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 10^th Monthly EM&A Report presents the EM&A works conducted from 1 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:

- 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 & E3-1

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

- Shotcreting (Permanent and Temporary)

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	4, 11, 14, 20, 26 & 28 September 2023
- Construction Noise Monitoring during normal weekdays at each monitoring station	4 times	11, 14, 20 & 26 September 2023
- Surface Water Quality Monitoring during normal weekdays at each monitoring station	1 time	20 September 2023
- Additional Surface Water Quality Monitoring during normal weekdays at WM2 and GR3 (EPD Monitoring Location)	1 time	28 September 2023
- Landfill Gas Monitoring during normal weekdays for Construction Works	22 times	4 to 9, 11 to 16, 18 to 23, 25 to 29 September 2023
- Post-transplantation monitoring and audit during normal weekdays for transplanted plants and receptor sites	1 time	15 September 2023
- Joint Environmental Site Inspection	4 times	4, 11, 18 & 25 September 2023
- General Site Inspection by EPD-RNG	2 times	7 & 13 September 2023

Environmental Exceedance

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

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

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.

One complaint received on 14 September 2023 was recorded during the reporting period. The related rectified actions should be conducted by the contractor as soon as possible.

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

- 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 & E3-1

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

- Shotcreting (Permanent and Temporary)

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. 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 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 10^th 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 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 – 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 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 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 14^th post-transplantation monitoring (15 Sep 2023)
2.9	2.11	Submission of Detailed Landfill Gas Hazard Assessment Report	Submitted
2.10	2.12	Submission of Waste Management Plan	Submitted
3.2	3.2	Submission of Baseline Monitoring Report	Submitted

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 FEP & EP is presented in Table 2-3.

Table 2-3 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
Further Environmental Permit (FEP)	FEP-02/292/2007	Throughout the Contract	Permit granted on23 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
Registration as Chemical Waste Producer	5213-642-P1034-18	Throughout the Contract	Registered on 11 July 2022
Construction Noise Permit	GW-RN0619-23	22 September 2023	Permit granted on 16 June 2023
Construction Noise Permit	GW-RN1012-23	22 December 2023	Permit granted on 22 September 2023 (Replaced CNP No. GW-RN0619-23)
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)

2.5. Environmental Monitoring and Audit Progress

2.5.1. A summary of the monitoring activities in this reporting period is presented in Table2-4.

Table 2-4 Summary of the Monitoring Activities in this reporting period

Items	Times	Date
- Air Quality Monitoring during normal weekdays at each monitoring station	6 times	4, 11, 14, 20, 26 & 28 September 2023
- Construction Noise Monitoring during normal weekdays at each monitoring station	4 times	11, 14, 20 & 26 September 2023
- Surface Water Quality Monitoring during normal weekdays at each monitoring station	1 time	20 September 2023
- Additional Surface Water Quality Monitoring during normal weekdays at WM2 and GR3 (EPD Monitoring Location)	1 time	28 September 2023
- Landfill Gas Monitoring during normal weekdays for Construction Works	22 times	4 to 9, 11 to 16, 18 to 23, 25 to 29 September 2023
- Post-transplantation monitoring and audit during normal weekdays for transplanted plants and receptor sites	1 time	15 September 2023
- Joint Environmental Site Inspection	4 times	4, 11, 18 & 25 September 2023
- General Site Inspection by EPD-RNG	2 times	7 & 13 September 2023

Air Quality

6 sets of 1-hr & 24-hr TSP construction dust measurement were carried out at each monitoring stations during normal weekdays of the reporting period. No Action / Limit Level exceedance for 1-hr & 24-hr TSP impact monitoring was recorded during the period.

Noise

4 sets of 30-minute construction noise measurement were carried out at each monitoring stations during normal weekdays of the reporting period. No exceedance of Action and Limit Levels of construction noise was recorded during the reporting period.

Groundwater

Site clearance of future landfilling area is in progress. The installation of groundwater monitoring boreholes will be installed after the site formation work of the landfilling area. The target commencement period of groundwater monitoring will be in 2026. No groundwater monitoring is required before the completion of site formation work of the landfilling area.

Surface Water Quality

1 set of surface water quality measurement were carried out at each monitoring stations during normal weekdays of the reporting period. No exceedance of Limit Level of surface water quality at each monitoring stations was recorded during the reporting period.

1 set of additional surface water quality measurement were carried out at WM2 and GR3 (EPD Monitoring Location) on 28 September 2023 of the reporting period based on the environmental complaint received on 14 September 2023. No exceedance of Limit Level of surface water quality at each monitoring stations was recorded during the reporting period.

Landfill Gas

22 sets of landfill gas measurement were carried out at the designated monitoring locations during normal weekdays of the reporting period. No exceedance of Action and Limit Levels of landfill gas was recorded during the reporting period.

Landscape and Visual

All the specified and affected LCAs, LRs and VSRs have been monitored during the reporting period. No exceedance of Action and Limit Levels of landscape and visual was recorded during the reporting period.

Cultural Heritage

Implementation of the mitigation measures during construction phase of the Project has been monitored through the regular site inspection/audit.

Ecology

1 set of post-transplantation monitoring and audit for transplanted plants and receptor sites during normal weekdays of the reporting period was carried out. Implementation of the mitigation measures during construction phase of the Project has been monitored through the regular site inspection/audit.

Environmental Site Inspection

4 weekly environmental site inspections were carried out during the reporting period. A joint environmental site inspection was carried out by the representatives of the Employer's Representative (ER), the Contractor, IEC and the ET on 18 September 2023. The Contractor has generally implemented part of the mitigation measures as recommended. Two general site inspection on 7 & 13 September 2023 was conducted by Environmental Protection Department-Regional Office (North) (EPD-RNG).

3. Air Quality Monitoring

3.1 Construction Dust

3.1.1 Monitoring Requirement

3.1.1.1 In accordance with the 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 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 detailed monitoring schedule is shown in Appendix C. 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
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.

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
AM1, AM2, AM3	24-hr TSP	1 time per 6 days

3.1.3 Monitoring Equipment

3.1.3.1 High volume samplers (HVSs) were used for carrying out 24-hr TSP monitoring. For 1-hr TSP monitoring, direct reading dust meters were used to measure 1-hr TSP levels.

3.1.3.2 Table 3-3 summarises the equipment that were used in the dust monitoring programme. The calibration certificates are shown in Appendix D.

Table 3-3 Dust Monitoring Equipment

Equipment	Model	Expiry Date	Monitoring Station
High Volume Sampler (HVS)	TE-5170X (S/N: 1105)	3 Nov 2023	AM1
	TE-5170X (S/N: 1106)		AM2
	TE-5170X (S/N: 1856)		AM3
Direct Reading Dust Meter	Sibata LD-5R (S/N: 0Z4545)	2 Dec 2023	AM1 to AM3
	Sibata LD-5R (S/N: 882106)
	Sibata LD-5R (S/N: 882110)
	Sibata LD-5R (S/N: 942532)
Calibration Kit (for HVS)	TE-5025A (S/N: 4166)	19 Jun 2024	AM1 to AM3

Remarks:

The Expiry Date of Calibration Kit (for HVS) reflected that the calibration certificate fulfils the bi-monthly calibration interval requirement for the HVS.

3.1.4 Monitoring Methodology

1-hr TSP Monitoring

3.1.4.1 The 1-hr TSP impact monitoring was conducted using a portable direct reading dust meter.

Measuring Procedures

3.1.4.2 The measuring procedures of the 1-hr dust meter has been undertaken in accordance with the Manufacturer’s Instruction Manual as follows:

Procedure of starting monitoring

• Place the 1-hr dust meter at least 1.3m above ground;

• Turn on the “On/Off” button at the side of instrument. Program will be changed to “BG” mode and leave it for 1 minute.

• Pull out the Suction adaptor and turn the button at the side. Cover with hand at the suction adaptor measure the background for 10 seconds.

• Press “ UP” and “ DOWN” for choosing “SPAM Mode” for SPAM Measurement.

• Press “Up” and “Down” to select “Measurement Mode” with 60 minutes interval and unit in ug/m3.

• Press “Start/Stop” to start monitoring.

Procedure of setting measurement timer

• Press “Up” or “Down” to find “Setting LOG”.

• Select “Record Cycle” and change the record time subject to different project requirement. For example, setting the record cycle as 60 minutes for normal operation.

• Press “ESCAPE” back to the main page.

