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 Fifty-eighth Monthly EM&A report
presenting the EM&A works carried out during the period from 1 to 31 August
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 10
sessions
1-hour TSP Monitoring 10
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
on 26 August 2018. One (1) Action Level
exceedance of 1-hour TSP was recorded on 29 August 2018. Investigation reports are provided in Appendix K.
Breaches of Action and Limit Levels for Dolphin Monitoring
Whilst
one (1) Limit Level exceedance was observed for the quarterly dolphin
monitoring data between June 2018 and August 2018, no unacceptable impact from
the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel
Section on Chinese White Dolphins was noticeable from general
observations. Due to monthly variation
in dolphin occurrence within the study area, it would be more appropriate to
draw conclusion on whether any impacts on dolphins have been detected related
to the construction activities of the TM-CLKL Northern Connection Sub-sea
Tunnel Section in the quarterly EM&A reports, where comparison on
distribution, group size and encounter rates of dolphins between the quarterly
impact monitoring period and baseline monitoring period will be made.
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
September 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
There
will be no dredging, reclamation or marine sheet piling works in open waters
during next reporting period.
Future Key Issue
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of September 2018 are
mainly associated with dust, 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 Fifty-eighth 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 August 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 – August 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 2, 5, 8, 11, 14, 17, 20, 23, 26 and 29
August 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 |
2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 August 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 August 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 |
134 |
15 – 417 |
331 |
500 |
|
ASR5 |
140 |
46 - 327 |
340 |
500 |
|
AQMS1 |
81 |
23 – 159 |
335 |
500 |
|
ASR6 |
100 |
23 – 217 |
338 |
500 |
|
ASR10 |
67 |
13 – 142 |
337 |
500 |
Table 2.4 Summary of 24-hour TSP Monitoring Results in this Reporting
Period
|
Station |
Average (µg/m3) |
Range (µg/m3) |
Action Level (µg/m3) |
Limit Level (µg/m3) |
|
ASR1 |
68 |
37 - 112 |
213 |
260 |
|
ASR5 |
65 |
31 - 102 |
238 |
260 |
|
AQMS1 |
42 |
19 - 66 |
213 |
260 |
|
ASR6 |
49 |
19 - 76 |
238 |
260 |
|
ASR10 |
38 |
19 - 57 |
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 10 1-hour TSP and 24-hour TSP monitoring
were undertaken in which two (2) Action Level exceedance of 1-hour TSP were recorded
in this reporting month.
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.
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 1, 8, 21 and 28 of
August 2018. The dolphin monitoring
schedule for the reporting month is shown in Appendix
F.
2.3.7
Results & Observations
A total of 258.01
km of survey effort was collected, with 100% of the total survey effort being
conducted under favourable weather conditions (i.e. Beaufort Sea State 3 or
below with good visibility) in August 2018. Among the two areas,
95.60 km and 162.41 km of survey effort were collected from NEL and NWL survey
areas, respectively. The total survey
effort conducted on primary and secondary lines were 188.10 km and 69.91 km respectively.
The survey efforts are summarized in Appendix
I.
Four group of 6 Chinese White Dolphins sightings were
recorded during the two sets of surveys in August 2018. All four dolphin sightings were made in NWL,
while none was sighted in NEL. Two of
the four dolphin sightings were made on primary lines during on-effort search
. All the four groups were 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 August 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: August 1st / 8th |
0.0 |
0.0 |
|
Set 2: August 21st / 28th |
0.0 |
0.0 |
|
|
NWL |
Set 1: August 1st / 8th |
3.4 |
6.7 |
|
Set 2: August 21st / 28th |
0.0 |
0.0 |
|
Note: Dolphin Encounter Rates are deduced from the Two Sets of Surveys
(Two Surveys in Each Set) in August 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 |
1.7 |
1.8 |
3.4 |
3.1 |
Note: Overall dolphin
encounter rates (sightings per 100 km of survey effort) from all four surveys
are conducted in August 2018 on primary lines only as well
as both primary lines and secondary lines in Northeast and Northwest Lantau.
One
(1) Limit Level exceedance was observed for the
quarterly dolphin monitoring data between June and August 2018, whilst no
unacceptable impact from the construction activities of the TM-CLKL Southern
Connection Viaduct Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White
Dolphin) was noticeable from general observations.
