Geological and seismological characteristics for applications before October 16, 2003 and applications for other than dry cask modes of storage.

CFR · 2024-01-01 · US · Title 10

(a)(1) East of the Rocky Mountain Front (east of approximately 104° west longitude), except in areas of known seismic activity including but not limited to the regions around New Madrid, MO, Charleston, SC, and Attica, NY, sites will be acceptable if the results from onsite foundation and geological investigation, literature review, and regional geological reconnaissance (2) For those sites that have been evaluated under paragraph (a)(1) of this section that are east of the Rocky Mountain Front, and that are not in areas of known seismic activity, a standardized design earthquake (DE) described by an appropriate response spectrum anchored at 0.25 g may be used. Alternatively, a site-specific DE may be determined by using the criteria and level of investigations required by appendix A of part 100 of this chapter. (b) West of the Rocky Mountain Front (west of approximately 104° west longitude), and in other areas of known potential seismic activity, seismicity will be evaluated by the techniques of appendix A of part 100 of this chapter. Sites that lie within the range of strong near-field ground motion from historical earthquakes on large capable faults should be avoided. (c) Sites other than bedrock sites must be evaluated for their liquefaction potential or other soil instability due to vibratory ground motion. (d) Site-specific investigations and laboratory analyses must show that soil conditions are adequate for the proposed foundation loading. (e) In an evaluation of alte

official document · source cfr-2024 · id 10:§ 72.102