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TABLE OF CONTENTS

Executive SUMMARY

 

 

1

INTRODUCTION

1-2

 

1.1

Basic Project Information

1

1.2

Project Organization

2

1.3

Construction Programme

2

1.4

Construction Works Undertaken During the Reporting Period

2

 

 

 

2

AIR QUALITY MONITORING

3

2.1

Monitoring Locations

3

2.2

Monitoring Requirements

3

2.3

Monitoring Results

3-4

 

 

 

3

NOISE MONITORING

4

3.1

Monitoring Locations

4

3.2

Monitoring Requirements

4

3.3

Monitoring Results

4

 

 

 

4

WATER QUALITY MONITORING

5-7

4.1

Monitoring Locations

5

4.2

Monitoring Requirements

5-6

4.3

Monitoring Results

6-7

 

 

 

5

DOLPHIN MONITORING

7

5.1

Monitoring Locations

7

5.2

Monitoring Requirements

7

5.3

Monitoring Results

7

 

 

 

6

ENVIRONMENTAL SITE INSPECTION AND AUDIT

8-11

6.1

Site Inspection

8

6.2

Advice on the Solid and Liquid Waste Management Status

8-9

6.3

Environmental Licenses and Permits

9

6.4

Implementation Status of Environmental Mitigation Measures

9

6.5

Summary of Exceedance of the Environmental Quality Performance Limit

9-10

6.6

Summary of Complaints, Notification of Summons and Successful Prosecution

10

 

 

 

7

FUTURE KEY ISSUES

10

7.1

Construction Programme for the Coming Months

10

7.2

Environmental Site Inspection Schedule for the Coming Month

10

 

 

 

8

CONCLUSION

10-11

8.1

Conclusions

10-11

 


 

 

Figures

 

Figure 1

Air Quality and Noise Monitoring Stations for HKBCF

 

Figure 2

Water Quality Monitoring Stations (construction phases)

 

Figure 3

Dolphin Monitoring Transect Line and Layout Map

 

 

 

 

 

 

 

 

 

 

TABLE

 

 

Table 1.1

Contact Information of Key Personnel

 

Table 2.1

Air Quality Monitoring Locations

 

Table 2.2

Action and Limit Levels for 1-hour TSP

 

Table 2.3

Action and Limit Levels for 24-hour TSP

 

Table 3.1

Construction Noise Monitoring Locations

 

Table 3.2

Action and Limit Levels for Construction Noise

 

Table 4.1

Water Quality Monitoring Stations (construction phases)

 

Table 4.2

Action and Limit Levels for Water Quality

 

Table 4.3

Number of Exceedance for Water Quality Monitoring

 

Table 5.1a

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

 

Table 5.1b

Action and Limit Levels for Chinese White Dolphin Monitoring -

 

 

 

 

 

 

 

 

 

 

APPENDICES

 

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

Monthly Summery of Waste Flow Table & Monthly Summery of Marine Sediment

 

Appendix F

Environmental Licenses and Permits

 

Appendix G

Implementation Schedule for Environmental Mitigation Measures (EMIS)

 

Appendix H

Statistics on Environmental Complaints, Notification of Summons and Successful Prosecutions

 

Appendix I

Environmental Site Inspection Schedule

 

Appendix J

Investigation Reports on Action Level or Limit Level Non-compliance

 

Appendix K

Complaint Investigation Report

 


 

Executive SUMMARY

 

This Monthly 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) – 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–Zhuhai–Macao Bridge HKBCF which is a “Designated Project”, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499) and Environmental Impact Assessment (EIA) Report (Register No. AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Site preparation works of the Contract 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 Thirty-sixth Monthly Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries findings of the EM&A works conducted during the reporting period from 01 November to 30 November 2017.

