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| {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 March 24, 2015 | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 March 24, 2015 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| CLINTON POWER STATION, UNIT 1 -REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT (TAC NO. MF5291) | | CLINTON POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT (TAC NO. MF5291) |
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| ==Dear Mr. Hanson:== | | ==Dear Mr. Hanson:== |
| By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months and adds a provision to apply surveillance requirement 3.0.2 to TS 5.5.2 requirements. | | |
| The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The U.S. Nuclear Regulatory Commission staff is reviewing the submittals and has determined that additional information is needed to complete its review. A response to the enclosed request should be provided within 30 days from the date of this letter. This request was discussed with Mr. Tim Byam of your staff on March 23, 2015. | | By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months and adds a provision to apply surveillance requirement 3.0.2 to TS 5.5.2 requirements. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The U.S. Nuclear Regulatory Commission staff is reviewing the submittals and has determined that additional information is needed to complete its review. |
| B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at blake.purnell@nrc.gov. | | A response to the enclosed request should be provided within 30 days from the date of this letter. This request was discussed with Mr. Tim Byam of your staff on March 23, 2015. |
| Docket No. 50-461 | | |
| | B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at blake.purnell@nrc.gov. |
| | Sincerely, Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461 |
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| ==Enclosure:== | | ==Enclosure:== |
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| Request for Additional Information cc w/encl: Listserv Sincerely, Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" CLINTON POWER STATION, UNIT 1 DOCKET NO. 50-461 By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise technical specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months and adds a provision to apply surveillance requirement (SR) 3.0.2 to TS 5.5.2 requirements. | | Request for Additional Information cc w/encl: Listserv |
| The U.S. Nuclear Regulatory Commission (NRC) staff is reviewing the submittal and has determined that additional information below is needed to complete its review. RAl-1 Background The CPS SR 3.0.2 is consistent with the improved standard technical specifications (STS) (see NUREG-1434, Revision 4, "Standard Technical Specifications
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| -General Electric Plants (BWR/6)," Revision 4, April 2012). SR 3.0.2 states, in part: The specified Frequency for each SR is met if the Surveillance is performed within 1.25 times the interval specified in the Frequency, as measured from the previous performance or as measured from the time a specified condition of the Frequency is met. On August 23, 2012, the NRC issued Regulatory Issue Summary (RIS) 2012-10, "NRC Staff Position on Applying Surveillance Requirements 3.0.2 and 3.0.3 to Administrative Controls Program Tests," which states: [An NRC] review determined that restructuring TS chapters during the development of improved [STS] resulted in unintended consequences when Section 3.0, "Surveillance Requirement Applicability," provisions were made applicable to Section 5.0 TS. Specifically, applying STS rules of usage would prohibit licensees from using the SR 3.0.2 and SR 3.0.3 allowances in Section 5.0 TS, unless the Section 5.0 TS tests are associated with a TS SR. Enclosure The RIS further states: SR 3.0.2 and SR 3.0.3 cannot be applied to TS 5.5 for tests that are not associated with a TS SR. Therefore, programmatic test frequencies cannot be extended in accordance with SR 3.0.2, and programmatic test frequencies cannot be delayed in accordance with SR 3.0.3, when there is no associated requirement from SR 3.0.1 for program tests to be both performed and met. Using SR 3.0.2 to extend a program test or using SR 3.0.3 to delay declaring a missed program test "not met" without having a TS SR related to the program test would result in noncompliance with TS or nonconformance with other regulatory requirements because these SR allowances cannot be applied to SR tests. The licensee's application requests that SR 3.0.2 be made applicable to TS 5.5.2 requirements.
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| The applications states: Additionally, to be consistent with normal surveillance requirements that allow for a 25% extension of the frequency in accordance with SR 3.0.2, the SR 3.0.2 allowance is also being proposed to be applied to TS 5.5.2. This is acceptable since TS 5.5.2 testing is considered a surveillance requirement.
