Speaker Name(s): Beth Parker, Ph.D. Description: Groundwater comprises more than ninety-six percent of our available freshwater resource globally; however, its quality has been impaired locally over the past several decades due to chemical uses and poor waste management practices. As populations continue to grow, cities sprawl, and climate changes, natural flow systems will be altered and the demand for these freshwater resources will increase. Managing these valuable groundwater supplies to ensure both quantity and quality when and where needed requires more knowledge regarding our impacts to these natural flow systems, the nature of a wide variety of contaminant types and their transport and fate in the subsurface, especially in bedrock aquifers. New characterization methods and insights regarding contaminant behaviour in fractured rock aquifers will greatly advance our current understanding and improve decision-making in the future.