Contract
No. HY/2011/03
Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road
Section between Scenic Hill and Hong Kong Boundary Crossing Facilities
Monthly EM&A Report No.64 (January 2018)
14 January 2018
Revision 1
Main
Contractor Designer
Contents
Executive Summary
1.4 Construction
Works Undertaken During the Reporting Month
2....... Air
Quality Monitoring
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....... Water Quality Monitoring
4.3 Monitoring
Parameters, Frequency and Duration
4.6 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 Prosecution
7.1 Construction
Programme for the Coming Months
7.2 Environmental
Monitoring Schedule for the Coming Month
Figures
Figure
1.1 Location
of the Site
Figure
2.1 Environmental
Monitoring Stations
Appendices
Appendix A Environmental
Management Structure
Appendix
B Construction
Programme
Appendix C Calibration Certificates
Appendix
D Monitoring
Schedule
Appendix
E Monitoring
Data and Graphical Plots
Appendix F Event and Action
Plan
Appendix G Wind
Data
Appendix
H Dolphin Monitoring Results
Appendix I Waste
Flow Table
Appendix J Cumulative Statistics
on Complaints
Appendix K Environmental Licenses
and Permits
Appendix
L Implementation
Schedule of Environmental Mitigation Measures
Appendix M Record of ¡§Notification of
Environmental Quality Limit Exceedances¡¨ and Record of ¡§Notification of Summons
and Prosecutions¡¨
Appendix N Location
of Works Areas
Executive
Summary
The Hong Kong-Zhuhai-Macao Bridge
(HZMB) Hong Kong Link Road (HKLR) serves to connect the HZMB Main Bridge at the
Hong Kong Special Administrative Region (HKSAR) Boundary and the HZMB Hong Kong
Boundary Crossing Facilities (HKBCF) located at the north eastern waters of the
Hong Kong International Airport (HKIA).
The HKLR project has been
separated into two contracts. They are Contract No. HY/2011/03 Hong
Kong-Zhuhai-Macao Bridge Hong Kong Link Road-Section between Scenic Hill and
Hong Kong Boundary Crossing Facilities (hereafter referred to as the Contract)
and Contract No. HY/2011/09 Hong Kong-Zhuhai-Macao Bridge
Hong Kong Link Road-Section between HKSAR Boundary and Scenic Hill.
China State Construction
Engineering (Hong Kong) Ltd. was awarded by Highways Department as the
Contractor to undertake the construction works of Contract No. HY/2011/03. The
main works of the Contract include land tunnel at Scenic Hill, tunnel
underneath Airport Road and Airport Express Line, reclamation and tunnel to the
east coast of the Airport Island, at-grade road connecting to the HKBCF and
highway works of the HKBCF within the Airport Island and in the vicinity of the
HKLR reclamation. The Contract is
part of the HKLR Project and HKBCF Project, these
projects are considered to be ¡§Designated Projects¡¨, under Schedule 2 of the
Environmental Impact Assessment (EIA) Ordinance (Cap 499) and Environmental
Impact Assessment (EIA) Reports (Register No. AEIAR-144/2009 and
AEIAR-145/2009) were prepared for the Project. The current Environmental Permit (EP) EP-352/2009/D
for HKLR and EP-353/2009/K for HKBCF were issued on 22 December 2014 and 11
April 2016, respectively. These documents are available through the EIA
Ordinance Register. The construction phase of Contract was commenced on 17 October 2012.
BMT Asia Pacific Limited
has been appointed by the Contractor to implement the Environmental Monitoring
& Audit (EM&A) programme for the Contract in accordance with the
Updated EM&A Manual for HKLR (Version 1.0) and will be providing
environmental team services to the Contract.
This is the sixty-fourth Monthly EM&A report for the Contract which
summarizes the monitoring results and audit findings of the EM&A programme
during the reporting period from 1 to 31 January 2018.
Environmental
Monitoring and Audit Progress
The monthly EM&A
programme was undertaken in accordance with the Updated EM&A Manual for
HKLR (Version 1.0). A summary of
the monitoring activities during this reporting month is listed below:
1-hr TSP
Monitoring |
4, 10, 16, 22 and 26 January 2018 |
24-hr TSP
Monitoring at AMS5 |
3,
9, 15, 19, 25 and 31 January 2018 |
24-hr TSP
Monitoring at AMS6 |
4, 9, 15, 19, 25 and 31 January 2018 |
Noise
Monitoring |
4, 10, 16 and 22 January 2018 |
Water Quality
Monitoring |
1, 3, 5, 8, 10, 12, 15, 17, 19, 22, 24, 26, 29 and 31 January 2018 |
Chinese White
Dolphin Monitoring |
2, 8, 16 and 25 January 2018 |
Site
Inspection |
3 ,10, 17 and 26 January 2018 |
Due
to power failure and malfunction of HVS at AMS6 from 29 December 2017 to 3
January 2018, 24-hr TSP monitoring could not be conducted at such period.