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| As stated in TSTF [Technical Specification Task Force]-299-A, since SR 3.0.2 only applies to TS [limiting condition for operation]
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| Sections 3.0 through 3.9, it is appropriate to add the explicit SR 3.0.2 statement to TS 5.5.2. The application of the SR 3.0.2 allowance to CPS TS 5.5.2 ensures CPS consistency with the [improved STS] 5.5.2 provided in [NUREG-1434, Revision 4]. The purpose of TSTF-299 is to allow a 25 percent extension of a TS administrative control program frequency, similar to the way SR 3.0.2 is applied to SRs. The concern is that SR 3.0.2 is not applicable to programs which do not have an associated SR. The NRC staff is working on correcting the STS in this regard. Request Revise the wording of the proposed change to address the concern described above.
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| B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at blake.purnell@nrc.gov.
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| Docket No. 50-461
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| ==Enclosure:== | | REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" CLINTON POWER STATION, UNIT 1 DOCKET NO. 50-461 By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise technical specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months and adds a provision to apply surveillance requirement (SR) 3.0.2 to TS 5.5.2 requirements. The U.S. Nuclear Regulatory Commission (NRC) staff is reviewing the submittal and has determined that additional information below is needed to complete its review. |
| | RAl-1 |
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| | ===Background=== |
| | The CPS SR 3.0.2 is consistent with the improved standard technical specifications (STS) (see NUREG-1434, Revision 4, "Standard Technical Specifications - General Electric Plants (BWR/6)," Revision 4, April 2012). SR 3.0.2 states, in part: |
| | The specified Frequency for each SR is met if the Surveillance is performed within 1.25 times the interval specified in the Frequency, as measured from the previous performance or as measured from the time a specified condition of the Frequency is met. |
| | On August 23, 2012, the NRC issued Regulatory Issue Summary (RIS) 2012-10, "NRC Staff Position on Applying Surveillance Requirements 3.0.2 and 3.0.3 to Administrative Controls Program Tests," which states: |
| | [An NRC] review determined that restructuring TS chapters during the development of improved [STS] resulted in unintended consequences when Section 3.0, "Surveillance Requirement Applicability," provisions were made applicable to Section 5.0 TS. Specifically, applying STS rules of usage would prohibit licensees from using the SR 3.0.2 and SR 3.0.3 allowances in Section 5.0 TS, unless the Section 5.0 TS tests are associated with a TS SR. |
| | Enclosure |
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| | The RIS further states: |
| | SR 3.0.2 and SR 3.0.3 cannot be applied to TS 5.5 for tests that are not associated with a TS SR. Therefore, programmatic test frequencies cannot be extended in accordance with SR 3.0.2, and programmatic test frequencies cannot be delayed in accordance with SR 3.0.3, when there is no associated requirement from SR 3.0.1 for program tests to be both performed and met. |
| | Using SR 3.0.2 to extend a program test or using SR 3.0.3 to delay declaring a missed program test "not met" without having a TS SR related to the program test would result in noncompliance with TS or nonconformance with other regulatory requirements because these SR allowances cannot be applied to non-SR tests. |
| | The licensee's application requests that SR 3.0.2 be made applicable to TS 5.5.2 requirements. |
| | The applications states: |
| | Additionally, to be consistent with normal surveillance requirements that allow for a 25% extension of the frequency in accordance with SR 3.0.2, the SR 3.0.2 allowance is also being proposed to be applied to TS 5.5.2. This is acceptable since TS 5.5.2 testing is considered a surveillance requirement. As stated in TSTF [Technical Specification Task Force]-299-A, since SR 3.0.2 only applies to TS [limiting condition for operation] Sections 3.0 through 3.9, it is appropriate to add the explicit SR 3.0.2 statement to TS 5.5.2. The application of the SR 3.0.2 allowance to CPS TS 5.5.2 ensures CPS consistency with the [improved STS] |
| | 5.5.2 provided in [NUREG-1434, Revision 4]. |
| | The purpose of TSTF-299 is to allow a 25 percent extension of a TS administrative control program frequency, similar to the way SR 3.0.2 is applied to SRs. The concern is that SR 3.0.2 is not applicable to programs which do not have an associated SR. The NRC staff is working on correcting the STS in this regard. |
| | Request Revise the wording of the proposed change to address the concern described above. |
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| Request for Additional Information cc w/encl: Listserv DISTRIBUTION:
| | ML15062A648 *via e-mail OFFICE LPL3-2/PM LPL3-2/LA STSB/BC* LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer RElliott TTate BPurnell DATE 3/4/15 3/4/15 3/2/15 3/24/15 3/24/15}} |
| Sincerely, IRA/ Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation PUBLIC RidsNrrPMClinton RidsNrrDssScvb LPL3-2 R/F RidsAcrsAcnwMailCenter RidsNrrDorllpl3-2 BPurnell RidsRgn3MailCenter RidsNrrLASRohrer RidsNrrDssStsb SPeng KWest ADAMS Accession No.:ML15062A648
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| *via e-mail OFFICE LPL3-2/PM LPL3-2/LA STSB/BC* LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer RElliott TTate BPurnell DATE 3/4/15 3/4/15 3/2/15 3/24/15 3/24/15 OFFICIAL RECORD COPY}} | |
Letter Sequence RAI |
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TAC:MF5291, Administrative Controls Program 5.5.2.B Test Interval and Exception (Approved, Closed) |
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MONTHYEARRS-14-308, License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment.2014-11-17017 November 2014 License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment. Project stage: Request ML15015A6702015-01-14014 January 2015 NRR E-mail Capture - Clinton Power Station, Unit 1 - Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside of Containment Project stage: Other ML15062A6482015-03-24024 March 2015 Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment Project stage: RAI RS-15-121, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment.2015-04-21021 April 2015 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment. Project stage: Response to RAI ML15106A9282015-04-24024 April 2015 Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, :Primary Coolant Sources Outside Containment Project stage: RAI RS-15-141, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment.2015-06-24024 June 2015 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment. Project stage: Response to RAI RS-15-298, Supplement to License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment.2015-11-16016 November 2015 Supplement to License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment. Project stage: Supplement ML15251A5842015-12-18018 December 2015 Issuance of Amendment Concerning Revision to Integrated Leak Test Intervals (TAC No. MF5291)(RS-14-308) Project stage: Approval 2015-12-18
[Table View] |
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Category:Letter
MONTHYEARIR 05000461/20230042024-02-0202 February 2024 Integrated Inspection Report 05000461/2023004 ML23361A1572024-01-24024 January 2024 Audit Plan in Support of Review of License Amendment Request Regarding Revision of Technical Specifications Related to Reactor Water Cleanup Isolation ML24004A0792024-01-18018 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0041 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) IR 05000461/20234022023-12-27027 December 2023 Security Baseline Inspection Report 05000461/2023402 ML23305A1402023-12-13013 December 2023 Units 1 & 2; Nine Mile Point, Unit 2; Peach Bottom, Units 2 & 3; and Quad Cities, Units 1 and 2 - Issuance of Amendments to Adopt Traveler TSTF-580 IR 05000461/20235012023-12-0505 December 2023 Emergency Preparedness Biennial Exercise Inspection Report 05000461/2023501 ML23284A2512023-11-22022 November 2023 Amendment No. 250 to Adopt TSTF-332 ML23317A1192023-11-10010 November 2023 Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums IR 05000461/20230032023-11-0808 November 2023 Integrated Inspection