The Center for Public Integrity has taken a look at the state of Superfund sites throughout the US. Twenty-seven years after the government developed a program to identify and clean up the worst of these sites, toxic waste remains a problem across the country. "A one-year investigation by the Center for Public Integrity reveals the beleaguered state of the Environmental Protection Agency's Superfund effort, uncovers the companies and government agencies linked to the most sites and tracks progress of the clean up." Included in the content are searchable databases on EPA contractors, sponsored travel and congressional correspondence with EPA officials. You can also search for detailed information about Superfund sites across the country.