Contents

                        Executive summary                                                             

1                      Introduction                                                                          

1.1                   Purpose of the Report                                                     

2                      Environmental Status                                                      

2.1                   Project Area                                                                         

2.2                   Environmental Sensitive Receivers                            

2.3                   Major Construction Activities                                     

2.4                   Monitoring Schedule of The Reporting Month    

2.5                   Status of Environmental Approval Documents

2.6                   Community Liaison Group Meeting                               

2.7                   Summary of Non-Compliance With The Environmental Quality Performance Limits                                                                                           

2.8                   Summary of Environmental Complaints                  

2.9                   Summary of Environmental Summons                      

3                      Environmental Issues and Actions                             

3.1                   Previous Environmental Deficiencies and Follow-up Actions       

3.2                   Description of Actions Taken in Event of Non-Compliance and Deficiency Reporting                                                                                 

3.3                   Implementation Status on Environmental Protection Requirements

4                      Environmental Monitoring                                             

4.1                   Air and Noise                                                                           

4.2                   Water Quality                                                                        

4.3                   POPs Monitoring                                                                   

4.4                   Waste Management                                                             

4.5                   Cultural Heritage                                                              

4.6                   Landscape and Visual                                                        

4.7                   Land Contamination, Hazard to Life and Fuel Spill Risk 

4.8                   Ecology                                                                                    

4.9                   EM&A Manual                                                                          

4.10                 Baseline Water Quality Monitoring                           

5                      Future Key Issues                                                                 

5.1                   Key Issues for the Next Month                                     

5.2                   Impact Prediction for the Next Month                     

5.3                   Works and Monitoring Schedule for the Next Month    

 


LIST OF TABLES

Table 2.1        Summary of Works Undertaken During the Reporting Period

Table 2.2        Cumulative Quantity of Excavated Marine Sediments

Table 2.3        Summary of Environmental Licensing, Notification and Permit Status

Table 2.4        Summary of Exceedances of Action and Limit Levels Recorded during the Reporting Period

 

LIST OF ANNEXES

Annex A      Project Location

Annex B      Water Quality and Ecological Sensitive Receivers

Annex C     Water Quality Monitoring Schedule for the Reporting Period

Annex D     Cumulative Complaints Statistics

Annex E      Implementation Programme of Mitigation Measures

Annex F      QA/QC Results for Laboratory Testing of Suspended Solids

Annex G     Impact Water Quality Monitoring Results

Annex H      Monitoring Results and QA/QC Reports of Laboratory Testing for POPs

Annex I       Dolphin Sighting Records

 


EXECUTIVE SUMMARY

The construction works for the Permanent Aviation Fuel Facility resumed on 9 July 2007.  This thirty-seventh monthly Environmental Monitoring and Audit (EM&A) report presents the EM&A work carried out during the period from 1 November to 30 November 2009 in accordance with the EM&A Manual.

Breaches of all Action and Limit Levels

Water quality monitoring during dredging activities recorded no exceedance of Action or Limit Levels for bottom Dissolved Oxygen (DO).  Exceedances of Depth-averaged DO were recorded on 13, 14, 15, 17, 21 and 23 November and of Depth-averaged Suspended Solids on 15, 17, 18 and 19 November.  There were no exceedances of Limit levels for Depth-averaged Turbidity during the reporting period but on 18 November there were four exceedances of Action Levels for Depth-averaged Turbidity.  Following review of data in accordance with the procedures specified in the EM&A Manual, all these exceedances were considered to be due to natural fluctuation rather than the Project Works.

Complaint Log

No environmental complaints were received during the reporting period.

Notifications of any Summons and Successful Prosecutions

No environmental summons or prosecutions were received in this reporting period.

Reporting Changes

There were no reporting changes in the reporting period. 

Future Key Issues

·         Dust release and suppression;

·         Backfilling of rock armour over the pipelines;

·         Dredging operation for the repair of pipeline; and

·         Water quality monitoring and dolphin monitoring during the dredging activities.

