Letter Sequence Meeting |
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TAC:MF2400, Control Room Habitability (Approved, Closed) TAC:MF2401, Control Room Habitability (Approved, Closed) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
Administration
- Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
Results
Other: ML13295A222, ML13323A183, ML13323A186, ML13323A189, ML13323A190, ML13323A191, ML13323B187, ML13323B188, ML13323B191, ML13323B194, ML13323B196, ML13323B198, ML13323B199, ML13323B200, ML13323B201, ML13323B202, ML13323B204, ML13323B207, ML13323B208, ML13323B209, ML13338A165, ML14015A312, ML14052A053, ML14072A076, ML14086A386, ML14086A387, ML14087A126, ML14149A089, ML14149A353, ML14149A354, ML14149A434, ML14149A435, ML14149A437, ML14178A481, ML14178A485, ML14202A045, ML14321A438, ML14321A677, ML14344A545, ML14344A546, ML14344A547, ML14349A790, ML15072A092, ML15091A440, ML15119A326, ML15175A024, ML15183A007, ML15183A009, ML15246A126, ML15246A128... further results
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MONTHYEARML13323B1962012-06-12012 June 2012
Attachment 4: CHLE-008, Rev. 3, Debris Bed Preparation and Formation Test Results
Project stage: Other
ML13323B1942012-08-11011 August 2012
Attachment 3: CHLE-007, Rev. 3, Debris Bed Requirements and Preparation Procedures
Project stage: Other
NOC-AE-13003040, Attachment 1: CHLE-005, Rev. 1, Determination of the Initial Pool Chemistry for the Chle Test.2012-08-13013 August 2012
Attachment 1: CHLE-005, Rev. 1, Determination of the Initial Pool Chemistry for the Chle Test.
Project stage: Other
ML13323B1882012-08-13013 August 2012
Attachment 1: CHLE-005, Rev. 1, Determination of the Initial Pool Chemistry for the Chle Test
Project stage: Other
ML13323B1912012-08-14014 August 2012
Attachment 2: CHLE-006, Rev. 1, STP Material Calculations
Project stage: Other
ML13323B1982012-08-19019 August 2012
Attachment 5: CHLE-010, Rev. 2, Chle Tank Test Results for Blended and NEI Fiber Beds with Aluminum Addition
Project stage: Other
ML13323B1992013-01-0909 January 2013
Attachment 6: CHLE-012, Rev. 3, T1 Mbloca Test Report, Cover Through Figure 52
Project stage: Other
ML13323B2002013-01-0909 January 2013
Attachment 6: CHLE-012, Rev. 3, T1 Mbloca Test Report, Figure 53 Through End
Project stage: Other
ML13323B2022013-01-15015 January 2013
Attachment 8: CHLE-015, Rev. 3, Summary of Chemical Effects Testing in 2012 for STP GSI-191 License Submittal
Project stage: Other
ML13323B2012013-01-22022 January 2013
Attachment 7: CHLE-014, Rev. 2, T2 LBLOCA Test Report
Project stage: Other
ML13323B2042013-01-22022 January 2013
Attachment 9: CHLE-016, Rev. 2, Calculated Material Release to Estimate Chemical Effects
Project stage: Other
ML13043A0132013-01-31031 January 2013
Pilot Submittal and Request for Exemption for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191
Project stage: Request
ML13214A0312013-08-13013 August 2013
Acceptance Review, Exemption Requests and License Amendment Request to Revise UFSAR for Resolution of Generic Safety Issue 191, Assessment of Debris Accumulation on PWR Sump Performance (TAC MF0613-MF0614; MF2400-09)
Project stage: Acceptance Review
ML13323B2072013-09-16016 September 2013
Attachment 10: CHLE-018, Rev. 2, Results of Bench Tests to Assess Corrosion of Aluminum in STP Containment Conditions
Project stage: Other
ML13323B2082013-09-23023 September 2013
Attachment 11: CHLE-019, Rev. 2, Test Results for Chemical Effect Tests Stimulating Corrosion and Precipitation (T3 & T4)
Project stage: Other
NOC-AE-13003039, Corrections to Information Provided in Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)2013-10-0303 October 2013
Corrections to Information Provided in Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)
Project stage: Other
ML13295A2222013-10-0303 October 2013
Corrections to Information Provided in Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)
Project stage: Other
ML13323B2092013-10-0404 October 2013
