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TABLE OF CONTENTS
Page
EXECUTIVE SUMMARY 3
1 introduction 5
1.1 Background 5
1.2 Scope of Report 5
1.3 Contract Organization 6
1.4 Summary of Construction
Works 6
1.5 Summary of EM&A
Programme Requirements 7
2. AIR
QUALITY MONITORING 8
2.1 Monitoring Requirements 8
2.2 Monitoring Locations 8
2.3 Monitoring Schedule for
the Reporting Month 9
2.4 Results and Observations 9
3. Noise
MONITORING 10
3.1 Monitoring Requirements 10
3.2 Monitoring Locations 10
3.3 Monitoring Schedule for
the Reporting Month 10
3.4 Monitoring Results 11
4. WATER
QUALITY MONITORING 12
4.1 Monitoring Requirements 12
4.2 Monitoring Locations 12
4.3 Monitoring Schedule for
the Reporting Month 13
4.4 Results and Observations 13
5. Dolphin
monitoring 14
5.1 Monitoring Requirements 14
5.2 Monitoring Location 14
5.3 Monitoring Schedule for
the Reporting Month 15
5.4 Results and Observations 15
6. ENVIRONMENTAL
SITE INSPECTION AND AUDIT 17
6.1 Site Inspection 17
6.2 Advice on the Solid and
Liquid Waste Management Status 18
6.3 Environmental Licenses and
Permits 19
6.4 Implementation Status of
Environmental Mitigation Measures 20
6.5 Summary of Exceedances of
the Environmental Quality Performance Limit 21
6.6 Summary of Complaints,
Notification of Summons and Successful Prosecutions 21
7. FUTURE
KEY ISSUES 26
7.2 Construction Programme for
the Coming Months 26
7.3 Key Issues for the Coming
Month 27
7.4 Monitoring Schedule for
the Coming Month 27
8 ConclusionS
AND RECOMMENDATIONS 28
8.1 Conclusions 28
8.2 Recommendations 29
List of
Tables
Table 1.1
Contact Information of Key Personnel
Table 2.1
Locations of Impact Air Quality Monitoring Stations
Table 3.1
Locations of Impact Noise Monitoring Stations
Table 4.1
Impact Water Quality Monitoring Stations
Table 5.1
Impact Dolphin Monitoring Line Transect Co-ordinates (Provided by AFCD)
Table 6.1
Summary of Environmental Licensing and Permit Status
Figures
Figure
1 General Contract Layout Plan
Figure
2 Impact Air Quality and Noise
Monitoring Stations and Wind Station
Figure
3 Impact Water Quality
Monitoring Stations
Figure 4
Impact Dolphin Monitoring Line Transect Layout Map
Figure 5
Environmental Complaint Handling Procedures
List of Appendices
Appendix
A Contract 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 Summary of exceedances
Appendix
F Investigation Reports on Action Level or
Limit Level Exceedance
Appendix
G Event Action Plan
Appendix
H Monthly Summary of Waste Flow Table
Appendix
I Cumulative Statistics on
Exceedances, Complaints, Notifications of Summons and Successful Prosecutions
EXECUTIVE SUMMARY
Contract
No. HY/2010/02 – Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing
Facilities – Reclamation Works (here below, known as “the Contract”) mainly
comprises reclamation at the northeast of the Hong
Kong International Airport of an area
of about 130-hectare for the construction of an
artificial island for the development of the Hong Kong Boundary Crossing
Facilities (HKBCF), and about 19-hectare for the southern landfall of the Tuen
Mun - Chek Lap Kok Link (TMCLKL). It is a designated Project and is governed by
the current permits for the Project, i.e. the amended Environmental Permits
(EPs) issued on 11 April 2016 (EP-353/2009/K) and 13 March 2015 (EP-354/2009/D)
(for TMCLKL Southern Landfall Reclamation only).
Ove
Arup & Partners Hong Kong Limited (Arup) was appointed by Highways
Department (HyD) as the consultants for the design and construction assignment
for the Project’s reclamation works (i.e. the Engineer for the Contract).
China
Harbour Engineering Company Limited (CHEC) was awarded by HyD as the Contractor
to undertake the construction work of the Contract.
Ramboll
Environ Hong Kong Limited was employed by HyD as the Independent Environmental
Checker (IEC) and Environmental Project Office (ENPO) for the Project.
AECOM
Asia Co. Ltd. (AECOM) was appointed by CHEC to undertake the role of
Environmental Team for the Contract for carrying out the environmental
monitoring and audit (EM&A) works.
The
construction phase of the Project under the EPs was commenced on 12 March 2012.
The EM&A programme, including air quality, noise, water quality and dolphin
monitoring and environmental site inspections, was commenced on 12 March 2012.
This
report documents the findings of EM&A works conducted in the period between
1 and 31 October 2017. As informed by the Contractor, major activities in the
reporting period were:-
Marine-base
-
Maintenance of localized silt curtain
-
Outfall installation
-
Additional GI works
-
Reinstatement of seawall
Land-base
-
Maintenance works of Site Office at Works Area WA2
A summary of monitoring* and audit activities conducted
in the reporting period is listed below:
Joint Environmental site inspection
|
4 sessions
|
*monitoring works for the
Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai Macao Bridge
HKBCF – Passenger Clearance Building.
Breaches of Action and Limit Levels for Air Quality
For impact air
quality monitoring, no exceedance of 1-Hour TSP or 24-Hour TSP was recorded at
all monitoring stations by Environmental Team of Contract No. HY/2013/01 in the
reporting month.
Breaches of Action and Limit Levels for Noise
For construction noise monitoring, no exceedance was
recorded at all monitoring stations by Environmental Team of Contract No.
HY/2013/01 in the reporting month.
Breaches
of Action and Limit Levels for Water Quality
For impact water quality monitoring, 2 action level
exceedances of suspended solids were recorded at IS(Mf)11 and SR7 during flood
tide on 20 October 2017. After investigation, it was concluded that those
exceedances were unlikely to be contract related. No other exceedance was
recorded at all monitoring stations in the reporting month. For level of
exceedance, location and when exceedances were recorded, please refer to
Appendix E.
Breaches of Action and Limit Levels for Impact Dolphin Monitoring
Impact dolphin monitoring results at all transects are
reported in EM&A Report prepared for Contract No. HY/2013/01.
Complaint, Notification of Summons and Successful
Prosecution
A complaint was forwarded to us by ENPO on 27 October 2017;
the complainant complained that yellowish muddy water was discharged into the
sea from construction site location C3 of the artificial island of the Hong
Kong-Zhuhai-Macao Bridge and this has been persist for one week. After
investigation, there is no adequate information to conclude the complaint is
related to this Contract.
No notification of summons or prosecution was received in
the reporting period.
