NL-15-2276, Submittal of 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014

Submittal of 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014

ML15357A268
Person / Time
Site:	Vogtle, Farley
Issue date:	12/23/2015
From:	Pierce C Southern Co, Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-15-2276
Download: ML15357A268 (14)

Text

Charles R. Pierce Southern Nuclear Regulatory Affairs Director Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham, AL 35201 Tel 205.992.7872 Fax 205.992.7601 SOUT ERN << \

NUCL AR A SOUTHERN COMPANY Docket Nos.: 50-348 50-424 NL-15-2276 50-364 50-425 U. S. Nuclear Regulatory Commission ATIN: 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 2014 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 2014 annual report for the Edwin I. Hatch Nuclear Plant, Units 1 and 2, was previously sent by letter dated April 8, 2015.

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

Respectfully submitted, cR.&

C. R. Pierce Regulatory Affairs Director CRP/RMJ/Iac

Enclosures:

1. Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014

2. Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 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. G. W. Gunn, Regulatory Affairs Manager- Vogtle 1 & 2 RType: Farley=CFA04.054; Vogtle=CVC7000 U.S. Nuclear Regulatory Commission Mr. L. D. Wert, Regional Administrator (Acting)

Mr. S. A. Williams, NRR Project Manager- Farley Mr. L. M. Cain, Senior Resident Inspector- Vogtle 1 & 2 Mr. P. K. Niebaum, Senior Resident Inspector- Farley Mr. R.E. Martin, NRR Project Manager- Vogtle 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 2014 Enclosure 1 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 1 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT °F)

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 (2014) (Reference 2) 0 Cumulative Total 0 E1-1 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 1 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors (2014}

Estimated Description Effect

(~ PCT 0 F)

None affecting PCT N/A Table 1-1d- Cumulative Impact of Changes/Errors

~IPCTI Description (oF}

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 0 Cumulative Total 0 E1-2 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 2 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-2a- Summary of Changes/Errors {2014)

Estimated Description Effect

(~ PCT °F)

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

~IPCTI Description eF>

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 0 Cumulative Total 0 E1-3 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 2 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT 0 F)

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

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 0 Cumulative Total 0 E1-4 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014

References:

1. Letter from C. R. Pierce to USNRC (NL-14-1899), "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 2013," dated December 8 2014

2. Westinghouse Letter LTR-LIS-15-59, "J. M. Farley Units 1 and 2, 10 CFR 50.46 Annual Notification and Reporting for 2014," dated February 17, 2015 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 2014 Enclosure 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 1 BASH Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2014)

Estimated Description Effect (L1 Pen (°F)

None affecting PCT N/A Table 1-1b- Cumulative Impact of Changes/Errors L1IPCTI Description (DF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 29 Cumulative Total 29 E2-1 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 1 Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT)

None affecting PCT N/A Table 1-1d- Cumulative Impact of Changes/Errors

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Changes/Errors 2014 Calendar Year (Reference 2) 0 Cumulative Total 0 E2-2 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 2 BASH Large Break LOCA Evaluation Table 1-2a- Summary of Changes/Errors (2014)

Estimated Description Effect

<~Pen None affecting PCT N/A Table 1-2b - Cumulative Impact of Changes/Errors

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2} 29 Cumulative Total 29 E2-3 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 2 Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT)

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

~IPCTI Description (of)

• Changes/Errors Previously Reported (Reference 1) 0

• Changes/Errors 2014 Calendar Year (Reference 2) 0 Cumulative Total 0 E2-4

Enclosure 2 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report fOF 2014

References:

1. Letter from C. R. Pierce to USNRC (NL-14-1899), "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 2013," dated December 8 2014

2. Westinghouse letter LTR-LIS-15-37, "A. W. Vogtle Units 1 and 210 CFR 50.46 Annual Notification and Reporting for 2014," dated February 19, 2015.

