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
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 Programme for the Coming Months
3.2 Key Issues for the Coming Month
3.3 Monitoring Schedule for the Coming Month
4 Conclusions and recommendations
4.1 Conclusions
4.2 Recommendations
List of Tables
Figures
Figure
1.1 General
Project Layout Plan
Figure
1.2 Location
Plan and Key Plan
Figure
1.3 General
Layout
Figure
1.4 Proposed
Ground Investigation Plan (Sheet 1 of 8)
Figure
1.5 Proposed
Ground Investigation Plan (Sheet 2 of 8)
Figure
1.6 Proposed
Ground Investigation Plan (Sheet 3 of 8)
Figure
1.7 Proposed
Ground Investigation Plan (Sheet 4 of 8)
Figure
1.8 Proposed
Ground Investigation Plan (Sheet 5 of 8)
Figure
1.9 Proposed
Ground Investigation Plan (Sheet 6 of 8)
Figure
1.10 Works Area and Hoarding Plan (Sheet 1 of 2)
Figure
1.11 Works Area and Hoarding Plan (Sheet 2 of 2)
Figure
1.12 Location of Area 4
Figure
2.1 Locations
of Impact Air Quality Monitoring Stations
Figure
2.2 Locations
of Impact Noise Monitoring Station
Figure
2.3 Locations
of Impact Water Quality Stations
Figure
2.4 Line
Transects for Impact Dolphin Monitoring Survey
Figure
2.5 Locations
of Dolphin Sightings during Impact Dolphin Monitoring Survey
Figure
2.6 Environmental Complaint Handling Procedure
List of Appendices
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). 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.
The
construction phase of the Contract commenced on 31 October 2013 and will be
tentatively be 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 second monthly EM&A report presenting the EM&A works carried out
during the period from 1 to 31 December 2013 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:
Marine-based
Works
·
Survey tower erection;
·
Marine piling platform
installation;
·
Construction of rockfill platform at Viaduct D landing;
and
·
Additional marine ground
investigation (GI) and laboratory testing.
Land-based
Works
· SOR’s and Contractor’s site offices erection at Area 5;
· Satellite container offices erection along seawall;
· Tree felling at Pak Mong area;
· Fence relocation for Viaducts A, C & D;
· Additional land GI, trial pits and laboratory testing;
and
· Utility surveys.
A summary of
monitoring and audit activities conducted in the reporting period is listed
below:
24-hour TSP
monitoring 6
sessions
1-hour TSP
monitoring 6
sessions
Noise
monitoring 6
sessions
Impact Water
Quality Monitoring 13
sessions
Impact dolphin
monitoring 2
sessions
Joint Environmental
site inspection 4
sessions
Breaches of Action and Limit Levels for Air Quality
Two (2) exceedances of Action Level in 24-hr TSP monitoring were
recorded at both ASR8A and ASR8 in the reporting month. No exceedance
of Action and Limit Levels was recorded for 1-hour monitoring in the reporting
month. The exceedance
was considered not related to the construction works of this Contract upon
further investigation.
Breaches of Action and Limit Levels for Noise
No exceedance of Action and Limit Levels was recorded for
construction noise monitoring in the reporting month.
Breaches of Action and Limit Levels for Water Quality
No exceedance of Action and Limit Levels was recorded for
impact water quality monitoring in the reporting month.
Impact Dolphin Monitoring
During this
month of dolphin monitoring, no unacceptable impact from the construction
activities of the TM-CLKL Southern Connection Viaduct Section on Chinese White
Dolphins was noticeable from general observations. Due
to monthly variation in dolphin occurrence within the study area, it would be
more appropriate to draw conclusion on whether any impacts on dolphins have
been detected related to the construction activities of the TM-CLKL Southern
Connection Viaduct Section in the quarterly EM&A reports, where comparison
on distribution, group size and encounter rates of dolphins between the
quarterly impact monitoring period and baseline monitoring period will be made.
Daily
marine mammal exclusion zone monitoring was undertaken. No sighting of the Indo-Pacific humpback
dolphin Sousa chinensis
was recorded in December 2013 during the exclusion zone monitoring.
