TABLE OF CONTENTS

Executive SUMMARY

Page

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

3-4

2.1

Monitoring Locations

3

2.2

Monitoring Requirements

4

2.3

Monitoring Results

4

 

 

 

3

NOISE MONITORING

5

3.1

Monitoring Locations

5

3.2

Monitoring Requirements

5

3.3

Monitoring Results

5

 

 

 

4

WATER QUALITY MONITORING

6-7

4.1

Monitoring Locations

6

4.2

Monitoring Requirements

6

4.3

Monitoring Locations

7

 

 

 

5

DOLPHIN MONITORING

8

5.1

Monitoring Locations

8

5.2

Monitoring Requirements

8

5.3

Monitoring Locations

8

 

 

 

6

ENVIRONMENTAL SITE INSPECTION AND AUDIT

9-10

6.1

Site Inspection

9

6.2

Advice on the Solid and Liquid Waste Management Status

9

6.3

Environmental Licenses and Permits

9

6.4

Implementation Status of Environmental Mitigation Measures

10

6.5

Summary of Exceedance of the Environmental Quality Performance Limit

10

6.6

Summary of Complaints, Notification of Summons and Successful Prosecution

10

 

 

 

7

FUTURE KEY ISSUES

11

7.1

Construction Programme for the Coming Months

11

7.2

Environmental Site Inspection Schedule for the Coming Month

11

 

 

 

8

CONCLUSION

11

8.1

Conclusions

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 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 –

Table 7.1

Derived Vale of Action Level (AL) and Limit Level (LL) for Chinese White Dolphin Monitoring Construction Activities for coming month

 

 

 

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

Waste Flow Table

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 Report on Action or Limit Level Non-compliance

 

 

 

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/I for HKBCF was issued on 17 July 2015. 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 Thirteen 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 December 2015 to 31 December 2015.

 

Site Activities

 

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

 

 

§         Bored piles works in Portion A1 & D;

§         Pier & Abutment in Portion H & Pile Cap in Portion D;

§         Formwork and falsework for bridge deck at Portion H;

§         Temporary marine loading and unloading point for segment delivery in Portion A1;

§         UU Detection Works in Portion I;

§         Pit excavation work and duct laying in Portion I;

 

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/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works 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 AMS7A, noise monitoring at NMS2 and NMS3B, water quality monitoring show at Figure 2 and dolphin monitoring show at Figure 3 as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2010/02 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, 10, 18, 24 and 31 December 2015

 

 

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 AMS7A by the Environmental Team of Contract No. HY/2010/02 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/2010/02 during the reporting period.

 

Since the marine construction works of temporary loading and unloading point was carried out from 02 Dec 2015 to 30 Dec 2015, water quality monitoring and impact dolphin monitoring are required from this reporting month.

 

For water quality monitoring, one Action Level exceedance of SS at IS(Mf)11 during mid-flood tide was recorded on 28 Dec 2015. After investigation, there is no adequate information to conclude the recorded exceedance is related to this Contract. The Investigation Report No. 002 (including the causes of exceedance, action taken and recommendation for mitigation) on Action or Limit Level Non-compliance is provided in Appendix J. No Action and Limit Level exceedance was recorded on other date by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

 

Impact dolphin monitoring results at all transects are reported in the EM&A Report prepared for Contract No. HY/2010/02.

 

Complaint Log

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

 

Notifications of Summons and Successful Prosecutions

 

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

 

Reporting Change

 

There was no reporting change in the reporting period.

 

Future Key Issues

 

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

 

§            Bored piles works in Portion A1, D, C1& F;

§            Pile Cap in Portion H & Pile Cap in Portion D;

§            Formwork and falsework for deck of Bridge B1 at Portion H;

§            Construction of temporary marine loading and unloading point for segment delivery in Portion A1;

§            UU Detection Works in Portion I; and

§            Pit excavation work and duct laying in Portion I.

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/I for HKBCF was issued on 17 July 2015. 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:

 

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

     

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

     

§            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;

     

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

     

§            Other works in accordance with the Contract.

