Job No.: TCS00694/13

 

 

 

 

 

 

 

 

 

Agreement No. CE 45/2008 (CE)

Liantang/Heung Yuen Wai

Boundary Control Point and Associated Works

 

 

 

 

 

 

 

 

 

38th Quarterly Environmental Monitoring & Audit Summary Report –

(November 2022 to January 2023)

 

 

 

 

 

Prepared For

 

 

 

 

 

Civil Engineering and Development

Department (CEDD)

 

 

 

 

 

 

 

 

 

Quality Index

Date

Reference No.

Prepared By

Certified By

20 February 2023

TCS00694/13/600/R2802v1

Nicola Hon

(Environmental Consultant)

T.W. Tam

(Environmental Team Leader)

 

 

Version

Date

Description

1

20 February 2023

First Submission

 

 

 

 

 

 

 

 

 

 

 

 

This report has been prepared by Action-United Environmental Services & Consulting with all reasonable skill, care and diligence within the terms of the Agreement with the client, incorporating our General Terms and Conditions of Business and taking account of the resources devoted to it by agreement with the client. We disclaim any responsibility to the client and others in respect of any matters outside the scope of the above. This report is confidential to the client and we accept no responsibility of whatsoever nature to third parties to whom this report, or any part thereof, is made known. Any such party relies upon the report at their own risk.

 

 

 

 

 

 

 

Executive Summary

ES.01.   This is the 38th Quarterly EM&A Summary Report for the “Liantang/Heung Yuen Wai Boundary Control Point and Associated Works” under Environmental Permit No. EP-404/2011/D (hereinafter ‘‘the EP’’), covering the period from 1 November 2022 to 31 January 2023 (hereinafter “Reporting Period”).

 

ES.02.   In the Reporting Period, the construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works Contract 6.  Environmental monitoring activities under the EM&A programme in the Reporting Period are summarized in the following table.

 

Environmental Aspect

Monitoring Parameters / Inspection

Reporting Period

Monitoring Locations / Contracts

Total Occasions  

Air Quality

1-hour TSP

6 (#)

300

24-hour TSP

6 (#)

96

Construction Noise

Leq(30min) Daytime

5 (~)

68

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

(*)37 scheduled

WM2A(a) & WM2A-Cx

37 scheduled

WM2B & WM2B-C

(*) 37 Scheduled

WM3x &WM3-C

(*) 37 scheduled

Joint Site Inspection / Audit

ET and the Contractor joint site Environmental Inspection and Auditing

Contract 6

14

ET, the Contractor, IEC and RE joint site Environmental Inspection and Auditing

3

Remark:

                         (*) Water sampling was unable to carry out at WM3-C, WM2B and WM2B-C in the Reporting Period due to shallow water. Besides, WM1-C was also unable to carry out at some of the monitoring days in the Reporting Period due to shallow water.  (Water depth under 150mm). WM4, WM4-CA and WM4-CB were ceased after last monitoring carried out on 3 May 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021.

                          (#) Number of air monitoring location changed to 6 since the partial termination proposal approved by EPD on 9 Jul 2020 and 4 May 2021.

                          (~) Number of noise monitoring location changed to 5 since the partial termination proposal approved by EPD on 9 Jul 2020 and 4 May 2021.

 

Breaches of Action/Limit levels

ES.03.   In the Reporting Period, no exceedance was recorded for construction noise, air quality and water quality monitoring.  The summary of exceedance for the Reporting Period is shown below.

 

Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued

Investigation

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

24-hour TSP

0

0

0

--

--

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

Water Quality

DO

0

0

0

--

--

Turbidity

0

0

0

--

--

SS

0

0

0

 

Environmental Complaint

ES.04.   No environmental complaint was recorded in the Reporting Period.

 

Notification of Summons and Successful Prosecutions

ES.05.   No environmental summons or successful prosecutions were recorded in the Reporting Period.

 

Reporting Changes

ES.06.   No reporting change was recorded in the Reporting period.

 

Future key issues

ES.07.   Apart from the additional works at Kong Yiu Channel area, construction works under the Project were substantial completed, the potential environmental impacts associated with Project are considered negligible.  However, the Contractor was reminded that the environmental mitigation measures shall be properly implemented and maintained where applicable, as per the Mitigation Implementation Schedule, in the remaining construction period and operational phase. 

 

ES.08.   For construction work at Kong Yiu Channel area, diversion of existing stream courses and implementation of earth bunds were provided as water quality mitigation measures and The Contractor was reminded that all effluent discharge shall fulfill the requirement of Discharge Licence under the Water Pollution Control Ordinance.
Table of Contents

1       Introduction   1

1.1     Project Background   1

1.2          Report Structure  1

2       Project Organization and Construction progress  2

2.1          Construction Contract Packaging   2

2.2          Project Organization   4

2.3          Concurrent Projects  6

2.4          Construction Progress  6

2.5          Summary of Environmental Submissions  6

3       Project Organization and Construction progress  8

3.1          General  8

3.2          Monitoring Parameters  8

3.3          Monitoring Locations  8

3.4          Monitoring Frequency and Period   11

3.5          Monitoring Equipment  11

3.6          Monitoring Methodology   13

3.7          Equipment Calibration   15

3.8          Derivation of Action/Limit (A/L) Levels  16

3.9          Data Management and Data QA/QC Control  17

4       Air Quality Monitoring   18

4.1          General  18

4.2          Summary of Monitoring Results  18

5       Construction Noise Monitoring   19

5.1          General  19

5.2          Summary of Monitoring Results  19

6       Water Quality Monitoring   20

6.1          General  20

6.2          Summary of Monitoring Results  20

7       ECOLOGY MONITORING   22

7.1          Monitoring on Woodland Compensation   22

7.2          Monitoring on Wetland Compensation   22

8       Waste Management   23

8.1          General Waste Management  23

8.2          Records of Waste Quantities  23

9       Site Inspections  24

9.1          requirements  24

10     Non-compliance, Complaints, Notifications of Summons and Prosecutions  25

10.1        Status of Non-compliance Environmental Complaint, Summons and Prosecution   25

11     Implementation Status of Mitigation Measures  26

11.1        General Requirements  26

12     Conclusions and Recommendations  27

12.1        Conclusions  27

12.2        Recommendations  27

 

List of tables

Table 2-1      Status of Environmental Licenses and Permits of the Contracts

Table 3-1      Summary of EM&A Requirements

Table 3-2      Impact Monitoring Stations - Air Quality

Table 3-3      Impact Monitoring Stations - Construction Noise

Table 3-4      Impact Monitoring Stations - Water Quality

Table 3-5      Air Quality Monitoring Equipment

Table 3-6      Construction Noise Monitoring Equipment

Table 3-7      Water Quality Monitoring Equipment

Table 3-8      Action and Limit Levels for Air Quality Monitoring

Table 3-9      Action and Limit Levels for Construction Noise

Table 3-10    Action and Limit Levels for Water Quality

Table 4-1     Summary of Air Quality Monitoring Results

Table 4-2      Summaries of Breaches of Air Quality A/L Levels

Table 5-1     Summary of Construction Noise Monitoring Results

Table 5-2      Summaries of Breaches of Construction Noise A/L Levels

Table 6-1      Summary of the Water Quality Monitoring Results – Contracts 6

Table 6-2      Summary of the Water Quality Monitoring Results – Contract 6

Table 6-3      Summary of the Water Quality Monitoring Results – Contracts 6

Table 6-4      Summaries of Breaches of the Existing Water Quality A/L Levels

Table 8-1      Summary of Quantities of Inert C&D Materials

Table 8-2      Summary of Quantities of C&D Wastes

Table 9-1      Summary of Reminders/Observations of Site Inspection – Contract 6

Table 10-1    Statistical Summary of Environmental Complaints

Table 10-2    Statistical Summary of Environmental Summons

Table 10-3    Statistical Summary of Environmental Prosecution

 

 

List of Annexes

Appendix A  Layout plan of the Project

Appendix B  Environmental Management Organization Chart

Appendix C  Designated Monitoring Locations as Recommended in the Approved EM&A Manual

Appendix D  Monitoring Locations for Impact Monitoring

Appendix E  Event and Action Plan

Appendix F   Graphical Plots for Monitoring Result

Appendix G  eather information

Appendix H  Waste Flow Table

Appendix I   Implementation Schedule for Environmental Mitigation Measures

Appendix J   Implementation Status of mitigation measures for Operation Phase

Appendix K  Complaint Log

 

 

 

1        Introduction

1.1     Project Background

1.1.1.      Civil Engineering and Development Department is the Project Proponent and the Permit Holder of Agreement No. CE 45/2008 (CE) Liantang / Heung Yuen Wai Boundary Control Point and Associated Works, which is a Designated Project to be implemented under Environmental Permit number EP-404/2011/C granted on 12 March 2015 and the latest Environmental Permit number EP-404/2011/D granted on 20 January 2017.

 

1.1.2.      The Project consists of two main components: Construction of a Boundary Control Point (hereinafter referred as “BCP”); and Construction of a connecting road alignment.  Layout plan of the Project is shown in Appendix A.

