Executive Summary
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
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 Programme for the Coming Month
3.2 Key Issues for the Coming Month
3.3 Monitoring Schedule for the Coming Month
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 Calibration Certificates of Monitoring Equipment
Appendix F EM&A Monitoring Schedules
Appendix G Impact Air Quality Monitoring Results and Graphical
Presentation
Appendix H Meteorological Data for the Reporting Month
Appendix I Impact Noise Monitoring Results and Graphical
Presentation
Appendix J Impact Water Quality Monitoring Results and Graphical
Presentation
Appendix K Impact Dolphin Monitoring Survey Results
Appendix L Event Action Plan
Appendix M Monthly 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
Fifty-third Monthly EM&A report presenting the EM&A works carried out
during the period from 1 to 31 March 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:
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.
A summary of
monitoring and audit activities conducted in the reporting period is listed
below:
24-hour TSP
Monitoring 6 sessions
1-hour TSP
Monitoring 6 sessions
Water Quality
Monitoring 13 sessions
Noise Monitoring 6 sessions
Impact Dolphin
Monitoring 2
sessions
Joint
Environmental Site Inspection 5
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 month.
Breaches of Action and Limit Levels for Noise
No exceedance of
Action and Limit Levels was recorded for construction noise monitoring in the
reporting month.
Breaches of Action and Limit Levels for Water Quality
One (1) Action
Level of Suspended Solids (SS) exceedances was recorded for water quality
impact monitoring in the reporting month.
Impact Dolphin Monitoring
During this
month of dolphin monitoring, 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 Dolphin) was noticeable from general observations. Due to monthly variation in dolphin
occurrence within the Study Area, it would be more appropriate to draw
conclusion on whether any impacts on dolphins have been detected related to the
construction activities of the TM-CLKL Southern Connection Viaduct Section in
the quarterly EM&A reports, in which comparison on distribution, group size
and encounter rates of dolphins between the quarterly impact monitoring period
and baseline monitoring period will be made.
Daily marine
mammal exclusion zone monitoring was undertaken during the period of marine
works under this Contract. No sighting
of the Chinese White Dolphin was recorded in March 2018 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.
Summary of Marine Travel Route record
No non-compliance with EIA
recommendations,
EP conditions and other requirements associated with the marine travel route
record of this Contract was recorded in January and February 2017. Summary of marine travel route record for
this reporting period will be provided when available.
Reporting Change
There was no reporting change in the reporting period.
Upcoming Works
for the Next Reporting Period
Works to be
undertaken in the next monitoring period of April 2018 include the following:
Land-based Works
·
Pier construction;
·
Re-alignment of Cheung Tung Road;
·
Road works along North Lantau Highway;
·
Installation of pier head and deck segments;
·
Asphalt paving;
·
Sign gantries construction;
·
Parapet installation; and
·
Slope work of Viaducts A, B, C & D.
Future Key Issues
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of April 2018 are mainly associated with dust,
noise, marine water quality, marine ecology and waste management issues.
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-354/2009/A) was issued
on 8 December 2010.
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. 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
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.
This is the
Fifty-third Monthly 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 in March 2018.
The organization
structure of the Contract is shown in Appendix A. The key personnel contact names and contact
details are summarized in Table 1.1
below.
Table 1.1 Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
HyD (Highways Department) |
Project Coordinator |
Stanley Chan |
2762 3406 |
3188 6614 |
|
Senior Engineer |
Steven Shum |
2762 4133 |
3188 6614 |
SOR (AECOM Asia Company Limited) |
Chief Resident Engineer |
Daniel Ip |
3553 3800 |
2492 2057 |
|
Resident Engineer |
Kingman Chan |
3691 3950 |
3691 2899 |
ENPO / IEC (Ramboll Hong Kong Ltd.) |
ENPO Leader |
Y.H. Hui |
3465
2850 |
3465 2899 |
IEC |
Dr. F.C. Tsang |
3465
2851 |
3465 2899 |
|
Contractor (Gammon Construction Limited) |
Environmental Manager |
Brian Kam |
3520 0387 |
3520 0486 |
Environmental Officer |
Roy Leung |
3520 0387 |
3520 0486 |
|
|
24-hour Complaint Hotline |
|
9738 4332 |
|
ET (ERM-HK) |
ET Leader |
Jovy Tam |
2271 3113 |
2723 5660 |
The construction
phase of the Contract commenced on 31 October 2013. The three-month rolling construction
programme is shown in Appendix
B.
As informed by the
Contractor, details of the major works carried out in this reporting month are
listed below:
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.
