TABLE OF CONTENTS
Executive Summary
1 Introduction
1.1 Background
1.2 Scope
of Report
1.3 Organization
Structure
1.4 Summary
of Construction Works
1.5 Summary
of EM&A Programme Requirements
2 EM&A
RESULTS
2.1 Air
Quality
2.2 Noise
Monitoring
2.3 Water
Quality Monitoring
2.4 Dolphin
Monitoring
2.5 EM&A
Site Inspection
2.6 Waste
Management Status
2.7 Environmental
Licenses and Permits
2.8 Implementation
Status of Environmental Mitigation Measures
2.9 Summary
of Exceedances of the Environmental Quality Performance Limit
2.10 Summary
of Complaints, Notification of Summons and Successful Prosecutions
3 Future
Key Issues
3.1 Construction
Activities for the Coming Quarter
3.2 Key
Issues for the Coming Quarter
3.3 Monitoring
Schedule for the Coming Quarter
4 Conclusions
and recommendations
4.1 Conclusions
List of Appendices
Appendix A Project Organization for Environmental Works
Appendix B Three Month Rolling Construction Programmes
Appendix C Implementation Schedule of Environmental Mitigation
Measures (EMIS)
Appendix D Summary of Action and Limit Levels
Appendix E EM&A Monitoring Schedules
Appendix F Impact Air Quality Monitoring Results and Graphical
Presentation
Appendix G Impact Noise Monitoring Results and Graphical
Presentation
Appendix H Impact Water Quality Monitoring Results and Graphical
Presentation
Appendix I Impact Dolphin Monitoring Survey Results
Appendix J Event Action Plan
Appendix K Quarterly Summary of Waste Flow Table
Appendix L Cumulative Statistics on Exceedances, Complaints,
Notif
Executive Summary
Under Contract No. HY/2012/07,
Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the
Southern Connection Viaduct Section of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM Asia Company Limited
was appointed by HyD as the Supervising Officer. 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
Environ Hong Kong Ltd. was employed by the HyD as the
Independent Environmental Checker (IEC) and Environmental Project Office (ENPO)
in accordance with Environmental Permit
No. EP-354/2009/A.
Further applications for variation of environmental permit (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 southern landfall of
TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong
Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by
Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and
EP-354/2009/D. Upon the
agreement and confirmation between the Supervising Officer Representatives and
Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of
the reclamation area for southern landfall under EP-353/2009/K and
EP-354/2009/D was handed-over to Contract
No. HY/2012/07. Another part of the southern landfall area
under EP-354/2009/D was handed-over
to Contract No. HY/2012/07 after
completion of reclamation works by Contract
No. HY/2010/02 in June 2016.
The
construction phase of the Contract commenced on 31 October 2013 and will be
tentatively completed by 2018. The
impact monitoring of the EM&A programme, including
air quality, noise, water quality and marine ecological monitoring as well as
environmental site inspections, commenced on 31 October 2013.
This
is the Fourteenth Quarterly EM&A Report presenting the EM&A works
carried out during the period from 1 March 2017 to 31 May 2017 for the Southern Connection Viaduct Section 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:
March
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
Land-based Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
April
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
May
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
A
summary of monitoring and audit activities conducted in the reporting period is
listed below:
24-hour TSP monitoring 18
sessions
1-hour TSP monitoring 18
sessions
Noise
monitoring 18
sessions
Water
quality monitoring 38
sessions
Dolphin
monitoring 6
sessions
Joint
Environmental site inspection 13
sessions
Breaches of Action and Limit Levels
for Air Quality
No
exceedance of Action and Limit Levels was recorded for air quality monitoring
in the reporting period.
Breaches of Action and Limit Levels
for Noise
No
exceedance of Action and Limit Levels was recorded for construction noise
monitoring in the reporting period.
Breaches of Action and Limit Levels
for Water Quality
No
exceedance of Action and Limit Levels was recorded for water quality monitoring
in the reporting period.
Impact Dolphin Monitoring
One (1) Limit
Level exceedance was observed for the quarterly dolphin monitoring data between
March and May 2017. No unacceptable
impact from the construction activities of the TM-CLKL Southern Connection
Viaduct Section on Indo-Pacific
humpback dolphin Sousa chinensis (i.e. Chinese White Dolphins) was noticeable from general
observations during the dolphin monitoring in this reporting quarter. The exceedance is considered unlikely due to
the works of this Project upon further investigation.
Daily marine mammal exclusion zone monitoring was undertaken during the
period of marine works under this Contract.
No Passive Acoustic
Monitoring (PAM) was implemented as the marine piling works were not carried
out outside the daylight hours in this reporting period. No sighting of the Chinese White Dolphin was
recorded in the monitoring period during the exclusion zone monitoring.
Environmental Complaints,
Non-compliance & Summons
There
were two (2) complaints received in the reporting period. One complaint was received from EPD on 28
March 2017 regarding noise nuisance and muddy
water from construction sites of Hong Kong Boundary Crossing Facilities of Hong
Kong-Zhuhai-Macao Bridge related Hong Kong projects in the reporting
period. Upon investigation, there is no evidence to
prove that the complaint case is related to this Contract. Another complaint was received from EPD on 31
May 2017 regarding construction dust nuisance
near site exit of Hong Kong Boundary Crossing Facilities of Hong
Kong-Zhuhai-Macao Bridge related Hong Kong projects in the reporting period. Enhanced measurement was undertaken by the
Contractor to mitigate dust emission.
There
was one (1) environmental case referred by Environmental Project Office (ENPO)
on 18 April 2017 regarding an enquiry from Environmental Protection Department
(EPD) related to suspected muddy water discharge from Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) reported in the
news on 17 April 2017. Upon
investigation, the environmental case is considered as an enquiry and no
complaint report would be included according to Environmental Complaint Handling
Procedure (Fig 2.5).
Reporting Change
There
was no reporting change in this reporting period.
Upcoming Works for the Next
Reporting Period
Works
to be undertaken in the coming quarter include the following:
June
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
·
Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
July 2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation;
·
Installation
of deck segment and pier head segment; and
·
Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
August
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Launching
gantry operation;
·
Installation
of deck segment and pier head segment; and
·
Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
Future Key Issues
Potential environmental impacts arising from the above
upcoming construction activities in the coming quarterly period are mainly
associated with air quality, noise, marine water quality, marine ecology and
waste management issue.
1
Introduction
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 (EP-354/2009A)
was issued on 8 December 2010. Further
applications for variation of environmental permit (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.
Under Contract No. HY/2012/07,
Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the
Southern Connection Viaduct Section of TM-CLKL (“the Contract”) while AECOM Asia Company Limited
was appointed by HyD as the Supervising Officer. 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
Environ Hong Kong Ltd. was employed by HyD as the
Independent Environmental Checker (IEC) and Environmental Project Office (ENPO)
in accordance with Environmental Permit
No. EP-354/2009/A.
