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| {{#Wiki_filter:Nuclear Operating CompanySouth Texas Pro/ect Electric Generating Station PO. Box 289 Wadsworth, Texas 77483 -July 7, 2014NOC-AE-14003157 File No.: G251 OCFR50.46 U. S. Nuclear Regulatory Commission Attention: | | {{#Wiki_filter:Nuclear Operating Company South Texas Pro/ect Electric Generating Station PO. Box 289 Wadsworth, Texas 77483 -July 7, 2014 NOC-AE-14003157 File No.: G25 1 OCFR50.46 U. S. Nuclear Regulatory Commission Attention: |
| Document Control DeskWashington, D.C. 20555-0001 South Texas ProjectUnit 1Docket No. STN 50-4981 OCFR50.46 Thirty-Day Report of Siqnificant ECCS Model Chanqes | | Document Control Desk Washington, D.C. 20555-0001 South Texas Project Unit 1 Docket No. STN 50-498 1 OCFR50.46 Thirty-Day Report of Siqnificant ECCS Model Chanqes |
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| Letter from R.F. Dunn to NRC Document Control Desk, "10CFR 50.46 ECCSEvaluation Model Significant Change/Error Report," | | Letter from R.F. Dunn to NRC Document Control Desk, "10CFR 50.46 ECCS Evaluation Model Significant Change/Error Report," dated October 17, 2012, NOC-AE-12002912 (ML12310A383) |
| dated October 17, 2012,NOC-AE-12002912 (ML12310A383) | | In accordance with the requirements of 10 CFR 50.46(a)(3)(ii),STP Nuclear Operating Company (STPNOC) is submitting a 30 day report for a significant change in the South Texas Unit 1 Emergency Core Cooling Model.The value for the hot assembly average rod Gamma Energy Deposition Model for Unit 1 Cycle 19, increased 0.0041 above the analyzed value of 0.984. This resulted in an estimated increase in Peak Clad Temperature (PCT) of 3°F to the value of 2117°F reported in the Reference letter.The new PCT value for Unit 1 Cycle 19 is 2120°F. Since the absolute value of PCT changes to the Analysis of Record exceeds 50'F, the change is considered significant in accordance with 1 OCFR50.46(a)(3)(i). |
| In accordance with the requirements of 10 CFR 50.46(a)(3)(ii),STP Nuclear Operating Company(STPNOC) is submitting a 30 day report for a significant change in the South Texas Unit 1Emergency Core Cooling Model.The value for the hot assembly average rod Gamma Energy Deposition Model for Unit 1 Cycle19, increased 0.0041 above the analyzed value of 0.984. This resulted in an estimated increasein Peak Clad Temperature (PCT) of 3°F to the value of 2117°F reported in the Reference letter.The new PCT value for Unit 1 Cycle 19 is 2120°F. Since the absolute value of PCT changes tothe Analysis of Record exceeds 50'F, the change is considered significant in accordance with1 OCFR50.46(a)(3)(i). | | No schedule for reanalysis is proposed since the Unit 1 Cycle 19 PCT remains below the 10CFR50.46(b)(1) limit of 2200°F.There are no commitments in this letter.If there are any questions please contact Charlie Albury at (361) 972-8901.Roland F. Dunn Manager Nuclear Fuel and Analysis cra STI: 33897028 NOC-AE-14003157 Page 2 of 2 cc: (paper copy)(electronic copy)Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 1600 East Lamar Boulevard Arlington, TX 76011-4511 Balwant K. Singal Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North (MS 8 B1)11555 Rockville Pike Rockville, MD 20852 NRC Resident Inspector U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MNl 16 Wadsworth, TX 77483 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP Balwant K. Singal U. S. Nuclear Regulatory Commission John Ragan Chris O'Hara Jim von Suskil NRG South Texas LP Kevin Polio Cris Eugster L. D. Blaylock CPS Energy Peter Nemeth Crain Caton & James, P.C.C. Mele John Wester City of Austin Richard A. Ratliff Texas Department of State Health Services Robert Free Texas Department of State Health Services}} |
| No schedule for reanalysis is proposed since the Unit 1 Cycle 19 PCT remains below the10CFR50.46(b)(1) limit of 2200°F.There are no commitments in this letter.If there are any questions please contact Charlie Albury at (361) 972-8901. | |
| Roland F. DunnManagerNuclear Fuel and AnalysiscraSTI: 33897028 NOC-AE-14003157 Page 2 of 2cc:(paper copy)(electronic copy)Regional Administrator, Region IVU. S. Nuclear Regulatory Commission 1600 East Lamar Boulevard Arlington, TX 76011-4511 Balwant K. SingalSenior Project ManagerU.S. Nuclear Regulatory Commission One White Flint North (MS 8 B1)11555 Rockville PikeRockville, MD 20852NRC Resident Inspector U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MNl 16Wadsworth, TX 77483A. H. Gutterman, EsquireMorgan, Lewis & Bockius LLPBalwant K. SingalU. S. Nuclear Regulatory Commission John RaganChris O'HaraJim von SuskilNRG South Texas LPKevin PolioCris EugsterL. D. BlaylockCPS EnergyPeter NemethCrain Caton & James, P.C.C. MeleJohn WesterCity of AustinRichard A. RatliffTexas Department of State HealthServicesRobert FreeTexas Department of State HealthServices}} | |
