ML19058A246

Summary of February 19, 2019, Public Meeting with DTE Electric Company Regarding Upcoming License Amendment Request to Amend the License Basis to Accept the Additional Debris Sources

ML19058A246
Person / Time
Site:	Fermi
Issue date:	03/20/2019
From:	Sujata Goetz Plant Licensing Branch III
To:	DTE Electric Company
Goetz S 415-8004
References
EPID L-2019 LRM-0007
Download: ML19058A246 (4)

Text

LICENSEE:

FACILITY:

SUBJECT:

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, O.C. 20555-0001 March 20, 2019 DTE Electric Company Fermi 2

SUMMARY

OF FEBRUARY 19, 2019, PUBLIC MEETING WITH DTE ELECTRIC COMPANY REGARDING UPCOMING LICENSE AMENDMENT REQUEST TO AMEND THE LICENSE BASIS TO ACCEPT THE ADDITIONAL DEBRIS SOURCES (EPID L-2019-LRM-0007)

On February 19, 2019, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives of DTE Electric Company {DTE, or the licensee).

The purpose of the meeting was to discuss Fermi 2's upcoming license amendment request (LAR) which would request to amend the license to accept the debris sources beyond the current design basis. The meeting notice can be found in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML 19038A053.

The attendance list for the meeting is enclosed.

The licensee's presentation slides are available at ADAMS Accession No. ML 19045A269.

NRC/DTE Discussion The NRC staff and DTE discussed items that would be important to include in the LAR. The discussion between the NRC and DTE included the following:

• The NRC staff described the need to address the principles of risk-informed decision making (e.g., defense-in-depth, safety margin, performance monitoring) in the LAR, to quantify and address uncertainty (e.g., use of loss of coolant accident frequencies from NUREG-1829), and discuss assumptions regarding the risk evaluation.

• The NRC staff stated that the analysis for the LAR that Fermi 2 is performing should include sensitivity studies to help assess uncertainties.

The staff suggested that the licensee review the docketed information regarding the use of risk in assessing the effects of debris on long-term cooling submitted to the NRC by other power plants.

• The NRC staff stated that it will be validating the modeling performed for debris generation and transport to the emergency core cooling system strainers.

• The NRC staff stated that even if a break is isolated quickly, the damage to the insulation within the zone of influence probably had occurred prior to the isolation.

This should be addressed in the analysis.

• DTE clarified that the sensitivity studies for coatings and labeling will be done to define new licensing basis limits for these debris types. The staff stated that the 1/8 inch threshold assumption mentioned for the coatings sensitivity study would need to be justified.

• DTE provided clarifications regarding the content of their presentation.

These clarifications were beneficial to the NRC staff in understanding the proposed path forward.

• DTE stated that it expects to submit the LAR in fall of 2019 Two members of the public participated in the meeting by teleconference.

One member of the public referenced a recent NRC inspection finding of debris in the torus. The staff responded that NRC will be following up with the licensee to ensure that the recommended corrective actions are taken. Another member of the public was concerned that an operator may take actions that could makes things worse. The staff explained that the failure of operators to take beneficial actions is modeled and that staff's risk-informed decision-making includes consideration of defense-in-depth as well as safety margins thereby not relying solely on such operator actions. No regulatory decisions or commitments were made during the meeting. Please direct any inquiries to me at 301-415-8004, or Sujata.Goetz@nrc.gov.

Docket No. 50-341

Enclosure:

List of Attendees cc: Listserv /) 1/ +/-5-. .. .~ / '. i a_/ (fa{/~ll_

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• ger Plant icensing Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation 4 LIST OF ATTENDEES FEBRUARY 19, 2019 PUBLIC TELECONFERENCE MEETING WITH DTE ELECTRIC COMPANY NAME ORGANIZATION Sue Goetz NRC/NRR/DORL/LPL3 Josh Whitman NRC/NRR/DSS/SNPB Reed Anzalone NRC/NRR/DSS/SRXB Josh Wilson NRC/NRR/DSS/SRXB Yuri Orechwa NRC/NRR/DSS/SNPB Mehdi Reisi Fard NRC/NRR/DRA/APLB Shilp Vasarada NRC/NRR/DRA/APLB Steven Jones NRC/NRR/DSS/SCPB Steve Smith NRC/NRR/DSS/STSB Scott Maglio DTE Electric Company Jason Haas DTE Electric Company Phillip Summers DTE Electric Company Christopher Vukonich DTE Electric Company Kendra Hullum-Lawson DTE Electric Company Rondi Sloan DTE Electric Company Robert Choromokos DTE Electric Company Bruce Leittier DTE Electric Company Kent Sutton DTE Electric Company

SUMMARY

OF FEBRUARY 19, 2019, PUBLIC MEETING WITH DTE ELECTRIC COMPANY REGARDING UPCOMING LICENSE AMENDMENT REQUEST TO AMEND THE LICENSE BASIS TO ACCEPT THE ADDITIONAL DEBRIS SOURCES (EPID L-2019-LRM-0007)

DATED MARCH 20, 2019 DISTRIBUTION:

PUBLIC RidsACRS MailCTR Resource RidsNrrDorl Resource RidsNrrDorlLpl3 Resource RidsNrrDssSrxb Resource RidsNrrDssSnpb Resource RidsNrrLASRohrer Resource RidsNrrPMFermi Resource RidsRgn3MailCenter Resource TWertz, NRR BHeida,NRR ADAMS Accession Nos.: Package: ML 19058A246 Meeting Notice: ML 19038A053 Slides: ML 19045A269 Meeting Summary: ML 19058A246 OFFICE NRR/DORL/LPL3/PM NAME SGoetz DATE 2/26/19 OFFICE NRR/DSS/DRA/BC NAME MReisi Fard DATE 2/26/19 NRR/DORL/LPL3/LA SRohrer 2/27/19 SGoetz SJones, RAnzalone JWilson JWhitman CTilton SVasavada MReisi Fard JWilson YOrechwa SSmith NRR/DSS/SNPB/BC Rlukes 2/25/19 NRR/DORL/LPL3/BC NRR/DORL/LPL3/PM DWrona SGoetz 3/20/19 3/20/19 OFFICIAL RECORD COPY NRR/DSS/STSB/BC VCusumano 2/26/19