Early Response Action (ERA) (Environmental Glossary)

Early Response Action (ERA): Refers to a remedial action performed prior to the final remedy, and often prior to the remedial investigation. An ERA addresses current risks to public health, welfare, and the environment; protects or provides a supply of water; addresses sources of contamination; or controls or contains contamination where such actions are expected to reduce the scope or cost of the remedy needed at the site. It is also referred to as an interim remedial action.