Table of
Contents
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 Dolphin Monitoring Survey Results
Appendix
K Event Action Plan
Appendix
L 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 Environ Hong Kong Ltd. was employed by the HyD as the Independent Environmental Checker (IEC) and
Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A. Further
applications for variation of environmental permit (VEP), EP-354/2009/B, EP-354/2009/C
and EP-354/2009/D, were granted on 28
January 2014, 10 December 2014 and 13 March 2015, respectively.
The southern landfall of TM-CLK Link lies alongside
the Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities
(HKBCF) where a reclamation area is constructed by Contract No. HY/2010/02
under Environmental Permit No. EP-353/2009/K and EP-354/2009/D. Upon the agreement and confirmation between
the Supervising Officer Representatives and Contractors of HY/2010/02 and HY/2012/07
in September 2015, part of the reclamation area for southern landfall under EP-353/2009/K and EP-354/2009/D was handed-over to Contract No. HY/2012/07. Another part of the southern landfall area
under EP-354/2009/D was handed-over
to Contract No. HY/2012/07 after
completion of reclamation works by Contract
No. HY/2010/02 in June 2016.
The construction phase of the Contract commenced on 31
October 2013 and will be tentatively completed by 2018. The impact monitoring of the EM&A programme, including air quality, noise, water quality and
marine ecological monitoring as well as environmental site inspections,
commenced on 31 October 2013.
This is the Forty-fifth Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 31 July
2017 for the Southern Connection Viaduct
Section in accordance with the Updated EM&A Manual of the
TM-CLK Link Project. As informed by the Contractor, major
activities in the reporting period included:
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation;
· Installation
of deck segment and pier head segment; and
· Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP Monitoring 5
sessions
1-hour TSP Monitoring 5
sessions
Water Quality Monitoring([1]) 13 sessions
Noise Monitoring 5
sessions
Impact Dolphin Monitoring 2 sessions
Joint Environmental Site Inspection 4 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
No exceedance of Action and Limit Levels 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 July 2017 during the exclusion zone monitoring.
Environmental
Complaints, Non-compliance & Summons
There was no environmental complaint, notification of
summons or successful prosecution recorded in the reporting period.
Reporting
Change
There was no reporting change in the reporting period.
Upcoming Works for the Next Reporting Period
Works to be undertaken in the next monitoring period
of August 2017 include the following:
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation;
· Installation
of deck segment and pier head segment; and
· Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
Future Key
Issues
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of August 2017 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 Environ Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and
Environmental Project Office (ENPO) in accordance with Environmental Permit No. EP-354/2009/A.
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 Forty-fifth 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 July 2017.
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 Environ Hong Kong Ltd.) |
ENPO Leader |
Y.H. Hui |
3465
2850 |
3465 2899 |
IEC |
Dr. F.C.
Tsang |
3465
2851 |
3465 2899 |
|
Contractor (Gammon
Construction Limited) |
Environmental
Manager |
Brian Kam |
3520 0387 |
3520 0486 |
Environmental
Officer |
Roy Leung |
3520 0387 |
3520 0486 |
|
|
24-hour
Complaint Hotline |
|
9738 4332 |
|
ET (ERM-HK) |
ET Leader |
Jovy Tam |
2271 3113 |
2723 5660 |
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:
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation;
· Installation
of deck segment and pier head segment; and
· Construction
of underslung truss scheme (no additional seabed will be occupied other than
those assumed in the approved EIA Report).
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
The
locations of the construction activities are shown in Figure 1.3.
The Environmental Sensitive Receivers in the vicinity of the Project are
shown in Figure 1.4.
The 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, 11, 17,
20 and 26 July 2017 |
ASR 8A |
Area 4 |
On ground at
the works area, Area 4 |
5, 11, 17,
20 and 26 July 2017 |
High Volume Samplers (HVSs)
were used for carried out 1-hour and 24-hour TSP monitoring on 5,
11, 17, 20 and 26 July 2017 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 July 2017
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 |
49 |
41-61 |
394 |
500 |
ASR
9 |
63 |
38-93 |
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 |
37 |
20-43 |
178 |
260 |
ASR
9 |
41 |
30-54 |
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 K.
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, 11, 17, 20 and 26
July 2017 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, 11, 17,
20 and 26 July 2017 |
Table 2.6 Noise Monitoring Equipment
Equipment |
Brand and Model |
Integrated
Sound Level Meter |
Rion
NL-31 / Rion NL-52 |
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 |
63 |
62-63 |
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 K.
Major noise sources during the noise monitoring
included noise from crane operation, hammering, nearby traffic noise and
aircraft noise.
Results of water quality monitoring were adopted from
the published EM&A data of Contract
No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong
Boundary Crossing Facilities – Reclamation Works
([2]) ([3]).
The locations of the monitoring stations covered by Contract No. HY/2010/02 are shown in Figure 2.3 and those overlapped with Contract No. HY/2012/07 are presented in Table 2.8.
