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Whether and to what extent contaminated properties harm ecologic and human health are topics of considerable interest, but also considerable uncertainty. To report and reduce the uncertainties inherent in assessing ecologic and health risks, analysts have increasingly come to rely on methods collectively termed probabilistic risk assessment (PRA). Several federal and state agencies have approved the use of some or many aspects of PRA, but its site-specific application has often been limited to high-profile sites and large projects. Nonetheless, times are changing: newly developed software tools, and recent federal and state guidance documents formalizing PRA procedures, now make PRA a readily available method of analysis for even small-scale projects. The benefits of PRA relative to "traditional" "point-estimate" risk assessments are several, and provide analysts, stakeholders, policy-makers, and other interested parties alike the details and insights they need to make informed, equitable decisions. This workshop is the first educational event organized jointly by the Society for Risk Analysis and the Interstate Technology Regulatory Council.
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