NL-17-0463, Transmittal of 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016

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Transmittal of 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016
ML17110A061
Person / Time
Site: Hatch, Vogtle, Farley  Southern Nuclear icon.png
Issue date: 04/20/2017
From: Hutto J
Southern Nuclear Operating Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-17-0463
Download: ML17110A061 (18)


Text

~ Southern Nuclear J. J. Hutto Regulatory Affairs Director 40 lnvem~s~ Center PJd,wuy Post Office Hox 1295 Birmingham. -\1 -;;242 205 9915R72 tel 205 991 760 I fJ~

jjhuno@south~mcn.com APR 2 0 2017 Docket Nos.: 50-321 50-366 NL-17-0463 50-348 50-424 50-364 50-425 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Edwin I. Hatch Nuclear Plant Units 1 and 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 2016 Ladies and Gentlemen:

Southern Nuclear Operating Company (SNC) is the licensed operator for the Edwin I. Hatch Nuclear Plant (Hatch) Units 1 & 2, 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 Hatch, Farley and Vogtle are provided in Enclosures 1, 2, and 3. The resulting peak cladding temperature (PCT) for Hatch, Farley and Vogtle continue to meet the criterion of 10 CFR 50.46(b)(1) (i.e., ~ 2200°F).

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/PDB/Iac

U.S. Nuclear Regulatory Commission NL-17-0463 Page 2

Enclosures:

1. Edwin I. Hatch Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016
2. Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016
3. Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 cc: Southern Nuclear Operating Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Bost, Executive Vice President & Chief Nuclear Officer Mr. D. R. Madison, Vice President- Farley Mr. D. R. Vineyard, Vice President- Hatch 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. L. Johnson, Regulatory Affairs Manager- Hatch Mr. D. D. Sutton, Regulatory Affairs Manager- Vogtle 1 & 2 RTypes: CFA04.054; CHA02.004; CVC?OOO U.S. Nuclear Regulatory Commission Ms. C. Haney, Regional Administrator Mr. S. A. Williams, NRR Senior Project Manager- Farley Mr. R. Hall, NRR Senior Project Manager- Hatch Mr. M. D. Orenak, NRR Senior Project Manager- Vogtle 1 & 2 Mr. P. K. Niebaum, Senior Resident Inspector- Farley Mr. D. H. Hardage, Senior Resident Inspector- Hatch Mr. M. F. Endress, Senior Resident Inspector- Vogtle 1 & 2

Edwin I. Hatch Nuclear Plant Units 1 and 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 2016 Enclosure 1 Edwin I. Hatch Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 to NL-17-0463 Edwin I. Hatch Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Edwin I. Hatch Nuclear Plant Unit 1 Table 1-1a- SAFERIGESTR-LOCA Summary of Changes I Errors (2016) (GE14)

Estimated Description Effect (L'l PCT)

None affecting PCT 0 Table 1-1b- SAFERIPRIME-LOCA Summary of Changes I Errors (2016) (GNF2)

Estimated Description Effect (L'l PCT)

None affecting PCT 1 ot Table 1-1c- Cumulative Impact of Changes /Errors GE14 GNF2 Description L'liPCTI L'liPCTI eF> (oF)

  • Changes/Errors Previously Reported (Reference 1) 0 0
  • Summary of Changes/Errors (2016) 0 0 Cumulative Total 0 0 1

On April 1, 2016, a Significant Change I Error report was submitted (Reference 1). This "reset" the baseline PCT for reporting purposes. There were no additional changes I errors in 2016 other than those reported in Reference 1.

E1-1 to NL-17-0463 Edwin I. Hatch Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Edwin I. Hatch Nuclear Plant Unit 2 Table 1-2a- SAfER/GESTR-LOCA Summary of Changes I Errors (2016) (GE14)

Estimated Effect Description

(~Pen None affecting PCT 0 Table 1-2b - SAfER/PRIME-LOCA Summary of Changes I Errors (2016) (GNf2)

Estimated Effect Description

(~Pen None affecting PCT 0 Table 1-2c - Cumulative Impact of Changes /Errors GE14 GNf2 Description ~IPCTI ~IPCTI (Of) (Of)

  • Changes/Errors Previously Reported (Reference 1) 0 0
  • Summary of Changes/Errors {2016) 0 0 Cumulative Total 0 0 E1-2 to NL-17-0463 Edwin I. Hatch Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016

Reference:

1. Letter from C. R. Pierce to USNRC (NL-16-0463), "Edwin I. Hatch Nuclear Plant Units 1 and 2, 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 and Significant Change/Error Report," dated April 1, 2016
2. Global Nuclear Fuel 002N6847, "Supplemental Reload Licensing Report for Hatch 2 Reload 24 Cycle 25," dated November 2016 E1-3

Edwin I. Hatch Nuclear Plant Units 1 and 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 2016 Enclosure 2 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 to NL-17-0463 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Joseph M. Farley Nuclear Plant - Unit 1 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2016)

Estimated Description Effect

(!1 PCT °F)_

None affecting PCT 0 Table 1-1b- Cumulative Impact of Changes/Errors lliPCTI Description (Of)

  • Changes/Errors Previously Reported (Reference 1) 0
  • Summary of Changes/Errors (2016) (Reference 2) 0 Cumulative Total 0 E2-1 to NL-17-0463 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Joseph M. Farley Nuclear Plant - Unit 1 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-1 c - Summary of Changes/Errors (2016)

Estimated Description Effect

(~ PCT °F)

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

~ IPCTI Description (oF)

  • Changes/Errors Previously Reported (Reference 1) 0
  • Summary of Changes/Errors (2016) (Reference 2} 0 Cumulative Total 0 E2-2 to NL-17-0463 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Joseph M. Farley Nuclear Plant - Unit 2 ASTRUM Best Estimate Large Break LOCA Evaluation Table 1-2a- Summary of Changes/Errors (2016)

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 (2016) (Reference 2) 0 Cumulative Total 0 E2-3 to NL-17-0463 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Joseph M. Farley Nuclear Plant - Unit 2 NOTRUMP Appendix K Small Break LOCA Evaluation Table 1-2c - Summary of Changes/Errors (2016)

Estimated Description Effect (f1 PCT °F)

None affecting PCT 0 Table 1-2d - Cumulative Impact of Changes/Errors t1IPCTI Description eF>

  • Changes/Errors Previously Reported (Reference 1) 0
  • Summary of Changes/Errors (2016) (Reference 2) 0 Cumulative Total 0 E2-4 to NL-17-0463 Joseph M. Farley Nuclear Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016

References:

1. Letter from C. R. Pierce to USNRC (NL-16-2660), "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," dated December 21, 2016
2. Westinghouse Letter LTR-LIS-17-34, "J. M. Farley Units 1 and 2, 10 CFR 50.46 Annual Notification and Reporting for 2016," dated February 8, 2017 E2-5

Edwin I. Hatch Nuclear Plant Units 1 and 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 2016 Enclosure 3 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 to NL-17-0463 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Vogtle Electric Generating Plant- Unit 1 BASH Large Break LOCA Evaluation Table 1-1a- Summary of Changes/Errors (2016)

Estimated Effect Description

(~ PCT) (°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 (2016} (Reference 2) 0 Cumulative Total 29 E3-1 to NL-17-0463 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Vogtle Electric Generating Plant - Unit 1 Appendix K Small Break LOCA Evaluation Table 1-1c- Summary of Changes/Errors {2016)

Estimated Effect Description

{L1 PCT)

None affecting PCT 0 Table 1-1d- Cumulative Impact of Changes/Errors L1IPCTI Description (Of)

  • Changes/Errors Previously Reported (Reference 1) 0
  • Changes/Errors 2016 Calendar Year (Reference 2) 0 Cumulative Total 0 E3-2 to NL-17-0463 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Vogtle Electric Generating Plant- Unit 2 BASH Large Break LOCA Evaluation Table 1*2a - Summary of Changes/Errors (2016)

Estimated Description Effect

<~ Pen None affecting PCT 0 Table 1*2b

  • Cumulative Impact of Changes/Errors

~ IPCTI Description (Of)

  • Changes/Errors Previously Reported (Reference 1) 29
  • Summary of Changes/Errors (2016) (Reference 2) 0 Cumulative Total 29 E3-3 to NL-17-0463 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016 Vogtle Electric Generating Plant - Unit 2 Appendix K Small Break LOCA Evaluation Table 1-2c- Summary of Changes/Errors (2016)

Estimated Effect Description

(~ 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 2016 Calendar Year (Reference 2) 0 Cumulative Total 0 E3-4 to NL-17-0463 Vogtle Electric Generating Plant Units 1 and 2 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2016

References:

1. Letter from C. R. Pierce to USNRC (NL-16-2660), "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," dated December 21, 2016
2. Westinghouse Letter LTR-LIS-17 -54, " A. W. Vogtle Units 1 and 2, 10 CFR 50.46 Annual Notification and Reporting for 2016," dated February 8, 2017 E3-5