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 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
Sixteenth Quarterly EM&A Report presenting the EM&A works carried out
during the period from 1 September 2017 to 30 November 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:
September 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
Installation of pier head and deck segments; and
·
Slope work of Viaducts A, B & C.
October 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
Installation of pier head and deck segments; and
·
Slope work of Viaducts A, B & C.
November 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
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 ([1]) 38 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
Ninety-one (91)
Action Level of Dissolved Oxygen (DO) exceedances, eight (8) Action Level of
Suspended Solids (SS) exceedances and one (1) Limit Level of Turbidity
exceedance were recorded for water quality impact 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 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.
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 was one
(1) complaint received from EPD on 24 November 2017 regarding construction dust
nuisance at Hong Kong Boundary Crossing Facilities of Hong Kong-Zhuhai-Macau
Bridge Projects in the reporting period.
Upon investigation, there is no evidence to indicate that the complaint
case is related to this Contract.
There was no
notification of summons or successful prosecution recorded in the reporting
period
Reporting Change
There was no
reporting change in this reporting period.
Upcoming Works for the Next
Reporting Period
Works to be
undertaken in the coming quarter include the following:
December 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
Installation of pier head and deck segments; and
·
Slope work of Viaducts A, B & C.
January 2018
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Installation of pier head and deck segments;
·
Asphalt paving;
·
Sign gantries construction;
·
Parapet installation; and
·
Slope work of Viaducts A, B, C & D.
February 2018
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Installation of pier head and deck segments;
·
Asphalt paving;
·
Sign gantries construction;
·
Parapet installation; and
·
Slope work of Viaducts A, B, C & D.
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 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 |
HyD (Highways Department) |
Project Coordinator |
Stanley Chan |
2762 3406 |
3188 6614 |
|
Senior Engineer |
Steven Shum |
2762 4133 |
3188 6614 |
SOR (AECOM Asia Company Limited) |
Chief Resident Engineer |
Daniel Ip |
3553 3800 |
2492 2057 |
|
Resident Engineer |
Kingman Chan |
3691 3950 |
3691 2899 |
ENPO / IEC (Ramboll 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 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
Installation of pier head and deck segments; and
·
Slope work of Viaducts A, B & C.
October 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
Installation of pier head and deck segments; and
·
Slope work of Viaducts A, B & C.
November 2017
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Launching gantry operation
·
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.
Figure 1.3 Locations of Construction Activities in the Reporting Period
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 ([2])
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 |
6, 12, 18, 21 and 27 September 2017 3, 9, 12, 18, 24 and 30 October 2017 2, 8, 14, 20, 23 and 29 November 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 Forty-seventh
to Forty-ninth 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 2017 |
ASR 8A |
85 |
22-169 |
394 |
500 |
ASR 9 |
99 |
21-206 |
393 |
500 |
|
October 2017 |
ASR 8A |
69 |
22-156 |
394 |
500 |
ASR 9 |
77 |
28-140 |
393 |
500 |
|
November 2017 |
ASR 8A |
82 |
33-165 |
394 |
500 |
ASR 9 |
83 |
35-148 |
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 2017 |
ASR 8A |
33 |
17-50 |
178 |
260 |
ASR 9 |
37 |
22-61 |
178 |
260 |
|
October 2017 |
ASR 8A |
60 |
21-102 |
178 |
260 |
ASR 9 |
59 |
28-93 |
178 |
260 |
|
November 2017 |
ASR 8A |
64 |
30-109 |
178 |
260 |
ASR 9 |
59 |
35-92 |
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 for 1-hour TSP and 24-hour TSP
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 ([3])
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 |
6, 12, 18, 21 and 27 September 2017 3, 9, 12, 18, 24 and 30 October 2017 2, 8, 14, 20, 23 and 29 November 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 Manual was relocated to NSR1A. |
Table 2.6 Noise Monitoring Equipment
Equipment |
Brand
and Model |
Integrated Sound Level Meter |
Rion NL-52 |
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 Forty-seventh to Forty-ninth 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 2017 |
64 |
62-67 |
75 |
October 2017 |
63 |
62-64 |
75 |
November 2017 |
63 |
62-64 |
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 ([4])
are adopted for this Project. Baseline
water quality monitoring was conducted at station SR4a from 29 August to 24
September 2013.
