Radiation monitor problem not failure’ Entergy saysBy Susan Smallheer
Staff Writer | July 28,2013The Shumlin administration wants more information from the Nuclear Regulatory Commission about what it called the failure of radiation monitors at the Vermont Yankee nuclear plant.
But Entergy Nuclear, owner of Vermont Yankee, said Saturday that while the monitors were not reporting properly, they still performed their function in controlling the ventilation of the reactor building.
Robert Williams, spokesman for Entergy, said the four monitors were “showing spurious signals, but they were still able to perform their safety function.”
He added, “To be perfectly clear, the monitors did not fail. They did not fail; they were generating false signals.”
According to Entergy’s preliminary report to the NRC, the monitors showed high levels of radiation in the the primary containment isolation system. A worker was sent in to check the reading, and verified radiation levels to be normal.
Williams said the plant had many radiation monitors, not just the ones that reported false signals.
Entergy decided as a precaution to replace the four monitors, which malfunctioned June 14 and again July 11, according to a report posted by the Nuclear Regulatory Commission last week.
Darren Springer, deputy commissioner of the Department of Public Safety, released a letter Friday he had sent to the NRC’s Region One administrator, William Dean. In the letter Springer asked for more information about the radiation monitors and questioning the 60-day period allowed for Entergy to file a report.
Springer couldn’t be reached for comment Saturday.
“Failure of the radiation monitoring equipment is a serious issue, and could have under other circumstances led to significant harm if the failed equipment had not detected a radiation release at the plant,” Springer wrote to Dean.
The radiation monitors that had erroneous spikes were associated with the ventilation system.
According to the NRC notification of the problem, “the cause of the spurious spikes is attributed to an unknown source of electrical noise,” and the report noted the problem had been entered into Vermont Yankee’s “corrective action plan.”
Springer said the state wanted a full accounting of the information Vermont Yankee provided to the NRC about the incidents. His letter also asked for information on the age and functionality of the failed monitors and if they were considered when NRC relicensed Vermont Yankee in 2012 for another 20 years of operation.
Springer said the state felt that such a “potentially serious equipment failure” should not be allowed a 60-day reporting requirement rather than immediate notification.
“Common sense would dictate that radiation monitoring equipment be functioning properly 100 percent of the time, and that such equipment failures would be immediately reported to regulators and corrected,” he wrote to the NRC.
@rutlandherald.comMORE IN This Just InMayor Christopher Louras endorsed Rutland County State's Attorney candidate Rose Kennedy Monday. Full StoryCaramelized leeks bring flavor to mashed to potatoes. Full Story
- Most Popular
- Most Emailed
- RICHARD'S POOR ALMANACK: On this day in 1776, as Nathan Hale is hanged by British military authorities for spying, he utters his famous last words — or does he? In 1975, Sara Jane Moore attempts to kill President Gerald R. Ford in San Francisco.
- TOMORROW'S HEADLINES TODAY: Patrick McArdle reports and the theft of an $89,000 shotgun, police release a video of the Monday Castleton robbery, O'Gorman reports a lawsuit by a local man claiming his vehicle unlawfully seized, police leave him in cold.
- RICHARD'S POOR ALMANACK: Giles Corey of Salem, Mass., is pressed to death during the Salem witch trials; on this day in 1952, film comedian Charlie Chaplin, while traveling to England, is denied re-entry into the United States by U.S. attorney general.
- RICHARD'S POOR ALMANACK: Dutch father of microbiology Antonie van Leeuwenhoek discovers the existence of one-celled organisms; in 1967, The Doors are booked to play the Ed Sullivan show; in 1858, freedom fighter Dred Scott dies on this day in St. Louis.
- TOMORROW'S HEADLINES TODAY: No money this year for western rail project, Lola Aiken memorialized in Montpelier, Supreme Court Castleton murder suspect will remain in jail, Shaftbury man fires shots from his AK-47 into neighbor's home.
- RICHARD'S POOR ALMANACK: On this day in 1959, Soviet Premier Nikita S. Khrushchev arrives in U.S. for historic 13-day visit; in 1987, Secretary of State George Shultz and Soviet Foreign Minister Eduard Shevardnadze sign nuclear reduction agreement.