ULNRC-06145, Callaway, Unit 1 - Pressure and Temperature Limits Report

Callaway, Unit 1 - Pressure and Temperature Limits Report

ML14272A341
Person / Time
Site:	Callaway
Issue date:	09/24/2014
From:	Maglio S A Ameren Missouri
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML14272A340	List: ML14272A341 ULNRC-06145, Callaway, Unit 1 - Pressure and Temperature Limits Report ULNRC-06145, Pressure and Temperature Limits Report, Revision 6
References
ULNRC-06145
Download: ML14272A341 (3)

Text

W Ameren M IS S O U RI Callaway Plant ****************************************************************************************************************************************************************************************************************************************************

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September 24, 2014 ULNRC-06145 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Ladies and Gentlemen:

10 CFR 50.36 DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO. FACILITY OPERATING LICENSE NPF-30 PRESSURE AND TEMPERATURE LIMITS REPORT Enclosed is the Callaway Plant Pressure and Temperature Limits Report (PTLR), Revision 6. This revision modifies the RCS pressure lower limits to allow for operation at pressures as low as negative 14.7 psi gauge. Revision 6 was developed in accordance with the NRC approved methodology in WCAP-14040-A , Revision 4, " Methodology Used to Develop Cold Overpressure M itigating System Setpoint and RCS Heatup and Cooldown Limit Curves," February, 2004. This report is provided to the NRC Staff for information in accordance with the requirements of Technical Specification 5.6.6.c. This letter does not contain new commitments.

TAW/nls Enclosure , ......................................................................................................................... . ...........................................................................................................................

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• • • • • • • • ...........................................................................................................................

Sincerely, A. \IV\ ) Scott A. Manager, Regulatory Affairs PO Box 620 Fulton, MD 65251 AmerenMissouri.com STARS* Alliance ..............

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ULNRC-06145 September 24, 2014 Page2 cc: Mr. Marc L. Dapas Regional Administrator U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. Fred Lyon Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8B 1 Washington, DC 20555-2738 ULNRC-06145 September 24,2014 Page 3 Index and send hardcopy to QA File A160.0761 Hardcopy:

Certrec Corporation 4150 International Plaza Suite 820 Fort Worth, TX 76109 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)

Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:

F. M. Diya D. W. Neterer L. H. Graessle B.L.Cox S. A. Maglio T. B. Elwood Corporate Communications NSRB Secretary Mr. Tim Diemler, Director (SEMA) Mr. Darrell Chute, Senior REP Planner (SEMA) STARS Regulatory Affairs Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP)