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 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
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 Eleventh Quarterly EM&A report
presenting the EM&A works carried out during the period from 1 June 2016 to
31 August 2016 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;
·
Shaft Structure and Backfilling – Portion N-C;
·
Construction of Cross Passage Tympanum – TBM tunnel;
·
Excavation of Sub-sea Tunnel – TBM tunnel;
·
Thrust Frame Removal – TBM tunnel;
·
Cross Passage Lining Installation – TBM Tunnel;
·
Corbel Construction – TBM Tunnel;
·
Sub-sea Tunnel Gallery Installation – TBM tunnel;
·
Slab Construction of Tunnel Protection Enhancement –
TBM tunnel;
·
Deep Band Drain Installation – Portion S-A;
·
Dewatering Deep well Installation – Portion S-A; and
·
Jet Grouting, CSM Ground Treatment and Diaphragm Wall
Construction – Portion S-A.
.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP Monitoring 31
sessions
1-hour TSP Monitoring 31
sessions
Impact Dolphin Monitoring 6 sessions
Joint Environmental Site Inspection 14 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
No exceedances were recorded from the air quality
monitoring in this reporting period.
Dolphin Monitoring
Whilst
one (1) Limit Level exceedance was observed for the quarterly dolphin
monitoring data between June and August 2016, 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.
Two
environmental complaints regarding muddy water discharge near the Pier at 33 Ho
Yeung Street, Tuen Mun at
Northern Landfall and marine litter disposal near Tuen
Mun Ferry Pier were received from EPD on 6 July 2016
and from ENPO on 16 July 2016 respectively. Upon investigation, the complaints were
considered not related to this Project.
No notification
of summons or successful prosecution recorded in the 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;
· Preparation
of Phase 2 Reclamation – Portion N-A;
· Shaft
Structure and Backfilling – Portion N-C;
· Construction
of Cross Passage Tympanum – TBM tunnel;
· Cross
Passage Lining Installation – TBM Tunnel;
· Corbel
Construction – TBM Tunnel;
· Excavation
of Sub-sea Tunnel – TBM tunnel;
· Sub-sea
Tunnel Gallery Installation – TBM tunnel;
· Deep
Band Drain Installation – Portion S-A;
· Dewatering
Deep well Installation – Portion S-A; and
· Jet
Grouting, CSM Ground Treatment and Diaphragm Wall Construction – Portion S-A
Future Key Issues
As informed by the Contractor, Phase I Reclamation
works for the Northern Landfall was substantially completed in December 2014, a
proposal letter was sent to EPD on 21 May 2015 to seek approval for the temporary
suspension of Water Quality Monitoring.
Subsequently, a letter from EPD on 5 June 2015 stated that they have no
strong objection to the temporary suspension of the water quality
monitoring. Water Quality Monitoring was
suspended from 6 June 2015 effectively and will resume when Phase II
Reclamation commences in the fourth quarter of 2016 tentatively.
