TABLE OF CONTENTS

 

EXECUTIVE SUMMARY.. 1

Introduction. 1

Environmental Monitoring Works. 1

Key Information in the Reporting Month. 4

Key Construction Work in the reporting month & the next reporting month. 4

Future Key Issues. 7

1. introduction.. 9

Purpose of the Report 9

Structure of the Report 9

2. PROJECT INFORMATION.. 11

Background. 11

Project Organizations. 11

Construction Activities undertaken during the Reporting Month. 12

Status of Environmental Licences, Notification and Permits. 13

Summary of EM&A Requirements. 14

3. AIR QUALITY.. 16

Monitoring Requirements. 16

Monitoring Locations. 16

Monitoring Equipment 16

Monitoring Parameters and Frequency. 17

Monitoring Methodology. 17

Results and Observations. 20

4. NOISE.. 21

Monitoring Requirements. 21

Monitoring Locations. 21

Monitoring Equipment 21

Monitoring Methodology and QA/QC Procedure. 22

Results and Observations. 23

5. WATER QUALITY.. 26

Monitoring Requirements. 26

Monitoring Locations. 27

Monitoring Equipment 27

Monitoring Parameters and Frequency. 29

Monitoring Methodology. 30

Laboratory Analytical Methods. 30

QA/QC Requirements. 31

Decontamination Procedures. 31

Sampling Management and Supervision. 31

Results and Observations. 31

6. ECOLOGY.. 35

Post-Translocation Coral Monitoring. 35

7. cultural heritage.. 36

Monitoring Requirement 36

Monitoring Locations. 36

Monitoring Equipment 36

Monitoring Methodology. 37

Alert, Alarm and Action Levels. 37

Results. 37

Mitigation Measures for Cultural Heritage. 37

8. LANDSCAPE AND VISUAL IMPACT REQUIREMENTS. 38

9. LANDFILL GAS MONITORING.. 39

Monitoring Requirement 39

Monitoring Parameters and Frequency. 39

Monitoring Locations. 39

Monitoring Equipment 39

Results and Observations. 40

10. ENVIRONMENTAL AUDIT.. 41

Site Audits. 41

Implementation Status of Environmental Mitigation Measures. 41

11. WASTE MANAGEMENT.. 42

12. ENVIRONMENTAL NON-CONFORMANCE.. 43

Summary of Exceedances. 43

Summary of Environmental Non-Compliance. 43

Summary of Environmental Complaint 43

Summary of Environmental Summon and Successful Prosecution. 43

13. FUTURE KEY ISSUES. 44

Key Issues for the Coming Month. 45

14. CONCLUSIONS AND RECOMMENDATIONS. 46

Conclusions. 46

Recommendations. 47

 

 


lIST OF TABLES

 

Table I Non-compliance (exceedance) Recorded for the Project in the Reporting Month

Table II Key Information in the Reporting Month

Table III Summary Table for Complaint Details in the Reporting Month

Table IV Summary Table for Key Construction Work in the Reporting Month

Table V Summary Table for Site Activities in the next Reporting Period

Table 2.1 Key Project Contacts

Table 2.2 Summary Table for Major Site Activities in the Reporting Month

Table 2.3 Construction Programme Showing the Inter-Relationship with Environmental Protection/Mitigation Measures

Table 2.4 Summary of the Status of Environmental Licences, Notification and Permits

Table 3.1 Locations for Air Quality Monitoring

Table 3.2 Air Quality Monitoring Equipment

Table 3.3 Impact Dust Monitoring Parameters, Frequency and Duration

Table 3.4 Major Dust Source during Air Quality Monitoring

Table 4.1 Noise Monitoring Stations

Table 4.2 Noise Monitoring Equipment

Table 4.3 Noise Monitoring Parameters, Frequency and Duration

Table 4.4 Major Noise Source during Noise Monitoring

Table 4.5 Baseline Noise Level and Noise Limit Level for Monitoring Stations

Table 4.6 Baseline Noise Level and Noise Limit Level for Monitoring Stations (Evening-time & Daytime (Holiday))