Attachment 12: CHLE-020, Rev. 2, Test Results for a 10-day Chemical Effects Test Simulating LBLOCA Conditions (T5)
Project stage: Other
ML13323A1892013-10-22022 October 2013
Enclosure 4-2 - Risk-Informed Closure of GSI-191, Volume 2 Probabilistic Risk Analysis
Project stage: Other
ML13323B1872013-10-31031 October 2013
Submittal of GSI-191 Chemical Effects Test Reports
Project stage: Other
ML13323A1912013-11-0606 November 2013
Enclosure 4-3 Risk-Informed Closure of GSI-191, Volume 3, Engineering (Casa Grande) Analysis, Page 212 of 1-122
Project stage: Other
ML13323A1902013-11-0606 November 2013
Enclosure 4-3 Risk-Informed Closure of GSI-191, Volume 3, Engineering (Casa Grande) Analysis, Cover - Page 211 of 248
Project stage: Other
ML13323A1862013-11-12012 November 2013
Enclosure 4-1 - Risk-Informed Closure of GSI-191, Volume 1
Project stage: Other
NOC-AE-13003043, Enclosure 5 - Response to NRC Supplemental Information Items2013-11-13013 November 2013
Enclosure 5 - Response to NRC Supplemental Information Items
Project stage: Supplement
ML13323A1922013-11-13013 November 2013
Enclosure 5 - Response to NRC Supplemental Information Items
Project stage: Supplement
ML13316B9052013-11-13013 November 2013
Albrz Testing Update for NRR Final
Project stage: Request
ML13323A1832013-11-13013 November 2013
To Revised STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191
Project stage: Other
ML13338A1652013-11-21021 November 2013
To Revised STP Pilot Submittal for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191 to Supersede and Replace the Revised Pilot Submittal
Project stage: Other
NOC-AE-13003054, Supplement 1 to Revised STP Pilot Submittal for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191 to Supersede and Replace the Revised Pilot Submittal2013-11-21021 November 2013
Supplement 1 to Revised STP Pilot Submittal for a Risk-Informed Approach to Resolving Generic Safety Issue (GSI)-191 to Supersede and Replace the Revised Pilot Submittal
Project stage: Supplement
ML13330B2222013-12-0505 December 2013
Notice 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 Project, Units 1 and 2 (TAC MF2400-MF24
Project stage: Meeting
NOC-AE-13003065, Response to STP-GSI-191-EMCB-RAI-12013-12-23023 December 2013
Response to STP-GSI-191-EMCB-RAI-1
Project stage: Other
ML14015A3112013-12-23023 December 2013
Response to NRC Request for Reference Document for STP Risk-Informed GSI-191 Application
Project stage: Request
05000498/LER-2013-003, Regarding Unanalyzed Condition - Direct Current Ammeter Circuits Without Overcurrent Protection2013-12-23023 December 2013
Regarding Unanalyzed Condition - Direct Current Ammeter Circuits Without Overcurrent Protection
Project stage: Request
ML14015A3122013-12-23023 December 2013
Response to STP-GSI-191-EMCB-RAI-1
Project stage: Other
NOC-AE-13003070, Response to NRC Request for Reference Document for STP Risk-Informed GSI-191 Application2013-12-23023 December 2013
Response to NRC Request for Reference Document for STP Risk-Informed GSI-191 Application
Project stage: Request
ML13357A2662013-12-24024 December 2013
1/8/14 - Notice of Meeting with STP Nuclear Operating Co. 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
Project stage: Meeting
ML14009A3072014-01-0909 January 2014
NRR E-mail Capture - Request for Additional Information - TACs MF2400 Through MF2409
Project stage: RAI
NOC-AE-13003057, Response to Request for Additional Information Re Use of RELAP5 in Analyses for Risk-Informed GSI-191 Licensing Application2014-01-0909 January 2014
Response to Request for Additional Information Re Use of RELAP5 in Analyses for Risk-Informed GSI-191 Licensing Application
Project stage: Response to RAI
ML14029A5332014-01-0909 January 2014
Response to Request for Additional Information Re Use of RELAP5 in Analyses for Risk-Informed GSI-191 Licensing Application
Project stage: Response to RAI
ML14015A0452014-01-14014 January 2014
NRR E-mail Capture - RAIs Regarding South Texas Projects Submittal for Risk-Informed Resolution of GS-191
Project stage: RAI