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.
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.
In accordance
with the Updated EM&A Manual, impact 1-hour TSP monitoring was conducted
three (3) times every six (6) days and impact 24-hour TSP monitoring was
carried out once every six (6) days when the highest dust impact was
expected. The Action and Limit Levels of
the air quality monitoring is provided in Appendix D.
Table 2.1 Locations of Impact Air Quality Monitoring Stations
Monitoring
Station |
Location |
Description |
Monitoring
Dates |
ASR 9 |
MTR Depot |
On the ground nearby MTR Depot Entrance |
5, 8, 14, 20, 26 and 29 March 2018 |
ASR 8A |
Area 4 |
On ground at the works area, Area 4 |
5, 8, 14, 20, 26 and 29 March 2018 |
High Volume Samplers (HVSs) were used for 1-hour TSP and 24-hour TSP
monitoring at ASR8A and ASR9 in accordance with the
requirements of the Updated EM&A Manual.
The TSP monitoring stations are illustrated in Figure 2.1
and detailed in Table 2.1. Wind meter was deployed at Area 4 for logging
wind speed and wind direction. Copies of the
calibration certificates for the equipment are presented in Appendix E. Details of the deployed equipment are given
in Table 2.2.
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 schedule for
air quality monitoring in March 2018 is provided in Appendix F.
The monitoring
results for 1-hour TSP and 24-hour TSP are summarized in Tables 2.3 and 2.4 respectively. Detailed impact air quality monitoring results
are presented in Appendix G.
Table 2.3 Summary of 1-hour TSP Monitoring Results in the Reporting
Period
Monitoring Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level
(µg/m3) |
Limit Level
(µg/m3) |
ASR 8A |
62 |
13-137 |
394 |
500 |
ASR 9 |
108 |
20-261 |
393 |
500 |
Table 2.4 Summary of 24-hour TSP Monitoring Results in the Reporting
Period
Monitoring Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level
(µg/m3) |
Limit Level (µg/m3) |
ASR 8A |
57 |
35-86 |
178 |
260 |
ASR 9 |
65 |
47-100 |
178 |
260 |
The major dust
sources in the reporting period included 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 the reporting period.
No action is thus required to be undertaken in accordance with the Event
Action Plan presented in Appendix L.
Meteorological
information collected at ASR8A including wind
speed and wind direction is provided in Appendix H.
In accordance
with the Updated EM&A Manual, impact noise monitoring was conducted once
per week during the construction phase of the Contract. The Action and Limit Level of the noise
monitoring is provided in Appendix D.
Noise monitoring
was performed on 5, 8, 14, 20, 26 and 29 March 2018 using sound level meter at
the designated monitoring station NSR1A (Figure 2.2; Table 2.5)
in accordance with the requirements stipulated in the Updated EM&A
Manual. Acoustic calibrator was deployed
to check the sound level meters at a known sound pressure level. Details of the deployed equipment are
provided in Table 2.6. Copies of the calibration certificates for
the equipment are presented in Appendix E.
Table 2.5 Location of Impact Noise Monitoring Station
Monitoring
Station |
Location |
Description |
Parameter |
Frequency
and Duration |
Monitoring
Dates |
NSR 1A |
Pak Mong Village Pavilion |
On the ground at the village entrance |
30-minute 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 per week |
5, 8, 14, 20, 26 and 29 March 2018 |
Table 2.6 Noise Monitoring Equipment
Equipment |
Brand
and Model |
Integrated Sound Level Meter |
Rion NL-31 |
Acoustic Calibrator |
Rion NC-73 |
The schedule for
construction noise monitoring in the reporting period is provided in Appendix F.
Results for
noise monitoring are summarized in Table
2.7 and the monitoring data is provided in Appendix I.
Table 2.7 Summary of Construction Noise Monitoring Results in the
Reporting Period
|
Average , dB(A), Leq (30mins) |
Range, dB(A), Leq (30mins) |
Limit Level, dB(A), Leq (30mins) |
NSR 1A |
64 |
63-65 |
75 |
No noise Action
or Limit Level exceedance was recorded in the reporting month. No action is thus required to be undertaken
in accordance with the Event Action Plan presented in Appendix L.
Major noise
sources during the noise monitoring included noise from crane and excavator
operation and nearby traffic noise and aircraft noise.
Station
ID |
Type |
Coordinates |
*Parameters,
unit |
Frequency |
Depth |
|
|
|
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) |
Impact monitoring: 3 days per
week, at mid-flood and mid-ebb tides during the construction period of the
Contract |
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 |
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: 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 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 |
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 ([1]).
