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| | number = ML081400647 | | | number = ML081400647 |
| | issue date = 05/27/2008 | | | issue date = 05/27/2008 |
| | title = Project, Units 1 & 2, Request for Additional Information, License Amendment Request, Revise TS 3.3.1, Reactor Trip Instrumentation, to Establish Required Action for Inoperable Extended Range Neutron Flux Instrumentation | | | title = Request for Additional Information, License Amendment Request, Revise TS 3.3.1, Reactor Trip Instrumentation, to Establish Required Action for Inoperable Extended Range Neutron Flux Instrumentation |
| | author name = Thadani M C | | | author name = Thadani M |
| | author affiliation = NRC/NRR/ADRO/DORL/LPLIV | | | author affiliation = NRC/NRR/ADRO/DORL/LPLIV |
| | addressee name = Sheppard J J | | | addressee name = Sheppard J |
| | addressee affiliation = South Texas Project Nuclear Operating Co | | | addressee affiliation = South Texas Project Nuclear Operating Co |
| | docket = 05000498, 05000499 | | | docket = 05000498, 05000499 |
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Line 105: |
| The proposed license amendment request will revise the current Action 5 to make it applicable for one and two inoperable channels. The proposed Action 5 reads: | | The proposed license amendment request will revise the current Action 5 to make it applicable for one and two inoperable channels. The proposed Action 5 reads: |
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| ACTION 5- | | ACTION 5- |
| : a. With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 72 hours, or suspend all operations involving positive reactivity changes. | | : a. With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 72 hours, or suspend all operations involving positive reactivity changes. |
| Note: Plant temperature changes or boron dilution is allowed provided the change is accounted for in the calculated SHUTDOWN MARGIN. b. With the number of OPERABLE channels two less than the Minimum Channels OPERABLE requirement, restore at least one channel to OPERABLE status within 1 hour, or | | Note: Plant temperature changes or boron dilution is allowed provided the change is accounted for in the calculated SHUTDOWN MARGIN. b. With the number of OPERABLE channels two less than the Minimum Channels OPERABLE requirement, restore at least one channel to OPERABLE status within 1 hour, or |
| : 1. Suspend all operations involving positive reactivity changes, and Note: Operations involving plant temperature changes may proceed provided the change is accounted for in the calculated SHUTDOWN MARGIN when ACTION 5.b.2 is completed and reactor coolant system boron concentration has been verified to be within required limits, | | : 1. Suspend all operations involving positive reactivity changes, and Note: Operations involving plant temperature changes may proceed provided the change is accounted for in the calculated SHUTDOWN MARGIN when ACTION 5.b.2 is completed and reactor coolant system boron concentration has been verified to be within required limits, |
| : 2. Immediately initiate action to secure each valve or mechanical joint used to isolate unborated water sources from the reactor coolant system, and | | : 2. Immediately initiate action to secure each valve or mechanical joint used to isolate unborated water sources from the reactor coolant system, and |
| : 3. Within 4 hours and once per 12 hours thereafter, verify SHUTDOWN MARGIN is within limits specified in the COLR. | | : 3. Within 4 hours and once per 12 hours thereafter, verify SHUTDOWN MARGIN is within limits specified in the COLR. |
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| The licensee stated that the proposed TS changes are based on NUREG-1431, "Standard Technical Specifications - Westinghouse Plants." The staff observed that the proposed Actions 5.a and 5.b differ from TS 3.3.9 in NUREG-1431, and specifically, as shown below, not all of the required actions in the proposed Action 5.a and 5.b are consistent with similar required actions in NUREG-1431. | | The licensee stated that the proposed TS changes are based on NUREG-1431, "Standard Technical Specifications - Westinghouse Plants." The staff observed that the proposed Actions 5.a and 5.b differ from TS 3.3.9 in NUREG-1431, and specifically, as shown below, not all of the required actions in the proposed Action 5.a and 5.b are consistent with similar required actions in NUREG-1431. |
