Per U.S. Environmental Protection Agency's guidance, each contaminant was categorized as carcinogenic or noncarcinogenic. Exposures to contaminants were then evaluated for potential health effects. The method used was dependent on whether the exposure was to the public or to a worker and whether the contaminant was classified as a carcinogen or a noncarcinogen. Health effects were reported separately and were not summed where distinctly different types of effects were reported for chemical exposures (that is, carcinogenic and noncarcinogenic).
United States Department of Energy, "Department of Energy Programmatic Spent Nuclear Fuel Management and Idaho National Engineering Laboratory Environmental Restoration and Waste Management Programs Final Environmental Impact Statement, Volume 2, Part B" (1995). All U.S. Government Documents (Utah Regional Depository). Paper 381.