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.59 (Aug 2017)
14 September 2017
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 H Dolphin
Monitoring Results
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 Summons and Prosecutions¡¨
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 fifty-ninth 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
August 2017.
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 for the Contract during this reporting month is
listed below:
1-hr TSP
Monitoring |
4, 10, 16, 22 and 28 August 2017 |
24-hr TSP
Monitoring at AMS5 |
3, 9, 15, 21, 26 and 31 August 2017 |
24-hr TSP
Monitoring at AMS6 |
3, 9, 15, 21, 25 and 31 August 2017 |
Noise
Monitoring |
10, 16, 22 and 28 August 2017 |
Water Quality
Monitoring |
25, 28 and 31 August 2017 |
Chinese White
Dolphin Monitoring |
7, 15, 21 and
31
August 2017 |
Site
Inspection |
2, 9, 16, 24
and 29 August 2017 |
The 24-hour TSP
monitoring at AMS5 was rescheduled from 25 August 2017 to 26 August 2017 due to
power outage of Ma Wan Chung Village caused by seawater engulfment.
The monitoring
schedule of water quality monitoring for all stations except station CS2 were
adopted from the published Monthly Environmental Monitoring and Audit
(EM&A) Report for August 2017 prepared for Contract No. HY/2010/02 Hong
Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Reclamation
Works. The monitoring schedule of water quality monitoring for station CS2 was
adopted from the published Monthly EM&A Report for Auugust 2017 prepared by
Contract No. HY/2011/09 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road ¡V
Section between HKSAR Boundary and Scenic Hill.
A new water
quality monitoring team has been employed for carrying out water quality
monitoring work for the Contract starting from 23 August 2017. The water
quality monitoring on 23 August 2017 was cancelled due to hoisting of typhoon
signal No. 8 or above. No substitute monitoring was conducted is due to boat
availability.
Due to a
schedule conflict, the dolphin monitoring was rescheduled from 10 August 2017
to 7 August 2017. Due to boat availability, the dolphin moniotring was rescheduled from 16
August 2017 to 15 August 2017. Due to weather condition and boat availability,
the dolphin monitoring was rescheduled from 25 August 2017 to 31 August 2017.
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 |
0 |
0 |
24-hr TSP |
0 |
0 |
|
Noise |
Leq (30 min) |
0 |
0 |
Water Quality |
Suspended solids level (SS) |
0 |
0 |
Turbidity level |
0 |
0 |
|
Dissolved oxygen level (DO) |
0 |
0 |
|
Dolphin Monitoring |
Quarterly Analysis (June 2017 to
August 2017) |
0 |
1 |
There was a Limit Level exceedance
of dolphin monitoring for the quarterly monitoring data (between June 2017 and
August 2017). The exceedance will be reported in the quarterly report for June
2017 to August 2017.
Complaint
Log
There was one complaint
received in relation to the environmental impacts during the reporting period. A summary of
environmental complaint for this reporting month is as follows:
Environmental Complaint No. |
Date of Complaint Received |
Description of Environmental Complaints |
COM-2016-095(4) |
15 August 2017 |
Noise nuisance near Dragonair / CNAC (Group) Building (HKIA) |
For Environmental Complaint
No. COM-2016-095(4), complaint investigation was undertaken. Based on the
investigation result, it was likely that concerned noise emission was due to the
minor rock breaking/ trimming works by the hydraulic breaker. It is considered
that the complaint is likely related to Contract No. HY/2011/03. According to
Contractor¡¦s information, no substantial rock breaking works will be conducted
at near CNAC Tower. Only minor rock breaking/ trimming work may be occasionally
conducted at the concerned work area. The Contractor has been recommended to
implement the following measures to minimize the potential noise impact when
minor rock breaking/ trimming work to be conducted:
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.
Technical issues have been
observed from impact monitoring of the Contract between 1 August 2017 and 22
August 2017 and thus published information from Monthly EM&A Report for
August 2017 prepared for Contract No. HY/2010/02 and Contract No. HY/2011/09
were adopted for the Contract.
Water level at water
quality monitoring station SR3 (Coodinate: 810525E, 816456N) is low. As such,
water sampling team members are required to interchange to a smaller boat to
carry out water sampling work, which poses the risk of team members¡¦ falling
into the sea. Due to safety reason, the monitoring station SR3 was relocated to
SR3(N) (Coordinate 816595N, 810689E) on 25 and 28 August 2017 and was
fine-tuned to Coordiante: 816591E, 810689N since 30 August 2017.
Water level at water
quality monitoring station SR4 (Coorinate:814760E, 817867N) is low and is
located onshore sometimes. Water sampling cannot be collected potentially. The
vessel may ground during navigation in shallow waters, hitting underwater
boulder / obstacles which may jeopardize the safety of all people in the
sampling vessel. Due to safety reason, the monitoring station SR4 was relocated
to SR4(N) (Coordinate: 814705E, 817859N) since 25 August 2017.
