ML23095A189

NRR E-mail Capture - LaSalle County Station, Units 1 and 2 - Audit Plan PTLR Amendment Request

ML23095A189
Person / Time
Site:	LaSalle
Issue date:	04/05/2023
From:	Robert Kuntz NRC/NRR/DORL/LPL3
To:	Taken J Exelon Generation Co
References
L-2023-LLA-0184
Download: ML23095A189 (4)

Text

From: Robert Kuntz Sent: Wednesday, April 5, 2023 11:32 AM To: Taken, Jason C.:(Exelon Nuclear)

Subject:

LaSalle County Station, Units 1 and 2 - Audit Plan RE: PTLR Amendment Request (EPID L-2023-LLA-0184)

Mr. Taken, The NRC staff has determined that an audit is necessary to support its review of the LaSalle County Station, Units 1 and 2, license amendment request to relocate the pressure and temperature limit curves to the pressure and temperature limits report (EPID L-2022-LLA-0184).

The following is the plan for the audit. If Contellation Energy Corporation has any questions or requires information contact me.

Robert Kuntz Senior Project Manager NRC/NRR/DORL/LPL3 REGULATORY AUDIT PLAN TO SUPPORT REVIEW OF THE LICENSE AMENDMENT REQUEST REGARDING THE PRESSURE TEMPERATURE LIMITS REPORT LASALLE COUNTY STATION, UNITS 1 AND 2 DOCKET NOS. 50-373 AND 50-373 EPID L-2022-LLA-0173

1.0 BACKGROUND

By application dated November 10, 2022 (Agencywide Document Access and Management System (ADAMS) Accession No. ML22332A448), as supplemented by letter dated January 12, 2023 (ML23010A227) Constellation Energy Generation, LLC (Constellation) submitted a license amendment request (LAR) for LaSalle County Station, Units 1 and 2. The proposed amendments would relocate the pressure and temperature limits curves to the pressure temperature limits report.

The NRC staff has determined that a regulatory audit of the background technical analysis for this LAR should be conducted in accordance with the Office of Nuclear Reactor Regulation (NRR) Office Instruction LIC-111, Regulatory Audits, for the NRC staff to gain a better understanding of the licensees calculations and other aspects of the LAR.

2.0 REGULATORY AUDIT BASIS A regulatory audit is a planned, license or regulation-related activity that includes the examination and evaluation of information that is not on the docket.

The staff has determined an audit will be the most efficient path to a timely resolution of issues associated with this LAR review. It is intended to avoid unnecessary burden on the licensee by preventing the generation of requests for additional information (RAIs) when that information is not needed to make a safety determination. Furthermore, interaction to clarify what information is needed should avoid RAI responses that do not fulfill the staffs needs. In this way, followup requests should be minimized.

3.0 REGULATORY AUDIT SCOPE The scope of the audit is the documentation and supporting analysis related to the LAR.

4.0 INFORMATION NEEDS Audit items are included in Appendix A to aid in discussion.

As necessary, the licensee should make available technical staff or contractors who are familiar with the information to assist the NRC staff during the audit.

Additional information needs identified during the audit will be communicated to the designated point of contact.

5.0 TEAM ASSIGNMENTS The NRC staff performing this audit will include, but may not be limited to, the following staff:

Audit Team

• Jame Meddoff, Technical Reviewer

• Cory Parker, Technical Reviewer

• Carolyn Fairbanks, Technical Reviewer

• Robert Kuntz, Project Manager 6.0 LOGISTICS The audit will be conducted from April 10, 2023 to May 5, 2023 through remote online access (electronic portal, ePortal, electronic reading room) established by Constellation. A session for presentations, review of audit questions, is planned for the week of April 17, 2023.

7.0 DELIVERABLES At the conclusion of the audit, the NRC staff will conduct an exit briefing and provide a summary of audit results. The NRC staff plans to prepare a regulatory audit summary within 90 days of the completion of the audit.

APPENDIX A: AUDIT ITEMS FOR REVIEW AND DISCUSSION 1.0 DOCUMENTS TO BE PLACED IN THE ONLINE PORTAL The following documents should be included in the online portal for the NRC staff to review:

1. SI Calculation No. 20001063.305, Revision 0, LaSalle Units 1 and 2 P-T Curve Calculation for 54 EFPY, October 20, 2022.

2. SI Calculation No. 2001063.301, Revision 0, Feedwater Nozzle Fracture Mechanics Evaluation for Pressure-Temperature Limit Curve Development, October 10, 2022.

3. SI Calculation No. 2001063.302, Revision 0, Low Pressure Coolant Injection Nozzle Fracture Mechanics Evaluation for Pressure-Temperature Limit Curve Development, October 10, 2022.

4. SI Calculation No. 2001063.304P, Revision 1, Evaluation of Adjusted Reference Temperatures and Reference Temperature Shifts, October 2022.

Hearing Identifier: NRR_DRMA Email Number: 2029 Mail Envelope Properties (SA9PR09MB46400CC52D90109E04ADA5B999909)

Subject:

LaSalle County Station, Units 1 and 2 - Audit Plan RE PTLR Amendment Request (EPID L-2023-LLA-0184)

Sent Date: 4/5/2023 11:32:03 AM Received Date: 4/5/2023 11:32:00 AM From: Robert Kuntz Created By: Robert.Kuntz@nrc.gov Recipients:

"Taken, Jason C.:(Exelon Nuclear)" <Jason.Taken@constellation.com>

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