ML25324A307
| ML25324A307 | |
| Person / Time | |
|---|---|
| Site: | 05000614, 99902117 |
| Issue date: | 11/20/2025 |
| From: | O'Connor C Long Mott Energy |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| Shared Package | |
| ML25324A306 | List: |
| References | |
| 2025-PLM-NRC-013 | |
| Download: ML25324A307 (1) | |
Text
Long Mott Energy Long Mott Energy, LLC 221 H. H. Dow Way Midland, MI 48674 20 November 2025 2025-PLM-NRC-013 Docket No. 50-614 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Subject:
Supplement #2 to the Preliminary Safety Analysis Report for the Long Mott Generating Station Construction Permit Application
References:
1)
Long Mott Energy, LLC, 2025, Long Mott Generating Station Construction Permit Application, 2025-PLM-NRC-003, March 31, 2025 (ML25090A057) 2)
U.S. Nuclear Regulatory Commission, 2025, Acceptance for Docketing of the Long Mott Generating Station Construction Permit Application, May 12, 2025 (ML25115A247)
Long Mott Energy, LLC (LME), hereby submits the enclosed Supplement #2 to the Preliminary Safety Analysis Report (PSAR) for the Long Mott Generating Station (LMGS) Construction Permit Application. As described in Attachment 4,Planned Submittals of Supporting Site-Information for LMGS Preliminary Safety Analysis Report Chapter 2, of the cover letter to Reference 1, LME Ž plans to submit additional site-the Nuclear Regulatory Commission (NRC) to support the descriptions of LMGS hydrological characteristics and associated data collection, testing, analysis, and modeling that are contained in Section 2.4 of the LMGS PSAR. The NRC, as described in Reference 2, noted that LME expected this additional site-to.
Accordingly, this Supplement #2 includes redlined markups of certain Subsections to PSAR Chapter 2.4,Hydrology, based on additional site-and analyses, as presented in Enclosures 1 thru 5. Additional details for each Enclosure are described below:
x : Provides a redlined markup of Subsection 2.4.2 Floods. Subsection 2.4.2.2 Flood Design Considerations, describes additional site-associated information that includes the postulated coincidental wind setup and wave run-up combined with the Probable Maximum Flood (PMF) results, the dam failure results, and the storm surge results. Editorial markups are shown in the remainder of Subsection 2.4.2.
x : Provides a redlined markup of Subsection 2.4.3, Probable Maximum Flood on Streams and Rivers,and describes additional site-information that includes the postulated coincidental wind setup and wave run-up.
Editorial markups are also noted.
Long Mott Energy Long Mott Energy, LLC 221 H. H. Dow Way Midland, MI 48674 x : Provides a redlined markup of Subsection 2.4.4, Potential Dam Failures, and describes additional site-V["-ISG-2013-01. Editorial markups are also noted.
x : Provides a redlined markup of Subsection 2.4.5, Probable Maximum Surge and Seiche Flooding. Revisions to Subsection 2.4.5.2.2, Storm Surge Analysis, Subsection 2.4.5.4, Wave Action,and Subsection 2.4.5.5, Wave Runup, describe additional site-o include the ement of the modeling assessment, wave height and period of wave action, and wave run-up on LMGS structures. Editorial markups are also noted.
x : Provides a revised Subsection 2.4.10, Flood Protection Requirements, which takes into account the additional site-analyses and associated information described in Enclosures 1 through 4. Editorial markups are also noted.
site-s information are expected to be included in a future revision of the entire Reference 1.
This letter contains no commitments. Should you have any questions or require additional Va-energy.com.
Sincerely, Charles R. OConnor
"(
Long Mott Energy, LLC
Enclosures:
- 1. PSAR Subsection 2.4.2,Floods
- 2. PSAR Subsection 2.4.3, Probable Maximum Flood on Streams and Rivers
- 3. PSAR Subsection 2.4.4, Potential Dam Failures
- 4. PSAR Subsection 2.4.5, Probable Maximum Surge and Seiche Flooding
- 5. PSAR Subsection 2.4.10, Flood Protection Requirements
Long Mott Energy Long Mott Energy, LLC 221 H. H. Dow Way Midland, MI 48674 cc:
Long Mott Energy, LLC:
Kreshka Young Charles OConnor Mark Feltner Wayne Blaylock Edward Stones Evan Blankenau U.S. Department of Energy:
Tim Beville David Yarwood X Energy, LLC:
David Bannister Dragan Popovic Steve Miller David Royer Rob Taylor Steve Vaughn Va U.S. Nuclear Regulatory Commission:
Alissa Neuhausen Adrian Muniz Ondra Dukes Denise McGovern Richard Rivera Vab I<<