The southern landfall of
TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong
Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by
Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and
EP-354/2009/D. Upon the
agreement and confirmation between the Supervising Officer Representatives and
Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of
the reclamation area for southern landfall under EP-353/2009/K and
EP-354/2009/D was handed-over to Contract
No. HY/2012/07. Another part of the southern landfall area
under EP-354/2009/D was handed-over
to Contract No. HY/2012/07 after
completion of reclamation works by Contract
No. HY/2010/02 in June 2016.
The construction phase of the
Contract commenced on 31 October 2013 and will be tentatively be completed by
2018. The impact monitoring phase of the
EM&A programme, including air quality, noise,
water quality and marine ecological monitoring as well environmental site
inspections, commenced on 31 October 2013.
The general layout plan of
the Contract components is presented in Figures 1.1 & 1.2a to l.
1.2
Scope of Report
This is the Fourteenth Quarterly EM&A Report under the Contract
No. HY/2012/07 Tuen Mun – Chek
Lap Kok Link – Southern Connection Viaduct Section. This
report presents a summary of the environmental monitoring and audit works from
1 March to 31 May 2017.
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
|
Stanley Chan
|
2762 3406
|
3188 6614
|
|
|
Senior Engineer
|
Steven Shum
|
2762 4133
|
3188 6614
|
|
SOR
(AECOM Asia Company Limited)
|
Chief Resident Engineer
|
Daniel Ip
|
3553 3800
|
2492 2057
|
|
|
Resident Engineer
|
Kingman Chan
|
3691 3950
|
3691 2899
|
|
ENPO / IEC
(Ramboll Environ 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)
|
Environmental Manager
|
Brian Kam
|
3520 0387
|
3520 0486
|
|
Environmental Officer
|
Roy Leung
|
3520 0387
|
3520 0486
|
|
|
24-hour Complaint Hotline
|
|
9738 4332
|
|
|
ET (ERM-HK)
|
ET Leader
|
Jovy Tam
|
2271 3113
|
2723 5660
|
The construction phase of the Contract commenced on
31 October 2013. The rolling construction programme
for the period of March to May 2017 is shown in Appendix
B.
As informed by the Contractor, details of the major works
carried out in this reporting period are listed below:
March
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
Land-based Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
April
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
May
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation; and
·
Installation
of deck segment and pier head segment.
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
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 Construction Activities in the Reporting Period
The environmental mitigation measures implementation
schedule is presented in Appendix C.
The
EM&A programme required environmental monitoring
for air quality, noise, water quality and marine ecology as well as
environmental site inspections for air quality, noise, water quality, waste
management, marine ecology and landscape and visual impacts. The EM&A requirements and related
findings for each component are described in the following sections, which
include:
·
Monitoring
parameters;
·
Monitoring
schedules for the reporting months and forthcoming months;
·
Action
and Limit levels for all environmental parameters;
·
Event
Action Plan;
·
Results
and observations;
·
Environmental
mitigation measures, as recommended in the approved EIA Report; and
·
Environmental
requirement in contract documents.
2
EM&A RESULTS
The
EM&A programme required environmental monitoring for
air quality, noise, water quality and marine ecology as well as environmental
site inspections for air quality, noise, water quality, waste management,
marine ecology and landscape and visual impacts. The EM&A requirements and related
findings for each component are summarized in the following sections.
The
baseline air quality monitoring undertaken by the HZMB Projects during October
2011 included the two monitoring stations ASR9A and ASR9C for this
Project. Thus, the baseline monitoring
results and Action/Limit Level presented in HZMB Baseline Monitoring Report () are adopted
for this Project.
2.1.1
Monitoring Requirements and Equipment
In
accordance with the Updated EM&A Manual, impact
1-hour TSP monitoring was conducted three (3) times every six (6) days while
the highest dust impact was expected.
Impact 24-hour TSP monitoring was carried out once every six (6) days. The Action and Limit Levels of the air
quality monitoring is provided in Appendix D.
1-hour TSP and 24-hour TSP monitoring were
conducted at 2 alternative air quality monitoring stations, ASR8A (Area 4) and
ASR9 (entrance of MTR Depot) during the reporting period in accordance with the
requirement of the Updated EM&A Manual.
The monitoring stations are indicated in Figure 2.1
and details are presented in Table 2.1.
High Volume Samplers (HVSs) were used for carrying
out 1-hour and 24-hour TSP monitoring during the reporting period. The HVSs meets all requirements of the
Updated EM&A Manual. Brand and model
of the equipment are given in Table 2.2.
Wind
data monitoring equipment was installed at Area 4 during the reporting period
for logging wind speed and wind direction.
The wind sensor was setup such that it was clear of obstructions or
turbulence caused by building. The wind
data monitoring equipment is recalibrated at least once every six months.
Table
2.1 Locations of Impact Air Quality
Monitoring Stations and Monitoring Dates in this Reporting Period
|
Monitoring
Station (1)
|
Monitoring
Period
|
Location
|
Description
|
Parameters
& Frequency
|
|
ASR8A
|
1, 7, 13, 16, 22 and 28 March 2017
3, 6, 12, 18, 24 and 27 April 2017
2, 6, 12, 18, 24 and 27 May 2017
|
Area 4
|
On ground at the works area, Area 4
|
Ÿ
1-hour Total Suspended Particulates
(1-hour TSP, µg/m3), 3 times per day every 6 days
Ÿ 24-hour Total
Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour
every 6 days
|
|
ASR9
|
MTR Depot
|
On the ground nearby MTR Depot
entrance
|
Note:
(1) Air
Quality Monitoring Stations ASR9A and ASR9C at Siu Ho Wan MTRC Depot proposed
in accordance with the Updated EM&A were relocated to ASR9 and ASR8A
respectively.
Table
2.2 Air Quality
Monitoring Equipment
|
Equipment
|
Brand and Model
|
|
High
Volume Sampler
(1-hour TSP and 24-hour TSP)
|
Tisch Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170)
|
|
Wind
Sensor
|
Global
Water (Wind Speed Sensor: WE550; Wind Direction Sensor: WE570)
|
|
Wind
Anemometer for calibration
|
Lutron
(Model No. AM-4201)
|
2.1.2
Action & Limit Levels
The
Action and Limit Levels of the air quality monitoring are provided in Appendix D. The Event and Action plan is presented in Appendix J.
2.1.3
Monitoring Schedule for the Reporting Quarter
The
schedules for air quality monitoring in the reporting quarter are provided in Appendix E.
2.1.4
Results and Observations
The
monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables 2.3 and 2.4, respectively.
