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, Notifications of Summons and Successful
Prosecutions
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 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 seventh quarterly EM&A report
presenting the EM&A works carried out during the period from 1 June to 31
August 2015 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:
June 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling
and
· Installation of
pier head segment
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and
·
Slope work of Slopes 9SE-B/C9 and 9SE-B/F85.
July 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction and
installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaducts A & B.
August 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaducts A & B.
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 June and August
2015, whilst no unacceptable impact from the construction activities of the
TM-CLKL Southern Connection Viaduct Section on Chinese White Dolphins was
noticeable from general observations during the dolphin monitoring in this
reporting quarter.
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 Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White
Dolphin) was recorded in the monitoring period during the exclusion zone
monitoring.
Environmental
Complaints, Non-compliance & Summons
One (1) complaint with regard to dust emission from
dump truck was received on 18 June 2015.
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:
September 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaduct A.
October 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Installation of
deck segment and pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaduct A.
November 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly; and
· Installation of
deck segment and pier head segment.
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Installation of
pier head segment; and
·
Slope work of Viaduct A.
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
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 Seventh 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 June to 31 August 2015.
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
|
|
SOR
(AECOM Asia Company
Limited)
|
Chief
Resident Engineer
|
Daniel Ip
|
3553 3800
|
2492 2057
|
|
|
Resident
Engineer
|
Kingman Chan
|
3691 2950
|
3691 2899
|
|
ENPO / IEC
(Ramboll Environ Hong Kong Ltd.)
|
ENPO Leader
|
Y.H. Hui
|
3547 2133
|
3465 2899
|
|
IEC
|
Dr. F.C.
Tsang
|
3547 2134
|
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 June to August 2015
is shown in Appendix B.
As informed by the Contractor,
details of the major works carried out in this reporting period are listed
below:
June 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling
and
· Installation of
pier head segment
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and
·
Slope work of Slopes 9SE-B/C9 and 9SE-B/F85.
July 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaducts A & B.
August 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaducts A & B.
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
Hong Kong – Zhuhai –Macao Bridge Hong Kong Projects (HKZMB) during October 2011
has included the two monitoring stations ASR9A and ASR9C for this project. Thus, the baseline monitoring results and
Action/ Limit Level presented in HKZMB 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
|
2, 8, 11,
17, 23 and 29 June 2015;
2, 7, 13,
16, 22 and 28 July 2015;
3, 6, 12,
18, 24 and 27 August 2015
|
Area 4
|
On ground at
the 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 Twentieth
to Twenty-second Monthly EM&A Report.
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)
|
|
June 2015
|
ASR 8A
|
59
|
41
- 95
|
394
|
500
|
|
ASR 9
|
71
|
48
- 119
|
393
|
500
|
|
July 2015
|
ASR 8A
|
63
|
41
- 139
|
394
|
500
|
|
ASR 9
|
73
|
41
- 116
|
393
|
500
|
|
August 2015
|
ASR 8A
|
88
|
58
- 148
|
394
|
500
|
|
ASR 9
|
104
|
60
- 165
|
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)
|
|
June 2015
|
ASR 8A
|
45
|
42
– 47
|
178
|
260
|
|
ASR 9
|
47
|
45
– 49
|
178
|
260
|
|
July 2015
|
ASR 8A
|
51
|
44
– 75
|
178
|
260
|
|
|
ASR 9
|
56
|
47
– 89
|
178
|
260
|
|
August 2015
|
ASR 8A
|
61
|
48
– 85
|
178
|
260
|
|
|
ASR 9
|
68
|
51
– 101
|
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 eighteen (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 Hong
Kong – Zhuhai – Macao Bridge Hong Kong Projects (HKZMB) during the period of 18
October to 1 November 2011 has included the monitoring station NSR1 for this
project. Thus, the baseline monitoring
results and Action/ Limit Level presented in HKZMB 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
|
2, 8, 11,
17, 23 and 29 June 2015;
2, 7, 13,
16, 22 and 28 July 2015;
3, 6, 12,
18, 24 and 27 August 2015
|
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 schedules for noise monitoring in the reporting
quarter are provided in Appendix E.
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 Twentieth to Twenty-second Monthly EM&A Report.
