ML18142C166
| ML18142C166 | |
| Person / Time | |
|---|---|
| Issue date: | 05/23/2018 |
| From: | Dogan Seber NRC/RES/DE/SGSEB |
| To: | Bernard Thomas NRC/RES/DE |
| O'Donnell E | |
| Shared Package | |
| ML18142C085 | List: |
| References | |
| RG-1.090 | |
| Download: ML18142C166 (2) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 23, 2018 MEMORANDUM TO: Brian E. Thomas, Director Division of Engineering Office of Nuclear Regulatory Research FROM: Dogan Seber, Chief /RA/
Structural, Geotechnical, and Seismic Engineering Branch Division of Engineering Office of Nuclear Regulatory Research
SUBJECT:
RESULTS OF PERIODIC REVIEW OF REGULATORY GUIDE (RG) 1.90, IN-SERVICE INSPECTION OF PRESTRESSED CONCRETE CONTAINMENT STRUCTURES WITH GROUTED TENDONS This memorandum documents the US Nuclear Regulatory Commission (NRC) periodic review of Regulatory Guide (RG) 1.90, Revision 2, In-service Inspection (ISI) of Prestressed Concrete Structures with Grouted Tendons, The RG issued in November 1974 with a revisions in August 1977 and November 2012, describes methods that the NRC considers acceptable for use in developing an appropriate in-service inspection (ISI) program for prestressed concrete containment structures with grouted tendons. As discussed in Management Directive 6.6, Regulatory Guides, the NRC staff reviews RGs approximately every 10 years to ensure that the RGs continue to provide useful guidance. Documentation of the NRC staff review is enclosed.
Based on the results of the periodic review, the staff concludes that no changes to RG 1.90 Revision 2 are warranted at this time. However, if NRCs licensing activities presents a need for revision in future, the NRC staff will perform a complete review analyzing the need from the user office and provide a plan and timeframe to address the issues.
Enclosure:
As stated CONTACT: Ramón L. Gascot, RES/DE/SGSEB 301-415-2004
ML18142C085 OFFICE RES/ RES/ RES/ SUNSI RES/ RES/
DE/RGGIB DE/SGSEB DE/RGGIB Review DE/SGSEB DE/RGGIB NAME J. Parks R. Gascot E. E. D. Seber T. Boyce ODonnell ODonnell DATE 05/22 /18 05/22 /18 05/23/18 05 /23 /18 05/23/18 05/ 29 /18