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 southern landfall
of TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong
Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by
Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and
EP-354/2009/D. Upon the
agreement and confirmation between the Supervising Officer Representatives and
Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of the
reclamation area for southern landfall under EP-353/2009/K and
EP-354/2009/D was handed-over to Contract
No. HY/2012/07.
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 Tenth Quarterly EM&A Report presenting the EM&A works carried
out during the period from 1 March to 31 May 2016 for the Southern
Connection Viaduct Section in accordance with the Updated EM&A Manual of the
TM-CLK Link Project. As informed by the Contractor, major
activities in the reporting period included:
March
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
April
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Construction
of marine section of berth at Southern Landfall;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
May
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Construction
of marine section of berth at Southern Landfall;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
A
summary of monitoring and audit activities conducted in the reporting period is
listed below:
24-hour TSP monitoring 17
sessions
1-hour TSP monitoring 17
sessions
Noise
monitoring 17
sessions
Water
quality monitoring 40 sessions
Dolphin
monitoring 6
sessions
Joint
Environmental site inspection 13 sessions
Breaches of Action and Limit Levels for Air Quality
No
exceedance of Action and Limit Levels was recorded for air quality monitoring
in the reporting period.
Breaches of Action and Limit Levels for Noise
No
exceedance of Action and Limit Levels was recorded for construction noise monitoring
in the reporting period.
Breaches of Action and Limit Levels for Water Quality
No
exceedance of Action and Limit Levels was recorded for water quality monitoring
in the reporting period.
Impact Dolphin Monitoring
One
(1) Limit Level exceedance was observed for the quarterly dolphin monitoring
data between March and May 2016. No unacceptable
impact from the construction activities of the TM-CLKL Southern Connection Viaduct
Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese
White Dolphins) was noticeable from general observations during the dolphin
monitoring in this reporting quarter.
The exceedances are considered unlikely due to the works of this Project
upon further investigation.
Daily marine mammal exclusion
zone monitoring was undertaken during the period of marine works under this
Contract. No
Passive Acoustic Monitoring (PAM) was implemented as the marine piling works
were not carried out outside the daylight hours in this reporting period. No sighting of Chinese White Dolphin was
recorded in the monitoring period during the exclusion zone monitoring.
Environmental Complaints, Non-compliance & Summons
No environmental
complaint, notification of summons and successful prosecution was received in
the reporting period.
Reporting Change
There
was no reporting change in this reporting period.
Upcoming Works
for the Next Reporting Period
Works
to be undertaken in the coming quarter include the following:
June
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Construction
of marine section of berth at Southern Landfall;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
July 2016
Marine
Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
August
2016
Marine
Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
Future Key Issues
Potential
environmental impacts arising from the above upcoming construction activities
in the coming quarterly period are mainly associated with air quality, noise, marine
water quality, marine ecology and waste management issue.
1
Introduction
According
to the findings of the Northwest New Territories (NWNT) Traffic and
Infrastructure Review conducted by the Transport Department, Tuen Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be
operating beyond capacity after 2016.
This forecast has been based on the estimated increase in cross boundary
traffic, developments in the Northwest New Territories (NWNT), and possible
developments in North Lantau, including the Airport developments, the Lantau
Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic
demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek
Lap Kok Link (TM-CLKL) and Tuen
Mun Western Bypass (TMWB) are proposed.
An
Environmental Impact Assessment (EIA) of TM-CLKL (the Project) was prepared in
accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical
Memorandum of the Environmental Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the
Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report
(EIAO Register Number: AEIAR-146/2009),
an Environmental Permit (EP-354/2009)
for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4
November 2009, and EP variation (EP-354/2009A)
was issued on 8 December 2010. Further applications for variation of
environmental permit (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014
and 13 March 2015, respectively.
Under Contract
No.
HY/2012/07, Gammon Construction
Limited (GCL) is commissioned by the Highways Department (HyD)
to undertake the design and construction of the Southern Connection Viaduct
Section of TM-CLKL (“the Contract”) while AECOM Asia
Company Limited was appointed by HyD as the Supervising
Officer. For implementation of the
environmental monitoring and audit (EM&A) programme
under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the
Environmental Team (ET). Ramboll Environ Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and
Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A.
The southern landfall
of TM-CLK Link lies alongside the Hong Kong - Zhuhai - Macao Bridge Hong Kong
Boundary Crossing Facilities (HKBCF) where a reclamation area is constructed by
Contract No. HY/2010/02 under Environmental Permit No. EP-353/2009/K and
EP-354/2009/D. Upon the
agreement and confirmation between the Supervising Officer Representatives and
Contractors of HY/2010/02 and HY/2012/07 in September 2015, part of the
reclamation area for southern landfall under EP-353/2009/K and
EP-354/2009/D was handed-over to Contract
No. HY/2012/07.
