TABLE OF CONTENTS
Executive
Summary
1 Introduction
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
1.5 Summary of EM&A Programme
Requirements
2 EM&A RESULTS
2.1 Air Quality
2.2 Noise Monitoring
2.3 Water Quality Monitoring
2.4 Dolphin Monitoring
2.5 EM&A Site Inspection
2.6 Waste Management Status
2.7 Environmental Licenses and
Permits
2.8 Implementation Status of
Environmental Mitigation Measures
2.9 Summary of Exceedances of the
Environmental Quality Performance Limit
2.10 Summary of Complaints,
Notification of Summons and Successful Prosecutions
3 Future Key Issues
3.1 Construction Activities for
the Coming Quarter
3.2 Key Issues for the Coming
Quarter
3.3 Monitoring Schedule for the
Coming Quarter
4 Conclusions
and recommendations
4.1 Conclusions
List of Appendices
Appendix
A Project Organization for Environmental Works
Appendix
B Three Month Rolling Construction Programmes
Appendix C Implementation Schedule of Environmental Mitigation
Measures (EMIS)
Appendix
D Summary of Action and Limit Levels
Appendix
E EM&A Monitoring Schedules
Appendix
F Impact Air Quality Monitoring Results and Graphical
Presentation
Appendix
G Impact Noise Monitoring Results and Graphical
Presentation
Appendix H Impact Water Quality Monitoring Results and Graphical
Presentation
Appendix I Impact Dolphin Monitoring Survey Results
Appendix J Event Action Plan
Appendix K Quarterly Summary of Waste Flow Table
Appendix L Cumulative Statistics on Exceedances, Complaints,
Notifications of Summons and Successful Prosecutions
Executive Summary
Under Contract No. HY/2012/07,
Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the
Southern Connection Viaduct 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). ENVIRON Hong
Kong Ltd. was employed by the HyD as the Independent
Environmental Checker (IEC) and Environmental Project Office (ENPO) in
accordance with Environmental Permit No. EP-354/2009/A. Further
applications for variation of environmental permit (VEP), EP-354/2009/B, EP-354/2009/C
and EP-354/2009/D, were granted on 28
January 2014, 10 December 2014 and 13 March 2015, respectively.
The construction phase of the Contract commenced on 31
October 2013 and will be tentatively completed by 2018. The impact monitoring of the EM&A programme, including air quality, noise, water quality and
marine ecological monitoring as well as environmental site inspections,
commenced on 31 October 2013.
This is the sixth quarterly EM&A report presenting
the EM&A works carried out during the period from 1 March to 31 May 2015
for the Southern Connection Viaduct Section 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:
March 2015
Marine
Works
· Construction
of Pile caps at Viaducts B, C, D & E;
· Marine
piling platform installation & uninstallation;
· Marine Piling
at Viaducts C & E; and
· Additional
marine ground investigation (GI) and laboratory testing.
Land-based
Works
· Construction of
pile cap superstructure of Viaduct B;
· Channel
re-construction at Area 1;
· Land Piling at Viaducts
B, C & D;
· Pre-drilling
works at Viaduct A;
· Construction of
pile cap at Viaducts B, C, D & E;
· Additional land
GI, trial pits & lab testing;
· Utility
surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 & 9SE-B/F9.
April 2015
Marine
Works
· Construction
and installation of pile caps;
· Marine
piling platform installation & uninstallation;
· Pier
construction;
· Installation of
launching gantry;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Drainage works;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Tree survey,
felling and transplanting;
· Utility
surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 & 9SE-B/F9.
May 2015
Marine
Works
· Construction
and installation of pile caps;
· Marine
piling platform installation & uninstallation;
· Pier
construction;
· Installation of
launching gantry;
· Marine piling
and
· Installation of
pier head segment.
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Drainage works;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Tree survey,
felling and transplanting;
· Relocation
of MTRC fence; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 & 9SE-B/F9.
A summary of monitoring and audit activities conducted
in the reporting period is listed below:
24-hour TSP monitoring 17 sessions
1-hour TSP monitoring 17 sessions
Noise monitoring 17
sessions
Water quality monitoring 39 sessions
Dolphin monitoring 6
sessions
Joint Environmental site inspection 13 sessions
Breaches of
Action and Limit Levels for Air Quality
No
exceedance of Action and Limit Levels was recorded for air quality monitoring
in the reporting period.
Breaches of
Action and Limit Levels for Noise
No
exceedance of Action and Limit Levels was recorded for construction noise
monitoring in the reporting period.
Breaches of Action
and Limit Levels for Water Quality
One (1) exceedance of Action Level for depth-averaged
SS during mid-ebb tide was recorded for water quality monitoring in the
reporting period.
Impact Dolphin
Monitoring
Whilst one (1) Limit Level exceedance
was observed for the quarterly dolphin monitoring data between March and May
2015, no unacceptable impact from the construction activities of the TM-CLKL
Southern Connection Viaduct Section on Chinese White Dolphins was noticeable
from general observations during the dolphin monitoring in this reporting
quarter. The exceedance is considered
unlikely due to the works of this Project upon further investigation.
Daily
marine mammal exclusion zone monitoring was undertaken during the period of marine
works under this Contract. Passive
Acoustic Monitoring (PAM) was also implemented for the detection of marine
mammal when marine works were carried out outside the daylight hours under this
Contract. No sighting of the
Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) was recorded in
the monitoring period during the exclusion zone monitoring.
Environmental
Complaints, Non-compliance & Summons
No environmental complaint, notification of summons
and successful prosecution was received in the reporting period.
Reporting
Change
The landscape and visual impact mitigation measures
was reported in a separated checklist instead of reported in the weekly
checklist with other mitigation measures, and the status of landscape and visual
impact mitigation measures are summarized in the EMIS of the EM&A
Reports. A complete proposal for
Landscape and Visual (L&V) mitigation measures monitoring was submitted
which was justified by the Environmental Team Leader (ETL) and the Independent
Environmental Checker (IEC) had no adverse comment.
Upcoming
Works for the Next Reporting Period
Works to be undertaken in the coming quarter include
the following:
June 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pile
cap installation;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling
and
· Installation of
pier head segment
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Pile cap installation;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and
·
Slope work of Slopes 9SE-B/C9 and 9SE-B/F85
July 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pile
cap installation;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling;
and,
· Installation of
pier head segment
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Pile cap installation;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and,
·
Slope work of Viaducts A & B
August 2015
Marine
Works
· Construction
and installation of pile caps;
· Uninstallation
of marine piling platform;
· Pile
cap installation;
· Pier
construction;
· Launching
gantry assembly;
· Marine piling
and
· Installation of
pier head segment
Land-based
Works
· Predrilling
at Viaduct F;
· Construction
and installation of pile caps;
· Pier
construction;
· Pile cap installation;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Relocation
of MTRC fence; and
·
Slope work of Viaducts A & B.
