TABLE OF CONTENTS
Page
1.4 Summary
of Construction Works
1.5 Summary
of EM&A Programme Requirements
2.4 Monitoring
Parameters, Frequency and Duration
2.6 Monitoring
Schedule for the Reporting Month
3.4 Monitoring
Parameters, Frequency and Duration
3.6 Monitoring
Schedule for the Reporting Month
4.3 Monitoring
Parameters, Frequency and Duration
4.6 Monitoring
Schedule for the Reporting Month
5.3 Monitoring
Frequency and Conditions
5.4 Monitoring
Methodology and Location
5.6 Monitoring
Schedule for the Reporting Month
6 ENVIRONMENTAL SITE INSPECTION AND AUDIT
6.2 Advice
on the Solid and Liquid Waste Management Status
6.3 Environmental
Licenses and Permits
6.4 Implementation
Status of Environmental Mitigation Measures
6.5 Summary
of Exceedances of the Environmental Quality Performance Limit
6.6 Summary
of Complaints, Notification of Summons and Successful Prosecutions
7.2 Construction
Programme for the Coming Months
7.3 Key
Issues for the Coming Month
7.4 Monitoring
Schedule for the Coming Month
8 ConclusionS AND RECOMMENDATIONS
List of Tables
Table 1.1 Contact Information
of Key Personnel
Table 2.1 Air Quality Monitoring Equipment
Table 2.2 Locations of Impact Air Quality Monitoring Stations
Table 2.3 Air Quality Monitoring Parameters, Frequency and Duration
Table 2.4 Summary of 1-hour TSP Monitoring Results in the Reporting
Period
Table 2.5 Summary of 24-hour TSP Monitoring Results in the Reporting
Period
Table 3.1 Noise Monitoring Equipment
Table 3.2 Locations of Impact Noise Monitoring Stations
Table 3.3 Noise Monitoring Parameters, Frequency and Duration
Table 3.4 Summary of Construction Noise Monitoring Results in the
Reporting Period
Table 4.1 Water Quality Monitoring Equipment
Table 4.2 Impact Water Quality Monitoring Parameters and Frequency
Table 4.3 Impact Water Quality Monitoring Stations
Table 4.4 Laboratory Analysis for Suspended Solids
Table 4.5 Summary of Water Quality Exceedances
Table 5.1 Dolphin Monitoring Equipment
Table 5.2 Impact Dolphin Monitoring Line Transect Co-ordinates
(Provided by AFCD)
Table 5.3 Impact Dolphin Monitoring Survey Effort Summary, Effort by Area and
Beaufort Sea State
Table 5.4 Impact Dolphin Monitoring Survey Details September 2015
Table 5.5 The Encounter Rate of Number of Dolphin Sightings & Total
Number of Dolphins per Area^
Table 6.1 Summary of Environmental Licensing and Permit Status
Figures
Figure 1 General
Project 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 Impact
Dolphin Monitoring Survey Efforts and Sightings in September
2015
Figure 6 Environmental
Complaint Handling Procedures
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 Calibration Certificates of
Monitoring Equipments
Appendix F EM&A Monitoring Schedules
Appendix
G Impact Air
Quality Monitoring Results and their Graphical Presentation
Appendix H Meteorological Data for Monitoring
Periods on Monitoring Dates in September 2015
Appendix
I Impact
Construction Noise Monitoring Results and their Graphical Presentation
Appendix
J Impact
Water Quality Monitoring Results and
their Graphical Presentation
Appendix
K Impact
Dolphin Monitoring Survey Sighting Summary
Appendix M Monthly Summary of Waste Flow Table
Contract No. HY/2010/02 ¡V Hong
Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Reclamation
Work (here below, known as ¡§the Project¡¨) 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 17 July 2015 (EP-353/2009/I) 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 Project).
China Harbour
Engineering Company Limited (CHEC) was awarded by HyD
as the Contractor to undertake the construction work of the Project.
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 Project
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 and will be tentatively completed
by early Year 2016. 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 30
September 2015. As informed by the Contractor, major
activities in the reporting period were:-
Marine-base
-
Rock fill
-
Marine fill
-
Maintenance of silt curtain & silt screen
at sea water intake of HKIA
Land-base
-
Deep Cement Mixing
-
Removal of Temporary Seawall
-
Vertical Band Drains
-
Installations of Precast Culverts except
sloping outfalls
-
Maintenance works of Site Office at Works
Area WA2
-
Maintenance works of Public Works
Regional Laboratory at Works Area WA3
-
Maintenance of Temporary Marine Access at
Works Area WA2
A summary of
monitoring and audit activities conducted in the reporting period is listed
below:
24-hour Total
Suspended Particulates (TSP) monitoring |
6 sessions |
1-hour
TSP monitoring |
6 sessions |
Noise monitoring |
5 sessions |
Impact
water quality monitoring |
13 sessions |
Impact
dolphin monitoring |
2 surveys |
Joint Environmental
site inspection |
4 sessions |
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 in the reporting month.
Breaches of Action and Limit Levels for Noise
For construction noise, no exceedance was recorded at all monitoring
stations in the reporting month.
Breaches of Action and Limit Levels
for Water Quality
For water quality, one (1) Action Level
Exceedance of SS at SR7 during flood tide was recorded on 30 September 2015.
After investigation, there is no adequate information to conclude the recorded
exceedance is related to this Contract. No Action and Limit Level exceedance
was recorded on other monitoring date in the reporting month.
Impact Dolphin Monitoring
A total of two sightings were made, both ¡§on
effort¡¨. Both sightings were
recorded on the 7 September 2015. Sighting details are summarised
and plotted in Appendix K and Figure 5c, respectively. The first group sighted
on the 7 September 2015 comprised one individual and the second, four
individuals.
Behaviour: On the 7
September 2015, the behaviour of the first sighting
made was noted as travelling and the second group was engaged in multiple
activities; feeding, surface active and travelling. No calves were sighted
during impact surveys in September 2015. Locations of sighting with different behaviour are mapped in Figure 5d.
Complaint,
Notification of Summons and Successful Prosecution
No notification of
complaint, summons or prosecution was received in the reporting period
Reporting Change
There was
no reporting change required in the reporting period.
Future Key
Issues
Key issues
to be considered in the coming month included:
-
Site runoff should be properly collected and
treated prior to discharge;
-
Minimize loss of sediment from filling works;
-
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.
1.1.1
Contract
No. HY/2010/02 ¡V Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing
Facilities ¡V Reclamation Work (here below, known as ¡§the Project¡¨) 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 ¡V
Zhuhai ¡V Macao Bridge Hong Kong Boundary Crossing
Facilities ¡V EIA Report (Register No. AEIAR-145/2009) (HKBCFEIA) and Tuen Mun ¡V Chek
Lap Kok Link ¡V 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) and July 2015
(EP-353/2009/I). 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 17 July 2015 (EP-353/2009/I) and 13
March 2015 (EP-354/2009/D) (for TMCLKL Southern Landfall Reclamation only).
1.1.5
A
Project Specific EM&A Manual, which included all project-relation contents
from the original EM&A Manuals for the Project, 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
Project).
1.1.7
China Harbour Engineering Company Limited (CHEC) was awarded by HyD as the Contractor to undertake the construction work of
the Project.
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 Project 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
and will be tentatively completed by early Year 2016.
1.1.11
According
to the Project 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 Project commenced on 12 March 2012.
1.2.1 This is the forty-third monthly EM&A Report under the Contract No.HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong
Boundary Crossing Facilities ¡V 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 Project in September 2015.
