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 Eighteenth Quarterly EM&A Report presenting
the EM&A works carried out during the period from 1 March to 31 May 2018 for
the Southern Connection Viaduct Section in
accordance with the Updated EM&A Manual of the TM-CLK
Link Project. As informed by the
Contractor, major activities in the reporting period included:
March 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.
April 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
May 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP monitoring 18
sessions
1-hour TSP monitoring 18
sessions
Noise monitoring 18
sessions
Water quality monitoring 39 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 construction 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
One (1) Action Level of Suspended Solids (SS) and one
(1) Action Level of Dissolved Oxygen (DO) exceedances 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 March and May 2018. 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 no environmental complaint, 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:
June 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
July 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
August 2018
Land-based Works
· Pier
construction;
· Demolition
of marine platform;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments;
· Asphalt
paving;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers 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
Officer |
Roy Leung |
3520 0387 |
3520 0486 |
24-hour
Complaint Hotline |
|
9738 4332 |
|
|
ET (ERM-HK) |
ET Leader |
Dr. Jasmine Ng |
2271 3311 |
2723 5660 |
March 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.
April 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
May 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
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 March 2018 4, 10, 16, 19,
25 and 28 April 2018 4, 10, 16, 19,
25 and 31 May 2018 |
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 Fifty-third to Fifty-fifth Monthly EM&A Reports.
Table 2.3 Summary of 1-hour TSP Monitoring Results
in this Reporting Period
Month |
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
March 2018 |
ASR 8A |
62 |
13-137 |
394 |
500 |
ASR 9 |
108 |
20-261 |
393 |
500 |
|
April 2018 |
ASR 8A |
86 |
41-152 |
394 |
500 |
ASR 9 |
116 |
56-199 |
393 |
500 |
|
May 2018 |
ASR 8A |
86 |
14-236 |
394 |
500 |
ASR 9 |
86 |
14-200 |
393 |
500 |
Table 2.4 Summary of 24-hour TSP Monitoring
Results in this Reporting Period
Month |
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
March 2018 |
ASR 8A |
57 |
35-86 |
178 |
260 |
ASR 9 |
65 |
47-100 |
178 |
260 |
|
April 2018 |
ASR 8A |
57 |
49-72 |
178 |
260 |
ASR 9 |
64 |
39-88 |
178 |
260 |
|
May 2018 |
ASR 8A |
35 |
10-65 |
178 |
260 |
ASR 9 |
46 |
25-75 |
178 |
260 |
The major dust sources in the reporting period include
construction activities under the Contract as well as nearby traffic emissions.
All 1-hour and 24-hour TSP results were below
the Action and Limit Levels at all monitoring locations in this
reporting period. No
action is thus required to be undertaken in accordance with the Event Action
Plan presented in Appendix
J.
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 March 2018 4, 10, 16, 19,
25 and 28 April 2018 4, 10, 16, 19,
25 and 31 May 2018 |
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-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 E.
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 Fifty-third to Fifty-fifth Monthly EM&A Reports.
Table 2.7 Summary of Construction Noise Monitoring
Results at NSR1A in the Reporting Period
Month |
Average , dB(A), Leq
(30mins) |
Range, dB(A), Leq (30mins) |
Limit Level, dB(A), Leq
(30mins) |
March 2018 |
64 |
63-65 |
75 |
April 2018 |
64 |
62-65 |
75 |
May 2018 |
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 ([3])
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 ([4]) 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(N) |
Sensitive
receiver (Tai Ho Inlet) |
814705 |
817859 |
|||
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. Water Quality Monitoring Station SR4 was relocated
to SR4(N) since 2 March 2018. |
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 / YSI 6920 V2 |
|
|
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 during mid-flood
tide at all water quality monitoring stations, except CS(Mf)5, on
5 March 2018 was cancelled due to adverse weather.
In this reporting period, a total of 39 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 Fifty-third to Fifty-fifth Monthly EM&A Reports.
One (1) Action Level of Suspended Solids (SS) and one
(1) Action Level of Dissolved Oxygen (DO) exceedances 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 ([5]).