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-354/2009A) 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 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 |
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 |
Portion N-A ·
Box Culvert Extension Portion N-C ·
Shaft Structure and Backfilling |
TBM tunnel ·
Construction of Cross Passage Tympanum ·
Cross Passage Lining Installation ·
Corbel Construction ·
Excavation of Sub-sea Tunnel ·
Thrust Frame Removal ·
Sub-sea Tunnel Gallery Installation ·
Slab Construction of Tunnel Protection Enhancement Portion S-A ·
Deep Band Drain Installation ·
Dewatering Deep well Installation ·
Jet Grouting, CSM Ground Treatment and Diaphragm
Wall Construction |
Figure 1.2 Locations of Construction Activities – June
2016 to August 2016
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 |
Location |
Description |
Parameters
& Frequency |
Monitoring
Dates |
ASR1 |
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 |
1, 4, 7, 10, 13,
16, 19, 22, 25 and 28 June 2016; 1, 4, 7, 10, 13,
16, 19, 22, 25, 28 and 31 July 2016; and 3, 6, 9, 12, 15,
18, 21, 24, 27 and 30 August 2016 |
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: Weather Wizard III (S/N: WE90911A30) /
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 F and detailed impact air quality monitoring data
were reported in the Thirty-two to Thirty-four 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 2016 to
August 2016 |
ASR 1 |
77 |
44
- 170 |
331 |
500 |
ASR 5 |
100 |
47
- 199 |
340 |
500 |
|
AQMS1 |
65 |
45
– 128 |
335 |
500 |
|
ASR6 |
89 |
44
– 162 |
338 |
500 |
|
ASR10 |
68 |
33
– 128 |
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 2016 to
August 2016 |
ASR 1 |
56 |
44
- 88 |
213 |
260 |
ASR 5 |
59 |
43
- 84 |
238 |
260 |
|
AQMS1 |
47 |
39
– 65 |
213 |
260 |
|
ASR6 |
54 |
39
– 76 |
238 |
260 |
|
ASR10 |
52 |
43
– 73 |
214 |
260 |
No Action or Limit Level exceedances for 1-hr TSP were
recorded. 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.
As informed by the Contractor, Phase I Reclamation
works for the Northern Landfall was substantially completed in December 2014, a
proposal letter was sent to EPD on 21 May 2015 to seek approval for the
temporary suspension of Water Quality Monitoring. Subsequently, a letter from EPD on 5 June
2015 stated that they have no strong objection to the temporary suspension of
the water quality monitoring. Water
Quality Monitoring was suspended from 6 June 2015 effectively and will resume
when Phase II Reclamation commences in the fourth quarter of 2016 tentatively.
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 2.6 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 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 897.06 km of survey effort was conducted,
with 92.5% 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, 341.80 km and 555.26 km
of survey effort were conducted from NEL and NWL survey areas, respectively. The total survey effort conducted on primary
and secondary lines were 648.70 km and 248.36 km, respectively. The survey efforts are summarized in Appendix G.
A total of 10 groups of 34 Chinese White Dolphins sightings
were recorded during the six sets of surveys in this reporting quarter. Seven
of the ten dolphin sightings were
made during on-effort search, and all seven on-effort dolphin
sightings were made on primary lines. During this reporting
quarter, all except one dolphin groups were sighted in NWL, while an off-effort
of a lone 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 1st/6th |
0.00 |
0.00 |
Set 2: Jun 13th/17th |
0.00 |
0.00 |
|
Set 3: Jul 5th/12th |
0.00 |
0.00 |
|
Set 4: Jul 18th
/27th |
0.00 |
0.00 |
|
Set 5: Aug 5th/9th |
0.00 |
0.00 |
|
Set 6: Aug 17th/23rd |
0.00 |
0.00 |
|
NWL |
Set 1: Jun 1st/6th |
0.00 |
0.00 |
Set 2: Jun 13th/17th |
0.00 |
0.00 |
|
Set 3: Jul 5th/12th |
4.60 |
9.20 |
|
Set 4: Jul 18th
/27th |
0.00 |
0.00 |
|
Set 5: Aug 5th/9th |
4.24 |
28.28 |
|
Set 6: Aug 17th/23rd |
1.48 |
7.40 |
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
2016 - August 2016 |
September
- November 2011 |
June
2016 - August 2016 |
September
- November 2011 |
|
Northeast Lantau |
0.0 |
6.00 ± 5.05 |
0.0 |
22.19 ± 26.81 |
Northwest Lantau |
1.72
± 2.17 |
9.85 ± 5.85 |
7.48 ± 10.98 |
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 June to August 2016. 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
– August 2016 |
September
– November 2011 |
|
Overall |
3.40 ± 3.34 (n = 10) |
3.72 ± 3.13 (n = 66) |
Northeast Lantau |
1.00
(n = 1) |
3.18 ± 2.16 (n = 17) |
Northwest Lantau |
3.67
± 3.43 (n = 9) |
3.92 ± 3.40 (n = 49) |
Whilst one limit level exceedance was observed for the
quarterly dolphin monitoring data between June and August 2016, 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. Fourteen (14)