1.3.1
The
project 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 |
Roger Marechal (Effective between 1 ¡V 15
September 2015) |
3698 5700 |
2698 5999 |
Engineer¡¦s
Representative (ER) (Ove Arup & Partners Hong Kong Limited) |
Chief
Resident Engineer |
Paul Appleton (Effective 16 September 2015
onward) |
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 |
3547 2133 |
3465 2899 |
|
Contractor (China Harbour Engineering Company Limited) |
Environmental
Officer |
Louie Chan |
36932254 |
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
-
Rock fill
-
Marine fill
-
Maintenance of silt curtain & silt screen
at sea water intake of HKIA
Land-base
-
Surcharge removal & laying
-
Deep Cement Mixing
-
Removal of Temporary Seawall
-
Vertical Band Drains
-
Installations of Precast Culverts except
sloping outfalls
-
Maintenance works of Site Office at Works
Area WA2
-
Maintenance works of Public Works
Regional Laboratory at Works Area WA3
-
Maintenance of Temporary Marine Access at
Works Area WA2
1.4.3
The 3-month rolling construction programme of the Project is shown in Appendix B.
1.4.4
The general layout plan of the Project 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;
-
Monitoring
schedules for the reporting month and forthcoming month;
-
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.
2.1.1
In accordance with the Project 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.
2.2.1
24-hour TSP air quality monitoring was performed
using High Volume Sampler (HVS) located at each designated monitoring station.
The HVS meets all the requirements of the Project Specific EM&A
Manual. Portable direct reading
dust meters were used to carry out the 1-hour TSP monitoring. Brand and model of the equipment is
given in Table 2.1.
Table 2.1 Air
Quality Monitoring Equipment
Equipment |
Brand and Model |
Portable direct reading dust meter (1-hour TSP) |
Sibata Digital
Dust Monitor (Model No. LD-3 and LD-3B) |
High Volume Sampler |
Tisch
Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High
Volume Air Sampler (Model No. TE-5170) |
2.3.1
Monitoring locations AMS2 and AMS7 were set up at
the proposed locations in accordance with Project 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 Project 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.
2.3.2
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.
2.3.3
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.
2.3.4 Reference is made to ET¡¦s proposal of relocation of air quality monitoring station (AMS7) dated on 2 February 2015, with no further comment received from IEC on 2 February 2015 and no objection received from EPD on 5 February 2015, the impact air quality monitoring station AMS7 (Hong Kong SkyCity Marriott Hotel) has been relocated to AMS7A (Chu Kong Air-Sea Union Transportation Company Limited) on 3 February 2015. Action Level for air quality, as derived from the baseline monitoring data recorded at Hong Kong SkyCity Marriott Hotel, was adopted for this alternative air quality location.
2.3.5
Figure 2 shows the locations of monitoring
stations. Table 2.2 describes the details of the monitoring stations.
Table 2.2 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 |
AMS7A |
Chu Kong Air-Sea Union Transportation Company Limited |
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 project. The omission will be effective on 19 November 2012.
2.4
Monitoring Parameters, Frequency and Duration
2.4.1
Table 2.3 summarizes the monitoring parameters,
frequency and duration of impact TSP monitoring.
Table 2.3 Air
Quality Monitoring Parameters, Frequency and Duration
Parameter |
Frequency and
Duration |
1-hour TSP |
Three
times every 6 days while the highest dust impact was expected |
24-hour TSP |
Once
every 6 days |
2.5.1
24-hour TSP Monitoring
(a)
The HVS was
installed in the vicinity of the air sensitive receivers. The following criteria were considered
in the installation of the HVS.
(i)
A horizontal
platform with appropriate support to secure the sampler against gusty wind was
provided.
(ii)
No two samplers
should be placed less than 2 meters apart.
(iii)
The distance
between the HVS and any obstacles, such as buildings, was at least twice the
height that the obstacle protrudes above the HVS.
(iv)
A minimum of 2
meters separation from walls, parapets and penthouse for rooftop sampler.
(v)
A minimum of 2
meters separation from any supporting structure, measured horizontally is
required.
(vi)
No furnace or
incinerator flues nearby.
(vii)
Airflow around the
sampler was unrestricted.
(viii)
Permission was
obtained to set up the samplers and access to the monitoring stations.
(ix)
A secured supply
of electricity was obtained to operate the samplers.
(x)
The sampler was
located more than 20 meters from any dripline.
(xi)
Any wire fence and
gate, required to protect the sampler, did not obstruct the monitoring process.
(xii)
Flow control
accuracy was kept within ¡Ó2.5% deviation over 24-hour sampling period.
(b)
Preparation of
Filter Papers
(i)
Glass fibre filters, G810 were labelled and sufficient filters
that were clean and without pinholes were selected.
(ii)
All filters were
equilibrated in the conditioning environment for 24 hours before weighing. The
conditioning environment temperature was around 25 ¢XC and not variable by more
than ¡Ó3 ¢XC; the relative humidity (RH) was < 50% and not variable by more
than ¡Ó5%. A convenient working RH was 40%.
(iii)
All filter papers
were prepared and analysed by ALS Technichem
(HK) Pty Ltd., which is a HOKLAS accredited laboratory and has comprehensive
quality assurance and quality control programmes.
(c)
Field Monitoring
(i)
The power supply
was checked to ensure the HVS works properly.
(ii)
The filter holder
and the area surrounding the filter were cleaned.
(iii)
The filter holder
was removed by loosening the four bolts and a new filter, with stamped number
upward, on a supporting screen was aligned carefully.
(iv)
The filter was
properly aligned on the screen so that the gasket formed an airtight seal on
the outer edges of the filter.
(v)
The swing bolts
were fastened to hold the filter holder down to the frame. The pressure applied was sufficient to
avoid air leakage at the edges.
(vi)
Then the shelter
lid was closed and was secured with the aluminum strip.
(vii)
The HVS was
warmed-up for about 5 minutes to establish run-temperature conditions.
(viii)
A new flow rate
record sheet was set into the flow recorder.
(ix)
On site
temperature and atmospheric pressure readings were taken and the flow rate of
the HVS was checked and adjusted at around 1.1 m3/min,
and complied with the range specified in the updated EM&A Manual (i.e.
0.6-1.7 m3/min).
(x)
The programmable
digital timer was set for a sampling period of 24 hrs,
and the starting time, weather condition and the filter number were recorded.
(xi)
The initial
elapsed time was recorded.
(xii)
At the end of
sampling, on site temperature and atmospheric pressure readings were taken and
the final flow rate of the HVS was checked and recorded.
(xiii)
The final elapsed
time was recorded.
(xiv)
The sampled filter
was removed carefully and folded in half length so
that only surfaces with collected particulate matter were in contact.
(xv)
It was then placed
in a clean plastic envelope and sealed.
(xvi)
All monitoring
information was recorded on a standard data sheet.
(xvii)
Filters were then
sent to ALS Technichem (HK) Pty Ltd. for analysis.
(d)
Maintenance and
Calibration
(i)
The HVS and its
accessories were maintained in good working condition, such as replacing motor
brushes routinely and checking electrical wiring to ensure a continuous power
supply.
(ii)
5-point
calibration of the HVS was conducted using TE-5025A Calibration Kit prior to
the commencement of baseline monitoring. Bi-monthly 5-point calibration of the
HVS will be carried out during impact monitoring.
(iii)
Calibration
certificate of the HVSs are provided in Appendix E.
