Contents
1.1 Purpose of the Report
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
4.1 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
5.1 Key Issues for the
Next One Month
5.2 Impact Prediction for
the Next One Month
5.3 Works and Monitoring
Schedule for the Next One Month
LIST OF TABLES
Table 2.1 Summary of Works Undertaken
During the Reporting Period
Table 2.2 Cumulative
Quantity of Excavated Marine Sediments up to 30 September 2008
Table 2.3 Summary
of Environmental Licensing, Notification and Permit Status
LIST OF ANNEXES
Annex B Water Quality
Monitoring Stations, Water Quality and Ecological Sensitive Receivers
Annex C Monitoring
Schedule for the Reporting Period and Next Month
Annex D Cumulative Complaints Statistics
Annex E Implementation Programme of Mitigation Measures
Annex F QA/QC Results of Laboratory Testing for
Suspended Solids
Annex G
Impact Water Quality Monitoring
Results
Annex H Monitoring Results and QA/QC Reports of
Laboratory Testing for POPs
EXECUTIVE
SUMMARY
The construction
works for the Permanent Aviation Fuel Facility resumed on 9 July 2007. This twenty-third
monthly Environmental Monitoring and Audit (EM&A) report presents the
EM&A work carried out during the period from 1 September to 30 September
2008 in accordance with the EM&A
Manual.
Breaches of all Action and Limit Levels
Exceedance of the Action Limit Levels
for Depth-averaged Dissolved Oxygen (DO) was found on 4, 8, 9, 10, 11 and 12
September 2008 while exceedance of the
Action Limit Levels for Bottom DO was found on 9, 10, 11 and 12 September
2008. Exceedance
of the Action Level of Suspended Solids was found on 4 and 18 September 2008. Following review of data in accordance with
the procedures specified with the
EM&A Manual, these exceedances were
considered likely due to natural fluctuation from the
Complaint Log
No environmental
complaints were received during the reporting period.
Notifications of any Summons
and Successful Prosecutions
No environmental summon 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;
·
Operation
of dredging activities; and
·
Water
quality monitoring and dolphin monitoring during the dredging activities.
Leighton
Contractors (
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 has been 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
issued by the EPD on 27 February 2008.
The construction works and EM&A requirements were resumed on 9th
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.
This is the twenty-third EM&A Report which
summarizes the monitoring results and audit findings for the EM&A programme
during the reporting period from 1
September to 30 September 2008.
The project area
is in Area 38 of Tuen Mun
and the pipelines are located in
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.
A summary of the
major works undertaken in this reporting period is shown in Table 2.1.
Dredging operation has been suspended from 1 April to 31 August 2008 and
was resumed on 1 September 2008. Table
2.2 presented the cumulative quantity of excavated materials up to 30
September 2008. 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) |
Submarine |
Dredging
Operations |
Table 2.2 Cumulative
Quantity of Excavated Marine Sediments up to 30 September 2008
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 to 31 September 2008 |
|
Contaminated Mud |
3,107 |
Uncontaminated Mud |
0 |
Daily water quality monitoring (except public holidays
and weekends) during dredging activities recommenced on 1 September 2008. The monitoring schedule for September 2008 is
presented in Annex C.
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 |
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 |
Wastewater
Discharge License |
EP760/421/011399/l |
15 March 2006 to 31 March 2011 |
Issued
on 15 March 2006 |
According
to the EP requirements, a Community Liaison Group (CLG) shall be established within
three months after 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 month, a meeting was organised by the CLG on 10 September
2008.
The
details of the CLG (including Membership and its Terms of Reference) can be
found on the Project website (http://www.paffhk.com).
Water quality
monitoring during dredging activities recorded exceedance
of the Action Limit Levels for Depth-averaged Dissolved Oxygen (DO) on 4, 8, 9,
10, 11 and 12 September 2008. There were
exceedances of the Action Limit Levels for Bottom DO
on 9, 10, 11 and 12 September 2008. Exceedance of the Action Level of Suspended Solids was
found on 4 and 18 September 2008. A
description of the actions taken following these non-compliances is discussed
in Section 3.2.
No environmental
complaints were received during the reporting period. A summary of environmental complaints since project
commencement is presented in Annex D.
No summons was
received in this reporting period. A
summary of legal proceeding since project commencement is presented in Annex D.
As no
environmental complaint was received over the last reporting period, no
follow-up action was required.
