ML100710741

Summary of Telephone Conference Call Between Dominion Energy Kewaunee, Inc. and the NRC to Discuss Certain RAI Responses on Two Mechanical Systems

ML100710741
Person / Time
Site:	Kewaunee
Issue date:	03/31/2010
From:	Daily J NRC/NRR/DLR/RPOB
To:	Dominion Energy Kewaunee
Daily J, NRR/ADRO/DLR, 415-3873
References
TAC MD9408
Download: ML100710741 (10)

Text

March 31, 2010 LICENSEE: Dominion Energy Kewaunee, Inc.

FACILITY: Kewaunee Power Station

SUMMARY

OF TELEPHONE CONFERENCE CALL BETWEEN DOMINION ENERGY KEWAUNEE, INC. AND THE U.S. NUCLEAR REGULATORY COMMISSION TO DISCUSS CERTAIN REQUEST FOR ADDITIONAL INFORMATION RESPONSES ON TWO MECHANICAL SYSTEMS (TAC NO.

MD9408)

On February 3, 2010, the U.S. Nuclear Regulatory Commission (NRC or the staff) conducted a conference call (teleconference) with representatives from Dominion Energy Kewaunee, Inc.

(DEK). The purpose of the teleconference was to discuss DEK responses to the staffs requests for additional information (RAIs) regarding the reactor vessel flange leakage lines (RAI response 3.1.2.2.7-1) and the compressed air system (RAI response B.2.1.9-7).

In letters dated December 3, 2009 (Agencywide Documents and Access Management System

[ADAMS] Accession Number ML093240095) and November 20, 2009 (ADAMS Accession Number ML091890836), the staff submitted RAIs related to the reactor vessel flange leakage lines, and to the station's compressed air system, respectively. DEK responded to the staffs RAIs by letters dated January 21, 2010 (ADAMS Accession Number ML100220066), and December 28, 2009 (ADAMS Accession Number ML100110061), respectively. During the teleconference, the staff indicated that the responses to the follow-up RAIs may require clarifications before the staff could complete its evaluation. The main issues discussed during the teleconference are summarized below.

RAI 3.1.2.2.7-1 (ADAMS Accession Number ML093240095):

• Staff had issued Kewaunee RAI number 3.1.2.2.7-1 in order to request more information on how applicant proposes to manage the possible stress corrosion cracking of the reactor vessel flange leakage detection lines. Staff was seeking clarifications as to how use of the applicant's new Work Control Program will factor in to management of potential stress corrosion cracking (SCC) for the lines.

• As a result of the discussions, both staff and applicant agreed that the ASME classification and functions of the leakage detection lines were such that applicant's proposal for managing potential of SCC were appropriate. It was agreed that no further information submittal is required for staff to complete its review of the response.

Dominion Energy Kewaunee, Inc. RAI B.2.1.9-7 (ADAMS Accession Number ML091890836):

• The applicants response to RAI B.2.1.9-7 indicated that the applicant performs leak tests on the safety-related special service air accumulators and their associated check valves to meet design basis requirements but not to manage the aging effects because no aging effects are applicable to the special service air accumulators and their associated check valves in a dried air condition, as indicated in LRA Table 3.3.2-8. Staff requested clarifications in light of applicant's Licensee Event Report (LER) of March 18, 1986; LER #: 86-002-00, which discussed appearance of rust particles in another part of the system.

• The applicant clarified that leak tests have been performed on the special service air accumulators and their associated check valves and no failure has been observed in the leak tests of the components. The staff and applicant agreed that the results of the leak tests indicate that the dried air environment, which the applicant claimed, is relevant for the special service accumulators and their associated check valves.

As a result of the discussions, it was agreed that the information already provided to the staff regarding the above RAIs was sufficient. A list of teleconference participants is enclosed.

