table of Contents
Executive Summary
1.1 Background
1.2 Scope
of Report
1.3 Organization
Structure
1.4 Summary
of Construction Works
2.1 Air
quality
2.2 Dolphin
Monitoring
2.3 EM&A
Site Inspection
2.4 Waste
Management Status
2.5 Environmental
Licenses and Permits
2.6 Implementation
Status of Environmental Mitigation Measures
2.7 Summary
of Exceedances of the Environmental Quality Performance Limit
2.8 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 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 Fifteen
Quarterly EM&A report presenting the EM&A works carried out during the
period from 1 June 2017 to 31 August 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, the
major activities in the reporting quarter 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; and
·
Bulk Excavation – Portion S-A.
There was no
dredging, reclamation or marine sheet piling works in open waters during this
reporting period.
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 31
sessions
Impact Dolphin
Monitoring 6 sessions
Joint
Environmental Site Inspection 13 sessions
Implementation of Marine Mammal Exclusion Zone
There was no dredging, reclamation or marine sheet piling works in
open waters during this reporting period. Thus, Passive Acoustic
Monitoring (PAM) and the day-time monitoring of Dolphin Exclusion Zone (DEZ) by
dolphin observers were not in effect during the reporting period.
Summary of
Breaches of Action/Limit Levels
Breaches of Action and Limit Levels for Air Quality
Four (4) Action
Level exceedances and zero (0) Limit Level exceedance of 1-hour TSP were
recorded in the air quality monitoring of this reporting period. Investigation
report is provided in Appendix
I.
Dolphin Monitoring
Whilst one (1) Limit Level exceedance
was observed for the quarterly dolphin monitoring data between June and August 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 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
There was no
reporting change required in the reporting period.
Upcoming Works
for the Next Reporting Period
Works to be
undertaken in the coming quarterly period include the following:
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; and
·
Bulk Excavation – Portion S-A.
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 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 22/HZMB |
Chow Man Lung, Andrew |
2762 4110 |
2762 4110 |
SOR (AECOM Asia Company Limited) |
Chief Resident Engineer |
Roger Man 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 Officer |
Bryan Lee |
2293 7323 |
2293 7499 |
|
24-hour complaint hotline |
Rachel Lam |
2293 7330 |
|
ET (ERM-HK) |
ET Leader |
Jovy Tam |
2271 3113 |
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 Project are shown in Figure 1.3.
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; and ·
Bulk Excavation – Portion S-A. |
Figure 1.2 Locations of Construction Activities – June 2017 to August 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
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 ([1]).
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 |
2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 June 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 |
2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 July 2017 |
Pillar Point Fire Station |
Office |
|
AQMS1 |
1, 4, 7, 10, 13, 16, 19, 22, 25, 28 and 31 August
2017 |
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.
24-hour TSP monitoring
on 22 August 2017 was cancelled due to adverse weather.
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 F and
detailed impact air quality monitoring data were reported in the Forty-fourth to Forty-sixth Monthly EM&A Report.
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) |
June 2017 to August 2017 |
ASR 1 |
90 |
33 - 360 |
331 |
500 |
ASR 5 |
123 |
27 - 370 |
340 |
500 |
|
AQMS1 |
69 |
10 - 224 |
335 |
500 |
|
ASR6 |
96 |
30 - 401 |
338 |
500 |
|
ASR10 |
66 |
23 - 475 |
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) |
June 2017 to August 2017 |
ASR 1 |
65 |
39 - 155 |
213 |
260 |
ASR 5 |
61 |
30 - 163 |
238 |
260 |
|
AQMS1 |
43 |
24 - 77 |
213 |
260 |
|
ASR6 |
56 |
38 - 114 |
238 |
260 |
|
ASR10 |
43 |
21 - 99 |
214 |
260 |
Four (4) Action
Level exceedances and zero (0) Limit Level exceedance of 1-hour TSP were
recorded in the air quality monitoring of this reporting period. No Action or Limit Level exceedances for
24-hr TSP were recorded. Summary of
Exceedances for Air Quality Impact Monitoring in this Reporting Quarter is
detailed in Table 2.13.
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 2.5 summarizes the equipment used for the impact dolphin
monitoring.
Table 2.5 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 2.2. The co-ordinates of all transect lines are
shown in Table 2.6 below.
Table 2.6a Impact Dolphin Monitoring Line Transect Co-ordinates (Up to
July 2017)
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 |
|
|
|
|
Table 2.6b Impact Dolphin Monitoring Line Transect
Co-ordinates (Since August 2017)
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 H.
The dolphin monitoring
schedules for the reporting period are shown in Appendix E.