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 L.
Dolphin
monitoring was carried out on 8, 12, 20 and 23 March 2018 (Appendix F).
A
total of 263.34 km of survey effort was collected, with 85.3% of the total survey
effort being conducted under favourable weather conditions (i.e. Beaufort Sea
State 3 or below with good visibility) during the surveys in March 2018. Among the two areas, 98.00 km and 165.34 km
of survey effort were collected from NEL and NWL survey areas,
respectively. The total survey effort
conducted on primary and secondary lines were 192.21 km and 71.13 km,
respectively. The survey efforts are
summarized in Appendix K.
Six (6) groups
of 26 Chinese White Dolphins were sighted during the two sets of monitoring
surveys in March 2018. All dolphin
sightings were made in NWL, while none was sighted in NEL. During the surveys in March2018, all
sightings were made during on-effort search and on primary lines. None of the dolphin groups was associated
with operating fishing vessel and was not sighted in the proximity of the
Project’s alignment. The distribution of
dolphin sighting during the reporting month is shown in Figure 2.5.
Encounter rates
of Chinese White Dolphins are deduced from the
survey effort and on-effort sighting data made under favourable conditions
(Beaufort 3 or below) in March 2018 are shown in Tables 2.12 & 2.13.
Table 2.12 Individual Survey Event Encounter Rates
|
|
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: Mar 8th / 12th |
0.0 |
0.0 |
Set
2: Mar 20th / 23rd |
0.0 |
0.0 |
|
NWL |
Set
1: Mar 8th / 12th |
1.7 |
5.2 |
Set
2: Mar 20th / 23rd |
12.3 |
56.7 |
|
Note: Dolphin
Encounter Rates are deduced from the two sets of surveys ( two surveys in
each set) in March
2018 in Northeast (NEL) and
Northwest Lantau (NWL) |
Table 2.13 Monthly Average Encounter Rates
|
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 |
Both Primary and Secondary Lines |
Primary
Lines Only |
Both Primary and Secondary Lines |
|
Northeast
Lantau |
0.0 |
0.0 |
0.0 |
0.0 |
Northwest
Lantau |
6.1 |
4.6 |
26.4 |
19.8 |
Note: Overall dolphin encounter rates (sightings per
100 km of survey effort) from all four surveys are conducted in March 2018 on primary lines only as well as
both primary lines and secondary lines in Northeast and Northwest Lantau
During this
month of dolphin monitoring, 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 Dolphin) was noticeable from general observations. Due to monthly variation in dolphin
occurrence within the Study Area, it would be more appropriate to draw
conclusion on whether any impacts on dolphins have been detected related to the
construction activities of the TM-CLKL Southern Connection Viaduct Section in
the quarterly EM&A reports, in which comparison on distribution, group size
and encounter rates of dolphins between the quarterly impact monitoring period
and baseline monitoring period will be made.
Daily
250 m marine mammal exclusion zone monitoring was undertaken during the period
of daytime marine works activities. No
sighting of Chinese White Dolphin was recorded in March 2018 during the
exclusion zone monitoring.
Passive
Acoustic Monitoring (PAM) had been decommissioned as no marine piling works was
carried out outside the daylight hours since September 2015.
Site inspections were carried out on a weekly basis to monitor the implementation
of proper environmental pollution control and mitigation measures under the
Contract. In the reporting month, five
(5) site inspections were carried out on 1, 6, 14, 21 and 29 March 2018.
Key observations during the site inspections are summarized in Table 2.14.
Table 2.14 Specific Observations Identified during the Weekly Site
Inspections in this Reporting Month
Inspection
Date |
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. |
The Contractor
has rectified all of the observations identified during environmental site
inspections in the reporting month.
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) and recyclable materials. Reference
has been made to the waste flow table prepared by the Contractor (Appendix M). The
quantities of different types of wastes are summarized in Table 2.15.
Table 2.15 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 |
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 2.16 below.
