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|Title: ||Environmental impact assessment for the proposed project construction and establishment of sewerage system at N. Holhudhoo|
|Authors: ||CDE Consulting|
|Keywords: ||Sewerage systems|
Legislative and regulatory considerations
Existing physical environment
Existing biological environment
Existing socio-economic environment
Environmental management plan
Environmental monitoring plan
Environmental impact assessments
|Issue Date: ||Feb-2014|
|Citation: ||CDE Consulting. (2014). Environmental impact assessment for the proposed project construction and establishment of sewerage system at N. Holhudhoo. Male': Maldives|
|Abstract: ||The purpose of this document is to fulfil the requirements to get necessary environmental
clearance from the Environmental Protection Agency to carry out the proposed construction and
establishment of sewerage project in Holhudhoo, Noonu Atoll. The proponent of this project is
Male Water and Sewerage Company Pvt. Ltd.
The main rationale for the project is to facilitate improvement in the health and wellbeing and
enhance the quality of services and quality of life of residents at N. Holhudhoo by establishing a
proper sewerage system.
This project comprises of establishing sanitation facilities in Noonu atoll Holhudhoo through
design and build basis for sewerage collection network, sewerage pump stations and sea outfall
pumping station and allied works.
All project activities will be in conformance to the laws and regulations of the Maldives, and
relevant international conventions that Maldives is party to. The key laws and regulations
applicable to this project are: Environmental Protection and Preservation Act and Environmental
Impact Assessment Regulation 2012 and The Dewatering Regulation.
Significant impacts during construction phase of the project are mainly construction waste
disposal and installation of pipelines during construction stage. In the operation stage significant
impacts are from power consumption and contribution to GHG emissions and impact of raw
sewage effluent on the marine environment. Most of these impacts can be minimized with
proper mitigation measures recommended in the report. The existing environment of the
proposed outfall location site represents an altered environment. The dominant benthic cover in
the lagoon areas close to the shore is sand, pavement and rubble. Live coral cover and fish
abundance was low in the site.
The main mitigation measures include carrying out construction activities during low tide hours
and calm weather, to reduce sediment dispersal and avoid adverse sedimentation impacts. The
work schedule and duration will also be planned to avoid disruptive weather conditions,
especially for excavation and dewatering and complete construction activities in the shortest
The alternatives evaluated for the project are “No project” option, alternative sewerage systems,
alternative outfall location, alternative methods for installation of outfall pipeline and raw
sewage effluent against treated effluent.
The monitoring plan is designed to assess any changes to the coral reef environment of the
island, coastal changes groundwater quality and marine water quality as these are the key areas
that will be impacted from this project.
The management plan for this project is designed to produce a framework for anticipated
impacts, including practicable and achievable performance requirements and systems for
monitoring, reporting and implementing corrective actions. In addition provide evidence of
compliance to legislation, policies, guidelines and requirements of relevant authorities.
In conclusion, this project has been designed in conformance to the relevant laws and regulations
of Maldives. The most significant impacts are expected to be short-term impacts on the marine
water quality, coral reef and lagoon bottom habitats. However, mitigation measures have been
proposed to adequately minimise these significant impacts.|
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