TABLE OF CONTENTS
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
Executive Summary
Under Contract No. HY/2012/07, Gammon
Construction Limited (GCL) is commissioned by the Highways Department (HyD) to
undertake the design and construction of the Southern Connection Viaduct
Section of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while
AECOM
Asia Company Limited was appointed by HyD as the Supervising Officer. For
implementation of the environmental monitoring and audit (EM&A) programme
under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the
Environmental Team (ET). Ramboll 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 2019. 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
Nineteenth Quarterly EM&A Report presenting the EM&A works carried out
during the period from 1 June to 31 August 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:
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;
·
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 17
sessions
1-hour TSP
monitoring 17
sessions
Noise
monitoring 17
sessions
Water quality
monitoring
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 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
Thirty-seven
(37) Action Level and three (3) Limit Level of Dissolved Oxygen (DO)
exceedances, one (1) Limit Level of Suspended Solids exceedance and one (1)
Action 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 June and August 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 were
two (2) complaints received by 1823 regarding discharge of muddy water nearby
Hong Kong Boundary Crossing Facilities (HKBCF) on 13 June 2018 and construction
noise nuisance nearby the Kowloon-bound lane of the North Lantau Highway on 16
June 2018 in the reporting period. 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:
September
2018
Marine-based
Works
·
Uninstallation
of marine piling platform
Land-based
Works
·
Pier
construction;
·
Re-alignment
of Cheung Tung Road;
·
Road
works along North Lantau Highway;
·
Asphalt
paving;
·
Construction
of sign gantries, light poles and street furniture;
·
Parapets
and barriers installation; and
·
Slope
work of Viaducts A, B, C & D.
October 2018
Marine-based
Works
·
Uninstallation
of marine piling platform
Land-based
Works
·
Reinstatement
works along Cheung Tung Road;
·
Abutment
construction;
·
Road
works along North Lantau Highway;
·
Asphalt
paving;
·
Construction
of sign gantries, light poles and street furniture;
·
Parapets
and barriers installation; and
·
Slope
work of Viaducts A, B, C & D.
November 2018
Marine-based
Works
·
Uninstallation
of marine piling platform
Land-based
Works
·
Reinstatement
works along Cheung Tung Road;
·
Abutment
construction;
·
Road
works along North Lantau Highway;
·
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.
1
Introduction
1.1
Background
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 construction phase of the
Contract commenced on 31 October 2013 and will be tentatively be completed by
2019. The impact monitoring phase of the EM&A programme, including
air quality, noise, water quality and marine ecological monitoring as well
environmental site inspections, commenced on 31 October 2013.
The
general layout plan of the Contract components is presented in Figures 1.1 & 1.2a to l.
1.2
Scope of
Report
This is the Nineteenth Quarterly
EM&A Report under the Contract No.
HY/2012/07 Tuen Mun – Chek Lap Kok Link – Southern Connection
Viaduct Section. This
report presents a summary of the environmental monitoring and audit works from
1 June to 31 August 2018.
1.3
Organization Structure
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 |
1.4
Summary of Construction
Works
The construction phase of the
Contract commenced on 31 October 2013. The rolling construction programme
for the period of June to August 2018 is shown in Appendix
B.
As informed by the Contractor,
details of the major works carried out in this reporting period are listed
below:
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;
· 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 environmental mitigation
measures implementation schedule is presented in Appendix C.
1.5
Summary of EM&A
Programme Requirements
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
2
EM&A
RESULTS
The EM&A
programme required environmental monitoring for air quality, noise, water
quality and marine ecology as well as environmental site inspections for air
quality, noise, water quality, waste management, marine ecology and landscape
and visual impacts. The EM&A requirements and related findings for
each component are summarized in the following sections.
2.1
Air Quality
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.
2.1.1
Monitoring Requirements and
Equipment
In
accordance with the Updated EM&A Manual, impact 1-hour TSP monitoring was
conducted three (3) times every six (6) days while the highest dust impact was
expected. Impact 24-hour TSP monitoring was carried out once every six
(6) days. The Action and Limit Levels of the air quality monitoring is
provided in Appendix D.
