Contract No.
HY/2013/01
Hong Kong-Zhuhai-Macao Bridge
Hong Kong Boundary Crossing Facilities ¡V
Passenger Clearance Building
Quarterly EM&A Report No. 15
(Covering the Period from 1 March 2018 to 31 May 2018)
20 May 2019
Revision
4
Main Contractor Environmental
Team
Contents
Executive Summary
1.4 Construction
Works Undertaken During the Reporting Period
2.1 Summary of EM&A Requirements
3....... Environmental Monitoring
and Audit
3.1 Air Quality Monitoring Results
3.3 Water Quality Monitoring Results
3.4 Dolphins Monitoring Results
3.5 Implementation
of Environmental Measures
3.6 Advice
on the Solid and Liquid Waste Management Status
3.7 Environmental
Licenses and Permits
4....... Summary
of Exceedance, Complaint, Notification of Summons and Successful Prosecution
4.1 Summary
of Exceedance of the Environmental Quality Performance Limit
4.2 Summary
of Complaints, Notification of Summons and Successful Prosecution
5....... Comments, Recommendations
and Conclusion
Figures
Figure 2.1 Location of Air Quality Monitoring
Stations
Figure 2.2 Location of Noise Monitoring
Stations
Figure 2.3 Location of Water Quality Monitoring Stations
Figure 2.4
Impact Dolphins Monitoring Line Transect Layout Map
Appendices
Appendix A Location
of Works Areas
Appendix B Project
Organization for Environmental Works
Appendix C Construction
Programme
Appendix D Event
and Action Plan Monitoring Data
Appendix E Implementation
Schedule for Environmental Mitigation Measures (EMIS)
Appendix F Graphical
Plot (Air Quality, Noise and Water Quality)
Appendix G Site
Audit Findings and Corrective Actions
Appendix H Waste
Flow Table
Appendix I Environmental
Licenses and Permits
Appendix J Statistics
on Environmental Complaints, Notification of Summons and Successful
Prosecutions
Appendix K Investigation
Report
Appendix L Dolphin
Monitoring Results
Executive Summary
This Quarterly Environmental
Monitoring and Audit (EM&A) Report is prepared for Contract HY/2013/01 Hong
Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) ¡V
Passenger Clearance Building (hereafter referred to as ¡§the Contract¡¨) (includes the construction
works of Contract No. HY/2013/06 Hong Kong-Zhuhai-Macao Bridge Hong Kong
Boundary Crossing Facilities ¡V Automatic Vehicle Clearance Support System
within Contract No. HY/2013/01 works area) for the Highways Department of Hong
Kong Special Administrative Region (HKSAR). The Contract was awarded to
Leighton ¡V Chun Wo Joint Venture (construction works of Contract No. HY/2013/06
was awarded to ATAL Technologies Limited within Contract No. HY/2013/01 works
area) (hereafter referred to as ¡§the Contractor¡¨) and Atkins China Limited was
appointed as the Environmental Team (ET) by the Contractor
The Contract is part of
Hong Kong ¡V Zhuhai ¡V Macao Bridge HKBCF which is a ¡§Designated
Project¡¨, under Schedule 2 of the Environmental Impact Assessment Ordinance
(EIAO) (Cap 499) and Environmental Impact Assessment (EIA) Report (Register No.
AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K
for HKBCF was issued on 11 April 2016. These documents are available through the EIA
Ordinance Register. Site preparation works of the
Contract started on 26 September 2014 and the construction
works of the
Contract commenced on 6 October 2014. The
construction works of the Contract No. HY/2013/06 within Contract No.
HY/2013/01 works area commenced on 20 February 2018.
Atkins China 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
HKBCF (Version1.0) and will be providing
environmental team services to the Contract.
This is the fifteenth Quarterly EM&A Report for the Contract which summaries findings of the EM&A works during
the reporting period from 1 March 2018 to 31 May 2018. (includes the
construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01
works area)
Environmental
Monitoring and Audit Progress
The EM&A programme was
undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0). The air quality, noise, water quality and dolphin
monitoring works under Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao
Bridge HKBCF ¡V Reclamation Works were suspended from 1 September 2017. The ET
of Contract No. HY/2013/01 is required and continues the same implementation of environmental monitoring commencing on 1
September 2017. It should be noted that the air
quality monitoring station (AMS6) is covered by Contract No. HY/2011/03 Hong
Kong-Zhuhai Macao Bridge Hong Kong Link Road ¡V Section between Scenic Hill and
HKBCF.
