TABLE OF CONTENTS

Executive SUMMARY

1

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

3

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

6-7

4.3

Monitoring Results

7

 

 

 

5

DOLPHIN MONITORING

8

5.1

Monitoring Locations

8

5.2

Monitoring Requirements

8

5.3

Monitoring Results

8

 

 

 

6

ENVIRONMENTAL SITE INSPECTION AND AUDIT

9-12

6.1

Site Inspection

9

6.2

Advice on the Solid and Liquid Waste Management Status

9-10

6.3

Environmental Licenses and Permits

10

6.4

Implementation Status of Environmental Mitigation Measures

11

6.5

Summary of Exceedance of the Environmental Quality Performance Limit

11

6.6

Summary of Complaints, Notification of Summons and Successful Prosecution

11-12

 

 

 

7

FUTURE KEY ISSUES

12

7.1

Construction Programme for the Coming Months

12

7.2

Environmental Site Inspection Schedule for the Coming Month

12

 

 

 

8

CONCLUSION

12-13

8.1

Conclusions

12-13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 6.1

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

 

Table 7.1

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

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

 

 

 

 

 

 

 

 

 

 

 

 

 

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 Twenty-third 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 October 2016 to 31 October 2016.

 

Site Activities

 

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

 

§  Bored piles works in Portion C & F;

§  Pier / Abutment in Portion A, C & F;

§  Pile Cap in Portion C & F;

§  Pre-bored H-pile for sign gantries in Portion D;

§  Storm drain and water main construction;

§  Footing construction of directional signs and duct laying in Portion I & CLP area;

§  Marine Delivery of precast segment & Construction of bridge deck in Portion D, A & E

§  Marine sediment excavation activities from the land-based works and corresponding disposal at the designated disposal sites

 

 

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 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/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:                06, 13, 20 & 27 October 2016

 

 

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/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.

 

There were three Action Level exceedances of SS at station IS(Mf)11, SR6 and SR7 during mid-flood tide recorded on 03 October 2016, one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 17 October 2016 and one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 19 October 2016. After investigation, there were concluded that the exceedances were not relevant to this Contract since there was no marine works carried out by this Contract during October 2016. The Investigation Reports No. 004, 005 and 006 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J. 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/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 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:

 

§  Bored piles works in Portion C & F;

§  Pier / Abutment in Portion C & F;

§  Pile Cap in Portion C & F;

§  Pre-bored H-pile for sign gantries in Portion D;

§  Storm drain and water main construction;

§  Footing construction of directional signs and duct laying in Portion I & CLP area;

§  Marine Delivery of precast segment & Construction of bridge deck in Portion D, A & E

§  Marine sediment excavation activities from the land-based works and corresponding disposal at the designated disposal sites.

 

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:

 

§   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 Twenty-third 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 October 2016 to 31 October 2016.

 

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. Dominic Mow

6274 0909

315205116

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

Assistant 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:

 

 

§    Bored piles works in Portion C & F

§    Pier / Abutment in Portion A, C & F;

§    Pile Cap in Portion C & F ;

§    Pre-bored H-pile for sign gantries in Portion D;

§    Storm drain and water main construction;

§    Footing construction of directional signs and duct laying in Portion I & CLP area;

§    Marine delivery of precast segment & Construction of bridge deck in Portion D, A & E; &

§    Marine sediment excavation activities from the land-based works and corresponding disposal at the designated disposal sites.

 

 

 

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 AMS7 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) 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/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. 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/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 AMS7 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)

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/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 No. 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 (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/2010/02. There were three Action Level exceedances of SS at station IS(Mf)11, SR6 and SR7 during mid-flood tide recorded on 03 October 2016, one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 17 October 2016 and one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 19 October 2016.

 

4.3.2       Exceedances were not due to operation of the works under Contract No. HY/2013/02 because there was no marine works or barge of this Contract during October 2016 which was unlikely to generate suspended solids in the marine water. Secondly, the SS exceedances were recorded during flood tide in which the monitoring station IS(Mf)11 and SR7 is located at upstream of the works area of this Contract and the monitoring station SR6 is located at downstream of the monitoring stations IS10 and SR5 which are located in between the works area of this Contract. There were no SS exceedance recorded at the monitoring station IS10 and SR5. Therefore, it is unlikely that the SS exceedances recorded at IS(Mf)11, SR6 and SR7 during mid-flood tide on 03 October 2016, and SS exceedances recorded at SR6 on 17 and 19 October 2016 during mid-flood tide were contributed by the works under Contract No. HY/2013/02. The water quality mitigation measures as mentioned in EM&A Manual and EP was fully implemented in this Contract which including maintenance of the silt curtain on a daily basis etc. Hence, the exceedances were considered as non-Project related.

 

4.3.3       After investigation, there were concluded that the exceedances were not relevant to this Contract due to the above mentioned reasons. The Investigation Reports No. 004, 005 and 006 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J. There was no Action and Limit Level exceedance recorded on other date at the monitoring stations showed in Table 4.1 by the Environmental Team of Contract No. HY/2010/02 during the reporting period.

 

4.3.4       Although the exceedances were not relevant to this Contract, the Contractor was reminded to ensure provision of ongoing maintenance to the silt curtains and to carry out maintenance work once defects were found.

