Verification by IEC

Certification by ET

 


Contract No. HY/2013/01

Hong Kong-Zhuhai-Macao Bridge

Hong Kong Boundary Crossing Facilities – Passenger Clearance Building

 

 

 

 

Monthly EM&A Report No. 49

(Covering the Period from 1 October 2018 to 31 October 2018)

 

20 November 2018

Revision 2

 

 

 

 

 

 

 

Main Contractor                                                                                                                  Environmental Team 

 

 

 

 

Contents

Executive Summary

1....... Introduction. 1

1.1                           Basic Project Information. 1

1.2                           Project Organisation. 2

1.3                           Construction Programme. 3

1.4                           Construction Works Undertaken During the Reporting Period. 3

2...... Air Quality Monitoring. 4

2.1                           Monitoring Requirements. 4

2.2                           Monitoring Equipment 4

2.3                           Monitoring Locations. 4

2.4                           Monitoring Parameters, Frequency and Duration. 5

2.5                           Monitoring Methodology. 5

2.6                           Monitoring Schedule for the Reporting Month. 5

2.7                           Monitoring Results. 5

3...... Noise Monitoring. 6

3.1                           Monitoring Requirements. 6

3.2                           Monitoring Equipment 6

3.3                           Monitoring Locations. 6

3.4                           Monitoring Parameters, Frequency and Duration. 7

3.5                           Monitoring Methodology. 7

3.6                           Monitoring Schedule for the Reporting Month. 7

3.7                           Monitoring Results. 7

4...... Water Quality Monitoring. 8

4.1                           Monitoring Requirements. 8

4.2                           Monitoring Equipment 8

4.3                           Monitoring Parameters, Frequency and Duration. 8

4.4                           Monitoring Location. 9

4.5                           Monitoring Methodology. 10

4.6                           Monitoring Result 10

5...... Dolphins Monitoring. 12

5.1                           Monitoring Requirement 12

5.2                           Monitoring Methodology and Location. 12

5.3                           Monitoring Schedule for the Reporting Month. 14

5.4                           Monitoring Result 14

6...... Environmental Site Inspection and Audit 15

6.1                           Site Inspection. 15

6.2                           Advice on the Solid and Liquid Waste Management Status. 16

6.3                           Environmental Licenses and Permits. 17

6.4                           Implementation Status of Environmental Mitigation Measures. 17

6.5                           Summary of Exceedance of the Environmental Quality Performance Limit 17

6.6                           Summary of Complaints, Notification of Summons and Successful Prosecution. 18

7...... Future Key Issues. 19

7.1                           Construction Programme for the Coming Months. 19

7.2                           Environmental Site Inspection and Monitoring Schedule for the Coming Month. 19

8...... Conclusions. 20

8.1                           Conclusions. 20


Figures

Figure 2.1            Location of Air Quality and Noise Monitoring Stations and Wind Station

Figure 4.1            Location of Water Monitoring Stations

Figure 5.1     Transect Line Layout in Northwest and Northeast Lantau Survey Areas

 

Appendices

Appendix A         Location of Works Areas

Appendix B         Project Organization for Environmental Works

Appendix C         Construction Programme

Appendix D         (Not Used)

Appendix E         (Not Used)

Appendix F         (Not Used)

Appendix G         (Not Used)

Appendix H         Event and Action Plan

Appendix I           Waste Flow Table  

Appendix J          Environmental Licenses and Permits

Appendix K         Implementation Schedule for Environmental Mitigation Measures (EMIS)

Appendix L          Statistics on Environmental Complaints, Notification of Summons and Successful Prosecutions

Appendix M        Environmental Site Inspection Schedule  

 

 

Executive Summary

This Monthly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities (HZMB HKBCF) – Passenger Clearance Building (hereafter referred to as “the Contract”) (includes the construction works of Contract No. HY/2013/06 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Automatic Vehicle Clearance Support System within Contract No. HY/2013/01 works area) for the Highways Department of Hong Kong Special Administrative Region (HKSAR). The Contract was awarded to Leighton – Chun Wo Joint Venture (construction works of Contract No. HY/2013/06 was awarded to ATAL Technologies Limited within Contract No. HY/2013/01 works area) (hereafter referred to as “the Contractor”) and Atkins China Limited was appointed as the Environmental Team (ET) by the Contractor.

The Contract is part of HZMB HKBCF Project 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 26 September 2014 and the construction works of the Contract commenced on 6 October 2014. The construction works of the Contract No. HY/2013/06 within Contract No. HY/2013/01 works area commenced on 20 February 2018.

Atkins China 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 will be providing environmental team services to the Contract.

