IR 05000499/2025010

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License Renewal Inspection Report 05000499/2025010
ML25356A370
Person / Time
Site: South Texas STP Nuclear Operating Company icon.png
Issue date: 12/30/2025
From: Wes Cullum
NRC/RGN-IV/DORS/EB2
To: Kharrl C
South Texas
References
IR 2025010
Download: ML25356A370 (0)


Text

December 30, 2025

SUBJECT:

SOUTH TEXAS PROJECT STEAM ELECTRIC STATION, UNIT 2 - LICENSE RENEWAL INSPECTION REPORT 05000499/2025010

Dear Charles Kharrl:

On December 15, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at South Texas Project Steam Electric Station, Unit 2 and discussed the results of this inspection with Chris Georgeson, General Manager, Strategic Project & Engineering Design 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. 05000499 License No. NPF-80

Enclosure:

As stated

Inspection Report

Docket Number:

05000499

License Number:

NPF-80

Report Number:

05000499/2025010

Enterprise Identifier:

I-2025-010-0020

Licensee:

STP Nuclear Operating Company

Facility:

South Texas Project Steam Electric Station, Units 1 and 2

Location:

Wadsworth, TX 77483

Inspection Dates:

December 8 - 15, 2025

Inspectors:

G. Pick, Senior Reactor Inspector

A. Rowe, Reactor 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 license renewal inspection at South Texas Project Steam Electric Station, Unit 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.

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures in effect at the beginning of the inspection unless otherwise noted. Currently approved inspection procedures 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 inspection procedure requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter 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.

OTHER ACTIVITIES

- TEMPORARY INSTRUCTIONS, INFREQUENT AND ABNORMAL

===71003 - Post-Approval Site Inspection for License Renewal The inspectors performed an in-office Phase 1 inspection to review aging management programs and documentation. The planned onsite inspection to evaluate the material condition of South Texas Project, Unit 2, prior to the unit entering the period of extended operation, could not be completed because of the lapse in government activities. The period of extended operation is an additional 20 years beyond the original 40-year licensed term and begins after midnight on December 15, 2028.

During this in-office inspection, the inspectors evaluated whether the licensee:

(1) completed the necessary actions to comply with the license condition and commitments related to aging management; and
(2) implemented programs that agreed with those approved in the safety evaluation report and described in the updated final safety analysis report. NRC issued the safety evaluation report, Safety Evaluation Report Related to the License Renewal of South Texas Project, Units 1 and 2 (ML17146B242) in June 2017. Specific activities evaluated during this inspection are described in the following paragraphs.

Post-Approval Site Inspection for License Renewal===

(1) Plant Condition Monitoring Walkdowns As described above, the inspectors did not complete the planned condition monitoring walk downs of normally inaccessible areas of the facility (i.e., containment). The walk downs allow inspectors to evaluate structures, systems, and components for signs of aging, such as corrosion on piping and supports, corrosion of cable trays, water intrusion, cracking, and spalling of concrete.

This aspect of the inspection will have another opportunity to be conducted during the next Unit 2 refueling outage estimated Spring 2027.

(2)19A.1.4 Boric Acid Corrosion and Commitment 2 This existing program manages aging effects for loss of material and corrosion of mechanical connector contact surfaces caused by boric acid leakage. The program monitors nearby mechanical, electrical, and structural components that could be affected by boric acid corrosion from systems that contain treated borated water.

Commitment 2 specified:

  • Enhance the procedures to state that susceptible components adjacent to potential leakage sources include electrical components and connectors. The program will also state that it is applicable to other materials (such as aluminum and copper alloy).

The inspectors reviewed the aging management program basis document, work orders, condition reports, and implementing procedures, as well as interviewed the program owner. The inspectors determined that procedure 0PGP03-ZE-0133, Boric Acid Corrosion Control Program, specifically includes aluminum and copper alloy materials and electrical components and connectors, as specified in commitment 2.

The inspectors reviewed several corrective action documents that evaluated and documented the actions taken to resolve boric acid leakage. The inspectors determined that the licensee walked down the reactor containment building during each refueling outage and walked down the electrical auxiliary building and mechanical auxiliary building areas on each unit in areas containing reactor coolant system fluid looking for boric acid leaks.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(3)19A.1.6 Flow-Accelerated Corrosion This existing program manages aging effects related to wall thinning caused by flow-accelerated corrosion on the internal surfaces of carbon or low alloy steel piping and system components that contain high energy fluids (both single and two phase). The program also manages wall thinning caused by erosion/corrosion, cavitation, flashing, and impingement damage.