2.5.2
1-hour TSP Monitoring
(a)
Measuring
Procedures
The
measuring procedures of the 1-hour dust meter were in accordance with the
Manufacturer¡¦s Instruction Manual as follows:-
(i)
Turn the power on.
(ii)
Close the air
collecting opening cover.
(iii)
Push the ¡§TIME
SETTING¡¨ switch to [BG].
(iv)
Push ¡§START/STOP¡¨
switch to perform background measurement for 6 seconds.
(v)
Turn the knob at
SENSI ADJ position to insert the light scattering plate.
(vi)
Leave the
equipment for 1 minute upon ¡§SPAN CHECK¡¨ is indicated in the display.
(vii)
Push ¡§START/STOP¡¨
switch to perform automatic sensitivity adjustment. This measurement takes 1
minute.
(viii)
Pull out the knob
and return it to MEASURE position.
(ix)
Push the ¡§TIME
SETTING¡¨ switch the time set in the display to 3 hours.
(x)
Lower down the air
collection opening cover.
(xi)
Push ¡§START/STOP¡¨
switch to start measurement.
(b)
Maintenance and
Calibration
(i)
The 1-hour TSP
meter was calibrated at 1-year intervals against a continuous particulate TEOM
Monitor, Series 1400ab. Calibration certificates of the Laser Dust Monitors are
provided in Appendix E.
(ii)
1-hour validation
checking of the TSP meter against HVS is carried out on half-year
basis at the air quality monitoring locations.
2.6
Monitoring Schedule for the Reporting Month
2.6.1 The
schedule for air quality monitoring in September 2015 is provided in Appendix F.
2.7.1
The monitoring results for 1-hour TSP and 24-hour
TSP are summarized in Table 2.4 and 2.5 respectively. Detailed impact air
quality monitoring results are presented in Appendix G.
Table 2.4 Summary
of 1-hour TSP Monitoring Results in the Reporting Period
|
Average (mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit
Level (mg/m3) |
AMS2 |
78 |
71-86 |
374 |
500 |
AMS3B |
77 |
68-86 |
368 |
500 |
AMS7A |
78 |
72-85 |
370 |
500 |
Table 2.5 Summary of
24-hour TSP Monitoring Results in the Reporting Period
|
Average (mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit
Level (mg/m3) |
AMS2 |
34 |
11-69 |
176 |
260 |
AMS3B |
39 |
23-70 |
167 |
260 |
AMS7A |
50 |
22-81 |
183 |
260 |
2.7.2
The event action plan is annexed in Appendix L.
2.7.3
Meteorological information collected from the wind
station during the monitoring periods on the monitoring dates, as shown in
Figure 2, including wind speed and wind direction, is annexed in Appendix H.
3.1.1
In accordance with the Project Specific EM&A
Manual, impact noise monitoring was conducted for at least once per week during
the construction phase of the Project. The Action and Limit level of the noise
monitoring is provided in Appendix D.
3.2.1
Noise monitoring was performed using sound level
meter at each designated monitoring station. The sound level meters deployed comply
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 meters at a known sound pressure level. Brand and model of the equipment is
given in Table 3.1.
Table 3.1 Noise
Monitoring Equipment
Equipment |
Brand and Model |
Integrated Sound Level Meter |
Rion NL-31 & B&K2238 |
Acoustic Calibrator |
Rion NC-73 & B&K 4231 |
3.3.1
Monitoring locations NMS2 was set up at the
proposed locations in accordance with Project Specific EM&A Manual.
However, for monitoring location NMS3 (Ho Yu College), as proposed in the
Project 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.
3.3.2
Figure 2 shows the locations of the monitoring
stations. Table 3.2 describes the details of the monitoring stations.
Table 3.2 Locations
of Impact Noise Monitoring Stations
Monitoring
Station |
Location |
Description |
NMS2 |
Seaview
Crescent Tower 1 |
Free-field on the rooftop of the premise |
NMS3B |
Site Boundary of Site Office
Area at Works Area WA2 |
Free-field on ground at the area boundary. |
3.4
Monitoring
Parameters, Frequency and Duration
3.4.1 Table 3.3
summarizes the monitoring parameters, frequency and duration of impact noise
monitoring.
Table 3.3 Noise
Monitoring Parameters, Frequency and Duration
Parameter |
Frequency and Duration |
30-mins measurement at each monitoring
station between 0700 and 1900 on normal weekdays (Monday to Saturday). Leq, L10 and L90 would
be recorded. |
At least once
per week |
3.5.1
Monitoring Procedure
(a)
The sound level
meter was set on a tripod at a height of 1.2 m above the ground for free-field
measurements at NMS2. A correction of +3 dB(A) shall
be made to the free field measurements.
(b)
All measurement at NMS3B were free field measurements in the reporting month at NMS3B. A correction of +3 dB(A) shall be made to the
free field measurements.
(c)
The battery
condition was checked to ensure the correct functioning of the meter.
(d)
Parameters such as
frequency weighting, the time weighting and the measurement time were set as
follows:-
(i)
frequency
weighting: A
(ii)
time weighting:
Fast
(iii)
time measurement: Leq(30-minutes)
during non-restricted hours i.e. 07:00 ¡V 1900 on normal weekdays.
(e)
Prior to and after
each noise measurement, the meter was calibrated using the acoustic calibrator
for 94dB(A) at 1000 Hz. If the difference in the calibration
level before and after measurement was more than 1 dB(A),
the measurement would be considered invalid and repeat of noise measurement
would be required after re-calibration or repair of the equipment.
(f)
During the
monitoring period, the Leq, L10
and L90 were recorded.
In addition, site conditions and noise sources were recorded on a
standard record sheet.
(g)
Noise measurement
was paused during periods of high intrusive noise (e.g. dog barking, helicopter
noise) if possible. Observations were recorded when intrusive noise was
unavoidable.
(h)
Noise monitoring
was cancelled in the presence of fog, rain, wind with a steady speed exceeding
5m/s, or wind with gusts exceeding 10m/s. The wind speed shall be checked with a
portable wind speed meter capable of measuring the wind speed in m/s.
3.5.2
Maintenance and Calibration
(a)
The microphone
head of the sound level meter was cleaned with soft cloth at regular intervals.
(b)
The meter and
calibrator were sent to the supplier or HOKLAS laboratory to check and
calibrate at yearly intervals.
(c)
Calibration
certificates of the sound level meters and acoustic calibrators are provided in
Appendix E.
3.6
Monitoring
Schedule for the Reporting Month
3.6.1
The schedule for construction noise monitoring in September 2015 is provided in Appendix F.
3.7.1
The monitoring results for construction noise are
summarized in Table 3.4 and the monitoring data is provided in Appendix I.
Table 3.4 Summary of
Construction Noise Monitoring Results in the Reporting Period
|
Average,
dB(A), Leq (30 mins) |
Range,
dB(A), Leq (30 mins) |
Limit
Level, dB(A), Leq (30 mins) |
NMS2 |
66 |
64-68* |
75 |
NMS3B |
66 |
64-68* |
70/65^ |
*+3dB(A) Façade correction included
^ Daytime noise Limit Level of 70 dB(A) applies to education institutions, while
65dB(A) applies during school examination period.
3.7.2
No Action or Limit Level
Exceedance of construction noise was recorded in the reporting month.
3.7.3
Major noise sources during the noise monitoring
included construction activities of the Project, construction activities by
other contracts and nearby traffic noise.
3.7.4
The event action plan is annexed in Appendix L.