This is the forty-ninth monthly EM&A Report for the Contract which summarizes findings of the EM&A works during the reporting period from 1 to 31 October 2018. (includes the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area)

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). The air quality, noise, water quality and dolphin monitoring works under Contract No. HY/2010/02 Hong Kong-Zhuhai-Macao Bridge HKBCF – Reclamation Works were suspended from 1 September 2017. The ET of Contract No. HY/2013/01 is required and continues the same implementation of environmental monitoring commencing on 1 September 2017. It should be noted that the air quality monitoring station (AMS6) is covered by Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF. Noise monitoring station (NMS3C) responsibility under the EM&A programme for the HZMB HKBCF Project has been changed from Contract No. HY/2013/01 to Contract No. HY/2013/04 since 20 August 2018. Noise monitoring station (NMS2), air quality monitoring station (AMS7B), water quality monitoring and Chinese white dolphin monitoring responsibility under the EM&A programme for the HZMB HKBCF Project has been changed from Contract No. HY/2013/01 to Contract No. HY/2013/04 since 1 October 2018.

Environmental Site Inspection:          5, 10, 18, 24 and 31 October 2018

Breaches of Action and Limit Levels

A summary of environmental exceedances for the reporting period are listed below:

Environmental Monitoring

Parameters

Action Level (AL)

Limit Level (LL)

Air Quality

1-hour TSP

-

-

24-hour TSP

-

-

Noise

Leq (30 min)

-

-

 

Water Quality

 

Suspended solids level (SS)

1

-

Turbidity level

1

-

Dissolved oxygen level (DO)

-

-

Dolphin Monitoring

Quarterly Analysis

-

-

 

Complaint Log

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

Notifications of Summons and Successful Prosecutions

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

Reporting Change

The entire environmental monitoring responsibility under the EM&A programme for the HZMB HKBCF Project has been changed from Contract No. HY/2013/01 to Contract No. HY/2013/04 since 1 October 2018.

The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the owner since 24 October 2018.

Future Key Issues

No construction works will be conducted by Contract No. HY/2013/01 in the upcoming month.

1        Introduction

1.1          Basic Project Information

1.1.1          This Monthly Environmental Monitoring and Audit (EM&A) Report is prepared for Contract No. HY/2013/01 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Passenger Clearance Building (hereafter referred to as “the Contract”) (includes the construction works of Contract No. HY/2013/06 Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities – Automatic Vehicle Clearance Support System within Contract No. HY/2013/01 works area) for the Highways Department of Hong Kong Special Administrative Region. The Contract was awarded to Leighton – Chun Wo Joint Venture (construction works of Contract No. HY/2013/06 was awarded to ATAL Technologies Limited within Contract No. HY/2013/01 works area) (hereafter referred to as “the Contractor”) and Atkins China Limited was appointed as the Environmental Team (ET) by the Contractor.

1.1.2          The Contract is part of Hong Kong – Zhuhai – Macao Bridge Hong Kong Boundary Crossing Facilities (HKBCF) which is a “Designated Project”, under Schedule 2 of the Environmental Impact Assessment Ordinance (EIAO) (Cap 499). An Environmental Impact Assessment (EIA) Report (Register No. AEIAR-145/2009) was prepared for the Project. The current Environmental Permit (EP) No. EP-353/2009/K for HKBCF was issued on 11 April 2016. These documents are available through the EIA Ordinance Register. Site preparation work of the Contract started on 26 September 2014 and the construction works of the Contract commenced on 6 October 2014. The construction works of the Contract No. HY/2013/06 within Contract No. HY/2013/01 works area commenced on 20 February 2018.The works areas of the Contract are shown in Appendix A.

1.1.3          The proposed works under this Contract comprise the following:

For Contract No. HY/2013/01

·            Construction of Passenger Clearance Building (PCB) including architectural and builders works, structural steel roof and reinforced concrete frames, basement, piled foundations, aluminium roof, curtain wall facades, building services and electrical and mechanical works;

·            Installation of district cooling system including seawater cooling intake pumping station, seawater intake and discharge water pipelines work; Installation of Chilled water cooling pipelines system, heat exchanger and chilled pumping system;

·            Construction of transport and associated facilities connecting to the PCB entailing the Emergency Vehicular Access, an at-grade mainland side drop-off area, an Hong Kong side elevated drop-off deck and 8 numbers of footbridge links;

·            Construction of a public toilet, 6 numbers of C&ED observation booths, a generator set building and a refuse storage & material recovery chamber;

·            Construction of a section of 70m common utilities enclosure and staff subway and civil provisions for associated electrical and mechanical works;

·            Construction of drainage, sewerage, fresh water & flushing water supply and utilities & service works;

·            Construction of civil provisions, including draw pits & ducting for Traffic Control and Surveillance System (TCSS) and Extra Low Voltage System (ELV);

·            Construction of box culvert A;

·            Construction of 2 numbers of vehicular bridge abutments at mainland side pickup area earthmound;

·            Construction of geotechnical works including top up the existing earth mound from +11.5mPD to the finished level as stated in the Contract, reinforced earth slope and fill slopes and special backdrop manhole at mainland side pickup area earthmound;

·            Landscape hardworks and softworks; and

·            Other works which are shown on the Drawings or specified in the Specification or which may be ordered in accordance with the Contract.