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 transect(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 5.1b        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/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 06, 13, 20 & 27 October 2016.

 

6.1.2     Particular observations during the site inspections are described below:

 

29 September 2016

(a)        Improper storage of C & D materials was observed at Portion C. The C & D materials were collected. The observation was closed on 06 October 2016.

 

06 October 2016

(a)        Improper disposal of general refuse was observed at Portion C. The general refuse was collected. The observation was closed on 13 October 2016.

(b)        Stagnant water pool in a container was observed at Portion C. The stagnant water pool in a container  was cleared. The observation was closed on 13 October 2016.

 

13 October 2016

(a)         Improper disposal of general refuse was observed at Portion F. The general refuse was collected. The observation was closed on 20 October 2016.

(b)        Inappropriate size of NRMM label was observed at Portion D. Appropriate size of NRMM label was provided at Portion D. The observation was closed on 20 October 2016.

(c)         Stock of cement without impervious cover was observed at Portion D. Impervious cover was provided to cover the stock of cement at Portion D. The observation was closed on 20 October 2016.

 

20 October 2016

(a)        C & D waste was observed at Portion C. C & D wastes were collected at Portion C. The observation was closed on 27 October 2016.

(b)        Discoloured NRMM label was observed on an excavator at Portion F. Coloured NRMM label was provided on an excavator at Portion F. The observation was closed on 27 October 2016.

(c)        Oil containers without drip tray were observed at Portion D. Drip tray was provided under the oil containers at Portion D. The observation was closed on 27 October 2016.

 

27 October 2016

(a)        Oil contaminated soil was observed at Portion C. Follow-actions for outstanding observation will be inspected during the next site inspection

(b)        Oil container without drip tray was observed at Portion C. 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     1096 m3 of excavated marine sediment was generated in this reporting period. The excavated marine sediment was stored properly on site during this reporting period until further instruction by the Engineer. The disposal of excavated sediment as per EP-353/2009/K to be implemented subject to confirmation.

 

6.2.3     Disposal of Marine Sediment

 

6.2.3.1   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.

 

6.2.3.2    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.

 

6.2.3.3    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 (EP/MD/17-105 in this reporting period) is responsible for reporting to EPD the quantity disposed of as the condition stipulated in the dumping permit.

 

6.2.4         There was 1096 m3 marine sediment extracted from bored piling in this Contract disposed to allocated dumping site via Contract No. HY/2013/03 on 07 and 24 October 2016 in this reporting period. The quantity disposed up to end of October 2016 was 16952 m3. The Monthly Summary of Marine sediment disposed to dumping site was provided in Appendix E and Table 6.1.

 

Table 6.1          Summary of marine sediment disposed to dumping site via Contract No.

                        HY/2013/03

Month/Year

Quantity disposed (m3)

January 2016

1272

February 2016

2816

March 2016

600

April 2016

5128

May 2016

0

June 2016

1200

July 2016

728

August 2016

1784

September 2016

2328

October 2016

1096

Total =

16952

 

6.2.5     The Contractor shall ensure no spilling and overflowing of materials during loading / unloading / transportation is allowed.

 

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

 

6.2.7     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     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. The marine traffic records and geographical plots of all the vessels tracks to demonstrate the conformance of the vessel to the proposed route in October 2016 would be provided to ER, ETL, IEC/ENPO for checking within the month of November 2016.

 

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 AMS7 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    There were three Action Level exceedances of SS at station IS(Mf)11, SR6 and SR7 during mid-flood tide recorded on 03 October 2016, one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 17 October 2016 and one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 19 October 2016. After investigation, there were concluded that the exceedances were not relevant to this Contract since there was no marine works carried out by this Contract during October 2016. The Investigation Reports No. 004, 005 and 006 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J. 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/2010/02 during the reporting period.

 

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 November 2016 are summarized in Table 7.1.

 

Table 7.1          Construction Activities for Coming Month

Site Area

 Description of Activities

  Portion C & F

Bored Piles Works

Pier / Abutment

Pile Cap

Portion D

Pre-bored H-pile for sign gantries

Portion D, A & E

Marine delivery of precast segment & Construction of bridge deck

Portion I & CLP Area

Footing construction of directional signs and dust laying

 

Storm drain and water main construction

 

Marine sediment excavation activities from the land-based works and corresponding disposal at the designated disposal sites

 

7.2       Environmental Site Inspection Schedule for the Coming Month

 

7.2.1     The tentative schedule for weekly site inspections for November 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 AMS7 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    There were three Action Level exceedances of SS at station IS(Mf)11, SR6 and SR7 during mid-flood tide recorded on 03 October 2016, one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 17 October 2016 and one Action Level exceedances of SS at station SR6 during mid-flood tide recorded on 19 October 2016. After investigation, there were concluded that the exceedances were not relevant to this Contract since there was no marine works carried out by this Contract during October 2016. The Investigation Reports No. 004, 005 and 006 (including the causes of exceedance, action taken and recommendation for mitigation) for Action or Limit Level Non-compliance were provided in Appendix J. 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/2010/02 during the reporting period.

 

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 -