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  25

7.            NON-COMPLIANCE, COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTION  26

8.            CONCLUSIONS  27


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 Licences, 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  14

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

Table 3.7       Summary of Water Quality Exceedance (Laboratory Analysis) 17

Table 4.1       24 Hours Water Quality Monitoring Equipment 20

Table 4.2       24-hr Water Quality Monitoring Parameters  21

Table 4.3       Location of Water Quality Monitoring Station  21

Table 4.4       Summary of Water Quality Exceedance (24-hr Monitoring) 22

Table 5.1       Compliance with EP Conditions in the Reporting Month  23

Table 5.2       Waste Quantities of Dredging Works  24

Table 7.1       Environmental Complaints Log  26

Table 7.2       Cumulative Statistics on Complaints  26

Table 7.3       Cumulative Statistics on Successful Prosecutions  26

 

FIGURES:

Figure 1           Project General Layout

Figure 2           Dredging Work Location during the Reporting Period

Figure 3           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

Appendix M

Weather Conditions and Red Tide Occurrence for the Reporting Month

Proposal for Temporary Suspension of Water Quality Monitoring

           


EXECUTIVE SUMMARY

 

i.      This is the Twenty-eighth Monthly Environmental Monitoring Audit (EM&A) Monthly Report – August 2016 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 July 2016 to 22 August 2016.

 

ii.    Construction Activities for the Reporting Period

During this reporting period, the principal work activities included:

·         Site Trial on Dredging works without Silt Curtain Deployment on Portion A (Zone 2C2 and Zone  4A) and Portion E (Zone 13B).

 

iii.   Water Quality Monitoring

Routine impact water quality monitoring at 22 designated monitoring stations namely C1, C2, C3, G1, G2, G3, G4, G5, G6, SR1, SR2, SR3, SR4, SR5, SR6, SR7, SR8, SR9, SR10, SR11, SR12, SR13 were conducted during the reporting period. Exceedances of DO (S&M), DO (B), TIN (in-situ & lab) 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

SR1

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

SR2

Action

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

2

3

3

3

0

0

0

0

0

0

-

-

5

6

SR3

Action

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

1

2

2

2

0

0

0

0

0

0

-

-

3

4

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

5

5

4

4

0

0

-

-

-

-

9

9

18

18

SR6

Action

0

0

1

2

0

0

-

-

-

-

-

-

1

2

Limit

2

2

2

0

0

0

-

-

-

-

-

-

4

2

SR7

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

4

4

3

1

0

0

-

-

-

-

-

-

7

5

SR8

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

1

1

1

0

0

0

-

-

-

-

-

-

2

1

SR9

Action

0

0

1

1

0

0

-

-

-

-

2

2

3

3

Limit

3

3

2

2

0

0

-

-

-

-

5

5

10

10

SR10

Action

0

0

0

0

0

0

-

-

-

-

2

1

2

1

Limit

1

0

0

0

0

0

-

-

-

-

1

1

2

1

SR11

Action

0

0

0

0

0

0

-

-

-

-

2

1

2

1

Limit

1

1

0

0

0

0

-

-

-

-

1

1

2

2

SR12

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

SR13

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

0

2

0

0

0

0

-

-

-

-

-

-

0

2

Total

Action

0

0

2

3

0

0

0

0

0

0

6

4

15

Limit

20

23

17

12

0

0

0

0

0

0

16

16

104

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

SR1

Action

0

0

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

-

-

0

0

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

0

0

0

0

0

0

0

0

0

0

0

0

-

-

0

0

SR5

Action

0

0

-

-

-

-

-

-

-

-

-

-

0

0

0

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

9

9

9

9

SR6

Action

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

-