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|Title: ||Fourth addendum for the environmental impact assessment report for the reclamation and expansion at Ibrahim Nasir International Airport|
|Authors: ||Land and Marine Environmental Resources Group|
|Keywords: ||Airport development projects|
Existing physical environment
Existing terrestrial environment
Existing marine environment
Environmental monitoring program
Environmental impact assessments
|Issue Date: ||Oct-2016|
|Citation: ||Land and Marine Environmental Resources Group. (2016). Fourth addendum for the environmental impact assessment report for the reclamation and expansion at Ibrahim Nasir International Airport. Male': Maldives|
|Abstract: ||1.1 Background
The non-technical summary outlines the findings of the Addendum 4 to the Environmental
lmpact Assessment for Reclamation and Expansion at lbrahim Nasir lnternational Airport
(INIA), Hulhulhe, Kaafu Atoll, which involves construction of a temporary water production
facility at the Hulhule for the period of the construction works of the INIA expansion project,
The proponent and contractor of this project is Male’ Airports Company Limited (MACL),
main contractor is Chinese Beijing Urban Construction Group (BUCG) and subcontractor for
RO plant, borehole and storage tank construction is Static Company Pvt Ltd.
1.2 Project Detail
The proposed project involves construction of a temporary water production facility at
Ibrahim Nasir International Airport under the Reclamation and Expansion at lbrahim Nasir
lnternational Airport (INIA) project. The water production facility will include RO plant
house (housing two RO plants of 250ton/day, two boreholes, settlement tanks, 2 water
storage tanks of capacity 500tons each, brine discharge line and also pipeline connecting
temporary facility to existing MACL water grid near the project temporary site). This
temporary facility will be located at the south eastern side of Hulhule. The diameter of the
boreholes is 8 inch while the depth is 40m. Water extracted through the borehole will be used
as feed water for the 2 RO plants (250ton/day).
1.3 Key impacts, mitigation measures and alternatives
Impacts on the environment from various activities of the water production facility, mainly
the borehole construction component and its operation have been identified through
interviews with the proponent, field data collection and surveys as well as based on past
experience in similar development projects.
Possible impacts arising from the project have been analysed with the aid of a Leopold
Matrix. In any development project major direct impacts to the environment (either shortterm
or long-term) occur mainly during the construction phase. Potential direct or indirect
impacts on the environment (on land and reef system) from the proposed works are limited to
a relatively small number of activities, which include:
Groundwater contamination/salinisation due to extraction of groundwater during
and after drilling to clear out the chemicals used during the drilling process as a
hardening agent for the walls of the borehole. This is foreseen to be minor to
insignificant due to moderate extraction rates.
Groundwater contamination due to leakage of drill slurry from the slurry collection
Extraction of groundwater during operation phase which is foreseen to be
insignificant due to moderate drilling rates.
The severity of impacts is predicted by reviewing the design plans and construction
methodologies. Mitigation measures are formulated in light of the information revealed by
the project engineers.
Mitigation measures are discussed for the construction stage of the project. During the
construction stage it is important to take measures to minimize impacts on the degradation of
groundwater quality. Method of drilling also has to be taken into account to minimise impact.
A method that has the least impact on terrestrial or marine environment has to be utilized.
Considering the alternatives for the project (alternative to setting up a temporary water
production system) analysis of alternatives shows that the proposed methods and locations
are the most feasible for the project. No project scenario was also considered as an
alternative. However, given that the benefits greatly outweigh the negative impacts, this was
not seen to be a feasible option.|
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