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MONTHYEARML16062A3042016-03-0202 March 2016
TS 5.3.2 LAR Pre-Submittal Meeting Presentation - March 2, 2016
Project stage: Meeting
ML16081A2052016-03-24024 March 2016
Summary of Meeting with STP Nuclear Operating Company to Discuss Potential License Amendment Request for South Texas Project, Unit 1 Regarding Permanent Operation with 56 Control Rods
Project stage: Meeting
2016-03-02
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Category:Meeting Summary
MONTHYEARML22252A0432022-09-12012 September 2022
Summary of August 31, 2022, Webinar with STP Nuclear Operating Company to Discuss a Proposed LAR to Revise the Dose Consequence Analysis for Main Steam Line Break and Locked Rotor Analysis Events for STP, Units 1 & 2
ML22147A0932022-06-0606 June 2022
2021 Annual Assessment Public Meeting Summary
ML21236A3082021-09-10010 September 2021
Regulatory Audit Summary Regarding License Amendment Request to Revise Moderator Temperature Coefficient Surveillance Requirements
ML21222A1192021-08-12012 August 2021
Summary of Meeting with STP Nuclear Operating Company Regarding the License Amendment Request to Revise the Moderator Temperature Coefficient Surveillance Requirements for South Texas Project, Units 1 and 2
ML21140A3892021-05-24024 May 2021
Riv Column 1 EOC 2020 Public Meeting Summary
ML20279A8152020-10-20020 October 2020
Summary of September 14, 2020, Presubmittal Teleconference with STP Nuclear Operating Company Regarding the Proposed LAR to Revise the Moderator Temperature Coefficient Surveillance Requirement for South Texas Project, Units 1 and 2 (EPID L
ML20189A2832020-07-0707 July 2020
Summary of Region IV Annual Assessment Public Meeting
ML20163A5522020-06-12012 June 2020
Summary of April 21, 2020, Teleconference with STP Nuclear Operating Company to Discuss the License Amendment Request to Revise the Emergency Plan for South Texas Project, Units 1 and 2
ML20140A2612020-05-27027 May 2020
May 5, 2020, Summary of Teleconference with STP Nuclear Operating Company to Discuss a Proposed Exigent License Amendment Request to Revise the Pressure of the Safety Injection Accumulators for South Texas Project, Unit 1
ML20107J5482020-04-15015 April 2020
Teleconference Regarding NRC Observations on the March 30, 2020, License Amendment Request to Revise the Emergency Plan STP Nuclear Operation Company South Texas Project, Units 1 and 2, Dockets 50-498 and 50-499
ML20049A0572020-02-26026 February 2020
Summary of February 6, 2020, Meeting with STP Nuclear Operating Company to Discuss a Proposed License Amendment Request to Revise the Emergency Plan for South Texas Project, Units 1 and 2 (EPID L- 2020-LRM-0004)
ML19350C5902019-12-17017 December 2019
12/3/19, Summary of Teleconference with STP Nuclear Operating Company to Discuss a Proposed License Amendment Request to Revise the Emergency Plan for South Texas Project, Units 1 and 2,
ML19102A0162019-04-16016 April 2019
4/10/2019 Summary of Public Teleconference Regarding Potential Submission of a Relief Request to Allow Use of Carbon Fiber Reinforced Polymer for Selected Piping Repairs at South Texas, Units 1 and 2
ML17005A1002017-01-18018 January 2017
January 4, 2017, Summary of Meeting to Discussion Stp'S Response to Request for Additional Information the Revised Aluminum Bronze Selective Leaching Aging Management Program for All Potentially Susceptible Welds Throughout the Facility
ML16279A3312016-10-27027 October 2016
Summary of Public Meeting with STP Nuclear Operating Company Regarding Open Items, Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2 (CAC Nos. MF2400-MF2409)
ML16272A4362016-10-14014 October 2016
Summary of Public Preapplication Meeting with STP Nuclear Operating Company to Discuss Possible License Amendment Request to Modify Emergency Response Organization for South Texas Project, Units 1 and 2
ML16246A0222016-10-0505 October 2016
Summary of Public Meeting with STP Nuclear Operating Company Regarding Open Items Related to Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2 (CAC Nos. MF2400 - MF2409)
ML16238A5272016-09-0101 September 2016
Summary of 7/28/16, Public Meeting with STP Nuclear Operating Company to Discuss the License Amendment and Exemption Requests to Use a Risk-Informed Approach to the Resolution of GSI-191 (CAC Nos. MF2400 - MF2409)
ML16218A3672016-08-30030 August 2016
07/21/2016 Summary of Public Teleconference Meeting with STP Nuclear Operating Company Discussing Revisions to License Renewal Application Aluminum Bronze Selective Leaching Aging Management Program and Background Document
ML16236A0322016-08-23023 August 2016
08/18/2016 Summary of Conference Call With STP Nuclear Operating Company Concerning the Aluminum Bronze Selective Leaching Aging Management Program in the South Texas Project, License Renewal Application
ML16236A3042016-08-23023 August 2016
08/11/2016 Summary of Conference Call Between NRC and STP Nuclear Operating Company Concerning the 2016 Annual Update to the South Texas Project License Renewal Application
ML16180A0142016-07-25025 July 2016
Summary of Meeting Discussion Between South Texas Project, Units 1 and 2, and NRC Staff Regarding the Revised Aluminum Bronze Selective Leaching Aging Management Program for All Potentially Susceptible Welds Throughout the Facility
ML16190A0082016-07-13013 July 2016
Summary of 6/22/2016 Public Meeting with STP Nuclear Operating Company Regarding Open Items, Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2 (CAC Nos. MF2400-MF2409)
ML16188A0072016-07-0707 July 2016
Summary of Telecon Held on July 5, 2016 With STP Nuclear Operating Company, Concerning Additional Information Pertaining to the STP, License Renewal Application (TAC. Nos. ME4936, ME4937)
ML16188A0112016-07-0707 July 2016
Summary of Telecon Held on July 5, 2016 With STP Nuclear Operating Company, Concerning Additional Information Pertaining to the STP, License Renewal Application (TAC Nos. ME4936, ME4937)
ML16188A0092016-07-0707 July 2016
Summary of Telecon Held on July 5, 2016 with STP Nuclear Operating Company, Concerning Additional Information Pertaining to the STP, License Renewal Application (Tac. Nos. ME4936, ME4937) - Enclosure 1
ML16175A1082016-06-24024 June 2016
Summary of 4/21/2016 Public Meeting with STP Nuclear Operating Company Regarding Open Items, Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2
ML16166A0272016-06-14014 June 2016
Summary of Telephone Conference Call Held on 06/08/2016, Between the USNRC and STP Nuclear Operating Company Response to Request for Additional Information B2.1.18-6 Pertaining to the South Texas Project License Renewal Application
ML16092A0852016-04-13013 April 2016
3/17/2016 Summary of Public Meeting with STP Nuclear Operating Company Regarding Open Items, Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2 (CAC Nos. MF2401-MF2409)
ML16092A0442016-04-11011 April 2016
Summary of 3/3/2016 Public Meeting with STP Nuclear Operating Company Regarding Open Items, Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2 (CAC Nos. MF2400-MF2409)
ML16088A2432016-04-0101 April 2016
2/18/2016, Summary of Public Meeting with STP Nuclear Operating Company Regarding Open Items, Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2 (CAC Nos. MF2400-MF2409)
ML16081A2052016-03-24024 March 2016
Summary of Meeting with STP Nuclear Operating Company to Discuss Potential License Amendment Request for South Texas Project, Unit 1 Regarding Permanent Operation with 56 Control Rods
ML16074A0412016-03-14014 March 2016
Summary of a Call Held on March 10, 2016, between USNRC and STPNOC, Concerning the Staff's Upcoming Audit Regarding the Amp for the Loss Of Material Due to Selective of Al-Br Welds in the ECW System for the STP LRA (TAC Nos. ME4936 And ME4937)
ML16060A1272016-03-0707 March 2016
February 23, 2016, Summary of Conference Calls Held between NRC and STP Concerning Staff's Review of Submerged Closure Bolting Portion of 2014 Annual Update for STP License Renewal Application (TAC ME4936 And ME4937)
ML16028A1522016-02-18018 February 2016
1/14/2016 Summary of Public Meeting with STP Nuclear Operating Company Regarding Modifications to the Licensee'S Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2
ML16035A4802016-02-12012 February 2016
Jsc Meeting Summary Attachment
ML16011A0612016-02-0202 February 2016
Summary of 10/1/15 Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas Project, Units 1 and 2 (CAC MF
ML16011A0702016-01-28028 January 2016
Summary of Preapplication Meeting with STP Nuclear Operating Company to Discuss Exigent License Amendment Request to Operate Following Removal of a D6 Control Rod at South Texas Project, Unit 1
ML16033A0072016-01-19019 January 2016
January 19, 2016, Summary of Public Meeting with STP to Discuss the Plant-Specific Aging Management Program, Selective Leaching of Aluminum Bronze, Associated with STP's License Renewal Application
ML16013A0662016-01-14014 January 2016
Summary of 11/9 and 12/30/15 Conference Calls with STP Nuclear Operating Company to Discuss the Fall 2015 Steam Generator Tube Inspection Activities (CAC No. A11018)