Water quality monitoring
station SR10A (823741E, 823495N) locates inside a mariculture raft. Water
sampling team members are required to interchange to a smaller boat to carry
out water sampling work, which poses the risk of team members¡¦ falling into the
sea. Due to safety reason, the monitoring station SR10A was relocated to
SR10A(N) (Coordinate: 823616E, 823487N) on 25 and 28 August 2017 and was fine-tuned to Coordinate 823644E and 823484N since
30 August 2017.
Since sampling work is
conducted near rocks in the sea at SR10B (Coordinate: 823686E, 823213N), the vessel
may ground during navigation in shallow waters, hitting underwater boulder /
obstacles which may jeopardize the safety of all people in the sampling vessel.
Due to safety reason, the monitoring station SR10B was relocated to SR10B(N)
(Coordinate: 823683E, 823187N) since 25 August 2017.
The relocated stations at
SR3(N), SR4(N) SR10A(N) and SR10B(N) will be located
to as close to the original sensitive receiver stations as possible. So, the relocated
stations at SR3(N), SR4(N) SR10A(N) and SR10B(N) are
representative. Same baseline and Action/ Limit Level for water quality
monitoring, as derived from the baseline monitoring data recorded, will be
adopted for these alternative water quality monitoring stations for the Contract.
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.
Future
Key Issues
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:
¡P
Stockpiling at WA7;
¡P
Removal of toe loading at Portion X;
¡P
Works for Diversion of Airport Road;
¡P
Construction
of Tunnel Box Structure at Shaft 3 Extension North Shaft;
¡P
Superstructure & 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 |
24 hours complaint hotline |
--- |
--- |
5699 5730 |
--- |
Table 1.2 Construction
Activities During Reporting Month
Description of Activities |
Site Area |
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 |
Excavation for HKBCF to Airport Tunnel &
construction of tunnel box structure |
Portion X |
Excavation for diversion of culvert PR14 |
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 |
Mined tunnel lining / box jacking transition zone
rebar fixing underneath Airport Road and Airport Express Line |
Airport
Road and Airport
Express Line |
Construction of Tunnel box structure |
Shaft 3
Extension North Shaft |
Excavation and lateral support works & Construction of Tunnel Box
Structure for HKBCF to Airport Tunnel West (Cut & Cover Tunnel) |
Airport Road |
Excavation and lateral support works & construction of tunnel box
structure for HKBCF to Airport Tunnel East (Cut & Cover Tunnel) |
Portion X |
Sub-structure, superstructure and finishing works for Highway
Operation and Maintenance Area Building |
Portion X |
Superstructure & 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 |
45 |
10 ¡V 200 |
352 |
500 |
AMS6 |
38 |
11 ¡V 142 |
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 |
38 |
17 ¡V 60 |
164 |
260 |
AMS6 |
55 |
33 ¡V 105 |
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 |
57 |
56 ¡V 57 |
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 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 4.3 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(N) |
Sensitive
receivers (Ma Wan Fish Culture Zone) |
823683 |
823187 |
CS2 |
Control
Station (Mid-Ebb) |
805849 |
818780 |
CS2(A) |
Control
Station (Mid-Ebb) |
805232 |
818606 |
CS(Mf)5 |
Control
Station (Mid-Flood) |
817990 |
821129 |
Remarks: 1)
Technical issues have been observed from impact monitoring of the
Contract and thus published informatin from Monthly EM&A Report for August 2017 prepared for Contract No. HY/2010/02 and Contract No. HY/2011/09 were
adopted for the Contract.
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.
