Document: NRC Regulatory Guide
Document ID: 5810150e-ee20-4cd1-b72f-6e918a603f73
Document Type: regulatory_guide
Title: Applications for Nuclear Power Plants (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1523/ML15233A056.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.206
CFR Part: 
CFR Title: 

Content:
, all these excavation activities may be conducted without a COL, LWA, or ESP authorizing LWA activities. However, placing permanent, nonstructural dewatering materials, mud, or engineered backfill in advance of the placing the foundation and associated permanent retaining walls for SSCs within the scope of the definition of construction is not an excavation activity and is considered to fall within the scope of construction. Any person or entity that excavates should be aware that the NRC expects any subsequent application requesting construction authorization to accurately document and address the excavation process and the conditions exposed by excavation, to ensure that the NRC will have an adequate basis for evaluating the relevant portions of the application. The NRC staff may also discuss with applicants and prospective applicants the possibility of voluntarily allowing it access to the site during excavation activities to assist in its evaluation of the relevant portions of the application. Construction includes installation of the foundation, including soil compaction; the installation of permanent drainage systems and geofabric; the placement of backfill, concrete (e.g., mudmats), or other materials that will not be removed before placement of the foundation of a structure; the placement and compaction of a subbase; the installation of reinforcing bars to be incorporated into the foundation of the structure; the erection of concrete forms for the foundations that will remain in place permanently (even if nonstructural); and the placement of concrete or other material constituting the foundation of any SSC within the scope of the definition of construction. The term “permanent” in this context includes anything that will exist in its final, in-place plant location after fuel load. Construction also includes the “onsite, in-place” fabrication, erection, integration, or testing activities for any in-scope SSC. The terms “onsite, in place,