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NRC Updates Guidance on Lab Analyses of Soils and Rocks

The NRC has issued Revision 3 of Regulatory Guide (RG) 1.138, Laboratory Investigations of Soils and Rocks for Engineering Analysis and Design of Nuclear Power Plants. The updated Reg. Guide describes the acceptable lab testing practices used to determine soil and rock properties as part of the engineering and design of foundations and earthworks for new nuclear plants. The NRC did not receive any public comments on the proposed revisions, which were published as draft regulatory guide DG-1256.

To view the Federal Register entry, click here.

To view Reg. Guide 1.138, Rev. 3, click here.