1
introduction
ERM-Hong Kong, Limited (ERM) was
appointed by OSCAR Bioenergy Joint Venture (the Contractor) as the
Environmental Team (ET) to undertake the Environmental Monitoring and Audit
(EM&A) programme for the Contract No. EP/SP/61/10 of Organic Waste Treatment
Facilities Phase I, which the project name has been updated to Organic
Resources Recovery Centre (Phase I) (the Project)
since November
2017.
This is the thirteenth quarterly EM&A
summary report, which summarizes the impact monitoring results and audit
findings for the EM&A programme during the reporting period from 1 June
2018 to 31 August 2018.
The structure of the report is as
follows:
Section 1 : Introduction
It details the scope and structure of
the report.
Section 2 : Project
Information
It summarises
background and scope of the Project, site description, project organization,
construction programme, the construction works undertaken and the status of
Environmental Permits (EP)/licences over the construction phase of the Project.
Section 3 : Environmental
Monitoring Requirements
It summarises the
environmental monitoring including monitoring parameters, monitoring
programmes, monitoring frequency, monitoring locations, Action and Limit
Levels, Event/Action Plans, environmental mitigation measures as recommended in
the approved EIA report, EP and relevant environmental requirements stated in
the Contract Specification.
Section 4 : Implementation
Status on Environmental Mitigation Measures
It summarises the
implementation of environmental protection measures during the reporting
period.
Section 5 : Waste
Management
It summarises the quantity of
public fill and construction waste generated in the reporting period
Section 6 : Environmental
Site Inspection
It summarises the audit
findings of the weekly site inspections undertaken within the reporting period.
Section 7 : Environmental
Non-conformance
It summarises any exceedance
of environmental performance standard, and environmental complaints and
environmental summons received within the reporting period.
Section 8 : Conclusions
2
Project
information
The Organic Resources Recovery Centre (ORRC)
Phase I development (hereinafter referred to as “the Project”) is to design, construct
and operate a biological treatment facility with a capacity of about 200 tonnes
per day and convert source-separated organic waste from commercial and
industrial sectors (mostly food waste) into compost and biogas through proven
biological treatment technologies.
The environmental
acceptability of the construction and operation of the Project had been
confirmed by findings of the associated Environmental Impact Assessment (EIA) Study
completed in 2009. The Director of Environmental Protection approved this
EIA Report under the Environmental Impact Assessment Ordinance (EIAO) (Cap.
499) in February 2010 (Register No.: AEIAR-149/2010) (hereafter
referred to as the approved EIA Report). Subsequent Report on Re-assessment
on Environmental Implications and Report on Re-assessment on Hazard to Life
Implications were completed in 2013, respectively.
An Environmental Permit (EP)
(No. EP-395/2010) was issued by the Environmental Protection Department
(EPD) to the EPD, the Permit Holder, on 21 June 2010 and varied on 18 March
2013 (No. EP-395/2010/A) and 21 May 2013 (No. EP-395/2010/B),
respectively. The Design Build and Operate Contract for the ORRC
(Contract No. EP/SP/61/10 Organic Resources Recovery Centre Organic Resources
Recovery Centre (Phase I)) was awarded to SITA Waste Services Limited, ATAL
Engineering Limited and Ros-Roca, Sociedad Anonima jointly trading as the OSCAR
Bioenergy Joint Venture (OSCAR or the Contractor). A Further EP (No.
FEP-01/395/2010/B) was issued by the EPD to the OSCAR on 16 February 2015.
Variation to both EPs No. EP-395/2010/B and No. FEP-01/395/2010/B were made in
December 2015. The latest EPs, No. EP-395/2010/C and No.
FEP-01/395/2010/C, were issued by the EPD on 21 December 2015.