Reporting Change
No reporting change in this reporting month
Future Key Issues
Key
issues to be considered in the coming month included:
-
Site runoff should be properly collected and treated prior to discharge;
-
Regular review and maintenance of silt curtain systems, drainage systems
and desilting facilities;
-
Exposed surfaces/soil stockpiles should be properly treated to avoid
generation of silty surface run-off during rainstorm;
-
Regular review and maintenance of wheel washing facilities provided at
all site entrances/exits;
-
Conduct regular inspection of various working machineries and vessels
within works areas to avoid any dark smoke emission;
-
Suppress dust generated from work processes with use of bagged cements,
earth movements, excavation activities, exposed surfaces/soil stockpiles and
haul road traffic;
-
Quieter powered mechanical equipment should be used;
-
Provision of proper and effective noise control measures for operating
equipment and machinery on-site, such as erection of movable noise barriers or
enclosure for noisy plants;
-
Closely check and replace the sound insulation materials regularly;
-
Better scheduling of construction works to minimize noise nuisance;
-
Properly store and label oil drums and chemical containers placed on
site;
-
Proper chemicals, chemical wastes and wastes management;
-
Maintenance works should be carried out within roofed, paved and
confined areas;
-
Collection and segregation of construction waste and general refuse on
land and in the sea should be carried out properly and regularly; and
-
Proper protection and regular inspection of existing trees,
transplanted/retained trees.
-
Control night-time lighting and glare by hooding all lights.
-
Regular review and provide maintenance to dust control measures such as
sprinkler system
1
introduction
1.1 Background
1.1.1 Contract No. HY/2010/02 –
Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities –
Reclamation Works (here below, known as “the Contract”) mainly comprises
reclamation at the northeast of the Hong Kong
International Airport of an area of
about 130-hectare for the construction of an artificial
island for the development of the Hong Kong Boundary Crossing Facilities
(HKBCF), and about 19-hectare for the southern landfall of the Tuen Mun - Chek
Lap Kok Link (TMCLKL).
1.1.2 The environmental
impact assessment (EIA) reports (Hong Kong
– Zhuhai – Macao Bridge Hong Kong Boundary Crossing
Facilities – EIA Report (Register No. AEIAR-145/2009) (HKBCFEIA) and Tuen Mun –
Chek Lap Kok Link – EIA Report (Register No. AEIAR-146/2009) (TMCLKLEIA), and
their environmental monitoring and audit (EM&A) Manuals (original EM&A
Manuals), for the Project were approved by Environmental Protection Department
(EPD) in October 2009.
1.1.3 EPD subsequently
issued the Environmental Permit (EP) for HKBCF in
November 2009 (EP-353/2009) and the Variation of Environmental Permit (VEP) in
June 2010 (EP-353/2009/A), November 2010 (EP-353/2009/B),
November 2011 (EP-353/2009/C), March 2012 (EP-353/2009/D), October
2012 (EP-353/2009/E), April 2013 (EP-353/2009/F), August 2013 (EP-353/2009/G),
January 2015 (EP-353/2009/H), July 2015 (EP-353/2009/I), February 2016
(EP-353/2009/J) and April 2016 (EP-353/2009/K). Similarly, EPD issued the
Environmental Permit (EP) for TMCLKL in November 2009 (EP-354/2009) and the
Variation of Environmental Permit (VEP) in December 2010 (EP-354/2009/A),
January 2014 (EP-354/2009/B), December 2014 (EP-354/2009/C) and March 2015
(EP-354/2009/D)
1.1.4 The Project is a designated
Project and is governed by the current permits for the Project, i.e. the
amended EPs issued on 11 April 2016 (EP-353/2009/K) and 13 March 2015
(EP-354/2009/D) (for TMCLKL Southern Landfall Reclamation only).
1.1.5 A Contract Specific EM&A
Manual, which included all Contract -relation contents from the original
EM&A Manuals for the Contract, was issued in May 2012.
1.1.6 Ove Arup & Partners Hong
Kong Limited (Arup) was appointed by Highways Department (HyD) as the
consultants for the design and construction assignment for the Project’s
reclamation works (i.e. the Engineer for the Contract).
1.1.7 China Harbour Engineering
Company Limited (CHEC) was awarded by HyD as the Contractor to undertake the
construction work of the Contract.
1.1.8 Ramboll Environ Hong Kong
Limited was employed by HyD as the Independent Environmental Checker (IEC) and
Environmental Project Office (ENPO) for the Project.
1.1.9 AECOM Asia Co. Ltd. (AECOM)
was appointed by CHEC to undertake the role of Environmental Team for the
Contract for carrying out the EM&A works.
1.1.10 The construction phase of the Project under the EPs was
commenced on 12 March 2012.
1.1.11 According to the Contract Specific EM&A Manual, there is
a need of an EM&A programme including air quality, noise, water quality and
dolphin monitoring and environmental site inspections. The EM&A programme
of the Contract commenced on 12 March 2012.
1.2 Scope
of Report
1.2.1 This is the sixty-eighth
monthly EM&A Report under the Contract No.HY/2010/02 Hong Kong-Zhuhai-Macao
Bridge Hong Kong Boundary Crossing Facilities – Reclamation Works. This report
presents a summary of the environmental monitoring and audit works, list of
activities and mitigation measures proposed by the ET for the Contract in
October 2017.
1.3 Contract
Organization
1.3.1 The Contract organization structure
is shown in Appendix A. The key personnel contact names and numbers are
summarized in Table 1.1.
Table
1.1 Contact Information
of Key Personnel
Party
|
Position
|
Name
|
Telephone
|
Fax
|
Engineer’s Representative (ER)
(Ove
Arup & Partners Hong Kong Limited)
|
Chief Resident
Engineer
|
Paul Appleton
|
3698 5889
|
2698 5999
|
IEC / ENPO
(Ramboll
Environ Hong Kong Limited)
|
Independent
Environmental Checker
|
Raymond Dai
|
3465 2888
|
3465 2899
|
Environmental
Project Office Leader
|
Y. H. Hui
|
3465 2850
|
3465 2899
|
Contractor
(China
Harbour Engineering Company Limited)
|
Environmental
Officer
|
Louie Chan
|
3693 2254
|
2578 0413
|
24-hour Hotline
|
Alan C.C. Yeung
|
9448 0325
|
--
|
ET
(AECOM
Asia Company Limited)
|
ET Leader
|
Echo Leong
|
3922 9280
|
2317 7609
|
1.4 Summary
of Construction Works
1.4.1 The construction phase of the
Project under the EP commenced on 12 March 2012.
1.4.2 As informed by the
Contractor, details of the major works carried out in this reporting period are
listed below:
Marine-base
-
Maintenance of localized silt curtain
-
Outfall installation
-
Additional GI works
-
Reinstatement of seawall
Land-base
-
Maintenance works of Site Office at Works Area WA2
1.4.3 The 3-month rolling
construction programme of the Contract is shown in Appendix B.
1.4.4 The general layout plan of
the Contract site showing the detailed works areas is shown in Figure 1.
1.4.5 The environmental mitigation measures
implementation schedule are presented in Appendix C.
