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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 ¡V 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-eighth Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 31
October 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
¡P
Pier construction;
¡P
Re-alignment of Cheung Tung Road;
¡P
Road works along North Lantau Highway;
¡P
Launching gantry operation
¡P
Installation of pier head and deck segments; and
¡P
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 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
Five (5) Action Level of Dissolved Oxygen (DO)
exceedances 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 October 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 November 2017 include the following:
Land-based Works
¡P
Pier construction;
¡P
Re-alignment of Cheung Tung Road;
¡P
Road works along North Lantau Highway;
¡P
Launching gantry operation
¡P
Installation of pier head and deck segments; and
¡P
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 November 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 ¡V
Zhuhai ¡V Macao Bridge (HZMB). In
order to cope with the anticipated traffic demand, two new road sections
between NWNT and North Lantau ¡V Tuen Mun ¡V 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-eighth Monthly EM&A Report under
the Contract No. HY/2012/07
Tuen Mun ¡V Chek Lap Kok Link ¡V Southern
Connection Viaduct Section. This report presents a summary of the
environmental monitoring and audit works in October 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
¡P
Pier construction;
¡P
Re-alignment of Cheung Tung Road;
¡P
Road works along North Lantau Highway;
¡P
Launching gantry operation;
¡P
Installation of pier head and deck segments; and
¡P
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 |
3, 9, 12,
18, 24 and 30 October 2017 |
ASR 8A |
Area 4 |
On ground at
the works area, Area 4 |
3, 9, 12,
18, 24 and 30 October 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 October
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 |
69 |
22-156 |
394 |
500 |
ASR
9 |
77 |
28-140 |
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 |
60 |
21-102 |
178 |
260 |
ASR
9 |
59 |
28-93 |
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 3, 9, 12, 18, 24 and
30 October 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 |
3, 9, 12,
18, 24 and 30 October 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 |
63 |
62-64 |
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, rock breaking, hammering, 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(¢XC)
pH (pH unit)
Turbidity (NTU)
Water depth (m)
Salinity (ppt)
Dissolved Oxygen
(DO) (mg/L and % of saturation) ¡P 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. |
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 |
Five (5) Action Level of
Dissolved Oxygen (DO) exceedances 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 ([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 4, 9, 18 and 26
October 2017 (Appendix F).
A total of 274.33 km of survey effort was collected,
with 90.3% 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 October 2017. Among the
two areas, 105.80 km and 168.53 km of survey effort were collected from NEL and
NWL survey areas, respectively. The
total survey effort conducted on primary and secondary lines were 191.69 km and
82.64 km, respectively. The survey
efforts are summarized in Appendix K.
Four (4) groups of 8 Chinese White Dolphins were sighted during the two sets of monitoring surveys in October 2017. All
dolphin sightings were made in NWL, while none was sighted in NEL. During the surveys in October 2017, all
sightings were made during on-effort search, while all on-effort sighting were
made on primary lines. One of the
dolphin groups was associated with operating fishing vessel but 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 October 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: Oct 4th / 9th |
0.0 |
0.0 |
Set
2: Oct 18th / 26th |
0.0 |
0.0 |
|
NWL |
Set
1: Oct 4th / 9th |
1.9 |
9.3 |
Set
2: Oct 18th / 26th |
4.9 |
4.9 |
|
Note: Dolphin Encounter Rates are deduced
from the two sets of surveys ( two surveys in each set) in October
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 |
3.5 |
2.6 |
7.0 |
5.2 |
Note: Overall dolphin encounter rates
(sightings per 100 km of survey effort) from all four surveys are conducted in October 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 October 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,
five (5) site inspections were carried out on 4, 11, 18, 26 and 31 October
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 |
4 October 2017 |
Viaduct E
(Pier E12) Oil
stain was observed near the generator. |
Viaduct B
(Pier B17) The Contractor was
reminded to clear the oil as chemical waste. |
11 October
2017 |
Viaduct B
(Pier B18) Chemical container was observed
not placed in drip tray. EP should be replaced
near the site entrance. |
Viaduct B
(Pier B18) The Contractor was reminded to
place chemical container in drip tray. The Contractor was
reminded to replace the missing pages of EP near the site entrance. |
18 October
2017 |
Viaduct E
(Pier E13AB) Oil
stain was observed near the drip tray. Drip
tray was observed not properly plugged. |
Viaduct B
(Pier B18) The Contractor was reminded to clear oil stain
near to drip tray. The Contractor was reminded
to plug the drip tray properly. |
26 October
2017 |
Viaduct A
(Pier A10) Chemical
waste should be handled with care and disposed of at designated area. Viaduct A
(Ramp A) (Area A) Chemical
containers were observed not placed in drip tray. General
refuse should be cleared. NRMM
label was observed not provided on the excavator. Viaduct E
(Pier E8) Drip
tray was observed not properly plugged. |
Viaduct A
(Pier A10) The
Contractor was reminded to handle chemical waste with care and disposed them of
at designated area. Viaduct A
(Ramp A) (Area A) The Contractor was reminded to
place chemical container in drip tray. The
Contractor was reminded to clear general refuse. The
Contractor was reminded to provide NRMM label on the excavator. Viaduct E
(Pier E8) The Contractor was
reminded to plug the drip tray. |
31 October
2017 |
Viaduct B (Pier B16) General refuse near the
skip should be cleared. Chemical
container was observed not placed in drip tray. |
Viaduct E (Pier E13CD) The Contractor was reminded
to clear general refuse near the skip. The
Contractor was reminded to place chemical container in 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 |
|||||||
October 2017 |
3,005 |
0 |
0 |
172,690 |
63 |
0 |
0 |
0 |
0 |
Notes: |
|||||||||
(a)
Inert construction wastes include hard rock and
large broken concrete, and materials disposed as public fill. (b)
Non-inert construction wastes include general refuse
disposed at landfill. (c)
Recyclable materials include metals, paper,
cardboard, plastics, timber, felled trees and others. |
The Contractor was advised to properly maintain on
site C&D materials and waste collection, sorting and recording system,
dispose of C&D materials and wastes at designated ground and maximize
reuse/ recycle of C&D materials and wastes. The Contractor was also reminded to
properly maintain the site tidiness and dispose of the wastes accumulated on
site regularly and properly.
For chemical waste containers, the Contractor was
reminded to treat properly and store temporarily in designated chemical waste
storage area on site in accordance with the Code
of Practice on the Packaging, Labelling and Storage of Chemical Wastes.
The status of environmental licensing and permit is
summarized in Table 2.16 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-RS0829-17 GW-RS0668-17 |
29 Sep 2017 7 Aug 2017 |
30 Nov 2017 6 Feb 2018 |
GCL GCL |
Broad Permit for Segment Launching
at Land Portion Pre-casted pile cap shell
installation at E8-E13 |
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.
Five (5) Action Level of Dissolved Oxygen (DO)
exceedances
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 November 2017 will be:
¡P
Pier construction;
¡P
Re-alignment of Cheung Tung Road;
¡P
Road works along North Lantau Highway;
¡P
Launching gantry operation;
¡P
Installation of pier head and deck segments; and
¡P
Slope work of Viaducts A, B & C.
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of November 2017
are mainly associated with dust, noise, marine water quality, marine ecology
and waste management issues.
The tentative schedules for environmental monitoring
in November 2017 are provided in Appendix F.
This Forty-eighth Monthly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 to 31
October 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.
Five (5) Action Level of Dissolved Oxygen (DO)
exceedances 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.
Four (4)
groups of 8 Chinese White Dolphins were sighted during the two sets of monitoring surveys in
October 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 five (5)
times in October 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.