      For Contract No. HY/2013/06 within Contract No. HY/2013/01

·       The Automatic Vehicle Clearance Support System amid to increasing traffic flow for Hong Kong-Zhuhai-Macao Bridge Hong Kong Boundary Crossing Facilities;

·       Responsible for designs and develops a set of tailor-made computer monitoring and control systems to for daily security operation; and

·       The Clearance Workstations at 72 vehicle clearance kiosks, Customs and Excise’s inbound and outbound traffic control centers as well as a Vehicle Tracking System.

1.1.4      This is the forty-ninth monthly EM&A Report for the Contract No. HY/2013/01 which summarizes the audit findings of the EM&A programme during the reporting period from 1 to 31 October 2018 (included the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area).

1.2          Project Organisation

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

Telephone

Fax

For Contract No. HY/2013/01

Engineer or Engineer’s Representative
(AECOM Asia Co. Ltd.)

Chief Resident Engineer

Malcolm Sage

3958 7330

3468 2076

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

Environmental Project Office Leader

Y. H. Hui

3465 2888

3465 2899

Independent Environmental Checker

Raymond Dai

3465 2888

3465 2899

Contractor
(Leighton – Chun Wo Joint Venture)

Project Manager

Owen Leung

9232 5750

3621 0180

Environmental Officer

Stephen Tsang

9686 0787

3621 0180

Environmental Team
(Atkins China Limited)

Environmental Team Leader

Keith Chau

2972 1721

2890 6343

24 hours complaint hotline

---

---

3958 7300

---

For Contract No. HY/2013/06 within Contract No. HY/2013/01 works area

Engineer or Engineer’s Representative
(AECOM Asia Co. Ltd.)

Chief Registered Architect

Malcolm Sage

3958 7330

3468 2076

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

Environmental Project Office Leader

Y. H. Hui

3465 2888

3465 2899

Independent Environmental Checker

Raymond Dai

3465 2888

3465 2899

Contractor
(ATAL Technologies Limited)

Site Agent

Mr. Eric Yim

2565 3355

3162 5217

Environmental Officer

Mr. W. Li

2565 3137

3162 5217

Environmental Team
(Atkins China Limited)

Environmental Team Leader

Keith Chau

2972 1721

2890 6343

24 hours complaint hotline

---

---

6509 0375

---

 

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:

For Contract No. HY/2013/01

Land Based work and Marine Based work

·            According to information from the Contractor, the construction works of Contract No. HY/2013/01 have been completed. The related completion certificate (Ref.: BWLM: TTHK: mlmp:60313494/C1/M15/905/M1422-2018009635T) dated 9 August 2018 was issued by Engineer’s Representative.

·            Maintenance works.

For Contract No. HY/2013/06 within Contract No. HY/2013/01 works area

·            According to information from Contractor, no construction works were be conducted by Contract No. HY/2013/06 except System Testing and Commissioning at ELV & Sever Room, and Zone E PCB.

2        Air Quality Monitoring

2.1          Monitoring Requirements

2.1.1      The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.1.2      The Action and Limit Level for the 1-hour and 24-hour TSP are provided in Table 2.1 and 2.2 respectively.

Table 2.1         Action and Limit Levels for 1-hour TSP

Monitoring Station

Action Level, µg/m3

Limit Level, µg/m3

AMS6 - Dragonair / CNAC (Group) Building (HKIA)

360

500

AMS7B – 3RS Site Office

370

Table 2.2         Action and Limit Levels for 24-hour TSP

Monitoring Station

Action Level, µg/m3

Limit Level, µg/m3

AMS6 – Dragonair / CNAC (Group) Building (HKIA)

173

260

AMS7B – 3RS Site Office

183

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

2.2          Monitoring Equipment

2.2.1      The monitoring equipment are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.3          Monitoring Locations

2.3.1      The air quality monitoring works for the Contract are covered by Contract No. HY/2013/04 Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) and Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between Scenic Hill and HKBCF.

2.3.2      The permission to carry out impact air quality monitoring work at AMS7 (Hong Kong SkyCity Marriott Hotel) was not granted after 31 January 2015.  The air quality monitoring location (AMS7) was relocated to a nearby air sensitive receiver, Chu Kong Air-Sea Union Transportation Co. Ltd, from 5 February 2015.  The alternative location was approved by EPD on 5 February 2015. However, AMS7A was relocated back to its original location (AMS7-Hong Kong SkyCity Marriott Hotel) on 30 December 2015. The relocation of air quality monitoring location, AMS7A, back to AMS7 was approved by EPD on 21 December 2015. As the permission to carry out air quality monitoring at Hong Kong SkyCity Marriott Hotel was not granted after the end of January 2018, as such, a proposal for the monitoring location relocated to 3RS Site Office(AMS7B) was justified by the ET Leader for Contract No. HY/2013/01 on 22 January 2018; verified by the IEC on 24 January 2018; and submitted to EPD on 30 January 2018, and the AQM has been carrying out at AMS7B with EPD’s consent since 6 February 2018.The baseline and action/limit level for air quality as derived from the baseline monitoring data recorded at Hong Kong SkyCity Marriott Hotel (AMS7) was adopted for the air quality monitoring location.

