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.101) – December 2021

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

13 January 2022

TCS00694/13/600/R2718v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

10 January 2022

First Submission

2

13 January 2022

Amended according to the IEC’s commnets

 

 

 

 

 

 


 

 

 

 

 

 

 

executive summary

ES01            This is the 101st monthly Environmental Monitoring & Audit (EM&A) report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 December 2021 (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            Substantial completion for the Works has been achieved for all Contracts 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, 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 (#)

102

24-hour TSP

6 (#)

36

Construction Noise

Leq(30min) Daytime

5 (~)

24

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

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

Contract 6

5

Remark:

                          (*) Water sampling was unable to carry out at WM2B and WM2B-C in the Reporting Period due to shallow water. Besides, WM3-C was also unable to carry out 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. Water quality monitoring on 13 October 2021 was cancelled due to adverse weather condition (Typhoon Signal No.8 inforce on 13 October 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.

 

ES05            Construction phase for Contract 6 are substantially completed. However, additional works involving the construction of flood walls and maintenance ramp around Kong Yiu Drainage Channel to the south of Heung Yuen Wai Boundary Control Point (BCP) are proposed to be carried out under Contract 6 between Q4 of 2021 and Q3 2022.  The Variation of Environmental Permit of the Project was submitted by AECOM and under review by EPD.

Action and Limit (A/L) Levels exceedance

ES06            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

ES07            No environmental complaint was recorded in the Reporting Period.

Notification of Summons and Successful Prosecutions

ES08            No environmental summons and prosecutions were recorded in the Reporting Period. 

Reporting Change

ES09            No reporting change was recorded in the Reporting period.

Site Inspection

ES10            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, ET, IEC and the Contractor on 1, 10, 15, 22 and 30 December 2021.  No non-compliance was noted during the site inspection. 

Future Key Issues

ES11            Since the 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.  

 

 

 


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

4     Air Quality Monitoring   19

4.1            General  19

4.2            Air Quality Monitoring Results  19

5     Construction Noise Monitoring   22

5.1            General  22

5.2            Noise Monitoring Results  22

6     Water Quality Monitoring   23

6.1            General  23

6.2            Results of Water Quality Monitoring   23

7     Ecology Monitoring   25

7.1            Monitoring on Woodland Compensation   25

7.2            Monitoring on Wetland Compensation   25

8     Waste Management   26

8.1            General Waste Management  26

8.2            Records of Waste Quantities  26