Executive
Summary
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
2.1 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
3.1 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
Under Contract No. HY/2012/07,
Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Southern
Connection Viaduct Section of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM
Asia Company Limited was appointed by HyD as the
Supervising Officer. For implementation
of the environmental monitoring and audit (EM&A) programme
under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the
Environmental Team (ET). Ramboll Environ Hong Kong Ltd. was employed by the HyD as the Independent Environmental Checker (IEC) and
Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A. Further applications for variation of
environmental permit (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014
and 13 March 2015, respectively.
The southern landfall of TM-CLK Link lies alongside
the Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities
(HKBCF) where a reclamation area is constructed by Contract No. HY/2010/02
under Environmental Permit No. EP-353/2009/K and EP-354/2009/D. Upon the agreement and confirmation between
the Supervising Officer Representatives and Contractors of HY/2010/02 and HY/2012/07
in September 2015, part of the reclamation area for southern landfall under EP-353/2009/K and EP-354/2009/D was handed-over to Contract No. HY/2012/07. Another part of the southern landfall area
under EP-354/2009/D was handed-over
to Contract No. HY/2012/07 after
completion of reclamation works by Contract
No. HY/2010/02 in June 2016.
The construction phase of the Contract commenced on 31
October 2013 and will be tentatively completed by 2018. The impact monitoring of the EM&A programme, including air quality, noise, water quality and
marine ecological monitoring as well as environmental site inspections,
commenced on 31 October 2013.
This is the Thirteenth Quarterly EM&A Report presenting
the EM&A works carried out during the period from 1 December 2016 to 28 February
2017 for the Southern Connection Viaduct
Section in accordance with the Updated EM&A Manual of the
TM-CLK Link Project. As informed by the Contractor, major
activities in the reporting period included:
December 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;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
January 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
February 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP monitoring 17 sessions
1-hour TSP monitoring 17 sessions
Noise monitoring 17
sessions
Water quality monitoring 37 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 December 2016 and February 2017. No unacceptable impact from the construction activities
of the TM-CLKL Southern Connection Viaduct Section on Indo-Pacific
humpback dolphin Sousa chinensis (i.e. Chinese
White Dolphins) was noticeable from general observations during the dolphin
monitoring in this reporting quarter. The
exceedance is considered unlikely due to the works of this Project upon further
investigation.
Daily
marine mammal exclusion zone monitoring was undertaken during the period of
marine works under this Contract. No
Passive Acoustic Monitoring (PAM) was implemented as the marine piling works
were not carried out outside the daylight hours in this reporting period. No sighting of the Chinese White Dolphin was recorded in the monitoring
period during the exclusion zone monitoring.
Environmental
Complaints, Non-compliance & Summons
There were two (2) complaints received in the
reporting period. One complaint was received
from EPD on 13 December 2016 regarding hammering noise nuisance generated
during midnights in the reporting period. Another complaint was received from EPD on 13
January 2017 regarding constructional vessels and silt curtain found within the
boundary of Brothers Marine Park in the reporting period. Upon investigation, the two complaints are considered
not related to this Project.
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:
March 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
April 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
May 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
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.
According to the findings of the Northwest New
Territories (NWNT) Traffic and Infrastructure Review conducted by the Transport
Department, Tuen Mun Road,
Ting Kau Bridge, Lantau Link and North Lantau Highway
would be operating beyond capacity after 2016.
This forecast has been based on the estimated increase in cross boundary
traffic, developments in the Northwest New Territories (NWNT), and possible
developments in North Lantau, including the Airport developments, the Lantau
Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic
demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek
Lap Kok Link (TM-CLKL) and Tuen
Mun Western Bypass (TMWB) are proposed.
An Environmental Impact Assessment (EIA) of TM-CLKL
(the Project) was prepared in accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical Memorandum of the Environmental
Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the
Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report
(EIAO Register Number: AEIAR-146/2009),
an Environmental Permit (EP-354/2009)
for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4
November 2009, and EP variation (EP-354/2009A)
was issued on 8 December 2010. Further applications for variation of
environmental permit (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014
and 13 March 2015, respectively.
