ML14091A272

Summary of Meeting with Tennessee Valley Authority Regarding Watts Bar Nuclear Plant, Unit 2, Open Items for Licensing

ML14091A272
Person / Time
Site:	Watts Bar
Issue date:	05/28/2014
From:	Justin Poole Watts Bar Special Projects Branch
To:
Poole J
Shared Package
ML14132A283	List: ML14030A109 ML14091A272
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Download: ML14091A272 (9)

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 28, 2014 LICENSEE: Tennessee Valley Authority FACILITY: Watts Bar Nuclear Power Plant, Unit 1

SUMMARY

OF JANUARY 28,2014, MEETING WITH TENNESSEE VALLEY AUTHORITY REGARDING WATTS BAR NUCLEAR PLANT, UNIT 2, OPEN ITEMS FOR LICENSING On January 28, 2014, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of the Tennessee Valley Authority (TVA) at NRC Headquarters, One White Flint North, 11555 Rockville Pike, Rockville, Maryland. The purpose of this meeting was for TVA to discuss with NRC outstanding open items related to the licensing effort for the Watts Bar Nuclear Plant (WBN}, Unit 2.

During the first portion of the meeting TVA discussed a draft request for additional information (RAI) from NRC staff regarding the Draft Offsite Dose Calculation Manual (ODCM) for WBN.

The draft ODCM is available in the Agencywide Documents Access and Management (ADAMS) at Accession No. ML12311A151. The draft RAI is available at ADAMS Accession No. ML14030A109. TVA asked clarifying questions on the RAis numbered 6, 16, and 21. Following the discussion, TVA stated they understood the intent of the RAis and would respond accordingly.

The NRC and TVA staff then discussed the status of each of the electrical open items documented in supplements to NUREG-0847 "Safety Evaluation Report Related to the Operation of Watts Bar Nuclear Plant, Unit 2," as presented in Enclosure 2. The main focus was on open item no. 30 related to degraded voltage issues. TVA stated that they believe they addressed this issue already and that if the NRC staff doesn't agree with TVA's approach that the NRC needs to formally document this in an RAI so that they could find a path to resolution.

In the meeting, the NRC staff agreed to review TVA's last submittal attempting to resolve this issue and would issue RAis if required. Subsequent to the meeting the staff issued an RAI on February 27, 2014 (ADAMS Accession No. ML14059A158).

In addition to the open items documented in NUREG-0847 (of which the latest version is Supplement 26 and available in ADAMS at Accession No. ML13205A136), TVA and the NRC staff discussed Bulletin 2012-01 "Design Vulnerability in Electric Power System" (ADAMS Accession No. ML12074A115) and TVA's response for WBN Unit 2. The NRC staff stated that they were reviewing TVA's response, as well as those from the rest of the industry, and believed that additional information would be needed to resolve the issue for WBN Unit 2. Subsequent to the meeting the staff issued an RAI related to the open phase issue on February 27, 2014 (ADAMS Accession No. ML14059A158).

The NRC licensing project managers reiterated that the NRC is collectively supporting making an operating license decision in early 2015. To support this schedule, TVA needs to provide the appropriate information to facilitate the staff completing its review by summer of 2014.

The NRC electrical engineering staff mentioned that their technical review resources were limited but they were willing to support the overall project schedule.

No regulatory decisions were made at the meeting. Two members of the public joined the meeting by teleconference. Questions from the public addressed the location of radiation monitoring and the availability of the real-time radiation monitoring data. The NRC addressed the questions and noted that although the real time data is not directly available to the public the NRC performs routine inspections and publishes annual reports on radiation monitoring that are publicly available. Members of the public asked about TVA's authority to close the rivers surrounding WBN. The NRC staff noted that TVA could close the river in a flooding scenario and in case of a site emergency where the public would need to be protected.

A member of the public asked the NRC to provide high level milestones and due dates related to the licensing effort for WBN Unit 2. The staff agreed to provide the information and to make updates reflecting the current licensing schedule to the public WBN Unit 2 website; http://www.nrc.gov/info-finder/reactor/wb/watts-bar.html. An updated timeline with high level milestones is available at http://www.nrc.gov/info-finder/reactor/wb/watts-bar/wb2-timeline.pdf.

No Public Meeting Feedback forms were received.

