Table of Contents
excutive
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
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. Further applications
for variation of environmental permit (VEP), EP-354/2009/B and
EP-354/2009/C, were granted on 28 January 2014 and 10 December 2014,
respectively.
The construction phase of the Contract commenced on 31
October 2013 and will 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 Sixteenth Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 28 February
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:
Marine
Works
·
Construction of Pile caps at Viaducts B, C & E;
·
Marine piling platform installation &
uninstallation;
·
Marine Piling at Viaducts C & E; and
·
Additional marine ground investigation (GI) and
laboratory testing.
Land-based
Works
·
Construction of pile cap superstructure of Viaduct B
& C;
·
Channel re-construction at Area 1;
·
Land Piling at Viaducts B, C & D;
·
Pre-drilling works at Viaduct A;
·
Construction of pile cap at Viaducts B & D;
·
Additional land GI, trial pits & lab testing;
·
Utility surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 &
9SE-B/F9.
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 10
sessions
Impact Dolphin
Monitoring 2
sessions
Joint
Environmental site inspection 4
sessions
Breaches of Action and Limit Levels for Air Quality
No exceedance
of Action and Limit Levels was recorded for construction air monitoring in the
reporting month.
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
Whilst
one (1) Limit Level exceedance was observed for the quarterly dolphin
monitoring data between December 2014 and February 2015, 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 during the period of
marine works under this Contract. Passive Acoustic Monitoring (PAM) was implemented
when the marine works were carried out outside the daylight hours in this
reporting month. No sighting of the Indo-Pacific humpback dolphin Sousa chinensis
(i.e. Chinese White Dolphin) was recorded in February 2015 during the exclusion
zone monitoring.
Environmental Complaints, Non-compliance & Summons
No
environmental 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 March 2015 include the following:
Marine
Works
·
Construction of Pile caps at Viaducts B, C & E;
·
Marine piling platform installation &
uninstallation;
·
Marine Piling at Viaducts A, C & E; and
·
Additional marine ground investigation (GI) and
laboratory testing.
Land-based
Works
·
Construction of pile cap superstructure of Viaduct B;
·
Channel re-construction at Area 1;
·
Land Piling at Viaducts B, C & D;
·
Pre-drilling works at Viaduct A;
·
Construction of pile cap at Viaducts B & D;
·
Additional land GI, trial pits & lab testing;
·
Utility surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 &
9SE-B/F9.
Future Key Issues
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of March 2015 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-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-354/2009/A)
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. Further applications for variation of
environmental permit (VEP), EP-354/2009/B
and EP-354/2009/C, were granted
on 28 January 2014 and 10 December 2014, respectively.
The construction phase of the Contract
commenced on 31 October 2013 and will be tentatively 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 Sixteenth 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 February 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
|
|
HyD
(Highways Department)
|
Project
Coordinator
|
Stanley Chan
|
2762 3406
|
3188 6614
|
|
|
Senior
Engineer
|
Steven Shum
|
2762 4133
|
3188 6614
|
|
SOR
(AECOM Asia
Company Limited)
|
Chief
Resident Engineer
|
Daniel Ip
|
3553 3800
|
2492 2057
|
|
|
Resident
Engineer
|
Kingman Chan
|
3691 3950
|
3691 2899
|
|
ENPO / IEC
(ENVIRON
Hong Kong Ltd.)
|
ENPO Leader
|
Y.H. Hui
|
3465 2888
|
3465 2899
|
|
IEC
|
Dr. F.C.
Tsang
|
3465 2828
|
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
|
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 month are
listed below:
Marine
Works
·
Construction of Pile caps at Viaducts B, C & E;
·
Marine piling platform installation &
uninstallation;
·
Marine Piling at Viaducts C & E; and
·
Additional marine ground investigation (GI) and
laboratory testing.
Land-based
Works
·
Construction of pile cap superstructure of Viaduct B
& C;
·
Channel re-construction at Area 1;
·
Land Piling at Viaducts B, C & D;
·
Pre-drilling works at Viaduct A;
·
Construction of pile cap at Viaducts B & D;
·
Additional land GI, trial pits & lab testing;
·
Utility surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 &
9SE-B/F9.
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.
The environmental mitigation
measures implementation schedule are presented in Appendix
C.
Figure 1.3 Locations
of Construction Activities in the Reporting Month
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 Levels of the air
quality monitoring is provided in Appendix D.
