ML032100321
| ML032100321 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 08/08/2003 |
| From: | Thadani M NRC/NRR/DLPM/LPD4 |
| To: | |
| Thadani M, NRR/DLPM, 415-1476 | |
| References | |
| TAC MB8435 | |
| Download: ML032100321 (7) | |
Text
August 8, 2003 LICENSEE:
STP Nuclear Operating Company FACILITY:
South Texas Project, Unit 1
SUBJECT:
SUMMARY
OF HEADQUARTERS, REGION IV, AND SOUTH TEXAS PROJECT NUCLEAR OPERATING COMPANY TELEPHONE CONFERENCE OF JULY 10, 2003, REGARDING SOUTH TEXAS PROJECT, UNIT 1, BOTTOM-MOUNTED INSTRUMENTATION LEAKAGE ISSUE; STATUS OF ACTIVITIES (TAC NO. MB8435)
On July 10, 2003, the U. S. Nuclear Regulatory Commission (NRC) Headquarters and Region IV staff held a telephone conference with STP Nuclear Operating Company (STPNOC), the licensee for South Texas Project (STP), Units 1 & 2. The conference call was a continuation of the ongoing discussions and was a follow up of the licensees activities following the discovery at Unit 1 of an apparent leakage at the interface of the reactor vessel bottom head mounted instrumentation (BMI) penetrations nos. 1 and 46. is a list of participants. Enclosure 2 is the agenda for the telephone conference.
At this phone call the licensee went through a list of ongoing activities, outlining the status as follows:
The licensee will capture boat samples, including the weld area where a helium bubbles release was sighted.
The licensee is set to start taking the boat samples on July 11th and will ship the samples to Framatome promptly.
The licensee will provide NRC with schedules for the sample processing.
The licensee plans to release a letter tomorrow which provides information regarding actions taken and commitments made. The letter is undergoing final internal licensee reviews.
Regarding the finite element analyses of fatigue factors, the summary of the fatigue calculations does not include a safety factor of 4. The safety factor of 2 will be used for the cumulative usage factor calculation.
All of the guide tubes have been cleaned and fittings were replaced at the seal table.
The root cause analyses are progressing.
Primary Water Stress Corrosion Cracking does not appear to be the root cause for the crack indications. Fabrication is the more likely cause. The licensee will continue to study both options until satisfied with the conclusion.
As part of its post-repair monitoring program, the licensee will commit to do penetration ultrasonic testing (UT) inspections again at the end of the Unit 1 current inservice inspection interval, sometime in 2008 or 2009.
Unit 2 visual examination has shown no problems. The licensee will complete the Unit 2 penetration UT examination in 2005.
The wastage will be monitored on the repair nozzles. The licensee is discussing with the NRC its post-repair monitoring decisions.
The phone call ended with a reminder that the July 17, 2003, call will not be held due to the third NRC/STPNOC meeting on that same day.
/RA/
Mohan C. Thadani, Sr. Project Manager, Section 1 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-498
Enclosures:
- 1. List of Participants
- 2. Telephone Conference Agenda cc: see next page LIST OF PARTICIPANTS STPNOC/NRC TELEPHONE CONFERENCE JULY 10, 2003 Licensees Participants Dave Rencurrel Manager, Plant Operations Chet McIntyre BMI Engineering Tripp Frahm BMI Project Manager Ed Conway Public Information Wayne Harrison Licensing NRC Participants Headquarters Region IV Mohan Thadani Bill Johnson Carol Moyer Tom Farnholtz Mark Hartzman Russ Bywater Stephanie Coffin Mike Runyan Jack Foster Bob Gramm Chris Gratton STPNOC/NRC TELEPHONE CONFERENCE AGENDA JULY 10, 2003 1.
Desired Outcomes & Agenda Review Harrison 1400 CDT (2) 2.
Overall status of Unit 1 Discuss Rencurrel (2) 3.
Status of repair activities Discuss Frahm (5) 4.
Root cause and inspection and monitoring plan Discuss McIntyre (10) 5.
Boat sample activities Discuss McIntyre (5) 6.
Status of Engineering and Licensing Actions Discuss Harrison (10) 7.
Schedule for next call or other communications and feedback on call (+/)
Discuss Harrison (5)
- via e-mail NRC-001 OFFICE PDIV-1/PM PDIV-1/LA RIV PDIV-1/SC NAME MThadani:sab MMcAllister WJohnson*
RGramm DATE 8/08/2003 8/08/2003 8/08/2003 8/08/2003
May 2003 South Texas Project, 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 Project, 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 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