Monitoring results are presented graphically in Appendix F. Detailed impact
air quality monitoring results and meteorological information were reported in
the Forty-first to Forty-third Monthly EM&A Reports.
Table
2.3 Summary of 1-hour TSP Monitoring Results
in this Reporting Period
|
Month
|
Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level
(µg/m3)
|
Limit Level
(µg/m3)
|
|
March 2017
|
ASR 8A
|
86
|
35-176
|
394
|
500
|
|
ASR 9
|
123
|
41-225
|
393
|
500
|
|
April 2017
|
ASR 8A
|
90
|
59-115
|
394
|
500
|
|
ASR 9
|
141
|
50-231
|
393
|
500
|
|
May 2017
|
ASR 8A
|
91
|
50-200
|
394
|
500
|
|
ASR 9
|
131
|
66-263
|
393
|
500
|
Table
2.4 Summary of 24-hour TSP Monitoring
Results in this Reporting Period
|
Month
|
Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level
(µg/m3)
|
Limit Level
(µg/m3)
|
|
March 2017
|
ASR 8A
|
58
|
45-75
|
178
|
260
|
|
ASR 9
|
67
|
51-83
|
178
|
260
|
|
April 2017
|
ASR 8A
|
51
|
42-62
|
178
|
260
|
|
ASR 9
|
65
|
50-74
|
178
|
260
|
|
May 2017
|
ASR 8A
|
47
|
39-65
|
178
|
260
|
|
ASR 9
|
59
|
48-67
|
178
|
260
|
The
major dust sources in the reporting period include construction activities under
the Contract as well as nearby traffic emissions.
In
this reporting period, a total of 18 monitoring events were undertaken within
the reporting period, in which no Action or Limit Level exceedance for 1-hour
and 24-hour TSP for air quality was recorded during the reporting period.
The
baseline noise monitoring undertaken by the HZMB Projects during the period of
18 October to 1 November 2011 included the monitoring station NSR1 for this
Project. Thus, the baseline monitoring
results and Action/ Limit Level presented in HZMB Baseline Monitoring Report ()
are adopted for this Project.
2.2.1
Monitoring Requirements and Equipment
In
accordance with the Updated EM&A Manual, impact noise monitoring should be
conducted once per week during the construction phase of the Contract.
Noise
monitoring was conducted at the alternative noise monitoring station, NSR1A
(Pak Mong Village Pavilion) during the reporting
period in accordance with the requirement of Updated EM&A Manual. Figure 2.2 shows the
location of the monitoring station. Table 2.5 describes the details of the
monitoring station.
Noise
monitoring was performed using sound level meter at the designated monitoring
station in the reporting quarter. The deployed
sound level meter complies with the International Electrotechnical
Commission Publications (IEC) 651:1979 (Type 1) and 804:1985 (Type 1)
specifications. Acoustic calibrator was
deployed to check the sound level meter at a known sound pressure level. Brand and model of the
equipment is given in Table 2.6.
Table
2.5 Location of Impact Noise
Monitoring Station and Monitoring Dates in this Reporting Period
|
Monitoring
Station
|
Monitoring
Period
|
Location
|
Parameters
& Frequency
|
|
NSR1A
|
1, 7, 13, 16, 22 and 28 March 2017
3, 6, 12, 18, 24 and 27 April 2017
2, 6, 12, 18, 24 and 27 May 2017
|
Pak Mong
Village Pavilion
|
Ÿ
30-mins
measurement at each monitoring station between 0700 and 1900 on normal
weekdays (Monday to Saturday). Leq, L10
and L90 would be recorded.
Ÿ
At
least once a week
|
|
Note:
(1) Noise Monitoring Station NSR1 at Pak Mong Village proposed in accordance with the Updated
EM&A was relocated to NSR1A.
|
Table
2.6 Noise Monitoring Equipment
|
Equipment
|
Brand and
Model
|
|
Integrated Sound Level Meter
|
Rion NL-31
|
|
Acoustic Calibrator
|
Rion NC-73
|
2.2.2
Action and Limit Levels
The
Action and Limit levels of the noise monitoring are provided in Appendix D. The Event and Action plan is presented in Appendix J.
2.2.3
Monitoring Schedule for the Reporting Quarter
The
schedule for construction noise monitoring in the reporting period is provided
in Appendix F.
2.2.4
Results and Observations
The
monitoring results for noise monitoring are summarized in Table 2.7. Monitoring results
are presented graphically in Appendix G and
detailed impact noise monitoring results are reported in the Forty-first to Forty-third Monthly EM&A Reports.
Table
2.7 Summary of Construction Noise
Monitoring Results at NSR1A in the Reporting Period
|
Month
|
Average , dB(A), Leq
(30mins)
|
Range, dB(A), Leq
(30mins)
|
Limit Level, dB(A), Leq
(30mins)
|
|
March 2017
|
61
|
61-62
|
75
|
|
April 2017
|
61
|
60-62
|
75
|
|
May 2017
|
61
|
60-63
|
75
|
A total of 18 monitoring
events were undertaken in the reporting period with no Action Level and Limit
Level exceedance recorded at the monitoring station in the reporting
period. No action is thus required to be
undertaken in accordance with the Event Action Plan presented in Appendix J.
Major noise sources during
the noise monitoring included construction activities, nearby traffic noise and
aircraft noise.
The
baseline water quality monitoring undertaken by the HZMB Projects between 6 and
31 October 2011 included all monitoring stations except SR4a for the
Project. Thus, the baseline monitoring
results except for station SR4a and Action/Limit Level presented in HZMB Baseline
Monitoring Report ()
are adopted for this Project. Baseline
water quality monitoring was conducted at station SR4a from 29 August to 24
September 2013.
2.3.1
Monitoring Requirements and Equipment
Impact
water quality monitoring was carried out to ensure that any deterioration of
water quality was detected, and that timely action was taken to rectify the
situation. Impact water quality
monitoring was undertaken three days per week during the construction period at
seven water quality monitoring stations in accordance with the Updated EM&A
Manual.
Due
to Three-Runway System (3RS) marine construction works, an alternative water
quality control station CS(Mf)3(N) was proposed to
replace control station CS(Mf)3. The Proposal of Alternative Water Quality
Monitoring Station () was submitted to EPD on 31 March 2017
and granted on 6 April 2017. Water quality monitoring at CS(Mf)3(N)
is undertaken since 2 May 2017. The
locations of the monitoring stations under the Contract are shown in Figure 2.3 and Table
2.8.
Table
2.8 Locations of Water Quality Monitoring
Stations and the Corresponding Monitoring Requirements
|
Station ID
|
Type
|
Coordinates
|
*Parameters, unit
|
Depth
|
Frequency
|
|
|
|
Easting
|
Northing
|
|
|
|
|
IS(Mf)9
|
Impact Station (Close to HKBCF construction site)
|
813273
|
818850
|
Ÿ Temperature(°C)
Ÿ pH(pH unit)
Ÿ Turbidity (NTU)
Ÿ Water depth (m)
Ÿ Salinity (ppt)
Ÿ Dissolved Oxygen
(DO) (mg/L and % of
saturation)
·
Suspended Solid (SS) (mg/L)
|
3 water depths: 1m
below sea surface,
mid-depth and 1m
above sea bed. If the water depth is less than 3m,
mid-depth sampling only. If water
depth less than 6m, mid-depth may be omitted.
|
Impact monitoring: 3 days
per week, at mid-flood and mid-ebb tides during the construction period of the
Contract.
|
|
IS(Mf)16
|
Impact
Station (Close to HKBCF construction site)
|
814328
|
819497
|
|
IS8
|
Impact
Station(Close to HKBCF construction site)
|
814251
|
818412
|
|
SR4
|
Sensitive
receiver (Tai Ho Inlet)
|
814760
|
817867
|
|
SR4a
|
Sensitive
receiver
|
815247
|
818067
|
|
CS(Mf)3
|
Control Station
|
809989
|
821117
|
|
CS(Mf)3(N)
|
Control Station
|
808814
|
822355
|
|
CS(Mf)5
|
Control Station
|
817990
|
821129
|
|
Notes:
In addition to the parameters presented
monitoring location/position, time, water depth, sampling depth, tidal
stages, weather conditions and any special phenomena or works underway nearby
were also recorded.
Water
Quality Monitoring Station CS(Mf)3 was relocated to
CS(Mf)3(N) since 2 May 2017.
|
Table 2.9 summarizes
the equipment used in the impact water quality monitoring programme.
Table
2.9 Water Quality Monitoring
Equipment
|
Equipment
|
Brand and Model
|
|
DO, Temperature meter and Salinity
|
YSI Pro2030
|
|
Turbidity meter
|
HACH Model 2100Q
|
|
pH meter
|
HANNA HI8314 / HANNA HI9125
|
|
Positioning Equipment
|
Koden913MK2 with KBG-3 DGPS antenna
|
|
Water Depth Detector
|
Speedtech Instrument SM-5
|
|
Water Sampler
|
Kemmerer 1520 (1520-C25)
2.2L with messenger
|
2.3.2
Action & Limit Levels
The
Action and Limit Levels of the water quality monitoring are provided in Appendix D.
2.3.3
Monitoring Schedule for the Reporting Quarter
The
schedules for water quality monitoring in the reporting quarter are provided in
Appendix E. Water quality monitoring was cancelled on 4
April 2017 due to suspension of marine works during holiday.
2.3.4
Results and Observations
Impact
water quality monitoring was conducted at all designated monitoring stations in
the reporting period. Monitoring results
are presented graphically in Appendix H
and detailed impact water quality monitoring results were reported in the Forty-first to Forty-third Monthly EM&A Reports.
In
this reporting period, a total of 38 monitoring events were undertaken with no
Action Level and Limit Level exceedance recorded at the monitoring station in
the reporting period. No action is thus
required to be undertaken in accordance with the Event Action Plan presented in
Appendix J.
2.4.1
Monitoring Requirements
Impact
dolphin monitoring is required to be conducted by a qualified dolphin
specialist team to evaluate whether there have been any effects on the
Indo-Pacific humpback dolphin Sousa chinensis (i.e.
Chinese White Dolphin) from the Contract.
In order to fulfil the EM&A requirements and make good use of
available resources, the on-going impact line transect dolphin monitoring data
collected by HyD’s Contract No. HY/2011/03
Hong Kong-Zhuhai-Macao Bridge. Hong Kong Link Road - Section between
Scenic Hill and Hong Kong Boundary Crossing Facilities on the monthly basis
is adopted to avoid duplicates of survey effort.
2.4.2
Monitoring Equipment
Table 2.10 summarizes the equipment used for the
impact dolphin monitoring.
Table
2.10 Dolphin Monitoring Equipment
|
Equipment
|
Model
|
|
Global Positioning System (GPS)
Camera
Laser Binoculars
Marine Binocular
Vessel for Monitoring
|
Garmin 18X-PC
Geo One Phottix
Nikon D90 300m
2.8D fixed focus
Nikon D90
20-300m zoom lens
Infinitor LRF 1000
Bushell 7 x 50 marine binocular with compass
and reticules
65 foot single
engine motor vessel with viewing platform 4.5m above water level
|
2.4.3
Monitoring Parameter, Frequencies & Duration
Dolphin
monitoring should cover all transect lines in Northeast Lantau (NEL) and the
Northwest Lantau (NWL) survey areas twice per month throughout the entire
construction period. The monitoring data
should be compatible with, and should be made available for, long-term studies
of small cetacean ecology in Hong Kong.
In order to provide a suitable long-term dataset for comparison,
identical methodology and line transects employed in baseline dolphin
monitoring was followed in the impact dolphin monitoring.
2.4.4
Monitoring Location
The
impact dolphin monitoring was carried out in the NEL and NWL along the line
transect as depicted in Figure 2.4. The co-ordinates of all transect lines are
shown in Table 2.11 below.
Table
2.11 Impact Dolphin Monitoring Line Transect
Co-ordinates
|
Line No.
|
Easting
|
Northing
|
Line No.