Justin C. Poole, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-391

Enclosures:

1. List of Attendees

2. Table of Open Electrical Engineer Action Items cc w/encls: Distribution via Listserv

MEETING ATTENDANCE LIST Licensee: Tennessee Valley Authority Plant: Watts Bar Nuclear Plant. Unit 2

Subject:

ODCM and Electrical Open Items Date: January 28, 2014 Location: U.S. Nuclear Regulatory Commission Time: 2:30p.m.- 4:00p.m.

Headquarters. Room 0-7B4 NAME TITLE ORGANIZATION John Menninger Deputy Division Director NRC/NRRIDORL NRC/NRRIDORL/Piant Licensing Justin Poole Sr. Project Manager Branch 11-2 NRC/NRRIDORL/Piant Licensing Andy Hon Project Manager Branch 11-2 NRC/NRRIDORL/Piant Licensing Jeanne Dion Project Manager Branch 11-2 Roger Pedersen Sr. Health Physicist NRC/NRRIDRA Chief, Electrical Engineering Jake Zimmerman NRC/NRRIDE/EEEB Branch Roy Mathew Team Leader NRC/NRRIDE/EEEB Mechanical/Nuclear Bill Crouch TVAIWBN2 Engineering Manager Electricai/I&C Engineering Steven Hilmes TVAIWBN2 Manager Bob Bryan Licensing TVA Enclosure 1

NAME TITLE ORGANIZATION Gordon Arent TVA Director, WBN Licensing TVA Gary Morgan Member of Public Sara B Member of Public Southern Alliance for Clean Energy

WATTS BAR UNIT 2 ACTION ITEMS TABLE This table provides a status of required action items associated of all open items, confirmatory issues, and proposed license conditions that the staff has identified.

Cl - Confirmatorv I Item ~ Action Reguired NRC TVA TVA Action Reguired to NRC Action Reguired to Due § Lead Res(;!onse Close Close Date § Reguired/ ~

TVA Lead R

( 1) Cl Review evaluations and EEEB Yes/ EC:1/17/14 TVA to provide letter to NRR 28 corrective actions associated ELE FC: documenting any power with a power assisted cable TVA to provide letter to NRR assisted cable pulls if pull. (NRC safety evaluation documenting any power performed. NRR and/or Rll to dated August 31, 2009, assisted cable pulls if review calculations on any ADAMS Accession No. performed. NRR and/or Rll power assisted cable pulls.

ML092151155) to review calculations on any Results documented in power assisted cable pulls. inspection report. Letter from Results documented in TVA if no power assisted inspection report. Letter cable pulls were done.

from TVA if no power assisted cable pulls were done. NRR Calculation Review Addressed by Maximo Commitment Closure package 10181059 (7) Cl Verify commitment completion Rll No/ EC: Ongoing Include in inspection planning 27 and review electrical design Elec FC: N/A and conduct inspection.

calculations. (TVA letter dated For NRC Inspection I Review Reference closure in IR and October 9, 1990, ADAMS See commitments in TVA SER. Specific actions need to Accession No. ML073551056) Letter. Provide Guillermo be clarified with EEEB.

Crespo a copy of related electrical calculation procedures and provide NRC access to calculations Enclosure 2

Item ~ Action Reguired NRC TVA TVA Action Reguired to NRC Action Reguired to Due § Lead Reseonse Close Close Date § Reguired/ g TVA Lead R (16) Based on the uniqueness of Rll/ No/ EC: Ongoing Inspection Conduct EQ inspection. 27 EQ, the NRC staff must EEEB ELE FC: N/A Document in IR and update perform a detailed inspection status in Appendix HH.

and evaluation prior to fuel load For NRC Inspection I Review to determine how the WBN Provide NRC Lisa Castelli Unit 2 EQ program complies copies of EQ documents as with the requirements of 10 requested for the onsite CFR 50.49. (SSER 22, inspections.

Section 3.11.2, pg 3-12/13)

(17) The NRC staff should verify the Rll/ No/ EC: Ongoing Inspection Conduct EQ inspection. 27 accuracy of the WBN Unit 2 EEEB ELE FC: N/A Document in IR and update EQ list prior to fuel load. status in Appendix HH.

(SSER 22, Section 3.11.2.1, For NRC Inspection/Review:

pg 3-13) provide NRC Lisa Castellicopies of EQ documents as requested for the onsite inspections.

