TABLE OF CONTENTS

 

 

 

 

 

Executive SUMMARY

Page

1

INTRODUCTION

1

1.1

Basic Project Information

1

1.2

Project Organization

1

1.3

Construction Programme

1

 

 

 

2

EM&A Requirement

1-6

2.1

Summary of EM&A Requirements

1-4

2.2

Monitoring Requirements

4

2.3

Action and Limit Levels

4-6

2.4

Event Action plans

6

 

 

 

3

Summary oF ENVIRONMENTAL MONITORING AND AUDIT

6-10

3.1

Summary of Air Quality  Monitoring Result

6-7

3.2

Summary of Noise Monitoring Results

7

3.3

Summary of Water Quality Monitoring Results

7-8

3.4

Summary of Dolphin Monitoring

8

3.5

Implementation Status of Environmental Mitigation Measures

8

3.6

Advice on the Solid and Liquid Waste Management Status

8-9

3.7

Summary of Environmental Licenses and Permits

9-10

3.8

 

Site Inspection

 

10

4

Summary of Exceedance, Complaint, notification of summons and sucessful prosecution

10-11

4.1

Summary of Exceedance of  the Environmental Quality Performance Limit

10-11

4.2

Summary of Complaints, Notification of Summons and Successful Prosecution

11

 

 

 

5

conclusion

11-12

5.1

Conclusion

11-12

 

 

 

 

 

Figures

 

Figure 1

Air Quality and Noise Monitoring Stations for HKBCF

 

Figure 2

Water Quality Monitoring Stations(construction phases)

 

Figure 3.1

Dolphin Monitoring Transect Line and Layout Map on or before 15 May 2017

 

Figure 3.1

Dolphin Monitoring Transect Line and Layout Map after 15 May 2017

 

 

 

 


 

TABLE

Table 2.1

Air Quality and Noise Monitoring Locations

Table 2.2

Water Quality Monitoring Stations (construction phases)

Table 2.3

Action and Limit Levels for 1-hour TSP

Table 2.4

Action and Limit Levels for 24-hour TSP

Table 2.5

Action and Limit Levels for Construction Noise

Table 2.6

Action and Limit Levels for Water Quality

Table 2.7

Action and Limit Levels for Chinese White Dolphin Monitoring ¡V Approach to Define Action

 

Level (AL) and Limit Level (LL)

Table 2.8

Derived Value of Action Level (AL) and Limit Level (LL) for Chinese White Dolphin Monitoring

Table 3.1

Summary of the Air Quality Action/Limit Level Exceedances

Table 3.2

Summary of the Noise Action/Limit Level Exceedances

Table 3.3

Summary of the Water Quality Action/Limit Level Exceedances

Table 3.4

Summary of Quantities of Inert C&D Materials

Table 3.5

Summary of Quantities of C&D Materials

Table 3.6

Summary of marine sediment disposed to dumping site via Contract No. HY/2013/03

Table 4.1

Summary of the Action/Limit Level Exceedances

Table 4.2

Statistical Summary of Environmental Complaints

Table 5.1

Summary of the Action/Limit Level Exceedances and Source of Exceedances

 

 

APPENDIX

Appendix A

Location of Works Areas

Appendix B

Project Organization for Environmental Works

Appendix C

Construction Programme

Appendix D

Event and Action Plan

Appendix E

Implementation Schedule for Environmental Mitigation Measures (EMIS)

Appendix F

Waste Flow Table


 

Executive SUMMARY

 

This Final Environmental Monitoring and Audit (EM&A) Report is prepared for Contract HY/2013/02 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) ¡V Infrastructure Works Stage I (Western Portion) (hereafter referred to as ¡§the Contract¡¨) for the Highways Department of Hong Kong Special Administrative Region (HKSAR). The Contract was awarded to China Harbour Engineering Co., Ltd. (hereafter referred to as ¡§the Contractor¡¨) and ETS-Testconsult Limited was appointed as the Environmental Team (ET) by the Contractor.

 

The Contract is part of Hong Kong ¡V Zhuhai ¡V Macao Bridge HKBCF which is a ¡§Designated Project¡¨, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499) and Environmental Impact Assessment (EIA) Report (Register No. AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Site preparation works of the Contract was started on 25 July 2014 and the construction works of the Contract commenced on 24 November 2014.

 

ETS-Testconsult 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 provide environmental team services to the Contract.