| : 1. The statement, "OR Required Action and Associated Completion Time of Condition A not met" specified under Condition B in NUREG-1431 is not addressed in the proposed Action 5.a and 5.b. | | : 1. The statement, "OR Required Action and Associated Completion Time of Condition A not met" specified under Condition B in NUREG-1431 is not addressed in the proposed Action 5.a and 5.b. |
| : 2. In the proposed Action 5b "or" is specified at the end of the statement, "With number of OPERABLE channels two less than the Minimum Channels OPERABLE requirement, restore at least one channel to OPERABLE status within 1 hour, or" while "AND" is specified in the Required Action B.1 in NUREG-1431 for the same Action. | | : 2. In the proposed Action 5b "or" is specified at the end of the statement, "With number of OPERABLE channels two less than the Minimum Channels OPERABLE requirement, restore at least one channel to OPERABLE status within 1 hour, or" while "AND" is specified in the Required Action B.1 in NUREG-1431 for the same Action. |
| : 3. Condition B.1, "Suspend operations involving positive reactivity additions" in NUREG-1431 requires "Immediate" suspension of operations involving positive reactivity additions while the corresponding proposed Condition 5.b.1, does not specify any time requirement. | | : 3. Condition B.1, "Suspend operations involving positive reactivity additions" in NUREG-1431 requires "Immediate" suspension of operations involving positive reactivity additions while the corresponding proposed Condition 5.b.1, does not specify any time requirement. |
| : 4. The proposed Action 5.b.1 has "and" at the end of the statement, "Suspend all operations involving positive reactivity changes, and" while the NUREG-1431 has "OR" for the same required actions in B.1 and B.2.1. | | : 4. The proposed Action 5.b.1 has "and" at the end of the statement, "Suspend all operations involving positive reactivity changes, and" while the NUREG-1431 has "OR" for the same required actions in B.1 and B.2.1. |
| : 5. The proposed Action 5.b.3 states, "Within 4 hours and once per 12 hours thereafter" while NUREG-1431, Required Action B.2.2.2 states, "1 hour AND Once per 12 hours thereafter" for this Action. | | : 5. The proposed Action 5.b.3 states, "Within 4 hours and once per 12 hours thereafter" while NUREG-1431, Required Action B.2.2.2 states, "1 hour AND Once per 12 hours thereafter" for this Action. |
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| Please explain why the above proposed TS changes are different from the corresponding statements in the NUREG-1431.}} | | Please explain why the above proposed TS changes are different from the corresponding statements in the NUREG-1431.}} |
Letter Sequence RAI |
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MONTHYEARNOC-AE-07002234, Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C2008-01-28028 January 2008 Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C Project stage: Request ML0814006472008-05-27027 May 2008 Request for Additional Information, License Amendment Request, Revise TS 3.3.1, Reactor Trip Instrumentation, to Establish Required Action for Inoperable Extended Range Neutron Flux Instrumentation Project stage: RAI NOC-AE-08002319, Response to RAI Revision to Proposed Amendment to TS 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C2008-07-28028 July 2008 Response to RAI Revision to Proposed Amendment to TS 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C Project stage: Response to RAI NOC-AE-08002351, Revision 2 to Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C2008-09-25025 September 2008 Revision 2 to Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C