A total of 793.06
km of survey effort was conducted, with 97.8% 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, 290.58 km and 502.48
km of survey effort were conducted from NEL and NWL survey areas,
respectively. The total survey effort
conducted on primary and secondary lines were 575.14 km and 217.92 km,
respectively. The survey efforts are
summarized in Appendix G.
A total of 12 groups of 34 Chinese White Dolphins sightings were recorded
during the six sets of surveys in this
reporting quarter. All twelve dolphin sightings were made during on-effort search, and eight of
the twelve on-effort dolphin sightings 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 2.7 and 2.8.
Table 2.7 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: Jun 14th/15th |
0.00 |
0.00 |
Set 2: Jun 20th/26th |
0.00 |
0.00 |
|
Set 3: Jul 20th/24th |
0.00 |
0.00 |
|
Set 4: Jul 27th
/28th |
0.00 |
0.00 |
|
Set 5: Aug 7th/15th |
0.00 |
0.00 |
|
Set 6: Aug 21st/31st |
0.00 |
0.00 |
|
NWL |
Set 1: Jun 14th/15th |
0.00 |
0.00 |
Set 2: Jun 20th/26th |
0.00 |
0.00 |
|
Set 3: Jul 20th/24th |
1.64 |
14.79 |
|
Set 4: Jul 27th
/28th |
0.00 |
0.00 |
|
Set 5: Aug 7th/15th |
4.95 |
6.61 |
|
Set 6: Aug 21st/31st |
6.58 |
18.09 |
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 2.8 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) |
||
June
– August 2017 |
September
– November 2011 |
June
– August 2017 |
September
– November 2011 |
|
Northeast Lantau |
0.0 |
6.00
± 5.05 |
0.0 |
22.19
± 26.81 |
Northwest Lantau |
2.20
± 2.88 |
9.85
± 5.85 |
6.58
± 8.12 |
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
- 9 individuals per group in North Lantau region during June 2017 to August 2017. 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
2.9.
Table 2.9 Average Dolphin Group Size
|
Average Dolphin Group Size |
|
June 2017
– August 2017 |
September - November 2011 |
|
Overall |
2.83
± 2.33 (n = 12) |
3.72
± 3.13 (n = 66) |
Northeast Lantau |
--- |
3.18
± 2.16 (n = 17) |
Northwest Lantau |
2.83
± 2.33 (n = 12) |
3.92
± 3.40 (n = 49) |
Whilst one limit
level exceedance was observed for the quarterly dolphin monitoring data between
June 2017
and August 2017, 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.
There was no dredging, reclamation or marine sheet piling works in
open waters during this reporting period. Thus, Passive Acoustic
Monitoring (PAM) and the day-time monitoring of Dolphin Exclusion Zone (DEZ) by
dolphin observers were not in effect during the reporting period.
Site inspections
were carried out on a weekly
basis to monitor the implementation of proper environmental pollution control
and mitigation measures under the Contract.
Thirteen (13) site inspections were carried out in the reporting quarter
on 7, 14, 21 and 28 June 2017; 5, 12, 19 and 26 July 2017; 2, 9, 16, 24 and 30
August 2017.
Key observations
during the site inspections in this reporting period are summarized in Table 2.10.
Table 2.10 Specific Observations and Recommendations during the Weekly
Site Inspection in this Reporting Period
Inspection
Date |
Environmental
Observations |
Recommendations/
Remarks |
|
7 June 2017 |
Works Area - TBM
Tunnel Cement bags
should be covered with tarpaulin sheets. Cement bags
should be covered with tarpaulin sheets. Works Area - Portion
S-B Accumulated
waste should be removed. Reminder from
SOR. Works Area -
Portion S-B The breaker
tip should be enclosed by noise reduction mat. |
Works Area - TBM
Tunnel The Contractor
was reminded to cover the cement bags with tarpaulin sheets. The Contractor
was reminded to cover the cement bags with tarpaulin sheets. Works Area - Portion
S-B The Contractor
was reminded to remove the accumulated rubbish. Reminder from
SOR Works Area -
Portion S-B The breaker
tip should be enclosed by noise reduction mat. |
|
14 June 2017 |
Works Area – Portion
N-C Drip tray
should be provided to the chemical containers. Broken
concrete should be removed. Works Area - Portion
S-B Accumulated
waste in the skip should be removed. |
Works Area – Portion
N-C The Contractor
was reminded to provide drip tray to the chemical containers. The Contractor
was reminded to remove the broken concrete. Works Area - Portion
S-B The Contractor
was reminded to remove the accumulated waste in the skip. |
|
21 June 2017 |
Works Area –
TBM tunnel Drip tray
should be provided to the chemical containers. Drip tray
should be provided to the chemical containers. |
Works Area –
TBM tunnel The Contractor
was reminded to provide drip tray to the chemical containers. The Contractor
was reminded to provide drip tray to the chemical containers. |
|
28 June 2017 |
Works Area – Portion
N-C Chemical label
should be provided to the chemical containers. Drip tray
should be provided to the chemical containers. Works Area - Portion
S-B Oil stains
near the pedestrian walkway should be removed. |
Works Area – Portion
N-C The Contractor
was reminded to provide chemical label to the chemical containers. The Contractor
was reminded to provide drip tray to the chemical containers. Works Area - Portion
S-B The Contractor
was reminded to remove the oil stains near the pedestrian walkway. |
|
5 July 2017 |
Works Area - TBM
Tunnel Cement bags
