TABLE OF CONTENTS

 

EXECUTIVE SUMMARY                                                                                                                         

1.           INTRODUCTION   5

2.           BASIC PROJECT INFORMATION   7

3.           EM&A REQUIREMENTS – ROUTINE IMPACT MONITORING   11

4.           EM&A REQUIREMENTS – 24-HR WATER QUALITY MONITORING   16

5.           ENVIRONMENTAL SITE INSPECTION AND AUDIT   19

6.           COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTION   26

7.           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 Period – 24-hr Monitoring                         

Table 2‑1     Key Personnel Contact of the Contract 7

Table 2‑2     Detail Dredging Quantity  8

Table 3‑1     Monitoring Parameters and Frequency  11

Table 3‑2     Water Quality Monitoring Parameters  12

Table 3‑3     Summary of Water Quality Exceedance (In-situ Measurement) 13

Table 3‑4     Summary of Water Quality Exceedance (Laboratory Analysis) 14

Table 4‑1     24-hr Water Quality Monitoring Parameters  16

Table 4‑2     Summary of Water Quality Exceedance (24-hr Monitoring) 17

Table 5‑1     Waste Quantities of Dredging Works  20

Table 5‑2     Comparison of Quarterly Mean to Baseline Mean  22

Table 5‑3     Summary of Statistical Analysis  25

Table 6‑1     Environmental Complaints Log  26

Table 6‑2     Cumulative Statistics on Complaints  26

Table 6‑3     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

Graphical Presentation – Routine Impact Monitoring Results

Appendix E

Graphical Presentation – 24-hr Monitoring Results

Appendix F

Environmental Mitigation Implementation Schedule

Appendix G

Waste Generation in Reporting Period

Appendix H

Quarterly Assessment of Construction Impacts

           


EXECUTIVE SUMMARY

 

i.      This is the Eighth Quarterly Environmental Monitoring Audit (EM&A) Report – February 2016 – April 2016 for Contract No. CV/2013/04 – Dredging Works in Kwai Tsing and its Approach Channel (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 January 2016 to 22 April 2016.

 

i.      Construction Activities for the Reporting Period

During this reporting period, the principal work activities included:

 

February 2016

March 2016

April 2016

· Dredging at Portion A / Zone 1B, Zone 2A1, 2B1, 2B2, Zone 2C2, Zone 3A, 3B and Zone 4B in EP

· Dredging at Portion B / Zone 6A, 6B and Zone 8 in EP

· Dredging at Portion C / Zone 9, Zone 10, Zone 11 and Zone 12 in EP

 

· Dredging at Portion A / Zone 1A, 1B, Zone 2A1, 2A2, Zone 2B2, Zone 2C1, 2C2, Zone 3A, Zone 4A and 4B in EP

· Dredging at Portion B / Zone 5A, 5B, Zone 6A, 6C, 6D, Zone 7 and Zone 8 in EP

· Dredging at Portion C / Zone 9 and Zone 10 in EP

 

· Dredging at Portion A / Zone 1A, 1B, Zone 2B1, Zone 2C1, Zone 3A, 3B and Zone 4A in EP

· Dredging at Portion B / Zone 5B, Zone 6C, 6D and Zone 8 in EP

· Dredging at Portion C / Zone 10 in EP

 

 

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 and SR13 were conducted during the reporting period. Exceedances of DO (B), TIN (in-situ & lab) and Suspended Solids 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

4

5

0

0

-

-

4

5

Limit

0

0

0

0

0

0

3

2

0

0

-

-

3

2

SR3

Action

0

0

0

0

0

0

3

2

0

0

-

-

3

2

Limit

0

0

0

0

0

0

3

5

0

0

-

-

3

5

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

-

-

-

-

3

2

3

2

Limit

0

0

0

0

0

0

-

-

-

-

14

16

14

16

SR6

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

0

0

0

0

0

0

-

-

-

-

-

-

0

0

SR7

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

0

0

0

0

0

0

-

-

-

-

-

-

0

0

SR8

Action

0

0

0

0

0

0

-

-

-

-

-

-

0

0

Limit

0

0

0

0

0

0

-

-

-

-

-

-

0

0

SR9

Action

0

0

0

0

0

0

-

-

-

-

7

7

7

7

Limit

0

0

0

0

0

0

-

-

-

-

16

15

16

15

SR10

Action

0

0

0

0

0

0

-

-

-

-

8

5

8

5

Limit

0

0

0

0

0

0

-

-

-

-

5

5

5

5

SR11

Action

0

0

0

0

0

0

-

-

-

-

5

5

5

5

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

0

0

0

0

0

-

-

0

0

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

7

7

0

0

23

20

57

Limit

0

0

0

0

0

0

6

7

0

0

40

41

94

 

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

1

1

0

0

0

0

0

0

0

0

0

0

-

-

1

1

SR2

Action

0

0

-

-

-

-

4

5

0

0

-

-

-

-

4

5

Limit

0

0

-

-

-

-

3

2

0

0

-

-

-

-

3

2

SR3

Action

0

0

-

-

-

-

3

2

0

0

-

-

-

-

3

2

Limit

0

0

-

-

-

-

3

5

0

0

-

-

-

-

3

5

SR4

Action

0

0

0

0

0

0

0

0

0

0

0

0

-

-

0

0

Limit

0

3

0

0

0

0

0

0

0

0

0

0

-

-

0

3

SR5

Action

0

0

-

-

-

-

-

-

-

-

-

-

3

2

3

2

Limit

0

0

-

-

-

-

-

-

-

-

-

-

14

16

14

16

SR6

Action

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

SR7

Action

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

SR8

Action

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

SR9

Action

1

0

-

-

-

-

-

-

-

-

-

-

7

7

8

7

Limit

0

0

-

-

-

-

-

-

-

-

-

-

16

15

16

15

SR10

Action

0

0

-

-

-

-

-

-

-

-

-

-

8

5

8