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 E Event
Action Plan
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
eleventh Monthly EM&A report presenting the EM&A works carried out
during the period from 1 to 30 April 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;
·
Building Structure at Administration Building;
·
Building Structure at Maintenance Depot;
·
Building Structure at Fire Services Department
Building;
·
Building Structure at Customs and Excise Department
Building; and
·
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 Underpass at C3 area;
·
Electrical and Mechanical
Works at the Tunnel; and
·
Excavation and Building
Structure at Satellite Control 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 22 days
Joint
Environmental Site Inspection 4
sessions
Summary of
Breaches of Action/Limit Levels
Breaches of Action and Limit Levels for Air Quality
No exceedance of
1-hour TSP and 24-hour TSP Action and Limit Levels was recorded by the
Environmental Team of Contract No. HY/2012/08
during the reporting period.
Breaches of Action and Limit Levels for Landfill Gas
Hazard Monitoring
No exceedance of
Action and Limit Levels was recorded for landfill gas hazard monitoring in the
reporting month.
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 May 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;
·
Building Structure at Administration Building;
·
Building Structure 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; and
·
Electrical and Mechanical
Works at the Tunnel;
·
Electrical and Mechanical
Works and Architectural Builders Work and Finishes at underpass
at C3 area; and
·
Building
Structure at Satellite Control Building
Future Key Issues
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of May 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;
·
Building Structure at Administration Building;
·
Building Structure at Maintenance Depot;
·
Building Structure at Fire Services Department
Building;
·
Building Structure at Customs and Excise Department
Building; and
·
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 Underpass at C3 area;
·
Electrical and Mechanical
Works at the Tunnel; and
·
Excavation and Building
Structure at Satellite Control 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 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 April 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 |
No exceedance of
Action nor Limit Levels for 1-hour TSP and 24-hour TSP was 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 22 days of landfill gas hazard
monitoring was conducted at Ventilation Plant Room during 1 to 30 April 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.
No exceedance of Action and Limit Levels for methane,
oxygen and carbon dioxide was recorded in the reporting month.
Table
2.2 Summary of Landfill Gas Hazard Monitoring Results in the
Reporting Period
|
Average (%) |
Range (%) |
Action /
Limit Level (%) |
Methane |
0 |
0 |
10 /
20 |
Oxygen |
20.8 |
20.7-20.9 |
19 /
18 |
Carbon
Dioxide |
0.07 |
0.07-0.08 |
0.5
/ 1.5 |
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, four
(4) site inspections were carried out on 4, 12, 18, 26 April 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 |
4 April 2019 |
Toll Control
Building Different
types of waste should be sorted before disposal. Cement bags
should be tally covered by tarpaulin sheets. |
Toll Control
Building The Contractor
was reminded to sort different type of waste before disposal. The contractor
was reminded tally cover the cement bags with tarpaulin. |
12 April 2019 |
Fire Services
Department and Customs and Excise Department Building Damaged NRMM
label was observed on the vibratory roller. |
Fire Services
Department and Customs and Excise Department Building The Contractor
was reminded to replace the damamged NRMM label on the vibratory roller. |
18 April 2019 |
Tunnel The service
gallery of the tunnel is dusty. |
Tunnel The Contractor
was reminded to implement dust suppression measure to reduce dust generation. |
26 April 2019 |
No
observation. |
No
observation. |
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) |
|||
|
|||||||||
April 2019 |
13 |
0 |
56,730 |
0 |
0 |
|
|
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-RW0135-19 |
27
March 2019 |
30
September 2019 |
GCL |
For
Toll Control Building, Administration Building, Maintenance Depot, FSD,
C&ED, Bouundary Wall and WA18 |
Construction
Noise Permit |
GW-RS0340-19 |
18
April 2019 |
17
October 2019 |
GCL |
For
Kiosk S2 |
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 for
1-hour TSP and 24-hour TSP was 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 G. No action is required to be undertaken in accordance
with the Event Action Plan as presented in Appendix E.
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 May 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;
·
Building Structure at Administration Building;
·
Building Structure 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; and
·
Electrical and Mechanical
Works at the Tunnel;
·
Electrical and Mechanical
Works and
Architectural Builders Work and Finishes at underpass at C3 area;
and
·
Building
Structure at Satellite Control Building
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of May 2019 are mainly associated with dust and
waste management issues.
This Eleventh Monthly
EM&A Report presents the findings of the EM&A activities undertaken
during the period from 1 to 30 April 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) and landfill gas hazard monitoiring were carried
out in this reporting month.
No exceedance of
Action nor Limit Levels for 1-hour TSP and 24-hour TSP was 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.
No exceedance of
Action and Limit Levels was recorded for landfill gas hazard monitoring in the
reporting month.
Environmental
site inspection was carried out four (4) times in April 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.