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 Tenth
Quarterly EM&A Report under the Contract No. HY/2012/07 Tuen Mun – Chek
Lap Kok Link – Southern Connection Viaduct Section.
This report presents a summary of the environmental monitoring and audit
works from 1 March to 31 May 2016.
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 March to May 2016 is shown in Appendix B.
As informed by
the Contractor, details of the major works carried out in this reporting period
are listed below:
March
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
April
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Construction
of marine section of berth at Southern Landfall;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
May
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Construction
of marine section of berth at Southern Landfall;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
The locations
of the construction activities are shown in Figure 1.3. The
Environmental Sensitive Receivers in the vicinity of the Project are shown in Figure 1.4.
Figure 1.3 Locations of Construction Activities in
the Reporting Period
The environmental
mitigation measures implementation schedule is presented in Appendix
C.
The
EM&A programme required environmental monitoring
for air quality, noise, water quality and marine ecology as well as
environmental site inspections for air quality, noise, water quality, waste
management, marine ecology and landscape and visual impacts. The EM&A requirements and related
findings for each component are described in the following sections, which
include:
· Monitoring
parameters;
· Monitoring
schedules for the reporting months and forthcoming months;
· Action
and Limit levels for all environmental parameters;
· Event
Action Plan;
· Results
and observations;
· Environmental
mitigation measures, as recommended in the approved EIA Report; and
· Environmental
requirement in contract documents.
2
EM&A
RESULTS
The
EM&A programme required environmental monitoring
for air quality, noise, water quality and marine ecology as well as environmental
site inspections for air quality, noise, water quality, waste management,
marine ecology and landscape and visual impacts. The EM&A requirements and related
findings for each component are summarized in the following sections.
The
baseline air quality monitoring undertaken by the HZMB Projects during October
2011 included the two monitoring stations ASR9A and ASR9C for this Project. Thus, the baseline monitoring results and
Action/Limit Level presented in HZMB Baseline Monitoring Report () are adopted
for this Project.
2.1.1
Monitoring Requirements and Equipment
In accordance
with the Updated EM&A Manual, impact 1-hour TSP
monitoring was conducted three (3) times every six (6) days while the highest
dust impact was expected. Impact 24-hour
TSP monitoring was carried out once every six (6) days. The Action and Limit Levels of the air
quality monitoring is provided in Appendix D.
1-hour TSP and 24-hour TSP monitoring were
conducted at 2 alternative air quality monitoring stations, ASR8A (Area 4) and
ASR9 (entrance of MTR Depot) during the reporting period in accordance with the
requirement of the Updated EM&A Manual.
The monitoring stations are indicated in Figure 2.1
and details are presented in Table 2.1.
High Volume Samplers (HVSs) were used for carrying
out 1-hour and 24-hour TSP monitoring during the reporting period. The HVSs meets all requirements of the Updated
EM&A Manual. Brand and model of the
equipment are given in Table 2.2.
Wind
data monitoring equipment was installed at Area 4 during the reporting period for
logging wind speed and wind direction. The
wind sensor was setup such that it was clear of obstructions or turbulence
caused by building. The wind data
monitoring equipment is recalibrated at least once every six months.
Table 2.1 Locations of Impact Air Quality
Monitoring Stations and Monitoring Dates in this Reporting Period
|
Monitoring
Station (1)
|
Monitoring Period
|
Location
|
Description
|
Parameters
& Frequency
|
|
ASR8A
|
3, 9, 15,
21, 24 and 30 March 2016;
5, 11, 14,
20, 26 and 29 April 2016;
5, 11, 17,
23 and 27 May 2016
|
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 Twenty-ninth to Thirty-first Monthly EM&A Reports.
Table 2.3 Summary of 1-hour TSP Monitoring Results
in this Reporting Period
|
Month
|
Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
March 2016
|
ASR 8A
|
129
|
58 - 259
|
394
|
500
|
|
ASR 9
|
106
|
65 – 182
|
393
|
500
|
|
April 2016
|
ASR
8A
|
100
|
44 - 224
|
394
|
500
|
|
ASR
9
|
86
|
62 – 129
|
393
|
500
|
|
May 2016
|
ASR 8A
|
82
|
44 - 187
|
394
|
500
|
|
ASR 9
|
95
|
62 - 146
|
393
|
500
|
Table 2.4 Summary of 24-hour TSP Monitoring Results in this Reporting
Period
|
Month
|
Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
March
2016
|
ASR 8A
|
76
|
59 – 112
|
178
|
260
|
|
ASR 9
|
73
|
56 – 111
|
178
|
260
|
|
April
2016
|
ASR
8A
|
57
|
43 – 81
|
178
|
260
|
|
ASR
9
|
59
|
51 – 73
|
178
|
260
|
|
May
2016
|
ASR 8A
|
55
|
44 – 71
|
178
|
260
|
|
ASR 9
|
60
|
50 – 73
|
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 17 monitoring events were undertaken within
the reporting period, in which no Action or Limit Level exceedance for 1-hour
and 24-hour TSP for air quality was recorded during the reporting period.
