NL-10-2340, 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2009

10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2009

ML103550233
Person / Time
Site:	Hatch, Vogtle, Farley
Issue date:	12/16/2010
From:	Ajluni M Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-10-2340
Download: ML103550233 (18)

Text

Mark J. Ajiluni, P.E. Southern Nuclear Nuclear Licensing Director Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham, Alabama 35201 Tel 205.992.7673 Fax 205.992.7885 SOUTHERNLAM December 16, 2010 COMPANY Docket Nos.: 50-321 50-348 50-424 NL-10-2340 50-366 50-364 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Edwin I. Hatch Nuclear Plant Joseph M. Farley Nuclear Plant Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2009 Ladies and Gentlemen:

Southern Nuclear Operating Company (SNC) is the licensed operator for the Edwin I. Hatch Nuclear Plant (Hatch), the Joseph M. Farley Nuclear Plant (Farley), and the Vogtle Electric Generating Plant (Vogtle). 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, respectively. The resulting peak cladding temperature (PCT) for Hatch, Farley, and Vogtle continues to meet the criterion of 10 CFR 50.46(b)(1) (i.e., < 2200 0 F).

This letter contains no NRC commitments. If you have any questions, please contact Jack Stringfellow at (205) 992-7037.

Respectfully submitted, M. J. Ajluni Nuclear Licensing Director MJA/CLT/emm

U. S. Nuclear Regulatory Commission NL-10-2340 Page 2

Enclosures:

1. Edwin I. Hatch Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009

2. Joseph M. Farley Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009

3. Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 cc: Southern Nuclear Operatinq Company Mr. J. T. Gasser, Executive Vice President Mr. J. R. Johnson, Vice President - Farley Mr. D. R. Madison, Vice President - Hatch Mr. T. E. Tynan, Vice President - Vogtle Ms. P. M. Marino, Vice President - Engineering RType: Farley=CFA04.054; Hatch=CHA02.004; Vogtle=CVC7000 U. S. Nuclear Regulatory Commission Mr. L. A. Reyes, Regional Administrator Mr. R. E. Martin, NRR Project Manager - Farley and Vogtle Mr. P. G. Boyle, NRR Project Manager - Hatch Mr. E. L. Crowe, Senior Resident Inspector - Farley Mr. E. D. Morris, Senior Resident Inspector - Hatch Mr. M. Cain, Senior Resident Inspector- Vogtle

Edwin 1. Hatch Nuclear Plant Joseph M. Farley Nuclear Plant Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2009 Enclosure 1 Edwin I. Hatch Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 to NL-10-2340 Edwin I. Hatch Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Edwin I. Hatch Nuclear Plant Unit 1 SAFER/GESTR-LOCA Analysis Model Table 1-1 a - Summary of Changes/Errors (2009).

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 1-1 b - Cumulative Impact of Changes/Errors GEl4 Description AIPCTI (OF)

" Changes/Errors Previously Reported (Reference 1) 5

" Current Year - 2009 (Reference 2) 0 Cumulative Total 5 E1-2 to NL-10-2340 Edwin I. Hatch Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Edwin I. Hatch Nuclear Plant Unit 2 SAFERIGESTR-LOCA Analysis Model Table 1-2a - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 1-2b - Cumulative Impact of Changes/Errors GE14 Description AIPCTI (OF)

• Changes/Errors Previously Reported (Reference 1) 5

" Current Year - 2009 (Reference 3) 0 Cumulative Total El -3 to NL-10-2340 Edwin I. Hatch Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009

References:

1. Letter from Mark J. Ajluni to USNRC (NL-09-1838), "Edwin I. Hatch Nuclear Plant, Joseph M. Farley Nuclear Plant, Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2008," dated December 17, 2009

2. Global Nuclear Fuel Supplemental Reload Licensing Report for Edwin I.

Hatch Nuclear Power Plant Unit 1 (Report Number 0000-0067-2863-SRLR),

Revision 0, dated December 2007

3. Global Nuclear Fuel Supplemental Reload Licensing Report for Edwin I.

Hatch Nuclear Power Plant Unit 2 (Report Number 0000-0083-5389-SRLR),

Revision 0, dated December 2008 El -4

Edwin I. Hatch Nuclear Plant Joseph M. Farley Nuclear Plant Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2009 Enclosure 2 Joseph M. Farley Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 to NL-10-2340 Joseph M. Farley Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Joseph M. Farley Nuclear Plant - Unit 1 ASTRUM Best Estimate Large Break LOCA Evaluation Table 2-1a - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 2-1b - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

• Changes/Errors Previously Reported (Reference 1) 18

• Current Year - 2009 (Reference 2) 0 Cumulative Total 18 E2-2 to NL-10-2340 Joseph M. Farley Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Joseph M. Farley Nuclear Plant - Unit 1 NOTRUMP Appendix K Small Break LOCA Evaluation Table 2-1c - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 2-1d - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

• Changes/Errors Previously Reported (Reference 1) 42

• Current Year - 2009 (Reference 2) 0 Cumulative Total 42 E2-3 to NL-10-2340 Joseph M. Farley Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Joseph M. Farley Nuclear Plant - Unit 2 ASTRUM Best Estimate Large Break LOCA Evaluation Table 2-2a - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 2-2b - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

• Changes/Errors Previously Reported (Reference 1) 18

" Current Year - 2009 (Reference 2) 0 Cumulative Total 18 E2-4 to NL-10-2340 Joseph M. Farley Nuclear Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Joseph M. Farley Nuclear Plant - Unit 2 NOTRUMP Appendix K Small Break LOCA Evaluation Table 2-2c - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 2-2d - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

" Changes/Errors Previously Reported (Reference 1) 0

" Current Year- 2009 (Reference 2) 0 Cumulative Total 0 E2-5 to NL-10-2340 Joseph M. Farley Nuclear Plant 10 CFR,50.46 ECCS Evaluation Model Annual Report for 2009

References:

1. Letter from Mark J. Ajluni to USNRC (NL-09-1838), "Edwin I. Hatch Nuclear Plant, Joseph M. Farley Nuclear Plant, Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 200," dated December 17, 2009

2. Westinghouse Letter LTR-LIS-10-86, "J. M. Farley Units 1 and 2 10 CFR 50.46 Annual Notification and Reporting for 2009," dated February 1,2010 E2-6

Edwin I. Hatch Nuclear Plant Joseph M. Farley Nuclear Plant Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2009 Enclosure 3 Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 to NL-10-2340 Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Vogtle Electric Generating Plant -. Unit 1 BASH Large Break LOCA Evaluation Table 3-1a -Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 3-1b - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

• Changes/Errors Previously Reported (Reference 1) 40

" Current Year - 2009 (Reference 2) 0 Cumulative Total 40 E3-2 to NL-10-2340 Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Vogtle Electric Generating Plant - Unit 1 Appendix K Small Break LOCA Evaluation Table 3-1c - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 3-1d - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

" Changes/Errors Previously Reported (Reference 1) 0

• Current Year - 2009 (Reference 2) 0 Cumulative Total 0 E3-3 to NL-10-2340 Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Vogtle Electric Generating Plant - Unit 2 BASH Large Break LOCA Evaluation Table 3-2a - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 3-2b - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

" Changes/Errors Previously Reported (Reference 1) 40

" Current Year - 2009 (Reference 2) 0 Cumulative Total 40 E3-4 to NL-10-2340 Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009 Vogtle Electric Generating Plant - Unit 2 Appendix K Small Break LOCA Evaluation Table 3-2c - Summary of Changes/Errors (2009)

Estimated Description Effect (A PCT)

None affecting PCT N/A Table 3-2d - Cumulative Impact of Changes/Errors Description AIPCTI (OF)

" Changes/Errors Previously Reported (Reference 1) 0

• Current Year - 2009 (Reference 2) 0 Cumulative Total 0 E3-5 to NL-10-2340 Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Report for 2009

References:

1. Letter from Mark J. Ajluni to USNRC (NL-09-1838), "Edwin I. Hatch Nuclear Plant, Joseph M. Farley Nuclear Plant, Vogtle Electric Generating Plant 10 CFR 50.46 ECCS Evaluation Model Annual Reports for 2008," dated December 17, 2009

2. Westinghouse Letter LTR-LIS-10-70, "Vogtle Units 1 and 2 10 CFR 50.46 Annual Notification and Reporting for 2009," dated January 27,2010 E3-6