Report 05000461/2023003 ML22300A2212023-11-0202 November 2023 Preliminary Decommissioning Cost Estimate and Fuel Management Plan RS-23-097, Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans2023-10-12012 October 2023 Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans IR 05000461/20233012023-09-12012 September 2023 NRC Initial License Examination Report 05000461/2023301 RS-23-090, Annual Report of Emergency Core Cooling System Evaluation Model Changes and Errors for Clinton Power Station2023-09-0707 September 2023 Annual Report of Emergency Core Cooling System Evaluation Model Changes and Errors for Clinton Power Station RS-23-080, Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs2023-08-30030 August 2023 Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs IR 05000461/20234202023-08-29029 August 2023 Security Baseline Inspection Report 05000461/2023420 RS-23-081, Request for License Amendment to Revise Technical Specifications Related to Reactor Water Cleanup Isolation Instrumentation2023-08-21021 August 2023 Request for License Amendment to Revise Technical Specifications Related to Reactor Water Cleanup Isolation Instrumentation IR 05000461/20230022023-08-0404 August 2023 Integrated Inspection Report 05000461/2023002 RS-23-085, Supplemental Information Related to Request for Partial Site Release2023-08-0303 August 2023 Supplemental Information Related to Request for Partial Site Release ML23209A8102023-07-28028 July 2023 05000461; Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and Request for Information ML23198A0152023-07-27027 July 2023 License Renewal Application Public Meeting Summary of Pre-Submittal Meeting ML23202A0992023-07-24024 July 2023 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2023004 ML23200A2592023-07-24024 July 2023 June 27, 2023, Clinton Power Station License Renewal Environmental Pre-application Public Meeting-Meeting Summary IR 05000461/20234012023-07-19019 July 2023 Cyber Security Inspection Report 05000461/2023401 ML23194A1662023-07-19019 July 2023 Supplemental Information Needed for Acceptance of Requested Licensing Action Request for Partial Site Release ML23191A8772023-07-11011 July 2023 Operator Licensing Examination Approval Clinton Power Station July 2023 ML23178A2422023-06-28028 June 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III RS-23-077, Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-06-16016 June 2023 Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations RS-23-073, Request for Partial Site Release2023-06-0707 June 2023 Request for Partial Site Release IR 05000461/20230102023-05-26026 May 2023 Triennial Fire Protection Inspection Report 05000461/2023010 RS-23-042, Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling2023-05-25025 May 2023 Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling ML23143A3182023-05-23023 May 2023 Information Meeting (Open House) with a Question and Answer Session to Discuss NRC 2022 End-Of-Cycle Plant Performance Assessment of Clinton Power Station, Unit 1 IR 05000461/20230012023-05-0404 May 2023 Integrated Inspection Report 05000461/2023001 ML23118A3472023-05-0101 May 2023 County, 1 & 2; Nine Mile Point, 2; and Quad Cities, 1 & 2 - Correction of Amendment No. 193 Adoption of TSTF-306, Revision 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration EPID L-2022-LLA-0143 ML23114A2522023-04-28028 April 2023 Request to Use a Provision of a Later Edition of the ASME Boiler & Pressure Vessel Code, Section XI ML23081A0382023-04-25025 April 2023 County, 1 & 2; Nine Mile Point, 2; and Quad Cities, 1 & 2 - Issuance of Amendments to Adopt TSTF-306, Rev. 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration ML23110A3202023-04-21021 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection RS-23-049, Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations2023-03-23023 March 2023 Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations ML23061A1632023-03-0303 March 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch 3 IR 05000461/20220062023-03-0101 March 2023 Annual Assessment Letter for Clinton Power Station, Unit 1 (Report 05000461/2022006) RS-23-039, Request for License Amendment to Revise Technical Specifications Section 3.8.3, Diesel Fuel Oil, Lube Oil, and Starting Air2023-03-0101 March 