ML032340061
| ML032340061 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 08/21/2003 |
| From: | Jaffe D NRC/NRR/DLPM/LPD4 |
| To: | Sheppard J South Texas |
| Jaffe D, NRR/DLPM, 415-1439 | |
| References | |
| TAC MB6541 | |
| Download: ML032340061 (5) | |
Text
August 21, 2003 Mr. James J. Sheppard President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289 Wadsworth, TX 77483
SUBJECT:
SOUTH TEXAS PROJECT, UNIT 1 - NRC STAFFS REVIEW OF THE SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION, UNIT 1 STEAM GENERATOR TUBE INSPECTION REPORT FROM THE FALL 2001 OUTAGE (TAC NO. MB6541)
Dear Mr. Sheppard:
By letters dated November 6, 2001, and January 22, 2002, the South Texas Nuclear Operating Company, the licensee for the South Texas Project Electric Generating Station, Unit 1, submitted reports summarizing the steam generator (SG) tube inspections performed during refueling outage 1RE10 (fall 2001). The staff supplemented the SG inspection reports with information provided by the licensee in support of a license amendment request regarding SG inspection frequency (ML021780019).
The NRC staff notes that no tubes were plugged and no axial or circumferential crack-like indications were reported in any of the four SGs during the 2001 refueling outage. No indication of wear or service-induced wall reduction was detected in any of the four SGs during the 2001 refueling outage. A number of ding and dent signals were reported in each of the four SGs.
One notable ding-like signal, measuring 58.55 volts was reported in SG-B, but rotating pancake coil testing revealed no signs of degradation. The licensee did not specifically identify the signals location or indicate if this signal was new or if it was traceable to the preservice exam.
If this signal was new the staff believes the licensee should consider, for future outages, additional diagnostic testing in order to further characterize and document the cause of such a signal.
The NRC staff concludes that the licensee provided the information required by the technical specifications and that no additional follow-up is required at this time. This completes our review of the subject submittal and our efforts under TAC No. MB6541.
Sincerely,
/RA/
David H. Jaffe, Senior Project Manager, Section 1 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-498 cc: See next page
Mr. James J. Sheppard August 21, 2003 President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289 Wadsworth, TX 77483
SUBJECT:
SOUTH TEXAS PROJECT, UNIT 1 - NRC STAFFS REVIEW OF THE SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION, UNIT 1 STEAM GENERATOR TUBE INSPECTION REPORT FROM THE FALL 2001 OUTAGE (TAC NO. MB6541)
Dear Mr. Sheppard:
By letters dated November 6, 2001, and January 22, 2002, the South Texas Nuclear Operating Company, the licensee for the South Texas Project Electric Generating Station, Unit 1, submitted reports summarizing the steam generator (SG) tube inspections performed during refueling outage 1RE10 (fall 2001). The staff supplemented the SG inspection reports with information provided by the licensee in support of a license amendment request regarding SG inspection frequency (ML021780019).
The NRC staff notes that no tubes were plugged and no axial or circumferential crack-like indications were reported in any of the four SGs during the 2001 refueling outage. No indication of wear or service-induced wall reduction was detected in any of the four SGs during the 2001 refueling outage. A number of ding and dent signals were reported in each of the four SGs.
One notable ding-like signal, measuring 58.55 volts was reported in SG-B, but rotating pancake coil testing revealed no signs of degradation. The licensee did not specifically identify the signals location or indicate if this signal was new or if it was traceable to the preservice exam.
If this signal was new the staff believes the licensee should consider, for future outages, additional diagnostic testing in order to further characterize and document the cause of such a signal.
The NRC staff concludes that the licensee provided the information required by the technical specifications and that no additional follow-up is required at this time. This completes our review of the subject submittal and our efforts under TAC No. MB6541.
Sincerely,
/RA/
David H. Jaffe, Senior Project Manager, Section 1 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-498 cc: See next page DISTRIBUTION:
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South Texas, Unit 1 cc:
Mr. Cornelius F. OKeefe Senior Resident Inspector U.S. Nuclear Regulatory Commission P. O. Box 910 Bay City, TX 77414 A. Ramirez/C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 Mr. L. K. Blaylock Mr. W. C. Gunst City Public Service Board P. O. Box 1771 San Antonio, TX 78296 Mr. C. A. Johnson/A. C. Bakken AEP Texas Central Company P. O. Box 289 Mail Code: N5022 Wadsworth, TX 77483 INPO Records Center 700 Galleria Parkway Atlanta, GA 30339-3064 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 D. G. Tees/R. L. Balcom Texas Genco, LP P. O. Box 1700 Houston, TX 77251 Judge, Matagorda County Matagorda County Courthouse 1700 Seventh Street Bay City, TX 77414 A. H. Gutterman, Esq.
Morgan, Lewis & Bockius 1111 Pennsylvania Avenue, NW Washington, DC 20004 Mr. T. J. Jordan, Vice President Engineering & Technical Services STP Nuclear Operating Company P. O. Box 289 Wadsworth, TX 77483 S. M. Head, Manager, Licensing Nuclear Quality & Licensing Department STP Nuclear Operating Company P. O. Box 289, Mail Code: N5014 Wadsworth, TX 77483 Environmental and Natural Resources Policy Director P. O. Box 12428 Austin, TX 78711-3189 Jon C. Wood Matthews & Branscomb 112 East Pecan, Suite 1100 San Antonio, TX 78205 Arthur C. Tate, Director Division of Compliance & Inspection Bureau of Radiation Control Texas Department of Health 1100 West 49th Street Austin, TX 78756 Brian Almon Public Utility Commission William B. Travis Building P. O. Box 13326 1701 North Congress Avenue Austin, TX 78701-3326
South Texas, Unit 1 cc:
Susan M. Jablonski Office of Permitting, Remediation and Registration Texas Commission on Environmental Quality MC-122 P.O. Box 13087 Austin, TX 78711-3087 Mr. Terry Parks, Chief Inspector Texas Department of Licensing and Regulation Boiler Division P. O. Box 12157 Austin, TX 78711 Mr. Ted Enos 4200 South Hulen Suite 630 Ft. Worth, Texas 76109