IR 05000220/2025501
| ML25356A000 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 12/22/2025 |
| From: | Brice Bickett Decommissioning, ISFSI, and Reactor Health Physics Branch |
| To: | Mudrick C Constellation Energy Generation, Constellation Nuclear |
| References | |
| IR 2025501 | |
| Download: ML25356A000 (0) | |
Text
December 22, 2025
SUBJECT:
NINE MILE POINT NUCLEAR STATION, UNITS 1 AND 2 - EMERGENCY PREPAREDNESS BIENNIAL EXERCISE INSPECTION REPORT 05000220/2025501 AND 05000410/2025501
Dear Christopher Mudrick:
On December 18, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Nine Mile Point Nuclear Station and discussed the results of this inspection with Tim Peters, Site Vice President, and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
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 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely, Brice A. Bickett, Chief Security, Emergency Preparedness and Incident Response Branch Division of Radiological Safety & Security
Docket Nos. 05000220 and 05000410 License Nos. DPR-63 and NPF-69
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000220 and 05000410
License Numbers:
Report Numbers:
05000220/2025501 and 05000410/2025501
Enterprise Identifier: I-2025-501-0000
Licensee:
Constellation Nuclear
Facility:
Nine Mile Point Nuclear Station, Units 1 and 2
Location:
Oswego, NY
Inspection Dates:
December 8, 2025 to December 11, 2025
Inspectors:
Stephanie Mercurio, Emergency Preparedness Inspector
Approved By:
Brice A. Bickett, Chief
Security, Emergency Preparedness and Incident Response Branch
Division of Radiological Safety & Security
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an emergency preparedness biennial exercise inspection at Nine Mile Point Nuclear Station, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
71114.01 - Exercise Evaluation
Inspection Review (IP Section 02.01-02.11) (1 Sample)
The licensee performed a biennial emergency preparedness exercise in accordance with Appendix E.IV.F.2.b and 2.c. This exercise occurred during the 2025 Government Shutdown, and, as a result, the inspectors had to review all available documentation to support the evaluation of this exercise per IP 71114.01 and has determined that the licensee has complied with all applicable regulations.
- (1) The exercise scenario simulated a steam line break and fuel cladding failure resulting in loss of the reactor coolant system, loss of containment, and increasing radiation levels requiring integration of offsite resources with onsite response on October 07, 2025.
71114.04 - Emergency Action Level and Emergency Plan Changes
Inspection Review (IP Section 02.01-02.03) (1 Sample)
- (1) The inspectors evaluated the following submitted Emergency Action Level and Emergency Plan changes:
- 24-49, EP-AA-1000, Standardized Radiological Emergency Plan, Revision 34
- 24-52, EP-MA-121-1002, Alert and Notification System (ANS) Program, Revision 16
- 25-13, EP-AA-110-200-F-06/F-21, Nine Mile Point Flow Rate Calculation, Revision B/Nine Mile Point Meteorological Data Acquisition, Revision E
- 25-22, EP-AA-122-100, Drill and Exercise Planning and Scheduling, Revision
- 25-30, SY-AA-101-121, Security Response to the Station Emergency Plan, Revision 13
This evaluation does not constitute NRC approval.
71114.08 - Exercise Evaluation - Scenario Review
Inspection Review (IP Section 02.01 - 02.04) (1 Sample)
- (1) The inspectors reviewed and evaluated the proposed scenario for the biennial emergency plan exercise on September 04,
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification
The inspectors verified licensee performance indicators submittals listed below:
EP01: Drill/Exercise Performance (DEP) Sample (IP Section 02.12)===
- (1) July 1, 2024 through September 30, 2025
EP02: Emergency Response Organization (ERO) Drill Participation (IP Section 02.13) (1 Sample)
- (1) July 1, 2024 through September 30, 2025
EP04: Emergency Response Facility and Equipment Readiness (ERFER) (IP Section 02.14) (1 Sample)
This is a new NRC performance indicator, introduced in Nuclear Energy Institute 99-02, Revision 8 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML24331A114). Licensee began collecting data for this performance indicator on January 1, 2025.
- (1) January 1, 2025 through September 30,
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On December 18, 2025, the inspectors presented the emergency preparedness biennial exercise inspection results to Tim Peters, Site Vice President, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Miscellaneous
25 Nine Mile Point NRC Graded Exercise Scenario
Revision 1
Constellation Standardized Radiological Emergency Plan
Revision 34
Radiological Emergency Plan Annex for Nine Mile Point
Station
Revision 10