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

Table 7.18
Summary of Impact Significance Pre-mitigation
Phase Impact Significance (premitigation)
Construction Clearing of vegetation and habitat,
disturbance of fauna due to noise, dust,
traffic and potential contamination of soil
and water
Major Negative
Operation Disturbance of fauna due to noise, dust,
traffic
Decommissioning Disturbance of fauna due to noise, dust,
traffic and potential contamination of soil
and water
Minor-Moderate Negative
Moderate Negative
7.8 WASTE
The potential impacts of wastes generated during the construction, operation
and decommissioning of the Project have been assessed based on the general
environmental significance criteria outlined in Section 7.2 and the EIA team’s
experience from similar power generation projects. Reference has also been
made to international standards and guidelines such as the World Bank
Group Environmental, Health and Safety Guidelines for Thermal Power
Plants.
7.8.1 Impact Description and Significance: Construction
Impact Description
Waste streams generated during construction of the Project are likely to
consist of the following:
• excavation spoil;
• general construction waste;
• general waste; and
• sewage and wastewater.
By far the largest quantity of waste arising during construction will be spoil
generated from the excavation of the terraces to create level platforms for the
installation of the major items of plant and equipment and from the burial of
the pipeline spur. The spoil which is excavated in creating the platforms will,
wherever possible, be re-profiled around the site or re-used for landscaping.
The surplus of excavated material will be disposed offsite.
General construction waste generated comprises a variety of non-hazardous
materials including wood (used timber), excess concrete, vehicle tyres, paints,
vehicle batteries, fluorescent light bulbs and contaminated containers (old
paint tins, etc). Waste will also include packaging waste such as wooden
pallets, plastic, paper, and cardboard from the delivery of the equipment and
machinery to be used by the Project. Small amounts of hazardous wastes will
AZURA EDO IPP
7-48
DRAFT EIA REPORT