GO2-23-135, Notice of Readiness for Supplemental Inspection

Notice of Readiness for Supplemental Inspection

ML23348A364
Person / Time
Site:	Columbia
Issue date:	12/14/2023
From:	David Brown Energy Northwest
To:	Office of Nuclear Reactor Regulation, NRC Region 4, Document Control Desk
References
GO2-23-135
Download: ML23348A364 (1)

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ENERGY David P. Brown Site Vice President NORTHWEST P.O. Box 968, PE23 Richland, WA 99352-0968 Ph. 509-377-8385 F. 509-377-4150 dpbrown@energy-northwest.com December 14, 2023 GO2-23-135 10 CFR 2.201 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 NOTICE OF READINESS FOR SUPPLEMENTAL INSPECTION

References:

1) NRC Letter EA-21-170, Columbia Generating Station - Final Significance Determination of a White Finding, Notice of Violation and Follow-Up Assessment Letter; NRC Inspection Report 05000397/2023090, ML23111A237, dated June 1, 2023.

2) NRC Letter EA-23-054, Columbia Generating Station - Final Significance Determination of a White Finding, Notice of Violation and Follow-Up Assessment Letter; NRC Inspection Report 05000397/2023093, ML23276B477, dated November 1, 2023.

Dear Sir or Madam:

In Reference 1, the US Nuclear Regulatory Commission (NRC) issued a White Finding for failure to implement and follow written procedures for radiation protection which resulted in an airborne radioactivity event and multiple confirmed uptakes of radioactive materials to workers on May 28, 2021.

In Reference 2, the NRC issued a White Finding for failure to take suitable and timely measurements to adequately assess the internal dose of the two pipefitters and compliance with occupational dose equivalent limits associated with the reactor water cleanup contamination event on May 28, 2021.

Based on these findings, the NRC assessed Columbia Generating Stations (Columbia) performance to be in the Regulatory Response column of the NRCs Action Matrix. In the referenced letters, the NRC indicates they plan to conduct a supplemental inspection using Inspection Procedure 95001, Supplemental Inspection Response to Action Matrix Column 2 (Regulatory Response) Inputs, following a notification of






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GO2-23-135 Page 2 of 2 readiness from Energy Northwest. This letter serves as notification of readiness for the NRC to perform the supplemental inspection at Columbia.

Energy Northwest has completed investigations to determine the root and contributing causes of the performance issues associated with both White Findings. The extent of condition and extent of cause have also been evaluated, and corrective actions have been developed to address the root and contributing causes and to prevent reoccurrence of the significant performance issues.

Energy Northwest requests the NRC conduct a single 95001 supplemental inspection to address the two interrelated White Findings.

There are no commitments being made to the NRC by this letter. Should you have any questions, please contact IR Bitner, Regulatory Compliance Supervisor, at (509) 377-4204.

Executed this _____ 

  day of ______________, 2023.

Respectfully, David P. Brown Site Vice President cc: NRC Region IV Administrator NRC NRR Project Manager NRC Resident Inspector/988C NRC Enforcement, Region IV CD Sonoda - BPA