site inspections were carried out in the reporting quarter on 1, 8, 15, 22 and
29 June 2016; 6, 13, 20 and 27 July 2016;3, 10, 17, 24 and 31 August 2016.
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 |
|
1 June 2016 |
Works
Area – Portion N-C Stagnant
water should be removed from the tank. |
Works
Area – Portion N-C The
Contractor was reminded to remove the stagnant water from the tank. |
|
8
June 2016 |
Works
Area –TBM tunnel Drip
tray should be provided to the chemical containers. Works
Area - Portion S-A Drip
tray should be provided to the oil drums. Works
Area – Portion S-B Oil
drums should be removed from the machine. |
Works
Area –TBM tunnel The
Contractor was reminded to provide drip tray to the chemical containers. Works
Area - Portion S-A The
Contractor was reminded to provide drip tray to the oil drums. Works
Area – Portion S-B The
Contractor was reminded to remove the oil drums from the machine. |
|
15 June 2016 |
Works
Area – Portion N-C Drip
tray should be provided to the chemical drum. Works
Area – Portion S-A Chemical
labels should be provided to the oil drums. |
Works
Area – Portion N-C The
Contractor was reminded to provide drip tray to the chemical drum. Works
Area – Portion S-A The
Contractor was reminded to provide chemical labels to the oil drums. |
|
22
June 2016 |
Works Area – Portion S-B Water
spraying should be applied more frequently during dry condition. |
Works Area – Portion S-B The
Contractor was reminded to apply water spraying more frequently during dry
condition. |
|
29
June 2016 |
Works
Area – Portion N-B Water
spraying should be applied more frequently during dry condition. Works
Area – Portion S-B Wastewater
should be directed to the wastewater treatment facility properly. Chemical
labels should be provided to the acid containers. |
Works
Area – Portion N-B The
Contractor was reminded to apply water spraying more frequently during dry
condition. Works
Area – Portion S-B The
Contractor was reminded to properly direct the wastewater to the wastewater
treatment facility. The
Contractor was reminded to provide chemical labels to the acid containers. |
|
6 July 2016 |
Works
Area – Portion N-C Oil
drum should be removed after used. Works
Area – TBM tunnel Oil
drum should be removed after used. |
Works
Area – Portion N-C The
Contractor was reminded to remove the oil drum after used. Works
Area – TBM tunnel The
Contractor was reminded to remove the oil drum after used. |
|
13
July 2016 |
Works
Area – Portion N-C Rubbish
and empty chemical drums should be removed. Works
Area – Portion S-B Drip
tray and chemical labels should be provided to the chemical containers. |
Works
Area – Portion N-C The
Contractor was reminded to remove the rubbish and empty chemical drums. Works
Area – Portion S-B The
Contractor was reminded to provide drip tray and chemical labels to the
chemical containers. |
|
20 July 2016 |
Works
Area – Portion S-B Stagnant
water in the drip tray should be removed. |
Works
Area – Portion N-C The
Contractor was reminded to remove the stagnant water in the drip tray. |
|
27
July 2016 |
Works
Area – Portion N-A Accumulated
waste in the skip should be removed. Works
Area – Portion S-C Drip
tray and labels should be provided to the chemicals. |
Works
Area – Portion N-A The
Contractor was reminded to remove the accumulated waste in the skip. Works
Area – Portion S-C The
Contractor was reminded to provide drip tray and labels to the chemicals. |
|
3 August
2016 |
Works
Area – TBM tunnel Drip
tray and labels should be provided to the chemicals. Works
Area – Portion S-C Accumulated
waste in the skip should be removed. |
Works
Area – TBM tunnel The
Contractor was reminded to provide drip tray and labels to the chemicals. Works
Area – Portion S-C The
Contractor was reminded to remove the accumulated waste in the skip. |
|
10
August 2016 |
Works
Area – TBM tunnel Drip
tray and labels should be provided to the chemicals. |
Works Area – TBM tunnel The
Contractor was reminded to provide drip tray and labels to the chemicals. |
|
17 August
2016 |
Works
Area – Portion N-C Drip