Environmental Complaints, Non-compliance & Summons
No complaint,
notification of summons and successful prosecution was received in the
reporting month.
Reporting Change
There was no
reporting change required in the reporting period.
Upcoming Works for the Next Reporting Period
Works to be
undertaken in the next monitoring period of January 2014 include the following:
Marine
Works
· Erect
temporary working platforms;
· GI
and trial pit works for marine foundation at Viaduct B; and
· Marine
foundation at Viaduct B, E2, E5-8 and E13.
Land-based
Works
· Site
set-up for Area 2 and works area along Cheung Tung Road for Viaduct B;
· Set
up container site offices along CEDD access road; and
· Construct
temporary road at CEDD track for piling.
Future Key Issues
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of January 2014 are mainly associated with dust,
noise, marine water quality, marine ecology and waste management issues.
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-145/2009), 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.
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). 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.
This is the second monthly 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 in December
2013.
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
|
|
ENPO / IEC
(ENVIRON
Hong Kong Ltd.)
|
ENPO Leader
|
Y.H. Hui
|
3465 2888
|
3465 2899
|
|
IEC
|
Tony Cheng
|
3465 2888
|
3465 2899
|
|
Contractor
(Gammon
Construction Limited)
|
Environmental
Manager
|
Brian Kam
|
3520 0381
|
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
|
1.4
Summary of Construction Works
The construction phase of the
Contract commenced on 31 October 2013. The three-month rolling
construction programme is shown in Appendix B.
As informed by the Contractor, details of the major works
carried out in this reporting period are listed below:
Marine-based
Works
· Survey tower erection;
· Marine piling platform installation;
· Construction of rockfill platform at Viaduct D
landing; and
· Additional marine ground investigation (GI) and laboratory testing.
Land-based
Works
· SOR’s and Contractor’s site offices erection at Area 5;
· Satellite container offices erection along seawall (ie
CEDD Access Road);
· Tree felling at Pak Mong area;
· Fence relocation for Viaducts A, C & D;
· Additional land GI, trial pits & lab testing; and
· Utility surveys.
The general layout plan of the site showing the detailed
works areas is shown in Figures 1.1 to 1.12.
The environmental mitigation measures implementation
schedule are presented in Appendix
C.
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.
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 and impact 24-hour
TSP monitoring was carried out once every six (6) days when the highest dust
impact was expected. The Action and
Limit Level of the air quality monitoring is provided in Appendix D.
Air quality monitoring stations ASR9A and ASR9C in
Siu Ho Wan MTRC Depot were the proposed locations in accordance with the
Updated EM&A Manual. However,
authorization of getting access into Siu Ho Wan MTRC Depot is still being sought
for the impact monitoring of the EM&A programme
for the captioned Contract. Thus, a
proposal for setting up alternative air quality monitoring stations at ASR8A
(Area 4) and ASR8 (Rooftop of Pak Mong Village Watch
Tower) was submitted on 13 November 2013 which was subsequently approved.
Table 2.1 Locations
of Impact Air Quality Monitoring Stations
|
Monitoring Dates
|
Monitoring Station
|
Location
|
Description
|
|
3, 9, 13,
19, 24, 30 December 2013
|
ASR 8 (1)
|
Pak Mong Village Watch Tower
|
Rooftop of
the premise
|
|
ASR 8A (1)
|
Area 4
|
On ground at
the Area 4
|
|
Note: (1)
Air Quality Monitoring Stations ASR9A and ASR9C (Siu Ho Wan MTRC Depot)
proposed in accordance with the Updated EM&A were temporarily relocated to
ASR8A and ASR8, respectively.
|
High Volume Samplers (HVSs) were
used for carrying out 1-hour and 24-hr TSP monitoring on 3, 9, 13, 19, 24 and
30 December 2013 at ASR8 (Pak Mong Village Watch
Tower) and ASR8A (Area 4) (Figure 2.1; Table 2.1) in accordance with the
requirements stipulated in the Updated EM&A Manual. Wind anemometer was installed at the
rooftop of Pak Mong Village Watch Tower for logging
wind speed and wind direction.
Details of the equipment deployed are given in Table 2.2. Copies of the calibration certificates for the equipment are presented
in Appendix E.
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 WE550
|
2.1.2
Monitoring
Schedule for the Reporting Month
The schedule for air quality monitoring in December 2013 is
provided in Appendix
F.
2.1.3
Results
and Observations
The monitoring results for 1-hour TSP and 24-hour TSP are
summarized in Tables 2.3 and
2.4 respectively.
Detailed impact air quality monitoring results are presented in Appendix G.
Table 2.3 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
|
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
ASR
8A
|
145
|
42
- 275
|
394
|
500
|
|
ASR
8
|
157
|
63
- 319
|
393
|
500
|
Table 2.4 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
|
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
ASR
8A
|
136
|
80
- 210
|
178
|
260
|
|
ASR
8
|
131
|
83
- 205
|
178
|
260
|
The major dust source in the reporting period included
construction activities under the Contract as well as nearby traffic emissions.
All
1-hour TSP results were below the Action and Limit level at all monitoring
locations in the reporting period.
However, two (2) exceedances of Action Level
in 24-hr TSP were detected on 13 December 2013 at both ASR8A and ASR8. Upon further investigation, the exceedances were considered not related to the construction
works of this Contract. The
Contractor was reminded to keep track of the construction activities in
compliance with the environmental requirements and implement all necessary
mitigation measure properly. Cumulative
statistics of exceedances is presented in Appendix N
The Event and Action plan is
presented in Appendix
L.
Meteorological information collected from the wind station,
including wind speed and wind direction, is provided in Appendix H.
2.2.1
Monitoring
Requirements and Equipment
In accordance with the Updated EM&A Manual, impact noise
monitoring was conducted once per week during the construction phase of the
Contract. The Action and Limit
level of the noise monitoring is provided in Appendix D.
Noise
monitoring was performed using sound level meter at the designated monitoring
station NSR 1 (Figure 2.2; Table 2.5)
in accordance with the requirements stipulated in the Updated EM&A
Manual. Acoustic calibrator was
deployed to check the sound level meters at a known sound pressure level. Details of the equipment deployed are
provided in Table 2.6. Copies of the calibration certificates
for the equipment are presented in Appendix E.
Table 2.5 Location
of Impact Noise Monitoring Station
|
Monitoring Station
|
Location
|
Description
|
Parameter
|
Frequency and Duration
|
|
NSR 1
|
Pak Mong Village Watch Tower
|
Rooftop of
the premise
|
30-mins
measurement at each monitoring station between 0700 and 1900 on normal
weekdays (Monday to Saturday). Leq, L10
and L90 would be recorded.
|
At least
once per week
|
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
Monitoring
Schedule for the Reporting Month
The schedule for construction noise monitoring in the
reporting period is provide in Appendix
F.
2.2.3
Monitoring
Results
Results for noise monitoring are summarized in Table
2.7 and the monitoring data is provided in Appendix I.
Table 2.7 Summary
of Construction Noise Monitoring Results in the Reporting Period
|
|
Average , dB(A), Leq
(30mins)
|
Range, dB(A), Leq (30mins)
|
Limit Level, dB(A), Leq
(30mins)
|
|
NSR
1
|
58
|
56
- 59
|
75
|
No noise Action Level and Limit level exceedance
was recorded at all monitoring stations in the reporting month. No action is thus required to be
undertaken in accordance with the Event Action Plan presented in Appendix L.
Major noise sources during the noise monitoring included
construction activities, nearby traffic noise and aircraft noise.
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 in accordance with the Updated EM&A Manual. The Action and Limit Level of the water
quality monitoring is provided in Appendix
D.
The locations of the monitoring stations under the Contract
are shown in Figure
2.3 and Table
2.8.