A
summary of the monitoring activities during the reporting period are listed
below:
Monitoring
Items |
Date |
||
March 2018 |
April
2018 |
May 2018 |
|
1-hour TSP Monitoring |
1, 5, 7, 9, 12, 13, 16, 19,
22, 23, 28 and 29 |
3, 4, 6, 9, 12, 13, 18, 19,
23, 24, 27 and 30 |
3, 4, 7, 10, 11, 16, 17, 21,
23, 25, 28, and 31 |
24-hour TSP Monitoring |
2, 5, 8, 9, 12, 14, 16,
20, 22, 26, 28 and 29 |
3, 4, 9, 10, 12, 13, 18, 23,
25, 27 and 30 |
3, 4, 9, 11, 15, 16, 19, 21,
24, 25, 30 and 31 |
Noise Monitoring |
5, 9, 12, 14, 20, 22, 26
and 28 |
3, 4, 9, 12, 17 19, 26,
and 30 |
2, 11, 14, 16, 21, 24, 29
and 31 |
Water Quality Monitoring |
2, 5, 7, 9, 12, 14, 16,
19, 21, 23, 25, 28 and 30 |
2, 4, 6, 9, 11, 13, 16,
18, 20, 23, 25, 27 and 30 |
2, 4, 7, 9, 11, 13, 16,
18, 21, 23, 25, 28 and 30 |
Chinese White Dolphin
Monitoring |
6, 9, 14 and 26 |
11, 18, 24 and 26 |
3, 15, 24 and 29 |
Environmental Site
Inspection |
7, 14, 23, and 28 |
4, 11, 18, and 25 |
2, 9, 16, 23 and 30 |
Breaches of
Action and Limit Levels :
A summary of environmental
exceedances for the reporting period are listed below:
Environmental Monitoring |
Parameters |
Action Level (AL) |
Limit Level (LL) |
||||
Mar 2018 |
Apr 2018 |
May 2018 |
Mar 2018 |
Apr 2018 |
May 2018 |
||
Air Quality |
1-hr TSP |
- |
- |
- |
- |
- |
- |
24-hr TSP |
- |
- |
- |
- |
- |
- |
|
Noise |
Leq (30 min) |
- |
- |
- |
- |
- |
- |
Water Quality |
Suspended solids level (SS) |
4 |
5 |
- |
- |
- |
- |
Turbidity level |
- |
- |
2 |
- |
- |
- |
|
Dissolved oxygen level (DO) |
- |
- |
2 |
- |
- |
- |
|
Dolphin Monitoring |
Quarterly Analysis |
- |
1 |
Based on the investigation results, all exceedances
are found that not related to Contract No. HY/2013/01.
Implementation of Environmental
Measures
Site inspections were
carried out on a weekly basis to monitor the implementation of roper
environmental pollution control and mitigation measures for the Project.
Potential environmental impacts due to the construction activities were
monitored and reviewed.
Complaint Log
There
was no complaint received in relation to the environmental impact during the
reporting period.
Notifications
of Summons and Successful Prosecutions
There was no notification
of summon or prosecution received during this reporting period.
Reporting Change
There was no reporting
change during the reporting period.
