Verification by IEC

Certification by ET

Contract No. HY/2013/01

Hong Kong-Zhuhai-Macao Bridge

Hong Kong Boundary Crossing Facilities – Passenger Clearance Building

Quarterly EM&A Report No. 18

(Covering the Period from 1 December 2018 to 31 January 2019)

18 December 2019

Revision 2

Main Contractor Environmental Team

Contents

Executive Summary

1....... Introduction. 6

1.1 Basic Project Information. 6

1.2 Project Organisation. 6

1.3 Construction Programme. 7

1.4 Construction Works Undertaken During the Reporting Period. 7

2....... EM&A Requirement 8

2.1 Summary of EM&A Requirements. 8

2.2 Monitoring Requirements. 12

2.3 Action and Limit Levels. 12

2.4 Event Action Plans. 14

2.5 Mitigation Measures. 14

3....... Environmental Monitoring and Audit 15

3.1 Air Quality Monitoring Results. 15

3.2 Noise Monitoring Results. 15

3.3 Water Quality Monitoring Results. 15

3.4 Dolphins Monitoring Results. 16

3.5 Implementation of Environmental Measures. 18

3.6 Advice on the Solid and Liquid Waste Management Status. 18

3.7 Environmental Licenses and Permits. 18

4....... Summary of Exceedance, Complaint, Notification of Summons and Successful Prosecution. 19

4.1 Summary of Exceedance of the Environmental Quality Performance Limit 19

4.2 Summary of Complaints, Notification of Summons and Successful Prosecution. 19

5....... Comments, Recommendations and Conclusion. 19

5.1 Comments. 19

5.2 Recommendations. 19

5.3 Conclusions. 20

Figures

Figure 2.1 Location of Air Quality and Noise Monitoring Stations

Figure 2.2 Location of Water Quality Monitoring Stations

Figure 2.3 Impact Dolphins Monitoring Line Transect Layout Map

Appendices

Appendix A Landscape Checklist

Appendix B Location of Works Areas

Appendix C Project Organization for Environmental Works

Appendix D Event and Action Plan

Appendix E Implementation Schedule for Environmental Mitigation Measures (EMIS)

Appendix F Statistics on Environmental Complaints, Notification of Summons and Successful Prosecutions

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) – 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 – 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 – 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 – Zhuhai – 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 eighteenth Quarterly EM&A Report for the Contract which summaries findings of the EM&A works during the reporting period from 1 December 2018 to 31 January 2019. (includes the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area)

Landscape Checklist is shown in Appendix A.

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 HY/2013/01 “HZMB HKBCF – Passenger Clearance Building were suspended from 1 October 2018. The ET of Contract No. HY/2013/04 is required and continues the same implementation of environmental monitoring commencing on 1 October 2018. 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 – Section between Scenic Hill and HKBCF. If the impact air quality monitoring at AMS6 is no longer covered under Contract No. HY/2011/03, it is required to continue such monitoring at AMS6 as part of EM&A programme. However, this is subject to ENPO’s final decision on which ET should carry out the monitoring work at these stations.

The works site area in Hong Kong-Zhuhai-Macao Bridge was handed over to the relevant authorities since 24 October 2018 and the site had been changed to a closed area, no site inspection was conducted for the Contract HY/2013/01 during the reporting period.

Breaches of Action and Limit Levels :

Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A report prepared by Contract No. HY/2011/03.

There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at AMS7B by the Environmental Team of Contract No. HY/2013/04 during the reporting period.

There was no Action and Limit Level exceedance for noise recorded at NMS2 and NMS3C by the ET of Contract No. HY/2013/04 during the reporting period.

6 exceedances of water quality (consisting of five Action Level exceedances and 1 Limit Level exceedance of suspended solids) were recorded by the Environmental Team of Contract No. HY/2013/04 during the reporting period.

Implementation of Environmental Measures

The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the relevant authorities since 24 October 2018 and the site area was changed to closed area, no site inspection was conducted for the Contract No. HY/2013/01 during the reporting period.

The landscape works for Contract No. HY/2013/01 was commenced on 1 March 2018. As the works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the relevant authorities since 24 October 2018 and the site area was changed to closed area, no inspection for landscape works (construction phase) was conducted for Contract No. HY/2013/01 during the reporting period.

