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Nuclear Event – Offsite Notification (mixed beta/gamma surface contamination on transportation package): Brunswick Steam Electric Plant, North Carolina

2016/07/08

Nuclear Event – Radioactive contamination

North America – USA | State of North Carolina, Soutport, Brunswick Steam Electric Plant, Unit 1, 2
Location: 33°57’30.0″N 78°00’37.0″W
Present Operational Age: ~41 years
Event: LOSS COMM/ASMT/RESPONSEOFFSITE NOTIFICATION

Nuclear Event in USA on Wednesday, 06 July, 2016 at 18:07 [EDT].

OFFSITE NOTIFICATION TO THE UNITED STATES DEPARTMENT OF TRANSPORTATION

 “In accordance with 10 CFR 50.72(b)(2)(xi), Duke Energy is notifying the NRC of a report made to the Department of Transportation concerning the identification of removable contamination in excess of 49 CFR 173.443(a) limits. This report was made at 1807 Eastern Daylight Time (EDT).

“On July 6, 2016, an EnergySolutions 3-60B Transportation Package was received onsite. As a result of receipt surveys, Brunswick Health Physics personnel confirmed removable surface contamination on the transportation package in excess of 49 CFR 173.443(a) limits. The package was shipped as UN2910, Radioactive material, excepted package-limited quantity of material, 7, and was consigned as a non-exclusive use shipment.

“Surveys identified mixed beta/gamma contamination ranging from approximately 2500 to 4500 dpm/100 sq cm on the surface of the transportation package. All other smears taken on the cask raincover, trailer bed and tires were less than minimum detectable activity for removable contamination.

“The transportation package is located in a radiological controlled area and access is controlled by Radiation Protection. Surveys have confirmed that the contamination is limited to the surface of the cask. In addition, no personnel contamination events have been attributed to the contamination found on the transportation package.

“This event did not result in any adverse impact to the health and safety of the public.

“The NRC Resident [Inspector] has been notified.

“The safety significance of this condition is minimal. There is no indication of onsite or personnel contamination as a result of this event.

“The transportation package is controlled in a radiological controlled area and access is controlled by Radiation Protection.”

The originator of the empty cask arriving at the site (Westinghouse-Pittsburgh) was notified of the contamination. The cask is used for control rod blades and local power range neutron monitoring string shipping.

Source: NRC  Event Number: 52069


Previous Event

Nuclear Event in USA on Sunday, 07 February, 2016 at 13:26 [EST. ]MANUAL SCRAM AND ALERT DECLARATION DUE TO ELECTRICAL FAULT RESULTING IN FIRE/EXPLOSION. Event Number: 51715

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