Document: NUREG-0800
Document ID: be033a97-be2a-4a23-91fe-52b123162b3b
Document Type: srp
Title: LOW WATER CONSIDERATIONS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730439.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.11
CFR Part: 
CFR Title: 

Content:
site is needed. A thorough listing of types of phenomena, locations and durations of these events, and descriptions of hydrometeorological and hydrogeological characteristics accompanying these events should be included. These listings and descriptions should be sufficient to establish the most severe low water event due to these phenomena reasonably possible in the vicinity of the site. These estimates of low water events caused by other phenomena should be consistent with the estimates in the respective SAR sections where review of these individual phenomena is carried out. In case of disagreement between the staff’s and the applicant’s conclusions, the applicant should fully document and justify its conclusions or accept the staff’s conclusions and redesign any SSC important to safety that may be affected by low water events. 3. Effect of Low Water on Safety-Related Water Supply: To meet the requirements of GDC 2, GDC 44, 10 CFR 52.17, and 10 CFR Part 100, a thorough description of all safety-related water supply requirements and the effects of the most severe low water event reasonably possible at or in the vicinity of the site is needed. The staff will review the proposed requirements of the plant with respect to the available water during the most severe low water event to assess the reliability of the proposed safety-related water supply. In case of disagreement between the staff’s and the applicant’s 2.4.11-5 Revision 3 - March 2007 conclusions, the applicant should fully document and justify its conclusions or accept the staff’s conclusions and redesign the safety-related water supply. 4. Water Use Limits: To meet the requirements of GDC 2, GDC 44, 10 CFR 52.17, and 10 CFR Part 100, a thorough description of water use and discharge limitations (both physical and legal), already in effect or under discussion by responsible Federal, regional, State, or local authorities, that may affect water supply at the plant that have been considered and are