Events

Andrew Barker is Head of Data at Senversa and a leading voice on how artificial intelligence is reshaping environmental practice. With two decades of experience across the land and groundwater sector, he has witnessed the gap between hype and reality. Nowadays he works to bridge that gap.
He leads Senversa’s data and AI strategy, helping practitioners, regulators and clients turn complex information into clear, trusted decisions. Known for his pragmatic innovation, Andrew champions AI that is practical, ethical and useful, not just exciting.

Dr Anand Chandra is a senior principal environmental risk assessor with over 20 years of experience in consulting, regulation, and research across the Asia Pacific. He specialises in human-health and environmental risk assessments, particularly for sites impacted by organic and inorganic contaminants. His work spans diverse sectors, including landfills, mining, transport, and energy, with a strong focus on complex contamination issues such as PFAS, vapour intrusion and acid mine drainage. He provides expert support to contaminated land auditors, also acting as an expert witness in environmental legal proceedings. A registered member of ACTRA and part of ALGA’s Risk Assessment Special Interest Group, Anand employs a weight-of-evidence approach to deliver scientifically robust, risk-based solutions. His work ensures regulatory compliance, promotes sustainability, and enhances the cost-effectiveness of remediation and risk mitigation strategies.

Emmylou is a Senior Associate Environmental Scientist at Senversa, with a background in remediation contracting and contaminant modeling followed by almost a decade in consulting. Emmylou loves in situ remedial technologies, especially ones that use cool science, and has previously provided project support on US EPA Superfund projects as well as contamination assessment and remediation projects across Australia.

Craig is a CEnvP-SC with 30 years' experience in dirt, water and waste.

He was a Director of ALGA for six years and is a current member of the Certification Board for the CEnvP Scheme.

He’s jumped out of a plane and swum with sharks, but still needs therapy if a cockroach comes near him.

Chris Duesterberg has over 18 years’ experience in contaminated site assessment, remediation and hydrogeology, having worked alongside Commonwealth and State government agencies and private organisations to deliver some of Australia’s largest remediation projects. He is a NSW EPA-accredited Site Auditor and Certified Environmental Practitioner - Site Contamination Specialist (CEnvP-SC), and has been involved with ALGA for over 15 years, including the past five years as Chair of the Groundwater Fate and Transport SIG. When not talking shop, Chris is happy to discuss the intricacies of pitch sequencing and why the hit-and-run never works, on the baseball diamond.

Lange Jorstad, PhD, is a Senior Principal Contaminant Hydrogeologist with 25 years’ experience in the design, management and delivery of contaminated land assessment and remediation services and related corporate advisory services in Australia, Asia Pacific and the US.

Sarah Mansfield is an environment and planning lawyer with more than 17 years’ experience. She has proven expertise in contamination, waste, pollution and environmental disputes, and enjoys working for, against and mostly with consultants. Sarah is a big fan of ALGA, having served on the Board and participated in numerous events.

Senior Associate Environmental Engineer with over 15 year’s experience working in the contaminated land industry.

Andrew is an environmental engineer with an executive master of public administration and over 25 years experience in contaminated land. He has worked for the NSW EPA and the Sydney Olympics and has assisted Defence with managing PFAS contamination. He currently leads the national environment practice at ADE Consulting Group. Andrew uses his expertise to argue for pragmatic and proportional responses to complex contamination issues.

Dr Gemma Williams is a human health and ecological risk specialist with over fifteen years of experience in the contaminated land industry.
Gemma’s experience in evaluating risks to human and ecological receptors is underpinned by her knowledge of biological and ecological processes and is supported by her strong problem-solving skills and pragmatic approach to achieving project outcomes.

Sam Willis currently works for Alliance, based out of Sydney, with experience in the industry across both Australia and the United Kingdom.