Development
of Organic Waste Treatment Facilities, Phase 2
Environmental Impact
Assessment Report
Chapter Title
|
12.6 Waste Management Implications 12.9 Landscape and Visual Impact 12.10 Cultural Heritage Impact |
This Section presents a summary of Environmental Monitoring and Audit (EM&A) requirements for each impact assessment described in this EIA Report.
Details on the requirements, methodology and action plans are described in a standalone EM&A Manual.
As no ASRs are predicted to exceed the relevant criteria with implementation of the recommended mitigation measures, regular dust monitoring is not considered necessary during the construction phase of the Project. However, regular site audits are suggested to ensure the dust control measures are properly implemented. Details of the environmental monitoring and audit (EM&A) programme will be presented in the stand-alone EM&A Manual.
Should the recommended mitigation measures
be implemented for the operational phase, no ASRs are predicted to exceed the
relevant criteria under the current AQOs. Though for performance, a
Continuous Emission Monitoring System (CEMS) will be installed to monitor air
emissions at the OWTF2. Odour patrol at the project site boundary is
proposed to monitor any odour impact arising from the operation of the OWTF2. Regular
audits are also suggested to ensure proper operation and maintenance of the
recommended pollution control equipment. Details of the environmental
monitoring and audit (EM&A) programme are contained in the stand-alone
EM&A Manual.
“Good Practices” and “recommended design measures” for the safe operation of OWTF 2 that have been assumed within the Hazard to Life Assessment are summarised in Section 4.9. Risk mitigation measures have not been proposed in the current EIA, as the risk is found to be at an acceptable level. Therefore, no environmental monitoring and audit requirements are proposed.
Given that unmitigated construction noise impact is predicted during the construction phase and to ensure that the nearby NSRs will not be subjected to unacceptable construction noise impact, an Environmental Monitoring and Audit (EM&A) programme is recommended. Details on the noise monitoring requirements, methodology and action plans are described in the separate EM&A Manual.
Prior to the
operation phase of the Project, as part of the design process, commissioning
tests should be conducted to ensure the operation noise from the fixed plant
would comply with the relevant
It is predicted that there will be no adverse noise impact generated from the operation of the Project, hence no environmental monitoring and audit is proposed.
Adverse water quality impact was not
predicted during the construction and operation phase of the Project.
Nevertheless, appropriate mitigation measures are recommended to minimise
potential water quality impacts. Water quality monitoring is not considered
necessary. However, regular audit of the implementation of the
recommended mitigation measures during construction phase at the work areas
should be undertaken during construction phase to ensure the recommended mitigation
measures are properly implemented.
It would be the
Contractor’s responsibility to ensure that all wastes produced during the
construction of the Project are handled, stored and disposed of in accordance
with the recommended good waste management practices and EPD’s regulations and
requirements. A WMP which would become
part of the EMP should be prepared in accordance with ETWB TC(W) No. 19/2005 by the Contractor. Mitigation measures recommended in this
section should form the basis of the WMP.
Waste
materials generated from construction activities, such as excavated materials,
C&D materials and general refuse, are recommended to be audited at regular
intervals to ensure that proper storage, transportation and disposal practices
are being implemented. The Contractor
would be responsible for the implementation of mitigation measures to minimise
waste or redress problems arising from the waste materials.
The
ecological impact assessment has evaluated the ecological impacts of the
proposed Project and has concluded that no unacceptable ecological impact will
result. No specific ecological
mitigation measure is required while precautionary measures for the plantation area are proposed. The
proposed precautionary measures to avoid any impacts arising from the Project
should be checked as part of the environmental monitoring and audit programme
during the construction phase. Precautionary measures recommended to be
implemented during the construction phase are summarised below:
¡ Detailed vegetation survey as baseline
monitoring to update the exact locations, number and condition of individuals
of Aquilaria sinensis and
any other floral species of conservation interest within the Project Area prior
to commencement of any construction works;
¡ Proposal of mitigation measures, such as
transplantation, if individuals of floral species of conservation interest
likely to be affected by the Project is identified in the detailed vegetation
survey;
¡ Erection of temporary protective fence along
the plantation area where trees and vegetation would be retained within the
Project Area and proper maintenance of such protective measure during
construction; and
¡ Monitoring of any floral species of
conservation interest identified in the detailed vegetation survey during the
construction phase on a monthly basis.
The
implementation, monitoring and audit of the above precautionary measures should
be conducted as presented in the standalone EM&A Manual. In addition, the mitigation measures for
air, noise, water and landscape aspects proposed in respective sections which
are indirectly beneficial to the local ecology shall be checked as part of the
environmental monitoring and audit procedures during construction period as
presented in the standalone EM&A Manual.
Commercial pond fish culture resources or activities were not identified within the Study Area. With the water quality control measures in place, the Project is unlikely to cause any direct or indirect impacts on the pond fish culture resources or activities in the Study Area. Therefore, no monitoring and audit programme or requirement for fisheries impact is considered necessary.
Other than
preservation of existing topsoil as good site practice, Construction Phase
mitigation measures comprise the following:
¡ CP1 – Existing trees are retained whenever possible and protected during construction.
¡ CP2 – The construction site activities are carefully designed to minimise impact such as light, noise, tree felling and eyesores.
¡ CP3 – Transplantation would be performed whenever possible.
Operational Phase mitigation measures
comprise the following:
¡ OP1 – The location and layout of the
proposed OWTF 2 and associated facilities are designed in a way that has the
lowest impact to the proposed site.
¡ OP2 – Amenity / compensatory planting will be
utilised throughout the site.
¡ OP3 – Planting will be added by man-made
slopes to give a more natural appearance.
¡ OP4 – Vertical and rooftop greening will
maximise green space and soften hard structures.
The abovementioned mitigation measures shall be checked as part of the environmental monitoring and audit procedures during construction period as presented in the standalone EM&A Manual.
No EM&A
requirements are considered necessary during the construction or operation
phases of the Project.