Tenth Circuit Finds Price-Anderson Act Does Not Preempt Nuisance Claims

This decision departs from all other federal circuits that have addressed the issue and, if adopted by other courts, represents a significant expansion of potential liability for operators in the nuclear energy industry.

In a pointed opinion, on June 23, the US Court of Appeals for the Tenth Circuit ruled that defendants Dow Chemical Co. (Dow) and Rockwell International Corp. (Rockwell) had waived any argument that the Price-Anderson Act (PAA) expressly preempted the plaintiffs' related state law nuisance claims, and, even if the defendants had not waived that argument, that the PAA is not a complete federal preemption statute that would bar the plaintiffs from asserting a state law nuisance claim in the event that they could not prove a "nuclear incident"[1] under the PAA.[2]

Background

The Cook v. Rockwell International Corp. case stems from handling of radioactive waste at Rocky Flats, a nuclear weapons production facility located near downtown Denver. During the Cold War, the plant had been operated by Dow and later by Rockwell, both under contracts with the federal government. Evidence presented in the litigation revealed that plant workers had disposed of radioactive waste onto the ground, where the waste eventually leached into nearby bodies of water, and that they had also released waste into the air, which then migrated onto the soil around the plant. The contamination allegedly caused nearby residential property values to decline, prompting the property owners to file a civil lawsuit under both the PAA and state nuisance law.

At trial, the jury awarded the plaintiffs a verdict of $177 million in compensatory damages, $200 million in punitive damages, and $549 million in prejudgment interest, totaling nearly $1 billion. On appeal, the defendants successfully argued that the trial court had erred in its instructions to the jury regarding the plaintiffs' burden of proof under the PAA with respect to a "nuclear incident," and the Tenth Circuit vacated the district court's judgment and remanded the case for further proceedings.[3] On remand, the plaintiffs abandoned their PAA claim (essentially conceding that they could not prove a "nuclear incident") and argued that the judgment on their state law claim nevertheless remained intact. The district court disagreed, finding that the PAA preempted their state law nuisance claim and that the Tenth Circuit's mandate barred the plaintiffs from securing judgment on their nuisance verdict, and...