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 Water Quality Monitoring
2.3 Dolphin Monitoring
2.4 EM&A Site Inspection
2.5 Waste Management Status
2.6 Environmental Licenses and
Permits
2.7 Implementation Status of
Environmental Mitigation Measures
2.8 Summary of Exceedances of the
Environmental Quality Performance Limit
2.9 Summary of Complaints,
Notification of Summons and Successful Prosecutions
3.1 Construction Activities 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
Under Contract No. HY/2012/08,
Dragages – Bouygues Joint Venture (DBJV) is
commissioned by the Highways Department (HyD) to
undertake the design and construction of the Northern Connection Sub-sea Tunnel
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) in accordance with Environmental
Permit No. EP-354/2009/A. Ramboll Environ
Hong Kong Ltd. was employed by HyD as the Independent
Environmental Checker (IEC) and Environmental Project Office (ENPO). Subsequent applications for
variation of environmental permits (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 construction phase of the Project commenced on 1
November 2013 and will tentatively be completed by the end of 2018. The impact monitoring of the EM&A programme, including air quality, water quality, marine
ecological monitoring and environmental site inspections, were commenced on 1
November 2013.
This is the Fortieth Monthly EM&A report presenting
the EM&A works carried out during the period from 1 to 28 February 2017 for
the Contract No. HY/2012/08 Northern Connection
Sub-sea Tunnel Section (the “Project”) 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
·
Box Culvert Extension at Works Area – Portion N-A;
·
Construction of North Ventilation Building – Portion
N-C;
·
Construction of Cross Passage Tympanum – TBM tunnel;
·
Cross Passage Lining Installation – TBM Tunnel;
·
Excavation of Sub-sea Tunnel – TBM tunnel;
·
Corbel Construction – TBM Tunnel;
·
Sub-sea Tunnel Gallery Installation – TBM tunnel;
·
Jet Grouting, CSM Ground Treatment and Diaphragm Wall
Construction – Portion S-A.
Marine-based Works
·
Construction of Vertical Seawall at Portion N-A; and
·
Band drain and Filling works at Portion N-A
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP Monitoring 9
sessions
1-hour TSP Monitoring 9
sessions
Water Quality Monitoring 12 sessions
Impact Dolphin Monitoring 2 sessions
Joint Environmental Site Inspection 4 sessions
Implementation
of Marine Mammal Exclusion Zone
Daily
marine mammal exclusion zone was in effect during the period of dredging, reclamation or marine sheet
piling works in open waters under
this Contract. Passive Acoustic
Monitoring (PAM) was also implemented for the detection of marine mammal when
dredging, reclamation
or marine sheet piling works were
carried out outside the daylight hours under this Contract. No sighting of the Indo-Pacific humpback
dolphin Sousa chinensis
(i.e. Chinese White Dolphin) was recorded in February 2017 during the exclusion
zone monitoring.
Summary of Breaches of Action/Limit Levels
Breaches of
Action and Limit Levels for Air Quality
No Action Level or Limit Level of air quality
exceedances were recorded in the air quality monitoring of this reporting
month.
Breaches of
Action and Limit Levels for Dolphin Monitoring
Whilst
one (1) Limit Level exceedance was observed for the quarterly dolphin
monitoring data between December 2016 and February 2017, no unacceptable impact
from the construction activities of the TM-CLKL
Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins 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
Northern Connection Sub-sea Tunnel Section in the quarterly EM&A reports,
where comparison on distribution, group size and encounter rates of dolphins
between the quarterly impact monitoring period and baseline monitoring period
will be made.
Breaches of
Action and Limit Levels for Water Quality
No Action Level or Limit Level of water quality
exceedances were recorded in the water quality monitoring of this reporting
month.
Environmental Complaints, Non-compliance & Summons
No
non-compliance with EIA recommendations, EP conditions and other requirements
associated with the construction of this Contract was recorded in this
reporting period.
One
(1) environmental complaint case regarding sewage discharge at the east of the
artificial island of the Hong Kong – Zhuhai–Macao Bridge was referred by IEC on 16 January 2017.