4.1.1
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. For impact water quality monitoring,
measurements were taken in accordance with the Project Specific EM&A
Manual. Appendix D shows the established Action/Limit Levels for the
environmental monitoring works.
4.2.1
Table 4.1 summarises the
equipment used in the impact water quality monitoring programme.
Table 4.1 Water
Quality Monitoring Equipment
Equipment |
Brand and Model |
Dissolved Oxygen (DO) and Temperature Meter, Salinity
Meter and Turbidity Meter |
YSI Model 6820 |
pH Meter |
YSI Model 6820 or Thermo Orion 230A+ |
Positioning Equipment |
JRC DGPS 224 Model JLR-4341 with J-NAV 500 Model
NWZ4551 |
Water Depth Detector |
Eagle Cuda-168 and Lowrance
x-4 |
Water Sampler |
Kahlsio Water
Sampler (Vertical) 2.2 L with messenger |
4.3
Monitoring
Parameters, Frequency and Duration
4.3.1 Table 4.2 summarises the monitoring parameters, frequency and
monitoring depths of impact water quality monitoring as required in the Project
Specific EM&A Manual.
Table 4.2 Impact Water Quality
Monitoring Parameters and Frequency
Monitoring Stations |
Parameter, unit |
Frequency |
No. of depth |
Impact Stations: IS5, IS(Mf)6, IS7, IS8, IS(Mf)9,
IS10, IS(Mf)11, IS(Mf)16, IS17 Control/Far Field Stations: CS(Mf)3, CS(Mf)5, CS4, CS6, CSA Sensitive Receiver Stations: SR3-SR7, SR10A&SR10B |
¡P
Depth, m ¡P
Temperature, oC ¡P
Salinity, ppt ¡P
Dissolved Oxygen (DO),
mg/L ¡P
DO Saturation, % ¡P
Turbidity, NTU ¡P
pH ¡P
Suspended Solids (SS),
mg/L |
Three times per week during mid-ebb and mid-flood tides (within ¡Ó 1.75
hour of the predicted time) |
3 (1 m below water surface, mid-depth and 1 m above sea bed, except
where the water depth is less than 6 m, in which case the mid-depth station
may be omitted. Should the water depth be less than 3 m, only the
mid-depth station will be monitored). |
4.4.1
In accordance with the Project 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.
4.4.2
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.
4.4.3
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.
4.4.4
The locations of these monitoring stations are
summarized in Table 4.3 and depicted in Figure 3.
Table 4.3 Impact
Water Quality Monitoring Stations
Station |
Description |
East |
North |
IS5 |
Impact Station (Close to HKBCF
construction site) |
811579 |
817106 |
IS(Mf)6 |
Impact Station (Close to HKBCF
construction site) |
812101 |
817873 |
IS7 |
Impact Station (Close to HKBCF
construction site) |
812244 |
818777 |
IS8 |
Impact Station (Close to HKBCF
construction site) |
814251 |
818412 |
IS(Mf)9 |
Impact Station (Close to HKBCF
construction site) |
813273 |
818850 |
IS10 |
Impact Station (Close to HKBCF
construction site) |
812577 |
820670 |
Impact Station (Close to HKBCF
construction site) |
813562 |
820716 |
|
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 |
SR4(N) |
Sensitive receivers (Tai Ho) |
814705 |
817859 |
SR5 |
Sensitive receivers (Artificial Reef
in NE Airport) |
811489 |
820455 |
SR6 |
Sensitive receivers (Sha Chau and
Lung Kwu Chau Marine Park) |
805837 |
821818 |
SR7 |
Sensitive
receivers (Tai Mo Do) |
814293 |
821431 |
SR10A |
Sensitive receivers (Ma Wan FCZ)1 |
823741 |
823495 |
SR10B(N) |
Sensitive receivers (Ma Wan FCZ)2 |
823683 |
823187 |
Control Station |
809989 |
821117 |
|
Control Station |
817990 |
821129 |
|
CS4 |
Control Station |
810025 |
824004 |
CS6 |
Control Station |
817028 |
823992 |
CSA |
Control Station |
818103 |
823064 |
4.5.1
Instrumentation
(a)
The in-situ water
quality parameters, viz. dissolved oxygen, temperature, salinity, turbidity and
pH, were measured by multi-parameter meters (i.e. Model YSI 6820 CE-C-M-Y) and
pH meter (i.e. Thermo Orion 230A+) respectively.
4.5.2
Operating/Analytical Procedures
(a)
Digital Differential Global Positioning
Systems (DGPS) were used to ensure that the
correct location was selected prior to sample collection.
(b)
Portable,
battery-operated echo sounders were used for the determination of water depth
at each designated monitoring station.
(c)
All in-situ
measurements were taken at 3 water depths, 1 m below water surface, mid-depth and
1 m above sea bed, except where the water depth was less than 6 m, in which
case the mid-depth station was omitted. Should the water depth be less
than 3 m, only the mid-depth station was monitored.
(d)
At each
measurement/sampling depth, two consecutive in-situ monitoring (DO
concentration and saturation, temperature, turbidity, pH, salinity) and water
sample for SS. The probes were retrieved out of the water after the first
measurement and then re-deployed for the second measurement. Where the
difference in the value between the first and second readings of DO or
turbidity parameters was more than 25% of the value of the first reading, the
reading was discarded and further readings were taken.
(e)
Duplicate samples
from each independent sampling event were collected for SS measurement. Water
samples were collected using the water samplers and the samples were stored in
high-density polythene bottles. Water samples collected were well-mixed in the
water sampler prior to pre-rinsing and transferring to sample bottles. Sample
bottles were pre-rinsed with the same water samples. The sample bottles were
then be packed in cool-boxes (cooled at 4oC without being frozen),
and delivered to ALS Technichem (HK) Pty Ltd. for the
analysis of suspended solids concentrations. The laboratory determination work
would be started within 24 hours after collection of the water samples. ALS Technichem (HK) Pty Ltd. is a HOKLAS accredited laboratory
and has comprehensive quality assurance and quality control programmes.
For QA/QC procedures, one duplicate samples of every batch of 20 samples was
analyzed.
(f)
The analysis
method and reporting and detection limit for SS is shown in Table 4.4.
Table 4.4 Laboratory
Analysis for Suspended Solids
Parameters |
Instrumentation |
Analytical Method |
Reporting Limit |
Detection Limit |
Suspended Solid (SS) |
Weighting |
APHA 2540-D |
0.5mg/L |
0.5mg/L |
(g)
Other relevant
data were recorded, including monitoring location / position, time, water
depth, tidal stages, weather conditions and any special phenomena or work
underway at the construction site in the field log sheet for information.
4.5.3
Maintenance and Calibration
(a)
All in situ
monitoring instruments would be calibrated and calibrated by ALS Technichem (HK) Pty Ltd. before use and at 3-monthly
intervals throughout all stages of the water quality monitoring programme. Calibration details are provided in Appendix E.
(b)
The dissolved
oxygen probe of YSI 6820 was calibrated by wet bulb method. Before the
calibration routine, the sensor for dissolved oxygen was thermally equilibrated
in water-saturated air. Calibration cup is served as a calibration chamber and
it was loosened from airtight condition before it is used for the calibration.
Calibration at ALS Technichem (HK) Pty Ltd. was
carried out once every three months in a water sample with a known
concentration of dissolved oxygen. The sensor was immersed in the water and
after thermal equilibration, the known mg/L value was keyed in and the
calibration was carried out automatically.
