Agreement No. CE 20/2004(EP) North East New Territories (NENT) Landfill Extension

 

Quarterly Environmental Monitoring and Audit Report (No. 3) – July to September 2023

2023-10-13

ET Certification

IEC Verification

Contents

Executive Summary  1

1.  Introduction. 3

2.  Project Information. 5

3.  Air Quality Monitoring. 8

4   Noise Monitoring. 13

5   Water Quality Monitoring. 17

6   Waste Management 25

7   Landfill Gas Monitoring. 26

8   Landscape and Visual 29

9   Cultural Heritage. 30

10 Ecological Monitoring. 31

11 Site Inspection and Audit 33

12 Environmental Non-conformance. 40

13 Implementation Status on Environmental Mitigation Measures. 43

14 Conclusion. 44

 

Figure

Figure 1

Location of the Project Site

Figure 2

Impact Monitoring Locations

Figure 3

Landfill Gas Monitoring Locations

Appendix

Appendix A

Construction Programme

Appendix B

Construction Site Activities

Appendix C

Project Organization Chart & Management Structure

Appendix D

Detail Status of FEP & EP Submission

Appendix E

Graphical Presentations

Appendix F

Notification of Environmental Quality Limits Exceedance

Appendix G

Waste Flow Table

Appendix H

Environmental Mitigation Implementation Schedule (EMIS)

Appendix I

Mitigation Measures of Cultural Landscape Features

Appendix J

Cumulative complaint / enquiry log, Summaries of complaints and enquiries & Environmental complaint reports

 


Executive Summary

Aurecon Hong Kong Limited (Aurecon) was appointed to undertake the role of Environmental Team (ET) and carry out Environmental Monitoring and Audit for the North East New Territories (NENT) Landfill Extension.

 

The construction phase and EM&A programme of the Project commenced on 1 December 2022.

 

This 3rd Quarterly EM&A Report presents the EM&A works conducted from 1 July to 30 September 2023 in accordance with the EM&A Manual.

Summary of Construction Works undertaken during Report Period

The major construction works undertaken during the reporting period include:

Construction Activities Undertaken

Reporting Month

Jul 2023

Aug 2023

Sep 2023

-  Material loading and unloading, site traffic

-  Permanent site office foundation works with pouring of concrete

 

-  Construction of site buildings

 

 

-  Site clearance

-  Installation of permanent fencing

-  Site formation

-  Tree felling

Shotcreting (Permanent and Temporary)

 

 

 

Environmental Exceedance

 

Air Quality, Noise & Landfill Gas Monitoring

No exceedance of the Action and Limit Levels were recorded at designated monitoring stations during the reporting period.

 

Surface Water Quality Monitoring

No exceedance of the Action and Levels was recorded at designated monitoring stations in July 2023. One DO exceedance of the Action Level was recorded at Surface Water Quality Monitoring (WQM) Location WM1 in August 2023. No exceedance of the Limit Level was recorded at Surface WQM Location WM1 in August 2023. No exceedance of the Action and Limit Levels were recorded at Surface WQM Location WM2 in August 2023. No exceedance of the Action and Levels was recorded at designated monitoring stations in September 2023.


 

Environmental Non-conformance/Compliant/Summons and Prosecution

 

One warning regarding suspected non-compliance event with Condition 1.7 and 2.15(a) of the EP & Condition 1.7 and 2.13(a) of the FEP-01 & FEP-02 was recorded during the reporting period. The related rectified actions are being taken in progress by the contractor.

 

No summons/prosecutions were recorded and received in this reporting period.

 

Three Complaint received on 3 and 18 August 2023 & 14 September 2023 were recorded during the reporting period. For the complaint received on 3 August 2023, the further mitigation measures and enhancement of the temporary surface water drainage system were advised to implement by contractor. For the complaint received on 18 August & 14 September 2023, The related rectified actions should be conducted by the contractor as soon as possible.

1.                  Introduction

1.1.              Background

1.1.1.            The North East New Territories Landfill Extension (the NENTX Project) is located adjacent to the existing North East New Territories (NENT) Landfill at Ta Kwu Ling. The extension site is located in a valley covering mainly the existing NENT Landfill Stockpile and Borrow Area that was formed to the east of the existing landfill as part of the original site development of the landfill, and layout plan shown in Figure 1.

