TABLE OF CONTENTS            

Page

EXECUTIVE SUMMARY  3

1       introduction  7

1.1     Background  7

1.2     Scope of Report 7

1.3     Contract Organization  8

1.4     Summary of Construction Works  9

2       Summary of EM&A Programme Requirements  10

2.1     Monitoring Parameters  10

2.2     Environmental Quality Performance (Action/Limit Levels) 12

2.3     Environmental Mitigation Measures  12

3       MONITORING Results  13

3.1     Air Quality Monitoring  13

3.2     Noise Monitoring  15

3.3     Water Quality Monitoring  16

3.4     Dolphin Monitoring  18

3.5     Environmental Site Inspection and Audit 19

4       Advice on the Solid and Liquid Waste Management Status  21

4.1     Summary of Solid and Liquid Waste Management 21

5       Implementation Status of Environmental Mitigation Measures  22

5.1     Implementation Status of Environmental Mitigation Measures  22

6       Summary of Exceedances of the Environmental Quality Performance Limit  24

6.1     Summary of Exceedances of the Environmental Quality Performance Limit 24

7       Summary of Complaints, Notification of Summons and Successful Prosecutions  25

7.1     Summary of Environmental Complaints, Notification of Summons and Successful Prosecutions  25

8       Comments, recommendations and Conclusions  26

8.1     Comments on mitigation measures  26

8.2     Recommendations on EM&A Programme  27

8.3     Conclusions  28

 

 

 


 

List of Tables

 

Table 1.1         Contact Information of Key Personnel

Table 3.1        Summary of Number of Exceedances for 1-hr & 24-hr TSP Monitoring

Table 3.3        Summary of Number of Monitoring Exceedances for Impact Noise

 

Figures

 

Figure 1            General Contract Layout Plan

Figure 2            Impact Air Quality and Noise Monitoring Stations and Wind Station

Figure 3a          Impact Water Quality Monitoring Stations

Figure 3b          Impact Water Quality Monitoring Stations (Effective after 8 September 2017)

Figure 4            Impact Dolphin Monitoring Line Transect Layout Map

Figure 5            Environmental Complaint Handling Procedure


List of Appendices

 

Appendix A       Contract Organization for Environmental Works

Appendix B       Three Month Rolling Construction Programmes

Appendix C       Implementation Schedule of Environmental Mitigation Measures (EMIS)

Appendix D      Summary of Action and Limit Levels

Appendix E       Quarterly Summary of Waste Flow Table

Appendix F       Cumulative Statistics on Exceedances, Complaints, Notifications of Summons and Successful Prosecutions

Appendix G       Event Action Plan

 


EXECUTIVE SUMMARY

Contract No. HY/2010/02 ¡V Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Reclamation Works (here below, known as ¡§the Contract¡¨) mainly comprises reclamation at the northeast  of  the  Hong  Kong  International  Airport  of  an  area  of  about  130-hectare  for  the construction of an artificial island for the development of the Hong Kong Boundary Crossing Facilities (HKBCF), and about 19-hectare for the southern landfall of the Tuen Mun - Chek Lap Kok Link (TMCLKL). It is a designated Project and is governed by the current permits for the Project, i.e. the amended Environmental Permits (EPs) issued on 11 April 2016 (EP-353/2009/K) and 13 March 2015 (EP-354/2009/D) (for TMCLKL Southern Landfall Reclamation only).

Ove Arup & Partners Hong Kong Limited (Arup) was appointed by Highways Department (HyD) as the consultants for the design and construction assignment for the Project¡¦s reclamation works (i.e. the Engineer for the Contract).

China Harbour Engineering Company Limited (CHEC) was awarded by HyD as the Contractor to undertake the construction work of the Contract.

Ramboll Environ Hong Kong Limited was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO) for the Project.

AECOM Asia Co. Ltd. (AECOM) was appointed by CHEC to undertake the role of Environmental Team for the Contract for carrying out the environmental monitoring and audit (EM&A) works.

The construction phase of the Project under the EPs was commenced on 12 March 2012. The EM&A programme, including air quality, noise, water quality and dolphin monitoring and environmental site inspections, was commenced on 12 March 2012.

This report documents the findings of EM&A works conducted in the period between 1 September 2017 ¡V 30 November 2017. As informed by the Contractor, major activities in the reporting quarter were:-

Marine-base

-       Maintenance of localized silt curtain

-       Outfall installation

-       Additional GI works

-       Reinstatement of seawall

 

Land-base

-       Maintenance works of Site Office at Works Area WA2

 

Reporting Change

 

With respect to substantial completion of marine works by the end of June 2017, it is anticipated that the remaining construction works under Contract No. HY/2010/02, which include ground investigation (GI) works, construction of temporary timber platform, removal of jetty and reinstatement of seawall at the western section and construction of outfall at the eastern seawall, would cause limited disturbance to water column and not to the seabed. In view of this, a proposal for change of EM&A programme/requirements was prepared by ET in accordance with Condition 5.1 of EP-353/2009/K and Condition 4.1 of EP-354/2009/D, to terminate water quality monitoring works at stations IS5, IS(Mf)6, IS8, SR4(N), SR5(N), SR6, SR10A, SR10B(N), CS4, CSA and CS6, and dolphin monitoring (line-transect vessel survey method) covering NEL and NWL when perimeter silt curtain under the Contract is completely removed and vessel traffic numbers average 10 per month for Contract No. HY/2010/02. A revised proposal has been updated and sent to IEC/ENPO for their further review on 15 August 2017 and IEC/ENPO verified the revised proposal on 16 August 2017. The revised proposal has been sent to authority by project team for review and approval on 21 August 2017. The authority subsequently approved the proposal on 7 September 2017.

 

Termination of water quality monitoring works at stations IS5, IS(Mf)6, IS8, SR4(N), SR5(N), SR6, SR10A, SR10B(N), CS4, CSA and CS6 for Contract No. HY/2010/02 are adopted starting from 8 September 2017.

 

The monthly EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0).  It should be noted that the air quality, noise, water quality and dolphin monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Passenger Clearance Building effective since 1 September 2017. The ET of the Contract is required to conduct EM&A monitoring as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2013/01.

 

As informed by IEC/ENPO on 28 September 2017, air quality monitoring station (AMS3B), meteorological station and noise monitoring station (NMS3B) were slightly relocated to AECOM PRE¡¦s Office effective since 1 September 2017.

 

 

 


A summary of monitoring* and audit activities conducted in the reporting quarter is listed below:

Joint Environmental site inspection

 14 sessions

 

*monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai Macao Bridge HKBCF ¡V Passenger Clearance Building.