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)
|
|
June 2015
|
59
|
58
- 60
|
75
|
|
July 2015
|
60
|
53
- 61
|
75
|
|
August 2015
|
58
|
57
- 60
|
75
|
A total of eighteen (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 Hong Kong – Zhuhai – Macao Bridge Hong Kong Projects (HKZMB) between 6 and 31
October 2011 has included all monitoring stations except SR4a for the
Project. Thus, the baseline monitoring
results except for station SR4a and Action/Limit Level presented in HKZMB
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 (Figure 2.3; 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
DO (mg/L and %
of
saturation)
·
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)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.
|
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
|
|
Turbidimeter
|
HACH Model 2100Q
|
|
pH meter
|
HANNA HI8314 &
Thermo Scientific Orion 2 Star
|
|
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. The
WQM on 7 July 2015 was cancelled due to adverse weather.
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 Twentieth
to Twenty-second Monthly EM&A Reports.
In this reporting period, a total of thirty-eight (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.
The SS levels at IS8 on 25 July 2015 and IS(Mf)16 on 1
August 2015 during mid-ebb tide were higher than the corresponding Action Level
but not higher than 120% of the upstream control station at the same tide on
same day. Thus the results were not
regarded as exceedances.
2.4
Dolphin
Monitoring
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 dolphins. 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
|
814577
(815456)
|
13
|
Start
Point
|
816506
|
819480
|
|
1
|
End
Point
|
804671
|
831404
|
13
|
End
Point
|
816506
|
824859
|
|
2
|
Start
Point
|
805475
|
815457
(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
|
820690
(820880)
|
19
|
Start
Point
|
822513
|
823268
|
|
7
|
End
Point
|
810499
|
824613
|
19
|
End
Point
|
822513
|
824321
|
|
8
|
Start
Point
|
811508
|
820847
(821123)
|
20
|
Start
Point
|
823477
|
823402
|
|
8
|
End
Point
|
811508
|
824254
|
20
|
End
Point
|
823477
|
824613
|
|
9
|
Start
Point
|
812516
|
820892
(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
|
818449
(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
|
|
|
|
|
|
Note:
Northing
co-ordinates in bracket are the adjusted co-ordinates since
August 2015 due
to obstruction of permanent structures associated with construction
works. Approval of the adjustments
from EPD was recieved in July 2015.
|
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 900.64 km of survey effort was collected,
with 92.8% 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, 345.58
km and 555.06 km of survey effort were conducted in NEL and NWL survey areas
respectively. The total survey effort
conducted on primary lines was 655.74 km, while the effort on secondary lines
was 244.90 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 June to
August 2015, a
total of twelve (12) groups of forty-two (42) Chinese White Dolphins were
sighted. All dolphin sightings were made
during on-effort search, and all of them were made on primary lines. In this quarterly period, all except one (1)
dolphin groups were sighted in NWL, while one (1) group of a lone animal was
sighted in NEL. Notably, this was the
first dolphin sighted in NEL since monitoring surveys in July 2014. Summary table of the dolphin sightings is
shown in 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 & 10th
Jun 2015
|
0.00
|
0.00
|
|
Set 2: 24th & 26th
Jun 2015
|
2.64
|
2.64
|
|
Set 3: 2nd & 7th
Jul 2015
|
0.00
|
0.00
|
|
Set 4: 22nd & 27th
Jul 2015
|
0.00
|
0.00
|
|
Set 5: 10th & 14th
Aug 2015
|
0.00
|
0.00
|
|
Set 6: 19th & 28th
Aug 2015
|
0.00
|
0.00
|
|
NWL
|
Set 1: 2nd & 10th
Jun 2015
|
1.51
|
15.15
|
|
Set 2: 24th & 26th
Jun 2015
|
0.00
|
0.00
|
|
Set 3: 2nd & 7th
Jul 2015
|
1.69
|
3.38
|
|
Set 4: 22nd & 27th
Jul 2015
|
3.46
|
6.92
|
|
Set 5: 10th & 14th
Aug 2015
|
0.00
|
0.00
|
|
Set 6: 19th & 28th
Aug 2015
|
8.53
|
29.84
|