 

This is the Final Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries findings of the EM&A works conducted from 24 November 2014 to 31 January 2019. With reference to the memo with reference number (   ) in E771/E1/100 by Environmental Protection Department, the EM&A programme of construction phase of Contract No. HY/2013/02 was terminated since 01 February 2019.

 

Environmental Monitoring and Audit Progress

 

The 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 monitoring works for the Contract are covered by Contract No. HY/2011/03 ¡§Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road ¡V Section between Scenic Hill and HKBCF¡¨ from 24 November 2014 to 31 January 2019, Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Reclamation Works from 24 November 2014 to 31 August 2017, Contract No. HY/2013/01 ¡§Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Passenger Clearance Building¡¨ from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 HZMB HKBCF ¡V Infrastructure Works Stage II (Southern Portion) from 01 October 2018 to 31 January 2019. And the noise monitoring for the Contract are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Reclamation Works from 24 November 2014 to 31 August 2017, Contract No. HY/2013/01 ¡§Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Passenger Clearance Building¡¨ from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 HZMB HKBCF ¡V Infrastructure Works Stage II (Southern Portion) from 01 October 2018 to 31 January 2019. The impact air quality monitoring stations at AMS6, AMS7 and AMS7B, noise monitoring stations at NMS2, NMS3B and NMS3C, water quality monitoring stations were shown in Figure 2 and dolphin monitoring station shown in Figure 3 as part of EM&A programme. The following table summarized the responsibilities for each air quality and noise monitoring stations during the reporting periods.

 

Reporting Month

Water Quality Monitoring

Air Quality Monitoring

Noise Monitoring

AMS6

AMS7A

AMS7

AMS7B

NMS2

NMS3B

NMS3C

Dec-14

 

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jan-15

 

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Feb-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Mar-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Apr-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

May-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Jun-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Jul-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Aug-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Sep-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Oct-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Nov-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Dec-15

HY/2010/02

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Jan-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Feb-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Mar-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Apr-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

May-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jun-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jul-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Aug-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Sep-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Oct-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Nov-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Dec-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jan-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Feb-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Mar-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Apr-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

May-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jun-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jul-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Aug-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Sep-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Oct-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Nov-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Dec-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Jan-18

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Feb-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Mar-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Apr-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

May-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Jun-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Jul-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Aug-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

HY/2013/04

Sep-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

 

HY/2013/04

Oct-18

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

Nov-18

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

Dec-18

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

Jan-19

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

 

Breaches of Action and Limit Levels

Monitoring Results of 1-hr TSP level and 24-hr TSP level at AMS6, AMS7A, AMS7 and AMS7B shall be referred to the Contract Nos. HY/2011/03, HY/2010/02,  HY/2013/01 and HY/2013/04.

 

Monitoring Results of noise monitoring at station NMS2, NMS3B and NMS3C shall be referred to the Contract Nos. HY/2010/02, HY/2013/01 and HY/2013/04.

 

Monitoring Results of water quality monitoring at stations shown in Figure 2 shall be referred to the Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019.

 

Impact dolphin monitoring results at all transects were reported in the EM&A Report prepared for Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019.

 

In the construction phase, several exceedances were recorded in air quality, noise, water quality and dolphin monitoring. The summary of breaches of all environmental performance is shown below:


 

 

Parameter

Number of Exceedances

Action Level

Limit Level

Air Quality

1-hr TSP

0

0

24-hr TSP

0

0

Noise

Leq (30min)

0

0

Water Quality

Dissolved Oxygen

449

105

Turbidity

13

2

Suspended Solids

111

9

Dolphin

0

13

 

 

Implementation of Environmental Measures

Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures for this Contract. Potential environmental impacts due to the construction activities were monitored and reviewed. Due to the commence operation of HKBCF on 24 October 2018, environmental site inspection would only be conducted if there are any ad-hoc construction works within the construction site of Contract No. HY/2013/02 from 25 October 2018 to 31 January 2019. In this period, there were no ad-hoc construction works raised by the Contractor and thus no environmental site inspection had been conducted during the mentioned period.

 

Complaint Log

There were 19 complaint received by this Contract in relation to the environmental impact from 24 November 2014 to 31 January 2019.

 

Notifications of Summons and Successful Prosecutions

There were no notification of summon or prosecution received from 24 November 2014 to 31 January 2019.


1         INTRODUCTION

 

1.1       Basic Project Information

 

1.1.1   This Final Environmental Monitoring and Audit (EM&A) Report is prepared for Contract HY/2013/02 Hong Kong¡VZhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) ¡V Infrastructure Works Stage I (Western Portion) (hereafter referred to as ¡§the Contract¡¨) for the Highways Department of Hong Kong Special Administrative Region (HKSAR). The Contract was awarded to China Harbour Engineering Co., Ltd. (hereafter referred to as ¡§the Contractor¡¨) and ETS-Testconsult Limited was appointed as the Environmental Team (ET) by the Contractor.

 

1.1.2   The Contract is part of Hong Kong ¡V Zhuhai ¡V Macao Bridge HKBCF which is a ¡§Designated Project¡¨, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499) and 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 works of the Contract started on 25 July 2014 and the construction works of the Contract commenced on 24 November 2014. The works area of the Contract is shown in Appendix A.

 

1.1.3   This is the Final Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries findings of the EM&A works conducted during the reporting period from 24 November 2014 to 31 January 2019. With reference to the memo with reference number (   ) in E771/E1/100 by Environmental Protection Department, the EM&A programme of construction phase of Contract No. HY/2013/02 was terminated since 01 February 2019.

 

1.2       Project Organization

 

1.2.1   The project organisation structure and lines of communication with respect to the on-site environmental management structure is shown in Appendix B.

 

1.3       Works Undertaken During the Construction Period

 

1.3.1   The master construction program is enclosed in Appendix C.

 

2             EM&A Requirement

 

2.1          Summary of EM&A Requirements

 

2.1.1      The EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0). It should be noted that the air quality monitoring works for the Contract are covered by Contract No. HY/2011/03 ¡§Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road ¡V Section between Scenic Hill and HKBCF¡¨ from 24 November 2014 to 31 January 2019, Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Reclamation Works from 24 November 2014 to 31 August 2017, Contract No. HY/2013/01 ¡§Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Passenger Clearance Building¡¨ from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 HZMB HKBCF ¡V Infrastructure Works Stage II (Southern Portion) from 01 October 2018 to 31 January 2019. And the noise monitoring for the Contract are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Reclamation Works from 24 November 2014 to 31 August 2017, Contract No. HY/2013/01 ¡§Hong Kong-Zhuhai-Macao Bridge HKBCF ¡V Passenger Clearance Building¡¨ from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 HZMB HKBCF ¡V Infrastructure Works Stage II (Southern Portion) from 01 October 2018 to 31 January 2019. The impact air quality monitoring stations at AMS6, AMS7A, AMS7 and AMS7B, noise monitoring stations at NMS2, NMS3B and NMS3C, water quality monitoring stations were shown in Figure 2 and dolphin monitoring station shown in Figure 3 as part of EM&A programme. The following table summarized the responsibilities for each air quality and noise monitoring stations during the reporting periods.

 

Reporting Month

Water Quality Monitoring

Air Quality Monitoring

Noise Monitoring

AMS6

AMS7A

AMS7

AMS7B

NMS2

NMS3B

NMS3C

Dec-14

 

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jan-15

 

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Feb-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Mar-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Apr-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

May-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Jun-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Jul-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Aug-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Sep-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Oct-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Nov-15

 

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Dec-15

HY/2010/02

HY/2011/03

HY/2010/02

 

 

HY/2010/02

HY/2010/02

 

Jan-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Feb-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Mar-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Apr-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

May-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jun-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jul-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Aug-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Sep-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Oct-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Nov-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Dec-16

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jan-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Feb-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Mar-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Apr-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

May-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jun-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Jul-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Aug-17

HY/2010/02

HY/2011/03

 

HY/2010/02

 

HY/2010/02

HY/2010/02

 

Sep-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Oct-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Nov-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Dec-17

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Jan-18

HY/2013/01

HY/2011/03

 

HY/2013/01

 

HY/2013/01

HY/2013/01

 

Feb-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Mar-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Apr-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

May-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Jun-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Jul-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

 

Aug-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

HY/2013/01

HY/2013/04

Sep-18

HY/2013/01

HY/2011/03

 

 

HY/2013/01

HY/2013/01

 

HY/2013/04

Oct-18

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

Nov-18

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

Dec-18

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

Jan-19

HY/2013/04

HY/2011/03

 

 

HY/2013/04

HY/2013/04

 

HY/2013/04

 

2.1.2      A summary of air and noise monitoring locations are presented in Table 2.1. The location of air quality and noise monitoring stations are shown as in Figure 1.1 and Figure 1.2.