1-hour TSP
and 24-hour TSP monitoring were conducted at 2 alternative air quality
monitoring stations, ASR8A (Area 4) and ASR9 (entrance of MTR Depot) during the
reporting period in accordance with the requirement of the Updated EM&A
Manual. The monitoring stations are indicated in Figure 2.1 and details are
presented in Table 2.1.
High Volume
Samplers (HVSs) were used for carrying out 1-hour and 24-hour TSP monitoring
during the reporting period. The HVSs meets all requirements of the
Updated EM&A Manual. Brand and model of the equipment are given in Table
2.2.
Wind data
monitoring equipment was installed at Area 4 during the reporting period for
logging wind speed and wind direction. The wind sensor was setup such
that it was clear of obstructions or turbulence caused by building. The
wind data monitoring equipment is recalibrated at least once every six months.
Table 2.1
Locations of Impact Air Quality Monitoring Stations and Monitoring Dates in
this Reporting Period
|
Monitoring Station (1) |
Monitoring Period |
Location |
Description |
Parameters & Frequency |
|
ASR8A |
6, 12, 15, 21 and 27 June 2018 3, 9, 12, 18, 24 and 30 July 2018 2, 8, 14, 23, 25 and 29 August 2018 |
Area 4 |
On ground at the works area, Area 4 |
Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times per day every 6 days Ÿ 24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour every 6 days |
|
ASR9 |
MTR Depot |
On the ground nearby MTR Depot entrance |
Note:
(1) Air Quality Monitoring Stations ASR9A and ASR9C at
Siu Ho Wan MTRC Depot proposed in accordance with the Updated EM&A were
relocated to ASR9 and ASR8A respectively.
Table 2.2 Air
Quality Monitoring Equipment
|
Equipment |
Brand and Model |
|
High Volume Sampler |
Tisch Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170)
|
|
Wind Sensor |
Global Water (Wind Speed Sensor: WE550; Wind Direction Sensor: WE570)
|
|
Wind Anemometer for calibration |
Lutron (Model No. AM-4201) |
2.1.2
Action & Limit Levels
The Action
and Limit Levels of the air quality monitoring are provided in Appendix D. The
Event and Action plan is presented in Appendix J.
2.1.3
Monitoring Schedule for the
Reporting Quarter
The schedules
for air quality monitoring in the reporting quarter are provided in Appendix E.
2.1.4
Results and Observations
The
monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables
2.3 and 2.4, respectively. Monitoring results are presented
graphically in Appendix F.
Detailed impact air quality monitoring results and meteorological information
were reported in the Fifty-sixth to Fifty-eighth 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) |
|
June 2018 |
ASR 8A |
62 |
23-135 |
394 |
500 |
|
ASR 9 |
72 |
13-103 |
393 |
500 |
|
|
July 2018 |
ASR 8A |
48 |
19-78 |
394 |
500 |
|
ASR 9 |
53 |
17-108 |
393 |
500 |
|
|
August 2018 |
ASR 8A |
72 |
23-162 |
394 |
500 |
|
ASR 9 |
77 |
38-180 |
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) |
|
June 2018 |
ASR 8A |
30 |
24-39 |
178 |
260 |
|
ASR 9 |
31 |
16-44 |
178 |
260 |
|
|
July 2018 |
ASR 8A |
28 |
18-32 |
178 |
260 |
|
ASR 9 |
31 |
21-44 |
178 |
260 |
|
|
August 2018 |
ASR 8A |
39 |
19-66 |
178 |
260 |
|
ASR 9 |
42 |
20-70 |
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.
2.2
Noise Monitoring
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.
2.2.1
Monitoring Requirements and
Equipment
In accordance
with the Updated EM&A Manual, impact noise monitoring should be conducted
once per week during the construction phase of the Contract.
Noise
monitoring was conducted at the alternative noise monitoring station, NSR1A
(Pak Mong Village Pavilion) during the reporting period in accordance with the
requirement of Updated EM&A Manual. Figure 2.2 shows the location of the monitoring
station. Table 2.5 describes the details of the monitoring
station.