2.3.3      The ET of the Contract or another ET of the HZMB project is required to conduct air quality monitoring at AMS6 and AMS7B as part of EM&A programme if these air quality monitoring stations are no longer covered under Contract Nos. HY/2011/03 and HY/2013/04.

2.3.4      Table 2.3 describes the details of the monitoring stations and Figure 2.1 shows the locations of the air quality monitoring stations.

Table 2.3         Construction Dust Monitoring Locations

ID

Location Description

AMS6

Dragonair/CNAC (Group) Building

AMS7B(1)

3RS Site Office

Remarks:

(1)    The original monitoring location was at Hong Kong SkyCity Marriott Hotel (AMS7). As the permission to carry out air quality monitoring at Hong Kong SkyCity Marriott Hotel was not granted after 31 January 2015, the monitoring location was relocated to Chu Kong Air-Sea Union Transportation Co. Ltd. (AMS7A) from 5 February 2015 to 30 December 2015. The alternative monitoring location at Chu Kong Air-Sea Union Transportation Co. Ltd. was approved by EPD on 5 February 2015. However, AMS7A was relocated back to its original location (AMS7-Hong Kong SkyCity Marriott Hotel) on 30 December 2015. The relocation of air quality monitoring location, AMS7A, back to AMS7 was approved by EPD on 21 December 2015. As the permission to carry out air quality monitoring at Hong Kong SkyCity Marriott Hotel was not granted after the end of January 2018, as such, a proposal for the monitoring location relocated to 3RS Site Office(AMS7B) was justified by the ET Leader for Contract No. HY/2013/01 on 22 January 2018; verified by the IEC on 24 January 2018; and submitted to EPD on 30 January 2018, and the AQM has been carrying out at AMS7B with EPD’s consent since 6 February 2018.  

2.4          Monitoring Parameters, Frequency and Duration

2.4.1      The monitoring parameters, frequency and duration are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.5          Monitoring Methodology

2.5.1      The monitoring methodology are detailed in the monthly EM&A Reports prepared by Contract Nos. HY/2011/03 and HY/2013/04.

2.6          Monitoring Schedule for the Reporting Month

2.6.1      The schedule for air quality monitoring in October 2018 are referred to the monthly EM&A report prepared by Contracts Nos. HY/2011/03 and HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion) respectively.

2.7          Monitoring Results

2.7.1      The monitoring results for AMS6 and AMS7B are reported in the monthly EM&A Reports prepared for Contract Nos. HY/2011/03 and HY/2013/04, respectively.

2.7.2      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.

2.7.3      There was no Action and Limit Level exceedance of 1-hr TSP level and 24-hr TSP level recorded at AMS7B recorded by the ET of Contract No. HY/2013/04 during the reporting period.

2.7.4      The event and action plan is provided in Appendix H.

 

3        Noise Monitoring

3.1          Monitoring Requirements

3.1.1      The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.1.2      The Action and Limit Level for the noise monitoring is provided in Table 3.1.

Table 3.1         Action and Limit Levels for Noise during Construction Period

Monitoring Station

Time Period

Action Level

Limit Level

NMS2

0700-1900 hours on normal weekdays

When one documented complaint is received.

75 dB(A)

NMS3C(i)

70/65 dB(A)*

Remark:

* Limit Level for schools will be applied for NMS3C. Daytime noise Limit Level of 70 dB(A) applies to education institutions, while 65 dB(A) applies during the school examination period.

(i) Noise monitoring at NMS3C has been undertaking by the ET for Contract No. HY/2013/04 since 20 August 2018.

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

3.2          Monitoring Equipment

3.2.1      The monitoring equipment are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.3          Monitoring Locations

3.3.1      Monitoring location NMS2 was set up at the proposed locations in accordance with Contract Specific EM&A Manual. However, for monitoring location NMS3 (Ho Yu College), as proposed in the Contract Specific EM&A Manual, approval for carrying out impact monitoring could not be obtained from the principal of school. Permission on setting up and carry out impact monitoring works at nearby sensitive receivers, like Caribbean Coast and Coastal Skyline, was also sought. However, approvals for carrying out impact monitoring works within their premises were not obtained. Impact noise monitoring was conducted at site boundary of the site office area in Work Area WA2 (NMS3B) respectively. The noise monitoring station at NMS3B has been relocated and renamed as NMS3C and is covered by Contract No. HY/2013/04. Same baseline noise level (as derived from the baseline monitoring data recorded at Ho Yu College) and Limit Level were adopted for this alternative noise monitoring location.