 

Site Activities

 

As informed by the Contractor, site activities were carried out in this reporting month:

 

l   Road and Bituminous works;

l   Storm, sewer drainage and water main construction;

l   Slop and earth works;

l   Construction of signs gantries, cable trench and ducting

l   Landscaping work

 

Environmental Monitoring and Audit Progress

 

The monthly EM&A programme was undertaken in accordance with the Updated EM&A Manual for HKBCF (Version 1.0). It should be noted that the air quality and noise monitoring works for the Contract are covered by Contract No. HY/2013/01 “Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building” and Contract No. HY/2011/03 “Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF”. The ET of the Contract or another ET of the HZMB project is required to conduct impact air quality monitoring at AMS6 and AMS7, noise monitoring at NMS2 and NMS3B, water quality monitoring show in Figure 2 and dolphin monitoring show in Figure 3 as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2013/01 and HY/2011/03. However, this is subject to ENPO’s final decision on which ET should carry out the monitoring works at these stations. The dates of site inspection during the reporting period are listed below:

 

Environmental Site Inspection:                02, 09, 16, 23 & 30 November 2017

 

Breaches of Action and Limit Levels

 

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

 

There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

There was an Action Level exceedance of 24-hr TSP level recorded at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

There was no Action and Limit Level exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

During November 2017, there were 15 action level exceedances and 4 limit level exceedances of suspended solids. The following table summarized the number of exceedance on each sampling data.

Sampling Date

No. of Exceedances

DO

Turbidity

SS

Action

Limit

Action

Limit

Action

Limit

03/11/2017

0

0

0

0

3

1

06/11/2017

0

0

0

0

5

0

08/11/2017

0

0

0

0

2

2

13/11/2017

0

0

0

0

1

0

15/11/2017

0

0

0

0

1

0

20/11/2017

0

0

0

0

1

0

22/11/2017

0

0

0

0

1

1

24/11/2017

0

0

0

0

1

0

Total:

0

0

0

0

15

4

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 during November 2017. Hence, no investigation report was provided for all exceedances recorded under Contract No. HY/2013/02 in November 2017. There was no Action and Limit Level exceedance recorded on other monitoring date at the monitoring stations showed at Table 4.1 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

Complaint Log

During November 2017, there was a complaint received by Environmental Protection Department on 23 November 2017 and referred to the ENPO. Then the ENPO forwarded the complaint by email to the R.E. (AECOM), the Contractor (China Harbour) and the ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02 17:58 on 23 November 2017. The complaint detail was "港珠澳大橋人工島地盤,由於不是每處都灑水,引致大量塵埃,近收費亭最嚴重"

 

After received the details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 have performed a related follow-up inspection on 24 November 2017 to investigate this event. The inspection was concentrated to check if regular watering launched inside the construction site by the Contractor of Contract No. HY/2013/02.

 

After checked with the Contractor of Contract No. HY/2013/02 during 15:00 to 16:00 on 24 November 2017, the worksite was wetted with water (see attached photo and location plan of watering photo) near收費亭 and spraying with water by watering cars were observed on the worksite during the follow-up inspection. Besides, 收費亭was not managed by Contract No. HY/2013/02. Hence, the complaint was found non-related to Contract No. HY/2013/02. The complaint investigation report (Log No. 016) was provided in Appendix K.

 

Notifications of Summons and Successful Prosecutions

 

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

 

Reporting Change

There were no reporting changes during the reporting period.

 

Future Key Issues

 

The future key issues to be undertaken in the upcoming month are as follows:

 

l   Road and Bituminous works

l   Storm, sewer drainage and water main construction;

l   cable trench and ducting

l   Landscaping work

 

 


1.            INTRODUCTION

 

1.1.         Basic Project Information

 

1.1.1.     This Monthly 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) – 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–Zhuhai–Macao Bridge HKBCF which is a “Designated Project”, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499) and Environmental Impact Assessment (EIA) Report (Register No. AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Site preparation works of the Contract started on 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.      The proposed works under this Contract comprise the following:

 

l   Construction of the viaducts and roads at the western portion of Hong Kong Boundary Crossing Facilities (HKBCF) mainly for connection with the Hong KongZhuhaiMacao Bridge (HZMB), Hong Kong Link Road (HKLR), Hong Kong International Airport (HKIA) and the Tuen Mun-Chek Lap Kok Link (TM-CLKL);

     

l   Construction of the road modification at the SkyCity Interchange at Airport Island;

     

l   Construction of associated street lighting, street furniture, road marking, road signage, drainage, sewerage, fresh water and flushing water supply, irrigation, landscape, electrical and mechanical (E&M), utilities and services works;

     

l   Provisioning of civil engineering works and power supply installation for the Traffic Control and Surveillance System TCSS;

     

l   Other works in accordance with the Contract.