Future Key
Issues
Potential environmental impacts arising from the above
upcoming construction activities in the coming quarterly period are mainly
associated with air quality, noise, marine water quality, marine ecology and
waste management issue.
1
Introduction
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 (EP-354/2009A)
was issued on 8 December 2010. Further
applications for variation of environmental permit (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/2012/07,
Gammon Construction Limited (GCL) is commissioned by the Highways Department (HyD) to undertake the design and construction of the
Southern Connection Viaduct Section of TM-CLKL (“the Contract”) 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). ENVIRON Hong
Kong Ltd. was employed by HyD as the Independent
Environmental Checker (IEC) and Environmental Project Office (ENPO) in
accordance with Environmental Permit No. EP-354/2009/A.
The
construction phase of the Contract commenced on 31 October 2013 and will be
tentatively be completed by 2018. The
impact monitoring phase of the EM&A programme,
including air quality, noise, water quality and marine ecological monitoring as
well environmental site inspections, commenced on 31 October 2013.
The
general layout plan of the Contract components is presented in Figures 1.1 & 1.2a
to l.
1.2
Scope
of Report
This is the Sixth Quarterly EM&A
Report under the Contract No. HY/2012/07 Tuen Mun – Chek
Lap Kok Link – Southern Connection Viaduct Section. This report presents a summary of the
environmental monitoring and audit works from 1 March to 31 May 2015.
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
|
|
SOR
(AECOM Asia
Company Limited)
|
Chief
Resident Engineer
|
Daniel Ip
|
3553 3800
|
2492 2057
|
|
|
Resident
Engineer
|
Kingman Chan
|
3691 2950
|
3691 2899
|
|
ENPO / IEC
(Ramboll Environ Hong
Kong Ltd.)
|
ENPO Leader
|
Y.H. Hui
|
3547 2133
|
3465 2899
|
|
IEC
|
Dr. F.C.
Tsang
|
3547 2134
|
3465 2899
|
|
Contractor
(Gammon
Construction Limited)
|
Environmental
Manager
|
Brian Kam
|
3520 0387
|
3520 0486
|
|
Environmental
Officer
|
Roy Leung
|
3520 0387
|
3520 0486
|
|
|
24-hour
Complaint Hotline
|
|
9738 4332
|
|
|
ET (ERM-HK)
|
ET Leader
|
Jovy Tam
|
2271 3113
|
2723 5660
|
The construction phase of the
Contract commenced on 31 October 2013.
The rolling construction programme for the
period of March to May 2015 is shown in Appendix
B.
As informed by the Contractor,
details of the major works carried out in this reporting period are listed
below:
March 2015
Marine
Works
· Construction
of Pile caps at Viaducts B, C, D & E;
· Marine
piling platform installation & uninstallation;
· Marine Piling
at Viaducts C & E; and
· Additional
marine ground investigation (GI) and laboratory testing.
Land-based
Works
· Construction of
pile cap superstructure of Viaduct B;
· Channel
re-construction at Area 1;
· Land Piling at
Viaducts B, C & D;
· Pre-drilling
works at Viaduct A;
· Construction of
pile cap at Viaducts B, C, D & E;
· Additional land
GI, trial pits & lab testing;
· Utility
surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 & 9SE-B/F9.
April 2015
Marine
Works
· Construction
and installation of pile caps;
· Marine
piling platform installation & uninstallation;
· Pier
construction;
· Installation of
launching gantry;
· Marine piling;
and,
· Installation of
pier head segment.
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Drainage works;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Tree survey,
felling and transplanting;
· Utility
surveys; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 & 9SE-B/F9.
May 2015
Marine
Works
· Construction
and installation of pile caps;
· Marine
piling platform installation & uninstallation;
· Pier
construction;
· Installation of
launching gantry;
· Marine piling
and
· Installation of
pier head segment.
Land-based
Works
· Construction
and installation of pile caps;
· Pier
construction;
· Drainage works;
· Re-alignment of
Cheung Tung Road;
· Land piling;
·
Pre-drilling works;
· Installation of
pier head segment;
· Additional land
GI, trial pits & lab testing;
· Tree survey,
felling and transplanting;
· Relocation
of MTRC fence; and
·
Slope work of Slopes 9SE-B/C8, 9SE-B/C9 & 9SE-B/F9.
The
locations of the construction activities are shown in Figure 1.3. The Environmental Sensitive Receivers in the
vicinity of the Project are shown in Figure 1.4.
Figure 1.3 Locations of Construction Activities in the
Reporting Period
The environmental mitigation
measures implementation schedule is presented in Appendix
C.
The EM&A programme
required environmental monitoring for air quality, noise, 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 described in the following sections,
which include:
· Monitoring
parameters;
· Monitoring
schedules for the reporting months and forthcoming months;
· Action
and Limit levels for all environmental parameters;
· Event
Action Plan;
· Results
and observations;
· Environmental
mitigation measures, as recommended in the approved EIA Report; and
· Environmental
requirement in contract documents.
2
EM&A RESULTS
The EM&A programme
required environmental monitoring for air quality, noise, 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.
The baseline air quality monitoring undertaken by the
Hong Kong – Zhuhai –Macao Bridge Hong Kong Projects (HKZMB) during October 2011
has included the two monitoring stations ASR9A and ASR9C for this project. Thus, the baseline monitoring results and
Action/ Limit Level presented in HKZMB Baseline Monitoring Report ()
are adopted for this Project.
2.1.1 Monitoring Requirements
and Equipment
In accordance with the Updated
EM&A Manual, impact 1-hour TSP monitoring was
conducted three (3) times every six (6) days while the highest dust impact was
expected. Impact 24-hour TSP monitoring
was carried out once every six (6) days.
The Action and Limit Levels of the air quality monitoring is provided in
Appendix D.
1-hour
TSP and 24-hour TSP monitoring were conducted at 2 alternative air quality
monitoring stations, ASR8A (Area 4) and ASR9 (Entrance of MTR Depot) during the
reporting period in accordance with the requirement of the Updated EM&A
Manual. The monitoring stations are
indicated in Figure 2.1 and
details are presented in Table 2.1.
High
Volume Samplers (HVSs) were used for carrying out 1-hour and 24-hour TSP
monitoring during the reporting period.