1.5 Summary
of EM&A Programme Requirements
1.5.1 The EM&A programme
required environmental monitoring for air quality, noise, water quality, marine
ecology and environmental site inspections for air quality, noise, water
quality, waste management, marine ecology, and landscape and visual impact. The
EM&A requirements for each parameter described in the following sections
include:-
- All monitoring parameters;
- Action and Limit levels for all environmental
parameters;
- Event / Action Plan;
- Environmental mitigation measures, as recommended in
the Project EIA reports; and
- Environmental requirement in contract documents.
2.
AIR QUALITY MONITORING
2.1 Monitoring
Requirements
2.1.1 In accordance with the
Contract Specific EM&A Manual, baseline 1-hour and 24-hour Total Suspended
Particulates (TSP) levels at 4 air quality monitoring stations were established.
Impact 1-hour TSP monitoring was conducted for at least three times every 6
days, while impact 24-hour TSP monitoring was carried out for at least once
every 6 days. The Action and Limit level of the air quality monitoring is
provided in Appendix D.
2.1.2 The air quality monitoring
works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai
Macao Bridge HKBCF – Passenger Clearance Building.
2.1.3 The monitoring requirements,
monitoring equipment, monitoring parameters, frequency and duration, monitoring
methodology, monitoring schedule and meteorological information are detailed in
the monthly EM&A Reports prepared for Contract No. HY/2013/01.
2.1.4 The ET of the Contract or
other ET of the HZMB project is required to conduct air quality monitoring at
AMS2, AMS3B and AMS7 as part of EM&A programme if these air quality
monitoring stations are no longer covered under Contract No. HY/2013/01.
2.1.5 If exceedance(s) is/are
recorded by the ET of the Contract or referred by the other ET under the HZMB
project to the contract, the ET of the Contract will carry out an investigation
and findings will be reported in the monthly EM&A Report.
2.2 Monitoring
Locations
2.2.1 Monitoring locations AMS2 and
AMS7 were set up at the proposed locations in accordance with Contract Specific
EM&A Manual. For AMS6 (Dragonair/CNAC (Group) Building), permission on
setting up and carrying out impact monitoring works was sought, however, access
to the premise has not been granted yet on this report issuing date. For
monitoring location AMS3 (Ho Yu College), as proposed in the Contract Specific
EM&A Manual, approval for carrying out impact monitoring could not be
obtained from the principal of the school. Permission on setting up and
carrying out impact monitoring works at nearby sensitive receivers, like
Caribbean Coast and Coastal Skyline, was also sought. However, approvals
for carrying out impact monitoring works within their premises were not
obtained. Impact air quality monitoring was conducted at site boundary of the
site office area in Works Area WA2 (AMS3B) respectively. Same baseline and
Action Level for air quality, as derived from the baseline monitoring data
recorded at Ho Yu College, was adopted for this alternative air quality
location.
2.2.2 It was observed that a tree
near AMS3B may affect the wind flow around the HVS located at AMS3B. With no
further comment received from IEC, the HVS at AMS3B has been relocated on 8
September 2014 to slightly more than 2 meters separation from it, measured
horizontally. Same baseline and Action Level for air quality, as derived
from the baseline monitoring data recorded at Ho Yu College, was adopted for
this alternative air quality location.
2.2.3 Reference is made to ET’s
proposal of the omission of air monitoring station (AMS 6) dated on 1 November
2012 and EPD’s letter dated on 19 November 2012 regarding the conditional
approval of the proposed omission of air monitoring station (AMS 6) for
Contract No. HY/2010/02. The aforesaid omission of Monitoring Station AMS6 is
effective since 19 November 2012.
2.2.4 The impact air quality
monitoring station AMS7A (Chu Kong Air-Sea Union Transportation Company Limited)
has been relocated to AMS7 (Hong Kong SkyCity Marriott Hotel) on 30 December
2015. The impact air quality monitoring was conducted at AMS7 (Hong Kong
SkyCity Marriott Hotel) since January 2016, action Level for air quality, as
derived from the baseline monitoring data recorded at Hong Kong SkyCity
Marriott Hotel has been adopted for this air quality monitoring location.
2.2.5 As informed by IEC/ENPO on 28
September 2017, air quality monitoring station (AMS3B) and the meteorological
station were relocated to AECOM PRE’s Office effective since 1 September 2017.
2.2.6 Figure 2 shows the locations
of monitoring stations. Table 2.1 describes the details of the monitoring
stations.
Table
2.1 Locations of Impact Air
Quality Monitoring Stations
Monitoring Station
|
Location
|
Description
|
AMS2
|
Tung Chung
Development Pier
|
Rooftop of the premise
|
AMS3B
|
Site
Boundary of Site Office
Area at
Works Area WA2
|
On ground at the area boundary
|
AMS6*
|
Dragonair/CNAC
(Group) Building
|
On ground at boundary of the premise
|
AMS7
|
Hong Kong SkyCity
Marriott Hotel
|
On ground at boundary of the premise
|
#Remarks:
Reference is made to EPD conditional approval of the omission of air monitoring
station (AMS 6) for the Contract. The omission will be effective on 19 November
2012.
2.3 Monitoring Schedule for the
Reporting Month
2.3.1 The schedule for air quality
monitoring in October 2017 is detailed in the monthly EM&A Report prepared
for Contract No. HY/2013/01.
2.4 Results
and Observations
2.4.1 The monitoring results for
1-hour TSP and 24-hour TSP are reported in the monthly EM&A Report prepared
for Contract No. HY/2013/01.
2.4.2 There was no Action and Limit
Level exceedance of 1-hour TSP and 24-hour TSP recorded by ET of Contract No.
HY/2013/01 in the reporting month.
2.4.3 The event action plan is
annexed in Appendix G.
2.4.4 Meteorological information
are reported in the monthly EM&A Reports prepared for Contract No.
HY/2013/01.
3.
Noise MONITORING
3.1 Monitoring
Requirements
3.1.1 In accordance with the
Contract Specific EM&A Manual, impact noise monitoring was conducted for at
least once per week during the construction phase of the Contract. The Action
and Limit level of the noise monitoring is provided in Appendix D.
3.1.2 The impact noise monitoring
works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai
Macao Bridge HKBCF – Passenger Clearance Building.
3.1.3 The monitoring requirements,
monitoring equipment, monitoring parameters, frequency and duration, monitoring
methodology and monitoring schedule are detailed in the monthly EM&A
Reports prepared for Contract No. HY/2013/01.
3.1.4 The ET of the Contract or
other ET of the HZMB project is required to conduct impact noise monitoring at
NMS2 and NMS3B as part of EM&A programme if these impact noise monitoring
stations are no longer covered under Contract No. HY/2013/01.
3.1.5 If exceedance(s) is/are
recorded by the ET of the Contract or referred by the other ET under the HZMB
project to the contract, the ET of the Contract will carry out an investigation
and findings will be reported in the monthly EM&A Report.
3.2 Monitoring Locations
3.2.1 As informed by IEC/ENPO on 28
September 2017, noise quality monitoring station (NMS3B) was slightly relocated
to AECOM PRE’s Office effective since 1 September 2017.