Competent people were arranged to check the power supply and repair HVS on 3
and 4 January 2018 respectively. 24-hr TSP monitoring at AMS6 has been resumed
on 4 January 2018.
Water
quality monitoring was not conducted at station CS2(A)
during mid ebb and mid flood tide on 8 January 2018 due to rough sea condition
and safety concern. Substitute monitoring was not conducted on 9 January 2018
at station CS2(A) due to rough sea condition and
safety concern.
Due
to boat unavailability, the dolphin monitoring was rescheduled from 22 January
2018 to 25 January 2018.
Due to rough sea condition on 31 January 2018, the
water quality monitoring at Station IS10(N) was temporarily conducted at
coordinate: 812886E, 820855N during mid flood tide while the water quality
monitoring at Station SR5(N) was temporarily conducted at coordinate: 812557E,
821522N during mid flood tide.
Breaches of Action and Limit Levels
A summary of environmental
exceedances for this reporting month is as follows:
Environmental Monitoring |
Parameters |
Action Level (AL) |
Limit Level (LL) |
Air Quality |
1-hr TSP |
5 |
0 |
24-hr TSP |
0 |
0 |
|
Noise |
Leq (30 min) |
0 |
0 |
Water Quality |
Suspended solids level (SS) |
3 |
0 |
Turbidity level |
0 |
0 |
|
Dissolved oxygen level (DO) |
0 |
0 |
Complaint
Log
There was one complaint
received in relation to the environmental impacts (Cleanliness problem at East
Coast Road) which was mentioned in previously Monthly EM&A Report for
December 2017. Complaint investigation is being undertaken.
A summary of environmental
complaint for previous reporting month is as follows:
Environmental Complaint No. |
Date of Complaint Received
|
Description of Environmental Complaint |
COM-2017-129 |
ENPO¡¦s
email to the Supervising Officer¡¦s Representative and Contractor on 8
January 2018 that HyD received a complaint lodged by a member of the public regarding
cleanliness problem at East Coast Road on 29 December 2017 |
Cleanliness problem at East Coast Road |
Notifications
of Summons and Prosecutions
There
were no notifications of summons or prosecutions received during this reporting
month.
Reporting
Changes
This report has been
developed in compliance with the reporting requirements for the subsequent
EM&A reports as required by the Updated EM&A Manual for HKLR (Version
1.0).
The proposal for the change
of Action Level and Limit Level for suspended solid and turbidity was approved
by EPD on 25 March 2013.
The revised Event and
Action Plan for dolphin monitoring was approved by EPD on 6 May 2013.
The original monitoring
station at IS(Mf)9 (Coordinate: 813273E, 818850N) was observed inside the
perimeter silt curtain of Contract HY/2010/02 on 1 July 2013, as such the
original impact water quality monitoring location at IS(Mf)9 was temporarily
shifted outside the silt curtain. As advised by the Contractor of HY/2010/02 in
August 2013, the perimeter silt curtain was shifted to facilitate safe
anchorage zone of construction barges/vessels until end of 2013 subject to
construction progress. Therefore,
water quality monitoring station IS(Mf)9 was shifted
to 813226E and 818708N since 1 July 2013.
According to the water quality monitoring team¡¦s observation on 24 March
2014, the original monitoring location of IS(Mf)9 was
no longer enclosed by the perimeter silt curtain of Contract HY/2010/02. Thus,
the impact water quality monitoring works at the original monitoring location
of IS(Mf)9 has been resumed since 24 March 2014.
Transect lines 1, 2, 7, 8,
9 and 11 for dolphin monitoring have been revised due to the obstruction of the
permanent structures associated with the construction works of HKLR and the
southern viaduct of TM-CLKL, as well as provision of adequate buffer distance
from the Airport Restricted Areas.
The EPD issued a memo and confirmed that they had no objection on the
revised transect lines on 19 August 2015.
The water quality
monitoring stations at IS10 (Coordinate: 812577E, 820670N) and SR5 (811489E,
820455N) are located inside Hong Kong International Airport (HKIA) Approach
Restricted Areas. The previously granted Vessel's Entry Permit for accessing
stations IS10 and SR5 were expired on 31 December 2016. During the permit
renewing process, the water quality monitoring location was shifted to IS10(N) (Coordinate: 813060E, 820540N) and SR5(N)
(Coordinate: 811430E, 820978N) on 2, 4 and 6 January 2017 temporarily. The
permit has been granted by Marine Department on 6 January 2017. Thus, the
impact water quality monitoring works at original monitoring location of IS10
and SR5 has been resumed since 9 January 2017.