Under Contract No. HY/2012/07,
Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the
Southern Connection Viaduct Section of TM-CLKL (“the Contract”) while AECOM
Asia Company Limited was appointed by HyD as the
Supervising Officer. For implementation
of the environmental monitoring and audit (EM&A) programme
under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the
Environmental Team (ET). Ramboll Environ Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and
Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A.
The southern landfall of TM-CLK Link lies alongside
the Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities
(HKBCF) where a reclamation area is constructed by Contract No. HY/2010/02
under Environmental Permit No. EP-353/2009/K and EP-354/2009/D. Upon the agreement and confirmation between
the Supervising Officer Representatives and Contractors of HY/2010/02 and HY/2012/07
in September 2015, part of the reclamation area for southern landfall under EP-353/2009/K and EP-354/2009/D was handed-over to Contract No. HY/2012/07. Another part of the southern landfall area
under EP-354/2009/D was handed-over
to Contract No. HY/2012/07 after
completion of reclamation works by Contract
No. HY/2010/02 in June 2016.
The 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 3950 |
3691 2899 |
|
ENPO / IEC (Ramboll Environ Hong Kong Ltd.) |
ENPO Leader |
Y.H. Hui |
3465
2850 |
3465 2899 |
IEC |
Dr. F.C.
Tsang |
3465
2851 |
3465 2899 |
|
Contractor (Gammon
Construction Limited) |
Environmental
Manager |
Brian Kam |
3520 0387 |
3520 0486 |
Environmental
Officer |
Roy Leung |
3520 0387 |
3520 0486 |
|
|
24-hour
Complaint Hotline |
|
9738 4332 |
|
ET (ERM-HK) |
ET Leader |
Jovy Tam |
2271 3113 |
2723 5660 |
December 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;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
January 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
February 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
The
locations of the construction activities are shown in Figure 1.3.
The Environmental Sensitive Receivers in the vicinity of the Project are
shown in Figure 1.4.
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.
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 ([1])
are adopted for this Project.
1-hour TSP and 24-hour TSP
monitoring were conducted at 2 alternative air quality monitoring stations, ASR8A
(Area 4) and ASR9 (entrance of MTR Depot) during the reporting period in
accordance with the requirement of the Updated EM&A Manual. The monitoring stations are indicated in Figure 2.1 and details are presented in Table 2.1.
High Volume Samplers (HVSs)
were used for carrying out 1-hour and 24-hour TSP monitoring during the
reporting period. The HVSs meets all
requirements of the Updated EM&A Manual.
Brand and model of the equipment are given in Table 2.2.
Wind data monitoring equipment was installed at Area 4
during the reporting period for logging wind speed and wind direction. The wind sensor was setup such that it was clear
of obstructions or turbulence caused by building. The wind data monitoring equipment is
recalibrated at least once every six months.
Table 2.1 Locations of Impact Air Quality
Monitoring Stations and Monitoring Dates in this Reporting Period
Monitoring Station (1) |
Monitoring Period |
Location |
Description |
Parameters & Frequency |
ASR8A |
1, 7, 13,
19, 22 and 28 December 2016 3, 9, 12,
18, 24 and 27 January 2017 2, 8, 14, 20
and 23 February 2017 |
Area 4 |
On ground at
the works area, Area 4 |
1-hour Total
Suspended Particulates (1-hour TSP, µg/m3), 3 times per day every
6 days 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 |
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) |
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.
The schedules for air quality monitoring in the
reporting quarter are provided in Appendix E.
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 Thirty-eighth to Fortieth 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) |
December 2016 |
ASR 8A |
87 |
47
– 125 |
394 |
500 |
ASR 9 |
125 |
62
- 180 |
393 |
500 |
|
January 2017 |
ASR 8A |
107 |
58
– 160 |
394 |
500 |
ASR 9 |
165 |
77
- 245 |
393 |
500 |
|
February 2017 |
ASR 8A |
73 |
45
- 147 |
394 |
500 |
ASR 9 |
86 |
46
- 147 |
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) |
December 2016 |
ASR 8A |
65 |
46
– 78 |
178 |
260 |
ASR 9 |
80 |
71
– 94 |
178 |
260 |
|
January 2017 |
ASR 8A |
62 |
50
– 81 |
178 |
260 |
ASR 9 |
85 |
72
- 96 |
178 |
260 |
|
February 2017 |
ASR 8A |
56 |
47
– 62 |
178 |
260 |
ASR 9 |
60 |
54
- 68 |
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 ([2]) are adopted
for this Project.
