ML16161A819

Waterford, Unit 3 - Annual Report on Westinghouse Electric Company LLC Combustion Engineering Emergency Core Cooling System Performance Evaluation Models for Calendar Year 2015

ML16161A819
Person / Time
Site:	Waterford
Issue date:	06/09/2016
From:	Jarrell J P Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
W3F1-2016-0044
Download: ML16161A819 (4)

Text

10 CFR 50.46W3F1-2016-0044June 9, 2016U.S. Nuclear Regulatory CommissionAttn: Document Control DeskWashington, DC 20555-0001

Subject:

Annual Report on Westinghouse Electric Company LLC CombustionEngineering Emergency Core Cooling System Performance EvaluationModels for Calendar Year 2015Waterford Steam Electric Station Unit 3Docket No. 50-382License No. NPF-38

Dear Sir or Madam:

This letter provides the Waterford Steam Electric Station Unit 3 (Waterford 3)10 CFR 50.46(a)(3)(ii) reporting information pertaining to the Westinghouse ElectricCompany Emergency Core Cooling System (ECCS) performance Evaluation Models(EMs) for calendar year 2015.There were no changes, error corrections, or enhancements to the 1999 EvaluationModel (EM) which is used in the Large Break Loss-of-Coolant Accident (LBLOCA)Emergency Core Cooling Systems (ECCS) performance analysis. In addition, there were nochanges, error corrections, or enhancements to the Supplement 2 Evaluation Model (S2M)which is the EM used in the Small Break Loss-of-Coolant Accident (SBLOCA) ECCSperformance analysis.This letter contains no new commitments.If you have any questions, or require additional information, please contact John Jarrell at504-739-6685.

Attachment:

Waterford Steam Electric Station Unit 3 10 CFR 50.46 Annual Notification andReporting for 2015Entergy Operations, Inc.17265 River RoadKillona, LA 70057-3093Tel 504 739 6685Fax 504 739 6698jjarrel@entergy.comJohn P. Jarrell, IIIManager, Regulatory AssuranceWaterford 3 W3F1-2016-0044Page 2cc: Mr. Mark L. Dapas,Regional AdministratorRidsRgn4MailCenter@nrc.govNRC Senior Resident InspectorFrances.Ramirez@nrc.govChris.Speer@nrc.govNRC Project Manager for Waterford 3April.Pulvirenti@nrc.gov Attachment toW3F1-2016-0044Waterford Steam Electric Station Unit 3 10 CFR 50.46 Annual Notification andReporting for 2015 Attachment toW3F1-2016-0044Page1 of1Waterford Steam Electric Station Unit 3 10 CFR 50.46 Annual Notification and Reportingfor 2015There were no changes, error corrections, or enhancements to the 1999 Evaluation Model(EM), which is the EM used in Waterford 3 Large Break Loss-of-Coolant Accident (LBLOCA)Emergency Core Cooling System (ECCS) performance analysis in calendar year 2015. Inaddition, there were no changes, error corrections or enhancements to the Supplement 2Evaluation Model (S2M), which is the EM used in Waterford 3 Small Break Loss-of-CoolantAccident (SBLOCA) ECCS performance analysis in calendar year 2015.The limiting PCT results for the large and small break LOCAs continue to meet the criteria of 10CFR 50.46, paragraph (b) for calendar year 2015.A summary of the information related to peak clad temperatures (PCT) and adjustment to peakclad temperatures is provided in the following table:Summary of Information for Waterford 3 10 CFR 50.46 Annual Report for 2015Analysis of Record(AOR) Peak CladdingTemperature (PCT),oFEvaluation Model (EM)UsedAOR DateAdjustmentas of End-of-Year(EOY) 2015, (oF)Net PCTat the EOY 2015,(oF)Small-BreakLoss-of-CoolantAccident(SBLOCA)1925S2M6/19/2009-271898Large-BreakLoss-of-CoolantAccident(LBLOCA)20921999EM7/16/200902092