Welcome to the Risk Assessment Information System
About the RAIS
This work has been sponsored by the U.S. Department of Energy (DOE), Office of Environmental Management, Oak Ridge Operations (ORO) Office through a joint collaboration between United Cleanup Oak Ridge LLC (UCOR), Oak Ridge National Laboratory (ORNL), and The University of Tennessee, Ecology and Evolutionary Biology, The Institute for Environmental Modeling (TIEM). All rights reserved.
For information on upcoming trainings, click here.
The RAIS web calculators undergo frequent checks. Every default land use and media combination in the calculators is programmed to run nightly. The results are compared against the previous night, and any changes are flagged for attention.