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 Twelfth Quarterly EM&A Report
presenting the EM&A works carried out during the period from 1 September to
30 November 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:
September 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.
October 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.
November 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.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP monitoring 16 sessions
1-hour TSP monitoring 16 sessions
Noise monitoring 16
sessions
Water quality monitoring 38 sessions
Dolphin monitoring 6
sessions
Joint Environmental site inspection 14 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 September and November
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 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 Highways Department regarding improper wastewater discharge of
two flattop barges on 22 September 2016.
Another complaint was received from EPD with regard to muddy propeller
wash by marine travel on 9 November 2016.
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:
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.
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 |
September 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.
October 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.
November 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.
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 |
5, 8, 14, 20,
26 and 29 September 2016 5, 11, 17
and 26 October 2016 1, 7, 10,
16, 22 and 28 November 2016 |
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. Air Quality Monitoring on 20 October
2016 was postponed to 26 October 2016 due to adverse weather conditions.
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-fifth
to Thirty-seventh 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) |
September
2016 |
ASR 8A |
84 |
48
– 177 |
394 |
500 |
ASR 9 |
110 |
53
- 205 |
393 |
500 |
|
October 2016 |
ASR 8A |
77 |
43
– 107 |
394 |
500 |
ASR 9 |
82 |
54
- 122 |
393 |
500 |
|
November
2016 |
ASR 8A |
64 |
43
- 91 |
394 |
500 |
ASR 9 |
101 |
56
- 172 |
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) |
September
2016 |
ASR 8A |
60 |
44
– 83 |
178 |
260 |
ASR 9 |
71 |
50
– 106 |
178 |
260 |
|
October 2016 |
ASR 8A |
49 |
43
– 52 |
178 |
260 |
ASR 9 |
59 |
48
- 67 |
178 |
260 |
|
November
2016 |
ASR 8A |
51 |
45
– 60 |
178 |
260 |
ASR 9 |
62 |
54
- 66 |
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 16 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 |
5, 8, 14,
20, 26 and 29 September 2016 5, 11, 17
and 26 October 2016 1, 7, 10,
16, 22 and 28 November 2016 |
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. Noise Monitoring on 20 October 2016 was
postponed to 26 October 2016 due to adverse weather conditions.
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-fifth to Thirty-seventh 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) |
September
2016 |
60 |
58
- 62 |
75 |
October 2016 |
61 |
60
- 62 |
75 |
November
2016 |
61 |
60
- 62 |
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
|
Thermo Scientific Orion 2 Star/ 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 canceled on
18 October 2016 due to adverse weather conditions.
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-fifth
to Thirty-seventh Monthly EM&A
Reports.
In this reporting period, a total of 38 monitoring
events were undertaken with no Action Level and Limit Level exceedance recorded
at the monitoring station in the reporting period. No action is thus required to be undertaken
in accordance with the Event Action Plan presented in Appendix J.
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 |
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 |
|
|
|
|
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 892.57 km of survey effort was collected, with 96.5% 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, 341.30 km and 551.27 km
of survey effort were conducted in NEL and NWL survey areas respectively. The total survey effort conducted on primary
lines was 640.35 km, while the
effort on secondary lines was 252.22 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 September
to November 2016, a
total of thirteen (13) groups of 48 Chinese White Dolphins were sighted. All dolphin sightings were made during
on-effort, while all except one 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 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: 13th / 14th
Sept 2016 |
0.0 |
0.0 |
Set 2: 21st / 23th
Sept 2016 |
0.0 |
0.0 |
|
Set 3: 4th /7th
Oct 2016 |
0.0 |
0.0 |
|
Set 4: 11th / 13th
Oct 2016 |
0.0 |
0.0 |
|
Set 5: 2nd / 7th
Nov 2016 |
0.0 |
0.0 |
|
Set 6: 18th /22nd
Nov 2016 |
0.0 |
0.0 |
|
NWL |
Set 1: 13th / 14th
Sept 2016 |
0.0 |
0.0 |
Set 2: 21st / 23th
Sept 2016 |
5.75 |
30.17 |
|
Set 3: 4th /7th
Oct 2016 |
4.13 |
9.64 |
|
Set 4: 11th / 13th
Oct 2016 |
2.85 |
8.54 |
|
Set 5: 2nd / 7th
Nov 2016 |
1.66 |
1.66 |
|
Set 6: 18th /22nd
Nov 2016 |
2.79 |
15.34 |
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) |
||
September – November 2016 |
September -November 2011 |
September – November 2016 |
September -November 2011 |
|
Northeast
Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest
Lantau |
2.86 ± 1.98 |
9.85 ± 5.85 |
10.89 ± 10.98 |
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 |
|
September - November 2016 |
September - November 2011 |
|
Overall |
3.69 ± 2.87 (n = 13) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
--- |
3.18 ± 2.16 (n = 17) |
Northwest Lantau |
3.69 ± 2.87 (n = 13) |
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 NEL, 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.
