Letter Sequence Meeting |
|---|
TAC:MF2400, Control Room Habitability (Approved, Closed) TAC:MF2409, Control Room Habitability (Open) |
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
|
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
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
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
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
2013-11-21
[Table View] |
Text
1 NRR-PMDAPEm Resource From:
Harrison Albon [awharrison@STPEGS.COM]
Sent:
Friday, April 03, 2015 11:00 AM To:
Regner, Lisa Cc:
Stang, John; Blossom, Steven
Subject:
STP Agenda Items for 4/8 public call Attachments:
15003241 Cover Letter Supplement 2 LAR.pdf Follow Up Flag:
Follow up Flag Status:
Flagged Lisa, John, Proposed STP agenda items for our public call next Wednesday:
See attached talking points on June supplement content Clarification/dialog on strainer design question Staff reactions to responses to Round 2 RAIs o Note that we would plan to submit the BAP and SCVB-17 RAI responses in the June supplement Can we have a separate call to discuss schedule and logistics for upcoming audit? We would like to set a date and location (recommend Albuquerque).
- Regards, Wayne Harrison STP Licensing (979) 292-6413
Hearing Identifier:
NRR_PMDA Email Number:
1980 Mail Envelope Properties (8C918BCF8596FB49BD20A610FA5920CF022668F0)
Subject:
STP Agenda Items for 4/8 public call Sent Date:
4/3/2015 11:00:23 AM Received Date:
4/3/2015 11:00:23 AM From:
Harrison Albon Created By:
awharrison@STPEGS.COM Recipients:
"Stang, John" <John.Stang@nrc.gov>
Tracking Status: None "Blossom, Steven" <sdblossom@STPEGS.COM>
Tracking Status: None "Regner, Lisa" <Lisa.Regner@nrc.gov>
Tracking Status: None Post Office:
CEXMBX01.CORP.STPEGS.NET Files Size Date & Time MESSAGE 601 4/3/2015 11:00:23 AM 15003241 Cover Letter Supplement 2 LAR.pdf 290234 Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
Follow up
TALKING POINTS FOR DISCUSSION June 2015 NOC-AE-15003241 10CFR50.12 10CFR50.90 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 South Texas Project Units 1 and 2 Docket Nos. STN 50-498 and STN 50-499 Supplement 2 to STP Pilot Submittal and Requests for Exemptions and License Amendment for a Risk-Informed Approach to Address Generic Safety Issue (GSI)-191 and Respond to Generic Letter (GL) 2004-02 (TAC NOS. MF2400 - MF2409)
References:
- 1. Letter, G. T. Powell, STPNOC, to NRC Document Control Desk, 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, November 13, 2013, NOC-AE-15003241, ML13323A183
- 2. Letter, G. T. Powell, STPNOC, to NRC Document Control Desk, Description of Revised Risk-Informed Methodology and Responses to Round 2 Requests for Additional Information Regarding STP Risk-Informed GSI-191 Licensing Application, March XX, 2015, NOC-AE-15003220, MLXXXXXX This submittal supplements the STP Risk-Informed GSI-191 application (Reference 1) with the information from RAI responses and with the Risk over Deterministic (RoverD) methodology as the primary framework for the technical basis and a proposed change to the Technical Specifications. It contains sufficient information to be used as a stand-alone reference for the review of the STP licensing application and for closure of GL2004-02 for STP.
The requested licensing actions are for approval of a risk-informed approach for resolving GSI-191 for STP Units 1 and 2 as the pilot plants for other licensees pursuing a similar approach. The results of the reviews will also support closure of Generic Letter (GL) 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors," for STP Units 1 and 2.
STPNOC seeks NRC approval of the proposed exemptions and amendment to the license based on a determination that the STP risk-informed approach and the risk associated with the postulated failure mechanisms due to GSI-191 concerns meets the guidance, key principles for risk-informed decision-making, and the acceptance guidelines in RG 1.174.
TALKING POINTS FOR DISCUSSION The STP piloted risk-informed approach to resolving GSI-191 shows that the risk associated with debris from pipe breaks that generate quantities of debris that are not bounded by plant -
specific prototypical testing is very small, in accordance with the acceptance criteria of RG 1.174. The effects of debris that is bounded by the plant-specific testing are deterministically mitigated in accordance with NRC-accepted methodology for resolution of GL 2004-02.
