This panel will discuss a US EPA-funded research project intended to improve risk communication for post-incident decontamination and clearance activities associated with intentional contamination of a water system. The study incorporates two complementary methods conducted in successive phases. The recently-completed first phase included robust case study analyses of risk communication related to recent and significant contamination incidents. The second phase, which is currently underway, will identify ways in which disparate stakeholder groups in a metropolitan area differentially perceive risk and subsequent risk communication efforts