E2-5

Charles R. Pierce Southern Nuclear Regulatory Affairs Director Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham, AL 35201 Tel 205.992.7872 Fax 205.992.7601 SOUT ERN << \

NUCL AR A SOUTHERN COMPANY Docket Nos.: 50-348 50-424 NL-15-2276 50-364 50-425 U. S. Nuclear Regulatory Commission ATIN: 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 2014 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 2014 annual report for the Edwin I. Hatch Nuclear Plant, Units 1 and 2, was previously sent by letter dated April 8, 2015.

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

Respectfully submitted, cR.&

C. R. Pierce Regulatory Affairs Director CRP/RMJ/Iac

Enclosures:

1. Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014

2. Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 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. G. W. Gunn, Regulatory Affairs Manager- Vogtle 1 & 2 RType: Farley=CFA04.054; Vogtle=CVC7000 U.S. Nuclear Regulatory Commission Mr. L. D. Wert, Regional Administrator (Acting)

Mr. S. A. Williams, NRR Project Manager- Farley Mr. L. M. Cain, Senior Resident Inspector- Vogtle 1 & 2 Mr. P. K. Niebaum, Senior Resident Inspector- Farley Mr. R.E. Martin, NRR Project Manager- Vogtle 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 2014 Enclosure 1 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 1 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT °F)

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 (2014) (Reference 2) 0 Cumulative Total 0 E1-1 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 1 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors (2014}

Estimated Description Effect

(~ PCT 0 F)

None affecting PCT N/A Table 1-1d- Cumulative Impact of Changes/Errors

~IPCTI Description (oF}

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 0 Cumulative Total 0 E1-2 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 2 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-2a- Summary of Changes/Errors {2014)

Estimated Description Effect

(~ PCT °F)

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

~IPCTI Description eF>

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 0 Cumulative Total 0 E1-3 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Joseph M. Farley Nuclear Plant - Unit 2 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT 0 F)

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

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 0 Cumulative Total 0 E1-4 to NL-15-2276 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014

References:

1. Letter from C. R. Pierce to USNRC (NL-14-1899), "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 2013," dated December 8 2014

2. Westinghouse Letter LTR-LIS-15-59, "J. M. Farley Units 1 and 2, 10 CFR 50.46 Annual Notification and Reporting for 2014," dated February 17, 2015 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 2014 Enclosure 2 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 1 BASH Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2014)

Estimated Description Effect (L1 Pen (°F)

None affecting PCT N/A Table 1-1b- Cumulative Impact of Changes/Errors L1IPCTI Description (DF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2) 29 Cumulative Total 29 E2-1 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 1 Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT)

None affecting PCT N/A Table 1-1d- Cumulative Impact of Changes/Errors

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Changes/Errors 2014 Calendar Year (Reference 2) 0 Cumulative Total 0 E2-2 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 2 BASH Large Break LOCA Evaluation Table 1-2a- Summary of Changes/Errors (2014)

Estimated Description Effect

<~Pen None affecting PCT N/A Table 1-2b - Cumulative Impact of Changes/Errors

~IPCTI Description (oF)

• Changes/Errors Previously Reported (Reference 1) 0

• Summary of Changes/Errors (2014) (Reference 2} 29 Cumulative Total 29 E2-3 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2014 Vogtle Electric Generating Plant- Unit 2 Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2014)

Estimated Description Effect

(~ PCT)

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

~IPCTI Description (of)

• Changes/Errors Previously Reported (Reference 1) 0

• Changes/Errors 2014 Calendar Year (Reference 2) 0 Cumulative Total 0 E2-4

Enclosure 2 to NL-15-2276 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report fOF 2014

References:

1. Letter from C. R. Pierce to USNRC (NL-14-1899), "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 2013," dated December 8 2014

2. Westinghouse letter LTR-LIS-15-37, "A. W. Vogtle Units 1 and 210 CFR 50.46 Annual Notification and Reporting for 2014," dated February 19, 2015.

E2-5

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