Letter Sequence Meeting |
|---|
CAC:MF2400, Control Room Habitability (Approved, Closed) CAC:MF2401, Control Room Habitability (Approved, Closed) CAC:MF2402, Control Room Habitability (Approved, Closed) CAC:MF2403, Control Room Habitability (Approved, Closed) CAC:MF2404, Control Room Habitability (Approved, Closed) CAC:MF2405, Control Room Habitability (Approved, Closed) CAC:MF2406, Control Room Habitability (Approved, Closed) CAC:MF2407, Control Room Habitability (Approved, Closed) CAC:MF2408, Control Room Habitability (Approved, Closed) CAC:MF2409, Control Room Habitability (Approved, Closed) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance...
Administration
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
|
MONTHYEARML15274A5992015-10-0101 October 2015
10-01-15 Public Phone Call
Project stage: Request
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
Project stage: Meeting
ML16028A1522016-02-18018 February 2016
1/14/2016 Summary of Public Meeting with STP Nuclear Operating Company Regarding Modifications to the Licensees Risk-Informed Generic Safety Issue (GSI) 191 Application and Supplements for South Texas Project, Units 1 and 2
Project stage: Meeting
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)
Project stage: Meeting
ML16082A5072016-04-11011 April 2016
Request for Additional Information, Phased Response Requested, Exemption and License Amendment Request for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 (CAC Nos. MF2400-MF2409)
Project stage: RAI
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)
Project stage: Meeting
ML16095A0102016-04-13013 April 2016
Summary of November 17-19, 2015 Thermal-Hydraulic Review at Texas A&M University; Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 (CAC MF2400-MF2409)
Project stage: Other
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)
Project stage: Meeting
ML16096A0652016-04-13013 April 2016
Summary of February 4 and 16, 2016, Regulatory Audit at Westinghouse in Rockville, MD, Boric Acid Precipitation, Exemption and License Amendment Request, Risk-Informed Approach to Resolve Generic Safety Issue 191
Project stage: Other
ML16111A0272016-04-18018 April 2016
STP Nuclear Operating Company Slideshow for Public Meeting on April 21, 2016 for GSI-191 Resolution (CAC No. MF2400-01)
Project stage: Meeting
ML16032A4032016-04-26026 April 2016
FRN, Draft Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400-MF2409)
Project stage: Draft Other
ML16103A3442016-04-26026 April 2016
Summary of February 24-26, 2016 Audit, Debris Transport Review at Alion Science and Technology Corporation, Albuquerque, Nm; Pilot Submittal and Exemption Request, Risk-Informed Approach to Resolve GSI 191
Project stage: Other
ML16032A3872016-04-26026 April 2016
Draft Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400-MF2409)
Project stage: Draft Other
ML16127A4002016-05-11011 May 2016
Audit Summary, Thermal-Hydraulic Review on February 23-25, 2016 at Texas A&M University; Pilot Submittal and Request for Exemptions for a Risk-Informed Approach to Resolve Generic Safety Issue 191 (CAC MF2400-MF2409)
Project stage: Other
ML16125A2902016-05-26026 May 2016
Request for Additional Information, Risk Review, Exemption and License Amendment Request for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 (CAC Nos. MF2400-MF2409)
Project stage: RAI
ML16141B0812016-05-31031 May 2016
Audit Summary, Risk Audit on April 12-13, 2016, at Alumni Center at the University of Texas, Austin, Tx; Pilot Generic Safety Issue 191 Submittal and Exemption Request, and Draft Request for Additional Information
Project stage: Draft RAI
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
Project stage: Meeting
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)
Project stage: Meeting
ML16200A4172016-07-18018 July 2016
Single Positive Test Form Collected on 08/25/2015
Project stage: Request
ML16194A2342016-07-21021 July 2016
Request for Withholding Information from Public Disclosure - 5/6/16 Affidavit Executed by D. Munoz and M. Rozboril, Alion Science and Technology, Response to Follow-up RAIs 18, 38, and 44
Project stage: RAI
ML16242A0102016-08-23023 August 2016
NRR E-mail Capture - (External_Sender) FW: South Texas Project GSI-191 Draft Risk Responses to Questions for Public Meeting on August 29, 2016
Project stage: Request
ML16242A0092016-08-25025 August 2016
NRR E-mail Capture - (External_Sender) South Texas Project GSI-191 Draft thermal-hydraulic Responses to Questions for Public Meeting on August 29, 2016
Project stage: Request
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)