The HVS meets all requirements of the Updated EM&A Manual. Brand and model of the equipment are given in
Table 2.2.
Wind data monitoring equipment was installed at Area 4
during the reporting period for logging wind speed and wind direction. The wind sensor was setup such that it was
clear of obstructions or turbulence caused by building. The wind data monitoring equipment is
recalibrated at least once every six months.
Table 2.1 Locations of Impact Air Quality
Monitoring Stations and Monitoring Dates in this Reporting Period
|
Monitoring Station (1)
|
Monitoring Period
|
Location
|
Description
|
Parameters & Frequency
|
|
ASR8A
|
4, 10, 16,
19, 25 and 31 March 2015
6, 9, 15,
21, 27 and 30 April 2015
6, 12, 18,
21 and 27 May 2015
|
Area 4
|
On ground at
the Area 4
|
Ÿ 1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3
times per day every 6 days
Ÿ
24-hour Total
Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour
every 6 days
|
|
ASR9
|
MTR Depot
|
On the
ground nearby MTR Depot Entrance
|
Note:
(1) Air Quality Monitoring Stations ASR9A and ASR9C at Siu
Ho Wan MTRC Depot proposed in accordance with the Updated EM&A were
relocated to ASR9 and ASR8A respectively.
Table
2.2 Air Quality
Monitoring Equipment
|
Equipment
|
Brand and Model
|
|
High
Volume Sampler
(1-hour TSP and 24-hour TSP)
|
Tisch Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170)
|
|
Wind
Sensor
|
Global
Water (Wind Speed Sensor: WE550; Wind Direction Sensor: WE570)
|
|
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 are provided in Appendix D. The Event and Action plan is presented in Appendix J.
2.1.3 Monitoring Schedule for
the Reporting Quarter
The schedules for air quality monitoring in the
reporting quarter are provided in Appendix E.
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. Monitoring results are presented graphically
in Appendix F.
Detailed impact air quality monitoring results and meteorological
information were reported in the Seventeenth
to Nineteenth Monthly EM&A Report.
Table 2.3 Summary of 1-hour TSP Monitoring Results
in this Reporting Period
|
Month
|
Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
March 2015
|
ASR 8A
|
88
|
58
- 156
|
394
|
500
|
|
ASR 9
|
109
|
60
- 235
|
393
|
500
|
|
April 2015
|
ASR 8A
|
86
|
59
- 124
|
394
|
500
|
|
ASR 9
|
112
|
59
- 217
|
393
|
500
|
|
May 2015
|
ASR 8A
|
64
|
49 - 149
|
394
|
500
|
|
ASR 9
|
77
|
53 - 119
|
393
|
500
|
Table 2.4 Summary of 24-hour TSP Monitoring
Results in this Reporting Period
|
Month
|
Station
|
Average (µg/m3)
|
Range (µg/m3)
|
Action Level (µg/m3)
|
Limit Level (µg/m3)
|
|
March 2015
|
ASR 8A
|
57
|
43
– 76
|
178
|
260
|
|
ASR 9
|
77
|
54
– 101
|
178
|
260
|
|
April 2015
|
ASR 8A
|
56
|
50
- 60
|
178
|
260
|
|
|
ASR 9
|
65
|
56
– 72
|
178
|
260
|
|
May 2015
|
ASR 8A
|
48
|
43
– 52
|
178
|
260
|
|
|
ASR 9
|
56
|
46
– 71
|
178
|
260
|
The major dust sources in the reporting period include
construction activities under the Contract as well as nearby traffic emissions.
In this reporting period, a total of seventeen (17)
monitoring events were undertaken within the reporting period, in which no
Action or Limit Level exceedance for 1-hour and 24-hour TSP for air quality was
recorded during the reporting period.
The baseline noise monitoring undertaken by the Hong
Kong – Zhuhai – Macao Bridge Hong Kong Projects (HKZMB) during the period of 18
October to 1 November 2011 has included the monitoring station NSR1 for this
project. Thus, the baseline monitoring
results and Action/ Limit Level presented in HKZMB Baseline Monitoring Report ()
are adopted for this Project.
2.2.1
Monitoring Requirements and Equipment
In accordance with the Updated
EM&A Manual, impact noise monitoring should be conducted once per week during
the construction phase of the Contract.
Noise monitoring was conducted at the alternative
noise monitoring station, NSR1A (Pak Mong Village
Pavilion) during the reporting period in accordance with the requirement of
Updated EM&A Manual. Figure 2.2 shows the location of the monitoring
station. Table 2.5 describes the details of the monitoring station.
Noise monitoring was performed using sound level meter
at the designated monitoring station in the reporting quarter. The deployed sound level meter complies with
the International Electrotechnical Commission
Publications (IEC) 651:1979 (Type 1) and 804:1985 (Type 1) specifications. Acoustic calibrator was deployed to check the
sound level meter at a known sound pressure level. Brand
and model of the equipment is given in
Table 2.6.
Table 2.5 Location of Impact Noise Monitoring
Station and Monitoring Dates in this Reporting Period
|
Monitoring Station
|
Monitoring Period
|
Location
|
Parameters & Frequency
|
|
NSR1A
|
March to May
2015
|
Pak Mong Village Pavilion
|
Ÿ 30-mins
measurement at each monitoring station between 0700 and 1900 on normal
weekdays (Monday to Saturday). Leq, L10
and L90 would be recorded.
Ÿ At
least once a week
|
|
Note:
(1)
Noise Monitoring Station NSR1 at Pak Mong Village proposed in accordance with the Updated
EM&A was relocated to NSR1A.
|
Table 2.6 Noise Monitoring Equipment
|
Equipment
|
Brand and Model
|
|
Integrated
Sound Level Meter
|
Rion
NL-31
|
|
Acoustic
Calibrator
|
Rion
NC-73
|
2.2.2 Action and Limit Levels
The Action and Limit levels of the noise monitoring
are provided in Appendix D. The Event and Action plan is presented in Appendix J.
2.2.3 Monitoring Schedule for
the Reporting Quarter
The schedules for noise monitoring in the reporting
quarter are provided in Appendix E.
2.2.4 Results and
Observations
The monitoring results for noise monitoring are
summarized in Table 2.7. Monitoring results are presented graphically
in Appendix G and detailed impact noise monitoring results
are reported in the Seventeenth to Nineteenth Monthly EM&A Report.
