Vermont Yankee nuclear plant officials say two high radiation readings were false alarms.
Yankee reported to the Nuclear Regulatory Commission on Wednesday that a radiation detector on the plant's refueling floor issued notifications that it was getting high readings twice—once in June, once in July.
Plant spokesman Robert Williams says the plant's ventilation system began shutting down, as it's designed to do when high radiation readings are recorded. But he said follow-up checks showed that the high readings were false.
Williams says the problem has been addressed by the replacement of four radiation detectors in the plant.