ML18347B346

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Summary Report 658th Meeting of Advisory Committee on Reactor Safeguards - November 1-2, 2018
ML18347B346
Person / Time
Issue date: 12/13/2018
From: Michael Corradini
Advisory Committee on Reactor Safeguards
To: Kristine Svinicki
NRC/Chairman
Banks M
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Download: ML18347B346 (5)


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UNITED STATES NUCLEAR REGULATORY COMMISSION ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, DC 20555 - 0001 December 13, 2018 The Honorable Kristine L. Svinicki Chairman U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001

SUBJECT:

SUMMARY

REPORT - 658th MEETING OF THE ADVISORY COMMITTEE ON REACTOR SAFEGUARDS, NOVEMBER 1-2, 2018

Dear Chairman:

During its 658th meeting, November 1-2, 2018, the Advisory Committee on Reactor Safeguards (ACRS) discussed several matters and completed the following reports, letter, and memorandum:

REPORTS Reports to Kristine L. Svinicki, Chairman, NRC, from Michael L. Corradini, Chairman, ACRS:

Report on the Safety Aspects of the License Renewal Application for the Waterford Steam Electric Station, Unit 3, dated November 21, 2018 Report on the Safety Aspects of the License Renewal Application for the River Bend Station, Unit 1, dated November 15, 2018 LETTER Letter to Margaret M. Doane, Executive Director for Operations, NRC, from Michael L. Corradini, Chairman, ACRS:

Draft Digital Instrumentation & Controls Interim Staff Guidance Digital I&C ISG-06, Licensing Process, Revision 2, dated November 8, 2018 MEMORANDUM Memorandum to Margaret M. Doane, Executive Director for Operations, NRC, from Andrea D. Veil, Executive Director, ACRS:

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1. Waterford Steam Electric Station, Unit 3 License Renewal Application The Committee met with representatives of the NRC staff and Entergy to review the staffs final safety evaluation report for the Waterford, Unit 3 license renewal application. In its application, Entergy requests renewal of the operating license for a period of 20 years beyond the current expiration date of December 18, 2024.

In its final safety evaluation report, the staff documented its review of the license renewal application and other information submitted by the applicant and obtained through staff audits and inspections at the plant site. The staff reviewed the completeness of the identification of structures, systems, and components that are within the scope of license renewal. The staff also reviewed the integrated plant assessment process; the identification of plausible aging mechanisms associated with passive, long-lived components; the adequacy of the Aging Management Programs (AMPs); and the identification and assessment of Time-Limited Aging Analyses (TLAAs) requiring review. The staff conducted license renewal audits and performed a license renewal inspection at Waterford. The audits verified the appropriateness of the scoping and screening methodology for AMPs, the appropriateness of the aging management review, and the acceptability of the TLAAs.

Entergy will implement 41 AMPs for license renewal, comprised of 29 existing programs and 12 new programs. Of the 12 new programs, 10 are consistent with the GALL Report, two are consistent with allowed exceptions. Of the 29 existing programs, six are consistent with the GALL Report, 19 are consistent with enhancements, three are consistent with enhancements and allowed exceptions, and one (Periodic Surveillance and Preventive Maintenance) is plant-specific with enhancements. The license renewal application includes five programs with allowed exceptions to the GALL Report. The programs with exceptions and enhancements are acceptable.

We agree with the staff that there are no issues related to the matters described in 10 CFR 54.29(a)(1) and (a)(2) that preclude renewal of the operating license for Waterford. This report fulfills the requirement of 10 CFR 54.25 that the ACRS review and report on all license renewal applications.

Committee Action The Committee issued a report to the NRC Chairman on this matter, dated November 21, 2018, with the following conclusion and recommendation: 1) The programs established and the commitments made by Entergy provide reasonable assurance that Waterford can be operated in accordance with its current licensing basis for the period of extended operation without undue risk to the health and safety of the public, and 2) The Entergy application for renewal of the operating license for Waterford should be approved.

