ML25010A075

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January 2 2025 Email from K. Green to S. Hughes, TVA, Re Extension of RAI Response Date for Main Control Room Chiller Extension of Completion Time
ML25010A075
Person / Time
Site: Browns Ferry, Watts Bar, Sequoyah  Tennessee Valley Authority icon.png
Issue date: 01/02/2025
From: Kimberly Green
Plant Licensing Branch II
To: Wells R
Tennessee Valley Authority
Green K
References
EPID L-2024-LLA-0041 TS 3.7.11
Download: ML25010A075 (1)


Text

From:

Kimberly Green To:

Wells, Russell Douglas Cc:

Hughes, Shawna; Aboulfaida, Amber Vendel; David Wrona

Subject:

RE: RE: Request for Additional Information -TVA LAR to Revise Watts Bar TS 3.7.11 for Main Control Room Chiller Extension of Completion Time (EPID L-2024-LLA-0041)

Date:

Thursday, January 2, 2025 3:07:00 PM Attachments:

image001.png

Russ,

TVAs request to extend the response date for the RAIs associated with the TVA LAR to Revise Watts Bar TS 3.7.11 until January 17, 2025, is granted. However, please note that previously requested 49-day response time and this extension will affect the NRC staffs ability to render a decision and issue amendments by the previously communicated date of February 7, 2025. A revised date for the proposed issuance of the amendments will be communicated to Shawna after the NRC receives the RAI responses and has an opportunity to review them.

Kim

From: Wells, Russell Douglas <rdwells0@tva.gov>

Sent: Thursday, January 2, 2025 1:09 PM To: Kimberly Green <Kimberly.Green@nrc.gov>

Cc: Hughes, Shawna <smhughes@tva.gov>; Aboulfaida, Amber Vendel <avaboulfaida@tva.gov>

Subject:

[External_Sender] RE: Request for Additional Information -TVA LAR to Revise Watts Bar TS 3.7.11 for Main Control Room Chiller Extension of Completion Time (EPID L-2024-LLA-0041)

Importance: High

Kim TVA would like to request an extension on the response to the subject NRC RAI from January 10, 2025, to January 17, 2025. Due to the holidays and personnel time off following the recent WBN refueling outage, TVA needs additional time for responding to the RAI. Please let me know if this extension request is acceptable to the NRC. Thanks

Russell D. Wells Senior Program Manager Nuclear Fleet Licensing W. 423-751-8130M. 434-221-9318E. rdwells0@tva.gov 1101 Market Street LP4A-C, Chattanooga, TN 37402-2801

From: Kimberly Green <Kimberly.Green@nrc.gov>

Sent: Friday, November 22, 2024 7:14 AM To: Hughes, Shawna <smhughes@tva.gov>

Cc: Wells, Russell Douglas <rdwells0@tva.gov>

Subject:

Request for Additional Information -TVA LAR to Revise Watts Bar TS 3.7.11 for Main Control Room Chiller Extension of Completion Time (EPID L-2024-LLA-0041)

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Dear Shawna Hughes:

By letter dated April 4, 2024 (Agencywide Documents Access and Management System Accession No. ML24059A159), Tennessee Valley Authority (TVA) submitted a license amendment request to the U.S. Nuclear Regulatory Commission (NRC) that requested changes to Watts Bar Nuclear Plant (Watts Bar), Units 1 and 2, Technical Specification (TS) 3.7.11, Control Room Emergency Air Temperature Control System (CREATCS).

Specifically, the proposed changes would modify the TS Required Actions for two inoperable CREATCS trains; add a new Condition that is applicable in Modes 5 and 6, or during movement of irradiated fuel assemblies; and delete the temporary footnote associated with Condition E.

The U.S. Nuclear Regulatory Commission (NRC) staff is reviewing your submittal and has identified areas where additional information is needed to complete its review. A draft request for additional information (RAI) was previously sent to you via email on October 29, 2024. At your request, a clarification call was held on November 6, to clarify the NRC staffs request (ML24318A860). As a result of the November 6, clarification call, the NRC revised all draft RAIs except RAI IOLB-1, added additional information to the regulatory basis section to support the revisions, and added draft RAIs SCPB-2 and SCPB-3 to request information regarding the non-safety related chiller. The revised draft RAI was transmitted to you by email dated November 13, 2024 (ML24325A471). TVA requested a call to obtain clarification on draft RAI STSB-2 and draft RAI SCPB-3 (new). A clarification call was held on November 19, 2024. As a result of the clarification call, the NRC eliminated RAI SCPB-3 and added a reworded version as part b to RAI SCPB-2.

After the November 19, 2024, call, the NRC staff added part c to RAI SCPB-2. A draft of this new part was transmitted to you by email dated November 21, 2024. TVA did not request clarification regarding the new request.

A response to the attached RAI is due by January 10, 2025, the date requested by TVA.

The NRC staff considers that timely responses to RAIs help ensure sufficient time is available for staff review and contribute toward the NRCs goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please me at (301)415-1627 or via email atKimberly.Green@nrc.gov.

Sincerely, Kimberly J. Green, Senior Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation