Document: NUREG-0800
Document ID: cbcf5b42-aac8-43cf-a267-4f72f2392f37
Document Type: srp
Title: HYDROLOGIC DESCRIPTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0701/ML070100646.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.1
CFR Part: 
CFR Title: 

Content:
tions at the site should be provided. These descriptions may be obtained from reports of the USGS, United States Bureau of Reclamation (USBR), USACE, and others. Generally, reservoir descriptions of a quality similar to those contained in pertinent data sheets of a standard USACE Hydrology Design Memorandum are adequate. 2.4.1-5 Revision 3 - March 2007 2. Hydrological Causal Mechanisms: The application should provide a description of hydrological causal mechanisms that affect the safety of the plant. Mechanisms that can result in flooding at or in the vicinity of the site should be described. Mechanisms and climate in the vicinity of the site that affect low-water or drought conditions should be described. 3. Surface and Ground Water Uses: The application should provide a description of surface and ground water uses in the vicinity of the site that affect the safety-related water supply to the plant. The description should include all current and future known and likely surface and ground water use that may affect safety-related water supply to the plant. This description should include both upstream and downstream uses of water in the vicinity of the site. 4. Data: The application should provide a complete description of all spatial and temporal datasets used by the applicant in support of its conclusions regarding safety of the plant. Data and descriptions should be sufficiently detailed to allow the staff to review the applicant’s conclusions regarding the safety of the plant and to determine of the design bases of safety-related SSC. Data collected, maintained, and distributed by Federal and State agencies, such as USGS, NOAA, NRCS, USACE, and various State water resources departments, are adequate for safety evaluation of the plant. 5. Alternate Conceptual Models: The application should provide a description of alternate conceptual models of site hydrology. These alternate conceptual models should be sufficiently detailed to reasonably bound hydrological