The complaint investigation report is provided in Appendix L.
One
(1) environmental complaint case regarding muddy water discharge at the site
area near Ho Yeung Street was referred by EPD on 14 February 2017. The
environmental complaint case on 14 February 2017 is under investigation. The complete investigation
findings will be provided in the Forty-first
Monthly EM&A Report.
No environmental summons was received in this
reporting period.
Summary of Marine Travel Route record
The marine travel route records of January and
February are still under preparation. Reporting of any non-compliance of marine
travel route during January, February and March will be provided in the Forty-first Monthly EM&A Report.
Reporting
Change
There was no reporting change required in the
reporting period.
Upcoming Works for the Next Reporting Month
Works to be undertaken in the next monitoring period
of March 2017 include the following:
Marine-based Works
·
Construction of Vertical Seawall at Portion N-A; and
·
Band drain and Filling works at Portion N-A
Land-based Works
·
Box Culvert Extension at Works Area – Portion N-A;
·
Construction of North Ventilation Building – Portion
N-C;
·
Construction of Cross Passage Tympanum – TBM tunnel;
·
Cross Passage Lining Installation – TBM Tunnel;
·
Excavation of Sub-sea Tunnel – TBM tunnel;
·
Corbel Construction – TBM Tunnel;
·
Sub-sea Tunnel Gallery Installation – TBM tunnel;
·
Jet Grouting, CSM Ground Treatment and Diaphragm Wall
Construction – Portion S-A.
Future Key Issues
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of March 2017 are
mainly associated with dust, 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 (VEP) (EP-354/2009/A) was issued on 8 December
2010. Subsequent applications for
variation of environmental permits (VEPs), EP-354/2009/B,
EP-354/2009/C and EP-354/2009/D,
were granted on 28 January 2014, 10 December 2014 and 13 March 2015,
respectively.
Under Contract No. HY/2012/08,
Dragages – Bouygues Joint Venture (DBJV) is
commissioned by the Highways Department (HyD) to
undertake the design and construction of the Northern Connection Sub-sea Tunnel
Section of TM-CLKL 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).
Layout of the Contract components is
presented in Figure 1.1.
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 |
Highways
Department |
Engr
16/HZMB |
Kenneth Lee |
2762 4996 |
3188 6614 |
SOR (AECOM Asia
Company Limited) |
Chief
Resident Engineer |
Edwin Ching Andrew
Westmoreland |
2293 6388 2293 6360 |
2293 6300 2293 6300 |
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 (Dragages – Bouygues Joint Venture) |
Environmental
Manager |
C.F. Kwong |
2293 7322 |
2293 7499 |
Environmental
Officer |
Bryan Lee |
2293 7323 |
2293 7499 |
|
|
Environmental
Officer |
David Ho |
6628 8684 |
2293 7499 |
|
24-hour
complaint hotline |
Rachel Lam |
2293 7330 |
|
ET (ERM-HK) |
ET Leader |
Jovy Tam |
2271 3113 |
2723 5660 |
Table
1.2 Summary of Construction Activities Undertaken during the
Reporting Period
Construction Activities Undertaken |
Land-based Works |
·
Box Culvert Extension at Works Area – Portion N-A; ·
Construction of North Ventilation Building – Portion
N-C; ·
Construction of Cross Passage Tympanum – TBM tunnel; ·
Cross Passage Lining Installation – TBM Tunnel; ·
Excavation of Sub-sea Tunnel – TBM tunnel; ·
Corbel Construction – TBM Tunnel; ·
Sub-sea Tunnel Gallery Installation – TBM tunnel; ·
Jet Grouting, CSM Ground Treatment and Diaphragm
Wall Construction – Portion S-A. Marine-based
Works ·
Construction of Vertical Seawall at Portion N-A; and ·
Band drain and Filling works at Portion N-A |
Figure 1.2 Locations of Construction Activities –
February 2017
|
The EM&A programme
required environmental monitoring for air quality, 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 and the
Enhanced TSP Monitoring Plan, 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. 1-hr and 24-hr TSP monitoring frequency was
increased to three times per day every three days and daily every three days,
respectively, as excavation works for launching shaft commenced on 24 October
2014.