Due to
Three-Runway System (3RS) marine construction works, an alternative water
quality control station CS(Mf)3(N) was proposed to replace control station
CS(Mf)3. The Proposal of Alternative Water Quality Monitoring Station ([5]) was submitted to EPD on 31 March 2017 and granted
on 6 April 2017. Water quality monitoring at CS(Mf)3(N) is
undertaken since 2 May 2017. The
locations of the monitoring stations under the Contract are shown in Figure 2.3 and Table
2.8.
Table 2.8 Locations of Water Quality Monitoring Stations
and the Corresponding Monitoring Requirements
Station
ID |
Type |
Coordinates |
*Parameters,
unit |
Depth |
Frequency |
|
|
|
Easting |
Northing |
|
|
|
IS(Mf)9 |
Impact Station (Close to HKBCF construction site) |
813273 |
818850 |
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(N) |
Control Station |
808814 |
822355 |
|||
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. Water Quality Monitoring Station CS(Mf)3 was
relocated to CS(Mf)3(N) since 2 May 2017. |
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
|
Multi-parameters (Dissolved Oxygen, Salinity, Turbidity,
Temperature, pH) |
YSI ProDSS / YSI 6920 V2 Sonde |
|
|
Positioning Equipment |
Furuno GP-170 |
Water Depth Detector |
Lowrance Mark 5x / Garmin Striker 4 |
Water Sampler |
WildCo Vertical Alpha Bottles 1120-2.2L /1120-3.2L Aquatic Research Instrument Vertical/Horizontal Point Water Sampler
2.2L / 3.0L |
The schedules
for water quality monitoring in the reporting quarter are provided in Appendix E.
Water quality monitoring on 4 September 2017 was canceled due to adverse
weather.
In this
reporting period, a total of 38 monitoring events for impact water quality
monitoring were conducted at 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 Forty-seventh
to Forty-ninth Monthly EM&A
Reports.
Ninety-one (91)
Action Level of Dissolved Oxygen (DO) exceedances, eight (8) Action Level of
Suspended Solids (SS) exceedances and one (1) Limit Level of Turbidity
exceedance were recorded for water quality impact monitoring in the reporting
period. Actions were taken in accordance
with the Event Action Plan as 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 ([6]).
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 |
805476 |
820800 |
14 |
Start Point |
817537 |
820220 |
2 |
End Point |
805476 |
826654 |
14 |
End Point |
817537 |
824613 |
3 |
Start Point |
806464 |
821150 |
15 |
Start Point |
818568 |
820735 |
3 |
End Point |
806464 |
822911 |
15 |
End Point |
818568 |
824433 |
4 |
Start Point |
807518 |
821500 |
16 |
Start Point |
819532 |
821420 |
4 |
End Point |
807518 |
829230 |
16 |
End Point |
819532 |
824209 |
5 |
Start Point |
808504 |
821850 |
17 |
Start Point |
820451 |
822125 |
5 |
End Point |
808504 |
828602 |
17 |
End Point |
820451 |
823671 |
6 |
Start Point |
809490 |
822150 |
18 |
Start Point |
821504 |
822371 |
6 |
End Point |
809490 |
825352 |
18 |
End Point |
821504 |
823761 |
7 |
Start Point |
810499 |
822000* |
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 |
821176 |
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 |
24 |
Start Point |
805476 |
815900 |
12 |
End Point |
815542 |
824882 |
24 |
End Point |
805476 |
819100 |
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 802.12
km
of survey effort was collected, with 96.0% 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,
297.00 km and 505.12 km of survey effort were conducted in NEL and NWL survey
areas respectively. The total survey
effort conducted on primary lines was 578.16 km, while the effort on secondary
lines was 223.96 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 September to November 2017, a total of thirteen
(13) groups of 50 Chinese White Dolphins were sighted. All dolphin sightings were made during
on-effort, while twelve of the thirteen 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 of 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: 15th/ 18th Sep 2017 |
0.0 |
0.0 |
Set 2: 22nd / 29th Sep 2017 |
0.0 |
0.0 |
|
Set 3: 4th /9th Oct 2017 |
0.0 |
0.0 |
|
Set 4: 18th / 26th Oct 2017 |
0.0 |
0.0 |
|
Set 5: 1st / 8th Nov 2017 |
0.0 |
0.0 |
|
Set 6: 17th /24th Nov 2017 |
0.0 |
0.0 |
|
NWL |
Set 1: 15th/ 18th Sep 2017 |
0.00 |
0.00 |
Set 2: 22nd / 29th Sep 2017 |
3.63 |
16.34 |
|
Set 3: 4th /9th Oct 2017 |
1.86 |
9.30 |
|
Set 4: 18th / 26th Oct 2017 |
4.89 |
4.89 |
|
Set 5: 1st / 8th Nov 2017 |
4.99 |
26.60 |
|
Set 6: 17th /24th Nov 2017 |
3.33 |
5.00 |
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 2017 |
September -November 2011 |