 

1.1.4.     This is the Thirty-sixth Monthly Environmental Monitoring and Audit (EM&A) Report for the Contract which summaries the audit findings of the EM&A programme during the reporting period from 01 November to 30 November 2017.


 

1.2.         Project Organization

 

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

 

Table 1.1     Contact Information of Key Personnel

Party

Position

Name of Key Staff

Tel. No.

Fax No.

Engineer or Engineer’s Representative

 (AECOM Asia Co. Ltd.)

Resident Engineer

Mr. Winston Wong

6330 8293

3152 5116

Environmental Project Office / Independent Environmental Checker

(Ramboll Environ Hong Kong Limited)

Environmental Project Office Leader

Mr. Y. H. Hui

3465 2888

3465 2899

Independent Environmental Checker

Mr. Raymond Dai

3465 2888

3465 2899

Environmental Site Supervisor

Mr. Ray Yan

5181 8165

3465 2899

Contractor

(China Harbour Engineering Co., Ltd.)

Environmental Officer

Mr. Richard Ng

5977 0593

3915 0300

Environmental Officer

Mr. Paper Chan

6486 8967

3915 0300

Environmental Supervisor

Mr. Endy Tse

5512 2662

3915 0300

Environmental Team

 (ETS-Testconsult Ltd.)

Environmental Team Leader

Mr. C. L. Lau

2946 7791

2695 3944

 

1.3.         Construction Programme

 

1.3.1.     A copy of the Contractor’s construction programme is provided in Appendix C.

 

1.4.         Construction Works Undertaken During the Reporting Period

 

1.4.1.     A summary of the construction activities undertaken during this reporting period is shown below:

 

 

l     Road and Bituminous works;

l     Storm, sewer drainage and water main construction;

l     Retaining wall, slop and earth works;

l     Construction of signs gantries, cable trench and ducting

l     Landscaping work

 


2.            AIR QUALITY MONITORING

 

2.1.         Monitoring Locations

2.1.1.     The air quality monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building and Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF. The ET of the Contract or another ET of the HZMB project is required to conduct impact air quality monitoring at AMS6 and AMS7 as part of EM&A programme if these air quality monitoring stations are no longer covered under Contract No. HY/2013/01 and HY/2011/03. Table 2.1 and Figure 1 shows the locations of air monitoring stations.

 

Table 2.1     Air Quality Monitoring Locations

 

Identification No.

Location Description

AMS6(1)

Dragonair / CNAC (Group) Building

AMS7(1) (2)

Hong Kong SkyCity Marriott Hotel

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)         The air quality monitoring location AMS7A was relocated back to the original monitoring location AMS7

of the updated EM&A Manual started from January 2016.

 

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 Nos. HY/2013/01 and HY/2011/03.

 

2.2.2.     The Action and Limit Levels for 1-hr TSP and 24-hr TSP are provided in Table 2.2 and Table 2.3 respectively. The Action and Limit Levels of AMS7 are as same as its original levels and AMS7A.

 

 Table 2.2     Action and Limit Levels for 1-hour TSP

 

Monitoring Station

Action Level,mg/m3

Limit Level,mg/m3

AMS6 – Dragnair / SNAC (Group) Building (HKIA)

360

500

AMS7 – Hong Kong SkyCity Marriott Hotel

370

500

 

  Table 2.3     Action and Limit Levels for 24-hour TSP

Monitoring Station

Action Level,mg/m3

Limit Level,mg/m3

AMS6 – Dragnair / SNAC (Group) Building (HKIA)

173

260

AMS7 – Hong Kong SkyCity Marriott Hotel

183

260

 

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

 

2.2.4.     If exceedance(s) at these stations is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the monthly EM&A Report.

