Executive Committee

The Ireland Brownfield Network Executive Committee comprises ten environmental professionals from academia and professional services throughout Ireland.
In April 2020, a new exectuive committee was elected:

Christopher Newton (Chairperson)

Christopher Newtown


Sector:Consultancy Services

Contact:50 Ringsend Road Dublin Ireland D04 T6X0

Christopher is a Senior Hydrogeologist and Chartered Geologist with over 11 years' experience in contaminated land and hydrogeology in Ireland and the UK. Christopher sits in the Ground Engineering group in the Dublin office of Arup. He is on the IGI Register of Professional Qualified Geoscientists / Competent (in respect of environmental risk assessment for regulated and unregulated waste disposal and contaminated land) and has recently completed a diploma in Planning and Environmental Law at King's Inns, Dublin. His project experience includes assessments of the impacts of land contamination on human health, groundwater and surface water, ground gas risk assessment, quantitative hydrogeological risk assessment of contaminated land and landfills (groundwater pollutant modelling), asbestos in soil, design of site investigations for land contamination assessments, waste classification, reviewing reports for private and state bodies and acting as an expert witness in land contamination matters.

Dr Siobhan Cox (Treasurer)

Ireland Brownfield Network

Organisation:Queen’s University Belfast


Contact:School of Natural and Built Environment, Queen's University Belfast, Belfast, BT9 5AG

Siobhan is a Senior Lecturer at Queen's University Belfast. Her research interests include risk assessment of contaminated sites including human health risk assessment, the use of bioaccessibility testing, and differentiating between geogenic and anthropogenic sources of contamination. Dr. Cox has also considerable industrial experience of leading the assessment and management of contaminated land, successfully delivering multi-million pound construction projects as a contaminated land consultant, before entering academia in 2003. She is currently a project leader on the €3.7M REMEDIATE Marie Curie ETN and a work package leader on the £550k InnovateUK funded LowCoPreCon project.

Visit Siobhan's Linkedin profile here, and QUB profile here.

Anne Marie Casey (Membership Coordinator)

Anne-Marie Casey

Organisation:ESB International

Sector:Environmental Specialist

Contact:ESB International, One Dublin Airport Central, Dublin Airport, Cloghran, Co. Dublin

Anne Marie Casey is a Senior Specialist with ESB International with over 17 years' experience having worked as an environmental specialist in Ireland, Northern Ireland, UK, Azerbaijan and America. Anne Marie is a Chartered Environmentalist and a Chartered Scientist in the UK and Ireland (CIWEM). She holds an honours B.Sc. (Geol) degree from the UCC, M.Sc. in Environmental Engineering from Trinity College Dublin. Her areas of expertise include waste management and environmental liability assessment in relation to soil, ground-gas, air quality, construction noise, surface water and groundwater risk assessment and remediation.

Owen Williams (Event Coordinator)

 Ireland Brownfield Network

Organisation:Brownfield Development Services

Sector:Independent Advisory Service

Contact:55-59 Adealide Street, Belfast, BT2 8FE

Owen is a freelance environmental advisor working with clients who acquire and develop brownfield sites throughout Ireland. Owen is the founding Chair of the Ireland Brownfield Network and is a former environmental insurance broker, consultant and regulator. His 20 years' experience and expertise in quantifying and managing environmental liabilities has earned him a reputation as being a pragmatic problem solver dedicated to the appropriate and sustainable redevelopment of brownfield sites

Visit Owens's Linkedin Page here.

Dr Rory Doherty (Liaison Officer)

Rory Doherty

Organisation:Queen's University Belfast


Contact:Environmental Engineering Research Centre School of Planning, Architecture and Civil Engineering, Queen's University Belfast, Belfast, BT9 5AG

Rory is an academic that applies chemistry, geophysics and microbiology to environmental problems to produce viable engineering solutions. His interests are: Sustainable Remediation of Pollution, Identification and apportionment of Potentially Toxic Elements, Restoration of Peatlands, The Circular Economy, Reuse & Recovery of Hazardous & Valuable Materials. Rory is Lead coordinator and scientist in chief of the EU Marie Sk?odowska-Curie Innovative Training Network REMEDIATE (2014 -2018) Total Project Value €4 million which has 12 PhDs across 6 Beneficiaries with over 15 project partners from industry and the public sector.

