IR 05000334/2025003

Integrated Inspection Report 05000334/2025003 and 05000412/2025003

ML25349A029
Person / Time
Site:	Beaver Valley
Issue date:	12/15/2025
From:	Matt Young Division of Operating Reactors
To:	Blair B Vistra Operations Company
References
IR 2025003
Download: ML25349A029 (0)

Text

December 15, 2025

SUBJECT:

BEAVER VALLEY POWER STATION, UNITS 1 AND 2 - INTEGRATED INSPECTION REPORT 05000334/2025003 AND 05000412/2025003

Dear Barry Blair:

On September 30, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Beaver Valley Power Station, Units 1 and 2. On November 19, 2025, the NRC inspectors discussed the results of this inspection with Hope Gilliam, Manager, Nuclear Regulatory Compliance, and other members of your staff. The results of this inspection are documented in the enclosed report.

Due to the temporary cessation of government operations, which commenced on October 1, 2025, the NRC began operating under its Office of Management and Budget-approved plan for operations during a lapse in appropriations. Consistent with that plan, the NRC operated at reduced staffing levels throughout the duration of the shutdown. However, the NRC continued to perform critical health and safety functions and make progress on other high-priority activities associated with the ADVANCE Act and Executive Order 14300. On November 13, 2025, following the passage of a continuing resolution, the NRC resumed normal operations. However, due to the 43-day lapse in normal operations, the Office of Nuclear Reactor Regulation granted the Regional Offices an extension on the issuance of the calendar year 2025, third quarter integrated inspection reports normally issued by November 15, 2025, to December 31, 2025. The NRC will resume the routine cycle of issuing inspection reports on a quarterly basis beginning with the calendar year 2025, fourth quarter integrated inspection reports, which will be issued 45 days after the fourth quarter ends on December 31, 2025.

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, Matt R. Young, Chief Projects Branch 2 Division of Operating Reactor Safety

Docket Nos. 05000334 and 05000412 License Nos. DPR-66 and NPF-73

Enclosure:

As stated

Inspection Report

Docket Numbers:

05000334 and 05000412

License Numbers:

DPR-66 and NPF-73

Report Numbers:

05000334/2025003 and 05000412/2025003

Licensee:

Vistra Operations Company, LLC

Facility:

Beaver Valley Power Station, Units 1 and 2

Location:

Shippingport, PA

Inspection Dates:

July 01, 2025 to September 30, 2025

Inspectors:

N. Day, Senior Resident Inspector

A. Nugent, Resident Inspector

R. Rolph, Senior Health Physicist

Approved By:

Matt R. Young, Chief

Projects Branch 2

Division of Operating Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees

performance by conducting an integrated inspection at Beaver Valley Power Station, Units 1

and 2, 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.

PLANT STATUS

Units 1 and 2 operated at or near rated thermal power for the entire inspection period.

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 performed activities described in IMC 2515,

Appendix DProperty "Inspection Manual Chapter" (as page type) with input value "NRC Inspection Manual 2515,</br></br>Appendix D" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process., Plant Status, observed risk significant activities, and completed on-site portions of

IPs. 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

71111.04 - Equipment Alignment

Partial Walkdown Sample (IP Section 03.01) (1 Sample)

The inspectors evaluated system configurations during partial walkdowns of the following

systems/trains:

(1)

Unit 2, charging pump lube oil cooler lineup per drawing, 2RM-0430-002, Revision

47, July 18, 2025

Complete Walkdown Sample (IP Section 03.02) (1 Sample)

(1)

Unit 1, river water system, July 7, 2025

71111.05 - Fire Protection

Fire Area Walkdown and Inspection Sample (IP Section 03.01) (5 Samples)

The inspectors evaluated the implementation of the fire protection program by conducting a

walkdown and performing a review to verify program compliance, equipment functionality,

material condition, and operational readiness of the following fire areas:

(1)

Unit 1, emergency diesel generator (EDG) rooms, fire area 1PFP-DG-BX-735,

July 18, 2025

(2)

Unit 2, safeguards building 718' elevation, fire areas SG-1S and SG-1N,

August 5, 2025

(3)

Unit 1, yard area with focus on independent spent fuel storage installation loading

activates, fire area 1PFP-YARD-7354, August 5, 2025

(4)

Units 1 and 2, flex building, fire area 1/2PFP-FLEX, August 6, 2025

(5)

Unit 1, safeguards building 751' elevation, fire area PT-1, August 26, 2025

Fire Brigade Drill Performance Sample (IP Section 03.02) (1 Sample)

(1)

The inspectors evaluated the onsite fire brigade training and performance during an

unannounced fire drill on July 1, 2025.

