7.1
This section further elaborates the
requirements of environmental monitoring and audit (EM&A) for the Project,
based on the assessment results of various issues.
7.2
The objectives of carrying out EM&A for
the Project include the following:
·
To provide a database against which any
environmental impacts of the Project can be determined;
·
To provide an early indication should any of
the environmental control measures or practices fail to achieve the acceptable
standards;
·
To monitor the performance of the Project and
the effectiveness of mitigation measures;
·
To verify the environmental impacts predicted
in this EIA;
·
To determine project compliance with
regulatory requirements, standards and government policies;
·
To take remedial action if unexpected
problems or unacceptable impacts arise; and
·
To provide data to enable an environmental
audit.
7.3
The following sections summarize the
recommended EM&A requirements.
Details of the EM&A are presented in a stand-alone EM&A Manual.
7.4
Based on the assessment of the water quality
impact, an EM&A programme is considered necessary to obtain a database of
baseline information of water quality before the marine construction works, and
thereafter, to monitor any variation of water quality from the baseline
conditions and exceedances of WQOs at sensitive receivers in Victoria Harbour during
the marine construction works. Monitoring parameters will include dissolved
oxygen (DO), turbidity and suspended solids (SS).
7.5
Details of the EM&A programme are to be
provided in the stand-alone EM&A Manual.
If the water quality monitoring data indicate that the proposed marine
works result in unacceptable water quality impacts in the receiving water,
appropriate actions should be taken to review the dredging operation and
additional measures such as slowing down, or rescheduling of works should be
implemented as necessary.
7.6
Construction noise impacts from this Project
would be expected at NSR and are identified in this EIA. Appropriate mitigation measures would be
required in order to alleviate the impacts to meet the EIAO-TM criteria. Noise monitoring during construction phase
needs to be carried out to ensure that such mitigation measures would be
implemented properly.
7.7
Noise monitoring should be carried out at the
designated monitoring stations, and measurement should be undertaken at a
minimum logging interval of 30 minutes.
Prior to the commencement of the Project, baseline monitoring should be
measured for a continuous period of at least 14 consecutive days at a minimum
logging interval of 30 minutes for daytime.
During impact monitoring, noise measurement should be conducted at the
designated monitoring locations once a week. Ad hoc noise monitoring should also be
carried out if necessary. Details of the
EM&A programme are provided in the stand-alone EM&A Manual.
7.8
With the
implementation of the dust suppression measures stipulated in the Air Pollution
Control (construction Dust) Regulation, good site practices and proposed
mitigation measures, no adverse dust impact would be expected at the ASRs in
the vicinity of the construction sites. 24-hour
dust monitoring requirements are recommended in the EM&A Manual to check
the efficacy of the control measures.
Details of the EM&A programme are provided in the stand-alone
EM&A Manual.
7.9
During the
construction period, it is the Contractor’s responsibility to ensure that all
the waste produced during the construction of the Project are handled, stored
and disposed of in accordance with good waste management practices, relevant
legislation and waste management guidelines.
7.10
Waste materials
generated during construction activities, such as C&D materials, are
recommended to be audited at regular intervals to ensure that proper storage,
transportation and disposal practices are implemented. This measure ensures the proper disposal of
waste. The Contractor would be
responsible for the implementation of any mitigation measures to minimize waste
or mitigate problems arisen from waste materials.
7.11
A Waste Management
Plan (WMP), as part of the Environmental Management Plan (EMP) should be
prepared in accordance with ETWB TC(W) No.19/2005 and
submitted to the Engineer for approval.
The recommended mitigation measures should form the basis of the WMP. The monitoring and auditing requirement
stated in ETWB TC(W) No.19/2005 should be followed
with regard to the management of C&D materials.
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