9.2.2
The proposed Roads D1, D8, D10 and
extended Road P2 will all be formed on existing reclamation and thus no
dredging nor reclamation activities will be required. Marine-based construction works involving non-displacement type
bored piling will only be required for the piers supporting the elevated
section of Road D10 across the proposed extension of the eastern drainage
channel. The bored piling works are
expected to result in minimal disturbance to the seabed and the excavation of
sediment will be confined within the casing.
The construction works are therefore not anticipated to result in any
unacceptable impacts on marine water quality.
Furthermore, the pile supports for the Road D10 elevated section would
not form a barrier to leachate seepage from the TKO Stage 1 landfill and thus
it is expected that there would not be any significant change to the leachate
migration profile at the landfill. As
such, monitoring of marine water quality during the construction and operation
phases of the Project is not considered to be warranted.
9.3.1
Site measurement of air quality and
noise will be required during the construction phase. These measurements will ensure acceptable levels of environmental
impact are maintained including protection of ecological features. The Study EM&A manual has been produced
with reference to the TM under the EIAO, EPD’s Generic Environmental and Audit
Manual as well as the EM&A Guidelines.
It contains full details of the proposed baseline, compliance and
post-project monitoring programme.
9.5.2
The EM&A Manual also specifies the
EM&A programme for this study including the following aspects:
·
Air
quality
·
Noise
(construction noise and traffic noise)
·
Water
quality (including leachate monitoring and contingency plan for potentially
contaminated groundwater)
·
Solid
waste
·
Landfill
gas monitoring
·
Landscape
and visual.