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 Quarter
3.2
Key
Issues for the Coming Quarter
3.3
Monitoring
Schedule for the Coming Quarter
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 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 Contract commenced on 1 November 2013 and will
tentatively be completed in early 2020. 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
Twenty-fifth Quarterly
EM&A report presenting the EM&A works carried out during the period
from 1 December 2019 to 29 February 2020 for the Contract No. HY/2012/08 Northern
Connection Sub-sea Tunnel Section (the “Contract”) in accordance with the Updated EM&A
Manual of the TM-CLK Link
Project. As informed by the Contractor, the major activities in the
reporting quarter included:
Land-based
Works
·
Construction of Thermal barrier – TBM tunnel;
·
Construction of Walkway Corbel & Cover – TBM Tunnel;
·
Road & Drainage works – Portion N-A;
·
C&C Tunnel RC structure – Portion S-A;
·
Roofing System Installation – Portion S-A;
·
Road & Drainage works – Portion S-B & S-C
Marine-based
Works
·
Seawall Modification Works – Portion S-B
A summary of monitoring
and audit activities conducted in the reporting period is listed
below:
24-hour TSP
Monitoring
30 sessions
1-hour TSP
Monitoring
30 sessions
Water Quality
Monitoring ([1])
12 sessions
Impact Dolphin
Monitoring
6 sessions
Joint
Environmental Site Inspection ([2])
9 sessions
Implementation
of Marine Mammal Exclusion Zone
Daily marine mammal exclusion zone was conducted in
December 2019 during the period of silt curtain installation in open waters
under this Contract. No sighting of the Indo-Pacific humpback dolphin
(i.e. Chinese White Dolphin) was recorded during the exclusion zone monitoring.
No marine works were undertaken since 30
December 2019, therefore, daily 250 m marine mammal exclusion zone monitoring
was not undertaken since 30 December 2019.
Summary of
Breaches of Action/Limit Levels
Breaches of
Action and Limit Levels for Air Quality
Four (4) Action
Level and One (1) Limit Level exceedances of 1-hour TSP were recorded in this
reporting period. Investigation reports are provided in Appendix J.
Breaches of
Action and Limit Levels for Water Quality
No
Action Level and Limit Level exceedance was recorded in the water quality
monitoring.
Dolphin
Monitoring
Whilst one (1) Limit Level exceedance was observed for
the quarterly dolphin monitoring data between December 2019 and February 2020, 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 during the
dolphin monitoring in this reporting quarter.
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.
No environmental complaint was received in this reporting
period.
No
environmental summons was received in this reporting period.
Reporting
Change
Seawall Modification Works has been
completed on 30 December 2019. Water Quality Monitoring was suspended
since 30 December 2019. No marine works were carried out in the reporting
month.
Upcoming
Works for the Next Reporting Period
Works to be
undertaken in the coming quarterly period include the following:
Land-based
Works
·
Construction of Thermal barrier – TBM tunnel;
·
Construction of Walkway Corbel & Cover – TBM Tunnel;
·
Road & Drainage works – Portion N-A;
·
C&C Tunnel RC structure – Portion S-A;
·
Roofing System Installation – Portion S-A;
·
D-wall cut – Portion S-A;
·
Tower Crane Removal – Portion S-A;
·
Removal of Access Tower – Portion S-B;
·
Gantry Crane Removal – Portion S-B;
·
Road & Drainage works – Portion S-B & S-C
Future
Key Issues
Potential environmental impacts arising from the above
upcoming construction activities in the coming quarterly period are expected to
be mainly associated with dust, 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 (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.
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)
in accordance with Environmental Permit No. EP-354/2009/A.
Ramboll 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 24/SD |
Ken T.M. Cheng |
2762 4062 |
3188 6614 |
SOR (AECOM Asia Company Limited) |
Chief Resident Engineer |
Roger Man |
2293 6388 |
2293 6300 |
ENPO / IEC (Ramboll Hong Kong Ltd.) |
ENPO Leader |
Y.H. Hui |
3465 2850 |
3465 2899 |
IEC |
Dr. F.C. Tsang |
3465 2851 |
3465 2899 |
|
Contractor (Dragages
– Bouygues Joint Venture) |
Deputy Environmental Manager |
Bryan Lee |
2293 7323 |
2293 7499 |
|
24-hour hotline |
|
2293 7330 |
|
ET (ERM-HK) |
ET Leader |
Jasmine Ng |
2271 3311 |
2723 5660 |
The
general layout plan of the site showing the detailed works areas is shown in Figure 1.2. The
Environmental Sensitive Receivers in the vicinity of the Contract are shown in Figure 1.3.