2023 Request for License Amendment to Revise Technical Specifications Section 3.8.3, Diesel Fuel Oil, Lube Oil, and Starting Air ML23031A2972023-03-0101 March 2023 Issuance of Amendment No. 248 Adoption of TSTF-269, Revision 2 RS-23-045, Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.2032023-02-28028 February 2023 Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.203 ML23039A1852023-02-10010 February 2023 Integrated Inspection Report 05000461/2022004 07201046/2022001 RS-23-003, Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-102023-01-31031 January 2023 Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-10 IR 05000461/20220112023-01-27027 January 2023 Biennial Problem Identification and Resolution Inspection Report 05000461/2022011 RS-23-002, Application to Adopt TSTF-332, ECCS Response Time Testing2023-01-13013 January 2023 Application to Adopt TSTF-332, ECCS Response Time Testing ML23005A0682023-01-0505 January 2023 Notification of NRC Fire Protection Team Inspection Request for Information: Inspection Report 05000461/2023010 ML22341A6042022-12-0808 December 2022 Confirmation of Initial License Examination IR 05000461/20224022022-12-0606 December 2022 Security Baseline Inspection Report 05000461/2022402 RS-22-126, Constellation Energy Generation, LLC - Request to Use Provisions of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI2022-11-30030 November 2022 Constellation Energy Generation, LLC - Request to Use Provisions of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI 2024-02-02
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML23363A0302023-12-29029 December 2023 NRR E-mail Capture - Preliminary RAIs for Clinton Partial Site Release ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23230B1682023-08-18018 August 2023 NRR E-mail Capture - Clinton Power Station, Unit 1, Preliminary Requests for Additional Information (Rais) Related to the Amendment Request to Revise Diesel Generator Starting Air Technical Specifications ML23202A0992023-07-24024 July 2023 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2023004 ML23110A3202023-04-21021 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection ML22312A5362022-11-0808 November 2022 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000461/2023401 ML22255A1402022-09-12012 September 2022 Information Request to Support Upcoming Problem Identification and Resolution (Pi&R) Inspection at Clinton Power Station ML22173A0382022-06-21021 June 2022 NRR E-mail Capture - Request for Additional Information (RAI) Regarding Clinton License Amendment Request for Secondary Containment Design Basis (L-2022-LLA-0055) ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21225A0392021-08-13013 August 2021 NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Request to Revise Degraded Voltage Instrumentation Setpoints ML21204A0152021-07-23023 July 2021 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000461/2021004 ML21190A0192021-07-0808 July 2021 NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21117A0342021-05-0505 May 2021 Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893 ML21071A1882021-03-12012 March 2021 Information Request to Support Upcoming Problem Identification and Resolution Inspection at Clinton Power Station ML21062A0652021-03-0101 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21057A1012021-02-26026 February 2021 NRR E-mail Capture - Clarification of Second Round RAI - Clinton TSTF-505 License Amendment Request ML21049A2572021-02-18018 February 2021 Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237) ML21057A1002021-02-17017 February 2021 NRR E-mail Capture - Second Round RAI - Clinton TSTF-505 License Amendment Request ML21026A0582021-01-25025 January 2021 Notification of NRC Supplemental Inspection (95001) and Request for Information ML20315A0642020-11-0909 November 2020 Notification of NRC Design Bases Assurance Inspection (Programs) and Initial Request for Information: Inspection Report 05000461/2021010 ML20307A6592020-10-27027 October 2020 NRR E-mail Capture - Request for Additional Information Regarding TSTF-505 and 50.69 Applications ML20153A7042020-06-0101 June 2020 NRR E-mail Capture - Preliminary RAI for Fleet Request to Use Alternative OMN-26 ML20135H1972020-05-14014 May 