Verification by IEC

Certification by ET

Contract No. HY/2013/01

Hong Kong-Zhuhai-Macao Bridge

Hong Kong Boundary Crossing Facilities – Passenger Clearance Building

Monthly EM&A Report No. 51

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

24 October 2019

Revision 4

Main Contractor Environmental Team

Contents

Executive Summary

1...... Introduction. 3

1.1 Basic Project Information. 3

1.2 Project Organisation. 4

1.3 Construction Programme. 5

1.4 Construction Works Undertaken During the Reporting Period. 5

2...... Air Quality Monitoring. 6

2.1 Monitoring Requirements. 6

2.2 Monitoring Equipment 6

2.3 Monitoring Locations. 6

2.4 Monitoring Parameters, Frequency and Duration. 7

2.5 Monitoring Methodology. 7

2.6 Monitoring Schedule for the Reporting Month. 7

2.7 Monitoring Results. 7

3...... Noise Monitoring. 8

3.1 Monitoring Requirements. 8

3.2 Monitoring Equipment 8

3.3 Monitoring Locations. 8

3.4 Monitoring Parameters, Frequency and Duration. 9

3.5 Monitoring Methodology. 9

3.6 Monitoring Schedule for the Reporting Month. 9

3.7 Monitoring Results. 9

4...... Water Quality Monitoring. 10

4.1 Monitoring Requirements. 10

4.2 Monitoring Equipment 10

4.3 Monitoring Parameters, Frequency and Duration. 10

4.4 Monitoring Location. 11

4.5 Monitoring Methodology. 12

4.6 Monitoring Result 12

5...... Dolphins Monitoring. 13

5.1 Monitoring Requirement 13

5.2 Monitoring Methodology and Location. 13

5.3 Monitoring Schedule for the Reporting Month. 15

5.4 Monitoring Result 15

6...... Environmental Site Inspection and Audit 16

6.1 Site Inspection. 16

6.2 Advice on the Solid and Liquid Waste Management Status. 16

6.3 Environmental Licenses and Permits. 16

6.4 Implementation Status of Environmental Mitigation Measures. 16

6.5 Summary of Exceedance of the Environmental Quality Performance Limit 16

6.6 Summary of Complaints, Notification of Summons and Successful Prosecution. 17

7...... Future Key Issues. 18

7.1 Construction Programme for the Coming Months. 18

7.2 Environmental Site Inspection and Monitoring Schedule for the Coming Month. 18

8...... Conclusions. 19

8.1 Conclusions. 19

Figures

Figure 2.1 Location of Air Quality and Noise Monitoring Stations and Wind Station

Figure 4.1 Location of Water Monitoring Stations

Figure 5.1 Transect Line Layout in Northwest and Northeast Lantau Survey Areas

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 Monthly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HZMB 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 HZMB HKBCF Project 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 (Version 1.0) and will be providing environmental team services to the Contract.

This is the fifty-first monthly EM&A Report for the Contract which summarizes findings of the EM&A works during the reporting period from 1 to 31 December 2018. (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 monthly 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.

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 notifications of summons or prosecutions received during the reporting period.

Reporting Change

There was no reporting change during the reporting period.

Future Key Issues

No construction works will be conducted by Contract No. HY/2013/01 in the upcoming month.

1 Introduction

1.1 Basic Project Information

1.1.1 This Monthly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract No. 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 The proposed works under this Contract comprise the following:

For Contract No. HY/2013/01

· Construction of Passenger Clearance Building (PCB) including architectural and builders works, structural steel roof and reinforced concrete frames, basement, piled foundations, aluminium roof, curtain wall facades, building services and electrical and mechanical works;

· Installation of district cooling system including seawater cooling intake pumping station, seawater intake and discharge water pipelines work; Installation of Chilled water cooling pipelines system, heat exchanger and chilled pumping system;

· Construction of transport and associated facilities connecting to the PCB entailing the Emergency Vehicular Access, an at-grade mainland side drop-off area, an Hong Kong side elevated drop-off deck and 8 numbers of footbridge links;

· Construction of a public toilet, 6 numbers of C&ED observation booths, a generator set building and a refuse storage & material recovery chamber;

· Construction of a section of 70m common utilities enclosure and staff subway and civil provisions for associated electrical and mechanical works;

· Construction of drainage, sewerage, fresh water & flushing water supply and utilities & service works;

· Construction of civil provisions, including draw pits & ducting for Traffic Control and Surveillance System (TCSS) and Extra Low Voltage System (ELV);

· Construction of box culvert A;

· Construction of 2 numbers of vehicular bridge abutments at mainland side pickup area earthmound;

· Construction of geotechnical works including top up the existing earth mound from +11.5mPD to the finished level as stated in the Contract, reinforced earth slope and fill slopes and special backdrop manhole at mainland side pickup area earthmound;

· Landscape hardworks and softworks; and

· Other works which are shown on the Drawings or specified in the Specification or which may be ordered in accordance with the Contract.

For Contract No. HY/2013/06 within Contract No. HY/2013/01

· The Automatic Vehicle Clearance Support System amid to increasing traffic flow for Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities;

· Responsible for designs and develops a set of tailor-made computer monitoring and control systems to for daily security operation; and

· The Clearance Workstations at 72 vehicle clearance kiosks, Customs and Excise’s inbound and outbound traffic control centers as well as a Vehicle Tracking System.

1.1.4 This is the fifty-first monthly EM&A Report for the Contract No. HY/2013/01 which summarizes the audit findings of the EM&A programme during the reporting period from 1 to 31 December 2018 (included the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area).

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 Air Quality Monitoring

2.1 Monitoring Requirements

2.1.1 The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.1.2 The Action and Limit Level for the 1-hour and 24-hour TSP are provided in Table 2.1 and 2.2 respectively.

Table 2.1 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 2.2 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

2.1.3 If exceedance(s) at these station(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.

2.2 Monitoring Equipment

2.2.1 The monitoring equipment are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.3 Monitoring Locations

2.3.1 The air quality monitoring works for the Contract are covered by Contract No. HY/2013/04 Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) and Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF.

2.3.2 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 air quality monitoring location (AMS7) was relocated to a nearby air sensitive receiver, Chu Kong Air-Sea Union Transportation Co. Ltd, from 5 February 2015. The alternative location 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.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.

2.3.3 The ET of the Contract or another ET of the HZMB project is required to conduct air quality monitoring at AMS6 and AMS7B as part of EM&A programme if these air quality monitoring stations are no longer covered under Contract Nos. HY/2011/03 and HY/2013/04.

2.3.4 Table 2.3 describes the details of the monitoring stations and Figure 2.1 shows the locations of the air quality monitoring stations.

Table 2.3 Construction Dust Monitoring Locations

ID	Location Description
AMS6	Dragonair/CNAC (Group) Building
AMS7B^(^1)	3RS Site Office

Remarks:

(1) 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.

2.4 Monitoring Parameters, Frequency and Duration

2.4.1 The monitoring parameters, frequency and duration are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.5 Monitoring Methodology

2.5.1 The monitoring methodology are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.6 Monitoring Schedule for the Reporting Month

2.6.1 The schedule for air quality monitoring in December 2018 are referred to the monthly EM&A report prepared by Contracts Nos. HY/2011/03 and HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) respectively.

2.7 Monitoring Results

2.7.1 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.

2.7.2 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.

2.7.3 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.

2.7.4 The event and action plan is provided in Appendix D.

3 Noise Monitoring

3.1 Monitoring Requirements

3.1.1 The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.1.2 The Action and Limit Level for the noise monitoring is provided in Table 3.1.

Table 3.1 Action and Limit Levels for Noise during Construction Period

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)*

Remark:

* 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.

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

3.1.3 If exceedance(s) at these station(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.

3.2 Monitoring Equipment

3.2.1 The monitoring equipment are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.3 Monitoring Locations

3.3.1 Monitoring location NMS2 was set up at the proposed locations in accordance with Contract Specific EM&A Manual. However, for monitoring location NMS3 (Ho Yu College), as proposed in the Contract Specific EM&A Manual, approval for carrying out impact monitoring could not be obtained from the principal of school. Permission on setting up and carry out impact monitoring works at nearby sensitive receivers, like Caribbean Coast and Coastal Skyline, was also sought. However, approvals for carrying out impact monitoring works within their premises were not obtained. Impact noise monitoring was conducted at site boundary of the site office area in Work Area WA2 (NMS3B) respectively. The noise monitoring station at NMS3B has been relocated and renamed as NMS3C and is covered by Contract No. HY/2013/04. Same baseline noise level (as derived from the baseline monitoring data recorded at Ho Yu College) and Limit Level were adopted for this alternative noise monitoring location.

3.3.2 The noise monitoring works for the Contract are covered by Contract No. HY/2013/04 Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion). The ET of the Contract or another ET of the HZMB project is required to conduct impact noise monitoring at NMS2 and NMS3C as part of EM&A programme if these noise monitoring stations are no longer covered under Contract No. HY/2013/04.

3.3.3 Figure 2.1 shows the locations of noise monitoring stations. Table 3.2 describes the details of monitoring stations.

Table 3.2 Construction Noise Monitoring Locations

ID	Location Description
NMS2^(1)	Seaview Crescent
NMS3C^(^1) (2) (3)	Ying Tung Estate Refuse Collection Point

Remarks:

(1) 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.

(2) 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.

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

3.4 Monitoring Parameters, Frequency and Duration

3.4.1 The monitoring parameters, frequency and duration are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.5 Monitoring Methodology

3.5.1 The monitoring methodology are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.6 Monitoring Schedule for the Reporting Month

3.6.1 The schedule for construction noise monitoring in December 2018 are 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).

3.7 Monitoring Results

3.7.1 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.

4 Water Quality Monitoring

4.1 Monitoring Requirements

4.1.1 The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

4.1.2 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.

4.1.3 Table 4.1 shows the established Action and Limit Levels for the environmental monitoring works.

Table 4.1 Action and Limit Levels for Water Quality

Parameters	Action Level	Limit Level
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.

4.2 Monitoring Equipment

4.2.1 The monitoring equipment are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

4.3 Monitoring Parameters, Frequency and Duration

4.3.1 The monitoring parameters, frequency and duration are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

4.4 Monitoring Location

4.4.1 In accordance with the Contract Specific EM&A Manual, a total of twenty-one stations (nine Impact Stations, seven Sensitive Receiver Stations and five Control/Far Field Stations) were designated for impact water quality monitoring. The nine Impact Stations (IS) were chosen on the basis of their proximity to the reclamation and thus the greatest potential for water quality impacts, the seven Sensitive Receiver Stations (SR) were chosen as they are close to the key sensitive receives and the five Control/ Far Field Stations (CS) were chosen to facilitate comparison of the water quality of the IS stations with less influence by the Project/ ambient water quality conditions

4.4.2 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.

4.4.3 The water quality monitoring stations at SR3, SR10A and SR10B(N) were not available for water sampling due to safety reason, thus, monitoring stations were changed to SR3(N) (Coordinate: 810689E, 816591N); SR10A(N) (Coordinate: 823644E, 823484N) and SR10B(N2) (Coordinate:823689E, 823159N) were justified by the ET Leader on 8 November 2017 and the IEC verified on 13 November 2017; and submitted to EPD on 29 November 2017 and it was approved by EPD on 22 December 2017.

4.4.4 The ET of the Contract or another ET of the HZMB project is required to conduct water quality monitoring at these stations as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2013/04.

4.4.5 Table 4.2 and Figure 4.1 shows the locations of water quality monitoring stations.

Table 4.2 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(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(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(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.

4.5 Monitoring Methodology

4.5.1 The monitoring methodology are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

4.6 Monitoring Schedule for the Reporting Month

4.6.1 The schedule for water quality monitoring in December 2018 are 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).

4.7 Monitoring Result

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

4.7.2 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.

4.7.3 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.

4.7.4 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.

4.7.5 The event and action plan is provided in Appendix D.

5 Dolphins Monitoring

5.1 Monitoring Requirement

5.1.1 The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

5.1.2 The Action and Limit Level for dolphin monitoring are provided in Table 5.1 and 5.2 respectively.

Table 5.1 Action and Limit Levels for Chinese White Dolphin Monitoring - Approach to Define Action Level (AL) and Limit Level (LL)

	North Lantau Social Cluster
	Northeast Lantau (NEL)	Northwest Lantau (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)]

Remarks:

1.    STG means no. of on-effort dolphin sightings per 100 km of survey effort

2.     ANI means no. of dolphins from all on-effort sightings per 100 km of survey effort

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 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)]

5.1.3 The event and action plan is provided in Appendix D.

5.2 Monitoring Methodology and Location

5.2.1 The dolphin monitoring works for the Contract are covered by Contract No. HY/2013/04 Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion). The ET of the Contract or another ET of the HZMB project is required to conduct dolphin monitoring at the twenty-four transects as part of EM&A programme if these transects are no longer covered under Contract No. HY/2013/04. 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. Figure 5.1 shows the for the layout map transect lines.

5.2.2 The co-ordinates for the transect lines and a layout map showing the transect lines have been provided by AFCD and are shown in Table 5.3.

Table 5.3 Impact Dolphin Monitoring Transect Line Co-ordinates

Transect Line No.	HK Grid System
	Easting	Northing
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 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) 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. (d) 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.

5.3 Monitoring Schedule for the Reporting Month

5.3.1 The schedule for dolphin monitoring in December 2018 are 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).

5.4 Monitoring Result

5.4.1 Impact dolphin monitoring results at all transects in December 2018 are reported in the EM&A Reports prepared for Contract No. HY/2013/04.

6 Environmental Site Inspection and Audit

6.1 Site Inspection

6.1.1 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 during the reporting period.

6.1.2 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.

6.2 Advice on the Solid and Liquid Waste Management Status

6.2.1 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.

6.3 Environmental Licenses and Permits

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

6.4 Implementation Status of Environmental Mitigation Measures

6.4.1 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. The EMIS is shown in Appendix E.

6.5 Summary of Exceedance of the Environmental Quality Performance Limit

6.5.1 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.

6.5.2 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.

6.5.3 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.

6.5.4 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.

6.5.5 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.

6.5.6 As confirmed by the Contractor, no marine transportation and marine-based work was conducted during the reporting month. Therefore, it is concluded that the exceedances were not related the Contract.

6.5.7 Impact dolphin monitoring results in December 2018 at all transects are reported in the EM&A Reports prepared for Contract No. HY/2013/04

6.6 Summary of Complaints, Notification of Summons and Successful Prosecution

6.6.1 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.

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

6.6.3 Statistics on environmental complaints, notifications of summons and successful prosecutions are summarized in Appendix F.

7 Future Key Issues

7.1 Construction Programme for the Coming Months

7.1.1 The Contract No. HY/2013/01 was handed over to the relevant authorities since 24 October 2018 and the works site area had been changed to a closed area. No construction programme will be provided.

7.2 Environmental Site Inspection and Monitoring Schedule for the Coming Month

7.2.1 The Contract No. HY/2013/01 was handed over to the relevant authorities since 24 October 2018 and the works site area had been changed to a closed area. No site inspection will be conducted.

8 Conclusions

8.1 Conclusions

8.1.1 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. The fifty-first Monthly EM&A Report summarizes findings of the EM&A works during the reporting period from 1 to 31 December 2018 (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.

8.1.2 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.

8.1.3 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.

8.1.4 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.

8.1.5 Impact dolphin monitoring results at all transects in December 2018 are reported in the EM&A Reports prepared for Contract No. HY/2013/04.

8.1.6 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 the reporting period. Landscape Checklist is shown in Appendix A.

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

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