ML17353A190
| ML17353A190 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/29/2017 |
| From: | Siva Lingam, Watford M Plant Licensing Branch IV |
| To: | Arizona Public Service Co |
| Watford M | |
| References | |
| EPID L-2017-LRM-0064 | |
| Download: ML17353A190 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 December 29, 2017 LICENSEE: Arizona Public Service Company FACILITY: Palo Verde Nuclear Generating Station, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF DECEMBER 12, 2017, PUBLIC MEETING WITH ARIZONA PUBLIC SERVICE COMPANY, ON PROPOSED RELIEF REQUEST 50 FOR PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 (EPID L-2017-LRM-0064)
On December 12, 2017, a Category 1 public teleconference was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Arizona Public Service Company (APS or the licensee). The purpose of the meeting was to discuss APS's plans to submit a request for use of an alternative pressure retaining boundary for the system leakage test at Palo Verde Nuclear Generating Station, Units 1, 2, and 3 (PVNGS). The meeting notice and agenda, dated November 30, 2017, are available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML17345A403. A list of attendees is provided as the Enclosure. The licensee provided slides for this public meeting, which are available in ADAMS at Accession No. ML17345A371.
The licensee presented its plans for its upcoming request, denoted as Relief Request (RR) 50, to use an alternative pressure retaining boundary for the system leakage test for the third 10-year inservice inspection (ISi) interval at PVNGS. The licensee stated that it plans to submit RR 50 in accordance with Title 10 of the Code of Federal Regulations ( 10 CFR) 50.55a(z)(2),
"Hardship without a compensating increase in quality and safety," based upon the requirements of American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code) representing a hardship or unusual difficulty without a compensating increase in the level of quality and safety. The licensee proposes to use ASME Code Case N-798, "Alternative Pressure Testing Requirements for Class 1 Piping between the First and Second Vent, Drain, and Test Isolation Devices,Section XI," and ASME Code Case N-800, "Alternative Pressure Testing Requirements for Class 1 Piping between the First and Second Injection Valves,Section XI," as an alternative to the ASME Code requirements. The licensee clarified that RR 50 will apply to ASME Code Case 1 pressure retaining components that are beyond the first normally closed valve to the second boundary component. In addition, the licensee stated that NRC has authorized similar requests for alternative for the first two 10-year ISi intervals at PVNGS.
On Slide 5 of its presentation, APS provided a table with the scheduling for the third 10-year ISi intervals for each of the units at PVNGS. The NRC is currently reviewing RR 56, which was submitted by APS on November 10, 2017 (ADAMS Accession No. ML17318A472). If RR 56 is approved, it would extend the end of the third 10-year ISi interval for Unit 2 to October 31, 2018.
In addition, if the current 10 CFR 50.55a rulemaking to adopt Regulatory Guide 1.147, "lnservice Inspection Code Case Acceptability, ASME Section XI, Division 1," Revision 18 is approved prior to March 17, 2018, or prior to October 31, 2018, if RR 56 is approved, APS would no longer need RR 50 and would withdraw the request. The licensee stated that there is
a typo on the second note on Slide 5. The second note should read: "Should 10 CFR 50.55a rulemaking be effective prior to March 17, 2018, or prior to October 31, 2018 if RR 56 is approved, APS would withdraw RR 50." The licensee stated that it plans to submit RR 50 in December 2017. NRC approval is requested by March 17, 2018, if RR 56 is not approved, or by October 31, 2018, if RR 56 is approved.
The NRC staff queried the licensee about its discussion in RR 56, which states that the "planned third 10-year ISi interval examinations have been completed for [PVNGS] Unit 2 and the interval closeout is in process," in comparison to the licensee's plans to submit RR 50, which requests NRC prior approval for use of an alternative. The licensee indicated that it has performed the system leakage tests in accordance with ASME Code Case N-798 and ASME Code Case N-800.
Members of the public were not in attendance. Public Meeting Feedback forms were not received.
Please direct any inquiries either to me at 301-415-1233 or Margaret.O'Banion@nrc.gov, or to Siva Lingam at 301-415-1564 or Siva.Lingam@nrc.gov.
Margaret W. O'Banion, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-528, 50-529 and 50-530
Enclosure:
List of Attendees cc: Listserv
LIST OF ATTENDEES DECEMBER 12, 2017, MEETING WITH ARIZONA PUBLIC SERVICE COMPANY REGARDING PROPOSED RELIEF REQUEST 50 PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 Margaret O'Banion U.S. Nuclear Regulatory Commission (NRC)
David Alley NRC Ali Rezai NRC Seung Min NRC Siva Lingam NRC Geoff Miller NRC David You NRC Jim Drake NRC Michael Dilorenzo Arizona Public Service Company (APS)
Boris Bolf APS Matthew Cox APS Keith Jackson APS Nawaporn Aaronscooke APS Carl Stephenson APS Robert Ruttle APS Enclosure
Meeting Notice ML17345A403 Meeting Summary ML17353A190 Handouts ML17345A371 *via email OFFICE N RR/DORL/LPL4/PM N RR/DORL/LPL4/LA NRR/DMLR/MPHB/BC*
NAME MO'Banion PBlechman DAIiey DATE 12/21/2017 12/27/2017 12/20/2017 OFFICE NRR/DORL/LPL4/BC N RR/DORL/LPL4/PM NAME RPascarelli (LRegner for) MO'Banion (Slingam for)
DATE 12/29/2017 12/29/2017