71111.06 - Flood Protection Measures

Flooding Sample (IP Section 03.01) (1 Sample)

(1)

The inspectors evaluated internal flooding mitigation protections in the Unit 1, EDG

rooms on August 29, 2025.

71111.07A - Heat Exchanger/Sink Performance

Annual Review (IP Section 03.01) (1 Sample)

The inspectors evaluated readiness and performance of:

(1)

Unit 2, primary component cooling water heat exchanger 'B' per Work Order (WO)

200916466, July 8, 2025

71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance

Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (1 Sample)

(1)

The inspectors observed and evaluated licensed operator performance in the control

room during Unit 2, 'B' steam generator performance testing per WO 200968000 on

August 7, 2025.

Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)

(1)

The inspectors observed and evaluated loss of instrument air and loss of condenser

vacuum scenarios on July 31, 2025.

71111.12 - Maintenance Effectiveness

Maintenance Effectiveness (IP Section 03.01) (1 Sample)

The inspectors evaluated the effectiveness of maintenance to ensure the following

structures, systems, and components (SSCs) remain capable of performing their intended

function:

(1)

Unit 1, safety injection system, August 25, 2025

Aging Management (IP Section 03.03) (1 Sample)

The inspectors evaluated the effectiveness of the aging management program for the

following SSCs that did not meet their inspection or test acceptance criteria:

(1)

Unit 1, structures system monitoring failures of six instances of water submerged

medium voltage cabling in electrical manholes, the latest of which occurred,

May 21, 2025

71111.13 - Maintenance Risk Assessments and Emergent Work Control

Risk Assessment and Management Sample (IP Section 03.01) (6 Samples)

The inspectors evaluated the accuracy and completeness of risk assessments for the

following planned and emergent work activities to ensure configuration changes and

appropriate work controls were addressed:

(1)

Unit 2, elevated risk for steam generator 'B' feedwater regulatory valve in manual,

with level manipulations to perform troubleshooting per WO 200968001, July 9, 2025

(2)

Unit 1, system station service transformer work risk evaluation (no protected

equipment in normal switchgear), July 14, 2025

(3)

Unit 2, motor-driven auxiliary feedwater pump 'A' maintaining availability per

dedicated operator actions during quarterly test 2OST-24.2, July 30, 2025

(4)

Unit 1, motor-driven auxiliary feedwater pump 'B' work and plant protection,

August 20, 2025

(5)

Unit 1, maintenance performed on protected equipment ('C' high head safety injection

pump cabinet), August 25, 2025

(6)

Unit 1, refuel outage 30 risk plan, September 24, 2025

71111.15 - Operability Determinations and Functionality Assessments

Operability Determination or Functionality Assessment (IP Section 03.01) (4 Samples)

The inspectors evaluated the licensee's justifications and actions associated with the

following operability determinations and functionality assessments:

(1)

Unit 1, recirculation spray pump 2A seal leakage as discussed in Condition Report

(CR) 2025-04784, July 2, 2025

(2)

Unit 2, EDG 2-2 operability determination upon retest following failed surveillance,

July 22, 2025

(3)

Unit 1, reactor component cooling water valve, CCR-251, closed and locked to satisfy

technical specification actions, July 29, 2025

(4)

Unit 1, operability determination following discoloration and residue buildup on 1-4

battery, August 6, 2025

71111.24 - Testing and Maintenance of Equipment Important to Risk

The inspectors evaluated the following testing and maintenance activities to verify system

operability and/or functionality:

Post-Maintenance Testing (PMT) (IP Section 03.01) (6 Samples)

(1)

Unit 1, station service system transformer relay, ACB 342D, auxiliary relay per WO 200908513, July 14, 2025

(2)

Unit 2, 2-2 EDG monthly test per 2OST-36.2, Revision 91, following air start system

maintenance, July 23, 2025

(3)

Unit 1, containment penetration 20 relief valve replacement per WO 200971940,

August 6, 2025

(4)

Unit 2, 'B' steam generator level control test following recalibration of feed control

signal per WO 200968001, August 7, 2025

(5)

Unit 1, low head safety injection pump 'A' motor post-maintenance run per 1OST-

11.1, August 8, 2025

(6)