Noise
monitoring was performed 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, 15, 21 and 27 June 2018 3, 9, 12, 18, 24 and 30 July 2018 2, 8, 14, 23, 25 and 29 August 2018 |
Pak Mong Village Pavilion |
Ÿ 30-mins measurement at each monitoring station between 0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10 and L90 would be recorded. Ÿ At least once a week |
|
Note: (1) Noise Monitoring Station NSR1 at Pak Mong Village proposed in accordance with the Updated EM&A 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 |
2.2.2
Action and Limit Levels
The Action
and Limit levels of the noise monitoring are provided in Appendix D. The
Event and Action plan is presented in Appendix J.
2.2.3
Monitoring Schedule for the
Reporting Quarter
The schedule
for construction noise monitoring in the reporting period is provided in Appendix E.
2.2.4
Results and Observations
The
monitoring results for noise monitoring are summarized in Table 2.7.
Monitoring results are presented graphically in Appendix G and detailed
impact noise monitoring results are reported in the Fifty-sixth to Fifty-eighth
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) |
|
June 2018 |
64 |
62-69 |
75 |
|
July 2018 |
64 |
62-65 |
75 |
|
August 2018 |
64 |
63-66 |
75 |
A total
of 17 monitoring events were undertaken in the reporting period with no Action
Level and Limit Level exceedance recorded at the monitoring station in the
reporting period. No action is thus required to be undertaken in
accordance with the Event Action Plan presented in Appendix J.
Major
noise sources during the noise monitoring included construction activities,
nearby construction works and nearby traffic noise and aircraft noise.
2.3
Water Quality Monitoring
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.
2.3.1
Monitoring Requirements and
Equipment
Impact
water quality monitoring was carried out to ensure that any deterioration of
water quality was detected, and that timely action was taken to rectify the
situation. Impact water quality monitoring was undertaken three days per
week during the construction period at seven water quality monitoring stations
in accordance with the Updated EM&A Manual.
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 |
Ÿ Temperature(°C) Ÿ pH(pH unit) Ÿ Turbidity (NTU) Ÿ Water depth (m) Ÿ Salinity (ppt) Ÿ Dissolved Oxygen (DO) (mg/L and % of saturation) · Suspended Solid (SS) (mg/L) |
3 water depths: 1m below sea surface, mid-depth and 1m above sea bed. If the water depth is less than 3m, mid-depth sampling only. If water depth less than 6m, mid-depth may be omitted.
|
Impact monitoring: 3 days per week, at mid-flood and mid-ebb tides during the construction period of the Contract. |
|
IS(Mf)16 |
Impact Station (Close to HKBCF construction site) |
814328 |
819497 |
|||
|
IS8 |
Impact Station(Close to HKBCF construction site) |
814251 |
818412 |
|||
|
SR4(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
|
2.3.2
Action & Limit Levels
The
Action and Limit Levels of the water quality monitoring are provided in Appendix D.
2.3.3
Monitoring Schedule for the
Reporting Quarter
The schedules
for water quality monitoring in the reporting quarter are provided in Appendix E. Water quality monitoring during mid-flood tide at
all water quality monitoring stations, on 6 June 2018 and 18 July 2018, except
CS(Mf)5 on 6 June and all monitoring stations during both mid-ebb and mid-flood
tide on 8 June 2018 were cancelled due to adverse weather. Water quality
monitoring on 18 June 2018 was cancelled due to suspension of works during
holiday.
2.3.4
Results and Observations
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 Fifty-sixth
to Fifty-eighth Monthly EM&A Reports.
Thirty-seven
(37) Action Level and three (3) Limit Level of Dissolved Oxygen (DO)
exceedances, one (1) Limit Level of Suspended Solids exceedance and one (1)
Action 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.
2.4
Dolphin Monitoring
2.4.1
Monitoring Requirements
Impact
dolphin monitoring is required to be conducted by a qualified dolphin
specialist team to evaluate whether there have been any effects on the
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.
2.4.2
Monitoring Equipment
Table 2.10 summarizes
the equipment used for the impact dolphin monitoring.