Table 4.7 Baseline Noise Level and Noise Limit Level for Monitoring Stations (Night-time)

Table 5.1 Not Used

Table 5.2 Marine Water Quality Monitoring Stations

Table 5.3 Water Quality Monitoring Equipment

Table 5.4 Water Quality Monitoring Parameters and Frequency

Table 5.5 Methods for Laboratory Analysis for Water Samples

Table 5.6 Not Used

Table 7.1 Cultural Heritage Monitoring Equipment

Table 7.2 AAA Levels for Monitoring for Cultural Heritage

Table 9.1 Landfill Gas Monitoring Equipment

Table 13.1 Summary Table for Site Activities in the next Reporting Period

 


lIST OF FIGUREs

 

Figure 1 Site Layout Plan

Figure 1a Site Portions under Works Contract No. NE/2015/01 (Lam Tin Side)

Figure 1b Site Portions under Works Contract No. NE/2015/01 (Tseung Kwan O Side)

Figure 1c Site Portions under Works Contract No. NE/2015/02

Figure 1d Site Portions under Works Contract No. NE/2015/03

Figure 1e Site Portions under Works Contract No. NE/2017/01

Figure 1f Site Portions under Works Contract No. NE/2017/01

Figure 1g Site Portions under Works Contract No. NE/2017/02

Figure 1h Site Portions under Works Contract No. NE/2017/02

Figure 2 Locations of Air Quality Monitoring Stations

Figure 3 Locations of Construction Noise Monitoring Stations

Figure 4 Not Used

Figure 5 Locations of Marine Water Quality Monitoring Stations

Figure 6 Locations of Landfill Gas Monitoring

Figure 7 Location of Post-translocation Coral Monitoring

Figure 8 Location of Monitoring for Cultural Heritage

Figure 9 Not Used

 

 

 

lIST OF APPENDIces

 

Appendix A        Action and Limit Levels

Appendix B        Copies of Calibration Certificates

Appendix C        Weather Information

Appendix D        Environmental Monitoring Schedules

Appendix E         1-hour TSP Monitoring Results and Graphical Presentations

Appendix F         24-hour TSP Monitoring Results and Graphical Presentations

Appendix G        Noise Monitoring Results and Graphical Presentations

Appendix H       Not Used

Appendix I          Marine Water Quality Monitoring Results and Graphical Presentations

Appendix J           Not Used

Appendix K        Summary of Exceedance

Appendix L         Site Audit Summary

Appendix M       Event and Action Plans

Appendix N       Implementation Schedule And Recommended Mitigation Measures

Appendix O       Summaries of Environmental Complaint, Warning, Summon and Notification of Successful Prosecution

Appendix P         Waste Generation in the Reporting Month

Appendix Q       Tentative Construction Programme

Appendix R        Record of Landfill Gas Monitoring by Contractor

Appendix S         Updated Noise Assessment (NE2015/02)

Appendix T         Cultural Heritage Monitoring Results

Appendix U       Not Used

Appendix V       Surface Runoff Management Plan

 

 


EXECUTIVE SUMMARY

Introduction

1.      This is the 51th Environmental Monitoring and Audit (EM&A) Report prepared by Cinotech Consultants Limited for the Agreement No. CE 59/2015 (EP) Environmental Team for Tseung Kwan O Lam Tin Tunnel Design and Construction (hereinafter called the Project). This report documents the findings of EM&A Works conducted in January 2021.

 

2.      During the reporting month, the following works contracts were undertaken:

     Contract No. NE/2015/01 Tseung Kwan O Lam Tin Tunnel Main Tunnel and Associated Works;

     Contract No. NE/2015/02 Tseung Kwan O Lam Tin Tunnel Road P2 and Associated Works;

  Contract No. NE/2015/03 Tseung Kwan O Lam Tin Tunnel Northern Footbridge;

  Contract No. NE/2017/01 Tseung Kwan O Lam Tin Tunnel Tseung Kwan O Interchange and Associated Works

  Contract No. NE/2017/02 Tseung Kwan O Lam Tin Tunnel Road P2/D4 and Associated Works.