September – November 2017 |
September -November 2011 |
|
Northeast
Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest
Lantau |
3.12 ± 1.91 |
9.85 ± 5.85 |
10.35 ± 9.66 |
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 2017 |
September - November 2011 |
|
Overall |
3.85 ± 3.39 (n = 13) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
--- |
3.18 ± 2.16 (n = 17) |
Northwest Lantau |
3.85 ± 3.39 (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 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 6, 13, 20 and 28 September
2017, 4, 11, 18, 26 and 31 October
2017, and 8, 14, 22 and 30
November 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 |
6
September
2017 |
Viaduct B (Pier B17) Chemical container
was observed not placed in drip tray. General refuse in the
skip should be cleared. |
Viaduct B (Pier B17) The Contractor was
reminded to place chemical container in drip tray. The Contractor was
reminded to clear general refuse in the skip. |
13 September 2017 |
Viaduct E (Pier E10) Chemical containers on
the deck were observed not placed in drip tray. Stagnant water was
observed in drip tray. Tarpaulin should be
provided to cover the cement bags (over 20 bags). |
Viaduct E (Pier E10) The Contractor was reminded to place chemical containers in drip tray. The Contractor was
reminded to clear stagnant water in drip tray. The Contractor was
reminded to provide tarpaulin and cover cement bags. |
20 September 2017 |
Southern Landfall Portion A (HKBCF Portion S-c) Chemical
containers were observed not placed in drip tray. Watering on exposed road should be maintained for
dust suppression. |
Southern Landfall Portion A (HKBCF Portion S-c) The Contractor was reminded to maintain watering
on exposed road. The Contractor was
reminded to place chemical containers in drip tray. |
28 September 2017 |
Viaduct E (Pier E13CD) Oil stain was observed
near the generator. Stagnant water was
observed in drip tray. Southern Landfall Portion A (HKBCF Portion S-c) Watering should be applied during pile head
breaking works. |
Viaduct E (Pier E13CD) The Contractor was
reminded to clear oil stain near the generator. The Contractor
was reminded to clear stagnant
water in drip tray. Southern Landfall Portion A (HKBCF Portion S-c) The Contractor was
reminded to apply watering during pile head breaking works. |
4
October
2017 |
Viaduct E (Pier E12) Oil stain was
observed near the generator. |
Viaduct B (Pier B17) The Contractor was
reminded to clear the oil as chemical waste. |
11 October 2017 |
Viaduct B (Pier B18) Chemical container was
observed not placed in drip tray. EP should be replaced
near the site entrance. |
Viaduct B (Pier B18) The Contractor was reminded to place chemical container in drip tray. The Contractor was reminded
to replace the missing pages of EP near the site entrance. |
18 October 2017 |
Viaduct E (Pier E13AB) Oil stain was
observed near the drip tray. Drip tray was
observed not properly plugged. |
Viaduct B (Pier B18) The Contractor was reminded to clear oil stain
near to drip tray. The Contractor was
reminded to plug the drip tray properly. |
26 October 2017 |
Viaduct A (Pier A10) Chemical waste
should be handled with care and disposed of at designated area. Viaduct A (Ramp A) (Area A) Chemical containers
were observed not placed in drip tray. General refuse
should be cleared. NRMM label was
observed not provided on the excavator. Viaduct E (Pier E8) Drip tray was
observed not properly plugged. |
Viaduct A (Pier A10) The Contractor
was reminded to handle chemical waste with care and disposed them of at
designated area. Viaduct A (Ramp A) (Area A) The Contractor was reminded to place chemical container in drip tray. The Contractor
was reminded to clear general refuse. The Contractor
was reminded to provide NRMM label on the excavator. Viaduct E (Pier E8) The Contractor was
reminded to plug the drip tray. |
31 October 2017 |
Viaduct B (Pier B16) General refuse near the
skip should be cleared. Chemical
container was observed not placed in drip tray. |
Viaduct E (Pier E13CD) The Contractor was
reminded to clear general refuse near the skip. The Contractor
was reminded to place chemical container in drip tray. |
8
November 2017 |
Viaduct E (Pier E12) Accumulated
refuse should be cleared. Chemical container was observed
not placed in drip tray. |
Viaduct E (Pier E12) The Contractor was reminded to clear
accumulated refuse. The Contractor was reminded to place chemical container in drip tray. |
14 November 2017 |
Viaduct A (Ramp A) (Area A) Accumulated refuse