|
Easting
|
Northing
|
|
1
|
Start Point
|
804671
|
815456
|
13
|
Start Point
|
816506
|
819480
|
|
1
|
End Point
|
804671
|
831404
|
13
|
End Point
|
816506
|
824859
|
|
2
|
Start Point
|
805475
|
815913
|
14
|
Start Point
|
817537
|
820220
|
|
2
|
End Point
|
805477
|
826654
|
14
|
End Point
|
817537
|
824613
|
|
3
|
Start Point
|
806464
|
819435
|
15
|
Start Point
|
818568
|
820735
|
|
3
|
End Point
|
806464
|
822911
|
15
|
End Point
|
818568
|
824433
|
|
4
|
Start Point
|
807518
|
819771
|
16
|
Start Point
|
819532
|
821420
|
|
4
|
End Point
|
807518
|
829230
|
16
|
End Point
|
819532
|
824209
|
|
5
|
Start Point
|
808504
|
820220
|
17
|
Start Point
|
820451
|
822125
|
|
5
|
End Point
|
808504
|
828602
|
17
|
End Point
|
820451
|
823671
|
|
6
|
Start Point
|
809490
|
820466
|
18
|
Start Point
|
821504
|
822371
|
|
6
|
End Point
|
809490
|
825352
|
18
|
End Point
|
821504
|
823761
|
|
7
|
Start Point
|
810499
|
820880
|
19
|
Start Point
|
822513
|
823268
|
|
7
|
End Point
|
810499
|
824613
|
19
|
End Point
|
822513
|
824321
|
|
8
|
Start Point
|
811508
|
821123
|
20
|
Start Point
|
823477
|
823402
|
|
8
|
End Point
|
811508
|
824254
|
20
|
End Point
|
823477
|
824613
|
|
9
|
Start Point
|
812516
|
821303
|
21
|
Start Point
|
805476
|
827081
|
|
9
|
End Point
|
812516
|
824254
|
21
|
End Point
|
805476
|
830562
|
|
10
|
Start Point
|
813525
|
820872
|
22
|
Start Point
|
806464
|
824033
|
|
10
|
End Point
|
813525
|
824657
|
22
|
End Point
|
806464
|
829598
|
|
11
|
Start Point
|
814556
|
818853
|
23
|
Start Point
|
814559
|
821739
|
|
11
|
End Point
|
814556
|
820992
|
23
|
End Point
|
814559
|
824768
|
|
12
|
Start Point
|
815542
|
818807
|
|
|
|
|
|
12
|
End Point
|
815542
|
824882
|
|
|
|
|
2.4.5
Action & Limit Levels
The
Action and Limit levels of dolphin impact monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix J.
2.4.6
Monitoring Schedule for the Reporting Period
The
dolphin monitoring schedules for the reporting period are shown in Appendix E.
2.4.7
Results & Observations
A
total of 830.17 km of survey effort was collected, with 93.4% of the total
survey effort being conducted under favourable
weather conditions (i.e. Beaufort Sea State 3 or below with good
visibility). Among the two areas, 333.83 km and 496.34
km of survey effort were conducted in NEL and NWL survey areas
respectively. The total survey effort
conducted on primary lines was 583.29 km, while the effort on
secondary lines was 264.88 km. Survey effort conducted on both primary and
secondary lines were considered as on-effort survey data. The survey efforts are summarized in Appendix I.
During
the six sets of monitoring surveys in March to May 2017, a
total of four (4) groups of 24 Chinese White Dolphins were sighted. All dolphin sightings were made during
on-effort, while three of the four on-effort dolphin sightings were made on
primary lines. In this quarterly period,
all dolphin groups were sighted in NWL, no sighting of dolphin was sighted in
NEL. Summary table of the dolphin
sightings is shown in Appendix II of
Appendix I.
Encounter
rates of Chinese White Dolphins deduced from the survey effort and on-effort
sighting data from the primary transect lines under favourable
conditions (Beaufort 3 or below) in the reporting period with the results
presented in Tables 2.12 and 2.13.
Table
2.12 Individual Survey Event
Encounter Rates
|
Survey Area
|
Survey
period
|
Encounter rate (STG) (no. of
on-effort dolphin sightings per 100 km of survey effort)
|
Encounter rate (ANI) (no. of
dolphins from all on-effort sightings per 100 km of survey effort)
|
|
Primary Lines Only
|
Primary Lines Only
|
|
NEL
|
Set 1: 2nd/ 7th
Mar 2017
|
0.0
|
0.0
|
|
Set 2: 16th / 28th
Mar 2017
|
0.0
|
0.0
|
|
Set 3: 12th /20th
Apr 2017
|
0.0
|
0.0
|
|
Set 4: 24th / 26th
Apr 2017
|
0.0
|
0.0
|
|
Set 5: 18th / 22nd
May 2017
|
0.0
|
0.0
|
|
Set 6: 24th /26th
May 2017
|
0.0
|
0.0
|
|
NWL
|
Set 1: 2nd/ 7th
Mar 2017
|
0.00
|
0.00
|
|
Set 2: 16th / 28th
Mar 2017
|
2.03
|
24.37
|
|
Set 3: 12th /20th
Apr 2017
|
1.71
|
3.41
|
|
Set 4: 24th / 26th
Apr 2017
|
0.00
|
0.00
|
|
Set 5: 18th / 22nd
May 2017
|
1.85
|
3.70
|
|
Set 6: 24th /26th
May 2017
|
0.00
|
0.00
|
Note: Dolphin Encounter Rates are deduced from the
six sets of surveys (two surveys in each set) in the reporting period in
Northeast (NEL) and Northwest Lantau (NWL)
Table
2.13 Quarterly Average Encounter
Rates
|
Survey
Area
|
Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of
survey effort)
|
Encounter rate (ANI) (no. of dolphins from all on-effort sightings per
100 km of survey effort)
|
|
March – May 2017
|
September -November 2011
|
March – May 2017
|
September -November 2011
|
|
Northeast
Lantau
|
0.0
|
6.00 ± 5.05
|
0.0
|
22.19 ± 26.81
|
|
Northwest
Lantau
|
0.93 ± 1.03
|
9.85 ± 5.85
|
5.25 ± 9.53
|
44.66 ± 29.85
|
Note:
encounter rates deduced from the baseline monitoring period (September –
November 2011) have been recalculated based only on survey effort and on-effort
sighting data made along the primary transect lines under favourable
conditions
Group
size of Chinese White Dolphins ranged from one (1) to twelve (12) individuals per group in North Lantau region during March to
May 2017. The average dolphin group sizes from these
three months were compared with the ones deduced from the baseline period in
September to November 2011, as shown in Table
2.14.
Table
2.14 Comparison of Quarterly Average
Group Sizes
|
|
Average Dolphin Group Size
|
|
March – May 2017
|
September - November 2011
|
|
Overall
|
6.00 ± 4.90 (n = 4)
|
3.72 ± 3.13 (n = 66)
|
|
Northeast Lantau
|
---
|
3.18 ± 2.16 (n = 17)
|
|
Northwest Lantau
|
6.00 ± 4.90 (n = 4)
|
3.92 ± 3.40 (n = 49)
|
One
(1) Limit Level exceedance was observed for the quarterly dolphin monitoring
data between March and May 2017.
During
this quarter of dolphin monitoring, no unacceptable impact from the activities
of this Contract on Chinese White Dolphins was noticeable from the general
observations.
Although
the dolphins infrequently occurred along the alignment of TM-CLKL Southern Connection
Viaduct in the past and during the baseline monitoring period, it is apparent
that dolphin usage has been significantly reduced in both NEL and NWL, and many
individuals have shifted away from the important habitat around the Brothers
Islands.
It
is critical to monitor the dolphin usage in North Lantau region in the upcoming
quarters, to determine whether the dolphins are continuously affected by the
various construction activities in relation to the HZMB-related works, and
whether suitable mitigation measure can be applied to revert the situation.