3.2.2 Monitoring locations NMS2 was
set up at the proposed locations in accordance with Contract Specific EM&A
Manual. However, for monitoring location NMS3 (Ho Yu College), as proposed in
the Contract Specific EM&A Manual, approval for carrying out impact
monitoring could not be obtained from the principal of the school. Permission
on setting up and carrying out impact monitoring works at nearby sensitive
receivers, like Caribbean Coast and Coastal Skyline, was also sought.
However, approvals for carrying out impact monitoring works within their
premises were not obtained. Impact noise monitoring was conducted at site
boundary of the site office area in Works Area WA2 (NMS3B) respectively. Same
baseline noise level (as derived from the baseline monitoring data recorded at
Ho Yu College) and Limit Level were adopted for this alternative noise
monitoring location.
3.2.3 Figure 2 shows the locations
of the monitoring stations. Table 3.1 describes the details of the monitoring
stations.
Table 3.1
Locations of Impact Noise Monitoring Stations
Monitoring Station
|
Location
|
NMS2
|
Seaview Crescent
Tower 1
|
NMS3B
|
Site Boundary of Site Office Area at Works Area WA2
|
3.3 Monitoring
Schedule for the Reporting Month
3.3.1 The schedule for construction
noise monitoring in October 2017 is detailed in the monthly EM&A Report
prepared for Contract No. HY/2013/01.
3.4 Monitoring
Results
3.4.1 The monitoring results for
construction noise are reported in the monthly EM&A Report prepared for
Contract No. HY/2013/01.
3.4.2 There was no Action and Limit
Level exceedance recorded by ET of Contract No. HY/2013/01 in the reporting
month.
3.4.3 The event action plan is
annexed in Appendix G.
4.
WATER QUALITY
MONITORING
4.1 Monitoring
Requirements
4.1.1 The impact water quality
monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong
Kong-Zhuhai Macao Bridge HKBCF – Passenger Clearance Building.
4.1.2 The monitoring requirements,
monitoring equipment, monitoring parameters, frequency and duration, monitoring
methodology and monitoring schedule are detailed in the monthly EM&A
Reports prepared for Contract No. HY/2013/01.
4.1.3 The ET of the Contract or
other ET of the HZMB project is required to conduct impact water quality
monitoring as part of EM&A programme if these monitoring stations are no
longer covered under Contract No. HY/2013/01.
4.1.4 If exceedance(s) is/are
recorded by the ET of the Contract or referred by the other ET under the HZMB
project to the contract, the ET of the Contract will carry out an investigation
and findings will be reported in the monthly EM&A Report.
4.2 Monitoring
Locations
4.2.1 In accordance with the
Contract Specific EM&A Manual, twenty-one stations (9 Impact Stations, 7
Sensitive Receiver Stations and 5 Control/Far Field Stations) were designated
for impact water quality monitoring. The nine Impact Stations (IS) were chosen
on the basis of their proximity to the reclamation and thus the greatest
potential for water quality impacts, the seven Sensitive Receiver Stations (SR)
were chosen as they are close to the key sensitive receives and the five
Control/ Far Field Stations (CS) were chosen to facilitate comparison of the
water quality of the IS stations with less influence by the Project/ ambient
water quality conditions.
4.2.2 Due to safety concern and
topographical condition of the original locations of SR4 and SR10B, alternative
impact water quality monitoring stations, naming as SR4 (N) and SR10B (N), were
adopted, which are situated in vicinity of the original impact water quality
monitoring stations (SR4 and SR10B) and could be reachable.
4.2.3 Due to marine work of the
Expansion of Hong Kong International Airport into a Three-Runway System (3RS
Project), original locations of water quality monitoring stations SR5, IS10 and
CS(Mf)3 are enclosed by works boundary of 3RS Project. Alternative impact water
quality monitoring stations, naming as SR5(N), IS10(N) and CS(Mf)3(N) was
approved in 12 May 2017 and were adopted starting from 15 May 2017 to replace
the original locations of water quality monitoring. For details and status of
the proposed changes, please refer to section 6.4.8
4.2.4 Due to substantial completion
of marine works by this Contract, scale-down of impact water quality monitoring
was approved on 7 September 2017. Ten stations (6 Impact Stations, 2 Sensitive
Receiver Stations and 2 Control/Far Field Stations) were adopted for impact
water quality monitoring effective since 8 September 2017. For details and
status of the proposed changes, please refer to section 6.4.9.
4.2.5 Same baseline and Action
Level for water quality, as derived from the baseline monitoring data recorded,
were adopted for these alternative impact water quality monitoring stations.
4.2.6 The locations of these
monitoring stations are summarized in Table 4.1 and depicted in Figure 3.
Table 4.1
Impact Water Quality Monitoring Stations
Station
|
Description
|
East
|
North
|
IS7
|
Impact Station (Close to HKBCF
construction site)
|
812244
|
818777
|
IS(Mf)9
|
Impact Station (Close to HKBCF
construction site)
|
813273
|
818850
|
IS10(N)
|
Impact Station (Close to HKBCF
construction site)
|
812942
|
820881
|
IS(Mf)11
|
Impact Station (Close to HKBCF
construction site)
|
813562
|
820716
|
IS(Mf)16
|
Impact Station (Close to HKBCF
construction site)
|
814328
|
819497
|
IS17
|
Impact Station (Close to HKBCF
construction site)
|
814539
|
820391
|
SR3
|
Sensitive receivers (San Tau
SSSI)
|
810525
|
816456
|
SR7
|
Sensitive receivers (Tai Mo Do)
|
814293
|
821431
|
CS(Mf)3(N)
|
Control Station
|
808814
|
822355
|
CS(Mf)5
|
Control Station
|
817990
|
821129
|
Remarks: Impact water quality monitoring
stations were retained after the proposal for scaling down of EM&A
programme was approved by the Authority on 7 September 2017.
4.3 Monitoring
Schedule for the Reporting Month
4.3.1 The schedule for impact water
quality monitoring in October 2017 is detailed in the monthly EM&A Report
prepared for Contract No. HY/2013/01.
4.4 Results
and Observations
4.4.1 2 action level exceedances of
suspended solids were recorded at IS(Mf)11 and SR7 during flood tide on 20
October 2017. After investigation, it was concluded that those exceedance were
unlikely related to Construction works under this Contract. No other exceedance
was recorded at monitoring stations in the reporting month. For level of
exceedance, location and when exceedances were recorded, please refer to
Appendix E.
4.4.2 After investigation, it was
concluded that the recorded exceedances of suspended solids on 20 October 2017
were unlikely related to Construction works under this Contract since photo
record on 21 & 26 October 2017 provided by the Contractor showed that
active works area was confined within silt curtain which was properly
maintained and no silt plume was observed. Only seawall construction and
outfall pipeline installation were carried out which were unlikely to cause
elevation of SS at the monitoring stations recorded in table of Appendix E.
4.4.3 The detailed Investigation
Reports No. W119 (including the causes of exceedance and recommendation for
mitigation) for Action or Limit Level Non-compliance were provided in Appendix
F.
4.4.4 No other exceedance was
recorded in the reporting month.
4.4.5 The event action plan is
annexed in Appendix G.