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 791.83
km of survey effort was collected, with 89.8% 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, 290.90 km
and 500.93 km of survey effort were conducted in NEL and NWL
survey areas respectively. The total
survey effort conducted on primary lines was 576.61 km,
while the effort on secondary lines was 215.22 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 March to
May 2018, a
total of nine (9) groups of 30 Chinese White Dolphins were sighted. All dolphin
sightings were made during on-effort, while eight of the nine 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: 8th/ 12th
Mar 2018 |
0.0 |
0.0 |
Set 2: 20th / 23rd
Mar 2018 |
0.0 |
0.0 |
|
Set 3: 10th /17th
Apr 2018 |
0.0 |
0.0 |
|
Set 4: 19th / 25th
Apr 2018 |
0.0 |
0.0 |
|
Set 5: 7th / 10th
May 2018 |
0.0 |
0.0 |
|
Set 6: 16th /30th
May 2018 |
0.0 |
0.0 |
|
NWL |
Set 1: 8th/ 12th
Mar 2018 |
1.73 |
5.19 |
Set 2: 20th / 23rd
Mar 2018 |
12.32 |
56.69 |
|
Set 3: 10th /17th
Apr 2018 |
0.00 |
0.00 |
|
Set 4: 19th / 25th
Apr 2018 |
3.24 |
4.87 |
|
Set 5: 7th / 10th
May 2018 |
0.00 |
0.00 |
|
Set 6: 16th /30th
May 2018 |
0.00 |
0.00 |
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) |
||
March – May 2018 |
September -November 2011 |
March – May 2018 |
September -November 2011 |
|
Northeast
Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest
Lantau |
2.88 ± 4.81 |
9.85 ± 5.85 |
11.12 ± 22.46 |
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 |
|
March to May 2018 |
September - November 2011 |
|
Overall |
3.33 ± 3.39 (n = 9) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
--- |
3.18 ± 2.16 (n = 17) |
Northwest Lantau |
3.33 ± 3.39 (n = 9) |
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. Fourteen
(14) site inspections were carried out in the reporting quarter on 1, 6, 14, 21 and 29 March 2018, 4, 9, 18 and 26 April 2018, and 2, 9, 16, 23 and 31 May 2018.
Key observations during the site inspections in this
reporting period are summarized in Table
2.15.
Table
2.15 Specific Observations Identified during the Weekly Site
Inspection in this Reporting Period
Inspection Date |
Location & Environmental Observations |
Recommendations/ Remarks |
1 March 2018 |
Viaduct E
(Pier E13AB) Chemical containers were
observed not placed in drip tray. Southern
Landfall (Portion S-c) Watering should be
provided on partially dry area. |
Viaduct E
(Pier E13AB) The Contractor was reminded to place
chemical containers in drip tray. Southern
Landfall (Portion S-c) The
Contractor was reminded to maintain watering on partially dry area. |
6 March 2018 |
Southern
Landfall (Portion S-c) A clear NRMM label should
be provided on the generator. Viaduct D (Land portion) Chemical containers were
observed not placed in drip tray. |
Southern
Landfall (Portion S-c) The Contractor was reminded to provide a clear
NRMM label on the generator. Viaduct D (Land portion) The Contractor was reminded to place
chemical containers in drip tray. |
14 March 2018 |
Viaduct E
(Pier E11) Chemical container was
observed not placed in drip tray. Viaduct E
(Pier E13) Chemical containers were
observed not placed in drip tray. |
Viaduct E
(Pier E11) The Contractor was reminded to place
chemical container in drip tray. Viaduct E
(Pier E13) The Contractor was reminded to place
chemical containers in drip tray. |
21 March 2018 |
Viaduct D
(Ramp D)(Area I) Watering should be
provided on dry area. Chemical container was
observed not placed in drip tray. Accumulated
general refuse should be cleared. |
Viaduct D
(Ramp D)(Area I) The
Contractor was reminded to maintain watering on dry area. The Contractor was reminded to place
chemical container in drip tray. The
Contractor was reminded to clear accumulated general refuse. |
29 March 2018 |
Viaduct C
(Pier C6) Wastewater on the deck
should be collected and treated. Viaduct E (Pier E1) Chemical container was
observed not placed in drip tray. Viaduct E (Pier
E10) Oil stain was observed
near the drip tray. |
Viaduct C
(Pier C6) The Contractor was reminded to collect
