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.63) – October 2018

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

13 November 2018

TCS00694/13/600/R1849v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

8 November 2018

First Submission

2

13 November 2018

Amended according to the IEC’s comments on 9 and 13 November 2018

 

 

 

 

 

 


 

 

 

 

executive summary

ES01            This is the 63rd monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 October 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

150

24-hour TSP

9

49

Construction Noise

Leq(30min) Daytime

10

45

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

14 Scheduled & 0 extra

WM2A(a) & WM2A-Cx

14 Scheduled & 3 extra

WM2B & WM2B-C

14 Scheduled & 0 extra (*)

WM3x &WM3-C

14 Scheduled & 1 extra

WM4, WM4-CA &WM4-CB

14 Scheduled & 0 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 (#)

5

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)  

 

Action and Limit (A/L) Levels exceedance

ES04            In the Reporting Period, no construction noise exceedance and valid noise complaint was recorded. For air quality monitoring, two (2) Limit Level exceedances of 24-hour TSP was recorded. Moreover, sixteen (16) Limit Level exceedances were recorded during 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

2

2

Underway by ET

--

--

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

--

Water Quality

DO

0

0

0

-

--

--

Turbidity

0

7

7

Refer to ES.06

The Contractor should fully implement water quality mitigation measure.

SS

0

9

9

ES05            There were two (2) Limit Level exceedances of 24-hour TSP recorded at Locations AM2 and AM3.  Investigation for cause of exceedances was underway by ET and will be presented in next Monthly EM&A Report.

ES06            A total of sixteen (16) Limit Level exceedances were recorded during water quality monitoring. Investigation for cause of water quality exceedances have conducted by ET. Investigation report revealed that the exceedances recorded at WM2A(a) on 9, 10, 11 and 12 October 2018 were not caused by the works under the Project.  Furthermore, the investigation for exceedances recorded at WM2A(a) on 27 and 29 October 2018 and at WM3x on 27, 29 and 30 October 2018 are still underway by ET and the investigation result will be presented in next Monthly EM&A Report.

Environmental Complaint

ES07            In this Reporting Period, three (3) documented environmental complaints were received under the EM&A programme with respective to the dust, muddy water and noise issues.  The complaint details and status of investigation are summarized below.

(a)    A public complaint was received on 5 October 2018 regarding the dust concerns near the junction of Sha Tau Kok Road and Wo Keng Shan Road and site exit at Tai Tong Wu.  Investigation has conducted by ET and the report revealed the Contractors have implemented wheel washing facilities and no dust and soil carrying by site vehicles to STK road were observed.  It is considered that the complaint was not valid to the project.

(b)   A public complaint was on 5 October 2018 regarding muddy road found