Table 2.8 Locations
of Impact Water Quality Monitoring Stations and its Corresponding Monitoring
Requirements
|
Station ID
|
Type
|
Coordinates
|
*Parameters, unit
|
Frequency
|
Depth
|
|
|
|
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)
|
Impact monitoring: 3 days per week, at mid-flood
and mid-ebb tides during the construction period of the Contract
|
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
|
|
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 summarises the equipment used in the impact water quality monitoring
programme. Copies of the
calibration certificates are attached in Appendix
E.
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
|
|
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
Monitoring
Schedule for the Reporting Month
The schedule for water quality monitoring in December 2013
is provided in Appendix
F.
2.3.3
Results
and Observations
Impact water quality monitoring was conducted at all
designated monitoring stations in the reporting month. Impact water quality monitoring results
and graphical presentations are provided in Appendix J.
No
Action and Limit level exceedance was recorded at all
monitoring stations for impact water quality monitoring in the reporting
month. No action is thus required
to be undertaken in accordance with the Event Action Plan presented in Appendix L.
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 summarises 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 and 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
|
|
13
|
Start
Point
|
816506
|
819480
|
|
1
|
End
Point
|
804671
|
831404
|
|
13
|
End
Point
|
816506
|
824859
|
|
2
|
Start
Point
|
805475
|
815457
|
|
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
|
|
19
|
Start
Point
|
822513
|
823268
|
|
7
|
End
Point
|
810499
|
824613
|
|
19
|
End
Point
|
822513
|
824321
|
|
8
|
Start
Point
|
811508
|
820847
|
|
20
|
Start
Point
|
823477
|
823402
|
|
8
|
End
Point
|
811508
|
824254
|
|
20
|
End
Point
|
823477
|
824613
|
|
9
|
Start
Point
|
812516
|
820892
|
|
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
|
|
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 Tables 2.12 & 2.13.
The Event and Action plan is presented in Appendix K.
Table 2.12 Action Level and
Limit Level for Dolphin Impact Monitoring
|
|
North Lantau
Social Cluster
|
|
|
NEL
|
NWL
|
|
Action Level
|
STG
< 70% of baseline &
ANI < 70% of baseline
|
STG
< 70% of baseline &
ANI < 70% of baseline
|
|
Limit Level
|
[STG < 40% of baseline & ANI
< 40% of baseline]
and
STG < 40% of baseline & ANI
< 40% of baseline
|
|
Notes:
1.
STG
means quarterly encounter rate of number of dolphin sightings, which is 6.00
in NEL and 9.85 in NWL during the baseline monitoring period
2.
ANI
means quarterly encounter rate of total number of dolphins, which is 22.19
in NEL and 44.66 in NWL during the baseline monitoring period
3.
For
North Lantau Social Cluster, AL will be trigger if
NEL or NWL fall below the criteria; LL will be triggered if both NEL and NWL
fall below the criteria.
|
Table 2.13 Derived Value of
Action Level (AL) and Limit Level (LL)
|
|
North Lantau Social Cluster
|
|
|
NEL
|
NWL
|
|
Action
Level
|
STG
< 4.2 & ANI< 15.5
|
STG
< 6.9 & ANI < 31.3
|
|
Limit
Level
|
[STG < 2.4 & ANI <8.9]
and
[STG < 3.9 & ANI <17.9]
|
2.4.6
Monitoring
Schedule for the Reporting Month
Dolphin monitoring was carried out on 5, 9, 13 and 19
December 2013. The dolphin
monitoring schedule for the reporting period is provided in Appendix F.
2.4.7
Results
and Observations
A total of 277.40 km of survey effort was
collected, with 83.2% of the total survey
effort being conducted under favourable weather conditions (i.e. Beaufort Sea
State 3 or below with good visibility) during the December’s surveys. Among the two areas, 98.10 km and 179.30 km of survey effort were collected from NEL and NWL survey areas respectively. The total survey effort
conducted on primary and secondary lines were 217.14 km and 60.26 km respectively. The survey efforts are summarized in Appendix K.
A
total of eight groups
of thirty-three dolphins sightings were recorded
during the two sets
of surveys. All
except one sighting were made in NWL during the two sets of surveys in December,
with another group being sighted in NEL.