High volume samplers (HVSs) were used to carry out the
1-hour and 24-hour TSP monitoring on 2, 5, 8, 11, 14, 17, 20, 23 and 26
February 2017 at the five (5) air quality monitoring stations in accordance
with the requirements stipulated in the Updated EM&A Manual (Figure 2.1; Table 2.1). Wind meter was installed at the rooftop of
ASR5 for logging wind speed and wind direction.
Details of the equipment deployed are provided in Table 2.2. Copies of the
calibration certificates for the equipment are presented in Appendix E.
Table 2.1 Locations of Impact Air Quality
Monitoring Stations and Monitoring Dates in this Reporting Period
Monitoring Station |
Monitoring Dates |
Location |
Description |
Parameters
& Frequency |
ASR1 |
2,
5, 8, 11, 14, 17, 20, 23 and 26 February 2017 |
Tuen Mun Fireboat Station |
Office |
TSP monitoring
1-hour Total
Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 6
days
24-hour Total
Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in
every 6 days Enhanced TSP monitoring (commenced on 24 October 2014)
1-hour Total
Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 3
days
24-hour Total
Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in
every 3 days |
ASR5 |
|
Pillar
Point Fire Station |
Office |
|
AQMS1 |
|
Previous
River Trade Golf |
Bare
ground |
|
ASR6 |
|
Butterfly
Beach Laundry |
Office |
|
ASR10 |
|
Butterfly
Beach Park |
Recreational
uses |
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 Meter |
Davis (Model: Vantage Pro 2 (S/N: AS160104014) |
Wind Anemometer for calibration |
Lutron (Model No. AM-4201) |
The Action and Limit Levels of the air quality
monitoring is provided in Appendix D. The Event and Action plan is presented in Appendix K.
The schedule for air quality monitoring in February
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 and graphical presentations are presented in Appendix G.
Table 2.3 Summary of 1-hour TSP Monitoring Results in this Reporting
Period
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
ASR1 |
124 |
63
- 179 |
331 |
500 |
ASR5 |
149 |
56
- 202 |
340 |
500 |
AQMS1 |
94 |
49
- 161 |
335 |
500 |
ASR6 |
136 |
61
- 205 |
338 |
500 |
ASR10 |
85 |
42
- 142 |
337 |
500 |
Table 2.4 Summary of 24-hour TSP Monitoring Results in this Reporting
Period
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
ASR1 |
70 |
44
- 93 |
213 |
260 |
ASR5 |
79 |
48
- 100 |
238 |
260 |
AQMS1 |
69 |
50
- 88 |
213 |
260 |
ASR6 |
72 |
42
- 104 |
238 |
260 |
ASR10 |
57 |
44
- 76 |
214 |
260 |
The weather condition during the monitoring period
varied from sunny to cloudy. The major
dust sources in the reporting period included construction activities under the
Contract as well as nearby traffic emissions.
A total of 9 monitoring events were undertaken in
which no Action or Limit Level exceedances of 1-hr TSP were recorded in this
reporting month. No Action or Limit
Level exceedances for 24-hr TSP were record.
Meteorological information collected at the ASR5,
including wind speed and wind direction, is provided in Appendix H.
In accordance with the Updated EM&A Manual, impact
water quality monitoring was carried out three days per week during the
construction period at nine (9) water quality monitoring stations (Figure 2.2; Table
2.5).