The inspectors reviewed the aging management program basis document, work orders, examination reports, engineering evaluations, condition reports, and implementing procedures, as well as interviewed the program owner. The inspectors determined that the program owner was knowledgeable of both flow-accelerated corrosion and erosion that resulted from erosion/corrosion, cavitation, flashing, and impingement damage. Procedure 0PGP04-ZA-0012, Flow Accelerated Corrosion Program, revision 8, utilized the electric power research institute CHECKWORKS program to manage flow-accelerated corrosion affecting carbon steel piping.

Procedure 0PGP04-ZA-0608, Erosion Program, revision 1, utilized FAC Manager web edition to manage erosion caused by erosion/corrosion, cavitation, flashing, and impingement damage on piping and components.

During discussions related to the basis for ongoing piping replacement, some confusion occurred related to which aging management program identified erosion/corrosion of ongoing essential cooling water piping replacements. Erosion had occurred on the essential cooling water piping, and two separate aging management programs discussed managing erosion of the piping (i.e., the open cycle cooling water and the flow-accelerated corrosion programs). The inspectors determined that the implementing procedures for each aging management program provided a clear delineation related to the purpose of each program. The licensee initiated condition report 25-11388 to ensure that they have alignment between the aging management programs and the implementing procedures.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(4)19A.1.8 Steam Generator Tubing Integrity and Commitment 48 This existing program manages aging effects on steam generator tubes, plugs, sleeves, divider plate assemblies, tube-to-tubesheet welds, primary head (interior surfaces), tubesheet(s) (primary side), and secondary side components contained within the steam generator (i.e., secondary side internals).

Commitment 48 specified:

Enhance the steam generator tubing integrity program procedures to:

  • Visually inspect steam generator head internal areas (head interior surfaces, divider plate assemblies, tubesheets (primary side) and tube-to-tubesheet welds for signs of cracking or loss of material.
  • Conduct inspections at least every 72 effective full power months or every third refueling outage whichever results in more frequent inspections.
  • Evaluate the acceptability of any degraded conditions of the divider plate assemblies, tubesheets (primary side), tube-to-tubesheet welds, and primary head (interior surfaces) on a case-by-case basis.

The inspectors reviewed the aging management program basis document, implementing procedures, condition reports, work orders, inspection results, and license amendment, as well as interviewed the program owner. The inspectors determined that procedures 0PGP03-ZO-0044, Steam Generator Management Program, and 0PSP11-RC-0014, Steam Generator Inspection, required inspecting the listed steam generator internals and welds for signs of cracking or loss of material, evaluating the acceptability of degraded conditions on a case-by-case basis, and performing the inspections at the required frequency.

On December 9, 2021, NRC approved license amendment No. 209 implementing TSTF-577, Revised Frequencies for Steam Generator Tube Inspections. This amendment changed the steam generator inspection frequency from 72 to 96 effective full power months and from every third to every fifth refueling outage for thermally treated Alloy 690 steam generator tubing. The inspectors determined that the licensee appropriately changed the technical specifications and implementing procedures 0PGP03-ZO-0044 and 0PSP11-RC-0014. The inspectors determined the licensee had revised updated final safety analysis report table 19A.4-1, License Renewal Commitments, commitment 48 to reflect 96 effective full power months but had not changed updated final safety analysis report section 19A.1.8 Steam Generator Tube Integrity. The licensee initiated condition report 25-11389 to correct the updated final safety analysis report section. The inspectors determined the licensee implemented commitment 48.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(5)19A.1.23 Lubricating Oil Analysis and Commitment 18 This existing program manages aging effects related to loss of material, and reduction of heat transfer for components exposed to lubricating and hydraulic oil.

Commitment 18 specified:

  • Enhance the lubricating oil analysis program procedures to analyze the particle count of the lubricating oil for the centrifugal charging pumps and require evaluating and trending the sample analysis data results, for which no acceptance criteria is specified, against baseline data and data from previous samples to determine the acceptability of oil for continued use.