Project stage: Meeting
ML16258A3672016-09-0606 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution SNPB-3-2, Bullet 4 16 -inch Bounding Break Clarification for September 14, 2016 Public Meeting
Project stage: Request
ML16258A1042016-09-12012 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution RAI SNPB-3-13 Clarification for September 14, 2016 Public Meeting
Project stage: Request
ML16258A1002016-09-12012 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution RAI APLA-3-2 Clarification for September 14, 2016 Public Meeting
Project stage: Request
ML16258A0982016-09-13013 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution RAI 33 Clarification for September 14, 2016 Public Meeting
Project stage: Request
ML16258A0962016-09-13013 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution RAI SSIB-3-4 Clarification for September 14, 2016 Public Meeting
Project stage: Request
ML16258A2072016-09-14014 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution RAI 37 Clarification for September 14, 2016 Public Meeting
Project stage: Request
ML16258A2082016-09-14014 September 2016
NRR E-mail Capture - (External_Sender) South Texas Project Generic Safety Issue 191 Resolution RAI 34 Clarification for September 14, 2016 Public Meeting
Project stage: Request
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)
Project stage: Meeting
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)
Project stage: Meeting
ML16302A4532016-12-12012 December 2016
Closeout of Request for Additional Information Questions That Are No Longer Applicable, Resolution of Generic Safety Issue (GSI) 191 (CAC Nos. MF2400-MF2409)
Project stage: RAI
ML16351A1502016-12-16016 December 2016
Correction Letter Closeout of Request for Information Questions That Are No Longer Applicable Associated with the Resolution of Generic Safety Issue 191 (CAC Nos. MF2400 - MF2409)
Project stage: RAI
ML16278A5982017-05-0202 May 2017
Letter, Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400 to MF2409)
Project stage: Other
ML16278A5992017-05-0202 May 2017
Environmental Assessment and Finding of No Significant Impact, Revise Licensing Basis as Documented in the UFSAR and Request for Exemptions, Risk-Informed Approach to Address GSI-191 (CAC MF2400 to MF2409)
Project stage: Other
ML17137A3252017-05-17017 May 2017
Safety Evaluation of LAR by South Texas Project Nuclear Operating Company to Adopt a Risk-Informed Resolution of Generic Safety Issue-191
Project stage: Approval
ML17132A1702017-05-17017 May 2017
Report of Individual Monitoring
Project stage: Request
ML17151A8432017-06-16016 June 2017
OEDO-17-00326 - EDO Response to ACRS Chairman, Safety Evaluation of License Amendment Request by STP Nuclear Operating Company to Adopt a Risk-Informed Resolution of Generic Safety Issue-191
Project stage: Approval
ML17037C8762017-07-11011 July 2017
FRN: Exemption from the Requirements of 10 CFR 50.46 and 10 CFR Part 50, Appendix a, General Design Criteria 35, 38, 41 (CAC Nos. MF2402-MF2409)
Project stage: Approval
ML17037C8712017-07-11011 July 2017
Letter, Exemption from the Requirements of 10 CFR Part 50, Section 50.46 (CAC Nos. MF2402-MF2409)
Project stage: Approval
NRC-2016-0092, South Texas Project, Units 1 and 2 - FRN: Exemption from the Requirements of 10 CFR 50.46 and 10 CFR Part 50, Appendix a, General Design Criteria 35, 38, 41 (CAC Nos. MF2402-MF2409)2017-07-11011 July 2017
South Texas Project, Units 1 and 2 - FRN: Exemption from the Requirements of 10 CFR 50.46 and 10 CFR Part 50, Appendix a, General Design Criteria 35, 38, 41 (CAC Nos. MF2402-MF2409)
Project stage: Approval
ML17019A0022017-07-11011 July 2017
Safety Evaluation, Enclosure 3 to Amendment Nos. 212 and 198 - Risk-Informed Approach to Resolve Generic Safety Issue 191
Project stage: Approval
ML17038A2232017-07-11011 July 2017
Issuance of Amendment Nos. 212 and 198 - Risk-Informed Approach to Resolve Generic Safety Issue 191
Project stage: Approval
ML17019A0032017-07-11011 July 2017
Attachment 2 to Safety Evaluation - In-Vessel Thermal-Hydraulic Analysis, Issuance of Amendment Nos. 212 and 198 - Risk-Informed Approach to Resolve Generic Safety Issue 191
Project stage: Approval
ML17055A5002017-07-11011 July 2017
Enclosure 4 to Amendment Nos. 212 and 198, Resolution of Licensee Comments on Safety Evaluation - Risk-Informed Approach to Resolve Generic Safety Issue 191
Project stage: Approval
2016-05-31
[Table View] |
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)| ML16092A044 |
| Person / Time |
|---|
| Site: |
South Texas  |
|---|