  Contract No. NE/2017/06 Tseung Kwan O Lam Tin Tunnel Traffic Control and Surveillance System(TCSS) and Associated Works

  Contract No. NE/2017/07 Cross Bay Link, Tseung Kwan O Main Bridge and Associated Works.

Environmental Monitoring Works

3.      Environmental monitoring for the Project was performed in accordance with the EM&A Manual and the monitoring results were checked and reviewed. Site Inspections/Audits were conducted once per week. The implementation of the environmental mitigation measures, Event Action Plans and environmental complaint handling procedures were also checked.

 

4.      Summary of the non-compliance (exceedance) in the reporting month for the Project is tabulated in Table I.

 

5.      One (1) non-compliance was recorded during the recording month, details shall be referring to CIR-126.

 


 

Table I Non-compliance (exceedance) Record for the Project in the Reporting Month

Environmental Monitoring

No. of Non-compliance (Exceedance)

No. of Non-compliance (Exceedance)

due to Construction Activities of this Project

Action Taken

Action Level

Limit Level

Action Level

Limit Level

Air Quality

0

0

0

0

N/A

Noise

13

0

7

0

Refer to Appendix K & O

Marine Water Quality

21

85

0

0

Refer to Appendix K

Groundwater Level Monitoring (Piezometer Monitoring)

0

N/A1

0

N/A1

N/A

Ecological

N/A

N/A

N/A

N/A

N/A

Cultural Heritage

0

0

0

0

N/A

Landfill Gas

0

0

0

0

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:(1) No Limit Level for Groundwater Level Monitoring (Piezometer Monitoring).

 

Air Quality Monitoring

 

6.      No Action/Limit Level exceedance for 1-hour TSP monitoring was recorded.

 

7.      No Action/Limit Level exceedance for 24-hour TSP monitoring was recorded.

 

Construction Noise Monitoring

 

8.      Seven (7) Action Level exceedances were recorded due to the documented complaints received in this reporting month. The Summary of Documented Complaints in Reporting Month is tabulated in Table III.

 

9.      No Limit Level exceedance for day time & evening time and no limit level exceedance for night time construction noise monitoring were recorded in the reporting month.

 

Water Quality Monitoring

 

10.  Groundwater quality monitoring had been suspended since October 2019 upon the agreement by EPD. Further details should be founded at Section 5.1.

 

11.  All marine water quality monitoring was conducted as scheduled in the reporting month. There were twenty-one (21) Action Level and eighty-five (85) Limit Level exceedances recorded in Monitoring Stations (M) during marine water quality monitoring. During this reporting month, no sand plume was observed during the water quality monitoring and site audits, therefore there is no direct evidence that the recent exceedances were due to the construction works of the Project. Details of this investigation are presented in Section 5. Daily silt curtain inspection and weekly diving inspection have been carried out by contractor, the record, as reviewed by the site auditors, indicated that silt curtains were found in good conditions.

 

12.  Construction phase daily piezometer monitoring by the Contractor commenced in June 2018. It has switched to monthly basis since 3 October 2018 as the construction activity was 120m away from the piezometer gate. No monitoring was conducted in the reporting month.

 

Ecological Monitoring

 

13.  Post-translation coral monitoring survey shall be conducted once every 3 months for a period of 12 months after completion of coral translocation. The post-translocation coral monitoring surveys were completed in November 2017.

 

Monitoring on Cultural Heritage

 

14.  Monitoring of impacts on Cultural Heritage at Cha Kwo Ling Tin Hau Temple commenced in May 2017. No Alert, Alarm and Action (AAA) Level exceedance was recorded in the reporting month.

 

Landscape and Visual Monitoring and Audit

 

15.  The implementation of landscape and visual mitigation measures was checked during the environmental site inspections. Recommended follow-up actions have been discharged by the Contractor. Details of the audit findings and implementation status are presented in Section 10.