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Extend Safety Relief Valve Test Interval ML20128J8642020-05-0707 May 2020 NRR E-mail Capture - Preliminary RAIs for Clinton Load Tap Changer License Amendment Request ML20105A1082020-04-14014 April 2020 NRR E-mail Capture - Request for Additional Information Regarding Clinton Relief Request I4R-01 ML20091F7892020-03-25025 March 2020 NRR E-mail Capture - Request for Additional Information Regarding Clinton Relief Request I4R-05 ML19330E1772019-11-25025 November 2019 RAI Dresden/Clinton Request for LAR to Modify TSs Following Adoption of TSTF-542 ML19275H1362019-10-0202 October 2019 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879 ML19179A0612019-07-19019 July 2019 Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879 ML18225A2882018-08-13013 August 2018 Ltr. 08/13/18 Clinton Power Station - Request for Information for an NRC Design Bases Assurance Inspection (Program): Implementation of the Environmental Qualification Program Inspection Report 05000461/2018011 (DRS-B.Jose) ML18214A4452018-08-0202 August 2018 NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Revised Alternate Source Term ML18193A9732018-07-12012 July 2018 NRR E-mail Capture - Preliminary Request for Additional Information Regarding Clinton Revised Alternate Source Term ML18088A5662018-03-28028 March 2018 Information Request for an NRC Triennial 10 CFR 50.59 (Evaluation of Changes, Tests and Experiments) Baseline Inspection 05000461/2018010 ML17285B1962017-10-27027 October 2017 Request for Additional Information Regarding Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools. ML17276B7632017-10-0303 October 2017 NRR E-mail Capture - Clinton Power Station - Request for Additional Information Regarding License Amendment Request Related to Reactor Pressure Vessel Water Inventory Control ML17159A6292017-06-0707 June 2017 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection (Mxg) ML17125A3212017-05-0202 May 2017 NRR E-mail Capture - Clinton Power Station, Unit 1 - Request for Additional Information Regarding the Permanent Extension of Leak Rate Testing ML16356A0422016-12-20020 December 2016 Notification of NRC Triennial Fire Protection Baseline Inspection and Request for Information 05000461/2017008 (Dxs) ML16130A6642016-05-11011 May 2016 Request for Additional Information Related to Incorporation of Revised Alternative Source Term (CAC No. MF7336)(RS-16-019) ML16071A2062016-03-15015 March 2016 RAI Regarding License Amendment Request to Revise the Reactor Steam Dome Pressure in Technical Specification 2.1.1, Reactor Core Sls(Cac Nos. MF6640 & MF6644) ML15106A9282015-04-24024 April 2015 Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, :Primary Coolant Sources Outside Containment ML15068A4212015-04-16016 April 2015 Request for Additional Information Regarding Relief Request 13R-11 ML15062A6482015-03-24024 March 2015 Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.2, Primary Coolant Sources Outside Containment ML15055A5942015-02-24024 February 2015 ISI RFI ML13304B4182013-11-0101 November 2013 Request for Additional Information Associated with Near-Term Task Force Recommendation 2.3, Seismic Walkdowns ML13196A3382013-07-15015 July 2013 2013 Decommissioning Fund Report RAI ML13134A0932013-06-0707 June 2013 Request for Additional Information Regarding Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation 2023-09-21
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 March 24, 2015 Mr. Bryan C. Hanson Senior Vice President Exelon Generation Company, LLC President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
CLINTON POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT (TAC NO. MF5291)
Dear Mr. Hanson:
By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise Technical Specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months and adds a provision to apply surveillance requirement 3.0.2 to TS 5.5.2 requirements. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. The U.S. Nuclear Regulatory Commission staff is reviewing the submittals and has determined that additional information is needed to complete its review.
A response to the enclosed request should be provided within 30 days from the date of this letter. This request was discussed with Mr. Tim Byam of your staff on March 23, 2015.