ML13358A0622014-01-14014 January 2014
Summary of 12/16/13 Meeting with STP Nuclear Operating Co. 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
Project stage: Meeting
ML14052A0542014-02-13013 February 2014
STP-Specific Casa Grande Inputs CASA01 JT4, CASA09 JT4, CASA22 JT4, CASA26 JT4, & CASA43 JT4
Project stage: Request
ML14052A0532014-02-13013 February 2014
Submittal of Casa Grande Code & Analyses for Risk-Informed GSI-191 Licensing Application
Project stage: Other
ML14149A4352014-02-14014 February 2014
ALION-REP-STP-8998-02, Rev. 0, STP Casa Grande Analysis and LAR Enclosure 4-3 RAI Response, Enclosure 1 to Attachment 1
Project stage: Other
ML14072A0842014-02-18018 February 2014
CHLE-012, T1 Mbloca Test Report, Revision 4
Project stage: Request
ML14072A0852014-02-22022 February 2014
CHLE-014, T2 LBLOCA Test Report, Revision 3
Project stage: Request
ML14072A0792014-02-22022 February 2014
CHLE-020, Test Results for 10-Day Chemical Effects Test Simulating LBLOCA Condition (T5), Revision 3
Project stage: Request
ML14072A0822014-02-23023 February 2014
CHLE-008, Debris Bed Preparation & Formation Test Results, Revision 4
Project stage: Request
ML14072A0832014-02-24024 February 2014
CHLE-010, Chle Tank Test Results for Blended and NEI Fiber Beds with Aluminum Addition, Revision 3
Project stage: Request
ML14072A0762014-02-27027 February 2014
Submittal of GSI-191 Chemical Effects Test Reports
Project stage: Other
2013-11-21
[Table View] |
Text
LICENSEE:
FACILITY:
SUBJECT:
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 1, 2014 STP Nuclear Operating Company South Texas Project, Units 1 and 2
SUMMARY
OF MAY 22, 2014, CONFERENCE CALL PUBLIC MEETING WITH STP NUCLEAR OPERATING COMPANY TO DISCUSS THE LICENSE AMENDMENT TO USE A RISK-INFORMED APPROACH TO THE RESOLUTION OF GSI-191, "ASSESSMENT OF DEBRIS ACCUMULATION ON PWR SUMP PERFORMANCE" (TAC NOS. MF2400 AND MF2401)
On May 22, 2014, a public meeting was held via conference call between the U.S. Nuclear Regulatory Commission (NRC) and representatives of STP Nuclear Operating Company (STPNOC, the licensee), at NRC Headquarters, Rockville, Maryland. The meeting notice and agenda, dated May 15, 2014, are located in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML14135A501. The licensee's and NRC staff handouts from the meeting are available in ADAMS at Accession Nos. ML14149A089 and ML14149A001, respectively. A list of meeting attendees is provided in the Enclosure to this meeting summary.
The purpose of the meeting was for STPNOC to discuss procedures developed by STPNOC to perform the sensitivity analyses by varying the input parameters to Containment Accident Sequence Stochastic Analysis (CASA) Grande, including the results of the sensitivity analyses, that are related to its license amendment request (LAR) to use a risk-informed approach to the resolution of Generic Safety Issue (GSI)-191, "Assessment of Debris Accumulation on PWR
[Pressurized Water Reactor) Sump Performance," at South Texas Project, Unit 1 and 2 (STP).
The LAR was submitted on June 19, 2013 (ADAMS Accession No. ML131750250). STPNOC provided a supplement to the LAR by letter dated November 13, 2013 (ADAMS Accession No. ML13323A128), superseding the June 19, 2013, submittal in its entirety.
STPNOC's presentation was followed by the NRC staff presentation that described alternate methods used by the Southwest Research Institute (SWRI), in supporting the NRC staff with review of the application.
Meeting Summary The following key topics were discussed by STPNOC during the meeting:
Fundamental objectives of the sensitivity studies Discussion on results of the following sensitivity analyses:
Boron Fiber Limit Fiber Penetration - Lower Envelope Combined Head Loss Studies (Chemical and Conventional)
Discussion of "Counterintutive" Results Observed with Certain Input Parameters SWRI staff supporting the NRC staff with its review of the application also discussed the alternate methods used by SWRI to confirm the results of the licensee analyses.