     

1.1.4 This is the Thirteen 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 December 2015 to 31 December 2015.

 

 

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. Fred Yeung

63308293

31525116

Environmental Project Office / Independent Environmental Checker (Ramboll Environ Hong Kong Limited) 

Environmental Project Office Leader

Mr. Y. H. Hui

34652888

34652899

Independent Environmental Checker

Mr. Raymond Dai

34652888

34652899

Environmental Site Supervisor

Mr. Ray Yan

51818165

34652899

Contractor (China Harbour Engineering Co., Ltd.)

Environmental Officer

Mr. Richard Ng

59770593

39150300

Environmental Supervisor

Ms. Joy Chan

54005086

39150300

Environmental Supervisor

Ms. Selena Yang

55122662

39150300

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:

 

§  Bored piles works in Portion A1 & D;

§  Pier & Abutment in Portion H & Pile Cap in Portion D;

§  Formwork and falsework for bridge deck at Portion H;

§  Temporary marine loading and unloading point for segment delivery in Portion A1;

§  UU Detection Works in Portion I; and

§  Pit excavation work and duct laying in Portion I.

 

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/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works 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 AMS7A as part of EM&A programme if these air quality monitoring stations are no longer covered under Contract No. HY/2010/02 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) Buidling

AMS7A(1)(2)

Chu Kong Air-Sea Union Transportation Co. Ltd.

                     

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)          This location was relocated back to the original location AMS7 (located at Hong Kong SkyCity Marriott Hotel) of the updated EM&A Manual on 30 December 2015 and the air monitoring at AMS7 will be started in the next reporting period.

 

          

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/2010/02 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.

 

 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

 AMS7A –Chu Kong Air-Sea Union Transportation Co. Ltd.

            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

 AMS7A –Chu Kong Air-Sea Union Transportation Co. Ltd.

            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 AMS7A are reported in the monthly EM&A Reports prepared for Contract Nos. HY/2011/03 and HY/2010/02 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 AMS7A by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

3          NOISE MONITORING

     

3.1       Monitoring Locations

     

3.1.1    The noise monitoring works for the Contract are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works. 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/2010/02. 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)

Seaview 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/2010/02.

     

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

 

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.

     

     

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

     

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/2010/02. There was no exceedance for noise recorded at station NMS2 and station NMS3B by the Environmental Team of Contract No. HY/2010/02 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/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works. The ET of the Contract or another ET of the HZMB project is required to conduct water quality monitoring at fifteen stations (3 Impact Stations, 7 Sensitive Receiver Stations and 5 Control/Far Field Stations) as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2010/02. 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

IS7

Impact Station (Close to HKBCF construction site)

812244

818777

IS10

Impact Station (Close to HKBCF construction site)

812577

820670

IS(Mf)11

Impact Station (Close to HKBCF construction site)

813562

820716

SR3

Sensitive receivers (San Tau SSSI)

810525

816456

SR4(N)

Sensitive receivers (Tai Ho)

814705

817859

SR5

Sensitive receivers (Artificial Reef in NE Airport)

811489

820455

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

Control Station

809989

821117

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 Nos. HY/2010/02.

 

 

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

(depthaveraged) 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

Since the marine construction works of temporary loading and unloading point was carried out from 02 Dec 2015 to 30 Dec 2015, water quality monitoring is required from this reporting month.

 

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/2010/02. One Action Level exceedance of SS at IS(Mf)11 during mid-flood tide was recorded on 28 Dec 2015. After investigation, there is no adequate information to conclude the recorded exceedance is related to this Contract. The Investigation Report No. 002 (including the causes of exceedance, action taken and recommendation for mitigation) on Action or Limit Level Non-compliance is provided in Appendix J. No Action and Limit Level exceedance was recorded on other date by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

 

5           DOLPHIN MONITORING

     

5.1        Monitoring Locations

The dolphin monitoring works for the Contract are covered by Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works. The ET of the Contract or another ET of the HZMB project is required to conduct dolphin monitoring at 23 transects as part of EM&A programme if these transects are no longer covered under Contract No. HY/2010/02. 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

Remarks:

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 station(s) is/are no longer covered by another ET of the HZMB project.

 

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 Nos. HY/2010/02.

 

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 5.1(b) 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

Since the marine construction works of temporary loading and unloading point was carried out from 02 Dec 2015 to 30 Dec 2015, impact dolphin monitoring is required from this reporting month.