Transect lines 2, 3, 4, 5,
6 and 7 for dolphin monitoring have been revised and transect line 24 has been
added due to the presence of a work zone to the north of the airport platform
with intense construction activities in association with the construction of
the third runway expansion for the Hong Kong International Airport. The EPD
issued a memo and confirmed that they had no objection on the revised transect
lines on 28 July 2017. The alternative dolphin transect lines are adopted
starting from August¡¦s dolphin monitoring.
The role and responsibilities as the ET Leader of the Contract was
temporarily taken up by Mr Willie Wong instead of Ms Claudine Lee from 25
September 2017 to 31 December 2017.
Water quality
monitoring station SR10A(N) (Coordinate: 823644E, 823484N) was
unreachable on 4 October 2017 during flood tide as fishing activities were
observed. As such, the water monitoring at station SR10A(N)
was conducted at Coordinate: 823484E, 823593N during flood tide on 4 October
2017 temporarily.
The topographical condition of the water monitoring
stations SR3 (Coordinate: 810525E, 816456N), SR4 (Coordinate: 814760E,
817867N), SR10A (Coordinate: 823741E, 823495N) and SR10B (Coordinate: 823686E,
823213N) cannot be accessed safely for undertaking water quality monitoring.
The water quality monitoring has been temporarily conducted at alternative
stations, namely SR3(N) (Coordinate 810689E, 816591N),
SR4(N) (Coordinate: 814705E, 817859N) and SR10A(N) (Coordinate: 823644E,
823484N) since 1 September 2017. The water quality monitoring at station SR10B
was temporarily conducted at Coordinate: 823683E, 823187N on 1, 4, 6, 8
September 2017 and has been temporarily fine-tuned to alternative station SR10B(N2) (Coordinate: 823689E, 823159N) since 11 September
2017. Proposal for permanently relocating the aforementioned stations was
approved by EPD on 8 January 2018.
¡P
The future key issues
include potential noise, air quality, water quality and ecological impacts and
waste management arising from the following construction activities to be
undertaken in the upcoming month:Removal
of toe loading at Portion X
¡P
Works for Diversion of
Airport Road;
¡P
Finishing Works for
Highway Operation and Maintenance Area Building at Portion X; and
¡P
Finishing Works for
Scenic Hill Tunnel West Portal Ventilation building at West Portal.
¡P
New reclamation
along the east coast of the approximately 23 hectares.
¡P
Tunnel of Scenic
Hill (Tunnel SHT) from Scenic Hill to the new reclamation, of approximately 1km
in length with three (3) lanes for the east bound carriageway heading to the
HKBCF and four (4) lanes for the westbound carriageway heading to the HZMB Main
Bridge.
¡P
An abutment of the
viaduct portion of the HKLR at the west portal of Tunnel SHT and associated
road works at the west portal of Tunnel SHT.
¡P
An at grade road on
the new reclamation along the east coast of the HKIA to connect with the HKBCF,
of approximately 1.6 km along dual 3-lane carriageway with hard shoulder for
each bound.
¡P
Road links between
the HKBCF and the HKIA including new roads and the modification of existing
roads at the HKIA, involving viaducts, at grade roads and a Tunnel HAT.
¡P
A highway operation
and maintenance area (HMA) located on the new reclamation, south of the
Dragonair Headquarters Building, including the construction of buildings,
connection roads and other associated facilities.
¡P
Associated civil,
structural, building, geotechnical, marine, environmental protection,
landscaping, drainage and sewerage, tunnel and highway electrical and
mechanical works, together with the installation of street lightings, traffic
aids and sign gantries, water mains and fire hydrants, provision of facilities
for installation of traffic control and surveillance system (TCSS),
reprovisioning works of affected existing facilities, implementation of
transplanting, compensatory planting and protection of existing trees, and
implementation of an environmental monitoring and audit (EM&A) program.
