IR 05000331/2024002
| ML24297A501 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 10/25/2024 |
| From: | Dave Hills NRC/RGN-III |
| To: | Both J NextEra Energy Duane Arnold |
| References | |
| IR 2024002 | |
| Download: ML24297A501 (1) | |
Text
SUBJECT:
DUANE ARNOLD ENERGY CENTER - NRC INSPECTION REPORT NO. 07200032/2024001 AND 05000331/2024002
Dear Justin Both:
On September 26, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at the shut-down Duane Arnold Energy Center (DAEC) in Palo, Iowa. The purpose of the inspection was to determine whether activities authorized by the license were conducted safely and in accordance with NRC requirements. The enclosed report presents the results of this inspection, which were discussed with members of your staff on September 26, 2024.
The inspection consisted of an examination of activities at the site as they relate to safety and compliance with the Commissions rules and regulations. Areas examined during the inspection are identified in the enclosed report. Within these areas, the inspection consisted of a selective examination of procedures and representative records, reviewing work activities, and interviews with personnel.
Based on the results of this inspection, the inspectors did not identify any violations of NRC requirements.
October 25, 2024
J.Both
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations (CFR) 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, David E. Hills, Chief Decommissioning, Reactor, and ISFSI HP Branch Division of Radiological Safety and Security Docket No: 07200032 05000331 License No: DPR-49
Enclosure:
IR Nos. 07200032/2024001 05000331/2024002
REGION III==
Docket No:
07200032 05000331 License No:
DPR-49 Report No:
07200032/2024001 05000331/2024002 Enterprise Identifier:
I-2024-001-0143 Licensee:
NextEra Energy Duane Arnold, LLC Facility:
Duane Arnold Energy Center (DAEC) ISFSI Location:
Palo, IA Dates:
September 24, 2024 to September 26, 2024 Inspectors:
Daniel Sargis, Health Physicist Approved by:
David E. Hills, Chief Decommissioning, Reactor, and ISFSI HP Branch Division of Radiological Safety and Security
EXECUTIVE SUMMARY The inspection consisted of interviews of site personnel, onsite walkdowns, observation of the biennial emergency exercise, reviews of facility changes, observations of licensed activities at the independent spent fuel storage installation (ISFSI) and evaluation of the licensees programs and recent changes to those programs using inspection procedure (IP) 60855.
Operation of an Independent Spent Fuel Storage Installation
The licensee performed ISFSI monitoring operations, change evaluations, radiation protection, and quality assurance activities in accordance with the Certificate of Compliance (CoC) requirements and applicable regulations.
Report Details 1.0 Operation of an Independent Spent Fuel Storage Installation (IP 60855)
1.1 Inspection Scope The inspectors performed walkdowns reviewed documents, observed the biennial emergency preparedness exercise, and interviewed plant personnel to assess the licensees performance in the following areas:
Changes, tests, or experiments were made in accordance with 10 CFR 50.59 and 10 CFR 72.48, and evaluations required by 10 CFR 72.212 were revised, as applicable;
ISFSI monitoring activities were performed in accordance with approved procedures; and
The effectiveness of the licensees quality assurance program.
1.2 Observations and Findings The licensee performed their final spent fuel loading campaign in Spring 2022 and the ISFSI has remained in its loaded configuration since that time.
The inspector observed that the licensee was evaluating changes to the facility, programs, and procedures since the last inspection in accordance with 10 CFR 50.59, 10 CFR 72.48, and 10 CFR 72.212. Changes were consistent with the license and CoCs, and did not reduce the effectiveness of the applicable programs.
The licensee performed routine surveys and environmental radiological monitoring as required for the ISFSI. The survey results indicated that radiological conditions were in accordance with the 10 CFR 72.104 limits.
The inspector conducted a walkdown of the ISFSI pad on September 24, 2024. The inspector evaluated the structural condition of the pad and storage modules for the TN NUHOMS systems in service.
