DOE Environmental Management (EM)
U.S. Department of Energy waste management (hazardous waste, radioactive waste) and environmental remediation (waste site clean-up) programs.
EPA's Office of Solid Waste
Provides links to programs, initiatives, and resources concerning various types of wastes.
Cleanup Levels For Hazardous Waste Sites
Contains list of government regulation websites that give toxicity values, physical constants and state cleanup levels.