None
of the 33
sightings was made in the proximity of this Project. The distribution of dolphin sightings
during the reporting month is shown in Figure 2.5.
Encounter
rates of Chinese White Dolphins are deduced from the survey effort and on-effort
sighting data made under favourable conditions
(Beaufort 3 or below with good visibility) in December 2013 with the results
presented in Tables 2.14 and 2.15.
Table 2.14 Individual Survey
Event Encounter Rates
|
|
|
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: Dec
5th/ 9th
|
2.68
|
8.05
|
|
|
Set 2: Dec
13th/ 19th
|
0.0
|
0.0
|
|
NWL
|
Set 1:
Dec 5th/ 9th
|
6.95
|
30.57
|
|
|
Set 2:
Dec 13th/19th
|
6.82
|
27.27
|
Table 2.15 Monthly Average
Encounter Rates
|
|
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
|
Both Primary and Secondary
Lines
|
Primary Lines Only
|
Both Primary and Secondary
Lines
|
|
Northeast Lantau
|
1.4
|
1.0
|
4.1
|
3.1
|
|
Northwest Lantau
|
6.9
|
5.3
|
29.6
|
22.6
|
Note: Overall dolphin encounter rates (sightings per 100km
of survey effort) from all four surveys are conducted in December 2013 on
primary lines only as well as both primary lines and secondary lines in
Northeast and Northwest Lantau
The average group
size of Chinese White Dolphins in December 2013 was 4.13 individuals per
group. Six of the eight dolphin
groups were composed of only 1-4 animals, while the other two were larger
groups with six (6) and twelve (12) animals per group respectively.
During this month of
dolphin monitoring, no unacceptab impact from the
construction activities of the TM-CLKL Southern Connection Viaduct Section on
Chinese White Dolphins was noticeable from general observations
Due to monthly
variation in dolphin occurrence within the Study area, it would be more
appropriate to draw conclusion on whether any unacceptable impacts on dolphins
have been detected related to the construction activities of the TM-CLKL
Southern Connection Viaduct Section in the quarterly EM&A reports, where
comparison on distribution, group size and encounter rates of dolphins between
the quarterly impact monitoring period and baseline monitoring period will be
made.
2.4.8
Marine
Mammal Exclusion Zone Monitoring
Daily 250 m marine
mammal exclusion zone monitoring was undertaken during the period of dredging
activities being undertaken. No sighting of the Indo-Pacific
humpback dolphin Sousa chinensis were
recorded in December 2013 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.
In the reporting month, four (4) site inspections were carried out on 4,
11, 18 and 27 December 2013.
Key observations during the site inspections are described below:
Air Quality
Dust emission from generator in works area.
Noise
No adverse observation was identified in the reporting
month.
Water Quality
No adverse observation was identified in the reporting
month.
Chemical and Waste Management
Floating
debris and trash were observed within the silt curtain.
Stagnant
water was found accumulating in drip tray.
Stockpiles
were not covered properly by tarpaulin sheet.
Landscape and Visual Impact
No adverse observation was identified in the reporting month.
Miscellaneous
The
Environmental Permit was displayed at the site entrance.
The
Contractor has rectified all observations identified during environmental site
inspection in the reporting month. Follow-up
inspections on the status on provision of mitigation measures will be conducted
to ensure all identified items are mitigated properly.
The Contractor had submitted application form for
registration as chemical waste producer under the Contract. Sufficient numbers of receptacles were
available for general refuse collection and sorting.
As advised by the Contractor, 135 m3 of inert
C&D Materials are generated and disposed of in the reporting period and 94
m3 of inert C&D Materials are disposed of as public fill. 28.04 tonnes
of general refuse were generated and disposed of in the reporting period. Monthly summary of waste flow table is
detailed in Appendix
M.
The Contractor is 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 is reminded to properly maintain the site tidiness and
dispose of the wastes accumulated on site regularly and properly.
The Contractor is reminded that chemical waste containers
should be properly treated and stored temporarily in designated chemical waste
storage area on site in accordance with the Code of Practice on the Packaging,
Labelling and Storage of Chemical Wastes.