• Press “Up” or “Down” to access “Measurement Timer” and select “Measurement time” to change the time to 3 hours.

• Information such as sampling date, time, count value and site condition will be recorded during the monitoring period.

Calibration & Maintenance

3.1.4.3 The direct reading dust meters will be verified against calibrated high volume samples (HVSs) annually. A 2-day, three 3-hour measurement results per day from direct reading dust meter will be taken to compare with the sampling results from the HVS. The correlation between the direct reading dust meter and the HVS will then be concluded. By accounting for the correlation factor, the direct reading dust meter will be considered to achieve comparable results as that of the HVS.

3.1.4.4 All digital dust indicator will be calibrated with on-site HVS annually. Calibration certificate will be provided after calibration. The Calibration process shall eyewitness with the representative of ET & IEC.

Quality Audit

3.1.4.5 Checklist of regular checking for digital dust meter will be conducted bi-weekly by environmental technician to ensure the all-digital dust meter are in good condition and submitted to supervisors. All checklists will be kept by supervisors.

3.1.4.6 Logbook is provided to environmental technician record the transferal of equipment to other colleagues, reporting to supervisors is required.

24-hr TSP Monitoring

3.1.4.7 The 24-hr TSP monitoring has been conducted using a High-Volume Sampler (HVS).

Measuring Procedures

3.1.4.8 The HVS has been set-up at the monitoring location with a fixed power supply for operation. The measuring procedures of the 24-hr TSP measurements has been undertaken in accordance with the specifications listed in the EM&A Manual. Each HVS includes a motor, a filter holder, a flow controller and a sampling inlet in accordance with the performance specification of the USEPA Standard Title 40, Code of Federation Regulations Chapter 1 (Part 50), Appendix B. The measuring procedures of the 24-hr dust meter was undertaken in accordance with the Manufacturer’s Instruction Manual as follows:

• The power supply will be checked to ensure the HVS works properly;

• The filter holder and the area surrounding the filter will be cleaned;

• The filter holder will be removed by loosening the four bolts and a new filter on a supporting screen will be aligned carefully;

• The filter will be properly aligned on the screen so that the gasket formed an airtight seal on the outer edges of the filter;

• The swing bolts will be fastened to hold the filter holder down to the frame. The pressure applied should be sufficient to avoid air leakage at the edges;

• The shelter lid will be closed and secured with the aluminium strip;

• The HVS will be warmed-up to establish run-temperature conditions;

• A new flowrate record sheet will be set into the flow recorder;

• The programmable timer will be set for a sampling period of 24 hour, and the starting time, weather condition and the filter number will be recorded;

• The initial elapsed time will be recorded;

• At the end of sampling, the sampled filter will be removed carefully and folded in half-length so that only surfaces with collected particulate matter will be in contact;

• The sample will be placed in a clean plastic envelope and sealed;

• All monitoring information will be recorded on a standard data sheet; and

• The filters will be taken back to HOKLAS accredited laboratory for analysis.

3.1.4.9 In addition, site conditions and dust sources were recorded in a standard form for direct input into a database.

Calibration & Maintenance

3.1.4.10 The high volume motors and their accessories should be properly maintained, including routine motor brushes replacement and electrical wiring checking, to ensure that the equipment and a continuous power supply were in good working condition.

3.1.4.11 Initial calibration of dust monitoring equipment shall be conducted upon installation and thereafter at bi-monthly intervals. The transfer standard shall be traceable to the internationally recognized primary standard and be calibrated annually.

The detail procedure of calibration of HVS is listed below:

1. Make sure the electrical circuit is connected properly. The motor should be directly connected to the power source.

2. Open the top cover and unlock the screws at the four corners.

3. Install the orifice and adapter plate to high volume air sample. Tighten the nut securely. Turn the knob of orifice clock-wise to close the four holes on the bottom open.

4. Hold the water manometer on the cover of mass flow controller vertically. Connect one side of a water manometer to the pressure tap on the side of the orifice with a rubber vacuum tube. Leave opposite side of the manometer open to the atmosphere.

5. Turn on the sampler

6. Five flow rates are achieved by changing the different plates to change the resistance. Record the manometer reading and the reading from continuous flow recorder. At least 5 sets of data should be recorded.

3.1.4.12 The Calibration process shall eyewitness with the representative of ET & IEC.

3.1.5 Monitoring Results

3.1.5.1 The impact dust monitoring results are summarized in Table 3-4 and Table 3-5. The monitoring data together with graphical presentations are presented in Appendix E and Appendix F.

Table 3-4 Summary of Impact 1-hr TSP Monitoring Results

Dust Monitoring Station	Average 1-hr TSP Concentration, µg/m³ (Range)	Action Level, µg/m³	Limit Level, µg/m³
AM1	44 (36 – 54)	>285	>500
AM2	39 (36 – 42)	>279	>500
AM3	45 (36 – 53)	>285	>500

Table 3-5 Summary of Impact 24-hr TSP Monitoring Results

Dust Monitoring Station	Average 24-hr TSP Concentration, µg/m³ (Range)	Action Level, µg/m³	Limit Level, µg/m³
AM1	40 (32 – 48)	>164	>260
AM2	41 (30 – 53)	>152	>260
AM3	51 (36 – 67)	>163	>260

3.1.5.2 The Summary of Impact 1-hr & 24-hr TSP Exceedance are shown in Table 3-6. The Notification of Environmental Quality Limits Exceedances are presented in Appendix G.

Table 3-6 Summary of Impact 1-hr & 24-hr TSP Exceedance during the reporting period

Dust Monitoring Station	Parameter	1-hr TSP	24-hr TSP	Exceedance Count
Dust Monitoring Station	Level Exceedance	1-hr TSP	24-hr TSP	Exceedance Count
AM1	Action	0	0	0
AM1	Limit	0	0	0
AM2	Action	0	0	0
AM2	Limit	0	0	0
AM3	Action	0	0	0
AM3	Limit	0	0	0

Remarks: * equal to non-project related

3.1.5.3 No Action / Limit Level exceedance for 1-hr & 24-hr TSP impact monitoring at AM1, AM2 & AM3 was recorded during the period.

3.1.6 Wind Data Monitoring

3.1.6.1 During the monitoring period. wind data from existing weather station in the vicinity of the designated monitoring location, i.e Ta Kwu Ling station operated by Hong Kong Observatory was adopted. It is considered that the wind data obtained from Ta Kwu Ling station are representative of the Project area and could be used for the construction dust monitoring programme for the Project. The results for wind data monitoring are presented in Appendix H.

3.1.7 Recommended Mitigation Measures

3.1.7.1 The recommended dust mitigation measures from EIA report are listed as followed:

• The contractor shall follow the procedures and requirements given in the Air Pollution Control (Construction Dust) Regulation.

• Dust emission from construction vehicle movement is confined within the worksites area.

• Watering facilities will be provided at every designated vehicular exit point.

• Good site practice is recommended during construction phase.

3.1.8 Event and Action Plan

3.1.8.1 Should non-compliance of the criteria occur, action in accordance with the action plan in Table 3-7 shall be carried out.

Table 3-7 Event and Action Plan for dust impact

4 Noise Monitoring

4.1 Monitoring Requirement

4.1.1 In accordance with the EM&A manual, noise impact monitoring shall be carried out at 2 monitoring stations NM1 and NM2 once a week during normal construction working hour (0700-1900 Monday to Saturday). The minimum logging interval shall be 30 minutes with average of 6 consecutive Leq 5 mins. L10 and L90 shall also be measured at 5 mins intervals.

4.2 Monitoring Locations, Parameters and Frequency

4.2.1 According to the EM&A Manual, two monitoring stations namely NM1 and NM2 are selected for the impact monitoring.

4.2.2 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 NM1 and NM2, the adjusted stations at NM1a and NM2a were agreed with IEC prior to the baseline and impact monitoring. The noise monitoring locations are summarized in Table 4-1 and shown in Figure 2.

4.2.3 The detailed monitoring schedule is shown in Appendix C. The frequency and duration are shown in Table 4-2.

Table 4-1 Noise Monitoring Locations

Monitoring Station	Representative for	Type of Measurement
Monitoring Station	Representative for	Type of Measurement
NM1a	Wo Keng Shan Tsuen	Free field
NM2a	Lin Ma Hang	Free field

Remarks:

NM1 Wo Keng Shan Tsuen & NM2 Lin Ma Hang are the noise 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 noise monitoring locations (NM1a & NM2a) 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 comments received from EPD. Noise measurement at NM1a & NM2a will be considered as free-field and a correction of +3dB(A) would be made to the noise monitoring results.

Due to the adjustment of the location of NM1 & NM2 to NM1a & NM2a, the measured noise levels at NM1 & NM2 would represent the noise levels at NM1 & NM2.

Table 4-2 Noise Monitoring Parameters, Frequency and Duration

Monitoring Station	Parameter	Frequency and Duration
NM1a and NM2a	L_Aeq (30mins) average of 6 consecutive L_eq (5min); L10 (5min) & L90 (5min)	Once a week during normal construction working hour (0700-1900 Monday to Saturday)

4.3 Monitoring Equipment

4.3.1 Integrating Sound Level Meters (SLMs) was used for noise impact monitoring. The SLM complied with International Electrotechnical Commission Publications 651:1979 (Type 1) and 804:1985 (Type 1) specifications shall be used for carrying out noise monitoring. The accuracy of the SLM was checked using an acoustic calibrator generating a known sound pressure level at a known frequency. Measurements shall be accepted as valid only if the calibration level from prior to and after the noise measurement agrees to within 1.0dB.

4.3.2 A portable wind speed meter was used for measuring wind speeds in m/s.

4.3.3 Table 4-3 summarises the equipment that have been used in the impact noise monitoring programme. The calibration certificates are shown in Appendix D.

Table 4-3 Noise Monitoring Equipment

Equipment	Model	Expiry Date
Sound Level Meter	NTi XL2 (S/N: A2A-13663-F0)	14 Feb 2024
Sound Level Meter	NTi XL2 (S/N: A2A-17638-E0)	3 Apr 2024
Acoustic Calibrator	Rion NC-75 (S/N: 35124530)	1 Nov 2023
Anemometer	RS PRO RS-90 (S/N: 210722208)	12 Feb 2025

4.4 Monitoring Methodology

4.4.1 The details of noise measurement procedures are described as follows:

• Free-field measurements were made at the monitoring locations.

• For free field, the Sound Level Meter was set at a height of 1.2 m above the ground. The battery condition was checked to ensure the proper functioning of the meter.

• Parameters such as frequency weighting, the time weighting and the measurement time were set as follows:

• Frequency weighting: A

• Time weighting: Fast

• Measurement time: 5 minutes (Leq (30-min) would be determined for daytime noise by calculating the logarithmic average of six Leq (5min) data.)

• Prior to and after each noise measurement, the meter was calibrated using a Calibrator for 94.0 dB at 1000 Hz. If the difference in the calibration level before and after measurement was more than 1.0 dB, the measurement would be considered invalid and repeat of noise measurement would be required after recalibration or repair of the equipment.

• Noise measurement should be paused during periods of high intrusive noise if possible and observation shall be recorded when intrusive noise is not avoided.

• At the end of the monitoring period, the Leq, L10 and L90 shall be recorded. In addition, site conditions and noise sources should be recorded on a standard record sheet .

• All noise monitoring will be conducted with the wind speed not exceeding 5m/s and no gusts exceeding 10m/s.

Calibration & Maintenance

4.4.2 The sound level meter, sound calibrator, and anemometer should be properly maintained to ensure that the equipment and a continuous power supply were in good working condition. The sound level meter and sound calibrator will be calibrated annually. The anemometer will be calibrated two years interval in accordance with the HOKLAS Supplementary Criteria No.2. Calibration certificate will be provided after calibration.

4.4.3 The microphone head of the sound level meter and calibrator should be cleaned with a soft cloth at quarterly intervals.

4.5 Monitoring Results

4.5.1 The impact noise monitoring results are summarized in Table 4-4. The monitoring data together with graphical presentations are presented in Appendix E and Appendix F.

Table 4-4 Summary of Noise Monitoring Results during normal working hours (07:00-19:00, Monday to Saturday)

Noise Monitoring Station

Average Leq, 30min, dB(A) (Range)

Action Level

Limit Level

NM1a

58.3

(56.6 – 59.3)

When one documented complaint is received

>75dB(A)

NM2a

53.6

(49.8 – 54.7)

Remark:

(1) * A correction of +3 dB(A) was made to the free field measurements

(2) If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the Noise Control Authority have to be followed.

4.5.2 No exceedance of Action and Limit Levels of construction noise was recorded during the reporting period. Therefore, there was no record of Notification of Environmental Quality Limits Exceedance in the Appendix G.

4.5.3 No particular observations are identified near the monitoring stations during the monitoring period.

4.6 Recommended Mitigation Measures

4.6.1 The recommended noise mitigation measures from EIA report are listed as followed:

1. Use of good site practices to limit noise emissions by considering the following:

• Only well-maintained plant should be operated on-site and plant should be serviced regularly during the construction programme;

• Machines and plant (such as trucks, cranes) that may be in intermittent use should be shut down between work periods or should be throttled down to a minimum;

• Plant known to emit noise strongly in one direction, where possible, be orientated so that the noise is directed away from nearby NSRs;

• Silencers or mufflers on construction equipment should be properly fitted and maintained during the construction works;

• Mobile plant should be sited as far away from NSRs as possible and practicable;

• Material stockpiles, mobile container site officer and other structures should be effectively utilised, where practicable, to screen noise from on-site construction activities.

2. Select “Quiet plants” which comply with the BS 5228 Part 1 or TM standards.

4.7 Event and Action Plan

4.7.1 Should non-compliance of the criteria occurs, action in accordance with the action plan in Table 4-5 shall be carried out.

5 Water Quality Monitoring

5.1 Groundwater Monitoring

5.1.1 Monitoring Requirement

5.1.1.1 In accordance with the EM&A manual, groundwater quality monitoring shall be carried out at least once per month at the 35 designated groundwater monitoring locations (i.e ED1 to ED35). Based on the existing construction programme, site clearance and site formation works for future landfilling area are in progress. The groundwater monitoring locations ED1 to ED35 will be installed after the site formation work of the landfilling area. No groundwater monitoring is required before the completion of site formation work of the landfilling area.

5.2 Surface Water Monitoring

5.2.1 Monitoring Requirement

5.2.1.1 In accordance with the EM&A manual, impact surface water quality monitoring was carried out at the two designated surface water discharge points (i.e WM1 and WM2) for once per month from commencement of construction works of the Project. An Additional impact surface water quality monitoring was carried out at WM2 and GR3 (EPD Monitoring Location) based the environmental complaint received on 14 September.

5.2.2 Monitoring Locations, Parameters and Frequency

5.2.2.1 Impact surface water monitoring was carried out at WM1 and WM2. Additional surface water monitoring was carried out at WM2 and GR3 (EPD Monitoring Location). The monitoring locations are indicated in Table 5-1 and Figure 2.

5.2.2.2 The monitoring parameters, frequency and duration of surface water quality monitoring are summarized in Table 5-2. The additional parameters, frequency and duration of surface water quality monitoring are summarized in Table 5-3. Detailed monitoring schedule is presented in Appendix C.

Table 5-1 Surface water quality monitoring locations

Monitoring Station	Location	Coordinates (HK Grid)
Monitoring Station	Location	Easting	Northing
WM1	Upstream of Lin Ma Hang River	836665	845020
WM2	Ping Yuen River	835592	844186
GR3*	Ping Yuen River	835361	844134

Remarks:

“*” The monitoring location only conducted based on the environmental complaint.

Table 5-2 Surface water quality monitoring Parameters, Frequency and Duration

Parameter	Frequency
pH, Electrical conductivity, DO, Turbidity, SS, Alkalinity, COD, BOD₅, TOC, Ammonia-nitrogen, TKN, Nitrate, Sulphate, Sulphite, Phosphate, Chloride, Sodium, Mg, Ca, K, Fe, Ni, Zn, Mn, Cu, Pb, Cd, Coliform Count, Oil and Grease	Once per month

Table 5-3 Additional surface water quality monitoring Parameters, Frequency and Duration

Parameter	Frequency
pH, Electrical conductivity, DO, Turbidity, SS, COD, BOD₅, Ammonia-nitrogen, Chloride, Fe, Zn, and Coliform Count	Based on the case of Environmental Complaint

5.2.3 Monitoring Equipment

5.2.3.1 The measurements of pH, electrical conductivity (EC), DO, turbidity, water temperature and air temperature were undertaken in situ. In situ monitoring instruments in compliance with the specifications listed under Section 5.5 of the EM&A Manual were used to undertake the surface water quality monitoring for the Project. Table 5-4 summarises the equipment used in the impact surface water quality monitoring works. Copies of the calibration certificates are attached in Appendix D.

