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 Month
3.2 Key Issues for the Coming Month
3.3 Monitoring Schedule for the
Coming Month
4 Conclusions
and recommendations
4.1 Conclusions
Appendix A Project Organization for Environmental
Works
Appendix B Construction
Programme
Appendix C Environmental
Mitigation And Enhancement Measure Implementation Schedules (EMIS)
Appendix D Summary
of Action And Limit Levels
Appendix E Copies
of Calibration Certificate for Air Quality Monitoring
Appendix F EM&A
Monitoring Schedules
Appendix G Impact
Air Quality Monitoring Results
Appendix H Meteorological
Data
Appendix I Impact
Dolphin Monitoring Survey
Appendix J Event
And Action Plan
Appendix K Cumulative
Statistics On Exceedance, Complaints, Notifications of Summons and Successful
Prosecutions
Appendix L Waste
Flow Table
Executive Summary
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 Project commenced on 1
November 2013 and will tentatively be completed by the end of 2019. 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 Sixtieth Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 31
October 2018 for the Contract No.
HY/2012/08 Northern
Connection Sub-sea Tunnel Section (the “Project”) in
accordance with the Updated EM&A Manual of the TM-CLK
Link Project. As informed by the
Contractor, major activities in the reporting period included:
Land-based Works
·
Construction of Cross Passage Tympanum – TBM tunnel;
·
Cross Passage Lining Installation – TBM Tunnel;
·
Cross Passage Construction by Pipe Jacking – TBM
Tunnel;
·
Corbel & OVHD Construction – TBM Tunnel;
·
Parapet wall and fireboard Installation – TBM Tunnel;
·
Bulk Excavation – Portion N-A; and
·
CSM treatment, Jet Grouting works and D-wall
Construction – 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 11
sessions
1-hour TSP Monitoring 11
sessions
Impact Dolphin Monitoring 2 sessions
Joint Environmental Site Inspection 5 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
One (1) Action Level exceedance of 1-hour TSP was
recorded at ASR1 on 4 October 2018. One
(1) Action Level exceedance of 1-hour TSP was recorded at ASR1 on 10 October
2018. One (1) Action Level exceedance of
1-hour TSP was recorded at ASR5 on 31 October 2018. Investigation reports of exceedances on 4
October 2018 and 10 October 2018 are provided in Appendix K. Investigation report of exceedance on 31
October 2018 will be provided in the next monthly report.
Breaches
of Action and Limit Levels for Dolphin Monitoring
Due
to monthly variation in dolphin occurrence within the survey area, it would be
more appropriate to draw conclusion on whether any unacceptable impacts on
dolphins have been detected in relation to the construction activities of this
Project in the quarterly EM&A reports, where comparison on distribution,
group size and encounter rates of dolphins between the quarterly impact
monitoring period and baseline monitoring period will be made.
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 Month
Works to be undertaken in the next monitoring period
of November 2018 include the following:
Land-based Works
·
Construction of Cross Passage Tympanum – TBM tunnel;
·
Cross Passage Construction by Pipe Jacking – TBM
tunnel;
·
Cross Passage Lining Installation – TBM Tunnel;
·
Parapet wall and fireboard Installation – TBM Tunnel
·
Corbel & OVHD Construction – TBM Tunnel;
·
Bulk Excavation – Portion S-A; and
·
D-wall Construction – Portion S-A
Marine-based Works
·
Sloping seawall construction – Portion S-B
Future Key Issue
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of November 2018
are mainly associated with dust, water quality, marine ecology and waste
management issues.
1
Introduction
1.1
Background
According to the findings of the Northwest New Territories
(NWNT) Traffic and Infrastructure Review conducted by the Transport Department,
Tuen Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be
operating beyond capacity after 2016.
This forecast has been based on the estimated increase in cross boundary
traffic, developments in the Northwest New Territories (NWNT), and possible
developments in North Lantau, including the Airport developments, the Lantau
Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic
demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek
Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.
An Environmental Impact Assessment (EIA) of TM-CLKL
(the Project) was prepared in accordance with the EIA Study Brief (No.
