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MONTHYEARML11222A0202011-08-0808 August 2011 License Amendment Request: Diesel Generator Surveillance Requirement 3.8.1.11 Revision Project stage: Request ML1124404592011-09-0101 September 2011 Acceptance Review of Calvert Cliffs Amendment Application (TAC Nos. ME6831-ME6832) Project stage: Acceptance Review ML1130703992011-11-22022 November 2011 Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11 - Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2 Project stage: RAI ML12012A2182012-01-11011 January 2012 Responses to Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11 Project stage: Response to RAI ML1206004592012-03-0808 March 2012 Request for Additional Information Diesel Generator Technical Specification Surveillance Requirement 3.8.1.11 - Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2 Project stage: RAI ML12132A0862012-05-0707 May 2012 Responses to Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11 Project stage: Response to RAI ML12202A0132012-07-18018 July 2012 Revision to a Response to Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11 Project stage: Response to RAI ML12214A2752012-08-22022 August 2012 Amendment Regarding Diesel Generator Surveillance Requirement 3.8.1.11 Project stage: Other 2012-01-11
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Category:Letter
MONTHYEARIR 05000317/20230042024-02-0101 February 2024 Integrated Inspection Report 05000317/2023004 and 05000318/2023004 ML24029A0102024-01-29029 January 2024 Request for Information and Notification of Conduct of IP 71111.21.N.04, Age-Related Degradation, Reference Inspection Report 05000317/2024010 and 05000318/2024010 ML24003A8872024-01-19019 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0033 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) 05000318/LER-2023-004, Submittal of LER 2023-004-00 for Calvert Cliffs Nuclear Power Plant, Unit 2, Submittal of Automatic Reactor Trip from Reactor Protection System Actuation Due to Loss of Unit Service Transformer2024-01-16016 January 2024 Submittal of LER 2023-004-00 for Calvert Cliffs Nuclear Power Plant, Unit 2, Submittal of Automatic Reactor Trip from Reactor Protection System Actuation Due to Loss of Unit Service Transformer ML24011A0732024-01-11011 January 2024 Proposed Alternative to the Requirements for Repair/Replacement of Saltwater (SW) System Buried Piping 05000318/LER-2023-002, Forward LER 2023-002-00 for Calvert Cliffs Nuclear Power Plant, Unit 2, Automatic Reactor Trip from Reactor Protection System Actuation Due to Loss of Unit Service Transformer2024-01-0808 January 2024 Forward LER 2023-002-00 for Calvert Cliffs Nuclear Power Plant, Unit 2, Automatic Reactor Trip from Reactor Protection System Actuation Due to Loss of Unit Service Transformer 05000318/LER-2023-003, Forward LER 2023-003-00 for Calvert Cliffs Nuclear Power Plant, Unit 2, Manual Actuation of Auxiliary Feedwater System Due to 22 Steam Generator Feedwater Pump Trip2024-01-0808 January 2024 Forward LER 2023-003-00 for Calvert Cliffs Nuclear Power Plant, Unit 2, Manual Actuation of Auxiliary Feedwater System Due to 22 Steam Generator Feedwater Pump Trip ML24005A0222024-01-0505 January 2024 Revised Steam Generator Tube Inspection Reports ML23304A0642024-01-0202 January 2024 Issuance of Amendment No. 349 to Modify the Long-Term Coupon Surveillance Program RS-23-125, Request for Exemption from 10 CFR 2.109(b)2023-12-0707 December 2023 Request for Exemption from 10 CFR 2.109(b) ML23331A2992023-11-27027 November 2023 Submittal of Condition Prohibited by Technical Specifications Due to Failure to Sample Diesel Generator Fuel Oil Storage Tank IR 05000317/20230102023-11-20020 November 2023 Biennial Problem Identification and Resolution Inspection Report 05000317/2023010 and 05000318/2023010 ML23318A4722023-11-14014 November 2023 Supplement to License Amendment Request to Adopt TSTF-59-A ML23317A1032023-11-10010 November 2023 Supplemental Information Letter for Part 73 Exemption Request - Responses to Request for Confirmatory Information ML23317A1192023-11-10010 November 2023 Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums ML23310A0442023-11-0707 November 2023 Project Manager Assignment IR 05000317/20230402023-11-0202 November 2023 95001 Supplemental Inspection Report 05000317/2023040 and Follow-Up Assessment Letter IR 05000317/20230032023-11-0101 November 2023 Integrated Inspection Report 05000317/2023003 and 05000318/2023003 IR 05000317/20230902023-10-26026 October 2023 Final Significance Determination of a White Finding with Assessment Follow-Up and Notice of Violation; Inspection Report 05000317/2023090 ML23289A1202023-10-16016 October 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation 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 RS-23-108, Proposed Alternative for Examinations of Examination Categories B-B, B-D, and C-A Steam Generator Pressure Retaining Welds and Full Penetration Welded