Fourteen (14) site inspections were carried out in the reporting quarter
on 2, 7, 14,
21 and 29 September 2016, 5,
12, 19 and 27 October 2016, 2,
9, 17, 24 and 30 November 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 |
2 September
2016 |
Pier C15
Refuse was found in the tree protected area. Pier C13
Chemical container was not well labelled.
The checklist for WetSep was not displayed. Abutment C Soil stockpile was not well covered. |
Pier C15
Refuse should be properly stored. Pier C13
Chemical container should be properly labelled.
Checklist for WetSep should be displayed. Abutment C Soil stockpile should be well covered. |
7 September
2016 |
Seafront Some chemical containers were not placed in drip
tray. Pier E6 A
chemical container was not placed in drip tray.
A tarpaulin sheet for grouting enclosure was
damaged. |
Seafront Chemical containers should be placed in drip
tray. Pier E6 Chemical
container should be placed in drip tray. The
tarpaulin sheet for grouting enclosure should be repaired. |
14 September
2016 |
Site Access
5A (nearby Pier D11) The unpaved area was dry. Dustbin
was placed too close to retained tree. Refuse
was not properly stored. |
Site Access
5A (nearby Pier D11) The unpaved area should be watered regularly. Dustbin
should be placed away from natural habitat. Refuse
should be properly stored. |
21 September
2016 |
Area 2 Soil stockpile was not well covered. Viaduct B
(Marine) Chemical
containers were not placed in drip dray. |
Area 2 Soil stockpile should be well covered. Viaduct B
(Marine) Chemical
containers should be placed in drip dray. |
29 September
2016 |
Pier C13
A chemical container was not placed in drip tray.
Soil stockpile was not well covered. Unpaved area was dry. |
Pier C13
Chemical container should be placed in drip tray.
Soil stockpile should be well covered. Watering should be applied regularly. |
5 October
2016 |
Slope BC9
Checklist for a Wetsep was not displayed. Pier B17
Soil stockpile was not well covered. Unpaved area was dry. |
Slope BC9
Checklist for Wetsep should be displayed. Pier B17
Soil stockpile should be well covered. Watering should be applied regularly. |
12 October
2016 |
Pier E11 Chemical container should be placed in drip tray. Oily
water in drip tray was observed. Sand
bunds were missing on the perimeter at the pier. |
Pier E11 The Contractor was reminded to remove the
chemical container. The
Contractor was reminded to clear the oil water. The
Contractor was reminded to provide sand bunds on the perimeter at the pier. |
19 October
2016 |
Viaduct D
(D18) Exposed slope should be fully covered by
tarpaulin. The
Wetsep checklist should be updated. Chemical
containers should be removed and placed in drip tray. |
Viaduct D
(D18) The Contractor was reminded to fully cover the
exposed slope. The
Contractor was reminded to update the Wetsep
checklist. The
Contractor was reminded to remove the chemical containers and place in drip
tray. |
27 October
2016 |
Pier D7 Accumulated general refuse was observed. |
Pier D7 The Contractor was reminded to clear the
accumulated general refuse. |
2 November
2016 |
Pier E12
Chemical containers should be placed in drip tray.
Water inside drip tray should be cleared.
Air compressor was observed without NRMM labels displayed on site. |
Pier E12
The contractor was reminded to remove the chemical containers and
place them in drip tray.