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)
|
|
June
- August 2015
|
September
-November 2011
|
June
- August 2015
|
September
-November 2011
|
|
Northeast
Lantau
|
0.44 ± 1.08
|
6.00 ± 5.05
|
0.44 ± 1.08
|
22.19 ± 26.81
|
|
Northwest
Lantau
|
2.53 ± 3.20
|
9.85 ± 5.85
|
9.21 ± 11.57
|
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
Except one (1) group of ten (10)
individuals was sighted, group size of Chinese White
Dolphins ranged from one (1) to five (5) individuals
per group in North Lantau region during June 2015 to August 2015. 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 Encounter
Rates
|
|
Average Dolphin Group Size
|
|
June - August 2015
|
September - November 2011
|
|
Overall
|
3.50 ± 2.65 (n =
12)
|
3.72 ± 3.13 (n =
66)
|
|
Northeast Lantau
|
1.00 (n = 1)
|
3.18 ± 2.16 (n =
17)
|
|
Northwest Lantau
|
3.73 ± 2.65 (n =
11)
|
3.92 ± 3.40 (n =
49)
|
One (1) Limit
Level exceedance was observed for the quarterly dolphin monitoring data between
June and August 2015. 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 TMCLKL Southern Connection Viaduct in the past and during the
baseline monitoring period, it is apparent that dolphin usage has been
significantly reduced in NEL, 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
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 Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White
Dolphin) was recorded in the monitoring period during the exclusion zone
monitoring.
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.
Thirteen (13) site inspections were carried out in the reporting quarter
on 2, 10, 17 and 25 June 2015; 2, 9, 14, 22 and 30 July 2015; 7, 12, 19 and 27
August 2015.
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
|
|
2 June 2015
|
Pier E11
·
Excessive soil was found in gutter.
·
Stagnant water was accumulated in drip tray.
Pier E6
·
A label for sediment was missing on barge.
Barge G39
·
Some chemical containers were not placed in drip
tray.
|
Pier E11
·
Gutter should be cleaned up regularly.
·
Stagnant water should be removed to avoid runoff.
Pier E6
·
Type of sediment should be properly labelled..
Barge G39
·
Chemical containers should be placed in drip tray.
|
|
10 June 2015
|
Area 1
·
Refuse was found in drainage.
·
Some chemical containers were not placed in drip
tray
|
Area 1
·
Refuse in drainage should be cleaned up.
·
Chemical containers should be placed in drip tray.
|
|
17 June 2015
|
Pier E13
·
The updated dumping permit was not displayed.
·
A generator was not placed on acoustic decoupling
pad.
·
A drip tray was not plugged.
|
Pier E13
·
The updated dumping permit should be displayed.
·
Generator on marine platform should be placed on
acoustic decoupling pad.
·
Drip tray should be plugged.
|
|
25 June 2015
|
Site
Entrance 4A
·
Cover of a dump truck was damaged.
·
Excessive soil was found in drainage.
·
Chemical containers were not placed in drip tray.
Barge G39
·
Chemical containers were not placed in drip tray.
|
Site
Entrance 4A
·
Cover of a dump truck should be able to effectively
cover dusty material.
·
Soil in drainage should be cleaned up. Bund or
sandbag should be provided to avoid soil runoff into drainage.
·
Chemical containers should be placed in drip tray.
Barge G39
·
Chemical containers should be placed in drip tray.
|
|
2 July 2015
|
Area 1
Ÿ Chemical
containers were not placed in drip tray.
Ÿ Refuse
was found in drainage.
Area 2
Ÿ EP was not displayed.
|
Area 1
Ÿ Chemical
containers should be placed in drip tray.
Ÿ Refuse
in drainage should be cleaned up regularly.
Area 2
Ÿ EP should be displayed.
|
|
9 July 2015
|
Pier A2
Ÿ Gutter
was not properly installed.
Seafront
Ÿ A
drip tray was not plugged.
Ÿ A power pack was not placed in drip tray.
Ÿ Checklist for a wet sep was not displayed.
|
Pier A2
Ÿ Gutter
should be properly installed.
Seafront
Ÿ Drip
tray should be plugged.
Ÿ Power pack should be placed in drip tray.
Ÿ Checklist for wet sep should be displayed.
|
|
14 July 2015
|
Area 1
Ÿ The
ground was partially dry.
Ÿ Some
chemical containers were not placed in drip tray.