Table
1.1 Contact
Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
Supervising Officer¡¦s Representative |
(Chief Resident Engineer, CRE) |
Robert Antony Evans |
3968 0801 |
2109 1882 |
Environmental Project Office / Independent
Environmental Checker |
Environmental Project Office Leader |
Y. H. Hui |
3465 2888 |
3465 2899 |
Independent Environmental Checker |
Antony Wong |
3465 2888 |
3465 2899 |
|
Contractor |
Project Manager |
S. Y. Tse |
3968 7002 |
2109 2588 |
Environmental Officer |
Federick Wong |
3968 7117 |
2109 2588 |
|
Environmental Team |
Environmental Team Leader |
Claudine Lee |
2241 9847 |
2815 3377 |
Environmental Team |
Deputy Environmental Team Leader |
Willie Wong |
2241 9821 |
2815 3377 |
24 hours
complaint hotline |
--- |
--- |
5699 5730 |
--- |
Remark: 1) Ramboll
Environ Hong Kong Limited has been re-branded as Ramboll Hong
Kong Limited since January 2018. |
Table
1.2 Construction
Activities During Reporting Month
Description of Activities |
Site Area |
Removal of Stockpiling |
WA7 |
Dismantling/trimming of temporary 40mm stone platform for construction
of seawall |
Portion X |
Construction of seawall |
Portion X |
Loading and unloading of filling materials |
Portion X |
Backfilling at Scenic Hill Tunnel (Cut & Cover Tunnel) |
Portion X |
E&M/ Backfilling/ Bitumen works for HKBCF
to Airport Tunnel (Mined Tunnel) |
Portion X |
Works for diversion |
Airport Road |
Utilities detection |
Airport Road/
Airport Express Line/ East Coast Road |
Establishment of site access |
Airport Road/
Airport Express Line/ East Coast Road |
E&M/ Backfilling/ Bitumen works for HKBCF
to Airport Tunnel West (Cut & Cover Tunnel) |
Airport Road |
E&M/ Backfilling/ Bitumen works for HKBCF
to Airport Tunnel East ( Cut & Cover Tunnel) |
Portion X |
Finishing works for Highway Operation and Maintenance Area Building |
Portion X |
Finishing works for Scenic Hill Tunnel West Portal Ventilation
building |
West Portal |
Table
2.1 Action
and Limit Levels for 1-hour TSP
Monitoring
Station |
Action Level,
µg/m3 |
Limit Level,
µg/m3 |
AMS 5 ¡V Ma Wan Chung Village (Tung Chung) |
352 |
500 |
AMS 6 ¡V Dragonair / CNAC (Group) Building (HKIA) |
360 |
Table
2.2 Action
and Limit Levels for 24-hour TSP
Monitoring
Station |
Action Level,
µg/m3 |
Limit Level,
µg/m3 |
AMS 5 ¡V Ma Wan Chung Village (Tung Chung) |
164 |
260 |
AMS 6 ¡V Dragonair / CNAC (Group) Building (HKIA) |
173 |
260 |
Table
2.3 Air
Quality Monitoring Equipment
Equipment |
Brand and
Model |
Portable direct reading
dust meter (1-hour TSP) |
Sibata Digital Dust
Monitor (Model No. LD-3B) |
High Volume Sampler |
Tisch Environmental
Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Air
Sampler (Model No. TE-5170) |
Table
2.4 Locations
of Impact Air Quality Monitoring Stations
Monitoring Station |
Location |
AMS5 |
Ma Wan Chung Village
(Tung Chung) |
AMS6 |
Dragonair / CNAC
(Group) Building (HKIA) |
Table
2.5 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 |
(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) The distance between the HVS and any obstacles,
such as buildings, was at least twice the height that the obstacle protrudes
above the HVS.
(iii) A minimum of 2 meters separation from walls,
parapets and penthouse for rooftop sampler was provided.
(iv) No furnace or incinerator flues are nearby.
(v) Airflow around the sampler was unrestricted.
(vi) Permission was obtained to set up the samplers and access to
the monitoring stations.
(vii) A secured supply of electricity was obtained to
operate the samplers.
(viii) The sampler was located more than 20 meters from any
dripline.
(ix) Any wire fence and gate, required to protect the
sampler, did not obstruct the monitoring process.
(x) 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
(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 aluminium 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 for HKLR (Version 1.0) (i.e. 0.6-1.7 m3/min).
(x) The programmable digital timer was set for a
sampling period of 24 hours, 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
(iii) Calibration certificate of the HVSs are provided in
Appendix C.
(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 Tisch
Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High
Volume Air Sampler. Calibration certificates of the Laser Dust Monitors are
provided in Appendix C.
