Document: NUREG-0800
Document ID: 50b6e884-0fcb-4a85-b562-0117856f1c79
Document Type: srp
Title: Geologic Features.  In meeting the requirements of 10 CFR Parts 50 and 100,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730598.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.4.1
CFR Part: 
CFR Title: 

Content:
the section defining geologic features is acceptable if the discussions, maps, and profiles of the site stratigraphy, lithology, structural geology, geologic history, and engineering geology are complete and are supported by site investigations sufficiently detailed to obtain an unambiguous representation of the geology. The information must be presented in this subsection or cross-referenced to the appropriate subsection in Section 2.5.1 of the SAR. Geologic features are evaluated by conducting an independent literature search and comparing these results with the information included in the applicant's SAR. References used in reviewing this subsection include published or unpublished reports, maps, geophysical data, construction records, etc., by the USGS, other Federal agencies, State agencies, and private companies. In conjunction with the literature search, the staff and its advisors review the geological investigations conducted by the applicant. Using the references listed at the end of this section and other sources, the following questions are considered in detail: 1. Are the exploratory techniques used by the site investigator representative of the present state-of-the-art? Do the samples represent the in situ soil conditions? 2. Do the applicant's investigations provide adequate coverage of the site area and in sufficient detail to define the specific subsurface conditions with a high degree of confidence? 3. Have all areas or zones of actual or potential surface or subsurface subsidence, uplift or collapse, deformation, alternation, solution cavities or structural 2.5.4-7 Revision 3 - March 2007 weakness, unrelieved stresses in bedrock, or rocks or soils that might be unstable because of their physical or chemical properties been identified and adequately evaluated? 2.