Table
1.2 Summary of Construction
Activities Undertaken during the Reporting Period
Construction Activities Undertaken |
Land-based Works |
·
Construction of Thermal barrier – TBM tunnel; ·
Construction of Walkway Corbel & Cover – TBM Tunnel; ·
Road & Drainage works – Portion N-A; ·
C&C Tunnel RC structure – Portion S-A; ·
Roofing System Installation – Portion S-A; ·
Road & Drainage works – Portion S-B & S-C |
Marine-based
Works |
·
Seawall Modification Works – Portion S-B |
Figure
1.2 Locations of Construction
Activities – December 2019 to February 2020
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
As
per the requirements under Condition 2.4 of EP-354/2009/D, the
Enhanced TSP Monitoring Plan has been prepared under Contract No. HY/2012/08.
Details of the monitoring plan are presented in the Enhanced TSP Monitoring
Plan ([3]).
In
accordance with the Updated EM&A Manual and the Enhanced TSP Monitoring
Plan, impact 1-hour TSP monitoring was conducted three (3) times in every six
(6) days and impact 24-hour TSP monitoring was carried out once in 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 in
the reporting quarter 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
anemometer 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.
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 |
1, 4, 7, 10, 13, 16, 19, 22, 25, 28 and 31 December 2019 |
Tuen Mun Fireboat Station |
Office |
TSP monitoring Ÿ 1-hour Total
Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 6
days Ÿ 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) Ÿ 1-hour Total
Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 3
days Ÿ 24-hour Total
Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in
every 3 days |
ASR5 |
3, 6, 9, 12, 15, 18, 21, 24 and 30 January 2020 |
Pillar Point Fire Station |
Office |
|
AQMS1 |
2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 February 2020 |
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 H.
The
schedules for air quality monitoring in the reporting quarter are provided in Appendix E.
Impact
air quality monitoring was conducted at all designated monitoring stations in
the reporting period under favourable weather conditions. The major dust
sources in the reporting period include construction activities under the
Contract as well as nearby traffic emissions.
The
monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables
2.3 and 2.4, respectively. Monitoring results are presented
graphically in Appendix
G and detailed impact air quality monitoring data were reported in the Seventy-fourth to Seventy-sixth Monthly EM&A Reports.
Table
2.3 Summary of 1-hour TSP Monitoring Results in this
Reporting Period
Month/Year |
Station |
Average
(µg/m3) |
Range
(µg/m3) |
Action
Level (µg/m3) |
Limit
Level (µg/m3) |
December 2019 to February 2020 |
ASR 1 |
153 |
37 -
747 |
331 |
500 |
ASR 5 |
175 |
69 -
380 |
340 |
500 |
|
AQMS1 |
121 |
26 -
303 |
335 |
500 |
|
ASR6 |
116 |
34 -
276 |
338 |
500 |
|
ASR10 |
88 |
28 -
407 |
337 |
500 |
Table
2.4 Summary of 24-hour TSP
Monitoring Results in this Reporting Period
Month/Year |
Station |
Average
(µg/m3) |
Range
(µg/m3) |
Action
Level (µg/m3) |
Limit
Level (µg/m3) |
December 2019 to February 2020 |
ASR 1 |
104 |
22 -
168 |
213 |
260 |
ASR 5 |
110 |
49 -
190 |
238 |
260 |
|
AQMS1 |
75 |
30 -
131 |
213 |
260 |
|
ASR6 |
83 |
36 -
149 |
238 |
260 |
|
ASR10 |
59 |
30 -
103 |
214 |
260 |
Four
(4) Action Level and One (1) Limit Level exceedances of 1-hour TSP Monitoring
were recorded in this reporting period. Investigation reports are
provided in Appendix J.
Summary of Exceedances for Air Quality Impact Monitoring in this
Reporting Quarter is detailed in Table 2.15.
The
Seawall Modification Works has commenced since 12 August 2019 and completed on
30 December 2019. Water quality monitoring was carried out in December
2019 and suspended since 30 December 2019.
