table of Contents
Executive
Summary
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
2.1 Air quality
2.2 EM&A Site Inspection
2.3 Landfill Gas Hazard
Monitoring
2.4 Waste Management Status
2.5 Environmental Licenses and
Permits
2.6 Implementation Status of
Environmental Mitigation Measures
2.7 Summary of Exceedances of the
Environmental Quality Performance Limit
2.8 Summary of Complaints,
Notification of Summons and Successful Prosecutions
3.1 Construction Activities for
the Coming 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 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 Project 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 Seventh Monthly EM&A report presenting
the EM&A works carried out during the period from 1 to 31 December 2018 for
the Contract No. HY/2017/10 Northern Connection
Tunnel Buildings, Electrical and Mechanical Works
(the “Project”) 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
·
Bar bending, timber formwork and concreting at Toll
Control Building;
·
Electrical and Mechanical
Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works at Northern Ventilation Building;
·
Excavation at Administration Building;
·
Excavation at Maintenance Depot;
·
Socket H-piling at Fire Services Department Building;
and
·
Socket H-piling at Customs and Excise Department
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
Joint Environmental Site Inspection 4 sessions
Summary of Breaches of Action/Limit Levels
Breaches of
Action and Limit Levels for Air Quality
Three (3) Action Level exceedances for 1-hour TSP were
recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period.
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 January 2019 include the following:
Land-based Works
·
Bar bending, timber formwork and concreting at Toll
Control Building;
·
Electrical and Mechanical
Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works at Northern Ventilation Building;
·
Structure Building at Administration Building;
·
Structure Building at Maintenance Depot;
·
Socket H-piling at Fire Services Department Building;
and
·
Socket H-piling at Customs and Excise Department
Building.
Future Key
Issues
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of January 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
·
Bar bending, timber formwork and concreting at Toll
Control Building;
·
Electrical and Mechanical
Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works at Northern Ventilation Building;
·
Excavation at Administration Building;
·
Excavation at Maintenance Depot;
·
Socket H-piling at Fire Services Department Building;
and
·
Socket H-piling at Customs and Excise Department
Building.
The
locations of the construction activities are shown in Figure 1.3.
The Environmental Sensitive Receivers in the vicinity of the Project 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 |
3,
6, 9, 12, 15, 18, 21, 24, 27 and 30 December 2018 |
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 |
Three (3) Action Level exceedances for 1-hour TSP on
9, 12 and 18 December 2018 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
reports are 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.
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 7, 14, 21
and 28 December 2018.
Key observations and recommendations during the site
inspections in this reporting period are summarized in Table 2.2.
Table 2.2 Specific Observations and Recommendations during the Weekly
Site Inspection in this Reporting Month
Inspection Date |
Observations |
Recommendations/ Remarks |
7
December 2018 |
Fire
Services Department Building Accumulated
refuse in waste bin should be removed. Untreated
waste water should not be discharged directly into the sea. |
Fire
Services Department Building The
Contractor was reminded to remove accumulated refuse in waste bin. The
Contractor was reminded to remove the hose discharging untreated wastewater. |
14
December 2018 |
Toll
Control Building General
refuse in the drainage should be cleared. Fire
Services Department Building and Custom & Excise Department Building Decolorized
NRMM label should be replaced on the generator. |
Toll
Control Building The
Contractor was reminded to clear general refuse in the drainage. Fire
Services Department Building and Custom & Excise Department Building The
Contractor was reminded to replace decolorized NRMM label on the generator. |
21
December 2018 |
Fire
Services Department Building Chemical
containers should be placed in drip tray. North
Ventilation Building Accumulated
refuse should be cleared. |
Fire
Services Department Building The
Contractor was reminded to place chemical containers in drip tray. North
Ventilation Building The
Contractor was reminded to clear accumulated refuse. |
28
December 2018 |
Maintenance
Depot and Administration Building Soil
stockpiles was observed. |
Maintenance
Depot and Administration Building ·
The Contractor was reminded to cover soil stockpiles
by tarpaulin or apply water to the stockpile. |
The Contractor has rectified all of the observations
as identified during environmental site inspections in the reporting month.
No excavation work was conducted at the excavation
area in December 2018 and thus landfill gas hazard monitoring was temporarily
suspended in December 2018.
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 F). The quantities of different types of wastes
are summarized in Table 2.3.
Table 2.3 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) |
||
|
||||||||
December 2018 |
7,592 |
602 |
33,280 |
0 |
0 |
|
0 |
|
|
Notes: |
|
||||||
|
(a) Inert
construction wastes include hard rock and large broken concrete, and
materials 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 2.4 below.
Table 2.4 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 |
WPCO
Licence for Buildings at C2 area |
WT00031783-2018 |
22 October 2018 |
31
October 2023 |
GCL |
Sampling Frequency: Bimonthly |
WPCO
Licence for Buildings at C3 area |
WT00032062-2018 |
30 October 2018 |
31
October 2023 |
GCL |
Sampling Frequency: Quarterly |
Construction
Noise Permit |
GW-RW0451-18 |
2
November 2018 |
25
April 2019 |
GCL |
For
Toll Control Building, Administration Building, Maintenance Depot and WA18 |
Construction
Noise Permit |
GW-RW0560-18 |
28
December 2018 |
18
June 2019 |
GCL |
For
Toll Control Building, Administration Building, Maintenance Depot and WA18 |
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.
Three (3) Action Level exceedances for 1-hour TSP were
recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. The exceedances were considered not related
to this Contract upon further investigation and the investigation report is
presented in Appendix G. No action is required to be undertaken in
accordance with the Event Action Plan as presented in Appendix E. No exceedance of 24-hour TSP was recorded in
this reporting month.
Cumulative statistics are provided in Appendix G.
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 G.
As informed by the Contractor, the major works for the
Project in January 2019 will be:
·
Bar bending, timber formwork and concreting at Toll
Control Building;
·
Electrical and Mechanical
Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works at Northern Ventilation Building;
·
Structure building at Administration Building;
·
Structure building at Maintenance Depot; and
·
Socket H-piling at Fire Services Department Building
and Customs and Excise Department Building.
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of January 2019
are mainly associated with dust and waste management issues.
This Seventh Monthly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 1 to
31 December 2018, 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) was
carried out in this reporting month.
Three (3) Action Level exceedances for 1-hour TSP were
recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. The exceedances were considered not related
to this Contract upon further investigation and the investigation reports are
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.
Environmental site inspection was carried out four (4)
times in December 2018. 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.