3.3.2      The noise monitoring works for the Contract are covered by Contract No. HY/2013/04 Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion). The ET of the Contract or another ET of the HZMB project is required to conduct impact noise monitoring at NMS2 and NMS3B as part of EM&A programme if these noise monitoring stations are no longer covered under Contract No. HY/2013/04.

3.3.3      Figure 2.1 shows the locations of noise monitoring stations. Table 3.2 describes the details of monitoring stations.

Table 3.2         Construction Noise Monitoring Locations

ID

Location Description

NMS2(1)

Seaview Crescent

NMS3C(1) (2) (3)

Ying Tung Estate Refuse Collection Point

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 the latest notification from ENPO when the monitoring station(s) is/are no longer covered by another ET of the HZMB project.

(2)        Limit Level for schools will be applied for NMS3C. Day time noise Limit Level of 70 dB(A) applies to education institutions, while 65 dB(A) applies during the school examination period.

(3)       Noise Monitoring at NMS3C has been undertaking by the ET for Contract No. HY/2013/04 since 20 August 2018.

3.4          Monitoring Parameters, Frequency and Duration

3.4.1      The monitoring parameters, frequency and duration are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.5          Monitoring Methodology

3.5.1      The monitoring methodology are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

3.6          Monitoring Schedule for the Reporting Month

3.6.1      The schedule for construction noise monitoring in October 2018 are referred to the monthly EM&A report prepared by Contract No. HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion).

3.7          Monitoring Results

3.7.1      The monitoring results for NMS2 and NMS3B are reported in the monthly EM&A Reports prepared for Contract No. HY/2013/04. No noise exceedances were recorded at stations NMS2 and NMS3B by the ET of Contract No. HY/2013/04 during the reporting period.

 

4           Water Quality Monitoring

4.1          Monitoring Requirements

4.1.1      The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

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

4.1.3      Table 4.1 shows the established Action and Limit Levels for the environmental monitoring works.

Table 4.1         Action and Limit Levels for Water Quality

Parameters

Action Level

Limit Level

DO in mg L-1

(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-1 (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 4.2 mg/L and
           3.6 mg/L respectively.

4.2          Monitoring Equipment

4.2.1      The monitoring equipment are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

 

4.3          Monitoring Parameters, Frequency and Duration

4.3.1      The monitoring parameters, frequency and duration are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

 

4.4          Monitoring Location

4.4.1      In accordance with the Contract Specific EM&A Manual, a total of twenty-one stations (nine Impact Stations, seven Sensitive Receiver Stations and five Control/Far Field Stations) were designated for impact water quality monitoring. The nine Impact Stations (IS) were chosen on the basis of their proximity to the reclamation and thus the greatest potential for water quality impacts, the seven Sensitive Receiver Stations (SR) were chosen as they are close to the key sensitive receives and the five Control/ Far Field Stations (CS) were chosen to facilitate comparison of the water quality of the IS stations with less influence by the Project/ ambient water quality conditions

4.4.2      The water quality monitoring stations at CS(Mf)3 (Coordinate: 809989E, 821117N), IS10 (Coordinate: 812577E, 820670N) and SR5 (811489E, 820455N) have been occupied by the marine work of a designated project - Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project). The alternative water quality monitoring station at CS(Mf)3(N) (Coordinate: 808814E, 822355N), IS10(N) (Coordinate: 812942E, 820881N) and SR5(N) (812569E, 8201475N) were justified and verified by the ET Leader for Contract No. HY/2010/02 and the IEC respectively on 24 March 2017 and it was approved by EPD on 12 May 2017.

4.4.3      The water quality monitoring stations at SR3, SR10A and SR10B(N) were not available for water sampling due to safety reason, thus, monitoring stations were changed to SR3(N) (Coordinate: 810689E, 816591N); SR10A(N) (Coordinate: 823644E, 823484N) and SR10B(N2) (Coordinate:823689E, 823159N) were justified by the ET Leader on 8 November 2017 and the IEC verified on 13 November 2017; and submitted to EPD on 29 November 2017 and it was approved by EPD on 22 December 2017.

4.4.4      The ET of the Contract or another ET of the HZMB project is required to conduct water quality monitoring at these stations as part of EM&A programme if these monitoring stations are no longer covered under Contract No. HY/2013/04.

 

4.4.5      Table 4.2 and Figure 4.1 shows the locations of water quality monitoring stations.

Table 4.2         Impact Water Quality Monitoring Stations

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(N) ^

Sensitive receivers (San Tau SSSI)

810689

816591

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(N) ^

Sensitive receivers (Ma Wan FCZ) 1

823644

823484

SR10B(N2) ^

Sensitive receivers (Ma Wan FCZ) 2

823689

823159

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

Control Station

818103

823064

 

Remarks:
*Alternative water quality monitoring stations at CS(Mf)3(N), SR5(N) and IS10(N) were justified and verified by the ET Leader for Contract No. HY/2010/02 and the IEC respectively on 24 March 2017 and it was approved by EPD on 12 May 2017.

