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| | number = ML15162A881 | | | number = ML15162A881 |
| | issue date = 06/11/2015 | | | issue date = 06/11/2015 |
| | title = Response to Request for Clarification - Seabrook ESEL Items for FLEX Strategy | | | title = NRR E-mail Capture - Response to Request for Clarification - Seabrook ESEL Items for FLEX Strategy |
| | author name = Willoughby P | | | author name = Willoughby P |
| | author affiliation = NextEra Energy Seabrook, LLC | | | author affiliation = NextEra Energy Seabrook, LLC |
Latest revision as of 23:03, 4 December 2019
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Category:E-Mail
MONTHYEARML24320A0892024-11-14014 November 2024 EN 57424 Seabrook - Active Link Removed - Part 21 Report ML24285A1682024-10-11011 October 2024 Email Response: LTR-24-0212 David Lochbaum Letter - Public Access to Advisory Committee on Reactor Safeguards Materials - Seabrook ASR ML24149A3532024-05-24024 May 2024 Change in Estimated Review Schedule for Nextera Common Emergency Plan Amendment ML24122C6922024-05-0101 May 2024 NextEra Fleet EP Amendment - Demonstration Drill ML24115A2362024-03-28028 March 2024 Acceptance Review: Alternative to the Requirements of the ASME Code for Examination of Control Rod Drive Mechanism (Rod) Housing H-4 Canopy Seal Weld ML23173A1522023-06-22022 June 2023 Request for Additional Information NextEra Fleet Emergency Plan Amendment Request ML23156A3042023-05-31031 May 2023 Acceptance of Requested Licensing Action Amendment Request to Remove Period of Applicability from Pressure Temperature Limits and Low Temperature Over Pressure Protection Curves ML23109A1862023-04-19019 April 2023 And Turkey Point – Acceptance of Requested Licensing Action Proposed Alternative to Asme Section XI Authorizing Implementation of Asme Code Case N-752-1 ML23066A1892023-03-0303 March 2023 OEDO-22-00419: Email Dated 3-3-2023 to Petitioner on Seabrook ASR Petition ML23066A0892023-02-24024 February 2023 OEDO-22-00419 - Email Dated 02/24/2023 to Petitioner on Seabrook Unit 1 ASR Petition ML23020A9392023-01-19019 January 2023 Acceptance of Requested Licensing Action Amendment Request to Revise Cooling Tower Service Water Loop or Cell Requirements (EPID L-2022-LLA-0183) (Email) ML23011A3082023-01-11011 January 2023 Request for Additional Information Regarding Relief Request 4RA-22-001 (L-2022-LLR-0074) ML22341A0012022-12-0606 December 2022 Acceptance of Requested Licensing Action Relief Request 4RA-22-001, Proposed Alternative in Accordance with 10 CFR 50.55a(z)(2) ML22333A7452022-11-22022 November 2022 OEDO-22-00419 - Email: C-10 Response on PRB Initial Assessment - C-10 Petition on Seabrook ASR Concrete Degradation ML22287A1472022-10-13013 October 2022 2.026 Petition Screen-in Email ML22228A0552022-08-15015 August 2022 Request for Additional Information Steam Generator Tube Inspection Report Review ML22200A1082022-07-19019 July 2022 Acceptance Review for TSTF-577 Amendment ML24285A2022022-07-0202 July 2022 Email Response - 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Comley Sr., We the People with Attachments ML19112A1782019-04-22022 April 2019 NRR E-mail Capture - Point Beach; Seabrook; Turkey Point - Acceptance of Requested Licensing Action Amendment Request to Revise Technical Specifications to Adopt TSTF-563 ML19101A4042019-04-11011 April 2019 NRR E-mail Capture - Point Beach; Seabrook; St. Lucie; Turkey Point - Acceptance of Licensing Action Relief Request to Use Encoded Phased Array Ultrasonic Examination Techniques for Ferritic and Austenitic Welds 2024-05-24
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Text
NRR-PMDAPEm Resource From: Willoughby, Paul [Paul.Willoughby@nexteraenergy.com]
Sent: Thursday, June 11, 2015 11:55 AM To: Wyman, Stephen
Subject:
Response to Request for Clarification - Seabrook ESEL Items for FLEX Strategy Attachments: Response to NRC ESEL Question 060415.docx Steve Please see the attached response to the NRC request for clarification regarding the Seabrook ESEL list.
Paul Paul Willoughby Principal Nuclear Engineer Licensing Department NextEra Energy Seabrook paul.willoughby@nexteraenergy.com (603) 773-7350 Office 1
Hearing Identifier: NRR_PMDA Email Number: 2149 Mail Envelope Properties (9A4041587BCEC446B92F0B48FE71D2CF4FCDE76E)
Subject:
Response to Request for Clarification - Seabrook ESEL Items for FLEX Strategy Sent Date: 6/11/2015 11:55:05 AM Received Date: 6/11/2015 11:55:08 AM From: Willoughby, Paul Created By: Paul.Willoughby@nexteraenergy.com Recipients:
"Wyman, Stephen" <Stephen.Wyman@nrc.gov>
Tracking Status: None Post Office: GOXSA1707.fplu.fpl.com Files Size Date & Time MESSAGE 314 6/11/2015 11:55:08 AM Response to NRC ESEL Question 060415.docx 15326 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
NRC Question The following clarification questions are raised in the context of the NRC evaluation of the ESEP submittals only and licensees responses will be reviewed by NRC staff only to the extent the use of this information affects the elements and outcomes of the ESEP evaluation. As many licensees have used information from their ongoing SPRA analyses, the current review will not evaluate methods or results as they pertain to the SPRA. They will be reviewed later at the time of SPRA review.
- 1. It appears that ESEL items for RCS inventory control/long-term sub-criticality were selected based on the alternate strategy (RWST). Provide clarification for using the alternate strategy, or confirm that all primary strategy SSCs are included in the ESEL (e.g., Boric Acid Tank, Rapid boration valve CS-V426). If SSCs are added to the ESEL, please provide results per ESEP guidance (e.g., HCLPF analysis results).
Response
The primary strategy for inventory control with SEPS available is to use the Charging system aligned to the Refueling Water Storage Tank (RWST). The primary boration strategy with SEPS available in to use the Boric Acid Storage tanks (BATs), transfer pump, rapid boration valve (CS-V-426), into the suction of a Charging pump. The primary strategy for inventory control and boration with SEPS not available is to use the portable FLEX high pressure pump aligned to the BATs for discharge into the RCS.
The alternate strategy with SEPS not available would use the RWST as the suction source. The alternate RWST strategy components were included in the ESEL due to the fact that the RWST flowpath and components were already required to be included as support systems for the SEPS available strategy. In that scenario, the Charging pump, flowpath, and components are listed in the ESEL for inventory control.