 

Table 2.1    Air Quality and Noise Monitoring Locations

Environmental Monitoring

Identification No.

Location Description

Air Quality

AMS6(1)

Dragonair / CNAC (Group) Building

AMS7A(1)

Chu Kong Air-Sea Union Transportation Co. Ltd.

AMS7(1)(2)

Hong Kong SkyCity Marriott Hotel

AMS7B(1)(3)

3RS Site Offices

Noise

NMS2(4)

Seaview Crescent

NMS3B((4)(5)

Site Boundary of Site Office Area at Works Area WA2

NMS3C(4)(5)(6)

Ying Tung Estate Refuse Collection Point

Remarks:

(1)    The ET of this Contract should conduct impact air quality monitoring at the AMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.

(2)    Alternative Air Quality Monitoring Stations to replace AMS7Awith effect from 01 January 2016.

(3)    Alternative Air Quality Monitoring Stations to replace AMS7with effect from 06 February 2018

(4)    ET of this Contract should conduct impact noise monitoring at the NMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.

(5)    The Limit Level for schools will be applied for this alternative monitoring location.

(6)    Alternative Noise Monitoring Station to replace NMS3B with effect from 20 August 2018

 

2.1.3      The water monitoring works for the Contract are covered by Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019. The ET of the Contract or another ET of the HZMB project is required to conduct water quality monitoring at twenty one stations (9 Impact Stations, 7 Sensitive Receiver Stations and 5 Control/Far Field Stations). Since several water quality monitoring (WQM) stations including IS10, SR5 and CS(Mf)3 will be occupied by the marine works of a designated project - Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project), alternative WQM stations named as IS10(N), SR5(N) and CS(Mf)3(N) were proposed to replace the occupied stations. The proposal for changes of the EM&A Programme 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. Besides, due to topographical conditions of SR3, SR10A and SR10B(N), the water quality monitoring (WQM) stations was proposed to be monitored at alternative WQM stations named as SR3(N), SR10A(N) and SR10B(N2). The proposal for alternation of water quality monitoring stations for HZMB HKBCF was justified by the ET Leader for Contract No. HY/2013/01 on 08 November 2017 and verified by the IEC on 13 November 2017; and submitted to EPD on 29 November 2017, and it was approved by EPD on 22 December 2017. Table 2.2 and Figure 2 shows the locations of water quality monitoring stations.

 

Table 2.2       Water Quality Monitoring Stations (construction phases)

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 [3]

Impact Station (Close to HKBCF construction site)

812577

820670

IS10(N)

Impact Station (Close to HKBCF construction site)

812942

820881

IS(Mf)11

Impact Station (Close to HKBCF construction site)

813562

820716

IS(Mf)16

Impact Station (Close to HKBCF construction site)

814328

819497

IS17

Impact Station (Close to HKBCF construction site)

814539

820391

SR3

Sensitive receivers (San Tau SSSI)

810525

816456

SR3(N)[4]

Sensitive receivers (San Tau SSSI)

810689

816591

SR4(N)

Sensitive receivers (Tai Ho)

814705

817859

SR5[3]

Sensitive receivers (Artificial Reef in NE Airport)

811489

820455

SR5(N)

Sensitive receiver (Artificial Reef in NE Airport)

812569

821475

SR6

Sensitive receivers (Sha Chau and Lung Kwu Chau Marine Park)

805837

821818

SR7

Sensitive receivers (Tai Mo Do)

814293

821431

SR10A[1]

Sensitive receivers (Ma Wan FCZ)1

823741

823495

SR10A(N)[1][4]

Sensitive receivers (Ma Wan FCZ)1

823644

823484

SR10B(N)[1]

Sensitive receivers (Ma Wan FCZ)2

823683

823187

SR10B(N2)[1][4]

Sensitive receivers (Ma Wan FCZ)2

823689

823159

CS(Mf)3 [3]

Control Station

809989

821117

CS(Mf)3(N)

Control Station

808814

822355

CS(Mf)5

Control Station

817990

821129

CS4

Control Station

810025

824004

CS6

Control Station

817028

823992

CSA[2]

Control Station

818103

823064

Note:

(1)      Additional monitoring station for Ma Wan FCZ.