Ÿ The
old EP was displayed.
Site Access
4A
Ÿ A
drip tray for air compressor contained stagnant water.
Pier D12 A
Ÿ Stagnant
water was accumulated in drip tray.
Pier D10
Ÿ The
ground was partially dry.
Ÿ Some
chemical containers were not placed in drip tray.
|
Area 1
Ÿ Unpaved
area should be watered to avoid dust emission.
Ÿ Chemical
containers should be placed in drip tray.
Ÿ The
old EP was removed immediately.
Site Access
4A
Ÿ Stagnant
water in drip tray should be removed to avoid overflow.
Pier D12 A
Ÿ Stagnant
water in drip tray should be removed to avoid overflow.
Pier D10
Ÿ Unpaved
area should be watered to avoid dust emission.
Ÿ Chemical
containers should be placed in drip tray.
|
|
22 July 2015
|
Slope B/F8
Ÿ Oil
stain was found in drainage.
Ÿ Chemical
containers were not placed in drip tray.
Slope B/C9
Ÿ Chemical
containers of Aqua Sed were not labelled.
Seafront
Ÿ Chemical
containers were not placed in drip tray.
|
Slope B/F8
Ÿ Oil
stain in drainage should be removed.
Ÿ Chemical
containers should be placed in drip tray.
Slope B/C9
Ÿ Chemical
containers should be labelled.
Seafront
Ÿ Chemical
containers should be placed in drip tray.
|
|
30 July 2015
|
Pier D5
Ÿ A
drip tray for generator was not plugged.
Ÿ A
decoupling mat was damaged.
Ÿ A
part of gutter was damaged.
Barge Kiu Lik (next to Pier A7)
Ÿ A
drip tray for generator was not plugged.
Ÿ Some
chemical containers were not placed in drip tray.
Pier E12
Ÿ A
generator was not placed on acoustic decoupling mat.
|
Pier D5
Ÿ Drip
tray for generator should be plugged.
Ÿ Damaged
decoupling mat should be replaced by new decoupling mat.
Ÿ Damaged
gutter should be repaired to avoid runoff.
Barge Kiu Lik (next to Pier A7)
Ÿ Drip
tray for generator should be plugged.
Ÿ Chemical
containers should be placed in drip tray.
Pier E12
Ÿ Generator
should be placed on acoustic decoupling mat.
|
|
7 August
2015
|
Pier C3
Ÿ Stagnant
water was accumulated in drip tray
Pier E12
Ÿ Gutter
was not properly installed.
|
Pier C3
Ÿ Stagnant
water in drip tray should be cleaned up to avoid runoff.
Pier E12
Ÿ
Gutter should be properly installed to avoid runoff.
|
|
12 August
2015
|
Area 1
Ÿ Chemical
containers were placed too close to the natural habitat.
Ÿ Chemical
containers were placed without drip tray.
Ÿ Soil
stockpile next to drainage was not well covered.
Pier B14
Ÿ Chemical
containers were placed without drip tray.
|
Area 1
Ÿ Chemical
containers should be placed in drip tray and away from natural habitat.
Ÿ Tarpaulin
sheet or hydroseeding should be provided to the
soil stockpile next to drainage.
Pier B14
Ÿ Chemical
containers should be placed in drip tray.
|
|
19 August
2015
|
Pier E6
Ÿ Some
chemical containers were not placed in drip tray.
Ÿ An
expired dumping permit was displayed.
Pier E12
Ÿ A
drip tray was not plugged.
Pier B13
Ÿ Refuse
was found accumulated onsite.
|
Pier E6
Ÿ Chemical
containers should be placed in drip tray.
Ÿ Expired
dumping permit should not be displayed.
Pier E12
Ÿ Drip
tray should be plugged.
Pier B13
Ÿ Refuse
should be regularly cleaned up
|
|
27 August
2015
|
Abutment D
Ÿ A
label of chemical container was damaged.
Ÿ Checklist
of wetsep was not displayed.
Ÿ Stagnant
water was found in a drip tray for air compressor.
Pier E1
Ÿ Excessive
soil was found in gutter
Pier C4
Ÿ A
generator was not well placed on decoupling pad.
|
Abutment D
Ÿ Chemical
container should be properly labeled.
Ÿ Checklist
of wetsep should be displayed.