 

1.1.3.      The proposed BCP is located at the boundary with Shenzhen near the existing Chuk Yuen Village, comprising a main passenger building with passenger and cargo processing facilities and the associated customs, transport and ancillary facilities.  The connecting road alignment consists of six main sections:

1)             Lin Ma Hang to Frontier Closed Area (FCA) Boundary – this section comprises at-grade and viaducts and includes the improvement works at Lin Ma Hang Road;

2)             Ping Yeung to Wo Keng Shan – this section stretches from the Frontier Closed Area Boundary to the tunnel portal at Cheung Shan and comprises at-grade and viaducts including an interchange at Ping Yeung;

3)             North Tunnel – this section comprises the tunnel segment at Cheung Shan and includes a ventilation building at the portals on either end of the tunnel;

4)             Sha Tau Kok Road – this section stretches from the tunnel portal at Wo Keng Shan to the tunnel portal south of Loi Tung and comprises at-grade and viaducts including an interchange at Sha Tau Kok and an administration building;

5)             South Tunnel – this section comprises a tunnel segment that stretches from Loi Tung to Fanling and includes a ventilation building at the portals on either end of the tunnel as well as a ventilation building in the middle of the tunnel near Lau Shui Heung;

6)             Fanling – this section comprises the at-grade, viaducts and interchange connection to the existing Fanling Highway.

 

1.1.4.      Action-United Environmental Services & Consulting has been commissioned as an Independent ET to implement the relevant EM&A programme in accordance with the approved EM&A Manual, as well as the associated duties.

 

1.1.5.      This is the 38th Quarterly EM&A Summary Report presenting the monitoring results and inspection findings for the Reporting Period from 1 November 2022 to 31 January 2023.

 

1.2  Report Structure

1.2.1        The Quarterly EM&A Summary Report is structured into the following sections:-

Section 1       Introduction

Section 2       Project Organization and Construction progress

Section 3       Summary of Impact monitoring Requirements

Section 4       Air Quality Monitoring

Section 5       Construction Noise Monitoring

Section 6       Water Quality Monitoring

Section 7       Ecology Monitoring

Section 8       Waste Management

Section 9       Site Inspection

Section 10     Non-compliance, Complaints, Notifications of Summons and Prosecutions

Section 11     Implementation Status of Mitigation Measures

Section 12     Conclusions and Recommendations

2        Project Organization and Construction progress

2.1  Construction Contract Packaging

2.1.1        To facilitate the project management and implementation, the Project would be divided by the following contracts:

·                Contract 2 (CV/2012/08)

·                Contract 3 (CV/2012/09)

·                Contract 4 (NE/2014/02)

·                Contract 5 (CV/2013/03)

·                Contract 6 (CV/2013/08)

·                Contract 7 (NE/2014/03)

·                ArchSD Contract No. SS C505

 

2.1.2        The details of each contracts is summarized below and the delineation of each contracts is shown in Appendix A.

 

Contract 2 (CV/2012/08)

2.1.3        Contract 2 has awarded in December 2013 and construction work was commenced on 19 May 2014.  Major Scope of Work of the Contract 2 is listed below:

·           construction of an approximately 5.2km long dual two-lane connecting road (with about 0.4km of at-grade road and 4.8km of tunnel) connecting the Fanling Interchange with the proposed Sha Tau Kok Interchange;

·           construction of a ventilation adit tunnel and the mid-ventilation building;

·           construction of the north and south portal buildings of the Lung Shan Tunnel and their associated slope works;

·           provision and installation of ventilation system, E&M works and building services works for Lung Shan tunnel and Cheung Shan tunnel and their portal buildings;

·           construction of Tunnel Administration Building adjacent to Wo Keng Shan Road and the associated E&M and building services works; and

·           construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 3 (CV/2012/09)

2.1.4        Contract 3 was awarded in July 2013 and construction work was commenced on 5 November 2013.  Major Scope of Work of the Contract 3 is listed below:

·           construction of four link roads connecting the existing Fanling Highway and the south portal of the Lung Shan Tunnel;

·           realignment of the existing Tai Wo Service Road West and Tai Wo Service Road East;

·           widening of the existing Fanling Highway (HyD’s entrustment works);

·           demolishing existing Kiu Tau vehicular bridge and Kiu Tau footbridge and reconstruction of the existing Kiu Tau Footbridge (HyD’s entrustment works); and

·           construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 4 (NE/2014/02)

2.1.5        Contract 4 was awarded in mid-April 2016 and construction work will be commenced on 2 May 2017.  The scope of work of the Contract 4 includes:

·             design, supply, delivery, installation, testing and commissioning of a traffic control and surveillance system for the connecting road linking up the Liantang / Heung Yuen Wai Boundary Control Point and the existing Fanling Highway.

 

Contract 5 (CV/2013/03)

2.1.6        Contract 5 has awarded in April 2013 and construction work was commenced in August 2013.  Major Scope of Work of the Contract 5 is listed below:

·           site formation of about 23 hectares of land for the development of the BCP;

·           construction of an approximately 1.6 km long perimeter road at the BCP including a 175m long depressed road;

·           associated diversion/modification works at existing local roads and junctions including Lin Ma Hang Road;

·           construction of pedestrian subway linking the BCP to Lin Ma Hang Road;

·           provision of resite area with supporting infrastructure for reprovisioning of the affected village houses; and

·           construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 6 (CV/2013/08)

2.1.7        Contract 6 was awarded in June 2015 and construction work was commenced on 23 October 2015.  Major Scope of Work of the Contract 6 would be included below:

Ÿ   construction of an approximately 4.6km long dual two-lane connecting road (with about 0.6km of at-grade road, 3.3km of viaduct and 0.7km of tunnel) connecting the BCP with the proposed Sha Tau Kok Road Interchange and the associated ventilation buildings;

Ÿ   associated diversion/modification works at access roads to the resite of Chuk Yuen Village;

Ÿ   provision of sewage collection, treatment and disposal facilities for the BCP and the resite of Chuk Yuen Village;

Ÿ   construction of a pedestrian subway linking the BCP to Lin Ma Hang Road;

Ÿ   provisioning of the affected facilities including Wo Keng Shan Road garden; and

Ÿ   construction of associated footpath, slopes, retaining structures, drainage, sewerage, waterworks, landscaping works and other ancillary works.

 

Contract 7 (NE/2014/03)

2.1.8        Contract 7 was awarded in December 2015 and the construction work was commenced 15 February 2016.  Major Scope of Work of the Contract 7 would be included below:

Ÿ   construction of the Hong Kong Special Administrative Region (HKSAR) portion of four vehicular bridge

Ÿ   construction of one pedestrian bridge crossing Shenzhen (SZ) River (cross boundary bridges)

 

ArchSD Contract No. SS C505

2.1.9        SS C505 has been awarded in July 2015 and construction work was commenced on 1 September 2015.  Major Scope of Work of the SS C505 would be included below:

Ÿ   passenger-related facilities including processing kiosks and examination facilities for private cars and coaches, passenger clearance building and halls, the interior fitting works for the pedestrian bridge crossing Shenzhen River, etc.;

Ÿ   cargo processing facilities including kiosks for clearance of goods vehicles, customs inspection platforms, X-ray building, etc.;

Ÿ   accommodation for the facilities inside of the Government departments providing services in connection with the BCP;

Ÿ   transport-related facilities inside the BCP including road networks, public transport interchange, transport drop-off and pick-up areas, vehicle holding areas and associated road furniture etc;

Ÿ   a public carpark; and

Ÿ   other ancillary facilities such as sewerage and drainage, building services provisions and electronic systems, associated environmental mitigation measure and landscape works.

2.2  Project Organization

2.2.1        The project organization is shown in Appendix B. The responsibilities of respective parties are:

 

Civil Engineering and Development Department (CEDD)

2.2.2        CEDD is the Project Proponent and the Permit Holder of the EP of the development of the Project and will assume overall responsibility for the project. An Independent Environmental Checker (IEC) shall be employed by CEDD to audit the results of the EM&A works carried out by the ET.

 

Architectural Services Department (ArchSD)

2.2.3        ArchSD acts as the works agent for Development Bureau (DEVB), for Contract SS C505 Liantang/ Heung Yuen Wai Boundary Control Point (BCP) – BCP Buildings and Associated Facilities.

 

Environmental Protection Department (EPD)

2.2.4        EPD is the statutory enforcement body for environmental protection matters in Hong Kong.

 

Ronald Lu & Partners (Hong Kong) Ltd (The Architect)

2.2.5        Ronald Lu & Partners (Hong Kong) Ltd is appointed by ArchSD as an Architect for Contract SS C505 Liantang/ Heung Yuen Wai Boundary Control Point (BCP) – BCP Buildings and Associated Facilities.  It responsible for overseeing the construction works of Contract SS C505 and for ensuring that the works are undertaken by the Contractor in accordance with the specification and contract requirements. The duties and responsibilities of the Architect with respect to EM&A are:

Ÿ   Monitor the Contractors’ compliance with contract specifications, including the implementation and operation of the environmental mitigation measures and their effectiveness

Ÿ   Monitor Contractors’ and ET’s compliance with the requirements in the Environmental Permit (EP) and EM&A Manual

Ÿ   Facilitate ET’s implementation of the EM&A programme

Ÿ   Participate in joint site inspection by the ET and IEC

Ÿ   Oversee the implementation of the agreed Event / Action Plan in the event of any exceedance

Ÿ   Adhere to the procedures for carrying out complaint investigation

Ÿ   Liaison with DSD, Engineer/Engineer’s Representative, ET, IEC and the Contractor of the “Construction of the DSD’s Regulation of Shenzhen River Stage 4 (RSR 4)” Project discussing regarding the cumulative impact issues.

