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.61 (October 2017)
14 November 2017
Revision
2
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-first 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 October 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 during this reporting month is listed below:
|
1-hr TSP Monitoring |
3,
9, 13, 19, 25 and 31 October 2017 |
|
24-hr TSP Monitoring |
6,
12, 18, 24 and 30 October 2017 |
|
Noise Monitoring |
3,
9, 19, 25 and 31 October 2017 |
|
Water Quality Monitoring |
2,
4, 6, 9, 11, 13, 16, 18, 20, 23, 25, 27 and 30 October 2017 |
|
Chinese White Dolphin
Monitoring |
4,
9, 18 and 26 October 2017 |
|
Site Inspection |
4,
11, 18, 25 and 31 October 2017 |
Due to boat
unavailability, the dolphin monitoring was rescheduled from 11 October 2017 to
9 October 2017.
Due to
unfavourable weather condition, the dolphin monitoring was rescheduled from 16
October 2017 to 18 October 2017.
There was a
problem of vessel and the vessel needed to be maintained on 20 October 2017.
The dolphin monitoring was rescheduled from 20 October 2017 to 26 October 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) |
3 |
0 |
|
Turbidity level |
0 |
0 |
|
|
Dissolved oxygen level (DO) |
0 |
0 |
There was an Action Level
exceedance of suspended solid level recorded at station IS(Mf)6 during mid-ebb tide
on 16 October 2017. There was an Action Level
exceedance of suspended solid level recorded at station SR5(N) during mid-flood
tide on 20 October 2017. There was an Action Level exceedance of suspended
solid level recorded at station IS8 during mid-ebb tide on 30 October 2017.
Complaint Log
There was no complaint received
in relation to the environmental impacts during this reporting month.
A summary of environmental
complaint for September 2017 is as follows:
|
Environmental
Complaint No. |
Date of Complaint Received |
Description
of Environmental Complaint |
|
COM-2017-122 |
1823 Integrated Call Centre received a complaint lodged by a member of the public on 30 September 2017. ET received complaint details on 3 October 2017 |
Cleanliness
problem at Tung Fai Road |
Remark:
1. Based on updated information received in this reporting month, the
environmental complaint no. COM-2017-102 mentioned in Monthly EM&A Report
for September 2017 should be COM-2017-122.
For Environmental Complaint No. COM-2017-122 in September 2017,
complaint investigation was undertaken. Based on the investigation result, there
is no direct evidence showing that the complaint is related to Contract No.
HY/2011/03. Nevertheless, in order to enhance dust suppression measures, the
Contractor will increase the frequency of road cleaning by water bowser from
three times per day to four times per, subject to regular review with relevant
stakeholders in the vicinity.
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 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 is in progress.
The role and responsibilities as the ET Leader of the Contract has been temporarily
taken up by Mr Willie Wong instead of Ms Claudine Lee since 25 September 2017.
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
Superstructure &
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:
The role and responsibilities as
the ET Leader of the Contract has been temporarily taken up by Mr Willie Wong
instead of Ms Claudine Lee since 25 September 2017. |
||||
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 |
|
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 |
|
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 |
|
Superstructure
and 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 |
36 |
12 ¡V 61 |
352 |
500 |
|
AMS6 |
41 |
25 ¡V 69 |
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 |
74 |
48 ¡V 100 |
164 |
260 |
|
AMS6 |
110 |
73 ¡V 163 |
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 |
59 |
58 ¡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 |
|
SR4 |
Sensitive Receivers (Tai
Ho Inlet) |
814760 |
817867 |
|
SR5(N) |
Sensitive Receivers (Artificial
Reef in NE Airport) |
812569 |
821475 |
|
SR10A |
Sensitive Receivers (Ma
Wan Fish Culture Zone) |
823741 |
823495 |
|
SR10B |
Sensitive Receivers (Ma
Wan Fish Culture Zone) |
823686 |
823213 |
|
CS2(A) |
Control Station (Mid-Ebb) |
805232 |
818606 |
|
CS(Mf)5 |
Control Station
(Mid-Flood) |
817990 |
821129 |
|
Remarks: 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 beenconducted 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 is in progress. 2) 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. |
|||
(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 |
-- |
-- |
-- |
-- |
-- |
-- |
16 Oct 2017 |
-- |
1 |
0 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
IS7 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
IS8 |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
30 Oct 2017 |
-- |
1 |
0 |
|
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(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
SR4(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
SR5(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
20 Oct 2017 |
0 |
1 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
SR10A(N) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
SR10B(N2) |
Action Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
Limit Level |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
0 |
0 |
|
|
Total |
Action |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
1 |
3** |
|
|
Limit |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0** |
||
Notes:
S: Surface;
M: Mid-depth;
** The
total number of
exceedances
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: October 4th / 9th |
0.0 |
0.0 |
|
Set
2: October 18th / 26th |
0.0 |
0.0 |
|
|
NWL |
Set
1: October 4th / 9th |
1.9 |
9.3 |
|
Set
2: October 18th / 26th |
4.9 |
4.9 |
|
Remark:
1. Dolphin Encounter Rates Deduced from the Two
Sets of Surveys (Two Surveys in Each Set) in October 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 |
3.5 |
2.6 |
7.0 |
5.2 |
Remark:
1.
