table of Contents

                        Executive Summary                                                              

1                      Introduction                                                                           

1.1                   Background                                                                            

1.2                   Scope of Report                                                                    

1.3                   Organization Structure                                                   

1.4                   Summary of Construction Works                                

2                      EM&A Results                                                                          

2.1                   Air quality                                                                               

2.2                   Dolphin Monitoring                                                              

2.3                   EM&A Site Inspection                                                           

2.4                   Waste Management Status                                              

2.5                   Environmental Licenses and Permits                         

2.6                   Implementation Status of Environmental Mitigation Measures   

2.7                   Summary of Exceedances of the Environmental Quality Performance Limit                                                                                             

2.8                   Summary of Complaints, Notification of Summons and Successful Prosecutions                                                                          

3                      Future Key Issues                                                                 

3.1                   Construction Activities for the Coming Month     

3.2                   Key Issues for the Coming Month                                 

3.3                   Monitoring Schedule for the Coming Month          

4                      Conclusions and recommendations                           

4.1                   Conclusions                                                                            

 

                                          

Appendix A                         Project Organization for Environmental Works

Appendix B                         Construction Programme

Appendix C                         Environmental Mitigation And Enhancement Measure Implementation Schedules (EMIS)

Appendix D                         Summary of Action And Limit Levels

Appendix E                         Copies of Calibration Certificate for Air Quality Monitoring

Appendix F                         EM&A Monitoring Schedules

Appendix G                        Impact Air Quality Monitoring Results

Appendix H                         Meteorological Data

Appendix I                          Impact Dolphin Monitoring Survey

Appendix J                         Event And Action Plan

Appendix K                        Cumulative Statistics On Exceedance,     Complaints, Notifications of Summons and Successful Prosecutions

Appendix L                         Waste Flow Table

 

Executive Summary

Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of the Tuen Mun – Chek Lap Kok Link Project (TM-CLK Link Project) while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer.  For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET) in accordance with Environmental Permit No. EP-354/2009/A.  Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).  Subsequent applications for variation of environmental permits (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.  

The construction phase of the Project commenced on 1 November 2013 and will tentatively be completed by the end of 2019.  The impact monitoring of the EM&A programme, including air quality, water quality, marine ecological monitoring and environmental site inspections, were commenced on 1 November 2013.

This is the Fifty-eighth Monthly EM&A report presenting the EM&A works carried out during the period from 1 to 31 August 2018 for the Contract No. HY/2012/08 Northern Connection Sub-sea Tunnel Section (the “Project”) in accordance with the Updated EM&A Manual of the TM-CLK Link Project.  As informed by the Contractor, major activities in the reporting period included:

 

Land-based Works

·       Construction of Cross Passage Tympanum – TBM tunnel;

·       Cross Passage Lining Installation – TBM Tunnel;

·       Cross Passage Construction by Pipe Jacking – TBM Tunnel;

·       Corbel & OVHD Construction – TBM Tunnel;

·       Parapet wall and fireboard Installation – TBM Tunnel;

·       Bulk Excavation – Portion N-A; and

·       CSM treatment, Jet Grouting works and D-wall Construction – Portion S-A

There was no dredging, reclamation or marine sheet piling works in open waters during this reporting period.


A summary of monitoring and audit activities conducted in the reporting period is listed below:

24-hour TSP Monitoring                       10 sessions

1-hour TSP Monitoring                                  10 sessions

Impact Dolphin Monitoring                   2 sessions

Joint Environmental Site Inspection     5 sessions

Implementation of Marine Mammal Exclusion Zone

There was no dredging, reclamation or marine sheet piling works in open waters during this reporting period.  Thus, Passive Acoustic Monitoring (PAM) and the day-time monitoring of Dolphin Exclusion Zone (DEZ) by dolphin observers were not in effect during the reporting period.

Summary of Breaches of Action/Limit Levels

Breaches of Action and Limit Levels for Air Quality

One (1) Action Level exceedance of 1-hour TSP was recorded on 26 August 2018.  One (1) Action Level exceedance of 1-hour TSP was recorded on 29 August 2018.  Investigation reports are provided in Appendix K.