 

Landfill Gas Monitoring

 

16.  Monitoring of landfill gases commenced in December 2016 and were carried out by the Contractor at excavation location, Portion III. No Limit Level exceedance was recorded.

 

Environmental Site Inspection

 

17.  Joint weekly site inspections were conducted by representatives of the Contractor, Engineer and Environmental Team. The representative of the IEC joined the site inspection for NE/2015/01 on 27 January 2021 & NE/2015/02, NE/2017/01, NE/2017/02 and NE/2017/06 on 21 January 2021 respectively. Details of the audit findings and implementation status are presented in Section 10.

 

Waste Management

 

18.  Wastes generated from this Project include inert construction and demolition (C&D) materials, non-inert C&D materials and marine sediment. Details of waste management data is presented in Section 11 and Appendix P.

Key Information in the Reporting Month

 

19.  Summary of key information in the reporting month is tabulated in Table II

Table II Key Information in the Reporting Month

Monthly Complaints

Event Details

Action Taken

Status

Number

Nature

January 2021

13

Noise / Air

Details refer to App O

Draft CIRs submitted / On-going

December 2020

13

Noise / Operating hours

Details refer to App O

Draft CIRs submitted / On-going / Closed

November 2020

14

Air / Noise

Details refer to App O

Draft CIRs submitted/ On-going

October 2020

11

Air / Noise

Details refer to App O

Draft CIRs submitted/ On-going

September 2020

9

Noise / Operation hours / Water

Details refer to App O

Draft CIRs submitted / On-going / Closed

August 2020

6

Noise / Operation hours / Water

Details refer to App O

Draft CIRs submitted /Closed

July 2020

5

Air / Noise

Details refer to App O

Draft CIRs submitted

Notifications of any summons & prosecutions received

0

---

N/A

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20.  Summary of complaints received in the reporting month is tabulated in Table III.

 

Table III Summary of Complaints Details in Reporting Month

Complaint No.

Complaint

Investigation Findings

Follow-up Action / Mitigation Measure

Tseung Kwan O Side

505

Noise nuisance at nighttime on a weekday

No direct evidence show that the Contractor operated barges at the time of complaint.

NIL

506

Noise nuisance at nighttime on a weekday

The Contractor operated PME(s) at evening-/night- time without an approved valid CNP

The Contractor is required to hand in Contingency and Action Plan

507, 508, 512 & 513

Air quality impact due to open stockpile

The Complaint was found project-related. The dust origin was from the stockpile at Zone A of C3.

The Contractor had sprayed water regularly to suppress the dust emission and improvement had been observed over Jan 2021.

509, 510, 511, 514, 515, 516

Investigation undergoing

Lam Tin Side

504

Suspected noise nuisance from the work site

The complaint was considered non-project-related as there was no PME working on site.

NIL

Key Construction Work in the reporting month & the next reporting month

21.  Summary of key construction work in the reporting month is tabulated in Table IV.

 

Table IV Summary Table for Key Construction Work in the Reporting Month

Contract No.

Project Title

Site Activities (January 2021)

NE/2015/01

Tseung Kwan O Lam Tin Tunnel Main Tunnel and Associated Works

Lam Tin Interchange

1)    EHC2 U-Trough

2)    Site Formation Area 1G1, Area 1G2, Area 2 & Area 5

3)    Site Formation Slope stabilization & Retaining Wall

4)    Administration Building, West Ventilation Building & Bridge Construction

5)    Stormwater Tank Construction

6)    S01_2, EHC1&4 Construction

7)    CKLR Underground Utilities

8)    Landscape Deck

Main Tunnel

9)    S02_2 Excavation

10) Main Tunnel Lining Works

TKO Interchange

11) Bridge Construction

12) East Ventilation Building

NE/2015/02

Tseung Kwan O Lam Tin Tunnel Road P2 and Associated Works

1)       Construction of pillar box and ducting system at Portion IV adjacent to Ocean Shores EVA