Ÿ Stagnant
water in drip tray should be removed to avoid runoff.
Pier E1
Ÿ Excessive
soil should be cleaned up regularly.
Pier C4
Ÿ Stationary
PME should be well placed on decoupling pad.
|
The
Contractor has rectified all of the observations identified during
environmental site inspections in the reporting period.
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), imported fill, recyclable
materials, chemical wastes and marine sediments (Categories L & M). 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
|
|
|
June 2015
|
7,166
|
0
|
1,351
|
89,930
|
119
|
17
|
324
|
287
|
|
July 2015
|
2,322
|
78
|
992
|
111,570
|
105
|
1,400
|
0
|
0
|
|
August 2015
|
1,265
|
0
|
105
|
87,760
|
133
|
1,200
|
0
|
0
|
|
Total
|
10,753
|
78
|
2,448
|
289,260
|
357
|
2,617
|
324
|
287
|
|
|
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-354/2009/D
|
13-Mar-15
|
N/A
|
HyD
|
Tuen Mun-
Chek Lap Kok Link
|
|
Construction Dust Notification
|
361571
|
5-Jul-13
|
N/A
|
GCL
|
-
|
|
Construction Dust Notification
|
362093
|
17-Jul-13
|
N/A
|
GCL
|
For Area 23
|
|
Chemical Waste Registration
|
5213-961-G2380-13
|
10-Oct-13
|
N/A
|
GCL
|
Chemical waste produced in
Contract 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
HY/2012/07 (Area 2 adjacent to Cheung Tung Road, Pak Mong Village)
|
|
Chemical Waste Registration
|
5213-974-G2588-03
|
4-Nov-13
|
N/A
|
GCL
|
Chemical waste produced in
Contract HY/2012/07 (WA5 adjacent to Cheung Tung Road, Yam O)
|
|
Chemical Waste Registration
|
5213-951-G2380-17
|
12-Jun-14
|
N/A
|
GCL
|
Viaducts A, B, C, D & E
|
|
Construction Waste Disposal
Account
|
7017735
|
10-Jul-13
|
N/A
|
GCL
|
-
|
|
Construction Waste Disposal
Account
|
7019470
|
3-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
|
Nil
|
N/A
|
N/A
|
GCL
|
For Piling Works
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RW0093-15
|
26-Feb-15
|
26-Aug-15
|
GCL
|
General works at WA5
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0307-15
|
27-Mar-15
|
27-Sep-15
|
GCL
|
For Load unload at NLH near
Viaduct D
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0691-15
|
23-Jun-15
|
22-Dec-15
|
GCL
|
For Broad Permit
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0078-15
|
28-Jan-15
|
29-Jul-15
|
GCL
|
For Plant mobilization using
tractor with trailer
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0539-15
|
14-May-15
|
31-Jul-15
|
GCL
|
B9-B16 Pier Head Segments
Erection
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0137-15
|
12-Feb-15
|
15-Aug-15
|
GCL
|
Pre-casted pile cap shell
installation at E10-E13
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RW0695-15
|
30-Jun-15
|
30-Nov-15
|
GCL
|
Segment Erection between B6-B11
by LG1
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0491-15
|
8-May-15
|
30-Jun-15
|
GCL
|
TTA Case 009 Ch.2.1E-4.2E
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0489-15
|
8-May-15
|
7-Aug-15
|
GCL
|
B8 Pier Head Temp Works Lifting
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0539-15
|
14-May-15
|
31-Jul-15
|
GCL
|
B9-B16 Pier Head Segments
Erection
|
|
Construction Noise Permit for night
works and works in general holidays
|
GW-RS0769-15
|
15-Jul-15
|
30-Sep-15
|
GCL
|
TTA Case 009 Ch.2.1E-4.2E
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RW0422-15
|
21-Aug-15
|
25-Jan-16
|
GCL
|
General works at WA5
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0911-15
|
27-Aug-15
|
26-Feb-16
|
GCL
|
Broad Permit for Seg. Launching at Land Portion
|
|
Construction Noise Permit for night
works and works in general holidays
|
GW-RS0855-15
|
12-Aug-15
|
11-Feb-16
|
GCL
|
Pier construction at C7, D8, D9
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RW0861-15
|
13-Aug-15
|
30-Sep-15
|
GCL
|
Portal beam installation at
Pier D14
|
|
Marine Dumping Permit
|
EP/MD/16-020
|
22-May-15
|
26-Jun-15
|
GCL
|
For dumping Type I (Dedicated
Site) and Type II sediment
|
|
Marine Dumping Permit
|
EP/MD/15-257
|
2-Apr-15
|
7-Oct-15
|
GCL
|
For dumping Type I 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. Except CS(Mf)3, SR4, IS8 and IS(Mf)9 during
mid-flood tide, results showed that the quarterly means of depth-averaged SS at
all sampling stations during both mid-ebb and mid-flood tides were higher than
the corresponding ambient means (Table 2.18).