 


1                                            Introduction

Leighton Contractors (Asia) Limited (LCAL) has appointed ERM-Hong Kong, Limited (ERM) as the Environmental Team (ET) to implement the Environmental Monitoring and Audit (EM&A) programme for the Permanent Aviation Fuel Facility (the Project) during construction works. 

The construction works for PAFF commenced in November 2005 based upon the previous EIA (EIAO Register Number AEIAR-062-2002) conducted and the Environmental Permit EP-139/2002 granted on the 28th August 2002.  Due to minor changes to the detailed layout of the site and the site boundary, application for Variation to the Environmental Permit (VEP) (VEP-133/2004) was submitted to the Director of Environmental Protection (DEP) for approval.  The variation to the EP (EP-139/2002/A) was granted by the EPD in February 2004.

The decision by the EPD to grant the above Environmental Permit was, however, subject to a Judicial Review.  The Judicial Review sided in the favour of the DEP, as did the subsequent Judgement from the Court of Appeal from the High Court for Judicial Review in March 2005.  However, the DEP’s decision to grant the EP was quashed by the Judgement of the Court of Final Appeal of July 2006.

The construction works were stopped following the Judgement of the Court of Final Appeal of July 2006.  As such, in order to continue with the construction of the project, the project went through the statutory procedures under the EIAO again with a new design in order to obtain an environmental permit.  The revised EIA was submitted in 2007 and the environmental permit (EP-262/2007) was granted in May 2007.  EP-262/2007 has been amended to EP-262/2007/A and issued by the EPD on 30 November 2007.  A further Variation to the Environmental Permit was approved to allow dredging works to continue until March 2008.  As such, EP-262/2007/A has been amended to EP-262/2007/B and was issued by the EPD on 27 February 2008.

The construction works and EM&A requirements were resumed on 9 July 2007 following the latest requirements of the EP-262/2007/B and EM&A Manual.  Details regarding the EM&A requirements and changes should refer to the updated EM&A Manual.  For the marine works, all piling activities were completed before the previous suspension of construction works in 2006.

1.1                                      Purpose of the Report

This is the thirty-seventh EM&A Report which summarizes the monitoring results and audit findings for the EM&A programme during the reporting period from 1 November to 30 November 2009.

 

2                                            Environmental Status

2.1                                      Project Area

The project area is in Area 38 of Tuen Mun and the pipelines are located in Urmston Road between Tuen Mun Area 38 and Sha Chau.  The site is illustrated in Annex A.

2.2                                      Environmental Sensitive Receivers

No air and noise sensitive receivers were identified close to the project area.  However, water sensitive receivers and ecological sensitive receivers were identified in the EIA study, and are shown in Annex B.

2.3                                      Major Construction Activities

A summary of the major works undertaken in this reporting period is shown in Table 2.1.  Initial marine dredging operations were completed on 23 January 2009 but due to pipeline repairs, dredging works were resumed on 13 November 2009.  Table 2.2 presents the cumulative quantity of excavated materials from September 2008 up to 30 November 2009.  Daily and cumulative dredging production rates are illustrated in Figure 2.1.

Table 2.1        Summary of Works Undertaken During the Reporting Period

Area

Works undertaken

Tuen Mun Area 38

·          Tank Farm, Roof Truss and Bund Wall Construction

·          Permanent Drainage Construction

·          Operational & Fire Services Buildings Construction

·          Jetty Works (Non-piling)

·          Pre-Commission and Commissioning Activities for Phase 1A (the first four tanks)

Submarine Pipeline Route

·          Riser connections at Sha Chau

·          Backfilling and placing of rock armour over the pipelines

·          Dredging operations

Table 2.2        Cumulative Quantity of Excavated Marine Sediments

Type of Excavated Materials

Cumulative Bulk Volume (m3)

From 17 December 2007 to 31 March 2008

Contaminated Mud

105,974

Uncontaminated Mud

97,815

 

From 1 September 2008 to 23 January 2009

Contaminated Mud

0

Uncontaminated Mud

149,147

 

 

From 13 November 2009 to 30 November 2009

Contaminated Mud

4,944

Uncontaminated Mud

9,664

2.4                                      Monitoring Schedule of The Reporting Month

Daily water quality monitoring during dredging activities commenced on 13 November 2009.  The monitoring schedule for November 2009 is presented in Annex C. 