Weekly site
inspections were carried out by the ET on 5, 12, 18, and 26 September
2008. Overall, the site was in good
orderly manner and no non-compliances were found. Environmental deficiencies and follow-up
actions/mitigation measures were identified during the inspections, as follows:
Air Quality
·
Water tankers were used regularly to wet the road surface to minimize
dust emission.
·
Site entrance was paved and wheel-washing facility was provided to avoid
dust deposit on the public road.
·
Main access road within the site (between site office and exit) was
paved to avoid dust emission. Other
sections of the major access road in the construction area were paved with
stones.
Noise
·
No noisy activities that generated excessive noise were observed during
the audit.
·
All air compressors inspected on site were operated with a valid noise
label.
Water Quality
·
Site toilets were provided on site.
A soil soakaway system with holding tanks was
installed to treat the sewage from the toilets.
No effluent discharge out of the site was observed during the audits.
·
During the site inspections on stagnant water ponds were observed inside
the operation building and near the chemical waste storage at the surcharge
area (5 September 2008), in the chemical waste storage near the operation
building (12 and 18 September 2008) and in a trough near the pump platform (18
September 2008). The Contractor was
recommended to clear stagnant water as soon as possible.
·
During the site inspection on 5 September 2008, silt curtains were not
properly installed in the dredging area.
Sediment plumes were observed beyond the silt curtains in the dredging
area. The Contactor was recommended to
ensure silt curtains were properly installed prior to all dredging activities.
·
During the site inspections on 12 September 2008, oil sheens were
observed on the sea surface near the operation building. The Contractor was recommended to arrange
clearance of oil sheens as soon as possible.
·
During the site inspections on 18 September 2008, reddish sediment
plumes were observed in the water at the discharge outlet near the operation
building. Reddish water puddles were
observed on the access road in the tank farm area on the same day. The Contractor was recommended to check the
efficiency of sedimentation facilities and to review the effluent discharge
arrangements in the tank farm area.
·
During the site inspection on 26 September 2008, sediment plumes were
observed on the rear end of the hopper barge.
The Contractor was recommended to stop dredging operations immediately,
to investigate the cause of sediment plumes and to implement appropriate
mitigation measures.
Waste Management
·
During the site
inspection on 5 September 2008, chemical wastes were stored on the deck of the
hopper barge without spillage preventive measures and labels. On 12 September 2008, a diesel engine was put
on the deck without spillage preventive measures. On 26 September 2008, drums of chemical
wastes were placed on the deck of the dredging barge without spillage
preventive measures. The Contractor was
recommended to store diesel-operated machineries and chemical wastes in bunded areas to avoid potential spillages.
·
During the site
inspection on 5 September 2008, the construction waste skip in the tank farms
area was observed to be full. The
Contractor was recommended to arrange waste clearance as soon as possible.
·
During the site inspection
on 5 and 12 September 2008, drums of oil products behind the workshop were
placed on ground without drip trays. The
Contractor was recommended to provide drip trays for temporary storage of oil
products to avoid potential spillages.
·
During the site
inspection on 12 September 2008, it was observed that wastes were piled up on
ground next to the operation building.
The Contractor was recommended to replace refuse bin for temporary
storage of general refuse as soon as possible.
·
During the site
inspection on 26 September 2008, oil was observed on the floor near the diesel
storage tank behind the workshop and near the sedimentation tank in the tank
farms area. The Contractor was
recommended to clear spillages as soon as possible.
Landscape and Visual
·
The transplanted
trees at the new site were in good and healthy condition; and,
·
The berm was habilitated by vegetation.
With the
exception of the above observations, the site was in a good orderly
manner. 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.
Water quality monitoring
during dredging activities recorded exceedance of the
Action Limit Levels for Depth-averaged Dissolved Oxygen (DO) on 4, 8, 9, 10, 11
and 12 September 2008. There were exceedances of the Action Limit Levels for Bottom DO on 9,
10, 11 and 12 September 2008. Exceedance of the Action Level of Suspended Solids was
found on 4 and 18 September 2008.
Details of exceedance were presented in the
monitoring results as Annex G.
Although dredging
operations were undertaken during the reporting period, the exceedances
were unlikely to be caused by the Project and were considered to be an isolated
case due to the following reasons:
·
Exceedance of the Action Limit Levels for depth-averaged DO was
found on 8 September (when no dredging was undertaken). These values were comparable to those of days
with dredging operations; and,
·
Depth-averaged
Turbidity did not show the same trend of exceedances
indicating no potential relationship to a sediment plume generated by dredging
activities.