Table 2.8 Locations of Impact Water Quality Monitoring Stations and its
Corresponding Monitoring Requirements
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) |
814705 |
817859 |
|||
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. Station SR4a is not covered by HY/2010/02. Data from Station SR4(N)
is considered representative of those from SR4a since they are located 50m
from each other and coral colonies, which is the SR concerned at SR4a, are
also presented along the seawall nearby SR4(N). |
Neither Action nor Limit Levels exceedances was
recorded by the Environmental Team of Contract No. HY/2010/02 during the reporting period. No action is thus required to be undertaken
in accordance with the Event Action Plan presented in Appendix K.
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 2.9
summarizes the equipment used for the impact dolphin monitoring.
Table 2.9 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 2.10
below.
Table 2.10 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 |
805475 |
815913 |
14 |
Start
Point |
817537 |
820220 |
2 |
End
Point |
805477 |
826654 |
14 |
End
Point |
817537 |
824613 |
3 |
Start
Point |
806464 |
819435 |
15 |
Start
Point |
818568 |
820735 |
3 |
End
Point |
806464 |
822911 |
15 |
End
Point |
818568 |
824433 |
4 |
Start
Point |
807518 |
819771 |
16 |
Start
Point |
819532 |
821420 |
4 |
End
Point |
807518 |
829230 |
16 |
End
Point |
819532 |
824209 |
5 |
Start
Point |
808504 |
820220 |
17 |
Start
Point |
820451 |
822125 |
5 |
End
Point |
808504 |
828602 |
17 |
End
Point |
820451 |
823671 |
6 |
Start
Point |
809490 |
820466 |
18 |
Start
Point |
821504 |
822371 |
6 |
End
Point |
809490 |
825352 |
18 |
End
Point |
821504 |
823761 |
7 |
Start
Point |
810499 |
820880 |
19 |
Start
Point |
822513 |
823268 |
7 |
End
Point |
810499 |
824613 |
19 |
End
Point |
822513 |
824321 |
8 |
Start
Point |
811508 |
821123 |
20 |
Start
Point |
823477 |
823402 |
8 |
End
Point |
811508 |
824254 |
20 |
End
Point |
823477 |
824613 |
9 |
Start
Point |
812516 |
821303 |
21 |
Start
Point |
805476 |
827081 |
9 |
End
Point |
812516 |
824254 |
21 |
End
Point |
805476 |
830562 |
10 |
Start
Point |
813525 |
820872 |
22 |
Start
Point |
806464 |
824033 |
10 |
End
Point |
813525 |
824657 |
22 |
End
Point |
806464 |
829598 |
11 |
Start
Point |
814556 |
818853 |
23 |
Start
Point |
814559 |
821739 |
11 |
End
Point |
814556 |
820992 |
23 |
End
Point |
814559 |
824768 |
12 |
Start
Point |
815542 |
818807 |
|
|
|
|
12 |
End
Point |
815542 |
824882 |
|
|
|
|
The Action and Limit levels of dolphin impact
monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix K.
Dolphin monitoring was carried out on 20, 24, 27 and
28 July 2017 (Appendix F).
A total of 265.21 km of survey effort was collected,
with 99.40% 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 July 2017. Among the two
areas, 96.30 km and 168.91 km of survey effort were collected from NEL and NWL
survey areas, respectively. The total
survey effort conducted on primary and secondary lines were 194.61 km and 70.60
km, respectively. The survey efforts are
summarized in Appendix J.
Two (2) groups of 11 Chinese White Dolphins were sighted during the two sets of monitoring surveys in
July 2017. Both dolphin
sightings were made in NWL, while none was sighted in NEL. During the surveys in July 2017, all
sightings were made during on-effort search, while one of the two on-effort
sighting was made on primary lines. The
dolphin group was not 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 July 2017 are shown in Tables 2.11 & 2.12.
Table 2.11 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: July 20th / 24th |
0.0 |
0.0 |
Set
2: July 27th / 28th |
0.0 |
0.0 |
|
NWL |
Set
1: July 20th / 24th |
1.64 |
14.79 |
Set
2: July 27th / 28th |
0.0 |
0.0 |
|
Note: Dolphin Encounter Rates are deduced from
the two sets of surveys ( two surveys in each set) in July
2017 in Northeast (NEL) and Northwest Lantau (NWL) |
Table 2.12 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 |
0.8 |
1.2 |
7.3 |
6.6 |
Note: Overall dolphin encounter rates (sightings per
100 km of survey effort) from all four surveys are conducted in July 2017 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 July 2017 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, four
(4) site inspections were carried out on 5, 12, 19 and 27 July 2017.
Key
observations during the site inspections are summarized in Table 2.13.