should be cleared. Chemical container was
observed not placed in drip tray. Drip tray should be
provided for chemicals used in wetsep. |
Viaduct A (Ramp A) (Area A) The Contractor was reminded to clear
accumulated refuse. The Contractor was reminded to place chemical container in drip tray. The Contractor
was reminded to provide drip tray for chemicals used in wetsep. |
22 November 2017 |
Viaduct E (Pier E13AB) NRMM label on
the generator should be replaced. Viaduct E (Pier E10) Stagnant water
was observed in the drip tray. NRMM label on
the generator should be replaced. |
Viaduct E (Pier E13AB) The Contractor was reminded to replace NRMM label
on the generator. Viaduct E (Pier E10) The Contractor was
reminded to clear stagnant water in the drip tray. The Contractor was reminded to replace NRMM label on the
generator. |
30 November 2017 |
Viaduct D (Ramp D) (Area I) Watering
should be provided on unpaved road. Chemical
containers were observed not placed in drip tray. Viaduct D (Pier D6) Chemical containers
were observed not placed in drip tray. |
Viaduct D (Ramp D) (Area I) The Contractor
was reminded to maintain watering on unpaved road. The Contractor was reminded to place chemical container in drip tray. Viaduct D (Pier D6) The Contractor was reminded to place chemical container in drip tray. |
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 C&D Materials (a) (m3) |
Imported Fill (m3) |
Inert Construction Waste Re-used (m3) |
Non-inert Construction Waste (b)
(kg) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
Marine Sediment (m3) |
||
Category L |
Category M (Mp & Mf) |
Category H |
|||||||
September2017 |
3,142 |
0 |
0 |
185,420 |
18,100 |
0 |
1,517 |
1,047 |
127 |
October 2017 |
3,005 |
0 |
0 |
172,690 |
63 |
0 |
0 |
0 |
0 |
November 2017 |
3,354 |
0 |
0 |
159,650 |
5,868 |
5,400 |
0 |
0 |
0 |
Notes: |
|||||||||
(a)
Inert construction wastes include hard rock and large broken concrete,
and materials disposed as public fill. (b)
Non-inert construction wastes include general refuse disposed at landfill. (c)
Recyclable materials include metals, paper, cardboard, plastics,
timber, felled trees and others. |
The Contractor
was advised to properly maintain on site C&D materials and waste
collection, sorting and recording system, dispose of C&D materials and
wastes at designated ground and maximize reuse/ recycle of C&D materials
and wastes. The Contractor was also
reminded to properly maintain the site tidiness and dispose of the wastes
accumulated on site regularly and properly.
For chemical
waste containers, the Contractor was reminded to treat properly and store
temporarily in designated chemical waste storage area on site in accordance
with the Code of Practice on the
Packaging, Labelling and Storage of Chemical Wastes.
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-RW0294-17 |
19-Jun-17 |
18-Dec-17 |
GCL |
General works at WA5 |
|
|||||
Construction Noise Permit for night
works and works in general holidays |
GW-RS0540-17 |
20-Jun-17 |
15-Dec-17 |
GCL |
Broad
Permit for Whole Site Areas |
|
|||||
Construction Noise Permit for night works
and works in general holidays |
GW-RS0639-17 |
31-Jul-17 |
29-Sep-17 |
GCL |
Broad
Permit for Segment Launching at Land Portion |
|
|||||
Construction Noise Permit for night
works and works in general holidays |
GW-RS0829-17 |
29-Sep-17 |
30-Nov-17 |
GCL |
Broad
Permit for Segment Launching at Land Portion |
|
|||||
Construction Noise Permit
for night works and works in general holidays |
GW-RS0668-17 |
7-Aug-17 |
6-Feb-18 |
GCL |
Pre-casted pile cap shell
installation at E8-E13 |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS0954-17 |
5-Nov-17 |
30-Nov-17 |
GCL |
Contingency
plan for DN800T works at Tung Chung Seafront Road |
|
|||||
Construction
Noise Permit for percussive piling |
PP-RS0010-17 |
12-Jun-17 |
15-Sep-17 |
GCL |
Percussive piling at Portion
A |
|
|||||
Marine
Dumping Permit |
EP/MD/18-031 |
01-Jul-17 |
31-Dec-17 |
GCL |
For
dumping Type I sediment |
|
|||||
Marine Dumping Permit |
EP/MD/18-061 |
16-Sep-17 |
15-Oct-17 |
GCL |
For dumping Type I and Type
II sediment |
|
|||||
Ninety-one (91)
Action Level of Dissolved Oxygen (DO) exceedances, eight (8) Action Level of
Suspended Solids (SS) exceedances and one (1) Limit Level of Turbidity
exceedance were recorded for water quality impact monitoring in the reporting
period. The
exceedances were considered not related to this Contract upon further
investigation and the investigation reports are presented in Appendix L.
