ML15125A331
| ML15125A331 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 05/21/2015 |
| From: | Justin Poole Watts Bar Special Projects Branch |
| To: | |
| Minarik A, NRR/DORL/LPLWB, 415-6185 | |
| Shared Package | |
| ML15125A344 | List: |
| References | |
| Download: ML15125A331 (7) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 21, 2015 APPLICANT: Tennessee Valley Authority FACILITY:
Watts Bar Nuclear Plant, Unit 2
SUBJECT:
SUMMARY
OF MARCH 18, 2015, MEETING WITH TENNESSEE VALLEY AUTHORITY REGARDING THE WAITS BAR NUCLEAR PLANT, UNIT 2, OPERATING LICENSE APPLICATION (OPEN ITEM RELATED TO GENERAL DESIGN CRITERION 5 AND REACTOR OVERSIGHT PROCESS TRANSITION)
On March 18, 2015, a Category 1 public teleconference was held between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives of the Tennessee Valley Authority (TVA). There were two topics of discussion at this meeting. First, the representatives from TVA wanted to discuss TVA's strategy for addressing staff concerns regarding the use of shared systems at the Watts Bar Nuclear Plant (WBN) related to compliance with General Design Criterion (GDC) 5. Second, representatives from TVA and the NRC discussed the draft Reactor Oversight Process (ROP) Transition Plan. The meeting notice and agenda, dated February 20, 2015, is available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML15075A010. A list of attendees is enclosed.
The NRC staff did not provide any presentations. TVA provided presentations on both topics of discussion. The presentation for the discussion on GDC 5 is available in ADAMS at Accession No. ML15125A319. The presentation for the discussion on the ROP Transition Plan is available in ADAMS at Accession No. ML15125A314.
The discussion on GDC 5 (sharing of structures, systems, and components important to safety) was a follow-up to a proposed change to the technical specifications (TSs) submitted by TVA on January 22, 2015 (ADAMS Accession No. ML15023A187). The Essential Raw Cooling Water (ERCW) System and the Component Cooling Water System (CCS) are safety systems that are shared by WBN, Unit 1 and Unit 2. As such, the systems' designs must conform to the requirements of GDC 5. TVA identified two events where sufficient cooling may not be available to achieve and maintain Cold Shutdown (Mode 5) on both units for a limited period of time following initiation of those events. The design basis safe shutdown condition for WBN is hot standby (Mode 3); however, the lack of sufficient cooling capability could result in the need to allow a previously shutdown unit to heat up from Mode 4 or Mode 5 for a short time period.
Therefore, TVA proposed the January 22, 2015, TS change to permit WBN, Unit 2, to return to Mode 3 from Mode 4 or Mode 5 for a limited time period, without all of the conditions for a mode change required by the TSs being met. The staff informed TVA of concerns with the proposed TS change on February 19, 2015. TVA stated at that time that it would conduct additional analyses to address the NRC staff's concerns and provide a revised submittal.
TVA representatives briefly summarized the GDC 5 concern, discussed the WBN plant design basis, provided a summary of the ERCW and CCS System designs, and provided a summary of the limiting event for GDC 5. The TVA representatives described options considered for ensuring compliance with GDC 5. The preferred option identified involved ensuring the availability of additional cooling system pumps during the time period of concern in order to ensure availability of sufficient cooling capability to preclude the need to allow a shutdown unit to heat up. TVA representatives stated that design engineering would be completed and that TVA would target providing a submittal by April 30, 2015. The NRC staff reiterated that a complete and technically sufficient submittal would be essential to ensuring timely staff review to meet the current schedule for issuance of the WBN, Unit 2, operating license.
The discussion on the draft ROP Transition Plan was a continuation of the discussion held on March 4, 2015. The meeting summary can be found in ADAMS at Accession No. ML15069A356. Representatives from TVA spoke, followed by their presentation slides, as they provided the NRC staff with additional comments on the draft ROP Transition Plan. TVA's comments centered on requesting that the staff reconsider transitioning four of the cornerstones of the ROP upon license issuance and ensuring that mitigating system performance indicators that could produce false indicators due to a lack of operational data are properly categorized.
The staff heard TVA's concerns and indicated that the dialogue they had with TVA on this topic has been helpful. Ultimately, however, the finalization of the ROP Transition Plan is an NRC initiative with no required input from the public and/or industry. The staff encouraged TVA to bring forth its concerns as part of the ROP "Frequently Asked Questions" process.
Members of the public were in attendance. Public Meeting Feedback forms were not received.
One member of the public, Garry Morgan of the Bellefonte Efficiency & Sustainability Team and Mothers Against Tennessee River Radiation, had a comment for the staff regarding the TVA slides. The slide in question stated that there was "no impact" on radiological protection at the site. Mr. Morgan explained that he feels this statement is in error and talked about cancer rates in the area as an indication that there is an impact. The NRC staff explained that in the context of the slide, TVA merely meant that they do not expect the ROP Transition Plan to have an impact in that area. The NRC staff reiterated that they take the protection of the public health and safety seriously and consider the impacts of radiological consequences in the licensing process. Mr. Morgan had additional comments that were not germane to the discussion, so the staff directed him to the avenues where his views could be properly heard, including at a public meeting scheduled for March 26, 2015, in the area of WBN.