ML15308A0112015-11-30030 November 2015
Record of Conference Call on STP Request for Additional Information Set 34
ML15201A0032015-07-30030 July 2015
7/2/15 Summary of Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Units 1 and 2
ML15177A1042015-07-21021 July 2015
4/22/2015 Summary of Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Units 1 and 2 (TAC MF2400 t
ML15177A2742015-07-21021 July 2015
5/6/2015 Summary of Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Units 1 and 2 (TAC Nos. MF24
ML15180A2732015-07-15015 July 2015
6/3/2015 Summary of Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Units 1 and 2 (TAC MF2400 to
ML15139A3442015-06-11011 June 2015
Summary of Telephone Conference Call Held on May 12, 2015 Between the U.S. Nuclear Regulatory Commission and STP Nuclear Operating Company, Concerning Request for Additional Information, Set 31, Pertaining to the South Texas Project, Licens
ML15103A0022015-05-13013 May 2015
Summary of 4/8/15 Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Units 1 and 2
ML15084A0032015-04-0606 April 2015
2/4/15 Summary of Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Units 1 and 2 (TAC MF2400-MF24
ML15084A0042015-04-0101 April 2015
2/5/2015 Summary of Presubmittal Meeting with STP Nuclear Operating Company to Discuss Integrated Leak Rate Testing Program License Amendment Request for South Texas, Units 1 and 2
ML15020A1062015-02-19019 February 2015
12/1-3/2014 Summary of Meeting with STP Nuclear Operating Company to Discuss Revised Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 at South Texas, Unit 1 and 2 (TAC MF2400-
2022-09-12
[Table view] |
Text
LICENSEE: STP Nuclear Operating Company FACILITY: South Texas Project, Unit 1
SUBJECT:
SUMMARY
OF MARCH 2, 2016, PUBLIC MEETING WITH STP NUCLEAR OPERATING COMPANY TO DISCUSS A PROPOSED LICENSE AMENDMENT TO OPERATE SOUTH TEXAS PROJECT, UNIT 1, PERMANENTLY WITH 56 CONTROL RODS (CAC NO. MF7361)
On March 2, 2016, a Category 1 pre-application public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of STP Nuclear Operating Company (STPNOC, the licensee), at NRC Headquarters, in Rockville, Maryland. The purpose of the meeting was for STPNOC staff to provide information on a proposed license amendment request (LAR) to modify technical specifications (TS) for Unit 1 of the South Texas Project (STP) to allow permanent operation following removal of a single unreliable control rod. The meeting notice and agenda, dated February 18, 2016, are located in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML16050A010. The licensee's handouts from the meeting are available in ADAMS at Accession No. ML16062A304.
A list of meeting attendees is provided in the Enclosure to this meeting summary.
In its presentation, STPNOC staff provided information on the control rod configuration and the background of the issue: the physical configuration changes to support long-term operation, the impact on design basis accident safety analyses, and the proposed schedule. STPNOC staff provided an overview of the license amendment and the proposed change to the Unit 1 TS 5.3.2, "Control Rod Assemblies," to recognize 56 control rods.
The licensee stated that the consequences and uncertainty associated with replacing the control rod are significant since the process would require special tooling and processes not currently in existence, and penetration of the primary reactor coolant system pressure boundary.
The NRC staff asked if the cause of the rod control sequencing failure that was blamed for the damage to control rod D-6 was identified. The NRC staff requested that this be addressed in the submittal as well as how any future failure of this nature will be prevented including mitigative measures. Specifically, the NRC staff asked the licensee to address if and how the rapid refueling procedures would be modified.
During the presentation on physical configuration changes to support future operation (page 13 of the handout), the NRC staff requested STPNOC to address the long-term operational effects on and around the existing guide tube flow restrictor. These effects may include material degradation, loosening, and clogging. Also, the licensee should address how these effects will be monitored, tracked, and mitigated by inspection. maintenance, and analysis. STPNOC stated that the flow restrictor will remain in place, but the thimbie plug will be removed to reduce radiological impacts during refueling operations.
