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.99) – October 2021

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

11 November 2021

TCS00694/13/600/R2694v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

8 November 2021

First Submission

2

11 November 2021

Amended according to the IEC’s comment on 11 November 2021

 

 

 

 

 

 


 

 

 

 

 

 

executive summary

ES01            This is the 99th monthly Environmental Monitoring & Audit (EM&A) report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 October 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 (#)

96

24-hour TSP

6 (#)

30

Construction Noise

Leq(30min) Daytime

5 (~)

20

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

12 Scheduled & 0 extra (*)

WM2A(a) & WM2A-Cx

12 Scheduled & 0 extra (*)

WM2B & WM2B-C

12 Scheduled & 0 extra (*)

WM3x &WM3-C

12 Scheduled & 0 extra (*)

Joint Site Inspection / Audit

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

Contract 6

4

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.  In view of substantial completion of construction work and in consideration of the scale and nature of remaining works under Contract 6, a revised “Proposal for termination of the Construction Phase EM&A Programme for the remaining Contract 6 of the Project” submitted to EPD on 15 July 2021 for approval.  However, it is noted that 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.  In consideration of the additional works pose potential environmental impact, the Proposal was withdrawn by AECOM on 25 October 2021.

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 7, 12, 20 and 28 October 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   21

5.1            General  21

5.2            Noise Monitoring Results  21

6     Water Quality Monitoring   22

6.1            General  22

6.2            Results of Water Quality Monitoring   22

7     Ecology Monitoring   24

7.1            Monitoring on Woodland Compensation   24

7.2            Monitoring on Wetland Compensation   24

8     Waste Management   25

8.1            General Waste Management  25

8.2            Records of Waste Quantities  25

9     Site Inspection   26

9.1            requirements  26

9.2            Findings / Deficiencies During the Reporting Month   26

10   Environmental Complaint and Non-Compliance   27

10.1          Environmental Complaint, Summons and Prosecutions  27

11   Implementation Status of Mitigation Measures  28