Docket No. 50-391
Enclosure:
List of Attendees cc w/enclosure: Distribution via Listserv
LIST OF ATTENDEES MARCH 18, 2015, MEETING WITH TENNESSEE VALLEY AUTHORITY REGARDING THE WATTS BAR NUCLEAR PLANT, UNIT 2, OPERATING LICENSE APPLICATION (GENERAL DESIGN CRITERION 5 AND REACTOR OVERSIGHT PROCESS TRANSITION)
Applicant: Tennessee Valley Authority Plant: Watts Bar Nuclear Plant. Unit 2
Subject:
Reactor Oversight Process Transition Plan Date: March 18, 2015 Location: Teleconference NAME TITLE Senior Project Manager, Justin Poole Watts Bar Nuclear Plant, Unit 2 Anthony Minarik Project Manager Bob Schaaf Project Manager Jessie Quichocho Branch Chief Bob Dennig Branch Chief Greg Casto Branch Chief Robert Elliott Branch Chief Time: 9:00 a.m. - 10:45 a.m. and 1 :00 p.m. - 2:30 p.m.
ORGANIZATION U.S. Nuclear Regulatory Commission (NRC)/Office of Nuclear Reactor Regulation (NRR)/Division of Operating Reactor Licensing (DORL)/Watts Bar Special Projects Branch (LPWB)
NRC/NRR/DORL/LPWB NRC/NRR/DORL/LPWB NRC/NRR/DORL/LPWB NRC/NRR/Division of Safety Systems (DSS)/Containment and Ventilation Branch (SCVB)
NRC/NRR/DSS/Balance of Plant Branch (SBPB)
NRC/NRR/DSS/Technical Specifications Branch (STSB)
Enclosure NAME TITLE ORGANIZATION Christopher Jackson Branch Chief NRC/NRR/DSS/Reactor Systems Branch Ahsan Sallman Senior Reactor Systems NRC/NRR/DSS/SCVB Engineer NRC/NRR/Division of Roy Mathew Team Leader Engineering/Electrical Engineering Branch Diana Woodyatt Reactor Systems Engineer NRR/DSS/SCVB Jerry Purciarello Senior Reactor Systems NRR/DSS/SBPB Engineer Pete Snyder Reactor Engineer NRR/DSS/STSB Frank Koontz Engineering Specialist Tennessee Valley Authority, Watts Bar Nuclear Plant, Unit 2 Russel Stroud Senior Program Manager, Tennessee Valley Authority, Watts Licensing Bar Nuclear Plant Allen Howe Deputy Director NRR/Division of Inspection and Regional Support (DIRS)
Nathan Sanfilippo Branch Chief NRR/DI RS/Performance Assessment Branch (IPAB)
Zach Hollcraft Reactor Operations Engineer NRR/DIRS/IPAB NAME TITLE ORGANIZATION Chris Regan Branch Chief NRR/DIRS/Reactor Inspection Branch (IRIS)
Rll/Division of Construction Projects Robert Haag Branch Chief (DCP)/Construction Projects Branch 3 (CPB3)
Christopher Even Project Engineer RI l/DCP/CPB3 Shane Sandal Branch Chief Rll/Division of Reactor Projects/Reactor Projects Branch 2 Rusty Stroud Senior. Program Manager, Tennessee Valley Authority Licensing Eugene Cobey Senior Program Manager, Tennessee Valley Authority Engineering Please direct any inquiries to me at 301-415-2048 or justin.poole@nrc.gov.
Docket No. 50-391
Enclosure:
List of Attendees IRA!
Justin C. Poole, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation cc w/enclosure: Distribution via Listserv DISTRIBUTION:
PUBLIC LPWB r/f RidsACRS_MailCTR RidsNrrDorllp_WB RidsN rrPMWattsBar1 RidsNrrDssSbpb RMathew, NRC PSnyder, NRR CEven, Rll RidsNrrPMWattsBar2 RidsNrrLABClayton RidsRgn2MailCenter AMinarik, NRR BSchaaf, NRR RidsN rrDssStsb DWoodyatt, NRR RidsNrrDirs SSandal, Rll LRonewicz, NRR MWaters, OEDO TWertz, NRR AWilson, Rll RidsNrrDssScvb ASallman, NRR JPurciarello, NRR RidsNrrDirslpab RHaag, NRR AD AMSA ccession Nos.: ML15125A331 Package: ML15125A344 OFFICE DORL/LPWB/PM DORL/LPWB/LAiT DORL/LPWB/LA DORL/LPWB/BC DORL/LPWB/PM NAME AMinarik LRonewicz BClayton JQuichocho JPoole (JPoole for)
DATE 5/21/15 5/7/15 5/7/15 5/19/15 5/21/15 OFFICIAL RECORD COPY