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:
ns of flooding, and if barriers or other means of physical separation are utilized between redundant safety-related trains. 6. Review plant structure design drawings to determine if any safety-related structures have been provided with a safety-related permanent dewatering system for control of ground water seepage. The dewatering system should be designed to safety grade requirements. In addition, see SRP Section 2.4.13. IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided and that his evaluation supports conclusions of the following type, to be included in the staff's safety evaluation report: 3.4.1-3 Rev. 2 - July 1981 The flood protection review included all systems and components whose failure could prevent safe shutdown of the plant and main- tenance thereof or result in significant uncontrolled release of radioactivity. Based on the review of the applicant's proposed design criteria, design bases, and safety classification for safety-related SSC necessary for a safe plant shutdown during and following the flood condition from either external or internal causes, the staff concludes that the design of the facility for flood protection conforms to the Commission's regulations as set forth in General Design Criterion 2 and 10 CFR Part 100 Appendix A. This conclusion is based on the applicant having met the require- ments of General Design Criterion 2 and Appendix A to 10 CFR Part 100 with respect to protection of SSC important to safety from the effects of floods, tsunamis, and seiches by: (a) Meeting Regulatory Guide 1.59 positions C.1 regarding the conditions utilized for design of SSC important to safety for the worst site-related flood probable at a nuclear power plant (e.g., PMF, seismically induced flood, hurricane, seiclie, surge, PMP) and C.2 regarding alternatives to hardened pro- tection of SSC important to safety. (b) Meeting Regulatory Guide 1.102 positions C.1 regarding the type of flood protection provided and