How does EPA decide when to take federal action?
EPA regions receive notifications of potentially contaminated sites from states and other sources. The regions work with their state and tribal partners to determine which sites will be evaluated. EPA refers sites posing more immediate threats to its removal program for short-term cleanup work. The Agency addresses sites posing long-term threats sufficient for cleanup under the federal Superfund remedial program, via the NPL or a non-NPL cleanup approach. Non-NPL cleanup approaches include Superfund Alternative Approach agreements, state or tribal environmental cleanup programs, and the RCRA.