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|Title: ||Environmental & social impact assessment for the proposed construction of sewerage system in Maamigilli, Alifu Dhaalu Atoll, Maldives|
|Authors: ||Water Solutions|
|Keywords: ||Sewerage systems|
Legislative and regulatory considerations
Existing terrestrial environment
Existing climatic environment
Existing marine environment
Existing socio-economic environment
Environmental and social impact monitoring
Environmental and social impact assessments
|Issue Date: ||Nov-2016|
|Citation: ||Water solutions. (2016). Environmental & social impact assessment for the proposed construction of sewerage system in Maamigilli, Alifu Dhaalu Atoll, Maldives. Male': Maldives|
|Abstract: ||This EIA report is prepared for the construction of a sewerage system in the island of
Maamigilli Alifu Dhaalu Atoll. The project will be implemented by MWSC.
The proposed project aims to establish a sewerage system where household wastewater gets
collected in to a sewer network and gets discharged into the open ocean via an outfall.
Surveys and assessments were done in Maamigilli to identify the best possible option and
suitable system including evaluating alternatives to the project.
The proposed system will ensure that the groundwater of the island does not get
contaminated through improper sanitation systems. It will also ensure that the groundwater
and the surrounding marine environment will improve in terms of environmental quality
and will ensure pollution from sewage does not occur. These measures are expected to bring
multiple positive impacts to the health of the people other than improving the environmental
Various alternatives to the proposed system were also studied. One of the options identified
include treatment of sewage and the use of vacuum systems. Based on the assessment, these
alternatives were assessed to identify their potential application in Maamigilli against the
proposed system. Advantages and disadvantages of these options have also been discussed
in the report.
The island‟s existing sanitation is developed on traditional septic tank system. All the
houses have toilet facilities which have onsite septic tanks. The ground water of the island
is been used for toilet flushing and for purposes other than drinking. The main portable
water is from the private water tanks in individual houses or from the community water
plant. Desalination plant is operated in the island by Villa Shipping and Trading Company.
The assessment reveals that the project can be implemented without significant impact on
the natural environment of the island.
The impact area due to the implementation of the project would be the loss of vegetation
from the construction of the pump station, excavation and laying of the sewer network and
the reef environment due to the construction of the outfall. These impacts would be
unavoidable as trees have to be cleared from the site before construction can begin for the
pump station. The outfall needs to be properly anchored to hard substrate of the reef.
Therefore, the most significant direct impacts are going to be resulting from the loss of flora
and fauna from the area where the pump station as well on the marine environment where
outfall will be constructed. The Maamigilli Island Council will provide compensation to the
owners of the coconut palms or trees that need to be removed from the land allocated for
The proponent and contractor should avoid any project activity that will directly impact the
MPA of Maamigilli. Waste water outfall should be monitored in regular basis to study the
The proponent of the project shall develop necessary plans and implement the mitigation
measures in association with relevant agencies to mitigate the predicted impacts.
Several alternatives for the proposed project have been identified and they are discussed in
detail. For this project, proposed concept is the best option. The current concept is designed
after an initial survey by MWSC. Outfall location is proposed after the stakeholder
consultation and EIA survey.
All activities of the project will be closely monitored by Maamigilli Island Council. A
monitoring plan is developed for this project. It is very important to adhere this monitoring
program to study whether the projected impacts.
In light of this assessment, the proposed project has been found to have more positive than
negative impacts, both environmentally and socially. It is crucial for the client to manage
the project in consultation and assistance with other stakeholders if the environmental
impacts are to be minimized.|
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