2.4.8
Marine Mammal Exclusion Zone Monitoring
Daily marine mammal exclusion zone
monitoring was undertaken during the period of marine works under this
Contract. No sighting of Chinese White
Dolphin was recorded in the monitoring period during the exclusion zone
monitoring.
Passive Acoustic
Monitoring (PAM) was decommissioned in this reporting period as
no marine piling works was carried out outside the daylight hours since
September 2015. Daytime marine mammal exclusion
zone was still in effect to cater for temporary staging installation and
uninstallation works.
2.5
EM&A Site
Inspection
Site
inspections were carried out on a weekly basis to monitor the implementation of
proper environmental pollution control and mitigation measures under the
Contract. Thirteenth (13) site
inspections were carried out in the reporting quarter on 8,
15, 22 and 30 March 2017,
5, 12, 19 and 27 April 2017, 4, 11, 16, 26 and 31 May 2017.
Key
observations during the site inspections in this reporting period are
summarized in Table 2.15.
Table
2.15 Specific Observations Identified during
the Weekly Site Inspection in this Reporting Period
|
Inspection
Date
|
Location
& Environmental Observations
|
Recommendations/
Remarks
|
|
8 March 2017
|
Viaduct B (B17)
Ÿ
Chemical containers were not placed in drip tray.
Ÿ
Chemical containers nearby the generator were not placed in drip tray.
Viaduct C (C16)
Ÿ
NRMM label should be displayed clearly on generator.
|
Viaduct B (B17)
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
Ÿ
The Contractor was reminded to remove the chemical containers
nearby the generator and placed them in drip tray.
Viaduct C (C16)
Ÿ
The Contractor was reminded to display NRMM label clearly on generator.
|
|
15 March 2017
|
Viaduct E (Pier E5)
Ÿ
Chemical containers were not placed in drip tray.
Ÿ
Portable
toilet should be maintained in a tidy state.
Ÿ Better housekeeping
should be maintained.
|
Viaduct E (Pier E5)
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
Ÿ
The Contractor was reminded to keep portable toilet clean.
Ÿ
The Contractor was reminded to keep better housekeeping
at site.
|
|
22 March 2017
|
Viaduct B (Ramp B)(Area A)
Ÿ
Wetsep checklist should be
displayed.
Ÿ
NRMM label should be displayed clearly on excavator.
Viaduct C (Pier C17)
Ÿ
Watering
should be maintained on exposed area for dust suppression.
|
Viaduct B (Ramp B)(Area A)
Ÿ
The
Contractor was reminded to display wetsep
checklist.
Ÿ
The Contractor was reminded to display NRMM label clearly on excavator.
Viaduct C (Pier C17)
Ÿ
The
Contractor was reminded to maintain watering on exposed area.
|
|
30 March 2017
|
Viaduct E
(Pier E10)
Ÿ
Drainage gutter on the temporary platform should be maintained in a
good condition to prevent direct discharge to marine waters.
Ÿ
The site should be kept tidy and litter should be cleared on a regular
basis.
Viaduct B
(Pier B15)
Ÿ General
refuse should be cleared.
Viaduct B
(Pier B16)
Ÿ Exposed
slope was observed not fully covered by tarpaulin.
|
Viaduct E
(Pier E10)
Ÿ
The Contractor was reminded to replace the broken gutter.
Ÿ
The Contractor was reminded to clear general refuse at site.
Viaduct B
(Pier B15)
Ÿ
The Contractor was reminded to clear general refuse at site.
Viaduct B
(Pier B16)
Ÿ
The Contractor was reminded to fully cover the exposed slope.
|
|
5 April 2017
|
Southern Landfall (Portion A)
(Portion S-c)
Ÿ
Retained
water inside drip tray should be cleared.
Ÿ
Chemical containers were observed not placed in drip tray.
Ÿ
Watering
should be maintained on unpaved road for dust suppression.
Ÿ
Soil
bund was observed not properly maintained.
|
Southern Landfall (Portion A)
(Portion S-c)
Ÿ
The Contractor was reminded to clear retained water inside drip
tray.
Ÿ
The Contractor was reminded to place chemical containers in drip
tray.
Ÿ
The
Contractor was reminded to maintain watering on unpaved road.
Ÿ The Contractor was
reminded to properly maintain soil bund to avoid surface runoff.
|
|
12 April 2017
|
Viaduct D (Pier D12)
Ÿ
Chemical containers were observed not placed in drip tray.
Viaduct D (Pier D18)
Ÿ
Drip
tray was observed not properly plugged.
Ramp D (Area I)
Ÿ
Chemical containers were observed not placed in drip tray.
|
Viaduct D (Pier D12)
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
Viaduct D (Pier D18)
Ÿ
The Contractor was reminded to properly plug the drip tray.
Ramp D (Area I)
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
|
|
19 April 2017
|
Viaduct E (Pier E8)
Ÿ
Retained
water inside drip tray should be cleared.
Ÿ
NRMM label should be displayed clearly on generator.
Ÿ
Chemical containers were observed not placed in drip tray.
Viaduct E (Pier E10)
Ÿ
General
refuse should be cleared from site.
Ÿ
Chemical containers were observed not placed in drip tray.
|
Viaduct E (Pier E8)
Ÿ
The Contractor was reminded to clear retained water inside drip
tray.
Ÿ
The Contractor was reminded to display NRMM label clearly on generator
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
Viaduct E (Pier E10)
Ÿ
The
Contractor was reminded to clear general refuse at site.
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
|
|
27 April 2017
|
Viaduct E
(Pier E9)
Ÿ
Chemical containers were observed not placed in drip tray.
Ÿ
Retained
water inside drip tray should be cleared.
Viaduct C
(Pier C11)
Ÿ Sand bunds should be
provided to prevent surface runoff.
|
Viaduct E
(Pier E9)
Ÿ
The Contractor was reminded to remove the chemical containers and
placed them in drip tray.
Ÿ
The Contractor was reminded to clear retained water inside drip tray.
Viaduct C
(Pier C11)
Ÿ The Contractor was
reminded to provide sand bunds to prevent surface runoff.
|
|
4 May 2017
|
Viaduct C (Pier C16)
Ÿ
Chemical containers were observed not placed in drip tray.
Ramp C (Area I)
Ÿ
Accumulated general refuse should be cleared regularly.
Ÿ Chemical containers were observed not placed in
drip tray.
|
Viaduct C (Pier C16)
Ÿ
The Contractor was reminded to place chemical containers in drip tray.
Ramp C (Area I)
Ÿ
The Contractor was reminded to clear accumulated general refuse.
Ÿ The Contractor was reminded to place chemical containers in drip tray.
|
|
11 May 2017
|
Southern Landfall Portion A (Portion
S-c)
Ÿ
General refuse should be cleared.