One-way ANOVA was conducted to examine whether there is significant
difference of depth-averaged SS between ambient levels and results in this
quarter. Statistical significant
differences were only found at control stations CS(Mf)3
(F1,68 = 11.6, p = 0.001) and CS(Mf)5 (F1,72 = 10.6, p = 0.002) during mid-ebb tide between
ambient level and impact monitoring of this quarter. No significant difference was detected at
impact monitoring stations. The
analytical results suggested that the increased SS levels are likely due to the
natural fluctuation in the western waters of Hong Kong. The ET will monitor the trend of
depth-averaged SS in the upcoming quarters to determine whether there is any
change in water quality associated with this Project and further mitigation
measures will be recommended if deemed necessary.
Table 2.18 Comparison between Quarterly Mean and Ambient Mean Values of
Depth-averaged Suspended Solids
|
Station
|
Baseline
Mean
|
Ambient
Mean (a)
|
Quarterly Mean (June 2015 to
August 2015)
|
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
|
CS(Mf)3
|
9.2
|
12.8
|
12.0
|
16.6
|
15.8
|
14.5
|
|
CS(Mf)5
|
9.2
|
11.5
|
11.9
|
14.9
|
15.3
|
14.9
|
|
SR4
|
10.3
|
12.3
|
13.4
|
16.0
|
15.1
|
14.4
|
|
SR4a
|
9.1
|
9.8
|
11.9
|
12.7
|
15.1
|
14.3
|
|
IS8
|
11.3
|
13.5
|
14.6
|
17.6
|
14.9
|
14.5
|
|
IS(Mf)9
|
10.9
|
14.3
|
14.2
|
18.5
|
14.8
|
14.3
|
|
IS(Mf)16
|
11.4
|
10.3
|
14.8
|
13.4
|
15.5
|
14.4
|
|
Notes:
|
|
(a) Ambient mean value is defined as a 30%
increase of the baseline mean value
|
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, there was no unacceptable impact on dolphin usage in the North
Lantau region associated with construction works under this Contract. Investigation findings were detailed in Appendix L.
The
Environmental Complaint Handling Procedure is provided in Figure 2.5.
One (1) environmental complaint with regard to dust
emission from vehicles of this Project was received on 18 June 2015. An investigation was carried out by ET on 18
June 2015. Another investigation was
conducted by EPD with SOR and Contractor on 19 June 2015. The complaint was followed-up in accordance
with the Environmental Complaint Handling Procedure. Detailed investigation report for the
complaint is presented 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:
September 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Land piling;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaduct A.
October 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly;
· Installation of
deck segment and pier head segment.
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaduct A.
November 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry assembly; and
· Installation of
deck segment and pier head segment.
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Installation of
pier head segment; and
·
Slope work of Viaduct A.
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
This Seventh Quarterly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 June to
31 August 2015, in accordance with the Updated EM&A Manual and the
requirements of the Environmental Permit
(EP-354/2009/D).
Neither Action Level nor Limit Level exceedances were
observed for air quality, noise and water quality monitoring in this reporting
period.
A total of twelve (12) groups of forty-two (42)
Chinese White Dolphins were sighted during the six sets of survey from June to
August 2015. Whilst one (1)
Limit Level exceedance was recorded for the quarterly dolphin monitoring data
between June and August 2015, 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 thirteen
(13) times in the reporting period.
Recommendations on remedial actions were given to the Contractor for the
deficiencies identified during the site audits.
One
(1) environmental complaint regarding dust emission from vehicles of this
Project was received 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.