Table 2.6 Summary of 1-hour TSP
Monitoring Results During the Reporting Month
Monitoring Station |
Average (mg/m3) |
Range (mg/m3) |
Action Level (mg/m3) |
Limit Level (mg/m3) |
AMS5 |
108 |
16 ¡V 398 |
352 |
500 |
AMS6 |
117 |
15 ¡V 412 |
360 |
500 |
Table
2.7 Summary
of 24-hour
TSP Monitoring Results During the Reporting Month
Monitoring
Station |
Average (mg/m3) |
Range (mg/m3) |
Action
Level (mg/m3) |
Limit Level (mg/m3) |
AMS5 |
54 |
44 ¡V 67 |
164 |
260 |
AMS6 |
77 |
62 ¡V 100 |
173 |
260 |
Table 3.1 Action
and Limit Levels for Noise during Construction Period
Monitoring Station |
Time Period |
Action Level |
Limit Level |
NMS5 ¡V Ma Wan
Chung Village (Ma Wan Chung Resident Association) (Tung Chung) |
0700-1900
hours on normal weekdays |
When one
documented complaint is received |
75 dB(A) |
Table 3.2 Noise
Monitoring Equipment
Equipment |
Brand and Model |
Integrated
Sound Level Meter |
B&K 2238 |
Acoustic
Calibrator |
B&K 4231 |
Table 3.3 Locations
of Impact Noise Monitoring Stations
Monitoring Station |
Location |
NMS5 |
Ma Wan Chung
Village (Ma Wan Chung Resident Association) (Tung Chung) |
Table 3.4 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 |
(a) The sound level
meter was set on a tripod at a height of
(b) The battery
condition was checked to ensure the correct functioning of the meter.
(c)
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
(d) Prior to and
after each noise measurement, the meter was calibrated using the acoustic
calibrator for 94.0 dB(A) at 1000 Hz.
If the difference in the calibration level before and after measurement
was more than 1.0 dB(A), the measurement would be considered invalid and repeat
of noise measurement would be required after re-calibration or repair of the
equipment.
(e) 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.
(f) 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.
(g) Noise monitoring
was cancelled in the presence of fog, rain, wind with a steady speed exceeding
(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 C.
Table
3.5 Summary
of Construction Noise Monitoring Results During the Reporting Month
Monitoring
Station |
Average Leq
(30 mins), dB(A) |
Range of Leq (30 mins), dB(A) |
Limit Level Leq (30 mins), dB(A) |
NMS5 |
58 |
57 ¡V 60 |
75 |
Table 4.1 Action
and Limit Levels for Water Quality
Parameter (unit) |
Water Depth |
Action Level |
Limit Level |
Dissolved
Oxygen (mg/L) (surface, middle and bottom) |
Surface and
Middle |
5.0 |
4.2 except 5
for Fish Culture Zone |
Bottom |
4.7 |
3.6 |
|
Turbidity
(NTU) |
Depth average |
27.5 or 120%
of upstream control station¡¦s turbidity at the same tide of the same day; The action
level has been amended to ¡§27.5 and 120% of upstream control
station¡¦s turbidity at the same tide of the same day¡¨ since 25 March 2013. |
47.0 or 130%
of turbidity at the upstream control station at the same tide of same day; The limit
level has been amended to ¡§47.0 and 130% of turbidity at the
upstream control station at the same tide of same day¡¨ since 25 March 2013. |
Suspended
Solid (SS) (mg/L) |
Depth average |
23.5 or 120%
of upstream control station¡¦s SS at the same tide of the same day; The action
level has been amended to ¡§23.5 and 120% of upstream control
station¡¦s SS at the same tide of the same day¡¨ since 25 March 2013. |
34.4 or 130%
of SS at the upstream control station at the same tide of same day and 10mg/L
for Water Services Department Seawater Intakes; The limit
level has been amended to ¡§34.4 and 130% of SS at the upstream
control station at the same tide of same day and 10mg/L for Water Services
Department Seawater Intakes¡¨ since 25 March 2013 |
Notes:
(1) Depth-averaged
is calculated by taking the arithmetic means of reading of all three depths.
(2) For DO,
non-compliance of the water quality limit occurs when monitoring result is
lower that the limit.
(3) For SS
& turbidity non-compliance of the water quality limits occur when
monitoring result is higher than the limits.
(4) The change
to the Action and limit Levels for Water Quality Monitoring for the EM&A
works was approved by EPD on 25 March 2013.
