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
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 Twentieth Monthly EM&A report presenting the EM&A works carried
out during the period from 1 to 31 January 2020 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
and Architectural Builder's Work and
Finishes 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.
A summary of monitoring and audit
activities conducted in the reporting period is listed below ([1]):
24-hour
TSP
Monitoring
9 sessions
1-hour
TSP
Monitoring
9 sessions
Landfill
Gas Hazard
Monitoring
20 days
Joint
Environmental Site Inspection 5
sessions
Summary
of Breaches of Action/Limit Levels
Breaches
of Action and Limit Levels for Air Quality
No
exceedance of Action and Limit Levels for 1-hour TSP and 24-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 February 2020 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 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 February 2020 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 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.
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 |
3, 6, 9, 12, 15, 18, 21, 24
and 30 January 2020 |
Tuen Mun Fireboat Station |
Office |
TSP monitoring Ÿ
1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times
in every 6 days Ÿ
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) Ÿ
1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times
in every 3 days Ÿ
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 |
No exceedance of Action and Limit Levels
for 1-hour TSP and 24-hour
TSP were recorded by the Environmental Team of Contract No. HY/2012/08
during the reporting period. No action is required to be undertaken in accordance with
the Event Action Plan as presented in Appendix E.
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 20 days of landfill gas hazard
monitoring was conducted at Toll Control Building during 2 to 24 January 2020 (Appendix F). Informed
by the Contractor, no landfill gas monitoring is scheduled for February 2020 as
no excavation work at Toll Control Building will be undertaken in February
2020.
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 |
20.8-20.9 |
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 3, 10, 17, 24 and 31
January 2020.
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 |
3
January 2020 |
Satellite
Control Building Ÿ Chemical containers were observed not placed in
drip tray. Ÿ Housekeeping should be maintained. South
Ventilation Building Ÿ Oil drum on forklift should be removed. |
Satellite
Control Building Ÿ The Contractor was reminded to place chemical
containers in drip tray. Ÿ The Contractor was reminded to maintain better
housekeeping. South
Ventilation Building Ÿ The Contractor was reminded to remove the oil drum. |
10
January 2020 |
Tunnel Ÿ Accumulated general refuse should be removed. |
Tunnel Ÿ The Contractor was reminded to regularly cleanup
general refuse. |
17
January 2020 |
North Ventilation Building Ÿ
Nil |
North Ventilation Building Ÿ
Nil |
24
January 2020 |
South
Ventilation Building Ÿ Drip
tray for pipe threading machine was observed damaged. |
South
Ventilation Building Ÿ The Contractor was reminded to provide a proper
drip tray. |
31
January 2020 |
Tunnel Ÿ Accumulated general refuse should be removed. |
Tunnel Ÿ The Contractor was reminded to maintain better
housekeeping. |
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) |
|
|
|||||||
January 2020 |
10 |
0 |
187,500 |
0 |
70 |
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-RS0039-20 |
23 January 2020 |
22 July 2020 |
GCL |
For HKBCF Area |
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.
No exceedance of Action and Limit Levels
for 1-hour TSP and 24-hour TSP were recorded by the Environmental Team of
Contract No. HY/2012/08 during the reporting period.
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 February 2020 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 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 February 2020 are mainly associated with dust
and waste management issues.
This Twentieth Monthly EM&A
Report presents the findings of the EM&A activities undertaken during the
period from 1 to 31 January 2020, 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.
No exceedance of Action and Limit Levels
for 1-hour TSP and 24-hour TSP were recorded by the Environmental Team of
Contract No. HY/2012/08 during the reporting period.
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 January 2020. 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.