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 2017) |
|||
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
|
CS(Mf)3(N) |
9.2 |
12.8 |
12.0 |
16.6 |
8.8 |
10.1 |
CS(Mf)5 |
9.2 |
11.5 |
11.9 |
14.9 |
5.8 |
6.9 |
SR4 |
10.3 |
12.3 |
13.4 |
16.0 |
8.3 |
12.1 |
SR4a |
9.1 |
9.8 |
11.9 |
12.7 |
9.3 |
12.5 |
IS8 |
11.3 |
13.5 |
14.6 |
17.6 |
8.1 |
12.5 |
IS(Mf)9 |
10.9 |
14.3 |
14.2 |
18.5 |
6.8 |
10.8 |
IS(Mf)16 |
11.4 |
10.3 |
14.8 |
13.4 |
7.0 |
8.5 |
Notes: |
||||||
(a)
Ambient
mean value is defined as a 30% increase of the baseline mean value (b)
Water Quality
Monitoring Station CS(Mf)3 was relocated to CS(Mf)3(N) since 2 May 2017. |
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 was one
(1) complaint received from EPD on 24 November 2017 regarding construction dust
nuisance at Hong Kong Boundary Crossing Facilities of Hong Kong-Zhuhai-Macau
Bridge Projects in the reporting period.
Upon investigation, there is no evidence to indicate that the complaint
case is related to this Contract.
There was no
notification of summons or successful prosecution recorded in the reporting
period.
Statistics on
complaint, notification of summons of successful prosecution are summarized in Appendix L.
Land-based Works
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Road works along
North Lantau Highway;
· Launching gantry
operation
· Installation of
pier head and deck segments; and
· Slope work
of Viaducts A, B & C.
January 2018
Land-based Works
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Road works along
North Lantau Highway;
· Installation of
pier head and deck segments;
· Asphalt paving;
· Sign gantries
construction;
· Parapet
installation; and
· Slope work
of Viaducts A, B, C & D.
February 2018
Land-based Works
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Road works along
North Lantau Highway;
· Installation of
pier head and deck segments;
· Asphalt paving;
· Sign gantries
construction;
· Parapet
installation; and
· Slope work
of Viaducts A, B, C & D.
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 Sixteenth
Quarterly EM&A Report presents the findings of the EM&A activities
undertaken during the period from 1 September to 30 November 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 and noise
impact monitoring in this reporting period.
Ninety-one (91)
Action Level of Dissolved Oxygen (DO) exceedances, eight (8) Action Level of
Suspended Solids (SS) exceedances and one (1) Limit Level of Turbidity
exceedance were recorded for water quality impact monitoring in the reporting
period.
A total of
thirteen (13) groups of fifty (50) Chinese White Dolphins were sighted during
the six sets of survey from September to November 2017. One (1) Limit Level exceedance was recorded
for the quarterly dolphin monitoring data between September to November 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.
There was one
(1) complaint received from EPD on 24 November 2017 regarding construction dust
nuisance at Hong Kong Boundary Crossing Facilities of Hong Kong-Zhuhai-Macau
Bridge Projects in the reporting period.
There was no
notification of summons or successful prosecution recorded in the reporting
period.
The monitoring
programme has been reviewed and was considered as adequate to cater for the
nature of works in progress. Change to
the monitoring programme was thus not recommended at this stage. The monitoring programme will be evaluated as
appropriate in the next reporting period.
The ET will keep track on the construction works to confirm compliance
of environmental requirements and the proper implementation of all necessary
mitigation measures.
([1]) Results of impact water quality
monitoring were adopted from the published EM&A data of Contract No. HY/2010/02 HKBCF- Reclamation Works.
Available at: http://www.hzmbenpo.com/
([2]) 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.
(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.
([4])
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.