Table 2.1 Locations
of Impact Air Quality Monitoring Stations
|
Monitoring Station
|
Location
|
Description
|
Monitoring Dates
|
|
ASR 9
|
MTR Depot
|
On the
ground nearby MTR Depot Entrance
|
3, 9, 12, 17,
23 and 26 February 2015
|
|
ASR 8A
|
Area 4
|
On ground at
the works area, Area 4
|
3, 9, 12,
17, 23 and 26 February 2015
|
High Volume Samplers (HVSs) were used for carried out 1-hour and 24-hour
TSP monitoring on 3, 9, 12, 17, 23 and 26 February 2015 at ASR8A and ASR9 in
accordance with the requirements of the Updated EM&A Manual. The TSP monitoring stations are
illustrated in Figure 2.1 and detailed
in Table 2.1. Wind anemometer was deployed at Area 4
for logging wind speed and wind direction.
Copies of the calibration certificates for the
equipment are presented in Appendix E.
Details of the deployed equipment are given in Table 2.2.
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
Monitoring Schedule for the Reporting Month
The schedule for air quality
monitoring in February 2015 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
|
Monitoring Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
ASR
8A
|
118
|
68
- 211
|
394
|
500
|
|
ASR
9
|
132
|
68
- 241
|
393
|
500
|
Table 2.4 Summary
of 24-hour TSP Monitoring Results in the Reporting Period
|
Monitoring Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
ASR
8A
|
72
|
54
– 104
|
178
|
260
|
|
ASR
9
|
89
|
51
– 117
|
178
|
260
|
The major dust sources in the
reporting period included construction activities under the Contract as well as
nearby traffic emissions.
All
1-hour and 24-hour TSP results were below the Action and Limit levels at all
monitoring locations in the reporting period. No action is thus required to be
undertaken in accordance with the Event Action Plan presented in Appendix L.
Meteorological
information collected at ASR8A 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 on 3, 9, 12, 17, 23 and 26
February 2015 by using sound level meter at the designated monitoring
station NSR1A (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 deployed equipment 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
|
Monitoring Dates
|
|
NSR 1A
|
Pak Mong Village Pavilion
|
On the
ground at the village entrance
|
30-minute
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
|
3, 9, 12, 17, 23 and 26 February 2015
|
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 provided in Appendix F.
2.2.3
Results and Observations
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
1A
|
60
|
56
– 61
|
75
|
|
|
|
|
|
No noise Action Level and
Limit level exceedance was recorded 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 noise from crane operation and excavation works,
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 Levels of the water quality monitoring are 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 and Salinity
|
YSI Pro2030
|
|
Turbidity meter
|
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 February 2015 is provided in Appendix
F.
2.3.3
Results and Observations
In total of 10 monitoring
events for impact water quality monitoring were conducted at all designated
monitoring stations in the reporting month. Impact water quality monitoring results
and graphical presentations are provided in Appendix
J. No impact water quality monitoring was
conducted on 19 and 21 February 2015 due to the suspension of marine works.
Although
some results of depth-averaged SS were recorded higher than the values of
Action Level or Limit Level in the monitoring period, the results were not
higher than 120% of the upstream control at the same tide of the same day. Thus the results were considered as natural
variation. No Action and Limit
levels exceedances 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 Appendix D. The Event and Action plan is presented
in Appendix L.
2.4.6
Monitoring Schedule for the Reporting Month
Dolphin monitoring was
carried out on 5, 13, 16 and 25 of February 2015 (Appendix
F).
2.4.7
Results and Observations
A total of 298.01 km of
survey effort was collected, with 100% of the total survey effort being
conducted under favourable weather conditions (i.e.
Beaufort Sea State 3 or below with good visibility) during the survey of February. Among the two areas, 115.15 km and
182.86 km of survey effort were collected from NEL and NWL survey areas
respectively. The total survey
effort conducted on primary and secondary lines were 214.26 km and 83.75 km
respectively. The survey efforts
are summarized in Appendix K.
Only
one (1) group of a single dolphin was sighted during the two sets of monitoring
surveys in February 2015. This single
sighting was made in NWL during the two sets of surveys in February while no
dolphin was sighted at all in NEL.
The single sighting was made on primary lines during on-effort search,
and it was not associated with operating fishing vessel. No sighting was
made in the proximity of the Project’s alignment. The
distribution of dolphin sighting 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) in February 2015
are shown in Tables 2.12 and 2.13.
Table 2.12 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: Feb 5th / 13th
|
0.0
|
0.0
|
|
Set 2: Feb 16th / 25th
|
0.0
|
0.0
|
|
NWL
|
Set 1: Feb 5th / 13th
|
1.4
|
1.4
|
|
Set 2: Feb 16th / 25th
|
0
|
0
|
|
Note: Dolphin Encounter Rates are deduced
from the two sets of surveys ( two surveys in each set) in February 2015 in
Northeast (NEL) and Northwest Lantau (NWL)
|
Table 2.13 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
|
0.0
|
0.0
|
0.0
|
0.0
|
|
Northwest Lantau
|
0.7
|
0.5
|
0.7
|
0.5
|
Note:
Overall dolphin encounter rates (sightings per 100km of survey effort)
from all four surveys are conducted in February 2015 on primary lines only as
well as both primary lines and secondary lines in Northeast and Northwest
Lantau
Whilst one (1) Limit Level exceedance was observed for
the quarterly dolphin monitoring data between December 2014 and February 2015. 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 month.