Project stage: Other NOC-AE-08002354, Request to Defer Part of Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C2008-09-30030 September 2008 Request to Defer Part of Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Action C Project stage: Other ML0828102862008-10-16016 October 2008 License Amendment Nos. 187 and 174, Revise TS 3.3.1, Reactor Trip Instrumentation, to Establish Required Action for Inoperable Extended Range Neutron Flux Instrumentation Project stage: Other ML0831804402008-11-17017 November 2008 Corrections to Amendments 187 and 174 Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Project stage: Other NOC-AE-08002363, Supplement to Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation2008-11-24024 November 2008 Supplement to Proposed Amendment to Technical Specification 3.3.1 Required Action for Inoperable Extended Range Neutron Flux Instrumentation Project stage: Supplement ML0901206542009-01-28028 January 2009 License Amendment Nos. 189 and 177, Revise Action 5 in TS Table 3.3-1 to Add Remedial Actions, Extended Range Neutron Flux Instrumentation and Technical Specification 3.4.1.4.2 Project stage: Acceptance Review 2008-05-27
[Table View] |
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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:Request for Additional Information (RAI)
MONTHYEARML24024A1162024-01-24024 January 2024 STP Unit 2 Request for Information ML23334A0062023-11-29029 November 2023 NRR E-mail Capture - South Texas Project - Request for Additional Information - Proposed Alternative to ASME BPV Code Requirements ML23319A4442023-11-15015 November 2023 NRR E-mail Capture - South Texas Project - Draft Request for Additional Information - Proposed Alternative to ASME BPV Code Requirements ML23278A1532023-10-0505 October 2023 NRR E-mail Capture - South Texas Project Request for Additional Information - Request for Indirect Transfer of Licenses and Conforming Amendments (L-2023-LLM-0004) ML23264A0972023-09-21021 September 2023 NRR E-mail Capture - South Texas Project - Request for Additional Information - License Amendment Request to Revise the Alternate Source Term Dose Calculation (L-2023-LLA-0047) ML23255A2862023-09-12012 September 2023 NRR E-mail Capture - South Texas Project Draft Request for Additional Information License Amendment Request to Revise the Alternate Source Term Dose Calculation (L-2023-LLA-0047) ML23145A1872023-05-24024 May 2023 July 2023 Emergency Preparedness Program Inspection - Request for Information ML22255A1542022-09-13013 September 2022 Operating Company Information Request for the Cyber Security Baseline Inspection 05000498/2022401 and 05000499/2022401 ML22206A0142022-07-20020 July 2022 NRR E-mail Capture - South Texas Project - Request for Additional Information - 10 CFR 20.2002 Alternate Disposal Request ML22194A0502022-07-0707 July 2022 NRR E-mail Capture - South Texas Project - Updated Draft Request for Additional Information - 10 CFR 20.2002 Alternate Disposal Request ML22194A0492022-06-0808 June 2022 NRR E-mail Capture - South Texas Project - Draft Request for Additional Information - 10 CFR 20.2002 Alternate Disposal Request ML22123A3272022-05-0303 May 2022 STP EP Exercise Inspection July 2022 RFI ML22084A0762022-04-0404 April 2022 Notification of NRC Design Bases Assurance Inspection (Team) (05000498/2022012 and 05000499/2022012) and Request for Information ML21286A5732021-10-18018 October 2021 Notification of NRC Design Bases Assurance Inspection (Programs) (05000498/2022011 and 05000499/2022011) and Request for Information ML21166A2392021-06-16016 June 2021 Notification of Inspection (NRC Inspection Report 05000498/2021003 and 05000499/2021003) and Request for Information ML21160A1522021-06-0909 June 2021 Request for Information NRC Inspection 2021-003 Public Radiation Safety ML21133A2372021-05-0505 May 2021 Request for Additional Information: STP EP Exercise Inspection - July 2021 ML21039A8902021-02-0808 February 2021 NRR E-mail Capture - South Texas Project - Request for Additional Information - 1RE22 Inspection