The
baseline noise monitoring undertaken by the HZMB Projects during the period of
18 October to 1 November 2011 included the monitoring station NSR1 for this Project. Thus, the baseline monitoring results and
Action/ Limit Level presented in HZMB
Baseline Monitoring Report ()
are adopted for this Project.
2.2.1
Monitoring Requirements and Equipment
In
accordance with the Updated EM&A Manual, impact noise monitoring should be
conducted once per week during the construction phase of the Contract.
Noise
monitoring was conducted at the alternative noise monitoring station, NSR1A
(Pak Mong Village Pavilion) during the reporting
period in accordance with the requirement of Updated EM&A Manual. Figure 2.2 shows the
location of the monitoring station. Table 2.5 describes the details of the
monitoring station.
Noise
monitoring was performed 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
|
3, 9, 15,
21, 24 and 30 March 2016;
5, 11, 14,
20, 26 and 29 April 2016;
5, 11, 17, 23 and 27 May 2016
|
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 Twenty-ninth to Thirty-first Monthly EM&A Reports.
Table 2.7 Summary
of Construction Noise Monitoring Results at NSR1A in the Reporting Period
|
Month
|
Average , dB(A), Leq (30mins)
|
Range, dB(A), Leq (30mins)
|
Limit Level, dB(A), Leq (30mins)
|
|
March 2016
|
59
|
58 - 61
|
75
|
|
April 2016
|
59
|
58 - 61
|
75
|
|
May 2016
|
60
|
59 - 61
|
75
|
A total of 17 monitoring events were undertaken in the
reporting period with no Action Level and Limit Level exceedance recorded at the
monitoring station in the reporting period. No action is thus required to be undertaken in
accordance with the Event Action Plan presented in Appendix J.
Major noise sources during the noise monitoring
included construction activities, nearby traffic noise and aircraft noise.
The
baseline water quality monitoring undertaken by the HZMB Projects between 6 and
31 October 2011 included all monitoring stations except SR4a for the
Project. Thus, the baseline monitoring
results except for station SR4a and Action/Limit Level presented in HZMB
Baseline Monitoring Report ()
are adopted for this Project. Baseline
water quality monitoring was conducted at station SR4a from 29 August to 24
September 2013.
2.3.1
Monitoring Requirements and Equipment
Impact water
quality monitoring was carried out to ensure that any deterioration of water
quality was detected, and that timely action was taken to rectify the
situation. Impact water quality
monitoring was undertaken three days per week during the construction period at
seven water quality monitoring stations in accordance with the Updated EM&A
Manual (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
Dissolved Oxygen
(DO) (mg/L and % of
saturation)
·
Suspended Solid
(SS) (mg/L)
|
3 water depths:
1m
below sea
surface,
mid-depth and 1m
above sea bed. If the water depth is less than 3m,
mid-depth sampling only. If water
depth less than 6m, mid-depth may be omitted.
|
Impact monitoring: 3 days per week, at mid-flood
and mid-ebb tides during the construction period of the Contract.
|
|
IS(Mf)16
|
Impact Station
(Close to HKBCF construction site)
|
814328
|
819497
|
|
IS8
|
Impact Station(Close
to HKBCF construction site)
|
814251
|
818412
|
|
SR4
|
Sensitive receiver
(Tai Ho Inlet)
|
814760
|
817867
|
|
SR4a
|
Sensitive receiver
|
815247
|
818067
|
|
CS(Mf)3
|
Control Station
|
809989
|
821117
|
|
CS(Mf)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
|
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.
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 Twenty-ninth
to Thirty-first Monthly EM&A Reports.
In
this reporting period, a total of 40 monitoring events were undertaken with no Action
Level and Limit Level exceedance recorded at the monitoring station in the
reporting period. No action is thus
required to be undertaken in accordance with the Event Action Plan presented in
Appendix J.
