ML26033A256
| ML26033A256 | |
| Person / Time | |
|---|---|
| Site: | 05000614, 99902117 |
| Issue date: | 02/02/2026 |
| From: | Long Mott Energy |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML26033A250 | List: |
| References | |
| 2026-PLM-NRC-003 | |
| Download: ML26033A256 (0) | |
Text
2.0-2 SUBJECT TO DOE COOPERATIVE AGREEMENT NO. DE-NE0009040 Copyright © 2025 Long Mott Energy, LLC All Rights Reserved Revision 0ABC Table 2.0-1: Long Mott Generation Station (LMGS) Site Characteristics (Sheet 1 of 3)
Site Characteristic LMGS Site Value PSAR Section Geography and Demography Exclusion Area Boundary (EAB) 400 m Section 2.1.2 Low Population Zone (LPZ) 400 m Section 2.1.2 Population Center Distance 22 mi (Victoria, TX)
Section 2.1.1.1 Nearby Industrial, Transportation, and Military Facilities Explosion Hazards Probability of occurrences is less than 1.0E-6 per year Section 2.2.3.3.7 Aircraft Hazards Annual aircraft crash probability is less than 1.0E-7 Section 2.2.2.7.1 Meteorology Air Temperature and Humidity Maximum Dry-Bulb Temperature 2% Annual Exceedance 94.1 °F (DBT) 76.6 °F (MCWB)
Section 2.3.1.2.6.2 1% Annual Exceedance 95.9 °F (DBT) 76.6 °F (MCWB)
Section 2.3.1.2.6.2 0.4% Annual Exceedance 97.9 °F (DBT) 76.5 °F (MCWB)
Section 2.3.1.2.6.2 100-Year Return Period 84.7 °F (DBT) 75.2 °F (MCWB)
Section 2.3.1.2.6.2 Minimum Dry-Bulb Temperature 99% Annual Exceedance 34.5 °F ASHRAE 2017 Fundamentals Victoria, TX 99.6% Annual Exceedance 31.4 °F ASHRAE 2017 Fundamentals Victoria, TX 100-Year Return Period 54 °F Section 2.3.1.2.6.2 Maximum Wet-Bulb Temperature 1% Annual Exceedance 79.8 °F Section 2.3.1.2.6.2 0.4% Annual Exceedance 80.3 °F Section 2.3.1.2.6.2 100-Year Return Period 84.3 °F ASHRAE 2017 Fundamentals Victoria, TX Basic Wind Speeds 3-Second Gust 122 mph Section 2.3.1.2.4 Hurricane Maximum Wind Speed 210 mph RG 1.221, Figure 1 NUREG/CR-7005, App. B Tornado Maximum Wind Speed 200 mph Section 2.3.1.2.2 1 Additional site-specific data will be provided by the end of second quarter 2026 to update and recalibrate the groundwater model.
2 Additional site-specific analyses will be provided by the end of 2025.
32 Additional site-specific analyses and associated evaluations for these items will be provided by the end of 2025.
Long Mott Generating Station Preliminary Safety Analysis Report Tables
2.0-3 SUBJECT TO DOE COOPERATIVE AGREEMENT NO. DE-NE0009040 Copyright © 2025 Long Mott Energy, LLC All Rights Reserved Revision 0ABC Long Mott Generating Station Preliminary Safety Analysis Report Table 2.0-1: Long Mott Generation Station (LMGS) Site Characteristics (Continued)
(Sheet 2 of 3)
Site Characteristic LMGS Site Value PSAR Section Maximum Translational Speed 40 mph Section 2.3.1.2.2 Maximum Rotational Speed 160 mph Section 2.3.1.2.2 Radius of Maximum Rotational Speed 150 ft RG 1.76, Table 1 Region II Maximum Pressure Drop 0.9 psi RG 1.76, Table 1 Region II Rate of Pressure Drop 0.4 psi/s RG 1.76, Table 1 Region II Winter Precipitation Normal Annual Snowfall 0.1 in Section 2.3.1.2.5 Maximum Monthly Snowfall 2.1 in Section 2.3.1.2.5 Short-Term (Accident Release) Atmospheric Dispersion Control Room /Q 2.97E-03 s/m3 Section 2.3.4.2 DBAs (EAB/LPZ) 3.57E-04 s/m3 Section 2.3.4.3 Non-DBEs (EAB/LPZ) 1.89E-04 s/m3 Section 2.3.4.3 Long-Term (Normal Release) Atmospheric Dispersion Site Boundary 0.25 mi Undepleted No Decay