Table 2.7 Summary of Construction Noise Monitoring
Results at NSR1A in the Reporting Period
|
Month
|
Average , dB(A), Leq (30mins)
|
Range, dB(A), Leq (30mins)
|
Limit Level, dB(A), Leq (30mins)
|
|
March 2015
|
60
|
57
– 61
|
75
|
|
April 2015
|
60
|
57
– 61
|
75
|
|
May 2015
|
60
|
57
– 61
|
75
|
A total of seventeen (17) monitoring
events were undertaken in the reporting period with no Action Level and Limit
Level exceedance recorded at the monitoring station in the reporting
period. No action is thus required to be
undertaken in accordance with the Event Action Plan presented in Appendix J.
Major noise sources during the noise
monitoring included construction activities, nearby traffic noise and aircraft
noise.
The baseline water quality monitoring undertaken by
the Hong Kong – Zhuhai – Macao Bridge Hong Kong Projects (HKZMB) between 6 and
31 October 2011 has included all monitoring stations except SR4a for the
Project. Thus, the baseline monitoring
results except for station SR4a and Action/Limit Level presented in HKZMB Baseline
Monitoring Report ()
are adopted for this Project. Baseline
water quality monitoring was conducted at station SR4a from 29 August to 24
September 2013.
2.3.1
Monitoring Requirements and Equipment
Impact water quality monitoring
was carried out to ensure that any deterioration of water quality was detected,
and that timely action was taken to rectify the situation. Impact water quality monitoring was
undertaken three days per week during the construction period at seven water
quality monitoring stations in accordance with the Updated EM&A Manual (Figure 2.3; Table 2.8).
Table 2.8 Locations of Water Quality Monitoring
Stations and the Corresponding Monitoring Requirements
|
|
Type
|
Coordinates
|
*Parameters,
unit
|
Depth
|
Frequency
|
|
|
|
Easting
|
Northing
|
|
|
|
|
IS(Mf)9
|
Impact Station (Close to HKBCF construction site)
|
813273
|
818850
|
Ÿ
Temperature(°C)
Ÿ
pH(pH unit)
Ÿ
Turbidity (NTU)
Ÿ
Water depth (m)
Ÿ
Salinity (ppt)
Ÿ
DO (mg/L and %
of
saturation)
·
SS (mg/L)
|
3 water depths:
1m
below sea
surface,
mid-depth and 1m
above sea bed. If the water depth is less than 3m,
mid-depth sampling only. If water
depth less than 6m, mid-depth may be omitted.
|
Impact monitoring: 3 days
per week, at mid-flood and mid-ebb tides during the construction period of
the Contract.
|
|
IS(Mf)16
|
Impact
Station (Close to HKBCF construction site)
|
814328
|
819497
|
|
IS8
|
Impact
Station(Close to HKBCF construction site)
|
814251
|
818412
|
|
SR4
|
Sensitive
receiver (Tai Ho Inlet)
|
814760
|
817867
|
|
SR4a
|
Sensitive
receiver
|
815247
|
818067
|
|
CS(Mf)3
|
Control
Station
|
809989
|
821117
|
|
CS(Mf)5
|
Control
Station
|
817990
|
821129
|
|
Notes:
In addition to the parameters presented
monitoring location/position, time, water depth, sampling depth, tidal stages,
weather conditions and any special phenomena or works underway nearby were
also recorded.
|
Table 2.9 summarizes the equipment
used in the impact water quality monitoring programme.
Table
2.9 Water Quality Monitoring
Equipment
|
Equipment
|
Brand and Model
|
|
DO, Temperature meter and Salinity
|
YSI Pro2030
|
|
Turbidimeter
|
HACH Model 2100Q
|
|
pH meter
|
HANNA HI8314
|
|
Positioning Equipment
|
Koden913MK2 with KBG-3 DGPS antenna
|
|
Water Depth Detector
|
Speedtech Instrument SM-5
|
|
Water Sampler
|
Kemmerer 1520 (1520-C25) 2.2L with messenger
|
2.3.2 Action & Limit
Levels
The Action and Limit Levels of
the water quality monitoring are provided in Appendix
D.
2.3.3 Monitoring Schedule for
the Reporting Quarter
The schedules for water quality monitoring in the
reporting quarter are provided in Appendix E.
2.3.4 Results and
Observations
Impact water quality monitoring was conducted at all
designated monitoring stations in the reporting period. Monitoring results are presented graphically
in Appendix H and detailed impact water quality monitoring
results were reported in the Seventeenth
to Nineteenth Monthly EM&A Reports.
In this reporting period, a total of thirty-nine (39)
monitoring events were undertaken. One
(1) Action level exceedance of depth-averaged SS during mid-ebb tide was
recorded on 19 May 2015 at monitoring station SR4a. Actions were taken in accordance with the
Event Action Plan as presented in Appendix J. The exceedance was considered not related to
this Contract upon further investigation.
Apart from the observed exceedance, there were some
results of depth-averaged turbidity and depth averaged- SS higher than the
corresponding Action Levels at the impact stations and sensitive receivers, but
the results were lower than 120% of the upstream control at the same tide of
the same day (Table 2.10). As such, these observations were not regarded
as exceedance. No action is thus
required to be undertaken for these observations in accordance with the Event
Action Plan (Appendix L).
Table 2.10 Summary of WQM Results Breaching the Action Level without
Exceedance
|
Date
|
Tide
|
Parameter
|
Station
|
|
24 March
2015
|
Mid-ebb and
mid-flood
|
SS
|
IS(Mf)16, IS(Mf)9,
IS8, SR4 and SR4a
|
|
28 March
2015
|
Mid-ebb and
mid-flood
|
SS
|
IS(Mf)16,
IS(Mf)9, IS8, SR4 and SR4a
|
|
31 March
2015
|
Mid-ebb and
mid-flood
|
SS
|
IS(Mf)16,
IS(Mf)9, IS8, SR4 and SR4a
|
|
2 April
2015
|
Mid-ebb
|
SS
|
IS(Mf)16, IS(Mf)9,
IS8, SR4 and SR4a
|
|
2 April
2015
|
Mid-flood
|
SS
|
IS(Mf)16
and IS8
|
|
7 April
2015
|
Mid-ebb
|
SS
|
IS(Mf)9,
SR4 and SR4a
|
|
7 April
2015
|
Mid-flood
|
SS
|
SR4
|
|
28 April
2015
|
Mid-ebb
|
SS
|
IS8
|
|
14 May 2015
|
Mid-flood
|
Turbidity
|
IS8 and SR4
|
|
14 May 2015
|
Mid-ebb and
mid-flood
|
SS
|
IS(Mf)16,
IS(Mf)9, IS8, SR4 and SR4a
|
|
16 May 2015
|
Mid-ebb and
mid-flood
|
SS
|
IS(Mf)16,
IS(Mf)9, IS8, SR4 and SR4a
|
|
19 May 2015
|
Mid-ebb and
mid-flood
|
SS
|
IS(Mf)16, IS(Mf)9,
IS8, SR4 and SR4a
|
|
23 May 2015
|
Mid-ebb
|
SS
|
IS(Mf)16,
IS(Mf)9, IS8 and SR4
|
|
23 May 2015
|
Mid-flood
|
SS
|
IS8 and SR4
|
2.4.1 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.
