Letter Sequence Meeting |
---|
TAC:MF2400, Control Room Habitability (Open) TAC:MF2401, Control Room Habitability (Open) TAC:MF2402, Control Room Habitability (Open) TAC:MF2403, Control Room Habitability (Open) TAC:MF2404, Control Room Habitability (Open) TAC:MF2405, Control Room Habitability (Open) TAC:MF2406, Control Room Habitability (Open) TAC:MF2407, Control Room Habitability (Open) TAC:MF2408, Control Room Habitability (Open) TAC:MF2409, Control Room Habitability (Open) |
Initiation
- 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: ML13323A186, ML13323A189, ML13323A190, ML13323A191, ML13323B187, ML13323B191, ML13323B194, ML13323B196, ML13323B198, ML13323B199, ML13323B200, ML13323B201, ML13323B202, ML13323B204, ML13323B207, ML13323B208, ML13323B209, ML14015A045, ML14052A053, ML14072A076, ML14086A386, ML14149A089, ML14149A434, ML14149A435, ML14178A481, ML14321A438, ML14321A677, ML14344A545, ML14344A546, ML14349A790, ML15119A326, ML15175A024, ML15183A007, ML15183A009, ML15246A128, ML15246A129, ML15265A601, ML16230A232, 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), NOC-AE-13003040, Attachment 1: CHLE-005, Rev. 1, Determination of the Initial Pool Chemistry for the Chle Test., NOC-AE-13003065, Response to STP-GSI-191-EMCB-RAI-1, NOC-AE-14003082, Alternate Source Term Dose Analysis: an Estimate of Risk Attributed to GSI-191, Attachment 3, NOC-AE-14003101, Enclosure 1 to Enclosure 6 Concerning Second Set of Responses to April 2014, Requests for Additional Information Regarding STP Risk-Informed GSI-191 Application, NOC-AE-14003103, University of Texas White Paper, Means of Aggregation and NUREG-1829: Geometric and Arithmetic Means, Rev. 3, Enclosure 2 to Attachment 1, NOC-AE-14003104, Revised Affidavit for Withholding for Casa Grande Analyses for Risk-Informed GSI-191 Licensing Application, NOC-AE-14003105, Third Set of Responses to April, 2014, Requests for Additional Information Regarding STP Risk-Informed GSI-191 Licensing Application, NOC-AE-14003106, Second Submittal of Casa Grande Source Code for Stp'S Risk-Informed GSI- 191 Licensing Application, NOC-AE-14003111, Submittal of Casa Grande Source Code for Stp'S Risk-Informed GSI-191 Licensing Application, NOC-AE-14003190, Attachment 2 to NOC-AE-14003190 - ALION-REP-STP-8998-14, Strainer Test Plan in Support of STP Pilot Risk-Informed GSI-191 Pilot Licensing Application, NOC-AE-15003220, Description of Revised Risk-Informed Methodology and Responses to Round 2 Requests for Additional Information Regarding STP Risk-Informed GSI-191 Licensing Application... further results
|
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 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 ML13323B2002013-01-0909 January 2013 Attachment 6: CHLE-012, Rev. 3, T1 Mbloca Test Report, Figure 53 Through End 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 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 ML13323B2042013-01-22022 January 2013 Attachment 9: CHLE-016, Rev. 2, Calculated Material Release to Estimate Chemical Effects. Project stage: Other ML13323B2012013-01-22022 January 2013 Attachment 7: CHLE-014, Rev. 2, T2 LBLOCA Test Report. Project stage: Other NOC-AE-13002954, Pilot Submittal and Request for Exemption for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-1912013-01-31031 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 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 Project, Units 1 & 2, Submittal of GSI-191 Chemical Effects Test Reports (TAC Nos. MF2400 and MF2401) 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 ML13323A1852013-11-13013 November 2013 Enclosure 3 - License Amendment Request for STP Piloted Risk-Informed Approach to Closure for GSI-191 Project stage: Request 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 ML13323A1832013-11-13013 November 2013 Project Units 1 and 2 - Supplement 1 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: Supplement 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-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 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 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 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 ML14009A3072014-01-0909 January 2014 NRR E-mail Capture - Request for Additional Information - TACs MF2400 Through MF2409 Project stage: RAI ML14015A0452014-01-14014 January 2014 NRR E-mail Capture - Rai'S Regarding South Texas Project'S Submittal for Risk-Informed Resolution of GS-191 Project stage: Other 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 ML14052A0532014-02-13013 February 2014 Project Units 1 & 2, Submittal of Casa Grande Code & Analyses for Risk-Informed GSI-191 Licensing Application Project stage: Other NOC-AE-14003081, STP-Specific Casa Grande Inputs CASA01 JT4, CASA09 JT4, CASA22 