2.4.1
Monitoring Requirements
Impact
dolphin monitoring is required to be conducted by a qualified dolphin
specialist team to evaluate whether there have been any effects on the
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
|
814456
|
13
|
Start
Point
|
816506
|
819480
|
|
1
|
End
Point
|
804671
|
831404
|
13
|
End
Point
|
816506
|
824859
|
|
2
|
Start
Point
|
805475
|
815913
|
14
|
Start
Point
|
817537
|
820220
|
|
2
|
End
Point
|
805477
|
826654
|
14
|
End
Point
|
817537
|
824613
|
|
3
|
Start
Point
|
806464
|
819435
|
15
|
Start
Point
|
818568
|
820735
|
|
3
|
End
Point
|
806464
|
822911
|
15
|
End
Point
|
818568
|
824433
|
|
4
|
Start
Point
|
807518
|
819771
|
16
|
Start
Point
|
819532
|
821420
|
|
4
|
End
Point
|
807518
|
829230
|
16
|
End
Point
|
819532
|
824209
|
|
5
|
Start
Point
|
808504
|
820220
|
17
|
Start
Point
|
820451
|
822125
|
|
5
|
End
Point
|
808504
|
828602
|
17
|
End
Point
|
820451
|
823671
|
|
6
|
Start
Point
|
809490
|
820466
|
18
|
Start
Point
|
821504
|
822371
|
|
6
|
End
Point
|
809490
|
825352
|
18
|
End
Point
|
821504
|
823761
|
|
7
|
Start
Point
|
810499
|
820880
|
19
|
Start
Point
|
822513
|
823268
|
|
7
|
End
Point
|
810499
|
824613
|
19
|
End
Point
|
822513
|
824321
|
|
8
|
Start
Point
|
811508
|
821123
|
20
|
Start
Point
|
823477
|
823402
|
|
8
|
End
Point
|
811508
|
824254
|
20
|
End
Point
|
823477
|
824613
|
|
9
|
Start
Point
|
812516
|
821303
|
21
|
Start
Point
|
805476
|
827081
|
|
9
|
End
Point
|
812516
|
824254
|
21
|
End
Point
|
805476
|
830562
|
|
10
|
Start
Point
|
813525
|
820872
|
22
|
Start
Point
|
806464
|
824033
|
|
10
|
End
Point
|
813525
|
824657
|
22
|
End
Point
|
806464
|
829598
|
|
11
|
Start
Point
|
814556
|
818853
|
23
|
Start
Point
|
814559
|
821739
|
|
11
|
End
Point
|
814556
|
820992
|
23
|
End
Point
|
814559
|
824768
|
|
12
|
Start
Point
|
815542
|
818807
|
|
|
|
|
|
12
|
End
Point
|
815542
|
824882
|
|
|
|
|
2.4.5
Action
& Limit Levels
The
Action and Limit levels of dolphin impact monitoring are shown in Appendix D. The
Event and Action plan is presented in Appendix J.
2.4.6
Monitoring Schedule for the Reporting Period
The
dolphin monitoring schedules for the reporting period are shown in Appendix E.
2.4.7
Results & Observations
A
total of 896.56 km of
survey effort was collected, with 90.3% 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, 341.16 km
and 555.40 km of survey effort were conducted in NEL and NWL
survey areas respectively. The total
survey effort conducted on primary lines was 657.94 km,
while the effort on secondary lines was 238.62 km. Survey effort conducted on both primary and
secondary lines were considered as on-effort survey data. The survey efforts are summarized in Appendix I.
During
the six sets of monitoring surveys in March to May 2016, a total of seven (7) groups of 22
Chinese White Dolphins were sighted. Three
(3) dolphin sightings were made on primary lines during on-effort search. In this quarterly period, all dolphin groups
were sighted in NWL. 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: 7th / 11th Mar 2016
|
0.0
|
0.0
|
|
Set
2: 22nd / 23rd Mar 2016
|
0.0
|
0.0
|
|
Set
3: 5th /12th Apr 2016
|
0.0
|
0.0
|
|
Set
4: 15th / 19th Apr 2016
|
0.0
|
0.0
|
|
Set
5: 3rd / 12th May 2016
|
0.0
|
0.0
|
|
Set
6: 17th /26th May 2016
|
0.0
|
0.0
|
|
NWL
|
Set
1: 7th / 11th Mar 2016
|
0.0
|
0.0
|
|
Set
2: 22nd / 23rd Mar 2016
|
1.6
|
4.8
|
|
Set
3: 5th /12th Apr 2016
|
2.2
|
17.6
|
|
Set
4: 15th / 19th Apr 2016
|
2.1
|
6.3
|
|
Set
5: 3rd / 12th May 2016
|
0.0
|
0.0
|
|
Set
6: 17th /26th May 2016
|
0.0
|
0.0
|
Note: Dolphin Encounter Rates are deduced from the six
sets of surveys (two surveys in each set) in the reporting period in Northeast
(NEL) and Northwest Lantau (NWL)
Table 2.13 Quarterly
Average Encounter Rates
|
Survey
Area
|
Encounter
rate (STG) (no. of on-effort dolphin sightings per 100 km of
survey effort)
|
Encounter
rate (ANI) (no. of dolphins from all on-effort sightings per
100 km of survey effort)
|
|
March
– May 2016
|
September
-November 2011
|
March
– May 2016
|
September
-November 2011
|
|
Northeast Lantau
|
0.0
|
6.00 ± 5.05
|
0.0
|
22.19 ± 26.81
|
|
Northwest Lantau
|
0.98 ± 1.10
|
9.85 ± 5.85
|
4.78 ± 6.85
|
44.66 ± 29.85
|
Note:
encounter rates deduced from the baseline monitoring period (September –
November 2011) have been recalculated based only on survey effort and on-effort
sighting data made along the primary transect lines under favourable
conditions
Group
size of Chinese White Dolphins ranged from one (1) to eight (8) individuals per group in North Lantau region during March to
May 2016. The average dolphin group sizes from
these three months were compared with the ones deduced from the baseline period
in September to November 2011, as shown in Table
2.14.