2.4.2 Monitoring Equipment
Table 2.11 summarises the equipment used for the impact dolphin
monitoring.
Table 2.11 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
|
2.4.3 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.
2.4.4 Monitoring Location
The impact dolphin monitoring was carried out in the
NEL and NWL along the line transect as depicted in Figure 2.4. The co-ordinates of all transect lines are
shown in Table 2.12 below.
Table 2.12 Impact Dolphin Monitoring Line Transect
Co-ordinates
|
Line No.
|
Easting
|
Northing
|
Line No.
|
Easting
|
Northing
|
|
1
|
Start
Point
|
804671
|
814577
|
13
|
Start
Point
|
816506
|
819480
|
|
1
|
End
Point
|
804671
|
831404
|
13
|
End
Point
|
816506
|
824859
|
|
2
|
Start
Point
|
805475
|
815457
|
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
|
820690
|
19
|
Start
Point
|
822513
|
823268
|
|
7
|
End
Point
|
810499
|
824613
|
19
|
End
Point
|
822513
|
824321
|
|
8
|
Start
Point
|
811508
|
820847
|
20
|
Start
Point
|
823477
|
823402
|
|
8
|
End
Point
|
811508
|
824254
|
20
|
End
Point
|
823477
|
824613
|
|
9
|
Start
Point
|
812516
|
820892
|
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
|
818449
|
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
|
|
|
|
|
2.4.5
Action & Limit Levels
The action and limit levels of dolphin impact
monitoring are shown in Appendix D. The Event and Action plan is presented in Appendix J.
2.4.6 Monitoring Schedule for
the Reporting Period
The dolphin monitoring schedules for the reporting
period are shown in Appendix E.
2.4.7 Results &
Observations
A total of 899.81 km of survey effort was collected,
with 97.7% of the total survey effort being conducted under favourable
weather conditions (i.e. Beaufort Sea State 3 or below with good
visibility). Among the two areas, 344.55
km and 555.26 km of survey effort were conducted in NEL and NWL survey areas
respectively. The total survey effort
conducted on primary lines was 655.32 km, while the effort on secondary lines
was 244.49 km. Survey effort conducted
on both primary and secondary lines were considered as on-effort survey
data. The survey efforts are summarized
in Appendix I.
During the six sets of monitoring surveys in March to
May 2015, a total of seven groups of twenty-five (25) Chinese White Dolphins
were sighted. Four (4) of the seven (7)
dolphin sightings were made during on-effort search. Two (2) of the four (4) on-effort sightings
were made on primary lines, while the other two were made on secondary
lines. No sighting was made in the
proximity of the Project’s alignment. In
this quarterly period, all dolphin groups were sighted in NWL, while none of
them were sighted in NEL. Summary table
of the dolphin sightings is shown in Appendix I.
Encounter rates of Chinese White Dolphins deduced from
the survey effort and on-effort sighting data from the primary transect lines
under favourable conditions (Beaufort 3 or below) in
the reporting period with the results presented in Tables 2.13 and 2.14.
Table 2.13 Individual Survey Event Encounter Rates
|
Survey Area
|
Survey
period
|
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: 4th & 11th
Mar 2015
|
0.0
|
0.0
|
|
Set 2: 17th & 26th
Mar 2015
|
0.0
|
0.0
|
|
Set 3: 8th & 10th
Apr 2015
|
0.0
|
0.0
|
|
Set 4: 17th & 22nd
Apr 2015
|
0.0
|
0.0
|
|
Set 5: 4th & 8th
May 2015
|
0.0
|
0.0
|
|
Set 6: 14th & 18th
May 2015
|
0.0
|
0.0
|
|
NWL
|
Set 1: 4th & 11th
Mar 2015
|
1.42
|
9.93
|
|
Set 2: 17th & 26th
Mar 2015
|
0.00
|
0.00
|
|
Set 3: 8th & 10th
Apr 2015
|
1.40
|
4.20
|
|
Set 4: 17th & 22nd
Apr 2015
|
0.00
|
0.00
|
|
Set 5: 4th & 8th
May 2015
|
0.00
|
0.00
|
|
Set 6: 14th & 18th
May 2015
|
0.00
|
0.00
|
Note: Dolphin
Encounter Rates are deduced from the six sets of surveys (two surveys in each set)
in the reporting period in Northeast (NEL) and Northwest Lantau (NWL)
Table 2.14 Quarterly Average Encounter Rates
|
Survey
Area
|
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)
|
|
March
- May 2015
|
September
-November 2011
|
March
- May 2015
|
September
-November 2011
|
|
Northeast
Lantau
|
0.00
|
6.00 ± 5.05
|
0.00
|
22.19 ± 26.81
|
|
Northwest
Lantau
|
0.47 ± 0.73
|
9.85 ± 5.85
|
2.36 ± 4.07
|
44.66 ± 29.85
|
Note: encounter rates deduced from the baseline
monitoring period (September – November 2011) 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 one (1) to
three (3) individuals per group in North Lantau region
during March 2015 to May 2015. 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 2.15.
Table 2.15 Comparison of Quarterly Average Encounter
Rates
|
|
Average
Dolphin Group Size
|
|
March
- May 2015
|
September
- November 2011
|
|
Overall
|
3.57 ± 2.82 (n = 7)
|
3.72 ± 3.13 (n = 66)
|
|
Northeast
Lantau
|
0.00
|
3.18 ± 2.16 (n = 17)
|
|
Northwest
Lantau
|
3.57 ± 2.82 (n = 7)
|
3.92 ± 3.40 (n = 49)
|
Whilst
one (1) Limit Level exceedance was observed for the quarterly dolphin
monitoring data between March and May 2015.
During this quarter of dolphin monitoring, no unacceptable impact from
the activities of this Contract on Chinese White Dolphins was noticeable from
the general observations.
Although the dolphins infrequently occurred along the
alignment of TMCLKL Southern Connection Viaduct in the past and during the
baseline monitoring period, it is apparent that dolphin usage has been
significantly reduced in NEL, and many individuals have shifted away from the
important habitat around the Brothers Islands.
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.