and treat wastewater prior to discharge. Viaduct E (Pier E1) The Contractor was reminded to place
chemical container in drip tray. Viaduct E (Pier
E10) The Contractor was reminded to clear
oil stain near the drip tray. |
4 April 2018 |
Viaduct E
(Pier E9) Chemical containers were
observed not placed in drip tray. Accumulated general
refuse should be removed. |
Viaduct E
(Pier E9) The Contractor was reminded to place
chemical containers in drip tray. The
Contractor was reminded to clear accumulated general refuse. |
9 April 2018 |
Viaduct B
(Ramp B) (Area A) Watering should be
maintained on unpaved road. Chemical containers were
observed not placed in drip tray. |
Viaduct B
(Ramp B) (Area A) The Contractor was reminded to maintain watering
on unpaved road. The Contractor was reminded to place
chemical containers in drip tray. |
18 April 2018 |
Viaduct E
(Pier E13CD) Chemical containers were
observed not placed in drip tray. Viaduct E
(Pier E12) Chemical containers were
observed not placed in drip tray. |
Viaduct E
(Pier E13CD) The Contractor was reminded to place
chemical containers in drip tray. Viaduct E
(Pier E12) The Contractor was reminded to place
chemical containers in drip tray. |
26 April 2018 |
Southern
Landfall (Portion S-c) Stagnant water in the
drip tray should be cleared. Viaduct E (Pier E12) Oil stain was observed
nearby the drip tray. Wastewater should be
collected. Viaduct E (E10) NRMM
label should be provided on the generator. |
Southern
Landfall (Portion S-c) The Contractor was reminded to clear
stagnant water in the drip tray. Viaduct E (Pier E12) The Contractor was reminded to clear
oil stain. The
Contractor was reminded to collect wastewater. Viaduct E
(Pier E10) The Contractor was reminded to provide
NRMM label on the generator. |
2 May 2018 |
Southern
Landfall (Portion A)(Portion S-c) Chemical containers were
observed not placed in drip tray. Stagnant water was
observed in the drip tray. General refuse should be
removed. |
Southern
Landfall (Portion A)(Portion S-c) The Contractor was reminded to place
chemical containers in drip tray. The Contractor was reminded to clear
stagnant water in the drip tray. The
Contractor was reminded to clear general refuse. |
9 May 2018 |
Viaduct E
(Pier E13CD) Wastewater in the drip
tray should be cleared. Chemical containers were
observed not placed in drip tray. Viaduct E Refuse in the gully
should be removed. |
Viaduct B
(Pier E13CD) The Contractor was reminded to clear wastewater
in the drip tray. The Contractor was reminded to place
chemical containers in drip tray. Viaduct E The Contractor was
reminded to remove refuse in the gully. |
16 May 2018 |
Viaduct C
(Pier C5) Chemical containers were
observed not placed in drip tray. Viaduct C
(Ramp C)(Area I) Stagnant water was
observed in the drip tray. |
Viaduct C
(Pier C5) The Contractor was reminded to place
chemical containers in drip tray. Viaduct C
(Ramp C)(Area I) The Contractor was reminded to clear
stagnant water in the drip tray. |
23 May 2018 |
Viaduct E
(Pier E7) Refuse in the gully
should be removed. Viaduct E
(Pier E10) Unauthorized chemical
containers should not be used to store chemicals and should be removed. Viaduct E
(Pier E11) General refuse should be
disposed of in the skip and removed regularly. |
Viaduct E
(Pier E7) The Contractor was reminded to remove
refuse in the gully. Viaduct E
(Pier E10) The Contractor was reminded to remove
unauthorized chemical containers. Viaduct E
(Pier E11) The Contractor was reminded to remove
general refuse on the deck. |
31 May 2018 |
Pak Mong (near
Pier B17) General refuse should be
disposed of in the skip. Viaduct E (Pier E10) Watering should be
implemented when breaking oversize concrete. Viaduct E (E11) The
opened cement bag should be covered by tarpaulin for dust suppression. |
Pak Mong (near
Pier B17) The Contractor was reminded to dispose
of the general refuse in the skip. Viaduct E (Pier E10) The Contractor was reminded to provide
watering when breaking concrete. Viaduct E
(Pier E11) The Contractor was reminded to cover
the opened cement bag by tarpaulin. |
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 |