(2)      Additional control monitoring station for Ma Wan FCZ

(3)      Alternative WQM Stations with effect from 15 May 2017.

(4)      Alternative WQM Stations with effect from 22 December 2017

Remarks:

The ET of this Contract should conduct impact water quality monitoring at the WQMS listed in the table as part of EM&A programme according to latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project. The ET of the Contract shall communicate and share the monitoring data to the ET(s) of other works contracts if the water quality monitoring station(s) is/are as part of EM&A programme.

 

2.1.4       The dolphin monitoring works for the Contract are covered by Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019. Figure 3 shown the layout map for the vessel-based transect lines.

 

2.2           Monitoring Requirements

 

2.2.1        The monitoring requirements, monitoring equipment, monitoring parameters, frequency and duration, monitoring methodology, monitoring schedule, meteorological information are detailed in the monthly EM&A Reports prepared for Contract No. HY/2011/03, Contract No. HY/2010/02, Contract No. HY/2013/01 and Contract No. HY/2013/04.

 

2.3           Action and Limit Levels

 

2.3.1        The Action and Limit Levels for 1-hr TSP and 24-hr TSP are provided in Table 2.3 and Table 2.4 respectively. The Action and Limit Levels of AMS7B are as same as the original levels of AMS7.

 

Table 2.3    Action and Limit Levels for 1-hour TSP

 

Monitoring Station

Action Level,mg/m3

Limit Level,mg/m3

AMS6 ¡V Dragnair / SNAC (Group) Building (HKIA)

              360

              500

AMS7A ¡V Chu Kong Air-Sea Union Transportation Co. Ltd.

370

500

AMS7 ¡V Hong Kong SkyCity Marriott Hotel

370

500

AMS7B ¡V 3RS Site Offices

370

500

 

Table 2.4    Action and Limit Levels for 24-hour TSP

Monitoring Station

Action Level, mg/m3

Limit Level,mg/m3

AMS6 ¡V Dragnair / SNAC (Group) Building (HKIA)

173

260

AMS7A ¡V Chu Kong Air-Sea Union Transportation Co. Ltd.

183

260

AMS7 ¡V Hong Kong SkyCity Marriott Hotel

183

260

AMS7B ¡V 3RS Site Offices

183

260

 

2.3.2      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 relevant EM&A reports for the Contract.

 

2.3.3      The Action and Limit Levels for construction noise are provided in Table 2.5

 

Table 2.5    Action and Limit Levels for Construction Noise

Parameter

Action Level

Limit Level

07:00 ¡V 19:00 hours on normal weekdays

When one documented complaint is received

75 dB(A)*

Notes:

If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed.

* Reduce to 70 dB(A) for schools and 65 dB(A) during school examination period.

     

2.3.4      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 relevant EM&A reports for the Contract.

 

2.3.5      The Action and Limit Levels for Water Quality are provided in Table 2.6

 

Table 2.6    Action and Limit Levels for Water Quality

Parameters

Action

Limit

DO in mg/L

(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 (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 4.2mg/L and 3.6mg/L respectively.

 

2.3.6      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 relevant EM&A reports for the Contract.

 

2.3.7      The Action and Limit Levels for Chinese White Dolphin Monitoring are provided in Table 2.7 & Table 2.8

 

Table 2.7    Action and Limit Levels for Chinese White Dolphin Monitoring ¡V Approach to Define Action Level (AL) and Limit Level (LL)

 

North Lantau Social Cluster

NEL

NWL

Action Level

(STG < 70% of baseline) &

(ANI < 70% of baseline)

(STG < 70% of baseline) &

(ANI < 70% of baseline)

Limit Level

[(STG < 40% of baseline) & (ANI < 40% of baseline)]

AND [ (STG < 40% of baseline) & (ANI < 40% of baseline)]

For North Lantau Social Cluster, action level will be trigger if either NEL or NWL fall below the criteria; limit level will be triggered if both NEL and NWL fall below the criteria.

 

Table 2.8      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)]

The ET of this Contract should conduct impact dolphin monitoring as part of EM&A programme according to latest notification from ENPO when the monitoring transect(s) is/are no longer covered by another ET of the HZMB project.

 

2.3.8      If exceedance(s) at these 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 relevant EM&A reports for the Contract.

