Document: NUREG-0800
Document ID: dfd1fbdb-0dd1-46f4-8489-99de53d66afc
Document Type: srp
Title: OTHER SEISMIC CATEGORY I STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550054.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.4
CFR Part: 
CFR Title: 

Content:
ason, for signs of degradation; and (2) conduct periodic site monitoring of ground water chemistry, to confirm that the ground water remains nonaggressive. For plants with aggressive ground water/soil (i.e., it exceeds any of the limits noted above), an acceptable approach is to implement a periodic surveillance program to monitor the condition of normally inaccessible, below-grade concrete for signs of degradation. 8. Masonry Walls. Appendix A to this SRP section contains the acceptance criteria for masonry walls. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Compliance with 10 CFR 50.55a requires that SSCs be designed, fabricated, erected, constructed, tested, and inspected to quality standards commensurate with the importance of the safety function to be performed. This section of the SRP cites RGs 1.69, 1.91, 1.115, 1.142, 1.143, 1.160, and 1.199 to provide guidance regarding construction, quality control, tests, and inspections that are acceptable to the staff. ACI 349, as supplemented by RG 1.142, and ANSI/AISC N690-1994, including Supplement 2 (2004), contain basic specifications for concrete and steel structures, respectively. These guides and specifications impose specific restrictions to ensure that SSCs will perform their intended safety function. Meeting these requirements provides added assurance that the SSCs described here will perform their safety function and limit the release of radioactive materials. 3.8.4-13 Revision 2 - March 2007 2. Compliance with GDC 1 requires that SSCs important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of their safety function, that a quality assurance program be established and implemented, and that sufficient and appropriate records be maintained. Where generally recognized codes and standards are used, they shall be