Focus on tougher sites blamed for decline in cleanups, but critics point to less funding and closer ties to industry

In October 2003, while 94,000-plus inhabitants slept nearby, Martin Lake pumped more than 150,000 pounds of sulfur dioxide into the air

Massive undertaking to clean up hazardous waste sites has lost both momentum and funding

Little-known change that helps agency meet funding challenges scrutinized

High levels of likely carcinogen found at New Jersey brook that the EPA calls safe for recreational use

EPA secrecy about sites' toxic dangers extends even to senators' inquiries