Breaches of Action and Limit Levels for Dolphin Monitoring

Whilst one (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June 2018 and August 2018, no unacceptable impact from the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section on Chinese White Dolphins was noticeable from general observations.  Due to monthly variation in dolphin occurrence within the study area, it would be more appropriate to draw conclusion on whether any impacts on dolphins have been detected related to the construction activities of the TM-CLKL Northern Connection Sub-sea Tunnel Section in the quarterly EM&A reports, where comparison on distribution, group size and encounter rates of dolphins between the quarterly impact monitoring period and baseline monitoring period will be made.

Environmental Complaints, Non-compliance & Summons

No non-compliance with EIA recommendations, EP conditions and other requirements associated with the construction of this Contract was recorded in this reporting period.

No environmental complaint was received in this reporting period.

No environmental summons was received in this reporting period.

Reporting Change

There was no reporting change required in the reporting period.

Upcoming Works for the Next Reporting Month

Works to be undertaken in the next monitoring period of September 2018 include the following:

 

Land-based Works

·       Construction of Cross Passage Tympanum – TBM tunnel;

·       Cross Passage Construction by Pipe Jacking – TBM tunnel;

·       Cross Passage Lining Installation – TBM Tunnel;

·       Parapet wall and fireboard Installation – TBM Tunnel

·       Corbel & OVHD Construction – TBM Tunnel;

·       Bulk Excavation – Portion S-A; and

·       D-wall Construction – Portion S-A

 

There will be no dredging, reclamation or marine sheet piling works in open waters during next reporting period.

Future Key Issue

Potential environmental impacts arising from the above upcoming construction activities in the next reporting month of September 2018 are mainly associated with dust, marine ecology and waste management issues.

1                             Introduction

1.1                         Background

According to the findings of the Northwest New Territories (NWNT) Traffic and Infrastructure Review conducted by the Transport Department, Tuen Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be operating beyond capacity after 2016.  This forecast has been based on the estimated increase in cross boundary traffic, developments in the Northwest New Territories (NWNT), and possible developments in North Lantau, including the Airport developments, the Lantau Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB).  In order to cope with the anticipated traffic demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.

An Environmental Impact Assessment (EIA) of TM-CLKL (the Project) was prepared in accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical Memorandum of the Environmental Impact Assessment Process (EIAO-TM).  The EIA Report was submitted under the Environmental Impact Assessment Ordinance (EIAO) in August 2009.  Subsequent to the approval of the EIA Report (EIAO Register Number AEIAR-146/2009), an Environmental Permit (EP-354/2009) for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4 November 2009, and EP variation (VEP) (EP-354/2009/A) was issued on 8 December 2010.  Subsequent applications for variation of environmental permits (VEPs), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014 and 13 March 2015, respectively.

Under Contract No. HY/2012/08, Dragages – Bouygues Joint Venture (DBJV) is commissioned by the Highways Department (HyD) to undertake the design and construction of the Northern Connection Sub-sea Tunnel Section of TM-CLKL while AECOM Asia Company Limited was appointed by HyD as the Supervising Officer.  For implementation of the environmental monitoring and audit (EM&A) programme under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET).  Ramboll Hong Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC) and Environmental Project Office (ENPO).

Layout of the Contract components is presented in Figure 1.1.

The construction phase of the Contract commenced on 1 November 2013 and will tentatively be completed by the end of 2019.  The impact monitoring phase of the EM&A programme, including air quality, water quality, marine ecological monitoring and environmental site inspections, were commenced on 1 November 2013.

 

1.2                         Scope of Report

This is the Fifty-eighth Monthly EM&A Report under the Contract No. HY/2012/08 Tuen Mun – Chek Lap Kok Link – Northern Connection Sub-sea Tunnel Section.  This report presents a summary of the environmental monitoring and audit works in August 2018.

1.3                         Organization Structure

The organization structure of the Contract is shown in Appendix A.  The key personnel contact names and contact details are summarized in Table 1.1 below.

Table 1.1        Contact Information of Key Personnel

Party

Position

Name

Telephone

Fax

Highways Department

 

Engr 22/HZMB

Chow Man Lung, Andrew

2762 4110

2762 4110

SOR

(AECOM Asia Company Limited)

 

Chief Resident Engineer

Roger Man

 

Andrew Westmoreland

 

2293 6388

 

2293 6360

2293 6300

 

2293 6300

ENPO / IEC

(Ramboll Hong Kong Ltd.)