| Issue date: |
04/11/2016 |
|---|
| From: |
Lisa Regner
Plant Licensing Branch IV |
|---|
| To: |
South Texas |
|---|
| Regner L |
| References |
|---|
| CAC MF2400, CAC MF2401, CAC MF2402, CAC MF2403, CAC MF2404, CAC MF2405, CAC MF2406, CAC MF2407, CAC MF2408, CAC MF2409 |
| Download: ML16092A044 (5) |
|
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 11, 201 6 LICENSEE:
STP Nuclear Operating Company FACILITY:
South Texas Project, Units 1 and 2
SUBJECT:
SUMMARY
OF MARCH 3, 2016, 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 GENERIC SAFETY ISSUE 191, "ASSESSMENT OF DEBRIS ACCUMULATION ON PWR SUMP PERFORMANCE" (CAC NOS. MF2400, MF2401, MF2402, MF2403, MF2404, MF2405, MF2406, MF2407, MF2408, AND MF2409)
On March 3, 2016, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRG) and representatives of STP Nuclear Operating Company (STPNOC, the licensee), at NRG Headquarters, Rockville, Maryland. The meeting notice and agenda, dated February 18, 2016, are located in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML16050A006. A list of meeting attendees is provided in the Enclosure to this meeting summary.
By letter dated June 19, 2013 (ADAMS Accession No. ML131750250), as supplemented by letters dated October 3, October 31, November 13, November 21 and December 23, 2013 (two letters); and January 9, February 13, February 27, March 17, March 18, May 15 (two letters),
May 22, June 25, July 15, 2014; and March 10, March 25, and August 20, 2015 (ADAMS Accession Nos. ML13295A222, ML13323A673, ML13323A128, ML13338A165, ML14015A312, ML14015A311, ML14029A533, ML14052A110, ML14072A075, ML14086A383, ML14087A126, ML14149A353, ML14149A354, ML14149A439, ML14178A467, ML14202A045, ML15072A092, ML15091A440, and ML15246A125, respectively), STPNOC submitted exemption requests accompanied by license amendment requests for a risk-informed approach to resolve Generic Safety Issue (GSl)-191, "Assessment of Debris Accumulation on PWR [Pressurized-Water Reactor] Sump Performance, at South Texas Project, Units 1 and 2 (STP).
The purpose of this public teleconference call was to discuss the NRG staff's remaining unresolved concerns associated with the licensee's August 20, 2015, document. This submittal provided information on STPNOC's revised methodology to resolve GSl-191 using a risk combined with a deterministic - 'Risk over Deterministic' or 'RoverD' - methodology. In particular, the staff discussed the outcomes of the thermal-hydraulic (T-H) and debris generation regulatory audits conducted in College Station, Texas, and Albequerque, New Mexico, respectively, during the week of February 22, 2016. Additionally, the NRG and STP staffs discussed the containment analysis impact due to Westinghouse Electric Company LLC (Westinghouse) errors, STPNOC's draft RAI [Request for Additional Information] Applicability Matrix, and the regulatory audit associated with probabilistic risk planned for April 2016.
The NRG staff discussed an option that STPNOC may exercise concerning shifting all hot-leg loop, large-break loss-of-coolant accident (LOCA) locations to a risk-informed methodology to simplify the analysis. The licensee noted that if this option were to be used, it would mean four additional locations on the hot-leg loop vessel nozzles would be moved from a deterministic analysis, to a risk-informed analysis. If the licensee exercised this option, only the hot-leg medium break, hot-leg small break, and cold-leg small break locations would need to demonstrate deterministic compliance per paragraph 50.46(b)(5) of Title 1 O of the Code of Federal Regulations. Further, the licensee discussed a T-H modeling assumption change involving allowing the core bypass to be open to allow flow in the axial direction during the long-term core cooling analysis. The assumption of allowing bypass flow was addressed in a Westinghouse guidance document, WCAP-17788, "Comprehensive Analysis and Test Program for GSl-191 Closure (PA-SEE-1090) - Cold Leg Break (CLB) Evaluation Method for GSl-191 Long-Term Cooling," which the NRG staff is currently reviewing.
The NRG staff requested that the licensee provide a clarification in its next submittal concerning steam line break assumptions in the risk analysis model. The August 20, 2015, submittal did not address the secondary system break assumptions, yet the submittal was stated to be a "stand-alone reference." Earlier STP submittals clearly stated the assumptions used in the analysis. This request was provided in a draft RAI by e-mail on March 22, 2016 (ADAMS Accession No. ML16082A484).