should be covered with tarpaulin sheets. Drip tray
should be provided to the chemical containers. Works Area - Portion
S-B Stagnant water
should be pumped to the wastewater treatment facility. Accumulated
rubbish should be put in the skip. |
Works Area - TBM
Tunnel The Contractor
was reminded to cover the cement bags with tarpaulin sheets. The Contractor
was reminded to provide drip tray to the chemical containers. Works Area - Portion
S-B The Contractor
was reminded to pump the stagnant water to the wastewater treatment facility. The Contractor
was reminded to put the accumulated rubbish in the skip. |
|
12 July 2017 |
Works Area – Portion
N-C Accumulated
waste in the skip should be removed. Works Area - Portion
S-B Accumulated
waste in the skip should be removed. |
Works Area – Portion
N-C The Contractor
was reminded to remove the accumulated waste in the skip. Works Area - Portion
S-B The Contractor
was reminded to remove the accumulated waste in the skip. |
|
19 July 2017 |
Works Area – Portion
S-B Sand bags
should be provided to prevent the leakage of cement water to the main road. |
Works Area – Portion
S-B The Contractor
was reminded to provide sand bags to prevent the leakage of cement water to
the main road. |
|
26 July 2017 |
Reminder from
SOR. Works Area -
Portion N-A The abandoned
wheel washing facilities should be filled up with sand to avoid breeding of mosquitoes. |
Reminder from
SOR. Works Area -
Portion N-A The Contractor
was reminded to fill the abandoned wheel washing facilities with sand to
avoid breeding of mosquitoes. |
|
2 August 2017 |
Works Area - Portion
N-C NRMM label
should be displayed on the the road works machine. NRMM label
should be displayed on the excavator. Works Area - Portion
N-A Drip tray
should be provided to the chemical container. Reminder from
SOR Works Area - Portion
S-B Water barriers
should have lids to prevent breeding of mosquitoes. |
Works Area - Portion
N-C The Contractor
was reminded to display NRMM label on the the road works machine. The Contractor
was reminded to display NRMM label on the excavator. Works Area - Portion
N-A The Contractor
was reminded to provide drip tray to the chemical container. Reminder from
SOR Works Area - Portion
S-B The Contractor
was reminded to cover the water barriers to prevent breeding of mosquitoes. |
|
9 August 2017 |
Works Area – TBM
tunnel Cement bags
should be covered by tarpaulin sheets. Drip tray
should be provided to the chemical container. Drip tray
should be provided to the air compressor. Reminder from
SOR Works Area - Portion
S-B Water barriers
should have lids to prevent breeding of mosquitoes. |
Works Area – TBM
tunnel The Contractor
was reminded to cover the cement bags by tarpaulin sheets. The Contractor
was reminded to provide drip tray to the chemical container. The Contractor
was reminded to provide drip tray to the air compressor. Reminder from
SOR Works Area - Portion
S-B The Contractor
was reminded to cover the water barriers to prevent breeding of mosquitoes. |
|
16 August 2017 |
Works Area – Portion
N-C Drip tray
should be provided to the chemical container. Drip tray
should be provided to the chemical container. NRMM label
should be displayed on the equipment. Works Area – Portion
S-B Stagnant water
should be pumped to wastewater treatment facilities. |
Works Area – Portion
N-C The Contractor
was reminded to provide drip tray to the chemical container. The Contractor
was reminded to provide drip tray to the chemical container. The Contractor
was reminded to display NRMM label on the equipment. Works Area – Portion
S-B The Contractor
was reminded to pump the stagnent water to wastewater treatment facilities. |
|
24 August 2017 |
Works Area – Portion
N-C Material bags should
be covered with tarpaulin sheet. Works Area – Portion
N-A Slope of
surcharge should be covered with tarpaulin sheet. Floating
rubbish should be removed. Reminder from
SOR Works Area - Portion
N-C Stagnant water
in the container should be removed. |
Works Area – Portion
N-C The Contractor
was reminded to cover the material bags with tarpaulin sheet. Works Area – Portion
N-A The Contractor
was reminded to cover the slope of surcharge with tarpaulin sheet. The Contractor
was reminded to remove the floating rubbish. Reminder from
SOR Works Area - Portion
N-C The Contractor
was reminded to remove the stagnant water in the container. |
|
30 August 2017 |
Works Area –
Portion N-A Slope of
surcharge should be covered with tarpaulin sheet. Works Area – Portion
S-B Accumulated
rubbish in the skip should be removed. Reminder from
SOR Works Area - Portion
S-B Stagnant water
in the drum should be removed. |
Works Area –
Portion N-A The Contractor
was reminded to cover the slope of surcharge with tarpaulin sheet. Works Area – Portion
S-B The Contractor
was reminded to remove the accumulated rubbish in the skip. Reminder from
SOR Works Area - Portion
S-B The Contractor
was reminded to remove the stagnant water in the drum. |
|
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) and chemical wastes. Reference has been made to the waste flow table
prepared by the Contractor (Appendix J). The quantities of different types of wastes
are summarized in Table 2.11.
