section commenced on 24 October 2014.
Results of air quality monitoring were adopted from the published EM&A data of Contract No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section ([2]).
The locations of the monitoring stations overlapped with Contract No. HY/2012/08 are shown in Figure 2.1 and presented in Table 2.1.
Table 2.1 Locations of Impact Air Quality Monitoring Stations and its Corresponding Monitoring Requirements
Monitoring Station |
Monitoring Dates |
Location |
Description |
Parameters & Frequency |
ASR1 |
2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 September 2019
2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 October 2019
1, 4, 7, 10, 13, 16, 19, 22, 25 and 28 November 2019 |
Tuen Mun Fireboat Station
|
Office |
TSP monitoring 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 6 days 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in every 6 days Enhanced TSP monitoring (commenced on 24 October 2014 under Contract No. HY/2012/08) 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 3 days 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in every 3 days |
ASR5 |
Pillar Point Fire Station
|
Office |
||
AQMS1 |
Previous River Trade Golf
|
Bare ground |
||
ASR6 |
Butterfly Beach Laundry
|
Office |
||
ASR10 |
Butterfly Beach Park |
Recreational uses |
Eight (8) Action Level and four (4) Limit Level exceedances for 1-hour TSP were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. The exceedances were considered not related to this Contract upon further investigation and the investigation report is presented in Appendix I. No action is required to be undertaken in accordance with the Event Action Plan as presented in Appendix E.
Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract. Thirteen (13) site inspections were carried out in the reporting period on 6, 13, 20, and 27 September, 4, 11, 18 and 25 October and 1, 8, 15, 22 and 29 November 2019.
Key observations and recommendations during the site inspections in this reporting period are summarized in Table 2.2.
Table 2.2 Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Period
Inspection Date |
Observations |
Recommendations/ Remarks |
6 September 2019 |
Satellite Control Building General refuse should be disposed in capped rubbish bin. Accumuated waste in the refuse skip should be cleared.
|
Satellite Control Building The Contractor was reminded to dipose general refuse in capped rubbish bin. The Contractor was reminded to clear accumuated waste in refuse skip.
|
13 September 2019 |
North Ventilation Building Accumuated general refuse should be cleared.
|
North Ventilation Building The Contractor was reminded to clear accumuated general refuse.
|
20 September 2019 |
Fire Services Department Building Food waste should be removed from the waste skip. Cement bags should be covered by tarpaulin sheets.. Administration Building Water spraying should be applied under dry conditioins
|
Fire Services Department Building The Contractor was reminded to remove food waste from the waste skip. The Contractor was reminded to cover cement bags with tarpaulin sheets. Administration Building The Contractor was reminded to apply water spraying under dry conditions. |
27 September 2019 |
North Ventilation Building Damaged trip tray was observed. Fire Services Department Building Food waste should be removed from the site. Large amount of dust accumulated on the floor. |
North Ventilation Building The Contractor was reminded to replace the damaged trip tray. Fire Services Department Building The Contractor was reminded to restrict workers from food consumption on site and clear out food waste. The Contractor was reminded to closely apply dust-control measures. |
4 October 2019 |
Satellite Control Building Waste disposed of in the skip should be sorted. Scissors platform should be turned off when not in use.
|
Satellite Control Building The Contractor was reminded to sort waste disposed of in the skip. The Contractor was reminded to shut down scissors platform when not in use.
|
11 October 2019 |
North Ventilation Building Construction waste should be regularly removed. Fire Services Department Building Construction waste should be regularly removed. Cement bags should be covered.
|
North Ventilation Building The Contractor was reminded to clear construction waste. Fire Services Department Building The Contractor was reminded to clear construction waste. The Contractor was reminded to cover cement bags.
|
18 October 2019 |
Toll Control Building General refuse was observed. |
Toll Control Building The Contractor was reminded to remove general refuse regularly. |
25 October 2019 |
North Ventilation Building Accumulated general refuse was observed. |
North Ventilation Building The Contractor was reminded to remove general refuse regularly. |
1 November 2019 |
Satellite Control Building Chemicals were observed not placed in drip tray.
|
Satellite Control Building The Contractor was reminded to place chemicals in drip tray.
|
8 November 2019 |
Satellite Control Building Chemical containers were observed not placed in drip tray. South Ventilation Building Pipe threading machine was observed not place in drip tray.