2.4.8 Marine Mammal Exclusion
Zone Monitoring
Daily
marine mammal exclusion zone monitoring was undertaken during the period of
marine works under this Contract.
Passive Acoustic Monitoring (PAM) was also implemented for the detection
of marine mammal when marine works were carried out outside the daylight hours
under this Contract. No sighting of the
Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) was recorded in
the monitoring period during the exclusion zone monitoring.
2.5
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.
Thirteen (13) site inspections were carried out in the reporting quarter
on 4, 11, 19 and 26 March 2015; 2, 9, 15, 22 and 30 April 2015; 8, 13, 20 and
28 May 2015.
Key observations during the site inspections in this
reporting period are summarized in Table
2.16.
Table 2.16 Specific Observations Identified during
the Weekly Site Inspection in this Reporting Period
|
Inspection Date
|
Location & Environmental Observations
|
Recommendations/ Remarks
|
|
4 March 2015
|
Pier E12
·
The updated dumping permit was not displayed.
·
The checklist for wet sep was not displayed.
·
The label of sediment at barge Kin Yip was not well displayed.
Pier B1
·
An air compressor was not placed on decoupling pad.
|
Pier E12
·
Dumping permit, checklist for wet sep and sediment label should be
well displayed.
Pier B1
·
The air compressor should be placed on decoupling
pad.
|
|
11 March
2015
|
Area 1
·
A slope close to drainage was partially unpaved.
Pier C14B
·
Refuse was found placed next to drainage.
Site Access
9B
·
An old EP was displayed.
|
Area 1
·
The unpaved slope should be covered by tarpaulin
sheet
Pier C14B
·
Refuse or waste container should be placed away from
drainage.
Site Access
9B
·
Only the most updated permit should be displayed.
|
|
19 March
2015
|
Seafront
·
Refuse was found disposed improperly.
·
Chemical containers were placed without drip tray.
Pier ACD1
·
Some chemical containers were not placed in drip
tray.
|
Seafront
·
Refuse should be cleaned up regularly.
·
Chemical containers should be placed in drip tray.
Pier ACD1
·
Chemical containers should be placed in drip tray.
|
|
26 March
2015
|
Pak Mong
·
Soil stockpile was not covered.
Barge Gammon
38 (next to Pier E7)
·
An air compressor was not placed on acoustic
decoupling pad.
|
Pak Mong
·
Soil stockpile should be covered by tarpaulin sheet
or watered.
Barge Gammon
38 (next to Pier E7)
·
Air compressor on marine platform should be placed
on acoustic decoupling pad.
|
|
2 April 2015
|
Dockyard
near Area 23
·
Drip trays were not plugged.
Area 1
·
Soil stockpile was not covered.
|
Dockyard
near Area 23
·
Drip trays should be plugged.
Area 1
·
Soil stockpile should be covered by tarpaulin sheet
or watered to avoid dust emission.
|
|
9 April 2015
|
Pier E13AB
·
The updated checklist for wetsep
was not displayed.
Pier E9
·
A generator was not placed on acoustic decoupling
pad.
|
Pier E13AB
·
The updated checklist should be displayed at the wetsep.
Pier E9
·
Operating generators on marine platform should be
placed on acoustic decoupling pad.
|
|
15 April
2015
|
Slope B/F9
·
The exposed area was partially dry.
Pier B14
·
The updated EP was not displayed.
Pier D12
·
The updated EP was not displayed.
·
A drip tray for generator was not plugged.
|
Slope B/F9
·
Watering was applied immediately.
Pier B14
·
The updated EP should be displayed.
Pier D12
·
The updated EP should be displayed.
·
The drip tray should be plugged.
|
|
22 April
2015
|
Seafront
·
Some chemical containers were not placed in drip
trip.
Pier D3
·
Gutter was not properly installed.
Pier E11
·
A generator was not placed on acoustic decoupling
pad.
|
Seafront
·
Chemical containers should be placed in drip trip.
Pier D3
·
Gutter should be properly installed.
Pier E11
·
Generator on marine platform should be placed on
acoustic decoupling pad.
|
|
30 April
2015
|
Pier ACD1
·
A drip tray for generator was placed without
acoustic decoupling pad and containing stagnant water.
·
A drip tray for generator was not plugged.
|
Pier ACD1
·
Acoustic decoupling pad should be provided and
stagnant water should be removed.
·
A drip tray for generator should be plugged.
|
|
8 May 2015
|
Area 1
·
Some chemical containers were not placed in drip tray.
·
Soil stockpile near drainage was not well covered.
Site Access
4A
·
Chemical waste storage was not secured properly.
Pier D14B
·
Refuse was accumulated in drainage.
Pier D10
·
Checklist for wet sep was not displayed.
|
Area 1
·
Chemical containers should be placed in drip tray.
·
Soil stockpile should be well covered.
Site Access
4A
·
Chemical waste storage should be secured as
appropriate.
Pier D14B
·
Refuse in drainage should be cleaned up.
Pier D10
·
Checklist for wet sep should be displayed.
|
|
13 May 2015
|
Seafront
·
Stagnant water was accumulated in drainage.
·
Stagnant water was accumulated in a drip tray for generator.
Gammon 39
(Pier E1)
·
Excessive soil was accumulated on barge.
|
Seafront
·
Stagnant water in drainage and drip tray should be
regularly cleaned up regularly.
Gammon 39
(Pier E1)
·
Excessive soil on barge should be cleaned up
regularly.
|
|
20 May 2015
|
Slope B/C8
·
Tarpaulin sheet for rock drilling was not well
covered.
Slope B/C9
·
Tarpaulin sheet for cement loading station was not
well covered.
|
Slope B/C8
& B/C9
·
Tarpaulin sheet for rock drilling and cement loading
station should be well covered.
|
|
28 May 2015
|
Pier E6
·
Excessive soil was accumulated in gutter and the
gutter was not properly installed..
|
Pier E6
·
Gutter should be cleaned up regularly and properly
installed.
|
The Contractor has rectified all of the observations
identified during environmental site inspections in the reporting period.
The Contractor has 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), imported fill, recyclable
materials and marine sediments (Categories L & M). Reference has been made to the waste flow
table prepared by the Contractor (Appendix K). The quantities of different types of wastes
are summarized in Table 2.17.