Table 4.2 Water
Quality Monitoring Equipment
Equipment |
Brand and Model |
DO and
Temperature Meter, Salinity Meter, Turbidimeter and pH Meter |
YSI Model 6820 |
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 |
Table 4.3 Impact
Water Quality Monitoring Parameters and Frequency
Monitoring Stations |
Parameter, unit |
Frequency |
No. of depth |
Impact Stations: Control/Far Field
Stations: Sensitive Receiver Stations: |
¡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). |
Table 4.4 Impact
Water Quality Monitoring Stations
Monitoring Stations |
Description |
Coordinates |
|
Easting |
Northing |
||
IS5 |
Impact Station
(Close to HKLR construction site) |
811579 |
817106 |
IS(Mf)6 |
Impact Station
(Close to HKLR 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(N) |
Impact Station
(Close to HKBCF construction site) |
812942 |
820881 |
SR3 |
Sensitive
Receivers (San Tau SSSI) |
810525 |
816456 |
SR3(N) |
Sensitive
receivers (San Tau SSSI) |
810689 |
816591 |
SR4 |
Sensitive
Receivers (Tai Ho Inlet) |
814760 |
817867 |
SR4(N) |
Sensitive
receivers (Tai Ho Inlet) |
814705 |
817859 |
SR5(N) |
Sensitive
Receivers (Artificial Reef in NE Airport) |
812569 |
821475 |
SR10A |
Sensitive
Receivers (Ma Wan Fish Culture Zone) |
823741 |
823495 |
SR10A(N) |
Sensitive
receivers (Ma Wan Fish Culture Zone) |
823644 |
823484 |
SR10B |
Sensitive
Receivers (Ma Wan Fish Culture Zone) |
823686 |
823213 |
SR10B(N2) |
Sensitive
receivers (Ma Wan Fish Culture Zone) |
823689 |
823159 |
CS2(A) |
Control
Station (Mid-Ebb) |
805232 |
818606 |
CS(Mf)5 |
Control
Station (Mid-Flood) |
817990 |
821129 |
Remark: 1) The
topographical condition of four monitoring stations -SR3 (Coordinate:
810525E, 816456N), SR4 (Coordinate: 814760E, 817867N, SR10A(823741E, 823495N)
and SR10B(Coordinate: 823686E, 823213N ) cannot be accessed safely for
undertaking water quality monitoring. Water quality monitoring has been
conducted at alternative stations, namely SR3(N) (Coordinate: 810689E,
816591N), SR4(N) (Coordinate: 814705E, 817859N), SR10A(N) (Coordinate:
823644E, 823484N) and SR10B(N2) (Coordinate: 823689E, 823159N). Proposal for permanently relocating
the aforementioned stations was approved by EPD on 8 January 2018. 2) Due to
rough sea condition on 31 January 2018, the water quality monitoring at
Station IS10(N) was temporarily conducted at coordinate: 812886E, 820855N
during mid flood tide while the water quality monitoring at Station SR5(N)
was temporarily conducted at coordinate: 812557E, 821522N during mid flood
tide. |
(a) The
in-situ water quality parameters including dissolved oxygen, temperature,
salinity and turbidity, pH were measured by multi-parameter meters.
(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.
(f) The analysis method and detection limit for
SS is shown in Table 4.5.
Table
4.5 Laboratory Analysis
for Suspended Solids
Parameters |
Instrumentation |
Analytical Method |
Detection Limit |
Suspended
Solid (SS) |
Weighting |
APHA 2540-D |
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.
Station |
Exceedance Level |
DO (S&M) |
DO (Bottom) |
Turbidity |
SS |
Total number of exceedances |
|||||
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
||
IS5 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
IS(Mf)6 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
IS7 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
IS8 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
8-1-2018 |
22-1-2018 24-1-2018 |
1 |
2 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
IS(Mf)9 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
IS10(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
SR3/ SR3(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
SR4/ SR4(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
SR5(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
SR10A/ SR10A(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
SR10B/ SR10B(N2) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
Total |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
2 |
3** |
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0** |
Notes:
S: Surface;
M: Mid-depth;
** The total number of exceedances
1) The
topographical condition of four monitoring stations (SR3, SR4, SR10A and SR10B)
cannot be accessed safely for undertaking water quality monitoring. Water
quality monitoring has been conducted at alternative stations, namely SR3(N)
(Coordinate: 810689E, 816591N), SR4(N) (Coordinate: 814705E, 817859N), SR10A(N)
(Coordinate: 823644E, 823484N) and SR10B(N2) (Coordinate: 823689E, 823159N).
Proposal for permanently relocating the aforementioned stations was approved by
EPD on 8 January 2018.
Table 5.1 Action
and Limit Levels for Dolphin Monitoring
|
North Lantau Social Cluster |
|
NEL |
NWL |
|
Action Level |
STG < 4.2 & ANI < 15.5 |
STG < 6.9
& ANI < 31.3 |
Limit Level |
(STG < 2.4
& ANI < 8.9) and (STG < 3.9 & ANI < 17.9) |
Remarks:
1. STG means quarterly encounter rate of number of dolphin sightings.
2. ANI means quarterly encounter rate of total number of dolphins.
3. For North Lantau Social Cluster, AL will be trigger if either NEL or NWL fall below the criteria; LL will
be triggered if both NEL and NWL
fall below the criteria.