ENPO Leader

 

Y.H. Hui

3465 2850

3465 2899

IEC

 

Dr. F.C. Tsang

3465 2851

3465 2899

Contractor

(Dragages – Bouygues Joint Venture)

Deputy Environmental Manager

Bryan Lee

 

2293 7323

 

2293 7499

 

Senior Environmental Officer

Ashley Au

52950766

 

 

24-hour hotline

 

 

2293 7330

 

ET (ERM-HK)

ET Leader

Jasmine Ng

2271 3311

2723 5660

1.4                         Summary of Construction Works

The construction phase of this Contract was commenced on 1 November 2013.  The construction programme is shown in Appendix B.

As per DBJV’s information, details of major construction works carried out in this reporting period are summarized in Table 1.2.

The general layout plan of the site showing the detailed works areas is shown in Figure 1.2.  The Environmental Sensitive Receivers in the vicinity of the Project are shown in Figure 1.3.

The implementation schedule of environmental mitigation measures is presented in Appendix C.

 

Table 1.2      Summary of Construction Activities Undertaken during the Reporting Period

Construction Activities Undertaken

Land-based Works

·         Construction of Cross Passage Tympanum – TBM tunnel;

·         Cross Passage Lining Installation – TBM Tunnel;

·         Cross Passage Construction by Pipe Jacking – TBM Tunnel;

·         Corbel & OVHD Construction – TBM Tunnel;

·         Parapet wall and fireboard Installation – TBM Tunnel;

·         Bulk Excavation – Portion N-A; and

·         CSM treatment, Jet Grouting works and D-wall Construction – Portion S-A

Figure 1.2    Locations of Construction Activities – August 2018

 

2                             EM&A Results

The EM&A programme required environmental monitoring for air quality, water quality and marine ecology as well as environmental site inspections for air quality, noise, water quality, waste management, marine ecology and landscape and visual impacts.  The EM&A requirements and related findings for each component are summarized in the following sections

2.1                         Air quality

2.1.1                     Monitoring Requirements and Equipment

In accordance with the Updated EM&A Manual and the Enhanced TSP Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3) times every six (6) days and impact 24-hour TSP monitoring was carried out once every six (6) days when the highest dust impact was expected.  1-hr and 24-hr TSP monitoring frequency was increased to three times per day every three days and daily every three days, respectively, as excavation works for launching shaft commenced on 24 October 2014.

High volume samplers (HVSs) were used to carry out the 1-hour and 24-hour TSP monitoring on 2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 August 2018 at the five (5) air quality monitoring stations in accordance with the requirements stipulated in the Updated EM&A Manual (Figure 2.1; Table 2.1).  Wind meter was installed at the rooftop of ASR5 for logging wind speed and wind direction.  Details of the equipment deployed are provided in Table 2.2.  Copies of the calibration certificates for the equipment are presented in Appendix E.

Table 2.1        Locations of Impact Air Quality Monitoring Stations and Monitoring Dates in this Reporting Period

Monitoring Station

Monitoring Dates

Location

Description

Parameters & Frequency

ASR1

2, 5, 8, 11, 14, 17, 20, 23, 26 and 29 August 2018

Tuen Mun Fireboat Station

 

Office

TSP monitoring

Ÿ  1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 6 days

Ÿ  24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in every 6 days

Enhanced TSP monitoring (commenced on 24 October 2014)

Ÿ  1-hour Total Suspended Particulates (1-hour TSP, µg/m3), 3 times in every 3 days

Ÿ  24-hour Total Suspended Particulates (24-hour TSP, µg/m3), daily for 24-hour in every 3 days

ASR5

 

Pillar Point Fire Station

 

Office

AQMS1

 

Previous River Trade Golf

 

Bare ground

ASR6

 

Butterfly Beach Laundry

 

Office

ASR10

 

Butterfly Beach Park

Recreational uses


Table 2.2      Air Quality Monitoring Equipment

Equipment

Brand and Model

High Volume Sampler
(1-hour TSP and 24-hour TSP)

Tisch Environmental Mass Flow Controlled Total Suspended Particulate (TSP) High Volume Sampler (Model No. TE-5170)

Wind Meter

Davis (Model: Vantage Pro 2 (S/N: AS160104014)

Wind Anemometer for calibration

Lutron (Model No. AM-4201)

2.1.2                     Action & Limit Levels

The Action and Limit Levels of the air quality monitoring is provided in Appendix D.  The Event and Action plan is presented in Appendix J.

