Cover page

Verification letter

TABLE OF CONTENTS

 

1.            INTRODUCTION  5

2.            BASIC PROJECT INFORMATION  7

3.            ROUTINE IMPACT WATER QUALITY MONITORING   11

4.            24-HR WATER QUALITY MONITORING   19

5.            ENVIRONMENTAL SITE INSPECTION AND AUDIT  23

6.            EXCEEDANCE OF THE ENVIRONMENTAL PARAMETERS  24

7.            NON-COMPLIANCE, COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTION  25

8.            CONCLUSIONS  26


TABLES:

Table I          Summary of Water Quality Exceedances – Routine Impact Monitoring (In-situ)                              

Table II          Summary of Water Quality Exceedances – Routine Impact Monitoring (Laboratory Analysis)                

Table III         Summary of the Exceedances Recorded in Reporting Month – 24-hr Monitoring                        

Table 2.1      Key Personnel Contact of the Contract 7

Table 2.2      Detailed Dredging Quantity  8

Table 2.3      Status of Environmental Licenses, Notification and Permits  9

Table 3.1      Laboratory Measurement/Analysis Methods and Reporting Limits  11

Table 3.2      Water Quality Monitoring and Sampling Equipment 12

Table 3.3      Monitoring Parameters and Frequency  13

Table 3.4    Water Quality Monitoring Parameters  14

Table 3.5      Locations of Water Quality Monitoring Stations  15

Table 3.6      Summary of Water Quality Exceedance (In-situ Measurement) 16

Table 3.7      Summary of Water Quality Exceedance (Laboratory Analysis) 16

Table 4.1      24 Hours Water Quality Monitoring Equipment 19

Table 4.2      24-hr Water Quality Monitoring Parameters  20

Table 4.3      Location of Water Quality Monitoring Station  20

Table 4.4      Summary of Water Quality Exceedance (24-hr Monitoring) 21

Table 5.1     Compliance with EP Conditions in the Reporting Month  22

Table 5.2      Waste Quantities of Dredging Works  23

Table 7.1      Environmental Complaints Log   25

Table 7.2      Cumulative Statistics on Complaints  25

Table 7.3      Cumulative Statistics on Successful Prosecutions  25

 

FIGURES:

Figure 1           Project General Layout

Figure 2           Locations of Water Quality Monitoring Stations

 

APPENDICES:

Appendix A

Project Organization Chart

Appendix B

Construction Programme

Appendix C

Action and Limit Levels

Appendix D

Copies of Calibration Certificates

Appendix E

Schedule of Water Quality Monitoring

Appendix F

Water Quality Monitoring Results and Graphical Presentation – Routine Impact Monitoring

Appendix G

Water Quality Monitoring Results and Graphical Presentation – 24-hr Monitoring

Appendix H

Event and Action Plans

Appendix I

Details of Notification of Exceedances

Appendix J

Environmental Mitigation Implementation Schedule

Appendix K

Waste Generation in Reporting Period

Appendix L

Weather Conditions for the Reporting Month


EXECUTIVE SUMMARY

 

i.      This is the Forty-third Monthly Environmental Monitoring Audit (EM&A) Monthly Report – November 2017 for Contract No. CV/2013/04 – Dredging Works in Kwai Tsing and its Approach Channel (Agreement No. CE63/2008 – Providing Sufficient Water Depth for Kwai Tsing Container Basin and its Approach Channel). The dredging works commenced on 23 April 2014. This report presents the environmental monitoring and audit works conducted from 23 October 2017 to 22 November 2017.

 

ii.    Construction Activities for the Reporting Period

During this reporting period, the principal work activities included:

·         Preparation Works of Dredging at Portion A / Zone1A and 2B2 in EP

·         Dredging at Portion A / Zone 1A and  2B2 in EP

Note:  According to the Contractor, all marine works under the construction phase of this contract were completed on 21 November 2017. 

 

iii.   Water Quality Monitoring

Routine impact water quality monitoring at 9 designated monitoring stations namely C1A, C2A, G2, SR2, SR3, SR4, SR5, SR12, SR13 were conducted during the reporting period. Exceedances of Turbidity, TIN (in-situ & lab) and Suspended Solid were recorded at various monitoring stations, detail of exceedance are summarized in Table I and II. However, investigation indicated these exceedances were not related to the Project works.

 

Table I        Summary of Water Quality Exceedances – Routine Impact Monitoring (In-situ)

Station

Exceedance Level

DO (S&M)

DO (B)

Turbidity

NH3-N

UIA

TIN

Total

 

 

E

F

E

F

E

F

E

F

E

F

E

F

E

F

SR2

Action

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

0

0

0

0

0

0

0

0

0

0

-

-

0

0

SR3

Action

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

0

0

0

0

0

0

0

0

0

0

-

-

0

0

SR4

Action

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

0

0

0

0

0

0

0

0

0

0

-

-

0

0

SR5

Action

0

0

0

0

0

0

-

-

-

-

0

0

0

0

Limit

0

0

0

0

0

0

-

-

-

-

5

5

5

5

SR12

Action

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

0

0

0

0

0

1

0

0

0

0

-

-

0

1

SR13

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Total

Action

0

0

0

0

0

0

0

0

0

0

0

0

0

Limit

0

0

0

0

0

1

0

0

0

0

5

5

11

Table II       Summary of Water Quality Exceedances – Routine Impact Monitoring (Laboratory Analysis)

Station

Exceedance Level

Suspended Solids

BOD5

E. coli

NH3-N

UIA

Synthetic Detergent

 

TIN

Total

 

 

E

F

E

F

E

F

E

F

E

F

E

F

E

F

E

F

SR2

Action

0

0

-

-

-

-

0

0

0

0

-

-

-

-

0

0

Limit

0

0

-

-

-

-

0

0

0

0

-

-

-

-

0

0

SR3

Action

0

0

-

-

-

-

0

0

0

0

-

-

-

-

0

0

Limit

0

0

-

-

-

-

0

0

0

0

-

-

-

-

0

0

SR4

Action

0

0

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

3

5

0

0

0

0

0

0

0

0

0

0

-

-

3

5

SR5

Action

0

1

-

-

-

-

-

-

-

-

-

-

0

0

0

1

Limit

0

0

-

-

-

-

-

-

-

-

-

-

5

5

5

5

SR12

Action

0

0

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

6

5

0

0

0

0

0

0

0

0

0

0

-

-

6

5

SR13

Action

1

1

-

-

-

-

-

-

0

0

-

-

-

-

1

1

Limit

0

0

-

-

-

-

-

-

0

0

-

-

-

-

0

0

Total

Action

1

2

0

0

0

0

0

0

0

0

0

0

0

0

3

Limit

9

10

0

0

0

0

0

0

0

0

0

0

5

5

29

 

Among the 9 monitoring stations, supplementary 24-hr water quality monitoring was also conducted at 4 of the stations, which are SR4, SR5, SR12 and SR13. No exceedance was recorded in the reporting month. Number of exceedances recorded in the reporting month at each impact station is summarized in Table III.


Table III      Summary of the Exceedances Recorded in Reporting Month – 24-hr Monitoring

Station

Exceedance Level

Turbidity

DO

NH3-N

Total

SR4

Action

0

0

0

0

Limit

0

0

0

0

SR5

Action

0

0

- 

0

Limit

0

0

- 

0

SR12

Action

0

0

0

0

Limit

0

0

0

0

SR13

Action

0

0

- 

0

Limit

0

0

- 

0

Total

Action

0

0

0

0

Limit

0