Olivia Holmes (Policy Coordinator)

Olivia Holmes

Organisation:Malachy Walsh Partners

Sector:Environmental Consultancy

Contact:Park House, Mahon Technology Park, Bessboro Road, Blackrock, Cork

Olivia is a Senior Environmental Consultant with over fifteen years' experience in Environmental Engineering focussing primarily on contaminated land assessment and remediation, waste management and Environmental Impact Assessment (EIA) and planning. Prior to joining Arup and Malachy Walsh and Partners, Olivia gained experience working in local authorities in Ireland. Olivia is recognised by Engineers Ireland as being suitably qualified and experienced to carry out risk-based assessment certifications of historic landfill sites and contaminated land sites.

Dr. Olivia Hall (Secretary)

Olivia Hall

Organisation:CHC Environmental Services

Sector:Environmental Consultancy

Contact:Bolacreen, Ferns, Co. Wexford, Ireland

Olivia is Managing Director for CHC Environmental Solutions Ltd - an independent environmental consultancy specialising in the areas of contaminated land, risk assessment, remediation, and environmental liability management working on sites across Ireland and the UK. Olivia has worked in the environmental industry for 16 years. Prior to setting up her own business, Olivia worked as remediation design engineer, working on over 2,500 sites across Europe, the Middle East and the US. Olivia holds a PhD in the use of stable isotopes as a forensic tool to evaluate the fate and transport of chlorinated solvents in the environment. Olivia also holds an MSc in Environmental Engineering and a BSc in Environmental Science. Olivia is a a Chartered Environmentalist (CEnv) with the Society for the Environment.

Claire Clifford (Technincal Advisor)

Claire Clifford

Organisation:Enviroguide Consulting

Sector:Environmental Consultancy

Contact:Unit 3D, Core C, Block 71, The Plaza, Park West Dublin 12

Claire Clifford is Technical Director with Enviroguide Consulting where she manages the contaminated land group. Claire's experience includes work in Ireland, UK and Canada on a range of brownfield sites for clients in the industrial, property development, petroleum, pharmaceutical and waste sectors. Her areas of expertise include contaminated land and hydrogeology assessments in particular human health and environmental risk assessments and remediation of brownfield sites as well as site investigation, waste classification and project management. Claire has a BSc in Geology from the University College Cork and a MSc in Environmental Sciences from Trinity College Dublin. Claire is a Professional Geologist (PGeo) with the Institute of Geologists of Ireland (IGI) and is listed on the IGI Register of Competent Persons for Unregulated Waste Disposal/Contaminated Land Assessments.

Visit Claire's Linkedin Page here.

Dr Chaosheng Zhang (Academic Advisor)

Ireland Brownfield Network

Organisation:National University of Ireland, Galway


Contact:Dr. Chaosheng Zhang Head, GIS Centre, Ryan Institute and School of Geography and Archaeology National University of Ireland, Galway, Ireland

Dr. Chaosheng Zhang is head of GIS Centre, Ryan Institute, National University of Ireland, Galway. His academic background covers both GIS and environmental geochemistry, with his research focusing on spatial analyses of environmental variables and geo-statistical techniques. He has published more than 80 peer-reviewed papers and has strong international research experience in China, Sweden, USA, Australia, Jamaica and Ireland. He is Chair and organizer of two internationally-leading conferences on environment and health.

2012 Inaugural Committee Members were:

  • Owen Williams
  • Dr Rory Doherty
  • Dr Siobhan Cox
  • Andrew Ryan
  • Dr Aoife Shields
  • Dr Chaosheng Zhang
  • Mairead Glennon
  • Aidan Tierney