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.67) – February 2019

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

14 March 2019

TCS00694/13/600/R1993v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

8 March 2019

First Submission

2

14 March 2019

Amended according to the IEC’s comments on 11 and 13 March 2019

 

 

 

 

 

 


 

 

 

executive summary

ES01            This is the 67th monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 28 February 2019 (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

11 Scheduled & 0 extra

WM2A(a) & WM2A-Cx

11 Scheduled & 1 extra

WM2B & WM2B-C

11 Scheduled & 0 extra (*)

WM3x &WM3-C

11 Scheduled & 0 extra

WM4, WM4-CA &WM4-CB

11 Scheduled & 1 extra

Ecology

Woodland compensation

i)      General Health condition of planted species

ii)     Survival of planted species

9 Quadrats and transect

1

Joint Site Inspection / Audit

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

Contract 2

4

Contract 3

4

Contract 4

5

Contract 6

4

Contract 7

5

Contract SS C505 (#)

4

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

             (*) In 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, no exceedance of 1-hour and 24-hour TSP was recorded. Furthermore, 4 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

0

0

--

--

--

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

--

Water Quality

DO

0

0

0

--

--

--

Turbidity

0

2

2

Refer to ES.05

The Contractor should fully implement water quality mitigation measure.

SS

0

2

2

ES05            A total of Four (4) Limit Level exceedances were recorded during water quality monitoring. The investigation report for exceedance recorded at WM2A(a) on 8 February 2019 revealed that exceedance was not related to the work under the project.  The investigation report for exceedance recorded at WM4 on 25 February 2019 is still underway by ET and the investigation result will be presented in next Monthly EM&A Report.

Environmental Complaint

ES06            In this Reporting Period, two (2) documented environmental complaints were received for Contract 3 regarding the construction noise and site cleanliness issues.  The complaint details and status of investigation are summarized below.

(a)    A public complaint was received by EPD on 28 January 2019 about noise disturbance generated by the construction works at 8pm at Kau Lung Hang claiming from Chun Wo’s construction site.  The Contractor confirmed that there was no construction activity after 18:00 on 28 January 2019.  Investigation was conducted by ET and the IR revealed that the complaint was not valid to Contract 3.

(b)   A public complaint was received by 1823 on 21 Feb 2019 about cleanliness of Chun Wo construction site near Yuen Leng concerning on water spraying around the site area causing mud and muddy water rush out from the site to public road. Investigation 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 1, 8, 15 and 21 February 2019.  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 8, 14, 20 and 28 February 2019.  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 1, 8, 15, 22 and 25 February 2019.  No non-compliance was noted.  

ES12            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 8, 14, 21 and 28 February 2019.  No non-compliance was noted during the site inspection. 

ES13            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 1, 8, 15, 22 and 26 February 2019.  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 4, 13, 20 and 27 February 2019 in which IEC joined the site inspection on 20 February 2019.  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 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.

ES17            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.

ES18            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

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  7

2.5            Summary of Environmental Submissions  10

3     Summary of Impact Monitoring Requirements  14

3.1            General  14

3.2            Monitoring Parameters  14

3.3            Monitoring Locations  14

3.4            Monitoring Frequency and Period   16

3.5            Monitoring Equipment  17

3.6            Monitoring Methodology   19

3.7            Equipment Calibration   21

3.8            Derivation of Action/Limit (A/L) Levels  21

3.9            Data Management and Data QA/QC Control  22

4     Air Quality Monitoring   23

4.1            General  23

4.2            Air Quality Monitoring Results  23

5     Construction Noise Monitoring   26

5.1            General  26

5.2            Noise Monitoring Results  26

6     Water Quality Monitoring   27

6.1            General  27

6.2            Results of Water Quality Monitoring   27

7     Ecology Monitoring   30

7.1            General  30

8     Waste Management   31

8.1            General Waste Management  31

8.2            Records of Waste Quantities  31

9     Site Inspection   32

9.1