ML17181A338
| ML17181A338 | |
| Person / Time | |
|---|---|
| Site: | Farley, 07200036  |
| Issue date: | 06/30/2017 |
| From: | Hutto J Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| NL-17-1117 | |
| Download: ML17181A338 (3) | |
Text
.t. Southern Nuclear JUL 3 0 2017 Docket Nos.: 50-348 50-364 72-036 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 J. J. Hutto Regulatory Affairs Director Joseph M. Farley Nuclear Plant Unit 1 and 2 Report of Changes to Emergency Plan Ladies and Gentlemen:
40 lmcmes; Center Parl-wa)
Post Office Bo' 1295 Btrmingham. AL ~52-12 205 992 5X72 tel 205 992 76111 fa' jjhuno@southemco.com NL-17-1117 In accordance with 10 CFR 50.54(q)(5) and 10 CFR 72.44(f), Southern Nuclear Operating Company (SNC) hereby submits descriptions of changes to the Plant Farley Emergency Plan and a summary of the analysis demonstrating that the changes do not reduce the effectiveness of the plan. The Emergency Plan, as changed, continues to meet the requirements in 10 CFR 50 Appendix E and the planning standards of 10 CFR 50.47(b). A description of the changes and a summary of analysis is enclosed.
This letter contains no NRC commitments. If you have any questions, please contact Ken McElroy at (205) 992-7369.
Respectfully submitted, J. J. Hutto Regulatory Affairs Director JJH/efb/lac
Enclosure:
- 1. Description of Changes and Summary of Analysis cc:
NRC Regional Administrator, Region II NRC NRR Project Manager-Farley NRC Senior Resident Inspector-Farley SNC Records RTYPE: CFA04.054
Joseph M. Farley Nuclear Plant Unit 1 and 2 Report of Changes to Emergency Plan Description of Changes and Summary of Analysis to NL-17-1117 SNC Response to NRC RAis Description of Changes and Summary of Analysis On June 13, 2017, Joseph M. Farley Nuclear Plant (FNP) Unit 1 ahd Unit 2 completed implementations of design changes to the plant vent stack effluent radiation monitors resulting in changes to the emergency plan and emergency action levels (EALs). The existing radiation monitors were aging and obsolete, not reliable, and difficult to maintain, including problems with procuring spare parts. The following radiation monitors were removed: R29B, R-14, R-21, R-22, and R-68. These monitors were replaced by a new General Atomics digital radiation monitoring system on both units. The replacement is not a one for one equipment change; but rather, functions of the existing monitors are being consolidated into the new monitoring system. The new monitoring system has an auto-scaling function that results in fewer monitors but maintains the same number of inputs as the existing system. The new system has low/medium/high range gas detection, particulate, iodine, and noble gas grab sampling capabilities for normal, emergency, and post-accident conditions.
The new radiation monitoring system necessitated minor changes to setpoint values for unit conversions and minor changes to emergency action levels (EALs). SNC has compared the ranges of the monitors being replaced with the ranges of the new monitors being installed and has ensured that the new monitors have a range capable of observing EAL setpoints listed in the Emergency Plan. FNP maintains the ability to declare an emergency based on the initiating conditions and threshold values in the relevant EALs.
These changes were evaluated in accordance with 10 CFR 50.54(q)(3) and it was determined that the new radiation monitors are an improvement in functionality and reliability, and as such, do not reduce the effectiveness of the Farley Emergency Plan. In addition, these changes have been reconciled with the recently approved Farley Emergency Plan Annex and NEI 99-01 Rev.
6 EAL scheme prior to implementation of the SNC Standard Emergency Plan.
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