Over Dr. Hrudey's 43 year career, he has pioneered interdisciplinary expertise in public health plus engineering to address human health impacts of environmental problems, particularly safe drinking water. He is acknowledged as one of Canada's leaders in environmental risk assessment, management and communication. He served as an expert on the Walkerton Inquiry and developed the preventive risk management methodology that underpins recent international drinking water guidelines Dr. Hrudey has sought effective use of evidence in public decision-making, serving on 25 expert panels. His peers have recognized his significant contributions awarding him Fellowships with the International Water Association (2010) and the Society for Risk Analysis (2007).