Table 5-4 Surface Water Quality Monitoring Equipment

Equipment

Model

Expiry Date

Water Quality Meter

HORIBA U-53 (S/N: PPHNOMXY)

21 Nov 2023

Water Flow Meter

Global Water FP211

(S/N: 22K100859)

6 Nov 2023

Remarks:

“TBC” equal to To Be Confirm

5.2.4 Summary of Surface Water Quality Monitoring Procedure

Operational/ Analytical Procedures

5.2.4.1 In general, water samples were collected from within 500 mm of the water surface. Water was collected by a small clean open-mouthed bucket with the lip pointing upstream. Usually, water was then transferred to the sample bottles until they were filled to the top with no remaining air space before the lid was securely screwed on. For samples that were preserved with acid or alkalis prior to transport to the laboratory, the samples bottles were filled to the level specified by the analytical laboratory.

5.2.4.2 Analyses shall be carried out in accordance with methods described in ASTM or APHA -AWWA-WEF Standard.

Laboratory Analytical Methods

5.2.4.3 The testing of parameters presented in Table 5-5 for all stations was conducted by ALS Technichem (HK) Pty Ltd. (HOKLAS Registration No. 066). Comprehensive quality assurance and control procedures were in place in order to ensure quality and consistency in results. The detection limits are provided in Table 5-5.

Table 5-5 Surface Water Monitoring Detection Limits and Limit of Reporting

Parameters	Detection Limit (in EM&A Manual)	Limit of Reporting	Method Reference
pH	0.1	0.1	APHA 4500 H+ B
Electrical conductivity	1 mS/cm	1 mS/cm	APHA 2510 B
Alkalinity	1 mg/L	1 mg/L	APHA 2320 B
COD	10 mg/L	5 mg/L	APHA 5220 C
BOD₅	3 mg/L	2 mg/L	APHA 5210 B
TOC	1 mg/L	1 mg/L	APHA 5310 B
SS	0.1 mg/L	0.1 mg/L	APHA 2540 D
Ammonia-nitrogen	0.2 mg/L	0.01 mg/L	APHA 4500 NH3 G
TKN	0.4 mg/L	0.1 mg/L	APHA 4500Norg: D
Nitrate	0.5 mg/L	0.01 mg/L	APHA 4500 NO3 I
Sulphate	5 mg/L	1 mg/L	USEPA 375.4
Sulphite	2 mg/L	2 mg/L	APHA 4500 SO3 B
Phosphate	0.01 mg/L	0.01 mg/L	APHA 4500-P B & F
Chloride	0.5 mg/L	0.5 mg/L	USEPA 325.1
Sodium	50 mg/L	50 mg/L	USEPA 6010C
Mg	50 mg/L	50 mg/L	USEPA 6010C
Ca	50 mg/L	50 mg/L	USEPA 6010C
K	50 mg/L	50 mg/L	USEPA 6010C
Fe	50 mg/L	10 mg/L	USEPA 6010C
Ni	1 mg/L	1 mg/L	USEPA 6020A
Zn	10 mg/L	10 mg/L	USEPA 6020A
Mn	1 mg/L	1 mg/L	USEPA 6020A
Cu	1 mg/L	1 mg/L	USEPA 6020A
Pb	1 mg/L	1 mg/L	USEPA 6020A
Cd	0.2 mg/L	0.2 mg/L	USEPA 6020A
Coliform Count	1 cfu/ 100mL	1 cfu/ 100mL	DoE section 7.8, 7.9.4.1 & 3
Oil and Grease	5 mg/L	5 mg/L	APHA 5520 B

QA/ QC Requirements

5.2.4.4 All in situ monitoring instruments were checked, calibrated and certified by a laboratory accredited under HOKLAS or other international accreditation scheme before use, and subsequently re-calibrated at the intervals according to manufacturer’s requirement throughout all stages of the surface water quality monitoring programme. Calibration of temperature, DO, salinity, pH and turbidity is conducted in three-month interval. Calibration of water flow is conducted annually. Responses of sensors and electrodes were checked with certified standard solutions before each use. Calibration for a DO meter was carried out before measurement according to the instruction manual of the equipment model. For the on-site calibration of field equipment, the requirements of the BS 1427:2018, "Guide to on-site test methods for the analysis of waters" was observed.

Decontamination Procedures

5.2.4.5 Water sampling equipment used during the course of the monitoring programme was decontaminated by manual washing and rinsed with clean distilled water after each sampling location.

Sampling Management and Supervision

5.2.4.6 All sampling bottles were labelled with the sample ID (including the indication of sampling station), laboratory number and sampling date. Water samples were dispatched to the testing laboratory for analysis as soon as possible after the sampling. All samples were stored in a cool box and kept at less than 4°C but without frozen. All water samples were handled under chain of custody protocols and relinquished to the laboratory representatives at locations specified by the laboratory. The laboratory determination works started within 24 hours after collection of water samples.

Quality Control Measures for Sample Testing

5.2.4.7 The samples testing was performed by ALS Technichem (HK) Pty Ltd. The following quality control programme was performed by the laboratory:

· One method blank; and

· One sample duplicate.

5.2.5 Monitoring Results

5.2.5.1 Impact surface water quality monitoring was conducted at WM1 and WM2 on 20 September 2023. The additional surface water quality monitoring was conducted at WM2 and GR3 (EPD Monitoring Location) on 28 September 2023. No adverse weather was observed during reporting period. The detailed monitoring schedule is shown in Appendix C.

5.2.5.2 The summary of monitoring results is presented in Table 5-6 and Table 5-7. Detailed monitoring results at each monitoring station and graphical presentations of surface water quality (DO, SS and Turbidity) at the monitoring stations are given in Appendix E and Appendix F.

5.2.5.3 No particular observations are identified near the monitoring stations during the monitoring period.

Table 5-6 Summary of Impact Surface Water Monitoring Results

Monitoring Parameter(s)	Monitoring Station
	WM1			WM2
	Monitoring Results	Action Level	Limit Level	Monitoring Results	Action Level	Limit Level
pH	7.2	>7.7	>7.8	7.2	>7.6	>7.7
DO in mg/L	7.8	<7.4	<4	7.6	<5	<4
Turbidity in NTU	4.3	>9.2	>9.5	12.0	>108.3	>108.9
Electrical Conductivity in μS/cm	47	---	---	125	---	---
SS in mg/L	3.0	>9.7	>11.4	7.6	>94.5	>94.7
Alkalinity in mg/L	11	---		31	---
COD in mg/L	9			6
BOD₅ in mg/L	<2			<2
TOC in mg/L	2			2
Ammonia-nitrogen in mg/L	0.04			0.13
TKN in mg/L	0.4			0.3
Nitrate in mg/L	0.05			0.24
Sulphate in mg/L	4			20
Sulphite in mg/L	<2			<2
Phosphorus in mg/L	0.02			<0.01
Chloride in mg/L	6			4
Sodium in µg/L	6340			4680
Magnesium in µg/L	430			1290
Calcium in µg/L	<0.2			<0.2
Potassium in µg/L	680			1450
Iron in µg/L	270			670
Nickel in µg/L	<1			<1
Zinc in µg/L	14			10
Manganese in µg/L	32			563
Copper in µg/L	1			<1
Lead in µg/L	<1			1
Cadmium in µg/L	<0.2			<0.2
Coliform Count in cfu/100mL	240			290
Oil and Grease in mg/L	<5			<5

Table 5-7 Summary of Additional Impact Surface Water Monitoring Results

Monitoring Parameter(s)	Monitoring Station
	WM2			GR3 (EPD Monitoring Location)
	Monitoring Results	Action Level	Limit Level	Monitoring Results
pH	7.5	>7.6	>7.7	7.4
DO in mg/L	7.8	<5	<4	7.6
Turbidity in NTU	8.8	>108.3	>108.9	13.1
Electrical Conductivity in μS/cm	71	---	---	108
SS in mg/L	5.5	>94.5	>94.7	4.9
COD in mg/L	<5			6
BOD₅ in mg/L	<2			<2
TOC in mg/L	2			2
Ammonia-nitrogen in mg/L	0.12			0.10
Iron in µg/L	910			670
Zinc in µg/L	13			20
Coliform Count in cfu/100mL	3400			380

5.2.5.4 No exceedance of Action and Limit Level of surface water quality at designated locations was recorded during the reporting period. The Notification of Environmental Quality Limits Exceedance is presented in Appendix G.

