NL-16-2660, Submittal of 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015

Submittal of 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015

ML16356A403
Person / Time
Site:	Vogtle, Farley
Issue date:	12/21/2016
From:	Pierce C Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-16-2660
Download: ML16356A403 (15)

Text

.... Southern Nuclear Charles R. Pierce Regulatory Affairs Director 40 Inverness Center Parkway Post Office Box 1295 Birmingham, AL 35242 205 992 7872 tel 205 992 7601 lax crpierce@ southernco.com DEC 2 1 2016 Docket Nos.: 50-348 50-424 NL-16-2660 50-364 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Joseph M. Farley Nuclear Plant Units 1 and 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Ladies and Gentlemen:

Southern Nuclear Operating Company (SNC) is the licensed operator for the Joseph M. Farley Nuclear Plant (Farley) Units 1 and 2, and the Vogtle Electric Generating Plant (Vogtle), Units 1 and 2. The requirements of 10 CFR 50.46(a)(3)(ii) include an annual report by licensees of changes to or errors in acceptable emergency core cooling system (ECCS) models that affect the temperature calculation and the estimated effect of changes or errors on the limiting ECCS analysis. Accordingly, the reports required by 10 CFR 50.46(a)(3)(ii) for Farley and Vogtle are provided in Enclosures 1 and 2, respectively. The resulting peak cladding temperature (PCT) for Farley and Vogtle continue to meet the criterion of 10 CFR 50.46(b)(1) (i.e., :S 2200°F) .

Please note that the 2015 annual report for the Edwin I. Hatch Nuclear Plant, Units 1 and 2, was previously sent by letter dated April 1, 2016.

This letter contains no NRC commitments. If you have any questions, please contact Ken McElroy at (205) 992-7369.

tp~ul~itted, C. R. Pierce Regulatory Affairs Director CRP/RMJ/Iac

U.S. Nuclear Regulatory Commission NL-16-2660 Page 2

Enclosures:

1. Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015

2. Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 cc: Southern Nuclear Operating Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Best, Executive Vice President & Chief Nuclear Officer Ms. C. A. Gayheart, Vice President - Farley Mr. D. R. Madison, Vice President- Fleet Operations Mr. B. K. Taber, Vice President- Vogtle 1 & 2 Mr. M. D. Meier, Vice President- Regulatory Affairs Mr. B. J. Adams, Vice President- Engineering Ms. B. L. Taylor, Regulatory Affairs Manager- Farley Mr. D. D. Sutton, Regulatory Affairs Manager- Vogtle 1 & 2 RType: CFA04.054; CVC7000 U. S. Nuclear Regulatory Commission Ms. C. Haney, Regional Administrator Mr. S. A. Williams, NRR Senior Project Manager- Farley Mr. E. T. Coffman, Senior Resident Inspector- Vogtle 1 & 2 Mr. P. K. Niebaum, Senior Resident Inspector- Farley Mr. R. E. Martin, NRR Senior Project Manager- Vogtle 1 & 2 Mr. M. D. Orenak, NRR Project Manager- Hatch

U.S. Nuclear Regulatory Commission NL-16-2660 Page 2

Enclosures:

1. Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015

2. Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 cc: Southern Nuclear Operating Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Bost, Executive Vice President & Chief Nuclear Officer Ms. C. A. Gayheart, Vice President - Farley Mr. D. R. Madison, Vice President- Fleet Operations Mr. B. K. Taber, Vice President- Vogtle 1 & 2 Mr. M. D. Meier, Vice President- Regulatory Affairs Mr. B. J. Adams, Vice President- Engineering Ms. B. L. Taylor, Regulatory Affairs Manager- Farley Mr. D. D. Sutton, Regulatory Affairs Manager- Vogtle 1 & 2 RType: CFA04.054; CVC7000 U.S. Nuclear Regulatory Commission Ms. C. Haney, Regional Administrator Mr. S. A. Williams, NRR Senior Project Manager- Farley Mr. E. T. Coffman, Senior Resident Inspector- Vogtle 1 & 2 Mr. P. K. Niebaum, Senior Resident Inspector- Farley Mr. R. E. Martin, NRR Senior Project Manager- Vogtle 1 & 2 Mr. M. D. Orenak, NRR Project Manager- Hatch 1 & 2