JT4, CASA26 JT4, & CASA43 JT42014-02-13013 February 2014 STP-Specific Casa Grande Inputs CASA01 JT4, CASA09 JT4, CASA22 JT4, CASA26 JT4, & CASA43 JT4 Project stage: Request ML14149A4352014-02-14014 February 2014 Project, Units 1 and 2 - 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 ML14072A0792014-02-22022 February 2014 CHLE-020, Test Results for 10-Day Chemical Effects Test Simulating LBLOCA Condition (T5), Revision 3 Project stage: Request ML14072A0852014-02-22022 February 2014 CHLE-014, T2 LBLOCA Test Report, 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 Project, Units 1 and 2, Submittal of GSI-191 Chemical Effects Test Reports (TAC Nos. MF2400 and MF2401) Project stage: Other ML14072A2112014-03-0606 March 2014 NRR E-mail Capture - STP Sensitivity Report and Presentation for Proposed Meeting Project stage: Request NOC-AE-14003082, Alternate Source Term Dose Analysis: an Estimate of Risk Attributed to GSI-191, Attachment 32014-03-11011 March 2014 Alternate Source Term Dose Analysis: an Estimate of Risk Attributed to GSI-191, Attachment 3 Project stage: Other ML14086A3862014-03-17017 March 2014 STP Risk-Informed GSI-191 Aadb RAI 3 Response, Attachment 2 Project stage: Other ML14086A3852014-03-17017 March 2014 Project, Units 1 & 2 - Response to NRC Accident Dose Branch Request for Additional Information Regarding STP Risk-Informed GSI-191 Application Project stage: Request NOC-AE-14003111, Submittal of Casa Grande Source Code for Stp'S Risk-Informed GSI-191 Licensing Application2014-03-18018 March 2014 Submittal of Casa Grande Source Code for Stp'S Risk-Informed GSI-191 Licensing Application Project stage: Other NOC-AE-14003114, Seismic Hazard and Screening Report (CEUS Sites), Response NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai..2014-03-31031 March 2014 Seismic Hazard and Screening Report (CEUS Sites), Response NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai.. Project stage: Request ML14091A4522014-04-0808 April 2014 Request for Withholding Information from Public Disclosure - 12/9/13 G. Powell, STPNOC Affidavit Enclosing RELAP5 Digital Media Related to GSI-191 License Amendment and Exemption Requests Project stage: Withholding Request Acceptance ML14087A0752014-04-15015 April 2014 Request for Additional Information, Request for Exemptions and Revised Pilot License Amendment Request for a Risk-Informed Approach to Resolve Generic Safety Issue (GSI)-191 Project stage: RAI 2013-12-05
[Table View] |
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 toML15180A273 |
Person / Time |
---|
Site: |
South Texas |
---|
Issue date: |
07/15/2015 |
---|
From: |
Regner L M Plant Licensing Branch IV |
---|
To: |
|
---|
Watford M M |
References |
---|
TAC MF2400, TAC MF2401, TAC MF2402, TAC MF2403, TAC MF2404, TAC MF2405, TAC MF2406, TAC MF2407, TAC MF2408, TAC MF2409 |
Download: ML15180A273 (5) |
|
|
---|
Category:Meeting Summary
MONTHYEARML24120A2362024-05-0606 May 2024 Summary of March 25, 2024, Presubmittal Teleconference with STP Nuclear Operating Company to Discuss Changes to the Quality Assurance Plan for South Texas Project, Units 1 and 2 ML22252A0432022-09-12012 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 2024-05-06
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 15, 2015 LICENSEE: STP Nuclear Operating Company FACILITY: South Texas Project, Units 1 and 2
SUBJECT:
SUMMARY OF JUNE 3, 2015 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" (TAC NOS. MF2400, MF2401, MF2402, MF2403, MF2404, MF2405, MF2406, MF2407, MF2408, AND MF2409) On June 3, 2015, a 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, Rockville, Maryland. The meeting notice and agenda, dated February 13, 2015, are located in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML 15091A578. A list of meeting attendees is provided in the Enclosure to this meeting summary. By letter dated June 19, 2013 (ADAMS Accession No. ML 131750250), 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, and July 15, 2014; and March 1 O and March 25, 2015 (ADAMS Accession Nos. ML 13295A222, ML 13323A673, ML 13323A128, ML 13338A165, ML 14015A312, ML 14015A311, ML 14029A533, ML 14052A053, ML 14072A076, ML 14086A383, ML 14087A126, ML14149A353, ML14149A354, ML14149A434, ML14178A481, ML14202A045, ML15072A092, and ML 15091A440, respectively), STPNOC submitted exemption requests accompanied by a license amendment request (LAR) 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 licensee's upcoming submittal which the licensee stated it plans to submit in July 2015. The supplement is expected to provide information on the new Risk over Deterministic methodology, and modify the license amendment and exemption requests. Meeting Summary The NRC staff discussed the need for STPNOC to properly justify the approach used for jet