5.2.5.5 The Summary of Impact Surface Water Quality Exceedance are shown in Table 5-8.

Table 5-8 Summary of Impact Surface Water Quality Exceedance during the reporting period

Water Quality Monitoring Station	Parameter	pH	DO	Turbidity	SS	Exceedance Count
Water Quality Monitoring Station	Level Exceedance	pH	DO	Turbidity	SS	Exceedance Count
WM1	Action	0	0	0	0	0
WM1	Limit	0	0	0	0	0
WM2	Action	0	0	0	0	0
WM2	Limit	0	0	0	0	0

Remarks:

(1) # The investigation results will be presented in the report after the investigation.

(2) * equal to non-project related

5.2.6 Recommended Mitigation Measure

5.2.6.1 The recommended surface water mitigation measures from EIA report are listed as followed:

• Channels (both temporary and permanent drainage pipes and culverts), earth bunds or sand bag barriers should be provided on site to direct stormwater to silt removal facilities.

• The overall slope of the site should be kept to a minimum to reduce the erosive potential of surface water flows.

• The design of efficient silt removal facilities should be based on the guidelines in Appendix A1 of ProPECC PN 1/94, which states that the retention time for silts and sediment traps should be 5 minutes under maximum flow conditions.

• All vehicles and plant should be cleaned before leaving a construction site to ensure no earth, mud, debris and the like is deposited by them on roads.

• Construction solid waste, debris and rubbish on site should be collected, handled and disposed of properly to avoid water quality impacts.

• Measures should be taken to prevent the washing away of construction materials, soil, silt or debris into any drainage system.

5.2.7 Implementation of the temporary surface water drainage system

5.2.7.1 The site inspection and audits were carried out by ER, IC, ET & Contractor on weekly basis (IEC on monthly basis) to monitor the construction progress, maintenance performance and effectiveness of temporary surface water drainage system in the Project Site to fulfil the FEP Condition 2.13, EP Condition 2.15 and the section 5.2.1.1 of the EM&A Manual. The layout of the temporary surface water drainage system is presented in Appendix Q. The joint environmental site inspection records are shown in Appendix J.

5.2.7.2 All construction site runoff would be treated by silt removal facilities to fulfil the requirement of WPCO licenses from the project. Construction site runoff from the project after treatment was discharged to Ping Yuen River. The surface water monitoring results at WM2 (after the discharge point of silt removal facilities) can reflect the water quality at Ping Yuen River during the reporting period.

5.2.8 Event and Action Plan

5.2.8.1 Should non-compliance of the criteria occurs, action in accordance with the action plan in Table 5-9 shall be carried out.

Table 5-9 Event and Action Plan for Water Quality

Event

IEC

Contractor

Action level being exceeded by one sampling day

• Repeat in situ measurement to confirm findings

• Identify source(s) of impact

• Prepare Notification of Exceedance

• Inform IEC and Contractor

• Check monitoring data, all plant, equipment and Contractor’s working methods

• Repeat measurement on next day of exceedance

• Verify Notification of Exceedance

• Check monitoring data and Contractor’s working methods

• Rectify unacceptable practice

• Amend working methods if appropriate

Action level being exceeded by two or more consecutive sampling days

• Repeat in situ measurement to confirm findings

• Identify source(s) of impact

• Prepare Notification of Exceedance

• Inform IEC and Contractor

• Check monitoring data, all plant, equipment and Contractor’s working methods

• Discuss with Contractor and IEC for remedial measures

• Ensure mitigation measures are implemented

• Increase the monitoring frequency to daily until no exceedance of Action level

• Repeat measurement on next day of exceedance

• Verify Notification of Exceedance

• Check monitoring data and Contractor's working method

• Discuss with ET and Contractor on possible remedial actions

• Review the proposed mitigation measures

• Supervise the implementation of mitigation measures

• Submit proposal of additional mitigation measures to IEC of notification

• Implement the agreed mitigation measures

• Amend proposal if appropriate

Event

IEC

Contractor

Limit Level being exceeded by one sampling day

• Repeat in situ measurement to confirm findings

• Identify source(s) of impact

• Prepare Notification of Exceedance

• Inform IEC and Contractor;

• Check monitoring data, all plant, equipment and Contractor's working methods

• Discuss mitigation measures with IEC and Contractor

• Ensure mitigation measure are implemented

• Verify Notification of Exceedance

• Check monitoring data submitted By ET and Contractor’s working method

• Discuss with ET and Contractor on possible remedial actions

• Review the proposed mitigation measures

• Supervise the implementation of mitigation measures

• Critically review the working method

• Rectify unacceptable practice

• Take immediate corrective actions to avoid further exceedance

• Submit proposal of mitigation measures to IEC

• Implement the agreed mitigation measures

•

Limit level being exceeded by two or more consecutive sampling days

• Repeat in situ measurement to confirm findings

• Identify source(s) of impact

• Prepare Notification of Exceedance

• Inform IEC, contractor and EPD

• Check monitoring data, all plant, equipment and Contractor's working methods

• Discuss mitigation measures with IEC and Contractor

• Ensure mitigation measure are implemented

• Verify Notification of Exceedance

• Check monitoring data submitted by ET and Contractor’s working method

• Discuss with ET and Contractor on possible remedial actions

• Review the proposed mitigation measures

• Supervise the implementation of mitigation measures

• Critically review the working method

• Rectify unacceptable practice

• Take immediate corrective actions to avoid further exceedance

• Submit proposal of mitigation measures to IEC

• Implement the agreed mitigation measures

• Resubmit proposals if problem still not under control

• Slow down or to stop relevant activity until exceedance is abated

6 Waste Management

2.1

6.1.1 Wastes generated from this Project include inert construction and demolition (C&D) materials and non-inert C&D materials. Non-inert C&D materials were made up of general refuse, steels and paper/cardboard packaging materials. Steel materials generated from the Project were also grouped into non-inert C&D materials as the materials were not disposed of with other inert C&D materials. With reference to relevant handling records and trip tickets of this Project, the quantities of different types of waste generated in the reporting month are summarised in Appendix I.

6.1.2 A total of 42,676 tonnes of C&D materials was reused at alternative disposal ground (NENT Landfill) during the reporting period. No Yard waste (collected to Y-Park) was generated during the reporting period. A total of 33.38 tonnes of general refuse and No non-recyclable yard waste was generated during the reporting period. The general refuse generated from the Project were disposed of at the NENT Landfill.

6.1.3 The recommended waste management mitigation measures from EIA report are listed as followed:

• Implement a trip-ticket system to ensure that the movement of C&D materials are properly documented and verified in accordance with DEVB TC(W) No. 6/2010.

• Concrete and masonry should be used as general fill and steel reinforcement bars can be used by scrap steel mills.

• Proper areas should be designated for waste segregation and storage wherever site conditions permit.

• Maximise the use of reusable steel formwork to reduce the amount of C&D material.

• Maintain temporary stockpiles and reuse excavated fill material for backfilling and reinstatement.

• On-site sorting and segregation facility of all type of wastes is considered as one of the best practice in waste management and hence, should be implemented in all projects generating construction waste.

• The sorted public fill and C&D waste should be properly reused.

• Excavated slope, stockpiled material and bund walls should be covered by tarpaulin until used in order to prevent wind-blown dust during dry weather, and to reduce muddy runoff during wet weather.

7 Landfill Gas Monitoring

7.1 Monitoring Requirement during Construction

Monitoring for Construction Works

7.1.1 Intrinsically safe portable gas detectors should be used during or when working in any confined spaces, which have the potential for presence of LFG and risk of explosion or asphyxiation. The monitoring equipment should alarm, both audibly and visually, when the concentrations of the following gases were exceeded:

· CH₄: >10% Lower Explosion Limit (LEL);

· CO₂: >0.5%; and

· O₂: <18% by volume.

7.2 Monitoring Locations

7.2.1 During the construction works within the NENT Landfill Extension site with excavation of 1m deep or more, LFG concentrations should be monitored before entry and periodically during the progress of works. If drilling is required, the procedures for safety management and working procedures as stipulated in EPD’s Landfill Gas Hazard Assessment – Guidance Note should be strictly adopted.

