ML24234A014
| ML24234A014 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 08/20/2024 |
| From: | Michael Mahoney NRC/NRR/DORL/LPL2-2 |
| To: | Mack J Florida Power & Light Co |
| References | |
| L-2032-LLA-0142 | |
| Download: ML24234A014 (4) | |
Text
From:
Michael Mahoney Sent:
Tuesday, August 20, 2024 7:09 PM To:
Mack, Jarrett
Subject:
Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - SFP LAR (L-2023-LLA-0142)
Attachments:
RAIs - Turkey Point SFP LAR - Public Version_Redacted.pdf Hi Jarrett, By letter L-2023-077, dated October 11, 2023 (Agencywide Documents Access and Management System (ADAMS) Accession Package No. ML23285A035), Florida Power and Light Company (FPL) submitted a license amendment request (LAR) to revise the Turkey Point Nuclear Generating Unit Nos. 3 and 4 (Turkey Point) Technical Specifications (TS). Specifically, the proposed amendments revise the Turkey Point TSs by incorporating changes to TS 3.7.13, "Fuel Storage Pool Boron Concentration," TS 3.7.14, "Spent Fuel Storage," and TS 4.3, "Fuel Storage" to allow for an updated spent fuel pool criticality safety analysis which accounts for the impact on the spent fuel from a proposed transition to 24-month fuel cycles.
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. The attached version of the request for additional information (RAI) is a redacted non-proprietary public version. The proprietary non-public version has been sent to you via BOX.
As discussed, response to the attached RAIs is requested no later than 30 business days from todays date.
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 contact me.
Once this email is added to ADAMS, I will provide the accession number.
Thanks Mike Mahoney Project Manager, LPL2-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Desk: (301)-415-3867 Mobile: (301)-250-0450 Email: Michael.Mahoney@nrc.gov
Hearing Identifier:
NRR_DRMA Email Number:
2585 Mail Envelope Properties (SA1PR09MB94865592215C66C0DF6F1168E58D2)
Subject:
Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - SFP LAR (L-2023-LLA-0142)
Sent Date:
8/20/2024 7:08:37 PM Received Date:
8/20/2024 7:08:42 PM From:
Michael Mahoney Created By:
Michael.Mahoney@nrc.gov Recipients:
"Mack, Jarrett" <Jarrett.Mack@fpl.com>
Tracking Status: None Post Office:
SA1PR09MB9486.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 1786 8/20/2024 7:08:42 PM RAIs - Turkey Point SFP LAR - Public Version_Redacted.pdf 539486 Options Priority:
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REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION REGARDING LICENSE AMENDMENT REQUEST TO UPDATED SPENT FUEL POOL CRITICALITY ANALYSIS TO SUPPORT 24-MONTH FUEL CYCLES FLORIDA POWER AND LIGHT COMPANY TURKEY POINT NUCLEAR GENERATING STATION, UNITS 3 AND 4 FLORIDA POWER AND LIGHT COMPANY DOCKET NOS. 50-250 AND 50-251 EPID NO. L-2023-LLA-0142
Background
By letter L-2023-077, dated October 11, 2023 (Agencywide Documents Access and Management System (ADAMS) Accession Package No. ML23285A035), Florida Power and Light Company (FPL, the licensee) submitted a license amendment request (LAR) to revise the Turkey Point Nuclear Generating Unit Nos. 3 and 4 (Turkey Point) Technical Specifications (TS). Specifically, the proposed amendments revise the Turkey Point TSs by incorporating changes to TS 3.7.13, "Fuel Storage Pool Boron Concentration," TS 3.7.14, "Spent Fuel Storage," and TS 4.3, "Fuel Storage" to allow for an updated spent fuel pool criticality safety analysis which accounts for the impact on the spent fuel from a proposed transition to 24-month fuel cycles.
Note that proprietary information is marked as inside bold double brackets (( )).
NRC Staff Requests for Additional Information (RAIs)
- 1. Section 4.1.2.2.6 of WCAP-18830-P for the Turkey Point Nuclear Generating Units 3 and 4 fuel storage criticality analysis for 24 months discusses burnable absorber usage and its consideration in the criticality analysis. With regard to wet annular burnable absorber (WABA) considerations, Section 4.1.2.2.6 states WABA was used in Pre-EPU operation, which is covered by Criticality Fuel Designs 1 and 2, and it is assumed that all conservative Post-EPU (e.g., 148 integral fuel burnable absorber (IFBA) at 1.25X) input is bounding of Pre-EPU operation with WABA. However, no justification is provided to support this assumption.
The NRC staff understands that no Post-EPU operation fuel contains WABA and future fuel will be Criticality Fuel Design 3, but until such time as Pre-EPU operation fuel containing WABA is removed from the spent fuel pool (SFP) for long term storage, a combination of Pre-EPU WABA and Post-EPU fuels will exist in the SFP. 10 CFR 50.68(b)(4) requires licensees demonstrate, when taking credit for soluble boron, the