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

e generated, such as used lubricating and hydraulic oils (from vehicles and
machinery), filters: air and oil filters, batteries (mainly lead-acid batteries) and
washout water from concrete mixing plant. In addition, general refuse,
similar to domestic waste, will be generated by the construction workforce at
the work site, comprising food residues, paper, used bottles and cans,
packaging and broken furniture.
Sewage and wastewater will be generated by the sanitation facilities provided
for the construction workforce. Septic tanks will be installed and used for the
treatment of sewage generated at the construction site.
Incorrect disposal of these wastes could result in leaching and the
contamination of soil and water resources, which could have secondary
impacts on local community health, and restrict the use of the water obtained
from these sources. The use of existing dumpsites could worsen existing
environmental problems at these sites, namely windblown litter, vermin and
other disease vectors as well as potential health impacts from the direct
contact of scavengers with the waste. In addition, there are nuisance impacts
related to the dust creation and impacts from the transport of rubble to
disposal sites.
Impact Significance
The scale of the potential impact of the incorrect disposal of wastes generated
during construction is regional, as the impacts of disposal would extend
beyond the Project site and immediate vicinity. The impacts are deemed to be
long-term as the impacts will be felt after the end of the construction phase.
The magnitude is therefore considered to be moderate.
The sensitivity of the receptors is considered to be moderate.
The overall impacts of waste creation, handling and disposal during
construction are therefore considered to be of moderate significance prior to
mitigation.
7.8.2 Impact Description and Significance: Operational
Impact Description
During the operational phase of the Project there will be a number of wastes
generated from the Project processes (process wastes) and a range of other
wastes from the transport operations and administration associated with the
Project. The main process waste streams created during the operation of the
proposed power plant will comprise air intake filters, used lubricating oils
from plant machinery and vehicles, used hydraulic oils, sludge from the
wastewater treatment plant, process sludge, separated oil sludge from
oil/water separators, oily rags and used chemical containers.
AZURA EDO IPP
7-49
DRAFT EIA REPORT