11.1.1.1 This
EIA report has provided an assessment of the potential environmental impacts
associated with the construction and operation of the EMSD Hong Kong Workshop,
based on the preliminary engineering design information available. The EIA has been conducted, in
accordance with the EIA Study Brief No: ESB-231/2011 issued under the EIAO for
this Project. The
findings of this EIA study have determined the likely nature and extent of
environmental impacts predicted to arise from the construction and operation of
the Project. During the EIA
process, environmental control measures were identified and incorporated into
the planning and design of the Project to achieve the compliance with
environmental legislation and standards during both the construction and
operation phases. The Environmental
Mitigation Implementation Schedules are presented in Section 12 of this EIA
report. Details of individual
environmental aspects are summarised below.
11.2.1.1 With
the use of quieter construction plant and temporary noise barrier, adverse
impact to the NSRs would not be anticipated during the construction phase. In the operation phase, with proper
noise barrier installed at the speedometer calibrator and noise curtain at the
western site boundary, adverse impacts would also not be anticipated, even though the
operation would be extended beyond July 2017 as planned.
11.3.1.1
There would be no major earthwork carried out for the site
formation works for the Project site.
With the implementation of sufficient dust suppression measures as
stipulated under the Air Pollution Control (Construction Dust) Regulation,
adverse construction dust impact would not be anticipated. For the operation of the workshop, no
adverse air quality impacts would be anticipated as there would only be minor
number of vehicles involved in the operation of the workshop, even though the
operation would be extended beyond July 2017 as planned.
11.4.1.1
Potential water pollution sources have been identified as
construction site run-off, sewage from workforce, and potential risk of
chemical spillage. Mitigation measures including the implementation of the
construction site practices in accordance with the EPD’s ProPECC PN 1/94 Construction Site Drainage, provision
and management of portable toilets on-site, and preventive measures to avoid accidental
chemical spillages are recommended to
mitigate any adverse water quality impacts, based on which adverse residual
impacts would not be anticipated. Also,
there would be sewerage and sewage treatment implications during the operation
of this Project, but adverse water quality impact would not be anticipated with
the implementation of the recommended mitigation measures based on the findings
of this EIA study, even though the operation would be extended beyond July 2017
as planned.
11.5 Waste Management Implication and Land Contamination
11.5.1.1
The quantity and timing for the
generation of waste during the construction phase have been estimated. Measures, including the opportunity for
on-site sorting, reusing excavated fill materials (on-site and off-site) etc.,
have been devised in the construction methodology to minimise the surplus
materials to be disposed off-site.
The annual disposal quantities for C&D materials and their disposal
methods have also been assessed. Recommendations
have been made for the Contractor for implementation of measures during the
construction period to minimise the waste generation and any off-site disposal. The types and quantities of waste that
would be generated during the operation phase have been assessed. Recommendations have been made to ensure
proper treatment and disposal of these wastes. No construction work is allowed to
proceed until all issues on management of C&D materials have been resolved
and all relevant arrangements have been agreed between the responsible
Government department and party. Adverse
residual impact would not be anticipated during both the construction and
operation phases of this Project, even though the
operation would be extended beyond July 2017 as planned.
11.5.1.2
There were no sources of historic land contamination issues
associated with the Project site.
For the future operation of this workshop, with the implementation of
the preventive and precautionary plan as recommended in this EIA study, land
contamination impact would not be anticipated, even though the operation would
be extended beyond July 2017 as planned.
11.6 Landscape and Visual Impacts
11.6.1.1
A landscape and visual impact assessment has been conducted
which covers a 500m study area for assessment of landscape impacts, and the
visual envelope (within which the proposed scheme can be seen) for assessment
of visual impacts. Given the
temporary nature and scale of the project, the proposed development will not
have any impacts on existing off-site landscape resources and landscape
character areas, while on-site landscape impacts will be limited to felling of
ten common tree species and removal of some weedy/ dead trees and temporary
loss of approximately 2,040 m2 of LR7-1 (open space/vacant
land). Due to limited size of the
site and the proposed land use (a workshop), no space could be allowed for
on-site tree compensation for proposed felling of the ten native trees. However, after felling of 10 trees and
removal of some dead/ weedy trees, the site and the proposed development can
still be well screened on the southern boundary by the retained trees and the
existing footbridge. The resulting
landscape and/or visual impacts from proposed tree felling without mitigation
measures (e.g. on-site tree compensation) are still considered low.
11.6.1.2
Off-site tree compensation would be implemented at the EMSD
Tuen Mun Vehicle Servicing Station,
11.6.1.3
Due to the limited footprint of the Project site and the
existing development setting, the Project site can only be occasionally/ rarely
viewed by most of the identified visually sensitive receivers in the study
area. Except for the travellers on
Sheung On Street (VSR-T1) who are considered to have low to medium sensitivity
to visual change to the Project site, other identified VSRs are considered to
have low sensitivity to visual change to the Project site.
11.6.1.4
The proposed scheme is considered to have slight to moderate
impacts on the travellers on Sheung On Street, and low to slight impact to the
potential VSR-O6 The Proposed Education Institute at Junction of Shing Tai Road
and