 

Engineer or Engineers Representative (ER)

2.2.6        The ER is responsible for overseeing the construction works and for ensuring that the works are undertaken by the Contractor in accordance with the specification and contract requirements. The duties and responsibilities of the ER with respect to EM&A are:

·           Monitor the Contractors’ compliance with contract specifications, including the implementation and operation of the environmental mitigation measures and their effectiveness

·           Monitor Contractors’s, ET’s and IEC’s compliance with the requirements in the Environmental Permit (EP) and EM&A Manual

·           Facilitate ET’s implementation of the EM&A programme

·           Participate in joint site inspection by the ET and IEC

·           Oversee the implementation of the agreed Event / Action Plan in the event of any exceedance

·           Adhere to the procedures for carrying out complaint investigation

·           Liaison with DSD, Engineer/Engineer’s Representative, ET, IEC and the Contractor of the “Construction of the DSD’s Regulation of Shenzhen River Stage 4 (RSR 4)” Project discussing regarding the cumulative impact issues.

 

The Contractor(s)

2.2.7        There will be one contractor for each individual works contract.  The Contractor(s) should report to the ER.  The duties and responsibilities of the Contractor are:

·           Comply with the relevant contract conditions and specifications on environmental protection

·           Employ an Environmental Team (ET) to undertake monitoring, laboratory analysis and reporting of EM &A Facilitate ET’s monitoring and site inspection activities

·           Participate in the site inspections by the ET and IEC, and undertake any corrective actions

·           Provide information / advice to the ET regarding works programme and activities which may contribute to the generation of adverse environmental impacts

·           Submit proposals on mitigation measures in case of exceedances of Action and Limit levels in accordance with the Event / Action Plans

·           Implement measures to reduce impact where Action and Limit levels are exceeded

·           Adhere to the procedures for carrying out complaint investigation

 

Environmental Team (ET)

2.2.8        One ET will be employed for this Project.  The ET shall not be in any way an associated body of the Contractor(s), and shall be employed by the Project Proponent/Contractor to conduct the EM&A programme.  The ET should be managed by the ET Leader. The ET Leader shall be a person who has at least 7 years’ experience in EM&A and has relevant professional qualifications. Suitably qualified staff should be included in the ET, and resources for the implementation of the EM&A programme should be allocated in time under the Contract(s), to enable fulfillment of the Project’s EM&A requirements as specified in the EM&A Manual during construction of the Project.  The ET shall report to the Project Proponent and the duties shall include:

·           Monitor and audit various environmental parameters as required in this EM&A Manual

·           Analyse the environmental monitoring and audit data, review the success of EM&A programme and the adequacy of mitigation measures implemented, confirm the validity of the EIA predictions and identify any adverse environmental impacts arising

·           Carry out regular site inspection to investigate and audit the Contractors’ site practice, equipment/plant and work methodologies with respect to pollution control and environmental mitigation, and effect proactive action to pre-empt problems

·           Monitor compliance with conditions in the EP, environmental protection, pollution prevention and control regulations and contract specifications

·           Audit environmental conditions on site

·           Report on the environmental monitoring and audit results to EPD, the ER, the lEC and Contractor(s) or their delegated representatives

·           Recommend suitable mitigation measures to the Contractor in the case of exceedance of Action and Limit levels in accordance with the Event and Action Plans

·           Liaise with the IEC on all environmental performance matters and timely submit all relevant EM&A proforma for approval by IEC

·           Advise the Contractor(s) on environmental improvement, awareness, enhancement measures etc., on site

·           Adhere to the procedures for carrying out complaint investigation

·           Liaison with the client departments, Engineer/Engineer’s Representative, ET, lEC and the Contractor(s) of the concurrent projects as listed under Section 2.3 below regarding the cumulative impact issues.

 

Independent Environmental Checker (IEC)

2.2.9        One IEC will be employed for this Project.  The Independent Environmental Checker (IEC) should not be in any way an associated body of the Contractor(s) or the ET for the Project.  The IEC should be employed by the Permit Holder (i.e., CEDD) prior to the commencement of the construction of the Project.  The IEC should have at least 10 years’ experience in EM&A and have relevant professional qualifications.  The duty of IEC should be:

·           Provide proactive advice to the ER and the Project Proponent on EM&A matters related to the project, independent from the management of construction works, but empowered to audit the environmental performance of construction

·           Review and audit all aspects of the EM&A programme implemented by the ET

·           Review and verify the monitoring data and all submissions in connection with the EP and EM&A Manual submitted by the ET

·           Arrange and conduct regular, at least monthly site inspections of the works during construction phase, and ad hoc inspections if significant environmental problems are identified

·           Check compliance with the agreed Event / Action Plan in the event of any exceedance

·           Check compliance with the procedures for carrying out complaint investigation

·           Check the effectiveness of corrective measures

·           Feedback audit results to ET by signing off relevant EM&A proforma

·           Check that the mitigation measures are effectively implemented

·           Report the works conducted, the findings, recommendation and improvement of the site inspections, after reviewing ET’s and Contractor’s works, and advices to the ER and Project Proponent on a monthly basis

·           Liaison with the client departments, Engineer/Engineer’s Representative, ET, lEC and the Contractor(s) of the concurrent projects as listed under Section 2.3 below regarding the cumulative impact issues.

 

2.3  Concurrent Projects

2.3.1        The concurrent construction works that may be carried out include, but not limited to, the following:

                         (a)          Regulation of Shenzhen River Stage IV;

                        (b)          Widening of Fanling Highway – Tai Hang to Wo Hop Shek Interchange – Contract No. HY/2012/06;

                         (c)          Construction of BCP facilities in Shenzhen.

 

2.4  Construction Progress

2.4.1        Following the partial commencement of the Project, the major construction works under the Project were substantially completed.  Proposal for partial termination of the construction phase EM&A programme for Contracts 2, 4, 7 and SS C505 was approved by EPD on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.17).  Moreover, termination proposal for Contract 3 was approved by EPD on 4 May 2021 (EPD’s ref.: () in Ax (3) to EP 2/N7/A52 Pt.18).

 

Contract 6 (CV/2013/08)

2.4.2        Contract 6 has awarded in June 2015 and construction work was commenced on 23 October 2015. In this Reporting Period, construction activities conducted are listed below:

Ÿ   Construction of Flood Walls and Vehicular Maintenance Ramp near Kong Yiu Channel

 

2.5  Summary of Environmental Submissions

2.5.1        In according to the EP, the required documents have submitted to EPD which listed in below:

Ÿ   Project Layout Plans of Contracts 2, 3, 4, 5, 6, 7 and SS C505

Ÿ   Landscape Plan

Ÿ   Topsoil Management Plan

Ÿ   Environmental Monitoring and Audit Programme

Ÿ   Baseline Monitoring Report (TCS00690/13/600/R0030v3) for the Project

Ÿ   Waste Management Plan of the Contracts 2, 3, 4, 5, 6, 7 and SS C505

Ÿ   Contamination Assessment Plan (CAP) and Contamination Assessment Report (CAR) for Po Kat Tsai, Loi Tung and the workshops in Fanling

Ÿ   Vegetation Survey Report

Ÿ   Woodland Compensation Plan

Ÿ   Habitat Creation Management Plan

 

2.5.2        Summary of the relevant permits, licenses, and/or notifications on environmental protection for the Project of each contracts are presented in Table 2-1.

 

Table 2-1             Status of Environmental Licenses and Permits of the Contracts

Item

Description

License/Permit Status

Ref. no.

Effective Date

Expiry Date

Contract 6

1

Air pollution Control (Construction Dust) Regulation

Ref. No: 390614

29 Jun 2015

Till the end of Contract

2

Chemical Waste Producer Registration

Waste Producers Number No.: 5213-652-C3969-01

31 Aug 2015

Till the end of Contract

3

Water Pollution Control Ordinance - Discharge License

WT00041417-2022

20 Jun 2022

Valid until 30 Jun 2027

4

Waste Disposal Regulation - Billing Account for Disposal of Construction Waste

Account No. 7022707

9 Jul 2015

Till the end of Contract

5

Construction Noise Permit

GW-RN0825-22

3 Oct 2022

2 Jan 2023

GW-RN1135-22

3 Jan 2023

2 May 2023

 

3        Project Organization and Construction progress

3.1  General

3.1.1        The Environmental Monitoring and Audit requirements are set out in the Approved EM&A manual. Environmental issues such as air quality, construction noise and water quality were identified as the key issues during the construction phase of the Project.

 

3.1.2        A summary of construction phase EM&A requirements are presented in the sub-sections below.

 

3.2  Monitoring Parameters

3.2.1        The EM&A program of construction phase monitoring shall cover the following environmental issues:

•            Air quality;

•            Construction noise; and

•            Water quality

3.2.2        A summary of the monitoring parameters is presented in Table 3-1.

Table 3-1             Summary of EM&A Requirements

Environmental Issue

Parameters

Air Quality

Ÿ  1-hour TSP by Real-Time Portable Dust Meter; and

Ÿ  24-hour TSP by High Volume Air Sampler.

Noise

Ÿ  Leq(30min) in normal working days (Monday to Saturday) 07:00-19:00 except public holiday; and

Ÿ  3 sets of consecutive Leq(5min) on restricted hours i.e. 19:00 to 07:00 next day, and whole day of public holiday or Sunday

Ÿ  Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

Water Quality

In-situ Measurements

Ÿ  Dissolved Oxygen Concentration (mg/L);

Ÿ  Dissolved Oxygen Saturation (% );

Ÿ  Turbidity (NTU);

Ÿ  pH unit;

Ÿ  Water depth (m); and

Ÿ  Temperature (℃).

