Document: NUREG-0800
Document ID: c0d3006a-c4ee-4659-b650-837c0c94b143
Document Type: srp
Title: STABILITY OF SUBSURFACE MATERIALS AND FOUNDATIONS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340604.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.4
CFR Part: 
CFR Title: 

Content:
for developing site-specific investigation programs as well as specific guidance for conducting subsurface investigations, the spacing and depth of borings and sampling. (Ref. 10) 4. Regulatory Guide 1.138, "Laboratory Investigations of Soils for Engineering Analysis and Design of Nuclear Power Plants." This guide describes labora- tory investigations and testing practices acceptable for determining soil and rock properties and characteristics needed for engineering analysis and design for foundations and earthwork for nuclear power plants in complying with 10 CFR Part 100 and 10 CFR Part 100, Appendix A. (Ref. 11) A thorough evaluation of the geotechnical engineering aspects of the nuclear plant site as described in the following subsections must be presented along with the basic data supporting all conclusions. Sufficient information must be provided to allow the staff and its advisors to conduct independent analyses. The site investigations must be adequate in scope and in technique to provide the necessary data. Specific criteria necessary to meet the relevant requirements of the Commission regulations identified above are as follows: Subsection 2.5.4.1. In meeting the requirements of References 1, 6, and 7 and the regulatory positions of References 10 and 11, 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 informa- tion must be presented in this subsection or cross-referenced to the appropriate subsection in Section 2.5.1 of the SAR. Subsection 2.5.4.2. In meeting the requirements of References 1, 2, 3, 6, and 7 and the regulatory positions of References 10 and 11, the description of . properties of underlying materials is considered acceptable if state-of-the-art methods are used to