Document: NRC Regulatory Guide
Document ID: 8b2255d1-47a9-4dfe-ba41-568c561a89ee
Document Type: regulatory_guide
Title: Inspection of Water-Control Structures Associated with Nuclear Power Plants + HISTORY – HISTORY 01/2015 – DG-1245 , Proposed Revision 2 (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1325/ML13255A435.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.127
CFR Part: 
CFR Title: 

Content:
s or after the occurrence of unusual events such as earthquakes, hurricanes, tornadoes, intense local rainfalls, etc. Such inspections should be followed by an engineering evaluation of the structural stability of the structure using the appropriate (possibly degraded) material properties of the structure, the results of the evaluation should be communicated to the appropriate regulatory authorities. For water-control structures owned, operated or regulated by others, and relied upon or taken credit for by the licensee as part of the plant’s current licensing basis, the licensee or applicant should verify with the owner of such structures that the occurrence of such unusual events did not impact the structure’s ability to perform its intended safety function (as assumed in the design/licensing basis of the facility). 10. Inspection Report In addition to the information identified in Section C.4, “Engineering Data Compilation” of this RG, a technical report should be prepared containing the results of each general inspection. These documents should be kept at the project site for reference purposes; should be available for inspection by regulatory authorities; and should be retired only on termination of the project. Any abnormal hazardous conditions observed during the inspection should be reported to the NRC in accordance with the Commission’s regulations, and, as required by the plant technical specifications. The content of the reports is described below. a. Initial Report In addition to a general description of water-control structures, major elements of the report should include the following: (1) results of the visual inspection of each project feature, including photographs, where appropriate; (2) results of the instrumentation observations; (3) an evaluation of the operational adequacy of the reservoir regulation plan and the maintenance of the structure and operating facilities, including the warning system; Pre-Decisional DG-1245, Page 15 (4) a