2)       Construction of utility trough and road barriers at road P2 CH411 500 and SR2 CH110 CH170 (land section)

3)       Site formation at Road P2 CH500-CH650 and SR1

4)       Road and drainage works at Road P2 CH500 650, slip road SR1 footpath and cycle track, slip road SR2 CH250 CH350

5)       R.C. structure works for U-trough CH318-CH363

6)       ELS at underpass P2 CH105 CH318

7)       Modification of dewatering system (P2 CH105 CH318)

8)       4th of excavation at CH105 CH318 cofferdam

9)       Installation of de-watering system at S200 CH821 CH105

10)   Excavation/ELS at CH821 CH105 Cofferdam

11)   Installation of socketed H-pile at CT01 CH117 CH336

12)   Re-construction of Tong Yin Street

13)   Installation of de-watering system at CH821 CH105

14)   Excavation & ELS installation works at CH821 CH105

15)   Construction of U-tough at CH821 CH105

16)   Drainage works at U-trough CH318 CH363.50

17)   Pre-bore/ELS works for U-trough CH363.50 CH411

18)   Construction of profile barrier at U-trough CH318 CH363.50

19)   Construction of sloping seawall

20)   Removal of temporary cofferdam

21)   Construction of seawall coping

22)   Drainage works at SR1 footpath / cycle truck

23)   Installation of ELS at cofferdam CH105 CH318

24)   Backfilling works for reinstatement of Tong Yin Street

25)   Construction of U-trough at CH821 CH 105 Cofferdam

26)   Excavation, backfilling and re-compaction at S100 CH280 S200 CH755 and S300 CH405 CH326

27)   Construction of U-tough at S100 CH280 S300 CH355

NE/2015/03

Tseung Kwan O Lam Tin Tunnel Northern Footbridge

The construction works under the contract had been completed in December 2019. The EM&A works were terminated in late April 2020.

NE/2017/01

Tseung Kwan O Lam Tin Tunnel Tseung Kwan O Interchange and Associated Works

1)       Construction of Pier

2)       Construction of Pier Head Works

3)       Construction of Pile Cap Shell

4)       Segment Erection Works

5)       Installation of Parapet Skin

NE/2017/02

Tseung Kwan O Lam Tin Tunnel Road P2/D4 and Associated Works

1)       Inspection pit excavation and utility diversion works

2)       Construction of drainage and watermain

3)       Asphalt Paving

4)       Pier, Staircase and Lift Shalt Construction

5)       Road Works

NE/2017/06

Tseung Kwan O Lam Tin Tunnel Traffic Control and Surveillance System(TCSS) and Associated Works

1)       System Integration Test

2)       Installation works at Tunnel

3)       Project Signboard set up

4)       Goods arrival & storage on site


 

Future Key Issues

22.  The future key environmental issues in the coming month include:

 

Table V Summary Table for Site Activities in the next Reporting Period

Contract No. and Project Title

Site Activities (February 2021)

Key Environmental Issues *

NE/2015/01 - Tseung Kwan O Lam Tin Tunnel Main Tunnel and Associated Works

Lam Tin Interchange

1)    EHC2 U-Trough

2)    Site Formation Area 1G1, Area 1G2, Area 2 & Area 5

3)    Site Formation Slope stabilization & Retaining Wall

4)    Administration Building, West Ventilation Building & Bridge Construction

5)    Stormwater Tank Construction

6)    S01_2, EHC1&4 Construction

7)    CKLR Underground Utilities

8)    Landscape Deck

(A) / (B) / (C) / (D) / (E) / (G)

Main Tunnel

9)    S02_2 Excavation

10) Main Tunnel Lining Works

(B)

TKO Interchange

11) Bridge Construction

12) East Ventilation Building

(A) / (C) / (D) / (E) / (F) / (I)

NE/2015/02 - Tseung Kwan O Lam Tin Tunnel Road P2 and Associated Works

1)       Construction of pillar box and ducting system at Portion IV adjacent to Ocean Shores EVA