7.2.2 The monitoring frequency and areas to be monitored should be set down prior to commencement of groundworks by the Safety Officer. All measurements in excavations should be made with the monitoring tube located not more than 10mm from the exposed ground surface. Monitoring of excavations should be undertaken as follows:

7.2.3 For excavation works deeper than 1m, measurements should be made:

• at ground surface prior to excavation;

• immediately before any worker enters the excavation;

• at the beginning of each working day for the entire period the excavation remains open; and

• periodically through the working day whilst workers are in the excavation.

7.2.4 For excavation between 300mm and 1m deep, measurements should be made:

• directly after the excavation has been completed; and

• periodically whilst the excavation remains open.

7.2.5 For excavations less than 300mm deep, monitoring may be omitted, at the discretion of the Safety Officer.

7.2.6 The locations of LFG monitoring locations during reporting period are shown in Table 7-1. The Site formation layout plan is shown in Figure 2 and the Layout of LFG monitoring locations is presented in Figure 3.

Table 7-1 Locations of LFG Monitoring during reporting period

Monitoring Location	Type of works
Portion A +50 mpD to 70 mpD Platform	Excavation Works

7.3 Monitoring Equipment

7.3.1.1 Gas Detector was used for carrying out LFG monitoring for Construction Works. Table 7-2 summarises the equipment that were used in the LFG monitoring programme. The calibration certificates are shown in Appendix D. The detection limits are provided in Table 7-3.

Table 7-2 LFG Monitoring Equipment

Monitoring Parameters	Equipment	Model	Expiry Date
CH₄ & O₂	Gas Detector	PS200 (S/N: 373075)	16 Nov 2023
CO₂	Gas Analyser	GEM5000 (S/N: G505207)	30 Aug 2024

Table 7-3 Landfill Gas Monitoring Detection Limits

Parameters	Detection Limit
CH₄	1% LEL
O₂	0.1%
CO₂	0.1%

7.4 Event and Action Plan (EAP)

7.4.1 Should non-compliance of the criteria occur, action in accordance with the action plan in Table 7-4 shall be carried out.

Table 7-4 Action Plan for the monitoring during construction phase

Parameter	Monitoring Result	Action
Oxygen (O₂)	Action Level <19% O₂	Ventilate trench/void to restore O₂ to >19%
Oxygen (O₂)	Limit Level <18% O₂	Stop works Evacuate personnel/prohibit entry Increase ventilation to restore O₂ to >19%
Methane (CH₄)	Action Level >10% LEL*	Prohibit hot works Increase ventilation to restore CH₄ to <10% LEL
Methane (CH₄)	Limit Level >20% LEL*	Stop works Evacuate personnel/prohibit entry Increase ventilation to restore CH₄ to <10% LEL
Carbon dioxide (CO₂)	Action Level >0.5% CO₂	Ventilate to restore CO₂ to <0.5%
Carbon dioxide (CO₂)	Limit Level >1.5% CO₂	Stop works Evacuate personnel / prohibit entry Increase ventilation to restore CO₂ to <0.5%

* LEL: Lower Explosive Limit - concentrations in air below which there is not enough fuel to continue an explosion.

** This Action Level of CO₂ at 0.5% is set for reference only, assuming no CO₂ emission from a particular location.

Depending on the baseline CO₂ levels, the Action Level at a particular location will be changed.

7.5 Monitoring Results

7.5.1 The LFG monitoring was carried out two rounds (at the beginning of works in the morning and after lunch) at the working days. The monitoring period of each round of LFG monitoring is around 5 minutes.

7.5.2 The LFG monitoring was conducted at Portion A +50 mpD to 70 mpD Platform in September 2023 (Conducted on working days). The LFG monitoring results are summarized in Table 7-5.

Table 7-5 Summary of LFG Monitoring Results

LFG Monitoring Station	Monitoring Date	Monitoring Parameter(s)
		CH₄ in %	LEL in %/v	CO₂ in %	O₂ in %
		Average Monitoring Results
Portion A +50 mpD to 70 mpD Platform	4 Sep 2023	0	0	0	20.2
	5 Sep 2023	0	0	0	20.1
	6 Sep 2023	0	0	0	20.2
	7 Sep 2023	0	0	0	20.2
	9 Sep 2023	0	0	0	20.2
	11 Sep 2023	0	0	0	20.2
	12 Sep 2023	0	0	0	20.2
	13 Sep 2023	0	0	0	20.2
	14 Sep 2023	0	0	0	20.2
	15 Sep 2023	0	0	0	20.2
	16 Sep 2023	0	0	0	20.2
	18 Sep 2023	0	0	0	20.1
	19 Sep 2023	0	0	0	20.2
	20 Sep 2023	0	0	0	20.1
	21 Sep 2023	0	0	0	20.2
	22 Sep 2023	0	0	0	20.1
	23 Sep 2023	0	0	0	20.1
	25 Sep 2023	0	0	0	20.2
	26 Sep 2023	0	0	0	20.2
	27 Sep 2023	0	0	0	20.1
	28 Sep 2023	0	0	0	20.1
	29 Sep 2023	0	0	0	20.1
Action Level		>10% LEL	---	>0.5%** CO₂	<19%

* LEL: Lower Explosive Limit - concentrations in air below which there is not enough fuel to continue an explosion.

** This Limit Level of CO₂ at 0.5% is set for reference only, assuming no CO₂ emission from a particular location.

7.5.3 No exceedance of Limit Levels of LFG was recorded during the reporting period. Therefore, there was no record of Notification of Environmental Quality Limits Exceedance in the Appendix G.

7.5.4 No effect that arose from the other special phenomena and work progress of the concerned site was noted during the current monitoring month.

7.6 Recommended Mitigation Measures

7.6.1 The recommended landfill gas mitigation measures from EIA report are listed as followed:

• Special LFG precautions should be taken due to close proximity of NENT landfill extension site to existing landfill to avoid potential hazards of LFG exposure (ignition, explosion, asphyxiation, toxicity).

• Prominent safety warning signs should be erected on-site to alert all personnel and visitors of LFG hazards during excavation works.

• No smoking or burning should be permitted on-site.

• Prominent 'No smoking' and ‘No Naked Flames’ signs should be erected on-site.

• No worker should be allowed to work alone at any time in excavated trenches or confined areas on-site.

• Adequate fire fighting equipment should be provided on-site.

• Construction equipment should be equipped with vertical exhaust at least 0.6m above ground installed with spark arrestors.

• Electrical motors and extension cords should be explosion-proof and intrinsically safe for use on-site.

• ’Permit to Work' system should be implemented.

• Welding, flame-cutting or other hot works should be conducted only under ‘Permit to Work’ system following clear safety requirements, gas monitoring procedures and presence of qualified persons to supervise the works.

8 Landscape and Visual

8.1 Monitoring Requirement

3.1

8.1.1 In order to monitor the landscape and visual impact after providing mitigation measures effectively, all the specified and affected LCAs, LRs and VSRs should be monitored. Implementation of the mitigation measures during construction phase of the Project has been monitored through the regular site inspection/audit.

8.1.2 All relevant environmental mitigation measures listed in the approved EIA Report and the EM&A Manual and their implementation status are summarised in Appendix K.

8.2 Result and Observation

8.2.1 Measures to mitigate the landscape and visual impacts during the construction phase has been checked to ensure compliance with the intended aims of the measures within the reporting period. The progress of the engineering works are regularly reviewed on site to identify the earliest practical opportunities for the landscape works to be undertaken.

8.2.2 In order to monitor the landscape and visual impact after providing mitigation measures effectively, all the specified and affected LCAs, LRs and VSRs should be monitored. Implementation of the mitigation measures during construction phase of the Project has been monitored through the regular site inspection/audit.

9 Cultural Heritage

4.1

9.1.1 The Mitigation measures for preservation of the cultural landscape feature located within the project area was conducted before commencement of construction of the project based on the requirement of Survey Report and Mapping Records for Boulder Paths BP1 & 2 & Conditions of G2, G4, G5 G6, G7, G8, G14, G15, G25, G26 and G27 within NENTX.

9.1.2 The survey and mapping works carried out on 23 August 2022 and the verification works carried out on 23 August 2022 confirmed that both 2 boulder paths BP1 and BP2 are fall outside the site boundary and the Project area.