2.1.3                     Monitoring Schedule for the Reporting Month

The schedule for air quality monitoring in August 2018 is provided in Appendix F.

2.1.4                     Results and Observations

The monitoring results for 1-hour TSP and 24-hour TSP are summarized in Tables 2.3 and 2.4, respectively.  Detailed impact air quality monitoring results and graphical presentations are presented in Appendix G. 

Table 2.3        Summary of 1-hour TSP Monitoring Results in this Reporting Period

Station

Average (µg/m3)

Range (µg/m3)

Action Level  (µg/m3)

Limit Level  (µg/m3)

ASR1

134

15 – 417

331

500

ASR5

140

46 - 327

340

500

AQMS1

81

23 – 159

335

500

ASR6

100

23 – 217

338

500

ASR10

67

13 – 142

337

500

Table 2.4        Summary of 24-hour TSP Monitoring Results in this Reporting Period

Station

Average (µg/m3)

Range (µg/m3)

Action Level  (µg/m3)

Limit Level  (µg/m3)

ASR1

68

37 - 112

213

260

ASR5

65

31 - 102

238

260

AQMS1

42

19 - 66

213

260

ASR6

49

19 - 76

238

260

ASR10

38

19 - 57

214

260

The weather condition during the monitoring period varied from sunny to cloudy.  The major dust sources in the reporting period included construction activities under the Contract as well as nearby traffic emissions. 

A total of 10 1-hour TSP and 24-hour TSP monitoring were undertaken in which two (2) Action Level exceedance of 1-hour TSP were recorded in this reporting month. 

Meteorological information collected at the ASR5, including wind speed and wind direction, is provided in Appendix H.

2.2                         Water Quality Monitoring

Seawall Enhancement Works at Northern Landfall has been completed on 31 December 2017.  Notification of suspension of water quality monitoring has been approved by EPD on 2 March 2018.

2.3                         Dolphin Monitoring

2.3.1                     Monitoring Requirements

Impact dolphin monitoring is required to be conducted by a qualified dolphin specialist team to evaluate whether there have been any effects on the dolphins.  In order to fulfil the EM&A requirements and make good use of available resources, the on-going impact line transect dolphin monitoring data collected by HyD’s Contract No. HY/2011/03 Hong Kong-Zhuhai-Macao Bridge. Hong Kong Link Road - Section between Scenic Hill and Hong Kong Boundary Crossing Facilities on the monthly basis is adopted to avoid duplicates of survey effort.

2.3.2                     Monitoring Equipment

Table 2.5 summarises the equipment used for the impact dolphin monitoring.

 

Table 2.5        Dolphin Monitoring Equipment

Equipment

Model

Global Positioning System (GPS)

 

Garmin 18X-PC

Geo One Phottix

 

Camera

Nikon D90 300m 2.8D fixed focus

Nikon D90 20-300m zoom lens

 

Laser Binocular

Infinitor LRF 1000

 

Marine Binocular

Bushell 7 x 50 marine binocular with compass and reticules

 

Vessel for Monitoring

65 foot single engine motor vessel with viewing platform 4.5m above water level

 

2.3.3                     Monitoring Parameter, Frequencies & Duration

Dolphin monitoring should cover all transect lines in Northeast Lantau (NEL) and the Northwest Lantau (NWL) survey areas twice per month throughout the entire construction period.  The monitoring data should be compatible with, and should be made available for, long-term studies of small cetacean ecology in Hong Kong.  In order to provide a suitable long-term dataset for comparison, identical methodology and line transects employed in baseline dolphin monitoring was followed in the impact dolphin monitoring.

2.3.4                     Monitoring Location

The impact dolphin monitoring was carried out in the NEL and NWL along the line transect as depicted in Figure 2.2.  The co-ordinates of all transect lines are shown in Table 2.6 below.


Table 2.6        Impact Dolphin Monitoring Line Transect Co-ordinates

Line No.

Easting

Northing

Line No.

