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Category:Letter
MONTHYEARML24032A0252024-02-0505 February 2024 NRC Initial Test Program and Operational Programs Integrated Inspection Report 05200026-2023009 ML24010A0712024-01-31031 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (Security Notifications, Reports and Recordkeeping and Suspicious Activity Reporting) ML24031A6102024-01-31031 January 2024 Cyber Security Inspection Report 05200026/2024401 - Public ML24029A0592024-01-30030 January 2024 Request for Withholding Information from Public Disclosure Responses to NRC Request for Additional Information for Refueling Outage 1R24 Steam Generator Tube Inspection Report Enclosure 2, GAE-NRCD-RF-LR-000002 P-Attachment, Rev. 0 ML24016A1132024-01-30030 January 2024 Correction of Unit 1 Amendment Nos. 96 and 190 and Unit 2 Amendment Nos. 74 and 173 Adoption of Standard Technical Specifications Westinghouse Plants NL-24-0031, Inservice Inspection Program Owner'S Activity Report (OAR-1) for Outage 2R232024-01-29029 January 2024 Inservice Inspection Program Owner'S Activity Report (OAR-1) for Outage 2R23 IR 05000424/20244032024-01-26026 January 2024 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000424/2024403; 05000425/2024403 NL-24-0020, Plan, Unit 1 Responses to NRC Request for Additional Information for Refueling Outage 1R24 Steam Generator Tube Inspection Report2024-01-22022 January 2024 Plan, Unit 1 Responses to NRC Request for Additional Information for Refueling Outage 1R24 Steam Generator Tube Inspection Report ML23347A2092024-01-17017 January 2024 Voluntary Requests for Data, Information, And/Or Observation ML23279A0042024-01-17017 January 2024 Amendment No. 194 to Remove Combined License Appendix C NL-23-0926, Correction of Technical Specification Typographical Error2024-01-12012 January 2024 Correction of Technical Specification Typographical Error ML23341A2042024-01-12012 January 2024 Request for Additional Information Exemption Requests for Physical Barriers (EPID L-2023-LLE-0018 & L-2023-LLE-0021) ML23345A1312024-01-0303 January 2024 Withholding Letter - SNC Fleet - Physical Barriers Exemption (L-2023-LLE-0018 and L-2023-LLE-0021) ML23317A2072023-12-22022 December 2023 Issuance of Amendments 223 and 206 Regarding Revision to Technical Specifications to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the COLR Consistent with WCAP-1448 ML23335A1222023-12-19019 December 2023 Safety Evaluation Regarding Implementation of Mitigating Strategies Related to Order EA-12-049 (EPID L-2023-LRQ-0002) - Letter ML23353A1702023-12-19019 December 2023 LAR-22-002, TS 3.8.3 Inverters Operating Completion Time Extension Letter ML23310A2922023-12-0707 December 2023 Issuance of Amendment for Exception to Regulatory Guide 1.163, LAR 23 007 ML23339A1812023-12-0707 December 2023 Correction Letter Regarding License Amendment Request: More Restrictive Action for Technical Specification 3.1.9 ML23338A2182023-12-0606 December 2023 Project Manager Reassignment NL-23-0878, Request for Exemption from Security Event Notification Implementation2023-11-29029 November 2023 Request for Exemption from Security Event Notification Implementation ML23289A1632023-11-28028 November 2023 Letter and Amendment 195 and 192 LAR-23-006R1 TS 3.1.9 More Restrictive Action NL-23-0827, Response to Requests for Additional Information for a License Amendment Request and a Proposed Alternative Related to TS 3.4.142023-11-17017 November 2023 Response to Requests for Additional Information for a License Amendment Request and a Proposed Alternative Related to TS 3.4.14 ML23318A4582023-11-14014 November 2023 Integrated Inspection Report 05200025/2023003 ML23312A3502023-11-14014 November 2023 Integrated Inspection Report 05200026/2023003 ML23306A3552023-11-0808 November 2023 NRC Initial Test Program and Operational Programs Integrated Inspection Report 052000/262023008 ML23268A0572023-11-0707 November 2023 Issuance of Amendments 194 & 191 Request for License Amendment Relocation of Technical Specification 3.7.9, Spent