Under the requirements of
Condition 5 of the EP (No. FEP-01/395/2010/C), an Environmental Monitoring and
Audit (EM&A) programme as set out in the Agreement No. CE7/2008 (EP)
EM&A Manual (hereinafter referred to as EM&A Manual) is required to be
implemented. ERM-Hong Kong, Ltd (ERM) has been appointed by OSCAR as the
Environmental Team (ET) to undertake the EM&A programme for the Contract.
The construction works commenced on 21
May 2015 and are scheduled for completion by October 2018.
2.2
General Site
Description
The Project Site is located at Siu Ho
Wan in North Lantau with an area of about 2 hectares. The layout of the upgrading works is
illustrated in Annex A.
A summary of the major construction
activities undertaken in the reporting period is shown Table 2.1.
The locations of the construction activities are shown in Annex B. The construction programme of
the Project is presented in Annex
C.
Table 2.1 Summary
of Construction Activities Undertaken in the Reporting Period
|
Construction Activities Undertaken
|
|
·
Building 1 – ABWF/finishing work and BS
installation ;
·
Building 2 & 3 – ABWF/finishing work and
BS installation ;
·
Electrical installation (cable trays, Local
Control panels/switch installation, general cabling works, instrumentation
and control installation, lighting , ELV and SCADA installation) ;
·
GRP ductwork to Building 1 roof and SBT area
substantially completed;
·
Installation of BS Roller Shutters;
·
Electrical installation (cable trays, Local
Control panels/switch installation, general cabling works, instrumentation
and control installation, lighting , ELV and SCADA installation);
·
BS works (MVAC, FS, P/D) ;
·
Landscaping works;
·
Boundary fence remaining behind B 2
completed;
·
Handover of areas to T&C team ongoing and
energization. Dry commissioning (a) & wet commissioning
(b) in progress;
·
Systems being operated – waste reception,
pre-treatment, CAPCS extraction, the digesters, the centrifuge, the
desulphurization, the emergency flare, the CHPs, the ASP and the biological
waste water treatment plant;
·
Process commissioning in progress - waste
reception, pre-treatment, CAPCS extraction, the digesters, the centrifuge,
the composting tunnels, the desulphurisation, the emergency flare, the CHPs,
the ASP and the biological waste water treatment plant (about 50-80 t/d SSOW
input).
|
|
Note:
(a) Dry
Commissioning: Refers to individual equipment testing for functionality and
reliable operation.
(b) Wet
Commissioning: Refers to the equipment testing with water in manual and
automatic mode in the process units, which are ready to operate individually
and as part of the process unit as a whole.
|
2.4
Project Organisation
and Management Structure
The project organisation chart and
contact details are shown in Annex D.
2.5
Status of
Environmental Approval Documents
A summary of the valid permits,
licences, and/or notifications on environmental protection for this Project is
presented in Table 2.2.
Table 2.2 Summary
of Environmental Licensing, Notification and Permit Status
|
Permit/
Licenses/ Notification
|
Reference
|
Validity
Period
|
Remarks
|
|
Environmental
Permit
|
FEP-01/395/2010/C
|
Throughout
the Contract
|
Permit
granted on 21 December 2015
|
|
Notification
of Construction Works under the Air Pollution Control (Construction Dust)
Regulation
|
Ref
No. 386715
|
Throughout
the Contract
|
-
|
|
Effluent
Discharge License
|
WT00021482-2015
|
21
May 2015 – 31 May 2020
|
Approved
on 21 May 2015
|
|
Construction
Noise Permit – P1&P2
|
GW-RW0637-17
(Superseded
CNP GW-RW0351-17)
|
21 January 2018–
20 July 2018
|
Approved
on 14 December 2017
|
|
Construction
Noise Permit – P1&P2
|
GW-RW0229-18
(Superseded
CNP GW- RW0637-17)
|
21 July 2018 - 20 January 2019
|
Approved
on 19 June 2018
|
|
Construction Noise Permit – P3
|
GW-RW0184-18
(Superseded
CNP GW-RW0565-17)
|
1 June 2018 – 30 November 2018
|
Approved
on 17 May 2018
|
|
Construction Noise Permit – P5 (Slope)
|
GW-RW0107-18
|
30 March 2018 – 29 September 2018
|
Approved
on 20 March 2018
|
|
Chemical
Waste Producer Registration
|
WPN
5213-961-O2231-01
|
Throughout
the Contract
|
Approved
on 29 April 2015
|
|
Waste
Disposal Billing Account
|
Account number: 702310
|
Throughout
the Contract
|
-
|
3
Environmental
Monitoring Requirement, environmental Mitigation Measures
All the relevant environmental
mitigation measures listed in the EIA Report and EM&A Manual are summarised
in Annex E.