Summary Report for Steam Generator Tubing ML21029A3312021-01-29029 January 2021 NRR E-mail Capture - South Texas Project - Draft Request for Additional Information - 1RE22 Inspection Summary Report for Steam Generator Tubing ML20280A5452020-08-17017 August 2020 STP 2020 PIR Request for Information ML20111A0052020-04-17017 April 2020 NRR E-mail Capture - South Texas Project - Request for Additional Information - Proposed Alternative to ASME OM Code 2012 Edition - Relief Request PRR-01 ML20070N0222020-03-10010 March 2020 NRC Selection for Onsite Review ML20057G4612020-02-26026 February 2020 05000498/499 Request for Information - Occupational Radiation Safety Inspection ML20045E2172020-02-13013 February 2020 Licensed Operator Positive Fitness-For-Duty Test ML20036F5862020-02-0404 February 2020 Request for Additional Information - Proposed Alternative to ASME Code Requirements for the Repair of Essential Cooling Water System Class 3 Buried Piping (EPID L-2019-LLR-0096)Redacted ML19165A1032019-06-14014 June 2019 NRR E-mail Capture - Draft RAI for STP TS 3.8.1.1 Sbdg SR Change ML19081A1512019-03-21021 March 2019 NRR E-mail Capture - Draft Round 2 RAI - Sbdg Voltage and Frequency LAR (L-2018-LLA-0078) ML18283B9522018-10-10010 October 2018 NRR E-mail Capture - Final RAI - South Texas Standby DG TS Change (L-2018-LLA-0078) ML18263A1432018-09-12012 September 2018 NRR E-mail Capture - Final RAI for South Texas Project RR-ENG-E-16 (L-2018-LLR-0097) ML18197A4172018-07-17017 July 2018 Notification of NRC Triennial Heat Sink Performance Inspection (05000498/2018003 and 05000499/2018003) and Request for Information ML18003B4222018-01-0303 January 2018 NRR E-mail Capture - Final Request for Additional Information Amendment Request to Modify the Emergency Response Organization for South Texas Project ML17229B4672017-08-16016 August 2017 Notification of NRC Inspection 05000499/2017008 and Request for Information ML17132A0712017-05-15015 May 2017 Information Request the Cyber Security Baseline Inspection, Notification to Perform Inspection 05000498/2017407; 05000499/2017407 ML17103A6272017-04-13013 April 2017 Notification of Evaluations of Changes, Tests, and Experiments Inspection (05000498/2017007 and 05000499/2017007) and Request for Information 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) 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) ML16343A0422016-12-0808 December 2016 Request for Additional Information for the Review of the South Texas Project, Units 1 and 2 License Renewal Application (CAC NOS. ME4936, ME4937) ML16340A1022016-12-0505 December 2016 Requests for Additional Information for the Review of the South Texas Project License Renewal Application (CAC Nos. ME4936 and ME4937) ML16246A0952016-09-15015 September 2016 Correction to 8/26/16 Request for Additional Information Enclosure, License Amendment Request to Revise Technical Specification 5.3.2 to Allow Operation with 56 Full-Length Control Rod Assemblies ML16214A2912016-08-26026 August 2016 Summary of June 28-30, 2016, Regulatory Audit at Westinghouse in Rockville, MD, License Amendment Request to Revise Technical Specification 5.3.2 to Allow Operation with 56 Full-Length Control Rod Assemblies ML16187A0522016-07-0707 July 2016 Request for Additional Information Regarding License Renewal Application 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 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) ML16127A4522016-05-12012 May 2016 Supplemental Information Needed for Acceptance of Requested Licensing Action, Amendment Request to Revise Technical Specification 5.3.2 to Allow Operation with 56 Full-Length Control Rod Assemblies ML16104A3522016-04-22022 April 2016 Requests for Additional Information Set 35 for the Review of the South Texas Project License Renewal Application (Tac Nos. ME4936, ME4937) 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) ML16082A4842016-03-22022 March 2016 NRR E-mail Capture - South Texas Project Units 1 & 2, Draft Request for Additional Information for Risk Review for GSI-191 ML16081A0042016-03-18018 March 2016 NRR E-mail Capture - South Texas Project Units 1 & 2, Draft Request for Additional Information for Thermal-hydraulic Review for GSI-191 ML16053A1872016-03-0101 March 2016 Request for Additional Information, Request to Revise Technical Specification 6.8.3.j, Containment Leakage Rate Testing Program, to Extend Integrated Leak Rate Test Interval from 10 to 15 Years (CAC MF6176-MF6177) ML16060A2872016-02-29029 February 2016 NRR E-mail Capture - Request for Additional Information - STP LRA Safety Review 2024-01-24