Table
1.1 Contact
Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
For Contract
No. HY/2013/01 |
||||
Engineer or
Engineer¡¦s Representative |
Chief Resident
Engineer |
Malcolm Sage |
3958 7330 |
3468 2076 |
Environmental
Project Office / Independent Environmental Checker |
Environmental
Project Office Leader |
Y. H. Hui |
3465 2888 |
3465 2899 |
Independent
Environmental Checker |
Raymond Dai |
3465 2888 |
3465 2899 |
|
Contractor |
Project
Manager |
Owen Leung |
9232 5750 |
3621 0180 |
Environmental
Officer |
Stephen Tsang |
9686 0787 |
3621 0180 |
|
Environmental
Team |
Environmental
Team Leader |
Keith Chau |
2972 1721 |
2890 6343 |
24 hours complaint hotline |
--- |
--- |
3958 7300 |
--- |
For Contract No. HY/2013/06 within
Contract No. HY/2013/01 works area |
||||
Engineer or Engineer¡¦s Representative |
Chief Registered Architect |
Malcolm Sage |
3958 7330 |
3468 2076 |
Environmental
Project Office / Independent Environmental Checker (Ramboll Hong Kong
Limited) |
Environmental Project
Office Leader |
Y. H. Hui |
3465 2888 |
3465 2899 |
Independent
Environmental Checker |
Raymond Dai |
3465 2888 |
3465 2899 |
|
Contractor |
Site Agent |
Mr. Eric Yim |
2565 3355 |
3162 5217 |
Environmental
Officer |
Mr. W. Li |
2565 3137 |
3162 5217 |
|
Environmental
Team |
Environmental
Team Leader |
Keith Chau |
2972 1721 |
2890 6343 |
24 hours
complaint hotline |
--- |
--- |
6509 0375 |
--- |
For Contract No. HY/2013/01
¡P
Pipework and ductwork installation
¡P
Falsework stripping
¡P
Wet trade works
¡P
Dry trade works
¡P
Mechanical, Electrical and Plumbing (MEP) High Level Containment
¡P
Removal of temporary
works
¡P
Hanging scaffolding
removal
¡P
Southern toilet
¡P
MISC steelwork
¡P
Escalator installation
¡P
Glazed lift installation
¡P
Road and Kerbing
¡P
Testing and commissioning works
¡P
Water features and
planters
¡P
Kiosk/Booth
installation
¡P
Paving
¡P
Planting Tree
¡P
Glazing Works
¡P
TPIDC Inspections
¡P
Lift/Escalator EMSD Inspection
¡P
Fit-out lift cars
¡P
Cleaning
For Contract No. HY/2013/06
within Contractor No. HY/2013/01 works area
¡P
Conduit installation and
Cabling at ELV & Sever Room and Zone E PCB
¡P
Equipment setup and system
SAT at ELV & Server Room, Zone E PCB
Table 2.1 Summary
of Impact EM&A Requirements
Environmental
Monitoring |
ID |
Location Description |
Air Quality |
AMS2(1) |
Tung
Chung Development Pier |
AMS3B(1) |
Site
Boundary of Site Office Area at Work Area WA2 |
|
AMS6(1) |
Dragonair/CNAC
(Group) Building |
|
AMS7B(1)(2) |
3RS
Site Office |
|
Noise |
NMS2(3) |
Seaview
Crescent |
NMS3B(3)(4) |
Site Boundary
of Site Office
Area at Works Area WA2 |
Remarks:
(1)
The ET of
this Contract should conduct impact air quality monitoring at the Air
Monitoring Station listed in the table as part of EM&A programme
according to the latest notification from ENPO when the monitoring station(s)
is/are no longer covered by another ET of the HZMB project.
(2)
The original
monitoring location was at Hong Kong SkyCity Marriott
Hotel (AMS7). As the permission to carry out air quality monitoring at Hong
Kong SkyCity Marriott Hotel was not granted after 31
January 2015, the monitoring location was relocated to Chu Kong Air-Sea Union
Transportation Co. Ltd. (AMS7A) from 5 February 2015 to 30 December 2015. The alternative
monitoring location at Chu Kong Air-Sea Union Transportation Co. Ltd. was
approved by EPD on 5 February 2015. However, AMS7A was relocated back to its
original location (AMS7-Hong Kong SkyCity Marriott
Hotel) on 30 December 2015. The relocation of air quality monitoring location,
AMS7A, back to AMS7 was approved by EPD on 21 December 2015. As the permission
to carry out air quality monitoring at Hong Kong SkyCity
Marriott Hotel was not granted after the end of January 2018, as such, a
proposal for the monitoring location relocated to 3RS Site Office(AMS7B) was
justified by the ET Leader for Contract No. HY/2013/01 on 22 January 2018;
verified by the IEC on 24 January 2018; and submitted to EPD on 30 January
2018, and the AQM has been carrying out at AMS7B with EPD¡¦s consent since 6 February
2018.