(c)
The turbidity
probe of YSI 6820 is calibrated two times a month. A zero check in distilled
water was performed with the turbidity probe of YSI 6820 once per monitoring
day. The probe will be calibrated with a solution of known NTU at ALS Technichem (HK) Pty Ltd. once every three months.
4.6
Monitoring Schedule for the Reporting
Month
4.6.1
The schedule for impact water quality monitoring in
September 2015
is provided in Appendix F.
4.6.2
Results
and Observations
4.6.3
Impact water quality monitoring results and
graphical presentations are provided in Appendix J.
Table 4.5 Summary
of Water Quality Exceedances
Exceedance
Level |
DO
(S&M) |
DO
(Bottom) |
Turbidity |
SS |
Total |
||||||
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
||
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)6 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS7 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS8 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)9 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS10 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)11 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS(Mf)16 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
IS17 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR3 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR4(N) |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR5 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR6 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR7 |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
(1 ) 30 Sept 2015 |
0 |
(1) |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR10A |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
SR10B (N) |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Total |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
|
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Note: S:
Surface; and
M: Mid-depth.
4.6.4
For water quality, one (1) Action Level Exceedance
of SS at SR7 during flood tide was recorded on 30 September 2015.
4.6.4.1 Layout map below shows that vessel
activities were carried out at Portion D by vessels during flood tide but no
marine based construction work was conducted at north part of the HKBCF
reclamation works on 30 September 2015:
4.6.4.2 Exceedance recorded at SR7 during mid-flood
tide is unlikely due to marine based construction activities of the Project:
4.6.4.3 With reference to the silt curtain checking
record of 30 September 2015, defects such as missing segment or disconnection
of the perimeter silt curtain were not observed at north part of the perimeter
silt curtain.
4.6.4.4 With referred to the attached layout map, no
marine based construction work was conducted at north part of the HKBCF
reclamation works on 30 September 2015 and no silt plume was observed to flow
from the inside of the perimeter silt curtain to the outside of the perimeter
silt curtain when monitoring was conducted during flood tide.
4.6.4.5 Photo record which shows the sea condition
at north part of the HKBCF reclamation works during flood tide on 30 September
2015.
4.6.4.6 Also, turbidity level recorded at IS(Mf)11,
IS10, IS17 and SR7 were 10.6(NTU), 14.5(NTU), 15.8(NTU) and 9.9(NTU)
respectively; Suspended solids level recorded at IS(Mf)11, IS10 and IS17 were
14.2 mg/L, 16 mg/L and 8.3 mg/L respectively, which were all below the action
and limit level. This indicates the turbidity level at or near SR7 and
Suspended Solids level near SR7 was not adversely affected.
4.6.4.7 Impact water quality monitoring stataions IS(Mf)11, IS10 and IS17
are located relatively closer to the construction site of HKBCF reclamation
works but no IWQM exceedance was recorded on 30 September 2015 during flood
tide. This indicates that the SS exceedance recorded at SR7 on 30 September
2015 during flood tide was unlikely due to activities of HKBCF reclamation
works.
4.6.4.8 The exceedance was likely due to local
effects in the vicinity of SR7.
4.6.4.9 After investigation, there is no adequate
information to conclude the recorded exceedance is related to this Contract.
4.6.4.10 Action taken under the action plan:
1.
Not applicable as SS was not measured in situ;
2.
After
considering the above mentioned investigation results, it appears that it was
unlikely that the SS exceedances were attributed to active construction
activities of this Contract;
3.
IEC, contractor and ER were informed via email;
4.
Monitoring data, all plant, equipment and
Contractor's working methods were checked;
5.
Since it is considered that the SS exceedance is
unlikely to be project related, as such, actions 5-7 under the EAP are not
considered applicable.
4.6.4.11
The exceedences noted were of a localised
nature and in the north of HKBCF (on 30 September 2015), the north of the
Brothers Island, at NEL. Short duration local increased sedimentation is not
anticipated to affect the dolphins which may have occurred in the western
reached of NWL.
4.6.4.12
Nevertheless,
the Contractor was reminded to ensure provision of ongoing maintenance to the
silt curtains and to carry out maintenance work once defects were found.
4.6.4.13 Maintenance work of the silt curtain was
carried out by the Contractor on a daily basis except Sunday and public
holiday.
4.6.5
The event action plan is annexed in Appendix L.
5
Dolphin monitoring
5.1.1 Vessel based surveys for the Chinese White Dolphin (CWD), Sousa chinensis,
are to be conducted by a dedicated team comprising a qualified marine
mammal ecologist and experienced marine mammal observers (MMOs). The purpose of
the surveys are to evaluate the impact of the HKCBF reclamation and, if deemed
detrimental, to take appropriate action as per the EM&A manual.
5.1.2 This
¡¥Impact Monitoring¡¦ follows several months of ¡¥Baseline Monitoring¡¦ so similar
survey methodologies have been adopted to facilitate comparisons between
datasets. Further, the data
collected are compatible with, and are available for, incorporation into the
data set managed by the Agriculture, Fisheries and Conservation Department
(AFCD) as part of Hong Kong¡¦s long term Marine Mammal Monitoring Programme.
Table 5.1 summarises the equipment used for the impact dolphin
monitoring.
Table
5.1 Dolphin
Monitoring Equipment
Equipment |
Model |
Commercially licensed motor vessel |
15m in length with a 4.5m viewing platform |
Global Positioning
System (GPS) x2 |
Integrated into T7000 Garmin GPS Map 76C |
Computers (T7000 Tablet, Intel Atom) |
Windows 7/MSO 13 Logger |
Camera |
Nikon D7100 300m 2.8D fixed focus Nikon D90 80-400mm zoom lens |
Laser Rangefinder |
Range Finder Bushnell 1000m |
Marine Binocular x3 |
Nexus 7 x 50 marine binocular with compass and reticules Fujinon 7 x 50 marine binocular with compass and
reticules |
5.3
Monitoring
Frequency and Conditions
5.3.1
Dolphin monitoring is conducted twice per month in
each survey area.
5.3.2
Dolphin monitoring is conducted only when
visibility is good (e.g., over 1km) and the sea condition is at a Beaufort Sea
State of 4 or better.
5.3.3
When thunder storm, black rain or typhoon warnings
are in force, all survey effort is stopped.
5.4
Monitoring
Methodology and Location
5.4.1
The impact dolphin monitoring is vessel-based and
combines line-transect and photo-ID methodology. The survey follows pre-set and fixed
transect lines in the two areas defined by AFCD as:
5.4.2 Northeast
Lantau survey area; and
5.4.3 Northwest
Lantau survey area.
5.4.4
The co-ordinates for the transect lines and layout
map have been provided by AFCD and are shown in Table 5.2 and Figure 4.
Table
5.2 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 |
22.276504 |
1 |
804671 |
831404 |
113.869975 |
22.421696 |
2 |
805475 |
815913 |
113.878079 |
22.281819 |
2 |
805477 |
826654 |
113.877896 |
22.378814 |
3 |
806464 |
819435 |
113.887615 |
22.313643 |
3 |
806464 |
822911 |
113.887550 |
22.345030 |
4 |
807518 |
819771 |
113.897833 |
22.316697 |
4 |
807518 |
829230 |
113.897663 |
22.402113 |
5 |
808504 |
820220 |
113.907397 |
22.320761 |
5 |
808504 |
828602 |
113.907252 |
22.396462 |
6 |
809490 |
820466 |
113.916965 |
22.323003 |
6 |
809490 |
825352 |
113.916884 |
22.367128 |
7 |
810499 |
820880 |
113.926749 |
22.325043 |
7 |
810499 |
824613 |
113.926688 |
22.360464 |
8 |
811508 |
821123 |
113.936539 |
22.326475 |
8 |
811508 |
824254 |
113.936486 |
22.357241 |
9 |
812516 |
821303 |
113.946320 |
22.326894 |
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 |
Remarks:
(a) *Due to the presence of deployed silt curtain systems at the site
boundaries of the Project, 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.