In
accordance with the approved Environmental Review Report dated 21 March 2018
for the Change in Design of Vertical Seawall to Sloping Seawall on Southern
Landfall, Updated Impact water quality monitoring programme and water quality
monitoring stations IS17, SR7 and IS(Mf)11 specified under the EM&A Manual
for HZMB HKBCF project will be adopted (Figure 2.2; Table 2.5).
Results
of water quality monitoring were adopted from the published EM&A data of
Contract No. HY/2012/07 Tuen Mun-Chek Lap Kok Link – Southern Connection
Viaduct Section.
The
Action and Limit Levels of the water quality monitoring were adopted from the
EM&A Manual for HZMB HKBCF project. The Action and Limit Levels are
provided in Appendix D.
Table
2.5 Locations of Water Quality
Monitoring Stations and the Corresponding Monitoring Requirements
Station ID |
Type |
Coordinates |
*Parameters,
unit |
Depth |
Frequency |
|
|
|
Easting |
Northing |
|
|
|
IS(Mf)11 |
Impact
Station (Close to HKBCF construction site) |
813562 |
820716 |
Ÿ Temperature(°C) Ÿ pH(pH unit) Ÿ Turbidity (NTU) Ÿ Water depth (m) Ÿ Salinity (ppt) Ÿ 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. |
IS17 |
Impact Station (Close to HKBCF
construction site) |
814539 |
820391 |
|||
SR7 |
Sensitive receivers (Tai Mo Do) |
814293 |
821431 |
|||
IS(Mf)9 |
Impact Station (Close to HKBCF
construction site) |
813273 |
818850 |
|
|
|
IS(Mf)16 |
Impact Station (Close to HKBCF
construction site) |
814328 |
819497 |
|
|
|
IS8(N) |
Impact Station (Close to HKBCF
construction site) |
814413 |
818570 |
|
|
|
SR4(N2) |
Sensitive receiver (Tai Ho Inlet) |
814688 |
817996 |
|
|
|
SR4a |
Sensitive receiver |
815247 |
818067 |
|
|
|
CS(Mf)3(N) |
Control Station |
808814 |
822355 |
|
|
|
CS(Mf)5 |
Control Station |
817990 |
821129 |
|
|
|
*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. Water Quality Monitoring
Station CS(Mf)3 was relocated to CS(Mf)3(N) since 2 May 2017. Water Quality Monitoring
Station SR4 was relocated to SR4(N) since 2 March 2018. Water Quality Monitoring
Station SR4(N) was relocated to SR4(N2) since 12 June 2019 Water
Quality Monitoring Station IS8 was relocated to IS8(N) since 12 June 2019. |
Table
2.6 summarizes the
equipment used in the impact water quality monitoring programme.
Table
2.6 Water Quality Monitoring
Equipment
Equipment |
Model |
Multi-Parameters |
YSI ProDss 00019CB2 |
Multi-Parameters |
YSI ProDss 0001C6A7 |
Multi-Parameters |
YSI ProDss 16H104233 |
Multi-Parameters Multi-Parameters |
YSI ProDss 17H105557 YSI ProDss 16H104234 |
Positioning Equipment |
Furuno
GP-170 |
The
Action and Limit levels of water quality impact monitoring are shown in Appendix D. The
Event and Action plan is presented in Appendix I.
The
schedule for water quality monitoring in the reporting quarter is provided in Appendix E.
Impact
water quality monitoring was conducted at all designated monitoring stations in
the reporting quarter. No Action Level and Limit Level exceedance was
recorded in the water quality monitoring. Results and graphical
presentations of impact water quality monitoring are presented in Appendix G.
Detailed water quality monitoring data were reported in the Seventy-fourth
Monthly EM&A Report.
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, Contract No. HY/2012/08 has taken over the responsibility
for implementation of dolphin monitoring from HZMB HKLR Contract No. HY/2011/03
since October 2019.
Table
2.7 summarizes the
equipment used for the impact dolphin monitoring.
Table
2.7 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
2.3. 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 |
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 I.
The
dolphin monitoring schedules for the reporting period are shown in Appendix E.
A
total of 781.78 km of survey effort was conducted, with 100% of the total survey
effort being conducted under favourable weather conditions (ie Beaufort Sea
State 3 or below with good visibility) in this reporting quarter. Amongst
the two areas, 287.40 km and 494.38 km of survey effort were conducted from NEL
and NWL survey areas, respectively. The total survey effort conducted on
primary and secondary lines were 570.93 km and 210.85 km, respectively.