|||||||
March 2018 |
5,916 |
1,877 |
2,503 |
307,670 |
30,351 |
1,200 |
0 |
0 |
0 |
April 2018 |
6,103 |
3,977 |
852 |
349,640 |
19,262 |
0 |
0 |
0 |
0 |
May 2018 |
4,492 |
1,336 |
1,481 |
438,160 |
56 |
0 |
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-RW0650-17 |
19-Dec-17 |
18-Jun-18 |
GCL |
General
works at WA5 |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS1112-17 |
14-Dec-17 |
31-Mar-18 |
GCL |
Broad
Permit for Whole Site Areas |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS0244-18 |
30-Mar-18 |
29-Sep-18 |
GCL |
Broad
Permit for Whole Site Areas |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS1153-17 |
31-Dec-17 |
31-Mar-18 |
GCL |
Broad
Permit for Segment Launching at Land Portion |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS0201-18 |
12-Mar-18 |
30-Apr-18 |
GCL |
Broad
Permit for Segment Launching at Land Portion |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS0328-18 |
30-Apr-18 |
29-Jun-18 |
GCL |
Broad
Permit for Segment Launching at Land Portion |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS0411-18 |
26-May-18 |
31-May-18 |
GCL |
Street
Lamp Replacement at East Coast Road |
|
|||||
Construction
Noise Permit for night works and works in general holidays |
GW-RS0064-18 |
1-Feb-18 |
29-Jul-18 |
GCL |
Pre-casted pile cap shell installation at E8-E13 |
|
|||||
No Action or Limit Level exceedance for 1-hour TSP and
24-hour TSP for air quality and construction noise monitoring was recorded
during the reporting period.
One (1) Action Level of Suspended Solids (SS) and one
(1) Action Level of Dissolved Oxygen (DO) exceedances 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 (March to May 2018) |
|
||||
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
|||
CS(Mf)3(N) |
9.2 |
12.8 |
12.0 |
16.6 |
8.0 |
9.5 |
||
CS(Mf)5 |
9.2 |
11.5 |
11.9 |
14.9 |
6.3 |
6.1 |
||
SR4(N) |
10.3 |
12.3 |
13.4 |
16.0 |
7.2 |
9.7 |
||
SR4a |
9.1 |
9.8 |
11.9 |
12.7 |
7.6 |
8.8 |
||
IS8 |
11.3 |
13.5 |
14.6 |
17.6 |
6.7 |
8.9 |
||
IS(Mf)9 |
10.9 |
14.3 |
14.2 |
18.5 |
7.0 |
7.5 |
||
IS(Mf)16 |
11.4 |
10.3 |
14.8 |
13.4 |
6.2 |
6.9 |
||
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. (c) Water Quality Monitoring Station SR4 was relocated
to SR4(N) since 2 March 2018. |
|
|||||||
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 no complaint, notification of summons or
successful prosecution recorded in the reporting period.
Statistics on complaint, notification of summons of
successful prosecution are summarized in Appendix L.
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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
July 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;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers installation; and
· Slope
work of Viaducts A, B, C & D.
August 2018
Land-based Works
· Pier
construction;
· Demolition
of marine platform;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments;
· Asphalt
paving;
· Construction
of sign gantries, light poles and street furniture;
· Parapets
and barriers 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 Eighteenth Quarterly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 March to
31 May 2018, 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 1-hour and 24-hour TSP level and noise impact monitoring in this
reporting period.
One (1) Action Level of Suspended Solids (SS) and one
(1) Action Level of Dissolved Oxygen (DO) exceedances were recorded for water
quality impact monitoring in the reporting period.
A total of nine (9) groups of thirty (30) Chinese White
Dolphins were sighted during the six sets of survey from March to May 2018. One (1) Limit Level exceedance was recorded
for the quarterly dolphin monitoring data between March to May 2018, 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.
There was no complaint, notification of summons or
successful prosecution recorded in the reporting period.
([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.
(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.
([3]) 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.