 

2.3.         Monitoring Results

 

2.3.1.     The monitoring results for AMS6 and AMS7 are reported in the monthly EM&A Reports prepared for Contract Nos. HY/2011/03 and HY/2013/01 respectively.

 

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

 

2.3.3.     There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

2.3.4.     There was an Action Level exceedance of 24-hr TSP level recorded at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period. The Investigation Reports No. 023 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J.

 

2.3.5.     Although the exceedances were not relevant to this Contract, the Contractor was reminded to provide appropriate air quality mitigation measures, such as spray the worksites with water at least 8 times/day, cover the dusty materials with impervious sheeting.

 

3.            NOISE MONITORING

 

3.1.         Monitoring Locations

3.1.1.     The noise monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building. The ET of the Contract or another ET of the HZMB project is required to conduct noise monitoring at NMS2 and NMS3B as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2013/01. Table 3.1 and Figure 1 shows the locations of noise monitoring stations.

 

 Table 3.1     Construction Noise Monitoring Locations

 

Identification No.

Location Description

NMS2(1)

Sea View Crescent

NMS3B(1) (2)

Site Boundary of Site Office Area at Works Area WA2

Remarks:

 

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

 

(2)        The Action and Limit Levels for schools will be applied for this alternative monitoring location.

 

 

3.2.         Monitoring Requirements

 

3.2.1.     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/2013/01.

 

3.2.2.     The Action and Limit Levels for construction noise are provided in Table 3.2

 

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

 

Table 3.2     Action and Limit Levels for Construction Noise

Parameter

Action Level

Limit Level

07:00 – 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.

 

3.2.4.     If exceedance(s) at these stations 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.

 

3.3.         Monitoring Results

 

3.3.1       The monitoring results for NMS2 and NMS3B are reported in the monthly EM&A Reports prepared for Contract No. HY/2013/01. There was no exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period.


 

4.            WATER QUALITY MONITORING

 

4.1.         Monitoring Locations

  

The water monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building. 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). Table 4.1 and Figure 2 shows the locations of water quality monitoring stations.

 

Table 4.1     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(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

SR4(N)

Sensitive receivers (Tai Ho)

814705

817859

SR5(N)

Sensitive receiver (Artificial Reef in NE Airport)

812569

821475

SR6

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

805837

821818

SR7

Sensitive receivers (Tai Mo Do)

814293

821431

SR10A [1]

Sensitive receivers (Ma Wan FCZ)1

823741

823495

SR10B(N)[1]

Sensitive receivers (Ma Wan FCZ)2

823683

823187

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

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.

 

4.2          Monitoring Requirements

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/2013/01.

 

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

 

4.2.2       The Action and Limit Levels for Water Quality are provided in Table 4.2

 

 

Table 4.2     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.

 

4.2.3       If exceedance(s) at these stations is/are recorded by the ET of the Contract or referred by the other ET under the HZMB project to the Contract, the ET of the Contract will carry out an investigation and findings will be reported in the monthly EM&A Report.

                                                                                                                              

4.3          Monitoring Result

 

4.3.1       The monitoring results for the monitoring stations showed in Table 4.1 are reported in the monthly EM&A Report prepared for Contract No. HY/2013/01. During November 2017, there were 15 action level exceedances and 4 limit level exceedances of suspended solid. The following table summarized the number of exceedance on each sampling data.

 

Table 4.3        Number of Exceedances for Water Quality Monitoring

Sampling Date

No. of Exceedances

DO

Turbidity

SS

Action

Limit

Action

Limit

Action

Limit

03/11/2017

0

0

0

0

3

1

06/11/2017

0

0

0

0

5

0

08/11/2017

0

0

0

0

2

2

13/11/2017

0

0

0

0

1

0

15/11/2017

0

0

0

0

1

0

20/11/2017

0

0

0

0

1

0

22/11/2017

0

0

0

0

1

1

24/11/2017

0

0

0

0

1

0

Total:

0

0

0

0

15

4

 

4.3.2       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 during November 2017. Hence, no investigation report was provided for all exceedances recorded under Contract No. HY/2013/02 in November 2017.There was no Action and Limit Level exceedance recorded on other monitoring date at the monitoring stations showed at Table 4.1 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

4.3.3       Although the exceedances were not relevant to this Contract, the Contractor was reminded to provide appropriate water pollution mitigation measures, such as ensure all construction activities that would deteriorate the water quality was collected by sedimentation tanks or package treatment systems for proper treatment prior to disposal.