3) Due to marine work of the Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project), original locations of water quality monitoring stations SR5 and IS10 are enclosed by works boundary of 3RS Project. Alternative impact water quality monitoring stations, naming as SR5(N) and IS10(N) was approved in 12 May 2017 and were adopted starting from 15 May 2017 to replace the original locations of water quality monitoring for Contract No. HY/2010/02. |
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: August 7th / 15th |
0.0 |
0.0 |
Set 2: August 21st / 31st |
0.0 |
0.0 |
|
NWL |
Set 1: August 7th / 15th |
5.0 |
6.6 |
Set 2: August 21st / 31st |
6.6 |
18.1 |
Remarks:
1. Dolphin Encounter Rates
Deduced from the Two Sets of Surveys (Two Surveys in Each Set) in August 2017 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 |
5.8 |
4.8 |
12.4 |
10.8 |
Remarks:
1. Monthly Average Dolphin
Encounter Rates (Sightings Per 100 km of Survey Effort) from All Four Surveys
Conducted in August 2017 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 |
28 Jul 2017 |
1. Waste was observed at Cut & Cover. 2. Silt curtain with gap was observed at Portion X. 3. No proper cover for the stored cement bags was observed
at Ventilation Building. 4. Waste was observed at Ventilation Building. 5. Stagnant water was observed at Ventilation Building. |
1. The waste was removed from Cut & Cover. 2. The gaps of silt curtain were closed at Portion X. 3. The cement bags were covered properly at Ventilation
Building. 4. The waste was removed from Ventilation Building. 5. The stagnant water was removed from Ventilation Building. |
2 Aug 2017 |
2 Aug 2017 |
1. Gaps of silt curtain were observed at Portion X. 2. Dust was emitted from an unpaved road at S16. 3. Waste
was observed at N30. 4. Waste
was observed at S15. 5. Waste was
observed at S25. 6. No drip tray was provided for the chemical containers at
S25. |
1. The gaps of silt curtain were closed at Portion X. 2. Water spraying was provided for the unpaved road to
prevent dust emission at S16. 3. The waste was removed from N30. 4. The waste was removed from S15. 5. The waste was removed from S25. 6. The chemical containers were removed from S25. |
9 Aug 2017 |
9 Aug 2017 |
1. Oil
container was found without drip tray and labelling at Cut & Cover. 2. Stagnant
water was observed at HAT. 3. Gaps of silt
curtains were observed at Portion X. 4. Stagnant
water was observed at S15. 5. Dusty
material was observed without cover at West Portal. 6. Abandoned
blue hose was observed at West Portal. |
1. The oil
container was removed from Cut & Cover. 2. The stagnant
water was removed from HAT. 3. The gaps of
silt curtain were closed at Portion X. 4. The stagnant
water was removed from S15. 5. The dust
material was removed from West Portal. 6. The abandoned
blue hose was removed from West Portal. |
16 Aug 2017 |
16 Aug 2017 |
1. Waste was
observed at HMA. 2. Gaps of silt curtain were observed at Portion X. 3. Waste
was observed at S16. 4. Oil drums were observed without drip tray at S16. |
1. The waste
was removed from HMA. 2. The gaps of
silt curtain were closed at Portion X. 3. The waste
was removed from S16. 4. Drip tray
was provided for the oil drums at S16. |
24 Aug 2017 |
24 Aug 2017 |
1. Waste
was observed at HAT. 2. Chemical containers were observed without drip tray at
HAT. 3. Stagnant water was observed at S15. 4. Unpaved road was appeared dried at S11. 5. Motors of air compressor were not enclosed at S15. 6. Oil drums were observed without drip tray at S11. 7. Concrete waste was observed at S16. |
1. The waste was removed from HAT. 2. The chemical containers were removed from HAT. 3. The stagnant water was removed from S15. 4. Regular water spraying was provided for the unpaved road
at S11. 5. The door of air compressor was closed at S15. 6. The oil drums were removed from S11. 7. The concrete waste was removed from S16. |
29 Aug 2017 |
29 Aug 2017 |
1. Waste was observed at Ventilation
Building. 2. More than 20 bags of cement were not properly
covered at Ventilation Building. 3. Chemical container was observed without
drip tray at Ventilation Building. 4. Waste was observed at N1. |
The Contractor was recommended to: 1. Remove the waste at Ventilation
Building. 2. Cover the cement bags using impervious
sheeting at Ventilation Building. 3. Provide drip tray for the chemical
container at Ventilation Building. 4. Remove the waste at N1. |
Follow-up actions for the observations issued for the last
weekly site inspection of the reporting month will be inspected during the
next site inspections. |
Table 6.2 A
Summary of Environmental Complaint for the Reporting Month
Environmental Complaint No. |
Date of Complaint Received |
Description of Environmental Complaint |
COM-2016-095(4) |
15 August 2017 |
Noise nuisances
near Dragonair / CNAC (Group) Building (HKIA) |
Table
7.1 Construction
Activities for September 2017
Site Area |
Description of
Activities |
WA7 |
Stockpiling |
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 |
Portion X |
Excavation for
Diversion of Culvert PR14 |
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 |
Shaft 3
Extension North Shaft |
Construction
of Tunnel Box Structure |
Airport Road |
Excavation and
Lateral Support Works & Construction of Tunnel Box Structure for HKBCF to
Airport Tunnel West (Cut & Cover Tunnel) |
Portion X |
Excavation and
Lateral Support Works & Construction of Tunnel Box Structure for HKBCF to
Airport Tunnel East (Cut & Cover Tunnel) |
Portion X |
Sub-structure,
Superstructure & Finishing works for Highway Operation and Maintenance
Area Building |
West Portal |
Superstructure
& Finishing Works for Scenic Hill Tunnel West Portal Ventilation building |
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 Summons and
Prosecutions¡¨
Appendix
N
Location of Works Areas