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MONTHYEARML18256A0522018-09-24024 September 2018 Plants, Units 1 and 2 - Supplemental Information Needed for Acceptance of Requested Licensing Action Risk-Informed Approach to Closure for Generic Safety Issue-191 (EPID L-2018-LLA-0222)and Project stage: Acceptance Review ML18283A0342018-10-10010 October 2018 Supplement to Final Response to Generic Letter 2004-02, Dated August 13, 2018 Project stage: Request ML18304A1392018-10-30030 October 2018 Acceptance of Requested Licensing Action Risk-Informed Approach to Closure for Generic Safety Issue-191 (EPID L-2018-LLA-0222 and EPID L-2018-LLE-0013) Project stage: Acceptance Review ML18345A1942018-12-21021 December 2018 Plants, Units 1 and 2 - Regulatory Audit Risk-Informed Approach to License Amendment Request for Closure of Generic Safety Issue-191 Project stage: Other ML19070A0192019-03-11011 March 2019 Request for Additional Information Regarding Exemption Request from 10CFR50.46(A)(1) to Support Resolution of GSI-191 Project stage: RAI ML19158A0752019-06-0707 June 2019 Revised: Final Response to Generic Letter 2004-02 Project stage: Request ML19205A2872019-07-19019 July 2019 Notification of Change in Review Schedule (Epids L-2018-LLA-0222 and L-2018-LLE-0013) Project stage: Other ML19261B2202019-09-18018 September 2019 Request for Additional Information Regarding Final Response to Generic Letter 2004-02 Project stage: RAI ML19277D1032019-10-0303 October 2019 Response to Request for Additional Information Revised - Final Response to Generic Letter 2004-02 Project stage: Response to RAI ML19294A0562019-10-21021 October 2019 Withdrawal of License Amendment Request for Calvert Cliffs Nuclear Power Plant, Units 1 and 2 - Final Response to Generic Letter 2004-02 Project stage: Withdrawal ML19295E7142019-10-28028 October 2019 L-2018-LLA-0222 and L-2018-LLE-0013 -Withdrawal FRN 2019-10-22 Project stage: Other ML19295E7122019-10-28028 October 2019 Withdrawal of Amendment and Exemption Requests (Epids L-2018-LLA-0222 and L-2018 LLE-0013) Project stage: Withdrawal 2019-10-28
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Category:E-Mail
MONTHYEARML24250A1062024-09-0606 September 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24197A0162024-07-12012 July 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591 ML24108A1352024-05-20020 May 2024 Email to Christian Williams Re Decision on the Exemption Request for Calvert Cliffs ML24108A1312024-05-15015 May 2024 Email to Christian Williams Re Availability of Environmental Assessment for the Calvert Cliffs Exemption ML24131A0612024-05-10010 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) NRC-2024-0085, Response from State of MD Regarding Review of EA for Calvert Cliffs Exemption Request2024-05-0909 May 2024 Response from State of MD Regarding Review of EA for Calvert Cliffs Exemption Request ML24122B5072024-05-0101 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-591, Revision 0 ML24131A1212024-04-29029 April 2024 Email to State of MD Requesting Review of the EA for Calvert Cliffs Exemption Request ML24012A0492024-01-11011 January 2024 Request for Additional Information Regarding Final Response to Generic Letter 2004-02 ML23311A1682023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections (L-2023-LLR-0053 and L-2023-LLR-005 ML23311A1692023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Exam Categories B-B, B-D, and C-A SG Pressure Retaining Welds and Full Penetration Welded Nozzles (L-2023-LLR-0055 and L-2023-LLR-00 ML23304A0152023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Calvert Cliffs 1 & 2 - Exemption from Security Rule (L-2023-LLE-0033) ML23181A0732023-06-30030 June 2023 NRR E-mail Capture - Acceptance Review for Calvert Cliffs TSTF-59A ML23160A0222023-06-0606 June 2023 NRR E-mail Capture - Calvert Cliffs - Long Term Coupon Surveillance Program RAI ML23156A0102023-06-0404 June 2023 NRR E-mail Capture - Calvert Cliffs - RAI License Amendment Request for Emergency Desiel Generator ML23080A0672023-03-21021 March 2023 NRR E-mail Capture - Acceptance Review for Calvert Cliffs Unit 1 - LAR to Modify the Long-Term Coupon Surveillance Program ML23080A1002023-03-21021 March 2023 NRR E-mail Capture - Acceptance Review for Calvert Cliffs Repair Replacement of Saltwater System Buried Piping ML23026A1332023-01-26026 January 2023 NRR E-mail Capture - Acceptance Review for Calvert Cliffs Deletion of License Condition for Decommissioning Trust LAR ML22354A2622022-12-20020 December 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Request to Use Certain Provisions of the 2019 Edition of the ASME BPV Code, Section XI ML22342B1462022-11-21021 November 2022 NRR E-mail Capture - Acceptance Review for TSTF 295A ML22325A0052022-11-18018 November 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-273-A, Revision 2 ML22255A0132022-09-0909 September 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood, Byron, Calvert Cliffs, Ginna - License Amendment Request to Adopt TSTF-577 ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22271A0772022-05-0606 May 2022 NRR E-mail Capture - Final RAIs 9.1.2021 Constellation Relief Request ML22129A0132022-05-0606 May 2022 NRR E-mail Capture - Draft RAIs for Requests for Alternatives I4R-17, I4R-23, ISI-05-018, I6R-10 ML22091A2392022-04-0101 April 2022 NRR E-mail Capture - Calvert Cliffs - Formal RAI for Proposed Alternative for Examinations of Certain Pressurizer Welds ML22091A0852022-04-0101 April 2022 NRR E-mail Capture - Braidwood and Byron - Final RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036) ML22091A2402022-03-23023 March 2022 NRR E-mail Capture - (External_Sender) Salem Generating STATION-INCIDENTAL Take of Atlantic Sturgeon Collected on 03/22/2022 ML22075A1912022-03-16016 March 2022 NRR E-mail Capture - Acceptance for Review of Proposed Alternative Repair Method for Buried Class 3 Saltwater System Piping ML22088A1562022-03-0202 March 2022 NRR E-mail Capture - Byron, Braidwood, Calvert Cliffs, and Ginna - Non-acceptance of Application to Revise Technical Specifications 