Document: NRC Regulatory Guide
Document ID: 22ccfd5e-c5d8-4615-a02c-32369aa9f533
Document Type: regulatory_guide
Title: Acceptability of Probabilistic Risk Assessment Results for Risk-Informed Activities (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1930/ML19308B636.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.200
CFR Part: 
CFR Title: 

Content:
rozen precipitation and other debris down a sloped surface resulting in dynamic loading of SSCs at or in the plant analyzed area causing functional failure, or adverse impact on natural water supplies used for heat rejection. Coastal Erosion Removal of material from a shoreline of a body of water (e.g., river, lake, ocean) due to surface processes (e.g., wave action, tidal currents, wave currents, drainage, or winds and including river bed scouring) that results in damage to foundation of SSCs at or in the plant analyzed area causing functional failure. Landslide Dynamic loading of SSCs or impacts on natural water supplies used for heat rejection due to movement of rock, soil, and mud down a sloped surface (i.e., does not include frozen precipitation). Soil Shrink-Swell Dynamic forces on structures’ foundations due to the expansion (swelling) and contraction (shrinking) of soil resulting from changes in the soil moisture content. DG-1362, Appendix D, Page D-5 Hazard Group/ Hazard Direct or Secondary Impact of Hazard Industrial Accidents Accidents occurring offsite at a facility, or human-caused accidents occurring onsite, causing functional failure of plant SSCs. Hazards that could potentially result in an industrial accident include: Industrial or military accident An accident at an offsite industrial or military facility that results in a release of toxic gases, a release of combustion products, a release of radioactivity, an explosion, or the generation of missiles. Onsite Hazardous Material Release (external) A release of hazardous material including, but not limited to toxic or asphyxiant gases, liquids, combustion products, or radioactivity. Such releases may be concurrent with or induce an explosion or the generation of missiles. In this context, an onsite release of radioactivity is assumed to be associated with low- level radioactive waste. Pipeline Accident A release of hazardous material, a release of combustion products, an explosion, or generation of