Table 2.5 Locations of Water Quality Monitoring Stations and the
Corresponding Monitoring Requirements
Station ID |
Type |
Coordinates |
*Parameters,
unit |
Depth |
Frequency |
|
|
|
Easting |
Northing |
|
|
|
IS12 |
Impact Station |
813218 |
823681 |
Temperature(°C) pH(pH unit) Turbidity (NTU) Water depth (m) Salinity (ppt) DO (mg/L and % of saturation) · SS (mg/L) |
3 water depths:
1m below sea
surface, mid-depth and 1m above sea bed. If the water depth is less than 3m,
mid-depth sampling only. If water
depth less than 6m, mid-depth may be omitted. |
Impact monitoring: 3 days
per week, at mid-flood and mid-ebb tides during the construction period of
the Contract. |
IS13 |
Impact
Station |
813667 |
824325 |
|||
IS14 |
Impact
Station |
812592 |
824172 |
|||
IS15 |
Impact
Station |
813356 |
825008 |
|||
CS4 |
Control /
Far Field Station |
810025 |
824004 |
|||
CS6 |
Control /
Far Field Station |
817028 |
823992 |
|||
SR8 |
Sensitive receiver (Gazettal beaches in Tuen Mun) |
816306 |
825715 |
|||
SR9 |
Sensitive receiver |
813601 |
825858 |
|||
SR10A |
Sensitive receiver |
823741 |
823495 |
|||
*Notes: In addition to the parameters presented
monitoring location/position, time, water depth, sampling depth, tidal
stages, weather conditions and any special phenomena or works underway nearby
were also recorded. |
Table 2.6
summarizes the equipment used in the impact water quality monitoring programme. Copies of the calibration certificates are attached in Appendix E.
Table 2.6 Water Quality Monitoring Equipment
Equipment |
Model |
Water Sampler |
Kahlsico Water-Bottle Model 135DW 150 |
Dissolved Oxygen Meter |
YSI Pro 2030 |
pH Meter |
HANNA HI 9125 |
Turbidity Meter |
HACH 2100Q |
Monitoring Position Equipment |
“Magellan” Handheld GPS Model explorist GC |
DGPS Koden KGP913MK2 (1) |
The Action and Limit levels of water quality impact
monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix K.
The schedule for water quality monitoring in February
2017 is provided in Appendix F.
Impact water quality monitoring was conducted at all
designated monitoring stations in the reporting month. Results and graphical presentations of impact
water quality monitoring are presented in Appendix I.
Since marine works for Phase 2 reclamation commenced
on 27 December 2016, impact water quality monitoring resumed on 27 December
2016. In this reporting period, a total
of twelve (12) monitoring events were undertaken in which no Action Level or
Limit Levels of exceedances for impact water quality monitoring was recorded.
Impact dolphin monitoring is required to be conducted
by a qualified dolphin specialist team to evaluate whether there have been any
effects on the dolphins. 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 2.7 summarises the equipment used for the impact dolphin
monitoring.
Table 2.7 Dolphin Monitoring Equipment
Equipment |
Model |
Global Positioning
System (GPS) |
Garmin 18X-PC Geo One Phottix |
Camera |
Nikon D90 300m 2.8D fixed focus Nikon D90 20-300m zoom lens |
Laser Binocular |
Infinitor LRF 1000 |
Marine Binocular |
Bushell 7 x 50 marine binocular with compass and reticules |
Vessel for Monitoring |
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 2.3. The co-ordinates of all transect lines are
shown in Table 2.8 below.
Table 2.8 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 impact dolphin
monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix K.
Dolphin monitoring was carried out on 7, 9, 16 and 21
of February 2017. The dolphin monitoring
schedule for the reporting month is shown in Appendix F.
A total of seven groups of 25 Chinese White Dolphins
sightings were recorded on one survey in January 2017. All seven dolphin sightings were made in NWL,
while none was sighted in NEL. Five of
the seven dolphin sightings were made during on-effort search, while four of
the five on-effort sightings were made on primary lines. None of these dolphin groups was associated
with any operating fishing vessel.
None of the dolphin sightings was made in the
proximity of the TM-CLKL alignment. The distribution of dolphin
sightings during the reporting month is shown in Figure 2.4.
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 February
2017 with the results present in Tables
2.9 and 2.10.