Laboratory Analysis

Ÿ  Suspended Solids (mg/L)

 

3.3  Monitoring Locations

3.3.1        The designated monitoring locations as recommended in the EM&A Manual are shown in Appendix C. As the access to some of the designated monitoring locations was questionable due to safety reason or denied by the landlords, alternative locations therefore have had proposed. The latest alternative monitoring locations has been updated in the revised EM&A Programme (Rev.7) which approved by EPD on 7 April 2017. Besides, in view of Location AM1b was demolished and returned to the landlord on 27 April 2018, alterative location AM1c was proposed by ET and approved by EPD on 26 November 2018.  Table 3-2, Table 3-3 and Table 3-4 are respectively listed the air quality, construction noise and water quality monitoring locations for the Project and a map showing these monitoring stations is presented in Appendix D.

 

3.3.2        Following the proposal for partial termination of the construction phase EM&A programme for Contract 2, 4, 7 and SSC505 and Contract 3 was approved by EPD on 9 July 2020 and 4 May 2021 respectively.  The corresponding air quality monitoring stations including AM1c, and AM8 were ceased after last monitoring carried out on 7 July 2020 and 10 July 2020 respectively and AM9b was ceased after last monitoring carried out on 4 May 2021.  Besides, the corresponding noise monitoring stations including NM1 and NM7 were ceased after last monitoring carried out on 7 July 2020 and 10 July 2020 respectively and NM8, NM9 and NM10 were ceased after last monitoring carried out on 29 April 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021. Moreover, WM4, WM4-CA and WM4-CB were ceased after last monitoring carried out on 3 May 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021.

Table 3-2             Impact Monitoring Stations - Air Quality

Station ID

Description

Works Area

Related to the Work Contract

AM1c (*)

($)

Open area of Tsung Yuen Ha Village No. 63

BCP

SS C505

Contract 7

AM2

Village House near Lin Ma Hang Road

LMH to Frontier Closed Area

Contract 6

AM3

Ta Kwu Ling Fire Service Station of Ta Kwu Ling Village.

LMH to Frontier Closed Area

Contract 6

AM4b^

House no. 10B1 Nga Yiu Ha Village

LMH to Frontier Closed Area

Contract 6

AM5a^

Ping Yeung Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM6

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

AM7b@

Loi Tung Village House

Sha Tau Kok Road

Contract 2

Contract 6

AM8 ($)

Po Kat Tsai Village No. 4

Po Kat Tsai

Contract 2

AM9b#

Nam Wa Po Village House No. 80

Fanling

Contract 3

# Proposal for the change of air quality monitoring location from AM9a to AM9b was submitted to EPD on 4 Nov 2013 after verified by the IEC and it was approved by EPD (EPD’s ref.: (15) in EP 2/N7/A/52 Pt.10 dated 8 Nov 2013). Besides, AM9b was ceased after last monitoring carried out on 4 May 2021 according to Partial Termination Proposal approved by EPD on 4 May 2021.

@ Proposal for the change of air quality monitoring location from AM7a to AM7b was submitted to EPD on 4 June 2014 after verified by the IEC. It was approved by EPD (EPD’s ref.: (7) in EP 2/N7/A/52 Pt.12 dated 9 Jun 2014).

^ Proposal for change of air quality monitoring locations was enclosed in the updated EM&A Programme which approval by EPD on 29 Mar 2016. Besides, Location AM1b was temporary suspended (24-hour TSP monitoring) since 27 April 2018 as the rented land was demolished and returned to the landlord.

* Revised proposal for alterative location AM1c was submitted to EPD on 31 October 2018 after verified by the IEC and it was approved by EPD (EPD’s ref.: ( ) in Ax (1) to EP 2/N7/A/52 Pt.26 dated 26 November 2018).

$ AM1c and AM8 were ceased after last monitoring carried out on 7 July 2020 and 10 July 2020 respectively according to Partial Termination Proposal approved by EPD on 9 July 2020.

 

Table 3-3         Impact Monitoring Stations - Construction Noise

Station ID

Description

Works Area

Related to the Work Contract

NM1 ($)

Tsung Yuen Ha Village House No. 63

BCP

SS C505

Contract 7

NM2a#

Village House near Lin Ma Hang Road

Lin Ma Hang to Frontier Closed Area

Contract 6

NM3

Ping Yeung Village House (facade facing northeast)

Ping Yeung to Wo Keng Shan

Contract 6

NM4

Wo Keng Shan Village House

Ping Yeung to Wo Keng Shan

Contract 6

NM5

Village House, Loi Tung

Sha Tau Kok Road

Contract 2,

Contract 6

NM6

Tai Tong Wu Village House 2

Sha Tau Kok Road

Contract 2,

Contract 6

NM7 ($)

Po Kat Tsai Village

Po Kat Tsai

Contract 2

NM8 ($)

Village House, Tong Hang

Fanling

Contract 2

Contract 3

NM9 ($)

Village House, Kiu Tau Village

Fanling

Contract 3

NM10 ($)

Nam Wa Po Village House No. 80

Fanling

Contract 3

# Proposal for the change of construction noise monitoring location from NM2 to NM2a was verified by the IEC on 6 May 2016 and was effective on 9 May 2016.

$ NM1 and NM7 were ceased after last monitoring carried out on 7 July 2020 and 10 July 2020 respectively according to Partial Termination Proposal approved by EPD on 9 July 2020. Besides, NM8, NM9 and NM10 were ceased after last monitoring carried out on 29 April 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021.

 

Table 3-4         Impact Monitoring Stations - Water Quality

Station ID

Description

Coordinates of Designated / Alternative Location

Nature of the location

Related to the Work Contract

WM1

Downstream of Kong Yiu Channel

833 679

845 421

Alternative location located at upstream 51m of the designated location

Contract 6

WM1- Control

Upstream of Kong Yiu Channel

834 185

845 917

NA

Contract 6

WM2A

Downstream of River Ganges

834 204

844 471

Alternative location located at upstream 81m of the designated location

Contract 6

WM2A(a)*

Downstream of River Ganges

834 191

844 474

Alternative location located at upstream 70m of the designated location

Contract 6

WM2A- Controlx#

Upstream of River Ganges

835 377

844 188

Alternative location located at upstream 160m of the designated location

Contract 6

WM2B

Downstream of River Ganges

835 433

843 397

NA

Contract 6

WM2B- Control

Upstream of River Ganges

835 835

843 351

Alternative location located at downstream 31m of the designated location

Contract 6

WM3x#

Downstream of River Indus

836 206

842 270

Alternative location located at downstream 180m of the designated location

Contract 6

WM3- Control

Upstream of River Indus

836 763

842 400

Alternative location located at downstream 26m of the designated location

Contract 6

WM4 ($)

Downstream of Ma Wat Channel

833 850

838 338

Alternative location located at upstream 11m of the designated location

Contract 3

WM4– Control A ($)

Kau Lung Hang Stream

834 028

837 695

Alternative location located at downstream 28m of the designated location

Contract 3

WM4– Control B ($)

Upstream of Ma Wat Channel

833760

837395

Alternative location located at upstream 15m of the designated location

Contract 3

Note: EPD has approved the revised EM&A Programme (Rev.7) which proposed that (1) if the measured water depth of the monitoring station is lower than 150 mm, alternative location based on the criteria were selected to perform water monitoring; and (2) If no suitable alternative location could be found within 15m far from the original location, the sampling at that location will be cancelled since sampling at too far from the designated location could not make a representative sample in accordance with the updated EM&A Programme (Rev. 07) (Section 4.1.4) (EPD ref.: ( ) in EP2/N7/A/52 Ax(1) Pt.20 dated 7 April 2017)

(*)        Proposal for the change of water monitoring location from WM2A to WM2A(a) was verified by the IEC and it was approved by EPD. (EPD’s ref. (10) in EP 2/N7/A/52 Pt.19)

(#)  Proposal for the change of water quality monitoring location (WM3x and WM2A-Cx was included in the EM&A Programme Rev .05 which approved by EPD on 29 March 2016 (EPD ref.: (3) in EP2/N7/A/52 Ax(1) Pt.19)

($) WM4, WM4-CA and WM4-CB were ceased after last monitoring carried out on 3 May 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021.

 

3.4  Monitoring Frequency and Period

3.4.1        The requirements of impact monitoring are stipulated in Sections 2.1.6, 3.1.5 and 4.1.6 of the approved EM&A Manual and presented as follows.

 

Air Quality Monitoring

3.4.2        Frequency of impact air quality monitoring is as follows:

Ÿ   1-hour TSP

3 times every six days during course of works

Ÿ   24-hour TSP

Once every 6 days during course of works

 

Noise Monitoring

3.4.3        One set of Leq(30min) as 6 consecutive Leq(5min) between 0700-1900 hours on normal weekdays and once every week during course of works.  If construction work necessary to carry out at other time periods, i.e. restricted time period (19:00 to 07:00 the next morning and whole day on public holidays) (hereinafter referred as “the restricted hours”), 3 consecutive Leq(5min) measurement will depended CNP requirements to undertake.  Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference.

 

Water Quality Monitoring

3.4.4        The water quality monitoring frequency shall be 3 days per week during course of works.  The interval between two sets of monitoring shall not be less than 36 hours.

 

3.5      Monitoring Equipment

Air Quality Monitoring

3.5.1        The 24-hour and 1-hour TSP levels shall be measured by following the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.  If the ET proposes to use a direct reading dust meter to measure 1-hour TSP levels, it shall submit sufficient information to the IEC to approve.