5.
Dolphin monitoring
5.1 Monitoring
Requirements
5.1.1 The dolphin monitoring
works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao
Bridge Hong Kong Boundary Crossing Facilities – Passenger Clearance Building.
Another ET of the HZMB project is required to conduct dolphin monitoring at the
twenty-four transects as part of EM&A programme if these transects are no longer
covered under Contract No. HY/2013/01. The dolphin monitoring should adopt
line-transect vessel survey method. The survey follows pre-set and fixed
transect lines in the two areas defined by AFCD as: Northeast Lantau survey
area; and Northwest Lantau survey area. The change of transect
lines 2, 3, 4, 5, 6 and 7 and new vessel-based transect line 24 for dolphin
monitoring have been proposed due to the marine work of a designated project -
Expansion of Hong Kong International Airport into a Three-Runway System (3RS
Project). It was justified and verified by the ET Leader and the IEC of this
Contract (Contract No. HY/2010/02) respectively on 24 March 2017 and it was
approved by EPD on 12 May 2017. The Action and Limit level of the impact
dolphin monitoring is provided in Appendix D.
5.1.2 The monitoring requirements,
monitoring equipment, monitoring parameters, frequency and duration, monitoring
methodology, monitoring schedule, meteorological information
are detailed in the monthly EM&A Reports prepared for Contract
No. HY/2013/01.
5.2 Monitoring
Location
5.2.1 The impact dolphin monitoring
is vessel-based.The survey follows pre-set and fixed transect lines in the two
areas defined by AFCD as:
5.2.2 Northeast Lantau survey area;
and
5.2.3 Northwest Lantau survey area.
5.2.4 The co-ordinates for the
transect lines and layout map have been provided by AFCD and are shown in Table
5.1 and Figure 4.
Table
5.1 Impact Dolphin
Monitoring Line Transect Co-ordinates (Provided by AFCD)
|
HK Grid System
|
Long Lat in
WGS84
|
ID
|
X
|
Y
|
Long
|
Lat
|
1
|
804671
|
815456
|
113.870287
|
22.277678
|
1
|
804671
|
831404
|
113.869975
|
22.421696
|
2
|
805476
|
820800
|
113.878079
|
22.325952
|
2
|
805476
|
826654
|
113.878079
|
22.378814
|
3
|
806464
|
821150
|
113.887615
|
22.329130
|
3
|
806464
|
822911
|
113.887550
|
22.345030
|
4
|
807518
|
821500
|
113897833
|
22.332308
|
4
|
807518
|
829230
|
113.897663
|
22.402113
|
5
|
808504
|
821850
|
113.907397
|
22.335485
|
5
|
808504
|
828602
|
113.907252
|
22.396462
|
6
|
809490
|
822150
|
113.916965
|
22.338210
|
6
|
809490
|
825352
|
113.916884
|
22.367128
|
7
|
810499
|
822000
|
113.926749
|
22.336709
|
7
|
810499
|
824613
|
113.926688
|
22.360464
|
8
|
811508
|
821123
|
113.936539
|
22.328966
|
8
|
811508
|
824254
|
113.936486
|
22.357241
|
9
|
812516
|
821303
|
113.946320
|
22.330606
|
9
|
812516
|
824254
|
113.946279
|
22.357255
|
10
|
813525
|
820827
|
113.956112
|
22.326321
|
10
|
813525
|
824657
|
113.956066
|
22.360908
|
11
|
814556
|
818853
|
113.966155
|
22.304858
|
11
|
814556
|
820992
|
113.966125
|
22.327820
|
12
|
815542
|
818807
|
113.975726
|
22.308109
|
12
|
815542
|
824882
|
113.975647
|
22.362962
|
13
|
816506
|
819480
|
113.985072
|
22.314192
|
13
|
816506
|
824859
|
113.985005
|
22.362771
|
14
|
817537
|
820220
|
113.995070
|
22.320883
|
14
|
817537
|
824613
|
113.995018
|
22.360556
|
15
|
818568
|
820735
|
114.005071
|
22.325550
|
15
|
818568
|
824433
|
114.005030
|
22.358947
|
16
|
819532
|
821420
|
114.014420
|
22.331747
|
16
|
819532
|
824209
|
114.014390
|
22.356933
|
17
|
820451
|
822125
|
114.023333
|
22.338117
|
17
|
820451
|
823671
|
114.023317
|
22.352084
|
18
|
821504
|
822371
|
114.033556
|
22.340353
|
18
|
821504
|
823761
|
114.033544
|
22.352903
|
19
|
822513
|
823268
|
114.043340
|
22.348458
|
19
|
822513
|
824321
|
114.043331
|
22.357971
|
20
|
823477
|
823402
|
114.052695
|
22.349680
|
20
|
823477
|
824613
|
114.052686
|
22.360610
|
21
|
805476
|
827081
|
113.877878
|
22.382668
|
21
|
805476
|
830562
|
113.877811
|
22.414103
|
22
|
806464
|
824033
|
113.887520
|
22.355164
|
22
|
806464
|
829598
|
113.887416
|
22.405423
|
23
|
814559
|
821739
|
113.966142
|
22.334574
|
23
|
814559
|
824768
|
113.966101
|
22.361920
|
24
|
805476
|
815900
|
113.878028
|
22.281702
|
24
|
805476
|
819100
|
113.878028
|
22.310600
|
Remarks:
(a) *Due to the presence of deployed silt curtain systems at
the site boundaries of the Contract, some of the transect lines shown in Figure
5 could not be fully surveyed during the regular survey. Transect 10 is reduced
from 6.4km to approximately 3.6km in length due to the HKBCF construction site.
(b) Coordinates for transect lines
1, 2, 7, 8, 9 and 11 have
been updated in respect to the Proposal
for Alteration of Transect Line for
Dolphin Monitoring approved by EPD on 19
August 2015.
(c) Due to marine work of the Expansion of Hong Kong
International Airport into a Three-Runway System (3RS Project), original
transect lines of dolphin monitoring 2, 3, 4, 5, 6 and 7 are enclosed by works
boundary of 3RS Project. Alternative dolphin monitoring transect lines 2, 3, 4,
5, 6, 7 and 24 are adopted starting from 17 May 2017 to replace the original
transect lines.
(d) Coordinates for transect lines
2, 3, 4, 5, 6 and 7 have been updated and transect line 24 has been
adopted in respect to the Proposal for Alteration of Transect
Line of Dolphin Monitoring and Alternative Monitoring Location for Impact Water
Quality Monitoring (IWQM) Stations Due to Commencement of Third Runway Project
approved by EPD on 12 May 2017. The total transect
length for both NEL and NWL combined is reduced to approximately 99km.
5.3 Monitoring
Schedule for the Reporting Month
5.3.1
The schedule for impact dolphin monitoring in October 2017 is detailed
in the monthly EM&A Report prepared for Contract No. HY/2013/01.
5.4 Results
and Observations
5.4.1
The monitoring results for dolphin monitoring are reported
in the monthly EM&A Reports prepared for Contract No. HY/2013/01.