The inspectors reviewed the aging management program basis document, implementing procedures, work orders, and analysis results, as well as interviewed the program owner. The inspectors verified procedure 0PGP03-ZM-0004, Lubrication Program, revision 22, step 8.3.1 implemented commitment 18. In addition, the licensee had required the particle count and trending of lubricating oil for the reactor coolant pump motors and the various diesel generators.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(6)19A.1.30 10 CFR Part 50, Appendix J and Commitment 24 This existing program manages aging effects related to leakage from the containment, containment isolation valves, and containment penetrations for systems and components penetrating the primary containment. This program must meet the allowable leakage rate limits specified in the technical specifications.

Commitment 24 specified:

  • Establishing a surveillance frequency of 15 years following a successful type A test.

The inspectors reviewed the aging management program basis document, implementing procedures, work orders, and completed inspection results, as well as interviewed the program owner. The inspectors confirmed that procedure 0PSP11-ZA-0005, Local Leakage Rate Test Calculations, Guidelines, and Program, revision 22, specified the requirements to conduct integrated leak rate tests (type A)every 15 years and met commitment 24. The inspectors determined that the surveillance activities for the integrated leak rate tests had a 12-year frequency to ensure that the 15-year interval would not be exceeded since it does not allow for a grace period. The inspectors reviewed local leak rate testing results, as well as the last performance of the integrated leak rate test results for each unit, that demonstrated the licensee remained well with technical specification limits.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(7)19A.1.34 Nickel Alloy Aging Management and Commitment 31 (part A, reactor coolant system components)

This existing program manages aging effects by using various visual, surface, and volumetric examination techniques for early detection of primary water stress corrosion cracking in Nickel-Alloy 600 nozzle components and nickel-alloy penetration nozzles welded to the reactor pressure vessel closure heads exposed to reactor coolant.

Commitment 31, part A specified:

For reactor coolant system nickel-alloy pressure boundary components:

  • Implement applicable NRC orders, bulletins and generic letters associated with nickel-alloys,
  • Implement staff-accepted industry guidelines,
  • Participate in industry initiatives, such as owners group programs and the Electric Power Research Institute materials reliability program, for managing aging effects associated with nickel-alloys, and
  • Not less than 24 months before entering the period of extended operation, submit an inspection plan for reactor coolant system nickel-alloy pressure boundary components to the NRC for review and approval.

The inspectors reviewed the aging management program basis document, implementing procedures, condition reports and completed inspection results, as well as interviewed the program owner. The inspectors confirmed that procedures 0PGP04-ZE-0006, Alloy Materials Management Program, and 0PGP04-ZA-0013, Reactor Coolant System Materials Management Program, incorporated applicable NRC orders, code cases, industry guidelines and industry initiatives as expected. The inspectors determined the program owner participated in the PWR owners group programs and Electric Power Research Institute materials reliability program, by serving on several materials reliability program focus groups. The inspectors verified the licensee submitted the nickel-alloy pressure boundary components inspection plan to the NRC as specified in letter NOC-AE-25004119 Nickel Alloy Inspection Plan, dated July 17, 2025. The inspectors determined the licensee implemented commitment 31, part A.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(8)19A.1.39 Protective Coating Monitoring and Maintenance Program and Commitment 40 This existing program manages aging effects related to degradation of accessible service level 1 coatings inside containment, as defined in regulatory guide 1.54, Service Level I, II, and III Protective Coatings Applied to Nuclear Power Plants, revision 2.

Commitment 40 specified:

Enhance the protective coating monitoring and maintenance program procedures to include:

  • Parameters monitored or inspected include visible defects, such as blistering, cracking, flaking, peeling, rusting, and physical damage, as specified in ASTM D 5163-08,
  • Inspection frequencies, personnel qualifications, and inspection plans, methods and equipment meet the requirements of ASTM D 5163-08,
  • Performing a pre-inspection review of the previous two monitoring report results to identify areas needing repair during the same outage, during the next available outage, or re-evaluated in next available outage,
  • Establishing a standardized coating condition assessment report form that will list identified coatings found intact with no defects identified and coatings not inspected that includes the basis why the inspection cannot be conducted,
  • Establishing a standardized coating condition assessment report that will include written and/or photographic documentation of coating inspection areas, failures, and defects, and
  • Performing destructive/non-destructive tests by individuals trained in the applicable referenced standards.