 

2.4          Event Action Plans

 

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

 

3             Environmental Monitoring and Audit

 

3.1          Air Quality Monitoring Results

 

3.1.1       Monitoring Results of 1-hr TSP level and 24-hr TSP level at AMS6, AMS7A, AMS7 and AMS7B shall be referred to the Contract Nos. HY/2011/03, HY/2010/02,  HY/2013/01 and HY/2013/04.

 

3.1.2       Summary of Action and Limit Level exceedance of air quality monitoring during the construction period are tabulated in Table 3.1

Table 3.1   Summary of the Air Quality Action/Limit Level Exceedances

Parameter

Number of Exceedances

Action Level

Limit Level

1-hr TSP

0

0

24-hr TSP

0

0

 

3.2          Noise Monitoring Results

 

3.2.1       Monitoring Results of noise monitoring at station NMS3B shall be referred to the Contract No. HY/2010/02 from 24 November 2014 to 31 August 2017 and Contract No. HY/2013/01 from 01 September 2017 to 19 August 2018.

 

3.2.2       Monitoring Results of noise monitoring at station NMS3C shall be referred to the Contract No. HY/2013/01 from 20 August 2018 to 30 September 2019 and Contract No. HY/2013/041 from 01 October 2018 to 31 January 2019.

 

3.2.3       Summary of Action and Limit Level exceedance of noise monitoring during the construction period are tabulated in Table 3.2

 

Table 3.2   Summary of the Noise Action/Limit Level Exceedances

Parameter

Number of Exceedances

Action Level

Limit Level

Leq (30min)

0

0

 

3.3          Water Quality Monitoring Result

 

3.3.1       The monitoring results for the monitoring stations showed in Table 2.2 were reported in the monthly EM&A Reports prepared by Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019.

 

3.3.2       Summary of Action and Limit Level exceedance of water quality monitoring during the construction period are tabulated in Table 3.3

 

Table 3.3   Summary of the Water Quality Action/Limit Level Exceedances

Sampling Date

No. of Exceedances

DO

Turbidity

SS

Action

Limit

Action

Limit

Action

Limit

2015

0

0

0

0

1

0

2016

0

0

0

1

20

1

2017

144

34

7

1

53

6

2018

305

71

6

0

38

1

2019

0

0

0

0

0

0

Total:

449

105

13

2

112

8

 

3.3.2.     Since the removal of temporary loading and unloading point by Contract No. HY/2013/02, which involved marine work, was completed on 10 September 2017 and the area was handed back to Reclamation Contractor with Contract No. HY/2010/02 on 11 September 2017 for subsequent seawall construction as confirmed by RSS, there was no marine works or barge of this Contract worked at HKBCF reclamation site near the sea area or area near the monitoring station under Contract No. HY/2013/02 from October 2017 to January 2019. Hence, specific investigation shall be referred to other ET¡¦s report(s) under the HZMB Projects in which the respective contract(s) with remaining marine works on-going for the exceedances recorded in water quality monitoring during the construction period.

 

3.4          Dolphin monitoring Result

 

3.4.1      Summary of dolphin monitoring results at all transects were prepared by Contract Nos. HY/2010/02, HY/2013/01 and HY/2013/04. The monitoring results and Action or Limit Level Non-compliance were reported in the quarterly EM&A Reports by the ET of Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019.

 

3.5          Implementation of Environmental Measures

 

3.5.3       The environmental mitigation measures that recommended in the Environmental Monitoring and Audit Manual covered the issues of dust, noise, water quality, dolphin, waste management and landscaping and visual.

 

3.5.4      The implementation status of Regular Marine Travel Route Plan (RMTRP) was checked by ET. Training material of Regular Marine Travel Route Plan was prepared and given to relevant staff. Those records were kept properly. Since the marine delivery of precast segments was commenced and the RMTRP training was provided for the Captain on 21 July 2016, the Captain was reminded to use regular travel routes in order to minimize the chance of vessel collision and the routes would not go through the dolphin hotspot in Brothers Islands.

 

3.5.5.     The tool box training of dolphin was carried out in December 2015. According to the action plan and communication flow chart of dolphin instruction, if any dolphin intruded BCF perimeter silt curtain, ETL should be informed. There was no notification received on any dolphin intrusion during the construction period.

 

3.5.6.     The Contractor had been implementing the required environmental mitigation measures according to the Environmental Monitoring and Audit Manual. Environmental mitigation measures implemented during the construction period are summarized in Appendix E.