A review of audits and corrective action reports written since the last ISFSI inspection indicated that the licensee was identifying and correcting conditions adverse to quality.
The licensee had not yet completed a quality assurance audit since the last inspection.
No findings were identified.
1.3 Conclusions ISFSI operations and monitoring were performed in accordance with CoC requirements and applicable regulations.
2.0 Exit Meeting The inspector presented the inspection results to Jeffrey Miell and other members of the licensee staff on September 26, 2024. The licensee acknowledged the results as presented and did not identify any of the potential report input as proprietary in nature.
ATTACHMENT: SUPPLEMENTAL INFORMATION
SUPPLEMENTAL INFORMATION PARTIAL LIST OF PERSONS CONTACTED J. Miell, Facilities Manager T. Weaver, Senior Licensing Engineer M. Casey, Radiation Protection and Environmental Manager INSPECTION PROCEDURE (IP) USED IP 60855 Operation of an Independent Spent Fuel Storage Installation ITEMS OPENED, CLOSED, AND DISCUSSED Opened, Closed, Discussed Type Summary None
PARTIAL LIST OF DOCUMENTS REVIEWED The following is a partial list of documents reviewed during the inspection. Inclusion on this list does not imply that the NRC inspectors reviewed the documents in their entirety, but rather that selected sections of portions of the documents were evaluated as part of the overall inspection effort. Inclusion of a document on this list does not imply NRC acceptance of the document or any part of it, unless this is stated in the body of the inspection report.
- 2024 ERO Biennial Exercise Scenario; 09/25/2024
- AR 2434252; ISFSI Loss of Power; 08/13/2022
- AR 2443693; Notification of CARS 2022-183 and 2022-214; 12/12/2022
- AR 2461297; ISFSI Aging Management Inspection of HSM-009; 06/29/2023
- AR 2466787; DFS Aging Management Inspection Indications; 09/12/2023
- AR 2483598; Self-Assessment Identified NA Related Gaps at PDA; 04/09/2024
- AR 2493852; 72.48 Reviews Fail to Address All Appropriate FSAR Revs; 08/28/2024
- AR 2496600; ISFSI - Loose Cables Identified; 09/30/2024
- CAR 2022-183; Orano Report for Weld Wire; 09/29/2022
- CAR 2022-214; Orano Report for Top Shield Plug ;11/29/2022
- DBD-F16-001; Duane Arnold Energy Center Design Basis Document for the Dry Spent Fuel Storage Program; Revision 23
- Decommissioning Quality Assurance Program; Revision 1
- EC 295579; ISFSI Temperature Monitoring Changes Due to Plant Shutdown; Revision 1
- EC 297237; ISFSI Power Supply Change 72.48 Screen; Revision 0
- EC 299128; DBD-F16-001 Revision; Revision 0
- OI 581; Horizontal Storage Module Temperature Monitoring; Revision 11
- PDA-M-20231019-1; ISFSI Pad Survey; 10/19/2023
- PDA-M-20240415-1; ISFSI Pad Survey; 04/15/2024
- PDS21-004; ISFSI Audit; 05/28/2021
- STP NS810101; ISFSI Horizontal Storage Module (HSM) Monitoring; Revision 5
- Work Order 40826046; Inspect HSM and ISFSI Pad; 09/12/2023
- Work Order 40883575; Monitor Settlements at the ISFSI Base Mat; 05/21/2024
- Work Order 40886810; Inspect ISFSI Module for Structural Degradation; 04/25/2024 LIST OF ACRONYMS USED ADAMS Agencywide Document Access and Management System CFR Code of Federal Regulations CoC Certificate of Compliance DAEC Duane Arnold Energy Center DRSS Division of Radiological Safety and Security IP Inspection Procedure IR
Inspection Report
Independent Spent Fuel Storage Installation
Office of Nuclear Material Safety and Safeguards
NRC
U.S. Nuclear Regulatory Commission