(3)
The ET of
this Contract should conduct impact noise monitoring at the NMS listed in the
table as part of EM&A programme according to the
latest notification from ENPO when the monitoring station(s) is/are no longer
covered by another ET of the HZMB project.
(4)
The Action
and Limit Levels for schools will be applied for this alternative monitoring
location.
Table 2.2 Impact
Water Quality Monitoring Stations
Station |
Description |
East |
North |
IS5 |
Impact Station (Close to HKBCF
construction site) |
811579 |
817106 |
IS(Mf)6 |
Impact Station (Close to HKBCF
construction site) |
812101 |
817873 |
IS7 |
Impact Station (Close to HKBCF
construction site) |
812244 |
818777 |
IS8 |
Impact Station (Close to HKBCF
construction site) |
814251 |
818412 |
IS(Mf)9 |
Impact Station (Close to HKBCF
construction site) |
813273 |
818850 |
IS10 |
Impact Station (Close to HKBCF
construction site) |
812577 |
820670 |
IS10(N)* |
Impact Station (Close to HKBCF
construction site) |
812942 |
820881 |
IS(Mf)11 |
Impact Station (Close to HKBCF
construction site) |
813562 |
820716 |
IS(Mf)16 |
Impact Station (Close to HKBCF construction
site) |
814328 |
819497 |
IS17 |
Impact Station (Close to HKBCF
construction site) |
814539 |
820391 |
SR3(N) ^ |
Sensitive receivers (San Tau SSSI) |
810689 |
816591 |
SR4(N) |
Sensitive receivers (Tai Ho) |
814705 |
817859 |
SR5 |
Sensitive receivers (Artificial Reef in NE
Airport) |
811489 |
820455 |
SR5(N)* |
Sensitive receiver (Artificial Reef in NE
Airport) |
812569 |
821475 |
SR6 |
Sensitive receivers (Sha Chau and Lung Kwu Chau
Marine Park) |
805837 |
821818 |
SR7 |
Sensitive
receivers (Tai Mo Do) |
814293 |
821431 |
SR10A(N) ^ |
Sensitive receivers (Ma Wan FCZ) 1 |
823644 |
823484 |
SR10B(N2) ^ |
Sensitive receivers (Ma Wan FCZ) 2 |
823689 |
823159 |
CS(Mf)3 |
Control Station |
809989 |
821117 |
CS(Mf)3(N)* |
Control Station |
808814 |
822355 |
CS(Mf)5# |
Control Station |
817990 |
821129 |
CS4 |
Control Station |
810025 |
824004 |
CS6 |
Control Station |
817028 |
823992 |
CSA |
Control
Station |
818103 |
823064 |
Remarks:
* Alternative water quality monitoring stations at
CS(Mf)3(N), SR5(N) and IS10(N) were justified and
verified by the ET Leader for Contract No. HY/2010/02 and the IEC respectively
on 24 March 2017 and it was approved by EPD on 12 May 2017.
# Due to safety reason, the
water quality monitoring at station CS(Mf)5 for flood tide on 30 May 2018 was temporarily conducted at
coordinate: 817926E, 821199N.