Therefore the total transect length for both NEL and
NWL combined is reduced to approximately 108km.
(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.
5.5.1
The study area incorporates 23 transects which are
to be surveyed twice per month.
Each survey day lasts approximately 9 hours.
5.5.2
The survey vessel departs from Tung Chung
Development Pier, Tsing Yi Public Pier or the nearest safe and convenient
pier.
5.5.3
When the vessel reaches the start of a transect
line, ¡§on effort¡¨ survey begins. Areas between transect lines and traveling to
and from the study area are defined as ¡§off effort¡¨.
5.5.4
The transect line is surveyed at a speed of 6-8
knots (11-14 km/hr). For the sake of safety, the
speed was sometimes a bit slower to avoid collision with other vessels. During some periods, tide and current
flow in the survey areas exceeds 7 knots which can affect survey speed. There
are a minimum of four marine mammal observers (MMOs) present on each survey,
rotating through four positions, observers (2), data recorder (1) and ¡¥rest¡¦
(1). Rotations occur every 30 minutes or at the end of dolphin encounters. The data recorder records effort,
weather and sightings data directly onto the programme
Logger and is not part of the observer team. The observers search with naked eye and
binoculars between 90¢X and 270¢X abeam (bow being 0¢X).
5.5.5
When a group of dolphins is sighted, position,
bearing and distance data are recorded immediately onto the computer and, after
a short observation, an estimate made of group size. These parameters are linked to the
time-GPS-ships data which are automatically stored in the programme
Logger throughout the survey period.
In this manner, information on heading, position, speed, weather, effort
and sightings are stored in a format suitable for use with
DISTANCE software for subsequent line transect analyses.
5.5.6
Once the vessel leaves the transect line, it is
deemed to be ¡§off effort¡¨. The dolphins are approached with the purpose of
taking high resolution pictures for proper photo-identification of individual
CWD. Attempts to photograph all
dolphins in the group are made.
Both the left and right hand sides of the dorsal fin area of each dolphin
in the group are photographed, if possible. On finishing photographing, the vessel
will return to the transect line at the point of departure and ¡§on effort¡¨
survey is resumed.
5.5.7
Sightings which are made while on the transect line
are referred to as "on effort sightings", while not on the actual
transect line are referred to as an ¡§opportunistic sightings¡¨ (e.g. another
group of dolphins is sighted while travelling back to the transect line). Only ¡§on effort sightings¡¨ can be used
in analyses which require effort or rate quantification, e.g., encounter rate
per 100km searched. This is also
how ¡§on effort sightings¡¨ are treated in the baseline report. ¡§Opportunistic sightings¡¨ provide
additional information on individual habitat use and population distribution
and they are noted accordingly.
5.5.8
As time and GPS data are automatically logged
throughout the survey and are linked to sightings data input, start and end
times of encounters and deviation from the transect lines are recorded and can
be subsequently reviewed.
5.6
Monitoring
Schedule for the Reporting Month
5.6.1
The schedule for dolphin monitoring in September 2015 is provided
in Appendix F.
5.6.2
Two surveys covering both study areas were
completed.
5.7.1 Dolphin surveys were conducted on 7,
8, 29 and 30 September 2015. A
total of 216.3 km of transect line was conducted; 212.5km was conducted
during Beaufort Sea State 3 or better (favourable water conditions). The amendments proposed to lines 1, 2, 7, 8, 9 and 11 which were
submitted to EPD were approved in August 2015. The new lines were travelled in
September 2015.
5.7.2 The effort summary and sightings data
are shown in Tables 5.3 and 5.4, respectively. The survey efforts conducted in
September 2015 are plotted in Figure 5a-b. For Table 5.3, only on-effort
information is included. Transects conducted in all Beaufort Sea State are
included. Compared to previous monthly reports, the whole number Beaufort Sea
State scale is used so as to ease comparison with other dolphin monitoring
reports.
Table
5.3 Impact Dolphin Monitoring Survey Effort
Summary,
Effort by Area and Beaufort
Sea State
Survey |
Date |
Area |
Beaufort |
Effort (km) |
Total Distance Travelled (km) |
1 |
09/07/2015 |
NWL |
1 |
53.9 |
108 |
09/07/2015 |
NWL |
2 |
3.2 |
||
09/08/2015 |
NWL |
1 |
14.9 |
||
09/08/2015 |
NEL |
1 |
13.7 |
||
09/08/2015 |
NEL |
2 |
22.3 |
||
2 |
09/29/2015 |
NWL |
1 |
4 |
108.3 |
09/29/2015 |
NWL |
2 |
30.6 |
||
09/29/2015 |
NWL |
3 |
27.8 |
||
09/29/2015 |
NWL |
4 |
3.8 |
||
09/30/2015 |
NWL |
1 |
3 |
||
09/30/2015 |
NWL |
2 |
3.1 |
||
09/30/2015 |
NEL |
1 |
12.4 |
||
09/30/2015 |
NEL |
2 |
15.5 |
||
09/30/2015 |
NEL |
3 |
8.1 |
||
TOTAL in SEPTEMBER 2015 |
216.3 |
*Remark: Surveys
conduct under Beaufort Sea State 3 or below are considered as under favourable condition.
Table 5.4 Impact Dolphin Monitoring Survey Details
September
2015
Date |
Location |
No. Sightings ¡§on effort¡¨ |
No. Sightings ¡§opportunistic¡¨ |
09/07/2015 |
NW L |
2 |
0 |
NEL |
0 |
0 |
|
09/08/2015 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
09/29/2015 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
09/30/2015 |
NW L |
0 |
0 |
NEL |
0 |
0 |
|
TOTAL in September 2015
|
2 |
0 |
* Location indicates which area was being
surveyed when the sighting was made. The area noted does not necessarily
indicate where the dolphins were when the sighting was made.
Table
5.5 The Encounter Rate of Number of Dolphin
Sightings & Total Number of Dolphins per Area^
Encounter Rate of Number of Dolphin Sightings (STG)* |
||||||
Date |
NEL
Track (km) |
NWL
Track (km) |
NEL
Sightings |
NWL
Sightings |
NEL
Encounter Rate |
NWL
Encounter Rate |
7 & 8 Sept 2015 |
36.0 |
72.0 |
0 |
2 |
0 |
2.8 |
29 & 30 Sept 2015 |
36.0 |
68.5 |
0 |
0 |
0 |
0 |
Encounter Rate of Total Number of Dolphins (ANI)** |
||||||
Date |
NEL
Track (km) |
NWL
Track (km) |
NEL
Dolphins |
NWL
Dolphins |
NEL
Encounter Rate |
NWL
Encounter Rate |
7 & 8 Sept 2015 |
36.0 |
72.0 |
0 |
5 |
0 |
6.9 |
29 & 30 Sept 2015 |
36.0 |
68.5 |
0 |
0 |
0 |
0 |
* Encounter Rate of Number of Dolphin Sightings (STG) presents encounter rates in terms of
groups per 100km.
** Encounter Rate of Total Number of Dolphins (ANI) presents encounter rates in terms of
individuals per 100km. And the encounter rate is not corrected for individuals,
calculation may represent double counting.