ESB-175/2007) and the Technical
Memorandum of the Environmental Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the
Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report
(EIAO Register Number AEIAR-146/2009), an Environmental Permit (EP-354/2009)
for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4
November 2009, and EP variation (VEP) (EP-354/2009/A) was issued on 8 December
2010. Subsequent applications for
variation of environmental permits (VEPs), EP-354/2009/B,
EP-354/2009/C and EP-354/2009/D,
were granted on 28 January 2014, 10 December 2014 and 13 March 2015,
respectively.
Under Contract
No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by
the Highways Department (HyD) to undertake the design and construction of the
Northern Connection Sub-sea Tunnel Section of TM-CLKL while AECOM
Asia Company Limited was appointed by HyD as the Supervising Officer. For implementation of the environmental
monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong,
Limited (ERM) has been appointed as the Environmental Team (ET). Ramboll 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
construction phase of the Contract commenced on 1 November 2013 and will
tentatively be completed by the end of 2019.
The impact monitoring phase of the EM&A programme, including air
quality, water quality, marine ecological monitoring and environmental site inspections,
were commenced on 1 November 2013.
1.2
Scope of Report
This is the Sixtieth Monthly
EM&A Report under the Contract No. HY/2012/08
Tuen Mun – Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section.
This report presents a summary of the environmental monitoring and audit
works in October 2018.
1.3
Organization
Structure
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 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 |
|
|
Senior
Environmental Officer |
Ashley Au |
52950766 |
|
|
|
24-hour
hotline |
|
2293 7330 |
|
|
ET (ERM-HK) |
ET Leader |
Jasmine Ng |
2271 3311 |
2723 5660 |
1.4
Summary of Construction Works
The construction phase of this
Contract was commenced on 1 November 2013.
The construction programme is shown in Appendix
B.
As per DBJV’s information, details
of major construction works carried out in this reporting period are summarized
in Table 1.2.
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.
The implementation schedule of
environmental mitigation measures is presented in Appendix
C.
Table 1.2 Summary of Construction Activities Undertaken during the
Reporting Period
|
Construction Activities Undertaken |
|
Land-based Works |
|
·
Construction of Cross Passage Tympanum – TBM tunnel; ·
Cross Passage Lining Installation – TBM Tunnel; ·
Cross Passage Construction by Pipe Jacking – TBM
Tunnel; ·
Corbel & OVHD Construction – TBM Tunnel; ·
Parapet wall and fireboard Installation – TBM
Tunnel; ·
Bulk Excavation – Portion N-A; and ·
CSM treatment, Jet Grouting works and D-wall Construction
– Portion S-A |
Figure 1.2 Locations of Construction Activities – October 2018
|
|
2
EM&A Results
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
2.1
Air quality
2.1.1
Monitoring Requirements and Equipment
In accordance with the Updated EM&A Manual and the
Enhanced TSP Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3)
times every six (6) days and impact 24-hour TSP monitoring was carried out once
every six (6) days when the highest dust impact was expected. 1-hr and 24-hr TSP monitoring frequency was
increased to three times per day every three days and daily every three days,
respectively, as excavation works for launching shaft commenced on 24 October
2014.
High volume samplers (HVSs) were used to carry out the
1-hour and 24-hour TSP monitoring on 1, 4, 7, 10, 13, 16, 19, 22, 25, 28 and 31
October 2018 at the five (5) air quality monitoring stations in accordance with
the requirements stipulated in the Updated EM&A Manual (Figure 2.1; Table 2.1). Wind meter was installed at the rooftop of ASR5
for logging wind speed and wind direction.
Details of the equipment deployed are provided in Table 2.2. Copies of the
calibration certificates for the equipment are presented in Appendix E.