(23) Resolve whether or not TVA's EEEB Yes/ EC: Complete NRR reviewing the April 6, 27 reasoning for not upgrading the ELE FC: N/A 2011 response. TVA stated MSIV solenoid valves to Response provided in TVA to that the MSIV solenoids would Category I is a sound reason to NRC letter dated April 6, be upgraded to Cat I. TVA to the contrary, as specified in 10 2011. provide letter to close out CFR 50.49(1). (SSER 22, commitment from 4/6/11 letter.

Section 3.11.2.2.1, pg 3-15)

(26) For the scenario with an EEEB Yes EC: Complete TVA provided information in 27 accident in one unit and FC: N/A April 6, 2011 letter. Additional concurrent shutdown of the Response provided in TVA to RAis were sent to TVA on second unit without offsite NRC letter dated April 6, 11/18/2011. NRR tech staff power, TVA stated that Unit 2 2011. review and document in SER.

pre-operational testing will Updated response on June This item was also partially validate the diesel response to 7, 2012. reviewed during EDSFI.

sequencing of loads on the EEEB to review results of Unit 2 emergency diesel IDVP and EDSFI reports for generators (EDGs). The NRC impact in this area.

staff will evaluate the status of

Item ~ Action Reguired NRC TVA TVA Action Reguired to NRC Action Reguired to Due § Lead Reseonse Close Close Date § Reguired/ E TVA Lead R this issue and will update the status of the EDG load response in a future SSER.

(SSER 22, Section 8.1)

(30) TVA should confirm that all Rll/ NO/ EC: Complete TVA submitted letter dated 27 other safety-related equipment EEEB ELE FC: N/A August 12, 2011 and update (in addition to the Class 1E Submitted letter 8/12/11. on June 7, 2012. NRR tech motors) will have adequate Updated response on June staff review and document in starting and running voltage at 7, 2012. SER.

the most limiting safety related components (such as motor operated valves, contactors, solenoid valves or relays) at the degraded voltage relay setpoint dropout setting. TVA should also confirm that the final Technical Specifications are properly derived from these analytical values for the degraded voltage settings.

(SSER 22, Section 8.3.1.2, pg 8-1 0}

(32) TVA should provide to the NRC EEEB Yes/ Due date: June 2013 TVA to provide information on 27 staff the details of the ELE (Hilmes) EDG admin limits. NRR tech administrative limits of EDG FC: N/A staff review and document in voltage and speed range, and SER. TVA to submit the basis for its conclusion that Tech Spec review is with amendment to TSs for Unit 2.

the impact is negligible, and Corporate Licensing (Joe (FYI we decided to submit on describe how it accounts for Shea). Provide response for U2 first) the administrative limits in the submittal to NRR.

Technical Specification Note - NRC Rll may have an surveillance requirements for issue with the actual DG EDG voltage and frequency. loading.

(SSER 22, Section 8.3.1.14, pg 8-14)

Item ~ Action Reguired NRC TVA TVA Action Reguired to NRC Action Reguired to Due ~I Lead Reseonse Close Close Date ~

~I Reguired/

TVA Lead (33) Cl TVA stated in Attachment 9 of Rll/ Yes/ EC: Complete TVA provided information in 27 I its letter dated July 31, 2010, EEEB FC: April 6, 2011 letter. TVA to that certain design change Response provided in TVA to notify Rll when work notices (DCNs) are required or NRC letter dated April 6, 20 completed. Rll to verify anticipated for completion of completion of DCNs and WBN Unit 2, and that these include in IR. Update status in DCNs were unverified Appendix HH.

assumptions used in its analysis of the 125 V de vital battery system. Verification of completion of these DCNs to the NRC staff is necessary prior to issuance of the operating license. (SSER 22, Section 8.3.2.3, pg 8-16)

PKG ML14132A283 s

Meeting Notice - ML14015A452 Meeting ummary- ML14091A272 Han d outs - ML14030A109 OFFICE DORULPWB/PMiT DORULPLWB/PM DORULPWB/LA NRRIDE/EEEB DORULPWB/BC DORULPWB/PM NAME JDion JPoole BCiayton JZimmerman JQuichocho JPoole DATE 5/13/14 5/13/14 5/13/14 5/20/14 5/27/14 5/28/14