In accordance with the Updated EM&A Manual, impact
noise monitoring should be conducted once per week during the construction
phase of the Contract.
Noise monitoring was conducted at the alternative
noise monitoring station, NSR1A (Pak Mong Village
Pavilion) during the reporting period in accordance with the requirement of
Updated EM&A Manual. Figure 2.2 shows the location of the monitoring
station. Table 2.5 describes the details of the monitoring station.
Noise monitoring was performed using sound level meter
at the designated monitoring station in the reporting quarter. The deployed sound level meter complies with
the International Electrotechnical Commission
Publications (IEC) 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic calibrator was deployed to check the
sound level meter at a known sound pressure level. Brand
and model of the equipment is given in
Table 2.6.
Table 2.5 Location of Impact Noise Monitoring
Station and Monitoring Dates in this Reporting Period
Monitoring Station |
Monitoring Period |
Location |
Parameters & Frequency |
NSR1A |
1, 7, 13,
19, 22 and 28 December 2016 3, 9, 12,
18, 24 and 27 January 2017 2, 8, 14, 20
and 23 February 2017 |
Pak Mong Village Pavilion |
30-mins
measurement at each monitoring station between 0700 and 1900 on normal
weekdays (Monday to Saturday). Leq, L10
and L90 would be recorded. At
least once 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 |
The Action and Limit levels of the noise monitoring are
provided in Appendix D. The Event and Action plan is presented in Appendix J.
The schedule for construction noise monitoring in the
reporting period is provided in Appendix F.
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 Thirty-eighth to Fortieth 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) |
December 2016 |
60 |
59
- 61 |
75 |
January 2017 |
60 |
59
- 61 |
75 |
February 2017 |
62 |
61
- 63 |
75 |
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 ([3]) are adopted
for this Project. Baseline water quality
monitoring was conducted at station SR4a from 29 August to 24 September 2013.
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 |
Temperature(°C) pH(pH unit) Turbidity (NTU) Water depth (m) Salinity (ppt) 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 |
Turbidity meter |
HACH Model 2100Q |
pH meter
|
HANNA HI8314 / HANNA HI9125 |
Positioning Equipment |
Koden913MK2 with KBG-3 DGPS antenna |
Water Depth Detector |
Speedtech Instrument SM-5 |
Water Sampler |
Kemmerer 1520 (1520-C25) 2.2L with messenger |
The schedules for water quality monitoring in the
reporting quarter are provided in Appendix E. The water quality monitoring was cancelled on
28 and 31 January 2017 due to suspension of marine works during holiday.
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 Thirty-eighth
to Fortieth Monthly EM&A Reports.
In this reporting period, a total of 37 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.
Impact dolphin monitoring is required to be conducted
by a qualified dolphin specialist team to evaluate whether there have been any
effects on the Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) from the Contract. In order to fulfil the EM&A requirements
and make good use of available resources, the on-going impact line transect
dolphin monitoring data collected by HyD’s Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge. Hong
Kong Link Road - Section between Scenic Hill and Hong Kong Boundary Crossing
Facilities on the monthly basis is adopted to avoid duplicates of survey
effort.
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 |
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.
The impact dolphin monitoring was carried out in the
NEL and NWL along the line transect as depicted in Figure 2.4. The co-ordinates of all transect lines are
shown in Table 2.11 below.