Table
2.1 Locations of Impact Air Quality
Monitoring Stations and Monitoring Dates in this Reporting Period
|
Monitoring Station |
Monitoring Dates |
Location |
Description |
Parameters
& Frequency |
|
ASR1 |
1,
4, 7, 10, 13, 16, 19, 22, 25, 28 and 31 October 2018 |
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 |
|
Pillar
Point Fire Station |
Office |
|
|
AQMS1 |
|
Previous
River Trade Golf |
Bare
ground |
|
|
ASR6 |
|
Butterfly
Beach Laundry |
Office |
|
|
ASR10 |
|
Butterfly
Beach Park |
Recreational
uses |
Table 2.2 Air
Quality Monitoring Equipment
|
Equipment |
Brand and Model |
|
High Volume Sampler |
Tisch Environmental Mass Flow Controlled Total
Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170) |
|
Wind Meter |
Davis (Model: Vantage Pro 2 (S/N: AS160104014) |
|
Wind Anemometer for calibration |
Lutron (Model No. AM-4201) |
2.1.2
Action
& Limit Levels
The Action and Limit Levels of the air quality
monitoring is provided in Appendix D. The Event and Action plan is presented in Appendix J.
2.1.3
Monitoring Schedule for the Reporting Month
The schedule for air quality monitoring in October
2018 is provided in Appendix F.
2.1.4
Results and Observations
The monitoring results for 1-hour TSP and 24-hour TSP
are summarized in Tables 2.3 and 2.4, respectively. Detailed impact air quality monitoring
results and graphical presentations are presented in Appendix G.
Table 2.3 Summary of 1-hour TSP Monitoring Results in this Reporting
Period
|
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
ASR1 |
140 |
48
- 451 |
331 |
500 |
|
ASR5 |
191 |
83
- 371 |
340 |
500 |
|
AQMS1 |
96 |
52
- 210 |
335 |
500 |
|
ASR6 |
125 |
59
- 234 |
338 |
500 |
|
ASR10 |
80 |
45
- 136 |
337 |
500 |
Table 2.4 Summary of 24-hour TSP Monitoring Results in this Reporting
Period
|
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
ASR1 |
81 |
37
- 125 |
213 |
260 |
|
ASR5 |
125 |
76
- 193 |
238 |
260 |
|
AQMS1 |
64 |
44
- 90 |
213 |
260 |
|
ASR6 |
89 |
57
- 130 |
238 |
260 |
|
ASR10 |
62 |
45
- 86 |
214 |
260 |
The weather condition during the monitoring period
varied from sunny to cloudy. The major
dust sources in the reporting period included construction activities under the
Contract as well as nearby traffic emissions.
A total of 11 1-hour TSP and 24-hour TSP monitoring
were undertaken in this reporting month.
One (1) Action Level exceedance of 1-hour TSP was recorded at ASR1 on 4
October 2018. One (1) Action Level
exceedance of 1-hour TSP was recorded at ASR1 on 10 October 2018. One (1) Action Level exceedance of 1-hour TSP
was recorded at ASR5 on 31 October 2018.
Meteorological information collected at the ASR5,
including wind speed and wind direction, is provided in Appendix H.
2.2
Water Quality Monitoring
Seawall Enhancement Works at Northern Landfall has
been completed on 31 December 2017.
Notification of suspension of water quality monitoring has been approved
by EPD on 2 March 2018. Water Quality Monitoring
will be resumed prior to the start of sloping seawall construction in November
2018.
2.3
Dolphin
Monitoring
2.3.1
Monitoring Requirements
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.
2.3.2
Monitoring Equipment
Table 2.5
summarises the equipment used for the impact dolphin monitoring.
Table 2.5 Dolphin Monitoring Equipment
|
Equipment |
Model |
|
Global Positioning
System (GPS) |
Garmin 18X-PC Geo One Phottix |
|
Camera |
Nikon D90 300m 2.8D fixed focus Nikon D90 20-300m zoom lens |
|
Laser Binocular |
Infinitor LRF 1000 |
|
Marine Binocular |
Bushell 7 x 50 marine binocular with compass and reticules |
|
Vessel for Monitoring |
65 foot single engine motor vessel with viewing platform 4.5m above
water level |
2.3.3
Monitoring Parameter, Frequencies & Duration
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.
2.3.4
Monitoring Location
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 |
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* |
Remarks: The coordinates of several starting and ending
points have been revised due to the presence of a work zone to the north of the
airport platform with intense construction activities in association with the
construction of the third runway expansion for the Hong Kong International
Airport. Co-ordinates in red and
marked with asterisk are revised co-ordinates of transect line.
2.3.5
Action
& Limit Levels
The Action and Limit levels of impact dolphin
monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix J.
