RBG-48003, Neutron Absorbing Material Monitoring Program Update
| ML20055F670 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 02/24/2020 |
| From: | Schenk T Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RBG-48003 | |
| Download: ML20055F670 (2) | |
Text
~Ent~
Entergy Operations, Inc.
River Bend Station 5485 U.S. Highway 61 N St. Francisville, LA 70775 Tel 225-381-4177 Timothy A. Schenk Manager, Regulatory Assurance RBG-48003 February 24, 2020 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Subject:
River Bend Station Neutron Absorbing Material Monitoring Program Update River Bend Station - Unit 1 NRC Dqcket No. 50-458 Renewed Facility Operating License No. NPF-47 I
References:
- 1) Entergy Operations, Inc. (Entergy) letter to U. S. Nuclear Regulatory Commission (NRC),
11License Renewal Application," (ADAMS Accession No. ML17153A282), dated May 25, 2017
- 2) Entergy letter to NRC, "License Renewal Application Update - Neutron Absorbing Material Monitoring Program, 11 (ADAMS Accession No. ML18046A044), dated February 15, 2018
- 3) Entergy letter to NRC, "License Renewal Application Update - Neutron Absorbing Material Mon_itoring Program - Supplement, 11 (ADAMS Accession No. ML18081A018), dated March 22, 2018
- 4) NRC Safety Evaluation Report, "River Bend Station, Unit 1, License Renewal Safety Evaluation Report," (ADAMS Accession No. ML18212A151), dated August 16, 2018
- 5) NRC Letter to Entergy, "River Bend Station, Unit 1 - Issuance of Amendment No. 201 RE: Change to the Neutron Absorbing Material Credited in Spent Fuel Pool for Criticality Control," (ADAMS Accession No. ML19357A009), dated December 31, 2019
RBG-48003 Page 2 of 2 In Reference 1, Entergy submitted an application for renewal of the Operating License for River Bend Station (RBS) for an additional 20 years beyond the current expiration date. The license renewal application (LRA) credited the Boraflex Monitoring Program, described in Section B.1.3, for managing the aging of Boraflex during the period of extended operation.
In References 2 and 3, Entergy updated the LRA to include a Neutron Absorbing Material Monitoring Program and remove the Boraflex Monitoring Program and included a commitment to install aluminum boron-carbide neutron absorbing material before the period of extended operation, and to submit a letter to the NRC, within 60 days following installation of the new neutron absorbing material, confirming that the Boraflex material is no longer credited for neutron absorption.. This commitment is also listed in Appendix A of Reference 4.
On February 20, 2020, RBS completed the installation of the new neutron absorbing material and implemented all required licensing changes listed in Reference 5. Boraflex is no longer credited in the RBS Spent Fuel Pool Criticality Safety Analysis or Licensing Basis.
This letter contains no new regulatory commitments. Should you have any questions or require additional information, please contact Tim Schenk at 225-381-4177.
Respectfully, Tim Schenk TAS/baj cc:
NRC Region IV Regional Administrator N RC Senior Resident Inspector RBS NRC Project Manager RBS