Table 2.16 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-354/2009/D |
13 Mar 2015 |
N/A |
HyD |
Tuen
Mun- Chek Lap Kok Link |
Environmental
Permit |
EP-353/2009/K |
11 Apr 2016 |
N/A |
HyD |
Hong
Kong Boundary Crossing Facilities |
Construction
Dust Notification |
361571 |
5 Jul 2013 |
N/A |
GCL |
|
Construction
Dust Notification |
362093 |
17 Jul 2013 |
N/A |
GCL |
For
Area 23 |
Chemical
Waste Registration |
5213-961-G2380-13 |
10 Oct 2013 |
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 2013 |
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 |
4 Nov 2013 |
N/A |
GCL |
Chemical
waste produced in Contract No. HY/2012/07 (WA5
adjacent to Cheung Tung Road, Yam O) |
Chemical
Waste Registration |
5213-951-G2380-17 |
12 Jun 2014 |
N/A |
GCL |
Viaducts
A, B, C, D & E |
Construction
Waste Disposal Account |
7017735 |
10 Jul 2013 |
N/A |
GCL |
- |
Construction
Waste Disposal Account |
7019470 |
3 Mar 2014 |
N/A |
GCL |
Vessel
CHIT Account |
Waste
Water Discharge License |
WT00019017-2014 |
13 May 2014 |
31 May 2019 |
GCL |
Discharge
for marine portion |
Waste
Water Discharge License |
WT00019018-2014 |
13 May 2014 |
31 May 2019 |
GCL |
Discharge
for land portion |
Construction Noise Permit for night
works and works in general holidays |
GW-RW0650-17 |
19 Dec 2017 |
18 Jun 2018 |
GCL |
General works at WA5 |
Construction Noise Permit for night
works and works in general holidays Construction Noise Permit for night
works and works in general holidays |
GW-RS1112-17 GW-RS1153-17 |
14 Dec 2017 31 Dec 2017 |
31 Mar 2018 31 Mar 2018 |
GCL GCL |
Broad Permit for Whole Site Areas Broad Permit for Segment Launching at
Land Portion |
Construction Noise Permit for night
works and works in general holidays |
GW-RS0064-18 |
1 Feb 2018 |
29 Jul 2018 |
GCL |
Pre-casted pile cap shell installation at E8-E13 |
|
|
|
|
|
|
In response to
the site audit findings, the Contractors carried out corrective actions.
A summary of the
Implementation Schedule of Environmental Mitigation Measures (EMIS) is
presented in Appendix C. The necessary mitigation measures were
implemented properly for this Contract.
The landscape
and visual (L&V) mitigation measures were also monitored on weekly basis in
the reporting period. The monitoring
status is summarized in Appendix C.
Results for
1-hour TSP, 24-hour TSP and construction noise monitoring complied with the
Action/ Limit levels in the reporting period.
One (1) Action
Level of Suspended Solids (SS) exceedances was recorded for water quality
impact monitoring in the reporting month.
The exceedances were considered not related to this Contract upon
further investigation and the investigation report is presented in Appendix N.
Cumulative
statistics on exceedances is provided in Appendix N.
The Environmental Complaint
Handling
Procedure is provided in Figure
2.6.
There was no
environmental complaint, notification of summons or successful prosecution
recorded in the reporting period.
Statistics on
complaints, notifications of summons, successful prosecutions are summarized in
Appendix N.
As informed by
the Contractor, the major works for this Contract in April 2018 will be:
· Pier
construction;
· Re-alignment of
Cheung Tung Road;
· Road works along
North Lantau Highway;
· Installation of
pier head and deck segments;
· Asphalt paving;
· Sign gantries
construction;
· Parapet
installation; and
· Slope work
of Viaducts A, B, C & D.
Potential
environmental impacts arising from the above upcoming construction activities
in the next reporting month of April 2018 are mainly associated with dust,
noise, marine water quality, marine ecology and waste management issues.
The tentative
schedules for environmental monitoring in April 2018 are provided in
Appendix F.
This Fifty-third
Monthly EM&A Report presents the findings of the EM&A activities
undertaken during the period from 1 to 31 March 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).
Air quality
(1-hour TSP and 24-hour TSP), noise, water quality (DO, turbidity and SS) and
dolphin monitoring were carried out in the reporting month. Results for air quality and noise monitoring
complied with the Action and Limit levels in the reporting period.
One (1) Action
Level of Suspended Solids (SS) exceedance was recorded for water quality impact
monitoring in the reporting month.
Investigation findings suggested the observed water quality exceedance
was not related to the works under this Contract.
Six (6) groups
of 26 Chinese White Dolphins were sighted during the two sets of monitoring
surveys in March 2018. During this month
of dolphin monitoring, 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 Dolphin) was noticeable from
general observations.
Environmental
site inspection was carried out five (5) times in March 2018. Recommendations on remedial actions were
given to the Contractor for the deficiencies identified during the site audits.
There was no
environmental complaint, notification of summons or successful prosecution
recorded in the 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.