^ Alternative water quality monitoring stations at SR3, SR10A and SR10B(N) were justified by the ET Leader on 8 November 2017 and verified by IEC on 13 November 2017; and submitted to EPD on 29 November 2017 and it was approved by EPD on 22 December 2017.

 

4.5          Monitoring Methodology

4.5.1      The monitoring methodology are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

4.6          Monitoring Schedule for the Reporting Month

4.6.1      The schedule for water quality monitoring in October 2018 are referred to the monthly EM&A report prepared by Contract No. HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion).

4.7          Monitoring Result

4.7.1      The monitoring results for the monitoring stations are reported in the monthly EM&A Reports prepared for Contract No. HY/2013/04.

4.7.2      No Action Level and Limit Level exceedance of dissolved oxygen were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the report period.

4.7.3      One Action Level exceedance of turbidity was recorded at mid-ebb tide on 24 October 2018 by the ET of Contract No. HY/2013/04 during the report period. No Action Level exceedances of turbidity were recorded at mid-flood tide and no Limit Level exceedances of turbidity by the ET of Contract No. HY/2013/04 during the report period.

4.7.4      One Action Level exceedance of suspended solid was recorded at mid-flood tide on 10 October 2018 by the ET of Contract No. HY/2013/04 during the report period. No Action Level exceedances of suspended solid were recorded at mid-ebb tide and no Limit Level exceedances of suspended solid during the reporting month by the ET of Contract No. HY/2013/04 during the report period.

4.7.5      The event and action plan is provided in Appendix H.

5        Dolphins Monitoring

5.1          Monitoring Requirement

5.1.1      The monitoring requirements are detailed in the monthly EM&A Reports prepared by Contract No. HY/2013/04.

5.1.2      The Action and Limit Level for dolphin monitoring are provided in Table 5.1 and 5.2 respectively.

Table 5.1        Action and Limit Levels for Chinese White Dolphin Monitoring - Approach to Define Action Level (AL) and Limit Level (LL)

North Lantau Social Cluster

Northeast Lantau (NEL)

Northwest Lantau (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)]

Remarks:

1.    STG means no. of on-effort dolphin sightings per 100 km of survey effort

2.     ANI means no. of dolphins from all on-effort sightings per 100 km of survey effort

3.     For North Lantau Social Cluster, AL will be trigger if either NEL or NWL fall below the criteria; LL will be triggered if both NEL and NWL fall below the criteria. 

Table 5.2        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)]

 

5.1.3      The event and action plan is provided in Appendix H.

5.2          Monitoring Methodology and Location

5.2.1      The dolphin monitoring works for the Contract are covered by Contract No. HY/2013/04 Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion). The ET of the Contract or another ET of the HZMB project is required to conduct dolphin monitoring at the twenty-four transects as part of EM&A programme if these transects are no longer covered under Contract No. HY/2013/04. 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. The change of transect lines 2, 3, 4, 5, 6 and 7 and new vessel-based transect line 24 for dolphin monitoring have been proposed due to the marine work of a designated project - Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project). It was justified and verified by the ET Leader for Contract No. HY/2010/02 and the IEC respectively on 24 March 2017 and it was approved by EPD on 12 May 2017. Figure 5.1 shows the for the layout map transect lines. 

5.2.2      The co-ordinates for the transect lines and a layout map showing the transect lines have been provided by AFCD and are shown in Table 5.3.

Table 5.3           Impact Dolphin Monitoring Transect Line Co-ordinates 

Transect Line No.

HK Grid System

Easting

Northing

1(#)

804671

815456

804671

831404

2(#)

805476

820800

805476

826654

3

806464

821150

806464

822911

4

807518

821500

807518

829230

5

808504

821850

808504

828602

6

809490

822150

809490

825352

7(#)

810499

822000

810499

824613

8(#)

811508

821123

811508

824254

9(#)

812516

821303

812516

824254

10*

813525

820827

813525

824657

11#

814556

818853

814556

820992

12

815542

818807

815542

824882

13

816506

819480

816506

824859

14

817537

820220

817537

824613

15

818568

820735

818568

824433

16

819532

821420

819532

824209

17

820451

822125

820451

823671

18

821504

822371

821504

823761

19

822513

823268

822513

824321

20

823477

823402

823477

824613

21

805476

827081

805476

830562

22

806464

824033

806464

829598

23

814559

821739

814559

824768

24

805476

815900

805476

819100

Remarks:

(a)    * Due to the presence of deployed silt curtain systems at the site boundaries of the Contract, some of the transect lines could not be fully surveyed during the regular survey. Transect 10 is reduced from 6.4km to approximately 3.6km in length due to the HKBCF construction site. Therefore, the total transect length for both NEL and NWL combined is reduced to approximately 108km.

(b)    # Coordinates for transect lines 1, 8, 9 and 11 have been updated in respect to the Proposal for Alteration of Transect Line for Dolphin Monitoring approved by EPD on 19 August 2015.