 

Breaches of Action and Limit Levels for Air Quality

For impact air quality monitoring, 1 action level exceedance of 24-Hour TSP was recorded at AMS3B on 28 November 2017. After investigation, there is no adequate information to conclude the recorded action level exceedances are related to this Contract. No other 1-hour and 24-hour action and limit level exceedances was recorded at all monitoring stations by Environmental Team of Contract No. HY/2013/01 in the reporting period. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of November 2017.

Breaches of Action and Limit Levels for Noise

For construction noise, no exceedance was recorded at all monitoring stations in the reporting quarter.

Breaches of Action and Limit Levels for Water Quality

In September 2017, total of 82 action level exceedances for dissolved oxygen and 4 limit level exceedances were recorded on 1, 6, 8, 11, 13, 15, 18, 22, 27 & 29 September 2017. 3 action level exceedances for turbidity were recorded at IS(Mf)11 on 6 September and at IS10(N) & IS(Mf)11 on  8 September 2017 during flood tide. Total of 4 action level exceedances for suspended solids were recorded at IS8, SR4(N) & SR6 on 6 September 2017 and at IS(Mf)11 on 8 September 2017 during flood tide, 1 limit level exceedance was recorded on 8 September 2017 at IS10(N) during flood tide. After investigation, it was concluded that those exceedance were unlikely related to this Contract. No other exceedance was recorded at monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of September 2017.

In October 2017, 2 action level exceedances of suspended solids were recorded at IS(Mf)11 and SR7 during flood tide on 20 October 2017. After investigation, it was concluded that those exceedances were unlikely to be contract related. No other exceedance was recorded at all monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of October 2017.

In November 2017, 6 action level exceedances of suspended solids were recorded at IS(Mf)11, IS(Mf)16 and SR7 during flood tide on 3, 6, 8 and 20 November 2017. After investigation, it was concluded that those exceedances were unlikely to be contract related. No other exceedance was recorded at all monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of November 2017.

Breaches of Action and Limit Levels for Impact Dolphin Monitoring

Impact dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2013/01.

Implementation Status and Review of Environmental Mitigation Measures

Most of the recommended mitigation measures, as included in the EM&A programme, were implemented properly in the reporting quarter.

The recommended environmental mitigation measures effectively minimize the potential environmental impacts from the Project. The EM&A programme effectively monitored the environmental impacts from the construction activities and ensure the proper implementation of mitigation measures. No particular recommendation was advised for the improvement of the programme.

Moreover, regular review and checking on the construction methodologies, working processes and plants were carried out to ensure the environmental impacts were kept minimal and recommended environmental mitigation measures were implemented effectively.

Complaint, Notification of Summons and Successful Prosecution

A complaint was forwarded to us by ENPO on 27 October 2017; the complainant complained that yellowish muddy water was discharged into the sea from construction site location C3 of the artificial island of the Hong Kong-Zhuhai-Macao Bridge and this has been persist for one week. After investigation, there is no adequate information to conclude the complaint is related to this Contract.

A complaint was forwarded to us by ENPO on 23 November 2017; the complainant complained that, on Hong Kong- Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Artificial Island, due to watering was not provided to all areas, large amount of fugitive dust was generated, especially at the toll kiosks. After investigation, there is no adequate information to conclude the complaint is related to this Contract.

No notification of summons or prosecution was received in the reporting period.

 

 

1             introduction

1.1          Background

1.1.1       Contract No. HY/2010/02 ¡V Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Reclamation Works (here below, known as ¡§the Contract¡¨) mainly comprises reclamation at the northeast  of  the  Hong  Kong  International  Airport  of  an  area  of  about  130-hectare  for  the construction of an artificial island for the development of the Hong Kong Boundary Crossing Facilities (HKBCF), and about 19-hectare for the southern landfall of the Tuen Mun - Chek Lap Kok Link (TMCLKL).

1.1.2       The  environmental  impact  assessment  (EIA)  reports  (Hong  Kong  ¡V  Zhuhai  ¡V  Macao  Bridge Hong Kong Boundary Crossing Facilities ¡V EIA Report (Register No. AEIAR-145/2009) (HKBCFEIA) and Tuen Mun ¡V Chek Lap Kok Link ¡V EIA Report (Register No. AEIAR-146/2009) (TMCLKLEIA), and their environmental monitoring and audit (EM&A) Manuals (original EM&A Manuals), for the Project were approved by Environmental Protection Department (EPD) in October 2009. 

1.1.3       EPD  subsequently  issued  the  Environmental  Permit  (EP) for HKBCF in November 2009 (EP-353/2009) and the Variation of Environmental Permit (VEP) in June 2010 (EP-353/2009/A),  November  2010  (EP-353/2009/B), November  2011  (EP-353/2009/C), March 2012 (EP-353/2009/D), October 2012 (EP-353/2009/E), April 2013 (EP-353/2009/F), August 2013 (EP-353/2009/G), January 2015 (EP-353/2009/H), July 2015 (EP-353/2009/I), February 2016 (EP-353/2009/J) and April 2016 (EP-353/2009/K). Similarly, EPD issued the Environmental Permit (EP) for TMCLKL in November 2009 (EP-354/2009) and the Variation of Environmental Permit (VEP) in December 2010 (EP-354/2009/A), January 2014 (EP-354/2009/B), December 2014 (EP-354/2009/C) and March 2015 (EP-354/2009/D).

1.1.4       The Project is a designated Project and is governed by the current permits for the Project, i.e. the amended EPs issued on 11 April 2016 (EP-353/2009/K) and 13 March 2015 (EP-354/2009/D) (for TMCLKL Southern Landfall Reclamation only).

1.1.5       A Contract Specific EM&A Manual, which included all Contract -relation contents from the original EM&A Manuals for the Contract, was issued in May 2012.

1.1.6       Ove Arup & Partners Hong Kong Limited (Arup) was appointed by Highways Department (HyD) as the consultants for the design and construction assignment for the Project¡¦s reclamation works (i.e. the Engineer for the Contract).

1.1.7       China Harbour Engineering Company Limited (CHEC) was awarded by HyD as the Contractor to undertake the construction work of the Contract.

1.1.8       Ramboll Environ Hong Kong Limited was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO) for the Project.

1.1.9       AECOM Asia Co. Ltd. (AECOM) was appointed by CHEC to undertake the role of Environmental Team for the Contract for carrying out the EM&A works.

1.1.10    The construction phase of the Project under the EPs was commenced on 12 March 2012.

1.1.11    According to the Contract Specific EM&A Manual, there is a need of an EM&A programme including air quality, noise, water quality and dolphin monitoring and environmental site inspections. The EM&A programme of the Contract commenced on 12 March 2012.