Easting

Northing

1

Start Point

804671

815456

13

Start Point

816506

819480

1

End Point

804671

831404

13

End Point

816506

824859

2

Start Point

805476

820800*

14

Start Point

817537

820220

2

End Point

805476

826654

14

End Point

817537

824613

3

Start Point

806464

821150*

15

Start Point

818568

820735

3

End Point

806464

822911

15

End Point

818568

824433

4

Start Point

807518

821500*

16

Start Point

819532

821420

4

End Point

807518

829230

16

End Point

819532

824209

5

Start Point

808504

821850*

17

Start Point

820451

822125

5

End Point

808504

828602

17

End Point

820451

823671

6

Start Point

809490

822150*

18

Start Point

821504

822371

6

End Point

809490

825352

18

End Point

821504

823761

7

Start Point

810499

822000*

19

Start Point

822513

823268

7

End Point

810499

824613

19

End Point

822513

824321

8

Start Point

811508

821123

20

Start Point

823477

823402

8

End Point

811508

824254

20

End Point

823477

824613

9

Start Point

812516

821303

21

Start Point

805476

827081

9

End Point

812516

824254

21

End Point

805476

830562

10

Start Point

813525

821176

22

Start Point

806464

824033

10

End Point

813525

824657

22

End Point

806464

829598

11

Start Point

814556

818853

23

Start Point

814559

821739

11

End Point

814556

820992

23

End Point

814559

824768

12

Start Point

815542

818807

24*

Start Point

805476*

815900*

12

End Point

815542

824882

24*

End Point

805476*

819100*

Remarks: The coordinates of several starting and ending points have been revised due to the presence of a work zone to the north of the airport platform with intense construction activities in association with the construction of the third runway expansion for the Hong Kong International Airport.  Co-ordinates in red and marked with asterisk are revised co-ordinates of transect line.

2.3.5                     Action & Limit Levels

The Action and Limit levels of impact dolphin monitoring are shown in Appendix D.  The Event and Action plan is presented in Appendix J.


2.3.6                     Monitoring Schedule for the Reporting Month

Dolphin monitoring was carried out on 1, 8, 21 and 28 of August 2018.  The dolphin monitoring schedule for the reporting month is shown in Appendix F.

2.3.7                     Results & Observations

A total of 258.01 km of survey effort was collected, with 100% of the total survey effort being conducted under favourable weather conditions (i.e. Beaufort Sea State 3 or below with good visibility) in August 2018.  Among the two areas, 95.60 km and 162.41 km of survey effort were collected from NEL and NWL survey areas, respectively.  The total survey effort conducted on primary and secondary lines were 188.10 km and 69.91 km respectively.  The survey efforts are summarized in Appendix I.

Four group of 6 Chinese White Dolphins sightings were recorded during the two sets of surveys in August 2018.  All four dolphin sightings were made in NWL, while none was sighted in NEL.  Two of the four dolphin sightings were made on primary lines during on-effort search .  All the four groups were not associated with any operating fishing vessel. 

No dolphin sighting was made in the proximity of the TM-CLKL alignment. The distribution of dolphin sightings during the reporting month is shown in Figure 2.3.   

Encounter rates of Chinese White Dolphins are deduced from the survey effort and on-effort sighting data made under favourable conditions (Beaufort 3 or below) in August 2018 with the results present in Tables 2.7 and 2.8.

Table 2.7        Individual Survey Event Encounter Rates

 

Encounter rate (STG)     (no. of on-effort dolphin sightings per 100 km of survey effort)

Encounter rate (ANI)            (no. of dolphins from all on-effort sightings per 100 km of survey effort)

Primary Lines Only

Primary Lines Only

NEL

Set 1: August 1st / 8th

0.0

0.0

Set 2: August 21st / 28th

0.0

0.0

NWL

Set 1: August 1st / 8th

3.4

6.7

Set 2: August 21st / 28th

0.0

0.0

Note: Dolphin Encounter Rates are deduced from the Two Sets of Surveys (Two Surveys in Each Set) in August 2018 in Northeast (NEL) and Northwest Lantau (NWL)

 

 

 

 

 

 

 

Table 2.8        Monthly Average Encounter Rates

 

Encounter rate (STG)        (no. of on-effort dolphin sightings per 100 km of survey effort)

Encounter rate (ANI)            (no. of dolphins from all on-effort sightings per 100 km of survey effort)

Primary   Lines Only

Both Primary and Secondary Lines

Primary   Lines Only

Both Primary and Secondary Lines

Northeast Lantau

0.0

0.0

0.0

0.0

Northwest Lantau

1.7

1.8

3.4

3.1

Note: Overall dolphin encounter rates (sightings per 100 km of survey effort) from all four surveys are conducted in August 2018 on primary lines only as well as both primary lines and secondary lines in Northeast and Northwest Lantau.

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June and August 2018, whilst no unacceptable impact from the construction activities of the TM-CLKL Southern Connection Viaduct Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) was noticeable from general observations.

Due to monthly variation in dolphin occurrence within the survey area, it would be more appropriate to draw conclusion on whether any unacceptable impacts on dolphins have been detected in relation to the construction activities of this Project in the quarterly EM&A reports, where comparison on distribution, group size and encounter rates of dolphins between the quarterly impact monitoring period and baseline monitoring period will be made.

2.3.8                     Implementation of Marine Mammal Exclusion Zone

There was no dredging, reclamation or marine sheet piling works in open waters during this reporting period.  Thus, Passive Acoustic Monitoring (PAM) and the day-time monitoring of Dolphin Exclusion Zone (DEZ) by dolphin observers were not in effect during the reporting period.


2.4                         EM&A Site Inspection

Site inspections were carried out on a weekly basis to monitor the implementation of proper environmental pollution control and mitigation measures under the Contract.  In the reporting month, five (5) site inspections were carried out on 1, 8, 15, 22 and 29 August 2018.

Key observations and recommendations during the site inspections in this reporting period are summarized in Table 2.9.

Table 2.9        Specific Observations and Recommendations during the Weekly Site Inspection in this Reporting Month

Inspection Date

Observations

Recommendations/ Remarks

1 August 2018

Works Area – Portion S-B

Ÿ   Better housekeeping should be maintained on site.

Works Area – Portion N-B

Ÿ   Broken water barriers should be removed.

Works Area – Portion N-A

Ÿ   Drip tray should be provided for the oil drum.

Ÿ   Water spraying should be applied more frequently during dry conditions.

Works Area – Portion S-B

Ÿ   The Contractor was reminded to maintain better housekeeping on site.

Works Area – Portion N-B

Ÿ   The Contractor was reminded to remove the broken water barriers.

Works Area – Portion N-A

Ÿ   The Contractor was reminded to provide drip tray for the oil drum.

Ÿ   The Contractor was reminded to apply water spraying more frequently during dry conditons.

8 August 2018

Works Area – TBM tunnel

Ÿ   Faded NRMM label on the tractor should be replaced.

Works Area – Portion N-A

Ÿ   Stagnant water should be removed.

Works Area - Portion N-A

Ÿ   3-sides tarpaulin shelter should be provided for the storage of cement bags.

Works Area - Portion S-B

Ÿ   Water spraying should be applied more frequently during dry conditions.

Works Area – TBM tunnel

Ÿ   The Contractor was reminded to replace the faded NRMM label on the tractor.

Works Area – Portion N-A

Ÿ   The Contractor was reminded to remove the stagnant water.

Works Area - Portion N-A

Ÿ   The Contractor was reminded to provide 3-sides tarpaulin shelter for the storage of cement bags.

Works Area - Portion S-B

Ÿ   The Contractor was reminded to apply water spraying more frequently during dry conditons.

15 August 2018

Works Area – Portion N-A

Ÿ   Faded NRMM label on the generator should be replaced.

Ÿ   Drip tray should be provided for the oil drums.

Reminder from the SOR

Works Area - Portion S-B

Ÿ   The hammer portion of the breaker should be wrapped with soundproof mat.

Ÿ   Panels of the air compressor should be closed.

Works Area – Portion N-A

Ÿ   The Contractor was reminded to replace the faded NRMM label on the generator.

Ÿ   The Contractor was reminded to provide drip tray for the oil drums.

Reminder from the SOR

Works Area - Portion S-B

Ÿ   The Contractor was reminded to wrap the hammer portion of the breaker.

Ÿ   The Contractor was reminded to close the panels of the air compressor.

22 August 2018

Works Area - TBM tunnel

Ÿ   Cement bags should be covered with tarpaulin sheeting.

Works Area - Portion S-B

Ÿ   Stagnant water should be removed.

Ÿ   Stagnant water should be removed.

Reminder from the SOR

Works Area - Portion N-C

Ÿ   The hammer portion of the breaker should be wrapped with soundproof mat.

