ML042040010

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Withdrawal of Request to Apply ASCE 4-86 Methodology
ML042040010
Person / Time
Site: Callaway Ameren icon.png
Issue date: 07/20/2004
From: Donohew J
NRC/NRR/DLPM/LPD4
To: Randolph G
Union Electric Co
Donohew J N, NRR/DLPM,415-1307
References
TAC MB9879
Download: ML042040010 (6)


Text

July 20, 2004 Mr. Garry L. Randolph Vice President and Chief Nuclear Officer Union Electric Company Post Office Box 620 Fulton, MO 65251

SUBJECT:

CALLAWAY PLANT, UNIT 1 - WITHDRAWAL OF REQUEST TO APPLY ASCE 4-86 METHODOLOGY (TAC NO. MB9879)

Dear Mr. Randolph:

The Commission issued Amendment No. 161 for the Callaway Plant, Unit 1 (Callaway) in its letter dated April 12, 2004, that approved your license amendment request dated June 27, 2003 (ULNRC-04868), to install an opening in the secondary shield wall inside containment. In that amendment, however, the Commission did not approve the requests for the application of (1) leak-before-break (LBB) for the pressurizer surge line, and (2) the American Society of Civil Engineers (ASCE) 4-86 "100-40-40" load combination methodology for combining components of seismic response loads. In our April 12, 2004, letter, the staff requested that you provide additional information concerning effective mitigative measures for LBB and the ASCE 4-86 methodology. Your letter dated July 2, 2004 (ULNRC-050201), addresses this request for additional information.

In the letter of July 2, 2004, the request to apply ASCE 4-86 is withdrawn and it is stated that the additional information regarding effective mitigative measures for LBB for the pressurizer surge line will be submitted prior to November 30, 2004. With this letter, we are closing out our review of your application dated June 27, 2003, because the review of LBB for the pressurizer surge line no longer applies to the original request for installing an opening in the shield wall.

The subject TAC will be closed and a new TAC number will be taken out when the additional information is submitted. In that future submittal, a reference can be made to the topical report on the pressurizer surge line that was included with the application dated June 27, 2003. The enclosed Notice of Partial Withdrawal of Application for Amendment to Facility Operating License has been forwarded to the Office of the Federal Register for publication.

Sincerely,

/RA/

Jack Donohew, Senior Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-483

Enclosure:

Notice cc w/encl: See next page

July 20, 2004 Mr. Garry L. Randolph Vice President and Chief Nuclear Officer Union Electric Company Post Office Box 620 Fulton, MO 65251

SUBJECT:

CALLAWAY PLANT, UNIT 1 - WITHDRAWAL OF REQUEST TO APPLY ASCE 4-86 METHODOLOGY (TAC NO. MB9879)

Dear Mr. Randolph:

The Commission issued Amendment No. 161 for the Callaway Plant, Unit 1 (Callaway) in its letter dated April 12, 2004, that approved your license amendment request dated June 27, 2003 (ULNRC-04868), to install an opening in the secondary shield wall inside containment. In that amendment, however, the Commission did not approve the requests for the application of (1) leak-before-break (LBB) for the pressurizer surge line, and (2) the American Society of Civil Engineers (ASCE) 4-86 "100-40-40" load combination methodology for combining components of seismic response loads. In our April 12, 2004, letter, the staff requested that you provide additional information concerning effective mitigative measures for LBB and the ASCE 4-86 methodology. Your letter dated July 2, 2004 (ULNRC-050201), addresses this request for additional information.

In the letter of July 2, 2004, the request to apply ASCE 4-86 is withdrawn and it is stated that the additional information regarding effective mitigative measures for LBB for the pressurizer surge line will be submitted prior to November 30, 2004. With this letter, we are closing out our review of your application dated June 27, 2003, because the review of LBB for the pressurizer surge line no longer applies to the original request for installing an opening in the shield wall.

The subject TAC will be closed and a new TAC number will be taken out when the additional information is submitted. In that future submittal, a reference can be made to the topical report on the pressurizer surge line that was included with the application dated June 27, 2003. The enclosed Notice of Partial Withdrawal of Application for Amendment to Facility Operating License has been forwarded to the Office of the Federal Register for publication.

Sincerely,

/RA/

Jack Donohew, Senior Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-483 DISTRIBUTION:

PUBLIC KManoly

Enclosure:

Notice PDIV-2 Reading TChan RidsNrrDlpmPdiv (HBerkow) cc w/encl: See next page RidsNrrPMJDonohew RidsNrrLAEPeyton RidsOgcRp RidsACRSACNWMailCenter RidsRegion4MailCenter (D. Graves)

RidsNrrDlpmDpr ACCESSION NO.: ML042040010 Nrr-106 OFFICE PDIV-2/PM PDIV-2/LA PDIV-2/SC NAME JDonohew:mp EPeyton SDembek DATE 7/20/04 7/20/04 7/20/04 DOCUMENT NAME: C:\\ORPCheckout\\FileNET\\ML042040010.wpd OFFICIAL RECORD COPY

Callaway Plant, Unit 1 cc:

Professional Nuclear Consulting, Inc.