Monthly Average Dolphin Encounter Rates (Sightings Per 100 km of
Survey Effort) from All Four Surveys Conducted in October 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 |
|
29 Sep 2017 |
1. Silt curtain
with gap was observed at Portion X. 2. Drip tray was
not provided for oil drums at A1 Bridge. 3. Chemical container
was not stored in the designated storage area at A1 Bridge. 4. NRMM label was
not provided on the air compressor at A1 Bridge. 5. Stagnant water
was observed at A1 Bridge. 6.
Exit of N20 was found dry and unpaved. Muddy tracks was observed on the road
outside the works area. |
1. The gaps of silt
curtain were closed at Portion X. 2. The oil drums
were removed from A1 Bridge. 3. The chemical
container was removed from the waste skip and stored in the designated
storage area at A1 Bridge. 4. The air compressor
was labelled with its output power and a notice of exemption of NRMM label at
A1 Bridge. 5. The stagnant
water was removed from A1 Bridge. 6. Wheel washing was provided at the
exit of N20. No muddy tracks were observed on the road
outside the works area. |
4 Oct 2017 |
|
4 Oct 2017 |
1. Gaps of silt
curtain were observed at Portion X. 2. Waste was
observed at Depress Roundabout. 3. A waste skip
was overloaded with waste at S15. 4. Waste was
observed at HMA. 5. Oil
drums were observed without drip tray at S16. |
1. The gaps of
silt curtain were closed at Portion X. 2. The waste was
removed from Depress Roundabout. 3. The waste was
removed from the skip at S15. 4. The waste was
removed from HMA. 5. The oil drums were removed from
S16. |
11 Oct 2017 |
|
11 Oct 2017 |
1. An oil drum
was observed without drip tray at Depress Roundabout. 2. A concrete
pump was observed without NRMM label at Depress Roundabout. 3. Stagnant water
and poor housekeeping was observed at Depress Roundabout. 4. Stagnant water
was observed at HMA. 5. Waste was
observed at Plant Room. 6. Waste was
observed at Depress Roundabout. |
1. The oil drum
was removed from Depress Roundabout. 2. A NRMM label
was adhered on to the concrete pump at Depress Roundabout. 3. The stagnant
water was removed and good housekeeping was maintained at Depress Roundabout. 4. The stagnant
water was removed from HMA. 5. The waste was
removed from Plant Room. 6. The waste was removed
from Depress Roundabout. |
18 Oct 2017 |
|
18 Oct 2017 |
1. Gaps of silt curtain was observed at Portion
X. 2. Stagnant water and poor housekeeping were
observed at Depress Roundabout. 3. No drip tray was provided for a chemical drum
at N20. 4. Waste was observed, and no drip tray was
provided for chemical containers at HAT. 5. Waste was observed at HAT. 6. Stagnant water was observed at A2 Bridge. |
1. The gaps of silt curtain were
closed at Portion X. 2. The stagnant water was removed
and good housekeeping was maintained at Depress Roundabout. 3. The chemical drum was removed
from N20. 4. The waste and the chemical
containers were removed from HAT. 5. The waste was removed from
HAT. 6. The stagnant water was
removed, and the gully was drained and covered up at A2 Bridge. |
25 Oct 2017 |
|
25 Oct 2017 |
1. Gaps of silt
curtain were observed at Portion X. 2. General refuse
was observed at Depress Roundabout. 3. Construction
waste was observed at Plant Room. 4. Construction
waste was observed at S7. 5. Unused blue hose
was observed at S11. 6.
Unpaved road was dry at S25. |
1. The gaps of silt curtain were closed at Portion X. 2. The general refuse was removed from Depress Roundabout. 3. The construction waste was removed from Plant Room. 4. The construction waste was removed from S7. 5. The unused blue hose was removed from S11. 6. The unpaved road was paved at S25. |
31 Oct 2017 |
|
31 Oct 2017 |
1.
Silt curtain with gap was observed at Portion X. 2.
Odour was noted in waste skip at S16. 3.
Waste was observed at S25. 4.
Drip tray was not provided for oil drum at S25. 5.
Drip tray was not provided for chemical container at S16. 6.
Construction waste was observed on S25. |
The Contractor was
recommended to: 1.
Maintain the silt curtain properly at Portion X. 2.
Remove the waste promptly and apply deodorant control in the waste skip at
S16. 3.
Remove the waste promptly from S25. 4.
Provide drip tray for the oil drum or remove it immediately from S25. 5.
Provide drip tray for the chemical container or remove it immediately from
S16. 6.
Remove the construction waste promptly from S25. |
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 6.2 A
Summary of Environmental Complaint for the Reporting Month
|
Environmental
Complaint No. |
Date of Complaint Received |
Description
of Environmental Complaint |
|
COM-2017-122 |
1823 Integrated Call Centre received a complaint lodged by a member of the public on 30 September 2017. ET received complaint details on 3 October 2017 |
Cleanliness
problem at Tung Fai Road |
Remark:
1. Based on updated
information received in this reporting month, the environmental complaint no.
COM-2017-102 mentioned in Monthly EM&A Report for September 2017 should be
COM-2017-122.
Table 7.1 Construction
Activities for November 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 |
|
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 |
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 |
Superstructure &
Finishing works for Highway Operation and Maintenance Area Building |
|
West Portal |
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 Environmental Quality
Limit Exceedances¡¨ and Record of ¡§Notification of Summons and Prosecutions¡¨
Appendix
N
Location of Works Areas