ML21333A002: Difference between revisions
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{{#Wiki_filter:}} | {{#Wiki_filter:December 2, 2021 LICENSEE: Arizona Public Service Company FACILITY: Palo Verde Nuclear Generating Station, Units 1, 2, and 3 | ||
==SUBJECT:== | |||
==SUMMARY== | |||
OF NOVEMBER 17, 2021, SECOND PUBLIC MEETING WITH ARIZONA PUBLIC SERVICE COMPANY TO DISCUSS UPCOMING EXEMPTION TO ELIMINATE DIVERSE AUXILIARY FEEDWATER ACTUATION SYSTEM USING RISK-INFORMED PROCESS FOR EVALUATIONS FOR PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 (EPID L-2021-NFN-0003) | |||
On November 17, 2021, an Observation public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and Arizona Public Service Company (the licensee) via teleconference. The purpose of this meeting was to discuss the licensees upcoming Exemption from the regulations in Title 10 of the Code of Federal Regulations Part 50, Section 50.62, "Requirements for reduction of risk from anticipated transients without scram (ATWS) events for light- water-cooled nuclear power plants," using the Risk-informed Process for Evaluations for the elimination of a diverse auxiliary feedwater actuation system (DAFAS) at Palo Verde Nuclear Generating Station, Units 1, 2, and 3. The meeting notice and agenda, dated November 3, 2021, are available in the NRCs Agencywide Documents Access and Management System (ADAMS) at Accession No. ML21320A227. A list of attendees is provided in the enclosure. | |||
The licensee provided slides for this public meeting, which are available in ADAMS at Accession No. ML21320A103. The licensees presentation included its clarifications to the NRC staffs three concerns including the need to provide the basis for special circumstances, better addressing manual operator actions, and more fully addressing the defense-in-depth strategy (ADAMS Accession No, ML21306A188). The NRC staff expressed its opinion for the inclusion of manual operator actions to activate AFW pumps to compensate for the elimination of DAFAS, and as a second layer of defense-in-depth. The licensee will think about the manual operator actions and get back to the NRC staff. The licensee stated that it is planning to submit this application in December 2021. | |||
No members of the public called into the meeting. No regulatory decisions or commitments were made at the meeting. | |||
Please direct any inquiries to me at (301) 415-1564 or by e-mail at Siva.Lingam@nrc.gov. | |||
/RA/ | |||
Siva P. Lingam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. STN 50-528, STN 50-529, and STN 50-530 | |||
==Enclosure:== | |||
List of Attendees cc: Listserv | |||
LIST OF ATTENDEES NOVEMBER 17, 2021, PUBLIC MEETING WITH ARIZONA PUBLIC SERVICE COMPANY REGARDING EXEMPTION TO ELIMINATE DIVERSE AUXILIARY FEEDWATER ACTUATION SYSTEM USING RISK-INFORMED PROCESS FOR EVALUATIONS PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 U.S. Nuclear Regulatory Commission Arizona Public Service Company Robert Beaton Nawaporn Aarons Cooke Samir Darbali Alan Campbell Jennifer Dixon-Herrity Robert Chu Mike Franovich Melissa Cole John Hughey Matthew Cox Clay Johnson Dacia Dallago Steve Jones Michael DiLorenzo Nageswara Karipineni Kelly Geiszler Meena Khanna Katherine Gil Michelle Kichline Robert Hicks, Jr, Scott Krepel Thomas Hook Chang Li Sarah Kane Ming Li Jared Schank Siva Lingam Sarah Scott Joseph Lucas Carl Stephenson Charles Peabody Tom Weber Bo Pham David Rahn Victoria Anderson, Nuclear Energy M. J. Ross-Lee Institute (NEI) | |||
Keith Tetter Jana Bergman, Curtiss-Wright Shilp Vasavada Phil Couture (Entergy) | |||
Michael Waters Andrew Mauer (NEI) | |||
Brian Wittick Roy Linthicum (Exelon) | |||
Antonios Zoulis Brett Titus (NEI) | |||
Note: Three people from unknown entities also attended (not able to capture the names and/or organizations by phone numbers in the Microsoft Teams). | |||
Enclosure | |||
ML21320A136 (Package) | |||
ML21320A227 (Meeting Notice) | |||
ML21320A103 (Public Meeting Slides) | |||
ML21333A002 (Meeting Summary) *by email OFFICE NRR/DORL/LPL4/PM* NRR/DORL/LPL4/LA* NRR/DORL/LPL4/BC* NRR/DORL/LPL4/PM* | |||
NAME SLingam PBlechman JDixon-Herrity SLingam DATE 11/24/2021 12/1/2021 12/2/2021 12/2/2021}} | |||
Latest revision as of 10:40, 18 January 2022