tray should be provided to the chemicals. Works
Area – Portion N-B Rubbish
should be removed in order to maintain better housekeeping. Surface
runoff should be controlled to prevent direct discharge to surface or marine
waters. Works
Area – Portion N-A Drip
tray and labels should be provided to the chemicals. Works
Area – Portion S-B Stagnant
water should be removed to maintain better housekeeping. |
Works
Area – Portion N-C The
Contractor was reminded to provide drip tray to the chemicals. Works
Area – Portion N-B The
Contractor was reminded to remove the rubbish in order to maintain better
housekeeping. The
Contractor was reminded to control the surface runoff to prevent direct
discharge to surface or marine waters. Works
Area – Portion N-A The
Contractor was reminded to provide drip tray and labels to the chemicals. Works
Area – Portion S-B The
Contractor was reminded to remove stagnant water to maintain better
housekeeping. |
|
24
August 2016 |
Works
Area – Portion N-B Water
spraying should be applied more frequently during dry condition. Sand
and mud in the surface channel should be removed. Works
Area – Portion S-B Drip
tray should be provided to the chemicals. |
Works
Area – Portion N-B The
Contractor was reminded to apply water spraying more frequently during dry
condition. The
Contractor was reminded to remove the sand and mud in the surface channel. Works
Area – Portion S-B The
Contractor was reminded to provide drip tray to the chemicals. |
|
31
August 2016 |
Works
Area – Portion N-C Accumulated
wastes beside the waste skips should be removed. Works
Area - TBM tunnel Cement
bags should be covered with tarpaulin sheet. Works
Area - Portion S-B Stagnant
water in the drip tray should be removed. |
Works
Area – Portion N-C The
Contractor was reminded to remove the accumulated wastes beside the waste
skips. Works
Area - TBM tunnel The
Contractor was reminded to cover the cement bags with tarpaulin sheet. Works
Area - Portion S-B The
Contractor was reminded to remove the stagnant water in the drip tray. |
|
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 recyclable materials.
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) |
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 |
|||||||
June 2016 |
5,597 |
0 |
0 |
214 |
200 |
0 |
0 |
0 |
July 2016 |
10,063 |
0 |
0 |
292 |
200 |
0 |
0 |
0 |
August 2016 |
31,621 |
0 |
0 |
323 |
0 |
0 |
0 |
0 |
Total |
47,281 |
0 |
0 |
829 |
400 |
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 Construction
Dust Notification |
363510 403620 |
19
August 2013 10 June 2016 |
Throughout
the Contract Throughout
the Contract |
DBJV DBJV |
Northern Landfall Southern Landfall |
Chemical
Waste Registration Chemical
Waste Registration |
5213-422-D2516-01 5213-951-D2591-01 |
10
September 2013 25 May 2016 |
Throughout
the Contract Throughout
the Contract |
DBJV DBJV |
Northern Landfall Southern Landfall |
Construction
Waste Disposal Account |
7018108 |
28 August
2013 |
Throughout
the Contract |
DBJV |
Waste disposal in Contract HY/2012/08 |
Waste
Water Discharge License |
WT00017707-2013 |
18
November 2013 |
30
November 2018 |
DBJV |
For works in site WA18 |
Waste
Water Discharge License Marine Dumping Permit Marine Dumping Permit |
WT00019248-2014 EP/MD/17-036 EP/MD/17-070 |
5
June 2014 7 June 2016 7 August 2016 |
30
June 2019 6 July 2016 6 September 2016 |
DBJV DBJV DBJV |
For site Portion N6 and Reclamation Area E Southern Landfall Southern Landfall |
Construction
Noise Permit Construction
Noise Permit |
GW-RW0180-16 GW-RW0450-16 |
9 April 2016 27 July 2016 |
30
September 2016 19
January 2017 |
DBJV DBJV |
For
Urmston Road in front of Pillar Point For
Urmston Road in front of Pillar Point |
Construction
Noise Permit |
GW-RW0334-16 |
14 June 2016 |
13
December 2016 |
DBJV |
For
site WA23A+B |
Construction Noise Permit |
GW-RW0143-16 |
29 March 2016 |
28 September 2016 |
DBJV |
For Portion N6 |
Construction Noise Permit |
GW-RS0324-16 |
18
April 2016 |
17 October 2016 |
DBJV |
For excavation works at Southern Landfall |
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.