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.
2.4.8
Marine Mammal Exclusion Zone Monitoring
Daily 250 m marine
mammal exclusion zone monitoring was undertaken during the period of marine
works activities being undertaken. Passive
Acoustic Monitoring (PAM) was implemented when the marine works marine works were
carried out outside the daylight hours in this reporting month. No sighting of Indo-Pacific humpback
dolphin Sousa chinensis
(i.e. Chinese White Dolphin) were recorded in February 2015 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, 13, 17 and 26 February 2015.
Key observations during the
site inspections are summarized in Table
2.14.
Table 2.14 Specific
Observations Identified during the Weekly Site Inspections in this Reporting
Month
|
Inspection
Date
|
Environmental
Observations
|
Recommendations/
Remarks
|
|
4 February 2015
|
Area 1
·
The ground was dry.
·
Washing facility at the entrance was incomplete.
·
Soil stockpile was not covered.
·
Refuse was accumulated in drainage.
·
A drip tray for generator was not plugged.
|
Area 1
·
The contractor was reminded to implement the
watering programme for dust suppression.
·
Wheel washing should be provided at the entrance.
·
Soil stockpile should be covered by tarpaulin sheet
or wet to avoid dust emission.
·
Drainage should be cleaned up regularly.
·
Drip trays should be plugged.
|
|
13 February 2015
|
Pier D5
·
A generator was not well placed on acoustic
decoupling pad.
Pier B1
·
Sediment was accumulated in the gutter.
Barge Tung Shun 88 (next to Pier D2)
·
Label for marine sediment was not displayed.
Pier B2
·
A part of gutter was not properly installed.
|
Pier D5
·
Machine on marine platform should be well placed on decoupling
pad.
Pier B1
·
Gutter should be cleaned regularly.
Barge Tung Shun 88 (next to Pier D2)
·
Label for marine sediment should be displayed.
Pier B2
·
Gutter should be properly installed.
|
|
17 February 2015
|
Seafront near Pier B8
·
A drip tray for generator was not plugged.
Pier D12A
·
Some chemical containers were not placed in drip
tray.
·
Grouting material was found not covered.
Pier D10
·
Sandbags were found insufficient to avoid waste
water discharging offsite.
|
Seafront
near Pier B8
·
Drip trays should be plugged.
Pier D12A
·
Chemical containers should be covered and placed in
drip tray.
·
Stockpile of grouting material should be covered.
Pier D10
·
Sufficient sandbags should be provided to avoid any
runoff of waste water.
|
|
26 February 2015
|
Pier C1
·
Gutter was not properly installed.
|
Pier C1
·
Gutter should be properly installed to ensure no
waste water runoff from platform.
|
The Contractor
has rectified all of the observations identified during environmental site
inspections in the reporting month.
2.6
Waste
Management Status
The Contractor
has submitted application form for registration as chemical waste producer
under the Contract. Sufficient
numbers of receptacles were available for general refuse collection and
sorting.
Wastes
generated during this reporting period include mainly construction wastes
(inert and non-inert), recyclable materials, chemical waste and marine sediment
(Categories L & M). Reference
has been made to the waste flow table prepared by the Contractor (Appendix M).
The quantities of different types of wastes are summarized in Table 2.15.
Table 2.15 Quantities
of Different Waste Generated in the Reporting Period
|
Month/Year
|
Inert C&D Materials (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
(Mp
& Mf)
|
|
February 2015
|
5,759
|
0
|
436
|
141,020
|
112
|
400
|
801
|
333
|
|
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, felled trees
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 2.16 below.