Table 5.2 Co-ordinates
of Transect Lines
Line No. |
Easting |
Northing |
|
Line No. |
Easting |
Northing |
||
1 |
Start Point |
804671 |
815456 |
|
13 |
Start Point |
816506 |
819480 |
1 |
End Point |
804671 |
831404 |
|
13 |
End Point |
816506 |
824859 |
2 |
Start Point |
805476 |
820800* |
|
14 |
Start Point |
817537 |
820220 |
2 |
End Point |
805476 |
826654 |
|
14 |
End Point |
817537 |
824613 |
3 |
Start Point |
806464 |
821150* |
|
15 |
Start Point |
818568 |
820735 |
3 |
End Point |
806464 |
822911 |
|
15 |
End Point |
818568 |
824433 |
4 |
Start Point |
807518 |
821500* |
|
16 |
Start Point |
819532 |
821420 |
4 |
End Point |
807518 |
829230 |
|
16 |
End Point |
819532 |
824209 |
5 |
Start Point |
808504 |
821850* |
|
17 |
Start Point |
820451 |
822125 |
5 |
End Point |
808504 |
828602 |
|
17 |
End Point |
820451 |
823671 |
6 |
Start Point |
809490 |
822150* |
|
18 |
Start Point |
821504 |
822371 |
6 |
End Point |
809490 |
825352 |
|
18 |
End Point |
821504 |
823761 |
7 |
Start Point |
810499 |
822000* |
|
19 |
Start Point |
822513 |
823268 |
7 |
End Point |
810499 |
824613 |
|
19 |
End Point |
822513 |
824321 |
8 |
Start Point |
811508 |
821123 |
|
20 |
Start Point |
823477 |
823402 |
8 |
End Point |
811508 |
824254 |
|
20 |
End Point |
823477 |
824613 |
9 |
Start Point |
812516 |
821303 |
|
21 |
Start Point |
805476 |
827081 |
9 |
End Point |
812516 |
824254 |
|
21 |
End Point |
805476 |
830562 |
10 |
Start Point |
813525 |
821176 |
|
22 |
Start Point |
806464 |
824033 |
10 |
End Point |
813525 |
824657 |
|
22 |
End Point |
806464 |
829598 |
11 |
Start Point |
814556 |
818853 |
|
23 |
Start Point |
814559 |
821739 |
11 |
End Point |
814556 |
820992 |
|
23 |
End Point |
814559 |
824768 |
12 |
Start Point |
815542 |
818807 |
|
24* |
Start
Point |
805476* |
815900* |
12 |
End Point |
815542 |
824882 |
|
24* |
End
Point |
805476* |
819100* |
Note:
Co-ordinates in red and marked with asterisk are revised co-ordinates of
transect line.
Table 5.3 Individual
Survey Event Encounter Rates
|
Encounter rate (STG) (no. of on-effort
dolphin sightings per 100 km of survey effort) |
Encounter rate (ANI) (no. of dolphins from
all on-effort sightings per 100 km of survey effort) |
|
Primary Lines Only |
Primary Lines Only |
||
NEL |
Set 1: January 2nd / 8th |
0.0 |
0.0 |
Set 2: January 16th / 25th |
0.0 |
0.0 |
|
NWL |
Set 1: January 2nd / 8th |
5.7 |
45.4 |
Set 2: January 16th / 25th |
3.4 |
3.4 |
Remark:
1. Dolphin Encounter Rates Deduced from the Two Sets
of Surveys (Two Surveys in Each Set) in January 2018 in Northeast Lantau (NEL)
and Northwest Lantau (NWL).
Table 5.4 Monthly
Average Encounter Rates
|
Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort) |
Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey
effort) |
||
Primary Lines Only |
Both Primary and
Secondary Lines |
Primary Lines Only |
Both Primary and Secondary Lines |
|
Northeast Lantau |
0.0 |
0.0 |
0.0 |
0.0 |
Northwest Lantau |
4.3 |
3.2 |
19.2 |
14.3 |
Remark:
1.
Monthly Average Dolphin Encounter Rates (Sightings Per 100 km of
Survey Effort) from All Four Surveys Conducted in January 2018 on Primary Lines only as well as Both Primary Lines
and Secondary Lines in Northeast Lantau (NEL) and Northwest Lantau (NWL).
Table 6.1 Summary
of Environmental Site Inspections
Date of Audit |
Observations |
Actions Taken
by Contractor / Recommendation |
Date of
Observations Closed |
30 Dec 2017 |
1. Drip tray was not provided for oil drum at
Depressed Roundabout of S16. 2. Access road was appeared dry at N20A. 3. Wheel washing was
observed insufficient at N30. 4. Drip tray was not
provided for chemical containers at N30. 5.