1.2          Scope of Report

1.2.1       This is the twenty third quarterly EM&A Report under the Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Reclamation Works. This report presents a summary of the environmental monitoring and audit works, list of activities and mitigation measures proposed by the ET for the Contract from 1 September 2017 to 30 November 2017.


1.3          Contract Organization

1.3.1       The Contract organization structure is shown in Appendix A. 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


Engineer¡¦s Representative (ER)

(Ove Arup & Partners Hong Kong Limited)

Chief Resident Engineer

Paul Appleton

 

3698 5889

 

2698 5999

IEC / ENPO

 (Ramboll Hong Kong Limited)

Independent Environmental Checker

Raymond Dai

3465 2888

3465 2899

Environmental Project Office Leader

Y. H. Hui

3465 2850

3465 2899

Contractor

 

(China Harbour Engineering Company Limited)

Environmental Officer

Louie Chan

3693 2254

2578 0413

24-hour Hotline

Alan C.C. Yeung

9448 0325

--


ET

(AECOM Asia Company Limited)

ET Leader

Echo Leong

3922 9280

   2317 7609

 

 

 

 


1.4          Summary of Construction Works

1.4.1       The construction phase of the Project under the EP commenced on 12 March 2012.

1.4.2       As informed by the Contractor, details of the major works carried out in the reporting quarter are listed below:-

Marine-base

-       Maintenance of localized silt curtain

-       Outfall installation

-       Additional GI works

-       Reinstatement of seawall

 

Land-base

-       Maintenance works of Site Office at Works Area WA2

 

1.4.3       The 3-month rolling construction programme of the Contract is shown in Appendix B.

1.4.4       The general layout plan of the Contract site showing the detailed works areas is shown in Figure 1.

1.4.5       The environmental mitigation measures implementation schedule are presented in Appendix C.

 


2             Summary of EM&A Programme Requirements

2.1          Monitoring Parameters

2.1.1       The Contract Specific EM&A Manual designated 4 air quality monitoring stations, 2 noise monitoring stations, 21 water monitoring stations (9 Impact Stations, 7 Sensitive Receiver Stations and 5 Control/Far Field Stations) to monitor environmental impacts on air quality, noise and water quality respectively. Pre-set and fixed transect line vessel based dolphin survey was required in two AFCD designated areas (Northeast and Northwest Lantau survey areas). The impact dolphin monitoring at each survey area should be conducted twice per month.

2.1.2       For impact air quality monitoring, monitoring locations AMS2 (Tung Chung Development Pier) and AMS7 (Hong Kong SkyCity Marriott Hotel) were set up at the proposed locations in accordance with Contract Specific EM&A Manual. The conditional omission of Monitoring Station AMS6 was effective since 19 November 2012. For monitoring location AMS3 (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 the school. Permission on setting up and carrying 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 air quality monitoring was conducted at site boundary of the site office area in Works Area WA2 (AMS3B) respectively. Same baseline and Action Level for air quality, as derived from the baseline monitoring data recorded at Ho Yu College, was adopted for this alternative air quality location.

2.1.3       For impact noise monitoring, monitoring locations NMS2 (Seaview Crescent Tower 1) 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 the school. Permission on setting up and carrying 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 Works Area WA2 (NMS3B) respectively. Same baseline noise level, as derived from the baseline monitoring data recorded at Ho Yu College was adopted for this alternative noise monitoring location. Reference is made to ET¡¦s proposal of relocation of air quality monitoring station (AMS7) dated on 2 February 2015, with no further comment received from IEC on 2 February 2015 and no objection received from EPD on 5 February 2015, the impact air quality monitoring station AMS7 (Hong Kong SkyCity Marriott Hotel) has been relocated to AMS7A (Chu Kong Air-Sea Union Transportation Company Limited) on 3 February 2015. Action Level for air quality, as derived from the baseline monitoring data recorded at Hong Kong SkyCity Marriott Hotel, was adopted for this alternative air quality location.

2.1.4       As informed by the premises owner of (AMS7A) - Chu Kong Air-Sea Union Transportation Co. LTD would not grant us the permission to install air quality monitoring equipment (High volume sampler) and conduct 1-hour TSP/24 hour TSP monitoring at the premises of Chu Kong Air-Sea Union Transportation Co. LTD after December 2015. In order to fulfil the EM&A requirement of this Contract, as permission to conduct impact air quality monitoring at the premise of Hong Kong SkyCity Marriott Hotel has been granted in December 2015, ET proposed relocation of air quality monitoring station (AMS7A) on 15 December 2015, with no further comment received from IEC on 15 December 2015 and no particular comment received from EPD on 21 December 2015, the impact air quality monitoring station AMS7A (Chu Kong Air-Sea Union Transportation Company Limited) has been relocated to AMS7 (Hong Kong SkyCity Marriott Hotel) on 30 December 2015. The impact air quality monitoring for December 2015 was conducted before the relocation of AQM Station from AMS7A to AMS7. The impact air quality monitoring has been conducted at AMS7 (Hong Kong SkyCity Marriott Hotel) since 1 January 2016, Action Level for air quality, as derived from the baseline monitoring data recorded at Hong Kong SkyCity Marriott Hotel will be adopted for this air quality monitoring location.

2.1.5       In accordance with the Contract Specific EM&A Manual, twenty-one 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.

2.1.6       Due to safety concern and topographical condition of the original locations of SR4 and SR10B, alternative impact water quality monitoring stations, naming as SR4(N) and SR10B(N), were adopted, which are situated in vicinity of the original impact water quality monitoring stations (SR4 and SR10B) and could be reachable. Same baseline and Action Level for water quality, as derived from the baseline monitoring data recorded, were adopted for these alternative impact water quality monitoring stations.

2.1.7       The monitoring locations used during the reporting quarter are depicted in Figures 2, 3 and 4   respectively.

2.1.8       Due to the commencement of marine work of the Expansion of Hong Kong International Airport into  a  Three-Runway  System  (3RS  Project),  a  large  portion  of  works  site  boundary  will  be established at the northern part of the existing airport Island. The recent arrangement of works boundary of 3RS Project which delineates the boundary of the designated 3RS Project (for the indicative 3RS boundary, please refer to Figure 5).  The works area of 3RS project will affect several water quality monitoring stations and the  dolphin  monitoring  transect  lines  which  are  being  used  for  conducting  monitoring  under Contract No. HY/2010/02.  The EM&A Programme for the HZMB HKBCF Project will therefore be affected. As a result, a proposal was prepared by ET in September 2016 in accordance with condition 5.1 of EP-353/2009/K and condition 4.1 of EP-354/2009/D, to relocate water quality monitoring stations from SR5, IS10, CS(Mf)3  and alternate the transect lines of impact dolphin monitoring 2, 3, 4, 5, 6 and 7.  A revised proposal has been updated and sent to IEC/ENPO for their further review on 24 March 2017 and IEC/ENPO verified the revised proposal on the same date. The revised proposal has been sent to authority by project team for review and approval on 3 April 2017. The authority subsequently approved the proposal on 12 May 2017.

