Mervyn Keegan
Mervyn KeeganDirector
Mervyn Keegan is the Director of AONA Environmental Consulting Ltd., an independent consultancy specialising in Environmental Impact Assessment and Licensing.

Mervyn has over 20 years of environmental consultancy experience and his main areas of professional expertise are in Acoustics & Noise Control and Air Quality & Odour consultancy, including impact assessment and mitigation design.

Mervyn is a full member of the Institute of Acoustics.

Mervyn holds a Diploma in Environmental Science (IT Sligo 1995), a Bachelor of Science Degree in Applied Biology (Coventry University, 1996), a Master of Science Degree in Environmental Science (Queens University Belfast, 1998) and a Post Graduate Diploma in Acoustics and Noise Control (University of Ulster).

Mervyn has previously worked as an Environmental Consultant with RPS Ireland and WYG.

Mervyn has produced Noise, Air Quality & Odour Impact Assessment reports to assess the impacts of a range of development types including road schemes, residential developments, industrial developments, quarries and mines and a range of renewable energy developments including wind energy developments among others.

Mervyn has appeared as an expert witness at oral hearings, public inquiries and legal proceedings.

Olivia Maguire
Olivia MaguireSenior Environmental Consultant
Olivia Maguire is a Senior Environmental Consultant with AONA Environmental Consulting Ltd., an independent consultancy specialising in Environmental Impact Assessment and Licensing.

Olivia has over 15 years of environmental consultancy experience.

Olivia is a member of the Institute of Environmental Management & Assessment.

Olivia holds a Bachelor of Science Honours Degree in Geography (Queens University, 1997), a Master of Science Degree in Environmental Science (Queens University Belfast, 1998) and a Bachelor of Science Degree in Occupational Safety and Health (With Distinction) from IT Sligo (2018).

Olivia has previously worked with the Northern Ireland Environment Agency and Marenco Environmental Consultants as well as a range of freelance ecologist roles on public sector projects.

Olivia’s role involves the delivery of a wide range of environmental and occupational health & safety consultancy services to public and private sector clients in the following areas;
• Occupational Health Assessments including noise at work and indoor air quality surveys.
• Appropriate Assessment in accordance with the Habitats Directive.
• Environmental Noise & Air Quality Surveys.
• Air Dispersion Modelling.
• Environmental Permitting Applications and Compliance Monitoring.

Our Clients Say

“Mervyn Keegan and the team at AONA Environmental Consulting has assisted us throughout the development of our projects at Evermore Renewable Energy Ltd. from planning through to operational phase since our inception in 2008.  He has provided us with excellent professional guidance in the development of our flagship projects to date. These include the operational Evermore Energy Ltd. 17 MW wood-fired CHP plant at Derry Port and the proposed Belfast Power Ltd 480 MW Combined Cycle Gas Turbine (CCGT) in Belfast Harbour Estate, Belfast, Northern Ireland.  AONA Environmentals capabilities range from environmental to occupational health and safety consultancy.  We have always found Mervyn to be personable and professional in all dealings with our project partners and relevant authorities when working on our behalf”.
Ciaran Devine – Director, Evermore Energy Ltd.
“We have worked with Mervyn Keegan on a number of large-scale development proposals and found his contribution to be invaluable.  His ability to provide robust reports within a timely manner greatly assists in delivering high quality planning applications.  AONA Environmental remains our number one point of contact when we need specialist environmental advice for major development proposals”. Gravis Planning is a market-leading town planning and engagement consultancy active throughout the UK and Ireland.
Chris Bryson, Director, Gravis Planning.
“Assessing the potential noise impact from a single wind turbine is a key consideration during the journey of achieving planning permission.  Mervyn Keegan is a proactive, meticulous and efficient noise consultant that produces high quality noise impact assessments to the requirements of the local Environmental Health Departments.  His expertise was key to the success of Simple Power achieving planning permission for numerous single wind turbine projects through Northern Ireland.”
Stuart Clarke, Former Planning Manager at Simple Power and now Planning Consultant to Foresight Group.
“Quarryplan has consistently worked with Mervyn Keegan on several projects over the past 15 years.  The noise and air quality assessment services provided by Mervyn and his team have helped to successfully deliver numerous mineral and wind energy projects for our clients in the Republic of Ireland, Northern Ireland and across the UK. They provide competent professional assessments and reports, and what’s more they provide them on time.  Mervyn also provides highly regarded and confident affidavits and expert witness”. 
Gareth McCallion – Principal Planner, Quarryplan Ltd.
“The AONA team are great at what they do, efficient and pro-active.  Merv and the team are like an extension of our own team providing support and expertise when needed to consistently high standards which is why we don’t go anywhere else.  Would we recommend them?  Very much so”.
Chris Williams, Director, Green Life Products Ltd. t/a Glp Ecotech
“AONA Environmental Consulting have completed several noise and air quality impact assessments for water services projects managed by Nicholas O’Dwyer Limited.  The assessments were undertaken in a professional manner and addressed the requirements of the scope.  AONA Environmental also demonstrated flexibility and adaptability to amendments in the scope and in the delivery of the services”.
Richard Church, Environment Lead, Nicholas O’Dwyer