RS-23-078, Supplement to License Amendment Request to Revise Technical Specification 3.1.4, Control Rod Scram Times
| ML23167C159 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 06/16/2023 |
| From: | Lueshen K Constellation Energy Generation |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| RS-23-078 | |
| Download: ML23167C159 (1) | |
Text
4300 Winfield Road Warrenville, IL 60555 630 657 2000 Office June 16, 2023 10 CFR 50.90 RS-23-078 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos. 50-237 and 50-249
Subject:
Supplement to License Amendment Request to Revise Technical Specification 3.1.4, "Control Rod Scram Times"
Reference:
Letter from P.R. Simpson (Constellation Energy Generation, LLC) to U.S. NRC, "License Amendment Request to Revise Technical Specification 3.1.4, "Control Rod Scram Times," dated August 25, 2022 (ADAMS Accession No. ML22237A233)
In the referenced letter Constellation Energy Generation, LLC (CEG) requested an amendment to Renewed Facility Operating License Nos. DPR-19 and DPR-25 for Dresden Nuclear Power Station (DNPS), Units 2 and 3, respectively. The proposed change revises control rod scram time limits in DNPS Technical Specifications Table 3.1.4-1 to regain margin for American Society of Mechanical Engineers (ASME) reactor pressure vessel (RPV) overpressure.
The referenced letter stated that DNPS intended to implement the proposed amendment within 60 days of approval. However, certain procedure changes would be more effectively implemented during the fall 2023 outage instead of prior to the outage. Therefore, DNPS respectfully requests that the implementation timeframe be changed to during the fall 2023 refueling outage. The implementation applies to both DNPS Unit 2 and Unit 3.
CEG has reviewed the information supporting the finding of no significant hazards consideration, and the environmental consideration that were previously provided to the NRC.
The additional information provided in this submittal does not affect the bases for concluding that the proposed license amendment does not involve a significant hazards consideration. In addition, the information provided in this submittal does not affect the bases for concluding that neither an environmental impact statement nor an environmental assessment needs to be prepared in connection with the proposed amendment.
U.S. Nuclear Regulatory Commission June 16, 2023 Page 2 CEG is notifying the State of Illinois of this supplement to a previous application for a change to the operating license by sending a copy of this letter and its attachments to the designated State Official in accordance with 10 CFR 50.91, "Notice for public comment; State consultation,"
paragraph (b).
There are no regulatory commitments included in this letter.
Should you have any questions concerning this letter, please contact Ms. Linda Palutsis at 630-657-2821.
I declare under penalty of perjury that the foregoing is true and correct. Executed on the 16th day of June 2023.
Respectfully, Kevin Lueshen Sr. Manager Licensing Constellation Energy Generation, LLC cc:
Regional Administrator - NRC Region III NRC Senior Resident Inspector - Dresden Nuclear Power Station Illinois Emergency Management Agency - Department of Nuclear Safety Lueshen, Kevin Digitally signed by Lueshen, Kevin Date: 2023.06.16 15:05:49 -05'00'