Under the terms of the settlement, Alcoa will elect within a year one of three options for achieving the required emissions reductions: install new pollution controls on its existing powerplant; replace its existing powerplant with new electricity generating units and pollution controls; or shut down the powerplant. "We fully expect they will replace them with cleaner units," says John Peter Suarez, EPA's assistant administrator for enforcement. Alcoa also will pay a $1.5-million civil penalty and spend at least $2.5 million on two additional projects that will partially offset the impact of past emissions.