 

The dolphin survey results for all transects are reported in the monthly EM&A Reports prepared for Contract No. HY/2010/02.

 

 

 

 

 

 

 

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, 10, 18, 24 and 31 December 2015.

 

6.1.2     Particular observations during the site inspections are described below:

 

24     November 2015

(a)      Chemical container without drip tray was observed at Portion H. A drip tray was provided. This observation was closed on 2 December 2015.

 

02 December 2015

(a)      Chemical waste container was observed improperly stored at Portion H. The Chemical waste container was removed. This observation was closed on 10 December 2015.

 

10 December  2015

(a)      No observation was made during this site inspection.

 

18 December  2015

(a)      Chemical container without drip tray was observed at Portion D. A drip tray was provided for the chemical container. This observation was closed on 24 December 2015.

 

24 December 2015

(a)      Unsealed water safety barriers were observed at Portion D. The water safety barriers were sealed. This observation was closed on 31 December 2015.

(b)      General refuses were observed at Portion D. The refuses were collected. This observation was closed on 31 December 2015.

 

31 December 2015

(a)       No observation was made during this 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    Disposal of excavated sediment was generated and stored properly on site during this reporting period. The excavated sediment will be stored properly on site until further instruction by the Engineer. The disposal of excavated sediment as per EP-353/2009/I to be implemented subject to confirmation.

 

6.2.3     The monthly summary of waste flow table is detailed in Appendix E.

 

6.2.4     The Contractor was reminded that chemical waste containers should be properly treated and stored temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packing, Labelling and Storage of Chemical Waste.

 

6.3       Environmental Licenses and Permits

 

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 provide well-maintained plant operated on-site and plant served regularly;

 

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

 

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

 

6.4.6     Training material of Regular Marine Travel Route Plan was prepared. Since the training material is under review, and marine delivery operation still not commence, the RMTRP training is not yet started. There haven’t any vessel in or out the BCF perimeter silt curtain so that no Marine Travel Route was recorded.

 

6.4.7     The tool box training of dolphin was carried out in Dec 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 reporting period.

 

6.4.8     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 AMS7A by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

 

6.5.3     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/2010/02 during the reporting period.

 

6.5.4     For water quality monitoring, one Action Level exceedance of SS at IS(Mf)11 during mid-flood tide was recorded on 28 Dec 2015. After investigation, there is no adequate information to conclude the recorded exceedance is related to this Contract. No Action and Limit Level exceedance was recorded on other date by the Environmental Team of Contract No. HY/2010/02 during the reporting period. The Investigation on Action or Limit Level Non-compliance is provided in Appendix J.

 

6.5.5     Impact dolphin monitoring results at all transects are reported in the EM&A Reports prepared for Contract No. HY/2010/02.

 

6.6       Summary of Complaints, Notification of Summons and Successful Prosecution

 

6.6.1     There were no complaints received during the reporting period.

 

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 January 2016 are summarized in Table 7.1.

 

Table 7.1       Construction Activities for Coming Month

 

Site Area

 Description of Activities

  Portion A1, D, C1 & F

Bored Piles Works

Portion I

Pit excavation work and duct laying

  Portion I

UU Detection Works

Portion H.

Pile Cap & abutment

Portion H.

Formwork and falsework for deck of Bridge B1

Portion D.

Pile Cap

  Portion A1

Temporary marine loading and unloading point for segment delivery

 

7.2       Environmental Site Inspection Schedule for the Coming Month

 

7.2.1     The tentative schedule for weekly site inspections for January 2016 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 AMS7A by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

 

8.1.4    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/2010/02 during the reporting period.

 

8.1.5    For water quality monitoring, one Action Level exceedance of SS at IS(Mf)11 during mid-flood tide was recorded on 28 Dec 2015. After investigation, there is no adequate information to conclude the recorded exceedance is related to this Contract. No Action and Limit Level exceedance was recorded on other date by the Environmental Team of Contract No. HY/2010/02 during the reporting period. The Investigation on Action or Limit Level Non-compliance is provided in Appendix J.

 

 

8.1.6    Impact dolphin monitoring results at all transects are reported in the EM&A Reports prepared for Contract No. HY/2010/02.

 

8.1.7    There were no complaints received during the reporting period.

 

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

 

- END OF REPORT -