2.1.9       Due to substantial completion of marine works by the end of June 2017, it is anticipated that the remaining construction works under Contract No. HY/2010/02, which include ground investigation (GI) works, construction of temporary timber platform, removal of jetty and reinstatement of seawall at the western section, construction of outfall at the eastern seawall, would cause limited disturbance to water column and not to the seabed. In view of this, a proposal for change of EM&A programme/requirements was prepared by ET in accordance with Condition 5.1 of EP-353/2009/K and Condition 4.1 of EP-354/2009/D, to terminate water quality monitoring works at stations IS5, IS(Mf)6, IS8, SR4(N), SR5(N), SR6, SR10A, SR10B(N), CS4, CSA and CS6, and impact dolphin monitoring (line-transect vessel survey method) covering NEL and NWL when perimeter silt curtain under the Contract is completely removed and vessel traffic numbers average 10 per month for Contract No. HY/2010/02. A revised proposal has been updated and sent to IEC/ENPO for their further review on 15 August 2017 and IEC/ENPO verified the revised proposal on 16 August 2017. The revised proposal has been sent to authority by project team for review and approval on 21 August 2017. The authority subsequently approved the proposal on 7 September 2017.

2.1.10    The Contract Specific EM&A Manual also required environmental site inspections for air quality, noise, water quality, chemical, waste management, marine ecology and landscape and visual impact.


2.2          Environmental Quality Performance (Action/Limit Levels)

2.2.1       The environmental quality performance limits (i.e. Action and/or Limit Levels) of air and water quality monitoring were derived from the baseline air and water quality monitoring results at the respective monitoring stations, while the environmental quality performance limits of noise monitoring were defined in the EM&A Manual.

2.2.2       The environmental quality performance limits of air quality, noise and water monitoring are given in Appendix D.

2.3          Environmental Mitigation Measures

2.3.1       Relevant environmental mitigation measures were stipulated in the Particular Specification and EPs (EP-353/2009/K and EP-354/2009/D) (for TMCLKL Southern Landfall Reclamation only) for the Contractor to adopt. A list of environmental mitigation measures and their implementation statuses are given in Appendix C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3             MONITORING Results

3.1          Air Quality Monitoring

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 at the 4 monitoring stations (AMS2, AMS3B, AMS6 and AMS7).

3.1.2       The air quality monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai Macao Bridge HKBCF ¡V Passenger Clearance Building.

3.1.3       The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology, monitoring schedule and meteorological information are detailed in the monthly EM&A Reports prepared for Contract No. HY/2013/01.

3.1.4       The ET of the Contract or other ET of the HZMB project is required to conduct air quality monitoring at AMS2, AMS3B and AMS7 as part of EM&A programme if these air quality monitoring stations are no longer covered under Contract No. HY/2013/01.

3.1.5       The monitoring locations for impact air quality monitoring are depicted in Figure 2. However, for AMS6 (Dragonair/CNAC (Group) Building), permission on setting up and carrying out impact monitoring works was sought, however, access to the premise has not been granted yet on this report issuing date.

3.1.6       As informed by IEC/ENPO on 28 September 2017, air quality monitoring station (AMS3B) and the meteorological station were relocated to AECOM PRE¡¦s Office effective since 1 September 2017.

3.1.7       The number of exceedances recorded in each month of the reporting quarter are presented in Table Table 3.1.

Table 3.1            Summary of Number of Exceedances for 1-hr & 24-hr TSP Monitoring

Monitoring Parameter

Location

Level of Exceedance

Numbers of Exceedance

Sept 17

Oct 17

Nov 17

1-hr TSP

AMS2

Action

0

0

0

Limit

0

0

0

AMS3B

Action

0

0

0

Limit

0

0

0

AMS7

Action

0

0

0

Limit

0

0

0

 

Total

0

0

0

24-hr TSP

AMS2

Action

0

0

0

Limit

0

0

0

AMS3B

Action

0

0

1

Limit

0

0

0

AMS7

Action

0

0

0

Limit

0

0

0

 

Total

0

0

1

 

3.1.8       The monitoring results for 1-hour TSP and 24-hour TSP are reported in the monthly EM&A Report prepared for Contract No. HY/2013/01.

3.1.9       There was 1 action level exceedance of 24-hour TSP recorded by ET of Contract No. HY/2013/01 at AMS3B on 28 November 2017 8:00am to 29 November 2017 8:00am.

3.1.10    After investigation, there is no adequate information to conclude the recorded action level exceedances are related to this Contract.

3.1.11    For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A Report November 2017.

3.1.11.1     After investigation, it was concluded that the recorded exceedance was unlikely to cause by construction works under this Contract since all dusty materials adopted which might generate fugitive dust were wet with sea water for dust suppression. Meteorological information provided by Contract No. HY2013/01 during the monitoring period showed East and Southeast winds were prevailing with wind speed ranging from 0-0.4m/s, indicating the source of exceedance was unlikely to be Contract related.

3.1.11.2     The detailed Investigation Report No. A030 (including the causes of exceedance and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix F of monthly EM&A report of November 2017.

3.1.12    No other 1-hour and 24-hour action and limit level exceedances was recorded at all monitoring stations by Environmental Team of Contract No. HY/2013/01 in the reporting period.

3.1.13    The event action plan is annexed in Appendix G.

3.1.14    Meteorological information collected from the wind station during the monitoring periods on the monitoring dates, as shown in Figure 2, including wind speed and wind direction, was recorded at all monitoring stations and reported by Environmental Team of Contract No. HY/2013/01 in the reporting period.


3.2          Noise Monitoring

3.2.1       Impact noise monitoring was conducted at the 2 monitoring stations (NMS2 and NMS3B) for at least once per week during 07:00 ¡V 19:00 in the reporting quarter.

3.2.2       The monitoring locations used during the reporting quarter are depicted in Figure 2.

3.2.3       The impact noise monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai Macao Bridge HKBCF ¡V Passenger Clearance Building.

3.2.4       The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology and monitoring schedule are detailed in the monthly EM&A Reports prepared for Contract No. HY/2013/01.