The inspectors reviewed the aging management program basis document, implementing procedures, work orders, and completed inspection results, as well as interviewed the program owner. The inspectors confirmed that procedure 0PMP06-ZD-0001, Paints and Coatings, revision 16, generally, incorporated the requirements described in commitment 40. Specifically, step 6.11.2.4 required documenting and inspecting for blistering, cracking, flaking, peeling, rusting and physical damage. Step 6.13 specified the frequency for conducting the inspections, required a pre-inspection review of the previous two inspection reports, and required performing destructive and non-destructive tests by qualified individuals.

While reviewing the personnel qualification requirements, the inspectors determined that the licensee referenced ASTM D 7108, Standard Guide for Establishing Qualifications for a Nuclear Coatings Specialist, and ASTM D 5428, Standard Guide for Developing a Training Program for Personnel Performing Coating Work Inspection for Nuclear Facilities, but did not reference ASTM D 5163, Standard Guide for Establishing a Program for Condition Assessment of Coating Service Level I Coating Systems in Nuclear Power Plants, as specified in the commitment in procedure 0PMP06-ZD-0001. In addition, the inspectors determined that the licensee had a standardized inspection form that established criteria for the coating conditions (repair during the same outage, during the next available outage, or re-evaluated in next available outage). During interviews, the inspectors learned that the program owner completed an excel spreadsheet coating form and pasted it into the inspection report. However, procedure 0PMP06-ZD-0001 did not have a model of the standardized coatings assessment report that discussed the acceptance criteria and required photographs. The licensee initiated condition report 25-11327 to clarify the reference to ASTM D5163 listed in the commitment and to incorporate the standardized assessment form formally into the procedure. With these changes the inspectors determined the licensee met commitment 40.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

(9) Standalone Commitments The updated final safety analysis report, chapter 19A, License Renewal, table 19A.4-1 included several commitments that the licensee identified as standalone. The inspectors reviewed the condition reports associated with the commitments, referenced correspondence, associated procedures or other implementing documents, and interviewed the license renewal implementation coordinator. The inspectors reviewed any applicable inspection results.

Commitment 29 and 41 - Operating Experience These commitments provided specific guidelines related to incorporating industry operating experience beginning 10 years prior to the units entering the period of extended operation and required enhancing the existing operating experience program.

Commitment 29 specified:

  • Within 10 years prior to entering the period of extended operation, evaluate and incorporate into each aging management program any additional industry and plant-specific applicable operating experience as it becomes available.

Also, if new aging effects are identified, develop a new aging management program, if necessary, so that the aging effects will be managed during the period of extended operation.

Commitment 41 specified:

Enhance the operating experience program and corrective action program for managing the effects of aging to:

  • Add license renewal interim staff guidance and revisions to NUREG-1801, Generic Aging Lessons Learned (GALL) Report, to the operating experience program procedure as sources of information,
  • Revise the operating experience procedure to include aging effects to the list of characteristics for determining applicability of operating experience that may require further evaluation. A screened-in evaluation should consider (a)systems, structures, or components,
(b) materials,
(c) environments,
(d) aging effects,
(e) aging mechanisms, and
(f) aging management programs,
  • Review the corrective action program event codes to determine if additional codes are needed to ensure age-related degradation effects are identified,
  • Perform a training needs analysis for those plant personnel, including aging management program owners, who screen, assign, evaluate, implement, and submit plant-specific and industry operating experience information for age related effects. Include in the analysis a requirement that individuals complete training before performing tasks, and a determination of the periodicity of the training.
  • Revise the operating experience program procedure to provide criteria for reporting plant-specific operating experience of age-related degradation.

The inspectors determined procedure 0PGP03-ZE-0083, License Renewal Implementation & Operating Experience Review, revision 4 included NUREG-1801 and interim staff guidance documents as sources of information, listed aging effects

((a) systems, structures, or components,

(b) materials,
(c) environments,
(d) aging effects,
(e) aging mechanisms, and
(f) aging management programs), and established operating experience reporting criteria. The procedure described the responsibilities for reviewing aging related operating experience and the codes required to be applied to condition reports. The inspectors determined that the training needs analysis required personnel dealing with age-related degradation and review of operating experience read procedure 0PGP03-ZE-0083 during their qualifications. The inspectors verified that the licensee established computer based training for their aging management program owners.

