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.49) – August 2017

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

12 September 2017

TCS00694/13/600/R1234v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

8 September 2017

First Submission

2

12 September 2017

Amended according to the IEC’s comments on 12 September 2017

 

 

 

 

 

 


 

 

 

 

 

 

executive summary

ES01            This is the 49th monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 August 2017 (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

45

Construction Noise

Leq(30min) Daytime

10

50

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

13 Scheduled & 1 extra

WM2A(a) & WM2A-Cx

13 Scheduled & 5 extra

WM2B & WM2B-C

(*) 13 Scheduled

WM3x &WM3-C

13 Scheduled & 2 extra

WM4, WM4-CA &WM4-CB

13 Scheduled & 4 extra

Ecology

Woodland compensation

i)     General Health condition of planted species

ii)   Survival of planted species

9 Quadrats

1

Joint Site Inspection / Audit

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

Contract 2

4

Contract 3

5

Contract 4 (#)

4

Contract 6

5

Contract 7

4

Contract SS C505 (#)

5

Note: Extra monitoring day was due to measurement results exceedance

(#) IEC only joined one (1) event of site inspection for Contracts 4 and SS C505.

(*) 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 air quality and construction noise exceedance was recorded.  For water quality monitoring, twenty-six (26) 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

14

14

The exceedances for 24, 28, 29 and 30 were under investigation. All other  exceedances were not project-related

0

The Contractors were reminded to  implement water quality mitigation measures in accordance with ISEMM of the EM&A Manual

SS

0

12

12

0

 

Environmental Complaint

ES05            In this Reporting Period, one (1) documented environmental complaint was received by EPD regarding water quality issue for Contract 2.  Investigation report (IR) for complaints revealed that it was caused by rainstorm and emergency discharge by Contract 2.  The IR has completed and submitted to relevant parties for record.

Notification of Summons and Successful Prosecutions

ES06            No environmental summons or successful prosecutions were recorded in the Reporting Period. 

Reporting Change

ES07            No reporting changes were made in the Reporting Period.

 

Site Inspection

ES08            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 4, 11, 18 and 25 August 2017.  No non-compliance was noted during the site inspection.  

 

ES09            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 3, 10, 16, 24 and 31 August.  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 4 has been carried out by the RE, ET and the Contractor on 4, 11, 18 and 22 August 2017 in which IEC joined the site inspection on 22 August 2017.  No non-compliance was noted.   

 

ES11            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 24 and 30 August 2017.  No non-compliance was noted during the site inspection.  

 

ES12            In the Reporting Period, joint site inspection for Contract 7 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 4, 11, 15 and 25 August 2017.  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 SS C505 has been carried out by the RE, ET and the Contractor on 2, 9, 16, 25 and 30 August 2017 in which IEC joined the site inspection on 25 August 2017.  No non-compliance was noted during the site inspection.  

 

Future Key Issues

ES14            During wet season, 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, in particular for working areas near Ma Wat Channel and Ping Yuen River.

 

ES15            In addition, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

 

ES16            Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.

 

ES17            Since most of construction sites under the Project are located adjacent to villages, the Contractors should fully implement air quality mitigation measures to reduce construction dust emission.

 


 

 

Table of Contents

1     Introduction   1

1.1            Project Background   1