1.1.2.            The NENTX is a designated project. The Environmental Impact Assessment (EIA) Report (AEIAR-111/2007) and an Environmental Monitoring and Audit Manual were approved on 20 September 2007. The project is governed by an Environmental Permit (EP) (EP-292/2007) which was granted on 26 November 2007. A further of EP (FEP) was applied and the FEP (FEP-01/292/2007) was subsequently granted on 28 April 2022. Another further of EP (FEP-02/292/2007) was subsequently granted on 23 August 2023.

1.1.3.            In accordance with the requirements specified in Section 2.6 to 2.10 and Section 12.3 of the approved Environmental Monitoring and Audit (EM&A) Manual, Quarterly EM&A report should be submitted to the Director of Environmental Protection (DEP) within 10 working days after the end of the reporting quarter. The submissions shall be certified by the Environmental Team (ET) Leader and verified by the Independent Environmental Checker (IEC).

1.1.4.            The construction phase and EM&A programme of the Project commenced on 1 December 2022.

1.2.              Nature, Scale and Scope of the captioned Designated Project

1.2.1           The Nature, Scale and Scope of the captioned Designated Project is presented in Table 1-1.

Table 1-1     Nature, Scale and Scope of the captioned Designated Project

Item(s)

Content

Nature of Designated Project

Construction and operation of a landfill for waste as defined in the “Waste Disposal Ordinance” (Cap. 354)

Scale and Scope of Designated Project

The Project mainly consists of the followings: -

Construction and operation of a landfill extension of about 70 hectares with a target void space of at least 19 million cubic metres on the eastern side of the existing NENT Landfill, including the followings: -

   i.           Site formation and preparation;

 ii.          Installation of liner system;

iii.          Installation of leachate collection, treatment and disposal facilities;

iv.           Installation of gas collection, utilization and management facilities;

 v.           Utilities provisions and drainage diversion;

vi.           Landfilling operation;

vii.          Restoration and aftercare in subsequent stages; and

viii.       Measures to mitigate environmental impacts as well as environmental monitoring and auditing to be implemented.


 

1.3.              Purpose of this Report

1.3.1.            This is the 3rd Quarterly EM&A Report which summarises the impact monitoring results and audit findings for the EM&A programme during the reporting period from 01 July to 30 September 2023.

1.4.              Structure of the Report

1.4.1.            The structure of the report is as follows:

Section 1 – Introduction

-       details the background, purpose and structure of the report.

Section 2 – Project Information

-       summarises background and scope of the Project, site description, project organization and contact details, construction programme, the construction works undertaken and the status of Environmental Permit(s)/License(s) during the reporting period.

Section 3 – Air Quality Monitoring

-       Construction Dust

Section 4 – Noise Monitoring

Section 5 – Water Quality Monitoring

-       Groundwater Monitoring

-       Surface Water Monitoring

Section 6 – Waste Management

Section 7 – Landfill Gas Monitoring

Section 8 – Landscape and Visual

Section 9 – Cultural Heritage

Section 10 – Ecological Monitoring

Section 11 – Site Inspection and Audit

Section 12 – Environmental Non-Conformance

Section 13 – Implementation Status on Environmental Mitigation Measures

Section 14 – Conclusion


2.                  Project Information

2.1.              Construction Activities

2.1.1.            A summary of the major construction activities undertaken in this reporting period is shown in Table 2-1. Construction programme is illustrated in Appendix A. Detailed construction activities are summarized in Appendix B.

Table 2-1       Major Construction Activities Undertaken in the Reporting Period

Construction Activities Undertaken

Reporting Month

Jul 2023

Aug 2023

Sep 2023

-  Material loading and unloading, site traffic

-  Permanent site office foundation works with pouring of concrete

 

-  Construction of site buildings

 

 

-  Site clearance

-  Installation of permanent fencing

-  Site formation

-  Tree felling

Shotcreting (Permanent and Temporary)

 

 

2.2.              Project Organization & Management Structure

2.2.1.            The Project Organization Chart & Management Structure are shown in Appendix C. The key personnel contact information is summarized in Table 2-2.

Table 2-2       Contact Information of Key Personnel

Party

Name

Contact Number

Contractor

(Veolia Hong Kong Holding Ltd.)

Mr. Matt Choy

2902 5296

Independent Environmental Checker (IEC)