9.1.3 All the affected graves within the waste boundary have been removed in accordance with section 119(1) of the Public Health and Municipal Services Ordinance (Cap 132). Removal of the graves as shown on Figure 2 attached to the FEP was proven by the visit of graves on 8 July 2022. All the graves as shown on Figure 2 attached to the FEP were abandoned and removed and no mitigation or preservation measures is necessary.

9.1.4 The Survey Report and Mapping Records for Boulder Paths BP1 & 2 was certified by ET on 10 Oct 2022, was verified by IEC and submitted to EPD on 12 Oct 2022. The Conditions of G2, G4, G5 G6, G7, G8, G14, G15, G25, G26 and G27 within NENTX was certified by ET, was verified by IEC and submitted to EPD on 15 Oct 2022. No later than four weeks before commencement of construction of the project in accordance with Condition 2.4 of the FEP-01/292/2007.

9.1.5 Implementation of the mitigation measures such as permanent fencing to protect the boulder path and setting up warning notices during construction phase of the Project has been monitored through the regular site inspection/audit. The permanent fencing locations are shown in Appendix M. In case of any presence of undiscovered grave during construction phase, AMO will be informed as soon as possible.

10 Ecological Monitoring

5.1

10.1.1 The post-transplantation monitoring was conducted on 15 Sep 2023 based on the requirement of the approved Transplantation Proposal for Plant Species of Conservation Importance (Rev.1). The 14^th Post-transplantation Monitoring and Audit Report (15^th Sep 2023) presents the details of requirements, monitoring results and site inspection with photos. The site inspection photos are also summarized in Appendix N. During the reporting period, the numbers, measurements, and health conditions of the transplanted plant species are recorded.

10.1.2 The post-translocation monitoring has been completed in July 2023. No further post-translocation monitoring will be conducted in accordance with the requirements of the Revised Translocation Proposal for the Endemic Freshwater Crab Somanniathelphusa zanklon.

10.1.3 The details of requirements, monitoring results and site inspection with photos for the post-translocation monitoring and post-transplantation monitoring would be reported separately.

10.1.4 The milestone of the ecological monitoring is presented in Table 10-1. The softcopies of the submissions are provided in https://www.nentx-ema.com/ep-submissions/.

Table 10-1 Milestone of the Ecological Monitoring

Type of Monitoring	Monitoring Event No.	Monitoring Date
Post-transplantation Monitoring	1^st	24 Nov 2022
	2^nd	9 Dec 2022
	3^rd	21 Dec 2022
	4^th	13 Jan 2023
	5^th	26 Jan 2023
	6^th	8 Feb 2023
	7^th	24 Feb 2023
	8^th	20 Mar 2023
	9^th	21 Apr 2023
	10^th	12 May 2023
	11^th	16 Jun 2023
	12^th	18 Jul 2023
	13^th	11 Aug 2023
	14^th	15 Sep 2023
Post-translocation Monitoring	1^st (Aug 2022)	29 Aug 2022
	2^nd (Sep 2022)	28 Sep 2022
	3^rd (Oct 2022)	28 Oct 2022
	4^th (Nov 2022)	22 Nov 2022
	5^th (Dec 2022)	29 Dec 2022
	6^th (Jan 2023)	30 Jan 2023
	7^th (Feb 2023)	24 Feb 2023
	8^th (Mar 2023)	20 Mar 2023
	9^th (Apr 2023)	19 Apr 2023
	10^th (May 2023)	17 May 2023
	11^th (Jun 2023)	7 Jun 2023
	12^th (Jul 2023)	12 Jul 2023

11 Site Inspection and Audit

11.1.1 Site Inspection and audits were carried out by ET on weekly basis to monitor the implementation of proper environmental management practices and mitigation measures in the Project Site.

11.1.2 Weekly ET environmental site inspections were conducted in the reporting period on 04, 11, 18 & 25 August 2023. A joint environmental site inspection was carried out by the representatives of the ER, the Contractor, IEC and the ET on 18 September 2023. The joint environmental site inspection records are shown in Appendix J. There was no noncompliance recorded during the site inspections.

11.1.3 Major findings and recommendations are summarized as follows:

04 September 2023

Observation(s):

• Over loading of accumulated waste was found at the waste skip of Portion D. The contractor was recommended to increase the frequency of waste collection and the amount of waste skip to avoid over loading condition of waste skip at Portion D.

• Dust drift was found at the assess road of Portion A when vehicle moving. The contractor was advised to increase the frequency of water spraying at the assess road of Portion A.

• The exposed slope surfaces at Portion B2 were not covered by impervious sheets. The contractor was recommended to cover the exposed slope surfaces at Portion B2 by impervious sheet.

11 September 2023

Observation(s):

• Surface runoff should be intercepted to avoid direct discharge into the channel at Portion E3. The Contractor should review the effectiveness of setting up sandbag barriers and modify measures to prevent the discharge of surface runoff in both short term and long term. The Contractor was advised to stop the discharge of surface runoff to channel immediately by using any mitigation measures they found appropriate. In long term, the Contractor has been recommended to construct earth bund along the channel to prevent this situation happening again.

• The dusty stockpile in SBA should be covered with impervious sheet when the rainfall is forecast. The Contractor was advised to cover the stockpiles with impervious sheet when they are idle.

• The condition of silt fence in SBA should be reviewed after the heavy rainfall over the few days and should be replaced when it is broken. The broken or collapsed silt fence should be replaced and properly set up after the heavy rainfall from last week.

18 September 2023

Observation(s):

• The demolished tree, shrub or vegetation in Portion B2 should be covered with impervious sheets or placed within a shelter. The Contractor was reminded to cover the demolished tree, shrub or vegetation with impervious sheets or placed within a shelter.

• The dry PFA in Portion B2 should be covered entirely with impervious sheets. The Contractor was reminded to cover dry PFA entirely with impervious sheets.

• The metal plate at the vehicle entrance in Portion B2 should cover unpaved road surface in Portion B2. Vehicle entrance should be paved with concrete, bituminous materials, hardcore or metal plates, and kept clear of dusty materials.

• General refuse and non-inert waste should be stored in enclosed bins or compaction unit. General waste generated on-site should be stored in enclosed bins or compaction units separately from the construction and chemical wastes.

• Empty chemical containers in Portion E3 should be properly stored before the disposal. The Contractor was reminded to properly store empty chemical container before disposal.

• Sediment/ silt traps shall be incorporated in the temporary drainage system to enhance retention time for silt/s and traps of the silt removal facilities be 5 minutes under maximum flow conditions. The Contractor was advised to reconstruct the demolished sedimentation basin to act as silt trap and to achieve 5 minutes of retention time under maximum flow condition.

• The main haul road in Portion E4 was dry ad dusty. The Contractor was advised to schedule watering and recommended to install water sprinklers or mist spray in long term.

25 September 2023

Observation(s):

• The main haul road and work site should be wetted regularly to minimize the dust dispersion. The Contractor was reminded to switch on the water sprinklers along the haul road in SBA and to schedule watering for unpaved haul road and work area. The Contractor has been advised to increase the frequency of watering if necessary under the hot weather condition to minimize dust dispersion.

• Chemical spillage was observed at Portion E4 and chemical containers should be placed on the drip tray. The Contractor was reminded to dispose chemical waste and provide drip tray for all chemical containers.

• The exposed slope surface along the channel should be paved to reduce SS level in the wastewater. The Contractor was recommended to shotcrete the exposed slope surface along the channel to reduce SS level in the wastewater.

• The accumulated sand or silt in the outlet of the silt removal facility at Portion A should be removed. The Contractor was advised to clear the accumulated sand or silt in the outlet of the silt removal facility at Portion A.

11.1.4 Two general site inspection on 7 & 13 September 2023 were conducted by Environmental Protection Department-Regional Office (North) (EPD-RNG).

12 E nvironmental Non-conformance

11.1

12.1 Summary of Monitoring Exceedance

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

12.1.1 No exceedance of the Action Levels and Limit Level were recorded at designated monitoring stations during the reporting period. The Notification of Environmental Quality Limits Exceedance is presented in Appendix G.

12.2 Summary of Environmental Non-compliance

12.2.1 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.