Unit 2, 'B' high head safety injection pump test, per 2OST-7.5, following recalibration

of pump suction pressure gauge, September 15, 2025

Surveillance Testing (IP Section 03.01) (3 Samples)

(1)

Unit 1, 1-1 EDG undervoltage start signal test per 1OST-36.22A, Revision 11,

July 2, 2025

(2)

Unit 2, AC/DC alignment verification per 2OST.36.08, September 27, 2025

(3)

Unit 1, remote shutdown panel instrumentation channel check per 1OST-45.2,

September 29, 2025

Inservice Testing (IST) (IP Section 03.01) (1 Sample)

(1)

Unit 2, standby service water pump 'B' comprehensive test per 2OST-30.1B,

July 18, 2025

71114.06 - Drill Evaluation

Additional Drill and/or Training Evolution (1 Sample)

(1)

Gold team emergency preparedness drill, August 14, 2025

RADIATION SAFETY

71124.06 - Radioactive Gaseous and Liquid Effluent Treatment

Walkdowns and Observations (IP Section 03.01) (4 Samples)

The inspectors evaluated the following radioactive effluent systems during walkdowns:

(1)

Unit 1, supplemental leak collection and release system (SLCRS), discharge to the

top of the containment

(2)

Unit 1, auxiliary building ventilation vent system discharge to main plant vent stack

(3)

Unit 2, auxiliary building ventilation vent system discharge to main plant vent stack

(4)

Unit 2, SLCRS, discharge to the top of the containment

Sampling and Analysis (IP Section 03.02) (4 Samples)

Inspectors evaluated the following effluent samples, sampling processes and compensatory

samples:

(1)

Unit 1, process vent weekly particulate, iodine and noble gas sample from GW-109

(2)

Unit 1, weekly particulate, iodine, and gas sample from VS-110 monitor for the

SLCRS

(3)

Unit 2, compensatory noble gas sample from RM-2HVS-RQ 109 for the SLCRS

(4)

Unit 2, compensatory noble gas sample from 2RMQ-303 gaseous waste storage tank

vault and decontamination building roof exhaust

Dose Calculations (IP Section 03.03) (2 Samples)

The inspectors evaluated the following dose calculations:

(1)

Unit 1, reactor containment building discharge RWDA-G-U1GB2024-055,

April 14, 2024, at 0454 to April 14, 2024, at 0825

(2)

Unit 2, gaseous discharge via the Units 1 and 2 process vent RWDA-G-U2GB2023-

081, May 20, 2023 to May 26, 2023

Abnormal Discharges (IP Section 03.04) (1 Sample)

The inspectors evaluated the following abnormal discharges:

(1)

There were no abnormal discharges during the triennial period of this inspection.

OTHER ACTIVITIES - BASELINE

71151 - Performance Indicator Verification

The inspectors verified licensee performance indicators submittals listed below:

MS08: Heat Removal Systems (IP Section 02.07) (2 Samples)

(1)

Unit 1, July 1, 2024 through June 30, 2025

(2)

Unit 2, July 1, 2024 through June 30, 2025

MS09: Residual Heat Removal Systems (IP Section 02.08) (2 Samples)

(1)

Unit 1, July 1, 2024 through June 30, 2025

(2)

Unit 2, July 1, 2024 through June 30, 2025

MS10: Cooling Water Support Systems (IP Section 02.09) (2 Samples)

(1)

Unit 1, July 1, 2024 through June 30, 2025

(2)

Unit 2, July 1, 2024 through June 30, 2025

71152A - Annual Follow-up Problem Identification and Resolution

Annual Follow-up of Selected Issues (Section 03.03) (1 Sample)

The inspectors reviewed the licensees implementation of its corrective action program

related to the following issues:

(1)

The inspectors reviewed CR-2025-05234 and corrective action procedures to assess

the effectiveness of the licensee in prioritizing and evaluating the Unit 2 EDG 2-2

starting air system. In addition, the inspectors reviewed the licensee maintenance

related to SOV203-1, the air start solenoid valve, per WO 200977881, to verify that

maintenance was effective so that both air start subsystems will perform their

intended function when required. The inspectors verified the design, testing strategy

and corrective actions were appropriate.

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

• On November 19, 2025, the inspectors presented the integrated inspection results to

Hope Gilliam, Manager, Nuclear Regulatory Compliance, and other members of the

licensee staff.

On September 18, 2025, the inspectors presented the 71124.06 - radioactive gaseous

and liquid effluent treatment inspection results to Andrew Scott, Operations Director, and

other members of the licensee staff.