(c)    Due to marine work of the Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project), original transect lines of dolphin monitoring 2, 3, 4, 5, 6 and 7 are enclosed by works boundary of 3RS Project. Alternative dolphin monitoring transect lines 2, 3, 4, 5, 6, 7 and 24 are adopted starting from 17 May 2017 to replace the original transect lines.

(d)    The change of transect lines 2, 3, 4, 5, 6 and 7 and new vessel-based transect line 24 for dolphin monitoring have been proposed due to the marine work of a designated project - Expansion of Hong Kong International Airport into a Three-Runway System (3RS Project). It was justified and verified by the ET Leader for Contract No. HY/2010/02 and the IEC respectively on 24 March 2017 and it was approved by EPD on 12 May 2017.

 

5.3          Monitoring Schedule for the Reporting Month

5.3.1      The schedule for dolphin monitoring in October 2018 are referred to the monthly EM&A report prepared by Contract No. HY/2013/04 – Hong Kong-Zhuhai-Macao Bridge HKBCF - Infrastructure Works Stage II (Southern Portion).

5.4          Monitoring Result

5.4.1      Impact dolphin monitoring results at all transects in October 2018 are reported in the EM&A Reports prepared for Contract No. HY/2013/04.

 

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 and mitigation measures for the Contract No. HY/2013/01 (includes the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area). During the reporting period, site inspections were carried out on 5, 10, 18, 24 and 31 October 2018.

6.1.2      Particular observations for Contract No. HY/2013/01 and Contract No. HY/2013/06 within Contract No. HY/2013/01 works area during the site inspections and corrective actions undertaken by the Contractor are described in Table 6.1 and Table 6.2.

Table 6.1         Summary of Environmental Site Inspections for Contract No. HY/2013/01

Date of Audit

Observations

Actions Taken by Contractor / Recommendation

Date of Observations Closed

26 September 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

5 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

 

Nil.

10 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

 

Nil.

18 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

24 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

31 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

 

Table 6.2        Summary of Environmental Site Inspections for Contract No. HY/2013/06 within Contract No. HY/2013/01 works area

Date of Audit

Observations

Actions Taken by Contractor / Recommendation

Date of Observations Closed

26 September 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

5 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

10 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

18 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

24 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

31 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

    

 

6.1.3      Particular observations (Landscape works) for Contract No. HY/2013/01 during the site inspections and corrective actions undertaken by the Contractor are described in Table 6.3. The landscape work for Contract No. HY/2013/01 was commenced on 1 March 2018. The implementation of mitigation measures for landscape and visual resources recommended in the EIA Report were monitored during the reporting period. Landscape and visual mitigation measures in accordance with the EP, EIA and EM&A Manual were implemented by the Contractor.

Table 6.3        Summary of Environmental Site Inspections (Landscape works) for Contract No. HY/2013/01 works area

Date of Audit

Observations

Actions Taken by Contractor / Recommendation

Date of Observations Closed

5 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

18 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

31 October 2018

No particular environmental issue was recorded during the site inspection.

Nil.

Nil.

 

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      No marine sediment was generated in the reporting month. As informed by the Contractor in May 2016, the transfer of treated marine sediment to Contract no. HY/2010/02 has been discontinued since July 2015.

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

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

 

6.3          Environmental Licenses and Permits

6.3.1      The valid environmental licenses and permits for Contract No. HY/2013/01 during the reporting period are summarized in Appendix J.

6.3.2     As confirmed the contractor (Contract No. HY/2013/01), all chemical waste from Contract No. HY/2013/06 should be disposed through Contractor of Contract No. HY/2013/01 within Contract No. HY/2013/01 site area. Contract No. HY/2013/06 with valid Disposal of Construction Waste Billing Account during the reporting period are summarized in Appendix J.

6.4          Implementation Status of Environmental Mitigation Measures

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

6.4.2      All exposed site area has been paved expect planting area, thus, watering of exposed spoil was not required during reporting month. 

6.4.3      The marine traffic records and geographical plots of all the vessels tracks will be submitted by the Contractor to ER, ETL and IEC/ENPO within 3 weeks after the reporting month. As informed by Contractor, there was no marine transportation since 30 January 2018.

6.4.4      Regarding the implementation of dolphin monitoring and protection measures (i.e. implementation of Dolphin Watching Plan, Dolphin Exclusion Zone and Silt Curtain integrity check), regular checking were conducted by the dolphin watcher(s) / dolphin observer(s) within the works area to ensure no dolphin was trapped by the enclosed silt curtain systems. No dolphin spotted within the enclosed silt curtain systems was reported and recorded during the reporting period. Silt curtain systems were also inspected timely in accordance to the submitted plan. All inspection records were kept properly.

6.4.5      Training was provided for barge operators in accordance with the Regular Marine Travel Routes Plan and relevant records were kept properly.

6.4.6      A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix K. Most of the necessary mitigation measures were implemented properly.