2)       Construction of utility trough and road barriers at road P2 CH411 500 and SR2 CH110 CH170 (land section)

3)       Site formation at Road P2 CH500-CH650 and SR1

4)       Road and drainage works at Road P2 CH500 650, slip road SR1 footpath and cycle track, slip road SR2 CH250 CH350

5)       R.C. structure works for U-trough CH318-CH363

6)       ELS at underpass P2 CH105 CH318

7)       Modification of dewatering system (P2 CH105 CH318)

8)       4th of excavation at CH105 CH318 cofferdam

9)       Installation of de-watering system at S200 CH821 CH105

10)   Excavation/ELS at CH821 CH105 Cofferdam

11)   Installation of socketed H-pile at CT01 CH117 CH336

12)   Re-construction of Tong Yin Street

13)   Installation of de-watering system at CH821 CH105

14)   Excavation & ELS installation works at CH821 CH105

15)   Construction of U-tough at CH821 CH105

16)   Drainage works at U-trough CH318 CH363.50

17)   Pre-bore/ELS works for U-trough CH363.50 CH411

18)   Construction of profile barrier at U-trough CH318 CH363.50

19)   Construction of sloping seawall

20)   Removal of temporary cofferdam

21)   Construction of seawall coping

22)   Drainage works at SR1 footpath / cycle truck

23)   Installation of ELS at cofferdam CH105 CH318

24)   Backfilling works for reinstatement of Tong Yin Street

25)   Construction of U-trough at CH821 CH 105 Cofferdam

26)   Excavation, backfilling and re-compaction at S100 CH280 S200 CH755 and S300 CH405 CH326

27)   Construction of U-tough at S100 CH280 S300 CH355

(A) / (B) / (C) / (D) / (E) / (G) / (I)

NE/2015/03 - Tseung Kwan O Lam Tin Tunnel Northern Footbridge

The construction works under the contract had been completed in December 2019. Materials are being removed from works area.

N/A

NE/2017/01 Tseung Kwan O Interchange and Associated Works

1)       Construction of Pier

2)       Construction of Pier Head works

3)       Segment erection works

4)       Construction of Bridge Decks

5)       Installation of Parapet Skin

(A) / (B) / (E) / (F) / (G)

NE/2017/02 Tseung Kwan O - Lam Tin Tunnel - Road P2/D4 and Associated Works

1)       Inspection pit excavation and utility diversion works

2)       Construction of drainage and watermain

3)       Asphalt Paving

4)       Pier, Staircase and Lift Shalt Construction

5)       Road Works

(A) / (B) / (E) / (F) / (G)

NE/2017/06 Tseung Kwan O Lam Tin Tunnel Traffic Control and Surveillance System(TCSS) and Associated Works

1)       System Integration Test

2)       Installation works at Tunnel

3)       Project Signboard set up

4)       Goods arrival & storage on site

N/A

Note:

(A)        Watering for dust generation from haul road, stockpiles of dusty materials, exposed site area, excavation works and rock breaking activities;

(B)         Noisy construction activity such as rock-breaking activities and piling works;

(C)         Runoff from exposed slope or site area;

(D)        Wastewater and runoff discharge from site;

(E)         Accumulation of silt, mud and sand along U-channels and sedimentation tanks;

(F)         Set up and implementation of temporary drainage system for the surface runoff;

(G)        Storage of chemicals/fuel and chemical waste/waste oil on site;

(H)        Accumulation and storage of general and construction waste on site; and

(I)          Marine water quality impact and indirect impact to coral communities due to marine construction for TKO-LTT reclamation


 

 

1.              introduction

 

1.1              Cinotech Consultants Limited (Cinotech) was commissioned by Civil Engineering and Development Department (CEDD) as the Environmental Team (ET) to undertake environmental monitoring and auditing services for the Works Contracts involved in the implementation of Tseung Kwan O Lam Tin Tunnel (TKO-LTT) project to ensure that the environmental performance of the Works Contracts comply with the requirements specified in the Environmental Permit (EP), Environmental Monitoring & Audit (EM&A) Manual, Environmental Impact Assessment (EIA) Report of the TKO-LTT project and other relevant statutory requirements. This is the 51st Monthly EM&A report summarizing the EM&A works for the Project in January 2021.

