Document: NUREG-0800
Document ID: 82135622-54bf-484d-bd7e-b749039d8ad5
Document Type: srp
Title: -17
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1506/ML15061A471.pdf
Revision Date: 2023-06
Chapter: 13
Section ID: 13.6.3
CFR Part: 
CFR Title: 

Content:
Revision 2 – October 2016 consensus industry standards, and independent laboratories certifications, which prescribe designs and specifications for SSCs to withstand and operate in, and protect against, anticipated severe weather and environmental conditions. Where environmental conditions are extreme and/or not readily addressed in available industry standards, codes, or certifications, information should demonstrate that adequate security plans and measures can be developed given the site characteristics and design parameters. 4. Floods and Low Water Conditions The probable maximum flood conditions (e.g., streams and rivers, hurricane costal surges, wind-induced, seiches, tsunamis, seismically induced dam failures or breaches, landslides, stream blockage, ice accumulations) are considered in determining if such conditions present impediments to design of engineered and administrative controls for a physical protection system. (a) Identified probable maximum flood for individual types of flood-producing phenomena and combinations of flood-producing phenomena analyzed and established flood design bases for nuclear power reactor and operations on the proposed site are considered in determining challenges or impediments to engineered and administrative controls required for developing security plans and measures. (b) Information demonstrates that the designs, specifications, and configurations of physical security measures and plans for operational requirements can be developed. Security postures of 10 CFR Part 73 also can be maintained to perform their intended security functions in the event of flood. Examples: (1) central and secondary alarm stations, as well as security posts or fighting positions can be configured to address anticipated flooding, (2) engineered physical security systems and structures relied on for security can be designed to provide continued security functions by selections of technologies, designs, and configurations to protect against flood