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

3.2.7 Power Plant Water Supply and Consumption
Plant water supply to the site will be from borehole water piped to the site
and stored in the raw water storage tank located adjacent to the planned
steam turbine generator building. The raw water storage tank will have a
capacity of 1,200 m 3 which will be sufficient for water storage for a few days in
case of disturbance to the raw water supply.
A small water treatment plant will be required for the Project to supply
process water for the washing of the gas turbine compressor, for the closed
circuit cooling system and general service water to the plant and potable
water to the office buildings. In addition two fire/service water storage tanks
with a capacity of 700m 3 each will be installed with a 300m 3 fire water reserve.
The power plant will require approximately 1000 m 3 of water from the
boreholes per day.
3.2.8 Hazardous Materials
Approximately 40 m 3 of diesel will be stored onsite for black starts. This
volume is equivalent to approximately 24 h of operation. Diesel will be stored
in a 40 m 3 tank with a surrounding bund which will have a capacity of at least
44 m 3. The diesel will be piped from the storage tank to the black start units.
3.2.9 Transport and Traffic
The existing road currently leading from the main dual carriageway (Benin
City Bypass) to the Project site will be used as the primary access route to the
site and is tarred and in good condition.
During construction, an estimate of 20 to 30 Project vehicles will use this road
daily. A maximum of ten Project vehicles will use this road daily during
operation. The peak number of vehicle movements during both construction
and operation is estimated at between 50 to 100 concrete mixers per day.
Azura Power will liaise with the Edo State government to repair any sections
of the road that may be damaged during construction.
Traffic levels will also peak during the annual shutdowns and periods of
major maintenance. The maintenance period is likely to be two weeks in most
years, with a major maintenance every six years which is estimated to last
around six weeks.
Onsite Traffic
The Project currently has one 4x4 vehicle and is anticipated to require one
light truck (7.5 tonne), two pick up trucks, a fork lift truck and three 4X4
vehicles, which will operate onsite and for use offsite by Project staff. The
intention is that all vehicles, new and old will be serviced and refuelled at an
off site public service station. No refuelling or vehicle maintenance will take
place onsite.
AZURA EDO IPP
3-9
DRAFT EIA REPORT