3.2.5       The ET of the Contract or other ET of the HZMB project is required to conduct impact noise monitoring at NMS2 and NMS3B as part of EM&A programme if these impact noise monitoring stations are no longer covered under Contract No. HY/2013/01.

3.2.6       If exceedance(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.

3.2.7       No Action or Limit Level Exceedance of construction noise was recorded in the reporting quarter.

3.2.8       Major noise sources during the noise monitoring included construction activities of the Project and nearby traffic noise.

3.2.9       The number of exceedances are summarized in and Table 3.3.

Table 3.3            Summary of Number of Monitoring Exceedances for Impact Noise

Monitoring Parameter

Location

Level of Exceedance

Number of Exceedance

Sept 17

Oct 17

Nov 17

NMS2

Action

0

0

0

Limit

0

0

0

NMS3B

Action

0

0

0

Limit

0

0

0

 

Total

0

0

0

 

3.2.10    The graphical plots of the trends of the monitoring results are provided by Contract No. HY/2013/01. No specific trend of the monitoring results or existence of persistent pollution source was noted.

3.2.11    The event action plan is annexed in Appendix G.

 


3.3          Water Quality Monitoring

3.3.1      The monitoring locations used during the reporting quarter are depicted in Figure 3a and 3b. Figure 3a shows the Impact water quality monitoring stations before the proposal for scaling down of EM&A programme was approved by the Authority on 7 September 2017. Figure 3b shows the Impact water quality monitoring stations retained after the proposal for scaling down of EM&A programme was approved by the Authority on 7 September 2017.

3.3.2      In the reporting month of September 2017, total of 82 action level exceedances for dissolved oxygen and 4 limit level exceedances were recorded on 1, 6, 8, 11, 13, 15, 18, 22, 27 & 29 September 2017. 3 action level exceedances for turbidity were recorded at IS(Mf)11 on 6 September and at IS10(N) & IS(Mf)11 on  8 September 2017 during flood tide. Total of 4 action level exceedances for suspended solids were recorded at IS8, SR4(N) & SR6 on 6 September 2017 and at IS(Mf)11 on 8 September 2017 during flood tide, 1 limit level exceedance was recorded on 8 September 2017 at IS10(N) during flood tide. After investigation, it was concluded that those exceedance were unlikely related to this Contract. No other exceedance was recorded at monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of reporting month September 2017.

3.3.2.1     After investigation, the recorded dissolved oxygen exceedances were not relevant to this Contract since no organic matter discharge/accumulation at active works area was observed and there were only outfall pipeline installation works and seawall construction carried out which were unlikely to cause deterioration of DO at the monitoring stations recorded in tables of Appendix E of monthly EM&A report of reporting month September 2017.

3.3.2.2     It was concluded that the 3 turbidity and 5 suspended solids exceedances recorded on 6 & 8 September 2017 were unlikely related to Construction works under this Contract after investigation since photo record provided by the Contract showed that active works area was confined within silt curtain which was properly maintained. Only outfall pipeline works was carried out on above mentioned dates which was unlikely to cause elevation of turbidity and SS at the monitoring stations recorded in tables of Appendix E of monthly EM&A report of reporting month September 2017.

3.3.2.3     The detailed Investigation Reports No. W109-W118 (including the causes of exceedance and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix F of monthly EM&A report of reporting month September 2017. 

3.3.3      In the reporting monthly of October, 2 action level exceedances of suspended solids were recorded at IS(Mf)11 and SR7 during flood tide on 20 October 2017. After investigation, it was concluded that those exceedance were unlikely related to Construction works under this Contract. No other exceedance was recorded at monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of reporting month October 2017.

3.3.3.1     After investigation, it was concluded that the recorded exceedances of suspended solids on 20 October 2017 were unlikely related to Construction works under this Contract since photo record on 21 & 26 October 2017 provided by the Contractor showed that active works area was confined within silt curtain which was properly maintained and no silt plume was observed. Only seawall construction and outfall pipeline installation were carried out which were unlikely to cause elevation of SS at the monitoring stations recorded in table of Appendix E of monthly EM&A report of reporting month October 2017.

3.3.3.2     The detailed Investigation Reports No. W119 (including the causes of exceedance and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix F of monthly EM&A report of reporting month October 2017. 

3.3.4      In the reporting month of November, 6 action level exceedances of suspended solids were recorded at IS(Mf)11 , IS(Mf)16 and SR7 during flood tide on 3, 6, 8 and 20 November 2017. After investigation, it was concluded that those exceedance were unlikely related to Construction works under this Contract. No other exceedance was recorded at monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of reporting month November 2017.

3.3.4.1   After investigation, it was concluded that the recorded exceedances of suspended solids in November 2017 were unlikely related to Construction works under this Contract since photo records provided by the Contractor showed that active works area was confined within silt curtain which was properly maintained and no silt plume was observed. Only seawall construction and outfall pipeline installation were carried out which were unlikely to cause elevation of SS at the monitoring stations recorded in table of Appendix E of monthly EM&A report of reporting month November 2017.

3.3.4.2   The detailed Investigation Reports No. W120-123 (including the causes of exceedance and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix F of monthly EM&A report of reporting month November 2017.

3.3.5      No other exceedance was recorded at all monitoring stations in the reporting quarter.

3.3.6      The event action plan is annexed in Appendix G.

 

 


3.4          Dolphin Monitoring

3.4.1       The layout map of impact dolphin monitoring have been provided by AFCD and is shown in Figure 4.

3.4.2       The monitoring results for impact dolphin monitoring are reported in the monthly EM&A Reports (for September 2017 and November 2017) prepared for Contract No. HY/2013/01.


3.5          Environmental Site Inspection and Audit

3.5.1       Site Inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures for the Project. In the reporting quarter, 14 site inspections were carried out. Recommendations on remedial actions were given to the Contractors for the deficiencies identified during the site audits.