Complaint Log

There was no complaint received in relation to the environmental impact during 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.

1 Introduction

1.1 Basic Project Information

1.1.1 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 – 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 – Automatic Vehicle Clearance Support System within Contract No. HY/2013/01 works area) for the Highways Department of Hong Kong Special Administrative Region. The Contract was awarded to Leighton – 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.

1.1.2 The Contract is part of Hong Kong – Zhuhai – Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) which is a “Designated Project”, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499). An 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 work 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. The works areas of the Contract are shown in Appendix B.

1.1.3 This is the eighteenth Quarterly EM&A Report for the Contract which summarizes the audit findings of the EM&A programme during the reporting period from 1 December 2018 to 31 January 2019.

1.2 Project Organisation

1.2.1 The project organization structure and lines of communication with respect to the on-site environmental management structure is shown in Appendix C. The key personnel contact names and numbers are summarized in Table 1.1.

Table 1.1 Contact Information of Key Personnel

Party	Position	Name	Telephone	Fax
For Contract No. HY/2013/01
Engineer or Engineer’s Representative (AECOM Asia Co. Ltd.)	Chief Resident Engineer	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 (until 31 Dec 2018)	3465 2888	3465 2899
		Ray Yan (from 1 Jan 2019)	3465 2836 5181 8401	3465 2899
Contractor (Leighton – Chun Wo Joint Venture)	Project Manager	Owen Leung	9232 5750	3621 0180
	Environmental Officer	Stephen Tsang	9686 0787	3621 0180
Environmental Team (Atkins China Limited)	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 (AECOM Asia Co. Ltd.)	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 (until 31 Dec 2018)	3465 2888	3465 2899
		Ray Yan (from 1 Jan 2019)	3465 2836 5181 8401	3465 2899
Contractor (ATAL Technologies Limited)	Site Agent	Mr. Eric Yim	2565 3355	3162 5217
	Environmental Officer	Mr. W. Li	2565 3137	3162 5217
Environmental Team (Atkins China Limited)	Environmental Team Leader	Keith Chau	2972 1721	2890 6343
24 hours complaint hotline	---	---	6509 0375	---

1.3 Construction Programme

1.3.1 As all the sections under Contract No. HY/2013/01 and HY/2013/06 were handed over to the relevant authorities on 24 October 2018 and the site had been changed to closed area, no construction works undertaken during the reporting period.

1.4 Construction Works Undertaken During the Reporting Period

1.4.1 As all the sections under Contract No. HY/2013/01 and HY/2013/06 were handed over to the relevant authorities on 24 October 2018 and the site had been changed to closed area, no construction works undertaken during the reporting period.

2 EM&A Requirement

2.1 Summary of EM&A Requirements

2.1.1 The EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1). The air quality, noise, water quality and dolphin monitoring works under Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – 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 (AMS 6) is covered by Contract No. HY/2011/03 Hong Kong-Zhuhai Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF.

2.1.2 The permission to carry out impact air quality monitoring work at AMS7 (Hong Kong SkyCity Marriott Hotel) was not granted after 31 January 2015. The impact air quality monitoring location (AMS7) was relocated to a nearby air sensitive receiver, Chu Kong Air-Sea Union Transportation Co. Ltd. (AMS7A), from 5 February 2015 to 30 December 2015. The alternative 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. The baseline and action/limit level for air quality as derived from the baseline monitoring data recorded at Hong Kong SkyCity Marriott Hotel (AMS7) was adopted for the air quality monitoring location. 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.

2.1.3 The air quality monitoring station AMS2 and AMS7B and noise monitoring station NMS2 are covered by Contract No. HY/2013/04 since 1 October 2018. The ET of the Contract or another ET of the HZMB project is required to conduct air quality station (AMS7B) and noise monitoring stations (NMS2 and NMS3C) are no longer covered under Contract No. HY/2013/04.

2.1.4 A summary of air and noise monitoring locations are presented in Table 2.1. The location of air quality and noise monitoring stations are shown as in Figure 2.1.