Table
2.11 Impact Dolphin Monitoring Line Transect Co-ordinates
Line No. |
Easting |
Northing |
Line No. |
Easting |
Northing |
||
1 |
Start Point |
804671 |
815456 |
13 |
Start Point |
816506 |
819480 |
1 |
End Point |
804671 |
831404 |
13 |
End Point |
816506 |
824859 |
2 |
Start Point |
805475 |
815913 |
14 |
Start Point |
817537 |
820220 |
2 |
End Point |
805477 |
826654 |
14 |
End Point |
817537 |
824613 |
3 |
Start Point |
806464 |
819435 |
15 |
Start Point |
818568 |
820735 |
3 |
End Point |
806464 |
822911 |
15 |
End Point |
818568 |
824433 |
4 |
Start Point |
807518 |
819771 |
16 |
Start Point |
819532 |
821420 |
4 |
End Point |
807518 |
829230 |
16 |
End Point |
819532 |
824209 |
5 |
Start Point |
808504 |
820220 |
17 |
Start Point |
820451 |
822125 |
5 |
End Point |
808504 |
828602 |
17 |
End Point |
820451 |
823671 |
6 |
Start Point |
809490 |
820466 |
18 |
Start Point |
821504 |
822371 |
6 |
End Point |
809490 |
825352 |
18 |
End Point |
821504 |
823761 |
7 |
Start Point |
810499 |
820880 |
19 |
Start Point |
822513 |
823268 |
7 |
End Point |
810499 |
824613 |
19 |
End Point |
822513 |
824321 |
8 |
Start Point |
811508 |
821123 |
20 |
Start Point |
823477 |
823402 |
8 |
End Point |
811508 |
824254 |
20 |
End Point |
823477 |
824613 |
9 |
Start Point |
812516 |
821303 |
21 |
Start Point |
805476 |
827081 |
9 |
End Point |
812516 |
824254 |
21 |
End Point |
805476 |
830562 |
10 |
Start Point |
813525 |
820872 |
22 |
Start Point |
806464 |
824033 |
10 |
End Point |
813525 |
824657 |
22 |
End Point |
806464 |
829598 |
11 |
Start Point |
814556 |
818853 |
23 |
Start Point |
814559 |
821739 |
11 |
End Point |
814556 |
820992 |
23 |
End Point |
814559 |
824768 |
12 |
Start Point |
815542 |
818807 |
|
|
|
|
12 |
End Point |
815542 |
824882 |
|
|
|
|
The Action and Limit levels of dolphin impact monitoring
are shown in Appendix D. The Event and Action plan is presented in Appendix J.
The dolphin monitoring schedules for the reporting
period are shown in Appendix E.
A total of 878.35 km of survey effort was collected, with 86.5% 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, 340.00 km and 538.35 km
of survey effort were conducted in NEL and NWL survey areas respectively. The total survey effort conducted on primary lines
was 632.39 km, while the effort on secondary lines was 245.96 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 December 2016
to February 2017, a
total of seventeen (17) groups of 62 Chinese White Dolphins were sighted. Fourteen (14) dolphin sightings were made
during on-effort, while all except one on-effort dolphin sightings were made on
primary lines. In this quarterly period,
all dolphin groups were sighted in NWL, no sighting of dolphin was sighted in
NEL. Summary table of the dolphin
sightings is shown in Appendix II.
