NRC seeks public comment on PRA project

August 24, 2023, 9:30AMNuclear News

In a notice published in the August 21 Federal Register, the Nuclear Regulatory Commission is requesting public input on the latest set of results from a multiyear project to study risk at a two-unit nuclear power plant site.

The NRC’s full-scope, multiunit site, Level 3 probabilistic risk assessment (PRA) project, begun in 2012, updates risk insights obtained from work done more than 30 years ago, the agency noted in a news release. The project examines a typical site with two large pressurized water reactors and their associated spent fuel. The Level 3 PRA project builds on Level 1 (possible reactor core damage scenarios) and Level 2 (possible radioactive material release scenarios) analyses to estimate potential health effects and economic impacts, according to the release.

The new results—covering earthquakes, internal fires, and high winds while the reactors are at full power—make up Volume 4 of the project’s eventual final report. NRC staff expects to continue releasing portions of the project for review by the public and the agency’s Advisory Committee on Reactor Safeguards through the middle of 2024.

Comment cut-off: Written comments can be submitted through October 20 via under Docket ID NRC-2023-0140 or by mail to the Office of Administration, Mail Stop TWFN 7 A60M, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.

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