| ML21333A002 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/02/2021 |
| From: | Siva Lingam Plant Licensing Branch IV |
| To: | Arizona Public Service Co |
| Lingam S, 301-415-1564 | |
| References | |
| EPID L-2021-NFN-0003 | |
| Download: ML21333A002 (4) | |
Text
December 2, 2021 LICENSEE: Arizona Public Service Company FACILITY: Palo Verde Nuclear Generating Station, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF NOVEMBER 17, 2021, SECOND PUBLIC MEETING WITH ARIZONA PUBLIC SERVICE COMPANY TO DISCUSS UPCOMING EXEMPTION TO ELIMINATE DIVERSE AUXILIARY FEEDWATER ACTUATION SYSTEM USING RISK-INFORMED PROCESS FOR EVALUATIONS FOR PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 (EPID L-2021-NFN-0003)
On November 17, 2021, an Observation public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and Arizona Public Service Company (the licensee) via teleconference. The purpose of this meeting was to discuss the licensees upcoming Exemption from the regulations in Title 10 of the Code of Federal Regulations Part 50, Section 50.62, "Requirements for reduction of risk from anticipated transients without scram (ATWS) events for light- water-cooled nuclear power plants," using the Risk-informed Process for Evaluations for the elimination of a diverse auxiliary feedwater actuation system (DAFAS) at Palo Verde Nuclear Generating Station, Units 1, 2, and 3. The meeting notice and agenda, dated November 3, 2021, are available in the NRCs Agencywide Documents Access and Management System (ADAMS) at Accession No. ML21320A227. A list of attendees is provided in the enclosure.
The licensee provided slides for this public meeting, which are available in ADAMS at Accession No. ML21320A103. The licensees presentation included its clarifications to the NRC staffs three concerns including the need to provide the basis for special circumstances, better addressing manual operator actions, and more fully addressing the defense-in-depth strategy (ADAMS Accession No, ML21306A188). The NRC staff expressed its opinion for the inclusion of manual operator actions to activate AFW pumps to compensate for the elimination of DAFAS, and as a second layer of defense-in-depth. The licensee will think about the manual operator actions and get back to the NRC staff. The licensee stated that it is planning to submit this application in December 2021.
No members of the public called into the meeting. No regulatory decisions or commitments were made at the meeting.
Please direct any inquiries to me at (301) 415-1564 or by e-mail at Siva.Lingam@nrc.gov.
/RA/
Siva P. Lingam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. STN 50-528, STN 50-529, and STN 50-530
Enclosure:
List of Attendees cc: Listserv
LIST OF ATTENDEES NOVEMBER 17, 2021, PUBLIC MEETING WITH ARIZONA PUBLIC SERVICE COMPANY REGARDING EXEMPTION TO ELIMINATE DIVERSE AUXILIARY FEEDWATER ACTUATION SYSTEM USING RISK-INFORMED PROCESS FOR EVALUATIONS PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 U.S. Nuclear Regulatory Commission Arizona Public Service Company Robert Beaton Nawaporn Aarons Cooke Samir Darbali Alan Campbell Jennifer Dixon-Herrity Robert Chu Mike Franovich Melissa Cole John Hughey Matthew Cox Clay Johnson Dacia Dallago Steve Jones Michael DiLorenzo Nageswara Karipineni Kelly Geiszler Meena Khanna Katherine Gil Michelle Kichline Robert Hicks, Jr, Scott Krepel Thomas Hook Chang Li Sarah Kane Ming Li Jared Schank Siva Lingam Sarah Scott Joseph Lucas Carl Stephenson Charles Peabody Tom Weber Bo Pham David Rahn Victoria Anderson, Nuclear Energy M. J. Ross-Lee Institute (NEI)
Keith Tetter Jana Bergman, Curtiss-Wright Shilp Vasavada Phil Couture (Entergy)
Michael Waters Andrew Mauer (NEI)
Brian Wittick Roy Linthicum (Exelon)
Antonios Zoulis Brett Titus (NEI)
Note: Three people from unknown entities also attended (not able to capture the names and/or organizations by phone numbers in the Microsoft Teams).
Enclosure
ML21320A136 (Package)
ML21320A227 (Meeting Notice)
ML21320A103 (Public Meeting Slides)
ML21333A002 (Meeting Summary) *by email OFFICE NRR/DORL/LPL4/PM* NRR/DORL/LPL4/LA* NRR/DORL/LPL4/BC* NRR/DORL/LPL4/PM*
NAME SLingam PBlechman JDixon-Herrity SLingam DATE 11/24/2021 12/1/2021 12/2/2021 12/2/2021