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: 1st/ 6th
Dec 2016 |
0.0 |
0.0 |
Set 2: 16th / 19th
Dec 2016 |
0.0 |
0.0 |
|
Set 3: 10th /12th
Jan 2017 |
0.0 |
0.0 |
|
Set 4: 16th / 20th
Jan 2017 |
0.0 |
0.0 |
|
Set 5: 7th / 9th
Feb 2017 |
0.0 |
0.0 |
|
Set 6: 16th /21st
Feb 2017 |
0.0 |
0.0 |
|
NWL |
Set 1: 1st/ 6th
Dec 2016 |
1.58 |
1.58 |
Set 2: 16th / 19th
Dec 2016 |
5.99 |
22.45 |
|
Set 3: 10th /12th
Jan 2017 |
0.00 |
0.00 |
|
Set 4: 16th / 20th
Jan 2017 |
6.27 |
20.38 |
|
Set 5: 7th / 9th
Feb 2017 |
0.00 |
0.00 |
|
Set 6: 16th /21st
Feb 2017 |
8.99 |
42.71 |
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) |
||
December 2016 – February 2017 |
September -November 2011 |
December 2016 – February 2017 |
September -November 2011 |
|
Northeast
Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest
Lantau |
3.80 ± 3.79 |
9.85 ± 5.85 |
14.52 ± 17.21 |
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
Table 2.14 Comparison of Quarterly Average Group
Sizes
|
Average Dolphin Group Size |
|
December 2016 - February 2017 |
September - November 2011 |
|
Overall |
3.65 ± 2.37 (n = 17) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
--- |
3.18 ± 2.16 (n = 17) |
Northwest Lantau |
3.65 ± 2.37 (n = 17) |
3.92 ± 3.40 (n = 49) |
Although the dolphins infrequently occurred along the
alignment of TM-CLKL Southern Connection Viaduct in the past and during the
baseline monitoring period, it is apparent that dolphin usage has been
significantly reduced in both NEL and NWL, and many individuals have shifted
away from the important habitat around the Brothers Islands.
Daily marine
mammal
exclusion zone monitoring was undertaken during the period of marine works
under this Contract. No sighting of Chinese
White Dolphin was recorded in the monitoring period during the exclusion zone
monitoring.
Passive Acoustic
Monitoring (PAM) was decommissioned in this reporting period as no marine
piling works was carried out outside the daylight hours since September
2015. Daytime marine mammal exclusion
zone was still in effect to cater for temporary staging installation and
uninstallation works.
Site inspections were carried out on a weekly basis to
monitor the implementation of proper environmental pollution control and
mitigation measures under the Contract. Thirteenth
(13) site inspections were carried out in the reporting quarter on 7, 14, 22 and 29 December
2016, 4, 11, 18 and 26 January
2017, 2, 7, 15, 24 and 28
February 2017.
Key observations during the site inspections in this
reporting period are summarized in Table
2.15.
Table
2.15 Specific Observations Identified during the Weekly Site
Inspection in this Reporting Period
Inspection Date |
Location & Environmental Observations |
Recommendations/ Remarks |
7 December
2016 |
Viaduct B
(B17) NRMM labels were not displayed on air compressor. Sand bunds were not
provided to avoid sediment runoff. Chemical container was
not placed in drip tray. Viaduct C (C17) Stockpile was not fully covered by tarpaulin |
Viaduct B
(B17)
The Contractor was
reminded to display NRMM labels on air compressor.
The Contractor was reminded to provide sand bunds. The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Viaduct C (C17) The Contractor was reminded cover stockpile by
tarpaulin. |
14 December
2016 |
Seafront Chemical container was not placed in drip tray. Viaduct E (E13AB) NRMM labels were not displayed on generator. Viaduct E (E4) Accumulated
general refuse was observed. |
Seafront The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Viaduct E (E13AB) The
Contractor was reminded to display NRMM labels on generator. Viaduct E (E4) The
Contractor was reminded to clear accumulated general refuse. |
22 December
2016 |
Viaduct D (D9) Accumulated
general refuse was observed. Viaduct D (D14) Chemical
containers were not placed in drip tray. Ramp D Accumulated
general refuse was observed. |
Viaduct D (D9) The
Contractor was reminded to clear accumulated general refuse. Viaduct D
(D14) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Ramp D The
Contractor was reminded to clear accumulated general refuse. |
29 December
2016 |
Viaduct E (E8) Chemical
containers were not placed in drip tray. Viaduct B (near
LG1) Chemical
containers were not placed in drip tray.
Water inside drip tray was
observed.
NRMM labels were not
properly displayed on generator. |
Viaduct E (E8) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Viaduct B (near
LG1) The Contractor was reminded to
remove the chemical containers and placed them in drip tray.
The Contractor was
reminded to clear water inside drip tray.
