13.1.1
This chapter summarizes the findings in the EIA
and evaluates the need for environmental monitoring and audit (EM&A) in
construction and operational phases. The aim of this EM&A is to
continuously monitor the changes of environmental parameters and the
effectiveness of mitigation. This helps early identification of unacceptable
environmental deterioration and allows formulation of rectification works at an
early stage.
13.1.2
Methodology and requirement of monitoring work
are detailed in a standalone Environmental Monitoring and Audit Manual
(EM&A Manual).
13.2.1
With implementation of dust suppression
measures, no unacceptable construction air quality impact is anticipated.
Regular air quality monitoring should be carried out at representative ASRs to
ensure that relevant air quality standard can be met.
13.2.2
Weekly site audit should be carried out to check
the implementation status of the recommended mitigation measures for air quality
impact throughout the construction period.
13.2.3
Based on the modeling results, the operation of
the Project is unlikely to cause exceedance of the air quality objectives at
the identified ASRs for all modeled parameters except the annual average NO2.
The exceedance is mainly due to high
background level and offsite air pollutant sources. No monitoring or
audit is proposed.
13.3.1
As no
adverse hazard to life impact is anticipated in this Project, no environmental monitoring or audit is
proposed.
13.4.1
Regular noise monitoring shall be carried out at
representative NSRs during the construction phase to ensure that relevant noise
criteria can be met and the noise mitigation measures are effective. Weekly
site audit should be carried out to check the implementation status of the
recommended mitigation measures for noise impact throughout the construction
period.
13.4.2
During operational phase, real time noise
monitoring at selected locations shall be conducted during the event in the
Main Stadium in the first 3 years of operation. After the 3-year monitoring
period, a review of the findings of the monitoring will be conducted to
determine whether further monitoring will be required. The corresponding
actions shall follow the Event and Action Plan in the EM&A Manual. The
organizer should also provide a manned complaint hotline to respond to
complaints from the nearby NSRs immediately.
13.5.1
During the construction phase, no
off-site marine water quality impact would be expected from the Project and
there would not be any marine-based works for the proposed works Subject
to the requirements in the effluent discharge licence to be issued under the
Water Pollution Control Ordinance, regular water quality monitoring may
be carried out at representative water discharge locations to ensure that
relevant water quality standard can be met, but this is not considered
necessary as no adverse construction water quality impact is expected if the
mitigation measures are implemented properly.
13.5.2
Weekly site audit should be carried out to check
the implementation status of the recommended mitigation measures for water
quality impact throughout the construction period.
13.5.3
The sewerage and stormwater system has been
designed and constructed to separate the sewage and uncontaminated surface
runoff completely. Provisions shall be made to collect the contaminated surface
runoff such as the use of interception system and oil and petrol interceptors.
As the Project area shall be serviced by public sewers, no unacceptable water
quality impact is anticipated.
13.5.4
In case when natural turf is adopted at the Main
Stadium or the Public Sports Ground, the operator shall control
pesticides as per Pesticides Ordinance (Cap. 133) and prepare a
Stormwater Re-use Management Plan to ascertain that stormwater is properly
re-used. The stormwater Re-use Management Plan will set out the proposed
surface run-off monitoring locations, monitoring frequency and parameters, as
well as the Event and Action Plan and mitigation measure, etc.
13.6.1
Based on the estimated sewage flow of the
Project, and the sewerage and sewage treatment capacity in Kai Tak Development
area, no adverse sewerage impact will be caused by the Project. No monitoring
or audit is proposed.
13.7.1
Construction waste includes Construction and
Demolition (C&D) materials from excavation, site formation and demolition, bentonite from piling works, chemical waste
from plant maintenance and general refuse. Chemical waste will be generated
from maintenance of equipment. No adverse construction waste impact is expected
if the mitigation measures are implemented properly.
13.7.2
The
Contractor should formulate waste management measures on waste minimization,
storage, handling and disposal in a Waste Management Plan as part of the
Environmental Management Plan in accordance with the Environment, Transport and
Works Bureau Technical Circular (Works) No. 19/2005. Weekly site audit
should be carried out to check the implementation status of the recommended
waste management measures throughout the construction period.
13.7.3
During the operational phase of the Project, no
adverse waste impact is expected if the mitigation measures are implemented
properly. No monitoring or audit is required.
13.8.1
The land contamination issues in the Project
Site have been reviewed and assessed. Basically, the land contamination
identified in the North Apron had been cleaned up and the site is considered
clean for the intended use. Also, there will be no use with potential land
contamination in the Project site. Environmental monitoring in relation
to land remediation is not required.
13.9.1
No site
of conservation importance was identified in the Study Area. All identified
habitats were considered to have either Low or Very Low ecological value. All
habitats and fauna species, including all recorded species of conservation
importance, are expected to be impacted indirectly by water quality, noise
and/or dust impacts during the construction phase. Nevertheless, with proper
implementation of mitigation measures, all indirect impact would only be
insignificant to minor. Implementation status and the effectiveness of these measures shall be
audited through regular site inspection during the construction phase.
13.9.2
In the
operational phase, indirect impact would only be induced by crowd noise and
traffic noise during major events. However, this will occur infrequently and
therefore the impact is considered acceptable. With proper implementation of
mitigation measures, residual impact is considered acceptable. No specific
monitoring and audit programme is required for terrestrial ecology during the
operation phase of the Project.
13.10.1
Environmental management and audit for landscape and
visual resources is recommended during the design, construction and operation
phases of the Project.
Design Phase
13.10.2
The landscape measures and
lighting mitigation measures proposed to mitigate the landscape, visual and
glare impacts of the scheme should be embodied into the detailed landscape and
engineering design specifications, drawings and contract documents. The design
phase EM&A requirements for landscape and visual resources comprise the
audit of detailed landscape works specifications to be prepared during the
detailed design stage together with ensuring that the design is sensitive to
landscape and visual impacts and that landscape resources are retained as far
as practicable. In the event of a non-conformity, the Event and Action Plan
provided in the EM&A Manual shall be followed.
Construction
& Operational Phases
13.10.3
Prior to commencement of the
main construction contract, a specialist landscape contractor should be
employed by the Project Proponent in order to facilitate the advance
preparation and relocation of any trees in conflict with the proposed works. A
specialist landscape sub-contractor should be employed by the works contractor
for the implementation of further soft landscape works and subsequent
maintenance operations during the establishment period.
13.10.4
All measures undertaken by
the works and landscape contractors shall be audited by a Registered Landscape
Architect, as a member of the Environmental Team (ET), on a regular basis to
ensure compliance with the intended aims of the measures. In the event of a
non-conformity, the Event and Action Plan provided in the EM&A Manual shall
be followed.
13.11.1
No
EM&A requirements are required during the construction and operation phases of the proposed works as
there are no adverse impacts on known sites of archaeological interest,
potential areas of archaeological interest or built heritage.