A congressionally mandated report prepared by the Department of Energy s Office of Environmental Management to estimate the cost and schedule of cleaning up the Nation s nuclear weapons complex. baseline risk assessments. Scientific analyses determining the toxicity of existing contamination that include the type of contamination, its hazardousness, who has been or could be exposed to it, and present or future health risks. Natural salt layers in geologic formations. It is usually hard and mined like rock. Generic term for rock that underlies soil or other unconsolidated superficial material.
Berms are also horizontal cuts along slopes which provide slope stability and contain sloughing.
A facility which uses microorganisms to degrade water-based contaminants. The process of using microorganisms to degrade or break down hazardous material. See also pressurized water reactor. It is used in glassware that resists heat and is a leading candidate for use in high-level waste immobilization and disposal. branching ratio . In branching radioactive decay, the fraction of nuclei that disintegrates in a specific way.