Commitment 33 - Transmission Conductors This commitment related to the components in the recovery path for loss of offsite power following a station blackout.

Commitment 33 specified:

  • Continue the periodic inspection of a sample of transmission conductor connections for loose connections using thermography as part of the preventive maintenance activities into the period of extended operation.

The inspectors verified that the licensee continued to perform thermography for electrical connections related to components required to recover from a station blackout.

Commitment 37 - Groundwater Samples The licensee agreed to take additional ground water samples at multiple locations and analyze them for pH, sulfates, and chlorides to confirm the ground water remained nonaggressive for underground structures.

Commitment 37 specified:

  • Beginning no later than September 2012, take groundwater samples at multiple locations around the site every three months for at least 24 consecutive months. Analyze the samples for pH, sulfates, and chlorides.

The inspectors verified that the licensee took the required groundwater samples for at least 24 consecutive months and had taken additional samples as part of their structures monitoring program. The completed samples demonstrated that the soil remained nonaggressive for concrete structures.

Commitment 42 - Reactor Head Closure Stud This standalone commitment detailed an additional visual inspection applicable only to Unit 2.

Commitment 42 specified:

  • Enhance the reactor head closure studs program procedures to perform a remote VT-1 of stud insert #30 (Unit 2 only) concurrent with the volumetric examination once every 10 years to verify no additional loss of bearing surface area.

The inspectors reviewed the inservice inspection program plan, revision 11 and confirmed the licensee incorporated a visual inspection of reactor pressure vessel stud Insert #30 once every 10 years. The inspectors reviewed VT 1/3-2019-093 inspection report and verified the 2019 inspection yielded acceptable results.

Commitment 43 - Seal Caps The licensee agreed to remove the seal caps and evaluate the check valve bolts for intergranular stress corrosion cracking.

Commitment 43 specified:

  • Remove the seal cap enclosures from the Unit 2 safety injection system check Valve SI0010A and from the Unit 1 and Unit 2 chemical volume control system check Valves CV0001, CV0002, CV0004, and CV0005 will be permanently removed. After removal of the seal cap enclosures, replace or inspect the component bolting for intergranular stress corrosion cracking.

The inspectors verified that the licensee had removed the seal caps from the identified check valves, tested the bolting for intergranular stress corrosion cracking, replaced the valve internals and reassembled the valves without seal caps to allow for future access to the check valves.

Commitment 46 - Essential Cooling Water Flaw Leakage Although the licensee had operating experience that leakage from a flaw progresses slowly and would be detected and repaired prior to significant leakage, this commitment required the licensee to identify maximum flaw sizes that would allow the piping to remain operable.

Commitment 46 specified:

  • Identify leak rates that could occur upstream of components supplied by the essential cooling water system to validate the maximum size flaw that would still allow the piping to perform its intended function. Provide the summary of this evaluation to the NRC for review.

The inspectors determined that the licensee completed the evaluation of maximum size flaws in different essential cooling water system piping diameters and submitted the evaluation to NRC in letter NOC-AE-14003135, Response to Requests for Additional Information for the Review of the South Texas Project, Units 1 and 2, License Renewal Application - Set 26 (TAC Nos. ME4936 and ME4937),enclosure E, Commitment No. 46, in response to RAI B2.1.37-4 Issue 5, Summary of the Results of the Leak Rate

Analysis.

The inspectors determined from the material provided by the licensee that the licensee met standalone commitments 29, 33, 37, 41, 42, 43, and 46.

Based on the review of the documents and discussions with licensee personnel, the inspectors did not identify any findings or violations of more than minor significance associated with this aging management program.

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 15, 2025, the inspectors presented the license renewal inspection results to Chris Georgeson, General Manager Strategic Project & Engineering Design and other members of the licensee staff.

The inspectors closed commitments 1, 6, 9, 16, 22, and 36 in Inspection Report 05000498/2024011.

The inspectors closed the following commitments during this inspection: 2, 18, 24, 29, 31 part A, 33, 37, 40, 41, 42, 43, 46, and 48.

