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.57) – April 2018

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

14 May 2018

TCS00694/13/600/R1546v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

10 May 2018

First Submission

2

14 May 2018

Amended according to the IEC’s comments on 10 May 2018

 

 

 

 

 

 


 

 

 

 

executive summary

ES01            This is the 57th monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 30 April 2018 (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

44 (^)

Construction Noise

Leq(30min) Daytime

10

40

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

WM4, WM4-CA &WM4-CB

13 Scheduled & 2 extra

Ecology

Woodland compensation

i)      General Health condition of planted species

ii)     Survival of planted species

9 Quadrats and transect

0

Joint Site Inspection / Audit

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

Contract 2

4

Contract 3

4

Contract 4

4

Contract 6

4

Contract 7

4

Contract SS C505 (#)

4

Remark:

(#) IEC only joined one (1) event of site inspection for Contract SS C505.

(*) In the whole Reporting Period, water sampling was unable to carry out at WM2B and WM2B-C due to shallow water (water depth under 150mm)  

(^) 24-hour TSP monitoring at AM1b has been temporary suspended since 27 April 2018 as rented land was demolished and returned to the landlord. Alterative location to replaced AM1b is being seeking by ET for IEC and EPD approval.

 

Action and Limit (A/L) Levels exceedance

ES04            In the Reporting Period, no air quality and construction noise exceedance and valid noise complaint was recorded.  For water quality monitoring, a total of three (3) Action/Limit Level exceedances were 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

2

2

-       All exceedances were not project related.

0

The Contractor should fully implement water quality mitigation measure.

SS

0

1

1

0

ES05            Investigation Report for all water quality exceedances was completed by ET.  Investigation results revealed that the Contractor had properly implemented water quality mitigation measures such as well-maintained the wastewater treatment facility and covered the expose area with impervious sheet. It was concluded that the exceedances were related to the unknown source of muddy water contributed from outside the project area and not caused by the works under the Project. Nevertheless, the Contractor was reminded to fully implement the water quality mitigation measure throughout the constriction phase as far as practicable.

Environmental Complaint

ES06            In this Reporting Period, two (2) documented environmental complaints were received under the EM&A programme regarding to the water quality issue. The investigation report for the complaint for Contract 2 regarding the foamy discharge was under reviewed by IEC while the other complaint for Contract SS C505 is underway by ET.

Notification of Summons and Successful Prosecutions

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

Reporting Change

ES08            No reporting changes were made 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, IEC, ET and the Contractor on 6, 13, 20 and 27 April 2018.  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, IEC, ET and the Contractor on 4, 12, 18 and 26 April 2018.  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, IEC, ET and the Contractor on 6, 13, 16 and 27 April 2018.  No non-compliance was noted.