Table 2.10 Dolphin
Monitoring Equipment
|
Equipment |
Model |
|
Global Positioning System (GPS)
Camera
Laser Binoculars Marine Binocular Vessel for Monitoring
|
Garmin 18X-PC Geo One Phottix Nikon D90 300m 2.8D fixed focus Nikon D90 20-300m zoom lens Infinitor LRF 1000 Bushell 7 x 50 marine binocular with compass and reticules 65 foot single engine motor vessel with viewing platform 4.5m above water level |
2.4.3
Monitoring Parameter, Frequencies
& Duration
Dolphin
monitoring should cover all transect lines in Northeast Lantau (NEL) and the
Northwest Lantau (NWL) survey areas twice per month throughout the entire
construction period. The monitoring data should be compatible with, and
should be made available for, long-term studies of small cetacean ecology in
Hong Kong. In order to provide a suitable long-term dataset for
comparison, identical methodology and line transects employed in baseline
dolphin monitoring was followed in the impact dolphin monitoring.
2.4.4
Monitoring Location
The impact
dolphin monitoring was carried out in the NEL and NWL along the line transect
as depicted in Figure 2.4.
The co-ordinates of all transect lines are shown in Table 2.11
below ([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 |
2.4.5
Action & Limit Levels
The Action
and Limit levels of dolphin impact monitoring are shown in Appendix D. The
Event and Action plan is presented in Appendix J.
2.4.6
Monitoring Schedule for the
Reporting Period
The dolphin
monitoring schedules for the reporting period are shown in Appendix E.
2.4.7
Results &
Observations
A total of 771.98 km of survey effort was collected, with 96.8% 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,
287.18 km and 484.80 km of survey
effort were conducted in NEL and NWL survey areas respectively. The total
survey effort conducted on primary lines was 567.73 km, while the effort on secondary lines was 204.25 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 June to August 2018, a total of seven (7) groups of 17 Chinese White
Dolphins were sighted. Six of the seven dolphin sightings were made
during on-effort, while four of the six 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: (5th & 13th Jun 2018) |
0.0 |
0.0 |
|
Set 2: (19th & 27th Jun 2018) |
0.0 |
0.0 |
|
|
Set 3: (3rd & 9th Jul 2018) |
0.0 |
0.0 |
|
|
Set 4: (12th & 20th Jul 2018) |
0.0 |
0.0 |
|
|
Set 5: (1st & 8th Aug 2018) |
0.0 |
0.0 |
|
|
Set 6: (21st & 28th Aug 2018) |
0.0 |
0.0 |
|
|
NWL |
Set 1: (5th & 13th Jun 2018) |
0.00 |
0.00 |
|
Set 2: (19th & 27th Jun 2018) |
1.91 |
3.81 |
|
|
Set 3: (3rd & 9th Jul 2018) |
0.00 |
0.00 |
|
|
Set 4: (12th & 20th Jul 2018) |
1.68 |
6.71 |
|
|
Set 5: (1st & 8th Aug 2018) |
3.36 |
6.72 |
|
|
Set 6 (21st & 28th Aug 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) |
||
|
June - August 2018 |
September -November 2011 |
June - August 2018 |
September -November 2011 |
|
|
Northeast Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
|
Northwest Lantau |
1.16 ± 1.39 |
9.85 ± 5.85 |
2.87 ± 3.32 |
44.66 ± 29.85 |
Note:
encounter rates deduced from the baseline monitoring period (September –
November 2011) have been recalculated based only on survey effort and on-effort
sighting data made along the primary transect lines under favourable conditions
Group size of Chinese White
Dolphins ranged from one (1) to five (5) individuals per group in North Lantau
region during June to August 2018. The average dolphin group
sizes from these three months were compared with the ones deduced from the
baseline period in September to November 2011, as shown in Table 2.14.
Table 2.14 Comparison
of Quarterly Average Group Sizes
|
|
Average Dolphin Group Size |
|
|
June to August 2018 |
September - November 2011 |
|
|
Overall |
2.43 ± 1.62 (n = 7) |
3.72 ± 3.13 (n = 66) |
|
Northeast Lantau |
--- |
3.18 ± 2.16 (n = 17) |
|
Northwest Lantau |
2.43 ± 1.62 (n = 7) |
3.92 ± 3.40 (n = 49) |
One (1) Limit Level exceedance
was observed for the quarterly dolphin monitoring data between June to August 2018.