Nozzles2023-10-11011 October 2023 Proposed Alternative for Examinations of Examination Categories B-B, B-D, and C-A Steam Generator Pressure Retaining Welds and Full Penetration Welded Nozzles RS-23-105, Proposed Alternative for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections2023-10-10010 October 2023 Proposed Alternative for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections ML23279A1202023-10-0606 October 2023 Response to NRC Inspection Report and Preliminary White Finding IR 05000317/20230502023-09-29029 September 2023 Special Inspection Report 05000317/2023050 and Preliminary White Finding and Apparent Violation ML23272A1032023-09-29029 September 2023 Condition Prohibited by Technical Specifications Due to Inoperable Nuclear Instrumentation at Very Low Power IR 05000317/20234012023-09-18018 September 2023 Cyber Security Inspection Report 05000317/2023401 and 05000318/2023401 ML23254A0012023-09-0505 September 2023 Registration of Use of Casks to Store Spent Fuel IR 05000317/20230052023-08-31031 August 2023 Updated Inspection Plan for Calvert Cliffs Nuclear Power Plant, Units 1 and 2 (Report 05000317/2023005 and 05000318/2023005) ML23158A1952023-08-30030 August 2023 R. E. Ginna - Issuance of Amendments to Adopt TSTF-273-A, Revision 2, Safety Function Determination Program Clarifications ML23241A8412023-08-29029 August 2023 Response to Request for Additional Information - Proposed Alternative to the Requirements for Repair/Replacement of Saltwater (SW) System Buried Piping ML23240A3872023-08-28028 August 2023 Senior Reactor and Reactor Operator Initial License Examinations ML23151A3472023-08-21021 August 2023 Issuance of Amendments to Adopt TSTF-295-A, Modify Note 2 to Actions of PAM Table to Allow Separate Condition Entry for Each Penetration ML23219A1662023-08-16016 August 2023 Request for Additional Information Regarding Proposed Alternative to the Requirements for Repair/Replacement of Saltwater (SW) System Buried Piping (EPID: L-2023-LLR-0006) - Non-proprietary ML23228A1002023-08-15015 August 2023 Notification of Readiness for NRC 95001 Inspection ML23188A0402023-08-0808 August 2023 Issuance of Amendment Nos. 346 and 324 Adoption of TSTF-577, Revised Frequencies for Steam Generator Tube Inspections, Revision 1 ML23214A1572023-08-0707 August 2023 Correction to the Renewed Facility Operating License Page 3 in Amendment No 345 IR 05000317/20230022023-08-0303 August 2023 Integrated Inspection Report 05000317/2023002 ML23188A0512023-07-13013 July 2023 Correction to the Renewed Facility Operating License Pages in Amendment Nos. 336 and 314 ML23186A0372023-07-13013 July 2023 Correction to the Renewed Facility Operating License Pages in Amendment Nos. 340 and 318 IR 05000317/20233012023-07-12012 July 2023 Initial Operator Licensing Examination Report 05000317/2023301 and 05000318/2023301 IR 05000317/20230122023-07-10010 July 2023 Commercial Grade Dedication Report 05000317/2023012 and 05000318/2023012 ML23180A2362023-06-29029 June 2023 Correction of Errors on Technical Specification Pages RS-23-083, Withdrawal - Proposed Alternatives Related to the Steam Generators2023-06-27027 June 2023 Withdrawal - Proposed Alternatives Related to the Steam Generators ML23156A6752023-06-20020 June 2023 Request for Withholding Information from Public Disclosure for Proposed Alternative to the Requirements for Repair/Replacement of Saltwater System Buried Piping 2024-02-01
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George H. Gellrich Calvert Cliffs Nuclear Power Plant, LLC Vice President 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 410.495.5200 410.495.3500 Fax CENG.
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%0Energyý CALVERT CLIFFS NUCLEAR POWER PLANT July 18, 2012 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos. I & 2; Docket Nos. 50-317 & 50-318 Revision to a Response to Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11
REFERENCES:
(a) Letter from Mr. G. H. Gellrich (CCNPP) to Document Control Desk (NRC), dated August 8, 2011, License Amendment Request: Diesel Generator Surveillance Requirement 3.8.1.11 Revision (b) Letter from Mr. G. H. Gellrich (CCNPP) to Document Control Desk (NRC), dated January 11, 2012, Responses to Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11 In Reference (a), Calvert Cliffs Nuclear Power Plant, LLC submitted a license amendment request to revise Technical Specification Surveillance Requirement 3.8.1.11 by revising the required power factor value to be achieved by the diesel generators during conduct of the surveillance test. In Reference (b),
Calvert Cliffs responded to the Nuclear Regulatory Commission's request for additional information (RAI) to support their review of Calvert Cliffs' license amendment request. Attachment (1) provides a revision to our response to RAI #2 which replaces the response originally provided for RAI #2 in Reference (b). The revision is denoted by a revision bar in the right-hand margin.
