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

would be experienced on the site and adjacent areas. The impact would be
long-term as the impact will last for the lifetime of the Project. The impact
magnitude is therefore considered to be moderate.
Since the sensitivity of the receptors is judged to be low, the overall impact is
therefore assessed to be of minor significance prior to mitigation.
Potential Over-exploitation of Groundwater Resources
The impacts resulting from the Project’s water use during operation is likely to
be negative and experienced at a local scale, on the Project site and adjacent
areas. The impact is considered to be long-term and the magnitude is
therefore assessed to be low-moderate.
Since the sensitivity of the aquifer for water availability is low, the significance
of the potential impact is considered to be minor prior to mitigation.
7.6.3 Impact Description and Significance: Decommissioning
Impact Description
The decommissioning will include decommissioning, demolition and removal
of fuel storage tanks and associated pipe work, dismantling of effluent
treatment plant, removal of diesel engines and transformers and the removal
of piles and foundations. During decommissioning it will also be necessary to
carefully decommission the groundwater abstraction boreholes, or if they are
to remain in continued use for these to be capped to contain a potential
pathway for contaminants.
As such, the potential negative impacts to water resources are likely to be very
similar to those considered during the construction phase of the Project and
will include potential contamination from leaching from demolition and
incorrect disposal of waste generated and chemicals (including transformer
oil, residual sludge from the wastewater treatment works and diesel) and/ or
incidents and spills.
Impact Significance
The potential impacts on water resources during decommissioning will be
negative, local in scale and short-term as they would be experienced only for a
limited period, during decommissioning. The impact magnitude is therefore
considered to be low.
The sensitivity of the water resources is considered to be moderate and the
impact significance is therefore assessed to be minor prior to mitigation.
AZURA EDO IPP
7-43
DRAFT EIA REPORT