Table 2.9 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: February 7th / 9th |
0.0 |
0.0 |
Set 2: February 16th / 21st |
0.0 |
0.0 |
|
NWL |
Set 1: February 7th / 9th |
0.0 |
0.0 |
Set 2: February 16th / 21st |
9.0 |
42.7 |
Note: Dolphin Encounter Rates
are deduced from the Two Sets of Surveys (Two Surveys in Each Set) in February
2017 in Northeast (NEL) and Northwest Lantau (NWL)
Table 2.10 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 |
5.4 |
3.9 |
25.7 |
18.8 |
Note:
Overall dolphin encounter rates (sightings per 100 km of survey effort) from
all four surveys are conducted in February 2017 on primary lines only as well
as both primary lines and secondary lines in Northeast and Northwest Lantau.
Whilst
one (1) Limit Level exceedance was observed for the quarterly dolphin
monitoring data between December 2016 and February 2017, no unacceptable impact
from the construction activities of the TM-CLKL
Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins was
noticeable from general observations. Due
to monthly variation in dolphin occurrence within the survey area, it would be
more appropriate to draw conclusion on whether any unacceptable impacts on
dolphins have been detected in relation to the construction activities of this
Project in the quarterly EM&A reports, where 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 was in effect during the period of dredging, reclamation or marine sheet
piling works in open waters under
this Contract. Passive Acoustic Monitoring
(PAM) was also implemented for the detection of marine mammal when dredging, reclamation or marine sheet
piling works were
carried out outside the daylight hours under this Contract. No sighting of the Indo-Pacific humpback
dolphin Sousa chinensis
(i.e. Chinese White Dolphin) was recorded in January 2017 during the exclusion
zone monitoring
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 1,
8, 15 and 22 February 2017.
Key observations and recommendations during the site
inspections in this reporting period are summarized in Table 2.11.
Table 2.11 Specific Observations and Recommendations during the Weekly
Site Inspection in this Reporting Month
Inspection Date |
Observations |
Recommendations/ Remarks |
1 February
2017 |
Works
Area - TBM Tunnel
Housekeeping should be maintained. Works
Area - Portion S-C
Chemical waste should be cleared.
The breaker head should be covered with tarpaulin
sheet. |
Works
Area - TBM Tunnel
The Contractor was reminded to cover the cement bag
properly. Works
Area - Portion S-C
The Contractor was reminded to clear the chemical
waste.
The Contractor was reminded to cover the breaker
head with tarpaulin sheet. |
8
February 2017 |
Works
Area - Portion N-B
Water spraying should be applied during dry conditions.
Drip tray and chemical labels should be provided to
the chemicals Works
Area - Portion S-B
Drip tray should be provided to the chemical drum. |
Works
Area - Portion N-B
The Contractor was reminded to apply water spraying
during dry conditions.
The Contractor was reminded to provide drip tray and
chemical labels to the chemicals. Works
Area - Portion S-B
The Contractor was reminded to provide drip tray to
the chemical drum. |
15 February
2017 |
Works
Area –Portion N-C
Muddy substance trapped in the surface channel
should be removed.
Drip tray and chemical labels should be provided to
the chemicals. Works
Area – Portion N-A
Muddy substances and rubbish should be removed.
Sandbags should be provided to prevent leakage of wasteater
to the sea. Works
Area - Portion S-A
Drip tray and chemical labels should be provided to
the chemicals..
Accumulated rubbish bags should be removed. |
Works
Area –Portion N-C
The Contractor was reminded to remove the muddy
substance trapped in the surface channel.
The Contractor was reminded to provide drip tray and
chemical labels to the chemicals. Works
Area – Portion N-A
The Contractor was reminded to remove the muddy
substances and rubbish and provide sandbags to prevent leakage of wastewater
to the sea. Works
Area - Portion S-A
The Contractor was reminded to provide drip tray and
chemical labels to the chemicals.
The Contractor was reminded to remove the
accumulated rubbish bags. |
22
February 2017 |
Works
Area - Portion N-A
Drip tray and chemical labels should be provided to
the chemicals. Works
Area - Portion N-B
Muddy substance and water should be removed. Works
Area - Portion S-A
Chemical labels should be provided to the chemicals.