According to the EM&A Manual and EP
requirement, no air quality, noise and water quality monitoring is required
during the construction phase.
According to the EM&A Manual and EP
requirement, odour monitoring is required during the commissioning phase.
The odour patrols shall be conducted by
an odour patrol team. The odour patrol team will patrol and sniff along an
odour patrol route at the site boundary. The implementation of the odour patrol
shall be subject to the prevailing weather forecast condition and no odour
patrol should be carried out during rainy day. The odour patrol team should be
comprised of at least two independent trained personnel / competent persons,
who should pass a set of screening tests.
During July 2018, odour patrol were
conducted by representatives of the Contractor, the ER and Employer (EPD
Project Team) on 3, 4, 6, 10, 12, 13, 16, 18, 20, 23, 25, 27 and 30 July
2018. The Independent Odour Patrol Team, ALS Technichem (HK) Pty
Ltd (ALS), has also joined the odour patrol on 27 July 2018. According to the EM&A
Manual and EP requirement, it is considered an exceedance if the odour
intensity recorded by the panellists is Level 2 or above. During this
reporting period, no Level 2 Odour Intensity was recorded. The odour
patrol results are shown in Annex
H.
On 27 July 2018, air
samples were also collected from the outlet of the Centralised Air Pollution
Control (CAPC) unit by ALS for measurement of the Odour Intensity by
olfactometry analysis at the laboratory. According to the EM&A Manual and EP
requirements,
it is considered an exceedance if the odour level is more than 200 OU/Nm3.
During this reporting period, no exceedance was observed. The laboratory
results are shown in Annex
H.
During August 2018, Odour patrol were
conducted by representatives of the Contractor, the ER and Employer (EPD
Project Team) on 1, 3, 6, 8, 10, 13, 15, 20, 22, 24, 27 and 31 August
2018. The Independent Odour Patrol Team, ALS Technichem (HK) Pty
Ltd (ALS), has also joined the odour patrol on 31 August 2018. According to the EM&A
Manual and EP requirement, it is considered an exceedance if the odour
intensity recorded by the panellists is Level 2 or above. During this
reporting period, no Level 2 Odour Intensity was recorded. The odour
patrol results are shown in Annex
H.
On 31 August 2018, air
samples were also collected from the outlet of the Centralised Air Pollution
Control (CAPC) unit by ALS for measurement of the Odour Intensity by
olfactometry analysis at the laboratory. According to the EM&A Manual and EP
requirements,
it is considered an exceedance if the odour level is more than 200 OU/Nm3.
During this reporting period, the odour level of the odour samples
collected from the CAPC unit have exceeded the odour limits stated in Table 2.2
of the EM&A Manual. The monitoring results are shown in Annex H.
Investigation of the
exceedance has been conducted. Odour emitting activities, including
wastewater treatment plant and ammonia stripping plant (ASP) were operating on
31 August 2018. No organic waste were being processed the time the odour samples
were being collected, due to pre-treatment line was stopped and only operated
at mid night. The CAPC system was operating during the odour
sampling. The contractor reported that the active carbon (AC) filter and
the venture scrubber in Building 2 were operating. The wet & chemical
scrubbers were not operating at the time of the sampling as it is still under testing
and commissioning. The exceedance could be due to saturation of the
AC filter as an increase of VOCs concentration was observed.