|
Satellite Control Building The Contractor was reminded to place chemical containers in drip tray. South Ventilation Building The Contractor was reminded to place the pipe threading machine in drip tray. |
15 November 2019 |
Fire Services Department Building Chemical waste container was observed not locked. |
Fire Services Department Building The Contractor was reminded to lock the chemical waste container. |
22 November 2019 |
Satellite Control Building Chemical containers were observed not placed in drip tray. |
Satellite Control Building The Contractor was reminded to place chemical containers in drip tray. |
29 November 2019 |
Maintenance Depot Chemicals were observed not placed in drip tray. |
Maintenance Depot The Contractor was reminded to place chemicals in drip tray. |
The Contractor has rectified all of the observations as identified during environmental site inspections in the reporting period.
In accordance with the Updated EM&A Manual of the TM-CLK Link Project, landfill gas hazard monitoring should be performed to ensure that the works area at Pillar Point Valley (PPV) Landfill is free of landfill gas during any excavations works. A total of 75 days of landfill gas hazard monitoring was conducted at Toll Control Building in the reporting period (Appendix F).
Results for landfill gas hazard monitoring are summarized in Table 2.3 and the monitoring data is provided in Appendix G.
Results of methane, oxygen and carbon dioxide in the reporting period complied with the Action Level. No action as stated in the Updated EM&A Manual of the TM-CLK Link Project and presented in Appendix D is required to be undertaken.
Table 2.3 Summary of Landfill Gas Hazard Monitoring Results in the Reporting Period
|
|
Average (%) |
Range (%) |
Action Level (%) (a) |
September 2019 |
Methane |
0 |
0 |
10/20 |
Oxygen |
20.8 |
20.8-20.9 |
19/18 |
|
|
Carbon Dioxide |
0.03 |
0.03-0.04 |
0.5/1.5 |
October 2019 |
Methane |
0 |
0 |
10/20 |
Oxygen |
20.8 |
20.7-20.9 |
19/18 |
|
Carbon Dioxide |
0.03 |
0.03-0.04 |
0.5/1.5 |
|
November 2019 |
Methane |
0 |
0 |
10/20 |
Oxygen |
20.8 |
20.7-20.9 |
19/18 |
|
|
Carbon Dioxide |
0.03 |
0.03-0.04 |
0.5/1.5 |
Notes: (a) Depending on the results of the measurements, actions required will vary. Actions in the event of landfill gas being detected in excavation/confined area was adopted from the Updated EM&A Manual of the TM-CLK Link Project |
The Contractor had submitted application form for registration as chemical waste producer under the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.
Wastes generated during this reporting period included mainly construction wastes (inert and non-inert). Reference has been made to the waste flow table prepared by the Contractor (Appendix H). The quantities of different types of wastes are summarized in Table 2.4.
Table 2.4 Quantities of Different Waste Generated in the Reporting Period
Month/Year |
Inert C&D Materials (a) (m3) |
Inert Construction Waste Re-used (m3) |
Non-inert Construction Waste (b) (kg) |
Imported Fill (m3) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
||
|
||||||||
September 2019 |
177 |
0 |
196,740 |
0 |
63 (d) |
|
|
0 |
October 2019 |
200 |
0 |
265,560 |
0 |
56 |
|
|
0 |
November 2019 |
510 |
0 |
305,880 |
0 |
63 |
|
|
0 |
|
Notes: |
|||||||
|
(a) Inert construction wastes include hard rock and large broken concrete disposed as public fill. (b) Non-inert construction wastes include general refuse disposed at landfill. (c) Recyclable materials include metals, paper, cardboard, plastics, timber and others. (d) Updated figure is presented. |
The Contractor was advised to properly maintain on site C&D materials and waste collection, sorting and recording system, dispose of C&D materials and wastes at designated ground and maximize reuse/ recycle of C&D materials and wastes. The Contractor was also reminded to properly maintain the site tidiness and dispose of the wastes accumulated on site regularly and properly.
For chemical waste containers, the Contractor was reminded to treat chemical waste properly and store the containers temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.
The status of environmental licensing and permit is summarized in Table 2.5 below.