The NRG and STPNOC staffs discussed the licensee's draft RAI Applicability Matrix (ADAMS Accession No. ML 16091 AOOS). The NRG staff stated that there are questions on the scope of the review due to the methodology change from the original submittals in 2013. The RAI Applicability Matrix does not address this. The NRG staff stated that the licensee needs to provide assurance that the later submittal(s) do not disagree with earlier information, if it is not made clear that information is superseded.
The next public meetings will be held on March 17 and 31, 2016.
There were no public comments and no meeting feetback forms submitted.
If you have any questions, please contact me at 301-415-1906 or via e-mail at Lisa.Regner@nrc.gov.
Docket Nos. 50-498 and 50-499
Enclosure:
List of Attendees cc w/encl: Distribution via Listserv Sincerely, rnw~ ~r Lisa M. Regner, Senior Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
LIST OF ATTENDEES MARCH 3, 2016, CONFERENCE CALL WITH STP NUCLEAR OPERATING COMPANY REGARDING RISK-INFORMED APPROACH TO RESOLUTION OF GSl-191 NAME Lisa Regner Vic Cusumano Robert Pascarelli Josh Kaizer Reed Anzalone Steve Laur Andrea Russell Jeremy Dean C. J. Fong Matt Yoder Caroline Tilton Rob Engen Ernie Kee Wayne Harrison Steve Blossom Wes Schulz Drew Richards Bruce Letellier Megan Stachowiak Dominic Munoz Rodolfo Vaghetto Ron Holloway Brian Krystek Tim Sande SOUTH TEXAS PROJECT. UNITS 1 AND 2 DOCKET NOS. 50-498 AND 50-499 ORGANIZATION U.S. Nuclear Regulatory Commission (NRC)
NRC NRC NRC NRC NRC NRC NRC NRC NRC NRC STP Nuclear Operating Company (STPNOC)
STPNOC STPNOC STPNOC STPNOC STPNOC Alion Science & Technology Alien Science & Technology Alien Science & Technology Texas A&M Wolf Creek Nuclear Operating Company Engineering Planning and Management, Inc.
ENERCON Enclosure If you have any questions, please contact me at 301-415-1906 or via e-mail at Lisa. Regner@nrc.gov.
Sincerely, IRA MWatford for/
Lisa M. Regner, Senior Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-498 and 50-499
Enclosure:
List of Attendees cc w/encl: Distribution via Listserv DISTRIBUTION:
PUBLIC LPL4-1 r/f RidsACRS_MailCTR Resource RidsNrrDeEpnb Resource RidsNrrDeEsgb Resource RidsNrrDorllpl4-1 Resource RidsNrrDraApla Resource RidsNrrDssScvb Resource RidsNrrDssSnpb Resource RidsNrrDssSrxb Resource RidsNrrDssSsib Resource RidsNrrDssStsb Resource RidsNrrLAJBurkhardt Resource RidsNrrPMSouthTexas Resource RidsRgn4MailCenter Resource TClark, EDO RIV TWertz, NRR ARussell, NRR/DSS/SSIB SSmith, NRR/DSS/SSIB PKlein, NRR/DE/ESGB MYoder, NRR/DE/ESGB VCusumano, NRR/DSS/SSIB AGuzzetta, NRR/DSS/SRXB JDozier, NRR/DRA/ARCB CFong, NRR/DRA/APLA Slaur, NRR/DRA/APLA MBanks, ACRS KWest, NRR/DSS/STSB CTilton, NRR/DSS/STSB ASallman, NRR/DSS/SCVB JTsao, NRR/DE/EPNB LWard, NRR/DSS/SNPB MColon, NRR/DE/ESGB LRobinson, NRR/DSS/SSIB ADAMS A ccess1on N ML16092A044
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- per ema1 OFFICE N RR/DORL/LPL4-1 /PM NRR/DORL/LPL4-1/LA NRR/DRA/APLAITL NAME (MWatford for) LRegner JBurkhardt CJ Fong DATE 4/11/2016 3/31/2016 4/05/2016 OFFICE NRR/DSS/SNPB/BC N RR/DORL/LPL4-1 /BC NRR/DORL/LPL4-1/PM NAME JDean RPascarelli (MWatford for) LRegner DATE 4/06/2016 4/08/2016 4/11/2016 OFFICIAL RECORD COPY NRR/DSS/SSIB/BC VCusumano 4/05/2016