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. 5

Future Key Issues. 6

1. introduction.. 8

Purpose of the Report 8

Structure of the Report 8

2. PROJECT INFORMATION.. 10

Background. 10

Project Organizations. 10

Construction Activities undertaken during the Reporting Month. 11

Status of Environmental Licences, Notification and Permits. 13

Summary of EM&A Requirements. 14

3. AIR QUALITY.. 15

Monitoring Requirements. 15

Monitoring Locations. 15

Monitoring Equipment 15

Monitoring Parameters and Frequency. 16

Monitoring Methodology. 16

Results and Observations. 19

4. NOISE.. 20

Monitoring Requirements. 20

Monitoring Locations. 20

Monitoring Equipment 20

Monitoring Methodology and QA/QC Procedure. 21

Results and Observations. 22

5. WATER QUALITY.. 24

Monitoring Requirements. 24

Monitoring Locations. 25

Monitoring Equipment 25

Monitoring Parameters and Frequency. 27

Monitoring Methodology. 28

Laboratory Analytical Methods. 28

QA/QC Requirements. 28

Decontamination Procedures. 28

Sampling Management and Supervision. 29

Results and Observations. 29

6. ECOLOGY.. 32

Post-Translocation Coral Monitoring. 32

7. cultural heritage.. 33

Monitoring Requirement 33

Monitoring Locations. 33

Monitoring Equipment 33

Monitoring Methodology. 34

Alert, Alarm and Action Levels. 34

Results. 34

Mitigation Measures for Cultural Heritage. 34

8. LANDSCAPE AND VISUAL IMPACT REQUIREMENTS. 35

9. LANDFILL GAS MONITORING.. 36

Monitoring Requirement 36

Monitoring Parameters and Frequency. 36

Monitoring Locations. 36

Monitoring Equipment noise mitigation. 36

Results and Observations. 37

10. ENVIRONMENTAL AUDIT.. 38

Site Audits. 38

Implementation Status of Environmental Mitigation Measures. 38

11. WASTE MANAGEMENT.. 39

12. ENVIRONMENTAL NON-CONFORMANCE.. 40

Summary of Exceedances. 40

Summary of Environmental Complaint 40

Summary of Environmental Summon and Successful Prosecution. 40

13. FUTURE KEY ISSUES. 41

Key Issues for the Coming Month. 42

14. CONCLUSIONS AND RECOMMENDATIONS. 43

Conclusions. 43

Recommendations. 44

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 Quality Control Reports for Laboratory Analysis

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 Not Used

Appendix T Cultural Heritage Monitoring Results

Appendix U Not Used

Appendix V Surface Runoff Management Plan

EXECUTIVE SUMMARY

Introduction

1. This is the 60^th 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 October 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.

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	Refer to Appendix K
Noise	0	0	1	0	Refer to Appendix K & O
Marine Water Quality	26	164	0	0	Refer to Appendix K
Groundwater Level Monitoring (Piezometer Monitoring)	0	N/A^1	0	N/A^1	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

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

6. No Action Level exceedance for 24-hour TSP monitoring was recorded.

7. No Limit Level exceedances for 24-hour TSP monitoring was recorded.

Construction Noise Monitoring

8. One (1) Action Level exceedance was recorded due to documented complaints in the reporting month. The Summary of Documented Complaints in Reporting Month is tabulated in Table III.

9. No Limit Level exceedance was recorded due to monitoring results in this 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-six (26) Action Level and one-hundred-and-sixty-four (164) 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 and NE/2017/07 on 27 October 2021 & NE/2015/02, NE/2017/01, NE/2017/02 and NE/2017/06 on 28 October 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
October 2021	3	Noise / Odour / Water	Details refer to App O	On-going / Draft CIRs submitted
September 2021	6^*1	Air / Noise	Details refer to App O	Closed / Draft CIRs submitted
August 2021	3	Noise	Details refer to App O	Closed
July 2021	3	Noise / Working Hours	Details refer to App O	Closed
June 2021	3	Light/ Water/ Working Hours	Details refer to App O	Closed
May 2021	3	Air / Noise	Details refer to App O	Closed
April 2021	13^*2	Noise	Details refer to App O	Closed
March 2021	18^*3	Noise	Details refer to App O	Closed
Notifications of any summons & prosecutions received	0	---	N/A	N/A

*1: 1 complaint at September 2021 was received at early October 2021.

*2: 1 complaint at April 2021 was received at early May 2021.

*3: 4 new complaints in March 2021 was received by Environmental Team in April 2021.

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
Lam Tin Side
570	Anonymous	Investigation on-going
Tseung Kwan O Side
568	Pedestrian	The complaint is considered as non-project-related. Measures such as adopting low-sulphur content diesel as far as possible is recommended. The details can be referred to CIR-O9.	Nil
569	DSD	The complaint is considered as non-project related as the general condition of the sea is muddy during the date of incident. The details can be referred to CIR-W19.	The Contractor is reminded to keep practicing good site practices such as deploy silt curtain and maintain adequate capacity of drainage system.
571	Resident of Ocean Shores	Preliminary results from noise monitoring showed no limit level of exceedance and no non-compliance regarding construction schedule was found. The details shall be referred to CIR-N152.	The Contractor is reminded to repair or replace damaged noise barrier and stick to the approved CNMP as far as possible.

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 (October 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 & 1G2 & 5 3) Site Formation Area 2 4) Site Formation Slope Stabilization 5)