During this quarter of
dolphin monitoring, no unacceptable impact from the activities of this Contract
on Chinese White Dolphins was noticeable from the general observations.
Although the
dolphins infrequently occurred along the alignment of TM-CLKL Southern
Connection Viaduct in the past and during the baseline monitoring period, it is
apparent that dolphin usage has been significantly reduced in both NEL and NWL,
and many individuals have shifted away from the important habitat around the
Brothers Islands.
It is critical to monitor
the dolphin usage in North Lantau region in the upcoming quarters, to determine
whether the dolphins are continuously affected by the various construction
activities in relation to the HZMB-related works, and whether suitable
mitigation measure can be applied to revert the situation.
2.4.8
Marine Mammal Exclusion Zone Monitoring
Daily marine mammal exclusion zone monitoring was
undertaken during the period of marine works under this Contract. No
sighting of Chinese White Dolphin was recorded in the monitoring period during
the exclusion zone monitoring.
Passive Acoustic Monitoring (PAM) was
decommissioned in this reporting period as no marine piling works was carried
out outside the daylight hours since September 2015. Daytime marine
mammal exclusion zone was still in effect to cater for temporary staging
installation and uninstallation works.
2.5
Bored Piling Monitoring
Under the
marine bored piling monitoring programme for dolphins, Post-construction
Land-based Theodolite Tracking should be conducted for 30 days after the
completion of the bored piling works. Post-construction Land-based
Theodolite Tracking commenced on 5 June 2018
and will continue in September 2018.
2.6
EM&A
Site Inspection
Site
inspections were carried out on a weekly basis to monitor the implementation of
proper environmental pollution control and mitigation measures under the
Contract. Thirteen (13) site inspections were carried out in the
reporting quarter on 6, 13, 20 and 27 June , 4, 12, 18 and 26 July, and 1, 8, 15, 23 and 30
August 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 |
|
6 June 2018 |
Southern Landfall (Pier F1) Ÿ Accumulated general refuse should be disposed of in the skip and cleared regularly. Ÿ Chemical containers were observed not placed in drip tray. Southern Landfall (Pier E14C) Ÿ Accumulated general refuse should be disposed of in the skip and cleared regularly. Seafront Office at Southern Landfall (Portion A)(Portion S-c) Ÿ Chemical containers were observed not placed in drip tray. |
Southern Landfall (Pier F1) Ÿ The Contractor was reminded to clear accumulated general refuse. Ÿ The Contractor was reminded to place chemical containers in drip tray. Southern Landfall (Pier E14C) Ÿ The Contractor was reminded to clear accumulated general refuse. Seafront Office at Southern Landfall (Portion A)(Portion S-c) Ÿ The Contractor was reminded to place chemical containers in drip tray.
|
|
13 June 2018 |
Viaduct E (Pier E4) Ÿ Chemical containers were observed not placed in drip tray. Viaduct E (Pier E5) Ÿ Stagnant water in the drip tray near chemical containers should be cleared. Viaduct E (Pier E12) Ÿ Stagnant water in the drip tray near the generator should be cleared. |
Viaduct E (Pier E4) Ÿ The Contractor was reminded to place chemical containers in drip tray. Viaduct E (Pier E5) Ÿ The Contractor was reminded to clear stagnant water in the drip tray. Viaduct E (Pier E12) Ÿ The Contractor was reminded to clear stagnant water in the drip tray. |
|
20 June 2018 |
Viaduct B Ÿ Chemical container was observed not placed in drip tray. Viaduct B (Pier B2) Ÿ Stagnant water was observed in the drip tray and nearby the generator. Ÿ Accumulated general refuse should be cleared. |
Viaduct B Ÿ The Contractor was reminded to place chemical container in drip tray. Viaduct B (Pier B2) Ÿ The Contractor was reminded to clear stagnant water in the drip tray and nearby the generator. Ÿ The Contractor was reminded to clear accumulated general refuse. |
|
28 June 2018 |
Viaduct C (Pier C16 and Gate 4A) Ÿ Accumulated general refuse should be cleared. Viaduct E (Pier E12) Ÿ Stagnant water in the drip tray should be cleared. Ÿ Absorption pad should be provided near the drip tray. Viaduct E Ÿ Accumulated general refuse should be disposed of in the skip and cleared regularly. Southern Landfall (Portion A)(Portion S-c) Ÿ Chemical containers were observed not placed in drip tray. |
Viaduct C (Pier C16 and Gate 4A) Ÿ The Contractor was reminded to clear accumulated general refuse. Viaduct E (Pier E12) Ÿ The Contractor was reminded to clear stagnant water in the drip tray and nearby the generator. Ÿ The Contractor was reminded to provide absorption pad near the drip tray. Viaduct E Ÿ The Contractor was reminded to clear accumulated general refuse. Southern Landfall (Portion A)(Portion S-c) Ÿ The Contractor was reminded to place chemical containers in drip tray.
