ML25223A126
| ML25223A126 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Catawba, Brunswick, Robinson, McGuire  |
| Issue date: | 08/21/2025 |
| From: | Klos L Office of Nuclear Reactor Regulation |
| To: | Duke Energy Carolinas |
| References | |
| EPID L-2025-LRM-0080 | |
| Download: ML25223A126 (1) | |
Text
August 21, 2025 LICENSEE:
Duke Energy Carolinas, LLC FACILITIES: MCGUIRE, UNITS 1, 2; CATAWBA, UNITS 1 AND 2; ROBINSON, UNIT 2; AND BRUNSWICK, UNITS 1, 2
SUBJECT:
SUMMARY
OF AUGUST 4, 2025, PARTIALLY CLOSED PUBLIC MEETING WITH DUKE ENERGY CAROLINAS, LLC REGARDING FUTURE LICENSE AMENDMENT FOR MCGUIRE, UNITS 1, 2; CATAWBA, UNITS 1 AND 2; ROBINSON, UNIT 2; AND BRUNSWICK, UNITS 1, 2 OF ONLINE MONITORING (EPID L-2025-LRM-0080)
On August 4, 2025, a partially closed public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Duke Energy Carolinas, LLC (Duke Energy or the licensee). The purpose of the meeting was to discuss a future license amendment request (LAR) which proposes to revise the Technical Specifications (TSs) and add an online monitoring (OLM) Program. This LAR proposes to use OLM methodology as the technical basis to switch from time-based surveillance frequency for channel calibrations to a condition-based calibration frequency based on OLM results.
The meeting notice and agenda, dated July 7, 2025, is available at Agencywide Documents and Access Management System (ADAMS) Accession No. ML25188A017. The licensee presented slides that are available at ML25210A159. The business portion of the meeting regarding the Title 10 of the Code of Federal Regulations Section 2.390 withholding letter dated July 31, 2025, is available at ML25211A159. A list of attendees is provided in the Enclosure.
The licensee presented the information contained in the meeting slides which are summarized below:
OLM provides for condition monitoring of various applications to optimize the maintenance of transmitters used as sensor input to control and protection systems. This program consists of collecting transmitter data throughout an operating, then analyzes the data to detect transmitter drift or degradation in dynamic performance, and identification of transmitters that warrant a calibration check. Further this program has been implemented in other nuclear facilities and aligns with industry standards and guidelines.
The application of the OLM program is based on the Submittal of A Version of Analysis and Measurement Services Corporation Topical Report AMS-TR-0720R2, Online Monitoring Technology to Extend Calibration Intervals of Nuclear Plant Pressure Transmitters, (ML21235A493). The implementation process for OLM involves selecting applicable transmitters, their setpoints, and calculating backstops.
The NRC staff asked the licensee if any deviations from the topical report would be submitted with the future LAR and the licensee replied that there werent any planned deviations.
The NRC staff also inquired if the upcoming submittal would be applying any lessons learned from the current OLM license amendments audits currently underway with the NRC. The licensee said experience from those activities would be incorporated into the future submittal.
The licensee stated that there will be justifications provided for certain transmitters to be included in the proposed OLM program. Further, the licensee also stated that most of the justifications for these transmitter models and setpoint coverage requirements will follow similar justifications made on prior submittals, and lastly that similarity analyses will be provided for certain cases for OLM transmitter inclusion within the LAR.
The NRC staff then opened the meeting for public comments and questions. There were no public comments or questions so the public portion of the meeting was closed.
The NRC staff then opened the business portion of the meeting which was completed after the licensees presentation and the meeting was then closed.
There were no members of the public in attendance. The NRC staff did not make any regulatory decisions during the meeting.
Please direct any inquiries to John.Klos@nrc.gov.
/RA/
John Klos, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-413, 50-414, 50-325, 50-324, 50-369, 50-370, and 50-261
Enclosure:
List of Attendees cc: Listserv
Enclosure LIST OF ATTENDEES AUGUST 4, 2025, PUBLIC MEETING WITH DUKE ENERGY FOR PLANNED ONLINE MONITORING LICENSE AMENDMENT Name Organization John Klos U.S. Nuclear Regulatory Commission (NRC)
Norbert Carte NRC Aaron Armstrong NRC Gilberto Blas NRC Jack Minzer Bryant NRC Zach Turner NRC Chris Safouri NRC Terrell Felder Duke Energy Carolinas, LLC (Duke)
Ryan Treadway Duke Joshua Brian Duc Duke Greg Morton Duke
ADAMS Package: ML25223A076 Meeting Notice: ML25188A017 Meeting Summary: ML25223A126 via eConcurrence NRC-001 OFFICE NRR/DORL/LPL2-1/PM*
NRR/DORL/LPL2-1/LA*
NRR/DEX/EICB/BC*
NAME JKlos KZeleznock FSakco DATE 8/12/25 8/18/2025 8/18/2025 OFFICE NRR/DRO/IQVB/BC*
NRR/DSS/STSB/BC*
NRR/DORL/LPL2-1/BC (A)*
NAME KKavanagh SMehta MMarkley (EMiller for)
DATE 8/19/2025 8/20/2025 8/21/2025 OFFICE NRR/DORL/LPL2-1/PM*
NAME JKlos DATE 8/21/2025