The Contractor was
reminded to properly display NRMM labels on generator. |
04 January
2017 |
Viaduct E
(E13CD) Chemical container was
not placed in drip tray. Southern
Landfall (Portion A) Chemical container was
not placed in drip tray. |
Viaduct E
(E13CD) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Southern
Landfall (Portion A)
The Contractor was reminded to remove the
chemical containers and placed them in drip tray. |
11 January
2017 |
Viaduct B
(B16) Drip tray was not well-plugged to avoid water
runoff. Tidiness
should be maintained at site. Viaduct C (C16) Chemical container was
not placed in drip tray. |
Viaduct B
(B16) The Contractor was reminded to plug
the drip tray. The
Contractor was reminded to keep tidiness at site. Viaduct C (C16) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. |
18 January
2017 |
Viaduct E (E5) Chemical
containers were not placed in drip tray. Southern
Landfall (Portion A) Labelling
of Mp sediment should be displayed properly. |
Viaduct E (E5) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Southern
Landfall (Portion A) The
Contractor was reminded to display the label properly. |
26 January
2017 |
Viaduct E (E12)
Better housekeeping should be maintained. |
Viaduct E (E12)
The Contractor was reminded to keep
tidy of the site. |
02 February
2017 |
Viaduct D
(D13) Chemical container was
not placed in drip tray. Accumulated general
refuse was observed at site. Viaduct D
(D18) Chemical container was
not placed in drip tray. Ramp D
Better housekeeping should be maintained.
Oil leakage was observed
nearby excavator. |
Viaduct D
(D13) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. The
Contractor was reminded to clear the general refuse. Viaduct D
(D18)
The Contractor was reminded to remove the
chemical containers and placed them in drip tray. Ramp D
The Contractor was
reminded to keep better housekeeping at site.
The Contractor was
reminded to clear oil leakage. |
07 February
2017 |
Southern
Landfall (Portion A) NRMM label should be displayed properly on drill
rig. Chemical container was
not placed in drip tray Oil leakage was observed nearby power pack. |
Southern
Landfall (Portion A) The Contractor was reminded to
display NRMM label properly on drill rig. The Contractor was reminded to
remove the chemical containers and placed them in drip tray. The Contractor was reminded to
clear oil leakage. |
15 February
2017 |
Viaduct B (B16) Environmental
Permit (EP) should be displayed at site or area nearby sensitive receiver. Viaduct B
(B17) Watering
was not maintained on unpaved area. Ramp B NRMM label should be displayed properly on
excavator. Oil leakage was observed nearby excavator. Drip tray was observed not properly plugged. |
Viaduct B (B16) The
Contractor was reminded to display Environmental Permit (EP) at site or area
nearby sensitive receiver. Viaduct B
(B17) The
Contractor was reminded to maintain watering on unpaved area. Ramp B The Contractor was reminded to clealy display NRMM label on excavator. The Contractor was reminded to clear oil leakage. The Contractor was reminded to properly plug the
drip tray. |
24 February
2017 |
Viaduct B (Deck Pier B1) NRMM label should be displayed on the generator. Stagnant water was observed in the drip tray near
air compressor. Southern Landfall (Portion A) Flow direction should be indicated on the pipe. |
Viaduct B (Deck Pier B1) The Contractor was reminded to display NRMM label
on the generator. The Contractor was reminded to clear stagnant
water in the drip tray near air compressor. Southern Landfall (Portion A) The Contractor was reminded to provide indication
of flow direction on the pipe. |
28 February
2017 |
Viaduct E (E7) Chemicals were not placed
in drip tray. General refuse was
observed at site. Viaduct E (E12)
Absorption pad should be
provided nearby the drip tray of the generator. |
Viaduct E (E7) The Contractor was
reminded to place chemicals in drip tray. The Contractor was
reminded to clear general refuse. Viaduct E (E12)
The Contractor was
reminded to provide absorption pad nearby the drip tray of the generator. |
Wastes generated during this reporting period include
mainly construction wastes (inert and non-inert), recyclable materials,
chemical waste and marine sediment.
Reference has been made to the waste flow table prepared by the
Contractor (Appendix K). The quantities of different types of wastes
are summarized in Table 2.16.