Ÿ
Watering should be maintained regularly on unpaved road.
|
Southern Landfall Portion A (Portion
S-c)
Ÿ
The Contractor was reminded to clear accumulated general refuse.
Ÿ
The Contractor was reminded to maintain watering regularly on
unpaved road.
|
|
16 May 2017
|
Viaduct C (Pier C11)
Ÿ
NRMM label should be displayed clearly on the excavator.
Ÿ
Sand bund should be provided to avoid surface runoff.
|
Viaduct C (Pier C11)
Ÿ
The Contractor was reminded to provide a clear NRMM label on the
excavator.
Ÿ
The Contractor was reminded to provide sand bund to avoid surface
runoff.
|
|
26 May 2017
|
Viaduct E
(Pier E3)
Ÿ
Chemical containers were observed not placed in drip tray.
Ÿ
Better housekeeping should be maintained.
Ÿ
Stagnant
water inside drip tray should be cleared.
Viaduct B
(Pier B15)
Ÿ
Accumulated general refuse should be cleared regularly.
|
Viaduct E
(Pier E3)
Ÿ
The Contractor was reminded to place chemical containers in drip tray.
Ÿ
The Contractor was reminded to keep better housekeeping.
Ÿ
The
Contractor was reminded to clear stagnant water inside drip tray.
Viaduct B
(Pier B15)
Ÿ
The Contractor was reminded to clear accumulated general refuse.
|
|
31 May 2017
|
Viaduct E
(Pier E10)
Ÿ
Stagnant
water inside drip tray should be cleared.
Ÿ
Chemical containers were observed not placed in drip tray.
Viaduct E
(Pier E11)
Ÿ
Chemical containers were observed not placed in drip tray.
Ÿ Better housekeeping should be maintained.
|
Viaduct E
(Pier E10)
Ÿ
The
Contractor was reminded to clear stagnant water inside drip tray.
Ÿ
The Contractor was reminded to place chemical containers in drip tray.
Viaduct E
(Pier E11)
Ÿ
The Contractor was reminded to place chemical containers in drip tray.
Ÿ The Contractor was reminded to keep better
housekeeping.
|
The Contractor has rectified
all of the observations identified during environmental site inspections in the
reporting period.
2.6
Waste Management Status
The Contractor has 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 include mainly construction wastes
(inert and non-inert), recyclable materials, chemical waste and marine
sediment. Reference has been made to the
waste flow table prepared by the Contractor (Appendix K). The quantities
of different types of wastes are summarized in Table 2.16.
Table
2.16 Quantities of Different Waste Generated in
the Reporting Period
|
Month / Year
|
Inert Construction Waste (a) (m3)
|
Imported Fill (m3)
|
Inert Construction Waste Re-used
(m3)
|
Non-inert Construction Waste (b) (kg)
|
Recyclable Materials (c) (kg)
|
Chemical Wastes (kg)
|
Marine Sediment (m3)
|
|
Category L
|
Category M
|
|
March 2017
|
6,077
|
0
|
498
|
87,910
|
77
|
6,000
|
0
|
0
|
|
|
April 2017
|
4,409
|
0
|
1058
|
130,680
|
5,233
|
0
|
0
|
0
|
|
|
May 2017
|
4,134
|
0
|
826
|
171,870
|
56
|
0
|
0
|
0
|
|
|
Total
|
14,620
|
0
|
2,382
|
390,460
|
5,366
|
6,000
|
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.
2.7
Environmental Licenses
and Permits
The
status of environmental licensing and permit is summarized in Table 2.17 below.
Table
2.17 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-353/2009/K
|
11-Apr-16
|
N/A
|
HyD
|
Hong Kong Boundary Crossing
Facilities
|
|
Environmental Permit
|
EP-354/2009/D
|
13-Mar-15
|
N/A
|
HyD
|
Tuen Mun-
Chek Lap Kok Link
|
|
Construction Dust Notification
|
361571
|
05-Jul-13
|
N/A
|
GCL
|
|
|
Construction Dust Notification
|
362093
|
17-Jul-13
|
N/A
|
GCL
|
For Area 23
|
|
Chemical Waste Registration
|
5213-951-G2380-17
|
12-Jun-14
|
N/A
|
GCL
|
Viaducts A, B, C, D & E
|
|
Chemical Waste Registration
|
5213-961-G2380-13
|
10-Oct-13
|
N/A
|
GCL
|
Chemical waste produced in
Contract No. HY/2012/07 (Area 1
adjacent to Cheng Tung Road, Siu Ho Wan)
|
|
Chemical Waste Registration
|
5213-961-G2380-14
|
10-Oct-13
|
N/A
|
GCL
|
Chemical waste produced in
Contract No. HY/2012/07 (Area 2
adjacent to Cheung Tung Road, Pak Mong Village)
|
|
Chemical Waste Registration
|
5213-974-G2588-03
|
04-Nov-13
|
N/A
|
GCL
|
Chemical waste produced in
Contract No. HY/2012/07 (WA5 adjacent
to Cheung Tung Road, Yam O)
|
|
Construction Waste Disposal
Account
|
7017735
|
10-Jul-13
|
N/A
|
GCL
|
-
|
|
Construction Waste Disposal
Account
|
7019470
|
03-Mar-14
|
N/A
|
GCL
|
Vessel CHIT Account
|
|
Waste Water Discharge License
|
WT00019017-2014
|
13-May-14
|
31-May-19
|
GCL
|
Discharge for marine portion
|
|
Waste Water Discharge License
|
WT00019018-2014
|
13-May-14
|
31-May-19
|
GCL
|
Discharge for land portion
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS1045-16
|
14-Oct-16
|
13-Apr-17
|
GCL
|
For Broad
Permit
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS1309-16
|
20-Dec-16
|
19-Jun-17
|
GCL
|
Broad Permit for Whole Site Areas
|
|
Construction Noise Permit for night works and works in general
holidays
|
GW-RS1044-16
|
14-Oct-16
|
13-Apr-17
|
GCL
|
Pre-casted
pile cap shell installation at E8-E13
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0295-17
|
13-Apr-17
|
12-Oct-17
|
GCL
|
Pre-casted
pile cap shell installation at E8-E13
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0408-17
|
11-May-17
|
30-Sept-17
|
GCL
|
Pre-casted
pile cap shell installation at E8-E13
|
|
Construction Noise Permit for night works and works in general
holidays
|
GW-RS0082-17
|
15-Feb-17
|
31-Mar-17
|
GCL
|
Water Pipe Works at Tung
Chung
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RW0708-16
|
20-Dec-16
|
18-Jun-17
|
GCL
|
General works at WA5
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0157-17
|
28-Feb-17
|
31-May-17
|
GCL
|
Broad
Permit for Segment Launching at Land Portion
|
|
Marine Dumping Permit
|
EP-MD-17-153
|
01-Jan-17
|
30-Jun-17
|
GCL
|
For dumping Type I sediment
|
|
Marine Dumping Permit
|
EP-MD-17-185
|
01-Mar-17
|
31-Mar-17
|
GCL
|
For dumping Type I
(Dedicated Site) and Type II sediment
|
|
|
|
|
|
|
|
In response to the site audit
findings, the Contractor has carried out corrective actions.
