Washington, D.C.–The Nuclear Regulatory Commission has issued a confirmatory order to Dominion Energy Nuclear Connecticut Incorporated, following an Alternative Dispute Resolution  mediation session regarding security-related violations at the Millstone nuclear power plant.

Dominion Energy has agreed to carry out a series of corrective actions, which are spelled out in the order and which the Nuclear Regulatory Commission will confirm in upcoming inspections.

The actions are intended to address two violations and related performance aspects identified during an Nuclear Regulatory Commission investigation at the Waterford, Conn., plant, where NRC determined that a now-former contracted security officer working as an armorer deliberately failed to properly perform required maintenance of weapons at the plant and conduct monthly inventories of weapons not in use, including the deliberate falsification of records related to both issues.

The mediation session was conducted on Sept. 20. Under the ADR process, mediation is facilitated by a neutral third party who has no decision-making authority but assists the NRC and a licensee in reaching an agreement when differences exist regarding an enforcement action.

A number of actions agreed to by Dominion include an evaluation of security contractor oversight and related training; independent reviews of the safety culture and organizational effectiveness within the site’s security organization; and communication about the issue to industry peers.