|
|
|
1.1
Background
1.2
Scope of Report
1.3
Organization Structure
1.4
Summary of Construction Works
2.1
Air quality
2.2
Landfill Gas Hazard Monitoring
2.3
EM&A Site Inspection
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 Month
3.2
Key Issues for the Coming Month
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 Calibration Certificate of
Monitoring Equipment
Appendix
H Landfill Gas Monitoring
Results and Graphical Presentation
Appendix I
Monthly 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
Eighteenth Monthly EM&A report presenting the EM&A works carried out
during the period from 1 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:
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
10 sessions
1-hour TSP
Monitoring
10 sessions
Landfill Gas
Hazard
Monitoring
26 days
Joint
Environmental Site Inspection 5
sessions
Summary of
Breaches of Action/Limit Levels
Breaches of
Action and Limit Levels for Air Quality
Five (5)
exceedances of Action Level and three (3) exceedances of Limit Level of 1-hour
TSP were recorded by the Environmental Team of Contract No. HY/2012/08
during the reporting period.
Breaches of
Action Level for Landfill Gas Hazard Montioring
Results of
landfill gas hazard monitoring in the reporting month 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 Month
Works to be
undertaken in the next monitoring period of December 2019 include the
following:
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.
Future Key
Issues
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of December 2019 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
three-month rolling construction programme is shown
in Appendix B.
As informed
by the Contractor, details of the major works carried out in this reporting
month are listed 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 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 Month
|
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 |
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 |
Five (5) exceedances of Action Level and three (3) exceedances of Limit
Level of 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 J. 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.
In accordance
with the Updated EM&A Manual of the TM-CLK Link Project, landfill gas hazard monitoring should be
perform to ensure that the works area at Pillar Point Valley (PPV) Landfill is
free of landfill gas during any excavations works. A total of 26 days of
landfill gas hazard monitoring was conducted at Toll Control Building during 1
to 30 November 2019 (Appendix
F).
The landfill
gas hazard monitoring was conducted in accordance to the Upated
EM&A Manual with a Altair 5X Gas Detector.
The calibration certificate for the equipment is presented in Appendix G.
Results for
landfill gas hazard monitoring are summarized in Table 2.2 and the
monitoring data is provided in Appendix
H.
Results of
methane, oxygen and carbon dioxide in the reporting month 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 2.2
Summary of Landfill Gas Hazard Monitoring Results in the Reporting Period
|
Average (%) |
Range (%) |
Action Level (%) (a) |
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. |
Site
inspections were carried out on a weekly basis to monitor the implementation of
proper environmental pollution control and mitigation measures under the
Contract. In the reporting month, five (5) site inspections were carried
out on 1, 8, 15, 22 and 29 November 2019.
Key
observations and recommendations during the site inspections in this reporting
period are summarized in Table 2.3.
Table
2.3 Specific Observations and
Recommendations during the Weekly Site Inspection in this Reporting Month
Inspection Date |
Observations |
Recommendations/ Remarks |
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 month.
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
I). The quantities of different types of wastes are summarized in
Table 2.4.
Table 2.4
Quantities of Different Waste Generated in the Reporting Month
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) |
|
|
|||||||
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. |
|
|||||
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 properly and store
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-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.
The landscape
and visual (L&V) mitigation measures were also monitored on weekly basis in
the reporting period. The monitoring status is summarized in Appendix C.
Five (5)
exceedances of Action Level and three (3) exceedances of Limit Level of 1-hour
TSP were recorded by the Environmental Team of Contract No. HY/2012/08
during the reporting period.
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 month complied with the Action
Level.
Cumulative
statistics are provided in Appendix
J.
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 J.
As informed
by the Contractor, the major works for the Contract in December 2019 will be:
·
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.
Potential environmental impacts arising from the
above upcoming construction activities in the next reporting month of December
2019 are mainly associated with dust and waste management issues.
This Eightheenth Monthly EM&A Report presents the findings of
the EM&A activities undertaken during the period from 1 to 30 November
2019, in accordance with the Updated EM&A Manual and the requirements of
EP-354/2009/D.
Air quality (including 1-hour TSP and 24-hour TSP)
monitoring were carried out in this reporting month.
Five (5)
exceedances of Action Level and three (3) exceedances of Limit Level of 1-hour
TSP were recorded by the Environmental Team of Contract No. HY/2012/08
during the reporting period. 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 month complied with the Action
Level.
Environmental site inspection was carried out five
(5) times in November 2019.
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.
([1])
ET justification on the Contract Specific
Environmental Monitoring and Audit activities under this Contract was submitted
to ENPO on 11 September 2018
([2])
Published EM&A data for impact air quality monitoring by Contract No.
HY/2012/08 are available at: http://www.hzmbenpo.com/