[Table view] |
Text
May 27, 2008
Mr. James J. Sheppard President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P.O. Box 289 Wadsworth, TX 77483
SUBJECT:
SOUTH TEXAS PROJECT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RE: LICENSE AMENDMENT REQUEST RELATED TO INOPERABLE EXTENDED RANGE NEUTRON FLUX INSTRUMENTATION (TAC NOS. MD8003 AND MD8004)
Dear Mr. Sheppard:
By application dated January 28, 2008. STP Nuclear Operating Company (the licensee) requested the U.S. Nuclear Regulatory Commission (NRC) staff approval of amendments to the South Texas Project, Units 1 and 2, to revise the Action 5 in Technical Specifications (TS)
Table 3.3-1, "Reactor Trip Instrumentation," to add an Action for two inoperable channels of extended range neutron flux instrumentation, and to make an editorial change to TS 3.4.1.4.2, "Reactor Coolant System Cold Shutdown-Loops not Fill ed, Action c."
The NRC staff has reviewed the information provided in your submittal and determined that additional information is required in order to complete its review. Please provide a response to the enclosed questions by June 30, 2008.
The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for the NRC staff review and contribute toward the NRC's goal of efficient and effective use of the NRC staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1476.
Sincerely,
/RA/
Mohan C. Thadani, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Docket Nos. 50-498 and 50-499
Enclosure:
Request for Additional Information
cc w/encl: See next page
ML081400647 (*) memo dated OFFICE NRR/LPL4/PM NRR/LPL4/LA DE/EICB/BC NRR/LPL4/BC NAME MThadani JBurkhardt WKemper (*) THiltz DATE 5/27/08 5/21/08 5/15/08 5/27/08 South Texas Project, Units 1 and 2 12/5/2007
cc:
Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 289 Wadsworth, TX 77483
C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704
J. J. Nesrsta/R. K. Temple E. Alercon/Kevin Pollo CPS Energy P.O. Box 1771 San Antonio, TX 78296
INPO Records Center 700 Galleria Parkway Atlanta, GA 30339-3064
Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011
Steve Winn/Christie Jacobs Eddy Daniels/Marty Ryan NRC Energy, Inc.
211 Carnegie Center Princeton, NJ 08540
Mr. Nate McDonald County Judge for Matagorda County
1700 7 th Street, Room 301 Bay City, TX 77414
A. H. Gutterman, Esq.
Morgan, Lewis & Bockius 1111 Pennsylvania Avenue, NW Washington, DC 20004
E. D. Halpin, Site Vice President STP Nuclear Operating Company South Texas Project Electric Generating Station P.O. Box 289 Wadsworth, TX 77483 S. M. Head, Manager, Licensing STP Nuclear Operating Company P.O. Box 289, Mail Code: N5014 Wadsworth, TX 77483
C. T. Bowman, General Manager, Oversight STP Nuclear Operating Company P.O Box 289 Wadsworth, TX 77483
Ms. Marilyn Kistler Senior Staff Specialist, Licensing STP Nuclear Operating Company P.O. Box 289, Mail Code 5014 Wadsworth, TX 77483
Environmental and Natural Resources Policy Director P.O. Box 12428 Austin, TX 78711-3189
Mr. Jon C. Wood Cox, Smith, & Matthews 112 East Pecan, Suite 1800 San Antonio, TX 78205
Director, Division of Compliance & Inspection Bureau of Radiation Control Texas Department of State Health Services 1100 West 49th Street Austin, TX 78756
Mr. Ted Enos 4200 South Hulen
Suite 422 Ft. Worth, TX 76109
Mr. Brian Almon Public Utility Commission of Texas P.O. Box 13326 Austin, TX 78711-3326
South Texas Project, Units 1 and 2 12/5/2007
Ms. Susan M. Jablonski Office of Permitting, Remediation and Registration Texas Commission on Environmental Quality MC-122 P.O. Box 13087 Austin, TX 78711-3087