Table 2.3 Impact
Dolphin Monitoring Line Transect Co-ordinates
Transect ID |
HK Grid System |
|
|
East |
North |
|
|
1* |
804671 |
815456 |
|
804671 |
831404 |
|
|
2 |
805476 |
820800 |
|
805476 |
826654 |
|
|
3 |
806464 |
821150 |
|
806464 |
822911 |
|
|
4 |
807518 |
821500 |
|
807518 |
829230 |
|
|
5 |
808504 |
821850 |
|
808504 |
828602 |
|
|
6 |
809490 |
822150 |
|
809490 |
825352 |
|
|
7 |
810499 |
822000 |
|
810499 |
824613 |
|
|
8* |
811508 |
821123 |
|
811508 |
824254 |
|
|
9* |
812516 |
821303 |
|
812516 |
824254 |
|
|
10* |
813525 |
820827 |
|
813525 |
824657 |
|
|
11# |
814556 |
818853 |
|
814556 |
820992 |
|
|
12 |
815542 |
818807 |
|
815542 |
824882 |
|
|
13 |
816506 |
819480 |
|
816506 |
824859 |
|
|
14 |
817537 |
820220 |
|
817537 |
824613 |
|
|
15 |
818568 |
820735 |
|
818568 |
824433 |
|
|
16 |
819532 |
821420 |
|
819532 |
824209 |
|
|
17 |
820451 |
822125 |
|
820451 |
823671 |
|
|
18 |
821504 |
822371 |
|
821504 |
823761 |
|
|
19 |
822513 |
823268 |
|
822513 |
824321 |
|
|
20 |
823477 |
823402 |
|
823477 |
824613 |
|
|
21 |
805476 |
827081 |
|
805476 |
830562 |
|
|
22 |
806464 |
824033 |
|
806464 |
829598 |
|
|
23 |
814559 |
821739 |
|
814559 |
824768 |
|
|
24 |
805476 |
815900 |
|
805476 |
819100 |
|
|
Remarks: (a)
* Due to the presence of deployed silt curtain systems at the site
boundaries of the Contract, some of the transect lines shown in Figure 5.1
could not be fully surveyed during the regular survey. Transect 10 is reduced
from 6.4km to approximately 3.6km in length due to the HKBCF construction
site. Therefore the total transect length for both
NEL and NWL combined is reduced to approximately 108km (b)
# Coordinates for transect lines 1, 8, 9 and 11 have been updated in
respect to the Proposal for Alteration of Transect Line for Dolphin
Monitoring approved by EPD on 19 August 2015. (c) The change of transect
lines 2, 3, 4, 5, 6 and 7 and new vessel-based transect line 24 for dolphin monitoring
have been proposed due to the marine work of a designated project-Expansion
of Hong Kong International Airport into a Three-Runway System (3RS Project).
It was justified and verified by the ET Leader for Contract No. HY/2010/02
and the IEC respectively on 24 March 2017 and it was approved by EPD on 12 May
2017. (d) Due to marine work ofthe Expansion of Hong Kong International Airport into a
Three-Runway System (3RS Project), original transect lines of dolphin
monitoring 2, 3, 4, 5, 6 and 7 are enclosed by works boundary of 3RS Project.
Alternative dolphin monitoring transects lines 2, 3,4, 5, 6, 7 and 24 are adopted
starting from 17 May 2017 to replace the original transect lines. |
Table 2.4 Action
and Limit Levels for 1-hour TSP
Monitoring Station |
Action Level, µg/m3 |
Limit Level, µg/m3 |
AMS2 ¡V Tung Chung Development Pier |
374 |
500 |
AMS3B - |
368 |
|
AMS6 ¡V Dragonair/CNAC (Group)
Building (HKIA) |
360 |
|
AMS7B ¡V 3RS Site Office |
370 |
Table 2.5 Action
and Limit Levels for 24-hour TSP
Monitoring
Station |
Action
Level, µg/m3 |
Limit
Level, µg/m3 |
AMS2
¡V Tung Chung Development Pier |
176 |
260 |
AMS3B
- |
167 |
|
AMS6
¡V Dragonair/CNAC (Group) Building (HKIA) |
173 |
|
AMS7B
¡V 3RS Site Office |
183 |
Table 2.6 Action
and Limit Level for Construction Noise
Parameter |
Action Level |
Limit Level |
07:00 ¡V 19:00 hours
on normal weekdays |
When one documented complaint is received |
75/70/65 dB(A)* |
Notes :
If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by
the
Noise Control Authority have to
be followed.
* Reduce to 70 dB(A) for schools and 65 dB(A) during school examination
period. The Action and limit Levels for schools will be applied for NMS3B.
Daytime noise Limit Level of 70 dB(A) applies to education institutions, while
65 dB(A) applies during the school examination period.