|
|
4 July 2018 |
Viaduct E (Pier E12) Ÿ Accumulated general refuse on the deck and in the gully should be cleared regularly. Viaduct E (Pier E13) Ÿ Chemical container was observed not placed in drip tray. |
Viaduct E (Pier E12) Ÿ The Contractor was reminded to clear accumulated general refuse. Viaduct E (Pier E13) Ÿ The Contractor was reminded to place chemical container in drip tray.
|
|
12 July 2018 |
Viaduct F (Ramp F) Ÿ The drip tray was observed not properly plugged. Viaduct E (Pier E14A) Ÿ Accumulated general refuse should be cleared. Viaduct F (Pier F9) Ÿ The drip tray was observed not properly plugged. |
Viaduct F (Ramp F) Ÿ The Contractor was reminded to plug the drip tray. Viaduct E (Pier E14A) Ÿ The Contractor was reminded to clear accumulated general refuse. Viaduct F (Pier F9) Ÿ The Contractor was reminded to plug the drip tray. |
|
18 July 2018 |
Viaduct E (Pier E10) Ÿ Stagnant water was observed in the drip tray. Viaduct E (Pier E6) Ÿ Accumulated general refuse should be cleared. Viaduct E (Pier E2) Ÿ Empty chemical container should be cleared. |
Viaduct E (Pier E10) Ÿ The Contractor was reminded to clear stagnant water in drip tray. Viaduct E (Pier E6) Ÿ The Contractor was reminded to clear general refuse. Viaduct E (Pier E2) Ÿ The Contractor was reminded to clear empty chemical container. |
|
26 July 2018 |
Viaduct E (Pier E12) Ÿ Stagnant water in the drip tray should be cleared. Viaduct E (Pier E11) Ÿ Chemical containers were observed not placed in drip tray |
Viaduct C (Pier C16 and Gate 4A) Ÿ The Contractor was reminded to clear stagnant water in the drip tray. Viaduct E (Pier E12) Ÿ The Contractor was reminded to place chemical container in drip tray. |
|
1 August 2018 |
Viaduct A (Pier A1) Ÿ Accumulated general refuse should be cleared regularly. Viaduct B (Pier B3-B6) Ÿ Chemical containers were observed not placed in drip tray. |
Viaduct A (Pier A1) Ÿ The Contractor was reminded to clear accumulated general refuse. Viaduct B (Pier B3-B6) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ |
|
8 August 2018 |
Viaduct E (Pier E13) Ÿ Chemical containers were observed not placed in drip tray. Viaduct E (Pier E12) Ÿ Oil stain was observed. Ÿ Empty chemical container should be removed off site. |
Viaduct E (Pier E13) Ÿ The Contractor was reminded to place chemical containers in drip tray. Viaduct E (Pier E12) Ÿ The Contractor was reminded to clear oil stain. Ÿ The Contractor was reminded to clear empty chemical container. |
|
15 August 2018 |
Southern Landfall Ÿ Accumulated general refuse should be cleared regularly. Ÿ NRMM label should be provided on the generator. Ÿ Sand inside the drip tray should be cleared. |
Southern Landfall Ÿ The Contractor was reminded to clear general refuse. Ÿ The Contractor was reminded to provide NRMM label. Ÿ The Contractor was reminded to clear sand inside the drip tray. |
|
23 August 2018 |
Viaduct E Ÿ Accumulated general refuse should be cleared regularly. Viaduct E (Pier E12) Ÿ Chemical containers were observed not placed in drip tray. Ÿ New NRMM label should be provided on the generator. |
Viaduct E Ÿ The Contractor was reminded to clear general refuse. Viaduct E (Pier E12) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to provide new NRMM label. |
|
30 August 2018 |
Viaduct E (Pier E13) Ÿ Chemical containers were observed not placed in drip tray. Ÿ Stagnant water in the drip tray should be cleared. |
Viaduct E (Pier E13) Ÿ The Contractor was reminded to place chemical containers in drip tray. Ÿ The Contractor was reminded to clear stagnant water in drip tray. |
The Contractor has rectified all
of the observations identified during environmental site inspections in the
reporting period.