The following commitments remain open: 3, 4, 5, 7, 8, 10, 11, 12, 13, 14, 15, 17, 19, 20, 21, 23, 25, 26, 27, 28, 30, 31 part B, 32, 34, 35, 38, 39, 44, 45, and 47.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

71003

Calculations

4302-03

South Texas Project Unit 1 FAC System Susceptibility

Evaluation (SSE)

71003

Corrective Action

Documents

CR

09-12611, 10-23276, 10-23604, 10-23606, 10-23608,

11-20856, 12-15170, 12-21155, 12-27257, 12-8955, 12-8990,

14-4793,15-848, 16-15866, 16-2406, 21-1850, 22-9889,

23-7647, 23-7655, 24-10830,24-174, 24-3176, 24-9485,

24-9489, 24-9602, 25-3172, 25-8849

71003

Corrective Action

Documents

Resulting from

Inspection

CR

25-11327, 25-11388, 25-11389, 24-11424

71003

Engineering

Evaluations

15-0230-TR-001

Erosion Program - Basis Document South Texas Project

Units 1 and 2

71003

Engineering

Evaluations

CREE 15-848-4

Question Related to Rising Unit 2 ILRT Results

3/22/2015

71003

Engineering

Evaluations

CREE 22-9889

23 Structures Monitoring Program inspection

2/17/2024

71003

Engineering

Evaluations

CREE 24-48-17

1RE25 Service Level I Coatings Conditions Assessment

Report

1/15/2025

71003

Engineering

Evaluations

CREE 24-48-7

2RE23 Service Level I Coatings Conditions Assessment

Report

1/14/2025

71003

Engineering

Evaluations

CREE 25-8733-4

CETNA evaluation

10/23/2025

71003

Miscellaneous

22 Flow Accelerated Corrosion Examination

Plan/Summary Report for 2RE22 South Texas Project

11/2022

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Electrical Generating Station, Unit 2

71003

Miscellaneous

24 Flow Accelerated Corrosion Examination

Plan/Summary Report for 2RE23 South Texas Project

Electrical Generating Station, Unit 2

4/2024

71003

Miscellaneous

23 Flow Accelerated Corrosion Examination

Plan/Summary Report for 1RE24 South Texas Project

Electrical Generating Station, Unit 1

4/2023

71003

Miscellaneous

Structure Monitoring Program, Ground Water Element

3/12/2014

71003

Miscellaneous

Unit 1 Integrated Leak Rate Test

11/4/2024

71003

Miscellaneous

Unit 2 Integrated Leak Rate Test

4/12/2021

71003

Miscellaneous

Inservice Inspection Program Plan

71003

Miscellaneous

South Texas Project, Unit 1 and 2 - Issuance of License

Amendment Nos. 224 and 209 to adopt TSTF-577, Rev 1

2/09/2021

71003

Miscellaneous

AE-NOC-

16002840

South Texas Project, Units 1 and 2 - Issuance of

Amendments Re: Request to Extend the 10 Year

Containment Integrated Leak Rate Test Frequency To 15

Years (CAC Nos. Mf6176 and MF6177)

4/29/2016

71003

Miscellaneous

CN-3402

Changes to Licensing Basis Documents and Amendments to

the Operating License to adopt TSTF-577

9/30/2025

71003

Miscellaneous

Generic Letter 89-

Erosion/Corrosion-Induced Pipe Wall Thinning

5/2/1989

71003

Miscellaneous

LRI.19A.1.23

Lubricating Oil Analysis Aging Management Program

71003

Miscellaneous

LRI.19A.1.30

CFR Part 50, Appendix J Aging Management Program

71003

Miscellaneous

LRI.19A.1.39

Protective Coating Monitoring and Maintenance Aging

Management Program

71003

Miscellaneous

LRI.19A.1.4

Boric Acid Corrosion Aging Management Program

71003

Miscellaneous

LRI.19A.1.5 &

LRI.19A.1.34

Nickel-Alloy Aging Management Program

71003

Miscellaneous

LRI.19A.1.6

Flow-Accelerated Corrosion Aging Management Program

71003

Miscellaneous

LRI.19A.1.8

Steam Generator Tubing Integrity Aging Management

Program

71003

Miscellaneous

LRI.19A.1.9

Open-Cycle Cooling Water System Aging Management

Program

71003

Miscellaneous

NEI 94-01

Industry Guideline for Implementing Performance-Based

2A

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Option of 10 CFR Part 50, Appendix J

71003

Miscellaneous

NOC-AE-

11002683

Response to Request for Additional Information

6/23/2011

71003

Miscellaneous

NOC-AE-

11002683

Response to Request for Additional Information for the South

Texas Project License Renewal Application (TAC Nos.