Table 2.1 Summary of Impact EM&A Requirements

Environmental Monitoring	ID	Location Description
Air Quality	AMS6^(2)	Dragonair/CNAC (Group) Building
	AMS7B^(^1)(2)(3)	3RS Site Office
Noise	NMS2^(4)(7)	Seaview Crescent
	NMS3C^(^4)^(5)(6)	Ying Tung Estate Refuse Collection Point

Remarks:

(1) Air quality monitoring at AMS7B have been undertaking by the ET for Contract No. HY/2013/04 since 1 October 2018.

(2) 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.

(3) 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.

(4) The ET of this Contract should conduct impact noise monitoring at the Noise 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.

(5) Limit Level for schools will be applied for NMS3C. Day time noise Limit Level of 70 dB(A) applies to education institutions, while 65 dB(A) applies during the school examination period.

(6) Noise Monitoring at NMS3C has been undertaking by the ET for Contract No. HY/2013/04 since 20 August 2018.

(7) Noise Monitoring at NMS2 has been undertaking by the ET for Contract No. HY/2013/04 since 1 October 2018.

2.1.5 The water quality monitoring works for the Contract before 1 September 2017 are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works. The water quality works under Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works were suspended from 1 September 2017. Water quality monitoring works are covered by the ET of Contract No. HY/2013/01 from 1 September 2017 to 30 September 2018. The ET of Contract No. HY/2013/04 are required and continues the same implementation of water quality monitoring works commencing since 1 October 2018. A total of twenty-one stations (nine Impact Stations (IS), seven Sensitive Receiver Stations (SR) and five Control/Far Field Stations (CS)) are covered by the current EM&A programme.

2.1.6 The water quality monitoring stations at CS(Mf)3 (Coordinate: 809989E, 821117N), IS10 (Coordinate: 812577E, 820670N) and SR5 (811489E, 820455N) have been occupied by the marine work of a designated project - Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project). The alternative water quality monitoring station at CS(Mf)3(N) (Coordinate: 808814E, 822355N), IS10(N) (Coordinate: 812942E, 820881N) and SR5(N) (812569E, 8201475N) 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.

2.1.7 The impact water quality monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04 since 1 October 2018. If exceedance(s) at these survey transect(s) is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the monthly EM&A Report.

2.1.8 Table 2.2 and Figure 2.2 show the locations of water quality monitoring stations.

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.

^ Alternative water quality monitoring stations at SR3, SR10A and SR10B(N) were justified by the ET Leader on 8 November 2017 and verified by IEC on 13 November 2017; and submitted to EPD on 29 November 2017 and it was approved by EPD on 22 December 2017.

2.1.9 The dolphin monitoring works for the Contract before 1 September 2017 are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works. The dolphin monitoring works under Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works were suspended from 1 September 2017. The ET of Contract No. HY/2013/01 (September 2018) and the ET of Contract No. HY/2013/04 (since 1 October 2018) are required to conduct dolphin monitoring at the twenty-four transects. The monitoring requirements are detailed in the correspondent monthly EM&A Reports prepared by Contract No. HY/2013/04.

2.1.10 The dolphin monitoring should adopt line-transect vessel survey method. The survey follows pre-set and fixed transect lines in the two areas defined by AFCD as: Northeast Lantau survey area; and Northwest Lantau survey area. 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.

2.1.11 The co-ordinates for the transect lines showing the transect lines and are shown in Table 2.3 and Figure 2.3 shows the layout map.

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 of the 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 transect lines 2, 3,4, 5, 6, 7 and 24 are adopted starting from 17 May 2017 to replace the original transect lines.

2.2 Monitoring Requirements

2.2.1 The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology, monitoring schedule, meteorological information are detailed in the correspondent monthly EM&A report prepared by Contract No. HY/2013/04.

2.3 Action and Limit Levels

2.3.1 The Action and Limit Level for 1-hr TSP and 24-hr TSP are provided in Table 2.4 and Table 2.5, respectively.

Table 2.4 Action and Limit Levels for 1-hour TSP

Monitoring Station	Action Level, µg/m^3	Limit Level, µg/m^3
AMS6 – Dragonair/CNAC (Group) Building (HKIA)	360	500
AMS7B – 3RS Site Office	370

Table 2.5 Action and Limit Levels for 24-hour TSP

Monitoring Station	Action Level, µg/m^3	Limit Level, µg/m^3
AMS6 – Dragonair/CNAC (Group) Building (HKIA)	173	260
AMS7B – 3RS Site Office	183

2.3.2 The Action and Limit Levels for construction noise are defined in Table 2.6.

Table 2.6 Action and Limit Level for Construction Noise

Monitoring Station	Time Period	Action Level	Limit Level
NMS2	0700-1900 hours on normal weekdays	When one documented complaint is received.	75 dB(A)
NMS3C^(i)			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.

