The essence of Healthy Land and Water is its people. We are a passionate team of leaders, scientists and engineers dedicated to improving and protecting South East Queensland’s environment.

Board of Directors

Stephen Robertson


Stephen Robertson is a consulting expert in environmental sustainability and natural resource management and was named inaugural chairman of Healthy Land and Water in 2016. Previous to joining Healthy Land and Water, Stephen was a state government minister for 13 years and was responsible for portfolios including energy, water, natural resources, mines, trade health and emergency services.

Stephen is highly regarded for his insight and for his ability to identify emerging challenges and develop strategies to effectively deal with them. He is passionate about community engagement and collaboration and is dedicated to finding science-based solutions to environmental issues affecting South East Queensland and beyond.

Other roles:

  • Chairman of NRM Regions Queensland
  • Non-executive Director of Greening Australia

Mayor Karen Williams


Karen Williams is an experienced leader and manager and currently the Mayor of Redland City Council. Karen was first elected to council in 2004 and took over the mayoral role in 2012. She is dedicated to helping Redland City become a hub for job creation and economic development and prides herself on her strong work ethic, caring nature and focus on the community.

Karen is passionate about applying her small business and local government experience to her role at Healthy Land and Water is focused on improving service delivery, finding cost savings and improving operational efficiencies.

Simon Warner


Simon Warner is an experienced Director and corporate executive. Simon has a history of successfully leading and managing both corporate and not for profit enterprises. He is currently Executive Chairman of an enterprise software company, Tactiv Pty Ltd. Previously he was Chief Executive Officer and Director of SEQ Catchments Ltd.

Simon has a Business degree and a post graduate qualification in IT and has spent a good deal of his working career in executive roles ranging from IR to Logistics and Operations management. He has also worked closely with government on policy and regional planning issues including overseeing the development of the South-East Queensland Rural Futures Strategy and the SEQ Regional NRM plan.

He is passionate about agricultural sustainability and innovative ways to fund and support positive social and environmental outcomes. Simon lives at Murphys Creek in the Lockyer Valley and operates a small grazing holding in addition to his corporate activities.


Nadia O’Carroll


Nadia O’Carroll is a qualified accountant. Nadia was a Division 2 Councillor for the Scenic Rim Regional Council from 2012 to 2020. During her term in council she held the positions of Finance Chair (2012-2017), Deputy Mayor (2017-2018). Between 2012 and 2016, Nadia was a member of Gondwana Rainforests of Australia World Heritage Community Advisory Committee.

Nadia has a long history of volunteering and over the past 20 years has been involved with many local organisations including Tamborine Mountain Natural History Association, Tamborine Mountain Rural Fire Brigade and Tamborine Mountain Show Society. She has a strong interest in the natural environment, science and biodiversity and is driven by her passion for issues facing the Scenic Rim.

Nikki Poteri-Collie


Nikki Poteri-Collie is a senior leader with more than 25 years’ experience building the strategic and financial success of organisations across the water, energy, mining and industrial sectors. With a diverse background gained in large corporations and government agencies, Nikki brings extensive experience across commercial and financial management, strategy and business planning as well as marketing and business development.

In addition to her board role at Healthy Land and Water, Nikki is General Manager Finance, Strategy and Growth, Asset Services with Downer EDI Limited. Prior to joining Downer, Nikki held executive roles with Seqwater and Thiess.

With a passion for the environment and the health of Australia’s precious waterways, Nikki is driven to apply her experience and skills to ensure the enduring success of Healthy Land and Water so that it continues to deliver for future generations.

Amanda Creevey


Amanda Creevey has 20 years’ experience leading teams to deliver results and sustainable organisational change. She has held roles previously in the defence and transport sectors, with a focus on security intelligence, enterprise risk, project/program and portfolio management for capital works.

Amanda is a former Officer in the Australian Army who is passionate about business transformation and capability development.

Executive Team
Environmental Offsets Team
Natural Asset Management and Protection Team
Capacity Building and Knowledge Brokering Team
Science, Innovation and Monitoring Team
Water by Design

Get in touch

Healthy Land and Water is dedicated to the care of our unique and beautiful land, waterways and biodiversity.

  • Address: Level 19, 160 Ann Street Brisbane QLD 4000
  • PO Box: 13204, George Street Brisbane QLD 4003
  • Phone: (07) 3177 9100
  • Fax: (07) 3177 9190
  • Email:

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