For
air quality impact monitoring, a total of thirty-one monitoring events were
undertaken in which no Action Level or Limit 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 |
- |
- |
0 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR5 |
Action Level |
- |
- |
0 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR6 |
Action Level |
- |
- |
0 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
ASR10 |
Action Level |
- |
- |
0 |
0 |
Limit Level |
- |
- |
0 |
0 |
|
Total number of Action level Exceedances: |
0 |
0 |
|||
Total number of Limit level Exceedances: |
0 |
0 |
One (1) Limit Level exceedance was observed for the
quarterly dolphin monitoring data between June and August 2016, 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.
Two
environmental complaints regarding muddy water discharge near the Pier at 33 Ho
Yeung Street, Tuen Mun at
Northern Landfall and marine litter disposal near Tuen
Mun Ferry Pier were received from EPD on 6 July 2016
and from ENPO on 16 July 2016 respectively. Upon investigation, the complaints were
considered not related to this Project.
No notification of summons or successful prosecution
recorded in the 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; ·
Preparation of Phase 2 Reclamation – Portion N-A; ·
Shaft Structure and Backfilling – Portion N-C; ·
Construction of Cross Passage Tympanum – TBM tunnel; ·
Cross Passage Lining Installation – TBM Tunnel; ·
Corbel Construction – TBM Tunnel; ·
Excavation of Sub-sea Tunnel – TBM tunnel; ·
Sub-sea Tunnel Gallery Installation – TBM tunnel; ·
Deep Band Drain Installation – Portion S-A; ·
Dewatering Deep well Installation – Portion S-A; and ·
Jet Grouting, CSM Ground Treatment and Diaphragm
Wall Construction – Portion S-A. |
As informed by the Contractor, Phase I Reclamation
works for the Northern Landfall was substantially completed in December 2014, a
proposal letter was sent to EPD on 21 May 2015 to seek approval for the
temporary suspension of Water Quality Monitoring. Subsequently, a letter from EPD on 5 June
2015 stated that they have no strong objection to the temporary suspension of
the water quality monitoring. Water
Quality Monitoring was suspended from 6 June 2015 effectively and will resume
when Phase II Reclamation commences in the fourth quarter of 2016 tentatively.
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 Eleventh Quarterly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 June 2016
to 31 August 2016, 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. No Action or Limit Level exceedances for 1-hr
TSP were recorded. No Action or Limit
Level exceedances for 24-hr TSP were record.
A total of 10 groups of 34 Chinese White Dolphins
sightings were recorded during the six sets of surveys in this reporting
quarter. Seven of the ten dolphin
sightings were made during on-effort search, and all seven on-effort dolphin
sightings were made on primary lines. Whilst
one limit level exceedance was recorded for the quarterly dolphin monitoring
data between June and August 2016, 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. 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.
Fourteen 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.
Two
environmental complaints regarding muddy water discharge near the Pier at 33 Ho
Yeung Street, Tuen Mun at
Northern Landfall and marine litter disposal near Tuen
Mun Ferry Pier were received from EPD on 6 July 2016
and from ENPO on 16 July 2016 respectively. Upon investigation, the complaints were
considered not related to this Project.
No notification of summons or successful prosecution
recorded in 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.