(i) Noise monitoring at NMS3C has been undertaking by the ET for Contract No. HY/2013/04 since 20 August 2018.

* Reduce to 70 dB(A) for schools and 65 dB(A) during school examination period. The Limit Level for schools will be applied for NMS3C. Daytime noise Limit Level of 70 dB(A) applies to education institutions, while 65 dB(A) applies during the school examination period.

2.3.3 The Action and Limit Levels for water quality are provided in Table 2.7.

Table 2.7 Action and Limit Levels for Water Quality

Parameters	Action	Limit
DO in mg L^-1 (Surface, Middle & Bottom)	Surface and Middle 5.0 Bottom 4.7	Surface and Middle 4 .2 (except 5 mg/L for FCZ) Bottom 3.6
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*
Turbidity in NTU (depth-averaged)	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*

* Remarks: Reference is made to EPD approval of adjustment of water quality assessment criteria issued and became
effective on 18 February 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 limits occurs when monitoring result is lower than the limits.

3.For turbidity, SS, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.

4.All the figures given in the table are used for reference only and the EPD may amend the figures whenever it is considered as necessary.

5.The 1%-ile of baseline data for dissolved oxygen (surface and middle) and dissolved oxygen (bottom) are 4.2 mg/L and 3.6 mg/L respectively.

2.3.4 The Action and Limit Levels for Chinese White Dolphin Monitoring are provided in Table 2.8 and Table 2.9, respectively.

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)]

2.4 Event Action Plans

2.4.1 The Event Actions Plans for air quality, noise, water quality and dolphin monitoring are provided in Appendix D.

2.5 Mitigation Measures

2.5.1 The works site area of Contract No. HY/2013/01 was handed over to the relevant authorities since 24 October 2018, therefore, no environmental mitigation measure is recorded. Appendix E lists the recommended mitigation measures and the implementation status.

3 Environmental Monitoring and Audit

3.1 Air Quality Monitoring Results

3.1.1 In accordance with the Contract Specific EM&A Manual, impact 1-hour Total Suspended Particulates (TSP) monitoring was conducted for at least three times every 6 days, while impact 24-hour TSP monitoring was carried out for at least once every 6 days.

3.1.2 Confirmed by ENPO, the air quality monitoring (both 1-hr and 24-hr TSP) have been undertaking by the ET for Contract No. HY/2013/04 at AMS3C respectively since 20 August 2018. The responsible contract for the air quality monitoring at station AMS7B under the EM&A programme for the HZMB HKBCF Project has been changed from Contract No. HY/2013/01 to Contract No. HY/2013/04 since 1 October 2018.

3.1.3 Under the influence of the northeast monsoon, the weather of Hong Kong was generally fine in the first two days of December 2018. Affected by a relatively warm and humid maritime airstream, local weather became exceptionally warm in the next two days. The northeast monsoon behind the cold front brought cooler weather together with a few rain patches in mid of December 2018. Under the influence of the intense winter monsoon, local weather became windy with temperatures falling progressively towards the end of the month. The weather was cloudy and cool with a few rain patches of first few days of January 2019. With the monsoon moderating, there were sunny intervals with local temperatures rising gradually in the next two days of January 2019. Affected by the northeast monsoon over the south China coastal areas, it was cooler with some rain patches during mid of January 2019. Under the influence of the dry northeast monsoon and its subsequent replenishment, the weather of Hong Kong turned generally fine and dry with cool in end of January 2019.

3.1.4 The monitoring results for AMS6 and AMS7B are reported in the monthly EM&A Reports prepared for Contract Nos. HY/2011/03 and HY/2013/04, respectively.

3.1.5 Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS6 shall be referred to the monthly EM&A Reports (for December 2018 to January 2019) prepared by Contract No. HY/2011/03. There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at AMS7B recorded by the ET of Contract No. HY/2013/04 during the reporting period.

3.2 Noise Monitoring Results

3.2.1 In accordance with the Contract Specific EM&A Manual, impact noise monitoring was conducted for at least once per week during the construction phase of the Contract.