The contractor has
replaced all AC filter media in the last week of September 2018. To avoid
saturation of the filter media, it is recommended that the contractor should
test the medium regularly or indicator medium should be used to provide an
indication of the condition of the media.
Bi-weekly landscape and visual audit is
required to
ensure that the design, implementation and maintenance of landscape and visual
mitigation measures recommended in the EIA Report are fully achieved.
4
Implementation
Status on Environmental Protection Requirements
The Contractor has implemented
environmental mitigation measures and requirements as stated in the approved
EIA Report and EM&A Manual. The implementation status of the measures
during the reporting period is summarised in Annex E.
5
Waste
Management
Wastes generated from this Project
include inert construction and demolition (C&D) materials (public fill) and
non-inert C&D materials (construction waste). Construction waste comprises
general refuse, metals and paper/cardboard packaging materials. Metals
generated from the Project are also grouped into construction waste as the
materials were not disposed of with others at public fill. Reference has
been made to the Monthly Summary Waste Flow Table prepared by the Contractor
(see Annex F). With reference to
the relevant handling records and trip tickets of this Project, the quantities
of different types of waste generated in the reporting month are summarised in
in Table 5.1.
Table
5.1 Quantities
of Waste Generated from the Project
|
Month /
Year
|
Quantity
|
|
|
Total Inert C&D Materials
Generated (a)
|
Non-inert C&D Materials (b)
|
|
C&D Materials Recycled (c)
|
C&D Waste Disposed of at Landfill (d)
|
Chemical Waste
|
|
June 2018
|
684.10 tonnes
|
27,210 .00 kg
|
43.01 tonnes
|
0.00 L
|
|
July 2018
|
93.99 tonnes
|
17,420.00 kg
|
59.77 tonnes
|
0.00 L
|
|
August 2018
|
528.56 tonnes
|
73,780.00 kg
|
44.50 tonnes
|
0.00 L
|
|
Notes:
(a) Inert C&D materials
(public fill) include bricks, concrete, building debris, rubble and excavated
spoil. In total, 1,306.65
tonnes of
inert C&D material were generated from the Project, of which 523.5 tonnes
were reused in this Contract and the remaining 783.15 tonnes were disposed as
public fill to Fill Banks at Tuen Mun Area 38. The detailed waste flow is
presented in Annex F.
(b) Non-inert C&D materials
(construction wastes) include metals, paper / cardboard packaging waste,
plastics and other wastes such as general refuse. Metals generated from
the Project were grouped into construction wastes as the materials were not
disposed of with others at the public fill.
(c) 39,160.00 kg of metals, 49,860.00 kg of papers/ cardboard
packing and 29,390.00
kg of plastics were
sent to recyclers for recycling during the reporting period.
(d) Construction wastes other than metals,
paper/cardboard packaging, plastics and chemicals were disposed of at NENT
Landfill by subcontractors.
|
6
Environmental Inspections
Thirteen site inspections were conducted
during the reporting period. There was no non-compliance recorded during
the site inspections. Follow-up actions were undertaken as reported by
the Contractor and observed in the subsequent weekly site inspections conducted
in the reporting period.
June 2018
Joint site inspections were conducted by
the representatives of the Contractor, ER, IC and ET on 5, 13, 19 and
26 June 2018. The IEC was also present at the joint inspection on 13 June 2018.
July 2018
Joint site inspections were conducted by
the representatives of the Contractor, ER, IC and ET on 3, 10, 18,
24 and 31 July 2018.
The IEC was also present at the joint inspection on 18 July 2018.