The status of
environmental licensing and permit is summarized in Table 2.16 below.
Table 2.16 Summary of Environmental Licensing and
Permit Status
|
Statutory Reference
|
License/
Permit
|
License
or Permit No.
|
Date
of Issue
|
Date
of Expiry
|
License/ Permit Holder
|
Remarks
|
|
EIAO
|
Environmental Permit
|
EP-354/2009/A
|
8 Dec 2010
|
NA
|
HyD
|
Tuen Mun- Chek Lap Kok Link
|
|
NCO
|
Construction Dust Notification
|
361571
|
5 Jul 2013
|
NA
|
GCL
|
-
|
|
NCO
|
Construction Dust Notification
|
362093
|
17 Jul 2013
|
NA
|
GCL
|
Areas 2 and 3
|
|
WDO
|
Billing Account for Disposal
|
7017735
|
10 Jul 2013
|
End of Project
|
GCL
|
-
|
|
WDO
|
Chemical Waste Registration
|
5213-961-G2380-13
|
10 Oct 2013
|
NA
|
GCL
|
Chemical waste produced in Contract HY/2012/07
|
|
WDO
|
Chemical Waste Registration
|
5213-961-G2380-14
|
10 Oct 2013
|
NA
|
GCL
|
Chemical waste produced in Contract HY/2012/07
|
|
WDO
|
Chemical Waste Registration
|
5213-974-G2588-03
|
4 Nov 2013
|
NA
|
GCL
|
Chemical waste produced in Contract HY/2012/07
|
|
WDO
|
Construction Waste Disposal Account
|
7017735
|
10 Jul 2013
|
NA
|
GCL
|
Waste disposal in Contract HY/2012/07
|
|
WPCO
|
Waste Water Discharge License
|
Nil
|
Application Ref. 368337
|
NA
|
GCL
|
Discharge for discharge points for Viaduct A & B
|
|
NCO
|
Construction Noise Permit
|
Nil
|
Application in process
|
NA
|
GCL
|
For Piling Works
|
|
NCO
|
Construction Noise Permit
|
GW-RW0660-13
|
27 Sep 2013
|
02 Feb 2014
|
GCL
|
For night works and works in general
holidays
|
|
NCO
|
Construction Noise Permit
|
GW-RS1129-13
|
31 Oct 2013
|
30 Apr 2014
|
GCL
|
For night works and works in general
holidays
|
|
NCO
|
Construction Noise Permit
|
GW-RS1186-13
|
23 Oct 2013
|
24 Dec 2013
|
GCL
|
For night works and works in general
holidays
|
|
NCO
|
Construction Noise Permit
|
GW-RS1187-13
|
24 Oct 2013
|
28 Feb 2014
|
GCL
|
For night
|
|
NCO
|
Construction Noise Permit
|
GW-RW0925-13
|
11 Dec 2013
|
17 Apr 2014
|
GCL
|
Renewal of Area 5 site office erection
|
|
NCO
|
Construction Noise Permit
|
GW-RS1423-13
|
11 Dec 2013
|
30 Apr 2014
|
GCL
|
Renewal for marine portion
|
|
NCO
|
Construction Noise Permit
|
GW-RS1413-13
|
18 Dec 2013
|
26 Mar 2014
|
GCL
|
For loading and unloading on NLH near viaduct A & B
|
|
DASO
|
Dumping Permit/ Loading Permit (Type 1 – Open Sea Disposal)
|
(4) in EP/MD/14-075
|
25 Sep 2013
|
NA
|
GCL
|
-
|
In response to the site audit findings, the Contractors
carried out corrective actions.
A summary of the Implementation Schedule of Environmental
Mitigation Measures (EMIS) is presented in Appendix C. The necessary
mitigation measures were implemented properly for this Contract.
Two (2) exceedance of Action Level
for 24-hr TSP at both ASR8A and ASR8 was recorded in the reporting month. The exceedances
were considered not related to the construction works of this Contract after
further investigation.
