Document: NUREG-0800
Document ID: f5ba9b07-c36e-4c99-a4af-50271ed55f35
Document Type: srp
Title: SURFACE FAULTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340599.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.3
CFR Part: 
CFR Title: 

Content:
h pass-within 5 miles of the site and regional faults, the 'resolution of the investigative techniques should be given. Subsection 2.5.3.6 is evaluated to determine if a sufficiently detailed investi- gation has been made by the applicant to define the specific characteristics ' of all capable faults located within 5 miles of the site. The fault character- istics requiring definitions include: length, orientation, relationship of the fault to regional structures; the nature, amount, and geologic history of displacements along the fault; and the outer limits of the fault zone estab- lished by mapping fault traces 10 miles along trends in both directions from the point of nearest approach to the site (Ref. 3). The staff must be satisfied | that the investigation covers a large enough area in sufficient detail to demon- strate that there is little likelihood of near-surface displacement hazards associated with capable faults existing undetected near the site. 2.5.3-5 2Rev. 2 - July 1981 Subsection 2.5.3.7. Criteria for determining the zone requiring detailed fault- ing investigation are clearly outlined in Reference 3. The staff reviews the results of the applicant's faulting investigation together with the published literature. The investigative techniques employed by the applicant are evalu- ated to ascertain that they are consistent with the state of the art. As part of this phase, experts in specific disciplines are asked to review certain aspects of the investigative program. The results of the investigation are analyzed to determine whether the outer limits of the zone requiring faulting investigation are appropriately conservative. If there is insufficient data to substantiate the outer boundaries, more conservative assumptions are required. Subsection 2.5.3.8. If the detailed faulting investigations for the proposed commercial nuclear power plant reveal that there is a potential for surface displacement at the site, the staff recommends that an alternate