August 2018
Joint site inspections were conducted by
the representatives of the Contractor, ER, IC and ET on 7, 15, 21
and 28 August 2018. The IEC was also present at the joint
inspection on
15 August 2018.
Seven landscape and visual monitoring
site inspections were conducted during the reporting period. Follow-up
actions needed to be implemented were recommended to the Contractor and the
status of the follow-up actions was reviewed during the subsequent weekly site
inspections. It was confirmed that most of the necessary landscape
and visual mitigation measures as summarised in Annex E were
implemented by the Contractor.
In accordance with the
EM&A Manual, bi-weekly landscape and visual inspection
is required to ensure that the design, implementation and maintenance of
landscape and visual mitigation measures recommended in the EIA Report are
fully achieved. The
onsite inspection of the landscape and visual mitigation measures has commenced since June
2015 during weekly site inspections.
June 2018
Bi-weekly site
inspections
were conducted on 11 and 25 June 2018.
July 2018
Bi-weekly site
inspections
were conducted on on 3, 16 and 30 July
2018.
August 2018
Bi-weekly site
inspections
were conducted on 6 and 20 August 2018.
Key landscape and
visual mitigation measures implemented in the reporting period included:
·
Provide
insect prevention measures to the exposed root of retained tree to prevent
potential damage due to the exposure.
·
Provide
the non-moisture holding material around the trees to prevent potential damage.
·
Avoid
placing machine near the tree protection zone.
6.3
Effectiveness of
Mitigation Measures and Monitoring
The mitigation measures recommended in
the EIA report and required by the EP are considered effective in minimizing
environmental impacts.
The EM&A for the Project was
conducted as scheduled during the reporting period. No non-compliance
events were observed during site inspections and no
exceedances were recorded during this reporting period. The EM&A programme is
considered effective.
7
Environmental Non-conformance
7.1
Summary of Environmental Non-Compliance
Two incidents occurred during the
reporting period.
On 26 July 2018, the incident occurred
at Suspension
Buffer Tank (SBT)
at P1 Building1 of the Site, which a spillage of foam within the bund wall of SBT was observed. The incident had been
investigated and the agreed remedial works and follow-up actions will be
completed by the Contractor shortly. The Investigation Report is shown in
Annex I.
On 13 August 2018, the incident occurred at Sequencing
Batch Reactor 2 (SBR2) at P1 Building1 of the Site, which some foam was
overflowed from the vent of SBR 2 but no wastewater was overflowed. The
incident had been investigated and the agreed remedial works and follow-up
actions will be completed by the Contractor shortly. The Investigation
Report is shown in Annex
I.
7.2
Summary of Environmental
Complaint
No complaint was received
during the reporting period. The cumulative environmental complaint log
is shown in Annex G.
No summon/prosecution was
received during the reporting period. The cumulative summons/prosecution
log is shown in Annex G.
8
Conclusions
This EM&A Report presents the
EM&A works undertaken during the reporting period from 1 June 2018 to 31 August
2018 in accordance with EM&A Manual and requirements of EP (FEP-01/395/2010/C).
No air quality, noise and water quality
monitoring is required during the construction phase.
Odour patrol and monitoring are required
during the commissioning phase. No exceedance of odour intensity limit
for all odour patrol events. Air samples were also collected at the CAPC
unit for olfactometry analysis at the laboratory on 27 July 2018 and 31 August
2018, respectively. The result are shown in Annex H.
The odour level of the samples collected on 31 August 2018 have exceeded the
odour limit. An investigation of the cause of the exceedance is being
carried out.
Bi-weekly landscape and
visual monitoring was conducted in this quarterly period. Most of
the necessary landscape and visual mitigation measures recommended in the EIA
Report were implemented by the Contractor. Follow-up actions would be
implemented by the Contractor to improve protection measures on the retained or
to-be transplanted trees.
Two incidents occurred during reporting
period. The Investigation Reports are provided in Annex I.
The incidents did not lead to adverse environmental impact.
No complaint and summons/prosecution was
received during the reporting period.
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 in the coming periods.