Table 2.14 Comparison
of Quarterly Average Group Size
|
|
Average
Dolphin Group Size
|
|
March
- May 2016
|
September
- November 2011
|
|
Overall
|
3.14
± 2.27 (n = 7)
|
3.72
± 3.13 (n = 66)
|
|
Northeast
Lantau
|
N/A
|
3.18
± 2.16 (n = 17)
|
|
Northwest
Lantau
|
3.14
± 2.27 (n = 7)
|
3.92
± 3.40 (n = 49)
|
One
(1) Limit Level exceedance was observed for the quarterly dolphin monitoring
data between March and May 2016.
During
this quarter of dolphin monitoring, no unacceptable impact from the activities
of this Contract on Chinese White Dolphins was noticeable from the general
observations.
Although
the dolphins infrequently occurred along the alignment of TM-CLKL Southern Connection
Viaduct in the past and during the baseline monitoring period, it is apparent
that dolphin usage has been significantly reduced in 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 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.
Passive
Acoustic Monitoring (PAM) was decommissioned in this reporting period as no
marine piling works was carried out outside the daylight hours since September
2015. Daytime marine mammal exclusion
zone was still in effect to cater for temporary staging installation and
uninstallation works.
2.5
EM&A Site Inspection
Site
inspections were carried out on a weekly basis to monitor the implementation of
proper environmental pollution control and mitigation measures under the
Contract. Thirteen (13) site inspections
were carried out in the reporting quarter on 1, 8, 16, 23 and 31 March 2016; 6,
13, 20 and 28 April 2016; and 4, 11, 18 and 26 May 2016.
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
|
|
1 March 2016
|
Area 1
Ÿ A chemical container was not placed in drip tray.
Ÿ Soil stockpile was not covered.
Ÿ Refuse was found in drainage.
|
Area 1
Ÿ Chemical containers should be placed in drip tray.
Ÿ Tarpaulin sheet was used to cover the stockpile
immediately.
Ÿ Refuse in drainage should be cleaned up regularly.
|
|
8 March 2016
|
Pier E4
Ÿ Sandbags were insufficient to avoid runoff.
Ÿ Refuse was found on platform.
Ÿ Excessive soil was found in gutter.
Pier E5
Ÿ Chemical containers were not placed in drip tray.
Ÿ Oil stain was found on platform.
|
Pier E4
Ÿ More sandbags should be provided to avoid runoff.
Ÿ Refuse on platform should be cleaned up regularly.
Ÿ Excessive soil in gutter should be cleaned up
regularly.
Pier E5
Ÿ Chemical containers should be placed in drip tray.
Ÿ Oil stain should be cleaned up.
|
|
16 March 2016
|
Pier A9
Ÿ Chemical containers were not placed in drip tray.
Ÿ An
outdated EP was displayed at the entrance.
Area 2
Ÿ Water
was leaking from pipe and accumulated in site area.
|
Pier A9
Ÿ Chemical containers should be placed in drip tray.
Ÿ Only
the most updated EP should be displayed.
Area 2
Ÿ Water
leakage should be avoided for preventing stagnant water runoff.
|
|
23 March 2016
|
Pier E7
Ÿ A generator was not placed on decoupling pad.
Ÿ Oil stain was found on platform.
Ÿ Some chemical containers were not placed in drip
tray.
Ÿ An
expired dumping permit was displayed.
|
Pier E7
Ÿ Generator on marine platform should be placed on
decoupling pad.