The contractor was reminded to clear the water inside drip tray. The contractor was reminded to display the NRMM
label on site. |
9 November
2016 |
Viaduct C
(C17) Accumulated general refuse was observed. Viaduct D (D13) Dusty
materials near the wood chipping machine was observed |
Viaduct C
(C17) The Contractor was reminded to clear the
accumulated general refuse. Viaduct D (D13) The
Contractor was reminded to clear the dusty materials. |
17 November
2016 |
Viaduct D
(D12) Unpaved
area was dry. Viaduct D
(D13) Chemical
containers were not placed in drip tray. Viaduct D
(D18 on the deck) Chemical
containers were not placed in drip tray. Viaduct D
(D19) Wetsep checklist
was not displayed. |
Viaduct D
(D12) Watering
was applied immediately. Viaduct D
(D13) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Viaduct D
(D18 on the deck) The Contractor was reminded to
remove the chemical containers and placed them in drip tray. Viaduct D
(D19) The Contractor was reminded to
display the checklist on the Wetsep. |
24 November
2016 |
Pier E5
Accumulated general refuse was observed. Viaduct C
(C17) Construction materials were placed too close to
natural habitat. |
Pier E5
The Contractor was reminded to clear the accumulated general refuse. Viaduct C
(C17) The Contractor was reminded to clear the
construction materials from the natural habitat. |
30 November
2016 |
Viaduct E
(E6)
Oily water inside drip
tray was observed. Viaduct E
(E12)
Better housekeeping should be maintained. Seafront
Chemical containers should be moved to storage area. |
Viaduct E
(E6)
Oily water was cleared
immediately. Viaduct E
(E12)
The Contractor was reminded to keep tidy of the site
and surroundings. Seafront
The Contractor was reminded to move the chemical
containers to chemical storage area. |
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 |
||||||||||||||
September
2016 |
2,314 |
0 |
270 |
130,060 |
105 |
0 |
0 |
0 |
|
||||||
October
2016 |
2,183 |
0 |
156 |
141,300 |
28 |
0 |
0 |
0 |
|
||||||
November
2016 |
3,337 |
0 |
536 |
138,270 |
63 |
1,600 |
473 |
0 |
|
||||||
Total |
7,834 |
0 |
962 |
409,630 |
196 |
1,600 |
473 |
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-RS0383-16 |
20-Apr-16 |
19-Oct-16 |
GCL |
For Broad Permit |
|
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-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-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-RW0707-16 |
11-Jul-16 |
30-Sep-16 |
GCL |
Broad Permit for Segment
Launching at Land Portion |
|
Construction Noise Permit for
night works and works in general holidays |
GW-RS0958-16 |
15-Sep-16 |
30-Nov-16 |
GCL |
Broad Permit for Segment
Launching at Land Portion |
|
Marine
Dumping Permit |
EP/MD/17-037 |
14-Jun-16 |
13-Dec-16 |
GCL |
For dumping Type I sediment |
|
Marine
Dumping Permit |
EP/MD/17-115 |
20-Oct-16 |
31-Dec-16 |
GCL |
For
dumping Type I sediment |
|
Marine Dumping Permit |
EP/MD/17-084 |
22-Aug-16 |
30-Sep-16 |
GCL |
For
dumping Type I (Dedicated Site) and Type II sediment |
|
Marine Dumping Permit |
EP/MD/17-102 |
28-Sep-16 |
31-Oct-16 |
GCL |
For
dumping Type I (Dedicated Site) and Type II sediment |
|
Marine
Dumping Permit |
EP/MD/17-120 |
1-Nov-16 |
30-Nov-16 |
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 (September to
November 2016) |
|||
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
|
CS(Mf)3 |
9.2 |
12.8 |
12.0 |
16.6 |
10.9 |
10.8 |
CS(Mf)5 |
9.2 |
11.5 |
11.9 |
14.9 |
10.9 |
10.9 |
SR4 |
10.3 |
12.3 |
13.4 |
16.0 |
10.7 |
10.7 |
SR4a |
9.1 |
9.8 |
11.9 |
12.7 |
10.7 |
10.7 |
IS8 |
11.3 |
13.5 |
14.6 |
17.6 |
10.7 |
10.7 |
IS(Mf)9 |
10.9 |
14.3 |
14.2 |
18.5 |
10.7 |
10.7 |
IS(Mf)16 |
11.4 |
10.3 |
14.8 |
13.4 |
10.7 |
10.7 |
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.
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.
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 Twelfth Quarterly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1
September to 30 November 2016, 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 thirteen (13) groups of forty-eight (48)
Chinese White Dolphins were sighted during the six sets of survey from
September to November 2016. One (1)
Limit Level exceedance was recorded for the quarterly dolphin monitoring data
between September and November 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 14 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.