B. Hanson Should you have any questions, please contact me at 301-415-1380 or by email at blake.purnell@nrc.gov.
Sincerely, Blake Purnell, Project Manager Plant Licensing 111-2 and Planning and Analysis Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-461
Enclosure:
Request for Additional Information cc w/encl: Listserv
REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 5.5.2, "PRIMARY COOLANT SOURCES OUTSIDE CONTAINMENT" CLINTON POWER STATION, UNIT 1 DOCKET NO. 50-461 By application dated November 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14321A882), Exelon Generation Company, LLC (the licensee) submitted a request to revise technical specification (TS) 5.5.2, "Primary Coolant Sources Outside Containment," for Clinton Power Station (CPS), Unit 1. The reason for the request is to support the CPS transition from 2-year to 1-year refueling cycles. Currently, TS 5.5.2 requires that an integrated leak test be performed on each system subject to TS 5.5.2 at refueling cycle intervals or less. The proposed change would require this test to be performed at least once per 24 months and adds a provision to apply surveillance requirement (SR) 3.0.2 to TS 5.5.2 requirements. The U.S. Nuclear Regulatory Commission (NRC) staff is reviewing the submittal and has determined that additional information below is needed to complete its review.
RAl-1
Background
The CPS SR 3.0.2 is consistent with the improved standard technical specifications (STS) (see NUREG-1434, Revision 4, "Standard Technical Specifications - General Electric Plants (BWR/6)," Revision 4, April 2012). SR 3.0.2 states, in part:
The specified Frequency for each SR is met if the Surveillance is performed within 1.25 times the interval specified in the Frequency, as measured from the previous performance or as measured from the time a specified condition of the Frequency is met.
On August 23, 2012, the NRC issued Regulatory Issue Summary (RIS) 2012-10, "NRC Staff Position on Applying Surveillance Requirements 3.0.2 and 3.0.3 to Administrative Controls Program Tests," which states:
[An NRC] review determined that restructuring TS chapters during the development of improved [STS] resulted in unintended consequences when Section 3.0, "Surveillance Requirement Applicability," provisions were made applicable to Section 5.0 TS. Specifically, applying STS rules of usage would prohibit licensees from using the SR 3.0.2 and SR 3.0.3 allowances in Section 5.0 TS, unless the Section 5.0 TS tests are associated with a TS SR.
Enclosure
The RIS further states:
SR 3.0.2 and SR 3.0.3 cannot be applied to TS 5.5 for tests that are not associated with a TS SR. Therefore, programmatic test frequencies cannot be extended in accordance with SR 3.0.2, and programmatic test frequencies cannot be delayed in accordance with SR 3.0.3, when there is no associated requirement from SR 3.0.1 for program tests to be both performed and met.
Using SR 3.0.2 to extend a program test or using SR 3.0.3 to delay declaring a missed program test "not met" without having a TS SR related to the program test would result in noncompliance with TS or nonconformance with other regulatory requirements because these SR allowances cannot be applied to non-SR tests.
The licensee's application requests that SR 3.0.2 be made applicable to TS 5.5.2 requirements.
The applications states:
Additionally, to be consistent with normal surveillance requirements that allow for a 25% extension of the frequency in accordance with SR 3.0.2, the SR 3.0.2 allowance is also being proposed to be applied to TS 5.5.2. This is acceptable since TS 5.5.2 testing is considered a surveillance requirement. As stated in TSTF [Technical Specification Task Force]-299-A, since SR 3.0.2 only applies to TS [limiting condition for operation] Sections 3.0 through 3.9, it is appropriate to add the explicit SR 3.0.2 statement to TS 5.5.2. The application of the SR 3.0.2 allowance to CPS TS 5.5.2 ensures CPS consistency with the [improved STS]
5.5.2 provided in [NUREG-1434, Revision 4].
The purpose of TSTF-299 is to allow a 25 percent extension of a TS administrative control program frequency, similar to the way SR 3.0.2 is applied to SRs. The concern is that SR 3.0.2 is not applicable to programs which do not have an associated SR. The NRC staff is working on correcting the STS in this regard.
Request Revise the wording of the proposed change to address the concern described above.
ML15062A648 *via e-mail OFFICE LPL3-2/PM LPL3-2/LA STSB/BC* LPL3-2/BC LPL3-2/PM NAME BPurnell SRohrer RElliott TTate BPurnell DATE 3/4/15 3/4/15 3/2/15 3/24/15 3/24/15