 

3.5.2        The filter paper of 24-hour TSP measurement shall be determined by HOKLAS accredited laboratory.

 

3.5.3        All equipment to be used for air quality monitoring is listed in Table 3-5.

Table 3-5             Air Quality Monitoring Equipment

Equipment

Model

24-Hour TSP

High Volume Air Sampler

TISCH High Volume Air Sampler, HVS Model TE-5170

Calibration Kit

TISCH Model TE-5025A

1-Hour TSP

Portable Dust Meter

Sibata LD-3B Laser Dust monitor Particle Mass Profiler & Counter/ SidePak™ Personal Aerosol Monitor AM510

 

Wind Data Monitoring Equipment

3.5.4        According to the approved EM&A Manual, wind data monitoring equipment shall also be provided and set up for logging wind speed and wind direction near the dust monitoring locations.  The equipment installation location shall be proposed by the ET and agreed with the IEC.  For installation and operation of wind data monitoring equipment, the following points shall be observed:

1)        The wind sensors should be installed 10 m above ground so that they are clear of obstructions or turbulence caused by buildings.

2)        The wind data should be captured by a data logger. The data shall be downloaded for analysis at least once a month.

3)        The wind data monitoring equipment should be re-calibrated at least once every six months.

4)        Wind direction should be divided into 16 sectors of 22.5 degrees each.

 

3.5.5        ET has liaised with the landlords of the successful granted HVS installation premises.  However, the owners rejected to provide premises for wind data monitoring equipment installation.

 

3.5.6        Under this situation, the ET proposed alternative methods to obtain representative wind data.  Meteorological information as extracted from “the Hong Kong Observatory Ta Kwu Ling Station” is alternative method to obtain representative wind data.  For Ta Kwu Ling Station, it is located nearby the Project site.  Moreover, this station is located at 15m above mean sea level while its anemometer is located at 13m above the existing ground which in compliance with the general setting up requirement.  Furthermore, this station also can be to provide the humidity, rainfall, and air pressure and temperature etc. meteorological information.  In Hong Kong of a lot development projects, weather information extracted from Hong Kong Observatory is common alternative method if weather station installation not allowed.

 

Noise Monitoring

3.5.7        Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for carrying out the noise monitoring.  The sound level meter shall be checked using an acoustic calibrator. The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in m s-1.

 

3.5.8        Noise monitoring equipment to be used for monitoring is listed in Table 3-6.

Table 3-6             Construction Noise Monitoring Equipment

Equipment

Model

Integrating Sound Level Meter

Rion NL-52

Calibrator

Rion NC-75

Portable Wind Speed Indicator

Testo Anemometer

 

3.5.9        Sound level meters listed above comply with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications, as recommended in TM issued under the NCO.  The acoustic calibrator and sound level meter to be used in the impact monitoring will be calibrated yearly.

 

Water Quality Monitoring

3.5.10    DO and water temperature should be measured in-situ by a DO/temperature meter. The instrument should be portable and weatherproof using a DC power source. It should have a membrane electrode with automatic temperature compensation complete with a cable. The equipment should be capable of measuring:

•            a DO level in the range of 0-20 mg/l and 0-200% saturation; and

•            a temperature of between 0 and 45 degree Celsius.

 

3.5.11    A portable pH meter capable of measuring a range between 0.0 and 14.0 should be provided to measure pH under the specified conditions accordingly to the APHA Standard Methods.

 

3.5.12    The instrument should be portable and weatherproof using a DC power source. It should have a photoelectric sensor capable of measuring turbidity between 0-1000 NTU.

 

3.5.13    A portable, battery-operated echo sounder or tape measure will be used for the determination of water depth at each designated monitoring station as appropriate.

 

3.5.14    A water sampler e.g. Kahlsico Water Sampler, which is a transparent PVC cylinder with capacity not less than 2 litres, will be used for water sampling if water depth over than 0.5m.   For sampling from very shallow water depths e.g. <0.5 m, water sample collection will be directly from water surface below 100mm use sampling plastic bottle to avoid inclusion of bottom sediment or humus.  Moreover, Teflon/stainless steel bailer or self-made sampling buckets maybe used for water sampling.  The equipment used for sampling will be depended the sampling location and depth situations.

 

3.5.15    Water samples for laboratory measurement of SS will be collected in high density polythene bottles, packed in ice (cooled to 4 ºC without being frozen), and delivered to the laboratory in the same day as the samples were collected.

 

3.5.16    Analysis of suspended solids should be carried out in a HOKLAS or other accredited laboratory. Water samples of about 1L should be collected at the monitoring stations for carrying out the laboratory suspended solids determination.  The SS determination work should start within 24 hours after collection of the water samples. The SS analyses should follow the APHA Standard Methods 2540D with Limit of Reporting of 2 mg/L.

 

3.5.17    Water quality monitoring equipment used in the impact monitoring is listed in Table 3-7.  Suspended solids (SS) analysis is carried out by a local HOKLAS-accredited laboratory, namely ALS Technichem (HK) Pty Ltd.

Table 3-7             Water Quality Monitoring Equipment

Equipment

Model

Water Depth Detector

Eagle Sonar or tape measures

Water Sampler

A 2-litre transparent PVC cylinder with latex cups at both ends or teflon/stainless steel bailer or self-made sampling bucket

Thermometer & DO meter

YSI Professional DSS

pH meter

YSI Professional DSS

Turbidimeter

YSI Professional DSS

Sample Container

High density polythene bottles (provided by laboratory)

Storage Container

‘Willow’ 33-liter plastic cool box with Ice pad

 

3.6     Monitoring Methodology

1-hour TSP Monitoring

3.6.1        The 1-hour TSP monitor was a brand named “Sibata LD-3B Laser Dust monitor Particle Mass Profiler & Counter” which is a portable, battery-operated laser photometer.  The 1-hour TSP meter provides a real time 1-hour TSP measurement based on 90o light scattering.  The 1-hour TSP monitor consists of the following:

(a.)         A pump to draw sample aerosol through the optic chamber where TSP is measured;

(b.)        A sheath air system to isolate the aerosol in the chamber to keep the optics clean for maximum reliability; and

(c.)         A built-in data logger compatible with Windows based program to facilitate data collection, analysis and reporting.

 

3.6.2        The 1-hour TSP meter is used within the valid period as follow manufacturer’s Operation and Service Manual.

 

24-hour TSP Monitoring

3.6.3        The equipment used for 24-hour TSP measurement is Tisch Environmental, Inc. Model TE-5170 TSP high volume air sampling system, which complied with EPA Code of Federal Regulation, Appendix B to Part 50. The High Volume Air Sampler (HVS) consists of the following:

(a.)         An anodized aluminum shelter;

(b.)        A 8”x10” stainless steel filter holder;

(c.)         A blower motor assembly;         

(d.)        A continuous flow/pressure recorder;

(e.)         A motor speed-voltage control/elapsed time indicator;

(f.)         A 7-day mechanical timer, and

(g.)         A power supply of 220v/50 Hz

 

3.6.4        The HVS is operated and calibrated on a regular basis in accordance with the manufacturer’s instruction using Tisch Calibration Kit Model TE-5025A.  Calibration would carry out in two month interval.

 

3.6.5        24-hour TSP is collected by the ET on filters of HVS and quantified by a local HOKLAS accredited laboratory, ALS Technichem (HK) Pty Ltd (ALS), upon receipt of the samples.  The ET keep all the sampled 24-hour TSP filters in normal air conditioned room conditions, i.e. 70% RH (Relative Humidity) and 25oC, for six months prior to disposal.

 

Noise Monitoring

3.6.6        Noise measurements were taken in terms of the A-weighted equivalent sound pressure level (Leq) measured in decibels dB(A). Supplementary statistical results (L10 and L90) were also obtained for reference.

 

3.6.7        During the monitoring, all noise measurements were performed with the meter set to FAST response and on the A-weighted equivalent continuous sound pressure level (Leq).  Leq(30min) in six consecutive Leq(5min) measurements were used as the monitoring parameter for the time period between 0700-1900 hours on weekdays; and also Leq(15min) in three consecutive Leq(5min) measurements is used as monitoring parameter for other time periods (e.g. during restricted hours), if necessary.

 

3.6.8        Prior of noise measurement, the accuracy of the sound level meter is checked using an acoustic calibrator generating a known sound pressure level at a known frequency.  The checking was performed before and after the noise measurement.

 

Water Quality

3.6.9        Water quality monitoring is conducted at the designated locations. The sampling produce with the in-situ monitoring are presented as below:

 

Sampling Procedure

3.6.10    A Digital Global Positioning System (GPS) is used to identify the designated monitoring stations prior to water sampling.  A portable, battery-operated echo sounder is used for the determination of water depth at each station.  At each station, water sample would be collected from 0.1m below water surface or the water surface to prevent the river bed sediment for stirring.

 

3.6.11    If the water level of a monitoring station is too shallow when sampling, sediment would be disturbed which affecting the accuracy of water quality monitoring.  In order to avoid disturbing sediment, depth limits should be set up for the water sampling for the ease of reference.  When the measured water depth of the monitoring station (both control and impact stations) is lower than 150mm, water monitoring would not be to perform at that monitoring location.  Instead, the monitoring location will be moved to a temporary alternative location monitoring location based on the criteria below:-

 

(a) the alternative location should be either upstream or downstream of the original location and at the same the river/drain channel

(b)the alternative location should be within 15m far from the original location

(c) if no suitable alternative location could be found within 15m far from the original location, the sampling at that location will be cancelled since sampling at too far from the designated location could not make a representative sample.