^The table is made
only for reference to the quarterly STG & ANI, which were adopted for the
Event & Action Plan.
5.7.3 A total of two sightings were made,
both ¡§on effort¡¨. Both sightings
were recorded on the 7 September 2015. Sighting details are summarised
and plotted in Appendix K and Figure 5c, respectively. The first group sighted
on the 7 September 2015 comprised one individual and the second, four
individuals.
5.7.4 Behaviour: On the 7 September 2015, the behaviour of the first sighting made was noted as
travelling and the second group was engaged in multiple activities; feeding,
surface active and travelling. No calves were sighted during impact surveys in
September 2015. Locations of sighting with different behaviour
are mapped in Figure 5d.
5.7.5 Three re-sightings were noted in July 2015. On July 6th, HZMB 008 was
sighted in NWL. HZMB 008 has been sighted once previously in NWL in May
2012. HZMB 004 was sighted on 28th
July 2015. HZMB 004 was first sighted in March 2012 and again in September
2012, both times in NWL. Previously recorded as HZMB 120, this dolphin left fin
is now matched to a right fin of HZMB 107. The single previous sighting of HZMB
120 (May 2014) is now included in HZMB 107 data. HZMB 107 was sighted on 28
July 2015. This dolphin was first sighted in August 2013 and subsequently in
May and October of 2014. All sightings have been made in NWL. It is noted that
dolphins which have not been sighted for several years have been resighted again in July 2015. Images and re-sightings data
are included Appendix K.
5.7.6
One individual was resighted
in August 2015 and one new individual was added to the catalogue. HZMB 014 was
sighted on 25 August 2015 in NWL. HZMB 014 is known from the AFCD catalogue
(NL176) and was sighted during baseline monitoring (Nov 2011) as well as during
impact monitoring in 2012 and in 2013 in both NEL and NWL. This individual was
last sighted during impact monitoring in December 2013. A new individual HZMB 129 was added to
the catalogue. Images and re-sightings data are included in Appendix K.
5.7.7
Noteworthy Observation[1]:
5.7.7.1
When
impact monitoring was conducted at the southern parts of transect lines 1 &
2, the view of the area was partially blocked by the working vessels and fixed
structures which do not belong to HKBCF Reclamation Works. The number of
fixed structures has increased and in many areas, it is no longer possible to
pass between them by ship. As the
working vessels will move during the on-going works, it is considered that they
will temporarily affect survey protocol, survey data collection, dolphin
movement, dolphin habitat use and dolphin behaviour,
whereas the fixed structures will continuously affect survey protocol, survey
data collection, dolphin movement, dolphin habitat use and dolphin behaviour.
5.7.7.2
The
HKBCF and adjoining ¡§Southern Landfall¡¨ Projects effected lines 10, 11 and 12.
The view of the area was partially blocked by the working vessels and in water
structures. As the working vessels will move as construction progresses, they
will cause temporary effects to survey protocol and survey data collection. In time, the fixed structures will
affect all survey protocols and dolphin ecology in the long term.
5.7.7.3
Travel
to the northern end of line 10 was slightly impeded by the large numbers of
ships in the public anchorage. After checking with Contactor¡¦s marine
department, no record match with the abovementioned vessels, as such they are
unlikely to be related to this Contract. As there are variable numbers of ships
in this anchorage through time, it is considered that this could temporarily
affect survey protocol, survey data collection and dolphin habitat use.
5.7.7.4
Anchored
fishing vessels were noted on lines 1. In previous encounters, dolphins were
seen feeding in association with these vessels despite them not being active.
This may influence both dolphin behaviour and the
view of the area.
5.7.7.5
New
projects were ongoing at the southern ends of lines 4, 5 and 6 which were not
part of this Project. There are no apparent fixed structures associated with
these projects only platforms and servicing vessels. A working vessel was noted
at line 5 associated with one of the new projects. As it is not known what
activity was being conducted, the effect that these projects may have
specifically on dolphins is not known.
5.7.7.6
Vessel
traffic congestion delayed start of surveying line 20 on the 30 September 2015
for a short time. This area is where Urmston Road
vessel traffic converges to pass under the Kap Shui Mun Bridge. After checking
with Contactor¡¦s marine department, no record match with the abovementioned
vessels, as such they are unlikely to be related to this Contract. As the container vessels were moving and
cleared the area within the survey period, it is considered that this
temporarily affected survey protocol only.
5.7.7.7
The
survey effort log notes the areas in which the visibility is limited or the
survey is affected so that these can be accounted for in any subsequent
analyses. Some of these obstructions will
become permanent and some will be temporary as the HZMB is built
and other projects progress. It is advised that the impact monitoring surveys
should be completed as close to the predefined lines as possible (as per Figure
4 of this report).
5.7.7.8
The
above noteworthy observations are largely a result of multiple and on-going
infrastructure projects within the Lantau area. No amendment to EM&A
protocols can negate the effects of these projects, e.g., it is a highly
dynamic environment and viewing conditions may alter every survey (sometimes
within surveys) and most of the survey area is affected, to some degree, by
marine construction works. Instead, survey data analyses should
incorporate any noteworthy observations which may affect either data collection
or dolphin distribution and behavioural
changes. The above mentioned activities recorded during boat survey will
not affect implementation of the EM&A Programme.
5.7.8
The event action plan is annexed in Appendix L.
6
ENVIRONMENTAL SITE INSPECTION AND AUDIT
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 Project.
In the reporting month, 4 site
inspections were carried out on 2, 10, 17 and
24 September 2015.
6.1.2 Particular
observations during the site inspections are described below:
Air Quality
6.1.3 The
Contractor was reminded to continue to provide sufficient dust control to
prevent generation of fugitive dust. (Reminder)
6.1.4 Fugitive
dust was observed when vehicle was drove pass the road, during grout production
process and during rock filling process. The Contractor was reminded to provide
sufficient dust control to prevent generation of fugitive dust. The Contractor
subsequently provided dust control measures to the area. (Closed)
Noise
6.1.5 No relevant
adverse impact was observed in the reporting month.
Water
Quality
6.1.6 A deformed
drip tray was observed on site. The Contractor was reminded to provide drip
tray which can effectively contain potential leakage of oil. The Contractor
subsequently provided drip tray without defect. (Closed)
6.1.7 Gaps
between vehicle accesses were observed on the landing barge near Portion E1.
The Contractor was reminded to provide measure to prevent potential runoff on
the landing barge. (Reminder)
6.1.8 Material
was observed stockpiled on cells at Portion E1. The Contractor was reminded to
provide preventative measures to the works process to prevent runoff. The
Contractor subsequently removed the material from Portion E1. (Closed)
6.1.9 Delivery
pipe of floating grout production facilities was observed not fully enclosed.
The Contractor was reminded to ensure full enclosure and prevent any potential
runoff. The Contractor subsequently provided full enclosure to delivery pipes
of the grout production facilities. (Closed)
Chemical
and Waste Management
6.1.10 The Contractor
was reminded to remove the water mixture which accumulated inside the drip
trays at Portion C2a and dispose of as chemical waste properly. The Contractor
subsequently removed the water mixture inside drip tray. (Closed)
6.1.11 It was
observed that sand was loaded inside drip trays. The Contractor was reminded to
clear the sand inside drip tray. The Contractor subsequently cleared the sand
inside drip tray. (Closed)
6.1.12 It was
observed that water and oil mixture accumulated inside drip tray. The
Contractor was reminded to clear the sand inside drip tray. The Contractor
subsequently cleared the water and oil mixture accumulated inside drip tray.