2.5                                      Status of Environmental Approval Documents

A summary of the relevant permits, licences, and/or notifications on environmental protection for this Project since July 2007 is presented in Table 2.3. 

Table 2.3        Summary of Environmental Licensing, Notification and Permit Status

Permit/ Licenses/ Notification

Reference

Validity Period

Remarks

Environmental Permit

EP-262/2007/B

Throughout Project

Issued on 27 February 2008 (EP-262/2007/A on 30 November 2007, EP-262/2007 issued on 31 May 2007, EP-139/2002 originally granted on 28 August 2002 and EP-139/2002/A granted on 24 February 2004 were superseded)

 

Chemical Waste Producer Registration

 

WPN 5111-421-L2174-25

Throughout Project

Issued on 10 November 2005

Notification of Construction Works under Air Pollution Control (Construction Dust) Regulation

 

H2104/U1D/5542/DG/DH/PL

 

Throughout Project

Notification on 6 July 2007

Construction Noise Permit

GW-RW0676-07

21 December 2007 to 19 June 2008

 

For land-based works including air compressors, breakers, excavators, wheeled loaders, mobile cranes, concrete lorry mixers, hand-held pokers, bar benders/cutters, wood saws, grinders, submarine water pump, lorries with crane, dump trucks, rollers, ventilation fans and generators

 

GW-RW0677-07

21 December 2007 to 29 February 2008

For marine dredging operation including grab dredger, tug boat, split hopper barge and motor sampan

 

GW-RW0678-07

21 December 2007 to 18 June 2008

 

 

For marine jetty works including concrete pump derrick barges, hand-held grinders, generators, air compressors, boring machines, water pumps, tug boat, grout mixers and grout pumps

 

GW-RW0094-08

1 March to 31 March 2008

For marine dredging operation including grab dredger, tug boat, split hopper barge and motor sampan

 

GW-RW0312-08

04 July 2008 to 22 December 2008

 

 

For marine jetty works including concrete pump derrick barges, hand-held grinders, generators, air compressors, boring machines, water pumps, tug boat, grout mixers and grout pumps

 

GW-RW0313-08

04 July 2008 to 19 December 2008

 

For land-based works including air compressors, breakers, excavators, wheeled loaders, mobile cranes, concrete lorry mixers, hand-held pokers, bar benders/cutters, wood saws, grinders, submarine water pump, lorries with crane, dump trucks, rollers, ventilation fans and generators

 

GW-RW0373-08

1 August 2008 to 20 January 2009

For land-based works including air compressors, breakers, excavators, wheeled loaders, mobile cranes, concrete lorry mixers, hand-held pokers, bar benders/cutters, wood saws, grinders, submarine water pump, lorries with crane, dump trucks, rollers, ventilation fans, generators, stirrer, jet chisel, water jet machine and dehumidifier

 

 

GW-RW0368-08

1 September to 30 November 2008

For marine dredging operation including grab dredger, tug boat, split hopper barge and motor sampan

 

GW-RW0054-09

16 February 2009 to 5 August 2009

 

For land-based and marine works including passenger launch, winch, welding machine, grinder, generator, power pack, tug boat, crane, air compressor, roller, hoist and derrick barge

 

GW-RW0261-09

3 July 2009 to 3 November 2009

 

For land-based and marine works including derrick barge, grinder, crane, tug boat, drill, welding machine, hopper barge, motor sampan, air compressor

 

GW-RW0299-09

21 July 2009 to 20 January 2010

 

For land-based works including air compressors, breakers, excavators, wheeled loaders, mobile cranes, concrete lorry mixers, hand-held pokers, bar benders/cutters, wood saws, grinders, submarine water pump, lorries with crane, dump trucks, rollers, ventilation fans, generators, stirrer, jet chisel, water jet machine and dehumidifier etc

 

 

GW-RW0459-09

26 October 2009 to 28 February 2010

For marine dredging operation including air compressors, derrick barge, tug boat, mobile crane, hand-held grinder, generator, hand-held drill, winch, welding machine, motor sampan, grab dredger hopper barge etc

 

Marine Dumping Permit

EP/MD/08-064

13 December 2007 to 29 February 2008

 

For Type 1 – Open Sea Disposal

EP/MD/08-065

13 December 2007 to 12 January 2008

 

For Type 1d & Type 2 marine disposal

EP/MD/08-071

13 January 2008 to 12 February 2008

 

For Type 1d & Type 2 marine disposal

EP/MD/08-090

3 March to 31 March 2008

 

For Type 1d & Type 2 marine disposal

EP/MD/08-091

3 March to 31 March 2008

 

For Type 1 – Open Sea Disposal

EP/MD/09-018

1 September to 30 September 2008

 

For Type 1d & Type 2 marine disposal

EP/MD/09-032

1 October to 31 October 2008

For Type 1d & Type 2 marine disposal

 

EP/MD/09-017

1 September to 30 November 2008

 

For Type 1 – Open Sea Disposal

EP/MD/09-039

1 December 2008 to 31 January 2009

For Type 1 – Open Sea Disposal

EP/MD/10-041

11 November 2009 to 31 December 2009

For Type 1 – Open Sea Disposal

EP/MD/10-042

11 November 2009 to 10 December 2009

For Type 1 – Open Sea Disposal (Dedicated Site) & Type 2 – Confined Marine Disposal

Wastewater Discharge License

EP760/421/011399/l

15 March 2006 to 31 March 2011

Issued on 15 March 2006

2.6                                      Community Liaison Group Meeting

According to the EP requirements, a Community Liaison Group (CLG) was established within three months of commencement of construction of the Project.  The major duty of the CLG is to advise on and monitor the proper design, construction and operation of the Project.  The CLG comprises representatives from Airport Authority, members of Tuen Mun community and academics.  During the reporting period, no meetings were organised by the CLG.  The details of the CLG (including Membership and its Terms of Reference) and the minutes of previous meetings can be found on the Project website (http://www.paffhk.com).

2.7                                      Summary of Non-Compliance With The Environmental Quality Performance Limits

Water quality monitoring during dredging activities recorded no exceedance of Action or Limit Levels for DO Bottom.  Exceedances of Depth-averaged DO were recorded on 13, 14, 15, 17, 21 and 23 November and of Depth-averaged Suspended Solids on 13, 15, 17, 18, 19 and 21 November.  There were no exceedances of Limit levels for Depth-averaged Turbidity during the reporting period but on 18 November there were four exceedances of Action Levels for Depth-averaged Turbidity.  A summary of the exceedances occurring during the reporting period is shown in Table 2.4 and a description of the actions taken following these non-compliances is discussed in Section 3.2.


 Table 2.4      Summary of Exceedances of Action and Limit Levels Recorded during the Reporting Period

Date

Parameter

Monitoring Stations

Mid-Ebb Tide

Mid-Flood Tide

13 Nov 2009

DO (Depth-averaged)

 

IMO1*, IMO3*, IMO4*

SS (Depth-averaged)

 

IMO4*

14 Nov 2009

DO (Depth-averaged)

IMO1, MPB1, MPB2

IMO1, IMO2, IMO3, IMO4, MPB1*, MPB2*, MP*

15 Nov 2009

DO (Depth-averaged)

MPB1, MPB2, MP

IMO1*, IMO2, IMO3, IMO4, MPB2

 

SS (Depth-averaged)

MP

IMO2*, IMO3, IMO4*

17 Nov 2009

DO (Depth-averaged)

MPB1

IMO1*, IMO2*, MP

 

SS (Depth-averaged)

MPB1*, MPB2, MP*

IMO1*, MPB1*, MPB2*, MP*

18 Nov 2009

Turbidity (Depth-averaged)

IMO5*, MPB2*

IMO5*, MPB2*

 

SS (Depth-averaged)

MPB1*, MPB2

MPB1*

19 Nov 2009

SS (Depth-averaged)

MPB2*

IMO1*, IMO6*, MPB2*

21 Nov 2009

DO (Depth-averaged)

IMO5*, IMO6*

IMO6

SS (Depth-averaged)

MPB1*

 

23 Nov 2009

DO (Depth-averaged)

 

IMO5*

*Note: Action Level but not Limit Level exceedance

 

As per the requirements of the EM&A Manual, incidents were notified to the Franchisee’s Site Representative, the Contractor and the Independent Environmental Checker upon identification of an exceedance.

2.8                                      Summary of Environmental Complaints

No environmental complaints were received during the reporting period.  A summary of environmental complaints since project commencement is presented in Annex D.

2.9                                      Summary of Environmental Summons

No summons was received in this reporting period.  A summary of legal proceeding since project commencement is presented in Annex D

 

3                                            Environmental Issues and Actions

3.1                                      Previous Environmental Deficiencies and Follow-up Actions

As no environmental complaints were received over the last reporting period, no follow-up actions were required.

Site inspections were carried out by the ET on 6, 12, 19 and 26 November 2009.  Overall, the site was in good orderly manner and no non-compliance was found.  Environmental deficiencies and follow-up actions/mitigation measures were identified during the inspections, as follows:

Air Quality

·            On 26 November, the air compressor near the Jetty area was found without a label or drip tray.  The air compressor was evidently not yet in operation, but the Contractor was advised to ensure it had the correct label and a drip tray before starting operation.

Noise

·            On 12 November, the CNP permit showing at the main site entrance showed an expiry date of 3 November 2009.  The Contractor was advised to put up the new permit that had been obtained.

Water Quality

·            On 6, 12 and 19 November, the sediment tanks near the middle, main entrance were left uncovered and a possible breeding ground for mosquitoes.  The Contractor was advised to cover the sediment tanks as soon as possible.

·            On 6 November, a pipe connection on the path leading from the main to the middle entrance was found to be leaking.  The Contractor was asked to fix the connection as soon as possible.

·            On 6 November, water was observed in the bunding around the generator in the Workshop area and on 19 November in the drip tray of the diesel drum near the Workshop area.  The Contractor was advised to clear this immediately.

·            On 12 November, a thin oil film was observed on the seawater by the jetty.  Water coming out of the drainage system appeared clean and it was concluded that the oil film was probably not resulting from the PAFF site.

·            On 19 November, dirty water was found behind the painting area by Tank 8.  The Contractor was advised to clear the water as soon as possible.

Waste/Chemical Management

·            On 6, 12 and 19 November, scattered pieces of debris were found around the Tank Farm areas, on 12 November a stockpile of debris and construction waste was found just inside the middle entrance to the site and on 19 November wire debris was found behind a lorry by Tank 10.  The Contractor was advised to collect all debris and dispose of it appropriately.

·            On 6 and 12 November, black plastic bags and hosepipes were found deposited in the chemical waster storage area by Tank 10.  The Contractor was advised to clear these to the appropriate place as soon as possible.

·            On 19 November, the Contractor was advised to check the set-up of the paint area near Tank 8 to ensure it was safe and there was no contamination of the surrounding area.  They were also advised to ensure that all empty paint cans were stored in the chemical waste facility.

