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Environmental Impact Assessment (EIA)

An Environmental Impact Assessment (EIA) is an assessment of the likely influence that a project may have on the environment. The purpose of the assessment is to ensure that decision-makers consider environmental impacts before deciding whether to proceed with projects.

Our expertise in the main EIA disciplines and our strategic partnerships enables us to efficiently project manage and coordinate the EIA process, including initial screening, scoping, alternatives evaluation, Environmental Impact Statement (EIS) preparation, statutory consultation and stakeholder engagement. We are also routinely expert witnesses at public enquires/oral hearings.   

With our partners, we have the expertise to carry out the full range of EIA technical assessments required to be assessed including Ecology (Terrestrial/Aquatic/Marine), Hydrology, Hydrogeology, Soils and Geology, Landscape and Visual Assessment, Traffic, Archaeology and Cultural Heritage, Human Beings, Air and Climate, Noise and Vibration and Socio-Economic assessments.

Strategic Environmental Assessment (SEA)

The Strategic Environmental Assessment (SEA) Directive applies to a wide range of public plans and programmes (e.g. land use, energy, waste).  An SEA must be carried out on these plans and programmes before they can be adopted.

Our team are highly experienced in all aspects of the SEA process including Screening, Scoping, Assessment of Alternatives, Development of Mitigation Measures, Preparation of the SEA Environmental Report, Statutory Consultation, Preparation of the SEA Statement and Monitoring.


Recent Project(s)

River Barrow (Srowland, Athy) Water Treatment Plant and Water Transmission Pipelines, Co. Kildare, Ireland – Environmental Impact Assessment

The Project delivers 40,000 cubic metres of water each day to South Kildare


Water Services Strategic Plan and Environmental Assessments (SEA & AA), Ireland

Nicholas O'Dwyer Ltd. are currently preparing the Water Services Strategic Plan on behalf of Irish Water.  This high level Plan defines Irish Water's strategic objectives in the delivery of water and wastewater services over the next 25 years.



Cróna Sheehan

+353 1 296 9001