Table 2.16 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/C
|
10 Dec 2014
|
N/A
|
HyD
|
Tuen Mun- Chek Lap Kok Link
|
|
Construction Dust Notification
|
361571
|
5 Jul 2013
|
N/A
|
GCL
|
|
|
Construction Dust Notification
|
362093
|
17 Jul 2013
|
N/A
|
GCL
|
For Area 23
|
|
Chemical Waste Registration
|
5213-961-G2380-13
|
10 Oct 2013
|
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 2013
|
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 2013
|
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 2014
|
N/A
|
GCL
|
Viaducts A, B, C, D & E
|
|
Construction Waste Disposal Account
|
7017735
|
10 Jul 2013
|
N/A
|
GCL
|
-
|
|
Construction Waste Disposal Account
|
7019470
|
3 Mar 2014
|
N/A
|
GCL
|
Vessel CHIT Account
|
|
Waste Water Discharge License
|
WT00019017-2014
|
13 May 2014
|
31 May 2019
|
GCL
|
Discharge for marine portion
|
|
Waste Water Discharge License
|
WT00019018-2014
|
13 May 2014
|
31 May 2019
|
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-RW0640-14
|
28 Aug 2014
|
27 Feb 2015
|
GCL
|
General works at WA5
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1032-14
|
25 Sep 2014
|
28 Mar 2015
|
GCL
|
For Load unload at NLH near Viaduct D
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0078-15
|
28 Jan 2015
|
29 Jul 2015
|
GCL
|
For Plant mobilization using tractor
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1225-14
|
31 Oct 2014
|
2 May 2015
|
GCL
|
For Broad Permit
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1386-14
|
15 Dec 2014
|
15 Mar 2015
|
GCL
|
TTA Case 009 Ch.2.3E-4.2E
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1406-15
|
24 Feb 2015
|
30 Apr 2015
|
GCL
|
B9-B16 Pier Head Segments Erection
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0137-15
|
12 Feb 2014
|
15 Aug 2015
|
GCL
|
Pre-casted pile cap shell installation at E10-E13
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0084-15
|
28 Jan 2015
|
30 Apr 2015
|
GCL
|
Pier B8 formwork erection
|
|
Marine
Dumping Permit
|
EP/MD/15-203
|
28 Jan 2015
|
27 Jul 2015
|
GCL
|
For dumping Type I sediment
|
|
Marine
Dumping Permit
|
EP/MD/15-234
|
27 Feb 2015
|
31 Mar 2015
|
GCL
|
For dumping
Type I (Dedicated Site) and Type II sediment
|
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.
Results for 1-hour TSP,
24-hour TSP, construction noise and impact water quality monitoring complied with
the Action/ Limit levels in the reporting period.
One (1) Limit Level
exceedance was recorded for the quarterly dolphin monitoring data between December
2014 and February 2015. The
observed exceedances will be further investigated in the Fifth Quarterly EM&A Report for December 2014 to February
2015.
Cumulative statistics on exceedances is
provided in Appendix N.
The Environmental Complaint Handling Procedure
is provided in Figure 2.6.
No complaint,
notification of summons and prosecution was received in the reporting period.
Statistics on
complaints, notifications of summons, successful prosecutions are summarized in
Appendix N.
3
Future Key Issues
As informed by the
Contractor, the major works for this Contract in March 2015 will be:
Marine
Works
·
Construction of Pile caps at Viaducts B, C & E;
·
Marine piling platform installation & uninstallation;
·
Marine Piling at Viaducts A, C & E; and
·
Additional marine ground investigation (GI) and
laboratory testing.
Land-based
Works
·
Construction of pile cap superstructure of Viaduct B;
·
Channel re-construction at Area 1;
·
Land Piling at Viaducts B, C & D;
·
Pre-drilling works at Viaduct A;
·
Construction of pile cap at Viaducts B & D;
·
Additional land GI, trial pits & lab testing;
·
Utility surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 &
9SE-B/F9.
3.2
Key
Issues for the Coming Month
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of March 2015 are mainly associated with dust,
noise, marine water quality, marine ecology and waste management issues.
The tentative schedules for
environmental monitoring in March 2015 are provided in Appendix
F.
4
Conclusions and
recommendations
This Sixteenth
Monthly EM&A Report presents the findings of the EM&A activities
undertaken during the period from 1 to 28 February 2015, in accordance with the
Updated EM&A Manual and the requirements of the Environmental Permit (EP-354/2009/C).
Air quality (including 1-hour TSP
and 24-hour TSP), noise, water quality, and dolphin monitoring were carried out
in the reporting month. Results for
water quality monitoring, 1-hour TSP, 24-hour TSP and noise monitoring complied
with the Action and Limit levels in the reporting period.
Only one (1) group
of a single dolphin was sighted during the two sets of monitoring surveys in
February 2015. This single sighting
was made in NWL during the two sets of surveys in February while no dolphin was
sighted at all in NEL. No sighting
was made in the proximity of the Project’s alignment. One (1) Limit Level exceedances was observed for the
quarterly dolphin monitoring data between December 2014 and February 2015. 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.
Environmental site inspection was
carried out four (4) times in February 2015. Recommendations on remedial actions were
given to the Contractor for the deficiencies identified during the site audits.
No environmental complaint,
notification of summons or prosecution was received in the reporting month.
The ET will
keep track on the construction works to confirm compliance of environmental
requirements and the proper implementation of all necessary mitigation
measures.