Table 2.5 Summary of Environmental Licensing and Permit Status
License/ Permit |
License or Permit No. |
Date of Issue |
Date of Expiry |
License/ Permit Holder |
Remarks |
Environmental Permit |
EP-354/2009/D |
13 March 2015 |
N/A |
HyD |
Tuen Mun- Chek Lap Kok Link |
APCO Construction Dust Notification |
433493 |
14 May 2018 |
N/A |
GCL |
For Tuen Mun working area |
Construction Waste Billing Account |
7030836 |
15 May 2018 |
N/A |
GCL |
N/A |
Chemical Waste Producer Registration |
5213-422-G2827-01 |
13 June 2018 |
N/A |
GCL |
N/A |
Discharge License under WPCO for Buildings at C2 area |
WT00031783-2018 |
22 October 2018 |
31 October 2023 |
GCL |
Sampling Frequency: Bimonthly |
Discharge License under WPCO for Buildings at C3 area |
WT00032062-2018 |
30 October 2018 |
31 October 2023 |
GCL |
Sampling Frequency: Quarterly |
Construction Noise Permit |
GW-RW0267-19 |
21 June 2019 |
14 October 2019 |
GCL |
For Toll Control Building, Administration Building, Maintenance Depot, FSD, C&ED, Boundary Wall, Tunnel, Approach ramp, NVB and WA18 |
|
GW-RW0524-19 |
3 November 2019 |
29 April 2020 |
GCL |
For Toll Control Building, Administration Building, Maintenance Depot, FSD, C&ED, Boundary Wall, Tunnel, Approach ramp, NVB and WA18 |
Construction Noise Permit |
GW-RS0778-19 |
30 August 2019 |
28 Februry 2020 |
GCL |
For Kiosk S2 and SCB |
Construction Noise Permit |
GW-RS0448-19 |
25 September 2019 |
14 December 2019 |
GCL |
For Deck Void Lighting Installation |
In response to the site audit findings, the Contractors carried out all corrective actions.
A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix C. The necessary mitigation measures relevant to this Contract were implemented properly.
Eight (8) Action Level and four (4) Limit Level exceedances for 1-hour TSP were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. The exceedances were considered not related to this Contract upon further investigation and the investigation report is presented in Appendix I. No action is required to be undertaken in accordance with the Event Action Plan as presented in Appendix E.
No exceedance of Action and Limit Levels for 24-hour TSP was recorded in the reporting period.
Results of landfill gas hazard monitoring in the reporting period complied with the Action Level.
Cumulative statistics are provided in Appendix I.
The Environmental Complaint Handling Procedure is provided in Figure 2.2.
There was no environmental complaint, notification of summons or successful prosecution recorded in the reporting period.
Statistics on complaints, notifications of summons, successful prosecutions are summarized in Appendix I.
As informed by the Contractor, the major works for the Contract in the coming quarter are summarized below:
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at N1;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Booth;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
January 2020
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at N1;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
February 2020
Land-based Works
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Toll Control Building;
· Electrical and Mechanical Works at Ventilation Plant Room;
· Electrical and Mechanical Works at North Ventilation Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Administration Building;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Maintenance Depot;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at Fire Services Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at Customs and Excise Department Building;
· Electrical and Mechanical Works and Architectural Builder's Work at N1;
· Electrical and Mechanical Works at Kiosk N2;
· Electrical and Mechanical Works and Architectural Builder's Work and Finishes at the Tunnel;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at underpass at C3 area;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Satellite Control Building;
· Electrical and Mechanical Works and Architectural Builders Work and Finishes at Kiosk S2; and
· Electrical and Mechanical Works at South Ventilation Building.
Potential environmental impacts arising from the above upcoming construction activities are mainly associated with dust and waste management issues.
This Sixth Quarterly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 September to 30 November 2019, in accordance with the Updated EM&A Manual and the requirements of EP-354/2009/D.
Air quality monitoring (including 1-hour TSP and 24-hour TSP) was carried out in this reporting period.
Eight (8) Action Level and four (4) Limit Level exceedances for 1-hour TSP were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. The exceedances were considered not related to this Contract upon further investigation and the investigation report is presented in Appendix I. No action is required to be undertaken in accordance with the Event Action Plan as presented in Appendix E.
No exceedance of Action and Limit Levels for 24-hour TSP was recorded in the reporting month.
Results of landfill gas hazard monitoring in the reporting period complied with the Action Level.
Environmental site inspection was carried out thirteen (13) times in the reporting period. Remedial actions recommended for the deficiencies identified during the site audits were properly implemented by the Contractor.
There was no environmental complaint, notification of summons or successful prosecution recorded in the reporting period.
The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.