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

Table 10.4
Construction Phase: Environmental and Social Management Measures
Ref
#
Potential
impact
Desired
Outcome
Description of mitigation
Performance
Indicator
Monitoring
Timing/
Frequency
Responsibility Estimated
Cost (USD)
2.1 The anticipated
negative
ambient air
quality impacts
are:
• Dust
emissions;
and
• Vehicle
Emissions.
Minimise
deterioration
of current
ambient air
quality by
minimising
dust
emissions.
• 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; and
• Avoid dropping material from heights.
• Avoid heating bitumen with an open flame and avoid
overheating.
The IFC
Performance
Standards
The WHO
and EU
Emission
Standards
Nigerian
Emission
Standards
Visual
inspection
and
photographic
record
Daily
EHS
Coordinator
Azura Power
Part of HSE
Coordinator’
s duties
2.2 Noise impacts
from general
construction
noise
Minimise
noise
nuisance to
sensitive
receptors
• Develop a detailed plan that relates to noise control for
relevant work practices and discuss this with construction
staff during health & safety briefings;
• Avoid dropping materials from height, where practicable;
• Avoid metal-to-metal contact on equipment;
• Avoid mobile plant clustering near residences and other
sensitive land uses;
• Ensure periods of respite are provided in the case of
unavoidable maximum noise level events;
• Inform all potentially impacted residents of the nature of
works to be carried out, the expected noise levels and
duration, as well as providing the contact details of the
CLO;
• Train construction staff on noise control plan during health
& safety briefings;
• Enforce rest periods for unavoidable maximum noise level
events;
• Select ‘low noise’ equipment, or methods of work;
Noise at
sensitive
receptors to
not exceed
Nigerian and
WHO limits
Noise
monitoring at
sensitive
receptors
Weekly
HSE
Coordinator,
Azura Power
Cost
associated
with monthly
noise
monitoring
(approx 500
USD)
No other
costs
assuming
that further
noise
reduction
controls are
not needed