Document: NUREG-0800
Document ID: 45edd5cb-5936-48de-9527-039982576fa8
Document Type: srp
Title: FLOOD PROTECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340628.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.4.1
CFR Part: 
CFR Title: 

Content:
ng SSC important to safety from the effects of floods, tsunamis and seiches. Acceptance is based on the design meeting the guide- lines of Regulatory Guide 1.59 with regard to the methods utilized for establishing the probable maximum flood (PMF), probable maximum precipitation (PMP), seiche and other pertinent hydrologic considerations; and the guide- lines of Regulatory Guide 1.102 regarding the means utilized for protection of SSC important to safety from the effects of the PMF and PMP. If safety-related structures are protected from below-grade groundwater seepage by means of a permanent dewatering system, then the system should be designed as a safety- related system and meet the single failure criterion requirements. III. REVIEW PROCEDURE The review procedures below are used during the construction permit (CP) review to determine that the design criteria and bases and the preliminary design as set forth in the preliminary safety analysis report (PSAR) meet the acceptance .criteria given in subsection II of this SRP section. For the review of operating license (OL) applications the procedures are utilized to verify that the initial design criteria and bases have been appropriately implemented in the final design 3.4.1-2 Rev. 2 - July 1981 as set forth in the final safety analysis report (FSAR). The reviewer will select and emphasize material from the paragraphs below as may be appropriate for a particular case. The reviews of flood elevations and other hydrologic considerations pertinent to protection of SSC important to safety, including the underground drainage system, are performed by HGEB as part of its primary responsibility for SRP Sections 2.4.1 through 2.4.14. Upon request from the primary reviewer, the coordinating review branches will provide input for the areas of review stated in subsection I of this SRP section.. The-primary reviewer obtains and uses such input as required to assure that this review procedure is complete. The review procedure