Wheel washing was observed insufficient at S16. 6.
Stagnant water was observed at S16. 7.
No water spraying on stockpile during excavation at
S16. 8.
Waste was observed at S16. 9.
Waste was observed at S15. 10. Waste was observed at
Depressed Roundabout of S16. |
1. The oil drum was removed
from Depressed Roundabout at S16. 2. Water spraying
was provided to the access road at N20A. 3. Wheel washing facilities with high pressure water jet was provided to clean
the vehicles before leaving the work area at N30. 4. The chemical
containers were removed from N30. 5. Wheel washing facilities with high pressure water jet was provided to clean the
of vehicles before leaving the work area at S16. 6. The stagnant water was
removed at S16. 7. The stockpile was removed
at S16. 8. The waste was cleared at
S16. 9. The waste was removed at
S15. 10.
The waste was removed at Depressed Roundabout of
S16. |
3 Jan 2018 |
3 Jan 2018 |
1.
Dust emission was observed during vehicles movement
at N26. 2. Gap of silt curtains was
observed at Portion X. 3. Construction waste was
observed on the ground at N20. 4. Construction waste was
observed on the ground at S15. 5. Chemical drums were observed
without drip tray at HAT. |
1. Water spraying was
provided at the road of N26 to reduce dust emission. 2. The silt curtains were
maintained at Portion X. 3. The construction waste
was removed from N20. 4. The construction waste
was removed from S15. 5. The chemical drums were
removed from HAT. |
10 Jan 2018 |
10 Jan 2018 |
1.
Wastewater from the site was not controlled properly to prevent
discharge entering into marine water at S7. 2.
Construction waste was accumulated on the ground at S15. 3.
Construction waste was observed at Plant room of S15. 4.
Construction waste was accumulated on the ground at S9. 5.
Chemical containers were observed without drip tray at S7. |
1.
Proper bunding were
set up to prevent wastewater from the site entering into marine water at S7. 2.
The construction
waste at was removed from S15. 3.
The construction
waste was removed from Plant Room of S15. 4.
The construction
waste was removed from S9. 5. The chemical
containers were removed from S7. |
17Jan 2018 |
17 Jan 2018 |
1.
Mud was observed on the paved haul road at N26. 2.
Construction waste was observed at Plant Room of S15. 3.
Construction waste was observed at HAT. |
1.
Mud was cleared on
the paved haul road at N26. 2.
The construction
waste was removed from Plant Room of S15. 3.
The construction waste
was removed from HAT. |
26 Jan 2018 |
26 Jan 2018 |
1.
Waste was observed at HAT. 2.
No drip tray was provided to chemical containers at HAT. 3.
No drip tray was provided to chemical containers at S16. 4.
Waste was observed at S16. 5.
Stagnant water was observed inside the drip tray next to a generator
at S16. 6.
Abandoned cement bags was observed at S16. |
The
Contractor was recommended to: 1. remove the waste promptly at HAT. 2. provide drip tray for the
chemical containers at HAT. 3. provide drip tray for the
chemical containers at S16. 4. remove the waste promptly at S16. 5. remove stagnant water
from the drip tray next to the generator at S16. 6. remove the abandoned
cement bags at S16. |
Follow-up actions for
the observations issued for the last weekly site inspection of
the reporting month will be inspected during the next site inspection. |
Table 7.1 Construction
Activities for February 2018
Site
Area |
Description
of Activities |
Portion X |
Removal of Toe
Loading |
Portion X |
Dismantling/Trimming
of Temporary 40mm Stone Platform for Construction of Seawall |
Portion X |
Construction
of Seawall |
Portion X |
Loading and
Unloading of Filling Materials |
Portion X |
Backfilling at
Scenic Hill Tunnel (Cut & Cover Tunnel) |
Portion X |
Excavation for
HKBCF to Airport Tunnel & Construction of Tunnel Box structure |
Airport Road |
Works for
Diversion of Airport Road |
Airport Road /
Airport Express Line / East Coast Road |
Utilities
Detection |
Airport Road /
Airport Express Line/ East Coast Road |
Establishment
of Site Access |
Airport Road |
E&M/ Backfilling/ Bitumen works for HKBCF to Airport Tunnel West
(Cut & Cover Tunnel) |
Portion X |
E&M/ Backfilling/ Bitumen works for HKBCF to Airport Tunnel East
(Cut & Cover Tunnel) |
Portion X |
Finishing
works for Highway Operation and Maintenance Area Building |
West Portal |
Finishing
Works for Scenic Hill Tunnel West Portal Ventilation building |