Job No.: TCS00694/13










Agreement No. CE 45/2008 (CE)

Liantang/Heung Yuen Wai

Boundary Control Point and Associated Works










27th Quarterly Environmental Monitoring & Audit Summary Report –

(February to April 2020)






Prepared For






Civil Engineering and Development

Department (CEDD)










Quality Index


Reference No.

Prepared By

Certified By

26 May 2020


Nicola Hon

(Environmental Consultant)

T.W. Tam

(Environmental Team Leader)







21 May 2020

First Submission


26 May 2020

Amended against IEC’s comment










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 27th 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 February 2020 to 30 April 2020 (hereinafter “Reporting Period”).


Environmental Monitoring and Audit Activities

ES.02.   In the Reporting Period, the construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project included Contract 2, Contract 3, Contract 6, Contract 7 and Contract SS C505.  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



24-hour TSP



Construction Noise

Leq(30min) Daytime



Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C,

37 scheduled

WM2A & WM2A-Cx

37 scheduled


(*) 37 Scheduled

WM3x &WM3-C

(*)37 scheduled &1 extra


37 scheduled


Woodland compensation

i)      General Health condition of planted species

ii)     Survival of planted species

9 Quadrats and transect


Wetland compensation

i)        Site inspection

Contract 6


Joint Site Inspection / Audit

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

Contract 2^


Contract 3


Contract 4


Contract 6


Contract 7


Contract SS C505 (#)


Note: Extra monitoring day was due to measurement results exceedance

(#) IEC only joined inspection for Contract SS C505 once per month.

(*) During the whole reporting period, water sampling was unable to carry out at WM2B, WM2B-C and WM3-C due to shallow water (water depth under 150mm)

(^)As informed by Contractor of Contract 2, DHK has decided to close all projects and offices in Hong Kong as a precautionary measure against spreading of novel coronavirus. Thus, the environmental site inspection by Environmental Team in period of 1 to 16 February 2020 was affected and has to be cancelled.


ES.03.   The Heung Yuen Wai Highway and connecting roads under the Project was opened on 26 May 2019.  Following the partial commencement of the Project, apart from the construction work under Contract 6, major construction work under Contract 2, Contract 3, Contract 4, Contract 7 and Contract SS C505 were substantially completed.  In view of insignificant environmental impacts of the remaining outstanding construction works of these contracts, “proposal for partial termination of the construction phase EM&A programme” for Contracts 2, 3, 4, 7 and SSC505 which verified by Independent Environmental Checker, was submitted to Environmental Protection Department (EPD) for approval on 6 April 2020 while the EM&A works for Contract 6 will remain. The proposal is under review by EPD.

Breaches of Action/Limit levels

ES.04.   In the Reporting Period, no noise exceedance and valid noise complaint was registered for construction noise.  For air quality, no exceedance recorded for 1-hour and 24-hour TSP monitoring. For water quality monitoring, one (1) Limit Level exceedance was recorded under the Project.  The summary of exceedance for the Reporting Period is shown below.


Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued


Corrective Actions

Air Quality

1-hour TSP






24-hour TSP






Construction Noise

Leq(30min) Daytime






Water Quality











Refer to ES.05

The Contractor should fully implement water quality mitigation measure.






ES.05.   Investigation Report for water quality exceedance has been conducted by ET accordingly. Investigation result revealed that Contractor of Contract 2 and Contract 6 had implemented water quality mitigation measures and no adverse water quality impact was observed during site inspection. It is considered that the exceedance was unlikely caused by the works under Contact 2 and Contract 6.


Environmental Complaint

ES.06.   In this Reporting Period, one environmental complaint was received regarding night time construction work (at about 2330 – 0300 hrs) and construction dust nuisance related to Contract 6.  The investigation report was conducted by ET accordingly and revealed that there were no construction activities under Contract 6 during the concerned period and it is considered that the complaint was no valid to Contract 6.


Notification of Summons and Successful Prosecutions

ES.07.   No environmental summons or successful prosecutions were recorded in the Reporting Period.


Reporting Changes

ES.08.   As advised by the Contractor, construction of WCA was commenced on 11 November 2019.  According to the approved HCMP and further clarified by the RE and Contractor, site inspection is required during construction of wetland.


Future key issues

ES.09.   During wet season, preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual.

ES.10.   In addition, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

ES.11.   Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.


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  7

3       Project Organization and Construction progress  10

3.1          General  10

3.2          Monitoring Parameters  10

3.3          Monitoring Locations  10

3.4          Monitoring Frequency and Period   12

3.5          Monitoring Equipment  13

3.6          Monitoring Methodology   15

3.7          Equipment Calibration   17

3.8          Derivation of Action/Limit (A/L) Levels  17

3.9          Data Management and Data QA/QC Control  18

4       Air Quality Monitoring   20

4.1          General  20

4.2          Summary of Monitoring Results  20

5       Construction Noise Monitoring   22

5.1          General  22

5.2          Summary of Monitoring Results  22

6       Water Quality Monitoring   24

6.1          General  24

6.2          Summary of Monitoring Results  24


7.1          Monitoring on Woodland Compensation   27

7.2          Monitoring on Wetland Compensation   27

8       Waste Management   28

8.1          General Waste Management  28

8.2          Records of Waste Quantities  28

9       Site Inspections  30

9.1          requirements  30

10     Non-compliance, Complaints, Notifications of Summons and Prosecutions  33

10.1        Status of Non-compliance Environmental Complaint, Summons and Prosecution   33

11     Implementation Status of Mitigation Measures  36

11.1        General Requirements  36

12     Conclusions and Recommendations  38

12.1        Conclusions  38

12.2        Recommendations  39


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 SS C505 & 6

Table 6-2      Summary of the Water Quality Monitoring Results – Contracts 2 & 3

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

Table 6-4      Summary of the Water Quality Monitoring Results – Contracts 2 & 6

Table 6-5      Summaries of Breaches of the Existing Water Quality A/L Levels

Table 6-6      Summary of Water Quality Exceedance in the Reporting Period

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 2

Table 9-2      Summary of Reminders/Observations of Site Inspection – Contract 3

Table 9-3      Summary of Reminders/Observations of Site Inspection – Contract 4

Table 9-4      Summary of Reminders/Observations of Site Inspection – Contract 6

Table 9-5      Summary of Reminders/Observations of Site Inspection – Contract SS C505

Table 9-6      Summary of Reminders/Observations of Site Inspection – Contract 7

Table 10-1    Statistical Summary of Environmental Complaints

Table 10-2    Statistical Summary of Environmental Summons

Table 10-3    Statistical Summary of Environmental Prosecution

Table 11-1    Environmental Mitigation Measures


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  Weather information

Appendix H  Waste Flow Table

Appendix I  Implementation Schedule for Environmental Mitigation Measures

Appendix J  Implementation Status of mitigation measures for Operation Phase






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