Due
to monthly variation in dolphin occurrence within the survey area, it would be
more appropriate to draw conclusion on whether any unacceptable impacts on
dolphins have been detected in relation to the construction activities of this
Project in the quarterly EM&A reports, where comparison on distribution,
group size and encounter rates of dolphins between the quarterly impact
monitoring period and baseline monitoring period will be made.
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 1, 8, 15, 22 and
29 August 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 |
|
1
August 2018 |
Works Area – Portion S-B Ÿ
Better housekeeping should be maintained on site. Works Area – Portion N-B Ÿ
Broken water barriers should be removed. Works Area – Portion N-A Ÿ
Drip tray should be provided for the oil drum. Ÿ
Water spraying should be applied more frequently
during dry conditions. |
Works Area – Portion S-B Ÿ
The Contractor was reminded to maintain better
housekeeping on site. Works Area – Portion N-B Ÿ
The Contractor was reminded to remove the broken
water barriers. Works Area – Portion N-A Ÿ
The Contractor was reminded to provide drip tray for
the oil drum. Ÿ
The Contractor was reminded to apply water spraying
more frequently during dry conditons. |
|
8 August 2018 |
Works Area – TBM tunnel Ÿ
Faded NRMM label on the tractor should be replaced. Works Area – Portion N-A Ÿ
Stagnant water should be removed. Works Area - Portion N-A Ÿ
3-sides tarpaulin shelter should be provided for the
storage of cement bags. Works Area - Portion S-B Ÿ
Water spraying should be applied more frequently
during dry conditions. |
Works Area – TBM tunnel Ÿ
The Contractor was reminded to replace the faded
NRMM label on the tractor. Works Area – Portion N-A Ÿ
The Contractor was reminded to remove the stagnant
water. Works Area - Portion N-A Ÿ
The Contractor was reminded to provide 3-sides
tarpaulin shelter for the storage of cement bags. Works Area - Portion S-B Ÿ
The Contractor was reminded to apply water spraying
more frequently during dry conditons. |
|
15
August 2018 |
Works Area – Portion N-A Ÿ
Faded NRMM label on the generator should be
replaced. Ÿ
Drip tray should be provided for the oil drums. Reminder
from the SOR Works Area - Portion S-B Ÿ
The hammer portion of the breaker should be wrapped
with soundproof mat. Ÿ
Panels of the air compressor should be closed. |
Works Area – Portion N-A Ÿ
The Contractor was reminded to replace the faded
NRMM label on the generator. Ÿ
The Contractor was reminded to provide drip tray for
the oil drums. Reminder
from the SOR Works Area - Portion S-B Ÿ
The Contractor was reminded to wrap the hammer
portion of the breaker. Ÿ
The Contractor was reminded to close the panels of
the air compressor. |
|
22 August 2018 |
Works Area - TBM tunnel Ÿ
Cement bags should be covered with tarpaulin
sheeting. Works Area - Portion S-B Ÿ
Stagnant water should be removed. Ÿ
Stagnant water should be removed. Reminder
from the SOR Works Area - Portion N-C Ÿ
The hammer portion of the breaker should be wrapped
with soundproof mat. Works Area - Portion S-B Ÿ
The hammer portion of the breaker should be wrapped
with soundproof mat. |
Works Area - TBM tunnel Ÿ
The Contractor was reminded to cover the cement bags
with tarpaulin sheet. Works Area - Portion S-B Ÿ
The Contractor was reminded to remove the stagnant
water. Ÿ
The Contractor was reminded to remove the stagnant
water. Reminder
from the SOR Works Area - Portion N-C Ÿ
The Contractor was reminded to wrap the hammer
portion of the breaker. Works Area - Portion S-B Ÿ
The Contractor was reminded to wrap the hammer
portion of the breaker. |
|
29 August 2018 |
Works Area - Portion S-C Ÿ
The broken water barriers should be removed. Works Area - Portion S-B Ÿ
Drip tray should be provided for the chemical
containers. |
Works Area - Portion S-C Ÿ
The Contractor was reminded to remove the broken
water barriers. Works Area - Portion S-B Ÿ
The Contractor was reminded to provide drip tray for
the chemical containers. |
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) |
Imported
Fill (m3) |
Recyclable Materials (c)
(kg) |
Chemical Wastes (kg) |
Marine Sediment (m3) |
||
|
|
Category L |
Category M (Mp & Mf) |
|||||||
|
August
2018 |
57,809 |
40,722 |
749 |
0 |
574,260 |
0 |
0 |
5,489 |
|
|
|
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.