Purpose of the Report

1.2              This is the 51st Monthly EM&A Report which summarises the impact monitoring results and audit findings for the EM&A programme during the reporting period in January 2021.

Structure of the Report

1.3              The structure of the report is as follows:

 

Section 1: Introduction purpose and structure of the report.

Section 2: Contract Information summarises background and scope of the Contract, site description, project organization and contact details, construction programme, the construction works undertaken and the status of Environmental Permits/Licenses during the reporting month.

Section 3: Air Quality Monitoring summarises the monitoring parameters, monitoring programmes, monitoring methodologies, monitoring frequency, monitoring locations, Action and Limit Levels, monitoring results and Event / Action Plans.

 

Section 4: Noise Monitoring summarises the monitoring parameters, monitoring programmes, monitoring methodologies, monitoring frequency, monitoring locations, Action and Limit Levels, monitoring results and Event / Action Plans.

 

Section 5: Water Quality Monitoring summarises the monitoring parameters, monitoring programmes, monitoring methodologies, monitoring frequency, monitoring locations, Action and Limit Levels, monitoring results and Event / Action Plans.

 

Section 6: Ecological Monitoring summarises the monitoring parameters, monitoring programmes, monitoring methodologies, monitoring frequency, monitoring locations and Action and Limit Levels, monitoring results and Event / Action Plans.

 

Section 7: Cultural Heritage summarises the monitoring parameters, monitoring programmes, monitoring methodologies, monitoring frequency, monitoring locations and monitoring results.

 

Section 8: Landscape and Visual Monitoring Requirements summarises the requirements of landscape and visual monitoring

 

Section 9: Landfill Gas Monitoring summarises the monitoring parameters, monitoring programmes, monitoring methodologies, monitoring frequency, monitoring locations, monitoring results and Limit Levels and Action Plan

 

Section 10: Environmental Site Inspection summarises the audit findings of the weekly site inspections undertaken within the reporting month.

 

Section 11: Waste Management summarises the waste management data in the reporting month.

 

Section 12: Environmental Non-conformance summarises any monitoring exceedance, environmental complaints, environmental summons and successful prosecutions within the reporting month.

Section 13: Future Key Issues summarises the impact forecast and monitoring schedule for the next three months.

 

Section 14: Conclusions and Recommendation

 


2.              PROJECT INFORMATION

Background

 

2.1              In 2002, Civil Engineering and Development Department (CEDD) commissioned an integrated planning and engineering study under Agreement No. CE 87/2001 (CE) Further Development of Tseung Kwan O Feasibility Study (the TKO Study) to formulate a comprehensive plan for further development of TKO New Town. It recommended to further develop TKO to house a total population of 450,000 besides the districts continuous commercial and industrial developments.

 

2.2              At present, the Tseung Kwan O Tunnel is the main connection between Tseung Kwan O (TKO) and other areas in the territory. To cope with the anticipated transport need, the TKO Study recommended the provision of Tseung Kwan O Lam Tin Tunnel (TKO-LTT) (hereinafter referred to as the Project) and Cross Bay Link (CBL) to meet the long-term traffic demand between TKO and the external areas. The site layout plan for the Project is shown in Figure 1. CBL was also entrusted with part of the marine viaducts near Tseung Kwan O Interchange since the commencement of the CBL project the December 2018.

 

2.3              The Environmental Impact Assessment (EIA) Report for the TKO-LTT project was approved under the Environmental Impact Assessment Ordinance (EIAO) in July 2013. The corresponding Environmental Permit (EP) was issued in August 2013 (EP no.: EP-458/2013). Variations to the EP was applied and the latest EP (EP no.: EP-458/2013/C) was issued by the Director of Environmental Protection (DEP) in January 2017.

