Document: NRC Regulatory Guide
Document ID: a094549d-8685-4dad-b90f-c28c7d279a53
Document Type: regulatory_guide
Title: Geologic and Geotechnical Site Characterization Investigations for Nuclear Power Plants + HISTORY – HISTORY 08/2021 – DG-1392 , Proposed Revision 3 07/2014 – Periodic Review of Revision 2 – Reviewed with no issues identified 02/2001 – DG-1101 , Proposed Revision 2 (Rev. 3)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2119/ML21194A176.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.132
CFR Part: 
CFR Title: 

Content:
g project planning and design studies Reports on completed projects can be obtained by interlibrary loan or from USAEWES. DG-1392, Appendix B, Page B-4 APPENDIX B, Cont’d. AGENCY TYPE OF INFORMATION DESCRIPTION REMARKS Agricultural Stabilization and Conservation Services Aerial Photography Field Office (APFO) Aerial photographs The APFO offers aerial photographs across the United States, typically a series of photographs taken at different times, as available for a given site. Information is available at 801-975-3503. USGS Earth Resources Observation Systems (EROS) Center (EDC) Aerial photographic coverage The EDC houses the nation’s largest collection of space- and aircraft-acquired imagery. Information is available at 605-594-6151 or 1-800-USAMAPS. Satellite Pour l’Observation de la Terre (SPOT) Remote sensing imagery High-resolution multispectral imagery produced by France’s SPOT satellite imager is available for purchase. The contact number for SPOT images is 800-275-7768. Google Earth Combination of satellite imagery, aerial photography, and geographic information Maps the Earth by the superimposition of images obtained from satellite imagery, aerial photography, and geographic information system (GIS) onto a three- dimensional globe. Resolution varies from 15 meters to 15 centimeters. Available online. DG-1392, Appendix C, Page C-1 APPENDIX C METHODS OF SUBSURFACE EXPLORATION METHOD PROCEDURE APPLICABILITY LIMITATIONS 1. Methods of Access for Sampling, Test, or Observation Pits, trenches, shafts, tunnels Excavation is made by hand, large auger, or digging machinery. Visual observation, photography, disturbed and undisturbed sampling, in situ testing of soil and rock. Depth of unprotected excavations is limited by ground water or safety considerations. May need dewatering. Auger boring Boring is advanced by hand auger or power auger. Recovery of remolded samples and determining ground water levels. Access for undisturbed sampling of cohesive soils. Will