Results for 1-hour TSP monitoring, construction noise
monitoring and impact water quality monitoring complied with the Action/ Limit
levels in the reporting period.
Cumulative statistics on exceedances
is provided in Appendix
N.
The Environmental Complaint Handling Procedure is provided
in Figure 2.6.
No complaints, notification of summons and prosecution were
received in the reporting period.
Statistics on complaints, notifications of summons and successful
prosecutions are summarized in Appendix
N.
3
Future Key Issues
As informed by the Contractor, the major works for the
Contract in January and February 2014 will be:
Marine
Works
· Erect
temporary working platforms;
· GI
and trial pit works for marine foundation at Viaduct B; and
· Marine
foundation at Viaduct B, E2, E5-8 and E13.
Land-based Works
· Site
set-up for Area 2 and works area along Cheung Tung Road for Viaduct B;
· Set
up container site offices along CEDD access road; and
· Construct
temporary road at CEDD track for piling.
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of January 2014 are mainly associated with dust,
noise, marine water quality, marine ecology and waste management issues.
The tentative schedule for environmental monitoring in
January 2014 is provided in Appendix
F.
4
Conclusions and recommendations
This second
Monthly EM&A Report presents the findings of the EM&A activities
undertaken during the period from 1 to 31 December 2013, in accordance with the
Updated EM&A Manual and the requirements of EP-354/2009/A.
Air quality (including 1-hour TSP and 24-hour TSP), noise, water
quality and dolphin monitoring were carried out in the reporting period. Two (2) exceedanced
of Action Levels for 24-hr TSP were recorded in this reporting month. The review of monitoring data and works activities
undertaken suggested that the exceedance
was not due to the Contract works.
Nevertheless, the Contractor was reminded to
ensure all dust mitigation measures are provided at the construction site.
Results for noise, 1-hr TSP monitoring and impact water quality
monitoring complied with the Action/ Limit levels in the reporting period.
A total of
eight
(8) groups of thirty-three
(33) dolphins sighting were recorded during the two sets of
surveys. All except one
sighting were made in NWL during the two sets of surveys with one sighting made
in NEL in December 2013. None of
the 33
sightings was made in the proximity of the TM-CLKL Southern Connection Viaduct
Section. During this
reporting period of dolphin monitoring, no unacceptable impact from the
construction activities of the TM-CLKL Southern
Connection Viaduct Section on Chinese White Dolphins was noticeable from general
observations.
Environmental site inspection was carried out four (4) times in
December 2013. Recommendations on
remedial actions were given to the Contractor for the deficiencies identified
during the site audits.
No environmental complaint, notification of summons and prosecution
were received in the reporting month.
According to the environmental site inspections performed in
the reporting month, the following recommendations were provided:
Air
Quality Impact
· All
working plants and vessels on site should be regularly inspected and properly
maintained by the Contractor to avoid dark smoke emission.
· Open
stockpiles should be properly covered by the Contractor.
· The
Contractor should provide water spraying to suppress fugitive dust for any
dusty construction activity.
Construction
Noise Impact
· Vessels
and equipment operating should be checked regularly and properly maintained by
the Contractor.
Water Quality
Impact
· The
Contractor should regularly review and maintain drainage systems to make sure
they are functioning effectively.
· Proper
drainage channels, bunds and set-up should be provided by the Contractor at the
site to collect/ intercept the surface run-off or waste water generated from
works area to ensure no direct discharge from site to surrounding water bodies.
Chemical and
Waste Management
· All
types of wastes should be collected and sorted accordingly and removed timely
by the Contractor. They should be
properly stored in designated areas within the works areas temporarily.
· All
plants and vehicles on site should be properly maintained by the Contractor and
drip trays should be provided where appropriate to prevent oil leakage.
· All
drain holes of the drip trays within the works areas should be properly plugged
by the Contractor to avoid any oil and chemical waste leakage.
· Oil
stains on soil surface should be cleared and disposed of as chemical waste by
the Contractor.
· Floating
debris and trash observed within the silt curtain and around the working barge
should be collected as far as possible to maintain the cleanliness of the
surrounding sea.