3.2.2 The monitoring results for NMS2 and NMS3C are reported in the monthly EM&A Reports prepared for Contract No. HY/2013/04. No noise exceedances were recorded at stations NMS2 and NMS3C by the ET of Contract No. HY/2013/04 during the reporting period.The event and action plan is provided in Appendix D.

3.3 Water Quality Monitoring Results

3.3.1 Impact water quality monitoring was carried out to ensure that any deterioration of water quality was detected, and that timely action was taken to rectify the situation. For impact water quality monitoring, measurement were taken in accordance with the Contract Specific EM&A Manual.

3.3.2 The monitoring results for the monitoring stations are reported in the monthly EM&A Reports prepared for Contract No. HY/2013/04.

3.3.3 No Action Level and Limit Level exceedances of dissolved oxygen were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the reporting period.

3.3.4 No Action Level and Limit Level exceedances of turbidity were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the reporting period.

3.3.5 Four Action Level exceedances of suspended solid were recorded at mid-flood tide on 7 and 12 December 2018 by the ET of Contract No. HY/2013/04 and one Action Level exceedance of suspended solid was recorded at mid-ebb tide on 10 December 2018 by the ET of Contract No. HY/2013/04 during the reporting period. One Limit Level exceedance of suspended solid was recorded at mid-flood tide on 12 December 2018 by the ET of Contract No. HY/2013/04 during the reporting period.

3.3.6 For investigations and the findings with respect to December 2018 to January 2019 can be referred to the corresponding monthly EM&A Report prepared for Contract No. HY/2013/04.

3.4 Dolphins Monitoring Results

Data Analysis

3.4.1 Distribution Analysis – The line-transect survey data was integrated with the Geographic Information System (GIS) in order to visualize and interpret different spatial and temporal patterns of dolphin distribution using sighting positions. Location data of dolphin groups were plotted on map layers of Hong Kong using a desktop GIS (ArcView^© 3.1) to examine their distribution patterns in details. The dataset was also stratified into different subsets to examine distribution patterns of dolphin groups with different categories of group sizes, young calves and activities.

3.4.2 Encounter rate analysis – Encounter rates of Chinese white dolphins (number of on-effort sightings per 100 km of survey effort, and total number of dolphins sighted on-effort per 100 km of survey effort) were calculated in NEL and NWL survey areas in relation to the amount of survey effort conducted during each month of monitoring survey. Dolphin encounter rates were calculated in two ways for comparisons with the HZMB baseline monitoring results as well as to AFCD long-term marine mammal monitoring results.

3.4.3 Notably, throughout the present quarterly progress report, the previous monitoring data obtained under Contract No. HY/2011/03 (i.e. HKLR03) are referenced and compared to the present quarterly monitoring data collected for the HKBCF-PCB project, as both HKBCF-PCB and HKLR03 project data was collected by the same HKCRP survey team, to ensure 100% consistency in monitoring methodology including vessel survey method as well as various analyses. On the contrary, the previous monitoring data collected under HZMB HKBCF-Reclamation Works contract (Contract No. HY/2010/02) was from a different survey team that have adopted different survey methodology (e.g. two observers and one data recorder under HKBCF-Reclamation Works contract, as compared to one primary observer and one data recorder under HKLR03 and HKBCF-PCB contract). Therefore, the previous HKLR03 monitoring data was adopted for comparison with the present quarterly findings. This approach was also adopted in previous four verified quarterly reports (i.e. EM&A quarterly reports no. 13^th, 14^th, 15^th and 16^th).

3.4.4 Firstly, for the comparison with the HZMB baseline monitoring results, the encounter rates were calculated using primary survey effort alone, and only data collected under Beaufort 3 or below condition would be used for encounter rate analysis. The average encounter rate of sightings (STG) and average encounter rate of dolphins (ANI) were deduced based on the encounter rates from six events during the present quarter (i.e. six sets of line-transect surveys in North Lantau), which was also compared with the one deduced from the six events during the baseline period (i.e. six sets of line-transect surveys in North Lantau).

3.4.5 Secondly, the encounter rates were calculated using both primary and secondary survey effort collected under Beaufort 3 or below condition as in AFCD long-term monitoring study. The encounter rate of sightings and dolphins were deduced by dividing the total number of on-effort sightings (STG) and total number of dolphins (ANI) by the amount of survey effort for the present quarterly period.

3.4.6 Quantitative grid analysis on habitat use – To conduct quantitative grid analysis of habitat use, positions of on-effort sightings of Chinese White Dolphins collected during the quarterly impact phase monitoring period were plotted onto 1-km² grids among NWL and NEL survey areas on GIS. Sighting densities (number of on-effort sightings per km²) and dolphin densities (total number of dolphins from on-effort sightings per km²) were then calculated for each 1 km by 1 km grid with the aid of GIS. Sighting density grids and dolphin density grids were then further normalized with the amount of survey effort conducted within each grid. The total amount of survey effort spent on each grid was calculated by examining the survey coverage on each line-transect survey to determine how many times the grid was surveyed during the study period. For example, when the survey boat traversed through a specific grid 50 times, 50 units of survey effort were counted for that grid. With the amount of survey effort calculated for each grid, the sighting density and dolphin density of each grid were then normalized (i.e. divided by the unit of survey effort).

3.4.7 The newly-derived unit for sighting density was termed SPSE, representing the number of on-effort sightings per 100 units of survey effort. In addition, the derived unit for actual dolphin density was termed DPSE, representing the number of dolphins per 100 units of survey effort. Among the 1-km² grids that were partially covered by land, the percentage of sea area was calculated using GIS tools, and their SPSE and DPSE values were adjusted accordingly. The following formulae were used to estimate SPSE and DPSE in each 1-km2 grid within the study area:

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

3.4.8 Behavioural analysis – When dolphins were sighted during vessel surveys, their behaviour was observed. Different activities were categorized (i.e. feeding, milling/resting, traveling, socializing) and recorded on sighting datasheets. This data was then input into a separate database with sighting information, which can be used to determine the distribution of behavioural data with a desktop GIS. Distribution of sightings of dolphins engaged in different activities and behaviours would then be plotted on GIS and carefully examined to identify important areas for different activities of the dolphins.

3.4.9 Ranging pattern analysis – Location data of individual dolphins that occurred during the 3-month impact phase monitoring period were obtained from the dolphin sighting database and photo-identification catalogue. To deduce home ranges for individual dolphins using the fixed kernel methods, the program Animal Movement Analyst Extension, was loaded as an extension with ArcView© 3.1 along with another extension Spatial Analyst 2.0. Using the fixed kernel method, the program calculated kernel density estimates based on all sighting positions, and provided an active interface to display kernel density plots. The kernel estimator then calculated and displayed the overall ranging area at 95% UD level.

Summary of Survey Effort and Dolphin Sightings

3.4.10 Impact dolphin monitoring results at all transects in reporting period are reported in the EM&A Reports prepared for Contract No. HY/2013/04.

Action Level / Limit Level Exceedance

3.4.11 The details of the dolphin monitoring exceedances can be referred to in the Quarterly EM&A reports under Contract No. HY/2013/04.

3.5 Implementation of Environmental Measures

3.5.1 The works site area of Contract No. HY/2013/01 was handed over to the relevant authorities since 24 October 2018, therefore, no environmental mitigation measure is recorded. A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix E.

3.6 Advice on the Solid and Liquid Waste Management Status

3.6.1 The works site area of Contract No. HY/2013/01 was handed over to the relevant authorities since 24 October 2018 and no chemical waste and general refuse were generated during reporting period.

3.7 Environmental Licenses and Permits

3.7.1 The work site area of Contract No. HY/2013/01 was handed over to the relevant authorities since 24 October 2018, therefore, no environmental licenses and permits is required in reporting period.

4 Summary of Exceedance, Complaint, Notification of Summons and Successful Prosecution

4.1 Summary of Exceedance of the Environmental Quality Performance Limit

4.1.1 For air quality monitoring, summary of Action and Limit Level exceedance of 1-hour TSP level and 24-hour TSP level at AMS6 are referred to the monthly EM&A report prepared by Contract No. HY/2011/03. No Action and Limit level exceedance of 1-hr TSP level and 24-hr TSP level recorded AMS7B by the Environmental Team of Contract No. HY/2013/04 during the reporting period.

4.1.2 There were no Action and Limit Level exceedance for noise recorded at NMS2 and NMS3C by the ET of Contract No. HY/2013/04 during the reporting period.

4.1.3 For water quality monitoring, no Action Level and Limit Level exceedance of dissolved oxygen were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the reporting period.

4.1.4 No Action Level and Limit Level exceedance of turbidity was recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the reporting period.

4.1.5 Four Action Level exceedances of suspended solid were recorded at mid-flood tide on 7 and 12 December 2018 by the ET of Contract No. HY/2013/04 and one Action Level exceedance of suspended solid was recorded at mid-ebb tide on 10 December 2018 by the ET of Contract No. HY/2013/04 during the reporting period. One Limit Level exceedance of suspended solid was recorded at mid-flood tide on 12 December 2018 by the ET of Contract No. HY/2013/04 during the reporting period.

4.1.6 Impact dolphin monitoring results at all transects are reported in the EM&A Reports prepared for Contract No. HY/2013/04 during the reporting period.

4.2 Summary of Complaints, Notification of Summons and Successful Prosecution

4.2.1 There was no complaint received in relation to the environmental impact during the reporting period. The details of cumulative statistics of Environmental Complaints are provide in Appendix F.

4.2.2 No notification of summons and prosecution was received during the reporting period.

4.2.3 Statistics on notifications of summons and successful prosecutions are summarized in Appendix F.

5 Comments, Recommendations and Conclusion

5.1 Comments

5.1.1 The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the relevant authorities since 24 October 2018 and the site area was changed to closed area, no site inspection was conducted for the Contract No. HY/2013/01 in reporting period.

5.1.2 A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix E.

5.2 Recommendations

5.2.1 The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the relevant authorities since 24 October 2018 and the site area was changed to closed area. No particular recommendation was advised for the improvement of the programme.

5.3 Conclusions

5.3.1 The site preparation work 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 Contractor No. HY/2013/01 works area commenced on 20 February 2018. This is the eighteenth Quarterly EM&A Report summaries findings of the EM&A works during the reporting period from 1 December 2018 to 31 January 2019 (included the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area). The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the owner since 24 October 2018.

5.3.2 For air quality monitoring, summary of Action and Limit Level exceedance of 1-hour TSP level and 24-hour TSP level at AMS6 are referred to the monthly EM&A report prepared by Contract No. HY/2011/03. No Action and Limit level exceedance of 1-hr TSP level and 24-hr TSP level recorded AMS7B by the Environmental Team of Contract No. HY/2013/04 during the reporting period. Summary of Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level at AMS7B shall be referred to the monthly EM&A report prepared by Contract No. HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) since 1 October 2018.

5.3.3 For construction noise, no Action and Limit Level exceedance for noise recorded NMS2 and NMS3C by the ET of Contract No. HY/2013/04 during the reporting period. Summary of Action and Limit Level exceedance at NMS2 and NMS3C shall be referred to the monthly EM&A report prepared by Contract No. HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) since 1 October 2018.

5.3.4 For water quality monitoring, no Action Level and Limit Level exceedance of dissolved oxygen were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the reporting period. No Action Level and Limit Level exceedances of turbidity was recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the reporting period. Four Action Level exceedances of suspended solid were recorded at mid-flood tide on 7 and 12 December 2018 by the ET of Contract No. HY/2013/04 and one Action Level exceedance of suspended solid was recorded at mid-ebb tide on 10 December 2018 by the ET of Contract No. HY/2013/04 during the reporting period. One Limit Level exceedance of suspended solid was recorded at mid-flood tide on 12 December 2018 by the ET of Contract No. HY/2013/04 during the reporting period. Summary of Action and Limit Level exceedance for water quality monitoring shall be referred to the monthly EM&A report prepared by Contract No. HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) since 1 October 2018.

5.3.5 Impact dolphin monitoring results at all transects are reported in the EM&A Reports prepared for Contract No. HY/2013/04 during reporting period.

5.3.6 The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the relevant authorities since 24 October 2018 and the site area was changed to closed area, no site inspection was conducted for the Contract No. HY/2013/01 during reporting period. Landscape Checklist is shown in Appendix A.

5.3.7 There was no complaint received in relation to the environmental impact during the reporting period.

5.3.8 No notification of summons and successful prosecution was received during the reporting period.