TABLE OF CONTENTS

 

1.            INTRODUCTION  Error! Bookmark not defined.

2.            BASIC PROJECT INFORMATION  Error! Bookmark not defined.

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  Error! Bookmark not defined.

7.            NON-COMPLIANCE, COMPLAINTS, NOTIFICATION OF SUMMONS AND PROSECUTION  Error! Bookmark not defined.

8.            CONCLUSIONS  Error! Bookmark not defined.


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 Error! Bookmark not defined.

Table 2.2       Detailed Dredging Quantity 

Table 2.3       Status of Environmental Licences, Notification and Permits 

Table 3.1       Laboratory Measurement/Analysis Methods and Reporting Limits 

Table 3.2       Water Quality Monitoring and Sampling Equipment

Table 3.3       Monitoring Parameters and Frequency 

Table 3.4       Water Quality Monitoring Parameters 

Table 3.5       Locations of Water Quality Monitoring Stations  Error! Bookmark not defined.

Table 3.6       Summary of Water Quality Exceedance (In-situ Measurement) Error! Bookmark not defined.

Table 3.7       Summary of Water Quality Exceedance (Laboratory Analysis) Error! Bookmark not defined.

Table 4.1       24 Hours Water Quality Monitoring Equipment

Table 4.2       24-hr Water Quality Monitoring Parameters 

Table 4.3       Location of Water Quality Monitoring Station 

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

Table 5.1       Compliance with EP Conditions in the Reporting Month 

Table 5.2       Waste Quantities of Dredging Works 

Table 7.1       Environmental Complaints Log 

Table 7.2       Cumulative Statistics on Complaints 

Table 7.3       Cumulative Statistics on Successful Prosecutions 

 

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

Weather Conditions and Red Tide Occurences for the Reporting Month

           


EXECUTIVE SUMMARY

 

i.        This is the Ninth Monthly Environmental Monitoring Audit (EM&A) Monthly Report – January 2015 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 December 2014 to 22 January 2015.

 

ii.      Construction Activities for the Reporting Period

During this reporting period, the principal work activities included:

  • Dredging at Portion A / Zone 1A, Zone 1B, Zone 3A, Zone 3B, Zone 4A and Zone 4B in EP

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

·         Dredging at Portion C / Zone 9 and 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, SR13 were conducted during the reporting period. Exceedances of Turbidity, Suspended Solids, NH3-N (lab) and 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

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

-

-

-

-

2

0

2

0

SR6

Action

0

0

0

0

0

1

-

-

-

-

-

-

0

1

Limit

0

0

0

0

1

1

-

-

-

-

-

-

1

1

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

1

2

-

-

-

-

-

-

1

2

Limit

0

0

0

0

0

0

-

-

-

-

-

-

0

0

SR9

Action

0

0

0

0

3

3

-

-

-

-

3

0

6

3

Limit

0

0

0

0

0

0

-

-

-

-

0

1

0

1

SR10

Action

0

0

0

0

0

0

-

-

-

-

4

2

4

2

Limit

0

0

0

0

0

0

-

-

-

-

0

1

0

1

SR11

Action

0

0

0

0

1

1

-

-

-

-

3

3

4

4

Limit

0

0

0

0

0

0

-

-

-

-

0

1

0

1

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

5

7

0

0

0

0

10

5

27

Limit

0

0

0

0

1

1

0

0

0

0

2

3

7

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

2

0

0

0

0

0

0

0

0

0

0

0

-

-

2

0

SR2

Action

0

0

-

-

-

-

0

0

0

0

-

-

-

-

0

0

Limit

0

0

-

-

-

-

0

0

0

0

-

-

-

-

0

0

SR3

Action

0

0

-

-

-

-

3

0

0

0

-

-

-

-

3

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

1

1

0

0

0

0

0

0

0

0

0

0

-

-

1

1

SR5

Action

0

0

-

-

-

-

-

-

-

-

-

-

1

0

1

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

0

0

0

0

SR6

Action

3

1

-

-

-

-

-

-

-

-

-

-

-

-

3

1

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

0

0

-

-

-

-

-

-

-

-

-

-

2

0

2

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

0

0

0

0

SR10

Action

0

0

-

-

-

-

-

-

-

-

-

-

2

0

2

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

0

0

0

0

SR11

Action

0

0

-

-

-

-

-

-

-

-

-

-

1

0

1

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

0

0

0

0

SR12

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

SR13

Action

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

Limit

0

0

-

-

-

-

-

-

-

-

-

-

-

-

0

0

Total

Action

3

1

0

0

0

0

3

0

0

0

0

0

6

0

13

Limit

4

2

0

0

0

0

0

0

0

0

0

0

0

0

6

 

Among the 22 monitoring stations, supplementary 24-hr water quality monitoring was also conducted at 7 of the stations, which are SR4, SR5, SR9, SR10, SR11, SR12 and SR13. Exceedances of DO and Turbidity were recorded at various monitoring stations, detail of exceedance are summarized in Table III. However, investigation indicated these exceedances were not related to the Project works.

 

 

 

 


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

3

- 

3

SR9

Action

0

181

- 

181

Limit

0

0

- 

0

SR10

Action

0

9

- 

9

Limit

0

0

- 

0

SR11

Action

61

207

- 

268

Limit

44

70

- 

114

SR12

Action

0

0

0

0

Limit

0

0

0

0

SR13

Action

0

0

- 

0

Limit

0

1

- 

1

Total

Action

61

397

0

458

Limit

44

74

0

118

 

iii.    Waste Management

There was marine sediment (Type 1 – Open Sea Disposal and Type 2 – Confined Marine Disposal) disposed to East Sha Chau Pit IVc or Va and South of Brothers CMP1 or CMP2. No inert or non-inert C&D material related to dredging works and a small amount of general refuse were disposed off site in the reporting month.

 

iv.    Non-Compliance, Complaints, Notifications of Summons and Successful Prosecutions

No complaint, notification of prosecutions or summons was received in the reporting period.

 

v.      Site Inspections and Audit

The Environmental Team conducted 5 site inspections in the reporting period. The Contractor is recommended to improve the conduit system by installing conduit to direct water into the sea. The Contractor is also reminded to make sure the dredger was tightly closed during transportation of dredging process.

 

According to Contractor, no archaeological deposit was found during reporting period.

 

vi.    Compliance with Specific EP conditions

Implementation of contractor’s mitigation for dredging work and the associated dredging records were checked. It was concluded that the dredging is conducted orderly in compliance with the EP requirements on site mitigation measures in general.

 

vii.  Construction Activities for the Coming Reporting Period

During the coming reporting period, the principal work activities include:

  • Dredging at Portion A / Zone 1A, Zone 1B, Zone 3A, Zone 3B, Zone 4A and Zone 4B in EP

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

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

Future Key Issues include:

  • Regular inspection on silt curtain deployment
  • Regular inspection on silt screen deployment
  • Implementation of EM&A Programme
  • Maintain dredging below allowable dredging rate in EP.
  • Cleaning of excess material from the decks and exposed fittings of barges and dredgers before the vessel is moved.

·         Barge loading shall be monitored to ensure material is not lost during transportation.

·         Conditions in dumping permit shall be followed strictly.