The survey efforts are summarized in Appendix H.
A total of 7
groups of 29 Chinese White Dolphins
sightings were recorded during the six sets of surveys in this reporting
quarter. All seven dolphin sightings were made during on-effort
search and were made on primary lines. During this reporting quarter, all
dolphin groups were sighted in NWL, while no dolphin was sighted in NEL.
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
with good visibility) in the reporting quarter with the results and comparison
with baseline 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 (3 & 10 Dec 2019) |
0.00 |
0.00 |
Set 2 (12 & 16 Dec 2019) |
0.00 |
0.00 |
|
Set 3 (2 & 6 Jan 2020) |
0.00 |
0.00 |
|
Set 4 (9 & 16 Jan 2020) |
0.00 |
0.00 |
|
Set 5 (10 & 18 Feb 2020) |
0.00 |
0.00 |
|
Set 6 (20 & 24 Feb 2020) |
0.00 |
0.00 |
|
NWL |
Set 1 (3 & 10 Dec 2019) |
0.00 |
0.00 |
Set 2 (12 & 16 Dec 2019) |
5.03 |
21.81 |
|
Set 3 (2 & 6 Jan 2020) |
0.00 |
0.00 |
|
Set 4 (9 & 16 Jan 2020) |
0.00 |
0.00 |
|
Set 5 (10 & 18 Feb 2020) |
3.35 |
5.03 |
|
Set 6 (20 & 24 Feb 2020) |
3.39 |
22.05 |
Note: Dolphin
Encounter Rates are deduced from the Two Sets of Surveys (Two Surveys in Each
Set) in the reporting quarter in Northeast (NEL) and Northwest Lantau
(NWL)
Table
2.10 Quarterly 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) |
||
December 2019
– February
2020 |
September
– November 2011 |
December
2019 – February 2020 |
September
– November 2011 |
|
Northeast
Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest
Lantau |
1.96 ± 2.23 |
9.85 ± 5.85 |
8.15 ± 10.85 |
44.66 ± 29.85 |
Note: Encounter rates deduced
from the baseline monitoring period have been recalculated based only on survey
effort and on-effort sighting data made along the primary transect lines under
favourable conditions.
Group size of Chinese
White Dolphins ranged from 1 – 11 individuals per group in North Lantau region
during December 2019 to February 2020. The average dolphin group sizes
from these three months were compared with the ones deduced from the baseline
period in September to November 2011, as shown in Table 2.11.
Table
2.11 Average Dolphin Group Size
|
Average
Dolphin Group Size |
|
December
2019 – February 2020 |
September
– November 2011 |
|
Overall |
4.14 ± 4.41 (n
= 7) |
3.72 ± 3.13 (n
= 66) |
Northeast
Lantau |
--- |
|
Northwest
Lantau |
4.14 ± 4.41 (n
= 7) |
3.92 ± 3.40 (n
= 49) |
Whilst
one limit level exceedance was observed for the quarterly dolphin monitoring data
between December 2019 and February 2020, no unacceptable impact from the
construction activities of this Contract was recorded from the general
observations.
Although
the dolphins infrequently occurred along the alignment of TM-CLKL Northern Connection
Sub-Sea Tunnel Section in the past and during the baseline monitoring period,
it is apparent that dolphin usage has been significantly reduced in NEL.
It
is critical to monitor the dolphin usage in North Lantau region in the upcoming
quarters to determine whether the dolphins are continuously affected by the
various construction activities in relation to the HZMB-related works, and
whether suitable mitigation measure can be applied to revert the situation.
Daily marine mammal exclusion zone was conducted in
December 2019 during the period of silt curtain installation in open waters
under this Contract. No sighting of the Indo-Pacific humpback dolphin
(i.e. Chinese White Dolphin) was recorded during the exclusion zone monitoring.
No
marine works were undertaken since 30 December 2019, therefore, daily 250 m
marine mammal exclusion zone monitoring was not undertaken since 30 December
2019.
Site
inspections were carried out on a weekly basis to monitor the implementation of
proper environmental pollution control and mitigation measures under the
Contract. Nine (9) site inspections were carried out in the reporting
quarter on 4, 11, 18 and 27 December 2019; 2, 8, 15 and 22 January 2020 and 26
February 2020.
Site
inspection on 29 January, 5, 12 and 19 February 2020 were cancelled due to site
closure during outbreak of novel coronavirus (COVID-19)
caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
Key
observations during the site inspections in this reporting period are
summarized in Table 2.12.