 

3.6.12    The sample container will be rinsed with a portion of the water sample.  The water sample then will be transferred to the high-density polythene bottles as provided by the laboratory, labeled with a unique sample number and sealed with a screw cap.

 

3.6.13    Before sampling, general information such as the date and time of sampling, weather condition as well as the personnel responsible for the monitoring would be recorded on the field data sheet.

 

3.6.14    A ‘Willow’ 33-liter plastic cool box packed with ice will be used to preserve the water samples prior to arrival at the laboratory for chemical determination.  The water temperature of the cool box is maintained at a temperature as close to 40C as possible without being frozen.  Samples collected are delivered to the laboratory upon collection.

 

In-situ Measurement

3.6.15    Instrument including YSI PRO20 Handheld Dissolved Oxygen Instrument, YSI Professional Plus and YSI 550A Multifunctional Meter are used for water in-situ measures, which automates the measurements and data logging of temperature, dissolved oxygen and dissolved oxygen saturation.  Before each round of monitoring, the dissolved oxygen probe would be calibrated by the wet bulb method.

 

3.6.16    A portable AZ8685 pH pen-style meter or YSI Professional Plus is used for in-situ pH measurement.  The pH meter is capable of measuring pH in the range of 0 – 14 and readable to 0.1.

 

3.6.17    A portable Hach 2100Q Turbidimeter is used for in-situ turbidity measurement. The turbidity meter is capable of measuring turbidity in the range of 0 – 1000 NTU.  StablCal® Standards of known NTU are used for calibration of the instrument before and after measurement.

 

3.6.18    All in-situ measurement equipment are calibrated by HOKLAS accredited laboratory of three month interval.

 

Laboratory Analysis

3.6.19    All water samples are analyzed with Suspended Solids (SS) as specified in the EM&A Manual by a local HOKLAS-accredited testing laboratory (ALS Technichem (HK) Pty Ltd HOKLAS registration no. 66).  SS analysis is determined by the laboratory upon receipt of the water samples using APHA Standard Methods 2540D (namely ALS Method EA-025 as accredited HOKLAS Scheme) started within 48 hours of water sample receipt.

 

3.7      Equipment Calibration

3.7.1        Calibration of the HVS is performed upon installation and thereafter at bimonthly intervals in accordance with the manufacturer’s instruction using the certified standard calibrator (TISCH Model TE-5025A).  Moreover, the Calibration Kit would be calibrated annually. The calibration data are properly documented and the records are maintained by ET for future reference.

 

3.7.2        The 1-hour TSP meter was calibrated by the supplier prior to purchase.  Zero response of the equipment would be checked before and after each monitoring event.  Annually calibration with the High Volume Sampler (HVS) in same condition would be undertaken by the Laboratory.

 

3.7.3        The sound level meter and calibrator are calibrated and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme at yearly basis.

 

3.7.4        All water quality monitoring equipment is calibrated by HOKLAS accredited laboratory of three month intervals.

 

3.7.5        The calibration certificates of all monitoring equipment used for the impact monitoring program in the Reporting Period and the HOKLAS accredited certificate of laboratory are presented in the relevant monthly EM&A reports.  

 

3.8      Derivation of Action/Limit (A/L) Levels

3.8.1        The baseline results form the basis for determining the environmental acceptance criteria for the impact monitoring.  According to the approved Environmental Monitoring and Audit Manual, the air quality, construction noise and water quality criteria were set up, namely Action and Limit levels are listed in Tables 3-8, 3-9 and 3-10.

Table 3-8             Action and Limit Levels for Air Quality Monitoring

Monitoring Station

Action Level (mg /m3)

Limit Level (mg/m3)

1-hour TSP

24-hour TSP

1-hour TSP

24-hour TSP

AM1c ($)

265

143

500

260

AM2

268

149

AM3

269

145

AM4b

267

148

AM5a

268

143

AM6

269

148

AM7b

275

156

AM8 ($)

269

144

AM9b ($)

271

151

$ AM1c and AM8 were ceased after last monitoring carried out on 7 July 2020 and 10 July 2020 respectively according to Partial Termination Proposal approved by EPD on 9 July 2020. Besides, AM9b was ceased after last monitoring carried out on 4 May 2021 according to Partial Termination Proposal approved by EPD on 4 May 2021.

 

Table 3-9             Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

NM1($), NM2a, NM3, NM4, NM5, NM6, NM7($), NM8($), NM9($), NM10($)

When one or more documented complaints are received

75 dB(A)Note 1 & Note 2

Note 1:  Acceptable Noise Levels for school should be reduced to 70 dB(A) and65 dB(A) during examination period.

Note 2:  If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the NCA have to be followed.

$ NM1 and NM7 were ceased after last monitoring carried out on 7 July 2020 and 10 July 2020 respectively according to Partial Termination Proposal approved by EPD on 9 July 2020. Besides, NM8, NM9 and NM10 were ceased after last monitoring carried out on 29 April 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021.

 

Table 3-10           Action and Limit Levels for Water Quality

Parameter

Performance criteria

Monitoring Location

WM1

WM2A(a)

WM2B

WM3x

WM4($)

DO (mg/L)

Action Level

(*)4.23

(**)4.00

(*)4.74

(**)4.00

(*)4.14

Limit Level

(#)4.19

(**)4.00

(#)4.60

(**)4.00

(#)4.08

Turbidity (NTU)

Action Level

51.3

24.9

11.4

13.4

35.2

AND  120% of upstream control station of the same day

Limit Level

67.6

33.8

12.3

14.0

38.4

AND  130% of upstream control station of the same day

SS (mg/L)

Action Level

54.5

14.6

11.8

12.6

39.4

AND  120% of upstream control station of the same day

Limit Level

64.9

17.3

12.4

12.9

45.5

AND  130% of upstream control station of the same day

Remarks:

(*)      The Proposed Action Level of Dissolved Oxygen is adopted to be used 5%-ile of baseline data

(**)  The Proposed Action & Limit Level of Dissolved Oxygen is used 4mg/L

(#)     The Proposed Limit Level of Dissolved Oxygen is adopted to be used 1%-ile of baseline data

($) WM4, WM4-CA and WM4-CB were ceased after last monitoring carried out on 3 May 2021 according to Partial Termination Proposal for Contract 3 approved by EPD on 4 May 2021.

 

3.8.2        Should non-compliance of the environmental quality criteria occurs, remedial actions will be triggered according to the Event and Action Plan which presented in Appendix E.

 

3.9      Data Management and Data QA/QC Control

3.9.1        All monitoring data will be handled by the ET’s in-house data recording and management system.  The monitoring data recorded in the equipment will be downloaded directly from the equipment at the end of each monitoring day.  The downloaded monitoring data will input into a computerized database properly maintained by the ET.  The laboratory results will be input directly into the computerized database and checked by personnel other than those who input the data.

 

3.9.2        For monitoring parameters that require laboratory analysis, the local laboratory shall follow the QA/QC requirements as set out under the HOKLAS scheme for the relevant laboratory tests.

 

4        Air Quality Monitoring

4.1      General

4.1.1        Proposal for partial termination of the construction phase EM&A programme for Contract 2, Contract 4, Contract 7 and Contract SS C505 was approved by EPD on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.17). The Partial termination proposal for Contract 3 was approved by EPD on 4 May 2021 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.18). The corresponding air quality monitoring stations AM1c, AM8 and AM9b ceased accordingly, while monitoring at other monitoring stations continued in the Reporting Period.

 

4.2      Summary of Monitoring Results

4.2.1        Summary of air quality monitoring results during the Reporting Period are tabulated in Table 4-1.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F.

Table 4-1            Summary of Air Quality Monitoring Results

Monitoring Location

1-hour TSP (µg/m3)

24-hour TSP (µg/m3)

Max

Min

Mean

Max

Min

Mean

AM2

92

42

69

126

30

63

Record Date

29-Dec-22

21-Jan-23

48 events

24-Dec-22

15-Dec-22

16 events

AM3

97

49

75

114

13

41

Record Date

5-Dec-22

21-Jan-23

48 events

10-Nov-22

15-Dec-22

16 events

AM4b

101

46

76

54

24

35

Record Date

1-Nov-22

24-Nov-22

51 events

21-Jan-23

17-Nov-22

16-Dec-22

16 events

AM5a

97

42

72

52

11

26

Record Date

1-Nov-22

24-Nov-22

51 events

27-Jan-23

5-Nov-22

16 events

AM6

97

44

73

111

17

60

Record Date

1-Nov-22

24-Nov-22

51 events

28-Dec-22

13-Jan-23

16 events

AM7b

95

39

70

57

15

37

Record Date

12-Dec-22

24-Nov-22

51 events

28-Dec-22

16-Dec-22

16 events

 

4.2.2        Breaches of air quality A/L levels and statistical analysis of compliance for the air quality monitoring results are summarized in Table 4-2.

Table 4-2             Summaries of Breaches of Air Quality A/L Levels

Location

Exceedance

1-hour TSP

24- hour TSP

Total

AM2

Action Level

0

0

0

Limit Level

0

0

0

AM3

Action Level

0

0

0

Limit Level

0

0

0

AM4a

Action Level

0

0

0

Limit Level

0

0

0

AM5a

Action Level

0

0

0

Limit Level

0

0

0

AM6

Action Level

0

0

0

Limit Level

0

0

0

AM7b

Action Level

0

0

0

Limit Level

0

0

0

 

4.2.3        In the Reporting Period, all the 1-hour TSP and 24-hour TSP monitoring results were below the Action/Limit Levels. 