Ÿ Oil
stain was removed immediately.
Ÿ Chemical
containers should be placed in drip tray.
Ÿ The
expired dumping permit was removed immediately.
|
|
31 March 2016
|
Area 1
Ÿ Equipment
was placed too close to natural habitat.
Pier E7
Ÿ A
generator was not well placed on decoupling pad.
|
Area 1
Ÿ Construction
equipment should be placed away from natural habitat.
Pier E7
Ÿ Generators
on marine platform should be well placed on decoupling pad.
|
|
6 April 2016
|
Area 1
Ÿ Some broken sandbags were placed too close to
drainage.
Ÿ Refuse was found in drainage.
Ÿ Construction material was placed too close to
natural habitat.
Area
2
Ÿ Soil stockpile was not well covered.
|
Area 1
Ÿ Broken sandbags should be removed.
Ÿ Refuse in drainage should be cleaned up.
Ÿ Construction material should be placed away from
natural habitat.
Area 2
Ÿ Soil stockpile should be well covered.
|
|
13 April 2016
|
Seafront
Ÿ Oil stain was found on the floor.
|
Seafront
Ÿ Oil stain should be cleaned up.
|
|
20 April 2016
|
Abutment D
Ÿ Drip tray for generator was not plugged.
Ÿ The road was partially dry.
|
Abutment D
Ÿ Drip tray should be plugged.
Ÿ Watering
should be applied regularly to avoid dust emission.
|
|
28 April 2016
|
Pier E6
Ÿ Drip
tray for generator was not plugged.
Pier E4
Ÿ Waste
on platform was not properly stored.
|
Pier E6
Ÿ Drip
tray should be plugged.
Pier E7
Ÿ Waste
should be stored properly.
|
|
4 May 2016
|
Pier E13AB
Ÿ Waste was not properly disposed.
Pier
E6
Ÿ Drip tray for generator was not plugged..
|
Pier E13AB
Ÿ Waste should be properly stored and disposed.
Pier
E6
Ÿ Drip tray should be plugged..
|
|
11 May 2016
|
Area 1
Ÿ Checklist of a wetsep
was not displayed.
Ÿ Soil Stockpile was not well covered by tarpaulin
sheet.
Area 2
Ÿ The unpaved area was partially dry.
|
Area 1
Ÿ Checklist of the wetsep
should be displayed.
Ÿ Soil Stockpile should be well covered
Area 2
Ÿ Watering should be applied regularly to avoid dust
emission.
|
|
18 May 2016
|
Pier E13AB
Ÿ Waste was improperly stored on marine platform.
Ÿ A chemical container was not placed in drip tray.
|
Pier E13AB
Ÿ Waste should be properly stored and cleaned up
regularly.
Ÿ Chemical containers should be placed in drip
tray.
|
|
26 May 2016
|
Area 2
Ÿ Soil
stockpile was not well covered by tarpaulin sheet.
Pier E1
Ÿ Surface
runoff control was insufficient.
Ÿ An
air compressor was not placed in drip tray.
Ÿ A chemical container was not placed in drip tray.
|
Area 2
Ÿ Soil
stockpile should be well covered by tarpaulin sheet.
Pier E1
Ÿ Surface
runoff control should be provided.
Ÿ Air
compressor should be placed in drip tray.
Ÿ Chemical container should be placed in drip tray.
|
The Contractor has rectified all of the observations
identified during environmental site inspections in the reporting period.
2.6
Waste
Management Status
The Contractor has
submitted application form for registration as chemical waste producer under
the Contract. Sufficient numbers of
receptacles were available for general refuse collection and sorting.
Wastes
generated during this reporting period include mainly construction wastes
(inert and non-inert) and recyclable materials.
Reference has been made to the waste flow table prepared by the
Contractor (Appendix K). The quantities of different types of wastes
are summarized in Table 2.16.
Table 2.16 Quantities of Different Waste Generated in the Reporting Period
|
Month / Year
|
Inert Construction Waste (a)
(m3)
|
Imported Fill (m3)
|
Inert Construction Waste
Re-used
(m3)
|
Non-inert Construction Waste (b)
(kg)
|
Recyclable Materials (c) (kg)
|
Chemical Wastes (kg)
|
Marine Sediment (m3)
|
|
Category L
|
Category M
|
|
March 2016
|
965
|
0
|
537
|
88,360
|
0
|
2,000
|
0
|
0
|
|
|
April 2016
|
565
|
0
|
789
|
79,580
|
8,724
|
3,000
|
0
|
0
|
|
|
May 2016
|
440
|
0
|
581
|
75,620
|
0
|
3,000
|
0
|
0
|
|
|
Total
|
1,970
|
0
|
1,907
|
243,560
|
8,724
|
8,000
|
0
|
0
|
|
|
Notes:
|
|
(a) Inert
construction wastes include hard rock and large broken concrete, and
materials disposed as public fill.