Table
2.12 Specific Observations and
Recommendations during the Weekly Site Inspection in this Reporting Period
Inspection Date |
Environmental Observations |
Recommendations/ Remarks |
|
4 December 2019 |
Works Area – Portion N-C Ÿ
Food waste should be removed. Works Area – Portion N-B Ÿ
Drip tray should be provided during car repairing. Works Area – Portion S-A Ÿ
Drip tray should be provided for the chemical container. Reminder from the SOR Works Area - Portion S-B Ÿ
Stagnant water should be cleared. |
Works Area – Portion N-C Ÿ
The Contractor was reminded to remove the food waste. Works Area – Portion N-B Ÿ
The Contractor was reminded to provide drip tray during car repairing. Works Area – Portion S-A Ÿ
The Contractor was reminded to provideip tray for the chemical container. Reminder from the SOR Works Area - Portion S-B Ÿ
The Contractor was reminded to clear the stagnant water. |
|
11 December 2019 |
Works Area – TBM tunnel Ÿ
Chemical drums and cement bags should be removed. Works Area – Portion S-B Ÿ
NRMM label should be displayed on the excavator. |
Works Area – TBM tunnel Ÿ
The Contractor was reminded to remove the chemical drums and cement bags. Works Area – Portion S-B Ÿ
The Contractor was reminded to display NRMM label on the excavator. |
|
18 December 2019 |
Works Area – Portion S-B Ÿ
Cover should be provided between sand barges during sand crab action. Works Area – Portion S-A Ÿ
Drip tray for the chemicals should be provided. Ÿ
Domestic waste should be removed and water barrier should be repaired. Works Area – Portion N-A Ÿ
Cement bags should be covered by tarpaulin sheets. Ÿ
Drip tray should be provided for the generator. Reminder from the SOR Works Area – Portion S-A Ÿ
Stagnant water should be cleared. |
Works Area – Portion S-B Ÿ
The Contractor was reminded to provide cover between sand barges during sand
crab action. Works Area – Portion S-A Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Ÿ
The Contractor was reminded to remove the domestic waste and repair the water
barrier. Works Area – Portion N-A Ÿ
The Contractor was reminded to cover the cement bags by tarpaulin sheets. Ÿ
The Contractor was reminded to provide drip tray for the generator. Reminder from the SOR Works Area – Portion S-A Ÿ
The Contractor was reminded to clear the stagnant water. |
|
27 December 2019 |
Works Area – TBM tunnel Ÿ
Water spraying should be applied on the haul raod. Ÿ
Drip tray for the chemicals should be provided. Works Area – Portion S-A Ÿ
Drip tray for the chemicals should be provided. |
Works Area – TBM tunnel Ÿ
The Contractor was reminded to apply water spraying on the haul road. Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Works Area – Portion S-A Ÿ
The Contractor was reminded to provide drip tray for the chemicals. |
|
2 January 2020 |
Works Area – Portion S-A Ÿ
Waste on site should be removed. Reminder from the SOR Works Area - Portion S-A Ÿ
Broken water barrier should be removed. Ÿ
Lid should be provided for the water barrier. |
Works Area – Portion S-A Ÿ
The Contractor was reminded to remove waste on site. Reminder from the SOR Works Area - Portion S-A Ÿ
The Contractor was reminded to remove the broken water barrier. Ÿ
The Contractor was reminded to provide the lid for the water barrier.. |
|
8 January 2020 |
Works Area – TBM tunnel Ÿ
Food wate should be removed. Ÿ
Faded NRMM label should be replaced. Works Area – Portion S-A Ÿ
Drip tray for the chemicals should be provided Works Area – Portion S-B Ÿ
Drip tray for the chemicals should be provided. Reminder from the SOR Works Area - Portion S-B Ÿ
Stagnant water should be removed. |
Works Area – TBM tunnel Ÿ
The Contractor was reminded to remove the food waste. Ÿ
The Contractor was reminded to replace the faded NRMM label.. Works Area – Portion S-A Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Works Area – Portion S-B Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Reminder from the SOR Works Area - Portion S-B Ÿ
Stagnant water should be removed. |
|
15 January 2020 |
Works Area – Portion N-C Ÿ
Water spraying should applied at main haul road. Works Area – Portion S-A Ÿ
Drip tray for the chemicals should be provided. Ÿ
Food waste should be cleared. |
Works Area – Portion N-C Ÿ
The Contractor was reminded to apply water spraying at main haul road. Works Area – Portion S-A Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Ÿ
The Contractor was reminded to clear the food waste. |
|
22 January 2020 |
Works Area – TBM tunnel Ÿ
Drip tray should be provided for the chemicals. Ÿ
Drip tray should be provided for the chemicals. Works Area – Portion S-A Ÿ
Drip tray for the chemicals should be provided. Reminder from the SOR Works Area - Portion S-A Stagnant water should be
removed. |
Works Area – TBM tunnel Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Works Area – Portion S-A Ÿ
The Contractor was reminded to provide drip tray for the chemicals. Reminder from the SOR Works Area - Portion S-A Stagnant water should be
removed. |
|
26 February 2020 |
Works Area – near South
Ventilation Building Ÿ
Food waste should be removed. |
Works Area – near South
Ventilation Building Ÿ
The Contractor was reminded to remove food waste at work area. |
|
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 include mainly construction wastes
(inert and non-inert). Reference has been made to the waste flow table prepared
by the Contractor (Appendix
K). The quantities of different types of wastes are summarized in
Table 2.13.