/RA/

John Daily, Senior Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-305

Enclosure:

As stated cc w/encl: See next page

ML100710741 OFFICE PM:RPB1:DLR LA:RPOB:DLR BC:RPOB:DLR PM:RPB1:DLR NAME JDaily IKing JRobinson JDaily DATE 03/24/10 03/31/10 03/31/10 03/31/10 LIST OF PARTICIPANTS TELEPHONE CONFERENCE CALL DOMINION ENERGY KEWAUNEE, INC.,

KEWAUNEE POWER STATION February 3, 2010 PARTICIPANTS AFFILIATION John Daily U.S. Nuclear Regulatory Commission (NRC)

Girija Shukla NRC James Medoff NRC Seung Min NRC Dwight Diercks NRC (Contractor)

Paul Aitken Dominion Energy Kewaunee, Inc. (Dominion)

Stuart Thickman Dominion Marc Hotchkiss Dominion David Wootten Dominion John Voss Dominion ENCLOSURE

Kewaunee Power Station cc:

Resident Inspectors Office Mr. Paul C. Aitken U.S. Nuclear Regulatory Commission Supervisor - License Renewal Project N490 Hwy 42 Innsbrook Technical Center - 3NE Kewaunee, WI 54216-9510 5000 Dominion Boulevard Glen Allen, VA 23060-6711 Mr. Chris L. Funderburk Director, Nuclear Licensing and Mr. David A. Sommers Operations Support Supervisor - Nuclear Engineering Dominion Resources Services, Inc. Innsbrook Technical Center - 2SE Innsbrook Technical Center - 2SE 5000 Dominion Boulevard 5000 Dominion Boulevard Glen Allen, VA 23060-6711 Glen Allen, VA 23060-6711 Ms. Lillian M. Cuoco, Esq.

Mr. Thomas L. Breene Senior Counsel Dominion Energy Kewaunee, Inc. Dominion Resources Services, Inc.

Kewaunee Power Station 120 Tredegar Street N490 Highway 42 Riverside 2 Kewaunee, WI 54216 Richmond, VA 23219 Mr. Michael J. Wilson, Director Mr. Stephen E. Scace Nuclear Safety & Licensing Site Vice President Dominion Energy Kewaunee, Inc. Dominion Energy Kewaunee, Inc.

Kewaunee Power Station Kewaunee Power Station N490 Highway 42 N490 Highway 42 Kewaunee, WI 54216 Kewaunee, WI 54216 Mr. Daniel G. Stoddard Mr. David R. Lewis Senior Vice President - Nuclear Operations Pillsbury Winthrop Shaw Pittman, LLP Innsbrook Technical Center - 2SE 2300 N Street, N.W.

5000 Dominion Boulevard Washington, DC 20037-1122 Glen Allen, VA 23060-6711 Mr. Ken Paplham Mr. Alan J. Price E 4095 Sandy Bay Rd.

Vice President - Nuclear Engineering Kewaunee, WI 54216 Innsbrook Technical Center - 2SE 5000 Dominion Boulevard Mr. Jeff Kitsembel, P.E.

Glen Allen, VA 23060-6711 Public Service Commission of Wisconsin P.O. Box 7854 Mr. William D. Corbin Madison, WI 53707-7854 Director - Nuclear Engineering Innsbrook Technical Center - 3NE Mr. David A. Heacock 5000 Dominion Boulevard President and Chief Nuclear Officer Glen Allen, VA 23060-6711 Dominion Energy Kewaunee, Inc.

Innsbrook Technical Center - 2SW 5000 Dominion Boulevard Glen Allen, VA 23060-6711

Letter to Dominion Energy Kewaunee from John Daily dated March 31, 2010

SUMMARY

OF TELEPHONE CONFERENCE CALL BETWEEN DOMINION ENERGY KEWAUNEE, INC. AND THE U.S. NUCLEAR REGULATORY COMMISSION TO DISCUSS CERTAIN REQUEST FOR ADDITIONAL INFORMATION RESPONSES ON TWO MECHANICAL SYSTEMS (TAC NO.

MD9408)

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