6.5          Summary of Exceedance of the Environmental Quality Performance Limit

6.5.1      For air quality monitoring, summary of Action and Limit Level exceedance of 1-hour TSP level and 24-hour TSP level at AMS6 are referred to the monthly EM&A report prepared by Contract No. HY/2011/03. No Action and Limit level exceedance of 1-hr TSP level and 24-hr TSP level recorded AMS7B by the Environmental Team of Contract No. HY/2013/04 during the reporting period.  

6.5.2      For construction noise, no Action and Limit Level exceedance for noise recorded NMS2 and NMS3C by the ET of Contract No. HY/2013/04 during the report period.

6.5.3      For water quality monitoring, no Action Level and Limit Level exceedance of dissolved oxygen were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the report period.

6.5.4      One Action Level exceedance of turbidity was recorded at mid-ebb tide on 24 October 2018 by the ET of Contract No. HY/2013/04 during the report period. No Action Level exceedances of turbidity were recorded at mid-flood tide and no Limit Level exceedances of turbidity by the ET of Contract No. HY/2013/04 during the report period.

6.5.5      One Action Level exceedance of suspended solid was recorded at mid-flood tide on 10 October 2018 by the ET of Contract No. HY/2013/04 during the report period. No Action Level exceedances of suspended solid were recorded at mid-ebb tide and no Limit Level exceedances of suspended solid during the reporting month by the ET of Contract No. HY/2013/04 during the report period.

6.5.6      As confirmed by the Contractor, no marine transportation and marine-based work was conducted during the reporting month. Therefore, it is concluded that the exceedances were not related the Contract.

6.5.7      Impact dolphin monitoring results in October 2018 at all transects are reported in the EM&A Reports prepared for Contract No. HY/2013/04

6.6          Summary of Complaints, Notification of Summons and Successful Prosecution

6.6.1      There was no complaint received in relation to the environmental impact during the reporting period. The details of cumulative statistics of Environmental Complaints are provide in Appendix L.

6.6.2      No notification of summons and prosecution was received during the reporting period.

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

7        Future Key Issues

7.1          Construction Programme for the Coming Months

7.1.1      As informed by the Contractor, the construction has been completed.

7.2          Environmental Site Inspection and Monitoring Schedule for the Coming Month

7.2.1      No weekly site inspection will be scheduled for the coming month.

7.2.2      The tentative schedule for environmental monitoring of November 2018 are detailed in the monthly EM&A Report prepared by Contract No. HY/2013/04.


8        Conclusions

8.1          Conclusions

8.1.1      The site preparation work of the Contract started on 26 September 2014 and the construction works of the Contract commenced on 6 October 2014. The construction works of the Contract No. HY/2013/06 within Contractor No. HY/2013/01 works area commenced on 20 February 2018. The forty-ninth Monthly EM&A Report summarizes findings of the EM&A works during the reporting period from 1 to 31 October 2018 (included the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area). The works area in Hong Kong-Zhuhai-Macao Bridge was handed over to the owner since 24 October 2018.

8.1.2      For air quality monitoring, summary of Action and Limit Level exceedance of 1-hour TSP level and 24-hour TSP level at AMS6 are referred to the monthly EM&A report prepared by Contract No. HY/2011/03. No Action and Limit level exceedance of 1-hr TSP level and 24-hr TSP level recorded AMS7B by the Environmental Team of Contract No. HY/2013/04 during the reporting period.

8.1.3      For construction noise, no Action and Limit Level exceedance for noise recorded NMS2 and NMS3C by the ET of Contract No. HY/2013/04 during the report period.

8.1.4      For water quality monitoring, no Action Level and Limit Level exceedance of dissolved oxygen were recorded at mid-ebb tide and mid-flood tide by the ET of Contract No. HY/2013/04 during the report period. One Action Level exceedance of turbidity was recorded at mid-ebb tide on 24 October 2018 by the ET of Contract No. HY/2013/04 during the report period. No Action Level exceedances of turbidity were recorded at mid-flood tide and no Limit Level exceedances of turbidity by the ET of Contract No. HY/2013/04 during the report period. One Action Level exceedance of suspended solid was recorded at mid-flood tide on 10 October 2018 by the ET of Contract No. HY/2013/04 during the report period. No Action Level exceedances of suspended solid were recorded at mid-ebb tide and no Limit Level exceedances of suspended solid during the reporting month by the ET of Contract No. HY/2013/04 during the report period.

8.1.5      Impact dolphin monitoring results at all transects in October 2018 are reported in the EM&A Reports prepared for Contract No. HY/2013/04.

8.1.6      Environmental site inspections were carried out on 5, 10, 18, 24 and 31 October 2018 for the Contract No. HY/2013/01 (includes the construction works of Contract No. HY/2013/06 within Contract No. HY/2013/01 works area). Recommendations on remedial actions were given to the Contractor for the deficiencies identified during the site inspections.

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

8.1.8      No notification of summons and successful prosecution was received during the reporting period.