Job No.: TCS00694/13

 

 

 

 

 

 

 

 

 

Agreement No. CE 45/2008 (CE)

Liantang/ Heung Yuen Wai

Boundary Control Point and Associated Works

 

 

 

 

 

 

 

 

 

Monthly Environmental Monitoring and Audit Report (No.121) – August 2023

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

12 September 2023

TCS00694/13/600/R2847v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

11 September 2023

First Submission

2

12 September 2023

Amended As Per IEC’s comment

 

 

 

 

 

 


 

 

 

 

executive summary

ES01            This is the 121st monthly Environmental Monitoring & Audit (EM&A) report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 August 2023 (hereinafter ‘the Reporting Period’).

Environmental Monitoring and Audit Activities

ES02            To facilitate the project management and implementation, Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project is divided to six CEDD contracts including 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) and Contract 7 (NE/2014/03) and an ArshSD contract (Contract SS C505).

ES03            The construction activities under Contract 5 have been completed in September 2016 and area under Contract 5 were handover to SS C505 and Contract 6 after completion.  Subsequently, substantial completion for the Works for Contract 2, 3, 4, 6, 7 and SS C505 has been achieved in 2019.  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). Therefore, air quality monitoring stations AM1c, AM8 & AM9b, noise monitoring stations NM1, NM7, NM8, NM9 & NM10 and water quality monitoring stations WM4, WM4-CA & WM4-CB and ET’s site inspection and audit for relevant works area for Contracts 2, 3, 4, 5, 7 and SS C505 was ceased accordingly.

ES04            In the Reporting Period, environmental monitoring activities under the EM&A programme in the Reporting Period are summarized in the following table.

Environmental Aspect

Environmental Monitoring Parameters / Inspection

Reporting Period

Number of Monitoring Locations to undertake

Total Occasions 

Air Quality

1-hour TSP

6 (#)

96

24-hour TSP

6 (#)

29

Construction Noise

Leq(30min) Daytime

5 (~)

26

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

13 Scheduled & 0 extra (*)

WM2A(a) & WM2A-Cx

13 Scheduled & 0 extra (*)

WM2B & WM2B-C

13 Scheduled & 0 extra (*)

WM3x &WM3-C

13 Scheduled & 0 extra (*)

Joint Site Inspection / Audit

ET and the Contractor joint site Environmental Inspection and Auditing

Contract 6

5

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

1

Remark:

                         (*) Water sampling was unable to carry out at WM1-C, WM3-C, WM2B and WM2B-C in the Reporting Period due to shallow water. Water sampling was unable to carry out at WM1-C at some of monitoring days in the Reporting Period.  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.  Power supply for HVS for 24-hour TSP monitoring at Location AM3 (Ta Kwu Ling Ambulance Depot) was suspended from 1 February 2023 due to the renovation work of Ta Kwu Ling Ambulance Depot.

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

         

 

 

Action and Limit (A/L) Levels exceedance

ES05            In the Reporting Period, no exceedance was recorded for construction noise, air quality and water quality monitoring. The summary of exceedance in the Reporting Period is shown below.

Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued

Investigation Result

Project related exceedance

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

ES06            No environmental complaint was recorded in the Reporting Period.

Notification of Summons and Successful Prosecutions

ES07            No environmental summons and prosecutions were recorded in the Reporting Period. 

Reporting Change

ES08            Construction works for additional works at Kong Yiu Channel area was completed in May 2023, thus no construction work and waste raised of the Projects was presented in the Reporting Period. Updated EM&A termination proposal (Revision 2) addressing EPD’s comment on 28 July 2023 was certified by ET and verified by IEC in August 2023 and the proposal was submitted to EPD by AECOM in early-August 2023.

Site Inspection

ES09            In the Reporting Period, joint site inspection has been carried out by the ET and the Contractor on 2, 9, 16, 23 and 29 August 2023. Joint site inspection with IEC, ET and the Contractor was carried out on 29 August 2023. No non-compliance was noted during the site inspection.

Future Key Issues

ES10            As construction work of the Project was completed in May 2023, thus no adverse environmental issue arising from the Project is foreseen in the future.   

ES11            The Contractor was reminded to implement the mitigation measure for the Operation Phase as stipulated in the EP and the approved EIA Report.  

 

 


 

Table of Contents

1     Introduction   1

1.1            Project Background   1

1.2            Report Structure  1

2     Project Organization and Construction progress  3

2.1            Construction Contract Packaging   3

2.2            Project Organization   5

2.3            Concurrent Projects  7

2.4            Construction Progress  8

2.5            Summary of Environmental Submissions  8

3     Summary of Impact Monitoring Requirements  9

3.1            General  9

3.2            Monitoring Parameters  9

3.3            Monitoring Locations  9

3.4            Monitoring Frequency and Period   12

3.5            Monitoring Equipment  12

3.6            Monitoring Methodology   14

3.7            Equipment Calibration   16

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

3.9            Data Management and Data QA/QC Control  18