ML062710314
| ML062710314 | |
| Person / Time | |
|---|---|
| Site: | Catawba  (NPF-035) |
| Issue date: | 09/29/2006 |
| From: | Stang J NRC/NRR/ADRO/DORL/LPLII-1 |
| To: | Jamil D Duke Power Co |
| Stang J, NRR/DORL, 415-1345 | |
| References | |
| TAC MC8256 | |
| Download: ML062710314 (5) | |
Text
September 29, 2006 Mr. Dhiaa Jamil Vice President Catawba Nuclear Station Duke Power Company LLC 4800 Concord Road York, SC 29745
SUBJECT:
CATAWBA NUCLEAR STATION, UNIT 1 - REVIEW OF CYCLE 15 STEAM GENERATOR TUBE INSERVICE INSPECTION
SUMMARY
REPORTS (TAC NO. MC8256)
Dear Mr. Jamil:
By letters to the Nuclear Regulatory Commission (NRC) dated November 28, 2005 and August 30, 2005, as supplemented by letter May 15, 2006, Duke Power Company LLC (the licensee) submitted the Cycle 15 steam generator (SG) tube inservice inspection reports for Catawba Nuclear Station (Catawba) Unit 1, in accordance with Technical Specification (TS)
Section 5.6.8, and as required by the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI, Paragraph IWA-6230, for the SG tube inspections performed during the end of cycle (EOC) 15 refueling outage (May 2005).
A summary of the NRC staffs evaluation of the EOC 15 refueling outage SG tube inspection results is enclosed. The NRC staff concludes that the licensee provided the information required by the Catawba Unit 1 TSs, and that no additional follow-up is required at this time.
Sincerely,
/RA/
John F. Stang, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-413
Enclosure:
EOC 15 Refueling Outage SG Tube Inspection Results cc w/encl: See next page
September 29, 2006 Mr. Dhiaa Jamil Vice President Catawba Nuclear Station Duke Power Company LLC 4800 Concord Road York, SC 29745
SUBJECT:
CATAWBA NUCLEAR STATION, UNIT 1 - REVIEW OF CYCLE 15 STEAM GENERATOR TUBE INSERVICE INSPECTION
SUMMARY
REPORTS (TAC NO. MC8256)
Dear Mr. Jamil:
By letters to the Nuclear Regulatory Commission (NRC) dated November 28, 2005 and August 30, 2005, as supplemented by letter May 15, 2006, Duke Power Company LLC (the licensee) submitted the Cycle 15 steam generator (SG) tube inservice inspection reports for Catawba Nuclear Station (Catawba) Unit 1, in accordance with Technical Specification (TS)
Section 5.6.8, and as required by the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI, Paragraph IWA-6230, for the SG tube inspections performed during the end of cycle (EOC) 15 refueling outage (May 2005).
A summary of the NRC staffs evaluation of the EOC 15 refueling outage SG tube inspection results is enclosed. The NRC staff concludes that the licensee provided the information required by the Catawba Unit 1 TSs, and that no additional follow-up is required at this time.
Sincerely,
/RA/
John F. Stang, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-413
Enclosure:
EOC 15 Refueling Outage SG Tube Inspection Results cc w/encl: See next page DISTRIBUTION:
PUBLIC RidsAcrsAcnwMailCenter LPL2-1 R/F RidsNrrDorlLpl2-1(EMarinos)
RidsNrrPMJStang(hard copy)
RidsNrrDorlDpr RidsRgn2MailCenter(MErnstes)
RidsNrrLAMOBrien(hard copy)
RidsOgcRp L. Miller, NRR RidsNrrDciCsgb ADAMS: ML062710314
- No major changes to memo dated 7/17/06 OFFICE LPL2-1 LPL2-1/PM LPL2-1/LA DCI/CSGB*
LPL2-1/BC NAME RJervey JStang MOBrien (DClarke for)
AHiser EMarinos DATE 9/29/06 9/29/06 9/29/06 7/17/06 9/29/06 OFFICIAL RECORD COPY
Enclosure OFFICE OF NUCLEAR REACTOR REGULATION REVIEW OF THE STEAM GENERATOR TUBE INSPECTION REPORTS FOR CYCLE 15 CATAWBA NUCLEAR STATION, UNIT 1 DOCKET NO. 50-413 By letters to the Nuclear Regulatory Commission (NRC) dated November 28, 2005 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML053410182) and August 30, 2005 (ADAMS Accession No. ML052500494), as supplemented by letter dated May 15, 2006 (ADAMS Accession No. ML061430258), Duke Power Company LLC (the licensee) submitted the Cycle 15 steam generator (SG) tube inservice inspection reports for Catawba Nuclear Station (Catawba) Unit 1, in accordance with Technical Specification (TS) Section 5.6.8, and as required by the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI, Paragraph IWA-6230, for the SG tube inspections performed during the end of cycle (EOC) 15 refueling outage (May 2005).
Catawba Unit 1 has CFR 80 SGs which are designated SGA through SGD. All four SGs were inspected during the EOC 15 SG tube inservice inspections. The CFR 80 SGs contain approximately 6,633 Alloy 690 tubes which have a 0.688-inch outside diameter and a 0.040-inch wall thickness. The tube support plates are lattice Type 410 Stainless Steel.
The licensee provided the scope, extent, methods, and results of the Catawba Unit 1 SG tube inspections in the documents referenced above. In addition, the licensee described corrective actions (i.e., tube plugging) taken in response to the inspection findings. The licensee confirmed that analyses were performed to ensure that tube integrity would be maintained until the next inspection.
Based on a review of the information provided, the NRC staff concludes that the licensee provided the information required by their TSs. 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.
Catawba Nuclear Station, Units 1 & 2 Page 1 of 2 cc:
Mr. Lee Keller, Manager Regulatory Compliance Duke Energy Corporation 4800 Concord Road York, South Carolina 29745 Ms. Lisa F. Vaughn Duke Energy Corporation 526 South Church Street P. O. Box 1006 Mail Code = EC07H Charlotte, North Carolina 28201-1006 North Carolina Municipal Power Agency Number 1 1427 Meadowwood Boulevard P.O. Box 29513 Raleigh, North Carolina 27626 County Manager of York County York County Courthouse York, South Carolina 29745 Piedmont Municipal Power Agency 121 Village Drive Greer, South Carolina 29651 Ms. Karen E. Long Assistant Attorney General North Carolina Department of Justice P.O. Box 629 Raleigh, North Carolina 27602 NCEM REP Program Manager 4713 Mail Service Center Raleigh, North Carolina 27699-4713 North Carolina Electric Membership Corp.
P.O. Box 27306 Raleigh, North Carolina 27611 Senior Resident Inspector U.S. Nuclear Regulatory Commission 4830 Concord Road York, South Carolina 29745 Mr. Henry Porter, Assistant Director Division of Waste Management Bureau of Land and Waste Management Dept. of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201-1708 Mr. R.L. Gill, Jr., Manager Nuclear Regulatory Issues and Industry Affairs Duke Energy Corporation 526 South Church Street Mail Stop EC05P Charlotte, North Carolina 28202 Saluda River Electric P.O. Box 929 Laurens, South Carolina 29360 Mr. Peter R. Harden, IV, Vice President Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, North Carolina 28210 Mr. T. Richard Puryear Owners Group (NCEMC)
Duke Energy Corporation 4800 Concord Road York, South Carolina 29745
Catawba Nuclear Station, Units 1 & 2 Page 2 of 2 cc:
Division of Radiation Protection NC Dept. of Environment, Health, and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Mr. Henry Barron Group Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006