(b) Non-inert
construction wastes include general refuse disposed at landfill.
(c) Recyclable
materials include metals, paper, cardboard, plastics, timber and others.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The
Contractor was advised to properly maintain on site C&D materials and waste
collection, sorting and recording system, dispose of C&D materials and
wastes at designated ground and maximize reuse/ recycle of C&D materials
and wastes. The Contractor was also reminded
to properly maintain the site tidiness and dispose of the wastes accumulated on
site regularly and properly.
For
chemical waste containers, the Contractor was reminded to treat properly and
store temporarily in designated chemical waste storage area on site in
accordance with the Code of Practice on
the Packaging, Labelling and Storage of Chemical Wastes.
2.7
Environmental Licenses and
Permits
The
status of environmental licensing and permit is summarized in Table 2.17 below.
Table 2.17 Summary of Environmental Licensing and
Permit Status
|
License/ Permit
|
License or Permit No.
|
Date of
Issue
|
Date of
Expiry
|
License/
Permit Holder
|
Remarks
|
|
Environmental Permit
|
EP-353/2009/I
|
17-Jul-15
|
N/A
|
HyD
|
Hong Kong Boundary Crossing Facilities
|
|
Environmental Permit
|
EP-354/2009/D
|
13-Mar-15
|
N/A
|
HyD
|
Tuen Mun-
Chek Lap Kok Link
|
|
Construction Dust Notification
|
361571
|
05-Jul-13
|
N/A
|
GCL
|
|
|
Construction Dust Notification
|
362093
|
17-Jul-13
|
N/A
|
GCL
|
For Area 23
|
|
Construction Waste Disposal Account
|
7017735
|
10-Jul-13
|
N/A
|
GCL
|
-
|
|
Construction Waste Disposal Account
|
7019470
|
03-Mar-14
|
N/A
|
GCL
|
Vessel CHIT Account
|
|
Chemical Waste Registration
|
5213-951-G2380-17
|
12-Jun-14
|
N/A
|
GCL
|
Viaducts A, B, C, D & E
|
|
Chemical Waste Registration
|
5213-961-G2380-13
|
10-Oct-13
|
N/A
|
GCL
|
Chemical waste produced in Contract 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
|
04-Nov-13
|
N/A
|
GCL
|
Chemical waste produced in Contract HY/2012/07
(WA5 adjacent to Cheung Tung Road, Yam O)
|
|
Construction Noise Permit for night works and works in
general holidays
|
GW-RS0080-16
|
01-Feb-16
|
30-Apr-16
|
GCL
|
For Broad Permit
|
|
Construction Noise Permit for night works and works in
general holidays
|
GW-RS0109-16
|
05-Feb-16
|
14-Aug-16
|
GCL
|
Pre-casted pile cap shell installation at E10-E13
|
|
Construction Noise Permit for night works and works in
general holidays
|
GW-RS0279-16
|
29-Mar-16
|
30-May-16
|
GCL
|
Broad Permit for Segmen.
Launching at Land Portion
|
|
Construction Noise Permit for night works and works in
general holidays
|
GW-RS0383-16
|
20-Apr-16
|
19-Oct-16
|
GCL
|
For Broad Permit
|
|
Construction Noise Permit for night works and works in
general holidays
|
GW-RS1054-15
|
30-Sep-15
|
29-Mar-16
|
GCL
|
For Load unload at NLH near Viaduct D
|
|
Construction Noise Permit for night works and works in
general holidays
|
GW-RW0045-16
|
27-Jan-16
|
25-Jul-16
|
GCL
|
General works at WA5
|
|
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
|
|
Marine Dumping Permit
|
EP/MD/16-138
|
10-Dec-15
|
13-Jun-16
|
GCL
|
For dumping Type I sediment
|
|
Marine Dumping Permit
|
EP/MD/16-203
|
29 Mar 2016
|
30 Apr 2016
|
GCL
|
For dumping Type I (Dedicated Site) and Type II
sediment
|
|
Marine Dumping Permit
|
EP/MD/17-028
|
31-May-16
|
30-Jun-16
|
GCL
|
For dumping Type I (Dedicated Site) and Type II
sediment
|
In response to
the site audit findings, the Contractor has carried out corrective actions.
A summary of the Environmental
Mitigation and Enhancement Measure Implementation Schedules (EMIS) is presented
in Appendix
C. The necessary mitigation measures were
implemented properly for this Contract.
