Azura-Edo Independent Power Plant Environmental Impact ... - IFC

Table 10.6
Decommissioning Phase: Environmental and Social Management Measures
Ref
#
Potential impact Desired
Outcome
Description of mitigation
Performance
Indicator
Monitoring
Timing/
Frequenc
y
Impleme
nted in
the
decommi
ssioning
phase ,
and to be
monitore
d
througho
ut and
past the
decommi
ssioning
phase
Responsibility
Estimated
Cost (USD)
4.1 The negative
ambient air
quality impacts
identified during
decommissionin
g activities are:
• Dust
emissions
building
demolition,
site levelling
and filling.
• The emissions
arising from
traffic.
• Site vehicle
emissions and
vehicles
accessing site
Minimise
health and
nuisance
impacts on
local
communities
• Apply liquid asphalt to prevent surface erosion: loosely
bonded coarse-grained surfaces: 1.4 l/ m2 or 3.6 l/ m2;
• Use binder material for erosion and dust control for long
term exposed surfaces;
• Use covered trucks for the transportation of materials
that release dust emissions;
• Regular cleaning of equipment , drains and roads to
avoid excessive build up of dirt and mud;
• Water suppression or dust extraction fitted to
construction equipment where possible;
• Spray surfaces prior to excavation and clearing;
• Speed limit on-site of 15 kph on unhardened roads and
surfaces;
• Avoid dropping material from heights;
• Do not release sulphur hexafluoride from the
transformers to the atmosphere and reclaimed for reuse,
if possible.
• Avoid heating bitumen with an open flame and avoid
overheating.
The IFC
Performance
Standards
The WHO
and EU
Emission
Standards
Nigerian
Emission
Standards
Dust
mitigation
programme
as part of the
Site Closure
and
Restoration
Plan
Azura Power
Cost for nonroutine
dust
suppression
measures
will be part
of normal
operations.