ML100050664

Summary of Conference Calls on 11/13/09 and 11/17/09 with Entergy Operations, Inc., Discussed Steam Generator Tube Inspections

ML100050664
Person / Time
Site:	Waterford
Issue date:	01/07/2010
From:	Kalyanam N K Plant Licensing Branch IV
To:	Entergy Operations
Kalyanam N, NRR/DORL/LPL4, 415-1480
References
TAC ME2619
Download: ML100050664 (3)

Text

UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 January 7, 2010 Vice President, Operations Entergy Operations, Inc. Waterford Steam Electric Station, Unit 3 17265 River Road Killona, LA 70057-3093 WATERFORD STEAM ELECTRIC STATION, UNIT 3 -

SUMMARY

OF NOVEMBER 13 AND 17, 2009, DISCUSSIONS ON STEAM GENERATOR TUBE INSPECTIONS (TAC NO. ME2619)

Dear Sir or Madam:

On November 13 and 17, 2009, the U.S. Nuclear Regulatory Commission (NRC) staff participated in conference calls with Entergy Operations, Inc. (Entergy, the licensee), representatives, K. Nichols, R. Murillo, R. Putnam, R. O'Quinn, et. aI., regarding the fall 2009 steam generator tube inspections at Waterford Steam Electric Station, Unit 3. A summary of the November 2009 conference calls is enclosed.

The e-mail and handouts provided by the licensee to support the conference calls are contained in Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML093210501, ML093210539, and ML093210544.

The NRC staff did not identify any issues that would warrant preventing the plant from starting up following its 16th refueling outage. If you have any questions, please call me at (301) 415-1480.

Sincerely, N. Kalyanam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

As stated cc w/encl: Distribution via Listserv

SUMMARY

OF NOVEMBER 13, AND 17, 2009, CONFERENCE CALLS WITH ENTERGY OPERATIONS INC. REGARDING THE FALL 2009 STEAM GENERATOR TUBE INSPECTION AT WATERFORD STEAM ELECTRIC STATION, UNIT 3 DOCKET NO. 50-382 On November 13, and 17,2009, the U.S. Nuclear Regulatory Commission staff participated in a conference call with representatives of Entergy Operations, Inc. (Entergy, the licensee), regarding the ongoing steam generator (SG) tube inspections activities at Waterford Steam Electric Station, Unit 3 (Waterford 3). The e-mail and handouts provided by the licensee to support the conference calls are contained in Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML09321 0501, ML09321 0539, and ML093210544.

Waterford 3 has two Model 3410 SGs. Each SG contains 9,350 mill annealed Alloy 600 tubes. Each tube has a diameter of 0.750 inches and a nominal wall thickness of 0.048 inches. The tubes were explosively expanded at both ends for the full length of the tubesheet and are supported by a number of carbon steel lattice grid tube supports, diagonal bars and vertical straps. Additional clarifying information, or information not included in the material provided by the licensee, is summarized below: One tube with an axial indication at the seventh egg crate support was identified for in-situ pressure testing. The tube is located in row 18, column 112 in SG 31. The indication is approximately 1.22 inches long and its maximum depth was estimated as 66 percent through wall with an Electric Power Research Institute sizing technique and 53 percent through wall with a Westinghouse sizing technique. At the time of the calls, no crack-like indications were detected in dents, dings, or in the U-bend region. The licensee has administrative limits on the primary-to-secondary leak rate. The licensee indicated that if the leak rate exceeds 15 gallons per day, the plant would be shut down within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. The wall thickness of the J-nozzles is typically larger than the nominal pipe wall thickness. On November 17, 2009, the licensee reported that the in-situ pressure test on the tube in row 18, column 112 was completed and that there was no leakage or burst at 5500 pounds per square inch. The NRC staff did not identify any issues that would warrant preventing the plant from starting up following its 16th refueling outage. Enclosure January 7, 2010 Vice President, Operations Entergy Operations, Inc. Waterford Steam Electric Station, Unit 3 17265 River Road Killona, LA 70057-3093 WATERFORD STEAM ELECTRIC STATION, UNIT 3 -

SUMMARY

OF NOVEMBER 13 AND 17, 2009, DISCUSSIONS ON STEAM GENERATOR TUBE INSPECTIONS (TAC NO. ME2619)

Dear Sir or Madam:

On November 13 and 17, 2009, the U.S. Nuclear Regulatory Commission (NRC) staff participated in conference calls with Entergy Operations, Inc. (Entergy, the licensee), representatives, K. Nichols, R. Murillo, R. Putnam, R. O'Quinn, et. aI., regarding the fall 2009 steam generator tube inspections at Waterford Steam Electric Station, Unit 3. A summary of the November 2009 conference calls is enclosed.

The e-mail and handouts provided by the licensee to support the conference calls are contained in Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML093210501, ML093210539, and ML09321 0544. The NRC staff did not identify any issues that would warrant preventing the plant from starting up following its 16th refueling outage. If you have any questions, please call me at (301) 415-1480.

Sincerely, IRAJ N. Kalyanam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

As stated cc w/encl: Distribution via Listserv DISTRIBUTION:

PUBLIC LPLIV R/F RidsAcrsAcnw_MailCTR Resource RidsNrrDciCsgb Resource RidsNrrDorlDpr Resource RidsNrrDorlLpl4 Resource RidsNrrPMWaterford Resource RidsNrrLAJBurkhardt Resource RidsOgcRp Resource RidsRgn4MailCenter Resource KKarwoski, NRR/DCI ADAMS Accession No ML 100050664

• Memo dated OFFICE DORULPL4/PM DORULPL4/LA DCI/CSGB/BC DORULPL4/BC DORULPL4/PM NAME NKalyanam JBurkhardt RTaylor* MMarkley NKalyanam DATE 1/6/10 1/6/10 12/29/09 1/6/10 1/7/10 OFFICIAL RECORD COPY