Table
2.16 Quantities of Different Waste Generated in the Reporting Period
Month / Year |
Inert Construction Waste (a)
(m3) |
Imported Fill (m3) |
Inert Construction Waste
Re-used (m3) |
Non-inert Construction Waste (b)
(kg) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
Marine Sediment (m3) |
||||||||
Category L |
Category M |
||||||||||||||
December
2016 |
3,397 |
0 |
732 |
130,900 |
63 |
0 |
990 |
0 |
|
||||||
January
2017 |
4,118 |
0 |
474 |
99,840 |
140 |
3,400 |
0 |
0 |
|
||||||
February
2017 |
4,869 |
0 |
166 |
127,270 |
91 |
0 |
0 |
0 |
|
||||||
Total |
12,384 |
0 |
1,372 |
358,010 |
294 |
3,400 |
990 |
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.
The status of environmental licensing and permit is
summarized in Table 2.17 below.
Table 2.17 Summary of Environmental Licensing and
Permit Status
License/ Permit |
License or Permit No. |
Date of
Issue |
Date of
Expiry |
License/
Permit Holder |
Remarks |
|
Environmental Permit |
EP-353/2009/K |
11-Apr-16 |
N/A |
HyD |
Hong Kong Boundary Crossing
Facilities |
|
Environmental Permit |
EP-354/2009/D |
13-Mar-15 |
N/A |
HyD |
Tuen Mun-
Chek Lap Kok Link |
|
Construction Dust Notification |
361571 |
05-Jul-13 |
N/A |
GCL |
|
|
Construction Dust Notification |
362093 |
17-Jul-13 |
N/A |
GCL |
For Area 23 |
|
Chemical Waste Registration |
5213-951-G2380-17 |
12-Jun-14 |
N/A |
GCL |
Viaducts A, B, C, D & E |
|
Chemical Waste Registration |
5213-961-G2380-13 |
10-Oct-13 |
N/A |
GCL |
Chemical waste produced in
Contract No. HY/2012/07 (Area 1
adjacent to Cheng Tung Road, Siu Ho Wan) |
|
Chemical Waste Registration |
5213-961-G2380-14 |
10-Oct-13 |
N/A |
GCL |
Chemical waste produced in
Contract No. HY/2012/07 (Area 2
adjacent to Cheung Tung Road, Pak Mong Village) |
|
Chemical Waste Registration |
5213-974-G2588-03 |
04-Nov-13 |
N/A |
GCL |
Chemical waste produced in
Contract No. HY/2012/07 (WA5 adjacent
to Cheung Tung Road, Yam O) |
|
Construction
Waste Disposal Account |
7017735 |
10-Jul-13 |
N/A |
GCL |
- |
|
Construction
Waste Disposal Account |
7019470 |
03-Mar-14 |
N/A |
GCL |
Vessel CHIT Account |
|
Waste Water Discharge License |
WT00019017-2014 |
13-May-14 |
31-May-19 |
GCL |
Discharge for marine portion |
|
Waste Water Discharge License |
WT00019018-2014 |
13-May-14 |
31-May-19 |
GCL |
Discharge for land portion |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RS1045-16 |
14-Oct-16 |
13-Apr-17 |
GCL |
For Broad
Permit |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RS1309-16 |
20-Dec-16 |
19-Jun-17 |
GCL |
Broad Permit for Whole Site Areas |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RS0718-16 |
13-Jul-16 |
13-Jan-17 |
GCL |
Pre-casted pile cap shell
installation at E10-E13 |
|
Construction Noise Permit for night works and works in general
holidays |
GW-RS1044-16 |
14-Oct-16 |
13-Apr-17 |
GCL |
Pre-casted
pile cap shell installation at E8-E13 |
|
Construction Noise Permit for night works and works in general
holidays |
GW-RS0082-17 |
15-Feb-17 |
31-Mar-17 |
GCL |
Water
Pipe Works at Tung Chung |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RW0339-16 |
17-Jun-16 |
19-Dec-16 |
GCL |
General works at WA5 |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RW0708-16 |
20-Dec-16 |
18-Jun-17 |
GCL |
General works at WA5 |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RS1159-16 |
24-Nov-16 |
28-Feb-17 |
GCL |
Broad Permit for Segment
Launching at Land Portion |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RS1158-16 |
24-Nov-16 |
31-Dec-16 |
GCL |
Contingency plan for DN1000 works at Tung Chung Seafront Road |
|
Marine
Dumping Permit |
EP-MD-17-115 |
20-Oct-16 |
31-Dec-16 |
GCL |
For dumping Type I sediment |