3.5.2       Particular observations during the site inspections are described below:

Air Quality

 

3.5.3       Discolored NRMM label were affixed on generator near Portion B and excavator at Portion A, the Contractor was reminded to affix appropriate label on the generator and excavator. Appropriate NRMM label was affixed on the concerned generator. (Closed) The Contractor was reminded to affix appropriate label on the excavator. (Reminder)

3.5.4       The Contractor was reminded to provide effective dust suppression mechanism by spraying water or dust suppression chemical during operation of excavate work. (Reminder)

3.5.5       Dark smoke emission was observed from derrick lighter barge (§Q¯è8) at Portion A. The Contractor was reminded that smoke emission from plant/equipment should be avoided. As informed by Contractor, the concerned barge has been removed from the site. (Closed)

3.5.6       Generator (Airman SDG25) without NRMM label was observed on jack- up barge, Fugro Kingstown. The Contractor was reminded to check and confirm if NRMM label is required or available for the concerned PME. As informed by the Contractor, the concerned generator was removed from barge. (Closed)

3.5.7       Discoloured NRMM label was observed on excavator near Portion B. The Contractor was reminded to affix appropriate NRMM label. The Contractor subsequently affixed appropriate NRMM label on the concerned excavator. (Closed)

3.5.8       Drilling machine without NRMM label was observed on jack-up barge, B40529VSNIPE. The Contractor was reminded to affix approved NRMM label on the concerned drilling machine. The Contractor subsequently affixed appropriate NRMM label on the concerned drilling machine. (Closed)

3.5.9       Generator without NRMM label was observed on jack-up barge, Fugro Kingstown. The Contractor was reminded to affix approved NRMM label on the concerned generator. The Contractor subsequently rectified the adverse observation. (Closed)

Noise

 

3.5.10    No relevant adverse impact was observed in the reporting month.

Water Quality

 

3.5.11    It was observed that silt curtain around the outfall of Portion B was disconnected on 17 and 24 August 2017, the Contractor was reminded to reinstate the silt curtain at the concerned area and provide maintenance regularly. According to the Contractor, silt curtain around the outfall of Portion B was reinstated and properly maintained. (Closed)

3.5.12    Stagnant water and general refuse were observed at site entrance and Portion B. The Contractor was reminded to clean stagnant water regularly to keep the site clean and tidy. (Reminder)

3.5.13    Disconnected silt curtain was observed at Portion A. The Contractor was reminded to reinstate concerned silt curtain and provide regular maintenance. The Contractor subsequently rectified the adverse observation (Closed)

Chemical and Waste Management

 

3.5.14    Spilled oil from generator was observed retaining on drip tray at Portion B. The Contractor was reminded to clear spilled oil. The Contractor subsequently cleared the oil retained on drip tray. (Reminder)

3.5.15    General refuse were observed at outfall area of Portion B. The Contractor was reminded to keep the site clean and tidy. The Contractor subsequently cleared general refuse at outfall area of Portion B. (Reminder)

3.5.16    The Contractor was reminded to clear oil retained in drip tray on Chun Ming 98 and dispose as chemical waste. (Reminder)

Ecological impact

 

3.5.17    The Contractor was reminded to implement dolphin watching for additional works. As informed by Contractor, dolphin watching for additional works was implemented at Outfall and Western Portion Seawall. (Reminder)

Landscape and Visual Impact

 

3.5.18    No relevant adverse impact was observed in the reporting quarter.

Others

 

3.5.19    Environmental Permit was not observed on Furgo Kingstown, the Contractor was reminded to affix valid Environmental Permit on barge for Contract No. HY/2010/02. The Contractor subsequently provided valid Environmental Permit on barge. (Closed)

3.5.20    Rectifications of remaining identified items are undergoing by the Contractor. Follow-up inspections on the status on provision of mitigation measures will be conducted to ensure all identified items are mitigated properly.


4             Advice on the Solid and Liquid Waste Management Status

4.1          Summary of Solid and Liquid Waste Management

 

4.1.1       The Contractor had registered as a chemical waste producer for this Project. Receptacles were available for general refuse collection and sorting.

4.1.2       As advised by the Contractor, 252kg of paper/cardboard packaging and 32.5m3 of others, e.g. general refuse were generated and disposed of in the reporting period. Monthly summary of waste flow table is detailed in Appendix E. 

4.1.3       The Contractor is advised to properly maintain on site C&D materials and wastes storage, collection, sorting and recording system, dispose of C&D materials and wastes at designated ground and maximize reuse / recycle of C&D materials and wastes. The Contractor is reminded to properly maintain the site tidiness and dispose of the wastes accumulated on site regularly and properly.

4.1.4       The Contractor is reminded that chemical waste should be properly treated and stored temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labeling and Storage of Chemical Wastes.

4.1.5       After checking with the Contractor, no surplus surcharge was exported to Macau during the reporting quarter. The Contractor was reminded to ensure  consistency  in  quantities in  case  of  any  C&D  material  disposed  off-site  and/or  no surcharge material removed off site.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5             Implementation Status of Environmental Mitigation Measures

5.1          Implementation Status of Environmental Mitigation Measures

5.1.1       In response to the site audit findings, the Contractors carried out corrective actions.

5.1.2       A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix C. Most of the recommended mitigation measures are being upheld. Moreover, regular review and checking on the construction methodologies, working processes and plants were carried out to ensure the environmental impacts were kept minimal and recommended environmental mitigation measures were implemented effectively. 

5.1.3       Training of marine travel route for marine vessels operator was given to relevant staff and relevant records were kept properly.

5.1.4       Regarding the implementation of dolphin monitoring and protection measures (i.e. implementation of Dolphin Watching Plan, Dolphin Exclusion Zone and Silt Curtain integrity Check), regular checks were conducted by experienced MMOs within the works area to ensure that no dolphins were trapped by the silt curtain area. There were no dolphins spotted within the silt curtain during this quarter. The relevant procedures were followed and all measures were well implemented. The silt curtains were also inspected in accordance to the submitted plan.

5.1.5       Acoustic decoupling measures on noisy plants on construction vessels were checked regularly and the Contractor was reminded to ensure provision of ongoing maintenance to noisy plants and to carry out improvement work once insufficient acoustic decoupling measures were found.

5.1.6       Frequency of watering per day on exposed soil was checked; with reference to the record provided by the Contract, watering was conducted at least 8 times per day on reclaimed land. The frequency of watering is the mainly refer to water truck. Sprinklers are only served to strengthen dust control measure for busy traffic at the entrance of Portion D. As informed by the Contractor, during the mal-function period of sprinkler, water truck will enhance watering at such area. The Contractor was reminded to ensure provision of watering of at least 8 times per day on all exposed soil within the reporting period.   