 

5.            DOLPHIN MONITORING

 

5.1.         Monitoring Locations

The dolphin monitoring works for the Contract are covered by Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge HKBCF – Passenger Clearance Building. The ET of the Contract or another ET of the HZMB project is required to conduct dolphin monitoring at 24 transects as part of EM&A programme if these transects are no longer covered under Contract No. HY/2013/01. The dolphin monitoring should adopt line-transect vessel survey method. The survey follows pre-set and fixed transect lines in the two areas defined by AFCD as: Northeast Lantau survey area; and Northwest Lantau survey area. Figure 3 shows the co-ordinates for the transect lines and layout map.

 

5.2.         Monitoring Requirements

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/2013/01.

 

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

 

5.2.2.     The Action and Limit Levels for Chinese White Dolphin Monitoring are provided in Table 5.1a & Table 5.1b

 

Table 5.1a     Action and Limit Levels for Chinese White Dolphin Monitoring – Approach to

                   Define Action Level (AL) and Limit Level (LL)

 

North Lantau Social Cluster

NEL

NWL

Action Level

(STG < 70% of baseline) & (ANI < 70% of baseline)

(STG < 70% of baseline) &

(ANI < 70% of baseline)

Limit Level

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

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

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 5.1b     Derived Value of Action Level (AL) and Limit Level (LL) for Chinese White

                   Dolphin Monitoring

 

North Lantau Social Cluster

NEL

NWL

Action Level

(STG < 4.2) & (ANI < 15.5)

(STG < 6.9) & (ANI < 31.3)

Limit Level

[(STG < 2.4) & (ANI < 8.9)] AND [(STG < 3.9) & (ANI < 17.9)]

 

5.2.3.     If exceedance(s) at these transects 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.

 

5.3          Monitoring Result

The dolphin survey results for all transects are reported in the monthly EM&A Reports prepared for Contract No. HY/2013/01.


6.            ENVIRONMENTAL SITE INSPECTION AND AUDIT

 

6.1.         Site Inspection

 

6.1.1.     Site Inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control mitigation measures for the project. During the reporting period, site inspections were carried out on 02, 09, 16, 23 & 30 November 2017.

 

6.1.2.     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 16 and 30 November 2017 on a bi-weekly basis during the weekly environmental site inspection. The weekly site inspection checklists including the landscape inspection items would be submitted to IEC for checking within the reporting period.

 

6.1.3.     During the site inspections on November 2017, 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.

 

6.1.4.     Particular observations during the site inspections are described below:

 

26 October 2017

(a)        Improper disposal of general refuse was observed at Portion C. General refuse was collected at Portion C. The observation was closed on 02 November 2017.

(b)        One roller was not switched off while not in use at Portion C. Training was provided to the operator of the roller for switching off the plant while not in use at Portion C. The observation was closed on 02 November 2017.

(c)        Stagnant water was observed in a trench at Portion D. Biolavicide was applied into the trench at Portion D. The observation was closed on 02 November 2017.

 

02 November 2017

(a)        Mobile generator without drip tray was observed at Portion A. Drip tray was provided for the mobile generator at Portion A. The observation was closed on 09 November 2017.

(b)        Oil containers without drip tray were observed at Portion A. Oil containers were removed at Portion A. The observation was closed on 09 November 2017.

(c)        Overflowed general refuse container was observed at Portion A. General refuse was collected at Portion A. The observation was closed on 09 November 2017.

 

09    November 2017

(a)          A generator and chemical containers without drip tray were observed at Portion C. Drip tray was provided for the generator and chemical containers were removed at Portion C. The observation was closed on 16 November 2017.