Table
2.13 Quantities of Different Waste
Generated in the Reporting Period
Month/Year |
Inert
Construction Waste (a) (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) |
Mixed (L+M) |
|||||||||
December 2019 |
4,216 |
0 |
441 |
0 |
0 |
0 |
0 |
0 |
|||
January 2020 |
174,690 |
0 |
2,540 |
0 |
0 |
0 |
0 |
0 |
|||
February 2020 |
1,455 |
0 |
349 (d) |
0 |
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 and
others. (d)
Updated figure and waste flow table is presented in this quarterly report. |
|
||||||||||
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 2.14 below.
Table
2.14 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-D2516-02 |
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 |
4 October 2019 |
14 January 2020 |
DBJV |
Vessel Disposal |
Waste Water Discharge
License |
WT00031435-2018 |
2 August 2018 |
31 August 2023 |
DBJV |
Southern Landfall |
Waste Water Discharge
License |
WT00034060-2019 |
25 July 2019 |
30 June 2024 |
DBJV |
Northern Landfall (4 Discharge Point) |
Construction Noise Permit |
GW-RW0406-18 |
17 October 2019 |
15 April 2020 |
DBJV |
Urmston Road in front
of Pillar Point |
Construction Noise Permit |
GW-RW0497-19 |
17 October 2019 |
15 April 2020 |
DBJV |
Northern Landfall |
Construction Noise Permit |
GW-RW0374-19 |
20 August 2019 |
19 February 2020 |
DBJV |
WA23 @ Tsing Yi |
Construction Noise Permit |
GW-RS0766-19 |
2 September 2019 |
25 February 2020 |
DBJV |
Southern Landfall |
Construction Noise Permit |
GW-RS1137-19 |
26 December 2019 |
5 June 2020 |
DBJV |
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.
For air quality impact monitoring, a total of thirty
monitoring events for both 1-hour TSP and 24-hour TSP were undertaken in which
Four (4) Action Level and One (1) Limit Level exceedances of 1-hour TSP were recorded (Table
2.15).
Table
2.15 Summary of
Exceedances for Air Quality Impact Monitoring in this Reporting Quarter
Station |
Exceedance Level |
Date of Exceedances |
Number of Exceedances |
||
1-hr TSP |
24-hr TSP |
1-hr TSP |
24-hr TSP |
||
AQMS1 |
Action Level |
- |
- |
- |
- |
Limit Level |
- |
- |
- |
- |
|
ASR1 |
Action Level |
2019-12-04 |
- |
1 |
- |
Limit Level |
2019-12-01 |
- |
1 |
- |
|
ASR5 |
Action Level |
2019-12-01 2019-12-04 |
- |
2 |
- |
Limit Level |
|
- |
- |
- |
|
ASR6 |
Action Level |
- |
- |
- |
- |
Limit Level |
- |
- |
- |
- |
|
ASR10 |
Action Level |
2019-12-01 |
- |
1 |
- |
Limit Level |
- |
- |
- |
- |
|
Total number of Action
level Exceedances: |
4 |
0 |
|||
Total number of Limit
level Exceedances: |
1 |
0 |
For
marine water quality impact monitoring, no Action and Limit level exceedance
was recorded.