·            On 26 November, the dredging barge was inspected and there were insufficient waste receptacles.  The Contractor was advised to ensure rubbish bins were provided on all levels of the barge and that they were of adequate capacity.

·            On 26 November, oil was identified in the drip tray around the generator aboard the grab dredger and there was an open plastic bucket of oil near the generator.  The Contractor was advised to clear the drip tray immediately and cover the plastic bucket.

General Housekeeping

·            On 26 November, the electric hazard label on the generator aboard the grab dredger was illegible.  The Contractor was advised to arrange for a new sign to be put in place.

The ET will keep track on the EM&A programme to ensure compliance of environmental requirements and the proper implementation of all necessary mitigation measures.

3.2                                      Description of Actions Taken in Event of Non-Compliance and Deficiency Reporting

Water quality monitoring during dredging activities recorded no exceedance of Action or Limit Levels for DO Bottom.  Exceedances of Depth-averaged DO were recorded on 13, 14, 15, 17, 21 and 23 November and of Depth-averaged Suspended Solids on 13, 15, 17, 18, 19 and 21 November.  There were no exceedances of Limit levels for Depth-averaged Turbidity during the reporting period but on 18 November there were four exceedances of Action Levels for Depth-averaged Turbidity.  A summary of the exceedances recorded during the reporting period is shown in Section 2.7, Table 2.4 and graphical representations of the results are presented in Annex G.  Descriptions of the actions taken following identification of non-compliance are discussed below.

Although dredging operations were undertaken during the reporting period, on examination of the results, it was concluded that all the exceedances described above were unlikely to be caused by the Project for the following reasons:

·         Exceedances were found at monitoring stations upstream and downstream of dredging vessels that were not in operation (e.g. exceedance of Action Level of depth-averaged DO on 13 November 2009 at IMO3 and IMO4).  The values were comparable to exceedances found at stations upstream and downstream of operational dredging vessels on the same day (eg exceedance of Action Level of depth-averaged DO on 13 November 2009 at IMO1).

·         Not all parameters showed same trend of exceedances (e.g. on 14 November there were exceedances of Depth-averaged DO at various stations, but there were no exceedances of Bottom DO, Depth-averaged Turbidity and Depth-averaged Suspended Solid (SS) results at the same stations at the same tide)

·         There have also been exceedances recorded from previous monitoring periods when dredging was not undertaken (e.g. 8 September 2008 with exceedances in DO values; 10 February 2008 with exceedances in Depth-averaged Turbidity and in SS).

As per the requirements of the EM&A Manual, incidents were notified to the Franchisee’s Site Representative, the Contractor and the Independent Environmental Checker upon identification of an exceedance.

3.3                                      Implementation Status on Environmental Protection Requirements

The implementation status of environmental mitigation measures and requirements as stated in the EIA Report, Environmental Permits and EM&A Manual during the reporting period is summarized in Annex E.

 

4                                            Environmental Monitoring

4.1                                      Air and Noise

Air and Noise monitoring is not required for the project.  

4.2                                      Water Quality

In accordance to the EM&A Manual, during dredging activities, water quality monitoring commenced on 13 November 2009.  QA/QC reports for Suspended Solids testing are presented in Annex F.  Monitoring data and graphical presentations of the results are included in Annex G. 

Results of the monitoring demonstrated that all measured Bottom dissolved oxygen (DO) levels at all Impact Stations were compliant with the Action and Limit Levels specified in the EM&A Manual.  Concentrations of Depth-averaged Turbidity were also compliant with Action and Limit levels with the exception of 18 November.  Exceedances for Depth-averaged DO and Suspended Solids were more frequent during the reporting period with exceedances in 13, 14, 15, 17, 21 and 23 November for Depth-averaged DO and in 13, 15, 17, 18, 19 and 21 November for Depth-averaged SS.  A review of the above exceedances concluded that they were not attributable to Project works and were likely due to natural variation (see Section 3.2 for further details).