Table 2.7 Action and Limit
Levels for Water Quality
Parameters |
Action |
Limit |
DO in mg L-1 (Surface, Middle
& Bottom) |
Surface and
Middle |
|
SS in mg L-1 (depth-averaged) at all
monitoring stations and control stations |
23.5 and 120% of
upstream control station's SS at the same tide of the same day* |
34.4 and 130% of
upstream control station's SS at the same tide of the same day and 10mg/L for
WSD Seawater intakes* |
27.5 and 120% of
upstream control station's turbidity at the same tide of the same day* |
47.0 and 130% of upstream control station's
turbidity at the same tide of the same day* |
Table
2.8 Action and Limit Levels for Chinese White Dolphin Monitoring -
Approach to Define Action Level (AL) and Limit Level (LL)
|
North Lantau Social Cluster |
|
|
NEL |
NWL |
Action
Level |
(STG < 70% of baseline) & (ANI < 70% of baseline) |
(STG < 70% of baseline) & (ANI < 70% of baseline) |
Limit
Level |
[(STG < 40% of baseline) & (ANI < 40%
of baseline)] AND [ (STG < 40% of baseline) & (ANI < 40%
of baseline)] |
Table
2.9 Derived Value of Action Level (AL) and Limit Level (LL) for Chinese White
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)] |
Table 3.1 Summary
of number of exceedances for 1-hr and 24-hr TSP Monitoring
Monitoring Station |
March 2018 |
April 2018 |
May 2018 |
|||
Action Level |
Limit Level |
Action Level |
Limit Level |
Action Level |
Limit Level |
|
AMS2 |
- |
- |
- |
- |
- |
- |
AMS3B |
- |
- |
- |
- |
- |
- |
AMS7B |
- |
- |
- |
- |
- |
- |
Table 3.2 Summary
of 1-hour TSP Monitoring Results During the Reporting Period
Monitoring Station |
Average (£gg/m3) |
Range (£gg/m3) |
Action Level (£gg/m3) |
Limit Level (£gg/m3) |
|
March 2018 |
AMS2 |
46 |
13-139 |
374 |
500 |
AMS3B |
40 |
16-137 |
368 |
||
AMS7B |
36 |
21-54 |
370 |
||
April 2018 |
AMS2 |
71 |
28-116 |
374 |
500 |
AMS3B |
26 |
6-42 |
368 |
||
AMS7B |
63 |
10-226 |
370 |
||
May 2018 |
AMS2 |
51 |
24-141 |
374 |
500 |
AMS3B |
18 |
4-54 |
368 |
||
AMS7B |
34 |
8-88 |
370 |
Table 3.3 Summary
of 24-hour TSP Monitoring Results During the Reporting Period
Reporting
month |
Monitoring
Station |
Average
(£gg/m3) |
Range
(£gg/m3) |
Action
Level (£gg/m3) |
Limit
Level (£gg/m3) |
March
2018 |
AMS2 |
67 |
47-103 |
176 |
260 |
AMS3B |
66 |
41-107 |
167 |
||
AMS7B |
111 |
92-129 |
183 |
||
April
2018 |
AMS2 |
55 |
23-107 |
176 |
260 |
AMS3B |
50 |
26-89 |
167 |
||
AMS7B |
86 |
44-114 |
183 |
||
May
2018 |
AMS2 |
39 |
17-84 |
176 |
260 |
AMS3B |
37 |
22-64 |
167 |
||
AMS7B |
70 |
40-97 |
183 |
Table 3.4 Summary
of number of exceedances for Impact Noise Monitoring
Monitoring Station |
March 2018 |
April 2018 |
May 2018 |
|||
Action Level |
Limit Level |
Action Level |
Limit Level |
Action Level |
Limit Level |
|
NMS2 |
- |
- |
- |
- |
- |
- |
NMS3B(*) |
- |
- |
- |
- |
- |
- |
Remark: (*) The Limit Level
for schools will be applied for NMS3B. Daytime noise Limit Level of 70 dB(A)
applies to education institutions, while 65 dB(A) applies during the school
examination period.
Table 3.5 Summary
of Construction Noise Monitoring Results During the Reporting Peroid
Reporting month |
Monitoring
Station |
Average, dB(A) |
Range, dB(A) |
Limit
Level, dB(A) |
March
2018 |
NMS2 |
65 |
65
¡V 66 |
75 |
NMS3B(*) |
66 |
61
¡V 68 |
70/65 |
|
April
2018 |
NMS2 |
65 |
64
¡V 65 |
75 |
NMS3B(*) |
63 |
59
-67 |
70/65 |
|
May
2018 |
NMS2 |
65 |
63
¡V 66 |
75 |
NMS3B(*) |
63 |
62
- 66 |
70/65 |
Remark: (*) The Limit Level
for schools will be applied for NMS3B. Daytime noise Limit Level of 70 dB(A)
applies to education institutions, while 65 dB(A) applies during the school
examination period.