|
Marine Dumping Permit |
EP-MD-17-153 |
01-Jan-17 |
30-Jun-17 |
GCL |
For dumping Type I sediment |
|
Marine Dumping
Permit |
EP-MD-17-141 |
24-Nov-16 |
31-Dec-16 |
GCL |
For dumping Type I (Dedicated Site) and Type II sediment |
|
Marine Dumping
Permit |
EP-MD-17-154 |
01-Jan-17 |
31-Jan-17 |
GCL |
For dumping Type I (Dedicated Site) and Type II sediment |
|
Marine
Dumping Permit |
EP-MD-17-168 |
01-Feb-17 |
28-Feb-17 |
GCL |
For dumping Type I (Dedicated
Site) and Type II sediment |
|
Table
2.18 Comparison between Quarterly Mean and Ambient Mean Values of
Depth-averaged Suspended Solids
Station |
Baseline Mean |
Ambient Mean (a) |
Quarterly
Mean (December 2016 to February 2017) |
|||
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
|
CS(Mf)3 |
9.2 |
12.8 |
12.0 |
16.6 |
10.4 |
10.1 |
CS(Mf)5 |
9.2 |
11.5 |
11.9 |
14.9 |
10.5 |
10.4 |
SR4 |
10.3 |
12.3 |
13.4 |
16.0 |
10.1 |
10.3 |
SR4a |
9.1 |
9.8 |
11.9 |
12.7 |
10.1 |
10.1 |
IS8 |
11.3 |
13.5 |
14.6 |
17.6 |
10.1 |
10.3 |
IS(Mf)9 |
10.9 |
14.3 |
14.2 |
18.5 |
10.4 |
10.0 |
IS(Mf)16 |
11.4 |
10.3 |
14.8 |
13.4 |
10.1 |
10.1 |
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.
There were two (2) complaints received in the
reporting period. One complaint was
received from EPD on 13 December 2016 regarding hammering noise nuisance
generated during midnights in the reporting period. Another complaint was received from EPD on 13
January 2017 regarding constructional vessels and silt curtain found within the
boundary of Brothers Marine Park in the reporting period. Upon investigation, the two complaints are
considered not related to this Project. Statistics on complaint, notification of
summons of successful prosecution are summarized in Appendix L.
March 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
April 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
May 2017
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment.
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
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.
The Thirteenth Quarterly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 December
2016 to 28 February 2017, in accordance with the Updated EM&A Manual and
the requirements of the Environmental
Permits (EP-354/2009/D and EP-353/2009/K).
Neither Action Level nor Limit Level exceedances were
observed for air quality, noise and water quality monitoring in this reporting
period.
A total of seventeen (17) groups of sixty-two (62)
Chinese White Dolphins were sighted during the six sets of survey from December
2016 to February 2017. One (1) Limit Level
exceedance was recorded for the quarterly dolphin monitoring data between December
2016 and February 2017, no unacceptable impact from the activities of this
Contract on Chinese White Dolphins was noticeable from the general observations. It is critical to monitor the dolphin usage
in North Lantau region in the upcoming quarters, to determine whether the
dolphins are continuously affected by the various construction activities in
relation to the HZMB-related works, and whether suitable mitigation measure can
be applied to revert the situation.
Environmental site inspection was carried out 13 times
in the reporting period. Recommendations
on remedial actions were given to the Contractor for the deficiencies
identified during the site audits.
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.
([1]) Agreement No. CE 35/2011 (EP) Baseline Environmental Monitoring for Hong Kong -
Zhuhai - Macao Bridge Hong Kong Projects - Investigation. Baseline Environmental Monitoring Report (Version C). Submitted on 8 March 2012 and subsequently
approved by EPD.