5.6.5.b, the Core Operating Limits Report (COLR) ML22059B0602022-02-28028 February 2022 Change to Review Schedule Regarding Proposed Alternative for Various Pressurizer Welds ML22060A0172022-02-23023 February 2022 NRR E-mail Capture - Calvert Cliffs Nuclear Power Plant, Units 1 and 2 - Withdraw of Draft RAI Regarding Proposed Alternative for Various Pressurizer Welds 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 ML21281A1402022-01-14014 January 2022 Acceptance for Review of Proposed Alternative ISI-05-018 for Examinations of Steam Generator Pressure Retaining Welds and Full Penetration Welded Nozzles ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21295A5712021-10-22022 October 2021 NRR E-mail Capture - Acceptance for Review of Proposed Alternative ISI-05-019 for Pressure Testing of Certain Portions of ASME Section XI Class 2 Auxiliary Feedwater Piping ML21287A0322021-10-13013 October 2021 Request for Additional Information Re Proposed Alternative for Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds ML21286A5902021-10-0505 October 2021 Acceptance for Review of Proposed Alternative ISI-05-017 for Examinations of Examination Category C-B Steam Generator ML21287A0932021-10-0505 October 2021 Request for Additional Information: Calvert Cliffs 1 & 2 LAR to Revise Spent Fuel Pool Cooling - Shutdown Cooling Systems Licensing Basis (EPID L-2021-LLA-0112) (Email) ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21214A0202021-08-0909 August 2021 License Amendment Request to Change Spent Fuel Pool Cooling Design Basis ML21215A3502021-08-0303 August 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-554 ML21201A0482021-07-19019 July 2021 Acceptance of Requested Licensing Action to Change Spent Fuel Pool Cooling Design Basis ML21180A1562021-06-28028 June 2021 Request for Additional Information Regarding License Amendment Request Concerning Containment Sump ML21152A1232021-06-0101 June 2021 Acceptance for Review of Proposed Alternative ISI-05-016 Involving Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (EPID L-2021-LLR-0037) (Email) ML21154A0132021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0112021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0142021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21117A0442021-04-26026 April 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting 2024-09-06
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From: Marshall, Michael To: Villar, Enrique:(GenCo-Nuc) (Enrique.Villar@exeloncorp.com)
Cc: James Danna (James.Danna@nrc.gov)
Subject:
CALVERT CLIFFS NUCLEAR POWER PLANT, UNITS 1 AND 2 - NOTIFICATIONN OF CHANGE IN REVIEW SCHEDULE (EPIDS L-2018-LLA-0222 AND L-2018-LLE-0013)
Date: Friday, July 19, 2019 8:32:00 AM Hello Rick, By letter dated August 13, 2018 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML18226A189), as supplemented by letter dated October 10, 2018 (ADAMS Accession No. ML18283A034), and June 7, 2019 (ADAMS Accession No. ML19158A075), Exelon Generation Company, LLC submitted an application for a proposed amendment and exemption for Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2. The amendment would modify the Calvert Cliffs licensing bases, including the affected portions of the Technical Specifications and Updated Final Safety Analysis Report. Specifically, the amendment would allow the use of a risk-informed approach to address safety issues discussed in U.S. Nuclear Regulatory Commission (NRC) Generic Safety Issue-191, Assessment of Debris Accumulation on PWR [Pressurized-Water Reactor] Sump Performance. The exemption would allow the use of a risk-informed evaluation to demonstrate that the emergency core cooling system and containment spray systems will operate with a high probability following a loss of coolant accident when considering the impacts and effects of debris accumulation on emergency recirculation sump strainer in recirculation mode following a loss of coolant accident.
In an email dated October 30, 2018 (ADAMS Accession No. ML18304A139), the NRC staff informed Exelon that the review of the amendment and exemption requests would be completed by the end of October 2019. The NRC staff is changing the completion date of the amendment request to March 31, 2020 and the completion date of the exemption request to December 31, 2019. These changes are being made because Exelons second supplement was provided to the NRC in June 2019 - not April 2019. During a January 2019 regulatory audit of the amendment and exemption requests, the Exelon representatives identified the need for a second supplement to make changes to the amendment request. Additionally, the Exelon representatives stated that issues arising from the discussion of the topics and questions attached to the audit plan would be addressed in the second supplement. Both the Exelon representatives and NRC staff agreed during the audit that a second supplement would minimize level-of-effort by potentially reducing the number of request for information that the staff would prepare, and that Exelon would need to provide a separate response. During the audit the NRC staff informed the Exelon representatives that the second supplement would need to be provided in April 2019 to avoid impacting the original scheduled completion date for the reviews. Because the second supplement was received after April 2019, the completion date for both reviews had to be changed.
The estimated level-of-effort that was included in the email dated October 30, 2018 has not changed.
If there are additional challenges or delays that would cause changes to the new forecasted completion date or significant changes in the forecasted hours, the reasons for the changes, along with the new estimates, will be communicated to Exelon through written
correspondence from the assigned project manager.
If you have any questions regarding these changes in completion dates, please contact me at (301) 415-2871 or Michael.Marshall@nrc.gov.
Michael L. Marshall, Jr., Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation 301-415-2871 Docket Nos. 50-317 and 50-318