This EIA
study has focused on the assessment and mitigation of the potential impacts
associated with the phased decommissioning/ demolition/ construction and
operation of the Project. One of the key
outputs has been the identification of mitigation measures to be undertaken so
that residual impacts comply with regulatory requirements including the EIAO-TM.
To confirm effective and timely implementation of the mitigation
measures, it is considered necessary to develop Environmental Monitoring and
Audit (EM&A) procedures and mechanisms by which the Implementation Schedule
(Appendix 8A) may be tracked
and its effectiveness assessed.
The
objectives of carrying out EM&A for the Project include:
§ Providing
baseline information against which any short or long term environmental impacts
of the Project can be determined;
§ Providing
an early indication should any of the environmental control measures or
practices fail to achieve the acceptable standards;
§ Monitoring
the environmental performance of the Project and the effectiveness of the
recommended mitigation measures;
§ Verifying
the environmental impacts identified in the EIA;
§ Determining
Project compliance with regulatory requirements, standards and government
policies;
§ Taking
remedial action(s) if unexpected results or unacceptable impacts arise; and
§ Providing
data to enable an environmental audit to be undertaken at regular intervals.
The
following Sections summarise the
recommended EM&A requirements for the Project. Further details are provided in the EM&A Manual.
The EIA
study concluded that no adverse fugitive dust impact is anticipated during the decommissioning/
demolition and construction of Project, and dust monitoring is considered not
necessary. However, it is recommended to
conduct regular environmental site inspections, i.e. on weekly basis, to
confirm the implementation of the dust control measures and good site practices
as recommended in Section 3.9.1 throughout the decommissioning/ demolition and
construction phases. These measures are
also summarised in the Implementation Schedule provided in Appendix 8A.
Based on
the prediction of the air quality modelling exercise conducted under this EIA
study, no adverse air quality impact is anticipated during the operation of the
new OCGTs. Regular environmental site inspections
or air quality monitoring during the operation phase is considered not
necessary.
The EIA
study concluded that no adverse noise impact is anticipated during the
decommissioning/ demolition and construction of the Project, and noise
monitoring is considered not necessary. However,
it is recommended to conduct regular environmental site inspections, i.e. on
weekly basis, to confirm the implementation of the good site practices as
recommended in Section 4.7.1 throughout the decommissioning/ demolition and
construction phases. These good site
practices are also summarised in the Implementation Schedule provided in Appendix 8A.
Based on
the prediction of quantitative noise assessment conducted under this EIA study,
no adverse noise impact is anticipated during the operation phase of the
Project. Regular environmental site inspection
or noise monitoring during the operation phase is considered not necessary.
The EIA
study concluded that no adverse water quality impact is anticipated during the
decommissioning/ demolition and construction of the Project, and water quality
monitoring is considered not necessary. However,
it is recommended to conduct regular environmental site inspections, i.e. on a
weekly basis, to confirm the implementation of the water pollution control
measures and good site practices as recommended in Section 5.5 throughout
the decommissioning/ demolition and construction phases. These measures are summarised in the
Implementation Schedule provided in Appendix
8A.
Similar to
the operation of the existing units, there will be no cooling water discharge
during the operation of the new OCGTs. Regular
environmental site inspection or water quality monitoring during the operation
phase is considered not necessary.
The EIA
study concluded that no adverse environmental impacts or other hazards arising
from waste management is anticipated during decommissioning/ demolition and
construction of the Project with the implementation of good site practices. It is recommended to conduct regular
environmental site inspections, i.e. on a weekly basis, to audit the waste
management practices and to determine if wastes are being managed in accordance
with the recommended good site practices and WMP throughout the decommissioning/
demolition and construction phases. The
audits will investigate all aspects of waste management including waste
generation, storage, handling, recycling, transportation and disposal. The recommended waste management measures are
summarised in the
Implementation Schedule provided in Appendix
8A.
As the operation of the new units and associated
equipment will generate minimal quantity of waste and no adverse environmental
impacts will arise with the implementation of standard waste management
practices at LPS, regular environmental site inspection or waste monitoring during
the operation phase is considered not necessary.
A Land
Contamination Specialist shall be engaged to oversee the removal/ demolition
process of the Project and review the need to include additional sampling
locations, as per recommendations in the CAP.
SI and sampling works at the proposed sampling locations shall be
undertaken under the supervision of the Land Contamination Specialist once the
proposed sampling locations are made available during the course of the
decommissioning/ demolition phase.
During the
decommissioning/ demolition and construction phases, good housekeeping
practices shall be maintained by the contractor(s) to minimise the risk of land
contamination associated with the decommissioning, demolition and construction
activities. With good housekeeping
practices in place, adverse land contamination impact during the decommissioning/
demolition and construction phases is not expected. To ensure that the recommendations as
described in Section 7.9 have been properly implemented by the
contractor(s), regular environmental site inspections, i.e. on a weekly basis,
during decommissioning/ demolition and construction phases of Project shall be
conducted. The visual inspections/audits
will look at all aspects of construction activities that disturb soil. The recommended good housekeeping
practices for decommissioning/ demolition and construction phases are
summarised in the
Implementation Schedule provided in Appendix
8A.
There would be no land contamination issue associated with
the operation of the Project with the current good housekeeping practices at
LPS in place. Regular environmental site
inspection or monitoring related to land contamination during the operation
phase is considered not necessary.