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

 

Monthly Environmental Monitoring and Audit Report (No. 7) – June 2023

2023-07-13

ET Certification

IEC Verification

Contents

 

Executive Summary. 1

1.  Introduction. 3

2.  Project Information. 5

3.  Air Quality Monitoring. 10

4   Noise Monitoring. 19

5   Water Quality Monitoring. 24

6   Waste Management 33

7   Landfill Gas Monitoring. 34

8   Landscape and Visual 39

9   Cultural Heritage. 40

10 Ecological Monitoring. 41

11 Site Inspection and Audit 42

12 Environmental Non-conformance. 44

13 Implementation Status on Environmental Mitigation Measures. 46

14 Future Key Issues. 47

15 Conclusion. 47

 

Figure

Figure 1

Location of the Project Site

Figure 2

Impact Air Quality, Noise & Surface Water Monitoring Locations

Figure 3

Landfill Gas Monitoring Locations

Appendix

Appendix A

Construction Programme

Appendix B

Project Organization Chart & Management Structure

Appendix C

Monitoring Schedule for Reporting Month & Next Month

Appendix D

Calibration Certificates

Appendix E

Monitoring Results

Appendix F

Graphical Presentations

Appendix G

Notification of Environmental Quality Limits Exceedance

Appendix H

Wind Data

Appendix I

Waste Flow Table

Appendix J

Joint Environmental Site Inspection Records

Appendix K

Environmental Mitigation Implementation Schedule (EMIS)

Appendix L

Appendix M

Appendix N

Construction Site Activities

Mitigation Measures of Cultural Landscape Features

Ecological monitoring record

Appendix O

Detail Status of FEP & EP Submission

Appendix P

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 7th Monthly EM&A Report presents the EM&A works conducted from 1 to 30 June 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:

-               Material loading and unloading, site traffic at Portion A, SBA to alternative disposal ground

-               Permanent site office foundation works with pouring of concrete at Portion D

-               Site clearance at Portion A, B2/E2, E3-1 & E4

-               Installation of permanent fencing at Portion A, B1 & E4

-               Site formation at Portion A & E3-1

-               Tree felling at Portion B2/E1, E3-1 & E4

Environmental Monitoring and Audit Progress

A summary of the monitoring activities in this reporting period is listed below:

Items

Times

Date

-       Air Quality Monitoring during normal weekdays at each monitoring station

6 times

2, 8, 14, 20, 26 & 30 June 2023

-       Construction Noise Monitoring during normal weekdays at each monitoring station

4 times

8, 14, 21 & 26 June 2023

-       Surface Water Quality Monitoring during normal weekdays at each monitoring station

1 time

21 June 2023

-       Landfill Gas Monitoring during normal weekdays for Construction Works

25 times

1 to 3, 5 to 10, 12 to 17, 19 to 21, 23 to 24, 26 to 30 June 2023

-       Post-translocation Monitoring during normal weekdays at recipient site

1 time

7 June 2023

-       Post-transplantation monitoring and audit during normal weekdays for transplanted plants and receptor sites

1 time

16 June 2023

-       Joint Environmental Site Inspection

4 times

5, 12, 19 & 26 June 2023


 

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 Level was recorded at designated monitoring stations during the reporting period. 1 Turbidity exceedance of the Limit Level was recorded at WM2 during the reporting period. The investigation results will be presented when the investigation of limit level exceedance of surface water quality is finished.

 

Environmental Non-conformance/Compliant/Summons and Prosecution

 

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

 

1 complaint & 1 enquiry were recorded during the reporting period. The investigation results will be presented when the investigation was finished.

 

No summons/prosecutions were received in this reporting period.

Reporting Change

There was no reporting change in the reporting period.

Future Key Issues

Works to be undertaken in the next month include:

-               Material loading and unloading, site traffic at Portion A, SBA to alternative disposal ground

-               Permanent site office foundation works with pouring of concrete at Portion D

-               Site clearance at Portion A & E3-1

-               Installation of permanent fencing at Portion A, B1 & E4

-               Site formation at Portion A & E3-1

-               Tree felling at Portion E3-1 & E4

 

Potential environmental impacts arising from the above construction activities are mainly associated with air quality, construction noise, water quality, waste management, landfill gas monitoring, landscape and visual, cultural heritage and ecology.

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.

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 and Environmental Permit (EP and FEP) condition 3.3, Monthly EM&A report should be submitted to the Director of Environmental Protection (DEP), within 2 weeks after the end of the reporting month. 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 7th Monthly EM&A Report which summarises the impact monitoring results and audit findings for the EM&A programme during the reporting period from 01 to 30 June 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 – Future Key Issues


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 Appendix L. Construction programme is illustrated in Appendix A.

2.2.                 Project Organization & Management Structure

2.2.1.               The Project Organization Chart & Management Structure are shown in Appendix B. The key personnel contact information is summarized in Table 2-1.

Table 2-1       Contact Information of Key Personnel

Party

Name

Contact Number

Contractor

(Veolia Environmental Service Hong Kong Ltd.)

Ms. Kristy Wong

2902 5260

Independent Environmental Checker (IEC)

(Meinhardt Infrastructure and Environment Ltd.)

Ms. Claudine Lee

2859 5409

Environmental Team Leader (ETL)

(Aurecon Hong Kong Limited)

Mr. Fredrick Leong

3664 6888

2.3.                 Status of Submission required under the FEP & EP during reporting period

2.3.1.               The status of statutory environmental compliance with the EP conditions under the EIAO, submission status under the FEP & EP during reporting period are presented in Table 2-2. The detail status of statutory environmental compliance with the EP conditions under the EIAO, submission status under the FEP & EP for NENTX project are shown in Appendix O.


 

Table 2-2  Status of Submissions required under the FEP & EP during reporting period

FEP Condition

EP Condition

Submission / Measures

Status

2.1

2.3

Management Organization of Main Construction Companies

Submitted

2.2

2.4

Setting up of Community Liaison Group (CLG)

Community Liaison Group was set up.

2.3

2.5

Submission of EM&A Manual

Submitted

2.5

2.7

Submission of Vegetation Survey (Transplantation Proposal)

Submitted

2.6

2.8

Submission of translocation proposal

Submitted

2.7

2.9

Submission of Transplantation Report and Post-Transplantation Monitoring

Submitted

 11th post-transplantation monitoring

(16 Jun 2023)