Table 2.17 Quantities of Different Waste Generated in
the Reporting Period
|
Month / Year
|
Inert Construction Waste (a)
(m3)
|
Imported Fill (m3)
|
Inert Construction Waste
Re-used
(m3)
|
Non-inert Construction Waste (b)
(kg)
|
Recyclable Materials (c) (kg)
|
Chemical Wastes (kg)
|
Marine Sediment (m3)
|
|
|
Category L
|
Category M
|
|
|
March 2015
|
9,600
|
77
|
473
|
120,940
|
203
|
0
|
618
|
222
|
|
April 2015
|
7,694
|
32
|
2,261
|
133,630
|
105
|
0
|
0
|
0
|
|
May 2015
|
8,091
|
0
|
653
|
107,920
|
42
|
0
|
550
|
0
|
|
Total
|
25,385
|
109
|
3,387
|
362,490
|
350
|
0
|
1,168
|
222
|
|
|
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.
2.7
Environmental
Licenses and Permits
The status of environmental licensing and permit is
summarized in Table 2.18 below.
Table 2.18 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
|
15-Mar-15
|
N/A
|
HyD
|
Tuen Mun-
Chek Lap Kok Link
|
|
Chemical Waste Producer
Registration
|
5213-951-G2380-17
|
12-Jun-14
|
NA
|
GCL
|
Viaducts A, B, C, D & E
|
|
Chemical Waste Producer
Registration
|
5213-961-G2380-13
|
10-Oct-13
|
NA
|
GCL
|
Area1 adjacent to Cheung Ting
Road, Siu Ho Wan
|
|
Chemical Waste Producer
Registration
|
5213-961-G2380-14
|
10-Oct-13
|
NA
|
GCL
|
Area 2 adjacent to Cheung Tung
Road, Pak Mong Village
|
|
Chemical Waste Producer
Registration
|
5213-974-G2588-03
|
04-Nov-13
|
NA
|
GCL
|
WA5 adjacent to Cheung Tung
Road, Yan O
|
|
Construction Dust Notification
|
361571
|
05-Jul-13
|
NA
|
GCL
|
NA
|
|
Construction Dust Notification
|
362093
|
17-Jul-13
|
NA
|
GCL
|
For Area 23
|
|
Construction Noise Permit for
night works and works in general holidays
|
GW-RS0078-15
|
28-Jan-15
|
29-Jul-15
|
GCL
|
For Plant mobilization using
tractor with trailer
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0137-15
|
12-Feb-15
|
15-Aug-15
|
GCL
|
Pre-casted
pile cap shell installation at E10-E13
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0212-15
|
02-Mar-15
|
04-Jun-15
|
GCL
|
Pier
A8A9 Safety Fence Erection
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0225-15
|
13-Mar-15
|
12-May-15
|
GCL
|
TTA
Case 009 Ch.2.1E-4.2E
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0266-15
|
20-Mar-15
|
30-Apr-15
|
GCL
|
B8 Pier Head Segment Erection and Formwork
Installation
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0307-15
|
27-Mar-15
|
27-Sep-15
|
GCL
|
For
Load unload at NLH near Viaduct D
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0326-15
|
30-Mar-15
|
31-May-15
|
GCL
|
B9-B16
Pier Head Segments Erection
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0470-14
|
29-Apr-15
|
28-Oct-15
|
GCL
|
For
Broad Permit
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0489-15
|
08-May-15
|
07-Aug-15
|
GCL
|
B8
Pier Head Temp Works Lifting
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS0491-15
|
08-May-15
|
30-Jun-15
|
GCL
|
TTA
Case 009 Ch.2.1E-4.2E
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1032-14
|
27-Mar-15
|
27-Sep-15
|
GCL
|
For Load unload at NLH near Viaduct D
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1225-14
|
31-Oct-14
|
02-May-15
|
GCL
|
For Broad Permit
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RS1406-15
|
30-Mar-15
|
31-May-15
|
GCL
|
B9-B16 Pier Head Segments Erection
|
|
Construction
Noise Permit for night works and works in general holidays
|
GW-RW0093-15
|
26-Feb-15
|
26-Aug-15
|
GCL
|
General
works at WA5
|
|
Construction
Noise Permit
|
Nil
|
N/A
|
N/A
|
GCL
|
For Piling Works
|
|
Construction Waste Disposal
Account
|
7017735
|
10-Jul-13
|
NA
|
GCL
|
NA
|
|
Construction Waste Disposal
Account
|
7019470
|
03-Mar-14
|
NA
|
GCL
|
Vessel CHIT Account
|
|
Effluent Discharge License
|
WT00019017-2014
|
13-May-14
|
31-May-19
|
GCL
|
Marine Portion
|
|
Effluent Discharge License
|
WT00019018-2014
|
13-May-14
|
31-May-19
|
GCL
|
Land Portion
|
|
Marine Dumping Permit
|
EP/MD/15-248
|
27
Mar 2015
|
26
Apr 2015
|
GCL
|
For dumping Type I (Dedicated
Site) and Type II sediment
|
|
Marine Dumping Permit
|
EP/MD/15-203
|
28
Jan 2015
|
27
Jul 2015
|
GCL
|
For dumping Type I sediment
|
|
Marine Dumping Permit
|
EP/MD/16-002
|
17
Apr 2015
|
26
May 2015
|
GCL
|
For dumping Type I (Dedicated
Site) and Type II sediment
|
|
Marine Dumping Permit
|
EP/MD/16-020
|
22
May 2015
|
26
Jun 2015
|
GCL
|
For dumping Type I (Dedicated
Site) and Type II sediment
|
|
Marine Dumping Permit
|
EP/MD/15-257
|
2
Apr 2015
|
7
Oct 2015
|
GCL
|
For dumping Type I sediment
|
|
|
|
|
|
|
|
|
|
|
|
|
|
In response to the site audit
findings, the Contractor has carried out corrective actions.
A summary of the Environmental
Mitigation and Enhancement Measure Implementation Schedules (EMIS) is presented
in Appendix C. The necessary mitigation measures were
implemented properly for this Contract.
Results
for 1-hour TSP, 24-hour TSP and construction noise complied with the Action/
Limit levels in the reporting period.
One (1) Action level exceedance of depth-averaged SS
during mid-ebb tide was recorded on 19 May 2015 at monitoring station
SR4a. Actions were taken in accordance
with the Event Action Plan as presented in Appendix J. The exceedance was considered not related to
this Contract upon further investigation.