STPNOC proposed to use the Reload Safety Analysis Checklist (RSAC) in accordance with the Westinghouse Electric Company LLC procedure WCAP-9272-PA, "Westinghouse Reload Safety Evaluation Methodology," as the basis for long-term operation with 56 control rods. The RSAC was the basis for the Unit 1 Amendment No. 208 issued on December 11, 2015 (ADAMS Accession No. ML15343A128), allowing one-cycle of operation with 56 control rods.
The NRC staff questioned the licensee's use of the RSAC for longer-term operation for several reasons including that the amendment is not asking for a single fuel reload as the RSAC was intended and that the removal of a control rod permanently is a design change. Therefore, STPNOC's use of the RSAC baseline analyses using a 57-rod reference core appears inaccurate. Further, the NRC staff stated that the NRC safety evaluation for WCAP-9272 stipulates that significant plant system changes are outside the scope of applicability for approval of WCAP-9272. The staff considers the permanent changes proposed in the LAR to be significant and first-of-a-kind design modifications. The NRC staff specified that these concerns need to be addressed in detail in the submittal if STPNOC chooses to use the RSAC as a basis for the amendment. STPNOC instead should consider the Updated Final Safety Analysis Report (UFSAR) Chapter 15 design basis accident analyses that could be challenged by the configuration change and conducting a new bounding analysis.
STPNOC responded that the key safety parameters assumed in the UFSAR design basis accident safety analyses would not be challenged (i.e., shutdown margin, boron worth, rod worth, trip reactivity and most positive moderator density coefficient) for the core with 56 control rods. The licensee went on to state that the bounding accident analyses in the UFSAR do not assume a number or configuration of control rods in the core. STPNOC staff indicated that these assumptions would be discussed in detail in the submittal.
STPNOC stated it would again provide in the submittal, a table with impacts to design basis accident analysis. The licensee's proposed schedule included submitting the LAR on March 17, 2016 (this was subsequently moved to March 31), with an NRC decision by March 2, 2017. The licensee cannot restart Unit 1 without NRC action.
The NRC staff stated that the schedule is extremely challenging and that an audit could improve efficiency. The STPNOC staff stated that they would support audits as needed. The NRC requested that the licensee consider contingencies if the staff cannot approve the amendment in the requested timeframe or if it is denied.
In summary, the NRC staff stated that the licensee must address the staff's concerns concerning the validity of the RSAC as the basis for the LAR, degradation mechanisms and inspections of the flow restrictor, and regulatory controls associated with the failure mechanism causing damage to control rod D-6.
No public comments were received and no Public Meeting Feedback Forms were received.
Please direct any inquiries to me at 301-415-1906, or lisa.regner@nrc.gov.
I Sincerely, :/
I
~***
Lisa M. Regner, Senior Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-498
Enclosure:
List of Attendees cc w/encl: Distribution via Listserv
LIST OF ATTENDEES MARCH 2. 2016. MEETING WITH STP NUCLEAR OPERATING COMPANY REGARDING PROPOSED EMERGENCY AMENDMENT SOUTH TEXAS PROJECT, UNIT 1 DOCKET NO. 50-498 NAME ORGANIZATION Lisa Regner U.S. Nuclear Regulatory Commission (NRC)
Robert Taylor NRC Robert Pascarelli NRC Will MacFee NRC George Thomas NRC Ian Tseng NRC Matt Hamm NRC Mike King NRC John Klos NRC Tim Lupold NRC Matthew Hardgrove NRC Josh Borromeo NRC Jim Hickey NRC Mike Murray STP Nuclear Operating Company (STPNOC)
Wendy Brost STPNOC Roland Dunn STPNOC Michael Berg STPNOC Joe Rocha STPNOC Duane Gore STPNOC Charles Albury STPNOC Ron Holloway Wolf Creek Nuclear Operating Company Brian Krystek Engineering Planning and Management, Inc.
Tim Sande ENERCON Enclosure
ML16081A205 *via email OFFICE NRR/DORL/LPL4-1 /PM NRR/DORL/LPL4-1 /LA NRR/DE/EMCB/BC* NRR/DSS/SRXB/BC*
NAME LRegner JBurkhardt Yli EOesterle DATE 3/21/16 3/21/16 3/23/16 3/22/16 OFFICE NRR/DSS/SNPB/BC* NRR/DSS/STSB/BC* NRR/DORL/LPL4-1 /BC NRR/DORL/LPL4-1 /PM NAME JDean RElliott RPascarelli LRegner DATE 3/23/16 3/21/16 3/24/16 3/24/16