5.4.2 The event action plan is
annexed in Appendix G.
5.4.3 If exceedance(s) at these survey
transect(s) is/are recorded by the ET of the Contract or referred by the other
ET under the HZMB project to the Contract, the ET of the Contract will carry
out an investigation and findings will be reported in the Quarterly EM&A
Report.
6.
ENVIRONMENTAL SITE INSPECTION AND AUDIT
6.1 Site Inspection
6.1.1
Site Inspections were carried out on a weekly basis to
monitor the implementation of proper environmental pollution control and
mitigation measures for the Contract. In the reporting month, 4 site inspections were carried
out on 4, 12, 19 & 26 October 2017.
6.1.2 Particular observations
during the site inspections are described below:
Air
Quality
6.1.3 Generator (Airman SDG25)
without NRMM label was observed on jack- up barge, Fugro Kingstown. The
Contractor was reminded to check and confirm if NRMM label is required or
available for the concerned PME. (Pending for Contractor’s Confirmation)
6.1.4 Discoloured NRMM label was
observed on excavator near Portion B. The Contractor was reminded to affix
appropriate NRMM label. The Contractor subsequently affixed appropriate NRMM
label on the concerned excavator. (Closed)
Noise
6.1.5 No relevant adverse impact
was observed in the reporting month.
Water
Quality
6.1.6 No relevant adverse impact
was observed in the reporting month.
Chemical
and Waste Management
6.1.7 No relevant adverse impact
was observed in the reporting month.
Ecological
Impact
6.1.8 No relevant adverse impact
was observed in the reporting month.
Landscape
and Visual Impact
6.1.9 No relevant adverse impact
was observed in the reporting month.
Others
6.1.10 Environmental Permit was not observed on Furgo Kingstown, the
Contractor was reminded to affix valid Environmental Permit on barge for
Contract No. HY/2010/02. The Contractor subsequently provided valid
Environmental Permit on barge. (Closed)
6.2 Advice on the Solid and
Liquid Waste Management Status
6.2.1 The Contractor had registered
as a chemical waste producer for this Project. Receptacles were available for
general refuse collection and sorting.
6.2.2 As advised by the Contractor,
13m3 of others, e.g. general refuse were generated and disposed of
in the reporting period. Monthly summary of waste flow table is detailed in
Appendix H.
6.2.3 The Contractor is advised to
properly maintain on site C&D materials and wastes storage, 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 is reminded to properly maintain the site tidiness and dispose
of the wastes accumulated on site regularly and properly.
6.2.4 The Contractor is reminded
that chemical waste should be properly treated and stored temporarily in
designated chemical waste storage area on site in accordance with the Code of
Practice on the Packaging, Labeling and Storage of Chemical Wastes.
6.2.5
After checking with the Contractor, no surplus surcharge was
exported to Macau during the reporting month. The Contractor was reminded to
ensure consistency in quantities in case of
any C&D material disposed off-site
and/or no surcharge material removed off site.
6.3
Environmental Licenses and Permits
6.3.1 The environmental licenses
and permits for the Contract and valid in the reporting month is summarized in
Table 6.1.
Table 6.1
Summary of Environmental Licensing and Permit Status
Statutory Reference
|
License/ Permit
|
License or Permit
No.
|
Valid Period
|
License/ Permit
Holder
|
Remarks
|
From
|
To
|
EIAO
|
Environmental
Permit
|
EP-353/2009/K
|
11/04/2016
|
N/A
|
HyD
|
Hong Kong – Zhuhai – Macao Bridge Hong
Kong Boundary Crossing Facilities
|
EP-354/2009/D
|
13/03/2015
|
N/A
|
Tuen Mun – Chek Lap Kok Link
(TMCLKL Southern Landfall Reclamation only)
|
APCO
|
NA notification
|
--
|
30/12/2011
|
--
|
CHEC
|
Works Area WA2 and
WA3
|
APCO
|
NA notification
|
--
|
25/07/2014
|
--
|
CHEC
|
Works Area WA1
|
WDO
|
Chemical Waste
Producer Registration
|
5213-951-C1186-30
|
28/10/2015
|
N/A
|
CHEC
|
Chemical waste
produced in Contract HY/2010/02 (WA1)
|
WDO
|
Chemical Waste
Producer Registration
|
5213-951-C1186-21
|
30/3/2012
|
N/A
|
CHEC
|
Chemical waste
produced in Contract HY/2010/02 (WA2)
|
WDO
|
Chemical Waste
Producer Registration
|
5213-839-C3750-02
|
13/09/2012
|
--
|
CHEC
|
Registration as
Chemical Waste Producer at TKO 137(FB)
|
WDO
|
Billing Account for
Disposal of
Construction Waste
|
7014181
|
05/12/2011
|
N/A
|
CHEC
|
Waste disposal in
Contract HY/2010/02
|
NCO
|
Construction Noise
Permit
|
GW-RS0911-17
|
25/10/2017
|
30/03/2018
|
CHEC
|
Reclamation Works
in Contract HY/2010/02
|
6.4
Implementation Status of Environmental Mitigation Measures
6.4.1 In response to the site audit
findings, the Contractors carried out corrective actions.
6.4.2 A summary of the
Implementation Schedule of Environmental Mitigation Measures (EMIS) is
presented in Appendix C. Most of the necessary mitigation measures were
implemented properly.
6.4.3 There were minimal vessel
movement after major works has been substantially completed under this Contract
and training of marine travel route for marine vessels operator was given to
relevant staff and relevant records were kept properly, as necessary.
Nevertheless, the Contractor is reminded strictly follows the approved Regular
Marine Travel Routes plan.
6.4.4 Regarding the implementation
of dolphin monitoring and protection measures (i.e. implementation of Dolphin
Watching Plan, Dolphin Exclusion Zone and Silt Curtain integrity Check),
regular checking were conducted by the experienced MMOs within the works area
to ensure no dolphin was trapped by the enclosed silt curtain systems. Any
dolphin spotted within the enclosed silt curtain systems was reported and
recorded. Relevant procedures were followed and measures were well implemented.
Silt curtain systems were also inspected timely in accordance to the submitted
plan. All inspection records were kept properly.
6.4.5 Acoustic decoupling measures
on noisy plants on construction vessels were checked regularly and the
Contractor was reminded to ensure provision of ongoing maintenance to noisy
plants and to carry out improvement work once insufficient acoustic decoupling
measures were found.
6.4.6 Frequency of watering per day
on exposed soil was checked; with reference to the record provided by the
Contract, watering was conducted at least 8 times per day on reclaimed land.
The frequency of watering is the mainly refer to water truck. Sprinklers are
only served to strengthen dust control measure for busy traffic at the entrance
of Portion D. As informed by the Contractor, during the mal-function period of
sprinkler, water truck will enhance watering at such area. The Contractor was
reminded to ensure provision of watering of at least 8 times per day on all
exposed soil within the Contract site and associated works areas throughout the
construction phase.
6.4.7 After review, no floating
grout production was in operation at any time in September 2017 for
Contract No.HY/2010/02. Condition 3.26A of EP-353/2009/K for Contract
No.HY/2010/02 is complied with during the reporting month.