2.3.6
Monitoring Schedule for the Reporting Month
Dolphin monitoring was carried out on 4, 11, 16 and 18
of October 2018. The dolphin monitoring
schedule for the reporting month is shown in Appendix F.
2.3.7
Results & Observations
A total of
265.60 km of survey effort was collected, with 99.8% of the total survey effort
being conducted under favourable weather conditions (i.e. Beaufort Sea State 3
or below with good visibility) in October 2018.
Among the two areas, 95.50 km and 170.10 km of survey effort were
collected from NEL and NWL survey areas, respectively. The total survey effort conducted on primary
and secondary lines were 192.70 km and 72.90 km respectively. The survey efforts are summarized in Appendix
I.
Two group of 6 Chinese White Dolphins sightings was
recorded during the two sets of surveys in October 2018. The dolphin sighting was made in NWL, while
none was sighted in NEL. Both dolphin
sighting was made during on-effort search .
One of the dolphin sightings was made on primary line. The dolphin group was not associated with any
operating fishing vessel.
No dolphin sighting was made in the proximity
of the TM-CLKL alignment. The distribution of dolphin sightings during the
reporting month is shown in Figure 2.3.
Encounter rates of Chinese White Dolphins are deduced
from the survey effort and on-effort sighting data made under favourable
conditions (Beaufort 3 or below) in October 2018 with the 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: October 4th
/ 11th |
0.0 |
0.0 |
|
Set 2: October 16th
/ 18th |
0.0 |
0.0 |
|
|
NWL |
Set 1: October 4th
/ 11th |
0.0 |
0.0 |
|
Set 2: October 16th
/ 18th |
1.6 |
3.3 |
|
Note: Dolphin Encounter Rates
are deduced from the Two Sets of Surveys (Two Surveys in Each Set) in October 2018
in Northeast (NEL) and Northwest Lantau (NWL)
Table 2.8 Monthly Average Encounter Rates
|
|
Encounter rate (STG) (no. of on-effort dolphin sightings per 100
km of survey effort) |
Encounter rate (ANI) (no. of dolphins from all
on-effort sightings per 100 km of survey effort) |
||
|
Primary
Lines Only |
Both Primary and Secondary Lines |
Primary
Lines Only |
Both Primary and Secondary Lines |
|
|
Northeast Lantau |
0.0 |
0.0 |
0.0 |
0.0 |
|
Northwest Lantau |
0.8 |
1.2 |
1.7 |
3.5 |
Note:
Overall dolphin encounter rates (sightings per 100 km of survey effort) from
all four surveys are conducted in October 2018 on primary lines only as well
as both primary lines and secondary lines in Northeast and Northwest Lantau.
Due to
monthly variation in dolphin occurrence within the survey area, it would be
more appropriate to draw conclusion on whether any unacceptable impacts on
dolphins have been detected in relation to the construction activities of this
Project in the quarterly EM&A reports, where comparison on distribution,
group size and encounter rates of dolphins between the quarterly impact
monitoring period and baseline monitoring period will be made.
2.3.8
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.
2.4
EM&A
Site Inspection
Site inspections were carried out on a weekly basis to
monitor the implementation of proper environmental pollution control and
mitigation measures under the Contract.
In the reporting month, five (5) site inspections were carried out on 3,
10, 18, 24 and 31 October 2018.
Key observations and recommendations during the site
inspections in this reporting period are summarized in Table 2.9.