2.7
Waste
Management Status
The Contractor has submitted
application form for registration as chemical waste producer under the
Contract. Sufficient numbers of receptacles were available for general
refuse collection and sorting.
Wastes
generated during this reporting period include mainly construction wastes
(inert and non-inert), 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 |
|||||||
|
June 2018 |
2,801 |
67 |
1,134 |
669,690 |
9,605 |
0 |
0 |
0 |
0 |
|
July 2018 |
1,361 |
181 |
208 |
639,210 |
13,316 |
0 |
0 |
0 |
0 |
|
August 2018 |
2,369 |
1,455 |
189 |
508,670 |
0 |
1,200 |
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.
2.8
Environmental
Licenses and Permits
The status of
environmental licensing and permit is summarized in Table 2.17 below.
Table 2.17
Summary of Environmental Licensing and Permit Status
|
License/ Permit |
License or Permit No. |
Date of Issue |
Date of Expiry |
License/ Permit Holder |
Remarks |
|
Environmental Permit |
EP-353/2009/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-RW0235-18
|
21 Jun 2018
|
18 Dec 2018
|
GCL |
General works at WA5 |
|
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-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-RS0426-18
|
11 Jun 2018
|
31 Jul 2018
|
GCL |
Broad Permit for Segment Launching at Land Portion |
|
Construction Noise Permit for night works and works in general holidays |
GW-RS0654-18
|
1 Aug 2018
|
30 Sep 2018 |
GCL |
Broad Permit for Segment Launching at Land Portion |
|
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 |
|
Construction Noise Permit for night works and works in general holidays |
GW-RS0657-18 |
1 Aug 2018 |
31 Oct 2018 |
GCL |
Cover Traffic Sign at Tung Chung |
|
Construction Noise Permit for night works and works in general holidays |
GW-RS0658-18 |
1 Aug 2018 |
22 Aug 2018 |
GCL |
East Coast Road Street Light Repairing |
2.9
Implementation Status of
Environmental Mitigation Measures
In response to the site audit
findings, the Contractor has carried out corrective actions.
A summary of the Environmental
Mitigation and Enhancement Measure Implementation Schedules (EMIS) is presented
in Appendix C. The necessary mitigation measures were implemented
properly for this Contract.
2.10
Summary of Exceedances of
the Environmental Quality Performance Limit
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.
Thirty-seven
(37) Action Level and three (3) Limit Level of Dissolved Oxygen (DO)
exceedances, one (1) Limit Level of Suspended Solids exceedance and one (1)
Action 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.
The
construction impact on depth-averaged SS was assessed by comparing the
quarterly mean values of depth-averaged SS with the relevant ambient mean
values (Table 2.18). The monitoring results showed that the
quarterly means of depth-averaged SS at all sampling stations during both
mid-ebb and mid-flood tides were well below the corresponding ambient
means. The depth-averaged SS results suggest that the Project did not
cause unacceptable impact on water quality in the reporting period.
