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 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-seventh Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 30 September
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:
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Launching
gantry operation
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP Monitoring 5 sessions
1-hour TSP Monitoring 5 sessions
Water Quality Monitoring 12 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
Eighty-six (86) Action Level of Dissolved Oxygen (DO)
exceedances, four (4) Action Level of Suspended Solids (SS) exceedances and one
(1) Limit Level of Turbidity exceedance were recorded for water quality impact monitoring
in the reporting 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 September 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.
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
August. Summary of marine travel route
record for this reporting period will be provided in next 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 October 2017 include the following:
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Launching
gantry operation
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
Future Key
Issues
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of October 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-seventh 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 September 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:
Land-based Works
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Launching
gantry operation;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
The
locations of the construction activities are shown in Figure 1.3.
The Environmental Sensitive Receivers in the vicinity of the Project are
shown in Figure 1.4.
The 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 |
6, 12, 18, 21
and 27 September 2017 |
ASR 8A |
Area 4 |
On ground at
the works area, Area 4 |
6, 12, 18, 21
and 27 September 2017 |
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 September 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 |
85 |
22-169 |
394 |
500 |
ASR
9 |
99 |
21-206 |
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 |
33 |
17-50 |
178 |
260 |
ASR
9 |
37 |
22-61 |
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 6, 12, 18, 21 and 27
September 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 |
6, 12, 18, 21
and 27 September 2017 |
Table 2.6 Noise Monitoring Equipment
Equipment |
Brand and Model |
Integrated
Sound Level Meter |
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 |
64 |
62-67 |
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 operation, concrete work, 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 |
Sensitive
receiver (Tai Ho Inlet) |
814760 |
817867 |
|||
SR4a |
Sensitive
receiver |
815247 |
818067 |
|||
CS(Mf)3(N) |
Control
Station |
808814 |
822355 |
|||
CS(Mf)5 |
Control
Station |
817990 |
821129 |
|||
*Notes: 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). |
Table 2.9 Water Quality Monitoring Equipment
Equipment |
Brand and Model |
Multi-parameters (Dissolved Oxygen, Salinity, Turbidity,
Temperature, pH) |
YSI ProDSS / YSI 6920
V2 Sonde |
|
|
Positioning Equipment |
Furuno GP-170 |
Water Depth Detector |
Lowrance Mark 5x / Garmin Striker 4 |
Water Sampler |
WildCo Vertical Alpha Bottles 1120-2.2L /1120-3.2L Aquatic Research Instrument Vertical/Horizontal Point Water Sampler
2.2L / 3.0L |
Results of water quality monitoring between 1 June
2017 and 31 July 2017 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 ([1])
(2). 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.
Eighty-six
(86) Action Level of Dissolved Oxygen (DO) exceedances, four (4) Action Level
of Suspended Solids (SS) exceedances and one (1) Limit Level of Turbidity
exceedance were recorded for water quality impact monitoring in the reporting
month. Actions were taken in accordance
with the Event Action Plan as presented in Appendix L.
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
([2]).
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 15, 18, 22 and 29
September 2017 (Appendix F).
A total of 266.33 km of survey effort was collected,
with 97.9% 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 September 2017. Among the two
areas, 96.80 km and 169.53 km of survey effort were collected from NEL and NWL
survey areas, respectively. The total
survey effort conducted on primary and secondary lines were 195.67 km and 70.66
km, respectively. The survey efforts are
summarized in Appendix K.
Three (3) groups of 11 Chinese White Dolphins were sighted during the two sets of monitoring surveys in
September 2017. All dolphin sightings were made in NWL, while
none was sighted in NEL. During the
surveys in September 2017, all sightings were made during on-effort search,
while all on-effort sighting were 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 September 2017
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: Sep 15th / 18th |
0.0 |
0.0 |
Set
2: Sep 22nd / 29th |
0.0 |
0.0 |
|
NWL |
Set
1: Sep 15th / 18th |
0.0 |
0.0 |
Set
2: Sep 22nd / 29th |
3.6 |
16.3 |
|
Note: Dolphin Encounter Rates are deduced from
the two sets of surveys ( two surveys in each set) in September 2017
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 |
1.7 |
1.2 |
7.7 |
5.5 |
Note: Overall dolphin encounter rates (sightings
per 100 km of survey effort) from all four surveys are conducted in September 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 September 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 6, 13, 20 and 28 September 2017.