Results for 1-hour TSP, 24-hour TSP, construction
noise and water quality complied with the Action/ Limit levels in the reporting
period.
The
construction impact on depth-averaged SS was assessed by comparing the
quarterly mean values of depth-averaged SS with the corresponding ambient mean
values (Table 2.18). Quarterly-averaged SS levels at CS(Mf)5, CS(Mf)3, SR4, SR4a during mid-ebb tide and SR4a
during mid-flood tide were higher than their corresponding ambient levels. One-way ANOVA was conducted to examine if
there was any significant difference between ambient levels and impact
monitoring results for these stations.
By setting α=0.05, significant difference was only detected at CS(Mf)3 during mid-ebb tide (F1,70=5.56, p=0.02), which is the upstream control
station. The differences at other stations were insignificant (F1,72=3.57,
p=0.06 at CS(Mf)5 during mid-ebb tide; F1,60=0.01,
p=0.93 at SR4 during mid-ebb tide; F1,51=0.82,
p=0.37 at SR4a during mid-ebb tide; and F1,51=0.05,
p=0.83 during mid-flood tide). There
was no significant deterioration at all impact monitoring stations when
comparing to their corresponding ambient levels. The depth-averaged SS results suggest that
the Project did not cause unacceptable impact on water quality in the reporting
period.
Table 2.18 Comparison between Quarterly Mean and Ambient Mean Values of
Depth-averaged Suspended Solids
|
Station
|
Baseline Mean
|
Ambient Mean (a)
|
Quarterly
Mean (March to May 2016)
|
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
|
CS(Mf)3
|
9.2
|
12.8
|
12.0
|
16.6
|
14.7
|
13.9
|
|
CS(Mf)5
|
9.2
|
11.5
|
11.9
|
14.9
|
14.0
|
13.5
|
|
SR4
|
10.3
|
12.3
|
13.4
|
16.0
|
13.5
|
12.6
|
|
SR4a
|
9.1
|
9.8
|
11.9
|
12.7
|
13.5
|
13.1
|
|
IS8
|
11.3
|
13.5
|
14.6
|
17.6
|
13.6
|
12.8
|
|
IS(Mf)9
|
10.9
|
14.3
|
14.2
|
18.5
|
14.0
|
13.2
|
|
IS(Mf)16
|
11.4
|
10.3
|
14.8
|
13.4
|
14.0
|
13.2
|
|
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, no unacceptable
impact was associated with the construction works under this Contract that may
have affected the dolphin usage in the North Lantau region. Investigation findings were detailed in Appendix L.
The Environmental Complaint Handling Procedure is
provided in Figure 2.5.
There was no complaint, notification of summons or
successful prosecution recorded in the reporting period. Statistics on complaint, notification of
summons of successful prosecution are summarized in Appendix L.
3
Future
Key Issues
As informed by
the Contractor, the major works for the Contract in the coming quarter are
summarized below:
June
2016
Marine Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pier
construction;
· Construction
of marine section of berth at Southern Landfall;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
July 2016
Marine
Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
August
2016
Marine
Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Construction
of land section of berth at Southern Landfall;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
3.2
Key Issues for the Coming Quarter
Potential
environmental impacts arising from the above upcoming construction activities are
mainly associated with air quality, noise, marine water quality, marine ecology
and waste management issues.
Impact
monitoring for air quality, noise, marine water quality and dolphin monitoring
are scheduled to continue for the next reporting period.
The
monitoring programme has been reviewed and was
considered as adequate to cater for the nature of works in progress.
4
Conclusions
and recommendations
The
Tenth Quarterly EM&A Report presents the findings of the EM&A
activities undertaken during the period from 1 March to 31 May 2016, in
accordance with the Updated EM&A Manual and the requirements of the Environmental Permits (EP-354/2009/D and EP-353/2009/I).
Neither
Action Level nor Limit Level exceedances were observed for air quality, noise and
water quality monitoring in this reporting period.
A
total of seven (7) groups of twenty-two (22) Chinese White Dolphins were sighted
during the six sets of survey from March to May 2016. One (1) Limit Level exceedance was recorded
for the quarterly dolphin monitoring data between March and May 2016, 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.
There was no environmental complaint, notification of
summon or successful prosecution in the reporting period.
The
monitoring programme has been reviewed and was
considered as adequate to cater for the nature of works in progress. Change to the monitoring
programme was thus not recommended at this stage. The monitoring programme will be evaluated as
appropriate in the next reporting period.
The ET will keep track on the construction works to confirm compliance
of environmental requirements and the proper implementation of all necessary
mitigation measures.
