ML072260002

Closure of Confirmatory Action Letter NRR-07-013

ML072260002
Person / Time
Site:	Callaway
Issue date:	08/28/2007
From:	Catherine Haney NRC/NRR/ADRO/DORL/LPLIV
To:	Naslund C D Union Electric Co
Donohew J N, NRR/DLPM,415-1307
References
TAC MD4138, NRR-07-013
Download: ML072260002 (4)

Text

August 28, 2007Mr. Charles D. NaslundSenior Vice President and Chief Nuclear Officer Union Electric Company Post Office Box 620 Fulton, MO 65251

SUBJECT:

CALLAWAY PLANT, UNIT 1 - CLOSURE OF CONFIRMATORY ACTIONLETTER NRR-07-013 (TAC NO. MD4138)

Dear Mr. Naslund:

By letter dated March 29, 2007, the U.S. Nuclear Regulatory Commission (NRC) issuedConfirmatory Action Letter (CAL) No. NRR-07-013 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070680123) regarding dissimilar metal welds in the pressurizer nozzle and piping at Callaway Plant, Unit No. 1 (Callaway). The CAL confirmed actions that would be taken at Callaway in the spring 2007 refueling outage regarding pressurizer DM butt welds containing Alloy 82/182 material. In your letters dated January 31 and February 28, 2007 (ULNRC-05360 and ULNRC-05373, ADAMS Accession Nos. ML070380277 and ML070670457, respectively), you described commitments that addressed: (1) completion schedules for inspection/mitigation of the welds; (2) reactor coolant system (RCS) leak monitoring frequency, action levels, and actions; and (3) reporting requirements.This letter acknowledges receipt of your letters dated May 4 and July 9, 2007 (ULNRC-05413and ULNRC-05424, ADAMS Accession Nos. ML071300382 and ML071980376, respectively),

informing the NRC of the actions taken in response to the CAL. In your letters, you stated that during the last refueling outage at Callaway Plant (i.e., spring 2007), full structural weld overlays were installed for the pressurizer safety, relief, spray, and surge line nozzle welds, and that appropriate inspections were performed in accordance with the qualification requirements of the industry's Performance Demonstration Initiative on the pressurizer weld overlays following their installation during the outage. Based on our review of your letters dated May 4 and July 9, 2007, the NRC has found that thecommitments listed in the CAL and the supporting commitment letters dated January 31 and February 28, 2007, have been met. Therefore, no further response is required from you regarding the CAL for Callaway, and we consider the CAL closed. As such, it is no longer necessary for you to implement the enhanced inspection and RCS leakage monitoring requirements that were listed in the CAL. The actions taken in response to the CAL may be examined during a future NRC inspection at Callaway.This completes NRC staff action for this CAL and closes the subject TAC No. MD4138. If youhave any questions concerning this letter, contact Jack Donohew, Project Manager for Callaway at 301-415-1307, or via e-mail at jnd@nrc.gov.

C. Naslund-2-Current NRC guidance regarding CALs is contained in the NRC Enforcement Policy and theNRC Enforcement Manual, which are available at the NRC web site at http://www.nrc.gov/about-nrc/regulatory/enforcement.html (click on Enforcement Policy orEnforcement Guidance) or by contacting the Government Printing Office (GPO) toll-free at 1-888-293-6498. The GPO is open from 7:00 a.m. to 9:00 p.m. EST, Monday through Friday (except Federal holidays).In accordance with Section 2.390 of Title 10 of the Code of Federal Regulations of the NRC's"Rules of Practice," a copy of this letter will be made available electronically for public inspection in the NRC Public Document Room or from the NRC's document system (ADAMS),

accessible from the NRC Web site at http://www.nrc.gov/reading-rm.html. Sincerely,/RA/Catherine Haney, Director Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-483 cc: See next page

ML072260002OFFICELPL4/PMLPL4/LADCI/CPNBLPL4/BCDCI/DNAMEJDonohewJBurkhardtTLupoldTHiltzMevans, WHB for DATE8/16/078/15/078/21/078/23/078/21/07 OFFICEDRP/D RIVDORL/D NAMEDChamberlain,WJones for CHaneyDATE8/24/078/28/07 June 2007Callaway Plant, Unit 1 cc:John O'Neill, Esq.

Pillsbury Winthrop Shaw Pittman LLP 2300 N. Street, N.W.

Washington, D.C. 20037Mr. Keith A. Mills, Supervising EngineerRegional Regulatory Affairs/Safety Analysis AmerenUE P.O. Box 620 Fulton, MO 65251U.S. Nuclear Regulatory CommissionResident Inspector Office

8201 NRC Road Steedman, MO 65077-1302Mr. Les H. KanuckelManager, Quality Assurance AmerenUE P.O. Box 620 Fulton, MO 65251Missouri Public Service CommissionGovernor Office Building 200 Madison Street P.O. Box 360 Jefferson City, MO 65102-0360Regional Administrator, Region IVU.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005Mr. H. Floyd GilzowDeputy Director for Policy Department of Natural Resources P.O. Box 176 Jefferson City, MO 65102-0176Mr. Rick A. MuenchPresident and Chief Executive Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KA 66839Certrec Corporation4200 South Hulen, Suite 422 Fort Worth, TX 76109Technical Services Branch ChiefFEMA Region VII 2323 Grand Boulevard, Suite 900 Kansas City, MO 64108-2670Mr. Dan I. Bolef, PresidentKay Drey, Representative Board of Directors Coalition for the Environment 6267 Delmar Boulevard University City, MO 63130Mr. Lee Fritz, Presiding CommissionerCallaway County Courthouse 10 East Fifth Street Fulton, MO 65251Mr. David E. Shafer Superintendent, Licensing Regulatory Affairs AmerenUE P.O. Box 620 Fulton, MO 65251Manager, Regulatory AffairsAmerenUE P.O. Box 620 Fulton, MO 65251Mr. Keith G. Henke, PlannerDivision of Community and Public Health Office of Emergency Coordination 930 Wildwood P.O. Box 570 Jefferson City, MO 65102Director, Missouri State Emergency Management Agency P.O. Box 116 Jefferson City, MO 65102-0116Mr. Scott Clardy, DirectorSection for Environmental Public Health P.O. Box 570 Jefferson City, MO 65102-0570