 

3.6          Advice on the Solid and Liquid Waste Management Status

 

3.6.1       The Contractor registered as a chemical waste producer for the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting. The quantities of waste for disposal in this reporting period are summarized in Table 3.4 and Table 3.5 and yearly summary waste flow table is shown in Appendix F.

 

Table 3.4     Summary of Quantities of Inert C&D Materials

Type of Waste

Quantity

2014

2015

2016

2017

2018

2019

Hard Rock and Large Broken Concrete (Inert) (m3)

0

0

0

0

0

0

Reused in this Contract (Inert) (m3)

0

0

0

0

0

0

Reused in other Projects (Inert) (m3)

0

0

0

0

18737

0

Disposed as Public Fill (Inert) (m3)

0

39.0

394.0

29099.3

6492

111

Imported Fill (Inert) (m3)

0

182.5

36788.0

84895.2

59439

0

 

Table 3.5     Summary of Quantities of C&D Materials

Type of Waste

Quantity

2014

2015

2016

2017

2018

2019

Recycled Metal (kg)

0

5

105636.0

2168550

0

0

Recycled Paper / Cardboard Packing (kg)

492

289.5

838.5

1215.0

2480

0

Recycled Plastic (kg)

0

511.4

17933.2

13298.5

2046

0

Chemical Wastes (kg)

0

0

0

0

0

0

General Refuses (m3)

0

162.5

643.5

6019.0

3538

78

 

3.7          Disposal of Marine Sediment

 

3.7.1       For the marine sediment disposal, after the acceptance of the review of the approved Sediment Quality Report (SQR) for this Project under EPD letter dated 19 August 2015, an approval to dispose the marine sediment extracted from bored piling for this Project was then approved under memo from Secretary, Marine Fill Committee of CEDD dated 20 August 2015 for the disposal of marine sediment extracted from bored piling works. The disposal sites allocated to this Project are the Mud Pit CMP2 of the Confined Marine Sediment Disposal Facility to the South of The Brothers (or at the East of Sha Chau). As advised by CEDD in the memo dated 19 February 2016, from 00:00 on 22 March 2016 onward, the disposal space at CMP2 of the South of The Brothers is closed and all disposal of contaminated sediment is to be carried out at CMP Vd to the East of Sha Chau (ESC). As a practical means, the disposal operation is managed by one contractor who is also responsible for applying dumping permit and its subsequent extension applications from EPD. Contract No. HY/2013/03 has been assigned to coordinate and arrange for disposal of extracted marine sediment from Contract No. HY/2013/02, HY/2013/03 and HY/2013/04.

 

3.7.2       For the dumping arrangement, the barge for disposal of marine sediment will moor at the temporary loading and unloading at the east shore of the HKBCF Island, which has been being used by contractor Contract No. HY/2010/02 for reclamation activities. In terms of safety consideration and to avoid mixing of sediment between contracts, each dumping date will be allocated to one Contract. The quantity of marine sediment disposed on each date is from one Contract.

 

3.7.3       During dumping, HY/2013/02 is responsible for transporting the marine sediment from his site area to the barge by Land transportation. The estimated quantity of marine sediment in each truck is confirmed by Resident Site Staff of each Contract. The trip tickets for transportation and disposal of marine sediment are collected and checked. Contract No. HY/2013/03 as the dumping permit holder is responsible for reporting to EPD the quantity disposed of as the condition stipulated in the dumping permit.

 

3.7.4       The Summary of Marine sediment disposed to dumping site was provided in Appendix F and Table 3.6.

 

Table 3.6  Summary of marine sediment disposed to dumping site via Contract No. HY/2013/03

Year

Quantity disposed (m3)

2014

0

2015

0

2016

18520

2017

2144

2018

0

2019

0

Total =

20664

 

3.8          Site Inspection

 

3.8.1      According to the Environmental Monitoring and Audit Manual, regular environmental site inspections was carried out by ET joined with RE and the Contractor to confirm the environmental performance.

 

3.8.2      During the construction period, 208 events of joint site inspections were undertaken by the RE, EO and ET to evaluate the site environmental performance. No adverse environmental impacts were registered, indicating that mitigation measures implemented were effective and sufficient for the construction activities undertaken. Minor deficiencies found during site inspections and audits were rectified by specified deadlines. The observations of each site inspection can be found in their relevant EM&A monthly reports.

