W3F1-2008-0034, Non-Application of Alternative W3-ISI-004 to the Second Interval ISI Examinations,

Non-Application of Alternative W3-ISI-004 to the Second Interval ISI Examinations,

ML081420017
Person / Time
Site:	Waterford
Issue date:	05/17/2008
From:	Murillo R Entergy Nuclear South, Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC MD6351, TAC MD7061, W3-ISI-004, W3F1-2008-0034
Download: ML081420017 (3)

Text

Entergy Nuclear South Entergy Operations! Inc.

17265 River Road Killona, LA 70057-3093 Entergy Tel 504-739-6715 Fax 504-739-6698 rmurill@entergy.com Robert J. Murillo Licensing Manager Waterford 3 W3F1-2008-0034 May 17, 2008 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

Non-Application of Alternative W3-ISI-004 to the Second Interval ISI Examinations Waterford Steam Electric Station, Unit 3 Docket No. 50-382 License No. NPF-38

REFERENCES:

1 NRC letter dated March 25, 2008, Waterford Steam Electric Station, Unit 3 - Request for Relief W3-lSl-004, Alternative to Requirements to Allow Extension to Second 10-Year Inservice Inspection Interval Beyond That Currently Allowed by ASME Code, ParagraphIWA-2340(d) (TAC NO. MD6351) 2 NRC letter dated April 28, 2008, Waterford Steam Electric Station, Unit 3 - Request for Alternative W3-1SI-005, Request to Use ASME Code Case N-716 (TAC NO. MD 7061)

Dear Sir or Madam:

The purpose of this letter is to inform the NRC Staff Waterford 3 will not apply ASME Alternative W3-ISI-004 approved by the NRC in Reference 1. This letter provides the basis for this decision.

Approval by the NRC of ASME Alternative W3-ISI-005 (Reference 2) has obviated the need to apply ASME Alternative W3-ISI-004. Alternative W3-1SI-004 authorized inservice examination of seven (7) Examination Category B-J dissimilar metal welds in the Reactor Coolant System cold leg piping to be extended to the end of the sixteenth refueling/outage currently scheduled for the fall 2009. Alternative W3-ISI-005 replaces the number and locations of nondestructive examination inspections based on ASME,Section XI requirements for the current Waterford 3 10-year ISI program with the number and locations of the NDE inspections based on the Risk Informed ISI (RI-ISI) guidelines. Therefore, NDE inspection of the 7 dissimilar metal welds is not required for the second interval under Alternative W3-1SI-005.

I -t V

W3F1-2008-0034 Page 2 of 3 The commitments of record made in conjunction with the NRC approval of Alternative W3-1SI-004 are no longer applicable, and therefore the commitments, as re-stated below, will not be implemented.

• Perform a bare metal visual examination of the seven Category B-J dissimilar metal welds during RF15.

• Submit a request for alternative by October 2008 that will commit to either examine the welds with an ultrasonic method acceptable to the NRC or to install a structural weld overlay on the deferred dissimilar metal welds contained in Request for Alternative W3-ISI-004 during RF16 as the alternative to the inspection requirements of ASME Code Section Xl.

As stated in the NRC Safety Evaluation Report for Alternative W3-1SI-005, Waterford 3 will use MRP-139 as an augmented inspection program for the scheduled inspection and management of PWSCC-susceptible dissimilar metal weld that will supplement the RI-ISI program. The RI-ISI program will not be used to eliminate any MRP-139 requirements. The information herein provided is judged to be in accordance with Alternative W3-ISI-005, and also, the information has been discussed with the NRC Project Manager.

Please contact Robert Murillo at (504) 739-6715 should you have any questions or require additional information.

Sincerely, RJM/RL /

W3F1-2008-0034 Page 3 of 3 cc: Mr. Elmo E. Collins, Jr.

Regional Administrator U. S. Nuclear Regulatory Commission Region IV 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 NRC Senior Resident Inspector Waterford Steam Electric Station Unit 3 P.O. Box 822 Killona, LA 70066-0751 U. S. Nuclear Regulatory Commission Attn: Mr. N. Kalyanam Mail Stop O-07D1 Washington, DC 20555-0001 Wise, Carter, Child & Caraway ATTN: J. Smith P.O. Box 651 Jackson, MS 39205 Louisiana Department of Environmental Quality Office of Environmental Compliance Surveillance Division P. O. Box 4312 Baton Rouge, LA 70821-4312 American Nuclear Insurers Attn: Library Town Center Suite 300S 2 9 th S. Main Street West Hartford, CT 06107-2445