ML040990275
| ML040990275 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 04/08/2004 |
| From: | Moroney B NRC/NRR/DLPM/LPD2 |
| To: | Stall J Florida Power & Light Co |
| Moroney B, NRR/DLPM, 415-3974 | |
| References | |
| EA-03-009, TAC MC1394, TAC MC1395 | |
| Download: ML040990275 (5) | |
Text
April 8, 2004 Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 33408-0420
SUBJECT:
ST. LUCIE NUCLEAR PLANT, UNIT 1 - FIRST REVISED ORDER EA-03-009 RELAXATION REQUESTS - REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. MBC1394 AND MC1395)
Dear Mr. Stall:
By letter dated November 21, 2003, Florida Power and Light Company (FPL) submitted two requests for relaxation from the ultrasonic testing and bare metal visual inspection requirements of the U.S. Nuclear Regulatory Commission (NRC) Order EA-03-009 for St. Lucie Unit 1.
On February 20, 2004, the NRC issued the First Revised Order EA-03-009, which revised requirements for bare metal visual inspections and penetration nozzle nonvisual inspections.
By letter dated March 23, 2004, FPL confirmed its continued need for relaxation from inspection requirements in the First Revised Order.
In telephone conference calls on April 2, 2004, and April 4, 2004, FPL and the NRC staff discussed the relaxation requests under review and the results of the inspections. Based on these discussions, FPL made a revised submittal in a letter dated April 6, 2004, which withdrew Relaxation Request No.1 and revised Relaxation Request No. 2.
The NRC staff has reviewed your submittal and finds that a response to the enclosed request for additional information (RAI) is needed before we can complete the review. This request was discussed with your staff on April 7, 2004.
If you have any questions, please feel free to contact me at (301) 415-3974.
Sincerely,
/RA/
Brendan T. Moroney, Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-335
Enclosure:
RAI cc w/encl: See next page
ML040990275 OFFICE PDII-2/PM PDII-2/LA EMCB/SC PDII-2/SC (A)
NAME BMoroney BClayton TChan WBurton DATE 04/07/04 04/08/04 email 4/7/04 04/08/04
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION ORDER EA-03-009 RELAXATION REQUEST NOS. 1 AND 2 SAINT LUCIE PLANT, UNIT 1 DOCKET NO. 50-335 1.
The April 6, 2004, submittal withdrew Relaxation Request No. 1 regarding bare metal visual (BMV) inspections. The previous submittals provided detailed information regarding the inability to obtain 360 degree coverage around nozzle #2. Please explain what was done to remove or bypass the obstruction so that BMV Relaxation is no longer necessary.
2.
Please explain the limitation in obtaining a 12 degree arc (no scan) for penetration #6 when you achieved 360 degree UT coverage greater than 2 inches above the weld for all other 11 degree nozzle angles 3.
With respect to question #2, please explain why the scan limitation for a specific nozzle angle may be different among penetrations that have the same nozzle angle. For example, penetration #12 had an arc of 47 degrees missed while penetrations 10 and 13 achieved 360 degree coverage. All three penetrations are listed as having a 22.4 degree nozzle angle.
4.
With respect to the 17 penetrations where ultrasonic testing (UT) coverage was less than 2.0 inches above the weld on the uphill side, were there any instances where that same arc of unexamined area extended to the downhill side of the weld? If so, what were the hoop stress levels in the unexamined areas?
5.
Please explain the process used to obtain 100 percent UT coverage down to the bottom of the nozzle and why relaxation is no longer necessary.
6.
In your earlier submittal and during the April 2, 2004, telephone call, you indicated that stress levels were less than 20 ksi at scan distances exceeding 0.75 inch above the weld as part of the technical basis for the relaxation request. Your April 6, 2004, submittal extends this length to 1.11 inches. Please discuss the basis for the difference and why the new number (scan distance) is truly representative and conservative.
Mr. J. A. Stall ST. LUCIE PLANT Florida Power and Light Company cc:
Senior Resident Inspector St. Lucie Plant U.S. Nuclear Regulatory Commission P.O. Box 6090 Jensen Beach, Florida 34957 Craig Fugate, Director Division of Emergency Preparedness Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 M. S. Ross, Managing Attorney Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Marjan Mashhadi, Senior Attorney Florida Power & Light Company 801 Pennsylvania Avenue, NW Suite 220 Washington, DC 20004 Mr. Douglas Anderson County Administrator St. Lucie County 2300 Virginia Avenue Fort Pierce, Florida 34982 Mr. William A. Passetti, Chief Department of Health Bureau of Radiation Control 2020 Capital Circle, SE, Bin #C21 Tallahassee, Florida 32399-1741 Mr. William Jefferson, Jr.
Site Vice President St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen Beach, Florida 34957-2000 Mr. G. L. Johnston Plant General Manager St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen Beach, Florida 34957 Mr. Terry Patterson Licensing Manager St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen Beach, Florida 34957 David Moore, Vice President Nuclear Operations Support Florida Power and Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Rajiv S. Kundalkar Vice President - Nuclear Engineering Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. J. Kammel Radiological Emergency Planning Administrator Department of Public Safety 6000 SE. Tower Drive Stuart, Florida 34997