Table 2.13 Specific Observations Identified during the Weekly Site
Inspections in this Reporting Month
Inspection Date |
Environmental Observations |
Recommendations/ Remarks |
5 July 2017 |
Viaduct E
(Pier E4) Chemical containers in
the deck were observed not placed in drip tray. NRMM label should be
provided on the generator. |
Viaduct E
(Pier E4) The Contractor was
reminded to place chemical containers in drip tray. The Contractor was
reminded to provide NRMM label on the generator. |
12 July 2017 |
Southern
Landfall Portion A (Portion S-c) Chemical container was
observed not placed in drip tray. |
Southern
Landfall Portion A (Portion S-c) The Contractor was reminded to
place chemical container in drip tray. |
19 July 2017 |
Viaduct E
(Pier E12) General refuse should be cleared regularly. Viaduct E (Pier E11) Chemical containers were
observed not placed in drip tray. Air compressor was
observed not fully placed in drip tray. |
Viaduct E
(Pier E12) The Contractor was reminded to clear general refuse
regularly. Viaduct E (Pier E11) The Contractor was reminded to place chemical containers
in drip tray. The Contractor was reminded to fully place the air
compressor in drip tray. |
27 July 2017 |
Ramp C (Area I) Chemical containers on
the deck were observed not placed in drip tray. General refuse should be cleared regularly. Viaduct C
(Pier C15) Stockpile
was observed not being fully covered by tarpaulin. Ramp D (Area I) Chemical containers were
observed not placed in drip tray. Watering should be provided
on unpaved road. |
Ramp C (Area I) The Contractor was
reminded to place chemical containers on the deck in drip tray. The
Contractor was reminded to clear general refuse regularly. Viaduct C (Pier C15) The Contractor was reminded
to fully cover stockpile by tarpaulin. Ramp D (Area I) The Contractor was
reminded to place chemical containers in drip tray. The Contractor was
reminded to provide watering on unpaved road. |
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 L).
The quantities of different types of wastes are summarized in Table 2.14.
Table 2.14 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) |
|||||||
July 2017 |
4,921 |
0 |
696 |
159,980 |
91 |
800 |
1056 |
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 2.15 below.
Table 2.15 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 March 2015 |
N/A |
HyD |
Tuen Mun- Chek Lap Kok Link |
Environmental Permit |
EP-353/2009/K |
11 April 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-RW0294-17 |
19
Jun 2017 |
18
Dec 2017 |
GCL |
General works at WA5 |
Construction Noise Permit for night
works and works in general holidays |
GW-RS0540-17 |
20
Jun 2017 |
15
Dec 2017 |
GCL |
Broad Permit for Whole Site Areas |
Construction Noise Permit for night
works and works in general holidays |
GW-RS0456-17 |
31 May 2017 |
31 Jul 2017 |
GCL |
Broad Permit for Segment Launching
at Land Portion |
Construction Noise Permit for night
works and works in general holidays Construction Noise Permit for
percussive piling |
GW-RS0408-17 PP-RS0010-17 |
11
May 2017 12
June 2017 |
30
Sept 2017 15
Sept 2017 |
GCL GCL
|
Pre-casted pile cap shell
installation at E8-E13 Percussive piling at Portion A |
Marine Dumping Permit Marine Dumping Permit |
EP-MD-18-031 EP-MD-17-196 |
01 Jul 2017 01 Jul 2017 |
31 Dec 2017 31 Jul 2017 |
GCL GCL |
For
dumping Type I sediment For
dumping Type II sediment |
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 water quality, 1-hour TSP, 24-hour TSP and
construction noise monitoring complied with the Action/ Limit levels in the
reporting period.
Cumulative statistics on exceedances is provided in Appendix M.
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 M.
As informed by the Contractor, the major works for
this Contract in August 2017 will be:
Marine Works
· Uninstallation
of marine piling platform;
· Pier
construction;
· Launching
gantry operation; and
· Installation
of deck segment and pier head segment; and
· Construction
of underslung truss scheme (no additional seabed will be occupied other than those
assumed in the approved EIA Report).
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of August 2017 are
mainly associated with dust, noise, marine water quality, marine ecology and
waste management issues.
The tentative schedules for environmental monitoring in
August 2017 are provided in Appendix F.
This Forty-fifth Monthly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 to 31
July 2017 in accordance with the Updated EM&A Manual and the requirements
of the Environmental Permits (EP-354/2009/D
and EP-353/2009/K).
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 water
quality, air quality and noise monitoring complied with the Action and Limit
levels in the reporting period.
Two (2) groups of 11 Chinese White Dolphins were sighted during the two sets of monitoring surveys in
July 2017. 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 four (4)
times in July 2017. 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.
([1]) Results of impact water quality monitoring were adopted from
the published EM&A data of
Contract No. HY/2010/02 HKBCF –
Reclamation Works. Available at http://www.hzmbenpo.com/
([2]) Published EM&A data for impact water quality monitoring by Contract
No. HY/2010/02 are available at: http://www.hzmbenpo.com/