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.79) – February 2020

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

12 March 2020

TCS00694/13/600/R2353v3

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

 1

9 March 2020

First Submission

 2

11 March 2020

Amended against IEC’s comment

 3

12 March 2020

Amended against IEC’s comment

 

 

 


 

 

 

 

 

 

executive summary

ES01            This is the 79th monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 29 February 2020 (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 seven 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            In the Reporting Period, the major construction works under Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works of the Project included Contract 2, Contract 3, Contract 4, 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

Environmental Monitoring Parameters / Inspection

Reporting Period

Number of Monitoring Locations to undertake

Total Occasions 

Air Quality

1-hour TSP

9

135

24-hour TSP

9

45

Construction Noise

Leq(30min) Daytime

10

40

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 & 1 extra (*)

WM4, WM4-CA &WM4-CB

12 Scheduled & 0 extra

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

4

Joint Site Inspection / Audit

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

Contract 2^

2

Contract 3

4

Contract 4

4

Contract 6

4

Contract 7

4

Contract SS C505

4

Remark: (*)Water sampling was unable to carry out at WM2B, WM2B-C and WM3-C in the Reporting Period 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.

Action and Limit (A/L) Levels exceedance

ES04            In the Reporting Period, no exceedance was recorded for construction noise and air quality. For water quality monitoring, one (1) Limit Level exceedance was recorded under the Project.  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

1

1

Refer to ES.05

The Contractor should fully implement water quality mitigation measure.

SS

0

0

0

 

ES05            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

ES06            No environmental complaint was recorded in this Reporting Period.

Notification of Summons and Successful Prosecutions

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

Reporting Change

ES08            No reporting change was recorded in the Reporting period.

Site Inspection

ES09            In this Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 2 has been carried out by the RE, ET and the Contractor on 21 and 28 February 2020 in which IEC joined the site inspection on 21 February 2020.  No non-compliance was noted during the site inspection. 

ES10            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 3 has been carried out by the RE, ET and the Contractor on 6, 13, 21 and 27 February 2020 in which IEC joined the site inspection on 6 February 2020.  No non-compliance was noted during the site inspection. 

ES11            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 4 has been carried out by the RE, ET and the Contractor on 7, 13, 21 and 25 February 2020 in which IEC joined the site inspection on 7 and 21 February 2020.  No non-compliance was noted during the site inspection.  

ES12            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, ET and the Contractor on 6, 13, 20 and 27 February 2020 in which IEC joined the site inspection on 6 February 2020.  No non-compliance was noted during the site inspection. 

ES13            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 7 has been carried out by the RE, ET and the Contractor on 6, 13, 18 and 28 February 2020 in which IEC joined the site inspection on 6 February 2020.  No non-compliance was noted during the site inspection. 

ES14            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract SS C505 has been carried out by the RE, ET and the Contractor on 5, 14, 20 and 28 February 2020. IEC carried out site inspection on 13 February 2020.  No non-compliance was noted during the site inspection.

Future Key Issues

ES15            As wet season is approaching, 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.

ES16            In addition, all