The risk associated with GSI-191 concerns includes the effects on long-term cooling due to debris accumulation on Emergency Core Cooling System (ECCS) and Containment Spray System (CSS) sump strainers in recirculation mode, as well as core flow blockage due to in-vessel effects, following loss of coolant accidents (LOCAs). A full spectrum of postulated LOCAs is analyzed, including double-ended guillotine breaks (DEGBs) for all pipe sizes up to the largest pipe in the reactor coolant system. The changes to CDF and LERF associated with GSI-191 concerns are quantified by applying the LOCA frequencies published in NUREG-1829, and then compared to RG 1.174 acceptance guidelines.
provides the methodology for the proposed risk-informed approach to addressing the GSI-191 issue as described in GL 2004-02, consistent with RG 1.174 guidance.
describes the proposed exemptions from certain regulatory requirements in accordance with the provisions of 10CFR50.12. This submittal revises the proposed licensing basis to change the proposed exemption to 10CFR50.46(b)(5) described in Reference 1 to an exemption to 10CFR50.46(d).
The requests for exemptions address regulatory requirements that concern the ECCS and CSS functions for emergency core cooling, containment heat removal, and containment atmosphere cleanup following postulated LOCAs:
x -1, 10CFR50.46 - (d),..other requirements applicable to ECCS x -2, GDC 35 - Emergency core cooling x -3, GDC 38 - Containment heat removal x -4, GDC 41 - Containment atmosphere cleanup provides the License Amendment Request (LAR), pursuant to 10CFR50.90, for approval of the proposed changes to the STP Units 1 and 2 licensing basis including page markups for the affected TS pages and Updated Final Safety Analysis Report (UFSAR) pages.
In this supplement STPNOC is proposing addition of a required action specific to the effects of debris to TS 3/4.5.2, ECCS Subsystems - Tavg Greater Than or Equal to 350° and TS3/4.6.2, Depressurization and Cooling Systems - Containment Spray System. The LAR includes technical and regulatory evaluations for the proposed change, a no significant hazards consideration determination pursuant to 10CFR50.92, and an environmental considerations review. The Plant Operations Review Committee has approved the proposed change. In accordance with 10CFR50.91(b), STPNOC has notified the State of Texas by transmitting a copy of this letter and enclosure to the State of Texas Official. Changes to the STP Technical Specifications and UFSAR are to be implemented pursuant to NRC approval of LAR.
To support the completion of work and resolution schedule for closure of GL2004-02 for STP, STPNOC requests approval of the proposed exemption requests and license amendment request by November 30, 2015.
TALKING POINTS FOR DISCUSSION A 90-day implementation period is requested to provide time to revise the applicable STP licensing documents and implement the Technical Specification changes. There are no other commitments in this letter.
If there are questions regarding this submittal, please contact Mike Murray at 361-972-8146, or me at 361-972-7566.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on __________________
G. T. Powell Site Vice President awh
Enclosures:
- 1. STP Piloted Risk-Informed Approach to Closure for GSI-191 1-1 Introduction This explains how the methodology works. It would also describe how we used CASA for debris generation and transport.
1-2 Deterministic Basis This is an update to the STP 12/2008 GL2004-02 response letter and the responses to the 2009 RAIs. (2009 RAI responses may fit better as a separate submittal or their own Enclosure.)
1-3 Risk-Informed Basis This is RoverD and should look substantially like what was included in the last RAI response.
1-4 Regulatory Basis Summary - brief discussion of need for exemptions and LAR 1-5 Summary and Conclusion
- 2. Requests for Exemptions for STP Piloted Risk-Informed Approach to Closure for GSI-191 2-1 Request for Exemption from 10CFR50.46(d) 2-2 Request for Exemption from General Design Criterion 35 2-3 Request for Exemption from General Design Criterion 38 2-4 Request for Exemption from General Design Criterion 41
- 3. License Amendment Request for STP Piloted Risk-informed Approach to Closure for GSI-191 : Technical Specification Page Markups : Clean Technical Specification Pages : Technical Specifications Bases Page Markups (Information Only) : STPEGS UFSAR Page Markups These will incorporate the SCVB RAI responses. Proposed UFSAR App. 6A will be much simpler than the previously submitted version due to RoverD.
- 4. List of Commitments
- 5. Definitions and Acronyms