Joseph M. Farley Nuclear Plant Units 1 and 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Enclosure 1 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 to NL-16-2660 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Joseph M. Farley Nuclear Plant - Unit 1 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2015)

Estimated Description Effect

_(~ PCT °FJ None affecting PCT 0 Table 1-1b- Cumulative Impact of Changes/Errors

~IPCTI Description (Of)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2015) (Reference 2) 0 Cumulative Total 0 E1-1 to NL-16-2660 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Joseph M. Farley Nuclear Plant- Unit 1 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors (2015)

Estimated Description Effect

_(L\ PCT °F)

None affecting PCT 0 Table 1-1d- Cumulative Impact of Changes/Errors L\IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2015) (Reference 2) 0 Cumulative Total 0 E1-2 to NL-16-2660 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Joseph M. Farley Nuclear Plant - Unit 2 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-2a - Summary of Changes/Errors (2015)

Estimated Description Effect

(~ PCT °F)

None affecting PCT 0 Table 1-2b - Cumulative Impact of Changes/Errors

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2015) (Reference 2) 0 Cumulative Total 0 E1-3 to NL-16-2660 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Joseph M. Farley Nuclear Plant - Unit 2 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2015)

Estimated Description Effect

(~ PCT °F)

None affecting PCT 0 Table 1-2d- Cumulative Impact of Changes/Errors

~ IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2015) (Reference 2) 0 Cumulative Total 0 E1-4 to NL-16-2660 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015

References:

1. Letter from C. R. Pierce to USNRC (NL-15-2276), "Joseph M. Farley Nuclear Plant Units 1 and 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014," dated December 23 2015

2. Westinghouse Letter LTR-LIS-16-32, "J. M. Farley Units 1 and 2, 10 CFR 50.46 Annual Notification and Reporting for 2015," dated February 18, 2016 E1-5

Joseph M. Farley Nuclear Plant Units 1 and 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Enclosure 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 to NL-16-2660 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Vogtle Electric Generating Plant- Unit 1 BASH Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors {2015)

Estimated Description Effect

<~ Pen (°F)

None affecting PCT 0 Table 1-1b- Cumulative Impact of Changes/Errors

~IPCTI Description

{Of)

• Changes/Errors Previously Reported (Reference 1) 29

• Summary of Changes/Errors {2015) (Reference 2) 0 Cumulative Total 29 E2-1 to NL-16-2660 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Vogtle Electric Generating Plant- Unit 1 Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors {2015)

Estimated Description Effect

<~ Pen None affecting PCT 0 Table 1-1d- Cumulative Impact of Changes/Errors

~ IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Changes/Errors 2015 Calendar Year (Reference 2) 0 Cumulative Total 0 E2-2 to NL-16-2660 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Vogtle Electric Generating Plant - Unit 2 BASH Large Break LOCA Evaluation Table 1-2a - Summary of Changes/Errors (2015)

Estimated Description Effect

(~ PCT)

None affecting PCT 0 Table 1-2b - Cumulative Impact of Changes/Errors

~IPCTI Description eF>

• Changes/Errors Previously Reported (Reference 1) 29

• Summary of Changes/Errors (2015) (Reference 2) 0 Cumulative Total 29 E2-3 to NL-16-2660 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015 Vogtle Electric Generating Plant- Unit 2 Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2015)

Estimated Description Effect

(~ PCT)

None affecting PCT 0 Table 1-2d - Cumulative Impact of Changes/Errors

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Changes/Errors 2015 Calendar Year (Reference 2) 0 Cumulative Total 0 E2-4 to NL-16-2660 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2015

References:

1. Letter from C. R. Pierce to USNRC (NL-15-2276), "Joseph M. Farley Nuclear Plant Units 1 and 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014," dated December 23 2015

2. Westinghouse letter LTR-LIS-16-50, "A. W. Vogtle Units 1 and 2 10 CFR 50.46 Annual Notification and Reporting for 2015," dated February 18, 2016.

E2-5