IR 05000397/2026013
| ML26084A531 | |
| Person / Time | |
|---|---|
| Site: | Columbia  (NPF-021) |
| Issue date: | 03/30/2026 |
| From: | Wes Cullum NRC/RGN-IV/DORS/EB1 |
| To: | Schuetz R Energy Northwest |
| Shared Package | |
| IR 2026013 | List: |
| References | |
| IR 2026013 | |
| Download: ML26084A531 (0) | |
Text
March 30, 2026
SUBJECT:
COLUMBIA GENERATING STATION - AGE RELATED DEGRADATION INSPECTION REPORT 05000397/2026013
Dear Robert Schuetz:
On February 26, 2026, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Columbia Generating Station and discussed the results of this inspection with Alex Javorik 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, Wes L. Cullum, Chief Engineering Branch 1 Division of Operating Reactor Safety Docket No. 05000397 License No. NPF-21
Enclosure:
As stated
Inspection Report
Docket Number:
05000397
License Number:
Report Number:
Enterprise Identifier:
I-2026-013-0004
Licensee:
Energy Northwest
Facility:
Columbia Generating Station
Location:
Richland, WA
Inspection Dates:
February 23, 2026 to February 26, 2026
Inspectors:
D. Bryen, Reactor Inspector
R. Kumana, Senior Project Engineer
J. Talavera, Resident Inspector
Approved By:
Wes L. Cullum, Chief
Engineering Branch 1
Division of Operating Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (programs) inspection at Columbia Generating 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
71111.21N.04 - Age-Related Degradation Age-Related Degradation (6 Samples)
- (1) HPCS Battery B1
- (2) Startup Transformer E-TR-S
- (3) Reactor Core Isolation Cooling turbine & lube oil heat exchanger
- (4) Diesel Generator fuel oil storage tanks
- (5) Condensate Storage Tanks
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On February 26, 2026, the inspectors presented the inspection results to Alex Javorik and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Calculations
5.32.10
Standby Service Water System - Piping Schedule
Calculations
Corrective Action
Documents
CR-
255826, 00336352, 00346741, 00358771, 00365921,
00366167, 00404166, 00408717, 00410392, 00410610,
00410803, 00410823, 00412987, 00413335, 00413987,
00415234, 00429681, 00433271, 00435503, 00440099,
00445850, 00446701, 00452699, 00457153, 00462457,
00463961, 00465226, 00467559, 00471984, 00474641
Corrective Action
Documents
Resulting from
Inspection
CR-
00481209, 00481250
2-204-00-88-1
Condensate Storage Tank
6/12/1975
2-204-00-89-1
Condensate Storage Tank
6/11/1975
Drawings
M527-1
Flow Diagram Condensate Supply System
104
03312
Review of Minimum Wall Thickness for Replacement
Stainless Steel Piping Required Per AR 6271
06653
Calc 5.32.10 Rev. 2, Provide Wall Thickness Justification for
SW(35)-2 (Siphon Line)
Engineering
Changes
10678
Installation of backup control power transformers/transfer
switches for E-TR-Ml, M2, M3, M4 and E-TR-S
ACE-AR 366167
Apparent Cause Evaluation:
Broken Vane on RCIC Turbine Wheel
AR-EVAL
00366867
Evaluate FME Left in RCIC-DT-1
Engineering
Evaluations
TM-2192
Acceptance Criteria for Structural Evaluation of
Erosion/Corrosion Thinning in Piping Systems
71111.21N.04
Miscellaneous
AMPBD-BPTI
Aging Management Program Basis Document - Buried
Piping and Tanks Inspection Program
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
AMPBD-ESMP
Aging Management Program Basis Document - External
Surfaces Monitoring Program
AMPBD-FOC
Aging Management Program Basis Document - Fuel Oil
Chemistry Program
AMPBD-OCCW
Aging Management Program Basis Document - Open-Cycle
Cooling Water Program
AMPBD-RCIC
Aging Management Program Basis Document - Preventive
Maintenance - RCIC Turbine Casing
Final Safety Analysis Report
Amendment
(June
25)
LRAMR-M18
License Renewal Aging Management Review: Aging
Management Review of the Reactor Core Isolation Cooling
System
PMID 25000
ASHE-INSULATORS, TEST AND CLEAN 230KV
INSULATORS
06/24/2021
PMID 27405-01
RCIC-HX-2, Inspect, Clean and Eddy Current Test (Shell)
21
PMID 27405-02
RCIC-HX-2, Seating Surface and Tube Corrosion Inspection
(Shell)
21
PMID 9636-09
RCIC-DT-1, Overhaul RCIC Turbine
2004
TS
TECHNICAL SPECIFICATIONS
Amendment
27 (July
25)
TECHNICAL SPECIFICATIONS BASIS
Revision 144
(July 2025)
Shift and Daily Instrument Checks
103
PPM 10.1.13
Foreign Materials Controls for Systems and Components
ENG-PRG-03
License Renewal Implementation
ENG-PRG-09
License Renewal Structures Monitoring Program Inspections 2
Procedures
SW Spray Pond Average Sediment Depth Measurement
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
PPM 10.7.1
RCIC Turbine (RCIC-DT-1) Inspection/Repair/Overhaul
PWTP-2
Underground Piping and Tanks Integrity Program
SWP-CAP-01
Corrective Action Program
SYS-4-23
Maintenance Rule Structural Baseline Inspections
Work Orders
WO- 2012204, 02043228, 02043305, 02105750, 02134544,
2140807, 02140808, 02145878, 02163709, 02165217,
2167558, 02183335, 02185493, 02189150, 02189416,
2198835, 02202278, 02210413, 02211774, 02222660,
263590