Cement surface runoff should be avoided. |
Works
Area - Portion N-A
The Contractor was reminded to provide drip tray and
chemical labels to the chemicals. Works
Area - Portion N-B
The Contractor was reminded to remove the muddy
substance and water. Works
Area - Portion S-A
The Contractor was reminded to provide chemical labels
to the chemicals.
The Contractor was reminded to avoid cement surface
runoff. |
The Contractor has rectified all of the observations
as identified during environmental site inspections in the reporting
month.
The Contractor had 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 included
mainly construction wastes (inert and non-inert) and chemical waste. 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 2.12.
Table 2.12 Quantities of Different Waste Generated in the Reporting Month
Month/Year |
Inert Construction Waste (a)
(tonnes) |
Imported Fill (tonnes) |
Inert Construction Waste
Re-used (tonnes) |
Non-inert Construction Waste (b)
(tonnes) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
Marine Sediment (m3) |
|
Category L |
Category M (Mp
& Mf) |
|||||||
February
2017 |
17,367 |
0 |
0 |
340 |
200 |
0 |
0 |
0 |
Notes: |
||||||||
(a) Inert
construction wastes include hard rock and large broken concrete, and
materials disposed as public fill. (b) Non-inert
construction wastes include general refuse disposed at landfill. (c) Recyclable
materials include metals, paper, cardboard, plastics, timber 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 2.13 below.
Table 2.13 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 |
Throughout
the Contract |
HyD |
Application for VEP on 3 March 2015 to supersede
EP-354/2009/C |
Construction
Dust Notification |
363510 |
19
August 2013 |
Throughout
the Contract |
DBJV |
Northern Landfall |
Construction
Dust Notification |
403620 |
10 June 2016 |
Throughout
the Contract |
DBJV |
Southern Landfall |
Chemical
Waste Registration |
5213-422-D2516-01 |
10
September 2013 |
Throughout
the Contract |
DBJV |
Northern Landfall |
Chemical
Waste Registration |
5213-422-D2516-02 |
18 January 2017 |
Throughout
the Contract |
DBJV |
Northern Landfall |
Chemical
Waste Registration |
5213-951-D2591-01 |
25 May 2016 |
Throughout
the Contract |
DBJV |
Southern Landfall |
Construction
Waste Disposal Account |
7018108 |
28
August 2013 |
Throughout
the Contract |
DBJV |
Waste disposal in Contract No. HY/2012/08 |
Construction
Waste Disposal Account |
7021715 |
12 January 2017 |
12 April 2017 |
DBJV |
Vessel disposal |
Waste
Water Discharge License |
WT00017707-2013 |
18
November 2013 |
30
November 2018 |
DBJV |
For site WA18 |
Waste
Water Discharge License |
WT00019248-2014 |
5
June 2014 |
30
June 2019 |
DBJV |
For site Portion N6 and Reclamation Area E |
Waste
Water Discharge License |
WT00025944-2016 |
15 December 2016 |
31 December 2021 |
DBJV |
Southern Landfall |
Marine Dumping Permit |
EP/MD/17-103 |
16 December 2016 |
13 June 2017 |
DBJV |
Northern Landfall |
Marine Dumping Permit |
EP/MD/17-164 |
16 January 2017 |
15 February 2017 |
DBJV |
Northern Landfall |
Construction
Noise Permit |
GW-RW0644-16 |
30
November 2016 |
29
May 2017 |
DBJV |
For
Urmston Road in front of Pillar Point |
Construction
Noise Permit |
GW-RW0666-16 |
13
December 2016 |
12
June 2017 |
DBJV |
For
site WA23A+B |
Construction Noise Permit |
GW-RW0533-16 |
29 September 2016 |
28 March 2017 |
DBJV |
For Portion N6 |
Construction Noise Permit |
GW-RS0860-16 |
25 August 2016 |
24 February 2017 |
DBJV |
For Southern Landfall |
Notes: |
|||||
HyD
= Highways Department DBJV
= Dragages – Bouygues Joint Venture VEP
= Variation of Environmental Permit |
In response to the site audit findings, the
Contractors carried out all corrective actions.
