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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 Fourteenth Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 31 July
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;
·
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; 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 13 days
Joint Environmental Site Inspection 4 sessions
Summary of Breaches of Action/Limit Levels
Breaches of
Action and Limit Levels for Air Quality
Two (2) exceedances of Action Limit and one exceedance
of Limit Level 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 and Limit Levels for Landfill Gas Hazard Montioring
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 August 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;
·
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 at Satellite Control Building;
·
Building Structure at Kiosk
S1; and
·
Building
Structure at Toll Booth.
Future Key
Issues
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of August 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;
·
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; 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 its Corresponding Monitoring Requirements
Monitoring Station |
Monitoring Dates |
Location |
Description |
Parameters
& Frequency |
ASR1 |
1,
4, 7, 10, 13, 16, 19, 22, 25 and 28 July 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 |
Two (2) Action Level exceedances and one (1) Limit
Level exceedance of 1-hour TSP were recorded on 10 and 28 July 2019 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 13 days of landfill gas hazard
monitoring was conducted at Ventilation Plant Room during 17 to 31 July 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 |
0.03 |
0.03-0.04 |
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 5,
12, 19 and 26 July 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 |
5
July 2019 |
Toll
Control Building Waste should
be sorted for disposal. Chemical
container was observed without drip tray. |
Toll
Control Building The
Contractor was reminded to sort waste for disposal. The
Contractor was reminded to place chemical container in drip tray. |
12
July 2019 |
North
Ventilation Building Waste
should be sorted for disposal. |
North
Ventilation Building The
Contractor was reminded to sort waste for disposal. |
19
July 2019 |
North
Ventilation Building Accumulated
waste should be cleared and sorted for disposal. Tunnel Accumulated
waste should be cleared and sorted for disposal. |
North
Ventilation Building The
Contractor was reminded to clear accumulated waste and waste should be sorted
for disposal Tunnel The
Contractor was reminded to clear accumulated waste and waste should be sorted
for disposal |
26
July 2019 |
North
Ventilation Building Accumulated
waste should be cleared. |
North
Ventilation Building The
Contractor was reminded to clear accumulated waste. |
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) |
|||
|
|||||||||
July 2019 |
58 |
0 |
148,880 |
0 |
0 |
|
|
0 |
|
|
Notes: |
|
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|
(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. |
|
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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-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 |
Construction
Noise Permit |
GW-RS0340-19 |
18
April 2019 |
17
October 2019 |
GCL |
For
Kiosk S2 and SCB |
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.
Two (2) Action Level exceedances and one (1) Limit
Level exceedance of 1-hour TSP were recorded on 10 and 28 July 2019 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.
No exceedance of Action and Limit Levels for 24-hour
TSP was recorded in the reporting month.
No exceedance of Action and Limit Levels for methane,
oxygen and carbon dioxide was recorded during landfill gas hazard monitoring in
the reporting month.
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 August 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;
·
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 at Satellite Control Building;
·
Building Structure at Kiosk
S1; and
·
Building
Structure at Toll Booth.
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of July 2019 are
mainly associated with dust and waste management issues.
This Fourteenth Monthly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 1 to
31 July 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.
Two (2) exceedances of Action level and one (1)
exceedance 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 G. 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.
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 July 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.