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Category:Letter
MONTHYEARML24029A2752024-01-29029 January 2024
Request to Reschedule Evaluated Force-on-Force Drill
IR 05000498/20230042024-01-29029 January 2024
Integrated Inspection Report 05000498/2023004 and 05000499/2023004
ML24024A1162024-01-24024 January 2024
STP Unit 2 Request for Information
IR 05000498/20244042024-01-18018 January 2024
Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000498/2024404; 05000499/2024404
IR 05000498/20230032023-12-28028 December 2023
Acknowledgment of Reply to a Notice of Violation (NRC Inspection Report 05000498/2023003 and 05000499/2023003)
ML23360A1692023-12-26026 December 2023
FEMA, Submittal of Radiological Emergency Preparedness Final Report for the South Texas Project Medical Services Drill Evaluated on August 31, 2023
NOC-AE-230040, Supplement to Proposed Alternate Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (Relief Request RR-ENG-4-06)2023-12-14014 December 2023
Supplement to Proposed Alternate Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (Relief Request RR-ENG-4-06)
NOC-AE-230039, Docket Nos. Stn 50-498, Stn 50-499 - Reply to a Notice of Violation, NRC Inspection Report 05000498/2023003 and 05000499/20230032023-12-12012 December 2023
Docket Nos. Stn 50-498, Stn 50-499 - Reply to a Notice of Violation, NRC Inspection Report 05000498/2023003 and 05000499/2023003
ML23326A2592023-12-0505 December 2023
Review of the Fall 2022 Steam Generator Tube Inspection Report
ML23339A1902023-12-0505 December 2023
Update Foreign Ownership, Control, or Influence (FOCI)
IR 05000498/20234012023-12-0404 December 2023
Security Baseline Inspection Report 05000498/2023401 and 05000499/2023401
ML23324A0102023-11-16016 November 2023
Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
ML23310A2282023-11-13013 November 2023
Integrated Inspection Report 05000498/2023003 and 05000499/2023003, and Notice of Violation
ML23311A2082023-11-0909 November 2023
Reassignment of U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch IV
ML23298A0002023-11-0101 November 2023
the Associated Independent Spent Fuel Storage Installation - Issuance of Amendment Nos. 226 and 211 Related to Order Approving Indirect Transfer of Licenses and Conforming License Amendments
ML23303A0782023-10-30030 October 2023
Submittal of Supplemental Information in Response to Order Consenting to License Transfers and Approval of Draft Conforming License Amendments
ML23279A0342023-10-30030 October 2023
Associated Independent Spent Fuel Storage Installation - Order Approving Indirect Transfer of Licenses and Draft Conforming License Amendments (EPID L-2023-LLM-0004) (Letter)
IR 05000498/20234032023-10-26026 October 2023
Material Control and Accounting Program Inspection Report 05000498/2023403 and 05000499/2023403 (Cover Letter)
ML23317A1262023-10-12012 October 2023
South. Texas Project Physical Security Plan, Training and Qualification Plan, Safeguards Contingency Plan, and Independent Spent Fuel Storage Installation Security Program Revision 26
ML23279A1382023-10-0505 October 2023
Responses to Requests for Additional Information Related to Application for Order Approving Indirect Transfer of Control of Licenses
ML23271A1942023-10-0303 October 2023
Notification of Commercial Grade Dedication Inspection (05000498/2024013 and 05000499/2024013) and Request for Information
ML23270B2592023-09-27027 September 2023
Update Foreign Ownership, Control, or Influence
ML23263B1132023-09-20020 September 2023
Operator Licensing Examination Schedule Revision 1
IR 05000498/20243012023-09-0707 September 2023
Notification of NRC Initial Operator Licensing Examination 05000498/2024301; 05000499/2024301
IR 05000498/20233012023-09-0101 September 2023
NRC Examination Report 05000498/2023301 and 05000499/2023301
ML23243B0562023-08-31031 August 2023
Supplemental Information to Application for Order Approving Indirect Transfer of Control of Licenses
ML23236A6042023-08-24024 August 2023
Annual Dose Report for 2022
IR 05000498/20230052023-08-22022 August 2023
Updated Inspection Plan for South Texas Project Electric Generating Station, Units 1 and 2 (Report 05000498/2023005 and 05000499/2023005) - Mid Cycle Letter
ML23229A5262023-08-17017 August 2023