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 |
6 September 2017 |
Viaduct B
(Pier B17) Chemical
container was observed not placed in drip tray. General refuse in the
skip should be cleared. |
Viaduct B
(Pier B17) The Contractor was
reminded to place chemical container in drip tray. The Contractor was
reminded to clear general refuse in the skip. |
13 September 2017 |
Viaduct E
(Pier E10) Chemical containers on
the deck were observed not placed in drip tray. Stagnant water was
observed in drip tray. Tarpaulin should be
provided to cover the cement bags (over 20 bags). |
Viaduct E
(Pier E10) The Contractor was reminded to place
chemical containers in drip tray. The Contractor was
reminded to clear stagnant water in drip tray. The Contractor was
reminded to provide tarpaulin and cover cement bags. |
20 September 2017 |
Southern
Landfall Portion A (HKBCF
Portion S-c) Chemical
containers were observed not placed in drip tray. Watering on exposed road should be maintained for
dust suppression. |
Southern
Landfall Portion A (HKBCF
Portion S-c) The Contractor was reminded to maintain watering
on exposed road. The Contractor was
reminded to place chemical containers in drip tray. |
28 September 2017 |
Viaduct E (Pier E13CD) Oil stain was observed
near the generator. Stagnant water was
observed in drip tray. Southern
Landfall Portion A (HKBCF
Portion S-c) Watering should be applied during pile head
breaking works. |
Viaduct E (Pier E13CD) The Contractor was
reminded to clear oil stain near the generator. The
Contractor was reminded to clear stagnant water in drip tray. Southern
Landfall Portion A (HKBCF
Portion S-c) The Contractor was
reminded to apply watering during pile head breaking works. |
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 |
|||||||
September2017 |
3,147 |
0 |
0 |
185,420 |
18,100 |
0 |
1,517 |
1,047 |
127 |
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-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 Construction Noise Permit for night
works and works in general holidays |
GW-RS0639-17 GW-RS0829-17 |
31 Jul 2017 29 Sep 2017 |
29 Sep 2017 30 Nov 2017 |
GCL GCL |
Broad Permit for Segment Launching
at Land Portion 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-RS0668-17 PP-RS0010-17 |
7
Aug 2017 12
Jun 2017 |
6
Feb 2018 15
Sep 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/18-061 |
1 Jul 2017 16 Sep 2017 |
31 Dec 2017 15 Oct 2017 |
GCL GCL |
For
dumping Type I sediment For
dumping Type I and 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 1-hour TSP, 24-hour TSP and construction
noise monitoring complied with the Action/ Limit levels in the reporting
period.
Eighty-six (86) Action Level of Dissolved Oxygen (DO)
exceedances, four (4) Action Level of Suspended Solids (SS) exceedances and one
(1) Limit Level of Turbidity exceedance were recorded for water quality impact
monitoring in the reporting 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 October 2017 will be:
· Pier
construction;
· Re-alignment
of Cheung Tung Road;
· Road
works along North Lantau Highway;
· Launching
gantry operation;
· Installation
of pier head and deck segments; and
· Slope
work of Viaducts A, B & C.
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of October 2017 are
mainly associated with dust, noise, marine water quality, marine ecology and
waste management issues.
The tentative schedules for environmental
monitoring in October 2017 are provided in Appendix F.
This Forty-seventh Monthly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 1 to
30 September 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 air quality
and noise monitoring complied with the Action and Limit levels in the reporting
period.
Eighty-six (86) Action Level of Dissolved Oxygen (DO)
exceedances, four (4) Action Level of Suspended Solids (SS) exceedances and one
(1) Limit Level of Turbidity exceedance were recorded for water quality impact monitoring
in the reporting month. Investigation
findings suggested the observed water quality exceedances were not related to
the works under this Contract.
Three (3)
groups of 11 Chinese White Dolphins were sighted during the two sets of monitoring surveys in
September 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 September 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.
No
non-compliance with EIA recommendations, EP conditions and other requirements
associated with the marine travel route record of this Contract was recorded in
August. Summary of marine travel route
record for this reporting period will be provided in 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.