Table 2.11 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 |
|
||||||
June 2017 |
194 |
0 |
317 |
0 |
0 |
0 |
0 |
|
July 2017 |
652 |
0 |
272 |
0 |
0 |
0 |
0 |
|
August 2017 |
1,624 |
0 |
305 |
0 |
0 |
0 |
0 |
|
Total |
2,470 |
0 |
894 |
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. |
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 2.12 below.
Table 2.12 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 |
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/18-006 |
7 May 2017 |
6 June 2017 |
DBJV |
Southern
Landfall |
Construction
Noise Permit |
GW-RW0247-17 |
19 May 2017 |
9 November 2017 |
DBJV |
For
Urmston Road in front of Pillar Point |
Construction
Noise Permit |
GW-RW0279-17 |
13 June 2017 |
12 December 2017 |
DBJV |
WA23
@ Tsing Yi |
Construction
Noise Permit |
PP-RS0012-17 |
13 June 2017 |
30
August 2017 |
DBJV |
Southern
Landfall |
Construction
Noise Permit |
GW-RW0143-17 |
29 March 2017 |
28
September 2017 |
DBJV |
For
Portion N6 |
Construction
Noise Permit |
GW-RS0165-17 |
1 March 2017 |
2
September 2017 |
DBJV |
For
Southern Landfall |
Construction
Noise Permit |
PP-RS0019-17 |
31 August 2017 |
30
November 2017 |
DBJV |
Southern
Landfall (Percussive Piling) |
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-one monitoring events for
1-hour TSP and thirty monitoring events for 24-hour TSP were undertaken in
which four Action Level exceedances for 1-hr TSP; no Action Level exceedances
or Limit Level exceedances for 24-hr TSP were recorded in this reporting
quarter (Table 2.13).
Table 2.13 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 |
- |
- |
0 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR1 |
Action Level |
2017-08-22 |
- |
1 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR5 |
Action Level |
2017-07-29 |
- |
1 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR6 |
Action Level |
2017-07-29 |
- |
1 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR10 |
Action Level |
2017-07-29 |
- |
1 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
Total number of Action level Exceedances: |
4 |
0 |
|||
Total number of Limit level Exceedances: |
0 |
0 |
Four Action
Level exceedances were unlikely to be due to the project. During the period of the land-based construction
works on 29 July 2017, the Contractor has implemented the required mitigation
measures as per the EP, approved EIA and Updated EM&A Manual. On 22 August 2017, no construction works was
carried out as Typhoon Hato was approaching and The Hong Kong Observatory
expected to issue T8 signal soon.
Therefore, the exceedance was unlikely to be due to the Project
One (1) Limit
Level exceedance was observed for the quarterly dolphin monitoring data between
June and August 2017, 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 I.
The
Environmental Complaint Handling Procedure is provided in Figure 2.3.
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 I.
As informed by
the Contractor, the major works for the Project 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 ·
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; and ·
Bulk Excavation – Portion S-A. |
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.
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 considered to be necessary at this
stage. The monitoring programme will be
evaluated as appropriate in the next reporting period.
This Fifteen
Quarterly EM&A Report presents the findings of the EM&A activities undertaken
during the period from 1 June 2017 to 31 August 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) and dolphin monitoring were carried out
in the reporting period. Four (4) Action
Level exceedances and zero (0) Limit Level exceedance of 1-hour TSP were
recorded in the air quality monitoring of this reporting period.
A total of 12
groups of 34 Chinese White Dolphins sightings were recorded during the six sets
of surveys in this reporting quarter. All
twelve dolphin sightings were made during on-effort search, and eight of the
twelve on-effort dolphin sightings were made on primary lines. Whilst one limit level exceedance was
observed for the quarterly dolphin monitoring data between June 2017 and August
2017, 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.
Thirteen 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.