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2. River Bend Nuclear Generating Station, Unit 1 License Renewal Application The Committee met with representatives of the NRC staff and Entergy to review the staffs final safety evaluation report for the River Bend, Unit 1 license renewal application. In its application, Entergy requests renewal of the operating license for a period of 20 years beyond the current expiration date of August 29, 2025.

In its final safety evaluation report, the staff documented its review of the license renewal application and other information submitted by the applicant and obtained through staff audits and inspections at the plant site. The staff reviewed the completeness of the identification of structures, systems, and components that are within the scope of license renewal. The staff also reviewed the integrated plant assessment process; the identification of plausible aging mechanisms associated with passive, long-lived components; the adequacy of the AMPs; and the identification and assessment of TLAAs requiring review. The staff conducted license renewal audits and performed a license renewal inspection at River Bend. The audits verified the appropriateness of the scoping and screening methodology for AMPs, the appropriateness of the aging management review, and the acceptability of the TLAAs.

Entergy will implement 43 AMPs for license renewal, comprised of 31 existing programs and 12 new programs. All 12 of the new programs are consistent with the GALL Report. Of the 31 existing programs, 10 are consistent with the GALL Report, 13 are consistent with enhancements, two are consistent with exceptions, five are consistent with enhancements and allowed exceptions, and one is a plant-specific program with enhancements (Periodic Surveillance and Preventive Maintenance). The license renewal application includes seven programs with allowed exceptions to the GALL Report. The programs with exceptions and enhancements are acceptable.

We agree with the staff that there are no issues related to the matters described in 10 CFR 54.29(a)(1) and (a)(2) that preclude renewal of the operating license for River Bend. This report fulfills the requirement of 10 CFR 54.25 that the ACRS review and report on all license renewal applications.

Committee Action The Committee issued a report to the NRC Chairman on this matter, dated November 15, 2018, with the following conclusion and recommendation: 1) The programs established and committed to by Entergy to manage age-related degradation provide reasonable assurance that River Bend can be operated in accordance with its current licensing basis for the period of extended operation without undue risk to the health and safety of the public, and

2) Entergys application for renewal of the operating license for River Bend should be approved.

RECONCILIATION OF ACRS COMMENTS AND RECOMMENDATIONS The Committee considered the Executive Director for Operations response of August 14, 2018, to the July 19, 2018 ACRS letter, Brunswick Steam Electric Plant Units 1 and 2 Maximum Extended Line Load Limit Plus License Amendment Request. The Committee was satisfied with the Executive Director for Operations response.

4 The Committee considered the Executive Director for Operations response of September 11, 2018, to the July 18, 2018 ACRS letter, Draft Digital Instrumentation &

Controls Interim Staff Guidance, Digital I&C-ISG-06, Licensing Process, Revision 2.

The Committee issued a response to the Executive Director for Operations requesting the staff provide the basis as to why the fifth fundamental design principle for the architecture design of DI&C applications, Control of Access, was not incorporated into the updated draft Digital I&C-ISG-06, Revision 2, and provide any additional changes that would help ensure prevention of remote electronic access to in-plant systems and networks from sources external to the plant.

SCHEDULED TOPICS FOR THE 659th ACRS MEETING The following topics are scheduled for the 659th ACRS meeting, to be held December 6-8, 2018:

Clinch River Early Site Permit Seabrook License Renewal Application Meeting with the Commission Sincerely,

/RA/

Michael Corradini Chairman

5 December 13, 2018

SUBJECT:

SUMMARY

REPORT - 658th MEETING OF THE ADVISORY COMMITTEE ON REACTOR SAFEGUARDS, NOVEMBER 1-2, 2018 Accession No: ML18347B346 Publicly Available (Y/N): _Y___

Sensitive (Y/N): N If Sensitive, which category?

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NRC Users or ACRS only or See restricted distribution OFFICE ACRS SUNSI Review ACRS ACRS NAME MBanks MBanks AVeil MCorradini (AVeil for)

DATE 12/ 13 /18 12 /13 /18 12/ 13 /18 12/ 13 /18 OFFICIAL RECORD COPY