Table 2.18 Comparison
between Quarterly Mean and Ambient Mean Values of Depth-averaged Suspended
Solids
|
Station |
Baseline Mean |
Ambient Mean (a) |
Quarterly Mean (June to August 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 |
5.7 |
8.1 |
|
CS(Mf)5 |
9.2 |
11.5 |
11.9 |
14.9 |
7.2 |
6.4 |
|
SR4(N) |
10.3 |
12.3 |
13.4 |
16.0 |
8.1 |
10.1 |
|
SR4a |
9.1 |
9.8 |
11.9 |
12.7 |
7.8 |
9.7 |
|
IS8 |
11.3 |
13.5 |
14.6 |
17.6 |
7.2 |
9.0 |
|
IS(Mf)9 |
10.9 |
14.3 |
14.2 |
18.5 |
6.4 |
8.3 |
|
IS(Mf)16 |
11.4 |
10.3 |
14.8 |
13.4 |
7.0 |
7.3 |
|
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.
2.11
Summary of Complaints,
Notification of Summons and Successful Prosecutions
The
Environmental Complaint Handling Procedure is provided in Figure 2.5.
There were
two (2) complaints received by 1823 regarding discharge of muddy water nearby
Hong Kong Boundary Crossing Facilities (HKBCF) on 13 June 2018 and construction
noise nuisance nearby the Kowloon-bound lane of the North Lantau Highway on 16
June 2018 in the reporting period.
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.
3
Future
Key Issues
3.1
Construction Activities
for the Coming Quarter
As informed by the Contractor,
the major works for the Contract in the coming quarter are summarized below:
Marine-based
Works
· Uninstallation
of marine piling platform
Land-based
Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road works
along North Lantau Highway;
· Asphalt
paving;
· Construction
of sign gantries, light poles and street furniture;
· Parapets and
barriers installation; and
· Slope work
of Viaducts A, B, C & D.
October 2018
Marine-based
Works
· Uninstallation
of marine piling platform
Land-based
Works
· Re-alignment
of Cheung Tung Road;
· Abutment
construction;
· Road works
along North Lantau Highway;
· Asphalt
paving;
· Construction
of sign gantries, light poles and street furniture;
· Parapets and
barriers installation; and
· Slope work
of Viaducts A, B, C & D.
November 2018
Marine-based
Works
· Uninstallation
of marine piling platform
Land-based
Works
· Reinstatement
works along Cheung Tung Road;
· Abutment
construction;
· Road works
along North Lantau Highway;
· Asphalt
paving;
· Construction
of sign gantries, light poles and street furniture;
· Parapets and
barriers installation; and
· Slope work
of Viaducts A, B, C & D.
3.2
Key
Issues for the Coming Quarter
Potential environmental impacts arising from the
above upcoming construction activities are mainly associated with air quality,
noise, marine water quality, marine ecology and waste management issues.
3.3
Monitoring Schedule for
the Coming Quarter
Impact
monitoring for air quality, noise, marine water quality and dolphin monitoring
are scheduled to continue for the next reporting period.
The
monitoring programme has been reviewed and was considered as adequate to cater
for the nature of works in progress.
4
Conclusions
and recommendations
4.1
Conclusions
The Nineteenth Quarterly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 1
June to 31 August 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.
Thirty-seven
(37) Action Level and three (3) Limit Level of Dissolved Oxygen (DO)
exceedances, one (1) Limit Level of Suspended Solids exceedance and one (1)
Action Level of Turbidity exceedance were recorded for water quality impact
monitoring in the reporting period.
A total of
seven (7) groups of seventeen (17) Chinese White Dolphins were sighted during
the six sets of survey from June to August 2018. One (1) Limit Level
exceedance was recorded for the quarterly dolphin monitoring data between June
to August 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 13
times in the reporting period. Recommendations on remedial actions were
given to the Contractor for the deficiencies identified during the site audits.
There were
two (2) complaints received by 1823 regarding discharge of muddy water nearby
Hong Kong Boundary Crossing Facilities (HKBCF) on 13 June 2018 and construction
noise nuisance nearby the Kowloon-bound lane of the North Lantau Highway on 16
June 2018 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)
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.
(4)
The Proposal of Alternative Water Quality Monitoring Station with the
verification letter from IEC was submitted to EPD on 31 March 2017, and
subsequently replied with no objection on.6 April 2017.