ML20356A083
| ML20356A083 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 12/28/2020 |
| From: | Nancy Salgado Plant Licensing Branch III |
| To: | Moul D, Palm N Electric Power Research Institute, NextEra Energy Duane Arnold |
| Wall S | |
| References | |
| EPID L-2020-LLL-0027 | |
| Download: ML20356A083 (4) | |
Text
December 28, 2020 Mr. Nathan Palm BWRVIP Program Manager Electric Power Research Institute 1300 West W.T. Harris Blvd.
Charlotte, NC 28262 Mr. Don Moul Executive Vice President, Nuclear Division, and Chief Nuclear Officer Florida Power & Light Company Mail Stop: EX/JB 700 Universe Blvd.
Juno Beach, FL 33408
SUBJECT:
DUANE ARNOLD ENERGY CENTER - EXTENSION OF SCHEDULE FOR REPORTING SURVEILLANCE CAPSULE TEST RESULTS UNDER THE INTEGRATED SURVEILLANCE PROGRAM (EPRI LETTER 2020-100)
Dear Mr. Palm and Mr. Moul:
By letter dated December 1, 2020 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML20338A003), the Boiling Water Reactor Vessels and Internals Project (BWRVIP) requested an extension in the reporting date for the results of the testing of the Duane Arnold Energy Center (DAEC), 288 degree reactor vessel material surveillance capsule as part of the BWR [Boiling-Water Reactor] Integrated Surveillance Program (ISP), in accordance with Title 10 of the Code of Federal Regulations (10 CFR) Part 50, Appendix H, Reactor Vessel Material Surveillance Program Requirements. Specifically, the extension would revise the submittal date for the report from October 22, 2021, to no later than April 30, 2022, to allow the BWRVIP additional time for performance of the testing and for the BWRVIP's committee review and approval process. The BWRVIP-requested extension date is approximately 1 year and 6 months after the date of capsule withdrawal. The regulation at 10 CFR Part 50, Appendix H,Section IV.A, states that the summary technical report must be submitted within 1 year of the date of capsule withdrawal, unless an extension is granted.
Electric Power Research Institute proprietary reports BWRVIP-86-A, BWR Vessel and Internals Project, Updated BWR Integrated Surveillance Program (ISP) Implementation Program, October 2002 (ADAMS Package Accession No. ML023190497), and BWRVIP-86, Revision 1-A, BWR Vessel and Internals Project, Updated BWR Integrated Surveillance Program (ISP)
Implementation Plan, May 2013 (ADAMS Package Accession No. ML131760082), provide guidance for the establishment of an acceptable alternative to all existing BWR plant-specific reactor pressure vessel surveillance programs for the purpose of maintaining compliance with the requirements of Appendix H to 10 CFR Part 50 through the end of the current facility 40-year and 60-year extended operating licenses, respectively. As indicated in BWRVIP-86,
N. Palm and Revision 1-A, the BWRVIP shall submit any changes regarding the ISP testing matrix, withdrawal schedule, or testing and reporting of individual capsule results to the U.S. Nuclear Regulatory Commission (NRC) for review and approval prior to implementing these changes.
The DAEC 288-degree surveillance capsule was withdrawn from the reactor on October 22, 2020, in accordance with the BWRVIP ISP withdrawal schedule documented in BWRVIP-86, Revision 1-A, as revised by NRC letter dated July 23, 2019 (ADAM Accession No. ML19198A010). As part of an integrated surveillance program, the staff noted that the BWRVIP ISP capsule reports go through the BWRVIP's committee review process. This review process adds several months to the timeline for the completion and publication of the capsule summary technical report.
Based on the information in the letter dated July 23, 2019, and BWRVIP-86, Revision 1-A, the NRC staff noted that the withdrawal of DAEC 288-degree surveillance capsule in late 2020 does not impact any of the participants in the BWRVIP ISP because of the following:
The DAEC 288-degree surveillance capsule fluence is still greater than 100 percent of the 60-year 1/4T fluence for the six target plate materials that rely on this capsule, which is consistent with the results in BWRVIP-86, Revision 1-A.
The representative weld heat (SMAW) is only applicable to DAEC and no other participants in the BWRVIP rely on the data from this representative weld heat; therefore, the data from this material is no longer necessary to support monitoring changes in the fracture toughness properties of the DAEC reactor vessel due to cessation of power operations in 2020.
The data from the representative plate heat (B0673-1) is no longer necessary to support monitoring changes in the fracture toughness properties of the DAEC reactor vessel due to cessation of power operations in 2020.
Based on the above, the NRC staff finds the approximate 6-month extension to the report submittal date does not impact DAEC due to its permanent cessation of operations, nor does it delay the ability to determine embrittlement for other participants in the ISP. The NRC staff concludes that extending the reporting of the results from the DAEC 288-degree surveillance capsule will not change the overall effectiveness of the ISP. Accordingly, the extension to April 30, 2022, for submittal of the DAEC 288-degree surveillance capsule summary technical report is acceptable.
N. Palm and Should you have further questions regarding implementation of the ISP, please contact the DAEC Project Manager, Scott Wall, at 301-415-2855 or Scott.Wall@nrc.gov..
Sincerely, Nancy L. Salgado, Chief Plant Licensing Branch III Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-331 cc: Listserv Robert F.
Kuntz Digitally signed by Robert F. Kuntz Date: 2020.12.28 11:11:37 -05'00'
ML20356A083 OFFICE NRR/DORL/LPL3/PM*
NRR/DORL/LPL3/LA*
NSIR/DNRL/NVIB/BC*
NRR/DORL/LPL3/BC*
NAME SWall SRohrer (JBurkhardt for)
HGonzalez NSalgado (RKuntz for)
DATE 12/22/2020 12/22/2020 12/14/2020 12/28/2020