Results of Discussion The licensee stated that it does not plan to submit the results of the sensitivity analyses formally for the NRC staff review. However, the results of the studies may potentially be used in the future for evaluation of emergent plant conditions described in the presentation and evaluation of future plant modifications. The NRC staff noted that it is still in its initial stages of review of the information provided and suggested that certain portions of the sensitivity analyses may need to be submitted on the docket. The NRC staff will notify the licensee via the Request for Additional Information process, if such a need arises.
The NRC staff expressed concern about the non-intuitive trends shown by some of the sensitivity studies and asked the licensee how it intends to address/
disposition them. The licensee indicated that all the non-intuitive trends are being tracked and evaluated and the licensee intends to document the disposition of these trends in the near future.
Action Items No action items were identified.
Please direct any inquiries to me at 301-415-3016, or balwant.singal@nrc.gov.
Docket Nos. 50-498 and 50-499
Enclosure:
List of Attendees cc w/encl: Distribution via Listserv Sincerely,
£~Do-T~,,_:~
Balwant K. Singal, Senior Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
LIST OF ATTENDEES MAY 22. 2014, MEETING WITH STP NUCLEAR OPERATING COMPANY REGARDING RISK-INFORMED APPROACH TO RESOLUTION OF GSI-191 NAME Mike Murray*
Wayne Harrison*
Steve Blossom*
Ernie Kee*
Bruce Letellier**
Don Wakefield**
Ronald W Holloway*
Maurice Dingier*
Roger Anreasen*
David Morton**
Jeremy Tejada**
Tim Sande*
Seyed A. Reihani**
Zahara Mohaghegh**
Victor Cusumano (Part Time)
C.J. Fong David Boirel Paul Klein Ervin Geiger John Stang*
Steve Laur*
Balwant K. Singal Dr. Osvaldo Pensado*
Dr. Stuart Sothoff*
Dr. Wesley Patrick*
Dr. Budhi Sagar*
Marioly Diaz Colon
- Partcipated via phone SOUTH TEXAS PROJECT, UNITS 1 AND 2 DOCKET NOS. 50-498 AND 50-499 TITLE ORGANIZATION Licensing Manager STP Nuclear Operating Company (STPNOC)
Licensing Manager STPNOC Project Manager STPNOC STPNOC Alion Science ABS Consulting Project Manager WCNOC WCNOC Ameren University of Texas University of Texas Enercon University of Illinois University of Illinois Branch Chief U.S. Nuclear Regulatory Commission (NRC)
Reliability and Risk Analyst NRC Foreign Assignee (IRSN)
NRC Senior Materials Engineer NRC Senior Engineer NRC Senior Project Manager NRC Senior Reliability and Risk Analyst NRC Senior Project Manager NRC Group Manager, Risk Analysis and Southwest Research Institute (SWRI),
Performance Assessment Represented NRC Principal Scientist SWRI Vice President, Geosciences and SWRI Engineering Division Consultant SWRI General Engineer NRC
- Represented STPNOC and Participated via phone Enclosure
ML14157A099 Sincerely, IRA/
Balwant K. Singal, Senior Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation TWertz, NRR SSmith, NRR/DSS/SSIB PKiein, NRR/DE/ESGB MYoder, NRR/DE/ESGB VCusumano, NRR/DSS/SSIB EGeiger, NRR/DSS/SSIB CFong, NRR/DRA/APLA JStang, NRR/DSS/SSIB DBoirel, NRR/DSS/SSIB MColon, NRR/DE/ESGB Slaur, NRR/DRA/APLA
- via email OFFICE NRR/DORL/LPL4-1/PM NRR/DORLILPL4/LA NRR/DSS/SSIB/BC NRR/DE/ESGB/BC NAME BSingal JBurkhardt VCusumano GKulesa (AJohnson for)
DATE 6/1/14 6/10/14 6/25/14 6/30/14 OFFICE NRR/DRA/APLAIBC NRR/DORLILPL4-1/BC NRR/DORL/LPL4-1/PM NAME HHamzehee MMarkley BSingal DATE 6/27/14 7/1/14 7/1/14