5.1.7       Due to the commencement of marine work of the Expansion of Hong Kong International Airport into  a  Three-Runway  System  (3RS  Project),  a  large  portion  of  works  site  boundary  will  be established at the northern part of the existing airport Island. The recent arrangement of works boundary of 3RS Project which delineates the boundary of the designated 3RS Project (for the indicative 3RS boundary, please refer to Figure 5).  The works area of 3RS project will affect several water quality monitoring stations and the  dolphin  monitoring  transect  lines  which  are  being  used  for  conducting  monitoring  under Contract No. HY/2010/02.  The EM&A Programme for the HZMB HKBCF Project will therefore be affected. As a result, a proposal was prepared by ET in September 2016 in accordance with condition 5.1 of EP-353/2009/K and condition 4.1 of EP-354/2009/D, to relocate water quality monitoring stations from SR5, IS10, CS(Mf)3  and alternate the transect lines of impact dolphin monitoring 2, 3, 4, 5, 6 and 7.  Comment was subsequently received from IEC/ENPO. The comments were under ET¡¦s review in the reporting quarter. A revised proposal has been updated and sent to IEC/ENPO for their further review on 24 March 2017 and IEC/ENPO verified the revised proposal on the same date. The revised proposal has been sent to authority by project team for review and approval on 3 April 2017. The authority subsequently approved the proposal on 12 May 2017.

5.1.8       Due to substantial completion of marine works by the end of June 2017, it is anticipated that the remaining construction works under Contract No. HY/2010/02, which include ground investigation (GI) works, construction of temporary timber platform, removal of jetty and reinstatement of seawall at the western section, construction of outfall at the eastern seawall, would cause limited disturbance to water column and not to the seabed. In view of this, a proposal for change of EM&A programme/requirements was prepared by ET in accordance with Condition 5.1 of EP-353/2009/K and Condition 4.1 of EP-354/2009/D, to terminate water quality monitoring works at stations IS5, IS(Mf)6, IS8, SR4(N), SR5(N), SR6, SR10A, SR10B(N), CS4, CSA and CS6, and impact dolphin monitoring (line-transect vessel survey method) covering NEL and NWL when perimeter silt curtain under the Contract is completely removed and vessel traffic numbers average 10 per month for Contract No. HY/2010/02. A revised proposal has been updated and sent to IEC/ENPO for their further review on 15 August 2017 and IEC/ENPO verified the revised proposal on 16 August 2017. The revised proposal has been sent to authority by project team for review and approval on 21 August 2017. The authority subsequently approved the proposal on 7 September 2017.

5.1.9       After review, no floating grout production was in operation at any time in reporting period for Contract No.HY/2010/02. Condition 3.26A of EP-353/2009/K for Contract No.HY/2010/02 is complied with during the reporting quarter.       


6             Summary of Exceedances of the Environmental Quality Performance Limit

6.1          Summary of Exceedances of the Environmental Quality Performance Limit

6.1.1       For impact air quality monitoring, 1 action level exceedance of 24-Hour TSP was recorded at AMS3B on 28 November 2017. After investigation, there is no adequate information to conclude the recorded action level exceedances are related to this Contract. No other 1-hour and 24-hour action and limit level exceedances was recorded at all monitoring stations by Environmental Team of Contract No. HY/2013/01 in the reporting period. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of corresponding monthly EM&A report

6.1.2       For construction noise, no exceedance was recorded at all monitoring stations in the reporting quarter.

6.1.3       For impact water quality monitoring:

6.1.3.1        In September 2017, total of 82 action level exceedances for dissolved oxygen and 4 limit level exceedances were recorded on 1, 6, 8, 11, 13, 15, 18, 22, 27 & 29 September 2017. 3 action level exceedances for turbidity were recorded at IS(Mf)11 on 6 September and at IS10(N) & IS(Mf)11 on  8 September 2017 during flood tide. Total of 4 action level exceedances for suspended solids were recorded at IS8, SR4(N) & SR6 on 6 September 2017 and at IS(Mf)11 on 8 September 2017 during flood tide, 1 limit level exceedance was recorded on 8 September 2017 at IS10(N) during flood tide. After investigation, it was concluded that those exceedance were unlikely related to this Contract. No other exceedance was recorded at monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of September 2017.

6.1.3.2        In October 2017, 2 action level exceedances of suspended solids were recorded at IS(Mf)11 and SR7 during flood tide on 20 October 2017. After investigation, it was concluded that those exceedances were unlikely to be contract related. No other exceedance was recorded at all monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of October 2017.

6.1.3.3        In November 2017, 6 action level exceedances of suspended solids were recorded at IS(Mf)11, IS(Mf)16 and SR7 during flood tide on 3, 6, 8 and 20 November 2017. After investigation, it was concluded that those exceedances were unlikely to be contract related. No other exceedance was recorded at all monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of November 2017.

6.1.4       For impact dolphin monitoring, impact dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2013/01.

6.1.5       Cumulative statistics on exceedances is provided in Appendix F.

 


7             Summary of Complaints, Notification of Summons and Successful Prosecutions

7.1          Summary of Environmental Complaints, Notification of Summons and Successful Prosecutions

7.1.1       The Environmental Complaint Handling Procedure is annexed in Figure 5.

7.1.2       A complaint was forwarded to us by ENPO on 27 October 2017; the complainant complained that yellowish muddy water was discharged into the sea from construction site location C3 of the artificial island of the Hong Kong-Zhuhai-Macao Bridge and this has been persist for one week. After investigation, there is no adequate information to conclude the complaint is related to this Contract.

7.1.3       A complaint was forwarded to us by ENPO on 23 November 2017; the complainant complained that, on Hong Kong- Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Artificial Island, due to watering was not provided to all areas, large amount of fugitive dust was generated, especially at the toll kiosks. After investigation, there is no adequate information to conclude the complaint is related to this Contract.

7.1.4       Notification of summons or prosecution was received in the reporting quarter.   

7.1.5       Statistics on complaints, notifications of summons and successful prosecutions are summarized in Appendix N.

 

 


8              Comments, recommendations and Conclusions

8.1          Comments on mitigation measures

8.1.1       According to the environmental site inspections performed in the reporting quarter, the following recommendations were provided:

Air Quality Impact

¡P      All working plants and vessels on site should be regularly inspected and properly maintained to avoid dark smoke emission.

¡P      All vehicles should be washed to remove any dusty materials before leaving the site.

¡P      Haul roads should be sufficiently dampened to minimize fugitive dust generation.

¡P      Wheel washing facilities should be properly maintained and reviewed to ensure properly functioning.

¡P      Temporary exposed slopes and open stockpiles should be properly covered.

¡P      Enclosure should be erected for cement debagging, batching and mixing operations.

¡P      Water spraying should be provided to suppress fugitive dust for any dusty construction activity.

¡P      Regular review and provide maintenance to dust control measures such as sprinkler system.

Construction Noise Impact

¡P      Quieter powered mechanical equipment should be used as far as possible.

¡P      Noisy operations should be oriented to a direction away from sensitive receivers as far as possible.

¡P      Proper and effective noise control measures for operating equipment and machinery on-site should be provided, such as erection of movable noise barriers or enclosure for noisy plants. Closely check and replace the sound insulation materials regularly

¡P      Vessels and equipment operating should be checked regularly and properly maintained.

