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Membership of the NT Environment Protection Authority

Chair of the NT EPA, Dr William Freeland

Dr William FreelandDr William Freeland gained his Masters degree in Science at the University of Queensland before obtaining a PhD in Zoology from the University of Michigan. Prior to his appointment, Dr Freeland was an environmental consultant working with business and industry in environmental management in the Northern Territory. He was a former Director of the Parks and Wildlife Commission of the Northern Territory and Director of Conservation Strategy with the Queensland government.

Dr Freeland has spent 30 years of his career in the Northern Territory. He has considerable knowledge and understanding of environmental issues in the Territory. Dr Freeland has over 20 years’ experience in research and management roles with the Parks and Wildlife Commission of the Northern Territory including working with the community. His experience in the Territory has given Dr Freeland an extensive understanding and appreciation of the issues relevant to regional areas and the indigenous community.

He has represented the Territory on various national environmental groups such as the National Standing Committee for Water, Land and Biodiversity, Natural Resource Management Ministerial Council, and the Standing Committee to the Australian and New Zealand Environment Council.

During his career, Dr Freeland has published over fifty scientific papers and consultancy work in the fields of conservation management, environmental impacts, waste management, ecologically sustainable development and tourism development. Dr Freeland brings a breadth of experience to the position of Chair of the Northern Territory Environment Protection Authority.


Professor David John Williams

Professor David John WilliamsAfter obtaining his initial degree in Civil Engineering from Monash University, Professor David Williams obtained his doctorate in Soil Mechanics at the University of Cambridge.

Professor Williams is currently the Director of the Geotechnical Engineering Centre within the School of Civil Engineering at The University of Queensland.  David has been based at The University of Queensland for most of his 30-year career, and enjoys an international reputation for applying geotechnical principles to mine waste disposal and mined landform design.  He has researched and published extensively in this field and is highly sought for his advice and for peer reviews of operating mines within Australasia and worldwide.



Dr John Colin Chapman

Dr John Colin ChapmanDr John Chapman completed his PhD in Organic Chemistry at the University of Sydney and subsequently obtained a diploma in environmental studies at the Macquarie University.

Dr Chapman brings over 30 years experience in the field of ecotoxicology having worked in the Office of Environment and Heritage and its predecessors (formerly known as the State Pollution Control Commission, then Environment Protection Authority to Department of Environment and Conservation, to more recently the Office of Environment and Heritage). During this time, he has been involved in research, supervision and management and has produced numerous reports and advice in the area of chemicals and the impacts of contamination on the environment.



Ms Janice van Reyk

Dr John Colin Chapman Ms Janice van Reyk is an experienced non-executive director on a number of boards in the infrastructure and utilities sector. She has a strong commercial background as a senior executive in ASX listed industrial companies combined with environmental experience.

Ms van Reyk’s environmental experience includes advising on a range of socio-economic assessments, stakeholder consultations, environmental and remediation issues. Together with her executive management experience she brings great depth to the NT EPA.

Ms van Reyk is a Fellow of the Australian Institute of Company Directors. She has a Master of Environment specialising in water, energy and urban issues; a Master of Commerce specialising in corporate finance, economics and accounting; and a Bachelor of Arts and a Bachelor of Laws 


Dr Ian Geoffrey Wallis

Dr Ian WallisDr Ian Wallis is an environmental engineer who brings 30 years experience as an environmental engineer providing advice to water and sewerage authorities and industries.  He has been a registered environmental auditor for 17 years providing advice in the form of environmental studies, audits, investigations and inputs into environmental impact assessments. 

Dr Wallis conducted postgraduate research at Monash University in sediment transport, the dispersion of wastes in estuarine and ocean waters, and the social and technical issue involved in managing pollution, and was a researcher at various Universities and laboratories in UK and USA.

He has extensive experience in environmental assessments, air quality, water quality and oceanographic studies, and is recognised as one of Australia’s experts in these fields.  Dr Wallis was a member of the Expert Panels on Desalination and on dredging in Darwin Harbour.


Chair of the NT Planning Commission, Mr Gary Nairn

Mr Gary NairnThe Hon Gary Nairn is the Chairman of the Northern Territory Planning Commission.

Mr Nairn has a background in land surveying and mapping.  He currently operates his own consultancy business specialising in business development, spatial information and property matters.

He lived in the Northern Territory for 15 years during the 1980s and 1990s.  During this time, he was involved in the planning and design of key developments including Bayview, Palmerston, Cullen Bay and Katherine East.

Mr Nairn served in the Australian Parliament as the Parliamentary Secretary to Prime Minister John Howard from 2004 to 2006, with responsibility for water reform and the Science, Engineering and Technology Unit.  He was the Special Minister of State from 2006 to 2007.

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