Works Area - Portion S-B

Ÿ   The hammer portion of the breaker should be wrapped with soundproof mat.

Works Area - TBM tunnel

Ÿ   The Contractor was reminded to cover the cement bags with tarpaulin sheet.

Works Area - Portion S-B

Ÿ   The Contractor was reminded to remove the stagnant water.

Ÿ   The Contractor was reminded to remove the stagnant water.

Reminder from the SOR

Works Area - Portion N-C

Ÿ   The Contractor was reminded to wrap the hammer portion of the breaker.

Works Area - Portion S-B

Ÿ   The Contractor was reminded to wrap the hammer portion of the breaker.

29 August 2018

Works Area - Portion S-C

Ÿ   The broken water barriers should be removed.

Works Area - Portion S-B

Ÿ   Drip tray should be provided for the chemical containers.

Works Area - Portion S-C

Ÿ   The Contractor was reminded to remove the broken water barriers.

Works Area - Portion S-B

Ÿ   The Contractor was reminded to provide drip tray for the chemical containers.

The Contractor has rectified all of the observations as identified during environmental site inspections in the reporting month.  

2.5                         Waste Management Status

The Contractor had submitted application form for registration as chemical waste producer under the Contract.  Sufficient numbers of receptacles were available for general refuse collection and sorting.

Wastes generated during this reporting period included mainly construction wastes (inert and non-inert), chemical wastes and marine sediment.  Reference has been made to the waste flow table prepared by the Contractor (Appendix L).  The quantities of different types of wastes are summarized in Table 2.10.

Table 2.10      Quantities of Different Waste Generated in the Reporting Month

Month/Year

Inert Construction Waste (a) (tonnes)

Inert Construction Waste Re-used

(tonnes)

Non-inert Construction Waste (b) (tonnes)

Imported Fill (m3)

Recyclable Materials (c)  (kg)

Chemical Wastes (kg)

Marine Sediment (m3)

 

Category L

Category M

(Mp & Mf)

August 2018

57,809

40,722

749

0

574,260

0

0

5,489

 

Notes:

 

 

(a)   Inert construction wastes include hard rock and large broken concrete, and materials disposed as public fill.

(b)   Non-inert construction wastes include general refuse disposed at landfill.

(c)    Recyclable materials include metals, paper, cardboard, plastics, timber and others.

 

The Contractor was advised to properly maintain on site C&D materials and waste collection, sorting and recording system, dispose of C&D materials and wastes at designated ground and maximize reuse/ recycle of C&D materials and wastes.  The Contractor was also reminded to properly maintain the site tidiness and dispose of the wastes accumulated on site regularly and properly.

For chemical waste containers, the Contractor was reminded to treat properly and store temporarily in designated chemical waste storage area on site in accordance with the Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes.

2.6                         Environmental Licenses and Permits

The status of environmental licensing and permit is summarized in Table 2.11 below.


Table 2.11      Summary of Environmental Licensing and Permit Status

License/ Permit

License or Permit No.

Date of Issue

Date of Expiry

License/ Permit Holder

Remarks

Environmental Permit

EP-354/2009/D

13 March 2015

Throughout the Contract

HyD

Application for VEP on 3 March 2015 to supersede EP-354/2009/C

Construction Dust Notification

363510

19 August 2013

Throughout the Contract

DBJV

Northern Landfall

Construction Dust Notification

 

403620

10 June 2016

Throughout the Contract

DBJV

Southern Landfall

Chemical Waste Registration

5213-422-D2516-02

18 January 2017

Throughout the Contract

DBJV

Northern Landfall

 

Chemical Waste Registration

5213-951-D2591-01

25 May 2016

Throughout the Contract

DBJV

Southern Landfall

Construction Waste Disposal Account

7018108

28 August 2013

Throughout the Contract

DBJV

Waste disposal in Contract No. HY/2012/08

Construction Waste Disposal Account

7021715

17 July 2018

17 October 2018

DBJV

Vessel Disposal

Waste Water Discharge License

WT00019248-2014

5 June 2014

30 June 2019

DBJV

For site Portion N6 and Reclamation Area E

Waste Water Discharge License

WT00025944-2016

15 December 2016

31 December 2021

DBJV

Southern Landfall

Marine Dumping Permit

EP/MD/19-024

28 August 2018

27 September 2018

DBJV

Type 1 (Dedicated site) and Type 2 (Confined Marine Disposal)