 

4.2.4        The summary of weather conditions during the Reporting Period is presented in Appendix G.

 

5        Construction Noise Monitoring

5.1      General

Proposal for partial termination of the construction phase EM&A programme for Contract 2, Contract 4, Contract 7 and Contract SS C505 was approved by EPD on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.17). The Partial termination proposal for Contract 3 was approved by EPD on 4 May 2021 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.18).  The corresponding noise quality monitoring stations NM1, NM7, NM8, NM9 and NM10 ceased accordingly, while monitoring at other monitoring stations continued in the Reporting Period.

 

5.2      Summary of Monitoring Results

5.2.1        The sound level meter was set in 1m from the exterior of the building façade including noise monitoring locations NM3, NM4, NM5 and NM6. No façade correction (+3 dB(A) is added according to acoustical principles and EPD guidelines.  However, free-field status is performed at NM2a and façade correction (+3 dB(A) has added according to the requirement.

 

5.2.2        Summary of noise monitoring results during the Reporting Period are tabulated in Table 5-1.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F.

Table 5-1            Summary of Construction Noise Monitoring Results

Monitoring Location

Leq, 30min (dB((A))

Max

Min

NM2a(*)

73

57

Record Date

28-Dec-22

22-Dec-22

NM3

63

57

Record Date

26-Jan-23

12-Dec-22

NM4

66

57

Record Date

4-Jan-23, 26-Jan-23

30-Nov-22, 12-Dec-22

NM5

58

46

Record Date

24-Nov-22, 20-Jan-23

29-Dec-22

NM6

64

54

Record Date

1-Nov-22

12-Dec-22

(*)         façade correction (+3 dB(A) is added according to acoustical principles and EPD guidelines

 

5.2.3        Breaches of construction noise A/L levels and statistical analysis of compliance for construction noise monitoring results are summarized in Table 5-2.

Table 5-2             Summaries of Breaches of Construction Noise A/L Levels

Station

Limit Level

Action Level

Received Date

NM2a

0

0

N/A

NM3

0

NM4

0

NM5

0

NM6

0

 

5.2.4        In this Reporting Period, the noise level measured at all designated monitoring locations were below 75dB(A).  No Action level and Limit Level exceedance was triggered and no corrective action was required.


 

6        Water Quality Monitoring

6.1      General

6.1.1        Proposal for partial termination of the construction phase EM&A programme for Contract 2, Contract 4, Contract 7 and Contract SS C505 was approved by EPD on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.17). The Partial termination proposal for Contract 3 was approved by EPD on 4 May 2021 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.18).  The corresponding monitoring stations WM4, WM4-CA and WM4-CB ceased accordingly, while monitoring at other monitoring stations in the Reporting Period.

 

6.2      Summary of Monitoring Results

6.2.1        Summary of monitoring results during the Reporting Period are tabulated in Tables 6-1 and 6-3.  The relevant graphical plots throughout the Reporting Period are presented in Appendix F.

 

6.2.2        Water sampling was unable to carry out at WM3-C, WM2B and WM2B-C in the Reporting Period due to shallow water. Besides, WM1-C was also unable to carry out at some of the monitoring days in the Reporting Period due to shallow water. The Photo records of WM1-C, WM2B, WM2B-C and WM3-C are presented in the relevant monthly EM&A reports.

 

6.2.3        In accordance with “Event and Action Plan”, the water quality monitoring frequency shall be increased to daily when exceedance recorded at the exceeded monitoring location.  In the Reporting Period, no exceedance was recorded at all monitoring locations.

 

Table 6-1   Summary of the Water Quality Monitoring Results – Contract 6

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM1

WM1- Control

WM1

WM1- Control

WM1

WM1- Control

Min

4.6

4.7

5.9

25.6

7

37.5

Max

9.3

8.2

91.9

742

134

1415

Average

7.6

7.4

34.7

139.5

35.2

259.1

 

Table 6-2             Summary of the Water Quality Monitoring Results – Contract 6

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM2A(a)

WM2A-C

WM2B

WM2B-C

WM2A(a)

WM2A-C

WM2B

WM2B-C

WM2A (a)

WM2A-C

WM2B

WM2B-C

Min

3.9

6.9

*

*

6.4

9.5

*

*

6

8.5

*

*

Max

8.5

9.3

*

*

225.5

210.5

*

*

208.5

480

*

*

Average

6.1

7.9

*

*

31.3

41.9

*

*

26.6

48.5

*

*

Remark: (*)During Reporting Period, water sampling was unable to carry out at WM2B and WM2B-C due to shallow water (water depth under 150mm)

 

Table 6-3             Summary of the Water Quality Monitoring Results – Contract 6

Statistics

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

WM3x

WM3- Control

WM3x

WM3- Control

WM3x

WM3- Control

Min

5.5

*

0.3

*

<2

*

Max

9.5

*

12.3

*

11

*

Average

8.0

*

3.9

*

5.1

*

Remark: (*) During Reporting Period, water sampling was unable to carry out at WM3-C due to shallow water (water depth under 150mm)

                                                                                                                                                                                      


 

6.2.4        Breaches of water quality A/L levels and statistical analysis of compliance for the water quality monitoring results are summarized in Tables 6-4.

Table 6-4             Summaries of Breaches of the Existing Water Quality A/L Levels

Reporting Period

No. of sampling day

Location

DO (mg/L)

Turbidity (NTU)

SS (mg/L)

Action

Limit

Action

Limit

Action

Limit

Nov-22

13

WM1

0

0

0

0

0

0

13

WM2A(a)

0

0

0

0

0

0

0

WM2B

0

0

0

0

0

0

13

WM3x

0

0

0

0

0

0

Dec-22

12

WM1

0

0

0

0

0

0

12

WM2A(a)

0

0

0

0

0

0

0

WM2B

0

0

0

0

0

0

12

WM3x

0

0

0

0

0

0

Jan-23

12

WM1

0

0

0

0

0

0

12

WM2A(a)

0

0

0

0

0

0

0

WM2B

0

0

0

0

0

0

12

WM3x

0

0

0

0

0

0

Total

38

WM1

0

0

0

0

0

0

38

WM2A(a)

0

0

0

0

0

0

0

WM2B

0

0

0

0

0

0

38

WM3x

0

0

0

0

0

0

Sum

0

0

0

0

0

0

 

6.2.5        No exceedance was recorded and no corrective action was required in the Reporting Period.

7        ECOLOGY MONITORING

7.1      Monitoring on Woodland Compensation

7.1.1        According to the approved Woodland Compensation Plan (WCP), ecological monitoring for woodland compensation shall be conducted at bi-monthly interval for the first year and the monitoring frequency would be reduced to quarterly from the second year.  

 

7.1.2        As Stage 2 of the enhancement planting work was undertaken in August 2019 has covered all of the 9 monitoring quadrats, the monitoring frequency should have increased from quarterly to bi-monthly interval for the first year of enhancement planting. 

 

7.1.3        The quarterly ecological monitoring for period of June to August 2021 had carried out on 22 and 23 July 2021 by transects inspection and quadrat monitoring.  The quarterly Ecological Monitoring Report was verified by IEC on 7 October 2021 and it has been submitted as a stand-alone copy to supplement the EM&A Report on 7 October 2021.

 

7.1.4        The monitoring for woodland compensation was completed in August 2021 as the last monitoring according to the approved WCP.  The details of findings could refer to the corresponding Quarterly Ecological Monitoring Report.  As advised by the AECOM, the Woodland Compensation Area had been handed over to AFCD after their acceptance of Initial Planting and Enhancement Planting Works, which include the last replanting works in September 2021.

 

7.2      Monitoring on Wetland Compensation

7.2.1        According to the approved Habitat Creation and Management Plan (HCMP), the proposed Wetland Compensation Area (WCA) near the Ping Yeung Interchange adjacent to the section of Ping Yuen River was adopted. Ecological monitoring at implementation and establishment periods of WCA will be conducted to cover the ecological attributes.  Implementation of the wetland will commence within the construction phase after completion of the construction works at Ping Yeung Section.        Monitoring on the WCA will be conducted in implementation and establishment stages.

 

7.2.2        Monitoring of WCA at establishment stage has been conducted for one year duration according to the approved HCMP. The establishment stage of wetland was commenced on 1st October 2020 and report (September 2021) was the last monitoring report for the Wetland Compensation Area.

The monitoring results of ecology and water quality are generally in order, and no follow up measures under the EM&A is required. After establishment stage, AFCD would be responsible of maintenance and the monitoring works. As advised by the AECOM, the handover issue with AFCD is under processing.

 

7.2.3        The revision of HCMP Rev 4.0 prepared by AECOM and has been certified by ETL and verified by IEC on 9 December 2021 and re-submitted to EPD on 16 December 2021 and EPD had no comment on HCMP Rev 4.0 on 1 March 2022.

 

Waste Management

8.1      General Waste Management

8.1.1        Waste management was carried out by an on-site Environmental Officer or an Environmental Supervisor from time to time.

 

8.2      Records of Waste Quantities

8.2.1        All types of waste arising from the construction work are classified into the following:

l   Construction & Demolition (C&D) Material;

l   Chemical Waste;

l   General Refuse

l   Excavated Soil.

