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Risk Assessment Interest Group

ALGA has established this interest group on risk assessment to provide structure and support for members that are interested in improving their knowledge across the elements of risk assessment. Environmental and human health risk assessment is a multi-disciplinary field encompassing the disciplines of public health, ecotoxicology, human toxicology, epidemiology, exposure science including fate and transport modelling and statistical inference. Early development work in Australia in the late 1980s focused on a risk-based approach to the assessment and mitigation of contaminants in the environment and such an approach has progressively been reinforced and developed both internationally and within Australia. While regulatory guidance has progressed, there are still many opportunities for development and RASIG would like to seek input from members who are using novel techniques within the industry (subject to client agreement). The group intends to provide a communication strategy across the member group and across industry, academia and government sectors.

The objectives of the group include:

  • Information provision and training for ALGA members
  • Seminars with invited international and national speakers
  • Regulatory updates and new international development updates
  • A conduit to provide the regulatory community, feedback on areas for improvement based on industry experiences
  • Industry collaboration on risk assessment across government and academia.


2019 Committee Members (renewed each calendar year):


Chair: Therese Manning, Principal – Environmental Risk Sciences

After almost 25 years with the NSW EPAmostly as their risk specialist, Therese is now undertaking risk assessments for contaminated land, industrial facilities and major developments as well as reviews of such assessments for regulators and auditors. She has been involved in work on updating Australia’s chemical regulatory system and the development of State and National guidance documents. She has also lectured at the University of Sydney and University of Technology, Sydney.


Judith Betts, Environmental Scientist – Bayside City Council

Judith has 19 years’ experience in local government in the areas of environmental management and environmental health.  Judith is involved in the assessment of proposed developments, the management of environmental responsibilities of Council operations and assets, and in regional committees related to legacy contamination in the Botany area.

Meredith Burgon, Principal Scientist – Maple Auditing

Meredith has gained significant experience over the past 20 years in a wide range of areas working in Canada, the Middle East and Australia including: contaminated site assessment and management, soil, groundwater and vapour sampling design and methodology, assessment of impacts to groundwater from contaminated sites, environmental auditing, assessment of contaminant exposure pathways and risk, contaminated land due diligence advice focussing on property divestment and acquisition strategies. Meredith has undertaken a broad scale of works as the field scientist, project manager and project director on over 200 contaminated site assessments and has been responsible for the design, implementation and project management of site assessments in support of environmental audits (both 53X and 53V audits).


Stephen Cambridge – EHS Support

Stephen is a Chartered Professional Environmental Engineer and Victorian EPA Appointed Auditor (Contaminated Land) with over 20 years’ experience in remediation and contaminated land investigations. His experience encompasses contaminated sites and landfill investigations in Australia and Papua New Guinea, including conducting large scale complex contaminated land investigations and remediation programs on petroleum and petrochemical sites, landfill gas risk assessments and environmental risk assessments for existing and former landfills.  His areas of interest with regard to risk assessment include both the quantification of risk, but also the ‘grey’ areas of risk assessment, such as risk perception, uncertainty, communication, and how various stakeholders understand and interpret risk assessments.  This interest stems from his role as an Auditor and the need to understand, quantify and communicate risk to the various stakeholders.


Marcus Herrmann, Principal – RILEY Consultants

Marcus is a highly experienced environmental scientist with a unique blend of technical, regulatory, policy and risk management expertise. He has represented Auckland City Council from 2005 to 2017 in six Ministry for the Environment technical and policy review groups for the NESCS (NZ National Environmental Standard for Soil Contamination). Marcus was responsible for developing Auckland City Council's closed landfills asset management and contaminated land management plans and remediating Council land according to health risk prioritisation. In 2014 Marcus moved from project management to environmental health regulation, managing a team of specialists in contaminated land, hazardous substances, water quality and acoustics where he developed inter-agency regulatory relationships for asbestos and hazardous substances response between Auckland Council, WorkSafe NZ and the Auckland Regional Public Health Service. Marcus currently manages RILEY’s (New Zealand-owned and operated consultancy firm) specialist Site Contamination Team.


Victor Kabay, Senior Health Risk Advisor – EPA Victoria

Victor has 15 years of experience in human health and environmental risk assessment and is currently Principal Expert (Environmental Public Health) at EPA Victoria. In this role, he is responsible for providing technical mentoring and scientific advice on matters relating to human health risks across the organisation. Prior to joining EPA in 2016, Victor worked as a consultant specialising in the assessment of risks associated with contaminated land. Victor has completed a Masters of Environment (Pollution and Waste Management) and a PhD on the fate and transport of pollutants on former gasworks sites.


Ken Kiefer – Technical Director - ERM

Ken is ERM’s Global Leader of the Human Health and Ecological Risk Assessment Technical Community.  Ken has over 20 years of experience in the risk assessment and environmental toxicology as a consultant working in a range of national and state environmental policy frameworks; including all Australian states, U.S., New Zealand, India, South Africa and other international jurisdictions. Ken’s risk assessment experience includes wide-ranging constituents of concern including metals (arsenic and mercury), nutrients (ammonia and nitrate), pesticides, VOCs, semi-volatile organic compounds (SVOCs), polycyclic aromatic hydrocarbons (PAHs), coal tar, polychlorinated biphenyls (PCBs) and dioxins, and radionuclides.


John Massie, Principal: Land Contamination – Western Environmental

John has over 18 years' experience in the diagnosis and remediation of contaminated land. Project work has included both preliminary and detailed site investigations, quantitative health and ecological risk assessment as well as remediation of hydrocarbon, metal and pesticide contaminated soils.  John has experience in undertaking human health risk assessments as well as providing reviews of health risk assessment in his previous role as contaminated sites auditor assistant. He also has wide ranging experience in soil ecotoxicology predominantly via the use of biosensors to interrogate and assess contaminated soil and water samples to support ecological risk assessment and develop site remediation strategies.


Carmel Parker, Senior Environmental Scientist – Johnstone McGee and Gandy

Carmel has worked as a contaminated land consultant for 7 years in Tasmania. She has been a member of the ALGA Tasmanian branch committee since early inception of the committee in 2014 was an RASIG member in 2017. She has completed masters research on plant uptake modelling and phase partitioning of petroleum hydrocarbons and has a special interest in human health risk assessment and exposure modelling. Carmel worked in local government in New South Wales, Victoria and Tasmania for 14 years as an Environmental Health Officer and later as an environmental consultant to local councils. 

Lean Phuah – Tonkin + Taylor NZ

Lean is a Discipline Director for Environmental Science at Tonkin + Taylor. She has over 25 years consulting experience in New Zealand and Asia. Lean specialises in investigations, assessments and management of sites contaminated with a wide range of contaminants. Lean is a chartered professional engineer (CPEngNZ) and chartered environmental professional (CenvP(SC)). Lean is interested in supporting and improving member awareness on risk assessment elements and keen to contribute to ALGA’s mission.

The Risk Assessment Interest Group is sponsored by:

There are two ways you can sponsor this Interest Group:

As an add-on to your ALGA Partnership – see here for details or contact membership@landandgroundwater.com
As a stand-alone sponsorship - see here for details or contact igs@landandgroundwater.com

All enquiries can be directed to ALGA via igs@landandgroundwater.com

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