directionality at piping end points, which is used to calculate debris generation in CASA Grande. The NRC staff stated that the implemented computational approaches should be properly described in the licensee's future submittals, specifically the pipe ends and special jet directionality approaches. The licensee indicated that the NRG-staff-observed random jet direction on pipe ends during confirmatory calculations was inadvertent, and that this issue was corrected with a change in the computer-assisted design files used as input to CASA Grande. The licensee stated it would provide an explanation to the adopted approach in the upcoming submittal. As a follow-up to the jet direction discussion, NRC staff reminded the licensee of the importance of providing accurate information, identifying and disclosing changes in methods of analysis from what was previously provided to the NRC, and the importance of providing a clear, well thought out response to questions. The NRC staff also discussed the need for STPNOC to address how changes due to debris loading in containment could affect the probabilistic risk analysis (PRA), including changes in risk, defense-in-depth, and safety margins. The NRC staff stated that the licensee needs to either justify that its current long-term monitoring and reporting program is sufficient, or explain its new method and how it will be sufficient in the upcoming submittals. In its March 25, 2015, response to the NRC staff request for additional information dated March 3, 2015 (ADAMS Accession No. ML 14357A171), the licensee indicated that a factor of five times the break diameter (denoted as 5D) to define the zone-of-influence (ZOI) for inorganic zinc coatings was used in the testing, and that this 5D factor will be relied upon for its methodology. The NRC staff pointed out that existing staff guidance, "Revised Guidance Regarding Coatings Zone of Influence for Review of Final Licensee Responses to Generic Letter 2004-02, 'Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors,"' dated April 6, 2010 (ADAMS Accession No. ML 100960495), calls for evaluation of inorganic zinc coatings debris generation assuming a 10D ZOI. The NRC staff stated the need for the licensee to address this difference and provide an analysis that accounts for the additional debris generated by the larger ZOI specified in NRC staff approved guidance, in its upcoming submittal. The licensee stated its awareness of the potential inconsistencies, and that it will be addressed in the upcoming submittals. The NRC staff and the licensee discussed the Updated Final Safety Analysis Report changes, and the licensee stated the changes will be included in the upcoming submittal. The NRC staff informed the licensee that if its current mass and energy release analysis for containment response is based on Westinghouse methodology in WCAP-10325-P-A, ""Westinghouse LOCA Mass and Energy Release Model for Containment Design March 1979 Version," May 1983 (proprietary), the licensee should consider using corrected codes reported in Westinghouse Nuclear Safety Advisory letters. The NRC staff then asked the licensee about the schedule for the upcoming submittals and if there is a need for another public meeting. The licensee proposed to submit in June of this year. After the public meeting, the NRC staff and the licensee agreed upon a July 2, 2015, public teleconference, which would push back the proposed submittal date to July 2015. The meeting notice for the upcoming July 2 meeting is located in ADAMS at Accession No. ML 15173A343. No Public Meeting Feedback Forms or public comments were received for this meeting. 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 S. I I * .. ; Lisa M. Regner, Senior Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation LIST OF ATTENDEES JUNE 3, 2015. CONFERENCE CALL WITH STP NUCLEAR OPERATING COMPANY REGARDING RISK-INFORMED APPROACH TO RESOLUTION OF GSl-191 NAME Margaret Watford John Stang Victor Cusumano Matt Yoder Paul Klein Jerry Dozier CJ Fong Ahsan Sallman Steve Smith Balwant Singal Marioly Diaz Colon Steve Laur Lindsay Robinson Caroline Tilton Osvaldo Pensado Mike Murray Steve Blossom Rob Engen Ernie Kee Wayne Harrison Linda Dyer Bruce Letellier 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 NRC NRC NRC Southwest Research Institute (contractor for NRC) STP Nuclear Operating Company (STPNOC) STPNOC STPNOC STPNOC STPNOC STPNOC Ali on Enercon Enclosure
ML 15180A273 *per email OFFICE NRR/DORL/LPL4-1 /PM NRR/DORL/LPL4-1/LA NRR/DSS/SSIB/BC NRR/DSS/STSB/BC NAME LRegner (MWatford for) JBurkhardt VCusumano RElliott DATE 7/1 /15 6/30/15 7/8/15 7/8/15 OFFICE NRR/DRA/APLA/BC NRR/DE/ESGB/BC NRR/DORL/LPL4-1 /BC NRR/DORL/LPL4-1 /PM NAME SRosenberg GKulesa MMarkley (Flyon for) LRegner DATE 7/8/15 7/10/15 7/15/15 7/15/15