4.3                                      POPs Monitoring

Biweekly monitoring of water samples was conducted for Persistent Organic Pollutants (POPs) analysis on 25 November.  Total PCBs, PAHs and DDTs were all below detection limits.    Monitoring results and QA/QC reports for the available POPs testing are presented in Annex H.  The remaining results will be presented in the next Monthly Report.

4.4                                      Waste Management

According to EP Condition 3.3, the Contractor’s revised Waste Management Plan (Revision 5) (WMP), which has been certified by the ET and IEC, was submitted to the EPD on 5 November 2008. 

4.5                                      Cultural Heritage

The Watching Brief Report, verified by the Independent Environmental Checker, was submitted to the EPD and AMO on 9 May 2008.

4.6                                      Landscape and Visual

According to the EIA report and EM&A Manual, mitigation measures and site inspection are required during the landscaping/planting works.  The berm/landscaping bund was habilitated by vegetation which was grown during the project suspension period. 

The weekly site inspections included general audits on landscape and visual issues to ensure that the site was in an orderly and acceptable manner.

4.7                                      Land Contamination, Hazard to Life and Fuel Spill Risk

According to the EIA report and EM&A Manual, mitigation measures and design phase audit are required to minimise the risk of fuel spill and hazards. In 2007, the Contractor submitted an updated design audit plan according to the EP requirements.  These were certified and verified by the ET and IEC respectively and submitted to the EPD on 7 November 2007.

Pursuant to Condition 3.5 of the EP, the Contractor submitted design drawings and supporting information according to the EP requirements.  The ET certified the documents and submitted to the IEC for verification on 24 and 25 November 2009.

Weekly site inspection covered the waste management aspects which included measures to prevent land contamination by chemical wastes.

4.8                                      Ecology

Dolphin Visual Monitoring

In accordance to EM&A Manual, dolphin monitoring was undertaken during dredging activities from when they started on 13 November 2009.

During the reporting period, a total of four dolphin sightings were recorded.  Since no dolphin sightings were recorded within the exclusion zone, no action was considered necessary according to the EM&A Manual.  The sighting locations and field records are presented in Annex I.

4.9                                      EM&A Manual

The EM&A Manual for the Project was updated by the ET to include the detailed arrangements of setting up a CLG, carrying out design audit, and monitoring of Persistent Organic Pollutants during the dredging phase of construction of the Project.  The revised EM&A Manual, which was verified by the IEC, was submitted to the EPD on 1 April 2009.

4.10                                  Baseline Water Quality Monitoring

The Final Baseline Monitoring Report was submitted to the EPD on 20 February 2008 and placed under the EIAO register.

 

5                                            Future Key Issues

5.1                                      Key Issues for the Next Month

Key issue to be considered in the next month will be:

·         dust release and suppression;

·         backfilling of rock armour over pipeline;

·         dredging operation for the repair of pipeline; and,

·         Water quality monitoring and dolphin monitoring during the dredging activities.

5.2                                      Impact Prediction for the Next Month

Provided that environmental mitigation measures including good on-site practises are properly implemented, it is not expected that unacceptable adverse impacts will arise.

Based on the water quality monitoring results recorded to date, it may be expected that further exceedances in Depth-averaged Dissolved Oxygen, Suspended Solids and possibly Turbidity may be recorded.  However, as with those recorded so far, it is not expected that such exceedances would be attributable to Project Works.

5.3                                      Works and Monitoring Schedule for the Next Month

Work programme for the next month includes:

·         backfilling and placing of rock armour works;

·         dredging operation for the repair of pipeline;

·         riser connections at Sha Chau;

·         jetty platform works (non-piling);

·         site works (construction works for tank farm, roof truss, drainages, bund wall, security wall and emergency vehicle access road etc); and,

·         pre-commission and commissioning activities for Phase 1A (the first four tanks). 

Weekly site inspections, water quality and dolphin monitoring will be undertaken in accordance with the EM&A Manual.