Job No.: TCS00694/13

 

 

 

 

 

 

 

 

 

Agreement No. CE 45/2008 (CE)

Liantang/Heung Yuen Wai

Boundary Control Point and Associated Works

 

 

 

 

 

 

 

 

 

28th Quarterly Environmental Monitoring & Audit Summary Report –

(May to July 2020)

 

 

 

 

 

Prepared For

 

 

 

 

 

Civil Engineering and Development

Department (CEDD)

 

 

 

 

 

 

 

 

 

Quality Index

Date

Reference No.

Prepared By

Certified By

3 September 2020

TCS00694/13/600/R2494v3

Nicola Hon

(Environmental Consultant)

T.W. Tam

(Environmental Team Leader)

 

 

Version

Date

Description

1

26 August 2020

First Submission

2

1 September 2020

Amended against IEC’s comment on 28 August 2020

3

3 September 2020

Amended against IEC’s comment on 3 September 2020

 

 

 

 

 

 

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 28th 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 May 2020 to 31 July 2020 (hereinafter “Reporting Period”).

 

Environmental Monitoring and Audit Activities

ES.02.   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 Environmental Protection Department (EPD) on 9 July 2020 (EPD’s ref.: ( ) in Ax (3) to EP 2/N7/A/52 Pt.17).  The termination proposal covers air quality monitoring stations AM1c and AM8, noise monitoring stations NM1 and NM7 and ET’s site inspection and audit for relevant works area for Contract 2, 4, 7 and SS C505.  The last monitoring and site inspections of the corresponding stations / contacts are summarized in below table.

 

Environmental Aspect

Monitoring Parameters / Inspection

 Monitoring Station

Last Monitoring/ Inspection Date

Air Quality

1-hour TSP

AM1c

7 July 2020

AM8

10 July 2020

24-hour TSP

AM1c

6 July 2020

AM8

8 July 2020

Construction Noise

Leq(30min) Daytime

NM1

7 July 2020

NM7

10 July 2020

Site Environmental Inspection

Site Environmental Inspection

Contract 2

10 July 2020

Contract 4

10 July 2020

Contract 7

10 July 2020

Contract SS C505

10 July 2020

 

ES.03.   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

9 (@)

411

24-hour TSP

9 (@)

136

Construction Noise

Leq(30min) Daytime

10 (~)

124

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C,

40 scheduled

WM2A & WM2A-Cx

40 scheduled

WM2B & WM2B-C

(*) 40 Scheduled

WM3x &WM3-C

(*) 40 scheduled

WM4, WM4-CA &WM4-CB

40 scheduled

Ecology

Woodland compensation

i)      General Health condition of planted species

ii)     Survival of planted species

9 Quadrats and transect

1

Wetland compensation

i)        Site inspection

Contract 6

13

Joint Site Inspection / Audit

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

Contract 2

10

Contract 3

13

Contract 4

10

Contract 6

13

Contract 7

10

Contract SS C505 (#)

10

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 due to shallow water. Besides, WM3-C was also unable to carry out in most of the monitoring days due to shallow water. (Water depth under 150mm)

(@) Number of air monitoring location changed to 7 since the partial termination proposal approved by EPD on 9 July 2020.

(~) Number of noise monitoring location changed to 8 since the partial termination proposal approved by EPD on 9 July 2020.

 

Breaches of Action/Limit levels

ES.04.   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.05.   No environmental complaint was recorded in the Reporting Period.

 

Notification of Summons and Successful Prosecutions

ES.06.   No environmental summons or successful prosecutions were recorded in the Reporting Period.

 

Reporting Changes

ES.07.   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).  Therefore, air quality monitoring stations AM1c and AM8, noise monitoring stations NM1 and NM7 and ET’s site inspection and audit for relevant works area for Contract 2, 4, 7 and SS C505 was ceased accordingly.

 

Future key issues

ES.08.   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.09.   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.10.   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       ECOLOGY MONITORING   26

7.1          Monitoring on Woodland Compensation   26

7.2          Monitoring on Wetland Compensation   26

8       Waste Management   27

8.1          General Waste Management  27

8.2          Records of Waste Quantities  27

9       Site Inspections  29

9.1          requirements  29

10     Non-compliance, Complaints, Notifications of Summons and Prosecutions  32

10.1        Status of Non-compliance Environmental Complaint, Summons and Prosecution   32

11     Implementation Status of Mitigation Measures  34

11.1        General Requirements  34

12     Conclusions and Recommendations  36