Inservice Inspection Summary Report - 1 RE24,
ML23229A5892023-08-17017 August 2023
Voluntary Response to Regulatory Issue Summary (RIS) 2023-02, Scheduling Information for the Licensing of Accident Tolerant, Increased Enrichment, and Higher Burnup Fuels
ML23229A4992023-08-17017 August 2023
Supplement to Proposed Alternate Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (Relief Request RR-ENG-4-06)
ML23228A2102023-08-15015 August 2023
Closure of Investigation (OI 4-22-19)
ML23222A0322023-08-10010 August 2023
Report of Changes Made to Quality Assurance Program for Radioactive Material Packages
ML23221A3002023-08-0909 August 2023
RE22 Inspection Summary Report for Steam Generator Tubinq, Rev. 1 (Epld L-2023-LRO-0029)
ML23222A2792023-08-0909 August 2023
Submittal of Update Foreign Ownership, Control, or Influence (FOCI)
IR 05000498/20230022023-07-28028 July 2023
Integrated Inspection Report 05000498/2023002 and 05000499/2023002
ML23198A0532023-07-24024 July 2023
Request for Withholding Information from Public Disclosure
ML23188A1612023-07-14014 July 2023
the Associated ISFSI - Notice of Consideration of Approval of Indirect Transfer of Licenses and Conforming Amendments and Opportunity to Request a Hearing (EPID L-2023-LLM-0004) - Letter
ML23193A9932023-07-11011 July 2023
Submittal of Update Foreign Ownership, Control or Influence (FOCI)
ML23192A0482023-07-11011 July 2023
NRC Initial Operator Licensing Examination Approval 05000498/2023301; 05000499/2023301
NOC-AE-230039, Submittal of Update Foreign Ownership, Control or Influence (FOCI)2023-07-11011 July 2023
Submittal of Update Foreign Ownership, Control or Influence (FOCI)
ML23180A2822023-06-29029 June 2023
Operator Licensing Examination Schedule
ML23177A2522023-06-26026 June 2023
Units 1, 2 & Independent Spent Fuel Storage Installation - Biennial Submittal of Technical Specification Bases Changes, Commitment Changes, 10 CFR 50.59 Evaluation Summary, and 10 CFR 72.48 Evaluation Summary
ML23166B0802023-06-14014 June 2023
Update Foreign Ownership, Control, or Influence (FOCI)
ML23163A1762023-06-12012 June 2023
Application for Order Approving Indirect Transfer of Control of Licenses
2024-01-29
[Table view]
Category:Licensee 30-Day Written Event Report
[Table view] |
Text
Nuclear Operating Company South Texas Pro/ect Electric Generating Station PO. Box 289 Wadsworth, Texas 77483 -July 7, 2014 NOC-AE-14003157 File No.: G25 1 OCFR50.46 U. S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D.C. 20555-0001 South Texas Project Unit 1 Docket No. STN 50-498 1 OCFR50.46 Thirty-Day Report of Siqnificant ECCS Model Chanqes
Reference:
Letter from R.F. Dunn to NRC Document Control Desk, "10CFR 50.46 ECCS Evaluation Model Significant Change/Error Report," dated October 17, 2012, NOC-AE-12002912 (ML12310A383)
In accordance with the requirements of 10 CFR 50.46(a)(3)(ii),STP Nuclear Operating Company (STPNOC) is submitting a 30 day report for a significant change in the South Texas Unit 1 Emergency Core Cooling Model.The value for the hot assembly average rod Gamma Energy Deposition Model for Unit 1 Cycle 19, increased 0.0041 above the analyzed value of 0.984. This resulted in an estimated increase in Peak Clad Temperature (PCT) of 3°F to the value of 2117°F reported in the Reference letter.The new PCT value for Unit 1 Cycle 19 is 2120°F. Since the absolute value of PCT changes to the Analysis of Record exceeds 50'F, the change is considered significant in accordance with 1 OCFR50.46(a)(3)(i).
No schedule for reanalysis is proposed since the Unit 1 Cycle 19 PCT remains below the 10CFR50.46(b)(1) limit of 2200°F.There are no commitments in this letter.If there are any questions please contact Charlie Albury at (361) 972-8901.Roland F. Dunn Manager Nuclear Fuel and Analysis cra STI: 33897028 NOC-AE-14003157 Page 2 of 2 cc: (paper copy)(electronic copy)Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 1600 East Lamar Boulevard Arlington, TX 76011-4511 Balwant K. Singal Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North (MS 8 B1)11555 Rockville Pike Rockville, MD 20852 NRC Resident Inspector U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MNl 16 Wadsworth, TX 77483 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP Balwant K. Singal U. S. Nuclear Regulatory Commission John Ragan Chris O'Hara Jim von Suskil NRG South Texas LP Kevin Polio Cris Eugster L. D. Blaylock CPS Energy Peter Nemeth Crain Caton & James, P.C.C. Mele John Wester City of Austin Richard A. Ratliff Texas Department of State Health Services Robert Free Texas Department of State Health Services
