ML080940451

Summary of 12/6/2006 Meeting with Omaha Public Power District, Regarding Water Management Strategies for Resolution of GSI-191 (Tac No MD5780)

ML080940451
Person / Time
Site:	Fort Calhoun
Issue date:	04/18/2008
From:	Wang A NRC/NRR/ADRO/DORL/LPLIV
To:	Hiltz T NRC/NRR/ADRO/DORL/LPLIV
Wang, A B, NRR/DORL/LPLIV, 415-1445
References
GSI-191, TAC MC5780
Download: ML080940451 (5)

Text

April 18, 2008 MEMORANDUM TO: Thomas G. Hiltz, Chief Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Alan B. Wang, Project Manager /RA/

Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

SUMMARY

OF DECEMBER 12, 2006, MEETING WITH OMAHA PUBLIC POWER DISTRICT (OPPD) (TAC NO. MC5780)

Omaha Public Power District (OPPD, the licensee) met with the U.S. Nuclear Regulatory Commission (NRC) staff on December 12, 2006, to discuss its proposal for resolution of Generic Safety Issue-191 (GSI-191). The NRC staff previously met with OPPD on September 21, 2006, to discuss the water management strategies proposed by OPPD to help resolve GSI-191 concerns. OPPD had recently requested, and the NRC staff had approved, an extension to the completion date of the GSI-191 efforts. OPPD stated it will complete the actions stated in its request for the fall 2006 refueling outage. However, as the result of some of the chemical effects testing, OPPD is concerned as to whether they will be able to complete the analysis to finalize the final resolution of GSI-191 by the extension date. OPPD is looking at different water management strategies that would allow it to meet its commitment for completion of the GSI-191 effort by April 2008.

OPPD has reviewed several options for the resolution of GSI-191 and has determined, due to chemical effects concerns, several options are viable but prohibitive because of space or cost.

These options include larger strainers, removing additional insulation, and/or removing aluminum sources from containment. OPPD believes the most attractive option currently is to change the engineering safety feature actuation system logic to eliminate containment spray for a loss-of-coolant accident and only run high-pressure safety injection during recirculation. This would double the time to recirculation and significantly reduce the load to the filters. OPPD proposes to have an amendment to implement this water management strategy by June 2007.

The NRC staff stated that the approach appears reasonable. OPPD noted that to meet its commitment for the resolution of GSI-191, the amendment would need to be approved by April 2008. The NRC staff acknowledged the time constraints.

A list of attendees is attached. The OPPD presentation slides are available in the Agencywide Documents Access and Management System (ADAMS) under ADAMS Accession No. ML080910438.

T. Hiltz .

The NRC staff recently noted that a meeting summary for the December 12, 2006, meeting was not placed in ADAMS. As a result this meeting summary is being issued to provide an official agency record of the meeting.

Docket No. 50-285

Enclosure:

List of Attendees cc w/encl: See next page

PKG: ML081000002, MTG Notice: ML063310234, MTG Summary: ML080940451, Presentation: ML080910438 OFFICE NRR/LPL4/PM NRR/LPL4/LA NRR/LPL4/BC NAME AWang JBurkhardt THiltz DATE 4/18/08 4/14/08 4/18/08 Ft. Calhoun Station, Unit 1 (11/26/2007) cc:

Winston & Strawn ATTN: James R. Curtiss, Esq.

1700 K Street, N.W.

Washington, DC 20006-3817 Chairman Washington County Board of Supervisors P.O. Box 466 Blair, NE 68008 Mr. John Hanna, Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 310 Fort Calhoun, NE 68023 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Ms. Julia Schmitt, Manager Radiation Control Program Nebraska Health & Human Services R & L Public Health Assurance 301 Centennial Mall, South P.O. Box 95007 Lincoln, NE 68509-5007 Mr. Thomas Matthews Manager - Nuclear Licensing Omaha Public Power District Fort Calhoun Station FC-2-4 Adm.

P.O. Box 550 Fort Calhoun, NE 68023-0550 Ms. Melanie Rasmussen Radiation Control Program Officer Bureau of Radiological Health Iowa Department of Public Health Lucas State Office Building, 5th Floor 321 East 12th Street Des Moines, IA 50319

MEETING WITH OMAHA PUBLIC POWER DISTRICT (OPPD)

LIST OF ATTENDEES December 12, 2006 NRC OPPD T. Collins J. Gasper A. Wang T. Matthews, et al P. Klein M. Scott J. Lehning R. Dennig R. Landry