/Q Value 1.00E-04 s/m3 Section 2.3.5 Table 2.3.5-2 Undepleted 2.26-Day Decay
/Q Value 1.00E-04 s/m3 Section 2.3.5 Table 2.3.5-2 Depleted 8-Day Decay
/Q Value 9.70E-05 s/m3 Section 2.3.5 Table 2.3.5-2 D/Q Value 3.50E-07 1/m2 Section 2.3.5 Table 2.3.5-2 Location of Interest Receptor 1 0.87 mi NNW Undepleted No Decay
/Q Value 6.40E-06 s/m3 Section 2.3.5 Table 2.3.5-3 Undepleted 2.26-Day Decay
/Q Value 6.20E-06 s/m3 Section 2.3.5 Table 2.3.5-3 Depleted 8-Day Decay
/Q Value 5.60E-06 s/m3 Section 2.3.5 Table 2.3.5-3 D/Q Value 3.90E-08 1/m2 Section 2.3.5 Table 2.3.5-3 Hydrology Maximum Ground Water Elevation1 Water level varies by geologic strata and seasonal variation Section 2.4.12 Table 2.4.12-6 1 Additional site-specific data will be provided by the end of second quarter 2026 to update and recalibrate the groundwater model.
2 Additional site-specific analyses will be provided by the end of 2025.
32 Additional site-specific analyses and associated evaluations for these items will be provided by the end of 2025.
2.0-4 SUBJECT TO DOE COOPERATIVE AGREEMENT NO. DE-NE0009040 Copyright © 2025 Long Mott Energy, LLC All Rights Reserved Revision 0ABC Long Mott Generating Station Preliminary Safety Analysis Report Table 2.0-1: Long Mott Generation Station (LMGS) Site Characteristics (Continued)
(Sheet 3 of 3)
Site Characteristic LMGS Site Value PSAR Section Maximum Still Water Flood Elevation2 CWest Coloma Creek 32 ft Section 2.4.2.2 Wave Runup2 (West Coloma Creek) 1 ft Section 2.4.2.2 Combined Effects Maximum Flood Elevation2 (West Coloma Creek) 33 ft Section 2.4.2.2 Maximum Still Water Flood Elevation On-Site Pond Failure (wave runup not applicable to this flooding mechanism) 32.5 ft Section 2.4.4.3 Local Intense Precipitation 19.4 in/hr Section 2.4.2.3.1 Table 2.4.2-5 Probable Maximum Storm Surge 36.3841.47 ft (still water) 46.49 ft (with wave runup)
Section 2.4.5.62.2.5 Site Grade 31 ft Section 2.4.10 Hydraulic Conductivity Table 2.4.12-12 Section 2.4.12.2.2 Hydraulic Gradient Table 2.4.12-12 Section 2.4.12.2.2 Geology, Seismology, and Geotechnical Engineering Basic Geological and Seismic Information Capable Tectonic Structures No capable tectonic structures identified within the site regionvicinity.
Section 2.5.3.6 Foundation Type Drilled Piers Section 2.5.4.103 Lateral Soil Variability Minor due to depositional environment Section 2.5.4.2.1 Vibratory Ground Motion Ground Motion Response Spectra Figure 2.5.2-5648 Section 2.5.2 Peak Ground Acceleration 0.1853 g (horizontal) 0.1160 g (vertical)
Section 2.5.2, Table 2.5.2-221 Stability of Subsurface Materials and Foundations Liquefaction Potential32 Site data from predominate cohesive site is being analyzed.None Section 2.5.4.86 Maximum Settlement32 3.8 in.
Section 2.5.4.10.2 Minimum Shear Wave Velocity32 Site data is being analyzed.
Vs30 > 789 ft/sec from STP used.
1144 ft/s below the tip of the deep foundation system Table 2.5.2-5 Fault Displacement Surface Deformation Potential No source of surface deformation identified Section 2.5.3.2.2.37 Slope Failure Potential NoNone Section 2.5.5.2 1 Additional site-specific data will be provided by the end of second quarter 2026 to update and recalibrate the groundwater model.
2 Additional site-specific analyses will be provided by the end of 2025.
32 Additional site-specific analyses and associated evaluations for these items will be provided by the end of 2025.