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

 

Quarterly Environmental Monitoring and Audit Report (No. 7) – July to September 2024

2024-10-14

ET Certification

IEC Verification

Contents

 

Executive Summary. 1

1.  Introduction. 2

2.  Project Information. 4

3.  Air Quality Monitoring. 7

4   Noise Monitoring. 12

5   Water Quality Monitoring. 16

6   Waste Management 22

7   Landfill Gas Monitoring. 23

8   Landscape and Visual 26

9   Cultural Heritage. 27

10 Ecological Monitoring. 28

11 Site Inspection and Audit 29

12 Environmental Non-conformance. 39

13 Implementation Status on Environmental Mitigation Measures. 42

14 Conclusion. 43

 

Figure

Figure 1

Location of the Project Site

Figure 2

Impact Monitoring Locations

Figure 3

Landfill Gas Monitoring Locations

Appendix

Appendix A

Construction Programme & Construction Site Activities

Appendix B

Project Organization Chart & Management Structure

Appendix C

Detail Status of FEP & EP Submission

Appendix D

Graphical Presentations

Appendix E

Notification of Environmental Quality Limits Exceedance

Appendix F

Waste Flow Table

Appendix G

Environmental Mitigation Implementation Schedule (EMIS)

Appendix H

Mitigation Measures of Cultural Landscape Features

Appendix I

Cumulative complaint / enquiry log and Summaries of complaints and enquiry


Executive Summary

ES1.             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.

 

ES2.             The construction phase and EM&A programme of the Project commenced on 1 December 2022.

 

ES3.             This 7th Quarterly EM&A Report presents the EM&A works conducted from 1 July to 30 September 2024 in accordance with the Updated EM&A Manual.

Summary of Construction Works undertaken during Report Period

ES4.             The major construction works undertaken during the reporting period include:

 

ES Table1           Major Construction Works undertaken during the Reporting Period

Construction Activities Undertaken

Reporting Month

Jul 2024

Aug 2024

Sep 2024

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

-  Construction of site buildings at Portion D

-  Site clearance at Portion A, B2/E1, E3-1 & E4

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

-  Site formation at Portion A, B2/E1, E3-1 & E4

-  Tree felling at whole site

Shotcreting (Permanent and Temporary) at whole site

Soil nail installation at Portion A, B2/E1 & E4

 

Environmental Exceedance

 

Air Quality, Noise, Surface Water Quality & Landfill Gas Monitoring

 

ES5.             No exceedance of the Action and Limit Levels were recorded at designated monitoring stations during the reporting period.

 

Environmental Non-conformance/Compliant/Summons and Prosecution

 

ES6.             No non-conformance event, complaint, summons/prosecutions were recorded and received in this reporting period.

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 (EM&A) 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. The Updated EM&A Manual was approved by Director of Environmental Protection (DEP) on 4 January 2024.

1.1.3             In accordance with the requirements specified in Section 2.7 to 2.11 and Section 12.3 of the Updated EM&A Manual, Quarterly EM&A report should be submitted to the 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 7th 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 2024.

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 2Project 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 and detailed construction activities are illustrated in Appendix A.

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

Construction Activities Undertaken

Reporting Month

Jul 2024

Aug 2024

Sep 2024

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

-  Construction of site buildings at Portion D

-  Site clearance at Portion A, B2/E1, E3-1 & E4

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

-  Site formation at Portion A, B2/E1, E3-1 & E4

-  Tree felling at whole site

Shotcreting (Permanent and Temporary) at whole site

Soil nail installation at Portion A, B2/E1 & E4

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 2-2.

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)

(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 & FEP conditions under the EIAO, submission status under the EP & FEP during reporting period are presented in Table 2-3. The detail status of statutory environmental compliance with the EP & FEP conditions under the EIAO, submission status under the EP & FEP for NENTX project are shown in Appendix C.

Table 2-3  Status of Submissions required under the EP & FEP during reporting period

EP Condition

FEP Condition

Submission / Measures

Status

2.3

2.1

Management Organization of Main Construction Companies

Submitted

2.4

2.2

Setting up of Community Liaison Group (CLG)

Community Liaison Group was set up.

2.5

2.3

Submission of EM&A Manual

Submitted

2.6

2.4

Submission of Preservation of Cultural Landscape Features

Submitted

2.7

2.5

Submission of Vegetation Survey (Transplantation Proposal)

Submitted

2.8

2.6

Submission of Translocation Proposal

Submitted

2.9

2.7

Submission of Transplantation Report and Post-Transplantation Monitoring

Submitted

2.10

2.8

Submission of Translocation Report and Post-Translocation Monitoring

Submitted

2.11

2.9

Submission of Detailed Landfill Gas Hazard Assessment Report

Submitted

2.12

2.10

Submission of Waste Management Plan

Submitted

3.2

3.2

Submission of Baseline Monitoring Report

Submitted

3.3

3.3

Submission of Monthly EM&A Report

20th report (Jul 2024)

21st report (Aug 2024)

22nd report (Sep 2024)

2.4                Status of Environmental Approval Document

2.4.1             A summary of the relevant valid permits, licences, and/or notifications on environmental protection for this Project since the granting of the EP & FEP is presented in Table 2-4.