The exceedance was hence considered to be isolated case and may
be due to the regional natural fluctuation.
As per the
requirements of the EM&A Manual,
incident was notified to the Franchisee’s Site Representative, the Contractor
and the Independent Environmental Checker upon identification of an exceedance.
The temporal and
spatial trend of the results collected during the impact monitoring have
been plotted against those collected during the baseline monitoring and are
discussed below. Results are illustrated
in Figure
G3 in Annex G.
During impact
monitoring, depth-averaged DO and bottom DO levels at all stations are
generally comparable with those levels recorded during the baseline
monitoring. It is noted that there
appeared to be a decreasing trend in both DO levels at Impact Stations between
8 and 12 September, however, as this pattern was also observed in both upstream
and control stations, it is considered unlikely that these levels are
attributable to Project works.
During impact
monitoring on the flood tide, SS levels at all stations were found to be
generally comparable with those recorded during the baseline monitoring. An exception was noted on 4 and 18 September
where maximum levels were higher than those recorded during other monitoring
events. As levels returned to levels
comparable with other monitoring events the following day, such fluctuations
are not considered to be of a concern but rather isolated events. Furthermore, it is noted that upstream
Control Station C2 also recorded similar high levels on 5 September at mid ebb,
indicating potentially natural fluctuations.
Based on the
above, it is likely that the waters in the vicinity of the works site are
influenced by other factors, such as natural fluctuations of DO and SS observed
in the Pearl River Estuary.
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.
Air and Noise
monitoring is not required for the project.
In accordance to the EM&A Manual, water quality monitoring
recommenced on 1 September 2008 alongside dredging activities. 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 turbidity levels of all Impact Stations were compliant with the Action
and Limit (AL) Levels specified in the EM&A Manual. Exceedance of the
Action Limit Levels for Depth-averaged Dissolved Oxygen (DO) was found on 4, 8,
9, 10, 11 and 12 September 2008 while exceedance of
the Action Limit Levels for Bottom DO was found on 9, 10, 11 and 12 September
2008. Exceedance
of the Action Level of Suspended Solids was found on 4 and 18 September
2008. A review of the above exceedances concluded that these were not attributable to
Project works and were likely due to natural variation (see Section 3.2 for further details).
Biweekly monitoring of POPs
in water samples was conducted on 3 and 17 September for POPs
analysis. All POPs
parameters (ie total PCBs, total DDTs
and total PAHs) were below detection limits. Monitoring results and QA/QC reports for POPs
testing are presented in Annex H.
The Watching Brief Report, verified by the
Independent Environmental Checker, was submitted to the EPD and AMO on 9 May
2008.
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 transplanted trees were in good and
healthy condition.
The weekly site inspections
included audits on landscape and visual issues to ensure that the site was in
orderly acceptable manner.
The ET and IEC verified
updated design audit plan was submitted to the EPD on 7 November 2007.
Weekly site
inspection covered the waste management aspects which included measures to
prevent land contamination by chemical wastes.
In accordance
with EM&A Manual, dolphin
monitoring has been undertaken during dredging activities since 1 September
2008. During the reporting period, a
total of 11 dolphin sightings were recorded.
Appropriate action was taken in accordance with the EM&A Manual. The
sighting locations and field records are presented in Annex I.
The EM&A Manual for the Project has been
updated by the ET to include the detailed arrangements of setting up a
Community Liaison Group, carrying out design audit, and monitoring of
Persistent Organic Pollutants during construction of the Project. No further actions regarding the EM&A
manual were required during the reporting month.
The Final Baseline Monitoring Report was submitted to the EPD on 20
February 2008 and placed under the EIAO register.
It should be
noted that dredging activities have been resumed from 1 September 2008. As such, the key issues to be considered in
the next one month will be:
·
Dust
release and suppression;
·
Operation
of dredging activities; and,
·
Water
quality monitoring and dolphin monitoring during the dredging activities
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 Dissolved Oxygen and possibly Suspended
Solids may be recorded. However, as with
those recorded so far, it is not expected that such exceedances
would be attributable to Project Works.
Work programme
for the next one month includes jetty platform works (non-piling), site works
(construction works for tank farm, operational and fire services buildings,
pump platform, drainages, bund wall, security wall etc) and dredging
operations. Weekly site inspections will
be undertaken. Water quality and dolphin
monitoring will be undertaken in accordance with the EM&A Manual.