 

2.4              The commencement dates of construction of this Project are:

Ÿ   Contract No. NE/2015/01 and Contract No. NE/2015/02: 7 November 2016.

Ÿ   Contract No. NE/2015/03: 29 May 2017.

Ÿ   Contract No. NE/2017/02: 15 March 2018.

Ÿ   Contract No. NE/2017/01: 23 May 2018.

Ÿ   Contract No. NE/2017/06: 09 November 2018.

 

Project Organizations

2.5              Different parties with different levels of involvement in the project organization include:

          Project Proponent Civil Engineering and Development Department (CEDD)

          The Engineer and the Engineers Representative (ER) AECOM

          Environmental Team (ET) Cinotech Consultants Limited (Cinotech)

          Independent Environmental Checker (IEC) AnewR Consulting Limited (AnewR)

 


2.6              The key contacts of the Project are shown in Table 2.1.

Table 2.1 Key Project Contacts

Party

Role

Contact Person

Phone No.

Fax No.

CEDD

Project Proponent

Mr. LO Sai Pak, Sunny

2301 1384

2739 0076

AECOM

Engineers Representative

Mr. KY Chan

3922 9000

2759 1698

Cinotech

Environmental Team

Dr. HF Chan

2151 2088

3107 1388

Mr. KS Lee

2151 2091

AnewR

Independent Environmental Checker

Mr. James Choi

2618 2836

3007 8648

Construction Activities undertaken during the Reporting Month

2.7              The major site activities undertaken in the reporting month included:

 

Table 2.2 Summary Table for Major Site Activities in the Reporting Month

Contract No.

Project Title

Site Activities (January 2021)

NE/2015/01

Tseung Kwan O Lam Tin Tunnel Main Tunnel and Associated Works

Lam Tin Interchange

1)    EHC2 U-Trough

2)    Site Formation Area 1G1, Area 1G2, Area 2 & Area 5

3)    Site Formation Slope stabilization & Retaining Wall

4)    Administration Building, West Ventilation Building & Bridge Construction

5)    Stormwater Tank Construction

6)    S01_2, EHC1&4 Construction

7)    CKLR Underground Utilities

8)    Landscape Deck

Main Tunnel

9)    S02_2 Excavation

10) Main Tunnel Lining Works

TKO Interchange

11) Bridge Construction

12) East Ventilation Building

NE/2015/02

Tseung Kwan O Lam Tin Tunnel Road P2 and Associated Works

1)       Construction of pillar box and ducting system at Portion IV adjacent to Ocean Shores EVA

2)       Construction of utility trough and road barriers at road P2 CH411 500 and SR2 CH110 CH170 (land section)

3)       Site formation at Road P2 CH500-CH650 and SR1

4)       Road and drainage works at Road P2 CH500 650, slip road SR1 footpath and cycle track, slip road SR2 CH250 CH350

5)       R.C. structure works for U-trough CH318-CH363

6)       ELS at underpass P2 CH105 CH318

7)       Modification of dewatering system (P2 CH105 CH318)

8)       4th of excavation at CH105 CH318 cofferdam

9)       Installation of de-watering system at S200 CH821 CH105

10)   Excavation/ELS at CH821 CH105 Cofferdam

11)   Installation of socketed H-pile at CT01 CH117 CH336

12)   Re-construction of Tong Yin Street

13)   Installation of de-watering system at CH821 CH105

14)   Excavation & ELS installation works at CH821 CH105

15)   Construction of U-tough at CH821 CH105

16)   Drainage works at U-trough CH318 CH363.50

17)   Pre-bore/ELS works for U-trough CH363.50 CH411

18)   Construction of profile barrier at U-trough CH318 CH363.50

19)   Construction of sloping seawall

20)   Removal of temporary cofferdam

21)   Construction of seawall coping

22)   Drainage works at SR1 footpath / cycle truck

23)   Installation of ELS at cofferdam CH105 CH318

24)   Backfilling works for reinstatement of Tong Yin Street