A summary of the Implementation Schedule of
Environmental Mitigation Measures (EMIS) is presented in Appendix C.
The necessary mitigation measures relevant to this Contract were implemented
properly.
No Action Level or Limit Level exceedances were
recorded in the air quality monitoring of this reporting month.
Cumulative statistics are provided in Appendix L.
The Environmental Complaint Handling Procedure is
provided in Figure 2.5.
One
(1) environmental complaint case regarding sewage discharge at the east of the artificial
island of the Hong Kong – Zhuhai–Macao Bridge was referred by IEC on 16 January 2017.
The complaint investigation report is provided in Appendix L.
One
(1) environmental complaint case regarding muddy water discharge at the site area
near Ho Yeung Street was referred by EPD on 14 February 2017. The
environmental complaint case on 14 February 2017 is under investigation. The complete investigation
findings will be provided in the Forty-first
Monthly EM&A Report.
No notification of summons and prosecution were
received in the reporting period.
Statistics on complaints, notifications of summons and
successful prosecutions are summarized in Appendix L.
As informed by the Contractor, the major works for the
Project in March 2017 are summarized in Table
3.1.
Table 3.1 Construction Works to Be Undertaken in the Coming Month
Works to be undertaken |
Marine-based
Works |
·
Construction of Vertical Seawall at Portion N-A; and ·
Band drain and Filling works at Portion N-A Land-based
Works ·
Box Culvert Extension at Works Area – Portion N-A; ·
Construction of North Ventilation Building – Portion
N-C; ·
Construction of Cross Passage Tympanum – TBM tunnel; ·
Cross Passage Lining Installation – TBM Tunnel; ·
Excavation of Sub-sea Tunnel – TBM tunnel; ·
Corbel Construction – TBM Tunnel; ·
Sub-sea Tunnel Gallery Installation – TBM tunnel; ·
Jet Grouting, CSM Ground Treatment and Diaphragm
Wall Construction – Portion S-A |
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of March 2017 are
mainly associated with dust, marine water quality, marine ecology and waste
management issues.
The tentative schedule for environmental monitoring in
March 2017 is provided in Appendix F.
This Fortieth Monthly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 1 to
28 February 2017, in accordance with the Updated EM&A Manual and the
requirements of EP-354/2009/D.
Air quality (including 1-hour TSP and 24-hour TSP),
marine water quality and dolphin monitoring were carried out in this reporting
month. No
Action Level or Limit Level exceedances were recorded in the air quality
monitoring of this reporting month.
No Action Level or Limit Level exceedances were
recorded in the water quality monitoring of this reporting month.
A total of seven groups of 25 Chinese White Dolphins
sightings were recorded on one survey in January 2017. All seven dolphin sightings were made in NWL,
while none was sighted in NEL. Five of
the seven dolphin sightings were made during on-effort search, while four of
the five on-effort sightings were made on primary lines. None of these dolphin groups was associated
with any operating fishing vessel.
Environmental site inspection was carried out four (4)
times in February 2017. Remedial actions
recommended for the deficiencies identified during the site audits were
properly implemented by the Contractor.
No non-compliance event was recorded during the
reporting period.
One
(1) environmental complaint case regarding muddy water discharge at the site
area near Ho Yeung Street was referred by EPD on 14 February 2017. The
environmental complaint case on 14 February 2017 is under investigation. The complete investigation
findings will be provided in the Forty-first
Monthly EM&A Report.
No summons/ prosecution was
received during the reporting period.
The marine travel route records of January and
February are still under preparation.
Reporting of any non-compliance of marine travel route during January,
February and March will be provided in the Forty-first
Monthly EM&A Report.
The ET will keep track on the construction works to
confirm compliance of environmental requirements and the proper implementation
of all necessary mitigation measures.