12.3 Summary of Environmental Complaint

12.3.1 One complaint received on 14 September 2023 was recorded during the reporting period.

Environmental Complaint on 14 September 2023

12.3.2 The complaint about the water aspect was received by ET on 14 September 2023 at 17:17 via EPD-RNG email. The main content of the complaint mentioned the muddy water was observed at River Ganges (GR3) (Water Quality Monitoring Point from EPD). In summary of the investigation, the complaint is project related. It viewed that muddy water arising from wheel washing water from the site entrance at Portion E4 & Runoff from Existing Channel near Portion E3-1 & discharge water from the silt removal facilities at Portion E3-1 eventually flows into the box culvert under Wo Keng Shan Road, WM2 and ultimately to GR3. The related rectified actions should be conducted by the contractor as soon as possible.

12.3.3 The cumulative statistics on environmental complaints are presented in Table 12-1.

Table 12-1 Cumulative Statistics on Environmental Complaints

Reporting Period	Environmental Aspects					No. of Environmental Complaints
Reporting Period	Air Quality	Noise	Water Quality	Waste	Ecology	No. of Environmental Complaints
Sep 2023	0	0	1	0	0	0
Accumulate of project	1*	0	5(1*)	0	0	6(2*)

Remarks:

(1) * equal to non-project related after the investigation

(2) # equal to the investigation results will be presented in the report after the investigation.

12.3.4 Cumulative complaint / enquiry log, Summaries of complaints and enquiries & Environmental complaint reports are presented in Appendix P.

12.4 Summary of Environmental Summons and Successful Prosecution

12.4.1 No summons and successful prosecution were received during the reporting period.

13 Implementation Status on Environmental Mitigation Measures

13.1 General

13.1.1 The Contractor has generally implemented part of environmental mitigation measures and requirements as stated in the EIA Report, the EP and EM&A Manual and the contract documents. The implementation status during the reporting period is summarized in Appendix K.

13.2 Temporary Surface Water Drainage System (TSWDS)

13.2.1 The effectiveness of the TSWDS is keeping reviewing and improve by the contractor. The layout of the TSWDS is presented in Appendix Q.

13.3 Hydroseeding

13.3.1 The implementation of hydroseeding at the site boundary is keeping conducting by the contractor. The layout of implementation of hydroseeding is presented in Appendix Q.

13.4 Slope Surface Protection

13.4.1 The implementation of measure for control of construction runoff is keeping conducting by the contractor. The layout & photo record of implementation of measure for control of construction runoff is presented in Appendix Q.

14 Future Key Issues

15.1

15.2 Key Issues for the Coming Month

15.2.1 Works to be undertaken for the coming monitoring periods are summarized below. Detailed construction activities and locations are summarized in Appendix L.

- 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 & E3-1

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

- Shotcreting (Permanent and Temporary)

15.2.2 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.

15.3 Monitoring Schedule for the Next Month

15.3.1 The tentative schedule of environmental monitoring for the next reporting period is presented in Appendix C.

15.4 Construction Programme for the Next Month

15.4.1 The most updated construction programme for the Project is presented in Appendix A.

16 Conclusion

16.1.1 1-hr & 24-hr TSP impact monitoring was carried out in the reporting month. No Action / Limit Level exceedance for 1-hr & 24-hr TSP impact monitoring was recorded during the period.

16.1.2 Construction noise monitoring was carried out in the reporting month. No Action / Limit Level exceedance at NM1a & NM2a was recorded during the period.

16.1.3 Site clearance of future landfilling area is in progress. The installation of groundwater monitoring boreholes will be installed after the site formation work of the landfilling area. The target commencement period of groundwater monitoring will be in 2026. No groundwater monitoring is required before the completion of site formation work of the landfilling area.

16.1.4 Surface Water Quality Monitoring was carried out in the reporting month. No Action / Limit Level exceedance of surface water quality was recorded during the reporting period.

16.1.5 Landfill Gas Monitoring was carried out in the reporting month. No exceedance of Limit Levels of LFG was recorded during the reporting period.

16.1.6 In terms of cultural heritage, implementation of the mitigation measures such as permanent fencing to protect the boulder path and setting up warning notices during construction phase of the Project has been monitored through the regular site inspection/audit in the reporting period. All the mitigation measures are in order.

16.1.7 Post-transplantation monitoring was carried out in the reporting month. The numbers, measurements and health conditions of the transplanted species are recorded.

16.1.8 Four environmental site inspections were carried out in the reporting month. Recommendations on mitigation measures for Permit/ Licenses were given to the Contractor for remediating the deficiencies identified during the site inspections.

16.1.9 One complaint received on 14 September 2023 was recorded during the reporting period.

Environmental Complaint on 14 September 2023

16.1.10 The complaint about the water aspect was received by ET on 14 September 2023 at 17:17 via EPD-RNG email. The main content of the complaint mentioned the muddy water was observed at River Ganges (GR3) (Water Quality Monitoring Point from EPD). In summary of the investigation, the complaint is project related. It viewed that muddy water arising from wheel washing water from the site entrance at Portion E4 & Runoff from Existing Channel near Portion E3-1 & discharge water from the silt removal facilities at Portion E3-1 eventually flows into the box culvert under Wo Keng Shan Road, WM2 and ultimately to GR3. The related rectified actions should be conducted by the contractor as soon as possible.

16.1.11 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.

16.1.12 No notification of summons and prosecution was received during the reporting period.

16.1.13 The ET will keep track on the EM&A programme to ensure compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

Event	ET	IEC	Contractor
Exceedance of Action Level
Exceedance for one sample	• Identify source • Prepare Notification of Exceedance • Inform IEC and Contractor • Repeat measurement to confirm findings • Increase monitoring frequency to daily if exceedance is due to the Project and continue until the monitoring results reduce to below action level	• Verify the Notification of Exceedance • Check monitoring data submitted by ET and Contractor's working methods • Discuss with ET and Contractor on proposed remedial measures	• Rectify any unacceptable practice • Amend working methods if appropriate
Exceedance for two or more consecutive samples	• Identify source • Prepare Notification of Exceedance • Inform Contractor and IEC • Repeat measurements to confirm findings • Increase monitoring frequency to daily if exceedance is due to the Project and continue until the monitoring results reduce to below action level • Discuss with IEC for remedial action required • Ensure remedial measures are properly implemented • Continue monitoring at daily intervals if exceedance is due to the Project • If no exceedance for 3 consecutive days, cease additional monitoring	• Verify the Notification of Exceedance • Check monitoring data submitted by ET and Contractor's working methods • Discuss with ET and Contractor on proposed remedial measures • Review with analysed results submitted by ET • Review the proposed remedial measures by Contractor • Supervise the implementation of remedial measures	• Submit proposals for remedial actions to IEC within 3 working days of notification • Implement the agreed proposals • Amend proposal if appropriate

Event	ET	IEC	Contractor
Exceedance of Limit Level
Exceedance for one sample	• Identify source • Prepare Notification of Exceedance • Inform IEC and Contractor • Repeat measurement to confirm findings • Increase monitoring frequency to daily if exceedance is due to the Project and continue until the monitoring results reduce to below limit level • Assess effectiveness of Contractor's remedial actions and keep EPD and IEC informed of the results	• Verify the Notification of Exceedance • Check monitoring data submitted by ET and Contractor's working methods • Discuss with ET and Contractor potential remedial actions • Supervise the implementation of remedial measures	• Take immediate action to avoid further exceedance • Submit proposals for remedial actions to IEC within 3 working days of notification • Implement the agreed proposals • Amend proposal if appropriate
Exceedance for two or more consecutive samples	• Identify source • Prepare Notification of Exceedance • Inform IEC and EPD the causes and actions taken for the exceedances • Discuss with IEC for remedial action required • Ensure remedial measures are properly implemented • Assess effectiveness of Contractor’s remedial actions and keep IEC, EPD and informed of the results • Increase monitoring frequency to confirm findings • If exceedance stops, cease additional monitoring	• Verify the Notification of Exceedance • Check monitoring data submitted by ET and Contractor's working methods • Discuss amongst ET and Contractor on the potential remedial actions. • Review Contractor's remedial actions whenever necessary to assure their effectiveness • Supervise the implementation of remedial measures	• Take immediate action to avoid further exceedance • Submit proposals for remedial actions to IEC of notification • Implement the agreed proposals • Resubmit proposals if problem still not under control • Stop the relevant activity of works until the exceedance is abated

Figure 1	Location of the Project Site
Figure 2	Impact Air Quality, Noise & Surface Water Monitoring Locations
Figure 3	Landfill Gas Monitoring Locations

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
Appendix Q	Implementation Status on Environmental Mitigation Measures