On 9 April 2018, the Hong Kong Diploma of Secondary Education (HKDSE)
Examination was conducted at Ho Yu College. The Limit Level of 65dB(A) was
applied.
Table 3.6 Summary
of Water Quality Exceedances
Station |
Exceedance Level |
DO (S&M) |
DO (Bottom) |
Turbidity |
SS |
||||
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
Ebb |
Flood |
||
IS5 |
Action Level |
|
|
2018-05-28 |
|
|
|
2018-04-02 |
|
Limit Level |
|
|
|
|
|
|
|
|
|
IS(Mf)6 |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
IS7 |
Action Level |
|
|
|
|
|
|
|
2018-03-21 |
Limit Level |
|
|
|
|
|
|
|
|
|
IS8 |
Action Level |
|
|
2018-05-25 |
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
IS(Mf)9 |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
IS10(N) |
Action Level |
|
|
|
|
|
|
|
2018-04-20 |
Limit Level |
|
|
|
|
|
|
|
|
|
IS(Mf)11 |
Action Level |
|
|
|
|
|
2018-05-13 |
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
IS(Mf)16 |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
IS17 |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
SR3(N) |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
SR4(N) |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
SR5(N) |
Action Level |
|
|
|
|
|
2018-05-13 |
|
2018-03-16; 2018-03-30 |
Limit Level |
|
|
|
|
|
|
|
|
|
SR6 |
Action Level |
|
|
|
|
|
|
|
2018-03-02; 2018-04-18 |
Limit Level |
|
|
|
|
|
|
|
|
|
SR7 |
Action Level |
|
|
|
|
|
|
|
2018-04-18; 2018-04-25 |
Limit Level |
|
|
|
|
|
|
|
|
|
SR10A(N) |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
SR10B(N2) |
Action Level |
|
|
|
|
|
|
|
|
Limit Level |
|
|
|
|
|
|
|
|
|
Total |
Action Level |
0 |
0 |
2 |
0 |
0 |
2 |
1 |
8 |
13 |
|||||||||
Limit Level |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
0 |
SPSE = ((S / E) x 100) / SA%
DPSE = ((D / E) x 100) / SA%
where S = total number of on-effort
sightings
D = total number of dolphins from
on-effort sightings
E = total number of units of
survey effort
SA% = percentage of sea area
Summary of
Survey Effort and Dolphin Sightings
Table 3.7 Dolphin
Encounter Rates (Sightings Per 100 km of Survey Effort) During Reporting Period
(March to May 2018)
Survey Area |
Dolphin Monitoring |
Encounter
rate (STG) |
Encounter
rate (ANI) |
Primary
Lines Only |
Primary
Lines Only |
||
Northeast
Lantau |
Set 1 (6
& |
0.0 |
0.0 |
Set 2 (14
& |
0.0 |
0.0 |
|
Set 3 (11
& |
0.0 |
0.0 |
|
Set 4 (24
& |
0.0 |
0.0 |
|
Set 5 (3 & 15 May
2018) |
0.0 |
0.0 |
|
Set 6 (24 & 29 May 2018) |
0.0 |
0.0 |
|
Northwest
Lantau |
Set 1 (6
& |
0.0 |
0.0 |
Set 2 (14
& |
1.7 |
6.7 |
|
Set 3 (11
& |
1.7 |
5.2 |
|
Set 4 (24
& |
3.4 |
8.6 |
|
Set 5 (3 & 15 May
2018) |
1.8 |
3.5 |
|
Set 6 (24 & 29 May 2018) |
3.3 |
4.9 |
Table 3.8 Comparison of Average Dolphin Encounter Rates From Impact Monitoring Period (March to May 2018)
and Baseline Monitoring Period (September to November 2011)
Survey Area |
Encounter rate (STG) |
Encounter rate (ANI) |
||
Reporting
Period |
Baseline Monitoring Period |
Reporting
Period |
Baseline Monitoring Period |
|
Northeast Lantau |
0.0 |
6.0
¡Ó 5.1 |
0.0 |
22.2
¡Ó 26.8 |
Northwest Lantau |
2.0 ¡Ó
1.3 |
9.9
¡Ó 5.9 |
4.8
¡Ó 2.9 |
44.7
¡Ó 29.9 |
Notes:
1) The encounter rates deduced from the baseline monitoring period have been
recalculated based only on the survey effort and on-effort sighting data made
along the primary transect lines under favourable conditions.