¡P      Noise Emission Label (NEL) shall be affixed to the air compressor and hand-held breaker operating within works area.

¡P      Acoustic decoupling measures should be properly implemented for all existing and incoming construction vessels with continuous and regularly checking to ensure effective implementation of acoustic decoupling measures.

Water Quality Impact

¡P      Regular review and maintenance of silt curtain systems, drainage systems and desilting facilities in order to make sure they are functioning effectively.

¡P      Construction of seawall should be completed as early as possible.

¡P      Regular inspect and review the loading process from barges to avoid splashing of material.

¡P      Silt, debris and leaves accumulated at public drains, wheel washing bays and perimeter u-channels and desilting facilities should be cleaned up regularly.

¡P      Silty effluent should be treated/ desilted before discharged. Untreated effluent should be prevented from entering public drain channel.

¡P      Proper drainage channels/bunds should be provided at the site boundaries to collect/intercept the surface run-off from works areas.

¡P      Exposed slopes and stockpiles should be covered up properly during rainstorm.

Chemical and Waste Management

¡P      All types of wastes, both on land and floating in the sea, should be collected and sorted properly and disposed of timely and properly. They should be properly stored in designated areas within works areas temporarily.

¡P      All chemical containers and oil drums should be properly stored and labelled.

¡P      All plants and vehicles on site should be properly maintained to prevent oil leakage.

¡P      All kinds of maintenance works should be carried out within roofed, paved and confined areas.

¡P      All drain holes of the drip trays utilized within works areas should be properly plugged to avoid any oil and chemical waste leakage.

¡P      Oil stains on soil surface and empty chemical containers should be cleared and disposed of as chemical waste.

¡P      Regular review should be conducted for working barges and patrol boats to ensure sufficient measures and spill control kits were provided on working barges and patrol boats to avoid any spreading of leaked oil/chemicals.

Landscape and Visual Impact

¡P      All existing, retained/transplanted trees at the works areas should be properly fenced off and regularly inspected.

¡P      Control night-time lighting and glare by hooding all lights.

8.2          Recommendations on EM&A Programme

8.2.1       The impact monitoring programme for air quality, noise, water quality and dolphin ensured that any deterioration in environmental condition was readily detected and timely actions taken to rectify any non-compliance. Assessment and analysis of monitoring results collected demonstrated the environmental impacts of the Project. With implementation of recommended effective environmental mitigation measures, the Project¡¦s environmental impacts were considered as environmentally acceptable. The weekly environmental site inspections ensured that all the environmental mitigation measures recommended were effectively implemented.

8.2.2       The recommended environmental mitigation measures, as included in the EM&A programme, effectively minimize the potential environmental impacts from the Project. Also, the EM&A programme effectively monitored the environmental impacts from the construction activities and ensure the proper implementation of mitigation measures. No particular recommendation was advised for the improvement of the programme.


8.3          Conclusions

8.3.1       The construction phase and EM&A programme of the Project commenced on 12 March 2012.

8.3.2       For impact air quality monitoring, 1 action level exceedance of 24-Hour TSP was recorded at AMS3B on 28 November 2017. After investigation, there is no adequate information to conclude the recorded action level exceedances are related to this Contract. No other 1-hour and 24-hour action and limit level exceedances was recorded at all monitoring stations by Environmental Team of Contract No. HY/2013/01 in the reporting period. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of November 2017.

8.3.3       For construction noise, no exceedance was recorded at all monitoring stations in the reporting quarter.

8.3.4       For water quality monitoring:

8.3.4.1        In September 2017, total of 82 action level exceedances for dissolved oxygen and 4 limit level exceedances were recorded on 1, 6, 8, 11, 13, 15, 18, 22, 27 & 29 September 2017. 3 action level exceedances for turbidity were recorded at IS(Mf)11 on 6 September and at IS10(N) & IS(Mf)11 on  8 September 2017 during flood tide. Total of 4 action level exceedances for suspended solids were recorded at IS8, SR4(N) & SR6 on 6 September 2017 and at IS(Mf)11 on 8 September 2017 during flood tide, 1 limit level exceedance was recorded on 8 September 2017 at IS10(N) during flood tide. After investigation, it was concluded that those exceedance were unlikely related to this Contract. No other exceedance was recorded at monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of September 2017.

8.3.4.2        In October 2017, 2 action level exceedances of suspended solids were recorded at IS(Mf)11 and SR7 during flood tide on 20 October 2017. After investigation, it was concluded that those exceedances were unlikely to be contract related. No other exceedance was recorded at all monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report of October 2017.

8.3.4.3        In November 2017, 6 action level exceedances of suspended solids were recorded at IS(Mf)11, IS(Mf)16 and SR7 during flood tide on 3, 6, 8 and 20 November 2017. After investigation, it was concluded that those exceedances were unlikely to be contract related. No other exceedance was recorded at all monitoring stations in the reporting month. For level of exceedance, location and when exceedances were recorded, please refer to Appendix E of monthly EM&A report November 2017.

8.3.5       For dolphin monitoring, dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2013/01.

8.3.6       Environmental site inspection was carried out 14 times in the reporting quarter. Recommendations on remedial actions were given to the Contractors for the deficiencies identified during the site audits.

8.3.7       A complaint was forwarded to us by ENPO on 27 October 2017; the complainant complained that yellowish muddy water was discharged into the sea from construction site location C3 of the artificial island of the Hong Kong-Zhuhai-Macao Bridge and this has been persist for one week. After investigation, there is no adequate information to conclude the complaint is related to this Contract.

8.3.8       A complaint was forwarded to us by ENPO on 23 November 2017; the complainant complained that, on Hong Kong- Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities ¡V Artificial Island, due to watering was not provided to all areas, large amount of fugitive dust was generated, especially at the toll kiosks. After investigation, there is no adequate information to conclude the complaint is related to this Contract.

8.3.9       No notification of summons or prosecution was received in the reporting quarter.

8.3.10    Apart from the above mentioned monitoring, most of the recommended mitigation measures, as included in the EM&A programme, were implemented properly in the reporting quarter.

8.3.11    The recommended environmental mitigation measures effectively minimize the potential environmental impacts from the Contract. The EM&A programme effectively monitored the environmental impacts from the construction activities and ensure the proper implementation of mitigation measures. No particular recommendation was advised for the improvement of the programme.

8.3.12    Moreover, regular review and checking on the construction methodologies, working processes and plants were carried out to ensure the environmental impacts were kept minimal and recommended environmental mitigation measures were implemented effectively.