Table 2-4  Summary of the relevant valid permits, licences, and/or notifications on environmental protection

Permit / Licenses / Notification

Reference

Expiry Date

Remark

Environmental Permit (EP)

EP-292/2007

Throughout the Contract

Permit granted on 26

November 2007

Further Environmental Permit (FEP)

FEP-01/292/2007

Throughout the Contract

Permit granted on 28

April 2022

FEP-02/292/2007

Throughout the Contract

Permit granted on 23 August 2023

Notification of Construction Works as required under Air Pollution Control (Construction Dust) Regulation

479809

Throughout the Construction Phase

Notified on 13 May 2022

Registration of Waste Producer under Waste Disposal Ordinance

7043692

Throughout the Contract

Registered on 13 April 2022

Construction Noise Permit

GW-RN0702-24

18 September 2024

Permit granted on 17 June 2024

GW-RN1050-24

18 December 2024

Permit granted on 6 September 2024

Registration as Chemical Waste Producer

5213-642-P1034-18

Throughout the Contract

Registered on 11 July 2022

Effluent Discharge License under Water Pollution Control Ordinance

WT00042301-2022

31 October 2027

Permit granted on 18 October 2022

Variation of Licence (Permit granted on 7 February 2023)

3.              Air Quality Monitoring

3.1                  Construction Dust

3.1.1       Monitoring Requirement

3.1.1.1      In accordance with the Updated EM&A Manual, 1-hr & 24-hr Total Suspended Particulates (TSP) levels should be measured at the designated air quality monitoring stations in every 6 days to ensure that any deteriorating air quality could be readily detected, and timely action shall be undertaken to rectify such situation. For 1-hr TSP monitoring, the sampling frequency of at least three times in every six-days should be undertaken when the highest dust impact occurs. The specific time to start and stop the 24- hr TSP monitoring shall be clearly defined for each location.

3.1.2       Monitoring Parameters, Frequency and Location

3.1.2.1      According to the Updated EM&A Manual, three monitoring stations namely AM(D)1, AM(D)2 and AM(D)3 are selected for the impact monitoring.

 

3.1.2.2      A baseline monitoring plan has been submitted to IEC and EPD on 31 May 2022 including the proposal with justification of change of monitoring locations. Due to limited access to the original monitoring locations at AM(D)1, AM(D)2 and AM(D)3, the adjusted stations at AM1, AM2 and AM3 were agreed with IEC prior to the baseline and impact monitoring. The locations of adjusted dust monitoring locations are shown in Figure 2.

 

3.1.2.3      The locations of dust monitoring stations are shown in Table 3-1. The monitoring parameters, frequency and duration are shown in Table 3-2.

Table 3-1        Locations of Dust Monitoring Stations

Monitoring Station

Representative for

Monitoring Parameters

AM1

Tung Lo Hang

1-hr and 24-hr TSP

AM2

Heung Yuen Wai

1-hr and 24-hr TSP

AM3

Wo Keng Shan Tsuen

1-hr and 24-hr TSP

Remarks:

The contractor passed correspondence including original monitoring locations specified on the Approved EM&A Manual to the village representatives on 26 April 2022. After a meeting with Ta Kwu Ling District Rural Committee (RC) Chairman, representative from the RC and a few villagers on 1 May 2022, all the Village Heads of Wo Keng Shan Tsuen, Heung Yuen Wai and Lin Ma Hang verbally refused to accept our proposal for installation of dust and / or noise monitoring equipment within or next to their villages, for the baseline & impact monitoring.

AM(D)1 Tung Lo Hang, AM(D)2 Heung Yuen Wai, AM(D)3 Wo Keng Shan Tsuen are the air monitoring stations for the construction phase EM&A programme as identified in the approved EM&A Manual for the Project. The access to Tung Lo Hang, Heung Yuen Wai and Wo Keng Shan Tsuen were denied.  A search for alternative air monitoring locations (AM1, AM2 & AM3) was carried out during the site visit.

The Baseline Monitoring Plan has been submitted to IEC and EPD including the proposal of change of monitoring locations on 31 May 2022. This arrangement was conducted between baseline and impact monitoring and has been agreed by the Independent Environmental Checker (IEC) and no comment received from EPD.

Due to the adjustment of the location of AM(D)1, AM(D)2 & AM(D)3to AM1, AM2 & AM3, the measured air quality levels at AM1, AM2 & AM3 would represent the air quality levels at AM(D)1, AM(D)2 & AM(D)3.


Table 3-2        Dust Impact Monitoring Parameters, Frequency and Duration

Monitoring Station

Parameter

Frequency and Duration

AM1, AM2, AM3

1-hr TSP

At least 3 times per 6 days

24-hr TSP

1 time per 6 days

3.1.3       Monitoring Results

3.1.3.1      The impact dust monitoring results are summarized in Table 3-3 and Table 3-4. The graphical presentations of monitoring data are presented in Appendix D.

Table 3-3