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Document Control Desk July 18, 2012 Page 2 Should you have questions regarding this matter, please contact Mr. Douglas E. Lauver at (410) 495-5219.
Very truly yours, STATE OF MARYLAND
- TO WIT:
COUNTY OF CALVERT I, George H. Gellrich, being duly sworn, state that I am Vice President - Calvert Cliffs Nuclear Power Plant, LLC (CCNPP), and that I am duly authorized to execute and file this License Amendment Request on behalf of CCNPP. To the best of my knowledge and belief, 'the statements contained in this document are true and correct. To the extent that these statements are not based on my personal knowledge, they are based upon information provided by other CCNPP employees and/or consultants. Such information has been reviewed in accordance with company practice and I believe it to be reliable.
Subscribed and sworn before me. a Notary Puic in and for the State of Maryland and County of
- a. ,this /&ý day of ,2012.
WITNESS mI'y Hand and Notarial Seal: (fa, We //- "ý
/ Notary Public My Commission Expires:
7//j /,J 6J Date GHG/KLG/bjd
Attachment:
(1) Calvert Cliffs Revised Response to NRC Request for Additional Information #2 cc: N. S. Morgan, NRC Resident Inspector, NRC W. M. Dean, NRC S. Gray, DNR
ATTACHMENT (1)
CALVERT CLIFFS REVISED RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION #2 Calvert Cliffs Nuclear Power Plant, LLC July 18, 2012
ATTACHMENT (1)
CALVERT CLIFFS REVISED RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION #2 This response to Request for Additional Information (RAI) #2 replaces our previous response to RAI #2 that was submitted on January 11, 2012 (Reference 1).
NRC RAI #2:
SR 3.8.1.11 requires testingfor > 60 minutes to ensure the DG's ability to perform its safety function.
However, operating experience at some plants with 24-hour surveillance times has identified some weaknesses in the DG systems which would not have been identified if the SR was performedfor a lesser duration. Regulatory Guide 1.9 also recommends testing of emergency DGs for 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> at nominal rating and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> at the short term overload capability.
Providejustficationfor not adopting the currentregulatoryguidancefor DG testing.
CCNPP Response #2:
Although not part of Calvert Cliffs' Technical Specifications, there are times when the DGs are run for greater than a one hour period. They include:
" Performances of a four hour run of each DG approximately every two years. This is generally done following performance of a major engine inspection of the DGs.
" Performance of a bearing run-in on the IA DG approximately every eight years. This run requires approximately 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br /> of operation at various loads, up to full load.
" Performance of a multi-hour run when a main bearing on one of the three Fairbanks Morse DGs is disturbed.
- Performances of a four hour run if any of the Fairbanks Morse DGs are started without pre-lubrication.
" Performance of an extended run following DG maintenance as part of the post-maintenance testing plan. The test runs and durations are determined based on the scope and nature of the maintenance performed. An extended run provides the opportunity to identify any latent failure mechanism that may be introduced during maintenance. In fact, following recent maintenance, one of the DGs was run for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> as part of the post-maintenance testing.
While we believe there is a benefit to performing appropriate testing following DG maintenance, including endurance runs, we also consider that the testing scope and duration should be based on the maintenance activities performed. This could result in testing up to a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> duration run, as well as shorter runs.
On several occasions the Surveillance Requirements for the DGs have been reviewed and approved, by the Nuclear Regulatory Commission. This includes Reference 2, which approved a revised electrical plant distribution configuration and the Surveillance Requirements and Limiting Conditions for Operation for our new safety related DG (DG IA). Later, during Calvert Cliffs' transition to Improved Technical Specifications, the DG Surveillance Requirements were again reviewed, but not changed (Reference 3).
Note that this amendment request is to correct an existing, non-conservative error by aligning the power factor value listed in Surveillance Requirement 3.8.1.11 to the power factor contained in the design calculation. We are not seeking a voluntary change to the licensing basis; rather we have submitted this change in accordance with Reference 4.
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ATTACHMENT (1)
CALVERT CLIFFS REVISED RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION #2 REFERENCES
- 1. Letter from Mr. G. H. Gellrich (CCNPP) to Document Control Desk (NRC), dated January 11, 2012, Responses to Request for Additional Information Regarding Diesel Generator Surveillance Requirement 3.8.1.11
- 2. Letter from D. G. McDonald (NRC) to C. H. Cruse (CCNPP), dated April 2, 1996, Issuance of Amendments for Calvert Cliffs Nuclear Power Plant (Amendments 214, Unit I and 191, Unit 2)
- 3. Letter from A. W. Dromerick (NRC) to C. H. Cruse(CCNPP), dated May 4, 1998, Issuance of Amendments for Calvert Cliffs Nuclear Power Plant (Amendments 227, Unit I and 201, Unit 2.)
- 4. NRC Administrative Letter 98-10, dated December 29, 1998, Dispositioning of Technical Specifications That are Insufficient to Assure Plant Safety 2