 

16 November 2017

(a)        Improper discard of general refuse was observed at Portion D. General refuse was collected at Portion D. The observation was closed on 23 November 2017.

(b)        Improper storage of chemical container was observed at Portion D. Chemical container was removed at Portion D. The observation was closed on 23 November 2017.

 

23 November 2017

(a)        Overflowed general refuse container was observed at Portion D. General refuse was collected at Portion D. The observation was closed on 30 November 2017.

(b)        Missing of NRMM label was observed on two excavators at Portion C. NRMM labels were provided on two excavators at Portion C. The observation was closed on 30 November 2017.

(c)        Mobile generator without drip tray was observed at Portion C. Drip tray was provided at Portion C. The observation was closed on 30 November 2017.

 

30 November 2017

(a)        Stagnant water was observed at Portion D. Follow-actions for outstanding observation will be inspected during the next site inspection.

(b)        Oil container without drip tray were observed at Portion C and Portion D. Follow-actions for outstanding observation will be inspected during the next site inspection.

(c)        Improper disposal of general refuse was observed at Portion D. Follow-actions for outstanding observation will be inspected during the next site inspection.

(d)        Mobile generator without drip tray was observed at Portion D. Follow-actions for outstanding observation will be inspected during the next site inspection.

 

6.2.         Advice on the Solid and Liquid Waste Management Status

 

6.2.1.     The Contractor registered as a chemical waste producer for the Contract. Sufficient numbers of receptacles were available for general refuse collection and sorting.

 

6.2.2.     There was no excavated marine sediment generated in this reporting period. Since the disposal of excavated marine sediments has been completed with the last batch disposal on 30 August 2017 as confirmed by RSS, no excavated marine sediment was still remained and stored on site awaiting disposal during this reporting period under Contract No. HY/2013/02.

 

6.3.         Environmental Licenses and Permits

 

6.3.1.     The valid environmental licenses and permits during the reporting period are summarized in Appendix F.

 

6.4.         Implementation Status of Environmental Mitigation Measures

 

6.4.1.     In response to the site audit findings, the Contractor carried out corrective actions.

 

6.4.2.     The Contractor waters 8 times per day on all exposed soil within the project site and associated works areas when construction activities are being undertaken.

 

6.4.3.     The Contractor was reminded to resolve the potential conflicts between the proposed landscape measures and any other works of the project. The landscape works with mitigation code G1, G2 and G4 were mainly conducted in Portion D under construction stage. The other mitigation measures with mitigation code G5, G6, G7 & G9 were not yet started. The implementation status of Landscape and Visual Mitigation Measures is presented in Appendix G.

 

6.4.4.     The Contractor was reminded to provide well-maintained plant operated on-site and plant served regularly;

 

6.4.5.     The Contractor was reminded to switch off vehicles and equipment while not in use;

 

6.4.6.     The Contractor was reminded to schedule the construction works to minimize noise nuisance etc.

 

6.4.7.     A summary of the implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix G. Most of the necessary mitigation measures were implemented properly.

 

6.5.         Summary of Exceedance of the Environmental Quality Performance Limit

 

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

 

6.5.2.     There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

6.5.3.     There was an Action Level exceedance of 24-hr TSP level recorded at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period. The Investigation Reports No. 023 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J.

6.5.4.     There was no Action and Limit Level exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

6.5.5.     The monitoring results for the monitoring stations showed in Table 4.1 are reported in the monthly EM&A Report prepared for Contract No. HY/2013/01. During November 2017, there were 15 action level exceedances and 4 limit level exceedances of suspended solid. Table 4.3 summarized the number of exceedance on each sampling data.