6.4.8 Due to the commencement of
marine work of the Expansion of Hong Kong International Airport into
a Three-Runway System (3RS Project), a
large portion of works site boundary
will be established at the northern part of the existing airport Island.
The recent arrangement of works boundary of 3RS Project which delineates the
boundary of the designated 3RS Project (for the indicative 3RS boundary, please
refer to Figure 5). The works area of 3RS project will affect several
water quality monitoring stations and the dolphin monitoring
transect lines which are being used
for conducting monitoring under Contract No.
HY/2010/02. The EM&A Programme for the HZMB HKBCF Project will
therefore be affected. As a result, a proposal was prepared by ET in accordance
with condition 5.1 of EP-353/2009/K and condition 4.1 of EP-354/2009/D, to
relocate water quality monitoring stations from SR5, IS10, CS(Mf)3 and
alternate the transect lines of dolphin monitoring 2, 3, 4, 5, 6 and 7. A
revised proposal has been updated and sent to IEC/ENPO for their further review
on 24 March 2017 and IEC/ENPO verified the revised proposal on the same date.
The revised proposal has been sent to authority by project team for review and
approval on 3 April 2017. The authority subsequently approved the proposal on
12 May 2017.
6.4.9 Due to substantial completion
of marine works by the end of June 2017, it is anticipated that the remaining
construction works under Contract No. HY/2010/02, which include ground
investigation (GI) works, construction of temporary timber platform, removal of
jetty and reinstatement of seawall at the western section, construction of
outfall at the eastern seawall, would cause limited disturbance to water column
and not to the seabed. In view of this, a proposal for change of EM&A
programme/requirements was prepared by ET in accordance with Condition 5.1 of
EP-353/2009/K and Condition 4.1 of EP-354/2009/D, to terminate water quality
monitoring works at stations IS5, IS(Mf)6, IS8, SR4(N), SR5(N), SR6, SR10A,
SR10B(N), CS4, CSA and CS6, and dolphin monitoring (line-transect vessel survey
method) covering NEL and NWL when perimeter silt curtain under the Contract is
completely removed and vessel traffic numbers average 10 per month for Contract
No. HY/2010/02. A revised proposal has been updated and sent to IEC/ENPO for
their further review on 15 August 2017 and IEC/ENPO verified the revised
proposal on 16 August 2017. The revised proposal has been sent to authority by
project team for review and approval on 21 August 2017. The authority
subsequently approved the proposal on 7 September 2017.
6.4.10 The monthly EM&A programme was undertaken in accordance
with the Updated EM&A Manual for HKBCF (Version 1.0). It should be
noted that the air quality, noise, water quality and dolphin monitoring works
for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao
Bridge HKBCF – Passenger Clearance Building effective since 1 September 2017.
The ET of the Contract is required to conduct EM&A monitoring as part of EM&A
programme if these monitoring stations are no longer covered under Contract No.
HY/2013/01.
6.5 Summary of Exceedances of the Environmental Quality
Performance Limit
6.5.1 For impact air quality
monitoring, no exceedance of 1-Hour TSP or 24-Hour TSP was recorded at all
monitoring stations by Environmental Team of Contract No. HY/2013/01 in the
reporting month.
6.5.2 For construction noise
monitoring, no exceedance was recorded at all monitoring stations by
Environmental Team of Contract No. HY/2013/01 in the reporting month.
6.5.3 For impact water quality
monitoring, 2 action level exceedances of suspended solids were recorded at
IS(Mf)11 and SR7 during flood tide on 20 October 2017. After investigation, it
was concluded that those exceedances were unlikely to be contract related. No
other exceedance was recorded at all monitoring stations in the reporting
month. For level of exceedance, location and when exceedances were recorded,
please refer to Appendix E.
6.5.4 Impact dolphin monitoring
results at all transects are reported in EM&A Report prepared for Contract
No. HY/2013/01.
6.5.5 Environmental site inspection
was carried out 4 times in October 2017. Recommendations on remedial actions
were given to the Contractors for the deficiencies identified during the site
audits.
6.5.6 Cumulative statistics on
exceedance is provided in Appendix I.
6.6 Summary of Complaints,
Notification of Summons and Successful Prosecutions
6.6.1 A complaint was forwarded to
us by ENPO on 27 October 2017; the complainant complained that yellowish muddy
water was discharged into the sea from construction site location C3 of the
artificial island of the Hong Kong-Zhuhai-Macao Bridge and this has been
persist for one week.
6.6.1.1 Investigation actions:
-
Review the
information provided by the complainant.
-
Checking whether
there were any construction activities under Contract HY/2010/02
-
Review record of
weekly site inspections conducted by ET on 19 & 26 October 2017 and 2
November 2017.
6.6.1.2 Investigation results:
-
As confirmed with the Contractor, only seawall construction and outfall
pipeline installation was carried out in October 2017 and these activities
should not involve discharge/release of yellowish muddy water. For details of
location of active works, please refer to the layout map below.
![](TOC_files/image001.jpg)
-
Weekly site inspections were also conducted on 19 and 26 October 2017
and 2 November 2017 to check the site mitigation measures associated with the
active works, with referred to photo record taken on 19 and 26 Oct 2017 and
November 2017, they shows active works areas were confined within silt curtain
which was adequately maintained during the period and no silt plume was
observed at active works areas.
-
Photo record taken by ET on 19 October 2017 during weekly site
inspection shows that no yellowish muddy water was observed at active works
area of outfall pipeline installation.
![](TOC_files/image002.png)
-
Photo record taken by ET on 19 October 2017 during weekly site
inspection shows that no yellowish muddy water was observed at active works
area of seawall construction.
![](TOC_files/image003.png)
-
Photo record taken by ET on 26 October 2017 during weekly site
inspection shows that no yellowish muddy water was observed at active works
area of outfall pipeline installation.
![](TOC_files/image004.png)
-
Photo record taken by ET on 26 October 2017 during weekly site
inspection shows that no yellowish muddy water was observed at active works
area of seawall construction.
![](TOC_files/image005.png)
-
Photo record taken by ET on 2 November 2017 during weekly site inspection
shows that no yellowish muddy water was observed at active works area of
outfall pipeline installation.
![](TOC_files/image006.png)
-
Photo record taken by ET on 2 November 2017 during weekly site
inspection shows that no yellowish muddy water was observed at active works
area of seawall construction.
![](TOC_files/image007.png)
6.6.1.3 After investigation, there is no adequate information to
conclude the complaint is related to this Contract.
6.6.1.4 Nevertheless, the Contractor was reminded to continue to
fully and properly implement all water quality mitigation measures i.e.
wastewater from temporary site facilities should be controlled to prevent
direct discharge to surface or marine waters.
6.6.2 No notification of summons or
prosecution was received in the reporting period.
6.6.3 The Environmental Complaint
Handling Procedure is annexed in Figure 5.
6.6.4 Statistics on complaints,
notifications of summons and successful prosecutions are summarized in Appendix
I.