2) ¡Ó denotes the standard deviation of the average
encounter rates.
Table 3.9 Comparison of Average
Dolphin Encounter Rates in Northeast Lantau Survey Area from All Quarters of
Impact Monitoring Period and Baseline Monitoring Period (September to November
2011)
|
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) |
September-November 2011 (Baseline) |
6.0 ¡Ó 5.1 |
22.2 ¡Ó 26.8 |
March-May 2013 (HKLR03 Impact (*)) |
0.4
¡Ó 1.0 |
0.4
¡Ó 1.0 |
March-May 2014 (HKLR03 Impact (*)) |
0.0 |
0.0 |
March-May 2015 (HKLR03 Impact (*)) |
0.0 |
0.0 |
March-May 2016 (HKLR03 Impact (*)) |
0.0 |
0.0 |
March-May 2017 (HKLR03 Impact (*)) |
0.0 |
0.0 |
March-May 2018 (HKBCF Impact) |
0.0 |
0.0 |
Notes:
1) The encounter
rates deduced from the baseline monitoring period have been recalculated based
only on survey effort and on-effort sighting data made along the primary transect
lines under favourable conditions.
2) ¡Ó denotes the
standard deviation of the average encounter rates.
(*) As explained in Section 1.5 of
Appendix L, the previous monitoring data from Contract No. HY/2011/03 (i.e.
HKLR03) were adopted for comparison with the baseline and present HKBCF impact
monitoring period.
Table 3.10 Comparison of Average Dolphin Encounter Rates in
Northwest Lantau Survey Area from all winter quarters of Impact Monitoring
Period and Baseline Monitoring Period (September to November 2011)
Monitoring Period |
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) |
September-November 2011 (Baseline) |
9.9 ¡Ó 5.9 |
44.7 ¡Ó 29.9 |
March-May 2013 (HKLR03 Impact (*)) |
7.8 ¡Ó 4.0 |
24.2 ¡Ó 18.1 |
March-May 2014 (HKLR03 Impact (*)) |
6.5 ¡Ó 3.3 |
19.1 ¡Ó 7.2 |
March-May 2015 (HKLR03 Impact (*)) |
0.5 ¡Ó 0.7 |
2.4 ¡Ó 4.1 |
March-May 2016 (HKLR03 Impact (*)) |
1.0 ¡Ó 1.1 |
4.8 ¡Ó 6.9 |
March-May 2017 (HKLR03 Impact (*)) |
0.9 ¡Ó 1.0 |
5.3 ¡Ó 9.5 |
March-May 2018 (HKBCF Impact) |
2.0 ¡Ó 1.3 |
4.8 ¡Ó 2.9 |
Notes:
1) The encounter rates deduced from the baseline
monitoring period have been recalculated based only on survey effort and
on-effort sighting data made along the primary transect lines under favourable
conditions.
2) ¡Ó denotes the standard deviation of the average encounter rates.
(*) As explained in Section 1.5 of Appendix L, the previous monitoring data from Contract No. HY/2011/03 (i.e. HKLR03) were adopted for comparison with the baseline and present HKBCF impact monitoring period.
Table 3.11 Comparison of average dolphin group
sizes from impact monitoring period (March-May 2018) and baseline monitoring
period (September-November 2011)
Survey Area |
Average Dolphin Group Size |
|
Reporting Period |
Baseline Monitoring Period |
|
Overall |
2.5 ¡Ó 0.9 (n = 8) |
3.7 ¡Ó 3.1 (n = 66) |
Northeast
Lantau |
--- |
|
Northwest
Lantau |
2.5 ¡Ó 0.9 (n = 8) |
3.9 ¡Ó 3.4 (n = 49) |
Note:
1) ¡Ó denotes the standard deviation of the
average group size.