 

6.5.6.     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 during November 2017. Hence, no investigation report was provided for all exceedances recorded under Contract No. HY/2013/02 in November 2017. There was no Action and Limit Level exceedance recorded on other monitoring date at the monitoring stations showed at Table 4.1 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

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

 

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

 

6.6.1.     During November 2017, there was a complaint received by Environmental Protection Department on 23 November 2017 and referred to the ENPO. Then the ENPO forwarded the complaint by email to the R.E. (AECOM), the Contractor (China Harbour) and the ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02 17:58 on 23 November 2017. The complaint detail was "港珠澳大橋人工島地盤,由於不是每處都灑水,引致大量塵埃,近收費亭最嚴重"

 

After received the details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 have performed a related follow-up inspection on 24 November 2017 to investigate this event. The inspection was concentrated to check if regular watering launched inside the construction site by the Contractor of Contract No. HY/2013/02.

 

After checked with the Contractor of Contract No. HY/2013/02 during 15:00 to 16:00 on 24 November 2017, the worksite was wetted with water (see attached photo and location plan of watering photo) near收費亭 and spraying with water by watering cars were observed on the worksite during the follow-up inspection. Besides, 收費亭was not managed by Contract No. HY/2013/02. Hence, the complaint was found non-related to Contract No. HY/2013/02. The complaint investigation report (Log No. 016) was provided in Appendix K.

 

6.6.2.     There were no notifications of summons or prosecutions received during the reporting period.

 

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

 

7.            FUTURE KEY ISSUES

 

7.1          Construction Programme for the Coming Months

 

7.1.1      As informed by the Contractor, the major construction activities for December 2017 are summarized:

l   Road and Bituminous works

l   Storm, sewer drainage and water main construction;

l   cable trench and ducting

l   Landscaping work

 

7.2          Environmental Site Inspection Schedule for the Coming Month

7.2.1      The tentative schedule for weekly site inspections for December 2017 is provided in Appendix I.

8.            CONCLUSION

 

8.1          Conclusions

 

8.1.1      The site preparation work of the Contract was started on 25 July 2014 and the construction works of the Contract commenced on 24 November 2014.

 

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

 

8.1.3      There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at station AMS7 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

8.1.4       There was an Action Level exceedance of 24-hr TSP level recorded at station AMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period. The Investigation Reports No. 023 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J.

 

8.1.5      There was no Action and Limit Level exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

8.1.6      The monitoring results for the monitoring stations showed in Table 4.1 are reported in the monthly EM&A Report prepared for Contract No. HY/2013/01. During October 2017, there were 15 action level exceedances and 4 limit level exceedances of suspended solid. Table 4.3 summarized the number of exceedance on each sampling data.

 

8.1.7      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 during November 2017. Hence, no investigation report was provided for all exceedances recorded under Contract No. HY/2013/02 in November 2017. There was no Action and Limit Level exceedance recorded on other monitoring date at the monitoring stations showed at Table 4.1 by the Environmental Team of Contract No. HY/2013/01 during the reporting period.

 

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

 

8.1.9      During November 2017, there was a complaint received by Environmental Protection Department on 23 November 2017 and referred to the ENPO. Then the ENPO forwarded the complaint by email to the R.E. (AECOM), the Contractor (China Harbour) and the ET (ETS-Testconsult Ltd.) of Contract No. HY/2013/02 17:58 on 23 November 2017. The complaint detail was "港珠澳大橋人工島地盤,由於不是每處都灑水,引致大量塵埃,近收費亭最嚴重"

After received the details of the complaint from the ENPO, the ET of Contract No. HY/2013/02 have performed a related follow-up inspection on 24 November 2017 to investigate this event. The inspection was concentrated to check if regular watering launched inside the construction site by the Contractor of Contract No. HY/2013/02.

 

After checked with the Contractor of Contract No. HY/2013/02 during 15:00 to 16:00 on 24 November 2017, the worksite was wetted with water (see attached photo and location plan of watering photo) near收費亭 and spraying with water by watering cars were observed on the worksite during the follow-up inspection. Besides, 收費亭was not managed by Contract No. HY/2013/02. Hence, the complaint was found non-related to Contract No. HY/2013/02. The complaint investigation report (Log No. 016) was provided in Appendix K.

 

8.1.10    There were no notifications of summons or prosecutions received during the reporting period.

 

- END OF REPORT -