Table
2.16 Summary of Exceedances for Marine
Water Quality Impact Monitoring in this Reporting Quarter
Station |
Exceedance Level (a) |
DO (Surface and Middle) |
DO (Bottom) |
Turbidity
(depth-averaged) |
SS (depth-averaged) |
||||
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
Mid-ebb |
Mid-flood |
||
IS17 |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
IS(Mf)11 |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
SR7 |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
CS(Mf)5 |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
CS(Mf)3(N) |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
IS(Mf)16 |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
SR4a |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
SR4(N2) |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
IS8(N) |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
IS(Mf)9 |
AL |
- |
- |
- |
- |
- |
- |
- |
- |
LL |
- |
- |
- |
- |
- |
- |
- |
- |
|
Total AL Exceedances: |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total LL Exceedances: |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Notes: |
|||||||||
(a) AL = Action Level; LL = Limit Level |
One
(1) Limit Level exceedance was observed for the quarterly dolphin monitoring
data between December 2019 and February 2020, whilst 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.
Cumulative
statistics are provided in Appendix J.
The
Environmental Complaint Handling Procedure is provided in Figure 2.4.
No environmental complaint was
received in this reporting period.
No
environmental summons was received in this reporting period.
Statistics
on complaints, notifications of summons and successful prosecutions are
summarized in Appendix J.
As
informed by the Contractor, the major works for the Contract in the coming
quarter are summarized in Table 3.1.
Table
3.1 Construction Works to Be
Undertaken in the Coming Quarter
Works to be undertaken |
Land-based
Works ·
Construction of Thermal barrier – TBM tunnel; ·
Construction of Walkway Corbel & Cover – TBM Tunnel; ·
Road & Drainage works – Portion N-A; ·
C&C Tunnel RC structure – Portion S-A; ·
Roofing System Installation – Portion S-A; ·
D-wall cut – Portion S-A; ·
Tower Crane Removal – Portion S-A; ·
Removal of Access Tower – Portion S-B; ·
Gantry Crane Removal – Portion S-B; ·
Road & Drainage works – Portion S-B & S-C |
Potential environmental impacts
arising from the above upcoming construction activities in the coming quarterly
period are expected to be mainly associated with dust, marine ecology and waste
management issues.
Impact
monitoring for air quality and marine ecology (include dolphin monitoring) are
scheduled to continue for the next reporting period.
This
Twenty-fifth Quarterly
EM&A Report presents the findings of the EM&A activities undertaken
during the period from 1 December 2019 to 29 February 2020, 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), water quality and dolphin monitoring
were carried out in the reporting period. Four (4) Action level and one (1) Limit Level exceedances
of 1-hour TSP were recorded in this reporting period.
For
marine water quality impact monitoring, no Action and Limit level exceedance
was recorded.
A total of 7
groups of 29 Chinese White Dolphins sightings
were recorded during the six sets of surveys in this reporting quarter.
All seven dolphin sightings were made during on-effort search and were made on
primary lines. Whilst
one limit level exceedance was observed for the quarterly dolphin monitoring
data between December 2019 to February 2020, no unacceptable impact from the
construction activities of this Contract was recorded from the general
observations. Although the dolphins infrequently occurred
along the alignment of TM-CLKL Northern Connection Sub-Sea Tunnel Section in
the past and during the baseline monitoring period, it is apparent that dolphin
usage has been significantly reduced in NEL. It is critical to monitor
the dolphin usage in North Lantau region in the upcoming quarters, to determine
whether the dolphins are continuously affected by the various construction
activities in relation to the construction works of the Contract, and whether
suitable mitigation measure can be applied to improve the situation.
Nine
weekly environmental site inspections were carried out in the reporting
period. Recommendations on remedial actions provided for the deficiencies
identified during the site audits were properly implemented by the Contractor.
No non-compliance event was recorded during the reporting period.
The
monitoring programme has been reviewed and was considered as adequate to cater
for the nature of works in progress. Change to the
monitoring programme was thus not recommended at this stage. The
monitoring programme will be evaluated as appropriate in the 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.
([1]) Seawall
Modification Works has been completed
on 30 December 2019. No marine works were carried out since 30 December
2019. Water Quality Monitoring was suspended since 30 December 2019.
([2]) Site
inspection on 29 January, 5, 12 and 19 February 2020 were cancelled due to site
closure during outbreak of novel coronavirus (COVID-19)
caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).