ML23158A061
| ML23158A061 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 06/07/2023 |
| From: | David Helker Constellation Energy Generation |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| Download: ML23158A061 (1) | |
Text
200 Exelon Way Kennett Square, PA 19348 www.constellation.com 10 CFR 50.90 10 CFR 50.91(a)(5)
June 7, 2023 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Calvert Cliffs Nuclear Power Plant, Units 1 and 2 Renewed Facility Operating License Nos. DPR-53 and DPR-69 NRC Docket Nos. 50-317 and 50-318
SUBJECT:
Withdrawal of Emergency License Amendment Request - One-Time Extension of the Control Room Emergency Ventilation System (CREVS) Technical Specification REFERENCES 1. Letter from D. P. Helker (Constellation) to U.S. Nuclear Regulatory Commission, Emergency License Amendment Request - One-Time Extension of the Control Room Emergency Ventilation System (CREVS)
Technical Specification, dated June 2, 2023 (ADAMS Accession No. ML23153A098) 2.
Electronic mail from S. Goetz (U.S. Nuclear Regulatory Commission) to W.
Para (Constellation), Calvert Cliffs - Request for Additional Information Re:
Revision to TS 3.7.8," dated June 4, 2023 (EPID: L-2023-LLA-0076) 3.
Letter from D. P. Helker (Constellation) to U.S. Nuclear Regulatory Commission, Response to Request for Additional Information by the Office of Nuclear Reactor Regulation to support Review of an Emergency License Amendment Request - One-Time Extension of the Control Room Emergency Ventilation System (CREVS) Technical Specification, dated June 4, 2023 (ADAMS Accession No. ML23155A001)
By letter dated June 2, 2023 (Reference 1) Constellation Energy Generation, LLC (CEG),
requested a change to the Technical Specifications (TS), Appendix A of Renewed Facility Operating License Nos. DPR-53 and DPR-69 for Calvert Cliffs Nuclear Power Plant, Units 1 and 2 (CCNPP) under an emergency basis pursuant to 10 CFR 50.91(a)(5). The proposed amendment requested a one-time extension to TS 3.7.8 Control Room Emergency Ventilation System (CREVS) Action C.1 Completion Time (CT), from seven (7) days to 16 days, for one train of the control room emergency ventilation system inoperable due to the emergency power supply for the train being inoperable.
By letter dated June 4, 2023 (Reference 3) CEG provided additional information in response to the NRC Staff requests for additional information (Reference 2).
Withdrawal of Emergency License Amendment Request for One-Time Extension of the CREVS Technical Specification Docket Nos. 50-317 and 50-318 June 7, 2023 Page 2 Subsequently, corrective maintenance and testing was completed which restored the 1A Diesel Generator to Operable and the affected CREVS Limiting Condition for Operation (LCO) was exited at 04:25 hours on June 7, 2023. As a result, the extended Completion Time for CREVS is no longer required. CEG hereby withdraws its Reference 1 Emergency License Amendment Request for CCNPP.
There are no regulatory commitments contained in this submittal.
Should you have any questions concerning this submittal, please contact Ms. Wendi E. Para at (267) 533-5208.
I declare under penalty of perjury that the foregoing is true and correct. Executed on the 7th day of June 2023 Respectfully, David P. Helker Sr. Manager - Licensing Constellation Energy Generation, LLC cc:
USNRC Region I, Regional Administrator USNRC Senior Resident Inspector, Calvert Cliffs Nuclear Power Plant USNRC Project Manager, NRR - Calvert Cliffs Nuclear Power Plant S. Seaman, State of Maryland