19041 Raines Drive Derwood, MD 20855 John ONeill, Esq.

Shaw, Pittman, Potts & Trowbridge 2300 N. Street, N.W.

Washington, D.C. 20037 Mr. Mark A. Reidmeyer, Regional Regulatory Affairs Supervisor Regulatory Affairs AmerenUE P.O. Box 620 Fulton, MO 65251 U.S. Nuclear Regulatory Commission Resident Inspector Office 8201 NRC Road Steedman, MO 65077-1302 Mr. Chris Younie Manager, Quality Assurance AmerenUE P.O. Box 620 Fulton, MO 65251 Manager - Electric Department Missouri Public Service Commission 301 W. High P.O. Box 360 Jefferson City, MO 65102 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Mr. Ronald A. Kucera Deputy Director for Public Policy Department of Natural Resources P.O. Box 176 Jefferson City, Missouri 65102 Mr. Rick A. Muench President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KA 66839 Mr. Dan I. Bolef, President Kay Drey, Representative Board of Directors Coalition for the Environment 6267 Delmar Boulevard University City, MO 63130 Mr. Lee Fritz, Presiding Commissioner Callaway County Court House 10 East Fifth Street Fulton, MO 65151 Mr. David E. Shafer Superintendent, Licensing Regulatory Affairs AmerenUE P.O. Box 66149, MC 470 St. Louis, MO 63166-6149 Mr. Keith D. Young Manager, Regulatory Affairs AmerenUE P.O. Box 620 Fulton, MO 65251 Mr. Scott Clardy, Director Section for Environmental Public Health P.O. Box 570 Jefferson City, MO 65102-0570 Certrec Corporation 4200 South Hulen, Suite 630 Fort Worth, TX 76109

7590-01-P UNITED STATES NUCLEAR REGULATORY COMMISSION UNION ELECTRIC COMPANY DOCKET NO. 50-483 NOTICE OF PARTIAL WITHDRAWAL OF APPLICATION FOR AMENDMENT TO FACILITY OPERATING LICENSE The U.S. Nuclear Regulatory Commission (the Commission) has granted the request of Union Electric Company (the licensee) to partially withdraw its June 27, 2003, application for proposed amendment to Facility Operating License No. NPF-30 for the Callaway Plant, Unit 1, located in Callaway County, Missouri.

The request for amendment to the operating license in the application dated June 27, 2003, would allow plant modifications in order to facilitate maintenance on the replacement steam generators (SGs) to be installed in Refueling Outage (RO) 14 (Fall 2005).

The proposed modifications (1) replace the existing sludge lance platforms with new platforms to provide a larger platform area around each SG, and (2) cut a permanent access opening through the secondary shield wall to improve access to the sludge lance platforms, which are to be done in RO 13 (Spring 2004). To allow these modifications, the licensee requested approval of the use of (1) the ASCE 4-86 "100-40-40" method of combining components of seismic response loads, and (2) leak-before-break (LBB) methodology for the accumulator, pressurizer surge, and residual heat removal (RHR) lines to exclude the dynamic effects associated with large reactor coolant system branch line ruptures. The amendment approving the installation of the permanent access opening through the secondary shield wall and the use of LBB for the accumulator and RHR lines was issued April 12, 2004, and the opening was installed by the licensee in RO 13.

The Commission had previously issued a Notice of Consideration of Issuance of Amendment published in the Federal Register on July 22, 2003 (68 FR 43397) for the application for amendment dated June 27, 2003. However, by letters dated April 5 and July 2, 2004, the licensee withdrew portions of its amendment request. The letter dated April 5, 2004, revised the original request for application of LBB on the pressurizer surge line and the letter dated July 2, 2004, withdrew its request to use the ASCE 4-86 methodology.

The Commission has previously issued a Notice of Partial Withdrawal of Application for Amendment published in the Federal Register on April 20, 2004 (69 FR 21166) for the letter dated April 5, 2004. This Notice of Partial Withdrawal of Application for Amendment is for the letter dated July 2, 2004.

For further details with respect to this action, see the application for amendment dated June 27, 2003, and the licensees letter dated July 2, 2004, which partially withdrew the application for license amendment. Documents may be examined, and/or copied for a fee, at the NRCs Public Document Room (PDR), located at One White Flint North, Public File Area O1F21, 11555 Rockville Pike (first floor), Rockville, Maryland. Publicly available records will be accessible electronically from the Agencywide Documents Access and Management Systems (ADAMS) Public Electronic Reading Room on the internet at the NRC Web site, http://www.nrc.gov/reading-rm/adams/html. Persons who do not have access to ADAMS or who encounter problems in accessing the documents located in ADAMS, should contact the NRC PDR Reference staff by telephone at 1-800-397-4209, or 301-415-4737 or by email to pdr@nrc.gov.

Dated at Rockville, Maryland, this 20th day of July 2004.

FOR THE NUCLEAR REGULATORY COMMISSION

/RA/

Jack Donohew, Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation