Contract No. HY/2011/03

Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road

Section between Scenic Hill and Hong Kong Boundary Crossing Facilities

 

 

 

 

 

 

Monthly EM&A Report No.93 (June 2020)

                                                                                                     

  14 July 2020

 

Revision 1

 

 

 

 

 

 

 

 

 

 

 

 

Main Contractor                                                                                   Designer


 


 


Contents

Executive Summary

1...... Introduction. 1

1.1                         Basic Project Information.. 1

1.2                         Project Organisation.. 2

1.3                         Construction Programme.. 2

1.4                         Construction Works Undertaken During the Reporting Month.. 2

2....... Air Quality Monitoring.. 4

2.1                         Monitoring Requirements. 4

2.2                         Monitoring Equipment 4

2.3                         Monitoring Locations. 4

2.4                         Monitoring Parameters, Frequency and Duration.. 5

2.5                         Monitoring Methodology.. 5

2.6                         Monitoring Schedule for the Reporting Month.. 7

2.7                         Monitoring Results. 7

3....... Noise Monitoring.. 9

3.1                         Monitoring Requirements. 9

3.2                         Monitoring Equipment 9

3.3                         Monitoring Locations. 9

3.4                         Monitoring Parameters, Frequency and Duration.. 9

3.5                         Monitoring Methodology.. 10

3.6                         Monitoring Schedule for the Reporting Month.. 10

3.7                         Monitoring Results. 11

4....... Water Quality Monitoring.. 12

4.1                         Monitoring Requirements. 12

4.2                         Monitoring Equipment 13

4.3                         Monitoring Parameters, Frequency and Duration.. 13

4.4                         Monitoring Locations. 14

4.5                         Monitoring Methodology.. 15

4.6                         Monitoring Schedule for the Reporting Month.. 16

4.7                         Monitoring Results. 16

5....... Dolphin Monitoring. 17

5.1                         Monitoring Requirements. 17

5.2                         Monitoring Methodology.. 17

5.3                         Monitoring Results. 19

6....... Mudflat Monitoring.. 20

6.1                         Sedimentation Rate Monitoring.. 20

6.2                         Water Quality Monitoring.. 21

6.3                         Mudflat Ecology Monitoring Methodology.. 22

6.4                         Event and Action Plan for Mudflat Monitoring.. 23

6.5                         Mudflat Ecology Monitoring Results and Conclusion.. 24

6.6                         Reference.. 35

7....... Environmental Site Inspection and Audit 37

7.1                         Site Inspection.. 37

7.2                         Advice on the Solid and Liquid Waste Management Status. 38

7.3                         Environmental Licenses and Permits. 39

7.4                         Implementation Status of Environmental Mitigation Measures. 39

7.5                         Summary of Exceedances of the Environmental Quality Performance Limit 39

7.6                         Summary of Complaints, Notification of Summons and Successful Prosecution.. 39

8....... Future Key Issues. 40

8.1                         Construction Programme for the Coming Months. 40

8.2                         Environmental Monitoring Schedule for the Coming Month.. 40

9....... Conclusions. 41

9.1                         Conclusions. 41

 

 

Figures

 

Figure 1.1       Location of the Site

Figure 2.1        Environmental Monitoring Stations

Figure 2.2     Transect Line Layout in Northwest and Northeast Lantau Survey Areas

Figure 6.1       Mudflat Survey Areas

 

Appendices

Appendix A     Environmental Management Structure

Appendix B     Construction Programme  

Appendix C     Calibration Certificates

Appendix D     Monitoring Schedule

Appendix E     Monitoring Data and Graphical Plots

Appendix F     Event and Action Plan

Appendix G     Wind Data

Appendix H     Not Used

Appendix I       Mudflat Monitoring Results

Appendix J      Waste Flow Table  

Appendix K     Cumulative Statistics on Complaints

Appendix L      Environmental Licenses and Permits

Appendix M    Implementation Schedule of Environmental Mitigation Measures

Appendix N     Record of ¡§Notification of Summons and Prosecutions¡¨

Appendix O     Location of Works Areas


 

Executive Summary

The Hong Kong-Zhuhai-Macao Bridge (HZMB) Hong Kong Link Road (HKLR) serves to connect the HZMB Main Bridge at the Hong Kong Special Administrative Region (HKSAR) Boundary and the HZMB Hong Kong Boundary Crossing Facilities (HKBCF) located at the north eastern waters of the Hong Kong International Airport (HKIA).

The HKLR project has been separated into two contracts. They are Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road-Section between Scenic Hill and Hong Kong Boundary Crossing Facilities (hereafter referred to as the Contract) and Contract No. HY/2011/09 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road-Section between HKSAR Boundary and Scenic Hill.

China State Construction Engineering (Hong Kong) Ltd. was awarded by Highways Department as the Contractor to undertake the construction works of Contract No. HY/2011/03.  The main works of the Contract include land tunnel at Scenic Hill, tunnel underneath Airport Road and Airport Express Line, reclamation and tunnel to the east coast of the Airport Island, at-grade road connecting to the HKBCF and highway works of the HKBCF within the Airport Island and in the vicinity of the HKLR reclamation.  The Contract is part of the HKLR Project and HKBCF Project, these projects are considered to be ¡§Designated Projects¡¨, under Schedule 2 of the Environmental Impact Assessment (EIA) Ordinance (Cap 499) and Environmental Impact Assessment (EIA) Reports (Register No. AEIAR-144/2009 and AEIAR-145/2009) were prepared for the Project.  The current Environmental Permit (EP) EP-352/2009/D for HKLR and EP-353/2009/K for HKBCF were issued on 22 December 2014 and 11 April 2016, respectively. These documents are available through the EIA Ordinance Register. The construction phase of Contract was commenced on 17 October 2012.

BMT Hong Kong Limited has been appointed by the Contractor to implement the Environmental Monitoring & Audit (EM&A) programme for the Contract in accordance with the Updated EM&A Manual for HKLR (Version 1.0) and will be providing environmental team services to the Contract.

This is the ninety-third Monthly EM&A report for the Contract which summarizes the monitoring results and audit findings of the EM&A programme during the reporting period from 1 to 30 June 2020.

Environmental Monitoring and Audit Progress

The monthly EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKLR (Version 1.0). A summary of the monitoring activities during this reporting month is listed below:

1-hr TSP Monitoring

2, 8, 12, 18, 24 and 30 June 2020

24-hr TSP Monitoring at AMS5

1, 5, 11, 18 and 29 June 2020

24-hr TSP Monitoring at AMS6

1, 5, 11, 17, 23 and 29 June 2020

Noise Monitoring

2, 8, 18, 24 and 30 June 2020

Water Quality Monitoring

Not applicable. Water quality monitoring was temporarily suspended during the reporting month.

Chinese White Dolphin Monitoring

Not applicable. Dolphin monitoring was temporarily suspended during the reporting month.

Site Inspection

3, 10, 17 and 26 June 2020

Mudflat Monitoring (Ecology)

17, 19, 22 and 23 June 2020

Mudflat Monitoring (Sedimentation Rate)

5 June 2020

 

Due to power failure, 24-hr TSP monitoring on 17 June 2020 at AMS5 was rescheduled to 18 June 2020.

 

Due to malfunction of high volume sampler (HVS) at AMS5, the 24-hr TSP monitoring on 23 June 2020 -**+was cancelled. Competent person repaired the HVS on 30 June 2020. The 24-hr TSP monitoring on 29 June 2020 at AMS5 was rescheduled to 30 June 2020.

Breaches of Action and Limit Levels                                                                                

A summary of environmental exceedances for this reporting month is as follows:

Environmental Monitoring

Parameters

Action Level (AL)

Limit Level (LL)

Air Quality

1-hr TSP

0

0

24-hr TSP

0

0

Noise

Leq (30 min)

0

0

Water Quality

Suspended solids level (SS)

N.A. (See Remark 1)

N.A. (See Remark 1)

Turbidity level

N.A. (See Remark 1)

N.A. (See Remark 1)

Dissolved oxygen level (DO)

N.A. (See Remark 1)

N.A. (See Remark 1)

Remark: 1) Not applicable. Water quality monitoring was temporarily suspended during the reporting month.

Complaint Log

There was no complaint received in relation to the environmental impacts during this reporting month.

Notifications of Summons and Prosecutions

There were no notifications of summons or prosecutions received during this reporting month.

Reporting Changes

This report has been developed in compliance with the reporting requirements for the subsequent EM&A reports as required by the Updated EM&A Manual for HKLR (Version 1.0). 

The proposal for the change of Action Level and Limit Level for suspended solid and turbidity was approved by EPD on 25 March 2013.

The revised Event and Action Plan for dolphin monitoring was approved by EPD on 6 May 2013.

The original monitoring station at IS(Mf)9 (Coordinate: 813273E, 818850N) was observed inside the perimeter silt curtain of Contract HY/2010/02 on 1 July 2013, as such the original impact water quality monitoring location at IS(Mf)9 was temporarily shifted outside the silt curtain.  As advised by the Contractor of HY/2010/02 in August 2013, the perimeter silt curtain was shifted to facilitate safe anchorage zone of construction barges/vessels until end of 2013 subject to construction progress.  Therefore, water quality monitoring station IS(Mf)9 was shifted to 813226E and 818708N since 1 July 2013.  According to the water quality monitoring team¡¦s observation on 24 March 2014, the original monitoring location of IS(Mf)9 was no longer enclosed by the perimeter silt curtain of Contract HY/2010/02. Thus, the impact water quality monitoring works at the original monitoring location of IS(Mf)9 has been resumed since 24 March 2014.

Transect lines 1, 2, 7, 8, 9 and 11 for dolphin monitoring have been revised due to the obstruction of the permanent structures associated with the construction works of HKLR and the southern viaduct of TM-CLKL, as well as provision of adequate buffer distance from the Airport Restricted Areas.  The EPD issued a memo and confirmed that they had no objection on the revised transect lines on 19 August 2015.

The water quality monitoring stations at IS10 (Coordinate: 812577E, 820670N) and SR5 (811489E, 820455N) are located inside Hong Kong International Airport (HKIA) Approach Restricted Areas. The previously granted Vessel's Entry Permit for accessing stations IS10 and SR5 were expired on 31 December 2016. During the permit renewing process, the water quality monitoring location was shifted to IS10(N) (Coordinate: 813060E, 820540N) and SR5(N) (Coordinate: 811430E, 820978N) on 2, 4 and 6 January 2017 temporarily. The permit has been granted by Marine Department on 6 January 2017. Thus, the impact water quality monitoring works at original monitoring location of IS10 and SR5 has been resumed since 9 January 2017.

Transect lines 2, 3, 4, 5, 6 and 7 for dolphin monitoring have been revised and transect line 24 has been added due to the presence of a work zone to the north of the airport platform with intense construction activities in association with the construction of the third runway expansion for the Hong Kong International Airport. The EPD issued a memo and confirmed that they had no objection on the revised transect lines on 28 July 2017. The alternative dolphin transect lines are adopted starting from August¡¦s dolphin monitoring.

A new water quality monitoring team has been employed for carrying out water quality monitoring work for the Contract starting from 23 August 2017. Due to marine work of the Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project), original locations of water quality monitoring stations CS2, SR5 and IS10 are enclosed by works boundary of 3RS Project. Alternative impact water quality monitoring stations, naming as CS2(A), SR5(N) and IS10(N) was approved on 28 July 2017 and were adopted starting from 23 August 2017 to replace the original locations of water quality monitoring for the Contract.

The role and responsibilities as the ET Leader of the Contract was temporarily taken up by Mr Willie Wong instead of Ms Claudine Lee from 25 September 2017 to 31 December 2017.

Water quality monitoring station SR10A(N) (Coordinate: 823644E, 823484N) was unreachable on 4 October 2017 during flood tide as fishing activities were observed. As such, the water monitoring at station SR10A(N) was conducted at Coordinate: 823484E, 823593N during flood tide on 4 October 2017 temporarily.

The topographical condition of the water monitoring stations SR3 (Coordinate: 810525E, 816456N), SR4 (Coordinate: 814760E, 817867N), SR10A (Coordinate: 823741E, 823495N) and SR10B (Coordinate: 823686E, 823213N) cannot be accessed safely for undertaking water quality monitoring. The water quality monitoring has been temporarily conducted at alternative stations, namely SR3(N) (Coordinate 810689E, 816591N), SR4(N) (Coordinate: 814705E, 817859N) and SR10A(N) (Coordinate: 823644E, 823484N) since 1 September 2017. The water quality monitoring at station SR10B was temporarily conducted at Coordinate: 823683E, 823187N on 1, 4, 6, 8 September 2017 and has been temporarily fine-tuned to alternative station SR10B(N2) (Coordinate: 823689E, 823159N) since 11 September 2017. Proposal for permanently relocating the aforementioned stations was approved by EPD on 8 January 2018.

The works area WA5 was handed over to other party on 22 June 2013.

According to latest information received in July 2018, the works area WA7 was handed over to other party on 28 February 2018 instead of 31 January 2018.

Original WQM stations IS8 and SR4(N) are located within the active work area of TCNTE project and the access to the WQM stations IS8 (Coordinate: E814251, N818412) and SR4(N) (Coordinate: E814705, N817859) are blocked by the silt curtains of the Tung Chung New Town Extension (TCNTE) project. Alternative monitoring stations IS8(N) (Coordinate: E814413, N818570) and SR4(N2) (Coordinate: E814688, N817996) are proposed to replace the original monitoring stations IS8 and SR4(N). Proposal for permanently relocating the aforementioned stations was approved by EPD on 20 August 2019. The water quality monitoring has been conducted at stations IS8(N) and SR4(N2) on 21 August 2019.

There were no marine works conducted by Contract No. HY/2011/03 since July 2019. A proposal for temporary suspension of marine related environmental monitoring (water quality monitoring and dolphin monitoring for the Contract No. HY/2011/03) was justified by the ET leader and verified by IEC in mid of September 2019 and it was approved by EPD on 24 September 2019. Water quality monitoring and dolphin monitoring for the Contract will not be conducted starting from 1 October 2019 until marine works (i.e. toe loading removal works) be resumed. As discussed with Contract No. HY/2012/08, they will take up the responsibility from Contract No. HY/2011/03 for the dolphin monitoring works starting from 1 October 2019.

According to information received in January 2020, the works area WA3 and WA4 were handed over to Highways Department on 23 December 2019 and 14 March 2019 respectively.

The role and responsibilities as the IEC of the Contract has been taken up by Mr Manson Yeung instead of Mr Ray Yan since 18 May 2020.

The future key issues include potential noise, air quality, water quality and ecological impacts and waste management arising from the following construction activities to be undertaken in the upcoming month:

¡P       Landscaping works at Portion X and Airport Road;

¡P       E&M works at Airport Road;

¡P       Finishing Works for Highway Operation and Maintenance Area (HMA) at Portion X;

¡P       Finishing Works for Scenic Hill Tunnel (SHT) Ventilation building at West Portal; and

¡P       G.I. Works at Maintenance Track of Portion X.