Fuel Pool Makeup Water Sources (LAR-23-003) IR 05000424/20234022023-11-0606 November 2023 Security Baseline Inspection Report 05000424/2023402 and 05000425/2023402 IR 05000424/20230032023-10-27027 October 2023 Integrated Inspection Report 05000424/2023003 and 05000425/2023003 ML23291A1512023-10-18018 October 2023 Information Request for the Cyber Security Baseline Inspection, Notification to Perform Inspection 0520026/2024401 ML23263A9852023-10-12012 October 2023 Issuance of Amendments Nos. 221 and 204, Regarding Technical Specification 5.5.11.C, Acceptance Criteria for Charcoal Filter Testing ML23283A0472023-10-0808 October 2023 Neop Letter Dated October 8, 2023 - Vogtle 3 & 4 - TS 3.7.6 License Amendment Request NL-23-0750, Response to Second Request for Additional Information Regarding License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the Colr2023-10-0404 October 2023 Response to Second Request for Additional Information Regarding License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the Colr NL-23-0745, Refueling Outage 1R24 Steam Generator Tube Inspection Report2023-09-22022 September 2023 Refueling Outage 1R24 Steam Generator Tube Inspection Report ML23254A2032023-09-13013 September 2023 Initial Test Program and Operational Programs Inspection Report 05200025/2023013 ML23241B0212023-09-12012 September 2023 Review of Quality Assurance Topical Report ML23234A2352023-09-0808 September 2023 Request for Withholding Information from Public Disclosure Notification of Full Compliance of Required Action for NRC Order EA-12-049 Mitigation Strategies for Beyond-Design-Basis External Events IR 05000424/20230912023-09-0505 September 2023 Plan Units 1 and 2 - NRC Investigation Report 2-2022-006 and Notice of Violation - NRC Inspection Report 05000424/2023091 and 05000425/2023091 ML23234A3002023-09-0101 September 2023 NRC Integrated Inspection Report 05200026/2023003 ML23243A0092023-08-31031 August 2023 Updated Inspection Plan for Vogtle Electric Generating Plant, Units 3 & 4 (Report 05200025 2023005 & 05200026 2023005) NL-23-0695, Response to Round 2 Request for Additional Information Regarding License Amendment Request for Technical Specification 3.8.3, Inverters Operating, Completion Time Extension (LAR-22-002S2)2023-08-31031 August 2023 Response to Round 2 Request for Additional Information Regarding License Amendment Request for Technical Specification 3.8.3, Inverters Operating, Completion Time Extension (LAR-22-002S2) ML23243B0252023-08-30030 August 2023 Exam Corporate Notification Letter (210 Day) IR 05000424/20230052023-08-29029 August 2023 Updated Inspection Plan for Vogtle Electric Generating Plant, Units 1 & 2 - Report 05000424/2023005 and 05000425/2023005 NL-23-0666, License Amendment Request: Remove Combined License Appendix C (LAR 23-008)2023-08-28028 August 2023 License Amendment Request: Remove Combined License Appendix C (LAR 23-008) 2024-02-05
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October 7, 2004 Mr. J. T. Gasser Vice President Southern Nuclear Operating Company, Inc.
Post Office Box 1295 Birmingham, Alabama 35201-1295
SUBJECT:
VOGTLE ELECTRIC GENERATING PLANT, UNITS 1 AND 2 - STEAM GENERATOR TUBE INSPECTION RESULTS FOR FALL 2002 AND FALL 2003 OUTAGES (TAC NOS. MC1979 AND MC1980)
Dear Mr. Gasser:
By letters to the U.S. Nuclear Regulatory Commission (NRC) dated October 31, 2002, February 4, 2003, October 27, 2003, January 16, 2004, and August 26, 2004, Southern Nuclear Operating Company Inc. (the licensee), submitted reports and provided additional information pertaining to their steam generator tube inspections at Vogtle Electric Generating Plant, Units 1 and 2, for their fall 2003 and fall 2002 outages, respectively, in accordance with the plants Technical Specifications (TSs). The NRC staff has completed its review of the licensees inservice inspection reports and concludes that the licensee has provided the information required by the TSs and that no additional follow-up is required at this time. A copy of the NRC staffs review is enclosed.
Sincerely,
/RA/
Christopher Gratton, Sr. Project Manager Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-424 and 50-425
Enclosure:
As stated cc w/encl: See next page
ML042870005 NRR-106 OFFICE PDII-1/PM PDII-1/LA (A) EMCB/SC PDII-1/SC (A)
NAME CGratton DClarke ALund* MRoss-Lee DATE 10/6/04 10/5/04 9/16/04 10/7/04 DISTRIBUTION FOR VOGTLE ELECTRIC GENERATING PLANT, UNITS 1 AND 2 - STEAM GENERATOR TUBE INSPECTION RESULTS FOR FALL 2002 AND FALL 2003 OUTAGES (TAC NOS. MC1979 AND MC1980)
Dated: October 7, 2004 DISTRIBUTION:
PUBLIC PDII R/F RidsNrrPMCGratton RidsNrrLACHawes/DClarke RidsRgn2MailCenter (BBonser)
JNakoski/MJRoss-Lee RidsOgcRp RidsAcrsAcnwMail RidsNrrDlpmDpr RidsDeDpr LLund MMurphy YDiaz
REVIEW OF THE 2002/2003 STEAM GENERATOR TUBE INSPECTION REPORTS VOGTLE ELECTRIC GENERATING PLANT UNITS 1 & 2 DOCKET NOS. 50-424 AND 50-425 By letters to the U.S. Nuclear Regulatory Commission (NRC) dated October 31, 2002 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML023110389), February 4, 2003 (ML030410264), October 27, 2003 (ML033030404),
January 16, 2004 (ML040220620), and August 26, 2004 (ML042430424), Southern Nuclear Operating Company Inc. (the licensee), submitted information pertaining to their 2002 Unit 2 (2R9) and 2003 Unit 1 (1R11) steam generator (SG) tube inspections at Vogtle Electric Generating Plant (Vogtle). ADAMS documents can be viewed on the Nuclear Regulatory Commission (NRC) website, www.nrc.gov, in the Electronic Reading Room, under Documents in ADAMS, by selecting Web Based Access and entering the applicable accession number.
Vogtle, Units 1 and 2 have four Westinghouse Model F SGs each. There are 5626 thermally treated Alloy 600 tubes in each of the SGs. The tubes have an outside diameter of 11/16 inch, a wall thickness of 0.040-inch, and are supported by seven stainless steel tube support plates (TSPs) and a flow distribution baffle. The TSP holes are quatrefoil shaped. The U-bend region of the tubes in rows 1 through 10 was stress relieved after bending.
Of particular note from the outages is that the licensee performed a quatrefoil blockage assessment and an evaluation of the effects of the phosphate chemistry excursion that occurred in 2002 at Vogtle, Units 1 and 2. The results for the quatrefoil blockage assessment were: (1) no clean tube to TSP intersections were observed, (2) scale is significantly thicker at the bottom of the TSP than at the top, and (3) more deposits are observed in intersections at TSP7 than at other TSPs (TSP7 is the uppermost tube support). For the evaluation of the effects of the phosphate chemical excursion, the licensee inspected 100 percent of the tubes with a bobbin probe and inspected 50 percent of the tubes at the top of the hot leg tubesheet with a +Point probe. In addition, the licensee performed an analysis and history comparison to identify any excursion signals that could indicate the possible onset of corrosion. None were identified. Additional details on the phosphate chemical excursion can be found in an NRC letter dated April 24, 2003 (ML031150065).
The licensee provided the scope, extent, methods and results of their SG tube inspections in the documents referenced above. In addition, the licensee described corrective actions (i.e., tube plugging or repair) taken in response to the inspection findings.
Enclosure
Based on a review of the information provided, the NRC staff concludes that the licensee provided the information required by their technical specifications. In addition, the NRC staff concludes that there are no technical issues that warrant follow-up action at this time since the inspections appear to be consistent with the objective of detecting potential tube degradation and the inspection results appear to be consistent with industry operating experience at similarly designed and operated units.
Vogtle Electric Generating Plant cc:
Mr. N.J. Stringfellow Harold Reheis, Director Manager, Licensing Department of Natural Resources Southern Nuclear Operating 205 Butler Street, SE. Suite 1252 Company, Inc. Atlanta, Georgia 30334 P. O. Box 1295 Birmingham, Alabama 35201-1295 Attorney General Law Department Mr. Skip Kitchens 132 Judicial Building General Manager, Vogtle Electric Atlanta, Georgia 30334 Generating Plant Southern Nuclear Operating Mr. Laurence Bergen Company, Inc. Oglethorpe Power Corporation P. O. Box 1600 2100 East Exchange Place Waynesboro, Georgia 30830 P. O. Box 1349 Tucker, Georgia 30085-1349 Mr. J. Gasser Executive Vice President Arthur H. Domby, Esquire Southern Nuclear Operating Troutman Sanders Company, Inc. NationsBank Plaza P. O. Box 1295 600 Peachtree Street, NE.
Birmingham, Alabama 35201-1295 Suite 5200 Atlanta, Georgia 30308-2216 Steven M. Jackson Senior Engineer - Power Supply Resident Inspector Municipal Electric Authority Vogtle Plant of Georgia 8805 River Road 1470 Riveredge Parkway, NW. Waynesboro, Georgia 30830 Atlanta, Georgia 30328-4684 Office of the County Commissioner Mr. Reece McAlister Burke County Commission Executive Secretary Waynesboro, Georgia 30830 Georgia Public Service Commission 244 Washington St., S. W.
Atlanta, Ga. 30334