Construction Noise Permit

GW-RW0538-17

16 April 2018

15 October 2018

DBJV

For Urmston Road in front of Pillar Point

Construction Noise Permit

GW-RW0344-18

20 August 2018

19 February 2019

DBJV

WA23 @ Tsing Yi

Construction Noise Permit

GW-RS0598-18

15 July 2018

14 January 2019

DBJV

Southern Landfall

Notes:

HyD = Highways Department

DBJV = Dragages – Bouygues Joint Venture

VEP = Variation of Environmental Permit


2.7                         Implementation Status of Environmental Mitigation Measures

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

A summary of the Implementation Schedule of Environmental Mitigation Measures (EMIS) is presented in Appendix C. The necessary mitigation measures relevant to this Contract were implemented properly.

2.8                         Summary of Exceedances of the Environmental Quality Performance Limit

One (1) Action Level exceedance of 1-hour TSP was recorded on 26 August 2018.  One (1) Action Level exceedance of 1-hour TSP was recorded on 29 August 2018. 

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June and August 2018, whilst no unacceptable impact from the construction activities of the TM-CLKL Southern Connection Viaduct Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) was noticeable from general observations.

Cumulative statistics are provided in Appendix K.

2.9                         Summary of Complaints, Notification of Summons and Successful Prosecutions

The Environmental Complaint Handling Procedure is provided in Figure 2.4.

No environmental complaint was received in this reporting period.

No environmental summons was received in this reporting period.

Statistics on complaints, notifications of summons and successful prosecutions are summarized in Appendix K.  

3                             Future Key Issues

3.1                         Construction Activities for the Coming Month

As informed by the Contractor, the major works for the Project in September 2018 are summarized in Table 3.1.

Table 3.1        Construction Works to Be Undertaken in the Coming Month

Works to be undertaken

Land-based Works

·         Construction of Cross Passage Tympanum – TBM tunnel;

·         Cross Passage Construction by Pipe Jacking – TBM tunnel;

·         Cross Passage Lining Installation – TBM Tunnel;

·         Parapet wall and fireboard Installation – TBM Tunnel

·         Corbel & OVHD Construction – TBM Tunnel;

·         Bulk Excavation – Portion S-A; and

·         D-wall Construction – Portion S-A

 

There will be no dredging, reclamation or marine sheet piling works in open waters during next reporting period.

 

3.2                         Key Issues for the Coming Month

Potential environmental impacts arising from the above upcoming construction activities in the next reporting month of September 2018 are mainly associated with dust, marine ecology and waste management issues. 

3.3                         Monitoring Schedule for the Coming Month

The tentative schedule for environmental monitoring in September 2018 is provided in Appendix F.

 

 

4                             Conclusions and recommendations

4.1                         Conclusions

This Fifty-eighth Monthly EM&A Report presents the findings of the EM&A activities undertaken during the period from 1 to 31 August 2018, in accordance with the Updated EM&A Manual and the requirements of EP-354/2009/D.

Air quality (including 1-hour TSP and 24-hour TSP) and dolphin monitoring were carried out in this reporting month.

One (1) Action Level exceedance of 1-hour TSP was recorded on 26 August 2018.   One (1) Action Level exceedance of 1-hour TSP was recorded on 29 August 2018.

Four group of 6 Chinese White Dolphins sightings were recorded during the two sets of surveys in August 2018.  All four dolphin sightings were made in NWL, while none was sighted in NEL.  Two of the four dolphin sightings were made on primary lines during on-effort search .  All the four groups were not associated with any operating fishing vessel.

One (1) Limit Level exceedance was observed for the quarterly dolphin monitoring data between June and August 2018, whilst no unacceptable impact from the construction activities of the TM-CLKL Southern Connection Viaduct Section on Indo-Pacific humpback dolphin Sousa chinensis (i.e. Chinese White Dolphin) was noticeable from general observations.

Environmental site inspection was carried out five (5) times in August 2018.  Remedial actions recommended for the deficiencies identified during the site audits were properly implemented by the Contractor.

No non-compliance event was recorded during the reporting period.

No environmental complaint was received in this reporting period.

No environmental summons was received in this reporting period.

The ET will keep track on the construction works to confirm compliance of environmental requirements and the proper implementation of all necessary mitigation measures.