NRC Issues Event Notification for Yankee Rowe Nuclear Plant, Mass.

WASHINGTON, March 16 -- The Nuclear Regulatory Commission issued the following event notification (No. 56410) involving Yankee Rowe Nuclear Plant, Massachusetts:

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Facility: Yankee Rowe

Region: 1

State: MA

Unit: [] [] []

RX Type: Unit 1

NRC Notified By: Ian Lemay

HQ OPS Officer: Bill Gott

Notification Date: 03/14/2023

Notification Time: 22:50 [ET]

Event Date: 03/14/2023

Event Time: 20:00 [EDT]

Last Update Date: 03/14/2023

Emergency Class: Non Emergency

10 CFR Section:

50.72(b)(3)(xiii) - Loss Comm/Asmt/Response

Person (Organization):

Bickett, Brice (R1DO)

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Table

[Link to table at bottom of document.]

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LOSS OF RESPONSE CAPABILITIES

The following information was provided by the licensee via fax:

"On March 14, 2023, at 2000 EDT, in accordance with 10 CRFR 50.72(b)(3)(xiii). Yankee Nuclear Power Station Independent Spent Fuel Storage Installation (ISFSI) determined that the impacts of a severe winter storm have resulted in a major loss in off site response capability. Since approximately 0200, very heavy snow has fallen and greater than two feet has accumulated on site. All security related equipment has remained functional, and there have been no impacts to methods of offsite communications or emergency assessment capability. The concrete cask heat removal systems have remained operable in accordance with the NAC International multi-purpose container system (NAC-MPC) technical specifications. From approximately 0550 until 1840, offsite power was lost, and the site was powered by the security diesel generator. Periodically throughout the day, the Security Shift Supervisor was in contact with State and local police to ensure response capability. At the 2000 hours update, the law enforcement agencies reported that there were recent reports of trees and power lines being downed by the weight of the snowfall causing road closures and significantly impacting routes and response times to the site.

"The site remains fully staffed."

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View table at https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2023/2...

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Original text here: https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2023/2...