 

3.8.3      As confirmed by RSS on 16 January 2018, the landscape construction works including planting (Shrubs & Grass), installation of irrigation pipe and soiling (Sub & Top soil) for Contract No. HY/2013/02 were commended on 04 November 2017. The landscape inspections were conducted on a bi-weekly basis during the weekly environmental site inspection.

 

3.8.4      During the site inspections, there was no conflict occurred regarding to the Landscape & Visual mitigation measures stated in Contract Specific EM&A Manual. The work site was found to be confined within site boundaries and grass-hydroseed was provided for bare soil surface and stock pile areas. Landscape & Visual mitigate measures during construction would be checked to ensure compliance with the intended aims of the measures.

 

4             Summary of exceedance, complaint, notification of summons and successful prosecution

 

4.1          Summary of Exceedance of the Environmental Quality Performance Limit

 

4.1.1      In the construction phase, several exceedances were recorded in air quality, noise and water quality monitoring. The summary of breaches of all environmental performance is shown below:

 

Table 4.1   Summary of the Action/Limit Level Exceedances

Parameter

Number of Exceedances

Action Level

Limit Level

Air Quality

1-hr TSP

0

0

24-hr TSP

0

0

Noise

Leq (30min)

0

0

Water Quality

Dissolved Oxygen

449

105

Turbidity

13

2

Suspended Solids

111

9

Dolphin

0

13

 

4.1.2      Impact dolphin monitoring results at all transects were reported in the EM&A Report prepared by Contract Nos. HY/2010/02, HY/2013/01 and HY/2013/04. The monitoring results and Action or Limit Level Non-compliance were reported in the quarterly EM&A Reports by the ET of Contract No. HY/2010/02 from 01 December 2015 to 31 August 2017, Contract No. HY/2013/01 from 01 September 2017 to 30 September 2018 and Contract No. HY/2013/04 from 01 October 2018 to 31 January 2019.

 

4.2          Summary of Complaints, Notification of Summons and Successful Prosecution

 

4.2.1      There were 19 complaints received by this Contract during the construction period.

 

4.2.2      The statistical summary table of environmental complaint is presented in Table 4.2.

 

Table 4.2   Statistical Summary of Environmental Complaints Received by This Contract

Reporting Period

Environmental Complaint

Frequency

Cumulative

2014

0

0

2015

4

4

2016

5

9

2017

7

16

2018

3

19

2019

0

0

 

4.2.3       The detailed summary and investigations of the complaints can be found in their respective monthly EM&A reports.

 

4.2.4       There were no notifications of summons or prosecutions received during the construction period.

 

5             conclusion

 

5.1          Conclusion

 

5.1.1      Construction works of Contract No. HY/2013/02 were terminated on 28 March 2018, and the EM&A programme for the construction phase were terminated since 01 February 2019.

 

5.1.2      The monitoring results demonstrated that the monitoring environmental parameters generally fluctuated consistently below the corresponding Action and Limit Levels. This implies that the implemented EM&A program for air quality, construction noise, and water quality was effective in generating data of necessary statistical power to reflect the ambient environmental trends of the area.

 

Table 5.1   Summary of the Action/Limit Level Exceedances and Source of Exceedances

 

Parameter

Number of Exceedances

Source of Exceedances

Action Level

Limit Level

Air Quality

1-hr TSP

0

0

Not related to the Works

24-hr TSP

0

0

Noise

Leq (30min)

0

0

Water Quality

Dissolved Oxygen

449

105

Turbidity

13

2

Suspended Solids

111

9

Dolphin

0

13

 

5.1.3      As shown in Table 5.1, no works-related exceedances were registered during the construction period of this Contract, indicating no adverse environmental impacts of air quality, construction noise, and water quality were generated from the construction activities under the Project. This also implies that the implemented environmental mitigation measures were effective to alleviate the adverse environmental impacts generated from the construction works under the Project.

 

5.1.4      During the construction period, there were no notifications of summons and successful prosecutions. However, there were 19 complaints received during the construction period. Investigations concluded that the complaints were not due to works under the Project, and no mitigation measures were advised.

 

5.1.5      The liquid and solid waste generated from the construction period under this Contract was satisfactorily managed in accordance with the liquid and solid waste regulations or guidelines as well as the Contractor¡¦s Environmental Management Plan and the associated Waste Management Plan approved by the Engineer prior to implementation.

 

5.1.6      The environmental protection performance of the Project was in general satisfactory.

 

 

 

 

- END OF REPORT -