Mr. Ken Coates, Plant General Manager STP Nuclear Operating Company South Texas Project Electric Generating Station P.O. Box 289 Wadsworth, TX 77483
Mr. Anthony P. Jones, Chief Boiler Inspector Texas Department of Licensing and Regulation Boiler Division E.O. Thompson State Office Building P.O. Box 12157 Austin, TX 78711
OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST STP NUCLEAR OPERATING COMPANY SOUTH TEXAS PROJECT, UNITS 1 AND 2 DOCKET NOS. 50-498 AND 50-499
The current Action 5 for Extended Range Neutron Flux, Functional Unit 7, in Technical Specifications (TS) Table 3.3-1, "Reactor Trip Instrumentation," specifies an Action when the number of OPERABLE channels is one less than the Minimum Channels OPERABLE specified in TS Table 3.3-1. Current TS Table 3.3-1, Action 5 reads:
With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, suspend all operations involving positive reactivity changes.
Plant temperature changes or boron dilution is allowed provided the change is accounted for in the calculated SHUTDOWN MARGIN.
The proposed license amendment request will revise the current Action 5 to make it applicable for one and two inoperable channels. The proposed Action 5 reads:
ACTION 5-
- a. With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, or suspend all operations involving positive reactivity changes.
Note: Plant temperature changes or boron dilution is allowed provided the change is accounted for in the calculated SHUTDOWN MARGIN. b. With the number of OPERABLE channels two less than the Minimum Channels OPERABLE requirement, restore at least one channel to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, or
- 1. Suspend all operations involving positive reactivity changes, and Note: Operations involving plant temperature changes may proceed provided the change is accounted for in the calculated SHUTDOWN MARGIN when ACTION 5.b.2 is completed and reactor coolant system boron concentration has been verified to be within required limits,
- 2. Immediately initiate action to secure each valve or mechanical joint used to isolate unborated water sources from the reactor coolant system, and
- 3. Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter, verify SHUTDOWN MARGIN is within limits specified in the COLR.
The licensee stated that the proposed TS changes are based on NUREG-1431, "Standard Technical Specifications - Westinghouse Plants." The staff observed that the proposed Actions 5.a and 5.b differ from TS 3.3.9 in NUREG-1431, and specifically, as shown below, not all of the required actions in the proposed Action 5.a and 5.b are consistent with similar required actions in NUREG-1431.
- 1. The statement, "OR Required Action and Associated Completion Time of Condition A not met" specified under Condition B in NUREG-1431 is not addressed in the proposed Action 5.a and 5.b.
- 2. In the proposed Action 5b "or" is specified at the end of the statement, "With number of OPERABLE channels two less than the Minimum Channels OPERABLE requirement, restore at least one channel to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, or" while "AND" is specified in the Required Action B.1 in NUREG-1431 for the same Action.
- 3. Condition B.1, "Suspend operations involving positive reactivity additions" in NUREG-1431 requires "Immediate" suspension of operations involving positive reactivity additions while the corresponding proposed Condition 5.b.1, does not specify any time requirement.
- 4. The proposed Action 5.b.1 has "and" at the end of the statement, "Suspend all operations involving positive reactivity changes, and" while the NUREG-1431 has "OR" for the same required actions in B.1 and B.2.1.
- 5. The proposed Action 5.b.3 states, "Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter" while NUREG-1431, Required Action B.2.2.2 states, "1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> AND Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter" for this Action.
Please explain why the above proposed TS changes are different from the corresponding statements in the NUREG-1431.