(Closed)
6.1.13 Bags of
inert waste were observed on site, the Contractor was reminded to collect and
dispose them of properly and regularly. (Reminder)
Landscape
and Visual Impact
6.1.14 No relevant
adverse impact was observed in the reporting month.
Others
6.1.15 No relevant
adverse impact was observed in the reporting month.
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, 69,848.7m3
of fill were imported for the Project use in the reporting period. 24.3kg of
chemical waste and 78m3 of general refuse were generated and
disposed of in the reporting period. Monthly summary of waste flow table is
detailed in Appendix M.
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.
6.3 Environmental Licenses and Permits
6.3.1 The
environmental licenses and permits for the Project 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/I |
17/07/2015 |
N/A |
HyD |
Hong Kong ¡V Zhuhai ¡V Macao Bridge Hong Kong Boundary Crossing
Facilities |
EP-354/2009/D |
13/03/2015 |
N/A |
Tuen Mun ¡V Chek Lap Kok Link (TMCLKL
Southern Landfall Reclamation
only) |
|||
APCO |
NA notification |
-- |
30/12/2011 |
-- |
CHEC |
Works Area WA2 and WA3 |
WDO |
Chemical Waste Producer Registration |
5213-951-C1186-21 |
30/3/2012 |
N/A |
CHEC |
Chemical waste produced in Contract HY/2010/02 |
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-RS0773-15 |
17/07/2015 |
20/10/2015 |
CHEC |
Reclamation
Works in Contract HY/2010/02 |
NCO |
Construction Noise Permit |
GW-RS1046-15 |
29/09/2015 |
31/12/2015 |
CHEC |
Reclamation Works in Contract HY/2010/02 |
NCO |
Construction
Noise Permit |
GW-RE0622-15 |
21/06/2015 |
20/12/2015 |
CHEC |
Section of TKO
Fill Bank under 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 Training of
marine travel route for marine vessels operator was given to relevant staff and
relevant records were kept properly.
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 Project
site and associated works areas throughout the construction phase.
6.4.7 As informed by the Contractor, an area of Portion B has been handed over
to other Contract and the perimeter silt curtain near this area of Portion B
has been rearranged on 31 July 2015 for berthing another Contractor¡¦s vessels
(which do not belong to this Contract). IEC/ENPO was informed on 5 Aug 2015
immediately after ET¡¦s review. IEC/ENPO provided further comments on 1
September 2015, ET responded 2 September 2015 with notification letter
ref.:60249820/rmky15090201. IEC/ENPO expressed no further comment via
letter ref.: HYDHZMBEEM00_0_03351L.15 on 8 September 2015 for the removal of
section of perimeter silt curtain near Portion B of HKBCF. EPD replied on 24
September 2015 via memo (39) in Ax(1) to EP2/G/A/146 pt.8 and reminded HyD that if grouting trial is undertaken, to adhere to the
VEP requirement and undertake the necessary mitigation measures after the phase
removal of the perimeter silt curtain.
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 in the reporting month.
6.5.2 For
construction noise, no exceedance was recorded at all monitoring stations in
the reporting month.
6.5.3 For water
quality, one (1) Action Level Exceedance of SS at SR7 during flood tide was
recorded on 30 September 2015. After investigation, there is no adequate
information to conclude the recorded exceedance is related to this Contract. No
Action and Limit Level exceedance was recorded on other monitoring date in the
reporting month.
6.5.4 A total of
two sightings were made, both ¡§on effort¡¨.
Both sightings were recorded on the 7 September 2015. Sighting details
are summarised and plotted in Appendix K and Figure
5c, respectively. The first group sighted on the 7 September 2015 comprised one
individual and the second, four individuals.
6.5.5 Behaviour: On the 7 September 2015, the behaviour
of the first sighting made was noted as travelling and the second group was
engaged in multiple activities; feeding, surface active and travelling. No
calves were sighted during impact surveys in September 2015. Locations of
sighting with different behaviour are mapped in
Figure 5d.
6.5.6 Environmental
site inspection was carried out 4 times in September 2015. Recommendations on
remedial actions were given to the Contractors for the deficiencies identified
during the site audits.
6.5.7 Cumulative
statistics on exceedance is provided in Appendix N.
6.6
Summary of Complaints, Notification of Summons and Successful
Prosecutions
6.6.1 The
Environmental Complaint Handling Procedure is annexed in Figure 6.
6.6.2 No complaint, notification of summons
and successful prosecutions was received in the reporting period.
6.6.3 Statistics on complaints,
notifications of summons and successful prosecutions are summarized in Appendix
N.
7.2 Construction Programme for the Coming
Months
7.2.1 As informed
by the Contractor, the major works for the Project in October and November 2015 will be*:-
Marine-base
-
Rubble Mound Seawall
-
Marine fill
-
Maintenance of silt curtain & silt screen
at sea water intake of HKIA
Land-base
-
Earthwork fill
-
Surcharge removal & laying
-
Deep Cement Mixing
-
Geotechnical Instrumentation Works
-
Removal of Temporary Seawall
-
Vertical Band Drains
-
Installations of Precast Culverts except
sloping outfalls
-
Maintenance works of Site Office at Works
Area WA2
-
Maintenance works of Public Works
Regional Laboratory at Works Area WA3
-
Maintenance of Temporary Marine Access at
Works Area WA2
*Construction
activities in October and November 2015 will be changed subject to works progress.
7.3 Key Issues for the Coming Month
7.3.1 Key issues
to be considered in the coming months:-
-
Site runoff should be properly
collected and treated prior to discharge;
-
Minimize loss of sediment from filling
works;
-
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.
7.4 Monitoring Schedule for the Coming
Month
7.4.1
The
tentative schedule for environmental monitoring in October 2015 is provided in Appendix F.
8 ConclusionS AND
RECOMMENDATIONS
8.2.1 The
construction phase and EM&A programme of the
Project commenced on 12 March 2012.
8.2.2 For impact
air quality monitoring, no exceedance was recorded at all monitoring stations
in the reporting month
8.2.3 For
construction noise, no exceedance was recorded at all monitoring stations in
the reporting month.
8.2.4 For water
quality, one (1) Action Level Exceedance of SS at SR7 during flood tide was
recorded on 30 September 2015. After investigation, there is no adequate
information to conclude the recorded exceedance is related to this Contract. No
Action and Limit Level exceedance was recorded on other monitoring date in the
reporting month.
8.2.5 A total of
two sightings were made, both ¡§on effort¡¨.
Both sightings were recorded on the 7 September 2015. Sighting details
are summarised and plotted in Appendix K and Figure
5c, respectively. The first group sighted on the 7 September 2015 comprised one
individual and the second, four individuals.
8.2.6 Behaviour: On the 7 September 2015, the behaviour
of the first sighting made was noted as travelling and the second group was
engaged in multiple activities; feeding, surface active and travelling. No
calves were sighted during impact surveys in September 2015. Locations of
sighting with different behaviour are mapped in
Figure 5d.
8.2.7 No
notification of complaint, summons or prosecution was received in the reporting
period.
8.3.1 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.
[1] A noteworthy observation is
to show that either the conduct of the surveys themselves is affected, i.e.,
the noted vessel or works impedes the progress or view of the survey platform.
In addition, the vessel or construction works may be different or additional to
that observed previously and further, are of such a nature that they are a
likely to create an impact on the movement or behaviour
of the subject of the impact survey, in this case, the dolphins.