 

8.2.2        Whenever possible, materials were reused on-site as far as practicable.  The quantities of waste for disposal in the Reporting Period are summarized in Tables 8-1 and 8-2 and the Waste Flow Table is presented in Appendix H.

Table 8-1            Summary of Quantities of Inert C&D Materials

Type of Waste

Contract

No

Quantity

Disposal Location

Nov 22

Dec 22

Jan 22

Total

C&D Materials (Inert) (in '000m3)

6

1.835

1.001

0.016

2.852

--

Reused in this Contract (Inert) (in '000 m3)

6

0

0

0

0

--

Reused in other Contracts/ Projects (Inert) (in '000 m3)

6

0

0

0

0

--

Disposal as Public Fill (Inert) (in '000 m3)

6

1.835

1.001

0.016

2.852

Tuen Mun 38

 

Table 8-2             Summary of Quantities of C&D Wastes

Type of Waste

Contract

No

Quantity

Disposal Location

Nov 22

Dec 22

Jan 22

Total

Recycled Metal (‘000kg)

6

0

0

0

0

-

Recycled Paper / Cardboard Packing (‘000kg)

6

0

0

0

0

-

Recycled Plastic (‘000kg)

6

0

0

0

0

-

Chemical Wastes (‘000kg)

6

0

0

0

0

-

General Refuses (‘000m3)

6

0.001

0

0.002

0.003

NENT

 

8.2.3        To control the site performance on waste management, the Contractor shall ensure that all solid and liquid waste management works are fully in compliance with the relevant license/permit requirements, such as the effluent discharge license and the chemical waste producer registration.  The Contractor is also reminded to implement the recommended environmental mitigation measures according to the Environmental Monitoring and Audit Manual.

9        Site Inspections

9.1      requirements

9.1.1        According to the approved EM&A Manual, the environmental site inspection shall be formulation by ET Leader.  Weekly environmental site inspections should carry out to confirm the environmental performance.

 

9.1.2        Proposal for partial termination of the construction phase EM&A programme for Contract 2, Contract 4, Contract 7 and Contract SS C505 was approved by EPD on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.17).  The ET’s site inspection and audit for corresponding Contract 2, 4, 7 and SS C505 were ceased after last site inspection undertaken on 10 July 2020.

 

9.1.3        The Partial termination proposal for Contract 3 was approved by EPD on 4 May 2021 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.18).  The ET’s site inspection and audit for Contract 3 was ceased after last site inspection undertaken on 5 May 2021.

 

Contract 6

9.1.4        During the Reporting Period, 14 events of the joint site inspections were undertaken at Contract 6 to evaluate the site environmental performance.  The summaries of the findings during site inspection are presented in Table 9-1 and the details of site inspection can be found in relevant EM&A monthly report.

Table 9-1             Summary of Reminders/Observations of Site Inspection – Contract 6

Reporting Period

Date of site inspection

Nos. of findings / reminders

Follow-Up Status

Nov 2022

1, 8, 15, 24 and 30 November 2022

0

NA

Dec 2022

7, 14, 21 and 29 December 2022

1

NA

Jan 2023

4, 11, 19, 27 and 30 January 2023

2

NA

 

9.1.5        In the Reporting Period, no non-compliance and no observations and reminder was recorded during the site inspections.  The environmental performance of the Project was therefore considered satisfactory.

 

Other Contracts

9.1.6        Since the construction work of Contract 2, 3, 4, 5, 7 and Contract SS C505 has substantially completed. Proposal for partial termination of the construction phase EM&A programme for Contract 2, Contract 3, Contract 4, Contract 7 and Contract SS C505 was approved by EPD, no site inspection was performed.

10    Non-compliance, Complaints, Notifications of Summons and Prosecutions

10.1          Status of Non-compliance Environmental Complaint, Summons and Prosecution

10.1.1    In the Reporting Period, no environmental complaint was recorded.

 

10.1.2    No summons and prosecution under the EM&A Programme was lodged for all Contracts.

 

10.1.3    The statistical summary table of environmental complaint, summons and prosecution are presented in Tables 10-1, 10-2 and 10-3.

Table 10-1           Statistical Summary of Environmental Complaints

Contract No

Reporting Period

Environmental Complaint Statistics

Frequency

Cumulative since commencement of project

Complaint Nature

Project related complaint

6

Nov 22

0

46

Ÿ (24) Water Quality

Ÿ (12) Dust

Ÿ (3) Noise

Ÿ (1) Nuisance

Ÿ (2) Noise and dust

Ÿ (3) Water quality and dust

Ÿ (1) Water quality and noise

(8) water quality

(3) dust

(1) nuisance

(1) water quality and dust

(1) water quality and noise

Dec 22

0

Jan 23

0

 

Table 10-2           Statistical Summary of Environmental Summons

Contract No

Reporting Period

Environmental Summons Statistics

Frequency

Cumulative since commencement of project

Complaint Nature

6

Nov 22

0

0

NA

Dec 22

0

Jan 23

0

 

Table 10-3           Statistical Summary of Environmental Prosecution

Contract No

Reporting Period

Environmental Prosecution Statistics

Frequency

Cumulative since commencement of project

Complaint Nature

6

Nov 22

0

0

NA

Dec 22

0

Jan 23

0

 

10.1.4    Since the construction works at the Contract 2, 4, 5, 7 and Contract SS C505 was substantially completed, no environmental complaint, summons and prosecution under the EM&A Programme are registered.

11    Implementation Status of Mitigation Measures

11.1          General Requirements

11.1.1    The environmental mitigation measures that recommended in the Implementation Schedule for Environmental Mitigation Measures (ISEMM) in the approved EM&A Manual covered the issues of dust, noise, water and waste and they are summarized presented in Appendix I.

 

Implementation of Mitigation Measures during Construction Phase

 

11.1.2    Contract 6 under the Project shall be implementing the required environmental mitigation measures according to the approved EM&A Manual as subject to the site condition.  Environmental mitigation measures have been generally implemented by Contract 6 according to the ISEMM, where applicable.   

 

 

Implementation of Mitigation Measures during Operation Phase

 

11.1.3    The Heung Yuen Wai (HYW) Highway and connecting roads under the Project was opened on 26 May 2019. Since partial commencement of operation is the same as the commencement of operation for the entire project from EIAO perspective.  All relevant requirements as stipulated in the EP and the approved EIA report (including the EM&A Manual) for the commencement of operation of the Project shall be strictly complied with.

 

11.1.4    In general, the recommended mitigation measures for operation stage of HYW Highway and connecting roads under the Project have been implemented.  The implementation status of mitigation measures for operation phase in the Reporting Period are summarized in Appendix N. 

 

11.1.5    For more details about the implementation status of mitigation measures for operation phase with photo illustration, an Environmental Monitoring and Audit report on the implementation of the mitigation measures for operation stage of the Project will be disposed to EPD not later than three months after the commencement of operation of the Project under EP-404/2011/D condition 5.5. The abovementioned report was submitted to EPD on 23 August 2019.

 

11.1.6    Upon BCP partially opened on 26 August 2020, an operation phase EM&A report covering the operation of the BCP (Version 3) was subsequently submitted to EPD in accordance with the EP-404/2011/D condition 5.5. EPD on 10 February 2021 wrote to the EP Holder that they considered the Operation Phase EM&A Report was generally in order and met the EP Condition 5.5.

 

11.1.7    Pursuant to EM&A Manual Section 10.2, the implementation of landscape mitigation measures during establishment period shall be audited by a qualified landscape architect.  Site inspection for establishment period was commenced in August 2019 and competed in July 2020 respectively.  The relevant checklists were included in the corresponding EM&A Reports.  Besides, further to the Landscape Plan (Rev.4) approved by EPD via letter dated 7 June 2021, minor changes on site layout was required, AECOM then submitted the Landscape Plan Rev.5 to EPD on 31 May 2022 for approval and has been approved by EPD on 16 September 2022.

12    Conclusions and Recommendations

12.1          Conclusions

12.1.1    This is the 38th Quarterly EM&A Summary Report presenting the monitoring results and inspection findings for the Reporting Period from 1 November 2022 to 31 January 2023.

 

12.1.2    For air quality monitoring, no 1-hour TSP and 24-hour TSP monitoring results triggered the Action /Limit Level.

 

12.1.3    In the Reporting Period, no construction noise exceedance was recorded and no complaint (which triggered the Action Level exceedance) was received.

 

12.1.4    For water quality monitoring, no exceedance was recorded in the Reporting Period.

 

12.1.5    No environmental compliant, summons or successful prosecutions were recorded in the Reporting Period.

 

12.1.6    During the Reporting Period, weekly joint site inspection by the RE, IEC, ET with the relevant Main-contractor were carried out for Contracts 6 in accordance with the EM&A Manual stipulation.  No non-compliance observed during the site inspection.

 

12.2          Recommendations

12.2.1    Apart from the additional works at Kong Yiu Channel area, construction works under the Project were substantial completed, the potential environmental impacts associated with Project are considered negligible.  However, the Contractor was reminded that the environmental mitigation measures shall be properly implemented and maintained where applicable, as per the Mitigation Implementation Schedule, in the remaining construction period and operational phase. 

 

12.2.2    For construction work at Kong Yiu Channel area, diversion of existing stream courses and implementation of earth bunds were provided as water quality mitigation measures and The Contractor was reminded that all effluent discharge shall fulfill the requirement of Discharge Licence under the Water Pollution Control Ordinance.