A summary of the Environmental
Mitigation and Enhancement Measure Implementation Schedules (EMIS) is presented
in Appendix
C.
The necessary mitigation measures were implemented properly for this
Contract.
Results
for 1-hour TSP, 24-hour TSP,
construction noise and water quality complied with the Action/ Limit levels in
the reporting period.
The
construction impact on depth-averaged
SS was assessed by comparing the quarterly mean values of depth-averaged SS
with the relevant ambient mean values (Table
2.18). The monitoring results showed
that the quarterly means of depth-averaged SS at all sampling stations during
both mid-ebb and mid-flood tides were well below the corresponding ambient
means. The depth-averaged SS results
suggest that the Project did not cause unacceptable impact on water quality in
the reporting period.
Table
2.18 Comparison between Quarterly Mean and
Ambient Mean Values of Depth-averaged Suspended Solids
|
Station
|
Baseline
Mean
|
Ambient
Mean (a)
|
Quarterly Mean (March to May
2017)
|
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
|
CS(Mf)3/
CS(Mf)3(N)
|
9.2
|
12.8
|
12.0
|
16.6
|
11.6
|
11.2
|
|
CS(Mf)5
|
9.2
|
11.5
|
11.9
|
14.9
|
11.7
|
11.5
|
|
SR4
|
10.3
|
12.3
|
13.4
|
16.0
|
11.5
|
11.4
|
|
SR4a
|
9.1
|
9.8
|
11.9
|
12.7
|
11.4
|
11.3
|
|
IS8
|
11.3
|
13.5
|
14.6
|
17.6
|
11.3
|
11.2
|
|
IS(Mf)9
|
10.9
|
14.3
|
14.2
|
18.5
|
11.5
|
11.1
|
|
IS(Mf)16
|
11.4
|
10.3
|
14.8
|
13.4
|
11.2
|
11.1
|
|
Notes:
|
|
(a)
Ambient
mean value is defined as a 30% increase of the baseline mean value
(b)
Water Quality Monitoring
Station CS(Mf)3 was relocated to CS(Mf)3(N) since 2
May 2017.
|
One
(1) Limit Level exceedance was recorded for impact dolphin monitoring in this
reporting quarter. Following the review
of the monitoring data and marine works details as per the procedure stipulated
in the Event and Action Plan of the Updated EM&A Manual, no unacceptable
impact was associated with the construction works under this Contract that may
have affected the dolphin usage in the North Lantau region. Investigation findings were detailed in Appendix L.
The
Environmental Complaint Handling Procedure is provided in Figure 2.5.
There
were two (2) complaints received in the reporting period. One complaint was received from EPD on 28
March 2017 regarding noise nuisance and muddy
water from construction sites of Hong Kong Boundary Crossing Facilities of Hong
Kong-Zhuhai-Macao Bridge related Hong Kong projects in the reporting
period. Upon investigation, there is no evidence to
prove that the complaint case is related to this Contract. Another complaint was received from EPD on 31
May 2017 regarding construction dust nuisance
near site exit of Hong Kong Boundary Crossing Facilities of Hong
Kong-Zhuhai-Macao Bridge related Hong Kong projects in the reporting period. Enhanced measurement was undertaken by the Contractor
to mitigate dust emission.
There
was one (1) environmental case referred by Environmental Project Office (ENPO)
on 18 April 2017 regarding an enquiry from Environmental Protection Department
(EPD) related to suspected muddy water discharge from Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) reported in the
news on 17 April 2017. Upon
investigation, the environmental case is considered as an enquiry and no
complaint report would be included according to Environmental Complaint
Handling Procedure (Fig 2.5).
Statistics
on complaint, notification of summons of successful prosecution are summarized
in Appendix L.
3
Future Key Issues
As informed by the Contractor, the
major works for the Contract in the coming quarter are summarized below:
June
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation;
·
Installation
of deck segment and pier head segment; and
·
Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
July 2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Pier
construction;
·
Launching
gantry operation;
·
Installation
of deck segment and pier head segment; and
·
Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
August
2017
Marine Works
·
Uninstallation
of marine piling platform;
·
Launching
gantry operation;
·
Installation
of deck segment and pier head segment; and
·
Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Installation
of pier head and deck segments; and
·
Slope
work of Viaducts A, B & C.
3.2
Key Issues for the
Coming Quarter
Potential environmental impacts arising from the above
upcoming construction activities are mainly associated with air quality, noise,
marine water quality, marine ecology and waste management issues.
Impact
monitoring for air quality, noise, marine water quality and dolphin monitoring
are scheduled to continue for the next reporting period.
The
monitoring programme has been reviewed and was
considered as adequate to cater for the nature of works in progress.
4
Conclusions and recommendations
The Fourteenth Quarterly EM&A
Report presents the findings of the EM&A activities undertaken during the
period from 1 March to 31 May 2017, in accordance with the Updated EM&A
Manual and the requirements of the Environmental
Permits (EP-354/2009/D and EP-353/2009/K).
Neither
Action Level nor Limit Level exceedances were observed for air quality, noise
and water quality monitoring in this reporting period.
A
total of four (4) groups of twenty-four (24) Chinese White Dolphins were
sighted during the six sets of survey from March to May 2017. One (1) Limit Level exceedance was recorded
for the quarterly dolphin monitoring data between March
to May 2017, no unacceptable impact from the activities of this Contract on
Chinese White Dolphins was noticeable from the general observations. It is critical to monitor the dolphin usage
in North Lantau region in the upcoming quarters, to determine whether the
dolphins are continuously affected by the various construction activities in
relation to the HZMB-related works, and whether suitable mitigation measure can
be applied to revert the situation.
Environmental site inspection was carried
out 13 times in the reporting period.
Recommendations on remedial actions were given to the Contractor for the
deficiencies identified during the site audits.
There
were two environmental complaints and an environmental case in the reporting
period. No notification of summon or
successful prosecution in the reporting period.
The
monitoring programme has been reviewed and was
considered as adequate to cater for the nature of works in progress. Change to the monitoring
programme was thus not recommended at this stage. The monitoring programme will be evaluated as
appropriate in the next 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.
ications of
Summons and Successful
Prosecutions