7.
FUTURE KEY ISSUES
7.1 Construction Programme for
the Coming Months
7.1.1 As informed by the
Contractor, the major works for the Contract in November and December 2017 will
be* as follows:
Marine-base
-
Maintenance of localized silt curtain
-
Reinstatement of seawall
-
Outfall installation
-
Additional GI Works
Land-base
-
Maintenance works of Site Office at Works Area WA2
*Construction activities in November
and December 2017 will be changed subject to works progress.
7.2 Key Issues for the Coming
Month
7.2.1 Key issues to be considered
in the coming months:-
- Site runoff should be properly collected and treated
prior to discharge;
- Regular review and maintenance of silt curtain
systems, drainage systems and desilting facilities;
- Exposed surfaces/soil stockpiles should be properly
treated to avoid generation of silty surface run-off during rainstorm;
- Regular review and maintenance of wheel washing
facilities provided at all site entrances/exits;
- Conduct regular inspection of various working
machineries and vessels within works areas to avoid any dark smoke emission;
- Suppress dust generated from work processes with use
of bagged cements, earth movements, excavation activities, exposed
surfaces/soil stockpiles and haul road traffic;
- Quieter powered mechanical equipment should be used;
- Provision of proper and effective noise control measures
for operating equipment and machinery on-site, such as erection of movable
noise barriers or enclosure for noisy plants;
-
Closely check and replace the sound
insulation materials regularly;
-
Better scheduling of construction works
to minimize noise nuisance;
- Properly store and label oil drums and chemical
containers placed on site;
- Proper chemicals, chemical wastes and wastes
management;
- Maintenance works should be carried out within roofed,
paved and confined areas;
- Collection and segregation of construction waste and
general refuse on land and in the sea should be carried out properly and
regularly; and
- Proper protection and regular inspection of existing
trees, transplanted/retained trees.
- Control night-time lighting and glare by hooding all
lights.
- Regular review and provide maintenance to dust control
measures such as sprinkler system.
7.3 Monitoring
Schedule for the Coming Month
7.3.1 The tentative schedule for
environmental monitoring of November 2017 are detailed in the monthly EM&A
Report prepared for Contract No. HY/2013/01.
8
ConclusionS AND RECOMMENDATIONS
8.1 Conclusions
8.1.1 For impact air quality monitoring,
no exceedance of 1-Hour TSP or 24-Hour TSP was recorded at all monitoring
stations by Environmental Team of Contract No. HY/2013/01 in the reporting
month.
8.1.2 For construction noise monitoring,
no exceedance was recorded at all monitoring stations by Environmental Team of
Contract No. HY/2013/01 in the reporting month.
8.1.3 For impact water quality
monitoring, 2 action level exceedances of suspended solids were recorded at
IS(Mf)11 and SR7 during flood tide on 20 October 2017. After investigation, it
was concluded that those exceedances were unlikely to be contract related. No
other exceedance was recorded at all monitoring stations in the reporting
month. For level of exceedance, location and when exceedances were recorded,
please refer to Appendix E.
8.1.4 Impact dolphin monitoring
results at all transects are reported in EM&A Report prepared for Contract
No. HY/2013/01.
8.1.5 A complaint was forwarded to
us by ENPO on 27 October 2017; the complainant complained that yellowish muddy
water was discharged into the sea from construction site location C3 of the
artificial island of the Hong Kong-Zhuhai-Macao Bridge and this has been
persist for one week. After investigation, there is no adequate information to
conclude the complaint is related to this Contract.
8.1.6 No notification of summons or
prosecution was received in the reporting period.
8.1.7
Environmental site inspection was carried out 4 times in
October 2017. Recommendations on remedial actions were given to the Contractors
for the deficiencies identified during the site audits.
8.2 Recommendations
8.2.1 According to the
environmental site inspections performed in the reporting month, the following
recommendations were provided:
Air Quality Impact
l All working plants and vessels on site
should be regularly inspected and properly maintained to avoid dark smoke
emission.
l All vehicles should be
washed to remove any dusty materials before leaving the site.
l Haul roads should be
sufficiently dampened to minimize fugitive dust generation.
l Wheel washing facilities
should be properly maintained and reviewed to ensure properly functioning.
l Temporary exposed slopes and
open stockpiles should be properly covered.
l Enclosure should be erected
for cement debagging, batching and mixing operations.
l Water spraying should be
provided to suppress fugitive dust for any dusty construction activity.
l Regular review and provide maintenance
to dust control measures such as sprinkler system.
Construction Noise
Impact
l Quieter powered mechanical
equipment should be used as far as possible.
l Noisy operations should be
oriented to a direction away from sensitive receivers as far as possible.
l Proper and effective noise
control measures for operating equipment and machinery on-site should be
provided, such as erection of movable noise barriers, enclosure for noisy
plants or enhancement works to provide sufficient acoustic decoupling
measure(s). Closely check and replace the sound insulation materials regularly
l Vessels and equipment
operating should be checked regularly and properly maintained.
l Noise Emission Label (NEL)
shall be affixed to the air compressor and hand-held breaker operating within
works area.
l Acoustic decoupling measures
should be properly implemented for all existing and incoming construction
vessels with continuous and regularly checking to ensure effective
implementation of acoustic decoupling measures.
Water Quality
Impact
l Regular review and
maintenance of silt curtain systems, drainage systems and desilting facilities
in order to make sure they are functioning effectively.
l Construction of seawall
should be completed as early as possible.
l Regular inspect and review
the loading process from barges to avoid splashing of material.
l Silt, debris and leaves
accumulated at public drains, wheel washing bays and perimeter u-channels and
desilting facilities should be cleaned up regularly.
l Silty effluent should be
treated/ desilted before discharged. Untreated effluent should be prevented
from entering public drain channel.
l Proper drainage
channels/bunds should be provided at the site boundaries to collect/intercept
the surface run-off from works areas.
l Exposed slopes and
stockpiles should be covered up properly during rainstorm.
Chemical and Waste
Management
l All types of wastes, both on
land and floating in the sea, should be collected and sorted properly and
disposed of timely and properly. They should be properly stored in designated
areas within works areas temporarily.
l All chemical containers,
batteries and oil drums should be properly stored and labelled.
l All plants and vehicles on
site should be properly maintained to prevent oil leakage. Proper measures,
like drip trays and/or bundings, should be provided for retaining leaked
oil/chemical from plants.
l All kinds of maintenance
works should be carried out within roofed, paved and confined areas.
l All drain holes of the drip
trays utilized within works areas should be properly plugged to avoid any oil
and chemical waste leakage.
l Oil stains on soil surface,
accumulated oil mixture and empty chemical containers should be cleared and
disposed of as chemical waste.
l Regular review should be
conducted for working barges and patrol boats to ensure sufficient measures and
spill control kits were provided on working barges and patrol boats to avoid
any spreading of leaked oil/chemicals.
Landscape and
Visual Impact
l All existing,
retained/transplanted trees at the works areas should be properly fenced off
and regularly inspected.
l Control night-time lighting
and glare by hooding all lights.