The
construction impact on depth-averaged SS was assessed by comparing the quarterly
mean values of depth-averaged SS with the relevant ambient mean values. Except for IS(Mf)9
during mid-flood tide, results showed that the quarterly means of
depth-averaged SS at all sampling stations during both mid-ebb and mid-flood
tides were higher than the corresponding ambient means (Table 2.19). One-way ANOVA
was conducted to examine whether there is significant difference of
depth-averaged SS between ambient mean and quarterly mean. Apart from IS(Mf)16 (F1,68 = 2.5, p
= 0.12) during mid-ebb tide, CS(Mf)3 (F1,71
= 0.9, p = 0.35), CS(Mf)5 (F1,73 = 2.6, p = 0.11) and IS8 (F1,61 = 0.4, p
= 0.54) during mid-flood tide, statistically significant (p < 0.05) difference was detected for depth-averaged SS between
ambient mean and quarterly mean at the other monitoring stations. The observed difference is due to the highly
variable SS results at the corresponding upstream control stations in the
reporting period, which is considered as natural fluctuation in the western
waters of Hong Kong. The ET will monitor
the trend of depth-averaged SS in the upcoming quarters to determine whether
there is any change in water quality associated with this Project and further
mitigation measures will be recommended if deemed necessary.
Table 2.19 Comparison between Quarterly Mean and Ambient
Mean Values of Depth-averaged Suspended Solids
|
Station
|
Baseline
Mean
|
Ambient
Mean (a)
|
Quarterly Mean (March 2015 to
May 2015)
|
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
Mid-ebb
|
Mid-flood
|
|
CS(Mf)3
|
9.2
|
12.8
|
12.0
|
16.6
|
19.9
|
19.2
|
|
CS(Mf)5
|
9.2
|
11.5
|
11.9
|
14.9
|
19.0
|
18.5
|
|
SR4
|
10.3
|
12.3
|
13.4
|
16.0
|
18.9
|
18.7
|
|
SR4a
|
9.1
|
9.8
|
11.9
|
12.7
|
18.4
|
18.0
|
|
IS8
|
11.3
|
13.5
|
14.6
|
17.6
|
19.2
|
19.0
|
|
IS(Mf)9
|
10.9
|
14.3
|
14.2
|
18.5
|
19.1
|
18.5
|
|
IS(Mf)16
|
11.4
|
10.3
|
14.8
|
13.4
|
18.9
|
18.5
|
|
Notes:
|
|
(a) Ambient mean value is defined as a 30% increase
of the baseline mean value
|
One (1) Limit Level exceedance was recorded for impact
dolphin monitoring in this reporting quarter.
Following the review of the monitoring data and marine works details as per
the procedure stipulated in the Event and Action Plan of the Updated EM&A
Manual, there is no evidence showing that the sources of impact directly
related to the construction works under this Contract that may have affected
the dolphin usage in the North Lantau region.
Investigation findings were detailed in Appendix L.
The
Environmental Complaint Handling Procedure is provided in Figure 2.5.
There
was no complaint, notification of summons or successful prosecution recorded in
the reporting period. Statistics on
complaint, notification of summons of successful prosecution are summarized in Appendix L.
3
Future Key Issues
As informed by the Contractor, the
major works for the Contract in the coming quarter are summarized below:
June 2015
Marine
Works
·
Construction and installation of pile caps;
·
Uninstallation of marine piling platform;
·
Pile cap installation;
·
Pier construction;
·
Launching gantry assembly;
·
Marine piling and
·
Installation of pier head segment
Land-based
Works
·
Construction and installation of pile caps;
·
Pier construction;
·
Pile cap installation;
·
Re-alignment of Cheung Tung Road;
·
Land piling;
·
Pre-drilling works;
·
Installation of pier head segment;
·
Additional land GI, trial pits & lab testing;
·
Relocation of MTRC fence; and
·
Slope work of Slopes 9SE-B/C9 and 9SE-B/F85
July 2015
Marine
Works
·
Construction and installation of pile caps;
·
Uninstallation of marine piling platform;
·
Pile cap installation;
·
Pier construction;
·
Launching gantry assembly;
·
Marine piling; and,
·
Installation of pier head segment
Land-based
Works
·
Predrilling at Viaduct F;
·
Construction and installation of pile caps;
·
Pier construction;
·
Pile cap installation;
·
Re-alignment of Cheung Tung Road;
·
Land piling;
·
Pre-drilling works;
·
Installation of pier head segment;
·
Additional land GI, trial pits & lab testing;
·
Relocation of MTRC fence; and,
·
Slope work of Viaducts A & B
August 2015
Marine
Works
·
Construction and installation of pile caps;
·
Uninstallation of marine piling platform;
·
Pile cap installation;
·
Pier construction;
·
Launching gantry assembly;
·
Marine piling and
·
Installation of pier head segment
Land-based
Works
·
Predrilling at Viaduct F;
·
Construction and installation of pile caps;
·
Pier construction;
·
Pile cap installation;
·
Re-alignment of Cheung Tung Road;
·
Land piling;
·
Pre-drilling works;
·
Installation of pier head segment;
·
Additional land GI, trial pits & lab testing;
·
Relocation of MTRC fence; and
·
Slope work of Viaducts A & B.
3.2
Key
Issues for the Coming Quarter
Potential environmental impacts arising from the above
upcoming construction activities are mainly associated with air quality, noise,
marine water quality, marine ecology and waste management issues.
Impact monitoring for air quality, noise, marine water
quality and dolphin monitoring are scheduled to continue for the next reporting
period.
The monitoring programme has
been reviewed and was considered as adequate to cater for the nature of works
in progress.
4
Conclusions and
recommendations
This Sixth Quarterly EM&A Report presents the
findings of the EM&A activities undertaken during the period from 1 March
to 31 May 2015, in accordance with the Updated EM&A Manual and the
requirements of the Environmental Permit
(EP-354/2009/D).
Neither Action Level nor Limit Level exceedances were
observed for air quality and noise monitoring in this reporting period.
One (1) exceedance of Action Level for depth-averaged
SS during mid-ebb tide was recorded for water quality monitoring on 19 May
2015.
A total of seven groups of twenty-five (25) Chinese
White Dolphins were sighted during the six sets of survey from March to May 2015. Whilst one (1) Limit Level
exceedance was recorded for the quarterly dolphin monitoring data between March to May 2015,
no unacceptable impact from the activities of this Contract on Chinese White
Dolphins was noticeable from the general observations. 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.
Environmental site inspection was carried out thirteen
(13) times in the reporting period.
Recommendations on remedial actions were given to the Contractor for the
deficiencies identified during the site audits.
No
environmental complaint, summons/ prosecution were received during the
reporting period.
The monitoring programme has
been reviewed and was considered as adequate to cater for the nature of works
in progress. Change to the monitoring
programme was thus not recommended at this stage. The monitoring programme will be evaluated as
appropriate in the next reporting period.
The ET will keep track on the construction works to confirm compliance
of environmental requirements and the proper implementation of all necessary
mitigation measures.
