WBL-22-061, Unit 2 - Emergency Plan Implementing Procedure Revisions
| ML22290A028 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 10/17/2022 |
| From: | Anthony Williams Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| WBL-22-061 | |
| Download: ML22290A028 (2) | |
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TENNESSEE VALLEY AUTHORITY Post Office Box 2000, Spring City, Tennessee 3738 1 WBL-22-061 October 17, 2022 ATTN : Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001
Subject:
Watts Bar Nuclear Plant, Unit 1 and Unit 2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390, 50-391, and 72-1048 Emergency Plan Implementing Procedure Revisions 10 CFR 50.54(q)(5) 10 CFR 72.44(f)
Pursuant to Title 10, Code of Federal Regulations (10 CFR) 50.54(q)(5), and 10 CFR 72.44(f),
Tennessee Valley Authority (TVA) is submitting a description of changes to the Watts Bar Nuclear Plant (WBN) Radiological Emergency Plan (REP). The affected documents are the WBN Emergency Plan Implementing Procedures (EPIP) listed below:
EPIP Revision Title Effective Date 1
56 Emergency Plan Classification Logic 10/03/2022 2
48 Notification of Unusual Event 10/032022 3
51 Alert 10/03/2022 4
49 Site Area Emergency 10/03/2022 5
60 General Emergency 10/03/2022 DescriQtion of Changes EPIP-1 Revision 56 changed values for the Steam Generator Discharge radiation monitors based on design output from revision 26 of WBNTSR 115 (Radiological Emergency Plan Effluent Radiation Monitors Emergency Action Levels (EALs) and Radiation Alert Levels). The calculation was updated to replace the calibration factors with Steam Generator Tube
U.S. Nuclear Regulatory Commission WBL-22-061 Page 2 October 17, 2022 Rupture (SGTR) values that apply at the time of unit trip instead of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> afterward. The values were also updated in the Attachment 1, Emergency Classification Wallboards.
EPIP-2 Revision 48, EPIP-3 Revision 51, EPIP-4 Revision 49, and EPIP-5 Revision 60 updated Main Steam Line and Condensate Demineralizer radiation monitor values for determining if release is in progress and deleted footnote for Unit 2 monitors which is no longer applicable due to calculation WBNTSR115 update.
The above changes were evaluated in accordance with 10 CFR 50.54(q)(3) and 10 CFR 72.44(f). TVA determined that the changes did not reduce the effectiveness of the WBN REP. The WBN REP, as revised, continues to meet the requirements in Appendix E to 10 CFR 50 and the planning standards of 10 CFR 50.47(b).
There are no new regulatory commitments in this letter. Please direct all questions concerning this matter to Michael White, Emergency Preparedness Manager, at mrwhite@tva.gov.
Anthony L. Williams IV Site Vice President Watts Bar Nuclear Plant cc:
NRC Regional Administrator - Region II NRC Senior Resident Inspector - Watts Bar Nuclear Plant NRC Project Manager - Watts Bar Nuclear Plant NRC Director - Division of Fuel Management, NMSS