ME4936 and ME4937)

6/23/2011

71003

Miscellaneous

NOC-AE-

11002737

Supplement to the South Texas Project License Renewal

Application (TAC NOS. ME4936 and ME4937)

10/18/2011

71003

Miscellaneous

NOC-AE-

13003041

2013 Annual Update to the South Texas Project License

Renewal Application (TAG NOS. ME4936 and ME4937)

10/28/2013

71003

Miscellaneous

NOC-AE-

14003135

Response to Requests for Additional Information for the

Review of the South Texas Project, Units 1 and 2,

License Renewal Application - Set 26 (TAC Nos. ME4936

and ME4937)

7/31/2014

71003

Miscellaneous

NOC-AE-

15003227

South Texas Project (STP), Units 1 and 2 License

Amendment Request for Extending the 10 year ILRT to 15

years

4/29/2015

71003

Miscellaneous

NOC-AE-

24004031

Unit 2 Relief Request for RVH Penetration 75

4/6/2024

71003

Miscellaneous

NOC-AE-

25004119

Nickel Alloy Inspection Plan for License Renewal

71003

Miscellaneous

WCAP-15988-NP

Generic Guidance for an Effective Boric Acid Inspection

Program for Pressurized Water Reactors

71003

NDE Reports

VE-2024-002

Reactor Vessel Closure Head Visual Penetration Nozzles,

misc nozzles and general head area

4/2/2024

71003

NDE Reports

VE-2024-003

Reactor Vessel Closure Head Penetration Nozzles visual

examination of previously inaccessible areas

4/2/2024

71003

NDE Reports

VE-2024-004

Reactor Vessel Closure Head Visual Penetration #75

4/1/2024

71003

NDE Reports

VE-2024-005

Reactor Vessel Closure Head Visual Penetration #75 as left

4/5/2024

71003

NDE Reports

VT-1-3-2019-093

Remote VT-1 of Flange Bushing Stud Insert #30

10/21/2019

71003

Procedures

0PEP06-ZG-0013

Infrared Thermography Data Collection

71003

Procedures

0PGP03-ZA-0506

Tests or Evolutions Requiring Additional Controls

71003

Procedures

0PGP03-ZE-0080

Essential Cooling Water System Reliability Program

71003

Procedures

0PGP03-ZE-0083

License Renewal Implementation & Operating Experience

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Review

71003

Procedures

0PGP03-ZE-0133

Boric Acid Corrosion Control Program

71003

Procedures

0PGP03-ZM-

0004

Lubrication Program

71003

Procedures

0PGP03-ZO-0044

Steam Generator Management Program

71003

Procedures

0PGP03-ZO-0049

Conduct of Tests or Evolutions Requiring Additional Controls

71003

Procedures

0PGP04-ZA-0012

Flow Accelerated Corrosion Program

71003

Procedures

0PGP04-ZA-0013

Reactor Coolant System Materials Management Program

71003

Procedures

0PGP04-ZA-0608

Erosion Program

71003

Procedures

0PGP04-ZE-0006

Alloy 600 Materials Management Program

71003

Procedures

0PMP06-ZD-0001

Paints and Coatings

71003

Procedures

0PSP11-IL-0007

Reactor Containment Building Integrated Leakage Rate Test

71003

Procedures

0PSP11-IL-0009

Reactor Containment Building Visual Inspection

71003

Procedures

0PSP11-RC-0014

Steam Generator Inspection

71003

Procedures

0PSP11-ZA-0005

Local Leakage Rate Test Calculations, Guidelines, and

Program

71003

Work Orders

WAN

338416, 338417, 489939, 527995, 698490, 698491, 702413,

2461, 716903, 716904

71003

Work Orders

WO 497442, 497444, 497445, 535574