Table 2.9 Specific Observations and Recommendations during the Weekly
Site Inspection in this Reporting Month
|
Inspection Date |
Observations |
Recommendations/ Remarks |
|
3 October 2018 |
Works
Area – TBM tunnel Ÿ Drip
tray should be provided for the chemical containers. Works
Area – Portion N-C Ÿ Chemical
container on the ground should be removed. Works
Area – Portion S-B Ÿ The
drainage channel should be cleaned up. Reminder from the SOR Works
Area - Portion S-A Ÿ Lid
or cover should be provided for the water barriers. |
Works
Area – TBM tunnel Ÿ The
Contractor was reminded to provide drip tray for the chemical containers. Works
Area – Portion N-C Ÿ The
Contractor was reminded to remove the chemical containers on the ground. Works
Area – Portion S-B Ÿ The
Contractor was reminded to clean up the drainage channel. Reminder from the SOR Works
Area - Portion S-A Ÿ The
Contractor was reminded to provide lid or cover for the water barriers. |
|
10
October 2018 |
Works
Area – Portion N-A Ÿ Accumulated
general refuse in the waste skip should be removed. Ÿ Drip
tray should be provided for the chemical container. Ÿ Water
spraying should be applied more frequently during dry conditions. Works
Area – Portion S-C Ÿ Cement
bags should be covered with tarpaulin sheeting. Works
Area - Portion S-B Ÿ Faded
NRMM label should be replaced. Reminder from the SOR Works
Area - Portion N-A Ÿ The
hole should be filled up with sand or crushed rock to avoid trapping water. |
Works
Area – Portion N-A Ÿ The
Contractor was reminded to remove accumulated general refuse in the waste
skip. Ÿ The
Contractor was reminded to provide
drip tray for the chemical container. Ÿ The
Contractor was reminded to apply water spraying more frequently during dry
conditions. Works
Area – Portion S-C Ÿ The
Contractor was reminded to cover the cement bags with tarpaulin sheeting. Works
Area - Portion S-B Ÿ The
Contractor was reminded to replace the faded NRMM label. Reminder from the SOR Works
Area - Portion N-A Ÿ The
Contractor was reminded to fill up the hole with sand or crushed rock to
avoid trapping water. |
|
18 October
2018 |
Works
Area – Portion S-C Ÿ Drip
tray and chemical label should be provided for the oil drums. Works
Area – Portion S-B Ÿ Faded
NRMM label on the generator should be replaced. |
Works
Area – Portion S-C Ÿ The
Contractor was reminded to provide drip tray and chemical label for the oil
drums. Works
Area – Portion S-B Ÿ The
Contractor was reminded to replace the faded NRMM label on the generator. |
|
24
October 2018 |
Works
Area - Portion N-A Ÿ Dusty
materials should be covered by tarpaulin sheet. Ÿ Water
spraying should be applied during dry conditions. |
Works
Area - Portion N-A Ÿ The
Contractor was reminded to cover dusty materials with tarpaulin sheets. Ÿ The
Contractor was reminded to apply water spraying during dry conditions. |
|
31
October 2018 |
Works
Area – Portion N-C Ÿ Water
spraying should be applied during dry conditions. Works
Area – Portion N-A Ÿ Drip
tray should be provided for the oil drums. Ÿ NRMM
label should be displayed on the generator. Works
Area - Portion S-B Ÿ Dusty
materials should be covered by tarpaulin sheets. Reminder from the SOR Works
Area – Portion S-B The
sound enclosure of the air compressor should be closed. |
Works
Area – Portion N-C Ÿ The
Contractor was reminded to apply water spraying during dry conditions. Works
Area – Portion N-A Ÿ The
Contractor was reminded to provided drip tray for the oil drums. Ÿ The
Contractor was reminded to displayed NRMM label on the generator. Works
Area - Portion S-B Ÿ The
Contractor was reminded to cover the dusty materials with tarpaulin sheets. Reminder from the SOR Works
Area – Portion S-B The
Contractor was reminded to close the sound enclosure of the air compressor. |
The Contractor has rectified all of the observations
as identified during environmental site inspections in the reporting
month.
2.5
Waste Management Status
The Contractor had submitted application form for
registration as chemical waste producer under the Contract. Sufficient numbers of receptacles were
available for general refuse collection and sorting.
Wastes generated during this reporting period included
mainly construction wastes (inert and non-inert), chemical wastes and marine
sediment. Reference has been made to the
waste flow table prepared by the Contractor (Appendix L). The quantities of different types of wastes
are summarized in Table 2.10.
Table 2.10 Quantities of Different Waste Generated in the Reporting Month
|
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) |
|||||||
|
October 2018 |
108,689 |
80,347 |
437 |
0 |
0 |
5,343 |
9,073 |
1,799 |
|
|
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.
2.6
Environmental Licenses and
Permits
The status of environmental licensing and permit is
summarized in Table 2.11 below.